Pressure test device for aerospace rubber sealing element

Abstract

The invention discloses a pressure test device for a spaceflight rubber sealing element, and relates to the technical field of mechanical engineering.The pressure test device for the spaceflight rubber sealing element comprises a box body, a working groove is formed in the surface of the box body, a workbench is arranged on the inner wall of the working groove of the box body, and an air pressure pipe is arranged on the inner wall of the upper portion of the working groove of the box body; a detection groove for providing a detection space for rubber ring detection is formed in the surface of the workbench, a test block and a main body rod for fixing a rubber ring are arranged in the detection groove, and a first push block for stretching the rubber sealing ring is arranged at the top of the test block; the rubber sealing ring is automatically installed in the clamping groove of the test block through cooperative use of the first push block and the surface pressing block, the tested rubber sealing ring is automatically disassembled through cooperative use of the second push block and the surface pressing block, and the movable installation and disassembly system can rapidly complete installation and disassembly work of the rubber ring. And tedious manual operation is not needed.

Description

Technical Field

[0001] This invention relates to the field of mechanical engineering technology, specifically to a pressure resistance testing device for aerospace rubber seals. Background Technology

[0002] The pressure resistance testing device for aerospace rubber seals is a specialized testing equipment designed to simulate the sealing performance of spacecraft under extreme pressure environments. It applies precisely controlled static or dynamic pressure to rubber seals to test their sealing reliability, pressure resistance limit, and long-term stability under high and low pressure, vacuum, or alternating load conditions. The core function of this device is to ensure that seals effectively prevent media leakage in critical components of spacecraft such as fuel systems, cabin structures, and life support systems, thus guaranteeing the safety and functional integrity of the spacecraft during launch, on-orbit operation, and reentry.

[0003] The workflow of the pressure resistance testing device for aerospace rubber seals begins with clamping and sealing. The operator precisely installs the rubber seal to be tested into a special fixture or simulated chamber to ensure that an initial seal is formed. Then, the parameter setting and simulation stage begins. The control system sets the target pressure curve and evacuates or injects a medium. The core pressurization and pressure holding stage gradually applies pressure through a hydraulic or pneumatic system. High-precision sensors monitor the pressure decay and seal deformation in real time to determine whether a leak has occurred.

[0004] Manual installation makes it difficult to precisely control the pre-compression, torsion, and eccentricity of the sealing ring. Even slight assembly deviations can lead to distorted test data, failing to accurately reflect the performance of the seal. Furthermore, aerospace rubber seals are often made of high-hardness, large-size, or special materials. Manual installation and disassembly require a great deal of physical strength and are easily scratched by clamps or permanently deformed, thus becoming scrap parts and resulting in high cost waste. Summary of the Invention

[0005] Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a pressure resistance testing device for aerospace rubber seals, which solves the problem of difficult installation of rubber rings mentioned in the background art.

[0006] Technical solution To achieve the above objectives, the present invention provides the following technical solution: a pressure resistance testing device for aerospace rubber seals, comprising a housing, a working groove on the surface of the housing, a worktable at the bottom of the inner wall of the working groove, a pneumatic pipe on the upper inner wall of the working groove, a testing groove on the surface of the worktable providing testing space for rubber ring testing, a test block for fixing the rubber ring inside the testing groove, a first push block for stretching the rubber seal on the top of the test block, and a pressure block on the surface of the worktable for pushing the stretched first push block into the main body rod.

[0007] Preferably, the interior of the housing has a first slot, and a circular sliding plate is slidably connected inside the first slot. An electric telescopic rod is installed inside the housing, and the circular sliding plate is fixedly connected to the output shaft of the electric telescopic rod. A detection slot is formed on the surface of the workbench, and a test block is slidably connected inside the detection slot. A second slot is formed on the inner wall of the detection slot, and the second slot communicates with the first slot. A main rod is slidably connected inside the second slot, and a stop block is fixedly connected to the inner wall of the second slot. A main spring is fixedly connected to the upper surface of the stop block on the inner wall of the second slot, and the main spring is fixedly connected to the main rod. The test block is fixedly connected to the main rod, and a placement block is fixedly connected to the upper surface of the test block. A rubber sealing ring is fitted onto the surface of the placement block, and the inner diameter of the rubber sealing ring is larger than the diameter of the placement block.

[0008] Preferably, the placement block has a third groove inside, and a first rotating plate is rotatably connected to the inner wall of the third groove. The surface of the first rotating plate has multiple first-push grooves arranged in a circular array. A first sliding shaft is slidably connected inside each of the multiple first-push grooves. The inner wall of the third groove has multiple first-extending grooves, and a first-push block is slidably connected inside each of the multiple first-extending grooves. One end of the first-push block is fixedly connected to the first sliding shaft. An adjustment frame is provided at the center of the first rotating plate. A mounting slider is slidably connected inside the adjustment frame of the first rotating plate. An installation groove is provided on the inner wall of the adjustment frame of the first rotating plate. The installation groove consists of inclined grooves and straight grooves. An installation shaft is fixedly connected to the surface of the installation slider, and the installation shaft extends into the installation groove. A fourth groove is provided on the inner wall of the installation slider. The test block has a sliding connection between its inner wall and a mounting block. A first spring is fixedly connected to the inner wall of the fourth slot, and the first spring is also fixedly connected to the mounting block. A mounting frame is fixedly connected to the upper surface of the test block, and a second spring is fixedly connected to the upper surface of the test block. The second spring is fixedly connected to the mounting slider. An extension groove is formed on the inner wall of the test block, extending into the interior of the third slot. A T-shaped power slide rod is slidably connected inside the extension groove. A slope is provided below the mounting block on the side closest to the power slide rod. The power slide rod is fixedly connected to a circular sliding plate. The horizontal portion of the power slide rod and the mounting frame are both located on the sliding path of the mounting block, but the mounting frame is not located on the sliding path of the horizontal portion of the power slide rod.

[0009] Preferably, the test block has a fifth groove inside, and a second rotating plate is rotatably connected inside the fifth groove. The surface of the second rotating plate has multiple second-stage push grooves arranged in a circular array. Each of the multiple second-stage push grooves is slidably connected to a second-stage sliding shaft. An adjustment frame is located at the center of the second rotating plate. A disassembly push block is slidably connected inside the second rotating plate adjustment frame. The inner wall of the second rotating plate adjustment frame has a disassembly groove, which consists of straight grooves and inclined grooves. A disassembly shaft is fixedly connected to the surface of the disassembly push block, extending into the disassembly groove. A sixth groove is formed on the inner wall of the disassembly push block. The part is slidably connected to a disassembly block. The disassembly block has an inclined surface on the side above the power slide rod. The inner wall of the sixth slot is fixedly connected to a third spring, which is fixedly connected to the disassembly block. The upper inner wall of the fifth slot is fixedly connected to a disassembly frame. The upper inner wall of the fifth slot is fixedly connected to a fourth spring, which is fixedly connected to a disassembly push block. The inner wall of the fifth slot has multiple disassembly push grooves. The interior of each of the multiple disassembly push grooves is slidably connected to a second push block, which is fixedly connected to a second slide shaft. The surface of the test block has a locking groove, and the second push block extends into the interior of the locking groove.

[0010] Preferably, the upper surface of the workbench is fixedly connected to two pressing frames, the inside of the housing is provided with a No. 7 slot, and a power push rod is slidably connected inside the No. 7 slot. The power push rod is L-shaped, and the horizontal part of the power push rod is located below the circular slide plate. A No. 5 spring is fixedly connected between the horizontal part of the power push rod and the circular slide plate. The inner wall of the pressing frame is provided with a pressing groove, which consists of two inclined grooves and one straight groove. A push frame is slidably connected inside the pressing frame, and the push frame is fixedly connected to the power push rod. A pressing block is slidably connected inside the push frame, and an extension clip is fixedly connected to one end of the pressing block, extending into the inside of the pressing groove.

[0011] Preferably, the interior of the housing has an eighth slot, which communicates with the first slot. A detection power rod is slidably connected inside the eighth slot. A contact push block is fixedly connected to one side of the detection power rod. A sixth spring is fixedly connected to the inner wall of the eighth slot and is fixedly connected to the contact push block. A ninth slot is formed inside the eighth slot. A connecting push rod is slidably connected inside the ninth slot. A tenth slot is formed inside the tenth slot. A detection stop block is slidably connected inside the tenth slot. A seventh spring is fixedly connected to the inner wall of the tenth slot. A pressure block is fixedly connected to one side of the detection power rod. The detection stop block is located on the sliding path of the pressure block. An eighth spring is fixedly connected to the inner wall of the ninth slot. The spring, specifically spring number eight, is fixedly connected to the connecting push rod. A rotating groove is provided on one side of the inner wall of slot number nine. A power gear is rotatably connected inside the rotating groove on one side of slot number nine. The power gear meshes with the connecting push rod. After the rubber sealing ring test is completed, when the rubber sealing ring returns to the surface of the placement block under the push of the pressure block, the circular sliding plate pushes the detection power rod to slide upward, thereby giving the detection block an upward thrust through the pressure block. This pushes the detection block to drive the connecting push rod to slide upward, thereby driving the power gear to rotate. When the detection block slides to the top of slot number eight, the inclined surface of the detection block contacts the inner wall of the top of slot number eight, and then retracts into the interior of slot number ten. The pressure block returns to the top of the detection block.

[0012] Preferably, the housing has an enlargement slot inside, a connecting gear is rotatably connected inside the enlargement slot, a power plate is rotatably connected inside the connecting gear, a coupling shaft is fixedly connected between the power plate and the power gear, a pawl is rotatably connected to the surface of the power plate via a rotating shaft, a first pawl is fixedly connected to the surface of the power plate, the first pawl is located on the rotation path of the pawl, a one-way groove is formed on the inner wall of the connecting gear, the pawl extends into the one-way groove, and a main gear is slidably connected inside the enlargement slot of the housing, the main gear meshing with the connecting gear.

[0013] Preferably, a detection frame is fixedly connected to the upper surface of the workbench, and a flipping groove is formed on the inner wall of the detection frame. The flipping groove is composed of a straight groove and an arc groove. A flipping block is slidably connected inside the flipping groove. A first-axis and a second-axis are fixedly connected to both sides of the flipping groove. The first-axis and the second-axis are slidably connected inside the flipping groove. A main pull block is fixedly connected to the upper surface of the flipping block. A rotating pull frame is rotatably connected inside the main pull block. One end of the main gear is rotatably connected to the inside of one end of the rotating pull frame.

[0014] Preferably, a detection circular frame is fixedly connected to the upper surface of the flipping block. An interlaced groove is formed inside the detection circular frame. A sliding pressure plate is slidably connected inside the interlaced groove. A No. 9 spring is fixedly connected between the sliding pressure plate and the inner wall of the interlaced groove. A switching groove is formed on the inner wall of the interlaced groove. A power rack is slidably connected inside the switching groove. The power rack is fixedly connected to the sliding pressure plate. Tooth blocks are provided on the surface of the power rack. A striking groove is formed on one side of the inner wall of the switching groove. A striking plate is rotatably connected inside the striking groove. A striking block is fixedly connected to one end of the striking plate. A contact abutment is fixedly connected to one side of the striking plate. The contact abutment is located on the sliding path of the tooth blocks on the surface of the power rack. A second paddle is fixedly connected to the inner wall of the striking groove. The second paddle is located on the sliding path of the striking plate. A striking block is fixedly connected to one end of the striking plate. A bell is fixedly connected to the inner wall of the striking groove. The bell is located on the sliding path of the striking block.

[0015] Beneficial effects The pressure resistance testing device for aerospace rubber seals provided by this invention has the following beneficial effects: 1. The rubber sealing ring is automatically installed into the test block slot by the cooperation of the first push block and the pressure block. The rubber sealing ring is automatically disassembled after testing by the cooperation of the second push block and the pressure block. The automatic installation and disassembly system can quickly complete the installation and disassembly of the rubber ring without the need for tedious manual operation, which greatly shortens the single test cycle. Especially in batch testing, it can significantly improve the overall testing efficiency.

[0016] 2. By pushing the contact block back into the adjacent tooth groove on the surface of the power rack through the second paddle, the tooth block on the surface of the power rack and the second paddle work together to drive the striking plate to swing back and forth in the groove, and then the striking block strikes the bell back and forth, thus making a sound to remind the staff that the degree of recovery of the rubber sealing ring after pressure deformation is not within the reasonable range. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the present invention; Figure 3 For the present invention Figure 2 A magnified view of part A in the image; Figure 4 This is a schematic diagram of the rubber sealing ring connection structure of the present invention; Figure 5 This is a schematic diagram of the internal structure of the No. 2 rotating plate of the present invention; Figure 6 This is a schematic diagram of the internal structure of the pressing frame of the present invention; Figure 7 This is a schematic diagram of the overall structure of the staggered groove of the present invention; Figure 8 This is a schematic diagram of the internal structure of slot number eight of the present invention; Figure 9 For the present invention Figure 8 A magnified view of part B in the image; Figure 10 This is a schematic diagram of the overall structure of the detection circular frame of the present invention; Figure 11 For the present invention Figure 10 A magnified view of part C; Figure 12 This is a schematic diagram of the connection structure of the test block of the present invention.

[0018] The labels in the diagram represent: 1. Housing; 11. Workbench; 12. Air pressure pipe; 2. Circular sliding plate; 21. Slot 1; 22. Detection slot; 23. Slot 2; 24. Main body rod; 25. Placement block; 26. Rubber sealing ring; 27. Test block; 28. Main body spring; 3. Slot 3; 31. Rotating plate 1; 32. Push slot 1; 33. Sliding shaft 1; 34. Extension slot 1; 35. Push block 1; 36. Mounting slider; 37. Mounting slot; 38. Mounting shaft; 39. Slot 4; 310. Spring 1 311. Install the abutment block; 312. Install the abutment frame; 313. Spring No. 2; 314. Extension slide rail; 315. Power slide rod; 4. Slot No. 5; 41. Rotating plate No. 2; 42. Push groove No. 2; 43. Slide shaft No. 2; 44. Disassembly slot; 45. Disassembly push block; 46. Disassembly shaft; 47. Slot No. 6; 48. Spring No. 3; 49. Disassembly the abutment block; 410. Disassembly the abutment frame; 411. Spring No. 4; 412. Disassembly push groove; 413. Push block No. 2; 414. Locking slot; 5. Seven 51. Power push rod; 52. Spring No. 5; 53. Pressing frame; 54. Push frame; 55. Pressing block; 56. Pressing groove; 57. Extension retaining shaft; 6. Slot No. 8; 61. Detection power rod; 62. Contact push block; 63. Spring No. 6; 64. Slot No. 9; 65. Connecting push rod; 66. Slot No. 10; 67. Pressure block; 68. Spring No. 7; 69. Detection stop block; 610. Spring No. 8; 611. Power gear; 7. Power circular plate; 71. One-way retaining groove; 72. Ratchet 73. Claw; 74. Paddle No. 1; 75. Connecting gear; 76. Main rack; 8. Detection frame; 87. Flipping groove; 88. Flipping block; 89. Snap-on shaft No. 1; 80. Snap-on shaft No. 2; 81. Rotating pull frame; 82. Main pull block; 93. Detection round frame; 94. Interlaced groove; 95. Sliding pressure plate; 96. Spring No. 9; 97. Switching groove; 98. Power rack; 99. Knocking groove; 90. Knocking plate; 910. Paddle No. 2; 911. Knocking block; 922. Contact stop block; 933. Bell. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] refer to Figures 1 to 12A pressure resistance testing device for aerospace rubber seals according to a preferred embodiment of the present invention will be described in detail below, comprising a housing 1, a working groove provided on the surface of the housing 1, a worktable 11 provided at the bottom of the inner wall of the working groove of the housing 1, and a pneumatic pipe 12 provided on the upper inner wall of the working groove of the housing 1, one end of the pneumatic pipe 12 being connected to a driving device. The device is characterized in that: a testing groove 22 is provided on the surface of the worktable 11 to provide testing space for rubber ring testing, a test block 27 for fixing the rubber ring is provided inside the testing groove 22, a first push block 35 for stretching the rubber seal 26 is provided on the top of the test block 27, and a pressure block 55 is provided on the surface of the worktable 11 to push the stretched first push block 35 into the interior of the main body rod 24.

[0021] The interior of the housing 1 has a first slot 21, with a circular slide plate 2 slidably connected inside the first slot 21. An electric telescopic rod is installed inside the housing 1, and the circular slide plate 2 is fixedly connected to the output shaft of the electric telescopic rod. A detection slot 22 is formed on the surface of the workbench 11, with a test block 27 slidably connected inside the detection slot 22. A second slot 23 is formed at the bottom of the inner wall of the detection slot 22, communicating with the first slot 21. A main body rod 24 is slidably connected inside the second slot 23, and a stop block is fixedly connected to the inner wall of the second slot 23. A main spring 28 is fixedly connected to the upper surface of the inner wall abutment block of the second groove 23. The main spring 28 is fixedly connected to the main rod 24. The test block 27 is fixedly connected to the main rod 24. A placement block 25 is fixedly connected to the upper surface of the test block 27. A rubber sealing ring 26 is slidably connected to the surface of the placement block 25. The inner diameter of the rubber sealing ring 26 is larger than the diameter of the placement block 25. When testing the pressure resistance of the rubber sealing ring 26 by the testing device, the rubber sealing ring 26 is placed on the upper surface of the test block 27 and sleeved on the surface of the placement block 25.

[0022] The placement block 25 has a third groove 3 inside. A first rotating plate 31 is rotatably connected to the inner wall of the third groove 3. Multiple first push grooves 32 are arranged in a circular array on the surface of the first rotating plate 31. Each of the first push grooves 32 is slidably connected to a first sliding shaft 33. Multiple first extension grooves 34 are formed on the inner wall of the third groove 3. A first push block 35 is slidably connected inside the multiple first extension grooves 34. One end of the first push block 35 is fixedly connected to the first sliding shaft 33. An adjustment frame is located at the center of the first rotating plate 31. An installation slider 36 is slidably connected inside the adjustment frame of the first rotating plate 31. An installation groove 37 is formed on the inner wall of the adjustment frame of the first rotating plate 31. The installation groove 37 consists of inclined grooves and straight grooves. An installation shaft 38 is fixedly connected to the surface of the installation slider 36, extending into the interior of the installation groove 37. A fourth groove 39 is formed on the inner wall of the installation slider 36. An installation shaft 38 is slidably connected inside the fourth groove 39. The inner wall of the mounting block 311 and the fourth slot 39 is fixedly connected to the first spring 310, which is fixedly connected to the mounting block 311. The upper surface of the test block 27 is fixedly connected to the mounting frame 312, and the upper surface of the test block 27 is fixedly connected to the second spring 313, which is fixedly connected to the mounting slider 36. The inner wall of the test block 27 is provided with an extension groove 314, which extends into the interior of the third slot 3. The interior of the extension groove 314 is slidably connected to a power slide rod 315, which is T-shaped. The mounting block 311 has an inclined surface on the side near the power slide rod 315. The power slide rod 315 is fixedly connected to the circular slide plate 2. The horizontal part of the power slide rod 315 and the mounting frame 312 are both located on the sliding path of the mounting block 311, while the mounting frame 312 is not located on the sliding path of the horizontal part of the power slide rod 315. When testing the rubber sealing ring 26, the output shaft of the electric telescopic rod pulls the power slide bar 315 downward, and the lateral part of the power slide bar 315 provides a downward thrust to the mounting block 311, thereby causing the mounting slider 36 to slide downward. The surface mounting shaft 38 provides a thrust to the inner wall of the inclined groove of the mounting groove 37, thereby causing the first rotating plate 31 to rotate inside the third groove 3. The inner wall of the surface first push groove 32 provides a thrust to one side of the first sliding shaft 33 away from the central axis of the first push groove 32, thereby causing each first push block 35 to slide outward through the first sliding shaft 33, thereby stretching the rubber sealing ring 26. At this time, the inner diameter of the rubber sealing ring 26 is larger than the diameter of the test block 27.

[0023] The test block 27 has a fifth slot 4 inside, and a second rotating plate 41 is rotatably connected inside the fifth slot 4. Multiple second push grooves 42 are arranged in a circular array on the surface of the second rotating plate 41. Each of the multiple second push grooves 42 is slidably connected to a second sliding shaft 43. An adjustment frame is located at the center of the second rotating plate 41. A disassembly push block 45 is slidably connected inside the adjustment frame of the second rotating plate 41. A disassembly groove 44 is formed on the inner wall of the adjustment frame of the second rotating plate 41. The disassembly groove 44 consists of straight grooves and inclined grooves. A disassembly shaft 46 is fixedly connected to the surface of the disassembly push block 45, extending into the disassembly groove 44. A sixth slot 47 is formed on the inner wall of the disassembly push block 45. A disassembly stop block 49 is slidably connected inside the sixth slot 47. An inclined surface is provided above the side of the disassembly stop block 49 near the power slide rod 315. A third spring 48 is fixedly connected to the inner wall of groove 47. The third spring 48 is fixedly connected to the disassembly block 49. A disassembly frame 410 is fixedly connected to the upper inner wall of groove 4. A fourth spring 411 is fixedly connected to the upper inner wall of groove 4. The fourth spring 411 is fixedly connected to the disassembly push block 45. Multiple disassembly push grooves 412 are opened on the inner wall of groove 4. A second push block 413 is slidably connected inside each of the multiple disassembly push grooves 412. The second push block 413 is fixedly connected to the second sliding shaft 43. A locking groove 414 is opened on the surface of test block 27. The second push block 413 extends into the inside of the locking groove 414. The lateral part of the power slide rod 315 and the disassembly frame 410 are both located on the sliding path of the disassembly block 49. The disassembly frame 410 is not located on the sliding path of the lateral part of the power slide rod 315.

[0024] Two pressing frames 53 are fixedly connected to the upper surface of the workbench 11. The interior of the housing 1 has a No. 7 slot 5. A power push rod 51 is slidably connected inside the No. 7 slot 5. The power push rod 51 is L-shaped. The horizontal part of the power push rod 51 is located below the circular slide plate 2. A No. 5 spring 52 is fixedly connected between the horizontal part of the power push rod 51 and the circular slide plate 2. The inner wall of the pressing frame 53 has a pressing groove 56. The pressing groove 56 consists of two inclined grooves and one straight groove. A push frame 54 is slidably connected inside the pressing frame 53. The push frame 54 is fixedly connected to the power push rod 51. A pressing block 55 is slidably connected inside the push frame 54. An extension clip 57 is fixedly connected to one end of the pressing block 55. The extension clip 57 extends into the interior of the pressing groove 56. The electric telescopic rod pulls the circular slide plate 2 downwards. During the rotation of the first rotating plate 31, the circular slide plate 2 provides a downward thrust to the power push rod 51 through the fifth spring 52, thereby pushing the power push rod 51 downwards. This causes the push frame 54 to slide downwards, and through the extension clip shaft 57, it slides along the inclined groove of the pressure surface groove 56, causing the pressure surface block 55 to slide towards the rubber sealing ring 26 until it is directly above the rubber sealing ring 26. When the mounting shaft 38 slides into the straight groove of the mounting groove 37, the rubber seal... As ring 26 completes its stretching, and the power slide rod 315 continues to slide downwards, the pressure block 55 above the rubber sealing ring 26 slides downwards under the pull of the power push rod 51, thus pushing the stretched rubber sealing ring 26 into the locking groove 414. The rubber sealing ring 26, under its own elastic force, fits into the locking groove 414. As the power slide rod 315 continues to slide downwards, the mounting block 311, driven by the lateral portion of the power slide rod 315, contacts the mounting frame 312, thereby retracting to... The sliding block 36 moves out of the sliding path of the transverse part of the power slide 315, thus freeing it from the restriction of the power slide 315. Under the push of the second spring 313, it slides back to the top of the fifth slot 4, thereby pulling back the first push block 35 which is in the extended state and retracting it into the interior of the placement block 25. At this time, the power slide 315 continues to slide down, and the transverse part of the power slide 315 contacts the inclined surface of the disassembly block 49. The disassembly block 49 retracts into the interior of the sixth slot 47, and the transverse part of the power slide 315 is located below the disassembly block 49. At this time, the pressure block 55 slides in the inclined groove below the pressure slot 56 through the extension clip 57 and retracts into the interior of the pressure frame 53. At this time, the power slide 315 continues to slide down, thereby pulling the test block 27 to slide down, causing the rubber sealing ring 26 to retract into the interior of the detection slot 22 for testing. At this time, the pressure block 55 can no longer slide down, the circular slide plate 2 continues to slide down, and the fifth spring 52 is compressed under the pressure of the circular slide plate 2. When the rubber sealing ring 26 is inside the test groove 22, the air pressure pipe 12 extends into the test groove 22 under the drive of the drive device. The high pressure applied to the seal by the air pressure system is used to judge the pressure resistance of the rubber sealing ring 26 according to the pressure change in the test groove 22. After the test is completed, the circular slide plate 2 slides upward under the drive of the electric telescopic rod. The main rod 24 slides upward synchronously with the power slide rod 315 under the drive of the placement block 25. At this time, the compression state of the fifth spring 52 is also released synchronously. When the test block 27 slides to the top of the test groove 22, the horizontal part of the power slide rod 315 pushes the disassembly push block 45 upward through the disassembly abutment block 49, thereby giving a push force to the inclined groove of the disassembly groove 44, thereby driving the second rotating plate 41 to rotate. And through the inner wall of the second push groove 42, a push force is given to the second sliding shaft 43, thereby driving the second push block 413 to slide outward, thereby stretching the rubber sealing ring 26. At this time, the diameter of the rubber sealing ring 26 is larger than the diameter of the test block 27. At this time, the circular slide plate 2 pulls the groove 7 5 upward through the fifth spring 52, which in turn pushes the power push rod 51 upward. The pressure block 55 is located directly below the stretched rubber sealing ring 26 under the push of the inclined groove below the pressure groove 56. As the push frame 54 continues to slide, the stretched rubber sealing ring 26 is pushed back to the surface of the placement block 25 by the pressure block 55. The rubber sealing ring 26 is automatically installed into the slot 414 by the cooperation of the first push block 35 and the pressure block 55. The rubber sealing ring 26 after testing is automatically disassembled by the cooperation of the second push block 413 and the pressure block 55. The automatic installation and disassembly system can quickly complete the installation and disassembly of the rubber ring without the need for tedious manual operation, which greatly shortens the single test cycle. Especially in batch testing, it can significantly improve the overall testing efficiency.

[0025] The interior of housing 1 has an eighth slot 6, which is connected to the first slot 21. A detection power rod 61 is slidably connected inside the eighth slot 6. A contact push block 62 is fixedly connected to one side of the detection power rod 61. A sixth spring 63 is fixedly connected to the inner wall of the eighth slot 6, and the sixth spring 63 is fixedly connected to the contact push block 62. A ninth slot 64 is opened inside the eighth slot 6. A connecting push rod 65 is slidably connected inside the ninth slot 64. A tenth slot 66 is opened inside one end of the connecting push rod 65. A detection stop block 69 is slidably connected inside the tenth slot 66. A seventh spring 68 is fixedly connected to the inner wall of the tenth slot 66. A pressure block 67 is fixedly connected to one side of the detection power rod 61. The detection stop block 69 is located on the sliding path of the pressure block 67. An eighth spring 610 is fixedly connected to the inner wall of the ninth slot 64, and the eighth spring 610 is fixedly connected to the connecting push block 62. The push rod 65 is fixedly connected. A rotating groove is opened on one side of the inner wall of the ninth slot 64. A power gear 611 is rotatably connected inside the rotating groove on one side of the ninth slot 64. The power gear 611 meshes with the connecting push rod 65. After the rubber sealing ring 26 is tested, when the rubber sealing ring 26 returns to the surface of the placement block 25 under the push of the pressure block 55, the circular slide plate 2 pushes the detection power rod 61 to slide upward, and then the pressure block 67 gives the detection abutment block 69 an upward thrust. Then, by pushing the detection abutment block 69, the connecting push rod 65 slides upward, thereby driving the power gear 611 to rotate. When the detection abutment block 69 slides to the top of the eighth slot 6, the inclined surface of the detection abutment block 69 contacts the inner wall of the top of the eighth slot 6, and then retracts into the interior of the tenth slot 66. The pressure block 67 returns to the top of the detection abutment block 69.

[0026] The interior of housing 1 has an enlargement slot, and a connecting gear 74 is rotatably connected inside the enlargement slot. A power plate 7 is rotatably connected inside the connecting gear 74. A connecting shaft is fixedly connected between the power plate 7 and the power gear 611. A pawl 72 is rotatably connected to the surface of the power plate 7 via a rotating shaft. A first pawl 73 is fixedly connected to the surface of the power plate 7 and is located on the rotation path of the pawl 72. A one-way groove 71 is opened on the inner wall of the connecting gear 74, and the pawl 72 extends into the one-way groove 71. A main gear 75 is slidably connected inside the enlargement slot of housing 1. The main gear 75 meshes with the connecting gear 74. When the connecting push rod 65 slides upward, it pushes the power gear 611 to rotate, and drives the power plate 7 to rotate synchronously through the connecting shaft. The pawl 72 on the surface of the power plate 7 drives the connecting gear 74 to rotate synchronously with the power gear 611, thereby driving the main gear 75 to slide downward.

[0027] A detection frame 8 is fixedly connected to the upper surface of the workbench 11. A flipping groove 81 is formed on the inner wall of the detection frame 8. The flipping groove 81 consists of a straight groove and an arc groove. A flipping block 82 is slidably connected inside the flipping groove 81. A first-stage retaining shaft 83 and a second-stage retaining shaft 84 are fixedly connected to both sides of the flipping block 82. Both retaining shafts 83 and 84 are slidably connected inside the flipping groove 81. A main pull block 86 is fixedly connected to the upper surface of the flipping block 82. A rotating pull frame 85 is rotatably connected inside the main pull block 86. One end of the main gear 75 is rotatably connected to the rotating pull frame 85. Inside one end of the main toothed rod 75, as it slides downward, the rotating pull frame 85 applies a downward pulling force to the flipping block 82. At this time, the first locking shaft 83 slides along the inner wall of the arc groove of the flipping groove 81 until it extends into the straight groove of the flipping groove 81. Then, the first locking shaft 83 rotates around the second locking shaft 84 located at the upper end of the straight groove of the flipping groove 81, thereby causing the flipping block 82 to fold ninety degrees. As the main toothed rod 75 continues to slide down, the first locking shaft 83 and the flipping groove 81 slide inside the straight groove of the flipping groove 81, thereby causing the flipping block 82 to slide downward.

[0028] A detection circular frame 9 is fixedly connected to the upper surface of the flipping block 82. An interlaced groove 91 is formed inside the detection circular frame 9. A sliding pressure plate 92 is slidably connected inside the interlaced groove 91. A No. 9 spring 93 is fixedly connected between the sliding pressure plate 92 and the inner wall of the interlaced groove 91. A switching groove 94 is formed on the inner wall of the interlaced groove 91. A power rack 95 is slidably connected inside the switching groove 94. The power rack 95 is fixedly connected to the sliding pressure plate 92. Tooth blocks are provided on the surface of the power rack 95. A striking groove 96 is formed on one side of the inner wall of the switching groove 94. An internal striking plate 97 is rotatably connected via a rotating shaft. A striking block 99 is fixedly connected to one end of the striking plate 97. A contact block 910 is fixedly connected to one side of the striking plate 97. The contact block 910 is located on the sliding path of the toothed block on the surface of the power rack 95. A second paddle 98 is fixedly connected to the inner wall of the striking groove 96. The second paddle 98 is located on the rotation path of the striking plate 97. A striking block 99 is fixedly connected to one end of the striking plate 97. A bell 911 is fixedly connected to the inner wall of the striking groove 96. The bell 911 is located on the sliding path of the striking block 99. As the interlaced groove 91 follows the flipping block 82 through folding and sliding, the sliding pressure plate 92 contacts the compressed rubber sealing ring 26. When the rubber sealing ring 26 recovers its shape within a reasonable range after pressure deformation, the sliding pressure plate 92 slides downwards along the surface of the rubber sealing ring 26. When the rubber sealing ring 26 recovers its shape beyond a reasonable range after pressure deformation, the sliding pressure plate 92 contacts the upper surface of the rubber sealing ring 26. The sliding pressure plate 92 cannot slide under the constraint of the rubber sealing ring 26, and the interlaced groove 91 slides downwards along the surface of the sliding pressure plate 92, thus causing relative displacement between the interlaced groove 91 and the sliding pressure plate 92. This causes a relative displacement between the striking plate 97 and the power rack 95, which in turn pushes the contact block 910 to slide through the toothed blocks on the surface of the power rack 95. This causes the striking plate 97 to rotate around the rack, and the second lever 98 pushes the contact block 910 back into the adjacent tooth groove on the surface of the power rack 95. Through the cooperation of the toothed blocks on the surface of the power rack 95 and the second lever 98, the striking plate 97 swings back and forth in the groove 96, which in turn strikes the bell 911 back and forth through the striking block 99, thus producing a sound to remind the staff that the degree of recovery of the rubber sealing ring 26 after pressure deformation is not within the reasonable range.

[0029] The following is the complete working process and working principle of the above embodiment: The rubber sealing ring 26 is placed on the upper surface of the test block 27 and sleeved on the surface of the placement block 25. When the rubber sealing ring 26 is tested, the power slide rod 315 is pulled downward by the output shaft of the electric telescopic rod. The horizontal part of the power slide rod 315 gives a downward push to the mounting block 311, thereby driving the mounting slider 36 to slide downward. The surface mounting shaft 38 gives a push to the inner wall of the inclined groove of the mounting groove 37, thereby driving the first rotating plate 31 to rotate inside the third groove 3. The inner wall of the surface first push groove 32 gives a push to one side of the first sliding shaft 33 away from the central axis of the first push groove 32. The first sliding shaft 33 drives each first push block 35 to slide outward, thereby stretching the rubber sealing ring 26. At this time, the inner diameter of the rubber sealing ring 26 is larger than the diameter of the test block 27. The electric telescopic rod pulls the circular slide plate 2 downwards. During the rotation of the first rotating plate 31, the circular slide plate 2 provides a downward thrust to the power push rod 51 through the fifth spring 52, thereby pushing the power push rod 51 downwards. This causes the push frame 54 to slide downwards, and through the extension clip shaft 57, it slides along the inclined groove of the pressure surface groove 56, causing the pressure surface block 55 to slide towards the rubber sealing ring 26 until it is directly above the rubber sealing ring 26. When the mounting shaft 38 slides into the straight groove of the mounting groove 37, the rubber seal... As ring 26 completes its stretching, and the power slide rod 315 continues to slide downwards, the pressure block 55 above the rubber sealing ring 26 slides downwards under the pull of the power push rod 51, thus pushing the stretched rubber sealing ring 26 into the locking groove 414. The rubber sealing ring 26, under its own elastic force, fits into the locking groove 414. As the power slide rod 315 continues to slide downwards, the mounting block 311, driven by the lateral portion of the power slide rod 315, contacts the mounting frame 312, thereby retracting to... The sliding block 36 moves out of the sliding path of the transverse part of the power slide 315, thus freeing it from the restriction of the power slide 315. Under the push of the second spring 313, it slides back to the top of the fifth slot 4, thereby pulling back the first push block 35 which is in the extended state and retracting it into the interior of the placement block 25. At this time, the power slide 315 continues to slide down, and the transverse part of the power slide 315 contacts the inclined surface of the disassembly block 49. The disassembly block 49 retracts into the interior of the sixth slot 47, and the transverse part of the power slide 315 is located below the disassembly block 49. At this time, the pressure block 55 slides in the inclined groove below the pressure slot 56 through the extension clip 57 and retracts into the interior of the pressure frame 53. At this time, the power slide 315 continues to slide down, thereby pulling the test block 27 to slide down, causing the rubber sealing ring 26 to retract into the interior of the detection slot 22 for testing. At this time, the pressure block 55 can no longer slide down, the circular slide plate 2 continues to slide down, and the fifth spring 52 is compressed under the pressure of the circular slide plate 2. After the rubber sealing ring 26 has been tested inside the test groove 22, the circular slide plate 2 slides upward under the drive of the electric telescopic rod. The main rod 24 slides upward synchronously with the power slide rod 315 under the drive of the placement block 25. At this time, the compression state of the fifth spring 52 is also released synchronously. When the test block 27 slides above the test groove 22, the horizontal part of the power slide rod 315 pushes the disassembly push block 45 upward through the disassembly abutment block 49, thereby giving a thrust to the inclined groove of the disassembly groove 44, which in turn drives the second rotating plate 41 to rotate. It also gives a thrust to the second sliding shaft 43 through the inner wall of the second push groove 42, which in turn drives the second push block 413 to slide outward, thereby stretching the rubber sealing ring 26. At this time, the diameter of the rubber sealing ring 26 is larger than the diameter of the test block 27. At this time, the circular slide plate 2 slides upward through the fifth spring 52. Spring 52 pulls groove 7 5 upward, which in turn pushes push rod 51 upward. Pressing block 55 is positioned directly below the stretched rubber sealing ring 26 under the push of the inclined groove below pressing groove 56. As push frame 54 continues to slide, pressing block 55 pushes the stretched rubber sealing ring 26 back onto the surface of placement block 25. Through the cooperation of push block 35 and pressing block 55, rubber sealing ring 26 is automatically installed into the slot 414. Through the cooperation of push block 413 and pressing block 55, the tested rubber sealing ring 26 is automatically disassembled. The dynamic installation and disassembly system can quickly complete the installation and disassembly of rubber rings without the need for tedious manual operations, greatly shortening the single test cycle. Especially in batch testing, it can significantly improve the overall testing efficiency.

[0030] As the connecting push rod 65 slides upward, it drives the power gear 611 to rotate, and drives the power disc 7 to rotate synchronously through the connecting shaft. The pawl 72 on the surface of the power disc 7 drives the connecting gear 74 to rotate synchronously with the power gear 611, thereby driving the main gear 75 to slide downward. As the main gear 75 slides downward, it applies a downward pulling force to the flipping block 82 by rotating the pull frame 85. At this time, the first locking shaft 83 slides along the inner wall of the arc groove of the flipping groove 81 until it extends into the straight groove of the flipping groove 81. At this time, the first locking shaft 83 rotates around the second locking shaft 84 located at the upper end of the straight groove of the flipping groove 81, thereby driving the flipping block 82 to fold ninety degrees. As the main gear 75 continues to slide downward, the first locking shaft 83 and the flipping groove 81 slide inside the straight groove of the flipping groove 81, thereby driving the flipping block 82 to slide downward. As the interlaced groove 91 follows the flipping block 82 through folding and sliding, the sliding pressure plate 92 contacts the compressed rubber sealing ring 26. When the rubber sealing ring 26 recovers its shape within a reasonable range after pressure deformation, the sliding pressure plate 92 slides downwards along the surface of the rubber sealing ring 26. When the rubber sealing ring 26 recovers its shape beyond a reasonable range after pressure deformation, the sliding pressure plate 92 contacts the upper surface of the rubber sealing ring 26. The sliding pressure plate 92 cannot slide under the constraint of the rubber sealing ring 26, and the interlaced groove 91 slides downwards along the surface of the sliding pressure plate 92, thus causing relative displacement between the interlaced groove 91 and the sliding pressure plate 92. This causes a relative displacement between the striking plate 97 and the power rack 95, which in turn pushes the contact block 910 to slide through the toothed blocks on the surface of the power rack 95. This causes the striking plate 97 to rotate around the rack, and the second lever 98 pushes the contact block 910 back into the adjacent tooth groove on the surface of the power rack 95. Through the cooperation of the toothed blocks on the surface of the power rack 95 and the second lever 98, the striking plate 97 swings back and forth in the groove 96, which in turn strikes the bell 911 back and forth through the striking block 99, thus producing a sound to remind the staff that the degree of recovery of the rubber sealing ring 26 after pressure deformation is not within the reasonable range.

[0031] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pressure resistance testing device for aerospace rubber seals, comprising a housing (1), wherein a working groove is provided on the surface of the housing (1), a worktable (11) is provided at the bottom of the inner wall of the working groove of the housing (1), and a pressure pipe (12) is provided on the upper inner wall of the working groove of the housing (1), characterized in that: The surface of the workbench (11) is provided with a detection groove (22) to provide detection space for rubber ring detection. The inside of the detection groove (22) is provided with a test block (27) to fix the rubber ring. The top of the test block (27) is provided with a first push block (35) to stretch the rubber sealing ring (26). The surface of the workbench (11) is provided with a pressure block (55) to push the stretched first push block (35) into the body rod (24).

2. The pressure resistance testing device for aerospace rubber seals according to claim 1, characterized in that: The box (1) has a first slot (21) inside, and a circular slide plate (2) is slidably connected inside the first slot (21). An electric telescopic rod is installed inside the box (1), and the circular slide plate (2) is fixedly connected to the output shaft of the electric telescopic rod. A detection slot (22) is opened on the surface of the workbench (11), and a test block (27) is slidably connected inside the detection slot (22). A second slot (23) is opened on the inner wall of the detection slot (22), and the second slot (23) is connected to the first slot (21). The internal sliding connection is a main body rod (24), the inner wall of the second groove (23) is fixedly connected to a stop block, the upper surface of the stop block of the inner wall of the second groove (23) is fixedly connected to a main body spring (28), the main body spring (28) is fixedly connected to the main body rod (24), the test block (27) is fixedly connected to the main body rod (24), the upper surface of the test block (27) is fixedly connected to a placement block (25), the surface of the placement block (25) is fitted with a rubber sealing ring (26), the inner diameter of the rubber sealing ring (26) is larger than the diameter of the placement block (25).

3. The pressure resistance testing device for aerospace rubber seals according to claim 2, characterized in that: The placement block (25) has a third groove (3) inside. The inner wall of the third groove (3) is rotatably connected to a first rotating plate (31). The surface of the first rotating plate (31) has multiple first push grooves (32) arranged in a circular array. The interior of the multiple first push grooves (32) is slidably connected to a first sliding shaft (33). The inner wall of the third groove (3) has multiple first extension grooves (34). The interior of the multiple first extension grooves (34) is slidably connected to a first push block (35). One end of the first push block (35) is fixed to the first sliding shaft (33). The first rotating plate (31) is connected to an adjustment frame at its center. An installation slider (36) is slidably connected inside the adjustment frame. An installation groove (37) is formed on the inner wall of the adjustment frame, consisting of an inclined groove and a straight groove. An installation shaft (38) is fixedly connected to the surface of the installation slider (36), extending into the interior of the installation groove (37). A fourth groove (39) is formed on the inner wall of the installation slider (36), and the fourth groove (39) is slidably connected inside. A mounting block (311) is connected to the test block (27). A first spring (310) is fixedly connected to the inner wall of the fourth slot (39). The first spring (310) is fixedly connected to the mounting block (311). A mounting frame (312) is fixedly connected to the upper surface of the test block (27). A second spring (313) is fixedly connected to the upper surface of the test block (27). The second spring (313) is fixedly connected to the mounting slider (36). An extension groove (314) is provided on the inner wall of the test block (27). The extension groove (314) extends to the third slot. Inside (3), the extended slide groove (314) is slidably connected to a power slide rod (315). The power slide rod (315) is T-shaped. The mounting block (311) has an inclined surface on the side near the power slide rod (315). The power slide rod (315) is fixedly connected to the circular slide plate (2). The horizontal part of the power slide rod (315) and the mounting frame (312) are both located on the sliding path of the mounting block (311). The mounting frame (312) is not located on the sliding path of the horizontal part of the power slide rod (315).

4. The pressure resistance testing device for aerospace rubber seals according to claim 2, characterized in that: The test block (27) has a fifth groove (4) inside. A second rotating plate (41) is rotatably connected inside the fifth groove (4). The surface of the second rotating plate (41) has multiple second push grooves (42) arranged in a circular array. The interior of each of the multiple second push grooves (42) is slidably connected to a second sliding shaft (43). An adjustment frame is provided at the center of the second rotating plate (41). A disassembly push block (45) is slidably connected inside the adjustment frame of the second rotating plate (41). A disassembly groove (44) is provided on the inner wall of the adjustment frame of the second rotating plate (41). The disassembly groove (44) is composed of a straight groove and an inclined groove. A disassembly shaft (46) is fixedly connected to the surface of the disassembly push block (45). The disassembly shaft (46) extends into the interior of the disassembly groove (44). A sixth groove (47) is provided on the inner wall of the disassembly push block (45). A disassembly stop block (47) is slidably connected inside the sixth groove (47). 49), the disassembly block (49) has an inclined surface above the side of the power slide rod (315), the inner wall of the sixth slot (47) is fixedly connected to the third spring (48), the third spring (48) is fixedly connected to the disassembly block (49), the upper inner wall of the fifth slot (4) is fixedly connected to the disassembly frame (410), the upper inner wall of the fifth slot (4) is fixedly connected to the fourth spring (411), the fourth spring (411) is fixedly connected to the disassembly push block (45), the inner wall of the fifth slot (4) is provided with multiple disassembly push grooves (412), the interior of the multiple disassembly push grooves (412) is slidably connected to the second push block (413), the second push block (413) is fixedly connected to the second slide shaft (43), the surface of the test block (27) is provided with a locking groove (414), the second push block (413) extends into the interior of the locking groove (414).

5. The pressure resistance testing device for aerospace rubber seals according to claim 4, characterized in that: Two pressing frames (53) are fixedly connected to the upper surface of the workbench (11). The interior of the box 1 is provided with a No. 7 slot (5). A power push rod (51) is slidably connected inside the No. 7 slot (5). The power push rod (51) is L-shaped. The horizontal part of the power push rod (51) is located below the circular slide plate (2). A No. 5 spring (52) is fixedly connected between the horizontal part of the power push rod (51) and the circular slide plate (2). A pressing groove (56) is provided on the inner wall of the pressing frame (53). The pressing groove (56) is composed of two inclined grooves and one straight groove. A push frame (54) is slidably connected inside the pressing frame (53). The push frame (54) is fixedly connected to the power push rod (51). A pressing block (55) is slidably connected inside the push frame (54). An extension clip (57) is fixedly connected to one end of the pressing block (55). The extension clip (57) extends into the interior of the pressing groove (56).

6. The pressure resistance testing device for aerospace rubber seals according to claim 5, characterized in that: The box (1) has an eighth slot (6) inside, which is connected to the first slot (21). A detection power rod (61) is slidably connected inside the eighth slot (6). A contact push block (62) is fixedly connected to one side of the detection power rod (61). A sixth spring (63) is fixedly connected to the inner wall of the eighth slot (6). The sixth spring (63) is fixedly connected to the contact push block (62). A ninth slot (64) is opened on the inner wall of the eighth slot (6). The inner wall of the ninth slot (64) has a... A connecting push rod (65) is slidably connected to the part. A groove (66) is opened inside one end of the connecting push rod (65). A detection stop block (69) is slidably connected inside the groove (66). A spring (68) is fixedly connected to the inner wall of the groove (66). A pressure block (67) is fixedly connected to one side of the detection power rod (61). The detection stop block (69) is located on the sliding path of the pressure block (67). A spring (61) is fixedly connected to the inner wall of the groove (64). 0), the No. 8 spring (610) is fixedly connected to the connecting push rod (65), and a rotating groove is provided on one side of the inner wall of the No. 9 groove (64). A power gear (611) is rotatably connected inside the rotating groove on one side of the No. 9 groove (64). The power gear (611) meshes with the connecting push rod (65). After the rubber sealing ring (26) is tested, when the rubber sealing ring (26) returns to the surface of the placement block (25) under the push of the pressure block (55), the circular slide plate (2) pushes the detection power rod. (61) Slide upwards, and then the pressure block (67) gives the detection block (69) an upward thrust, and then the connecting push rod (65) is driven to slide upwards by pushing the detection block (69), thereby driving the power gear (611) to rotate. When the detection block (69) slides to the top of the eighth slot (6), the inclined surface of the detection block (69) contacts the inner wall of the top of the eighth slot (6), and then retracts into the interior of the tenth slot (66), and the pressure block (67) returns to the top of the detection block (69).

7. The pressure resistance testing device for aerospace rubber seals according to claim 6, characterized in that: The housing (1) has an enlarged slot inside. A connecting gear (74) is rotatably connected inside the enlarged slot of the housing (1). A power plate (7) is rotatably connected inside the connecting gear (74). A connecting shaft is fixedly connected between the power plate (7) and the power gear (611). A pawl (72) is rotatably connected to the surface of the power plate (7) through a rotating shaft. A first paddle (73) is fixedly connected to the surface of the power plate (7). The first paddle (73) is located on the rotation path of the pawl (72). A one-way slot (71) is opened on the inner wall of the connecting gear (74). The pawl (72) extends into the one-way slot (71). A main gear (75) is slidably connected inside the enlarged slot of the housing (1). The main gear (75) meshes with the connecting gear (74).

8. The pressure resistance testing device for aerospace rubber seals according to claim 7, characterized in that: A detection frame (8) is fixedly connected to the upper surface of the workbench (11). A flipping groove (81) is provided on the inner wall of the detection frame (8). The flipping groove (81) is composed of a straight groove and an arc groove. A flipping block (82) is slidably connected inside the flipping groove (81). A first-hand locking shaft (83) and a second-hand locking shaft (84) are fixedly connected to both sides of the flipping groove (81). The first-hand locking shaft (83) and the second-hand locking shaft (84) are slidably connected inside the flipping groove (81). A main body pull block (86) is fixedly connected to the upper surface of the flipping block (82). A rotating pull frame (85) is rotatably connected inside the main body pull block (86). One end of the main body toothed rod (75) is rotatably connected to the inside of one end of the rotating pull frame (85).

9. The pressure resistance testing device for aerospace rubber seals according to claim 8, characterized in that: A detection circular frame (9) is fixedly connected to the upper surface of the flipping block (82). An interlaced groove (91) is provided inside the detection circular frame (9). A sliding pressure plate (92) is slidably connected inside the interlaced groove (91). A No. 9 spring (93) is fixedly connected between the sliding pressure plate (92) and the inner wall of the interlaced groove (91). A switching groove (94) is provided on the inner wall of the interlaced groove (91). A power rack (95) is slidably connected inside the switching groove (94). The power rack (95) is fixedly connected to the sliding pressure plate (92). A tooth block is provided on the surface of the power rack (95). A knocking groove (96) is provided on one side of the inner wall of the switching groove (94). A striking plate (97) is rotatably connected inside the groove (96). A striking block (99) is fixedly connected to one end of the striking plate (97). A contact block (910) is fixedly connected to one side of the striking plate (97). The contact block (910) is located on the sliding path of the tooth block on the surface of the power rack (95). A second paddle (98) is fixedly connected to the inner wall of the striking groove (96). The second paddle (98) is located on the rotation path of the striking plate (97). A striking block (99) is fixedly connected to one end of the striking plate (97). A bell (911) is fixedly connected to the inner wall of the striking groove (96). The bell (911) is located on the sliding path of the striking block (99).

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