Automatic underwater air pressure visual detection device

Abstract

The utility model discloses an automatic underwater air pressure visual detection device. The device comprises a water injection pool; the positioning base is arranged on the water injection pool in a lifting manner under the driving of an air cylinder; the positioning clamping seat comprises a plurality of fixed clamping plates and movable clamping plates which are grouped, the movable clamping plates are arranged on the guide rails of the positioning base in a driving and sliding mode in the length direction, positioning grooves are formed in the fixed clamping plates and the movable clamping plates, and the pipes are clamped and positioned on one sides of the positioning grooves of the fixed clamping plates and the opposite sides of the positioning grooves of the movable clamping plates; the pressurizing mechanism is arranged on the positioning base in a driving mode in the length direction of the pipe and comprises a pressurizing base, a sealing sleeve piece in butt joint with the end of the pipe and an air inlet connector; and the visual equipment is connected with the top bracket through an equipment base, is arranged at intervals, and is hung above the water injection pool. According to the utility model, the problems of low test result accuracy and low test efficiency of a common mode of carrying out result judgment through manual visual inspection in underwater air pressure detection can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of air tightness detection, in particular to an automatic underwater air pressure visual detection device. Background Art

[0002] Underwater pressure testing devices are common airtightness testing equipment for media transmission pipelines. They perform pipe testing by submerging the pipe in water, passing high-pressure gas through it, and then detecting whether gas bubbles escape from the pipe surface. However, conventional underwater pressure testing results are typically determined through manual visual inspection, resulting in low test accuracy and efficiency. Utility Model Content

[0003] The purpose of the utility model is to provide an automated underwater air pressure visual detection device to solve the problems of low test result accuracy and test efficiency in the common underwater air pressure detection method of manual visual inspection.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: an automated underwater air pressure visual detection device, comprising:

[0005] filling pool;

[0006] A positioning base, which is driven to rise and fall by a cylinder and is arranged on the water injection pool;

[0007] The positioning clamp seat includes a plurality of fixed clamps and movable clamps arranged in parallel in a group. The movable clamps are driven and slid along the length direction by a first cylinder and are arranged on the guide rails of the positioning base. The fixed clamps and the movable clamps are provided with positioning grooves. The positioning grooves on one side of the fixed clamps and the positioning grooves on the opposite side of the movable clamps clamp and position the pipe.

[0008] A pressurizing mechanism, which is driven by a second cylinder along the length direction of the pipe and is arranged on the positioning base, and includes a pressurizing base, a sealing kit connected to the end of the pipe, and an air inlet joint;

[0009] The visual equipment is connected to the top bracket through the equipment base and is arranged at intervals and hung above the water injection pool.

[0010] As a further description of the above technical solution:

[0011] The ends of the plurality of movable clamping plates are vertically positioned on a linkage plate, and the linkage plate is connected to the output shaft of the first cylinder.

[0012] As a further description of the above technical solution:

[0013] The positioning groove includes a U-shaped positioning section at the bottom and an expansion docking section at the top. The size from the top of the U-shaped positioning section to the expansion docking section first decreases and then increases.

[0014] As a further description of the above technical solution:

[0015] An inner sealing ring with an L-shaped longitudinal section extends from the inner wall of the sealing kit. The sealing kit and the inner sealing ring are both flexible and elastic structures. An annular groove is formed between the outer sides of the sealing kit and the inner sealing ring, and the end of the pipe is inserted into the annular groove.

[0016] As a further description of the above technical solution:

[0017] A wedge-shaped or arc-shaped receiving surface is provided on the inner side of the end portion of the inner sealing ring.

[0018] As a further description of the above technical solution:

[0019] A solar panel for powering the visual device is positioned on the device base.

[0020] In summary, due to the adoption of the above technical solution, the present invention has the following advantages compared with the prior art:

[0021] Beneficial effects:

[0022] The utility model automatically clamps and positions each node of the pipe by grouping a fixed clamping plate with a movable clamping plate. The positioning stability is guaranteed by the cooperation of the positioning grooves of the two clamping plates. The movable clamping plate is synchronously driven by the linkage plate to ensure that the clamping force at each part of the pipe is the same, thus avoiding bending of the pipe. The double-layer sealing structure composed of the sealing kit and the inner sealing ring clamps the inner and outer walls of the pipe end to ensure sealing and stable pressurization. The design of the inner sealing ring can increase the pressurization rate. The air tightness of the pipe is monitored in real time during inspection by visual equipment to ensure the accuracy and efficiency of the inspection results. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 This is the main view of an automated underwater air pressure visual detection device.

[0025] Figure 2 This is a top view of an automated underwater air pressure visual detection device.

[0026] Figure 3 A diagram showing the usage of a positioning clamp in an automated underwater air pressure visual detection device.

[0027] Figure 4 This is a structural schematic diagram of the pressurizing mechanism in an automated underwater air pressure visual detection device.

[0028] Legend:

[0029] 1. Water filling tank; 2. Positioning base; 3. Fixed splint; 30. Positioning groove; 31. U-shaped positioning section; 32. Expansion docking section; 4. Movable splint; 5. Guide rail; 6. First cylinder; 7. Linkage plate; 8. Second cylinder; 9. Pressurizing mechanism; 91. Pressurizing base; 92. Sealing kit; 93. Air inlet connector; 94. Inner sealing ring; 95. Annular slot; 10. Top bracket; 11. Equipment base; 12. Visual equipment; 13. Solar panel; 14. Pipe. DETAILED DESCRIPTION

[0030] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0032] See also Figure 1-4 The present invention provides a technical solution: an automated underwater air pressure visual detection device, comprising:

[0033] Filling pool 1;

[0034] A positioning base 2, which is driven by a cylinder to rise and fall and is arranged on the water injection pool 1;

[0035] The positioning clamp includes a plurality of fixed clamps 3 and movable clamps 4 arranged in parallel in a group. The movable clamps 4 are driven and slid along the length direction by a first cylinder 6 and are arranged on the guide rails 5 of the positioning base 2. The fixed clamps 3 and the movable clamps 4 are provided with positioning grooves 30. One side of the positioning groove 30 of the fixed clamp 3 and the side opposite to the positioning groove 30 of the movable clamp 4 clamp and position the pipe 14.

[0036] The pressurizing mechanism 9 is driven by the second cylinder 8 along the length direction of the tube 14 and is arranged on the positioning base 2, and includes a pressurizing base 91, a sealing kit 92 connected to the end of the tube 14, and an air inlet joint 93;

[0037] The visual device 12 is connected to the top bracket 10 via the device base 11 and is arranged at intervals and suspended above the water injection tank 1. In this embodiment, the visual device 12 is a high-definition camera. Five positioning bases 2 and workstations are set in the water injection tank 1. The visual devices 12 are arranged in rows, with a total of 22 units, which can cover a 15-meter-long detection range of the water injection tank. The high-definition images obtained by the visual devices are synchronously transmitted to the high-definition LCD screen in the control room. The AI ​​system detects bubbles and other conditions in the water body of the water injection tank 1, automatically determines the air tightness test results of the pipe 14, and synchronizes them to the screen in real time.

[0038] The ends of several movable clamps 4 are vertically positioned on a linkage plate 7, which is connected to the output shaft of the first cylinder 6. This ensures that the movable clamps 4 move the same distance at each node of the pipe 14, clamping the pipe 14 to the same degree, and avoiding deformation of the pipe 14 caused by uneven clamping, which could affect the results of underwater air pressure and airtightness testing.

[0039] The positioning groove 30 includes a U-shaped positioning section 31 at the bottom and an expanded docking section 32 at the top. The size of the U-shaped positioning section 31 to the expanded docking section 32 first decreases and then increases. This design makes it easier to dock the pipe 14 with the positioning groove 30. After quickly docking the pipe against the top of the expanded docking section 32, the pipe 14 can be placed into the U-shaped positioning section 31. By driving the first cylinder 6, the linkage plate 7 drives the movable clamping plate 4 to move, which then cooperates with the fixed clamping plate 3 to achieve automated clamping and positioning of the pipe 14. Compared with common manual positioning methods, the pipe stability and operating efficiency are improved.

[0040] Extending from the inner wall of the sealing kit 92 is an inner sealing ring 94 with an L-shaped longitudinal cross-section. Both the sealing kit 92 and the inner sealing ring 94 are flexible and elastic structures. An annular groove 95 is formed between the outer sides of the sealing kit 92 and the inner sealing ring 94, and the end of the tube 14 is inserted into the annular groove 95. The double-layer elastic and flexible clamping structure formed by the sealing kit 92 and the inner sealing ring 94 sleeves the inner and outer end surfaces of the tube 14, ensuring the sealing of the end of the tube 14 and preventing any impact on internal pressurization and underwater pressure visual detection.

[0041] A wedge-shaped or arc-shaped receiving surface is provided on the inner side of the end of the inner sealing ring 94 to improve the continuity of the joint of the pipe 14, reduce the velocity loss of the internal pressurized air flow at this point, and through the inward-retracted size design, speed up the pressurized air flow.

[0042] A solar panel 13 for powering the visual device 12 is positioned on the device base 11. The solar panel 13 collects and converts solar energy into electrical energy to power the visual device 12, thereby reducing energy consumption and realizing an energy-saving production concept.

[0043] The working principle of an automated underwater air pressure visual inspection device of this embodiment includes: during inspection, the pipe 14 is positioned in the positioning grooves 30 of the fixed splint 3 and the movable splint 4; the first cylinder 6 is driven to drive the movable splint 4 to move along the length direction, so that the positioning groove 30 and the positioning groove 30 of the fixed splint 3 clamp the pipe 14; the second cylinder 8 is driven to move the pressurizing mechanism 9 toward the pipe 14, and the end of the pipe 14 is sealed and docked with the inner sealing ring 94 through the sealing kit 92; the external air supply equipment is connected through the air inlet connector 93 so that the pressurized air The flow passes through the inner cavity of the pressurizing base 91 and the sealing kit 92, and the pipe 14 is initially pressurized. When the internal pressure reaches the set value, the cylinder drives the positioning base 2 to move downward, so that the pipe 14 is immersed in water, and then the pipe 14 is pressurized to the test pressure value and maintained for the set time. The bubble situation on the surface of the pipe 14 and in the water body is observed through the visual equipment 12, and the results are summarized on the control room screen; after the test is completed, the positioning base 2 rises, the pressurizing mechanism 9 re-pressurizes the inner wall of the pipe 14, and separates the pipe 14 from the movable splint 4, and takes out the pipe 14, thus completing the airtightness test.

[0044] In summary, due to the adoption of the above technical solution, the automated underwater air pressure visual detection device of this embodiment has the following beneficial effects compared to the prior art:

[0045] The utility model automatically clamps and positions each node of the pipe by grouping a fixed clamping plate with a movable clamping plate. The positioning stability is guaranteed by the cooperation of the positioning grooves of the two clamping plates. The movable clamping plate is synchronously driven by the linkage plate to ensure that the clamping force at each part of the pipe is the same, thus avoiding bending of the pipe. The double-layer sealing structure composed of the sealing kit and the inner sealing ring clamps the inner and outer walls of the pipe end to ensure sealing and stable pressurization. The design of the inner sealing ring can increase the pressurization rate. The air tightness of the pipe is monitored in real time during inspection by visual equipment to ensure the accuracy and efficiency of the inspection results.

[0046] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automated underwater air pressure visual detection device, characterized in that: include: filling pool; A positioning base, which is driven to rise and fall by a cylinder and is arranged on the water injection pool; The positioning clamp seat includes a plurality of fixed clamps and movable clamps arranged in parallel in a group. The movable clamps are driven and slid along the length direction by a first cylinder and are arranged on the guide rails of the positioning base. The fixed clamps and the movable clamps are provided with positioning grooves. The positioning grooves on one side of the fixed clamps and the positioning grooves on the opposite side of the movable clamps clamp and position the pipe. A pressurizing mechanism, which is driven by a second cylinder along the length direction of the pipe and is arranged on the positioning base, and includes a pressurizing base, a sealing kit connected to the end of the pipe, and an air inlet joint; The visual equipment is connected to the top bracket through the equipment base and is arranged at intervals and hung above the water injection pool.

2. The automated underwater air pressure visual detection device according to claim 1, characterized in that: The ends of the plurality of movable clamping plates are vertically positioned on a linkage plate, and the linkage plate is connected to the output shaft of the first cylinder.

3. The automated underwater air pressure visual detection device according to claim 1, characterized in that: The positioning groove includes a U-shaped positioning section at the bottom and an expansion docking section at the top. The size from the top of the U-shaped positioning section to the expansion docking section first decreases and then increases.

4. The automated underwater air pressure visual detection device according to claim 1, characterized in that: An inner sealing ring with an L-shaped longitudinal section extends from the inner wall of the sealing kit. The sealing kit and the inner sealing ring are both flexible and elastic structures. An annular groove is formed between the outer sides of the sealing kit and the inner sealing ring, and the end of the pipe is inserted into the annular groove.

5. The automated underwater air pressure visual detection device according to claim 4, characterized in that: A wedge-shaped or arc-shaped receiving surface is provided on the inner side of the end portion of the inner sealing ring.

6. The automated underwater air pressure visual detection device according to claim 1, characterized in that: A solar panel for powering the visual device is positioned on the device base.

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