CN202754346U - Manhole cover for railway tanker car - Google Patents
Manhole cover for railway tanker car Download PDFInfo
- Publication number
- CN202754346U CN202754346U CN 201220334618 CN201220334618U CN202754346U CN 202754346 U CN202754346 U CN 202754346U CN 201220334618 CN201220334618 CN 201220334618 CN 201220334618 U CN201220334618 U CN 201220334618U CN 202754346 U CN202754346 U CN 202754346U
- Authority
- CN
- China
- Prior art keywords
- cover
- manhole cover
- dished
- tank car
- manhole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The utility model provides a manhole cover for a railway tanker car. The manhole cover comprises a dished cover, wherein the dished cover is a spherical surface which is integrally formed by being pressed and protrudes outwards. The manhole cover for the railway tanker car is simple in manufacturing craft and low in cost.
Description
Technical field
The utility model relates to the tank car field, relates in particular to a kind of tank car by manhole cover.
Background technology
At present, along with China railways product international influence increases gradually, now participate in the competition of world market comprehensively, tank car for developed countries such as outlet Australia needs to design with reference to the AAR standard specifications, and AAR standard-required non-pressure tank car manhole cover must be used the metallic material manufacturing through foundry goods, forging or the welding of approval, must not adopt the cast iron manhole cover.So the cast iron manhole cover that the China railways tank car is used can't satisfy the operating needs that exports tank car.
The utility model content
In order to solve existing technical matters in the background technology, the utility model proposes a kind of tank car by manhole cover, manufacturing process is simple and cost is low.
Technical solution of the present utility model is: a kind of tank car is characterized in that by manhole cover: described manhole cover comprises dished cover, and described dished cover is the outwards sphere of projection of single cavity die.
The border of above-mentioned dished cover arranges the inner edge radially vertical with dished cover.
Above-mentioned inner edge and the welding of dished cover inside face.
Between above-mentioned inner edge and the dished cover seal groove is set.
Tank car of the present utility model adopts the manhole cover structure of welded type by manhole cover, and the manhole cover material can be adjusted according to the intensity needs, satisfies the design strength requirement.Welding manhole cover manufacturing process is simple, cost is lower.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the second example structure schematic diagram of the present utility model;
The specific embodiment
Referring to Fig. 1, Fig. 2, tank car of the present utility model by manhole cover, comprise dished cover 1 and inner edge 2, dished cover 1 single cavity die becomes the outwards sphere of projection, inner edge 2 is connected to dished cover 1 inside face by welding manner, is provided with seal groove 3 between dished cover 1 and the inner edge 2, after welding, seal groove is carried out machinework; Another kind of embodiment of the present utility model also can adopt following structure: dished cover 1 die mould becomes the outwards sphere of projection, and the edge of dished cover 1 carries out butt welding with certain straight end face with the flange 4 that is processed with seal groove.
Claims (4)
1. a tank car is characterized in that by manhole cover: described manhole cover comprises dished cover, and described dished cover is the outwards sphere of projection of single cavity die.
2. tank car according to claim 1 is characterized in that by manhole cover: the border of described dished cover arranges the inner edge radially vertical with dished cover.
3. tank car according to claim 2 is characterized in that by manhole cover: described inner edge and the welding of dished cover inside face.
4. tank car according to claim 3 is characterized in that by manhole cover: between described inner edge and the dished cover seal groove is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220334618 CN202754346U (en) | 2012-07-11 | 2012-07-11 | Manhole cover for railway tanker car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220334618 CN202754346U (en) | 2012-07-11 | 2012-07-11 | Manhole cover for railway tanker car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202754346U true CN202754346U (en) | 2013-02-27 |
Family
ID=47733542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220334618 Expired - Lifetime CN202754346U (en) | 2012-07-11 | 2012-07-11 | Manhole cover for railway tanker car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202754346U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104401610A (en) * | 2014-11-17 | 2015-03-11 | 一重集团大连设计研究院有限公司 | Self-weight seal oil tank manhole cover |
| CN110654734A (en) * | 2019-10-24 | 2020-01-07 | 徐州科恒奥制冷设备有限公司 | Manhole cover |
-
2012
- 2012-07-11 CN CN 201220334618 patent/CN202754346U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104401610A (en) * | 2014-11-17 | 2015-03-11 | 一重集团大连设计研究院有限公司 | Self-weight seal oil tank manhole cover |
| CN110654734A (en) * | 2019-10-24 | 2020-01-07 | 徐州科恒奥制冷设备有限公司 | Manhole cover |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: Three Town Weiyang District 710086 Shaanxi city of Xi'an Province Patentee after: CRRC XI'AN Co.,Ltd. Address before: 710086 Xi'an City, Shaanxi Province town of three Patentee before: XI' AN RAILWAY TRANSPORTATION EQUIPMENT Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130227 |
|
| CX01 | Expiry of patent term |