Natural ventilation centralized waste discharge device for whole vehicle air tightness test

Abstract

The utility model relates to a natural ventilation centralized waste discharge device for a whole vehicle air tightness test. The natural ventilation centralized waste discharge device comprises an upper sealing plate, a lower sealing plate, an inner sealing plate and a body, the upper sealing plate is rotatably arranged at the upper part of the body, the lower sealing plate is arranged at the bottom of one side of the body, a male part is fixedly arranged on the body, a female part is fixedly arranged on the lower sealing plate, and the male part and the female part are tensioned by a clamping jaw positioned on the lower sealing plate; the inner sealing plate is hinged to the body and can be rotationally opened and closed. According to the utility model, components used for sealing test are provided, so that the requirements of new construction or maintenance of the motor train unit cannot be met; meanwhile, the grating plate structure in the middle can bear pressure and is convenient to overhaul; under the action of the water collecting tank, water drainage is facilitated.

Description

Technical Field

[0001] The utility model relates to a natural ventilation centralized exhaust device for whole vehicle air tightness test, belonging to the technical field of rail vehicles. Background Art

[0002] The air tightness of a train refers to the sealing performance of the pressure inside the train relative to the pressure outside the train, and is an important process in the manufacture and maintenance of a train. The purpose of the air tightness test is to verify the air tightness of the train during the manufacture and maintenance of the train, and to rectify the problems that affect the air tightness to ensure that the train has good air tightness.

[0003] Vehicle manufacturers now require component suppliers to set up structures on components that are convenient for air-tightness testing so that they can be used when EMUs are newly built or overhauled. The components produced by existing suppliers, such as centralized exhaust devices, do not have structures that are convenient for air-tightness testing and cannot meet the needs of new construction or overhaul of EMUs.

[0004] The existing centralized waste discharge device still has the following problems: 1. The middle part of the waste discharge device is a mesh plate structure, which cannot bear pressure and is inconvenient to repair; 2. When rainwater falls on the waste discharge device, the rainwater cannot be effectively discharged. Summary of the invention

[0005] The utility model aims to overcome the above-mentioned shortcomings and provides a natural ventilation centralized exhaust device for whole vehicle air tightness test.

[0006] The purpose of the utility model is achieved in this way:

[0007] A natural ventilation centralized exhaust device for vehicle air tightness test, characterized by comprising an upper sealing plate, a lower sealing plate, an inner sealing plate and a body;

[0008] The upper sealing plate is rotatably arranged on the upper part of the body, the lower sealing plate is arranged on the bottom of one side of the body, a male part is fixedly arranged on the body, a female part is fixedly arranged on the lower sealing plate, and a clamping claw located on the lower sealing plate tightens the male part and the female part;

[0009] The inner sealing plate is hinged to the body and can be rotated to open and close.

[0010] Furthermore, it comprises a pressure-bearing plate, which is arranged in the middle part of the main body.

[0011] Furthermore, it comprises a water collecting tank which is arranged in the body and located between the pressure plate and the inner sealing plate.

[0012] Furthermore, the pressure plate is of a grid type and is made of aluminum alloy material.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model discloses a natural ventilation centralized exhaust device for whole vehicle air tightness test, which has components for air tightness test and cannot meet the needs of new construction or maintenance of EMUs; at the same time, the grid plate structure in the middle can bear pressure, which is convenient for maintenance; and under the action of the water collecting trough, it is easy to drain water. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is a schematic diagram of a natural ventilation centralized exhaust device for whole vehicle air tightness test.

[0016] Figure 2 for Figure 1 Schematic diagram with the upper sealing plate removed.

[0017] In the figure:

[0018] Upper sealing plate 1, lower sealing plate 2, claws 2.1, male part 2.2, inner sealing plate 3, water collecting trough 4, pressure plate 5, body 6, female part 6.1. DETAILED DESCRIPTION

[0019] The following is a further description of the specific implementation of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0020] See also Figure 1 The utility model discloses a natural ventilation centralized exhaust device for whole vehicle air tightness test, comprising an upper sealing plate 1, a lower sealing plate 2, an inner sealing plate 3, a water collecting tank 4, a pressure plate 5 and a body 6.

[0021] The upper sealing plate 1 is rotatably arranged on the upper part of the body 6 and is used to seal the upper air inlet of the body 6. The lower sealing plate 2 is arranged at the bottom of one side of the body 6. A male part 2.2 is fixedly arranged on the body 6, and a female part 6.1 is fixedly arranged on the lower sealing plate 2. The claw 2.1 located on the lower sealing plate 2 tightens the male part 2.2 and the female part 6.1, thereby fixing the lower sealing plate 2 on the body 6.

[0022] The inner sealing plate 3 is hinged to the body 2 and can be opened and closed.

[0023] The pressure plate 5 is located in the middle of the body 6. The pressure plate 5 is a grid type and is made of aluminum alloy. Compared with the existing filter plate, it has a strong pressure bearing capacity and can withstand a pressure of 90Kg, which is convenient for subsequent maintenance.

[0024] The water collecting trough 4 is arranged in the main body 6 and is located between the pressure plate 5 and the inner sealing plate 3. When rainwater falls, the rainwater can fall into the drainage port at the bottom of the locomotive through the water collecting trough 4.

[0025] The utility model discloses a natural ventilation centralized exhaust device for whole vehicle air tightness test, which has components for air tightness test and cannot meet the needs of new construction or maintenance of EMUs; at the same time, the grid plate structure in the middle can bear pressure, which is convenient for maintenance; and under the action of the water collecting trough, it is easy to drain water.

[0026] In the above embodiments, the present invention is only described exemplarily, but those skilled in the art may make various modifications to the present invention without departing from the spirit and scope of the present invention after reading this patent application.

Claims

1. A natural ventilation centralized exhaust device for vehicle air tightness test, characterized in that: It includes an upper sealing plate, a lower sealing plate, an inner sealing plate and a body; The upper sealing plate is rotatably arranged on the upper part of the body, the lower sealing plate is arranged on the bottom of one side of the body, a male part is fixedly arranged on the body, a female part is fixedly arranged on the lower sealing plate, and a clamping claw located on the lower sealing plate tightens the male part and the female part; The inner sealing plate is hinged to the body and can be rotated to open and close; It comprises a pressure bearing plate which is arranged in the middle of the main body.

2. A natural ventilation centralized exhaust device for vehicle air tightness test according to claim 1, characterized in that: The utility model comprises a water collecting tank which is arranged in the main body and located between the pressure bearing plate and the inner sealing plate.

3. The natural ventilation centralized exhaust device for vehicle air tightness test according to claim 1, characterized in that: The pressure plate is grid-type and made of aluminum alloy.

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