A steel pipe detection device

Abstract

This utility model discloses a steel pipe testing device, belonging to the field of steel pipe pressure testing technology. Its key technical features include a housing, with a support platform fixedly connected to the bottom of the housing's inner cavity. A first laser ranging sensor and a second laser ranging sensor are installed at the top of the housing's inner cavity. A hydraulic push rod is fixedly connected to the center of the top of the housing, and a lifting plate is fixedly connected to the output end of the hydraulic push rod. Second stabilizing rods are fixedly connected to both sides of the top of the lifting plate. This utility model uses inlets located on both sides of the housing for feeding, accommodating steel pipes of different lengths. The arc-shaped structure at the top of the support platform, combined with the arc-shaped structure at the bottom of the stamping plate, improves the stability of the steel pipe during stamping, preventing slippage and affecting the testing results. Furthermore, the downward movement of the pressure plates on both sides of the stamping plate compresses and fixes the steel pipe, accommodating steel pipes of different diameters and enabling the testing of multiple specifications of steel pipes, demonstrating strong versatility.

Description

Technical Field

[0001] This utility model belongs to the field of steel pipe pressure testing technology, and specifically relates to a steel pipe testing device. Background Technology

[0002] As a fundamental material in the industrial field, the dimensional accuracy (such as diameter and roundness) and mechanical properties (such as compressive strength) of steel pipes directly determine the safety and reliability of end products. For example, excessive diameter deviation in oil and gas pipelines can lead to decreased connection sealing and leakage risks; insufficient compressive strength of steel pipes used in construction may cause structural collapse. Therefore, it is necessary to use testing equipment to test the compressive strength of steel pipes before use.

[0003] A search revealed Chinese patent CN221405198U, which discloses a steel pipe compressive strength testing device. The device includes a base, a pressing platform and a cylinder pressing assembly on top of the base, limit mechanisms on both sides of the pressing platform, and a pipe pressing seat above the pressing platform. This application facilitates continuous pressure testing of the steel pipe's compressive strength and avoids the risk of injury from debris splashing outwards during the pressing process, thus improving safety. However, it still has the following drawbacks: the steel pipe is fixed by sleeves of fixed dimensions on both sides, which is only suitable for fixing steel pipes of one size and is inconvenient for supporting and limiting steel pipes of different diameters. Furthermore, the length of the steel pipe being tested must be within the appropriate length range on both sides of the sleeves; if the steel pipe length exceeds the appropriate range, it cannot be tested. This results in low versatility and difficulty in compatibility with multiple specifications of steel pipes. Therefore, a steel pipe testing device is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a steel pipe testing device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a steel pipe detection device, comprising a housing, wherein a support platform is fixedly connected to the bottom of the inner cavity of the housing, and a first laser ranging sensor and a second laser ranging sensor are provided at the top of the inner cavity of the housing;

[0006] A hydraulic push rod is fixedly connected to the top center of the box body. A lifting plate is fixedly connected to the output end of the hydraulic push rod. Second stabilizing rods are fixedly connected to the top two sides of the lifting plate. A stamping plate is provided at the bottom of the lifting plate. A pressure sensor is fixedly connected between the stamping plate and the lifting plate. A third stabilizing rod is fixedly connected to the top four sides of the stamping plate.

[0007] Both sides of the hydraulic push rod are equipped with cylinders. The output end of the cylinder is connected to a pressure plate. The top of the pressure plate is fixedly connected to a first stabilizing rod around its perimeter. The air inlet end of the cylinder is connected to an air pipe.

[0008] Preferably, the front of the box is provided with an observation window, the two sides of the box are provided with inlets, the top of the support platform is provided with an arc-shaped structure, and the inlets correspond to the support platform.

[0009] Preferably, the first laser rangefinder corresponds to the centerline of the top arc-shaped wall of the support platform, and the second laser rangefinder corresponds to the top wall of the lifting plate.

[0010] Preferably, the two ends of the pressure sensor are fixedly connected to the lifting plate and the stamping plate, respectively, and the third stabilizing rod penetrates the wall of the lifting plate.

[0011] Preferably, the second stabilizing bar penetrates the top wall of the housing, the stamping plate is positioned directly above the top arc-shaped structure of the support platform, and the bottom wall of the stamping plate is configured as an arc-shaped structure.

[0012] Preferably, the first stabilizing bar penetrates the top wall of the housing, the pressure plate is positioned directly above the top arc-shaped structure of the support platform, and the bottom wall of the pressure plate is configured as an arc-shaped structure.

[0013] Preferably, one end of the air pipe is connected to the air pump, and a three-way pipe is provided in the middle of the air pipe. The air inlet ends of the two cylinders are connected to the output end of the air pump through the air pipe with the three-way pipe.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model first feeds the steel pipes through the inlets located on both sides of the box, which can accommodate steel pipes of different lengths. The top of the support platform has an arc-shaped structure, which, together with the arc-shaped structure at the bottom of the stamping plate, can improve the stability of the steel pipe during the stamping process and prevent slippage that would affect the test results. In addition, the pressure plates on both sides of the stamping plate move downward to squeeze and fix the steel pipe, which can accommodate steel pipes of different diameters and can be compatible with the testing of steel pipes of multiple specifications, making it highly versatile.

[0016] 2. This utility model also uses a second laser ranging sensor and a first laser ranging sensor to detect values ​​and calculates the diameter of the steel pipe to be tested and the change in the diameter of the steel pipe at the stamping position during the stamping process. By cooperating with a pressure sensor, the stamping intensity can be obtained, which can conveniently detect the pressure value of the critical compressive strength of the steel pipe deformation, making it convenient for testing and use.

[0017] In summary, through the interaction of the above-mentioned multiple functions, it can be adapted to the extrusion and fixing of steel pipes of different diameters and lengths, compatible with the testing of steel pipes of various specifications, and convenient for testing the pressure value of the critical compressive strength of steel pipe deformation, making it convenient for testing and use. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the present invention;

[0020] Figure 3 This is a schematic diagram of the connection structure between the lifting plate and the stamping plate of this utility model.

[0021] In the diagram: 1. Box body; 2. Support platform; 3. Feed inlet; 4. First laser rangefinder; 5. Second laser rangefinder; 6. Cylinder; 7. Pressure plate; 8. Air pipe; 9. First stabilizer bar; 10. Hydraulic push rod; 11. Lifting plate; 12. Second stabilizer bar; 13. Stamping plate; 14. Pressure sensor; 15. Third stabilizer bar. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1-3 This utility model provides a steel pipe detection device, including a box 1, a support platform 2 fixedly connected to the bottom of the inner cavity of the box 1, and a first laser ranging sensor 4 and a second laser ranging sensor 5 provided at the top of the inner cavity of the box 1. The first laser ranging sensor 4 corresponds to the center line of the top arc-shaped wall of the support platform 2, and the second laser ranging sensor 5 corresponds to the top wall of the lifting plate 11.

[0024] In this embodiment, the support platform 2 supports and limits the steel pipe to be stamped, preventing the steel pipe from bending during stamping. This makes it convenient to test the compressive deformation strength of the steel pipe. The first laser rangefinder 4 can detect the distance S1 between the top wall of the box 1 and the top wall of the bottom steel pipe, and the distance S2 between the top wall of the box 1 and the bottom wall of the top arc surface of the support platform 2. The undeformed diameter S3 of the steel pipe can be obtained by subtracting S1 from S2.

[0025] The distance S4 between the top wall of the box 1 and the top wall of the lifting plate 11 is detected by the second laser ranging sensor 5. The distance S5 between the top wall of the lifting plate 11 and the top wall of the bottom arc surface of the stamping plate 13 is added to obtain the distance S6 between the top wall of the box 1 and the top wall of the bottom arc surface of the stamping plate 13 during the stamping process. The diameter S7 during the stamping process of the steel pipe is obtained by subtracting S6 from S2. The values ​​of S3 and S7 are compared. When the two values ​​change, it indicates that the steel pipe is deformed at the stamping position, and the critical value of the steel pipe deformation can be obtained.

[0026] A hydraulic push rod 10 is fixedly connected to the top center of the housing 1. A lifting plate 11 is fixedly connected to the output end of the hydraulic push rod 10. A second stabilizing rod 12 is fixedly connected to both sides of the top of the lifting plate 11. A stamping plate 13 is provided at the bottom of the lifting plate 11. The second stabilizing rod 12 penetrates the top wall of the housing 1. The stamping plate 13 is located directly above the top arc structure of the support platform 2. The bottom wall of the stamping plate 13 is set as an arc structure. A pressure sensor 14 is fixedly connected between the stamping plate 13 and the lifting plate 11. A third stabilizing rod 15 is fixedly connected to the top four sides of the stamping plate 13. The two ends of the pressure sensor 14 are fixedly connected to the lifting plate 11 and the stamping plate 13 respectively. The third stabilizing rod 15 penetrates the wall of the lifting plate 11.

[0027] In this embodiment, the hydraulic push rod 10 is activated to control the lifting plate 11 to move the stamping plate 13 downward through the pressure sensor 14, thereby squeezing the bottom steel pipe. The pressure sensor 14 monitors the squeezing intensity in real time. The second stabilizing rod 12 improves the stability of the lifting plate 11's lifting and lowering, and the third stabilizing rod 15 improves the transmission stability between the lifting plate 11 and the stamping plate 13. At the same time, it can improve the stability during the stamping process and prevent the steel pipe from sliding.

[0028] When the critical value of the steel pipe's deformation compressive strength is detected during the extrusion test, the instantaneous pressure detected by the pressure sensor 14 is obtained in real time, and the critical value of the steel pipe's deformation compressive strength can be obtained, which is convenient for testing.

[0029] Both sides of the hydraulic push rod 10 are equipped with cylinders 6. The output end of the cylinder 6 is connected to a pressure plate 7. The top of the pressure plate 7 is fixedly connected with a first stabilizing rod 9. The first stabilizing rod 9 penetrates the top wall of the housing 1. The pressure plate 7 is located directly above the top arc-shaped structure of the support platform 2. The bottom wall of the pressure plate 7 is set as an arc-shaped structure. The air inlet end of the cylinder 6 is connected to an air pipe 8. One end of the air pipe 8 is connected to an air pump. A three-way pipe is set in the middle of the air pipe 8. The air inlet ends of the two cylinders 6 are connected to the output end of the air pump through the air pipe 8 with the three-way pipe.

[0030] In this embodiment, the starting cylinder 6 controls the pressure plate 7 to move downward and squeeze the two sides of the bottom steel pipe, which can help fix the steel pipe. The stability of the movement of the pressure plate 7 is improved by the first stabilizing rod 9. By starting with one air pump, two cylinders 6 can be started at the same time, which is convenient for synchronous driving.

[0031] An observation window is provided on the front side of the box 1, and feed inlets 3 are provided on both sides of the box 1. The top of the support platform 2 is set with an arc-shaped structure, and the feed inlets 3 correspond to the support platform 2.

[0032] In this embodiment, the pressure testing area is protected around the perimeter during stamping to prevent fragments from flying off the steel pipe surface during the pressure test. Operators can observe through the front observation window, balancing safety and operability, and improving the effectiveness of use.

[0033] It is worth noting that the hydraulic push rod 10, cylinder 6, first laser rangefinder 4, second laser rangefinder 5, and pressure sensor 14 are all based on existing technology, and an operation panel with a processing chip is provided on one side of the housing 1, which can process and calculate the detected values. Those skilled in the art can set it according to actual needs, which will not be elaborated here.

[0034] The first laser rangefinder 4 and the second laser rangefinder 5 are model ZYT-0100, and the pressure sensor 14 is model LTE-100N.

[0035] The working principle of this utility model is as follows: When in use, the steel pipe is horizontally fed into the support platform 2 through the feed port 3, ensuring that the axis of the steel pipe is aligned with the center line of the support platform. The cylinder 6 is activated to control the pressure plate 7 to descend and squeeze and fix the two ends of the steel pipe.

[0036] The distance S1 between the top wall of the box 1 and the topmost wall of the bottom steel pipe is detected by the first laser rangefinder 4. The original diameter S3 of the steel pipe is calculated by the internal system of the operation panel.

[0037] The hydraulic push rod 10 is activated to control the lifting plate 11 to drive the stamping plate 13 to descend, so that the stamping plate 13 squeezes the middle of the steel pipe. At the same time, the pressure sensor 14 collects the pressure value, and the second laser range sensor 5 detects and obtains the distance S4 between the top wall of the box 1 and the top wall of the lifting plate 11. Meanwhile, the internal system of the operation panel calculates the diameter S7 of the steel pipe in real time during the stamping process and compares the values ​​of S7 and S3. When the two values ​​change, it indicates that the steel pipe is deformed at the stamping position. The pressure value of the steel pipe deformation critical compressive strength value can be obtained, and the detection is completed.

[0038] Finally, the following points should be noted: In the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly, and can be mechanical or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change.

[0039] The electronic components and modules used in this utility model can all be parts that are commonly used in the market and can achieve the specific functions in this case. The specific models and sizes can be selected and adjusted according to actual needs.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A steel pipe testing device, comprising a housing (1), characterized in that: The bottom of the inner cavity of the box (1) is fixedly connected to a support platform (2), and the top of the inner cavity of the box (1) is provided with a first laser ranging sensor (4) and a second laser ranging sensor (5). The two sides of the box (1) are provided with feed inlets (3). A hydraulic push rod (10) is fixedly connected to the top center of the box (1). A lifting plate (11) is fixedly connected to the output end of the hydraulic push rod (10). A second stabilizing rod (12) is fixedly connected to both sides of the top of the lifting plate (11). A stamping plate (13) is provided at the bottom of the lifting plate (11). A pressure sensor (14) is fixedly connected between the stamping plate (13) and the lifting plate (11). A third stabilizing rod (15) is fixedly connected around the top of the stamping plate (13). Both sides of the hydraulic push rod (10) are provided with cylinders (6), the output end of the cylinder (6) is connected to a pressure plate (7), the top of the pressure plate (7) is fixedly connected to a first stabilizing rod (9), and the air inlet end of the cylinder (6) is connected to an air pipe (8).

2. The steel pipe testing device according to claim 1, characterized in that: The front side of the box (1) is provided with an observation window, the top of the support platform (2) is set with an arc structure, and the feed port (3) corresponds to the support platform (2).

3. The steel pipe testing device according to claim 1, characterized in that: The first laser rangefinder (4) corresponds to the center line of the top arc-shaped wall of the support platform (2), and the second laser rangefinder (5) corresponds to the top wall of the lifting plate (11).

4. The steel pipe testing device according to claim 1, characterized in that: The two ends of the pressure sensor (14) are fixedly connected to the lifting plate (11) and the stamping plate (13) respectively, and the third stabilizing rod (15) passes through the wall of the lifting plate (11).

5. The steel pipe testing device according to claim 1, characterized in that: The second stabilizer bar (12) penetrates the top wall of the box (1), the stamping plate (13) is set directly above the top arc structure of the support platform (2), and the bottom wall of the stamping plate (13) is set as an arc structure.

6. The steel pipe testing device according to claim 1, characterized in that: The first stabilizing bar (9) penetrates the top wall of the box (1), the pressure plate (7) is set directly above the top arc structure of the support platform (2), and the bottom wall of the pressure plate (7) is set as an arc structure.

7. The steel pipe testing device according to claim 1, characterized in that: One end of the air pipe (8) is connected to the air pump, and a three-way pipe is provided in the middle of the air pipe (8). The air inlet ends of the two cylinders (6) are connected to the output end of the air pump through the air pipe (8) with the three-way pipe.

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