CN215263261U - Portable assessment ruler - Google Patents
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- CN215263261U CN215263261U CN202121369401.6U CN202121369401U CN215263261U CN 215263261 U CN215263261 U CN 215263261U CN 202121369401 U CN202121369401 U CN 202121369401U CN 215263261 U CN215263261 U CN 215263261U
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Abstract
The utility model discloses a portable scale, which mainly relates to the field of nondestructive testing; comprises a rectangular main ruler, a first auxiliary ruler and a second auxiliary ruler; the second auxiliary ruler and the first auxiliary ruler are both connected with the rectangular main ruler in a sliding manner; the rectangular main ruler is provided with an inverse proportion curve groove, a linkage key pin is arranged in the inverse proportion curve groove, the linkage key pin is connected with the inverse proportion curve groove in a sliding mode, a first waist-shaped hole matched with the linkage key pin is formed in the first auxiliary ruler along the length direction of the first auxiliary ruler, a second waist-shaped hole matched with the linkage key pin is formed in the second auxiliary ruler along the length direction of the second auxiliary ruler, and the linkage key pin sequentially penetrates through the second waist-shaped hole and the first waist-shaped hole from top to bottom and then is inserted into the inverse proportion curve groove; the utility model discloses improved nondestructive test personnel's detection work link, improved work efficiency, improved the degree of accuracy of magnetic, infiltration detection.
Description
Technical Field
The utility model relates to a nondestructive test field specifically is a portable rule of appraising.
Background
The safe use of the special equipment is critical to the national civilization, and the inspection and detection work of the special equipment is an important technical guarantee for guaranteeing the safe and stable operation of the special equipment. The magnetic particle detection and the penetration detection are the most important nondestructive detection technologies and are widely applied to the inspection and detection process of the special equipment. In the magnetic particle detection and the penetration detection process, the detected parts are scientifically and accurately graded in quality according to relevant national standard specifications, which is the premise of ensuring the effective development of the magnetic particle and penetration detection work.
At present, according to NB/T47013.4-2015 No. 4 of nondestructive testing of pressure bearing equipment: the magnetic particle inspection standard relates to a circular defect magnetic particle evaluation frame concept with adjustable side length and constant area in the quality grading application process when other parts except a welding line are subjected to magnetic particle inspection. Namely: "area 2500 mm" as set forth in the evaluation of magnetic marks for circular defects2Evaluation box of (2), one of the momentsThe maximum side length of the rectangular frame is 150mm, the execution is difficult in the actual detection process of a detection field, and detection personnel need to repeatedly define rectangular frames with different side lengths on the magnetic powder detection field to simultaneously meet the requirement of area fixation (2500 mm)2) And the condition that the circular defect magnetic traces are contained within the rectangular frame; also in NB/T47013.5-2015 No. 5 of bearing equipment nondestructive testing: the idea is also applied to quality grading of other parts except for welding seams in the standard of penetration testing. In the production practice process, the field detection personnel have large workload and low efficiency, and the grading error is easily caused by human negligence in the process of marking the evaluation frame on the field, thereby bringing adverse consequences to the detection work of special equipment.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to solve the problem that exists among the prior art, provide a portable rule of appraising, improved nondestructive test personnel's detection work link, improved work efficiency, improved the degree of accuracy that magnetic, infiltration detected.
The utility model discloses a realize above-mentioned purpose, realize through following technical scheme:
a portable scale comprises a rectangular main scale, a first auxiliary scale and a second auxiliary scale, wherein the second auxiliary scale is perpendicular to the first auxiliary scale, the length direction of the first auxiliary scale is parallel to the length direction of the rectangular main scale, and the length direction of the second auxiliary scale is parallel to the width direction of the rectangular main scale;
the first auxiliary ruler is positioned on the upper side of the rectangular main ruler, the second auxiliary ruler is positioned on the upper side of the first auxiliary ruler, and the second auxiliary ruler and the first auxiliary ruler are both in sliding connection with the rectangular main ruler;
the rectangular main ruler is provided with an inverse proportion curve groove, a linkage key pin is arranged in the inverse proportion curve groove, the linkage key pin is connected with the inverse proportion curve groove in a sliding mode, a first waist-shaped hole matched with the linkage key pin is formed in the first auxiliary ruler in the length direction of the first auxiliary ruler, a second waist-shaped hole matched with the linkage key pin is formed in the second auxiliary ruler in the length direction of the second auxiliary ruler, and the linkage key pin sequentially penetrates through the second waist-shaped hole and the first waist-shaped hole from top to bottom and then is inserted into the inverse proportion curve groove.
Preferably, both ends of the first auxiliary ruler are provided with first sliding blocks, and both ends of the second auxiliary ruler are provided with second sliding blocks.
Preferably, the function of the center line of the inverse proportional curve slot is
In mm.
Preferably, the distance between the right lower end part of the inverse proportion curve slot and the left end surface of the rectangular main scale is 150 mm; the distance between the upper left end of the inverse proportion curve groove and the lower end face of the rectangular main scale is 150 mm.
Preferably, the bottom of the linkage key pin is provided with a limiting plate, the lower side of the inverse proportion curve groove is provided with a sliding groove matched with the limiting plate, and the top of the linkage key pin is provided with a locking nut matched with the second waist-shaped hole.
Contrast prior art, the beneficial effects of the utility model reside in that:
the utility model utilizes the characteristics of the inverse proportional function to effectively combine the detection evaluation requirement with the inverse proportional function curve to form an evaluation detection ruler with adjustable arbitrary side length and fixed area; when the magnetic powder infiltration detection device is used, the positions of the second auxiliary ruler and the first auxiliary ruler can be adjusted by adjusting the positions of the linkage key pins in the inverse proportion curve grooves, the evaluation frame with the fixed area is formed on the rectangular main ruler, the evaluation frame with the fixed area and different side lengths is not required to be repeatedly drawn on site by detection personnel in the process of infiltration detection aiming at the magnetic powder needing to be applied to the type of the evaluation frame with the fixed area, the requirements of fixed area and adjustable side length of the evaluation frame can be met simultaneously, the operation is convenient and simple, the accuracy is high, the carrying is convenient, the operation steps of detection personnel can be greatly saved, and the detection efficiency is greatly improved.
Drawings
Fig. 1 is a top view of the present invention;
FIG. 2 is a schematic view of a connection structure between a rectangular main ruler and a first auxiliary ruler;
FIG. 3 is a schematic diagram of the linkage key pin structure.
The reference numbers in the drawings: 1. a rectangular main scale; 2. a first auxiliary scale; 21. a first kidney-shaped hole; 22. a first slider; 3. a second minor rule; 31. a second kidney-shaped hole; 32. a second slider; 4. an inverse proportion curve slot; 5. a linkage key pin; 51. a limiting plate; 52. and locking the nut.
Detailed Description
The present invention will be further described with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope defined in the present application.
Example (b): as shown in fig. 1-3, the present invention relates to a portable scale, which comprises a rectangular main scale 1, a first auxiliary scale 2, and a second auxiliary scale 3, wherein the second auxiliary scale 3 is perpendicular to the first auxiliary scale 2, the length direction of the first auxiliary scale 2 is parallel to the length direction of the rectangular main scale 1, and the length direction of the second auxiliary scale 3 is parallel to the width direction of the rectangular main scale 1;
the first auxiliary ruler 2 is positioned on the upper side of the rectangular main ruler 1, the second auxiliary ruler 3 is positioned on the upper side of the first auxiliary ruler 2, and the second auxiliary ruler 3 and the first auxiliary ruler 2 are both in sliding connection with the rectangular main ruler 1;
preferably, in order to ensure the stability of the second auxiliary ruler and the first auxiliary ruler sliding on the rectangular main ruler, the two ends of the first auxiliary ruler 2 are both provided with the first sliding blocks 22, the rectangular main ruler 1 is provided with the first sliding grooves adapted to the first sliding blocks 22, the two ends of the second auxiliary ruler 3 are both provided with the second sliding blocks 32, the rectangular main ruler 1 is provided with the second sliding grooves adapted to the second sliding blocks 32, specifically, as shown in fig. 2, the first sliding blocks 22 are U-shaped, the first sliding grooves are grooves formed in the outer wall of the rectangular main ruler 1, and the second sliding blocks 32 are identical to the first sliding blocks 22 in structure.
The rectangular main ruler 1 is provided with an inverse proportion curve groove 4, a linkage key pin 5 is arranged in the inverse proportion curve groove 4, the linkage key pin 5 is connected with the inverse proportion curve groove 4 in a sliding mode, a first waist-shaped hole 21 matched with the linkage key pin 5 is formed in the first auxiliary ruler 2 in the length direction of the first auxiliary ruler 2, the linkage key pin 5 can slide in the first waist-shaped hole 21, a second waist-shaped hole 31 matched with the linkage key pin 5 is formed in the second auxiliary ruler 3 in the length direction of the second auxiliary ruler 3, the linkage key pin 5 can slide in the second waist-shaped hole 31, and the linkage key pin 5 sequentially penetrates through the second waist-shaped hole 31 and the first waist-shaped hole 21 from top to bottom and then is inserted into the inverse proportion curve groove 4.
Preferably, in order to meet the requirement of the existing detection standard, as shown in fig. 1, the projection line of the lower side surface of the rectangular main scale 1 is taken as the x axis, the projection line of the left side surface of the rectangular main scale 1 is taken as the y axis, and the functional formula of the central line of the inverse proportion curve groove 4 is
The unit is mm, and the area of the left lower corner enclosed by the edges of the first auxiliary ruler 2, the second auxiliary ruler 3 and the rectangular main ruler 1 in the attached drawing 1 can be ensured to be 2500mm22500mm if the standard is detected2When the verification frame is modified to other values, 2500 in the formula is replaced by the corresponding value.
Preferably, as shown in fig. 1, in order to meet the detection requirement of the side length range (the maximum value of the side length is 150mm) of the detection frame, the distance between the lower right end of the inverse proportion curve slot 4 and the left end face of the rectangular main scale 1 is 150 mm; the distance between the upper left end of the inverse proportion curve slot 4 and the lower end face of the rectangular main scale 1 is 150mm, so that the maximum value of any side length of the rectangle surrounded by the rectangular main scale, the first auxiliary scale and the second auxiliary scale is 150 mm.
Preferably, in order to guarantee the utility model discloses stability during the use, the bottom of linkage key pin 5 is equipped with limiting plate 51, the 4 downside of inverse proportion curve groove is equipped with the spout that suits with limiting plate 51, the top of linkage key pin 5 is equipped with the lock nut 52 that suits with second waist type hole 31, screws up lock nut 52 and can lock the relative position between rectangle main scale 1, first auxiliary scale 2 and the vice chi 3 of second, guarantees the stability when using.
The utility model utilizes the characteristics of the inverse proportional function to effectively combine the detection evaluation requirement with the inverse proportional function curve to form an evaluation detection ruler with adjustable arbitrary side length and fixed area; when the magnetic powder infiltration detection device is used, the position of the linkage key pin 5 in the inverse proportion curve groove 4 is adjusted, namely, the second auxiliary ruler 3 is adjusted, the position of the first auxiliary ruler 2 is adjusted, the evaluation frame with the fixed area is formed on the rectangular main ruler 1, the magnetic powder of the type of the evaluation frame with the fixed area is applied as required, the evaluation frame with the fixed area and different side lengths is not required to be repeatedly drawn on the site by detection personnel in the infiltration detection process, the requirements of fixed area and adjustable side length of the evaluation frame can be simultaneously met, the operation is convenient and simple, the accuracy is high, the carrying is convenient, the operation steps of detection personnel can be greatly saved, and the detection efficiency is greatly improved.
Claims (5)
1. A portable scale for appraising is characterized in that: the measuring tool comprises a rectangular main ruler (1), a first auxiliary ruler (2) and a second auxiliary ruler (3), wherein the second auxiliary ruler (3) is perpendicular to the first auxiliary ruler (2), the length direction of the first auxiliary ruler (2) is parallel to the length direction of the rectangular main ruler (1), and the length direction of the second auxiliary ruler (3) is parallel to the width direction of the rectangular main ruler (1); the first auxiliary ruler (2) is located on the upper side of the rectangular main ruler (1), the second auxiliary ruler (3) is located on the upper side of the first auxiliary ruler (2), and the second auxiliary ruler (3) and the first auxiliary ruler (2) are both in sliding connection with the rectangular main ruler (1);
the rectangular main scale (1) is provided with an inverse proportion curve groove (4), a linkage key pin (5) is arranged in the inverse proportion curve groove (4), the linkage key pin (5) is connected with the inverse proportion curve groove (4) in a sliding mode, a first waist-shaped hole (21) matched with the linkage key pin (5) is formed in the first auxiliary scale (2) along the length direction of the first auxiliary scale (2), a second waist-shaped hole (31) matched with the linkage key pin (5) is formed in the second auxiliary scale (3) along the length direction of the second auxiliary scale (3), and the linkage key pin (5) sequentially penetrates through the second waist-shaped hole (31) and the first waist-shaped hole (21) from top to bottom and then is inserted into the inverse proportion curve groove (4).
2. A portable scale according to claim 1 wherein: the both ends of first vice chi (2) all are equipped with first slider (22), the both ends of second vice chi (3) all are equipped with second slider (32).
3. A portable scale according to claim 1 wherein: the function of the central line of the inverse proportion curve slot (4) is
In mm.
4. A portable scale according to claim 1 wherein: the distance between the right lower end part of the inverse proportion curve groove (4) and the left end surface of the rectangular main scale (1) is 150 mm; the distance between the left upper end part of the inverse proportion curve groove (4) and the lower end surface of the rectangular main scale (1) is 150 mm.
5. A portable scale according to claim 1 wherein: the bottom of linkage key round pin (5) is equipped with limiting plate (51), inverse proportion curve groove (4) downside is equipped with the spout that suits with limiting plate (51), the top of linkage key round pin (5) is equipped with lock nut (52) that suits with second waist type hole (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121369401.6U CN215263261U (en) | 2021-06-18 | 2021-06-18 | Portable assessment ruler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121369401.6U CN215263261U (en) | 2021-06-18 | 2021-06-18 | Portable assessment ruler |
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| Publication Number | Publication Date |
|---|---|
| CN215263261U true CN215263261U (en) | 2021-12-21 |
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ID=79480948
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121369401.6U Active CN215263261U (en) | 2021-06-18 | 2021-06-18 | Portable assessment ruler |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113484331A (en) * | 2021-08-06 | 2021-10-08 | 武汉重工铸锻有限责任公司 | Adjustable evaluation frame caliper for penetration detection and penetration detection method |
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2021
- 2021-06-18 CN CN202121369401.6U patent/CN215263261U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113484331A (en) * | 2021-08-06 | 2021-10-08 | 武汉重工铸锻有限责任公司 | Adjustable evaluation frame caliper for penetration detection and penetration detection method |
| CN113484331B (en) * | 2021-08-06 | 2024-08-30 | 武汉重工铸锻有限责任公司 | Adjustable assessment frame caliper for penetration detection and penetration detection method |
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