Special tool for bending copper sheet of tubular multi-pole slide wire

Abstract

The utility model relates to the field of slide contact line copper sheet bending, especially pipe type multi -pole's slide contact line copper sheet bending special frock. The frock contains external part and built -in spare, external part contains external part body (31), the external part body (31) is a U type's groove, and the two walls of U type's groove are arranged with external part limiting slot (32), external part can be covered on the outer wall of pipe piece (1), built -in spare contains built -in part (41), and built -in part (41) can be inserted into the inside of pipe piece (1), and built -in part (41) also has the parallel arrangement of external sheet part (42) through the connecting neck (44) connection, and external sheet part (42) protrudes and has convex positioning part (43), limiting slot (32) and convex positioning part (43) can be matched with opposite orientation, and external part and built -in spare cooperate in the end of pipe piece (1), and the copper sheet (2) in pipe piece (1) can be pressed and fixed and is bent towards the outer wall.

Description

Technical Field

[0001] This utility model relates to the field of bending copper sheets of sliding contact lines, and in particular to a special tooling for bending copper sheets of tubular multi-pole sliding contact lines. Background Technology

[0002] The copper sheets in tubular multi-stage conductor rails have the following main defects in existing bending technologies: First, due to the inherent material properties and smooth surface of copper sheets, they are prone to slippage or displacement during bending, leading to inaccurate bending positions and affecting assembly precision and electrical connection reliability. Second, during bending, the bending stress of the copper strip can cause cracking damage to the sidewalls of the copper strip groove inside the tube. Furthermore, existing bending processes often rely on specialized equipment or complex tooling, resulting in cumbersome procedures, high skill requirements for operators, low bending efficiency, and difficulty in flexible on-site adjustments.

[0003] In addition, the traditional bent tubular multi-stage sliding contact line structure is usually in a fixed bent shape, which occupies a lot of space during transportation. This not only increases packaging and logistics costs, but also makes it easy for the irregular shape to collide and deform during handling, affecting the integrity of the product.

[0004] Therefore, there is an urgent need for a new type of conductor rail bending component or solution that allows customers to perform bending operations independently and conveniently after receiving the goods, thereby reducing transportation difficulties and costs, and improving installation adaptability and usage efficiency.

[0005] On November 12, 2025, a search was conducted in the China Patent Publication Database using "sliding contact line and copper sheet and bending and built-in and external" as the abstract keywords, with the option to allow synonym expansion, but no relevant literature was found.

[0006] On November 12, 2025, an abstract search was conducted on CNKI (China National Knowledge Infrastructure) using the keywords "sliding contact line and copper sheet and bending and built-in and external", but no relevant literature was found.

[0007] On November 12, 2025, a search was conducted on the website of the United States Patent and Trademark Office for the term "Trolley wire with copper sheet with bending with built in with external", but no relevant literature was found; the search URL is https: / / ppubs.uspto.gov / pubwebapp / .

[0008] On November 12, 2025, a search was conducted on WIPO's website https: / / patentscope2.wipo.int / for the term "Trolley wire and copper sheet and bending and builtin and external", but no relevant literature was found.

[0009] On November 12, 2025, a search was conducted on the website of the Japan Patent Office (https: / / www.j-platpat.inpit.go.jp / ) for the term "Trolley wire and copper sheet and bending and builtin and external", but no relevant literature was found. Utility Model Content

[0010] The purpose of this utility model is to provide a special tooling for bending copper sheets of tubular multi-pole sliding contact lines with better performance. The specific purpose is explained in the specific implementation section for several substantial technical effects.

[0011] To achieve the above objectives, the present invention adopts the following technical solution: A special tooling for bending copper sheets of tubular multi-pole sliding contact lines, characterized in that: The tooling includes external and internal components; The external component includes an external component body 31, which is a U-shaped groove, and external component limiting grooves 32 are arranged on the two walls of the U-shaped groove. The external component can be fitted onto the outer wall of pipe component 1; The built-in component includes a built-in portion 41, which can be inserted into the interior of the pipe component 1. The built-in portion 41 is also connected to a parallel outer portion 42 via a connecting neck 44. The outer portion 42 extends out with a protruding positioning portion 43. The limiting groove 32 and the raised positioning part 43 can be matched and positioned relative to each other; The external and internal components are fitted at the end of the pipe component 1, and the copper sheet 2 in the pipe component 1 can be pressed and bent toward the outer wall.

[0012] A further technical solution of this utility model is that when the built-in part 41 is located in the pipe component 1, it can press the copper strip.

[0013] A further technical solution of this utility model is that the copper sheet 2 comprises multiple pieces.

[0014] A further technical solution of this utility model is that the built-in part 41 fits the protrusions and grooves on the inner wall of the pipe component 1.

[0015] A further technical solution of this utility model is that a handle is connected to the built-in component.

[0016] A further technical solution of this utility model is that bolt mounting holes are arranged at the end of the copper sheet 2.

[0017] A further technical solution of this utility model is that the side surfaces of the external component and the internal component are flush with the end of the pipe component 1.

[0018] A further technical solution of this utility model is that it also includes a bending member 5, which is connected to an independent handle. The bending member 5 has a bending piece 1 51 and a bending piece 2 52 extending outwards. The gap between the bending piece 1 51 and the bending piece 2 52 can accommodate a copper sheet. The independent handle allows for easy outward bending.

[0019] The present invention, employing the above technical solution, has the following advantages over the prior art: The present invention is a bending tool, primarily used for tubular multi-pole sliding contact lines. It requires bending a copper conductor, a long strip threaded inside the tube. Pre-bending in the factory makes stacking during transport inconvenient. Therefore, this tool is provided to the customer, allowing them to bend the copper ends on-site. It bends both copper strips at a 90° angle at this point. Holes are then drilled in these bends, and bolts are used for direct fixing. The present invention features a convenient bending structure. In use, the outer component is fitted onto the outer wall of the pipe fitting, the inner component is inserted into the inner wall of the pipe fitting to press the copper strip, and then bending is performed. Attached Figure Description

[0020] To further illustrate the present invention, the following description is provided in conjunction with the accompanying drawings: Figure 1 A schematic diagram of the structure to be bent; Figure 2 This is a structural diagram of an external component; Figure 3 This is a schematic diagram of the working status; Figure 4 This is a structural diagram of the internal components; Figure 5 This is a diagram showing the working state of the bending process; Figure 6 This is a structural diagram of the bent component; Among them: 1. Pipe fitting; 2. Copper sheet; 31. External component body; 32. External component limiting groove; 41. Internal part; 42. External piece part; 43. Protruding positioning part; 44. Connecting neck; 5. Bending part; 51. Bending piece one; 52. Bending piece two. Detailed Implementation

[0021] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention. In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in the present invention can be understood according to the specific circumstances.

[0022] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0023] This patent provides multiple parallel solutions; the different descriptions represent improved solutions or parallel solutions based on the basic solution. Each solution has its own unique characteristics. Furthermore, the technical features involved in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other. Fixing methods not described herein can be any type of fixing, such as threaded fixing, bolt fixing, or adhesive bonding.

[0024] Example 1: Referring to all the attached drawings; A special tooling for bending copper sheets of tubular multi-pole sliding contact lines, characterized in that, The tooling includes external and internal components; The external component includes an external component body 31, which is a U-shaped groove, and external component limiting grooves 32 are arranged on the two walls of the U-shaped groove. The external component can be fitted onto the outer wall of pipe component 1; The built-in component includes a built-in portion 41, which can be inserted into the interior of the pipe component 1. The built-in portion 41 is also connected to a parallel outer portion 42 via a connecting neck 44. The outer portion 42 extends out with a protruding positioning portion 43. The limiting groove 32 and the raised positioning part 43 can be matched and positioned relative to each other; The external and internal components are fitted at the end of the pipe fitting 1, allowing the copper sheet 2 in the pipe fitting 1 to be pressed and bent towards the outer wall. The essential technical effect and its implementation process, i.e., basic function and non-obvious aspects, are as follows: This utility model is a bending tool. It is mainly used in this type of tubular multi-pole sliding contact line. It needs to bend a copper conductor, a long strip inserted into the pipe. If we pre-bend it in the factory, it would be inconvenient to stack it during transportation. Therefore, this tool is provided to the customer, allowing them to bend the copper end on-site. A 90° bend is made at this position for the two copper strips to be joined. Then, holes are drilled in this bend, and bolts are used for direct fixation. This utility model has a convenient bending structure. In use, the external component is fitted onto the outer wall of the pipe fitting, the internal component is inserted into the inner wall of the pipe fitting, pressing the copper sheet, and then bending is performed. In contrast to the shortcomings of existing technologies, such as "the bending stress of the copper strip during bending can cause cracking and damage to the sidewall of the copper strip groove inside the tube", this patent has an internal component that can protect the sidewall, achieve internal stress distribution, and prevent the sidewall from being damaged.

[0025] Example 2: As a further improvement, parallel, or optional independent solution, the built-in part 41 can press the copper strip into place when it is located in the pipe fitting 1. The substantial technical effect and its implementation process, i.e., the basic function and non-obviousness, are as follows: good fixing effect, which can prevent the copper strip from moving.

[0026] Example 3: As a further improvement, parallel, or optional independent solution, copper sheet 2 comprises multiple pieces. The substantial technical effect and its implementation process, i.e., the basic function and non-obviousness, are as follows: Therefore, four pieces can be bent simultaneously, and after being pressed and fixed, they can be bent one by one.

[0027] Example 4: As a further improvement, parallel, or optional independent solution, the built-in portion 41 fits the protrusions and grooves on the inner wall of the pipe fitting 1. The substantial technical effect and its implementation process, i.e., the basic function and non-obviousness, are as follows: better pressure settling effect.

[0028] Example 5: As a further improvement, parallel solution, or optional independent solution, the built-in component is connected to a handle. The substantial technical effect and its implementation process, i.e., the basic function and non-obviousness, are as follows: facilitating insertion into the pipe.

[0029] Example 6: As a further improvement, parallel solution, or optional independent solution, the end of the copper sheet 2 is provided with bolt mounting holes.

[0030] Example 7: As a further improvement, parallel, or optional independent solution, the side surfaces of the external and internal components are flush with the ends of the pipe component 1.

[0031] Example 8: As a further improvement, parallel, or optional independent solution, it also includes a bending member 5, which is connected to an independent handle. The bending member 5 has two extending bending pieces, a first bending piece 51 and a second bending piece 52, with a gap between them large enough to accommodate a copper sheet. The independent handle allows for easy outward bending. Referring to the last two figures, bending is convenient.

[0032] Innovatively, each of the above effects exists independently, yet a single structure can be used to combine the results.

[0033] It should be noted that the multiple modules in this patent are an integration of existing technology modules and do not involve any new modules. Even if some modules use programs, those programs are undoubtedly known programs.

[0034] It should be noted that the multiple solutions provided in this patent include their own basic solutions, which are independent of each other and do not restrict each other. However, they can also be combined with each other without conflict to achieve multiple effects.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims.

Claims

1. A special tooling for bending copper sheets of tubular multi-pole sliding contact lines, characterized in that, The tooling includes an external component and an internal component; the external component includes an external component body (31), which is a U-shaped groove, and external component limiting grooves (32) are arranged on the two walls of the U-shaped groove; the external component can be fitted onto the outer wall of the pipe component (1); the internal component includes an internal part (41), which can be inserted into the interior of the pipe component (1), and the internal part (41) is also connected to a parallel external piece part (42) through a connecting neck (44), and the external piece part (42) has a protruding positioning part (43) extending out; the limiting groove (32) and the protruding positioning part (43) can fit and be positioned relative to each other; the external component and the internal component are fitted at the end of the pipe component (1), and the copper sheet (2) in the pipe component (1) can be pressed and bent toward the outer wall.

2. The special tooling for bending copper sheets of tubular multi-pole sliding contact lines as described in claim 1, characterized in that, When the built-in part (41) is located in the pipe fitting (1), it can press the copper strip.

3. The special tooling for bending copper sheets of tubular multi-pole sliding contact lines as described in claim 1, characterized in that, Copper sheet (2) contains multiple pieces.

4. The special tooling for bending copper sheets of tubular multi-pole sliding contact lines as described in claim 1, characterized in that, The built-in part (41) fits the protrusions and grooves on the inner wall of the pipe fitting (1).

5. The special tooling for bending copper sheets of tubular multi-pole sliding contact lines as described in claim 1, characterized in that, The built-in component has a handle.

6. The special tooling for bending copper sheets of tubular multi-pole sliding contact lines as described in claim 1, characterized in that, The ends of the copper sheet (2) are provided with bolt mounting holes.

7. The special tooling for bending copper sheets of tubular multi-pole sliding contact lines as described in claim 1, characterized in that, The sides of the external and internal components are flush with the ends of the pipe fitting (1).

8. The special tooling for bending copper sheets of tubular multi-pole sliding contact lines as described in claim 1, characterized in that, It also includes a bending piece (5), which is connected to an independent handle. The bending piece (5) has a bending piece 1 (51) and a bending piece 2 (52) extending out. The gap between the bending piece 1 (51) and the bending piece 2 (52) can accommodate a copper sheet. The independent handle allows for easy outward bending.

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