CN209927394U - High-precision corrugated pipe ring rigidity testing device - Google Patents
High-precision corrugated pipe ring rigidity testing device Download PDFInfo
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- CN209927394U CN209927394U CN201920840271.6U CN201920840271U CN209927394U CN 209927394 U CN209927394 U CN 209927394U CN 201920840271 U CN201920840271 U CN 201920840271U CN 209927394 U CN209927394 U CN 209927394U
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Abstract
The utility model discloses a high accuracy bellows ring rigidity testing arrangement is applicable to the ring rigidity test of the tubular product of placing on the test machine, the test machine can exert the effort to the tubular product, the device includes the base that sets up in test machine one side, be equipped with a stand on the base, the pivot is equipped with the lever that is mirror image structure setting on the stand, one end of lever extends to be arranged in the tubular product, is equipped with the detection component that is used for detecting its levelness on the other end; and a top block is fixedly arranged on the lever extending into the pipe, and the top block is in point contact with the inner wall of the pipe. The utility model discloses mainly appear: the structure is exquisite, realizes the accurate monitoring to the change of tubular product inner wall, improves the test precision. Structurally, be the point contact between kicking block and the tubular product, when tubular product atress warp, tubular product only can exert the effort to the point with the kicking block contact, can not receive the interference of the power of other directions, improves the accuracy of tubular product ring rigidity testing result.
Description
Technical Field
The utility model relates to a bellows detects technical field, particularly, especially relates to a high accuracy bellows ring rigidity testing arrangement.
Background
A key index in the detection of the corrugated pipe is ring stiffness, which is a comprehensive parameter of the ring stiffness which is the external pressure load resisting capacity of the corrugated pipe, and the ring stiffness is one of the keys in the detection in order to ensure that the corrugated pipe can safely work under the external pressure load. If the loop stiffness of the tubing is too low, the tubing may deform excessively or buckle destabilization may occur. On the contrary, if the ring stiffness is selected too high, an excessively large section moment of inertia is inevitably adopted, which results in too much material and high cost.
In the existing detection technology, a pipe sample is cut out and is subjected to a pressure test on a ring stiffness testing machine. In the pressure test, the circumference of the sample is vertically placed on a workbench of a testing machine, a test sensor is supported in the sample, the sample is slowly pressurized by a pressure plate, and the deformation of the sample is detected by the sensor to calculate the ring stiffness of the sample. However, in the prior art, the ring stiffness of the pipe is usually determined by reading out the change between the outer diameters of the pipes by using a displacement sensor, but the change of the inner diameter of the pipe cannot be tested, so that the test data is often not accurate enough.
Therefore, a high-precision corrugated pipe ring rigidity testing device is urgently needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough of prior art existence, provide a high accuracy bellows ring rigidity testing arrangement.
The purpose of the utility model is realized through the following technical scheme:
a high-precision corrugated pipe ring stiffness testing device is suitable for ring stiffness testing of a pipe placed on a testing machine, the testing machine can apply acting force on the pipe, the device comprises a base arranged on one side of the testing machine, an upright post is arranged on the base, a lever arranged in a mirror image structure is arranged on the upright post in a pivot mode, one end of the lever extends into the pipe, and a detection assembly used for detecting the levelness of the lever is arranged on the other end of the lever; and a top block is fixedly arranged on the lever extending into the pipe, and the top block is in point contact with the inner wall of the pipe.
Preferably, the cross section of the top block is in an isosceles triangle shape.
Preferably, the upright post is sleeved with a sliding sleeve, the sliding sleeve is provided with a bolt hole, and a locking bolt can penetrate through the bolt hole to press the upright post so as to limit the sliding sleeve on the upright post; an extension block is fixedly arranged on the sliding sleeve, a bolt is fixedly arranged on the extension block, the central axis of the bolt is perpendicular to the central axis of the lever, and the lever is sleeved on the bolt in a self-rotating manner.
Preferably, the detection assembly comprises a support column fixedly arranged on the sliding sleeve, a connecting rod is arranged on the support column in a pivot mode, a dial indicator is fixedly arranged at the other end of the connecting rod, and a measuring head of the dial indicator is in contact with the surface of the lever.
The beneficial effects of the utility model are mainly embodied in that: the structure is exquisite, realizes the accurate monitoring to the change of tubular product inner wall, improves the test precision. Structurally, be the point contact between kicking block and the tubular product, when tubular product atress warp, tubular product only can exert the effort to the point with the kicking block contact, can not receive the interference of the power of other directions, improves the accuracy of tubular product ring rigidity testing result. Meanwhile, the inner diameters of the corrugated pipes with different specifications can be measured by adjusting the height of the sliding sleeve, and the device has wide applicability.
Drawings
The technical scheme of the utility model is further explained by combining the attached drawings as follows:
FIG. 1: the structure of the utility model is schematically shown.
Detailed Description
The present invention will be described in detail below with reference to specific embodiments shown in the drawings. However, these embodiments are not limited to the present invention, and structural, method, or functional changes made by those skilled in the art according to these embodiments are all included in the scope of the present invention.
The present invention is not limited to the above embodiments, and structural, methodological, or functional changes made by those skilled in the art according to the embodiments are all included in the scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1, the utility model discloses a high accuracy bellows ring rigidity testing arrangement is applicable to the ring rigidity test of placing tubular product 100 on the test machine (not shown in the figure), the test machine can be right tubular product 100 applys effort F. Currently, it is common in the industry to place the tubing 100 on the table of a testing machine and slowly pressurize the sample with a platen to calculate the loop stiffness of the tubing.
The utility model discloses in, the device is including setting up base 1 of test machine one side, be equipped with a stand 2 on the base 1, the cover is equipped with two sliding sleeves 21 on the stand 2, each be equipped with a bolt hole 22 on the sliding sleeve 21, a locking bolt 23 can run through bolt hole 22 press down in stand 2, will sliding sleeve 21 is spacing on the stand 2. The locking bolt 23 can be screwed to adjust the height of the sliding sleeve, so that the inner diameters of corrugated pipes with different specifications can be measured, and the device has wide applicability.
An extension block 23 is fixedly arranged on the sliding sleeve 21, a bolt 24 is fixedly arranged on the extension block 23, the central axis of the bolt 24 is perpendicular to the central axis of the lever 3, and the lever 3 is rotatably sleeved on the bolt 24. One end of the lever 3 is extended and arranged in the pipe 100, and is extended and arranged in the top block 31 is fixedly arranged on the lever 3 in the pipe 100, the cross section of the top block 31 is isosceles triangle, and of course, the cross section of the top block 31 can be in other shapes and is the protection category of the utility model, which only needs to guarantee that the top block 31 and the inner wall of the pipe 100 can be in point contact. Structurally, be the point contact between kicking block and the tubular product, when tubular product atress warp, tubular product only can exert the effort to the point with the kicking block contact, can not receive the interference of the power of other directions, improves the accuracy of tubular product ring rigidity testing result.
The other end of the lever 3 is provided with a detection component 4 for detecting the levelness of the lever, the detection component 4 comprises a support column 41 fixedly arranged on the sliding sleeve 21, a connecting rod 42 is arranged on the support column 41 in a pivot mode, the other end of the connecting rod 42 is fixedly provided with a dial indicator 43, and a measuring head of the dial indicator 43 is in contact with the surface of the lever 3.
The beneficial effects of the utility model are mainly embodied in that: the structure is exquisite, realizes the accurate monitoring to the change of tubular product inner wall, improves the test precision. Structurally, be the point contact between kicking block and the tubular product, when tubular product atress warp, tubular product only can exert the effort to the point with the kicking block contact, can not receive the interference of the power of other directions, improves the accuracy of tubular product ring rigidity testing result. Meanwhile, the inner diameters of the corrugated pipes with different specifications can be measured by adjusting the height of the sliding sleeve, and the device has wide applicability.
It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.
The above list of details is only for the practical implementation of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the technical spirit of the present invention should be included in the scope of the present invention.
Claims (4)
1. High accuracy bellows ring rigidity testing arrangement is applicable to the ring rigidity test of placing tubular product (100) on the test machine, the test machine can exert effort (F) to tubular product (100), its characterized in that: the device comprises a base (1) arranged on one side of the testing machine, wherein an upright post (2) is arranged on the base (1), a lever (3) arranged in a mirror image structure is arranged on the upright post (2) in a pivot manner, one end of the lever (3) extends into the pipe (100), and a detection assembly (4) for detecting the levelness of the pipe is arranged on the other end of the lever; a top block (31) is fixedly arranged on a lever (3) extending into the pipe (100), and the top block (31) is in point contact with the inner wall of the pipe (100).
2. The high-precision bellows ring rigidity testing device according to claim 1, characterized in that: the cross section of the top block (31) is in an isosceles triangle shape.
3. The high-precision bellows ring rigidity testing device according to claim 2, characterized in that: a sliding sleeve (21) is sleeved on the upright post (2), a bolt hole (22) is formed in the sliding sleeve (21), a locking bolt (23) can penetrate through the bolt hole (22) and is pressed on the upright post (2), and the sliding sleeve (21) is limited on the upright post (2); an extension block (25) is fixedly arranged on the sliding sleeve (21), a bolt (24) is fixedly arranged on the extension block (25), the central axis of the bolt (24) is perpendicular to the central axis of the lever (3), and the lever (3) can be sleeved on the bolt (24) in a rotation manner.
4. A high accuracy bellows ring rigidity testing arrangement according to claim 3, characterized by: the detection assembly (4) comprises a support column (41) fixedly arranged on the sliding sleeve (21), a connecting rod (42) is arranged on the support column (41) in a pivot mode, a dial indicator (43) is fixedly arranged at the other end of the connecting rod (42), and a measuring head of the dial indicator (43) is in surface contact with the lever (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920840271.6U CN209927394U (en) | 2019-06-05 | 2019-06-05 | High-precision corrugated pipe ring rigidity testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920840271.6U CN209927394U (en) | 2019-06-05 | 2019-06-05 | High-precision corrugated pipe ring rigidity testing device |
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| Publication Number | Publication Date |
|---|---|
| CN209927394U true CN209927394U (en) | 2020-01-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920840271.6U Active CN209927394U (en) | 2019-06-05 | 2019-06-05 | High-precision corrugated pipe ring rigidity testing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111458088A (en) * | 2020-03-18 | 2020-07-28 | 福建建利达工程技术有限公司 | Municipal works detect with bellows radial stiffness test equipment |
-
2019
- 2019-06-05 CN CN201920840271.6U patent/CN209927394U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111458088A (en) * | 2020-03-18 | 2020-07-28 | 福建建利达工程技术有限公司 | Municipal works detect with bellows radial stiffness test equipment |
| CN111458088B (en) * | 2020-03-18 | 2021-11-16 | 福建建利达工程技术有限公司 | Municipal works detect with bellows radial stiffness test equipment |
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