A connecting fitting for a tilted tube busbar

Abstract

A connecting fitting of an inclined pipe bus, comprising a base plate, a pipe bus clamp and a movable rotating part arranged on the base plate; the rotating part comprises a fixed disc connected with the base plate, a movable disc rotatably connected with the fixed disc at one end, and a round end cover of the pipe bus is sleeved on the other end of the movable disc; one end of the pipe bus clamp is fixed with the pipe bus, and the other end of the pipe bus clamp is hingedly connected with the base plate, and the pipe bus clamp is used to hinge the pipe bus with the base plate; the position of the fixed disc on the base plate is adjusted, so that the other end of the movable disc supports the pipe bus to keep the hinged position of the pipe bus with the base plate unchanged. The present application maintains the inclination angle of the pipe bus relative to the base plate unchanged by the movable disc always supporting the round end cover of the pipe bus, and the inclined pipe bus is firmly positioned. In addition, compared with directly connecting the inclined pipe bus to the horizontal pipe bus, the inclined pipe bus is more convenient to disassemble, and it is also convenient to adjust the inclination angle of the pipe bus.

Description

Technical Field

[0001] This invention relates to the field of busbar connection technology, and in particular to a connection fitting for an inclined busbar. Background Technology

[0002] When connecting disconnect switches to other equipment in the neutral zone within the Butor DC field and selecting busbars for current carrying, inclined busbars and connecting fittings are often used to maintain the inclination of the busbars.

[0003] Existing technologies, such as the Chinese utility model patent with application number CN201120269262.X, application date July 27, 2011, entitled "A T-connection fixing hardware adaptable to any angle of the busbar"; and the Chinese invention patent with application number CN201711409241.1, application date December 22, 2017, entitled "A busbar jumper structure and its busbar support hardware," both use a support hardware with rotation function to directly connect an inclined busbar and a horizontal busbar. Another approach uses the tube bodies of two busbars as connection points, connecting the two tube bodies to a busbar clamp, and then connecting the busbar clamps together through a rotating component with rotation function.

[0004] During the use of busbars, the ends of the busbars experience greater vibrations when subjected to external forces such as wind compared to other parts. When the area near the ends of the busbars needs to serve as a tilting support point, higher installation requirements are imposed. Simply supporting the busbar body with support hardware without a secure support can pose safety hazards over long-term use.

[0005] Therefore, there is an urgent need for a connecting fitting suitable for supporting the inclined ends of the busbar. Summary of the Invention

[0006] The purpose of this invention is to provide a connecting fitting for a tilted busbar that provides stable support at the end of a busbar.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A connecting fitting for an inclined busbar includes a base plate, a busbar clamp, and a rotating component that can approach or move away from the busbar.

[0009] The rotating component includes a fixed disk connected to the base plate, a movable disk with one end rotatable from the fixed disk, and the round end cap of the busbar is sleeved on the other end of the movable disk.

[0010] One end of the busbar clamp holds the busbar tightly, and the other end of the busbar clamp is rod-shaped and hinged to the base plate. The busbar clamp hinges the upwardly inclined busbar to the base plate.

[0011] Adjust the position of the fixed plate on the base plate so that the other end of the movable plate supports the round end cap to keep the hinged position of the tube busbar and the base plate unchanged.

[0012] Furthermore, the other end of the movable disc includes an insulating pad, and the rotating component also includes an annular insulating pad that abuts against the insulating pad and the round end cap. The insulating pad has a circular groove for accommodating the insulating pad, and the round end cap is fitted over the insulating pad.

[0013] Furthermore, the rotating component includes a plurality of insulating pads, each insulating pad having a positioning protrusion on its top surface and a positioning groove on its bottom surface, the positioning protrusion and the positioning groove being used to stack adjacent insulating pads.

[0014] Furthermore, the insulating pad is provided with water passage holes.

[0015] Furthermore, a fixing plate is provided at the bottom of the fixing plate, and the fixing plate has a strip-shaped hole. Different positions of the strip-shaped hole are fixed to the base plate by connectors to allow the fixing plate to move closer to or further away from the busbar.

[0016] Furthermore, the rotating component also includes a locking element, wherein the fixed disk and the movable disk are coaxially rotatably connected, and the locking element is used to control the rotational position of the fixed disk and the movable disk.

[0017] Furthermore, a fixing rod is fixed to the radial outer side of the fixed plate, and an arc-shaped movable hole is opened at the corresponding position of the movable plate. The fixing rod passes through the movable hole, and the locking fastener locks the relative position of the fixing rod and the movable hole.

[0018] The rotating component also includes a rotating shaft passing through the fixed disk and the movable disk, with the fixed disk and the movable disk respectively rotatably connected to the rotating shaft.

[0019] Furthermore, the fixed disk and the movable disk are in contact via a pair of meshing gear surfaces.

[0020] Furthermore, the locking element includes a nut, and the end of the fixing rod is threadedly connected to the nut.

[0021] Furthermore, a nut is provided at one end of the rotating shaft, and a nut is threaded onto the other end of the rotating shaft, so that the fixed disk and the movable disk can be clamped onto the rotating shaft.

[0022] In the above technical solution, the connecting hardware for the inclined busbar provided by the present invention has the following characteristics:

[0023] Beneficial effects:

[0024] This design utilizes a base plate as a connection medium for two busbars. Unlike existing technologies, which involve direct installation and connection of the two busbars, this design allows each busbar to be individually installed and connected to the base. In case of maintenance, only one busbar needs to be removed without affecting the use of the other.

[0025] Furthermore, the end of the busbar is sealed with a round end cap, which is a cylinder recessed into the busbar. The round end cap fits over the other end of the rotatable movable disc; simply attach the end of the busbar to the other end of the movable disc. The movable disc is mounted on the base plate, and the movable disc and the busbar are movably connected without any locking clips or fasteners. This further improves the ease of disassembling the busbar.

[0026] Furthermore, a busbar clamp is used to achieve a hinged connection between the busbar and the base plate. The position of the rotating component on the base plate is adjusted so that the other end of the movable plate always supports the round end cap from below the busbar. The movable plate is positioned along the axis of the busbar to maintain a constant hinge angle between the busbar and the base plate. The rotating component precisely positions the busbar, reducing busbar vibration. Utilizing the gravity of the upwardly tilted busbar, the rotating component is firmly pressed between the round end cap and the base, connecting the hardware while preventing the busbar from getting stuck on the base. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0028] Figure 1 This is a schematic diagram of the structure of the connecting hardware disclosed in this invention;

[0029] Figure 2 This is a three-dimensional structural schematic diagram of the connecting hardware disclosed in this invention;

[0030] Figure 3 This is a schematic diagram of the structure of a round end cap in the prior art;

[0031] Figure 4 This is a schematic diagram of the structure of the busbar clamp disclosed in this invention;

[0032] Figure 5 This is a schematic diagram of the assembly structure of the insulating pad and insulating gasket disclosed in this invention;

[0033] Figure 6 This is a schematic diagram of the structure of the insulating pad disclosed in this invention.

[0034] Figure label:

[0035] 1. Base plate, 2. Busbar clamp, 3. Rotating component, 31. Fixed plate, 32. Movable plate, 33. Insulating pad, 33. Circular groove, 331. Water passage hole, 332. Positioning protrusion, 341. Insulating gasket, 34. Positioning groove, 342. Fixed plate, 311. Fixed rod, 312. Movable hole, 313. Rotating shaft, 35. Circular end cap, 4. Current-carrying conductor. Detailed Implementation

[0036] To enable those skilled in the art to better understand the technical solution of this invention, the invention will be further described in detail below with reference to the accompanying drawings.

[0037] See Figure 1-6 The shown is a connecting hardware for an inclined busbar, including a base plate 1, a busbar clamp 2, and a rotating component 3 that can be brought close to or moved away from the busbar.

[0038] Among them, such as Figure 1 As shown, the base plate 1 is used to support the ends of horizontal busbars and the ends of upward and outward inclined busbars. The rotating component 3 and the busbar clamp 2 are both mounted on the base plate 1.

[0039] Among them, such as Figure 4 As shown, the busbar clamp is composed of a ring and a rod. The ring of the busbar clamp 2 is used to hold and tighten the busbar. The other end of the busbar clamp 2 is rod-shaped, with one end of the rod fixing the ring and the other end hinged to the base plate 1. The function of the busbar clamp 2 is to achieve the hinged connection between the upwardly inclined busbar and the base plate 1.

[0040] The rotating component 3 is used to maintain the hinge angle between the upwardly inclined busbar and the base plate 1. The rotating component 3 includes a fixed disk 31 connected to the base plate 1, a movable disk 32 with one end rotatable from the fixed disk 31, and a round end cap 4 of the busbar fitted onto the other end of the movable disk 32.

[0041] Specifically, the fixed plate 31 is connected to the base plate 1. Adjusting the position of the fixed plate 31 on the base plate 1 can adjust the position of the rotating component 3 to move closer to or further away from the busbar. The connection method between the fixed plate 31 and the base plate 1 can be referenced from that of a linear motion mechanism.

[0042] More preferably, an electric slide rail is provided on the base plate 1, and an electric slider is fixed on the fixed plate 31.

[0043] More preferably, the bottom of the fixed plate 31 is provided with a fixed plate 311 that fits against the base plate 1. The fixed plate 311 has strip-shaped holes, and the fixed plate 31 is fixed to the base plate 1 at different positions by connecting parts to allow the fixed plate 31 to move closer to or further away from the busbar. Specifically, the fixed plate 311 has two parallel strip-shaped holes, and each strip-shaped hole is fixed to the base plate 1 by bolts. In use, the position of the fixed plate 311 is adjusted first, and then the bolts are tightened to fix the position of the fixed plate 31. The base plate 1 only needs to have two holes for installing bolts to connect the base plate 1 to the rotating parts, and can be removed at any time when not in use.

[0044] Specifically, in existing technology, the ends of the busbar are sealed with round end caps, such as... Figure 3 The image shows a cylinder that is recessed into the busbar.

[0045] Specifically, one end of the movable disc 32 is rotatably connected to the fixed disc 31, and its rotational position can be fixed. The other end of the movable disc is a cylindrical structure that can extend into the round tube cover 4, and the round tube cover 4 presses down on the other end of the movable disc from above. The movable disc 32 serves to coaxially or nearly coaxially support the end of the tube busbar. However, when the hinge angle of the tube busbar changes, the angle between the axis of the tube busbar and the base changes. Therefore, in order to ensure that the other end of the movable disc always extends into the round end cover, not only is the fixed disc 32 moved to drive the movable disc to move, but the movable disc 32 is also rotatably connected to the fixed disc 31. The movable disc 32 can rotate freely relative to the fixed disc 31. The technical solution for achieving rotation relative to both can be found in the prior art, such as the structure of the disc-type terminal block in Chinese Utility Model Patent Application No. CN201120269262.X, filed on July 27, 2011, entitled "A T-connection fixing hardware adaptable to arbitrary angles of tube busbars".

[0046] In use, adjust the position of the fixed plate 31 on the base plate 1 so that the other end of the movable plate 32 supports the round end cap 4 to keep the hinged position between the tube busbar and the base plate 1 unchanged. The round end cap 4 is fitted onto the other end of the rotatable movable plate 32, and it is only necessary to fasten the end of the tube busbar onto the other end of the movable plate 32.

[0047] Compared to existing technologies, this invention does not directly utilize busbar clamps to hinge the busbars and fix their tilt position using busbar clamp 2. Instead, busbar clamp 2 independently achieves the hinge connection between the busbar clamp and the base; a rotating component supports the busbar clamp's end between the end and the base plate 1. This prevents excessive rotation of the busbar, as the end of the busbar is directly engaged with the base plate 1. Using the base plate as the connection medium for the two busbars, unlike existing technologies where the two busbars are directly installed and connected, each busbar is separately installed and connected to the base. When maintenance is required, only one busbar can be disassembled without affecting the use of the other busbar.

[0048] Furthermore, the end of the busbar is sealed with a round end cap, which is a cylinder recessed into the busbar. The round end cap fits over the other end of the rotatable movable disc; simply attach the end of the busbar to the other end of the movable disc. The movable disc is mounted on the base plate, and the movable disc and the busbar are movably connected without any locking clips or fasteners. This further improves the ease of disassembling the busbar.

[0049] Furthermore, a busbar clamp is used to achieve a hinged connection between the busbar and the base plate. The position of the rotating component on the base plate is adjusted so that the other end of the movable plate always supports the round end cap from below the busbar. The movable plate is positioned along the axis of the busbar to maintain a constant hinge angle between the busbar and the base plate. The rotating component precisely positions the busbar, reducing busbar vibration. Utilizing the gravity of the upwardly tilted busbar, the rotating component is firmly pressed between the round end cap and the base, connecting the hardware while preventing the busbar from getting stuck on the base.

[0050] Preferably, the technical solution for supporting the round end cap 4 at the other end of the movable plate 32 is as follows: the other end of the movable plate 32 is an insulating pad 33, and the rotating component 3 also includes an insulating gasket 34 placed between the insulating pad 33 and the round end cap 4. The insulating pad 33 has a circular groove 331 for accommodating the insulating gasket 34, and the round end cap 4 is fitted over the insulating gasket 34. The insulating gasket 34 is annular and made of insulating materials such as nylon, which can keep the rotating component 3 insulated from the busbar and will not change the electric field of the original fittings due to the addition of connecting hardware. The horizontal busbar and the inclined busbar are connected by current-carrying conductors 5, and the current conduction between the busbars ensures safe operation. The other end of the movable plate 32 is designed as a separate structure of the insulating pad 33 and the insulating gasket 34, which facilitates insulation; in addition, there is no fastener connection between the insulating gasket 34 and the insulating pad 33, and the insulating pad 33 can be placed in the circular groove 331, which also makes it easy to replace the insulating gasket 34. Furthermore, the insulating pads 33 and 34 are made of nylon, which can effectively reduce vibration and noise. This reduces costs compared to making the entire movable disc 32 a vibration-damping and insulating material.

[0051] The outer diameter of the insulating pad 33 is larger than the outer diameter of the round end cap 4. The insulating pad 33 does not enter the interior of the round end cap 4, serving to insulate and block the round end cap 4. The outer diameter of the insulating gasket 34 is less than or equal to the inner diameter of the round end cap 4. The insulating gasket 34 can abut between the insulating pad 33 and the round end cap 4, or the round end cap 4 can rest on the insulating pad 33. Preferably, the insulating gasket 34 is coaxially abutted between the insulating pad 33 and the round end cap 4.

[0052] Preferably, the rotating component 3 includes a plurality of insulating pads 34. Each insulating pad 34 has a positioning protrusion 341 on its top surface and a positioning groove 342 on its bottom surface. The positioning protrusion 341 and the positioning groove 342 are used to stack adjacent insulating pads 34. The round end caps 4 have different depths. In order to accommodate round end caps 4 of different depths, the total height of the insulating pads 34 can be freely combined to adjust the axial distance between the rotating component 3 and the inclined tube busbar.

[0053] Preferably, the insulating pad 33 has a water passage hole 332. The water passage hole 332 is an axial through hole in the insulating pad 33, which facilitates the outflow of water from the busbar. A groove is formed on the outer surface of the insulating pad 34. The groove facilitates the removal of the insulating pad 34 from the insulating pad 33. In addition, the groove, the annular insulating pad 33, and the water passage hole 332 all have ventilation and heat dissipation functions, while also taking into account aesthetics and weight reduction.

[0054] Preferably, the rotating component 3 further includes a locking element, and the fixed disk 31 and the movable disk 32 are coaxially rotatably connected. The locking element is used to fix the rotational position of the disk 31 and the movable disk 32.

[0055] Specifically, the fixed disk 31 is fan-shaped, with a fixed rod 312 perpendicular to the disk surface on its radially outer side. The movable disk 32 is also fan-shaped, with an arc-shaped movable hole 313 on its radially outer corresponding position. A locking device locks the relative positions of the fixed rod 312 and the movable hole 313. The locking device preferably consists of a bolt and a nut. The fixed rod 312 is configured as a bolt structure, with the bolt passing through the movable hole 313 and the nut tightened on top. The different positions of the fixed rod 312 within the movable hole 313 allow the movable disk 32 to rotate relative to the fixed disk 31.

[0056] The rotating component 3 also includes a rotating shaft 35 passing through the fixed disk 31 and the movable disk 32, with the fixed disk 31 and the movable disk 32 respectively rotatably connected to the rotating shaft 35. The rotating shaft 35 is located at the center of the two disks.

[0057] Preferably, the fixed disk 31 and the movable disk 32 are in contact via a pair of meshing gear surfaces. A ring of gear surfaces is provided on the disk surfaces and radially outwards of the movable hole of each disk. In this way, the fixed disk 31 and the movable disk 32 mesh through the gear surfaces, increasing friction and improving positioning accuracy during rotation. The gear surfaces allow for multi-angle adjustment based on the inclination angle of the tube generatrix. After adjustment, the fixed disk 31 and the movable disk 32 are secured using bolts or other fasteners.

[0058] Preferably, one end of the rotating shaft 35 is provided with a nut, and the other end of the rotating shaft 35 is threaded with a nut, so that the fixed plate 31 and the movable plate 32 can be clamped on the rotating shaft 35. The rotating shaft 35 adds a locking function to the fixed plate 31 and the movable plate 32, making their positioning more accurate. In this article, sleeves are added when tightening the bolts. The sleeves are made of nylon, which can play a role in shock absorption and noise reduction.

[0059] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A connecting fitting for an inclined busbar, characterized in that, It includes a base plate (1), a busbar clamp (2), and a rotating component (3) that can approach or move away from the busbar. The rotating component (3) includes a fixed disk (31) connected to the base plate (1), a movable disk (32) with one end rotatable from the fixed disk (31), and the round end cap (4) of the busbar is fitted onto the other end of the movable disk (32); One end of the busbar clamp (2) holds the busbar tightly, and the other end of the busbar clamp (2) is rod-shaped and hinged to the base plate (1). The busbar clamp (2) hinges the upwardly inclined busbar to the base plate (1). Adjust the position of the fixed plate (31) on the base plate (1) so that the other end of the movable plate (32) supports the round end cap (4) to keep the hinge position of the busbar and the base plate (1) unchanged; The other end of the movable disk (32) includes an insulating pad (33), and the rotating component (3) also includes an annular insulating pad (34) placed between the insulating pad (33) and the round end cap (4). The insulating pad (33) has a circular groove (331) for accommodating the insulating pad (34), and the round end cap (4) is fitted over the outside of the insulating pad (34). The rotating component (3) includes a plurality of insulating pads (34), each insulating pad (34) has a positioning protrusion (341) on its top surface and a positioning groove (342) on its bottom surface. The positioning protrusion (341) and the positioning groove (342) are used to stack adjacent insulating pads (34).

2. The connecting fitting for an inclined busbar according to claim 1, characterized in that, The insulating pad (33) has a water passage hole (332).

3. The connecting fitting for an inclined busbar according to claim 1, characterized in that, The bottom of the fixed plate (31) is provided with a fixed plate (311), and the fixed plate (311) has a strip hole. The different positions of the strip hole are fixed to the base plate (1) by the connector to make the fixed plate (31) move closer to or further away from the busbar.

4. The connecting fitting for an inclined busbar according to claim 1, characterized in that, The rotating component (3) also includes a locking element. The fixed disk (31) and the movable disk (32) are coaxially rotatably connected. The locking element is used to control the rotational position of the fixed disk (31) and the movable disk (32).

5. A connecting fitting for an inclined busbar according to claim 4, characterized in that, A fixing rod (312) is fixed on the radial outer side of the fixed plate (31), and an arc-shaped movable hole (313) is opened at the corresponding position of the movable plate (32). The fixing rod (312) passes through the movable hole (313), and the locking fastener locks the relative position of the fixing rod (312) and the movable hole (313). The rotating component (3) also includes a rotating shaft (35) passing through the fixed disk (31) and the movable disk (32), and the fixed disk (31) and the movable disk (32) are rotatably connected to the rotating shaft (35).

6. A connecting fitting for an inclined busbar according to claim 5, characterized in that, The fixed disk (31) and the movable disk (32) are in contact via a pair of meshing gear surfaces.

7. A connecting fitting for an inclined busbar according to claim 5, characterized in that, The locking component includes a nut, and the end of the fixing rod (312) is threadedly connected to the nut.

8. A connecting fitting for an inclined busbar according to claim 5, characterized in that, One end of the rotating shaft (35) is provided with a nut, and the other end of the rotating shaft (35) is threaded with a nut. The fixed disk (31) and the movable disk (32) can be clamped on the rotating shaft (35).

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