Pressurizing cylinder airtightness intelligent detection device integrated with pressure sensor

Abstract

The utility model relates to the technical field of pressure cylinder airtightness detection, and discloses a pressure cylinder airtightness intelligent detection device integrated with a pressure sensor, which comprises a detection box, a sealing cover is arranged at the top of the detection box, uniformly distributed support columns are fixedly connected in the detection box, and a connecting plate is fixedly connected to the tops of the support columns. A supporting plate is fixedly connected between the connecting plates, the top of the connecting plate on the right side is fixedly connected with a two-way motor, and the output end of the two-way motor is fixedly connected with a lead screw. The bidirectional motor drives the lead screw to rotate, so that the clamping plate in threaded connection with the lead screw can do linear motion along the guide column, and clamping and loosening actions of the pressure cylinder placed on the supporting plate are achieved. In this way, it can be ensured that the position of the pressure cylinder is fixed in the detection process, a stable basis is provided for follow-up accurate detection, and it is avoided that the accuracy of detection results is affected by moving of the pressure cylinder.

Description

Technical Field

[0001] This utility model relates to the field of airtightness detection technology for booster cylinders, specifically to an intelligent airtightness detection device for booster cylinders that integrates a pressure sensor. Background Technology

[0002] The application scope of booster cylinders is gradually expanding, covering multiple fields such as shipbuilding, construction machinery, and agricultural machinery. In the aerospace field, they are used for gas propulsion systems and pressure testing; in the oil and gas industry, they are used for pipeline pressure testing and wellhead equipment testing; in automobile manufacturing, they are used for brake system testing and tire inflation; in the medical device field, they are used for pneumatic control and pressure testing of medical equipment; and they are also used in laboratory gas pressurization experiments and pressure calibration in scientific research.

[0003] With the continuous advancement of sensor technology, high-precision and high-stability pressure sensors have been widely applied. Integrated pressure sensors can accurately measure pressure changes within the booster cylinder in real time, providing accurate data support for airtightness testing. By combining pressure sensors with data acquisition and processing systems, real-time monitoring and analysis of the booster cylinder's airtightness can be achieved.

[0004] During processes such as airtightness testing, if the position of the booster cylinder shifts, it may cause the connection between the pressure sensor and the booster cylinder to become loose or experience uneven stress, resulting in deviations in the pressure data collected by the pressure sensor. For example, even a slight loosening of the connection may cause pressure leakage, leading to a lower detected pressure value than the actual pressure, and thus a misjudgment that the booster cylinder has an airtightness problem.

[0005] To address the aforementioned issues, an intelligent detection device for the airtightness of a booster cylinder integrating a pressure sensor is proposed. Utility Model Content

[0006] The purpose of this invention is to provide an intelligent detection device for the airtightness of a booster cylinder with an integrated pressure sensor. This solves the problem in the prior art where, during airtightness testing, movement of the booster cylinder can lead to loosening or uneven stress at the connection between the pressure sensor and the cylinder, causing deviations in the pressure data collected by the sensor. For example, even slight loosening at the connection point can cause pressure leakage, resulting in a lower detected pressure value than the actual pressure, thus misjudging the booster cylinder as having an airtightness problem.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an intelligent detection device for the airtightness of a booster cylinder integrating a pressure sensor, comprising a detection box, a sealing cover on the top of the detection box, evenly distributed support columns fixedly connected inside the detection box, a connecting plate fixedly connected to the top of the support columns, support plates fixedly connected between the connecting plates, a bidirectional motor fixedly connected to the top of the right-side connecting plate, a lead screw fixedly connected to the output end of the bidirectional motor, evenly distributed limiting blocks fixedly connected to the top of the connecting plate, and the limiting blocks being rotatably connected to the lead screw, a guide column rotatably connected inside the right-side limiting block, a clamping plate threadedly connected to the outer wall of the lead screw, and one end of the clamping plate being slidably connected to the guide column, a booster cylinder on the top of the support plate, and a detection assembly inside the detection box.

[0008] By adopting the above technical solution, the guide column guides the clamping plate, the limiting block limits and controls the clamping plate, and the support plate supports and fixes the two connecting plates.

[0009] As a further description of the above technical solution: the detection component includes an electric slide rail, which is fixedly connected to the inner walls of the left and right sides of the detection box. A sliding block is slidably connected to the outer wall of the electric slide rail. An electric push rod is fixedly connected to one end of the sliding block. A push plate is fixedly connected to the output end of the electric push rod. An integrated pressure sensor is fixedly connected to one end of the push plate.

[0010] By adopting the above technical solution, the airtightness of the booster cylinder is detected by integrating a pressure sensor.

[0011] As a further description of the above technical solution: a fixed sleeve is fixedly connected to the bottom of the sealing cover, and a telescopic sleeve is slidably connected to the inner wall of the bottom of the fixed sleeve.

[0012] By adopting the above technical solution, the telescopic sleeve slides on the inner wall of the fixed sleeve, and the tail end of the telescopic sleeve has a limit plate for limit control.

[0013] As a further description of the above technical solution: a connecting plate is fixedly connected to the bottom of the telescopic sleeve, and a pressure sensor is fixedly connected to the bottom of the connecting plate.

[0014] By adopting the above technical solution, simultaneous detection is performed using a barometric pressure sensor.

[0015] As a further description of the above technical solution: a motor is fixedly connected to the inner wall of the top of the fixed sleeve, and a threaded rod is fixedly connected to the output end of the motor.

[0016] By adopting the above technical solution, the threaded rod is rotated by a motor.

[0017] As a further description of the above technical solution: the bottom outer ring of the threaded rod is threadedly connected to a nut pair, and the bottom of the nut pair is fixedly connected to a movable seat.

[0018] By adopting the above technical solution, the threaded rod rotates, driving the nut pair and the moving seat to move.

[0019] As a further description of the above technical solution: the left and right sides of the movable seat are both internally connected to limit posts that slide through, and the limit posts are fixedly connected to the inner wall of the fixed sleeve.

[0020] By adopting the above technical solution, the moving seat is limited and controlled by the limiting column.

[0021] As a further description of the above technical solution: a connecting column is fixedly connected to the bottom of the movable seat, and the connecting column is fixedly connected to the telescopic sleeve.

[0022] By adopting the above technical solution, the movable seat moves, which in turn moves the connecting column.

[0023] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0024] 1. The intelligent detection device for the airtightness of a booster cylinder with an integrated pressure sensor provided by this utility model first drives a lead screw to rotate via a bidirectional motor, enabling a clamping plate threadedly connected to the lead screw to move linearly along a guide post, thereby clamping and releasing the booster cylinder placed on the support plate. This ensures the booster cylinder's fixed position during the detection process, providing a stable foundation for subsequent accurate detection and avoiding the impact of booster cylinder position movement on the accuracy of the detection results.

[0025] 2. The intelligent airtightness detection device for a booster cylinder with an integrated pressure sensor provided by this utility model detects the internal pressure of the booster cylinder through an integrated pressure sensor and the air pressure in the sealed space above the booster cylinder through an air pressure sensor. Abnormal changes in air pressure detected by the air pressure sensor will also be detected. The data detected by the two sensors are transmitted to an external control system for detection at different locations. The control system can determine whether the airtightness of the booster cylinder is qualified according to a preset range, thus realizing accurate detection and judgment of the airtightness of the booster cylinder. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall cross-section of the present invention;

[0027] Figure 2 This is a schematic diagram of the lead screw structure of this utility model;

[0028] Figure 3 This is a schematic diagram of the structure of the electric actuator of this utility model;

[0029] Figure 4 This is a cross-sectional structural diagram of the fixing sleeve of this utility model.

[0030] In the diagram: 1. Detection box; 2. Sealing cover; 3. Fixing sleeve; 4. Electric slide rail; 5. Sliding block; 6. Support column; 7. Connecting plate; 8. Support plate; 9. Pressure booster cylinder; 10. Bidirectional motor; 11. Lead screw; 12. Limiting block; 13. Clamping plate; 14. Guide column; 15. Electric push rod; 16. Pushing disc; 17. Integrated pressure sensor; 18. Motor; 19. Limiting column; 20. Threaded rod; 21. Nut pair; 22. Moving seat; 23. Connecting column; 24. Connecting disc; 25. Air pressure sensor; 26. Telescopic sleeve. Detailed Implementation

[0031] 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.

[0032] To further understand the contents of this utility model, a detailed description of this utility model will be provided with reference to the accompanying drawings.

[0033] Reference Figures 1-4 The present invention discloses an intelligent detection device for the airtightness of a booster cylinder with an integrated pressure sensor, comprising a detection box 1, a sealing cover 2 on the top of the detection box 1, evenly distributed support columns 6 fixedly connected inside the detection box 1, a connecting plate 7 fixedly connected to the top of the support columns 6, a support plate 8 fixedly connected between the connecting plates 7, a bidirectional motor 10 fixedly connected to the top of the right connecting plate 7, a lead screw 11 fixedly connected to the output end of the bidirectional motor 10, evenly distributed limiting blocks 12 fixedly connected to the top of the connecting plate 7, and the limiting blocks 12 are rotatably connected to the lead screw 11, a guide column 14 is rotatably connected inside the right limiting block 12, a clamping plate 13 is threadedly connected to the outer wall of the lead screw 11, and one end of the clamping plate 13 is slidably connected to the guide column 14, a booster cylinder 9 is provided on the top of the support plate 8, and a detection assembly is provided inside the detection box 1.

[0034] The detection component includes an electric slide rail 4, which is fixedly connected to the inner walls of the left and right sides of the detection box 1. A sliding block 5 is slidably connected to the outer wall of the electric slide rail 4. An electric push rod 15 is fixedly connected to one end of the sliding block 5. A push plate 16 is fixedly connected to the output end of the electric push rod 15. An integrated pressure sensor 17 is fixedly connected to one end of the push plate 16. A fixed sleeve 3 is fixedly connected to the bottom of the sealing cover 2. A telescopic sleeve 26 is slidably connected to the inner wall of the bottom of the fixed sleeve 3. A connecting plate 24 is fixedly connected to the bottom of the telescopic sleeve 26. A pressure sensor 25 is fixedly connected to the bottom of the connecting plate 24. A motor 18 is fixedly connected to the inner wall of the top of the fixed sleeve 3. A threaded rod 20 is fixedly connected to the output end of the motor 18. A nut pair 21 is threadedly connected to the outer ring of the bottom of the threaded rod 20. A movable seat 22 is fixedly connected to the bottom of the nut pair 21. Limiting posts 19 are slidably connected through the interior of both sides of the movable seat 22. The limiting posts 19 are fixedly connected to the inner wall of the fixed sleeve 3. A connecting post 23 is fixedly connected to the bottom of the movable seat 22. The connecting post 23 is fixedly connected to the telescopic sleeve 26.

[0035] In actual operation, before conducting the airtightness test on the booster cylinder 9, first open the sealing cover 2 and place the booster cylinder 9 stably on the support plate 8. The model of the bidirectional motor 10 can be selected according to the actual needs, with appropriate torque and speed, to ensure stable driving of the lead screw 11. After the bidirectional motor 10 is powered on and started, its output shaft drives the lead screw 11 to rotate. Since the limit block 12 is rotatably connected to the lead screw 11, it plays the role of supporting and positioning the lead screw 11. The clamping plate 13 is threadedly connected to the lead screw 11, and one end of the clamping plate 13 is slidably connected to the guide post 14. The guide post 14 provides guidance for the movement of the clamping plate 13, preventing the clamping plate 13 from rotating during movement. The rotation of the lead screw 11 will be converted into the linear movement of the clamping plate 13 along the guide post 14. According to the forward and reverse rotation of the bidirectional motor 10, the clamping plate 13 can move left and right, thereby realizing the clamping and releasing action of the booster cylinder 9 placed on the support plate 8, ensuring that the booster cylinder 9 is fixed in position during the testing process.

[0036] After clamping the booster cylinder 9, cover it with the sealing cap 2 to create a relatively sealed testing environment. When the booster cylinder 9 is running and the electric slide rail 4 is powered on, the drive mechanism inside the electric slide rail 4 will cause the sliding block 5 to slide left and right on the track of the electric slide rail 4. The drive mechanism of the electric slide rail 4 can use a common motor with a gear and rack transmission. The selection of the motor needs to consider the moving speed and load requirements of the sliding block 5 to meet the testing requirements. The sliding block 5 is fixedly connected to the electric push rod 15, so the electric push rod 15 will move synchronously with the sliding block 5. When the sliding block 5 moves to the predetermined position, the electric push rod 15 is powered on and started. The stroke of the electric push rod 15 can be adjusted according to the actual testing location of the booster cylinder 9. Its output shaft pushes the push plate 16, which in turn drives the integrated pressure sensor 17 closer to the booster cylinder 9, allowing the integrated pressure sensor 17 to contact the testing location of the booster cylinder 9, preparing for the detection of the internal pressure of the booster cylinder 9.

[0037] While the integrated pressure sensor 17 is preparing to detect the internal pressure of the booster cylinder 9, the output shaft of the motor 18 drives the threaded rod 20 to rotate. The motor 18 can also be selected with appropriate power and speed according to actual needs. Since the nut assembly 21 is threadedly connected to the threaded rod 20, and the limiting posts 19 on both sides of the moving seat 22 are fixedly connected to the inner wall of the fixed sleeve 3, restricting the rotation of the moving seat 22, the rotation of the threaded rod 20 will cause the nut assembly 21 to drive the moving seat 22 to move vertically up and down along the limiting posts 19. The moving seat 22 is fixedly connected to the telescopic sleeve 26 via the connecting post 23. The up and down movement of the moving seat 22 will realize the extension and contraction of the telescopic sleeve 26, driving the air pressure sensor 25 to move, enabling it to accurately detect the air pressure in the sealed space above the booster cylinder 9.

[0038] When the booster cylinder 9 is operating normally and has good airtightness, the air pressure in the sealed space above the booster cylinder 9, detected by the air pressure sensor 25, should also remain stable. If there is a leak in the booster cylinder 9, the internal pressure of the booster cylinder 9 will drop, and the pressure change detected by the integrated pressure sensor 17 will exceed the allowable range. At the same time, the leaked gas in the booster cylinder 9 will cause the air pressure in the sealed space above to rise, and the air pressure change detected by the air pressure sensor 25 will also be abnormal. By transmitting the data detected by the integrated pressure sensor 17 and the air pressure sensor 25 to the external control system, the control system can determine whether the airtightness of the booster cylinder 9 is qualified based on the preset normal pressure change range and air pressure change range.

[0039] Working principle: Open the sealing cover 2, place the booster cylinder 9 on the support plate 8, and start the bidirectional motor 10 after power is turned on. Its output shaft drives the lead screw 11 to rotate. Since the limit block 12 is rotatably connected to the lead screw 11, and the clamping plate 13 is threadedly connected to the lead screw 11, and one end of the clamping plate 13 is slidably connected to the guide post 14, the rotation of the lead screw 11 is converted into the linear movement of the clamping plate 13 along the guide post 14. According to the forward and reverse rotation of the bidirectional motor 10, the clamping plate 13 can move left and right, thereby realizing the clamping and releasing action of the booster cylinder 9 placed on the support plate 8, ensuring that the booster cylinder 9 is fixed in position during the testing process. After the sealing cover 2 is closed, the booster cylinder 9 runs. After the electric slide rail 4 is powered on, its internal drive device will drive the sliding block 5 to slide left and right on the track of the electric slide rail 4. The sliding block 5 is fixedly connected to the electric push rod 15, so the electric push rod 15 will move synchronously with the sliding block 5. When the sliding block 5 moves to the predetermined position, the electric push rod 15 is powered on and started. Its output shaft pushes the push plate 16, which in turn moves the integrated pressure sensor 17 closer to the booster cylinder 9, allowing the integrated pressure sensor 17 to contact the detection part of the booster cylinder 9, preparing for the detection of the internal pressure of the booster cylinder 9. The output shaft of the motor 18 drives the threaded rod 20 to rotate. Since the nut pair 21 is threadedly connected to the threaded rod 20, and the limiting posts 19 on the left and right sides of the moving seat 22 are fixedly connected to the inner wall of the fixed sleeve 3, restricting the rotation of the moving seat 22, the rotation of the threaded rod 20 will cause the nut pair 21 to drive the moving seat 22 to move up and down linearly along the limiting posts 19. The moving seat 22 is fixedly connected to the telescopic sleeve 26 through the connecting post 23. The up and down movement of the moving seat 22 will realize the extension and contraction of the telescopic sleeve 26, driving the air pressure sensor 25 to move. The air pressure in the sealed space above the booster cylinder 9 detected by the air pressure sensor 25 should also remain stable. If there is a leak in the booster cylinder 9, the internal pressure of the booster cylinder 9 will drop, and the pressure change detected by the integrated pressure sensor 17 will exceed the allowable range. At the same time, the leaking gas in the booster cylinder 9 will increase the air pressure in the upper sealed space, and the air pressure change detected by the air pressure sensor 25 will also be abnormal. By transmitting the data detected by the integrated pressure sensor 17 and the air pressure sensor 25 to the external control system, the control system can determine whether the airtightness of the booster cylinder 9 is qualified based on the preset normal pressure change range and air pressure change range.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pressure sensor integrated supercharged cylinder air tightness intelligent detection device, comprising a detection box (1), characterized in that: The top of the test box (1) is provided with a sealing cover (2). The test box (1) is fixedly connected with evenly distributed support columns (6). The top of the support columns (6) is fixedly connected with a connecting plate (7). The connecting plates (7) are fixedly connected with a support plate (8). The top of the connecting plate (7) on the right side is fixedly connected with a bidirectional motor (10). The output end of the bidirectional motor (10) is fixedly connected with a lead screw (11). The top of the connecting plate (7) is fixedly connected with evenly distributed limit blocks (12). The limit blocks (12) are rotatably connected to the lead screw (11). The inside of the limit blocks (12) on the right side is rotatably connected with a guide column (14). The outer wall of the lead screw (11) is threaded with a clamping plate (13). One end of the clamping plate (13) is slidably connected to the guide column (14). The top of the support plate (8) is provided with a booster cylinder (9). The test box (1) is provided with a test assembly.

2. The integrated pressure sensor's boosted cylinder air tightness intelligent detection device according to claim 1, characterized in that: The detection assembly includes an electric slide rail (4), which is fixedly connected to the inner walls of the left and right sides of the detection box (1). A sliding block (5) is slidably connected to the outer wall of the electric slide rail (4). An electric push rod (15) is fixedly connected to one end of the sliding block (5). A push plate (16) is fixedly connected to the output end of the electric push rod (15). An integrated pressure sensor (17) is fixedly connected to one end of the push plate (16). A fixed sleeve (3) is fixedly connected to the bottom of the sealing cover (2). A motor (18) is fixedly connected to the inner wall of the top of the fixed sleeve (3). A threaded rod (20) is fixedly connected to the output end of the motor (18). The electric slide rail (4) moves first, and then the motor (18) moves.

3. The integrated pressure sensor's boosted cylinder air tightness intelligent detection device according to claim 2, characterized in that: The bottom inner wall of the fixed sleeve (3) is slidably connected to the telescopic sleeve (26).

4. The integrated pressure sensor's boosted cylinder air tightness intelligent detection device according to claim 3, characterized in that: The bottom of the telescopic sleeve (26) is fixedly connected to a connecting plate (24).

5. The integrated pressure sensor's boosted cylinder air tightness intelligent detection device according to claim 4, characterized in that: A pressure sensor (25) is fixedly connected to the bottom of the connecting plate (24).

6. The integrated pressure sensor's boosted cylinder air tightness intelligent detection device according to claim 2, characterized in that: The bottom outer ring of the threaded rod (20) is threaded with a nut pair (21), and the bottom of the nut pair (21) is fixedly connected with a movable seat (22).

7. The integrated pressure sensor's boosted cylinder air tightness intelligent detection device according to claim 6, characterized in that: The movable seat (22) has a limit post (19) that is slidably connected through the interior of both sides, and the limit post (19) is fixedly connected to the inner wall of the fixed sleeve (3).

8. The integrated pressure sensor's boosted cylinder air tightness intelligent detection device according to claim 6, characterized in that: The bottom of the movable seat (22) is fixedly connected to a connecting column (23), and the connecting column (23) is fixedly connected to the telescopic sleeve (26).

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