Ocean steel structure node assembly groove angle detection device

Abstract

The utility model discloses an ocean steel structure node assembly groove angle detection device, which relates to the technical field of groove angle detection and comprises a support plate, and an angle measuring assembly used for displaying the groove angle is arranged at the top of the support plate. The angle measuring assembly comprises a semicircular transparent shell, scale marks are machined on the edge of the inner wall of the transparent shell, a fixed supporting leg and a telescopic supporting leg are rotationally connected into the transparent shell, and short plates attached to the steel structure at the groove are fixed to the end, away from the transparent shell, of the fixed supporting leg and the end, away from the transparent shell, of the telescopic supporting leg. Whether the bottom edge of the transparent shell located at the top of the supporting plate is located at the horizontal position or not can be judged by observing whether the connecting rope coincides with the vertical seam or not, so that errors existing in traditional manual alignment are reduced, and the measurement precision of the groove angle is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of groove angle detection, in particular to a groove angle detection device for a node group of an ocean steel structure. Background Art

[0002] At present, the global land oil and natural gas resources are far from meeting the needs of social development, and there are abundant undeveloped oil and natural gas resources stored around the ocean, so the development of marine resources is becoming increasingly important. The offshore platform is a landmark facility in the marine resource development project. It is an ultra-large welded steel structure. The steel used in the offshore platform plays the most important role in ensuring the safety of marine facilities as an engineering structure steel. The offshore platform is used in severe marine working environments such as waves, tides, storms and extremely cold drift ice to support drilling equipment with a total weight of more than hundreds of tons. These usage characteristics determine that the steel used in the offshore platform must have high strength, high toughness, fatigue resistance, lamellar tearing resistance, good weldability and cold processing, and seawater corrosion resistance. This is of great significance for ensuring the safety of operators, improving the service life of offshore platform steel, and developing marine resources.

[0003] During the construction of offshore oil platform steel structures, when inspecting the steel structure node groups, it is usually necessary to use a multifunctional weld inspection ruler to detect the groove angle. As shown in the prior art with announcement number CN213748219U, this technical solution needs to ensure that the bottom edge of the scale is in a horizontal state during the measurement process. This operation is recognized by the naked eye, and there is a certain error, which can easily affect the final measurement accuracy. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a device for detecting the groove angle of a node group of a marine steel structure. By observing whether the connecting rope coincides with the vertical seam, it can be determined whether the bottom edge of the transparent shell located on the top of the support plate is in a horizontal position, so as to reduce the errors existing in traditional manual alignment and improve the measurement accuracy of the groove angle.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: a device for detecting the groove angle of a node group of a marine steel structure comprises a support plate, and an angle measuring component for displaying the groove angle is provided on the top of the support plate;

[0006] The angle measuring assembly comprises a semicircular transparent shell, the inner wall edge of the transparent shell is processed with scale lines, a fixed leg and a retractable leg are rotatably connected inside the transparent shell, and a short plate that fits the steel structure at the groove is fixed to one end of the fixed leg away from the transparent shell and one end of the retractable leg away from the transparent shell;

[0007] The bottom of the support plate is provided with a horizontal alignment component for calibrating whether the bottom of the transparent shell is in a horizontal position;

[0008] The horizontal alignment assembly includes two calibration frames respectively fixed at the two ends of the bottom of the support plate, the vertical cross-section of the calibration frame is an inverted U-shape, a vertical slit is opened on the front side of the calibration frame, a connecting rope is fixed to the top of the inside of the calibration frame, a heavy ball is fixed to the bottom end of the connecting rope, and when the connecting rope coincides with the vertical slit, the bottom of the support plate and the bottom end of the transparent shell are both in a horizontal position.

[0009] Preferably, the scale lines range from 0° to 180°.

[0010] Preferably, the fixed legs are perpendicular to the short board, and the retractable legs are perpendicular to the short board.

[0011] Preferably, the middle of the support plate is hollow and communicated with the inside of the transparent shell, the bottom ends of the fixed legs and the retractable legs pass through the support plate and extend to the bottom of the support plate, a rotating shaft is fixed in the middle of the support plate, and the fixed legs and the retractable legs are penetrated by the rotating shaft and rotate around the rotating shaft.

[0012] Preferably, the retractable leg is composed of a rotating rod, a connecting rod, an extension rod and a fixing bolt. The bottom end of the rotating rod is fixed to the top end of the connecting rod, the bottom end of the connecting rod is inserted into the extension rod, the rotating shaft passes through the rotating rod, the bottom end of the extension rod is fixed to the short plate, and one end of the fixing bolt passes through the extension rod and extends into the connecting rod and is threadedly connected to the connecting rod, so as to fix the position of the connecting rod.

[0013] Preferably, a plurality of threaded holes threadedly connected to the fixing bolts are formed on a side of the connecting rod facing the fixing bolts.

[0014] Compared with the prior art, the utility model provides a device for detecting the groove angle of a marine steel structure node assembly, which has the following beneficial effects:

[0015] 1. By setting a heavy ball on both sides of the bottom of the transparent shell that can remain vertically downward under the action of its own weight, the surveyor can determine whether the bottom edge of the transparent shell located on the top of the support plate is in a horizontal position by observing whether the connecting rope coincides with the vertical seam, thereby reducing the error existing in traditional manual alignment and improving the measurement accuracy of the groove angle.

[0016] 2. By setting the transparent shell into a semicircle, the utility model can measure the groove of 0°-180°, so as to expand the measurement range of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the utility model when in use;

[0019] Figure 3 It is a cross-sectional view of the transparent shell of the utility model;

[0020] Figure 4 It is an exploded view of the fixed legs, the retractable legs and the rotating shaft of the utility model;

[0021] Figure 5 Schematic diagram of the groove angle measurement principle.

[0022] In the figure:

[0023] 1 support plate;

[0024] 2 angle measurement component, 21 transparent shell, 22 scale line, 23 fixed leg, 24 retractable leg, 25 short board, 26 rotating shaft;

[0025] 241 a rotating rod, 242 a connecting rod, 243 an extension rod, 244 a fixing bolt;

[0026] 3 horizontal alignment assembly, 31 calibration frame, 32 vertical seam, 33 connecting rope, 34 heavy ball. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0028] like Figure 1-4 As shown, the utility model provides a device for detecting the groove angle of a node group of an offshore steel structure, comprising a support plate 1, wherein an angle measuring component 2 for displaying the groove angle is provided on the top of the support plate 1;

[0029] The angle measuring assembly 2 includes a semicircular transparent shell 21, and the inner wall edge of the transparent shell 21 is processed with scale lines 22, and the scale lines 22 range from 0° to 180°, the leftmost end of the scale lines 22 is 0°, and the rightmost end of the scale lines 22 is 180°. Compared with the measuring ruler in the prior art, the measuring range of the utility model is larger;

[0030] A fixed leg 23 and a retractable leg 24 are rotatably connected inside the transparent shell 21. The middle of the support plate 1 is set to be hollow and communicated with the inside of the transparent shell 21. The bottom ends of the fixed leg 23 and the retractable leg 24 penetrate the support plate 1 and extend to the bottom of the support plate 1. A rotating shaft 26 is fixed in the middle of the support plate 1. The fixed leg 23 and the retractable leg 24 are penetrated by the rotating shaft 26 and rotate around the rotating shaft 26. The end of the fixed leg 23 away from the transparent shell 21 and the end of the retractable leg 24 away from the transparent shell 21 are both fixed with a short plate 25 that fits the steel structure at the groove, and the fixed leg 23 is perpendicular to the short plate 25, and the retractable leg 24 is perpendicular to the short plate 25;

[0031] In the actual measurement of the utility model, the two short plates 25 need to be respectively attached to the groove surface of the marine steel structure node group, such as Figure 2 As shown, the length of the telescopic leg 24 is reasonably adjusted according to the distance between the two groove surfaces. The telescopic leg 24 in the utility model is composed of a rotating rod 241, a connecting rod 242, an extension rod 243 and a fixing bolt 244. The bottom end of the rotating rod 241 is fixed to the top of the connecting rod 242, the bottom end of the connecting rod 242 is inserted into the extension rod 243, the rotating shaft 26 passes through the rotating rod 241, the bottom end of the extension rod 243 is fixed to the short plate 25, and one end of the fixing bolt 244 passes through the extension rod 243 and extends The connecting rod 242 is inserted into the connecting rod 242 and is threadedly connected to the connecting rod 242. The connecting rod 242 is provided with a plurality of threaded holes threadedly connected to the fixing bolts 244 on one side facing the fixing bolts 244. When adjusting the length of the telescopic leg 24, the fixing bolts 244 need to be loosened, and then the extension rod 243 is stretched outward. When the short plate 25 at the bottom end of the extension rod 243 moves to a suitable position, one end of the fixing bolt 244 is screwed into the threaded hole, so that the position of the connecting rod 242 can be fixed, and the telescopic leg 24 can be adjusted to a suitable length.

[0032] Next, it is necessary to ensure that the support plate 1 and the bottom of the transparent shell 21 are both in a horizontal position. To avoid errors caused by manual alignment, a horizontal alignment component 3 is provided at the bottom of the support plate 1 to calibrate whether the bottom of the transparent shell 21 is in a horizontal position. Specifically, Figure 2 and 3As shown, the horizontal alignment component 3 includes two calibration frames 31 respectively fixed at the two ends of the bottom of the support plate 1, the vertical section of the calibration frame 31 is an inverted U shape, a vertical slit 32 is opened on the front side of the calibration frame 31, a connecting rope 33 is fixed to the top of the calibration frame 31, and a heavy ball 34 is fixed to the bottom end of the connecting rope 33. The heavy ball 34 in the utility model can make the calibration frame 31 in a vertical state under the action of its own gravity, so when the transparent shell 21 and the bottom of the support plate 1 do not reach a horizontal position, a certain angle will be presented between the connecting rope 33 and the vertical slit 32. When the connecting rope 33 coincides with the vertical slit 32, the bottom of the support plate 1 and the bottom end of the transparent shell 21 are in a horizontal position. Figure 2 Therefore, the measurement personnel can judge whether the bottom of the transparent shell 21 is in a horizontal state by only observing whether the connecting rope 33 overlaps with the vertical seam 32, so as to improve the measurement accuracy.

[0033] Finally, by reading the angle values ​​indicated by the top of the fixed leg 23 and the top of the telescopic leg 24, and then subtracting them, we can get Figure 5 As for the angle value of ∠4, according to the principle of equal angles, ∠3 is equal to ∠4. Since the fixed leg 23 and the retractable leg 24 are both perpendicular to the short plate 25, ∠1 and ∠2 are both 90°. It is known that the sum of the interior angles of a quadrilateral is 360°, that is to say, the sum of ∠1, ∠2, ∠3 and ∠5 is 360°. At this time, the values ​​of ∠1, ∠2 and ∠3 are already known, and the value of ∠5 can be obtained by subtracting the sum of ∠1, ∠2 and ∠3 from 360°. This angle value is also the final measured groove angle value.

[0034] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A device for detecting groove angles of a marine steel structure node assembly, comprising a support plate (1), characterized in that: An angle measuring component (2) for displaying the groove angle is provided on the top of the support plate (1); The angle measuring assembly (2) comprises a semicircular transparent shell (21), the inner wall edge of the transparent shell (21) is processed with a scale line (22), the transparent shell (21) is rotatably connected with a fixed leg (23) and a retractable leg (24) inside, and a short plate (25) that fits the steel structure at the groove is fixed to one end of the fixed leg (23) away from the transparent shell (21) and one end of the retractable leg (24) away from the transparent shell (21); A horizontal alignment component (3) for calibrating whether the bottom of the transparent shell (21) is in a horizontal position is provided at the bottom of the support plate (1); The horizontal alignment assembly (3) comprises two calibration frames (31) respectively fixed at two ends of the bottom of the support plate (1); the vertical cross-section of the calibration frame (31) is an inverted U-shape; a vertical slit (32) is provided on the front side of the calibration frame (31); a connecting rope (33) is fixed at the top end of the calibration frame (31); a heavy ball (34) is fixed at the bottom end of the connecting rope (33); when the connecting rope (33) overlaps with the vertical slit (32), the bottom of the support plate (1) and the bottom end of the transparent shell (21) are both in a horizontal position.

2. The device for detecting groove angles of marine steel structure nodes according to claim 1, characterized in that: The scale line (22) ranges from 0° to 180°.

3. The device for detecting groove angles of marine steel structure nodes according to claim 1, characterized in that: The fixed supporting leg (23) is perpendicular to the short plate (25), and the telescopic supporting leg (24) is perpendicular to the short plate (25).

4. The device for detecting groove angles of marine steel structure nodes according to claim 1, characterized in that: The middle of the support plate (1) is hollow and communicates with the interior of the transparent shell (21); the bottom ends of the fixed legs (23) and the retractable legs (24) penetrate the support plate (1) and extend to the bottom of the support plate (1); a rotating shaft (26) is fixed in the middle of the support plate (1); the fixed legs (23) and the retractable legs (24) are penetrated by the rotating shaft (26) and rotate around the rotating shaft (26).

5. The device for detecting groove angles of marine steel structure node groups according to claim 4, characterized in that: The retractable leg (24) is composed of a rotating rod (241), a connecting rod (242), an extension rod (243) and a fixing bolt (244); the bottom end of the rotating rod (241) is fixed to the top end of the connecting rod (242); the bottom end of the connecting rod (242) is inserted into the extension rod (243); the rotating shaft (26) passes through the rotating rod (241); the bottom end of the extension rod (243) is fixed to the short plate (25); one end of the fixing bolt (244) passes through the extension rod (243) and extends into the connecting rod (242) to be threadedly connected to the connecting rod (242) for fixing the position of the connecting rod (242).

6. The device for detecting groove angles of marine steel structure node groups according to claim 5, characterized in that: The connecting rod (242) is provided with a plurality of threaded holes threadedly connected to the fixing bolts (244) on one side thereof facing the fixing bolts (244).

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