Novel expansion joint

Abstract

The utility model discloses a novel expansion joint. Comprising a fixed rail, a movable rail, a fishplate assembly, a copper plate, a spring, a copper braided wire, a special-shaped fishplate, a protective cover, a bolt assembly A, a bolt assembly B, a bolt assembly C and a bolt assembly D, compared with a traditional expansion joint, the expansion joint is small in occupied space, the installation and use range of the expansion joint is enlarged, and the expansion joint is suitable for installation and use places in narrow and small spaces.

Description

TECHNICAL FIELD

[0001] The utility model belongs to railway transport equipment technical field, concretely relates to a novel expansion joint. BACKGROUND

[0002] Expansion joint is the important part of the contact rail power supply system, to ensure that the contact rail free thermal expansion and contraction along the line direction and keep the current unobstructed, ensure that the train current collecting shoe uninterrupted.

[0003] The current contact rail expansion joint's flow guide assembly is usually installed on the rail bottom of the expansion joint fixed rail and movable rail, so that the overall space size of the expansion joint is much larger than other parts of the contact rail, so the ordinary expansion joint is difficult to be used in the narrow space application place. SUMMARY

[0004] The utility model discloses in view of the defects of prior art, propose a novel expansion joint. This expansion joint removes the flow guide assembly placed on the rail bottom of the fixed rail and movable rail, utilizes the fishplate assembly to guide flow, greatly reduces the overall space size of the expansion joint, is suitable for narrow space installation use place.

[0005] The utility model provides a novel expansion joint contains: both sides fishplate assembly 3 through bolt assembly A9 clamping fixed rail 1 and movable rail 2, movable rail 2 inside is provided with two copper plates 4 and is provided with spring 5 between two copper plates 4, spring 5 opens two copper plates 4 and makes it and both sides fishplate assembly 3 end close contact, one end of two copper plates 4 is connected copper braid 6 one end through bolt assembly B10, copper braid 6 other end is connected with special-shaped fishplate 7 and movable rail 2 through bolt assembly C11, protective cover 8 is installed on movable rail 2 through bolt assembly D12.

[0006] The novel expansion joint, fishplate assembly 3 includes fishplate 3-1, fishplate bolt assembly 3-2 and copper block 3-3, and the fishplate 3-1 is connected with the copper block 3-3 through the fishplate bolt assembly 3-2.

[0007] The novel expansion joint, the fishplate 3-1 in the fishplate assembly 3 is fixedly clamped with the fixed rail 1 by the bolt assembly A9, and the copper block 3-3 in the fishplate assembly 3 is in contact with the copper plate 4 in the movable rail 2. Since the spring 5 is arranged between the two copper plates 4, the copper block 3-3 and the copper plate 4 always maintain close contact, so that the current is smoothly transmitted from the copper block 3-3 to the copper plate 4.

[0008] The utility model has the advantages that the novel expansion joint utilizes both sides fishplate assemblies to shunt on the fixed rail side, and the current is transmitted to the copper plate in the movable rail through the fishplate assembly. The current in the copper plate is transmitted to the movable rail through the copper braid, so that the current shunting process from the fixed rail to the movable rail is realized.

[0009] The new expansion joint is characterized in that the guide flow components are arranged on the two side fish tail plate assemblies on the fixed rail side and in the inner part of the movable rail on the movable rail side. BRIEF DESCRIPTION OF DRAWINGS

[0010] Fig. 1 It is an isometric view of the new expansion joint.

[0011] Fig. 2 It is a rear sectional view of the new expansion joint.

[0012] Fig. 3 It is a fish tail plate assembly view of the new expansion joint.

[0013] In the figure, 1 is a fixed rail, 2 is a movable rail, 3 is a fish tail plate assembly, 3-1 is a fish tail plate, 3-2 is a fish tail plate bolt assembly, 3-3 is a copper block, 4 is a copper plate, 5 is a spring, 6 is a copper braided wire, 7 is a special-shaped fish tail plate, 8 is a copper protective cover, 9 is a bolt assembly A, 10 is a bolt assembly B, 11 is a bolt assembly C, and 12 is a bolt assembly D. DETAILED DESCRIPTION

[0014] The new expansion joint will be further described below in combination with the drawings and specific embodiments.

[0015] According to Figs. 1-3 A new expansion joint is shown in the figure, the two side fish tail plate assemblies 3 are clamped to the fixed rail 1 and the movable rail 2 through the bolt assembly A 9, the movable rail 2 is internally provided with two copper plates 4 and the two copper plates 4 are provided with a spring 5 therebetween, the spring 5 expands the two copper plates 4 and makes them tightly contact with the end of the two side fish tail plate assemblies 3, the fish tail plate assembly 3 comprises a fish tail plate 3-1, a fish tail plate bolt assembly 3-2 and a copper block 3-3, the fish tail plate 3-1 is connected to the copper block 3-3 through the fish tail plate bolt assembly 3-2, the fish tail plate 3-1 in the fish tail plate assembly 3 is fixedly clamped to the fixed rail 1 through the bolt assembly A 9, and the copper block 3-3 in the fish tail plate assembly 3 contacts with the copper plate 4 in the movable rail 2, since the spring 5 is arranged between the two copper plates 4, the copper block 3-3 and the copper plate 4 always keep tight contact, which ensures that the current is smoothly transmitted from the copper block 3-3 to the copper plate 4, one end of the two copper plates 4 is connected to one end of the copper braided wire 6 through the bolt assembly B 10, the other end of the copper braided wire 6 is connected to the special-shaped fish tail plate 7 and the movable rail 2 through the bolt assembly C 11, and the protective cover 8 is installed on the movable rail 2 through the bolt assembly D 12.

[0016] The current on the fixed rail 1 is transmitted to the copper plate 4 inside the movable rail 2 through the fishplate assembly 3, and the copper plate 4 is transmitted to the movable rail 2 through the copper woven bag 6, which realizes the current transmission process from the fixed rail 1 to the movable rail 2.

[0017] Compared with the traditional expansion joint provided with the current guide part at the bottom of the rail, the novel expansion joint greatly reduces the overall installation size of the expansion joint, increases the use range, and is suitable for installation in narrow space.

Claims

1. A novel expansion joint, characterized by, Two side fishplate assembly (3) through bolt assembly A (9) clamping fixed rail (1) and moving rail (2), the moving rail (2) inside is provided with two copper plate (4) and is provided with spring (5) between two copper plate (4), the spring (5) will two copper plate (4) open and make it and two side fishplate assembly (3) end close contact, one end of the two copper plate (4) is connected copper braided wire (6) one end through bolt assembly B (10), the other end of the copper braided wire (6) is connected with special-shaped fishplate (7) and moving rail (2) through bolt assembly C (11), the protective cover (8) is installed on moving rail (2) through bolt assembly D (12).

2. The new expansion joint according to claim 1, characterized in that: Fishplate assembly (3) includes fishplate (3-1), fishplate bolt assembly (3-2) and copper block (3-3), fishplate (3-1) and copper block (3-3) are connected through fishplate bolt assembly (3-2).

3. A new expansion joint according to claim 1 or 2, characterized in that: Fishplate (3-1) in fishplate assembly (3) is fixedly clamped with fixed rail (1) by bolt assembly A (9), copper block (3-3) in fishplate assembly (3) is in contact with copper plate (4) in moving rail (2), since spring (5) is arranged between two copper plate (4), copper block (3-3) and copper plate (4) always keep close contact, guaranteeing that current is smoothly transmitted from copper block (3-3) to copper plate (4).

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