Elbow detection tool

Abstract

The utility model relates to the technical field of elbow detection, in particular to an elbow detection tool, which comprises a first measuring rod, a second measuring rod, a protractor and a support frame. The first measuring rod is hinged with the second measuring rod, a detection end and a handheld end are respectively formed at two ends of the hinged part, and the detection end is matched with the elbow; the first measuring rod is provided with a matching groove at the hinged part, the second measuring rod is provided with a matching part at the hinged part, the matching groove and the matching part are equal in length, and the length of the matching part is at least three times of the width of the matching part. A datum line is arranged in the middle of the first measuring rod and the second measuring rod, and the datum line is matched with the protractor; the first measuring rod and the second measuring rod are respectively provided with a level bubble, and the level bubbles are matched with a liftable support frame. The elbow size detection tool is simple and convenient to use, can rapidly and accurately detect the size of an elbow by a single person, effectively improves the detection efficiency, and facilitates the improvement of the production efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of elbow detection, in particular to an elbow detection tool. Background Art

[0002] In heat transport pipelines, elbows with large diameters and small curvature radii are often used, such as elbows with a diameter of 1620mm. Due to their large outer diameter and heavy weight, standard elbows, such as 45° and 90° standard elbows, are generally required for the convenience of on-site installation. This requires companies to conduct all-round inspections of elbows before the products leave the factory, such as structural dimensions, bending radius, and bending angle, so as to meet actual installation requirements.

[0003] The existing detection method is to use the method of marking on the ground. During the process, the dimension line of the standard elbow is pre-drawn on the ground, and then the elbow to be tested is placed on the dimension line by hoisting, and then compared, so as to realize the detection of the elbow. Subsequently, adaptive adjustments are made according to the test results to meet the factory requirements. During the whole process, due to the large size and heavy weight of the elbow, it has a large inertia. In actual operation, it often requires the cooperation of at least 3 operators. At the same time, it is difficult to place the elbow quickly and accurately on the dimension line, resulting in extremely low detection efficiency, which seriously affects production efficiency. In addition, due to the hoisting operation, there are also serious safety hazards.

[0004] Therefore, in order to solve the problems of difficulty in detecting large-size elbows and low detection efficiency in actual production, an elbow detection tooling is proposed to quickly and efficiently detect large-size elbows, thereby ensuring production safety and improving production efficiency. Utility Model Content

[0005] The purpose of the utility model is to provide an elbow detection tool to address the deficiencies of the above-mentioned prior art, so as to achieve the purpose of being able to quickly and efficiently detect large-sized elbows, thereby improving production efficiency.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an elbow detection tool, including a first measuring rod and a second measuring rod, the first measuring rod and the second measuring rod are hinged, the hinge is a hinge part, and the lengths of the first measuring rod and the second measuring rod are symmetrical about the left and right sides of the hinge part; the long ends of the first measuring rod and the second measuring rod on one side of the hinge part form a detection end, and the short ends of the first measuring rod and the second measuring rod on one side of the hinge part form a handheld end, and the detection end cooperates with the elbow; a reference line is set in the middle part of the detection ends on both sides, the reference lines on both sides are respectively located on the same straight line with the hinge part, and the reference line cooperates with the protractor; a level bubble is set above the detection ends on both sides, and a liftable support frame is set below the first measuring rod and the second measuring rod, and the level bubble cooperates with the support frame.

[0007] Furthermore, the first measuring rod is provided with a matching groove at the hinge part, and the second measuring rod is provided with a matching part at the hinge part, the matching part is hinged to the matching groove through the hinge part, the matching part and both sides of the matching groove are symmetrically arranged about the hinge part, the length of the matching groove is consistent with the length of the matching part, and the length of the matching part is at least three times the width of the matching part.

[0008] Furthermore, the protractor is fixedly connected to the first measuring rod, the zero scale line of the protractor is aligned with the reference line on the first measuring rod, and the center of the circle where the protractor is located coincides with the hinged portion.

[0009] Furthermore, the protractor is provided with a notch at a position corresponding to the hinged portion.

[0010] Furthermore, the first measuring rod and / or the second measuring rod is provided with a scale.

[0011] Beneficial effects of the utility model:

[0012] 1. Make the inspection of large-size elbows simpler and more convenient, effectively improve the inspection efficiency, and benefit the improvement of production efficiency;

[0013] 2. It can be adapted to standard elbows of different models and specifications, making it more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the utility model when in use (top view);

[0015] Figure 2 It is a schematic top view of the structure of the detection device of the utility model;

[0016] Figure 3 This utility model Figure 2 Schematic diagram of the local method in part A;

[0017] Figure 4 It is a schematic diagram of the connection structure between the first measuring rod and the second measuring rod of the utility model.

[0018] The names corresponding to the marks in the figure are:

[0019] 1. Elbow; 2. Detection device; 21. First measuring rod; 211. Matching groove; 22. Second measuring rod; 221. Matching part; 23. Articulated part; 24. Level bubble; 25. Reference line; 26. Detection end; 27. Handheld end; 3. Protractor; 31. Notch; 32. Fastening bolt. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0021] Embodiments of the present utility model:

[0022] like Figure 1-4 As shown, in the detection device 2 of this embodiment, a first measuring rod 21 and a second measuring rod 22 are provided. The first measuring rod 21 and the second measuring rod 22 are hinged, and the hinged part is a hinge part 23. The long ends of the first measuring rod 21 and the second measuring rod 22 on one side of the hinge part 23 form a detection end 26, and the short ends of the first measuring rod 21 and the second measuring rod 22 on one side of the hinge part 23 form a handheld end 27. The detection ends 26 on both sides cooperate with the elbow 1, and a level bubble 24 is provided on the detection end 26. At the same time, a reference line 25 is provided in the middle position above the first measuring rod 21 and the second measuring rod 22.

[0023] A protractor 3 is fixedly mounted on the first measuring rod 21 by means of a fastening bolt 32, a notch 31 matched with the hinge 23 is arranged at the center of the protractor 3, and the center of the circle where the protractor 3 is located coincides with the hinge 23, the hinge 23 and the reference line 25 are located on the same straight line, and after the protractor 3 is fixed, the zero scale line is aligned with the reference line 25 on the first measuring rod 21, and the reference line 25 on the second measuring rod 22 is used for the angle measurement reading.

[0024] The first measuring rod 21 is provided with a matching groove 211 at the hinge portion 23, and the second measuring rod 22 is provided with a matching portion 221 at the hinge portion 23. The matching portion 221 is hinged in the matching groove 211 through the hinge portion 23. The matching portion 221 and the matching groove 211 are symmetrically arranged with respect to the hinge portion 23. The length of the matching groove 211 is consistent with the length of the matching portion 221, so that the angle between the first measuring rod 21 and the second measuring rod 22 can reach 180°; the length of the matching portion 221 is at least three times the width of the first measuring rod 21, so that the minimum angle between the first measuring rod 21 and the second measuring rod 22 is less than 45°.

[0025] Support frames are provided under the first measuring rod 21 and the second measuring rod 22 . There are at least two support frames under each measuring rod. The support frames cooperate with the level bubble 24 to level the first measuring rod 21 and the second measuring rod 22 .

[0026] The principle of this utility model is:

[0027] When the utility model is in use, the length and width specifications of the first measuring rod 21 and the second measuring rod 22 are consistent, and the matching portion 221 and the matching groove 211 are of equal length, and the hinge portion 23 is located in the middle of the matching groove 211 and the matching portion 221. At the same time, it should be noted that, in theory, the length of the matching portion 221 is at least ( +1) times, at this time, the minimum angle that the first measuring rod 21 and the second measuring rod 22 can reach is 45°, but in actual operation, since it is necessary to measure a 45° standard elbow, the angle needs to be at least less than 45°, so the length of the fitting portion 221 needs to be greater than ( +1) times. In actual use, choosing three times or more can well meet the needs.

[0028] When testing the elbow 1, the support frame is placed in advance, and the central bubble of the level bubble 24 is observed to see whether it is located at the center position, and adjustments are made according to the actual position so that the first measuring rod 21 and the second measuring rod 22 are kept horizontal.

[0029] During the detection process, pressure is applied to the middle through the handheld end 27, so that the detection end 26 clamps and fixes the two ends of the elbow 1, and constantly adjusts the position so that the detection end 26 is completely fitted with the end face of the elbow 1. At this time, the specification and size of the elbow 1 can be measured. During the process, the protractor 3 (when the protractor 3 and the second measuring rod 22 are fixedly installed, the fastening bolt 32 cannot extend into the matching groove 211 to avoid affecting the rotation of the second measuring rod 21) can be used to measure the angle. The inner and outer diameters of the elbow 1 can be measured by the tape measure. Then, the elbow 1 is adaptively adjusted according to the measurement results. When the material specifications remain unchanged during the process, the angle is large and the inner and outer diameters are both too large or too small. At this time, the product needs to be processed again to ensure that the product meets the specifications.

[0030] In other embodiments of the utility model, the protractor 3 may not be fixedly connected to the first measuring rod 21. When measuring, it is necessary to align the zero scale line of the protractor 3 with the reference line on the first measuring rod 21, and ensure that the center of the protractor 3 coincides with the hinge 23. At the same time, in other embodiments, length scales may be marked on the first measuring rod 21 and / or the second measuring rod 22, so as to read the inner and outer diameters of the elbow 1, making it more convenient to use.

Claims

1. An elbow detection tool, characterized in that: The device comprises a first measuring rod (21) and a second measuring rod (22), wherein the first measuring rod (21) and the second measuring rod (22) are hingedly connected, the hinged portion is a hinged portion (23), and the lengths of the first measuring rod (21) and the second measuring rod (22) are symmetrical about the left and right sides of the hinged portion (23); the long ends of the first measuring rod (21) and the second measuring rod (22) on one side of the hinged portion (23) form a detection end (26), and the short ends of the first measuring rod (21) and the second measuring rod (22) on one side of the hinged portion (23) form a handheld end (27). The detection end (26) is matched with the elbow (1); a reference line (25) is arranged at the middle part of the detection ends (26) on both sides, the reference lines (25) on both sides and the hinged part (23) are respectively located on the same straight line, and the reference line (25) is matched with the protractor (3); a level bubble (24) is arranged above the detection ends (26) on both sides, and a liftable support frame (4) is arranged below the first measuring rod (21) and the second measuring rod (22), and the level bubble (24) is matched with the support frame (4).

2. The elbow detection tool according to claim 1, characterized in that: The first measuring rod (21) is provided with a matching groove (211) at the hinged portion (23), and the second measuring rod (22) is provided with a matching portion (221) at the hinged portion (23); the matching portion (221) is hinged to the matching groove (211) via the hinged portion (23); the matching portion (221) and both sides of the matching groove (211) are symmetrically arranged with respect to the hinged portion (23); the length of the matching groove (211) is consistent with the length of the matching portion (221); and the length of the matching portion (221) is at least three times the width of the matching portion (221).

3. The elbow detection tool according to claim 1, characterized in that: The protractor (3) is fixedly connected to the first measuring rod (21), the zero scale line of the protractor (3) is aligned with the reference line (25) on the first measuring rod (21), and the center of the circle where the protractor (3) is located coincides with the hinged portion (23).

4. The elbow detection tool according to claim 3, characterized in that: The protractor (3) is provided with a notch (31) at a position corresponding to the hinge portion (23).

5. The elbow detection tool according to claim 1, characterized in that: The first measuring rod (21) and / or the second measuring rod (22) are provided with a scale.

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