A through gauge capable of accurately measuring the inner diameter

Abstract

The utility model discloses a can accurate measurement inner diameter's gauge of drift diameter, including combination gauge body, combination gauge body is the gauge body ring of multiple ring structure and is mutually superimposed combination forming, and the inside forms the passage of intercommunication, scale line, support cover, support ring, through -hole, adopt the gauge body ring of multiple ring structure and be mutually superimposed combination into the combination gauge body with the passage, through the support cover of built -in in the inside of passage connects its multiple gauge body ring into a whole, and multiple gauge body rings can be disassembled and change on suitable gauge body specification to detect the pipe column of different inner diameter, use is more convenient, the support cover both ends formed set up the support ring, can prevent the steel member to scratch the inner wall. The whole structure has increased the adjustable combination gauge body and scale, detects the maximum and minimum, the inner diameter of intermediate range, and the accurate and rapid detection inner diameter can clearly know the accurate size of the inner diameter drift diameter of oil pipe, casing and drill pipe, thereby overcoming the deficiency of prior art.

Description

Technical Field

[0001] This utility model relates to the field of general testing equipment for detecting whether the inner diameter of a tubular tool meets the requirements, and in particular to a gauging gauge that can accurately measure the inner diameter. Background Technology

[0002] Tubing, casing, and drill pipe are relatively long, at least five or six meters, and sometimes tens of meters. Their inner diameters typically have a lower limit deviation of zero and an upper limit deviation of positive deviation, such as 3.2 mm or larger. The inner diameter dimensions of tubing, casing, and drill pipe have specific requirements; measuring these dimensions facilitates subsequent drilling operations with appropriate tools and facilitates accident handling. Gauges are commonly used tools for checking the inner diameter dimensions of tubing, casing, and drill pipe. Currently, when checking the inner diameter of tubing, casing, and drill pipe, straight-through single-size gauges are typically used. These gauges can only measure one data point to determine the range of the tubing string's inner diameter, resulting in inaccurate inner diameter measurements. Therefore, existing gauges have some shortcomings and cannot meet the needs of practical use. Utility Model Content

[0003] The purpose of this invention is to provide a bore gauge that can accurately measure the inner diameter, thereby solving the problem that existing bore gauges using a single, straight-through size can only measure one data point to determine the inner diameter range of the pipe string, resulting in inaccurate inner diameter measurements. Therefore, existing bore gauges still have some shortcomings and cannot meet the needs of practical use.

[0004] The technical solution of this utility model is: a gauge that can accurately measure the inner diameter, including an assembly gauge body, wherein the assembly gauge body is formed by superimposing and combining multiple sets of ring-shaped gauge rings, and forming interconnected channels on the inner side, and the outer surface of the gauge rings is provided with scale lines.

[0005] A support sleeve is disposed on the inner side wall of the channel, and one end face forms a through support channel;

[0006] A support ring, one end of which is threadedly connected to the opening of the support channel, and the other end of which has a through hole.

[0007] Furthermore, a diameter difference is formed between two sets of adjacent gauge rings, and the cross-sectional area of ​​one end of the gauge ring is smaller than the cross-sectional area of ​​the other end, so that its outer surface forms an inclined surface.

[0008] Furthermore, the maximum cross-sectional area of ​​each of the gauge rings is equal to the size of the scale line formed on the outer surface.

[0009] Furthermore, the outer sidewall of the support sleeve is fitted to the inner sidewall of the channel.

[0010] Furthermore, the support ring is provided with a raised protective ring at the opening of the support channel, and the cross-sectional area of ​​the formed protective ring is smaller than the cross-sectional area of ​​the assembled body.

[0011] The advantages of this invention compared to existing technologies are as follows: Multiple sets of ring-shaped gauge rings are stacked and combined to form a combined gauge body with channels. Support sleeves built into the inner side of the channels connect these multiple gauge rings into a single unit. Multiple gauge rings can be disassembled and replaced with suitable gauge sizes to inspect tubing strings of different inner diameters, making it more convenient to use. Support rings at both ends of the formed support sleeve prevent steel parts from scratching the inner wall. The overall structure incorporates an adjustable combined gauge body and scale, allowing for the detection of the maximum, minimum, and intermediate inner diameters, enabling precise and rapid inner diameter measurement. This allows for clear identification of the accurate inner diameter dimensions of tubing, casing, and drill pipe, thus overcoming the shortcomings of existing technologies. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the assembly of this utility model, showing that the taper of the inclined surface gradually increases from left to right;

[0013] Figure 2 This is a schematic diagram of the overall structure of the present invention, showing that the taper of the inclined surface of the assembled body gradually increases and then gradually decreases from left to right. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0016] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0017] See Figure 1-2 The present invention discloses a gauge for accurately measuring inner diameter, comprising: a gauge body 2, wherein the gauge body 2 is formed by superimposing and combining multiple ring-shaped gauge rings 22, and forming interconnected channels 20 on the inner side; the outer surface of the gauge rings 22 is provided with scale lines 21; a support sleeve 3, which is disposed on the inner side wall of the channel 20, and one end face forms a through support channel 30; and a support ring 1, one end of which is threadedly connected to the opening of the support channel 30, and the other end is provided with a through hole 10. A suitable-sized through hole 10 is drilled near the head of the support ring 1 for easy pulling. The measurement targets are generally the inner diameter dimensions of tubing, casing, and drill pipe with regular cross-sectional shapes. The combined gauge body 2 uses multiple sets of annular gauge rings 22. The openings of two adjacent sets of annular gauge rings 22 are continuously stacked and combined to form a pipe with an inner channel 20. A support sleeve 3 is provided for the channel 20. The support sleeve 3 prevents the multiple sets of gauge rings 22 connected to form a pipe string from falling off, ensuring the integrity of the multiple gauge rings 22. At the same time, the outer surface of the formed gauge ring 22 has scale lines 21, which makes it easier to measure the inner diameter dimensions of tubing, casing, and drill pipe. Furthermore, the external thread of the support ring 1 is connected to the internal thread of the support sleeve 3.

[0018] Specifically, a diameter difference is formed between two sets of adjacent gauge rings 22, and the cross-sectional area of ​​one end of each gauge ring 22 is smaller than that of the other end, causing its outer surface to form an inclined surface. The maximum cross-sectional area of ​​each gauge ring 22 is the size of the scale line 21 formed on its outer surface. (See also...) Figure 1 In this system, by adding corresponding scale values ​​to the inclined taper of the outer sidewall surface of each gauge ring 22, the inner wall value can be accurately measured. Furthermore, the individual gauge ring 22 can be disassembled and replaced with a suitable gauge size to inspect tubing of different inner diameters. Its function is to gradually increase the measurement from a scale value of 0 to the highest point, thereby confirming the inner diameter through the value on the dial. (See reference...) Figure 2In the process, the taper of the outer sidewall surface of the gauge body gradually increases from zero and then decreases from the maximum point. The purpose of this is to allow the gauge to measure the inner wall from both ends. The inner wall value can be measured from the scale values ​​at both ends, gradually increasing from 0 to the maximum point and then from the maximum point back to 0, thereby confirming the size of the inner diameter through the value of the scale.

[0019] Specifically, the outer sidewall of the support sleeve 3 fits against the inner sidewall of the channel 20. For the gauge rings 22 with different diameters, the diameter of the channel 20 formed on the inner side is not uniform. The support sleeve 3 fits against the inner sidewall of the channel 20 and adopts a tight fit, which further increases the fixation of the support sleeve 3 on the assembled gauge rings 2 and effectively improves the stability of multiple gauge rings 22.

[0020] Specifically, the support ring 1 is provided with a raised protective ring 11 at the opening of the support channel 30, and the cross-sectional area of ​​the protective ring 11 is smaller than the cross-sectional area of ​​the assembly body 2, so as to protect the body ring 22 and prevent the steel parts from scratching the inner wall.

[0021] In addition to the preferred embodiments described above, there are other embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection claimed by this utility model.

Claims

1. A caliper gauge capable of accurately measuring inner diameter, characterized in that, include: The assembly body (2) is formed by superimposing and combining multiple sets of ring-shaped gauge rings (22) and forming interconnected channels (20) on the inner side. The outer surface of the gauge ring (22) is provided with scale lines (21). Support sleeve (3), the support sleeve (3) is disposed on the inner side wall of the channel (20), and one end face forms a through support channel (30). Support ring (1), one end of which is connected to the opening of the support channel (30) by a threaded connection, and the other end is provided with a through hole (10).

2. A caliper gauge capable of accurately measuring inner diameter according to claim 1, characterized in that, A diameter difference is formed between two adjacent sets of the gauge rings (22), and the cross-sectional area of ​​one end of the gauge ring (22) is smaller than that of the other end, so that its outer surface forms an inclined surface.

3. A caliper gauge capable of accurately measuring inner diameter according to claim 2, characterized in that, The maximum cross-sectional area of ​​each of the gauge rings (22) is the size of the scale line (21) formed on the outer surface.

4. A caliper gauge capable of accurately measuring inner diameter according to claim 3, characterized in that, The outer sidewall of the support sleeve (3) is in contact with the inner sidewall of the channel (20).

5. A caliper gauge capable of accurately measuring inner diameter according to claim 4, characterized in that, The support ring (1) has a raised protective ring (11) at the opening of the support channel (30), and the cross-sectional area of ​​the protective ring (11) is smaller than the cross-sectional area of ​​the assembly body (2).

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