Two-piece bus duct assembly type horizontal elbow

Abstract

The utility model discloses a two-piece bus duct assembly type horizontal elbow which comprises two shell assemblies and an elbow assembly, and the two ends of the elbow assembly are connected with the shell assemblies respectively. The shell assembly comprises a cover plate and a side plate mounted on the cover plate, and the cover plate and the side plate are enclosed to form a first cavity; the elbow assembly comprises two elbow connecting pieces which are oppositely arranged, a first baffle and a second baffle, the first baffle and the second baffle are arranged in a spaced mode, and the first end of the first baffle and the first end of the second baffle are both fixed to one elbow connecting piece. The second end of the first baffle and the second end of the second baffle are both fixed to the other elbow connecting piece, and a second cavity is defined by the two elbow connecting pieces, the first baffle and the second baffle. Assembly errors caused by welding can be avoided, assembly is easy, and the appearance is attractive.

Description

TECHNICAL FIELD

[0001] The utility model belongs to bus duct device technical field, concretely relates to a two-piece formula bus duct assembly type horizontal bend. BACKGROUND

[0002] Bus duct as the transmission facility of high current power supply line, is widely used in civil building, factory and other electrical equipment, power system.In power supply line, in order to realize the current transmission of copper bar in horizontal or vertical direction, need to be connected through bend and be assembled in horizontal or vertical direction to realize complete line communication.Bend is to guarantee whether the bus duct construction connection can realize the expected trend of bus duct.

[0003] The existing bend is generally connected by welding, and the welding connection mode is prone to assembly error and appearance defect, especially the two-piece structure bend, which is more difficult to weld, and the assembly error is more difficult to eliminate, and the defective rate of the finished bend is high. SUMMARY

[0004] The utility model discloses a two-piece formula bus duct assembly type horizontal bend, solves the problem of assembly error and appearance defect of horizontal bend.

[0005] Its technical scheme is as follows:

[0006] The two-piece formula bus duct assembly type horizontal bend of the utility model includes:

[0007] Two shell assemblies and a bend assembly, two ends of the bend assembly are connected with a shell assembly respectively;

[0008] The shell assembly includes a cover plate and a side plate installed on the cover plate, and the cover plate and the side plate form a first cavity;

[0009] The bend assembly includes two bend connectors and first and second baffles arranged oppositely, the first and second baffles are arranged at intervals, the first end of the first baffle and the first end of the second baffle are fixed on one of the bend connectors, the second end of the first baffle and the second end of the second baffle are fixed on the other bend connector, and the two bend connectors, the first baffle and the second baffle form a second cavity.

[0010] In one of the embodiments, the bend connector is provided with a through opening, the end of the first baffle and the end of the second baffle are arranged in the bend connector through the through opening, the bend assembly further includes two sealing plates, each sealing plate is arranged on one bend connector, and the sealing plate seals the gap between the end of the first baffle and the end of the second baffle.

[0011] In one of the embodiments, the first baffle and the second baffle have the same extension length in the elbow connector, and the extension length is at least 20mm.

[0012] In one of the embodiments, the first baffle and the second baffle have at least partially L-shaped cross section, the elbow connector is provided with a first vertical plate and a second vertical plate, the first vertical plate intersects with the first side of the end of the first baffle and the first side of the end of the second baffle, the second vertical plate intersects with the second side of the end of the first baffle and the second side of the end of the second baffle, and the cover plate is arranged on the elbow connector around the first vertical plate, the second vertical plate, the end of the first baffle and the end of the second baffle.

[0013] In one of the embodiments, the first side and the second side of the first baffle and the first side and the second side of the second baffle are provided with mounting plates, the end of the first side of the first baffle and the end of the first side of the second baffle are fixed on the first vertical plate through the mounting plates, and the end of the second side of the first baffle and the end of the second side of the second baffle are fixed on the second vertical plate.

[0014] In one of the embodiments, the mounting plates are provided with waterproof adhesive strips, the waterproof adhesive strips extend from one end of the mounting plates to the other end, and the waterproof adhesive strips are used to seal the joint surfaces of the first side of the first baffle, the first side of the second baffle and the first vertical plate, and the joint surfaces of the second side of the first baffle, the second side of the second baffle and the second vertical plate.

[0015] In one of the embodiments, the second baffle is arranged on the inner side of the horizontal elbow, the second baffle is bent into a first flat plate, a second flat plate and a third flat plate, the second flat plate is located between the first flat plate and the third flat plate to form a corner between the first flat plate and the third flat plate, the first flat plate and the third flat plate are used to fit on the straight line segment of the copper bar, and the second flat plate is used to form a gap for the corner of the copper bar.

[0016] In one of the embodiments, the cover plate includes opposite first and second plate bodies, a third plate body is connected between the first and second plate bodies, the side plate has a door frame shape and includes a bottom plate and two side walls, the two side walls are respectively mounted on the first or second plate body, and a gap is arranged between the bottom plate and the third plate body, and the gap forms the first cavity.

[0017] In one of the embodiments, the cover plate is provided with fixing holes and downspout holes at both ends, the fixing holes are used to fix the cover plate on the elbow assembly, and the side walls of the side plate are recessed inward at the front end and the rear end to form notches for avoiding the fixing holes and the downspout holes.

[0018] In one of the embodiments, the third plate body is provided with outward protrusions at both sides to form ribs, and the bottom walls of the first end and the second end of the elbow connector are recessed inward at both sides to form grooves, and the ribs are matched with the grooves.

[0019] The technical scheme provided by the utility model has the following advantages and effects: the second cavity is formed by the two elbow connectors of the elbow assembly and the first baffle and the second baffle, the corner section of the copper bar is assembled, the straight section of the copper bar is assembled by the two-piece shell assembly, and the assembly of the copper bar is realized by the two shell assemblies and the elbow assembly. The horizontal elbow is assembled and does not need to be welded, the assembly error caused by welding is avoided, and the appearance is beautiful. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a schematic view of the horizontally stacked copper bars;

[0021] Figure 2 It is a perspective view of the horizontal elbow of the embodiment;

[0022] Figure 3 It is a perspective view of the shell assembly of the embodiment;

[0023] Figure 4 It is a perspective view of the cover plate of the embodiment;

[0024] Figure 5 It is a perspective view of the side plate of the embodiment;

[0025] Figure 6 It is a perspective view of the elbow assembly of the embodiment;

[0026] Figure 7 It is a perspective view of the horizontal elbow of the embodiment after removing one elbow connector;

[0027] Figure 8 It is a perspective view of the elbow connector of the embodiment;

[0028] Figure 9 It is a perspective view of the first baffle of the embodiment;

[0029] Figure 10 It is a perspective view of the second baffle of the embodiment;

[0030] Figure 11 It is a top view of the assembled elbow assembly;

[0031] Figure 12 This is a perspective view of the side panel of another embodiment.

[0032] Explanation of reference numerals in the attached figures:

[0033] 10. Copper busbar, 12. Straight line segment, 13. Corner segment,

[0034] 20. Outer shell assembly; 21. Cover plate; 211. First plate; 212. Second plate; 213. Third plate; 214. Fixing hole; 215. Rib; 216. Drain hole.

[0035] 22. Side panel, 221. Bottom plate, 222. Side wall, 223. Notch

[0036] 23. First cavity,

[0037] 30. Elbow assembly; 31. Elbow connector; 311. Through port; 312. First upright plate; 313. Second upright plate; 314. Fixing post; 315. Groove; 32. First baffle; 33. Second baffle; 331. First flat plate; 332. Second flat plate; 333. Third flat plate; 34. Second cavity; 35. Sealing plate; 36. Mounting plate; 361. Step; 37. Waterproof sealing strip; 38. Clearance gap. Detailed Implementation

[0038] To facilitate understanding of this utility model, the specific embodiments of this utility model will be described in more detail below with reference to the accompanying drawings.

[0039] Unless otherwise specified or defined, the terms "first," "second," etc., used in this document are for distinguishing names only and do not represent a specific number or order.

[0040] Unless otherwise stated or defined, the term “and / or” as used herein includes any and all combinations of one or more of the associated listed items.

[0041] It should be noted that in this article, "fixed to" or "connected to" can mean directly fixed to or connected to a component, or indirectly fixed to or connected to a component.

[0042] Horizontal elbows are used for assembling such as Figure 1 The horizontally stacked copper busbars 10 shown are each wrapped with an insulating film. To ensure that the copper busbars 10 meet electrical requirements and insulation performance, insulating tape needs to be wrapped around the corners of the copper busbars 10. However, when manually wrapping the insulating tape around the copper busbars 10, it is difficult to control the thickness at the corners. Currently, horizontal elbows manufactured using welding processes have dimensions determined during welding. Often, the thickness of the wrapped copper busbars 10 exceeds expectations, leading to assembly errors and making it difficult to assemble these copper busbars 10.

[0043] In order to make the horizontal bend to assemble the copper bar more simply and conveniently, the horizontal bend of the utility model does not need to be welded, but is assembled by assembling two shell assemblies and a bend assembly, that is, an assembled structure is adopted, which can eliminate the assembly error caused by welding, is not only convenient to use, but also has an attractive appearance. In addition, since the two-piece (that is, the copper bar is wrapped by two metal plates) horizontal bend is more difficult to weld than the four-piece (that is, the copper bar is wrapped by four metal plates) horizontal bend, and is more prone to assembly error, therefore, when the horizontal bend is formed by using the welding process, the four-piece type is generally adopted. Therefore, the two-piece bus duct assembled horizontal bend of the utility model is not only convenient to assemble, but also simple in structure and convenient to manufacture.

[0044] Figure 2 It is a perspective view of the two-piece bus duct assembled horizontal bend of the embodiment. The horizontal bend mainly comprises two shell assemblies 20 and a bend assembly 30, the two ends of the bend assembly 30 are riveted with one shell assembly 20 respectively, and an L-shaped horizontal bend is formed. The shell assembly 20 is used to be installed on the straight section 12 of the copper bar 10, and the bend assembly 30 is used to be installed on the corner section 13 of the copper bar 10.

[0045] As shown in Figure 3 , unlike the usual four-piece structure, the shell assembly 20 is a two-piece structure, which comprises a cover plate 21 and a side plate 22. As shown in Figure 4 , the cover plate 21 is an H-shaped structure, which comprises a first plate body 211, a second plate body 212 and a third plate body 213 which are integrally formed, the first plate body 211 and the second plate body 212 are oppositely arranged, and the third plate body 213 is between the first plate body 211 and the second plate body 212. As shown in Figure 3 , the side plate 22 is installed on the cover plate 21, and the specific installation mode is not limited, which can be fixed on the cover plate 21 by rivets and other fasteners, or can be tightly fitted into the cover plate 21. As shown in Figure 5 , the side plate 22 is in the shape of a door frame, which comprises a bottom plate 221 and two side walls 222 which are integrally formed, and the two side walls 222 are fixed on the first plate body 211 or the second plate body 212 respectively. As shown in Figure 3 , after the side plate 22 is installed on the cover plate 21, there is a gap between the bottom plate 221 of the side plate 22 and the third plate body 213 of the cover plate 21, which can be used to assemble the straight section 12 of the copper bar 10, that is, the cover plate 21 and the side plate 22 enclose a first cavity 23 for accommodating the straight section 12 of the copper bar 10. The above-mentioned two-piece structure is simple in structure, convenient to manufacture, and simple and convenient to assemble the copper bar.

[0046] As shown in Figure 6As shown, the elbow assembly 30 includes two elbow connectors 31 arranged oppositely, and a first baffle 32 and a second baffle 33 arranged between the two elbow connectors 31, the second baffle 33 being located at the inner side of the elbow assembly 30 relative to the first baffle 32, and the first baffle 32 and the second baffle 33 being spaced apart. One elbow connector 31 is fixedly connected with the first plate body 211 of the cover plate 21, and the other elbow connector 31 is fixedly connected with the second plate body 212 of the cover plate 21, so as to realize the fixed connection of the cover plate 21 and the elbow connector 31. The first end of the first baffle 32 and the first end of the second baffle 33 are mounted on one elbow connector 31, and the second end of the first baffle 32 and the second end of the second baffle 33 are mounted on the other elbow connector 31, so as to realize the fixation of the first baffle 32 and the second baffle 33. Through the above two elbow connectors 31 and the first baffle 32 and the second baffle 33, a second cavity 34 is enclosed, which can accommodate the corner section 13 of the copper bar 10. The cross section of the first baffle 32 and the second baffle 33 of the embodiment is at least partially L-shaped, so that the first baffle 32 and the second baffle 33 can be fitted with the corner of the copper bar 10. It should be noted that the corner angle of the first baffle 32 and the second baffle 33 is not limited to this angle, for example, when the corner of the copper bar 10 is an obtuse angle, only the degree of the corner angle of the first baffle 32 and the second baffle 33 needs to be changed accordingly.

[0047] In some embodiments, as shown in Figure 7 and Figure 8 In order to make the thickness of the copper bar 10 more standard during assembly and eliminate assembly errors, the corner of the copper bar 10 is not wrapped with adhesive tape, but a thin film spacer (not shown in the figure) is placed between every two copper bars 10. In order to meet the electrical requirements, the size of the thin film spacer in the Z direction is greater than the size of the copper bar in the Z direction, therefore, the embodiment is provided with through openings 311 on the elbow connector 31, through which the end of the first baffle 32 and the end of the second baffle 33 are arranged in the elbow connector 31, that is, the size of the first baffle 32 and the second baffle 33 in the Z direction is greater than the size of the copper bar 10 in the Z direction. The extension length of the end of the first baffle 32 and the end of the second baffle 33 in the elbow connector 31 is the same, in order to meet the electrical requirements of different levels, the extension length is preferably at least 20 mm. In order to seal the gap between the end of the first baffle 32 and the end of the second baffle 33, two sealing plates 35 are also provided, one sealing plate 35 is used to cover one elbow connector 31. With the above structure, the assembly precision of the horizontal elbow is higher.

[0048] Specifically, the elbow connector 31 is provided with a first vertical plate 312 and a second vertical plate 313, the first vertical plate 312 and the second vertical plate 313 are arranged orthogonally, the first vertical plate 312 intersects the first side of the end of the first baffle plate 32 and the first side of the end of the second baffle plate 33, the second vertical plate 313 intersects the second side of the end of the first baffle plate 32 and the second side of the end of the second baffle plate 33, through the above structure, the gap between the extension section of the first baffle plate 32 and the second baffle plate 33 in the elbow connector 31 can be sealed in the X and Y directions. Then, the sealing plate 35 is arranged on the elbow connector 31 around the first vertical plate 312, the second vertical plate 313, the end of the first baffle plate 32 and the end of the second baffle plate 33, and is sealed in the Z direction, so as to realize the sealing of the second cavity 34 formed by the first baffle plate 32 and the second baffle plate 33.

[0049] As shown in Figure 9 and Figure 10 , in this embodiment, the first side and the second side of the first baffle plate 32, and the first side and the second side of the second baffle plate 33 are all provided with mounting plates 36, the mounting plates 36 extend along the Z direction. By means of these mounting plates 36, the end of the first side of the first baffle plate 32 and the end of the first side of the second baffle plate 33 can be fixed on the first vertical plate 312, and the end of the second side of the first baffle plate 32 and the end of the second side of the second baffle plate 33 can be fixed on the second vertical plate 313. Obviously, other ways can also be used to fix the first baffle plate 32 and the second baffle plate 33 on the first vertical plate 312 and the second vertical plate 313, for example, a clamping groove cooperating with the first baffle plate 32 and the second baffle plate 33 can be arranged on the first vertical plate 312 and the second vertical plate 313.

[0050] As shown in Figure 7 , on the basis of arranging the above-mentioned mounting plates 36, in order to enhance the waterproof effect of the horizontal elbow, a waterproof rubber strip 37 is arranged on the mounting plate 36, the waterproof rubber strip 37 extends in the Z direction from one end of the mounting plate 36 to the other end. Through the above-mentioned waterproof rubber strip 37, the joint surface between the first side of the first baffle plate 32, the first side of the second baffle plate 33 and the first vertical plate 312, and the joint surface between the first side of the first baffle plate 32, the first side of the second baffle plate 33 and the straight line segment 12 of the copper bar 10 can be sealed; and the joint surface between the second side of the first baffle plate 32, the second side of the second baffle plate 33 and the second vertical plate 313, and the joint surface between the second side of the first baffle plate 32, the second side of the second baffle plate 33 and the straight line segment 12 of the copper bar 10 can be sealed. Specifically, referring to Figure 9 and Figure 10 , a step 361 is arranged on the mounting plate 36, and the waterproof rubber strip 37 is bonded on the step 361.

[0051] As shown in Figure 10As shown, in order to prevent the corner of the second baffle 33 from piercing the insulating film at the corner of the copper bar 10, the second baffle 33 is bent into a first flat plate 331, a second flat plate 332 and a third flat plate 333, the second flat plate 332 is located between the first flat plate 331 and the third flat plate 333, forming the corner between the first flat plate 331 and the third flat plate 333. As shown in Figure 11 As shown, after assembly, the first flat plate 331 and the third flat plate 333 are attached to the straight section 12 of the copper bar 10, and the second flat plate 332 can form a gap 38 at the corner of the copper bar 10, that is, it does not abut the inner corner of the copper bar 10, thereby ensuring the insulation performance.

[0052] Referring to Figure 4 and Figure 8 In this embodiment, both ends of the cover plate 21 are provided with fixing holes 214, and the elbow connector 31 is correspondingly provided with fixing columns 314. By means of these fixing holes 214 and fixing columns 314, the cover plate 21 and the elbow connector 31 can be fixed by fasteners, realizing the assembly of the cover plate 21 and the elbow connector 31.

[0053] In order to make the elbow connector 31 and the cover plate 21 more firmly assembled, the first plate body 211 and the second plate body 212 of the cover plate 21 are provided with outward protrusions, which form ribs 215, and the two sides of the bottom wall of the first end and the second end of the elbow connector 31 are inwardly recessed to form grooves 315. The ribs 215 cooperate with the grooves 315 to make the assembly of the cover plate 21 and the elbow connector 31 convenient and firm.

[0054] Referring to Figure 4 Both ends of the cover plate 21 are not only provided with fixing holes 214, but also with water falling holes 216 for drainage. In order to avoid the fixing holes 214 and the water falling holes 216 being blocked by the side plate 22, causing assembly inconvenience and affecting the drainage performance, as shown in Figure 12 As shown, the front end and the rear end of the side wall 222 of the side plate 22 are inwardly recessed to form notches 223 for avoiding the fixing holes 214 and the water falling holes 216, so that there is no interference with the fixing holes 214 and the water falling holes 216 during assembly.

[0055] In summary, the horizontal elbow of the present embodiment forms a second cavity through two elbow connectors of the elbow assembly and a first baffle and a second baffle, assembles the corner of the copper bar, and assembles the straight section of the copper bar through a two-piece shell assembly, so that the two shell assemblies and the elbow assembly together realize the assembly of the copper bar. The horizontal elbow is assembled, does not need to be welded, does not have assembly errors caused by welding, and has an attractive appearance.

[0056] The above embodiments are not exhaustive enumeration based on the utility model, in addition, there can be a plurality of other embodiments not listed. Any replacement and improvement made without violating the concept of the utility model is within the scope of protection of the utility model.

Claims

1. A two-piece busbar trunking assembly type horizontal elbow, characterized in that, include: Two housing assemblies and one elbow assembly, each end of the elbow assembly being connected to one housing assembly; The housing assembly includes a cover plate and a side plate mounted on the cover plate, the cover plate and the side plate enclosing a first cavity; The elbow assembly includes two elbow connectors arranged opposite each other, a first baffle and a second baffle. The first baffle and the second baffle are spaced apart. The first end of the first baffle and the first end of the second baffle are both fixed to one of the elbow connectors, and the second end of the first baffle and the second end of the second baffle are both fixed to the other elbow connector. The two elbow connectors, the first baffle and the second baffle enclose and form a second cavity.

2. The two-piece busbar trunking assembly type horizontal elbow as described in claim 1, characterized in that, The elbow connector is provided with a through-hole through which the ends of the first baffle and the second baffle pass through the elbow connector. The elbow assembly also includes two sealing plates, each of which covers one elbow connector and seals the gap between the ends of the first baffle and the second baffle.

3. The two-piece busbar trunking assembly type horizontal elbow as described in claim 2, characterized in that, The ends of the first baffle and the second baffle have the same extension length within the elbow connector, and the extension length is at least 20 mm.

4. The two-piece busbar trunking assembly type horizontal elbow as described in claim 2, characterized in that, The cross-sections of the first baffle and the second baffle are at least partially L-shaped. The elbow connector is provided with a first upright plate and a second upright plate. The first upright plate intersects with the first side of the end of the first baffle and the first side of the end of the second baffle. The second upright plate intersects with the second side of the end of the first baffle and the second side of the end of the second baffle. The sealing plate covers the elbow connector around the first upright plate, the second upright plate, the end of the first baffle, and the end of the second baffle.

5. The two-piece busbar trunking assembly type horizontal elbow as described in claim 4, characterized in that, Mounting plates are provided on the first and second sides of the first baffle and the second baffle. The first end of the first baffle and the first end of the second baffle are fixed to the first upright plate through the mounting plates, and the second end of the first baffle and the second end of the second baffle are fixed to the second upright plate.

6. The two-piece busbar trunking assembly type horizontal elbow as described in claim 5, characterized in that, The mounting plate is provided with a waterproof adhesive strip, which extends from one end of the mounting plate to the other end. The waterproof adhesive strip is used to seal the joint surfaces of the first side of the first baffle, the first side of the second baffle and the first upright plate and the copper busbar, as well as the joint surfaces of the second side of the first baffle, the second side of the second baffle and the second upright plate and the copper busbar.

7. The two-piece busbar trunking assembly type horizontal elbow as described in any one of claims 1-6, characterized in that, The second baffle is located on the inside of the horizontal bend. The second baffle is bent into a first plate, a second plate, and a third plate. The second plate is located between the first plate and the third plate, forming a corner between the first plate and the third plate. The first plate and the third plate are used to fit on the straight section of the copper busbar. The second plate is used to form a clearance gap at the corner of the copper busbar.

8. The two-piece busbar duct assembly type horizontal elbow as described in any one of claims 1-6, characterized in that, The cover plate includes a first plate and a second plate opposite to each other, and a third plate is connected between the first plate and the second plate. The side plate is in the shape of a door frame and includes a bottom plate and two side walls. The two side walls are respectively installed on the first plate or the second plate, and there is a gap between the bottom plate and the third plate, which forms the first cavity.

9. The two-piece busbar trunking assembly type horizontal elbow as described in claim 8, characterized in that, Both ends of the cover plate are provided with fixing holes and drain holes. The cover plate is fixed to the elbow assembly through the fixing holes. The front and rear ends of the side wall of the side plate are recessed inward to form notches to avoid the fixing holes and drain holes.

10. The two-piece busbar trunking assembly type horizontal elbow as described in claim 8, characterized in that, The third plate has outward protrusions on both sides to form ribs, and the bottom walls of the first and second ends of the elbow connector are recessed inward to form grooves, with the ribs cooperating with the grooves.

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