CN204459540U - Wedge-type seal flanged joint - Google Patents
Wedge-type seal flanged joint Download PDFInfo
- Publication number
- CN204459540U CN204459540U CN201420806907.2U CN201420806907U CN204459540U CN 204459540 U CN204459540 U CN 204459540U CN 201420806907 U CN201420806907 U CN 201420806907U CN 204459540 U CN204459540 U CN 204459540U
- Authority
- CN
- China
- Prior art keywords
- end cap
- wedge
- flange
- type seal
- hole
- 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.)
- Withdrawn - After Issue
Links
Abstract
A kind of wedge-type seal flanged joint that the utility model relates to, is characterized in that: it comprises flange lower end cap, flange upper end cap, wedge-type seal circle and belleville spring; Flange lower end cap is the disc-shaped structure offering through hole; Its sheathed and solid welding is at the jointing of two Brake pipes; Flange upper end cap top is the hollow cone mesa-shaped structure offering through hole, and bottom is along the outward extending ring flat-plate in circular cone shape structural base edge; Ring flat-plate lower end surface inward flange is provided with stepped groove; Sheathed and solid welding is on Brake pipe by through hole for the top of flange upper end cap, and inner conical surface and the Brake pipe pipe face of flange upper end cap form a ring-type wedge slot; Flange upper end cap and flange lower end cap are bolted connection; Wedge-type seal snare is located at and is inserted in the wedge slot of flange upper end cap on Brake pipe and in one end of wedge shape; Belleville spring is arranged between flange lower end cap and wedge-type seal circle.The utility model, owing to being provided with belleville spring in groove, therefore when wedge-type seal circle produces distortion, can, by the gap between the pressure effect compensation of belleville spring and wedge slot, prevent to reveal.
Description
Technical field
The utility model relates to a kind of Brake pipe joint of railway freight-car, particularly about a kind of wedge-type seal flanged joint.
Background technique
The Brake pipe joint of existing railway freight-car mostly is flange-type and connects, adopt flange-type linkage structure simple, easy to operate, but because the many employings of the sealed member in flange end cap O RunddichtringO seals, therefore the poor easy generation plastic deformation of O RunddichtringO plasticity at low ambient temperatures, and can not compensate because O RunddichtringO limits self structure by material, therefore contact unreal when plastic deformation with the groove in flange end cap, easy generation gap, causes the problem of Brake pipe joint leaks to produce.
Summary of the invention
For the problems referred to above, the purpose of this utility model is to provide a kind of wedge-type seal flanged joint that can carry out auto-compensation.
For achieving the above object, the utility model takes following technological scheme: a kind of wedge-type seal flanged joint, is characterized in that: it comprises a flange lower end cap, a flange upper end cap, a wedge-type seal circle and a belleville spring; Described flange lower end cap is the disc-shaped structure offering a through hole in the middle of, is circumferentially provided with multiple mounting hole uniformly in interval in described through hole periphery; Described flange lower end cap is set in the jointing of two Brake pipes by described through hole, described flange lower end cap and described Brake pipe solid welding; Described flange upper end cap top is the hollow cone mesa-shaped structure offering another through hole in the middle of, and bottom is one along the outward extending ring flat-plate in described circular cone shape structural base edge; On described ring flat-plate, circumferentially interval is provided with described mounting hole on multiple and described flange lower end cap mounting hole relative one by one uniformly; Described ring flat-plate lower end surface inward flange is provided with a stepped groove; Sheathed and solid welding is on described Brake pipe by another through hole described for the top of described flange upper end cap, and inner conical surface and the described Brake pipe pipe face of described flange upper end cap form a ring-type wedge slot; Described flange upper end cap is fastenedly connected by multiple connecting bolt be plugged in corresponding described mounting hole with described flange lower end cap; Described wedge-type seal snare is located at and is inserted in the described wedge slot of described flange upper end cap on described Brake pipe and in one end of wedge shape, the described inner conical surface of described wedge-type seal circle outer surface and described wedge slot is adjacent to, and internal surface is adjacent to mutually with described Brake pipe pipe face; The small end face of described belleville spring contacts with the upper-end surface of described flange lower end cap, and large end face contacts with the bottom surface of described wedge-type seal circle.
Sandwiched one annular flat packing ring between described belleville spring and described wedge-type seal circle.
The utility model is owing to taking above technological scheme, it has the following advantages: 1, the utility model owing to being provided with belleville spring in groove, therefore when wedge-type seal circle produces distortion, the gap that wedge-type seal circle can be made to produce distortion and then compensate between wedge slot by the pressure effect of belleville spring, prevents to reveal.2 the utility model are owing to being arranged to wedge slot by flange upper end cap groove, and therefore wedge-type seal circle better can coordinate with groove, flanged joint sealed more tight.
Accompanying drawing explanation
Fig. 1 is the utility model overall structure schematic diagram.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in detail.
As shown in Figure 1, the utility model comprises flange lower end cap 1, flange upper end cap 2, wedge-type seal circle 3 and a belleville spring 4.
Flange lower end cap 1 is the disc-shaped structure offering a through hole 11 in the middle of, and in through hole 11 periphery, circumferentially interval is provided with multiple mounting hole 12 uniformly.Flange lower end cap 1 is set in the jointing of two Brake pipes 6,7 by through hole 11, flange lower end cap 1 and Brake pipe 6 solid welding.
Flange upper end cap 2 top is the hollow cone mesa-shaped structure 21 offering a through hole 26 in the middle of, and bottom is one along the outward extending ring flat-plate 22 of circular cone shape structure 21 bottom margin.On ring flat-plate 22, circumferentially interval is provided with multiple mounting hole 27 relative one by one with the mounting hole 12 on flange lower end cap 1 uniformly.Ring flat-plate 22 lower end surface inward flange is provided with a stepped groove 23.Sheathed and solid welding is on Brake pipe 7 by through hole 26 for the top of flange upper end cap 2, and its inner conical surface 24 forms a ring-type wedge slot 25 with Brake pipe 7 pipe face.Flange upper end cap 2 is fastenedly connected by multiple connecting bolt 5 be plugged in corresponding mounting hole 12,27 with flange lower end cap 1.
Wedge-type seal circle 3 is set in and is inserted in the wedge slot 25 of flange upper end cap 2 on Brake pipe 7 and in one end of wedge shape, and the inner conical surface 24 of its outer surface and wedge slot 25 is adjacent to, and internal surface is adjacent to mutually with Brake pipe 7 pipe face.
The small end face of belleville spring 4 contacts with the upper-end surface of flange lower end cap 1, and large end face contacts with the bottom surface of wedge-type seal circle 3.
In above-described embodiment, can sandwiched one annular flat packing ring 8 between belleville spring 4 and wedge-type seal circle 3, for increasing the precompression of belleville spring 4 pairs of wedge-type seal circles 3, make wedge-type seal circle 3 seal tighter with flange upper end cap 2 and Brake pipe 7.
The utility model when mounted, certain interval will be left between flange lower end cap 1 and flange upper end cap 2, after reaching setting moment by fastening bolt 5, belleville spring 4 pairs of wedge-type seal circles 3 produce extruding, make wedge-type seal circle 3 produce distortion in wedge slot 25, and then reach the sealing to Brake pipe.
The utility model operationally, when being in low temperature environment, wedge-type seal circle 3 is due to the effect of expanding with heat and contract with cold, make it and seal when producing gap between flange upper end cap 2 and Brake pipe 7, belleville spring 4 can apply pressure to wedge-type seal circle 3, promote wedge-type seal circle 3 to move in wedge slot 25, the gap compensating wedge-type seal circle 3 and produce between flange upper end cap 2 and Brake pipe 7, and then prevent leakage problem from producing.
The various embodiments described above are only for illustration of the utility model; wherein the structure, Placement etc. of each parts all can change to some extent; every equivalents of carrying out on the basis of technical solutions of the utility model and improvement, all should not get rid of outside protection domain of the present utility model.
Claims (2)
1. a wedge-type seal flanged joint, is characterized in that: it comprises a flange lower end cap, a flange upper end cap, a wedge-type seal circle and a belleville spring;
Described flange lower end cap is the disc-shaped structure offering a through hole in the middle of, is circumferentially provided with multiple mounting hole uniformly in interval in described through hole periphery; Described flange lower end cap is set in the jointing of two Brake pipes by described through hole, described flange lower end cap and described Brake pipe solid welding;
Described flange upper end cap top is the hollow cone mesa-shaped structure offering another through hole in the middle of, and bottom is one along the outward extending ring flat-plate in described circular cone shape structural base edge; On described ring flat-plate, circumferentially interval is provided with described mounting hole on multiple and described flange lower end cap mounting hole relative one by one uniformly; Described ring flat-plate lower end surface inward flange is provided with a stepped groove; Sheathed and solid welding is on described Brake pipe by another through hole described for the top of described flange upper end cap, and inner conical surface and the described Brake pipe pipe face of described flange upper end cap form a ring-type wedge slot; Described flange upper end cap is fastenedly connected by multiple connecting bolt be plugged in corresponding described mounting hole with described flange lower end cap;
Described wedge-type seal snare is located at and is inserted in the described wedge slot of described flange upper end cap on described Brake pipe and in one end of wedge shape, the described inner conical surface of described wedge-type seal circle outer surface and described wedge slot is adjacent to, and internal surface is adjacent to mutually with described Brake pipe pipe face;
The small end face of described belleville spring contacts with the upper-end surface of described flange lower end cap, and large end face contacts with the bottom surface of described wedge-type seal circle.
2. wedge-type seal flanged joint as claimed in claim 1, is characterized in that: sandwiched one annular flat packing ring between described belleville spring and described wedge-type seal circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420806907.2U CN204459540U (en) | 2014-12-17 | 2014-12-17 | Wedge-type seal flanged joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420806907.2U CN204459540U (en) | 2014-12-17 | 2014-12-17 | Wedge-type seal flanged joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204459540U true CN204459540U (en) | 2015-07-08 |
Family
ID=53666424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420806907.2U Withdrawn - After Issue CN204459540U (en) | 2014-12-17 | 2014-12-17 | Wedge-type seal flanged joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204459540U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500883A (en) * | 2014-12-17 | 2015-04-08 | 南车二七车辆有限公司 | Wedge-shaped sealing flange connector |
-
2014
- 2014-12-17 CN CN201420806907.2U patent/CN204459540U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500883A (en) * | 2014-12-17 | 2015-04-08 | 南车二七车辆有限公司 | Wedge-shaped sealing flange connector |
| CN104500883B (en) * | 2014-12-17 | 2016-03-23 | 南车二七车辆有限公司 | A kind of wedge-type seal flanged joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150708 Effective date of abandoning: 20160323 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |