Anti-freezing rain pantograph lower arm gas circuit

Abstract

The utility model discloses an anti-freezing rain pantograph lower arm gas circuit, which is characterized in that a gas pipe is arranged in an inner cavity of a lower arm rod, penetrates out of the side wall of the lower arm rod through a plate penetrating joint, and is fixed on the side wall of the lower arm rod. The plate-penetrating connector penetrates through a hole in the center of the circular plate, two ends of the plate-penetrating connector are locked by nuts, and the circular plate is fixed on the lower arm rod through screws. The two ends of the plate penetrating connector are respectively provided with a clamping sleeve nut, the opposite ends of the two clamping sleeve nuts are respectively provided with a thin nut, after the two clamping sleeve nuts are oppositely tightened, the two thin nuts are tightened, and the plate penetrating connector is fixed to the circular plate through the two thin nuts. And the air path is arranged in the lower arm, so that the air path can be prevented from being damaged by the falling ice, and the stability of the pantograph running in the freezing rain weather is improved.

Description

Technical Field

[0001] This utility model relates to a pantograph component for locomotives, and more particularly to an anti-freezing and rainproof air circuit for the lower arm of the pantograph. Background Technology

[0002] Currently, freezing rain is a natural phenomenon that occurs during severe cold weather, which can cause ice to accumulate on the overhead contact line. When the pantograph is in operation, the ice on the contact line will fall and hit the air circuit of the lower arm. After the air circuit is damaged, the pantograph will automatically lower, causing the pantograph to malfunction.

[0003] In view of the above, this utility model is hereby proposed. Utility Model Content

[0004] The purpose of this invention is to provide an anti-freezing and rainproof air circuit for the lower arm of the pantograph, so as to solve the above-mentioned technical problems existing in the prior art.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] The air circuit of the lower arm of the antifreeze and rainproof pantograph of this utility model has an air pipe installed in the inner cavity of the lower arm and passing through the side wall of the lower arm through a through-plate connector and fixed to the side wall of the lower arm.

[0007] Compared with the prior art, the anti-freezing rain pantograph lower arm air circuit provided by this utility model has the air circuit built into the lower arm, which avoids the air circuit being damaged by falling ice and improves the stability of the pantograph in freezing rain weather. Attached Figure Description

[0008] Figure 1 A schematic diagram of the air circuit structure of the lower arm of the antifreeze pantograph provided in this embodiment of the utility model.

[0009] Figure 2 A cross-sectional view of the air path of the lower arm of the antifreeze and rain-proof pantograph provided in this embodiment of the utility model.

[0010] Figure 3 This is a top view of the through-plate joint fixing structure in an embodiment of this utility model.

[0011] In the picture:

[0012] 1-Lower arm 2-Air hose 3-Collar nut 4-Thin nut 5-Round plate 6-Through plate connector 7-Screw Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments, which do not constitute a limitation on the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0014] The contents not described in detail in the embodiments of this utility model are existing technologies known to those skilled in the art. Where specific conditions are not specified in the embodiments of this utility model, they shall be performed according to conventional conditions in the art or conditions recommended by the manufacturer. Reagents or instruments used in the embodiments of this utility model whose manufacturers are not specified are all conventional products that can be purchased commercially.

[0015] The air circuit of the lower arm of the antifreeze and rainproof pantograph of this utility model has an air pipe installed in the inner cavity of the lower arm and passing through the side wall of the lower arm through a through-plate connector and fixed to the side wall of the lower arm.

[0016] The through-plate connector passes through the hole in the center of the circular plate, and both ends are locked with nuts. The circular plate is fixed to the lower arm by screws.

[0017] The through-plate connector is provided with a retaining nut at both ends, and a thin nut is provided at the opposite end of the two retaining nuts. After the two retaining nuts are tightened relative to each other, the two thin nuts are tightened, and the two thin nuts fix the through-plate connector to the circular plate.

[0018] The lower arm has a flange around the through hole that passes through the plate joint, and the flange has a threaded hole.

[0019] The circular plate has three through holes: the middle one is for passing through the through-plate connector, and the two symmetrical through holes on both sides are through holes for passing through screws, corresponding to the threaded holes on the flange.

[0020] The lower arm is a hollow metal tube.

[0021] In summary, the anti-freezing rain pantograph lower arm air circuit of this utility model embodiment has the air circuit built into the lower arm, which avoids damage to the air circuit by falling ice and improves the stability of the pantograph during freezing rain weather.

[0022] To more clearly demonstrate the technical solution and effects provided by this utility model, the following detailed description of the embodiments of this utility model is provided with reference to specific examples.

[0023] Example 1

[0024] like Figure 1 , Figure 2 , Figure 3As shown:

[0025] This utility model mainly includes a lower arm, a circular plate, a through-plate connector, and an air pipe;

[0026] The through-plate connector passes through the hole in the center of the circular plate and is secured at both ends with nuts. The air hose is fixed to both ends of the through-plate connector via clamping nuts. The lower arm has threaded holes that match the circular plate; the central through hole allows the connector to pass through, and the two symmetrical threaded holes on either side are also present. The circular plate has three through holes: the central through hole allows the through-plate connector to pass through, and the two symmetrical through holes on either side allow screws to pass through for fixing to the lower arm welded in place. The lower arm has a hollow metal tube in the middle, as shown above, allowing the air hose to pass through the cavity of the lower arm, providing excellent protection for the air hose. Even if there is ice debris, it will hit the lower arm steel tube, preventing it from hitting the air hose.

[0027] The air passage design of this utility model allows the air tube to be built inside the steel pipe welded to the lower arm, which effectively prevents the air tube from being hit by ice fragments in freezing rain weather and prevents the air tube from being hit by ice fragments and causing malfunctions.

[0028] The air hose is housed within the lower arm via two through-plate connectors. The circular plate contains three holes: the central hole secures the through-plate connectors, while the two side holes secure the plate itself. The air hose can be connected to the through-plate connectors via clamp nuts. This internal housing of the air hose within the lower arm prevents it from being directly struck by ice fragments during freezing rain.

[0029] The above description is merely a preferred embodiment of this utility model, but the scope of protection of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this utility model should be included within the scope of protection of this utility model. Therefore, the scope of protection of this utility model should be determined by the scope of the claims. The information disclosed in the background section is intended only to enhance the understanding of the overall background technology of this utility model and should not be construed as an admission or implication in any way that such information constitutes prior art known to those skilled in the art.

Claims

1. A pantograph lower arm air circuit for anti-icing rain, characterized by, The trachea is arranged in the inner cavity of the lower arm rod, and passes through the side wall of the lower arm rod through the plate penetrating joint and is fixed on the side wall of the lower arm rod; The plate penetrating joint passes through the hole in the center of the circular plate, and the two ends are locked by nuts, and the circular plate is fixed on the lower arm rod by screws; The plate penetrating joint is provided with a sleeve nut at each end, and the opposite ends of the two sleeve nuts are respectively provided with thin nuts, the two sleeve nuts are tightened, and then the two thin nuts are tightened, and the two thin nuts fix the plate penetrating joint on the circular plate.

2. The anti-icing pantograph arm lower arm air circuit according to claim 1, characterized in that, A flange is arranged around the through hole of the plate penetrating joint on the lower arm rod, and a threaded hole is arranged on the flange; Three through holes are arranged on the circular plate, the through hole in the middle is for the plate penetrating joint, and the symmetrical through holes on the two sides are for the screws corresponding to the threaded holes on the flange.

3. The anti-icing pantograph arm lower arm air circuit according to claim 1 or 2, characterized in that, The lower arm rod is a hollow metal pipe.

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