Oil casing coupling standoff measuring device

Abstract

The utility model relates to an oil casing coupling standoff measuring device. According to the technical scheme, the measuring scale comprises a main scale, a first measuring scale body and a second measuring scale body, the main scale body is installed in a middle installation groove of the first measuring scale body, upper scales and lower scales are marked on the first measuring scale body, a first locking bolt is arranged on the upper side of the first measuring scale body, an installation notch is formed in the front side of the first measuring scale body, and an inclined groove is formed in the rear side of the first measuring scale body; a mounting base is arranged on the upper side of the second measuring scale, an inclined convex groove is formed in the rear side of the mounting base, the second measuring scale is connected with the inclined groove of the first measuring scale in a matched mode through the inclined convex groove, lower standard scales are arranged on the front side of the second measuring scale, and a second locking nut is arranged on the lower side of the second measuring scale. The oil casing coupling standoff detection device has the advantages that the oil casing coupling standoff detection speed is increased, the problem of miscalculation of the oil casing coupling standoff is reduced, unqualified products are prevented from flowing into the market, and therefore the purposes of reducing cost and improving efficiency are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil casing coupling measuring device, especially in an oil casing coupling tight distance measuring device. BACKGROUND

[0002] In the petroleum industry, API standards aim to improve operational safety, environmental protection and sustainability, and play an important role in the standardization of equipment for the international oil and gas industry. Among them, the API standard oil casing is produced in China, especially when producing API SPEC 5B oil casing coupling in batches, due to the difference of the buckle type of the coupling, there are no thickening oil pipe coupling, thickening oil pipe coupling, long round thread coupling, short round thread coupling, trapezoidal thread coupling, the end face thickness of the plug gauge used for measuring the tight distance is inconsistent, and the API standard is not applicable. Figures 8-10 Sometimes the vernier caliper cannot directly measure the tight distance a, the distance between the rear end face of the plug gauge and the end face of the coupling, the vernier caliper cannot be placed in it, a depth gauge needs to be used for indirect measurement, and the difference of the plug gauge end face thickness b is calculated after the measurement is completed. UTILITY MODEL CONTENTS

[0003] The utility model aims at the above-mentioned defects existing in the prior art, provides an oil casing coupling tight distance measuring device, improves the speed of inspecting the tight distance of the oil casing coupling, eliminates the problem of calculating the tight distance of the coupling, avoids the unqualified products flowing into the market, so as to achieve the purpose of reducing cost and increasing efficiency.

[0004] The utility model discloses an oil casing coupling tight distance measuring device, and the technical scheme is: a main ruler (1), a first measuring ruler (2) and a second measuring ruler (3), the main ruler (1) is installed in the middle installation groove (2.5) of the first measuring ruler (2), the first measuring ruler (2) is marked with upper scale (2.1) and lower scale (2.4), and a first locking bolt (2.2) is arranged on the upper side of the first measuring ruler (2), an installation notch (2.8) is arranged on the front side of the first measuring ruler (2), and an inclined recess (2.6) is arranged on the rear side of the first measuring ruler (2);The upper side of the second measuring ruler (3) is provided with a mounting seat (3.5), the rear side of the mounting seat (3.5) is provided with an inclined convex groove (3.6), the second measuring ruler (3) is connected with the inclined recess (2.6) of the first measuring ruler (2) through the inclined convex groove (3.6), the left end lower part of the second measuring ruler (3) is provided with a measuring claw (3.1), a lower vernier scale (3.3) is arranged on the front side of the second measuring ruler (3), and a second locking nut (3.2) is arranged on the lower side of the second measuring ruler (3).

[0005] Preferably, the upper end of the first scale (2) is provided with a first push-stop operating block (2.3) on one side of the first locking bolt (2.2), the first scale (2) is moved along the main scale (1) by the first push-stop operating block (2.3), and the first scale (2) is fixed on the upper part of the main scale (1) by the first locking bolt (2.2).

[0006] Preferably, the mounting gap (2.8) of the first scale (2) is provided with a conical upper suspension body (2.7) above, the upper scale (2.1) is arranged on the inclined surface of the front side of the upper suspension body (2.7), the lower convex part (2.9) is arranged below the mounting gap (2.8), the main scale (1) is of a rectangular structure, and the main scale (1) is installed into the middle installation slot (2.5) of the rectangular structure along the mounting gap (2.8).

[0007] Preferably, the lower side of the right end of the second scale (3) is provided with a second push-stop operating block (3.4) on the right side of the second locking bolt (3.2).

[0008] Preferably, the cross section of the inclined convex groove (3.6) is a parallelogram structure, the cross section of the inclined concave groove (2.6) is a parallelogram structure, and the inclined convex groove (3.6) is slidably connected in the inclined concave groove (2.6), so that the second scale (3) is slidably connected along the first scale (2).

[0009] Preferably, the front side of the mounting seat (3.5) of the second scale (3) is provided with a limiting convex (3.7).

[0010] Preferably, the lower cursor scale (3.3) is arranged on the inclined surface of the front side of the mounting seat (3.5) of the second scale (3).

[0011] The utility model discloses a main scale and first scale are provided with the upper scale, and the first locking bolt is used to lock the position of the upper scale, so that the position of the lower scale is obtained, and the thickness of the end surface of the plug gauge is obtained. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the whole installation schematic diagram of the utility model;

[0013] Figure 2 It is the structure schematic diagram of the main scale;

[0014] Figure 3 It is the side structure schematic diagram of the main scale;

[0015] Figure 4 is the structural schematic view of the first measuring scale;

[0016] Figure 5 is the side view of the first measuring scale;

[0017] Figure 6 is the structural schematic view of the second measuring scale;

[0018] Figure 7 is the side view of the second measuring scale;

[0019] Figure 8 is the structural schematic view of the coupling;

[0020] Figure 9 is the structural schematic view of the plug gauge;

[0021] Figure 10 is the structural schematic view of the coupling and the plug gauge combination;

[0022] Figure 11 is the structural schematic view of the utility model during measurement;

[0023] In the above figure: main ruler 1, first measuring scale 2, second measuring scale 3, coupling 4, plug gauge 5, main ruler scale 1.1, upper scale 2.1, first locking bolt 2.2, lower scale 2.4, middle installation slot 2.5, inclined recess 2.6, upper suspension body 2.7, installation notch 2.8, lower convex part 2.9, measuring claw 3.1, second locking nut 3.2, lower cursor scale 3.3, second push stop operating block 3.4, mounting seat 3.5, inclined convex groove 3.6, limiting protrusion 3.7, close distance a, thickness of end surface b. DETAILED DESCRIPTION

[0024] The preferred embodiments of the utility model are described below in combination with the drawings, and it should be understood that the preferred embodiments described herein are only used for illustrating and explaining the utility model, and are not used for limiting the utility model.

[0025] Example 1, refer to Figures 1-11The utility model provides a kind of casing coupling close distance measuring device, including main ruler 1, first scale 2 and second scale 3, the main ruler 1 is installed in the intermediate installation groove 2.5 of first scale 2, the first scale 2 is marked with upper scale 2.1 and lower scale 2.4, and first locking bolt 2.2 is equipped in the upper side of first scale 2, installation notch 2.8 is equipped in the front side of first scale 2, the rear side of first scale 2 is equipped with inclined recess 2.6;The upper side of second scale 3 is equipped with mounting seat 3.5, the rear side of mounting seat 3.5 is equipped with inclined convex groove 3.6, second scale 3 is connected with the inclined recess 2.6 of first scale 2 by inclined convex groove 3.6 cooperation, the lower part of left end of second scale 3 is equipped with scale claw 3.1, downstream vernier scale 3.3 is equipped in the front side of second scale 3, second locking nut 3.2 is equipped in the lower side of second scale 3.

[0026] Referring to Figures 4-5 The utility model discloses the upper end of first scale 2 is equipped with first push stop operating block 2.3, and it is located in the side of first locking bolt 2.2, and first scale 2 is moved position along main ruler 1 by first push stop operating block 2.3, and first scale 2 is fixed in the upper part of main ruler 1 by first locking bolt 2.2.

[0027] The upper side of the installation notch 2.8 of the above-mentioned first scale 2 is the upper suspension body 2.7 of conical structure, and the inclined surface of the front side of the upper suspension body 2.7 is provided with the upper scale 2.1; the lower side of the right end of the second scale 3 is equipped with the second push stop operating block 3.4, and it is located in the right side of the second locking bolt 3.2, and it is convenient to push second scale 3 to move position.

[0028] Referring to Figures 6-7 The lower side of the right end of the second scale 3 is equipped with the second push stop operating block 3.4, and it is located in the right side of the second locking bolt 3.2, and it is convenient to push second scale 3 to move position.

[0029] In addition, the front side of the mounting seat 3.5 of the above-mentioned second scale 3 is equipped with the limit protrusion 3.7, and the above-mentioned downstream vernier scale 3.3 is arranged on the inclined surface of the front side of the mounting seat 3.5 of second scale 3.

[0030] The utility model uses,

[0031] 1 in main ruler 1, be equipped with main ruler scale 1.1, and the every small group in main ruler scale 1.1 is 1mm;

[0032] 2 in first scale 2, two rows of scales are marked on the upper side, including upper scale 2.1 and lower scale 2.4, first locking bolt 2.2 and first push stop operating block 2.3 are arranged on the upper side of first scale 2, inclined recess 2.6 is arranged in the rear portion of first scale 2, and the interval of every small group of lower scale 2.4 in lower row is 1mm;

[0033] 3 second scale 3, upper side is provided with lower cursor scale 3.3, a bevel convex groove 3.6 is arranged in the middle, and a measuring claw 3.1 is arranged at the lower left side, and the second scale 3 can be installed on the first scale 2 through the bevel convex groove 3.6 and the mounting seat 3.5;

[0034] 4 When actually measuring, the thickness b of the end face of the plug gauge 5 is measured first, the upper scale 2.1 of the main ruler 1 and the first scale 2 is adjusted to the measured position, and the position is locked through the first locking bolt 2.2, so that the position of the lower scale 2.4 is also obtained;

[0035] 5 Since the plug gauge 5 is installed in the coupling 4, the measuring claw 3.1 is attached to the outer end face of the plug gauge 5, the main ruler 1 is pushed forward to the end face of the coupling 4, and the value between the lower cursor scale 3.3 and the lower scale 2.4 of the main ruler 1 is observed, which is the actual value of the close fit distance a of the oil casing coupling.

[0036] Therefore, when batch production is realized, the calculation process is saved, the actual value of the actual close fit distance of the coupling can be directly measured, the inspection efficiency is improved, and the probability of calculation error is reduced, so that the effective gauge for improving production efficiency is provided.

[0037] In the embodiment 2, the oil casing coupling close fit distance measuring device provided by the utility model comprises a main ruler 1, a first scale 2 and a second scale 3, the main ruler 1 is installed in the middle installation groove 2.5 of the first scale 2, the first scale 2 is marked with an upper scale 2.1 and a lower scale 2.4, a first locking bolt 2.2 is arranged on the upper side of the first scale 2, an installation notch 2.8 is arranged on the front side of the first scale 2, and a bevel groove 2.6 is arranged on the rear side of the first scale 2; the upper side of the second scale 3 is provided with a mounting seat 3.5, the rear side of the mounting seat 3.5 is provided with a bevel convex groove 3.6, the second scale 3 is connected with the bevel groove 2.6 of the first scale 2 through the bevel convex groove 3.6, a measuring claw 3.1 is arranged at the lower left end of the second scale 3, a lower cursor scale 3.3 is arranged on the front side of the second scale 3, and a second locking nut 3.2 is arranged on the lower side of the second scale 3.

[0038] The difference between the embodiment 1 and the embodiment 2 is that:

[0039] The cross section of the bevel convex groove 3.6 is a parallelogram structure, the cross section of the bevel groove 2.6 is a parallelogram structure, and the bevel convex groove 3.6 is slidably connected in the bevel groove 2.6, so that the second scale 3 is slidably connected along the first scale 2.

[0040] The above merely describes preferred embodiments of the present application, and any modification or equivalent transformation of the technical solutions described above can be made by those skilled in the art. Therefore, any simple modification or equivalent transformation made according to the technical solutions of the present application is within the scope of the present application.

Claims

1. A device for measuring the tightness of oil casing couplings, characterized in that: Includes a main ruler (1), a first measuring ruler (2), and a second measuring ruler (3). The main ruler (1) is installed in the middle mounting groove (2.5) of the first measuring ruler (2). The first measuring ruler (2) is marked with an upper scale (2.1) and a lower scale (2.4). A first locking bolt (2.2) is provided on the upper side of the first measuring ruler (2). A mounting notch (2.8) is provided on the front side of the first measuring ruler (2). A slanted groove (2.6) is provided on the rear side of the first measuring ruler (2). The second measuring scale (3) has a mounting base (3.5) on its upper side and a slanted groove (3.6) on its rear side. The second measuring scale (3) is connected to the first measuring scale (2.6) through the slanted groove (3.6). The lower left end of the second measuring scale (3) has a measuring jaw (3.1). The front side of the second measuring scale (3) has a downstream scale (3.3). The lower side of the second measuring scale (3) has a second locking nut (3.2).

2. The oil casing coupling tightness measuring device according to claim 1, characterized in that: The first measuring scale (2) has a first push-stop operation block (2.3) at its upper end, and is located on one side of the first locking bolt (2.2). The first measuring scale (2) is pushed along the main scale (1) by the first push-stop operation block (2.3); the first measuring scale (2) is fixed to the upper part of the main scale (1) by the first locking bolt (2.2).

3. The oil casing coupling tightness measuring device according to claim 2, characterized in that: Above the mounting notch (2.8) of the first measuring scale (2) is a conical upper suspension body (2.7), and an upper scale (2.1) is provided on the inclined surface on the front side of the upper suspension body (2.7); a lower protrusion (2.9) is provided below the mounting notch (2.8). The main scale (1) is a rectangular structure, and the main scale (1) is installed into the middle mounting groove (2.5) of the rectangular structure along the mounting notch (2.8).

4. The oil casing coupling tightness measuring device according to claim 3, characterized in that: The second measuring ruler (3) has a second push-stop operating block (3.4) on the lower right side, and is located to the right of the second locking nut (3.2).

5. The oil casing coupling tightness measuring device according to claim 4, characterized in that: The cross-section of the inclined protrusion (3.6) is a parallelogram structure, and the cross-section of the inclined groove (2.6) is a parallelogram structure. The inclined protrusion (3.6) is installed in the inclined groove (2.6) for sliding fit, so that the second measuring scale (3) slides along the first measuring scale (2).

6. The oil casing coupling tightness measuring device according to claim 5, characterized in that: The mounting base (3.5) of the second measuring scale (3) has a limiting protrusion (3.7) on the front side.

7. The oil casing coupling tightness measuring device according to claim 5, characterized in that: The downstream scale (3.3) is located on the inclined surface in front of the mounting base (3.5) of the second measuring scale (3).

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