Trolley pole easy for insulation construction

Abstract

The utility model discloses a trolley pole easy for insulation construction, relates to the field of trolley buses, and aims to solve the problem of complicated insulation construction caused by structural bending, reducing and electric contact protruding of a traditional trolley pole. The tubular bus comprises a tubular bus in a revolving body shape and an external insulating layer, an electric contact at one end of the tubular bus is hidden in an inner cavity, and a bent adapter is arranged at the other end of the tubular bus and is located at a position where the insulating layer does not need to be laid. The tubular busbar comprises a thick end and a thin end which are in uniform and smooth transition; the insulating layer can be a heat shrink tube, the glass fiber mesh sleeve is sleeved with the heat shrink tube, and a bonding layer can be arranged between the insulating layer and the tubular bus. According to the trolley pole, the outer contour of a tubular bus needing to be insulated is regular and free of protrusions and bends, rotating construction can be conducted by means of a tool, the laying efficiency and quality of an insulating layer are improved, labor intensity is reduced, and the trolley pole is suitable for a trolley bus current collection system.

Description

TECHNICAL FIELD

[0001] The utility model relates to the trolley bus field, specifically to a current collector pole, especially a current collector pole easy to insulate construction. BACKGROUND

[0002] The current collector pole used on the trolley bus bears the current collector head at the end, which needs to support the current collector head to rise and abut against the contact wire to realize the electrical connection during operation, and the length generally reaches 5 meters. The current collector pole needs sufficient strength to support the current collector head and needs to bear the conductive function. The current collector pole is the live part of the vehicle, and the outer surface must be provided with an insulating layer for safety protection to ensure safety. The current collector pole of the prior art is generally composed of an internal aluminum alloy tubular bus and an external insulating layer.

[0003] In the existing process, when the insulating layer of the current collector pole is made, due to the bending, variable-diameter and protruding electrical contacts on the structure of the current collector pole, when the insulating layer encounters these structures during construction, in order to ensure good insulating performance, special treatment must be performed on the positions of the bending, variable-diameter and protrusion to ensure that the insulating layer has good adhesion, which is time-consuming and labor-intensive. SUMMARY

[0004] The technical problem to be solved by the utility model is to provide a current collector pole which is improved in structure and easy to insulate.

[0005] The specific technical scheme for solving the above technical problem of the utility model is:

[0006] A current collector pole easy to insulate, comprising a tubular bus in the shape of a rotary body and an insulating layer provided outside the tubular bus; an electrical contact at one end of the tubular bus is embedded in the tubular bus, i.e. in the inner cavity of the tubular bus, and the outside of the tubular bus no longer has a protruding point, and the other end is fixedly connected to a curved adapter with a small size, so that it can be arranged at a position where the insulating layer is not required.

[0007] Compared with the prior art, the utility model has the following beneficial effects: by adjusting the position of the electrical contact and the size of the curved adapter, the outer contour of the part of the tubular bus where the insulating layer needs to be applied is regular, and there is no bending or protrusion, and the external insulating layer can be constructed by rotation with the aid of a tool; due to the absence of protrusions and the influence of the bending of the tubular bus, the insulating layer no longer needs to be treated specially for these special places, the laying efficiency and laying quality are greatly improved, the labor intensity is reduced, and the labor input is reduced.

[0008] Further, the insulating layer is made of high molecular material by heat shrinkage, i.e. is processed from a heat shrink tube.

[0009] For the pipe busbar with a length of 5 meters, if the slightly elastic tubular insulating tube is used to wrap the pipe busbar from head to tail, it is very difficult to wrap even without protrusion and bending. If the inelastic material such as glass fiber is used to wrap, it needs to wait for the gel to condense. The heat shrink tube is a mature material which shrinks when heated. The heat shrink tube is used as the insulating layer. The heat shrink tube with a larger diameter than the pipe busbar is easily wrapped on the pipe busbar. Then the heat shrink tube is shrunk by heating. The heat shrink tube is tightly wrapped on the pipe busbar, and the convenient construction of the insulating layer is realized.

[0010] Further, the insulating layer is a double-walled heat shrink tube wrapped outside the glass fiber mesh. In construction, the glass fiber mesh is pre-woven, and then the double-walled heat shrink tube is wrapped outside the glass fiber mesh. The heat shrink tube is heated to shrink the heat shrink tube and melt the inner wall of the heat shrink tube. The glass fiber mesh is tightly adhered to the pipe busbar by the melted adhesive layer. The melted adhesive layer can also penetrate the glass fiber mesh and adhere to the outer wall of the pipe busbar. This scheme is simple to construct, and the glass fiber mesh insulation and reinforcement effect is better, and the mechanical strength is stronger.

[0011] Further, the insulating layer made of a high polymer material is provided with an adhesive layer between the insulating layer and the pipe busbar.

[0012] The adhesive layer can further improve the firmness of the insulating layer. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a schematic view of the existing current collecting pole;

[0014] Figure 2 It is a front view schematic view of the existing current collecting pole;

[0015] Figure 3 It is a front view - partial cross-sectional schematic view of the current collecting pole of Example 1 which is easy to insulate;

[0016] Figure 4 It is a comparison schematic view of the existing current collecting pole and the current collecting pole which is easy to insulate;

[0017] Figure 5 It is a comparison schematic view of the position of the electrical contact of the existing current collecting pole and the current collecting pole which is easy to insulate;

[0018] Figure 6 It is a cross-sectional schematic view of the adapter;

[0019] In the drawings, the component names represented by each reference numeral are listed as follows:

[0020] 1, electrical contact; 2, bending; 3, variable diameter; 4, pipe busbar; 5, insulating layer; 6, adapter; 7, existing current collecting pole; 8, current collecting pole which is easy to insulate. DETAILED DESCRIPTION

[0021] The principles and features of the present application are described below in conjunction with the accompanying drawings, which are only used to explain the present application and not intended to limit the scope of the present application.

[0022] As shown in Figure 1 , Figure 2 , the existing current collecting pole has a protruding electrical contact 1 at one end, a large-sized bend 2, and a plurality of stepped variable diameters 3. The other end of the existing current collecting pole has an adapter 6, which is a rotary body.

[0023] Example 1

[0024] As shown in Figure 3 , Figure 6 , a current collecting pole easy to insulate is provided, which includes a rotary tubular busbar 4. The tubular busbar 4 is divided into a thick end and a thin end, which are uniformly and smoothly connected without stepped variable diameter nodes. An insulating layer 5 is uniformly provided on the outer part of the tubular busbar 4, which is made of glass fiber reinforced plastic. The thick end of the tubular busbar 4 is relatively thick and is used to be fixed on the pitch arm of a current collector. An electrical contact 1 is provided at the thick end and is arranged in the inner cavity of the tubular busbar 4, as shown in the right part of Figure 5 , so that the outer surface of the tubular busbar 4 is flush or slightly concave. Please refer to Figure 6 , the thin end of the tubular busbar 4 is provided with an adapter 6, which is provided with a bend 2. The adapter 6 is relatively small in size, and the outer part thereof can not be provided with an insulating layer 5.

[0025] The tubular busbar with a cylindrical and conical shape combined into a rotary body occupies most of the length of the current collecting pole, and the outer insulating layer thereof can be constructed by rotating with the aid of a tool. Due to the absence of protrusions and the influence of the bend of the tubular busbar, the laying efficiency and laying quality are greatly improved, the labor input is reduced, and the labor intensity is reduced. The uniform distribution of the bonding material is facilitated, and the product consistency is more easily ensured.

[0026] Figure 4 is a comparison diagram of the existing current collecting pole 7 and the current collecting pole 8 easy to insulate. It can be seen that the current collecting pole 8 easy to insulate has a flat and smooth shape, a simple structure, and an insulating layer 5 easy to mechanically construct.

[0027] Figure 5 is a comparison diagram of the electrical contact 1 of the existing current collecting pole 7 and the current collecting pole 8 easy to insulate. It is very obvious that the current collecting pole 8 easy to insulate has a shape easy to wind glass fiber cloth, lay glass fiber mesh sleeve or heat shrinkable tubular polymer material at the position of the electrical contact 1, without the need to separately process the protrusion of the electrical contact 1, thereby saving at least one step of the process.

[0028] Figure 6 A cross-sectional view of the adapter 6 provided at the thin end of the current collecting pole 8 for easy insulation construction; one end of the adapter 6 has a positioning shaft, which is inserted into the inner hole of the thin end of the tubular busbar 4 for positioning, and is mechanically connected through press fitting, welding, threading, etc.; the other end of the adapter 6 is an adapter end connected with the current collecting head, which is connected through mechanical connection such as threading, and preferably a plug-in structure, because it can more accurately ensure the accuracy of the orientation.

[0029] The above description is only the preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A power pole which is easy to insulate, comprising a tubular busbar in the shape of a solid of revolution and an insulating layer provided on the outside of the tubular busbar, characterized in that One end of the tubular bus is provided with an electrical contact point, and the other end is provided with a curved adapter, the electrical contact point is located in the inner cavity of the tubular bus, and the curved adapter is located at a position where an insulation layer is not needed.

2. The utility pole according to claim 1, wherein The insulation layer is a heat-shrinkable tube.

3. The easily insulated construction power pole according to claim 1, wherein The insulation layer is a heat-shrinkable tube sleeved outside a glass fiber mesh cover.

4. The easily insulated construction of the pole for power transmission according to any one of claims 1 to 3, characterized in that, A bonding layer is arranged between the insulation layer and the tubular bus.

5. The easily insulated construction power pole according to claim 4, wherein The tubular bus comprises a thick end and a thin end, and the thick end and the thin end are uniformly and smoothly transitioned.

6. The easily insulated construction power pole according to claim 4, wherein The curved adapter is fixed on the tubular bus through a plug-in structure.

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