CN219224357U

CN219224357U - Flexible pipe fatigue test device

Info

Publication number: CN219224357U
Application number: CN202223275415.9U
Authority: CN
Inventors: 赵宝宏; 卢正竹; 牛鹏; 江民; 刘叶
Original assignee: Qingdao Sifang Alstom Railway Transportation Equipment Co ltd
Current assignee: Qingdao Sifang Alstom Railway Transportation Equipment Co ltd
Priority date: 2022-12-06
Filing date: 2022-12-06
Publication date: 2023-06-20
Anticipated expiration: 2032-12-06

Abstract

The utility model discloses a flexible pipe fatigue test device, which relates to the field of detection equipment, and the technical scheme is that the flexible pipe fatigue test device comprises a first connecting part which is connected with a clamp of a fatigue tester to form a connecting structure between the fatigue tester and a second connecting part; the second connecting part is fixedly connected with the first connecting part and reserves the installation position of the pipe connecting piece; the two ends of each flexible pipe are respectively provided with one pipe connecting piece, and the two pipe connecting pieces at the two ends of the same flexible pipe are respectively connected with a second connecting part. The utility model has the beneficial effects that the structure is simple, and a plurality of flexible pipes can be detected simultaneously by combining fatigue testing equipment. And the flexible pipe body of multiple different pipe diameters can be matched to combine the pipe connecting piece structure of this scheme. And combining different mounting positions of the second connecting part, and enabling the end part of the flexible pipe to be bent at the detection moment, so that the end part of the flexible pipe is closer to the actual use state of the flexible pipe, and a better detection result is obtained.

Description

Flexible pipe fatigue test device

Technical Field

The utility model relates to the field of detection, in particular to a flexible pipe fatigue test device.

Background

Along with the high-speed development of domestic high-speed rail vehicle technology, the speed of the vehicle is faster and faster, and the variety and the number of vehicle-mounted equipment are also increased. The protection requirements for vehicle cables are also becoming more stringent.

The cable protection of the existing motor train unit, in particular to the multi-purpose flexible line tube protection of the cable outside the external line slot, the material is mainly made of flexible materials such as plastic or rubber, and the metal hose is partially used. During operation of the vehicle, the spool partially mounted in the moving area may inevitably have a swinging and telescoping condition. The conduit is susceptible to fatigue aging over long periods of operation and exposure to harsh environments. Therefore, the fatigue test is needed to be carried out on the line pipe to test the fatigue resistance of the line pipe, so that the line pipe can be replaced in time before ageing, and accidents are avoided. But currently there is a lack of tools that can fatigue test flexible pipes.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a flexible pipe fatigue test device, which solves the problem that a fixture is lacking when a flexible pipe is subjected to fatigue test.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a flexible pipe fatigue test device comprises a flexible pipe,

the first connecting part is connected with the clamp of the fatigue testing machine to form a connecting structure between the fatigue testing machine and the second connecting part;

the second connecting part is fixedly connected with the first connecting part and reserves the installation position of the pipe connecting piece;

the first connecting part and the second connecting part are respectively provided with two groups corresponding to the two ends of the relative motion of the fatigue testing machine, and also comprise,

and two pipe connecting pieces at two ends of the same flexible pipe are respectively connected with one second connecting part.

Preferably, the first connecting portions are rectangular blocks, and each first connecting portion is connected with a plurality of second connecting portions.

Preferably, the second connection part includes,

the middle plate is fixedly connected with the first connecting part;

the vertical plates are positioned at two sides of the middle plate and are fixedly connected with the middle plate;

and the middle plate and the vertical plate are respectively provided with a mounting hole group, and the second connecting part is fixedly connected with the pipe connecting piece through the mounting hole groups.

Preferably, the mounting hole group comprises a round hole and a long round hole.

Preferably, each mounting hole group comprises a plurality of round holes and oblong holes;

the round holes are positioned at two ends of the oblong holes.

Preferably, the center of the round hole in each mounting hole group is on the same straight line with the center line of the long round hole;

at least one mounting hole group is arranged on the vertical plate, and at least two mounting hole groups are arranged on the middle plate.

Preferably, the pipe connection comprises, in combination,

the hoop body part is used for forming a cylindrical hoop body and fixedly connecting with the pipe body of the flexible pipe;

fixing parts arranged at two ends of the hoop body part and provided with mounting holes;

the pipe connecting piece is fixedly connected with the second connecting part through the fixing part.

Preferably, the collar body is made of a flexible material and the securing portion is made of a rigid material.

Preferably, the fixing part is fixedly connected with the end part of the hoop body part through an inserting sheet at one end;

the inserting piece of the fixing part at one end part of the same hoop body part is a straight piece body, and the inserting piece of the other fixing part is a bending piece.

Preferably, the first connecting portion and the second connecting portion are fixedly connected with one side of the middle plate facing the vertical plate.

Compared with the prior art, the method has the following beneficial effects: the scheme has simple structure and can be combined with fatigue testing equipment to detect a plurality of flexible pipes simultaneously. And the flexible pipe body of multiple different pipe diameters can be matched to combine the pipe connecting piece structure of this scheme. And combining different mounting positions of the second connecting part, and enabling the end part of the flexible pipe to be bent at the detection moment, so that the end part of the flexible pipe is closer to the actual use state of the flexible pipe, and a better detection result is obtained.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present utility model;

FIG. 2 is a schematic diagram of the overall structure of a second embodiment of the present utility model;

FIG. 3 is an enlarged view of part of A of FIG. 2;

fig. 4 is a schematic view of a pipe coupling.

In the figure:

100. a flexible tube; 1. a first connection portion; 2. a second connecting portion; 3. a pipe connection; 31. a hoop body; 32. a fixing part; 41. a round hole; 42. and a slotted hole.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

Referring to fig. 1-3, the present utility model provides the following technical solutions:

the utility model provides a flexible pipe fatigue test device, includes first connecting portion 1 and second connecting portion 2, and first connecting portion 1 is rectangular block, is connected with fatigue testing machine's anchor clamps, forms the mechanical interface that connects usefulness between fatigue testing machine and the second connecting portion 2; the second connecting part 2 is fixedly connected with the first connecting part 1, the installation position of the pipe connecting piece 3 is reserved, and the pipe connecting piece 3 is arranged on the installation position; the first connecting part 1 and the second connecting part 2 are respectively provided with two groups corresponding to two ends of the fatigue testing machine, two ends of each flexible pipe 100 are respectively provided with a pipe connecting piece, and two pipe connecting pieces 3 at two ends of the same flexible pipe 100 are respectively connected with one second connecting part 2.

When the flexible pipe is used, two ends of the flexible pipe 100 are respectively fixed on the pipe connecting piece 3, then the pipe connecting piece 3 is connected with the second connecting part 2, the first connecting part 1 and a clamp of fatigue test equipment are fixed, the fatigue test equipment is started, and the fatigue test work of the flexible pipe can be performed.

Further, the second connecting part 2 comprises a middle plate and a vertical plate, and the middle plate is fixedly connected with the first connecting part 1; the vertical plates are positioned at two sides of the middle plate and are fixedly connected with the middle plate; the second connecting part 2 at the upper part is arranged in a U shape when in use, and the second connecting part 2 at the lower part is arranged in an n shape when in use. The middle plate and the vertical plate are respectively provided with a mounting hole group, and the second connecting part 2 is fixedly connected with the pipe connecting piece 3 through the mounting hole groups.

The mounting hole group comprises a round hole 41 and a long round hole 42, and the long round hole 42 can be used as a mounting reserved hole of the expansion assembly. The round hole 42 can serve as a weight reduction function, and can be matched with different pipe clamps or tubular auxiliary positioning pieces. Each mounting hole group comprises two oblong holes 42, the two oblong holes 42 are arranged side by side on the same straight line, a round hole 41 is arranged between the two oblong holes 42, and two ends of each oblong hole 42 are respectively provided with a round hole 41.

A mounting hole group is arranged on the vertical plate, and two mounting hole groups are arranged on the middle plate. The middle part of the middle plate is reserved with a mounting area of the first connecting part 1, and the mounting hole groups of the middle plate are positioned on two sides of the mounting area.

The pipe connector 3 comprises a hoop body 31 and a fixing part 32, wherein the hoop body 31 forms a cylindrical hoop body and is used for fixedly connecting with the pipe body of the flexible pipe 100; fixing portions 32 provided at both ends of the collar body 31, on which mounting holes are opened; the pipe connector 3 is fixedly connected with the second connecting portion 2 by a fixing portion 32. The hoop body 31 is made of a flexible material and the fixing portion 32 is made of a rigid material.

When in use, the hoop body 31 is bent into a cylinder shape, then bolts are used to pass through the mounting holes on the two fixing parts 32, and then the bolts are connected with the round holes 41 or the oblong holes 42 of the second connecting part 2, so that the combination can be completed.

The fixing part 32 is fixedly connected with the end part of the hoop body part 31 through an inserting sheet at one end; the insertion piece of the fixing portion 32 at one end of the same hoop body 31 is a straight piece, and the insertion piece of the other fixing portion 32 is a bending piece. The two tabs are combined in this fashion, see fig. 4, to allow for easier bending of the cuff body 31 for ease of use.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A flexible pipe fatigue test device is characterized by comprising,

the first connecting part (1) is connected with a clamp of the fatigue testing machine to form a connecting structure between the fatigue testing machine and the second connecting part (2);

the second connecting part (2) is fixedly connected with the first connecting part (1) and reserves the installation position of the pipe connecting piece (3);

the first connecting part (1) and the second connecting part (2) are respectively provided with two groups corresponding to the two ends of the relative motion of the fatigue testing machine, and also comprise,

the two ends of each flexible pipe (100) are respectively provided with one pipe connecting piece (3), and the two pipe connecting pieces (3) at the two ends of the same flexible pipe (100) are respectively connected with one second connecting part (2).

2. The flexible pipe fatigue testing device according to claim 1, wherein the first connection parts (1) are rectangular blocks, and each first connection part (1) is connected with a plurality of second connection parts (2).

3. The flexible pipe fatigue testing device according to claim 2, wherein the second connection part (2) comprises,

the middle plate is fixedly connected with the first connecting part (1);

and the middle plate and the vertical plate are respectively provided with a mounting hole group, and the second connecting part (2) is fixedly connected with the pipe connecting piece (3) through the mounting hole groups.

4. A flexible pipe fatigue testing device according to claim 3, wherein the set of mounting holes comprises a circular hole (41) and a slotted hole (42).

5. The flexible pipe fatigue testing device according to claim 4, wherein each of the mounting hole sets comprises a plurality of circular holes (41) and oblong holes (42);

the round holes (41) are positioned at two ends of the oblong holes (42).

6. The flexible pipe fatigue test apparatus as claimed in claim 5, wherein the center of the circular hole (41) and the center line of the oblong hole (42) in each of the mounting hole groups are on the same straight line;

7. A flexible pipe fatigue test apparatus according to claim 4, wherein the pipe connection (3) comprises,

a collar body part (31) forming a tubular collar body for fastening a tube body of a flexible tube (100);

fixing parts (32) arranged at two ends of the hoop body part (31) and provided with mounting holes;

the pipe connecting piece (3) is fixedly connected with the second connecting part (2) through the fixing part (32).

8. A flexible pipe fatigue testing device according to claim 7, wherein the collar body (31) is made of a flexible material and the securing portion (32) is made of a rigid material.

9. The flexible pipe fatigue test device according to claim 8, wherein the fixing portion (32) is fixedly connected with the end portion of the hoop body portion (31) through an insert at one end;

the inserting piece of the fixing part (32) at one end part of the same hoop body part (31) is a straight piece body, and the inserting piece of the other fixing part (32) is a bending piece.

10. A flexible pipe fatigue testing device according to claim 3, wherein the first connecting portion (1) and the second connecting portion (2) are fixedly connected at a side of the middle plate facing the vertical plate.