A pressure testing device for a wind tunnel nozzle seal structure

Abstract

The utility model discloses a kind of wind tunnel nozzle sealing structure pressure testing device, belong to pipeline pressure measurement technical field, including mobile seat and pipeline, the mobile seat is installed with sliding assembly, and the surface of sliding assembly is installed with pressure testing equipment, it is convenient to drive pressure testing equipment to move, the both ends of the mobile seat are installed with support frame, the support frame is provided with the positioning mechanism of providing fixed position to pipeline, the connecting port position of the both ends of the pipeline is installed with sealing assembly, the mobile seat of being set can be integrated with pressure testing equipment and positioning mechanism, so as to not only can carry out pressure test to pipeline sealing, the position of pipeline is fixed simultaneously, not only save the space occupied by equipment, improve the accuracy of pressure testing equipment to pipeline test simultaneously, and the sliding assembly of being set on mobile seat can be conveniently adjusted to the position of pressure testing equipment, thus the flexibility of pressure testing equipment is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of pipeline pressure testing technology, specifically a pressure testing device for a wind tunnel nozzle sealing structure. Background Technology

[0002] The wind tunnel nozzle sealing structure pressure testing device is a specialized testing equipment for wind tunnel nozzle sealing components in aerospace, fluid mechanics and other fields. Its core function is to verify the reliability, sealing performance and pressure resistance of the sealing structure by simulating the pressure environment under real working conditions, so as to ensure the accuracy and safety of wind tunnel tests.

[0003] When existing pressure testing devices are used to test the sealing structure of wind tunnel nozzles, the lack of a fixed pipe position means that other equipment is needed to fix the pipe. This not only increases the amount of equipment used and occupies space during pipe testing, but also makes it inconvenient to perform flexible movement tests on the various connection points of the pipe during the testing process, thus reducing the flexibility of the pressure testing device. Utility Model Content

[0004] The purpose of this invention is to provide a pressure testing device for a wind tunnel nozzle sealing structure. The device integrates the pressure testing equipment and the positioning mechanism via a movable base, enabling pressure testing of the pipe seal while simultaneously fixing the pipe's position. This saves space and improves the accuracy of the pressure testing. Furthermore, the sliding component on the movable base facilitates easy adjustment of the pressure testing equipment's position, thus enhancing its flexibility and addressing the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pressure testing device for a wind tunnel nozzle sealing structure, comprising a movable base and a pipe, wherein a sliding component is installed on the movable base, and a pressure testing device is installed on the surface of the sliding component, which facilitates the movement of the pressure testing device.

[0006] The movable seat is equipped with support frames at both ends, and the support frames are provided with positioning mechanisms that fix the position of the pipeline.

[0007] Sealing components are installed at the connection points at both ends of the pipe, which facilitates sealing of both ends of the pipe.

[0008] Preferably, the sliding assembly includes two sets of electric slide rails, which are mounted on the surface of the movable seat. A slide block is slidably connected to the surface of the electric slide rail, and a mounting plate for facilitating the installation of the pressure testing equipment is fixedly connected to the top of the slide block. The pressure testing equipment moves at the bottom of the support frame via the mounting plate.

[0009] Preferably, the positioning mechanism includes a threaded sleeve and a lead screw. The threaded sleeve is embedded in the upper end of the support frame, and the lead screw is threadedly connected to the inner end of the threaded sleeve. One end of the lead screw is fixedly connected to an adjusting handle, and the other end of the lead screw is movably connected to a positioning seat through a movable part. Both ends of the pipe are engaged with the inner side of the positioning seat.

[0010] Preferably, the positioning seat is arranged symmetrically on the support frame, the positioning seat is arc-shaped, and the inner side wall of the positioning seat is provided with a protective pad to protect the outer wall of the pipe.

[0011] Preferably, the lower end of the positioning seat is integrally formed with a connecting block, the connecting block has a through hole, and the inner cavity of the through hole is movably connected to a positioning rod fixed to the support frame.

[0012] Preferably, the upper end of the support frame is rounded, and the support frame is H-shaped to facilitate the movement of the pressure testing equipment at the lower end of the support frame.

[0013] Preferably, the sealing assembly includes a flange and a sealing cover. The flange is fixed to the ports at both ends of the pipe. The inner side of the sealing cover is installed at the port of the pipe. The outer edge of the sealing cover is fitted to the flange and fixedly connected by fasteners.

[0014] Preferably, the pressure testing equipment includes a compressor, which is mounted on a mounting plate. The compressor is connected to a pre-reserved connection port on a pipeline via a connecting pipe. A pressure sensor for real-time monitoring of the internal pressure of the pipeline is installed near the port on the pipeline.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This utility model provides a pressure testing device for a wind tunnel nozzle sealing structure. The pressure testing equipment and positioning mechanism can be integrated into one unit through the movable seat, which can not only perform pressure testing on the pipe seal, but also fix the position of the pipe. This not only saves the space occupied by the equipment, but also improves the accuracy of the pressure testing equipment for the pipe. Furthermore, the sliding component on the movable seat can easily adjust the position of the pressure testing equipment, thus enhancing the flexibility of the pressure testing equipment.

[0017] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained through the structures pointed out in the description and the accompanying drawings. 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 sliding component and pressure testing equipment of this utility model;

[0020] Figure 3 This is a schematic diagram of the positioning mechanism structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the sealing component structure of this utility model.

[0022] The following are the labeling elements in the diagram: 1. Moving seat; 2. Pipe; 3. Sliding assembly; 31. Electric slide rail; 32. Slide seat; 33. Mounting plate; 4. Pressure testing equipment; 41. Compressor; 42. Connecting pipe; 43. Pressure sensor; 5. Support frame; 6. Positioning mechanism; 61. Threaded sleeve; 62. Lead screw; 63. Adjusting handle; 64. Positioning seat; 7. Sealing assembly; 71. Flange; 72. Sealing cover; 73. Fastener; 8. Protective gasket; 9. Connecting block; 10. Through hole; 11. Positioning rod. Detailed Implementation

[0023] 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.

[0024] This utility model provides, for example Figures 1-4 The pressure testing device for a wind tunnel nozzle sealing structure shown includes a movable base 1 and a pipe 2. A sliding component 3 is installed on the movable base 1, and a pressure testing device 4 is mounted on the surface of the sliding component 3, facilitating the movement of the pressure testing device 4. Support frames 5 are installed at both ends of the movable base 1, and positioning mechanisms 6 are provided on the support frames 5 to fix the position of the pipe 2. Sealing components 7 are installed at the connection positions at both ends of the pipe 2, providing a sealing effect at both ends of the pipe 2. The movable base 1 integrates the pressure testing device 4 and the positioning mechanism 6 into one unit, thereby not only performing pressure testing on the pipe 2 seal but also fixing the position of the pipe 2. This not only saves space occupied by the equipment but also improves the accuracy of the pressure testing device 4 in testing the pipe 2. Furthermore, the sliding component 3 on the movable base 1 allows for easy adjustment of the position of the pressure testing device 4, thus enhancing the flexibility of the pressure testing device 4. The positioning mechanism 6 and the sealing component 7 ensure the stability and sealing of the testing process, avoiding test errors caused by leakage.

[0025] The sliding assembly 3 includes two sets of electric slide rails 31. The electric slide rails 31 are mounted on the surface of the movable seat 1. A slide block 32 is slidably connected to the surface of the electric slide rails 31. A mounting plate 33 is fixedly connected to the top of the slide block 32 to facilitate the installation of the pressure testing equipment 4. The pressure testing equipment 4 moves at the bottom of the support frame 5 through the mounting plate 33. The electric slide rails 31 drive the slide block 32 to slide along the rail. The slide block 32 drives the pressure testing equipment 4 (such as a compressor 41) to move at the bottom of the support frame 5 through the mounting plate 33, realizing precise adjustment of the position of the pressure testing equipment 4. Therefore, it realizes automated movement, eliminates the need for manual handling of the equipment, and improves testing efficiency. The sliding range covers the bottom of the support frame 5, ensuring that the pressure testing equipment 4 can reach each test point of the pipeline 2.

[0026] The positioning mechanism 6 includes a threaded sleeve 61 and a lead screw 62. The threaded sleeve 61 is embedded in the upper end of the support frame 5. The lead screw 62 is threaded inside the threaded sleeve 61. One end of the lead screw 62 is fixedly connected to an adjusting handle 63, and the other end of the lead screw 62 is movably connected to a positioning seat 64 through a movable part. Both ends of the pipe 2 are engaged with the inner side of the positioning seat 64. Rotating the adjusting handle 63 causes the lead screw 62 to rotate inside the threaded sleeve 61. The axial movement of the lead screw 62 pushes the positioning seat 64 closer to or away from the pipe 2. The inner side of the positioning seat 64 engages with the pipe 2. The pipe 2 is clamped and fixed through threaded transmission. The threaded transmission provides a stable clamping force to ensure that the pipe 2 is firmly fixed. The manual adjusting handle 63 is easy to operate and is suitable for quick positioning of pipes 2 of different diameters.

[0027] The positioning seat 64 is symmetrically arranged on the support frame 5 and is arc-shaped. The inner side wall of the positioning seat 64 is provided with a protective pad 8 to protect the outer wall of the pipe 2. The lower end of the positioning seat 64 is integrally formed with a connecting block 9. The connecting block 9 has a through hole 10. The inner cavity of the through hole 10 is movably connected to a positioning rod 11 fixed to the support frame 5. The arc-shaped positioning seat 64 fits against the outer wall of the pipe 2. The protective pad 8 (such as rubber material) buffers the clamping force and avoids scratches on the surface of the pipe 2. The positioning seat 64 is upper-positioned on the support frame 5 through the connecting block 9 and the positioning rod 11 to ensure that it does not deviate when moving. The positioning rod 11 restricts the movement trajectory of the positioning seat 64 to ensure stability when clamping.

[0028] The upper end of the support frame 5 is rounded, which reduces the risk of collision when the equipment is moved. The support frame 5 is H-shaped, which facilitates the movement of the pressure testing equipment 4 at the lower end of the support frame 5. The structure is strengthened and can withstand the pressure when the pipeline 2 is fixed. The rounded corners and H-shaped design optimize the movement path of the pressure testing equipment 4 and improve operational safety.

[0029] The sealing assembly 7 includes a flange 71 and a sealing cover 72. The flange 71 is fixed to the ports at both ends of the pipe 2. The inner side of the sealing cover 72 is installed at the port of the pipe 2. The outer edge of the sealing cover 72 is fitted to the flange 71 and fixedly connected by fasteners 73. The flange 71 is fixed to the port of the pipe 2. The inner side of the sealing cover 72 fits against the port of the pipe 2, and the outer side is pressed against the flange 71 by fasteners 73 (such as bolts) to form a sealing surface and prevent the pressure medium from leaking out.

[0030] The pressure testing device 4 includes a compressor 41, which is mounted on a mounting plate 33. The compressor 41 is connected to a pre-reserved connection port on the pipeline 2 via a connecting pipe 42. A pressure sensor 43 is installed on the pipeline 2 near the port for real-time monitoring of the internal pressure of the pipeline 2. The compressor 41 injects a pressure medium (such as gas / liquid) into the pipeline 2 through the connecting pipe 42. The pressure sensor 43 on the pipeline 2 monitors the internal pressure in real time. The compressor 41 provides a stable pressure source, and the pressure sensor 43 monitors in real time to ensure test accuracy. The connection design of the connecting pipe 42 (set as a flexible hose) and the pre-reserved interface ensures efficient transmission of the pressure medium, thereby realizing the pressure test operation for sealing the pipeline 2.

[0031] In practical use, first, place the pipe 2 to be tested between the support frames 5 at both ends of the movable seat 1. Rotate the adjusting handle 63 of the positioning mechanism 6, and the lead screw 62 rotates in the threaded sleeve 61, pushing the positioning seat 64 to move. The arc-shaped positioning seat 64 and its inner protective pad 8 clamp and fix the pipe 2. The positioning rod 11 ensures that the positioning seat 64 is stable and does not shift. Next, the inner side of the sealing cover 72 is attached to the end of the pipe 2 and fixed to the flange 71 by the fastener 73, completing the sealing treatment at both ends of the pipe 2. Subsequently, the pressure testing equipment 4, such as the compressor 41, is installed on the mounting plate 33 on the top of the slide 32. The slide 32 is driven by the electric slide rail 31, so that... The pressure testing equipment 4 is moved to a suitable position, and the compressor 41 is connected to the reserved interface of the pipeline 2 via the connecting pipe 42. The compressor 41 is started to inject pressure medium into the pipeline 2. The pressure sensor 43 on the pipeline 2 monitors the internal pressure changes in real time. During the test, if the test position needs to be adjusted, the equipment can be moved by the electric slide rail 31. If a pipeline 2 of a different diameter needs to be replaced, the positioning mechanism 6 can be adjusted to quickly adapt it. This device efficiently completes the pressure test of the pipeline 2 seal through automated movement, stable positioning and reliable sealing. It not only saves the space occupied by the equipment, but also improves the accuracy of the pressure testing equipment 4 in testing the pipeline 2.

[0032] 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 testing device for a wind tunnel nozzle sealing structure, comprising a movable base (1) and a pipe (2), characterized in that: The movable seat (1) is equipped with a sliding component (3), and a pressure testing device (4) is installed on the surface of the sliding component (3), which facilitates the movement of the pressure testing device (4). The movable seat (1) is equipped with support frames (5) at both ends, and the support frames (5) are provided with positioning mechanisms (6) to fix the position of the pipe (2); Sealing components (7) are installed at the connection points at both ends of the pipe (2), which facilitates sealing of both ends of the pipe (2).

2. The pressure testing device for the sealing structure of a wind tunnel nozzle according to claim 1, characterized in that: The sliding assembly (3) includes two sets of electric slide rails (31). The electric slide rails (31) are mounted on the surface of the movable seat (1). A slide block (32) is slidably connected to the surface of the electric slide rails (31). A mounting plate (33) for easy installation of the pressure testing device (4) is fixedly connected to the top of the slide block (32). The pressure testing device (4) moves at the bottom of the support frame (5) through the mounting plate (33).

3. The pressure testing device for the sealing structure of a wind tunnel nozzle according to claim 2, characterized in that: The positioning mechanism (6) includes a threaded sleeve (61) and a lead screw (62). The threaded sleeve (61) is embedded in the upper end of the support frame (5). The lead screw (62) is threaded inside the threaded sleeve (61). One end of the lead screw (62) is fixedly connected to an adjusting handle (63). The other end of the lead screw (62) is movably connected to a positioning seat (64) through a movable part. Both ends of the pipe (2) are engaged with the inner side of the positioning seat (64).

4. The pressure testing device for the sealing structure of a wind tunnel nozzle according to claim 3, characterized in that: The positioning seat (64) is arranged symmetrically on the support frame (5). The positioning seat (64) is arc-shaped. The inner side wall of the positioning seat (64) is provided with a protective pad (8) to protect the outer wall of the pipe (2).

5. The pressure testing device for the sealing structure of a wind tunnel nozzle according to claim 4, characterized in that: The lower end of the positioning seat (64) is integrally formed with a connecting block (9), and a through hole (10) is provided on the connecting block (9). The inner cavity of the through hole (10) is movably connected to a positioning rod (11) fixed between the support frame (5).

6. The pressure testing device for the sealing structure of a wind tunnel nozzle according to claim 5, characterized in that: The upper end of the support frame (5) is rounded, and the support frame (5) is H-shaped, which facilitates the movement of the pressure testing equipment (4) at the lower end of the support frame (5).

7. The pressure testing device for the sealing structure of a wind tunnel nozzle according to claim 1, characterized in that: The sealing assembly (7) includes a flange (71) and a sealing cover (72). The flange (71) is fixed to the ports at both ends of the pipe (2). The inner side of the sealing cover (72) is installed at the port of the pipe (2). The outer edge of the sealing cover (72) is attached to the flange (71) and fixedly connected by fasteners (73).

8. The pressure testing device for the sealing structure of a wind tunnel nozzle according to claim 1, characterized in that: The pressure testing device (4) includes a compressor (41), which is mounted on a mounting plate (33). The compressor (41) is connected to a pre-reserved connection port on the pipe (2) via a connecting pipe (42). A pressure sensor (43) for real-time monitoring of the internal pressure of the pipe (2) is provided on the pipe (2) near the port.

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