Rapid flatness detection device

Abstract

The utility model discloses a rapid flatness detection device which comprises an upper pressing plate and a bottom plate, the rear end of the upper pressing plate is connected with a pressing rod, the front end of the upper pressing plate is connected with the front end of the bottom plate through a connecting part, the rear end of the bottom plate is provided with a pressure stopping part, and when the upper pressing plate is pressed downwards to be in contact with the pressure stopping part on the bottom plate, the upper pressing plate is parallel to the bottom plate. The device is used for rapid detection in the pipe production process, can adapt to different pipe specifications, does not need manual visual inspection in the detection process, and is simple in structure, low in manufacturing cost, light in weight and convenient to carry.

Description

Technical Field

[0001] The utility model relates to the field of flatness detection devices, and more specifically, to a rapid flatness detection device. Background Art

[0002] Flatness testing of pipes is typically performed using a specialized flatness tester or integrated mechanical testing system. The testing equipment compresses the specimen to 50% of its original outer diameter through precisely controlled radial compression, then releases the pressure. If the specimen is free of cracks or damage, it is deemed qualified; otherwise, it is deemed unqualified. Current mainstream flatness testers and integrated mechanical testing systems integrate advanced control technology, but due to their large size, weight, and high cost, they are primarily suitable for laboratory environments. Due to their size and weight limitations, these devices are difficult to use on the production floor and cannot meet the needs of fast and convenient quality testing in the workshop.

[0003] Prior art publication number CN202533332U discloses a portable flattening tester that uses a jack to flatten pipes. However, the outer diameter of common pipes is less than 200 mm, so flattening does not require the high pressure of a jack. Furthermore, the lifting speed of the jack during flattening is slow, making it inefficient. Furthermore, the jack needs to observe the scale line and unload the load immediately when the sample reaches 50% of the outer diameter. This process relies solely on visual observation, which cannot guarantee the exact compression amount and is therefore not very accurate. Utility Model Content

[0004] The utility model provides a rapid flatness detection device to overcome the problems of the flatness tester in the prior art, such as being bulky, heavy, inconvenient to carry, expensive and having low accuracy.

[0005] The technical solution of the utility model is as follows:

[0006] The utility model provides a rapid flatness detection device, comprising: an upper pressing plate and a bottom plate, wherein the rear end of the upper pressing plate is connected to a pressing rod, and the front end is connected to the front end of the bottom plate through a connecting portion, and a pressure stop portion is provided at the rear end of the bottom plate. When the upper pressing plate is pressed down to contact the pressure stop portion on the bottom plate, the upper pressing plate is parallel to the bottom plate.

[0007] Furthermore, the connecting part includes two parallel connecting holes at the front end of the upper pressure plate, a pair of ear plates at the front end of the bottom plate, long bolts and nuts, the through holes on the ear plates are coaxial with the connecting holes of the upper pressure plate, the spacing between the ear plates is greater than the spacing between the connecting holes of the upper pressure plate, and the long bolts are fixed with nuts after passing through the through holes of the ear plates and the connecting holes of the upper pressure plate.

[0008] Furthermore, the pressure stop portion includes a pair of ear plates at the rear end of the base plate, long bolts and nuts. The height of the through holes on the ear plates at the rear end of the base plate is lower than the height of the through holes on the front end of the ear plates from the base plate. The long bolts pass through the through holes of the ear plates and are fixed with nuts.

[0009] Furthermore, the front ear plate and the rear ear plate are configured as a detachable and replaceable L-shaped structure, and a groove is provided at the corresponding bottom plate to fit with the lower part of the L-shaped structure.

[0010] Furthermore, a plurality of parallel through holes may be provided on the front end ear plate and the rear end ear plate according to different outer diameters of the pipes.

[0011] Furthermore, the distance between the front end ear plate on the bottom plate and the front end edge of the bottom plate is greater than the distance between the rear end ear plate and the rear end edge of the bottom plate.

[0012] Furthermore, screw holes are provided between the front end ear plate and the front end edge of the bottom plate.

[0013] Furthermore, the thickness of the bottom plate is greater than the thickness of the upper pressing plate.

[0014] Furthermore, the pressure rod is connected to the upper pressure plate by welding, and the diameter of the pressure rod is less than or equal to the thickness of the upper pressure plate.

[0015] Furthermore, a handle is provided on the pressure rod.

[0016] Compared with the prior art, the beneficial effects of the technical solution of the utility model are:

[0017] The utility model provides a rapid flatness detection device, which is used for rapid detection in the production process and can adapt to different pipe specifications. The detection process does not need to rely on manual visual observation, has a simple structure, low cost, light weight, and is easy to carry. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic structural diagram of a rapid flatness detection device provided in this embodiment;

[0019] Figure 2 A schematic diagram of the improved structure of a rapid flatness detection device provided in this embodiment;

[0020] Figure 3 A schematic diagram of a detachable ear plate and bottom plate groove of a rapid flat detection device provided in this embodiment;

[0021] Figure 4 A schematic diagram of the ear plate through-hole of a rapid flat detection device provided in this embodiment;

[0022] In the figure, 1-upper pressure plate; 2-pressure rod; 3-bottom plate; 4-front end long bolt; 5-front end ear plate; 6-rear end ear plate; 7-rear end long bolt; 8-connecting part; 9-pressure stop part; 10-screw hole; 51-DN160mm pipe connecting part ear plate through hole; 61-DN160mm pipe pressure stop part ear plate through hole; 52-DN110mm pipe connecting part ear plate through hole; 62-DN110mm pipe pressure stop part ear plate through hole; 53-DN75mm pipe connecting part ear plate through hole; 63-DN75mm pipe pressure stop part ear plate through hole. DETAILED DESCRIPTION

[0023] The accompanying drawings are for illustrative purposes only and are not to be construed as limiting this patent;

[0024] In order to better illustrate this embodiment, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product size;

[0025] It is understandable to those skilled in the art that some well-known structures and descriptions thereof may be omitted in the drawings.

[0026] The technical solution of the present utility model is further described below with reference to the accompanying drawings and embodiments.

[0027] like Figure 1 The figure shows a schematic structural diagram of a rapid flatness detection device provided in this embodiment, which comprises an upper pressure plate 1 and a bottom plate 3. The rear end of the upper pressure plate 1 is connected to the pressure rod 2, and the front end is connected to the front end of the bottom plate 3 through a connecting portion 8. A pressure stop portion 9 is provided at the rear end of the bottom plate 3. When the upper pressure plate 1 is pressed down until it contacts the pressure stop portion 9, the upper pressure plate 1 is parallel to the bottom plate 3.

[0028] During use, place the pipe to be inspected between the bottom plate connection portion 8 and the pressure stop portion 9. Use the pressure rod 2 to drive the upper pressure plate 1 downward. Stop pressing when it contacts the pressure stop portion 9 on the bottom plate to inspect the pipe for damage. It should be noted that when the upper pressure plate 1 is pressed down to contact the pressure stop portion 9, it must remain parallel to the bottom plate 3. When they are parallel, the height between the upper pressure plate 1 and the bottom plate 3 needs to be set according to the pipe diameter. In a specific embodiment, if the pipe diameter is DN75mm, then when the upper pressure plate 1 is pressed down to contact the pressure stop portion 9, the distance between the upper pressure plate 1 and the bottom plate 3 is 37.5mm.

[0029] Furthermore, the connecting part 8 includes two parallel connecting holes at the front end of the upper pressure plate 1, a pair of front end ear plates 5 at the front end of the base plate 3, a front end long bolt 4 and a nut, the through hole on the front end ear plate 5 is coaxial with the connecting hole of the upper pressure plate 1, the spacing between the ear plates 5 is greater than the spacing between the connecting holes of the upper pressure plate 1, and the front end long bolt 4 is fixed with a nut after passing through the through hole of the front end ear plate 5 and the connecting hole of the upper pressure plate 1.

[0030] Furthermore, the pressure stop portion 9 includes a pair of rear end ear plates 6 at the rear end of the base plate 3, a rear end long bolt 7 and a nut. The height of the through hole on the rear end ear plate 6 at the rear end of the base plate 3 is lower than the height of the through hole on the front end ear plate 5 from the base plate. The rear end long bolt 7 passes through the through hole of the rear end ear plate 6 and is fixed with a nut.

[0031] Furthermore, the front ear plate 5 and the rear ear plate 6 are configured as a removable and replaceable L-shaped structure, and the corresponding bottom plate 3 is provided with a groove that fits with the lower part of the L-shaped structure. The front ear plate 5 and the rear ear plate 6 can be provided with a plurality of parallel through holes according to different pipe diameters, such as Figure 3 shown.

[0032] In a specific embodiment, the radius of the ear plate through hole is 5 mm, and special connecting through holes are set according to the commonly used DN75mm, DN110mm, and DN160mm pipes. The corresponding sizes are as follows: Figure 4 If testing a DN160mm pipe, use through holes 51 and 61 for assembly; if testing a DN110mm pipe, use through holes 52 and 62 for assembly; if testing a DN75mm pipe, use through holes 53 and 63 for assembly. For easier identification and use, the corresponding pipe model and the front and rear end lug positions can be marked next to the lug holes.

[0033] Furthermore, the distance between the front end ear plate 5 and the front end edge of the bottom plate 3 is greater than the distance between the rear end ear plate 6 and the rear end edge of the bottom plate 3. This distance is reserved for the convenience of fixing the device when in use. A heavy object can be placed on the front end of the bottom plate to press it down, or a screw hole 10 can be set to fix the bottom plate to the ground with screws. The structure is as follows: Figure 2 shown.

[0034] Furthermore, the thickness of the bottom plate 3 is greater than that of the upper pressure plate 1. In a specific embodiment, the thickness of the bottom plate is set to 40 mm, the thickness of the upper pressure plate is set to 20 mm, the pressure rod 2 is connected to the upper pressure plate 1 by welding, the diameter of the pressure rod 2 is less than or equal to the thickness of the upper pressure plate 1, and the upper pressure plate 1, the bottom plate 3 and the pressure rod 2 are all made of steel plates.

[0035] Furthermore, the pressure rod 2 is provided with an anti-slip handle.

[0036] The same or similar reference numerals correspond to the same or similar components;

[0037] The terms used in the drawings to describe positional relationships are for illustrative purposes only and should not be construed as limiting this patent;

[0038] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. A person skilled in the art will be able to make other variations or modifications based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A rapid flatness detection device, comprising an upper pressing plate (1) and a bottom plate (3), characterized in that: The rear end of the upper pressing plate (1) is connected to the pressing rod (2), and the front end is connected to the front end of the bottom plate (3) through a connecting portion (8). A pressure stop portion (9) is provided at the rear end of the bottom plate (3). When the upper pressing plate (1) is pressed down until it contacts the pressure stop portion (9), the upper pressing plate (1) and the bottom plate (3) are parallel.

2. A rapid flatness detection device according to claim 1, characterized in that: The connecting portion (8) comprises two parallel connecting holes at the front end of the upper pressure plate (1), a pair of front end ear plates (5) at the front end of the bottom plate (3), a front end long bolt (4) and a nut, the through hole on the front end ear plate (5) is coaxial with the connecting hole of the upper pressure plate (1), the spacing between the front end ear plates (5) is greater than the spacing between the connecting holes of the upper pressure plate (1), and the front end long bolt (4) is fixed by a nut after passing through the through hole of the front end ear plate (5) and the connecting hole of the upper pressure plate (1).

3. A rapid flatness detection device according to claim 1, characterized in that: The pressure-stopping portion (9) comprises a pair of rear end ear plates (6) at the rear end of the base plate (3), a rear end long bolt (7) and a nut. The height of the through hole of the rear end ear plate (6) at the rear end of the base plate (3) from the base plate is lower than the height of the through hole of the front end ear plate (5) from the base plate. The rear end long bolt (7) passes through the through hole of the rear end ear plate (6) and is fixed by a nut.

4. A rapid flatness detection device according to claim 2 or 3, characterized in that: The front end ear plate (5) and the rear end ear plate (6) are configured as detachable and replaceable L-shaped structures, and a groove is provided at the corresponding bottom plate (3) to fit with the lower part of the L-shaped structure.

5. A rapid flatness detection device according to claim 2 or 3, characterized in that: The front end ear plate (5) and the rear end ear plate (6) can be provided with a plurality of parallel through holes according to different outer diameters of the pipes.

6. A rapid flatness detection device according to claim 2 or 3, characterized in that: The distance between the front end ear plate (5) on the bottom plate (3) and the front end edge of the bottom plate (3) is greater than the distance between the rear end ear plate (6) and the rear end edge of the bottom plate (3).

7. A rapid flatness detection device according to claim 2, characterized in that: A screw hole (10) is provided between the front end ear plate (5) and the front end edge of the bottom plate (3).

8. The rapid flatness detection device according to claim 1, characterized in that: The thickness of the bottom plate (3) is greater than the thickness of the upper pressing plate (1).

9. The rapid flatness detection device according to claim 1, characterized in that: The pressure rod (2) is connected to the upper pressure plate (1) by welding, and the diameter of the pressure rod (2) is less than or equal to the thickness of the upper pressure plate (1).

10. The rapid flatness detection device according to claim 1, characterized in that: The pressure rod (2) is also provided with a handle.

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