CN216002569U

CN216002569U - Drain pipe structure suitable for large arc top or flat top city railway automobile body

Info

Publication number: CN216002569U
Application number: CN202122316245.3U
Authority: CN
Inventors: 李刚; 李岩; 季操; 王蕾
Original assignee: CRRC Changchun Railway Vehicles Co Ltd
Current assignee: CRRC Changchun Railway Vehicles Co Ltd
Priority date: 2021-09-24
Filing date: 2021-09-24
Publication date: 2022-03-11
Anticipated expiration: 2031-09-24

Abstract

A drain pipe structure suitable for a large circular arc top or a flat top city railway vehicle body is characterized in that a baffle is arranged at the end part of a vehicle roof perpendicular to a rain eave, a drainage notch is reserved at the junction of the baffle and the rain eave, a water collecting box is connected at the drainage notch in a sealing manner, a box body notch matched with the drainage notch is arranged at the upper end of a box body, a filter screen is arranged at the water inlet of the water collecting box, and the height of the water collecting box arranged behind a drain pipe is the same as the height of the baffle. The utility model can collect the water flow to the water inlet by arranging the baffle plate and the water collecting box, and realizes the increase of the area of the water inlet area in a limited space, thereby improving the effect of collecting the water flow; meanwhile, the water storage capacity is improved, and the problem of low drainage efficiency of accumulated water on the roof is solved; the filter screen is arranged at the water inlet, so that the discharge speed of water flow is not influenced, sundries can be prevented from blocking the water inlet, and the maintenance frequency is reduced.

Description

Drain pipe structure suitable for large arc top or flat top city railway automobile body

Technical Field

The utility model belongs to the technical field of rail vehicle drainage, especially, relate to a drain pipe structure of orthodrome top or flat top vehicle.

Background

The rain eaves structure is arranged on two sides of the top of the existing urban railway passenger car, and when the car runs in a rainy day, rainwater is collected to the rain eaves and flows to the end of the car. The conventional drainage structure of the existing end part is shown in fig. 1 and 2, a water inlet 1 is reserved at the end part of a rain eave, and two sides of an end wall are respectively welded with a drainage pipe 2. Because the cross-section of drain pipe is limited, the drainage ability is lower, because orthodrome or flat top structure are unfavorable for the flow of rivers again, can't get rid of in time in order when rivers are too big, simultaneously when the vehicle is when ground operation, the condition that debris such as fallen leaves, branch, plastic refuse easily appear in the drain pipe entrance and block has increased maintenance work.

Disclosure of Invention

In order to realize smooth drainage and solve the problem of blockage of a drainage pipe, the invention provides an end drainage pipe structure suitable for a large arc roof or flat roof city railway vehicle body.

In order to achieve the purpose, the invention provides a drain pipe structure suitable for a large arc top or flat top city railway vehicle body, which is characterized in that: establish a baffle at roof tip perpendicular to eaves, the drainage breach is kept with eaves junction to the baffle, seals at drainage breach department and connects a water-collecting box, and a box body breach that suits with the drainage breach is established to the box body upper end, and a filter screen is established to the water inlet department of water-collecting box, and the height that the water-collecting box was installed behind the drain pipe is the same with the baffle height.

Further, the water collecting box is a wide-mouth water collecting box.

Furthermore, the gap of the grid of the filter screen is in the range of 20-30 mm.

Furthermore, a gap of 2-3mm is reserved between the bottom surface of the filter screen and the upper plane of the car roof.

The utility model can collect the water flow to the water inlet by arranging the baffle plate and the water collecting box, and realizes the increase of the area of the water inlet area in a limited space, thereby improving the effect of collecting the water flow; meanwhile, the water storage capacity is improved, and the problem of low drainage efficiency of accumulated water on the roof is solved; the filter screen is arranged at the water inlet, and the density of the filter screen grating is properly set, so that the discharge speed of water flow is not influenced, sundries can be prevented from blocking the water inlet, and the maintenance frequency is reduced. Compared with the conventional drainage structure, the utility model has the advantages of better collecting effect, large temporary water storage amount, smooth discharge and difficult blockage.

Drawings

FIG. 1 is a schematic view of a conventional metro vehicle end drain pipe structure;

FIG. 2 is an enlarged view of the structure I at the water discharge position in FIG. 1;

FIG. 3 is a schematic structural view of the present invention;

FIG. 4 is an exploded view of the present invention;

FIG. 5 is a schematic view of the structure of the installation roof of the present invention;

fig. 6 is a partially enlarged schematic view of fig. 5.

Detailed Description

Referring to fig. 3-6, the embodiment of the present invention firstly sets up the water baffle 3 at the top end of the car, which can effectively prevent the rainwater or the air conditioner condensate from overflowing the roof in the large arc or flat structure, and at the same time, can help the water flow to converge to the direction of the rain eaves 7. The water baffle keeps the same level with the height of the rain eaves, and a drainage notch 8 is reserved at the junction close to the rain eaves. A wide-mouth water collecting box 4 is welded at a drain outlet outside an end wall, wherein a closed structure is formed between the outside of the box body and a baffle plate and between the outside of the box body and a rain eave in a full-welding mode, one end of a notch of the box body is aligned with a drainage notch 8 on the roof, and the other end of the notch of the box body is connected with a drain pipe 13. The outline 11 of the wide-mouth water collecting box and the outline 12 of the through passage are kept in a safe space, and the whole structure is in a funnel type welding structure. The water collecting box can obviously increase the water inlet amount, simultaneously plays a role of temporary water storage, and effectively improves the water discharge amount.

In order to prevent sundries from entering the water inlet, a filter screen 5 is arranged at the inlet of the wide-mouth water collecting box, and a 2-3mm gap is reserved between the bottom surface of the filter screen and the upper plane 9 of the car roof, so that smooth water flow can be ensured, and the problem of local water accumulation is avoided; the side surface is fixed on the edge of the water collecting box by adopting a screw 10, thereby not only preventing sundries from entering, but also being beneficial to maintenance operation.

Claims

1. The utility model provides a drain pipe structure suitable for big circular arc top or flat top city railway automobile body which characterized in that: establish a baffle at roof tip perpendicular to eaves, the drainage breach is kept with eaves junction to the baffle, seals at drainage breach department and connects a water-collecting box, and a box body breach that suits with the drainage breach is established to the box body upper end, and a filter screen is established to the water inlet department of water-collecting box, and the height that the water-collecting box was installed behind the drain pipe is the same with the baffle height.

2. The drain pipe structure suitable for large arc roof or flat roof city block car body of claim 1, wherein: the water collecting box is a wide-mouth water collecting box.

3. The drain pipe structure suitable for large arc roof or flat roof city block car body of claim 1, wherein: the gap of the grid of the filter screen is within the range of 20-30 mm.

4. The drain pipe structure suitable for large arc roof or flat roof city block car body of claim 1, wherein: a2-3 mm gap is reserved between the bottom surface of the filter screen and the upper plane of the car roof.