CN211076089U

CN211076089U - Large-scale passenger car top cover skin sealing structure

Info

Publication number: CN211076089U
Application number: CN201921122719.7U
Authority: CN
Inventors: 管鸿键; 周鹏飞; 徐坤江; 申云峰; 陈翔
Original assignee: Kunming Coach Manufacturing Co ltd
Current assignee: Kunming Coach Manufacturing Co ltd
Priority date: 2019-07-17
Filing date: 2019-07-17
Publication date: 2020-07-24
Anticipated expiration: 2029-07-17

Abstract

A sealing structure of a large bus top cover skin belongs to the field of bus manufacturing; the composite material comprises a first framework, a second framework, a third framework, a top skin, a front surrounding skin, a rear surrounding skin and a sealant; the top skin is fixedly arranged with the first framework, the front and rear surrounding skins are fixedly arranged with the third framework, the third framework is fixedly arranged with the second framework, and the sealant is arranged in a gap between the first framework and the third framework; all skins of the utility model are welded on the framework and can be finished at a low station, and the working safety is high; the low-station operation efficiency is high, the skin tensioning effect is good, and the skin flatness is good; the whole production line of a factory is not occupied, the skin welding work can be finished at the sub-station, and the efficiency of the whole production line of the factory is improved.

Description

Large-scale passenger car top cover skin sealing structure

Technical Field

The utility model relates to a large bus top cap covering seal structure belongs to the passenger train field of making.

Background

At present, in order to reduce the cost of stamping parts, passenger cars are mostly in a framework skin structure. As shown in fig. 1, traditional passenger train top covering encloses the covering around with and adopts the overlap joint mode to guarantee sealed waterproof more, and when the overlength of passenger train captain, there is certain drawback in traditional overlap joint mode: the overlapping mode can only be used for covering the skin after the passenger car framework is folded, the passenger car body is higher, high-station operation of workers is required, and potential safety hazards exist; the top skin needs to be tensioned and then welded on the framework, the coach body is long, the top skin needs to be tensioned and lapped, the process is complex, the top skin is difficult to tension, and the skin is not flat; the skin welding work needs to be finished on the whole vehicle production line, the whole vehicle production line is occupied, the production line bottleneck is formed, and the production efficiency is influenced.

SUMMERY OF THE UTILITY MODEL

For the above-mentioned not enough and shortcoming of solving prior art existence, the utility model provides a motorbus top cap covering seal structure.

The purpose of the utility model is realized like this: a sealing structure for a top cover skin of a large bus comprises a first framework, a second framework, a third framework, a top skin, a front surrounding skin, a rear surrounding skin and a sealant; one end of the front and rear wall skin is fixedly arranged on the top surface of the first framework, the end surface of the front and rear wall skin is superposed with the side vertical surface of the first framework, and the first framework is fixedly connected with the vehicle body; top covering one end and third skeleton top surface fixed connection and its terminal surface and the coincidence of third skeleton side facade, third skeleton bottom surface and second skeleton top surface fixed connection, second skeleton side facade, third skeleton side facade are located and leave the clearance between top covering and third skeleton stiff end terminal surface homonymy and second skeleton side facade, the third skeleton side facade, second skeleton and automobile body fixed connection, first skeleton side facade, the laminating of second skeleton side facade, sealed glue is filled in the clearance between first skeleton side facade and third skeleton side facade. All skins can be welded on the framework at a low station, and then the frameworks are assembled, so that the working safety is high, the low-station operation efficiency is high, the skin tensioning effect is good, and the skin smoothness is good; the whole production line of a factory is not occupied, the skin welding work can be finished at the sub-station, and the efficiency of the whole production line of the factory is improved.

More specifically, the extension surfaces of the top surfaces of the first framework and the third framework are overlapped, so that the flatness of the roof is guaranteed, water flow is convenient to discharge, and no accumulated water is formed.

More specifically, the connection mode of the front and rear wall skins and the first framework and the connection mode of the top skin and the third framework are full-welded, so that good sealing performance and good waterproof performance of the passenger car are guaranteed.

Furthermore, the first framework and the second framework are rectangular tubes.

Furthermore, the third framework is made of C-shaped steel, so that the structure is simple and the materials are convenient to obtain.

Furthermore, the second skeleton is full weld with third skeleton connected mode, and the leakproofness is good.

More specifically, the upper surface of the sealing rubber coincides with the upper surface of the skin, so that the sealing performance is good, and the waterproof effect is good.

The utility model has convenient operation, after the skin and the framework are welded at the low station, the framework is folded, the high station operation is reduced, and the production efficiency is improved; after the framework is folded, sealant is filled between gaps between the front and rear skin and the top skin, and the sealing performance and the waterproof performance are good.

Drawings

FIG. 1 is a schematic diagram of a prior art structure;

FIG. 2 is a schematic structural view of the present invention;

in the figure: 1-a first framework, 2-a second framework, 3-a third framework, 4-a top skin, 5-a sealant, 6-a front and back surrounding skin, 101-a first framework side vertical surface, 201-a second framework side vertical surface (201), and 301-a third framework side vertical surface.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples, but the present invention is not limited thereto in any way, and any modification or improvement based on the teaching of the present invention is within the protection scope of the present invention.

As shown in fig. 2: the large bus roof skin sealing structure of the embodiment comprises: first skeleton 1, second skeleton 2, third skeleton 3, top covering 4 enclose covering 6, sealed glue 5 around, first skeleton 1 and second skeleton 2 are the rectangular pipe, and third skeleton 3 is C shape steel. The first framework 1, the second framework 2 and the third framework 3 respectively comprise a first framework side vertical surface 101, a second framework side vertical surface 201 and a third framework side vertical surface 301; one end of the front and rear surrounding skin 6 is welded with the top surface of the first framework 1, the end surface of the front and rear surrounding skin is superposed with the side vertical surface 101 of the first framework, and the first framework 1 is fixedly connected with the vehicle body; one end of a top skin 4 is welded with the top surface of a third framework 3, the end surface of the top skin coincides with a third framework side vertical surface 301, the bottom surface of the third framework 3 is welded with the top surface of a second framework 2, the second framework side vertical surface 201 and the third framework side vertical surface 301 are located on the same side of the top skin 4 and the end surface of the fixed end of the third framework 3, a gap is reserved between the second framework side vertical surface 201 and the third framework side vertical surface 301, the second framework 2 is fixedly connected with a vehicle body, the first framework side vertical surface 101 and the second framework side vertical surface 201 are attached, and a sealant 5 is arranged in the gap between the first framework side vertical surface 101 and the third framework side vertical surface 301. The top surface of the first framework 1 coincides with the extension surface of the top surface of the third framework 3.

The sealing mode enables the framework to be assembled after the framework is welded with the skin, and the problems of low production efficiency, complex welding process, uneven welding products and high-position operation danger caused by high-position large-scale welding operation are solved.

While the present invention has been described in detail with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. The utility model provides a large bus top cap covering seal structure which characterized in that: comprises a first framework (1), a second framework (2), a third framework (3), a top skin (4), front and back surrounding skins (6) and a sealant (5); one end of the front and rear surrounding skin (6) is fixedly arranged with the top surface of the first framework (1), the end surface of the front and rear surrounding skin is superposed with the side vertical surface (101) of the first framework, and the first framework (1) is fixedly connected with a vehicle body; one end of the top skin (4) is fixedly arranged with the top surface of the third framework (3), the end surface of the top skin coincides with the side vertical surface (301) of the third framework, and the bottom surface of the third framework (3) is fixedly connected with the top surface of the second framework (2); second skeleton side facade (201), third skeleton side facade (301) are located top covering (4) and third skeleton (3) stiff end terminal surface homonymy and leave the clearance between second skeleton side facade (201), the third skeleton side facade (301), second skeleton (2) and automobile body fixed connection, first skeleton side facade (101), the laminating of second skeleton side facade (201), sealed glue (5) are filled in the clearance between first skeleton side facade (101) and third skeleton side facade (301).

2. The large bus roof skin sealing structure of claim 1, wherein: the top surface of the first framework (1) coincides with the extension surface of the top surface of the third framework (3).

3. The large bus roof skin sealing structure of claim 1, wherein: the front and rear surrounding skins (6) are welded with the first framework (1) and the top skin (4) are welded with the third framework (3).

4. The large bus roof skin sealing structure of claim 1, wherein: the first framework (1) and the second framework (2) are rectangular tubes.

5. The large bus roof skin sealing structure according to any one of claims 1 to 3, characterized in that: the third framework (3) is made of C-shaped steel.

6. The large bus roof skin sealing structure of claim 1, wherein: the second framework (2) and the third framework (3) are connected in a full-length welding mode.