A high-pressure sealing test device and method for an artificial chamber test model

Abstract

The present invention relates to the technical field of air tightness detection of artificial chamber test models, specifically a high-pressure sealing test device and method for artificial chamber test models, comprising a vertical plate, a placement rack, a primary limiting mechanism and a secondary limiting mechanism. In the present invention, two cover plates are clamped together by a clamping group 2, and the movement of the two cover plates in the up and down directions is limited. The transmission group in the secondary limiting mechanism enables the rotating groups on the two rotating plates 1 to work synchronously, and the rotating groups drive the corresponding clamping group 2 to clamp together with the threaded holes on the artificial chamber at the same time. The air tightness between the two cover plates and the artificial chamber test model is improved by the cooperation between the limiting column and the threaded hole on the artificial chamber, and the error caused by the gap between the cover plate and the artificial chamber test model during the air tightness detection process is reduced. In the present invention, the positions of the two cover plates are adjusted in the process of approaching each other by the cooperation between the centering group and the linkage group, so that the axes of the two cover plates are collinear with the axis of the artificial chamber test model, thereby simplifying the sealing process.

Description

Technical Field

[0001] The present invention relates to the technical field of air tightness detection of artificial chamber test models, in particular to a device and method for high-pressure sealing testing of an artificial chamber. Background Art

[0002] Artificial chamber is a special type of underground space, mainly used to store high-pressure gas, such as natural gas, compressed air, etc., and is increasingly used in the field of modern energy storage. The sealing performance of artificial chamber is the most important in its application. Good sealing performance can effectively prevent the leakage of gas or liquid. Therefore, a high-pressure airtightness test is required before the artificial chamber is used. However, since artificial chambers are relatively large, an artificial chamber test model is usually developed and designed before the production of artificial chambers to ensure that the high-pressure sealing performance test of the artificial chamber test model is qualified before production. The existing artificial chamber test model is generally a cylindrical metal structure (see Figure 9 ), a plurality of annular steel plates are arranged on the circumferential surface of this artificial chamber test model, and a reinforcing steel plate for increasing strength is connected between two adjacent annular steel plates, and threaded holes are opened on the reinforcing steel plates.

[0003] In the existing process of testing the sealing performance of artificial chamber test models, it is usually necessary to use partitions to seal the openings at both ends of the artificial chamber test model, and then use gas pipes to transport high-pressure gas and inert gas into the cavity of the artificial chamber test model, and use a high-pressure air tightness tester to test the high-pressure air tightness inside the artificial chamber test model.

[0004] The above-mentioned detection process has the following deficiencies: During the above-mentioned detection process, it is easy for the sealing partition to be pushed out of contact with the artificial chamber test model by the high-pressure gas due to the excessive air pressure in the artificial chamber test model, thereby increasing the error in the air tightness detection process, making the air tightness obtained by the test lower than the air tightness of the artificial chamber test model; secondly, in the process of sealing the two ends of the artificial chamber test model with the partition, it is easy for the position of the partition to deviate from the cavity part of the artificial chamber test model, and the position of the cover plate needs to be adjusted multiple times so that the position of the cover plate axis is collinear with the axis of the inner cavity of the artificial chamber test model, which is cumbersome to operate. Summary of the Invention

[0005] Based on this, it is necessary to provide a high-pressure sealing test device for an artificial chamber test model to solve the above technical problems.

[0006] The present application provides a high-pressure sealing test device for an artificial chamber test model, comprising: a vertical plate, the front end face of the vertical plate slidingly penetrates two sliding plates symmetrically distributed up and down, a horizontal plate sliding left and right through the sliding plate, cover plates are fixedly provided on opposite surfaces of the two horizontal plates, a plurality of gas pipes penetrating the cover plates are fixedly provided on the upper cover plate, a rotating shaft is rotatably penetrated on both cover plates, a support frame is fixedly provided on the lower end face of the vertical plate, and a placement frame for placing the artificial chamber test model is provided on the front side of the vertical plate.

[0007] A primary limiting mechanism is provided on the lower cover plate, and the primary limiting mechanism includes a fixed cylinder. A fixed cylinder is fixedly provided on the upper end surface of the lower cover plate, and a centering group for adjusting the position of the cover plate is provided on the fixed cylinder. A driving group is provided on the rear end surface of the vertical plate, and a linkage group is provided together with the two vertical plates and the two horizontal plates.

[0008] A secondary limiting mechanism is commonly provided on the two horizontal plates, and the secondary limiting mechanism includes a sleeve. The lower end surface of the lower horizontal plate is fixedly provided with a sleeve sleeved on the corresponding rotating shaft. The sleeve and the upper rotating shaft are fixedly provided with a rotating plate 1. A clamping group 1 is provided on each rotating plate 1. A rotating group is commonly provided between each cover plate and the corresponding rotating plate 1. A clamping group 2 for clamping the two cover plates is commonly provided between the upper rotating shaft and the fixed cylinder. The secondary limiting mechanism also includes a limiting column that cooperates with the threaded hole on the artificial chamber test model.

[0009] According to a favorable embodiment, the drive group includes a transmission shaft, the rear end face of the vertical plate is rotatably provided with a transmission shaft, a gear 1 is fixedly sleeved on the transmission shaft, the rear end face of the vertical plate is slidably provided with two racks 1 that are centrally symmetrical about the axis of the transmission shaft, and the racks 1 are meshed with the gear 1, and the two racks 1 are fixedly connected to the corresponding sliding plates through connecting bars respectively, the rear end face of the vertical plate is fixedly provided with a rectangular plate, the lower end face of the rectangular plate is provided with a hydraulic cylinder, and the telescopic end of the hydraulic cylinder is fixedly connected to the corresponding rack 1 through the connecting plate.

[0010] According to a favorable embodiment, the linkage group includes a movable plate, the rear end face of the vertical plate is provided with a movable plate for sliding left and right, the upper and lower end faces of the movable plate are fixedly provided with vertical rods, the rear section of the horizontal plate is penetrated by a cylindrical hole, and the opposite surfaces of the two horizontal plates are fixedly provided with two left-right symmetrical guide plates, and the guide plates on the same horizontal plate gradually move away from the sliding plate toward the movable plate.

[0011] According to an advantageous embodiment, the centering group includes a sliding rod, and four sliding rods uniformly distributed in the circumference are slidably provided on the fixed cylinder, and arc plates are fixedly provided on the end surfaces of the sliding rods away from the corresponding rotating shafts.

[0012] According to a favorable embodiment, four circumferentially evenly distributed arcuate bars are fixedly provided on the lower rotating shaft, transmission grooves are opened on the arcuate bars, and a transmission column located in the corresponding transmission groove is fixedly provided on each of the sliding rods.

[0013] According to a favorable embodiment, two circumferentially evenly distributed fixing bars are fixedly provided on the sleeve, and the upper end surface of the fixing bar is provided with a gear 2 which is rotated by a vertical axis, and two racks 2 which are respectively engaged with the corresponding gear 2 are fixedly provided on the lower rotating plate 1, and a rotating cylinder located at the lower side of the sleeve is rotatably sleeved on the lower rotating shaft, and a rotating plate 2 is fixedly sleeved on the rotating cylinder, and two racks 3 which are respectively engaged with the corresponding gear 2 are fixedly provided on the upper end surface of the rotating plate 2 through a connecting block.

[0014] According to a favorable embodiment, a transmission group is commonly provided on the rotating plate 2 and the upper rotating plate 1, and the transmission group includes a transmission rod. Two transmission rods are fixedly provided on the lower end surface of the upper rotating plate 1, and two guide cylinders corresponding to the transmission rods are fixedly provided on the upper end surface of the rotating plate 2. The guide cylinders are divided into an inverted frustum section and a cylindrical section from top to bottom. Two through holes are respectively provided on the rotating plate 2 and are located below the corresponding guide cylinders. A volute spring is commonly fixedly connected between the rotating cylinder and the fixed bar, and a positioning column is fixedly provided on the lower end surface of the lower cover plate.

[0015] According to a preferred embodiment, the second clamping group includes a guide bar, two guide bars are fixedly provided on the inner wall of the fixed cylinder, and the two guide bars are centrally symmetrically distributed about the axis of the fixed cylinder, and the guide bar is divided into an inclined section and a horizontal section in sequence along the counterclockwise direction of the rotating cylinder, and the inclined section of the guide bar is inclined downward in the counterclockwise direction, a fixed block is fixedly provided on the lower end surface of the horizontal section of the guide bar, and a clamping bar is fixedly provided on the lower end surface of the rotating shaft on the upper side.

[0016] According to a favorable embodiment, the clamping group 1 includes a rotating rod, and two rotating rods are rotated and passed through the rotating plate 1. The opposite surfaces of the two rotating rods facing each other are fixedly provided with L-shaped plates, and the transverse section of the L-shaped plate is fixedly provided with a limiting column that cooperates with the threaded hole at the corresponding position on the artificial chamber test model.

[0017] According to a favorable embodiment, the rotating group includes gear three, gear three is fixedly sleeved on the rotating rod, two racks four are fixedly provided on the opposite back surfaces of the two cover plates, which are respectively engaged with the corresponding gear three, and fixed plates are fixedly provided on the opposite back surfaces of the two cover plates for limiting the rotating plate one.

[0018] In addition, the present invention also provides a method for high-pressure sealing testing of an artificial chamber test model:

[0019] S1. Movement and alignment: The hydraulic cylinder drives the two horizontal plates to move closer to each other. During the process of the horizontal plates moving closer to each other, the linkage group works to align the two horizontal plates in the vertical direction, thereby driving the cover plate to align in the vertical direction.

[0020] S2. Centering adjustment: After the lower cover plate drives the arc plate to move until the arc plate and the inner cavity of the artificial chamber test model are intertwined, the centering group works to adjust the position of the cover plate through the coordination between the arc plate and the inner cavity of the artificial chamber test model, so that both cover plates are moved to be collinear with the axis of the artificial chamber test model.

[0021] S3. Move and fit tightly: After completing the positioning of the two cover plates, the two cover plates continue to move closer to each other until both cover plates are in close contact with the artificial chamber test model.

[0022] S4. Rotational clamping: The upper rotation shaft drives the clamping bar to rotate, and the two cover plates are clamped together through the cooperation between the clamping bar and the horizontal section of the guide bar.

[0023] S5. Rotation limit: The rotating plate drives the clamping group to rotate. During the rotation of the rotating plate, the rotating group drives the clamping group to rotate, so that when the clamping strip rotates to contact the fixed block, the limit column rotates to the threaded hole at the corresponding position.

[0024] S6. Inflation test: After all the limit columns are rotated into the corresponding threaded holes, the high-pressure air tightness tester works, and compressed air or other inert gases (such as nitrogen) are delivered to the inner cavity of the artificial chamber test model through the air pipe, and the pressure is gradually increased until the predetermined pressure value is reached. After pressurization, it is maintained for a certain time. During this period, the pressure changes are continuously monitored, and the air tightness of the artificial chamber test model is recorded and analyzed by the high-pressure air tightness tester.

[0025] To sum up, the present invention includes at least one of the following beneficial effects: 1. In the present invention, the two cover plates are clamped together by the clamping group 2 to limit the upward and downward movement of the two cover plates. At the same time, the two cover plates are clamped together with the threaded holes on the artificial chamber test model by the clamping group 1. Through the two clamping processes, the high-pressure gas is prevented from pushing the cover plates out of contact with the artificial chamber test model during the airtightness test, thereby improving the airtightness between the two cover plates and the artificial chamber test model during the test process. In the present invention, through the cooperation between the centering group and the linkage group, the positions of the two cover plates are adjusted during the process of approaching each other, so that the axes of the two cover plates are collinear with the axis of the artificial chamber test model, thereby simplifying the sealing process.

[0026] 2. In the present invention, the transmission group in the secondary limiting mechanism enables the rotating groups on the two rotating plates 1 to work synchronously, and the rotating group drives the corresponding clamping group 2 to clamp with the threaded holes on the artificial chamber test model at the same time. Through the cooperation between the limiting column and the threaded hole on the artificial chamber test model, the air tightness between the two cover plates and the artificial chamber test model is improved, and the error caused by the gap between the cover plate and the artificial chamber test model during the air tightness test process is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0028] Figure 1 A schematic diagram of the three-dimensional structure of a high-pressure sealing test device for an artificial chamber test model and an artificial chamber test model provided according to an embodiment of the present invention is shown.

[0029] Figure 2 A schematic diagram of the three-dimensional structure of a high-pressure sealing test device for an artificial chamber test model provided according to an embodiment of the present invention is shown.

[0030] Figure 3 A rear view of a high-pressure sealing test device for an artificial chamber test model provided according to an embodiment of the present invention is shown.

[0031] Figure 4 A partial cross-sectional view of the three-dimensional structure of the cover plate, the centering group and the fixing cylinder provided according to an embodiment of the present invention is shown.

[0032] Figure 5 The embodiment of the present invention provides Figure 4 A magnified view of the structure in the middle.

[0033] Figure 6 A schematic diagram of the three-dimensional structure of a rotating plate 1, a transmission group and a clamping group 1 provided according to an embodiment of the present invention is shown.

[0034] Figure 7 A front view of a cover plate, a rotating assembly and a snap-on assembly according to an embodiment of the present invention is shown.

[0035] Figure 8 A schematic diagram of the three-dimensional structure of a vertical plate, a driving group and a linkage group provided according to an embodiment of the present invention is shown.

[0036] Figure 9A schematic diagram of the three-dimensional structure of an artificial chamber test model provided according to an embodiment of the present invention is shown.

[0037] The above drawings include the following reference numerals:

[0038] 1. Vertical plate; 10. Support frame; 2. Sliding plate; 20. Horizontal plate; 200. Cover plate; 201. Gas pipe; 202. Rotating shaft; 3. Placement rack; 4. Primary limiting mechanism; 40. Fixed cylinder; 41. Centering group; 410. Sliding rod; 411. Curved plate; 412. Curved bar; 413. Transmission column; 42. Driving group; 420. Transmission shaft; 421. Gear 1; 422. Rack 1; 423. Hydraulic cylinder; 43. Linkage group; 430. Moving plate; 431. Vertical rod; 432. Guide plate; 5. Secondary limiting mechanism; 50. Sleeve; 51. Rotating plate 1; 52. Snap-fit ​​group 1; 520. Rotating rod; 521. L-shaped plate; 522. Limiting column; 53. Rotating group; 530. Gear 3; 531. Rack 4; 532. Fixed plate; 54. Snap-fit ​​group 2; 540. Guide bar; 541. Fixed block; 542. Snap-fit ​​bar; 55. Fixed bar; 550. Gear 2; 551. Rack 2; 552. Rotating plate 2; 553. Rack 3; 56. Transmission group; 560. Transmission rod; 561. Guide cylinder; 562. Volute spring; 563. Positioning column. DETAILED DESCRIPTION

[0039] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0040] like Figure 1 and Figure 2 As shown, a high-pressure sealing test device for an artificial chamber test model comprises: a vertical plate 1, the front end face of the vertical plate 1 is slidably penetrated by two sliding plates 2 which are symmetrically distributed up and down, a horizontal plate 20 is slidably penetrated on the sliding plate 2, the opposite surfaces of the two horizontal plates 20 are fixedly provided with cover plates 200, a plurality of gas pipes 201 penetrating the cover plates 200 are fixedly provided on the upper cover plate 200, all the gas pipes 201 are connected to an external high-pressure air tightness tester (not shown in the figure) through a rubber tube, a rotating shaft 202 is rotatably penetrated on the two cover plates 200, a support frame 10 is fixedly provided on the lower end face of the vertical plate 1, and a placement frame 3 for placing the artificial chamber test model is provided on the front side of the vertical plate 1.

[0041] like Figure 1 、 Figure 2 and Figure 3 As shown, a primary limiting mechanism 4 is provided on the lower cover plate 200, and the primary limiting mechanism 4 includes a fixed cylinder 40. The upper end surface of the lower cover plate 200 is fixedly provided with a fixed cylinder 40, and the fixed cylinder 40 is provided with a centering group 41 for adjusting the position of the cover plate 200. The rear end surface of the vertical plate 1 is provided with a driving group 42 for driving the two sliding plates 2 to approach each other, and a linkage group 43 is commonly provided on the two vertical plates 1 and the two horizontal plates 20.

[0042] like Figure 1 、 Figure 2 and Figure 7 As shown, a secondary limiting mechanism 5 is commonly provided on the two horizontal plates 20, and the secondary limiting mechanism 5 includes a sleeve 50. The lower end surface of the lower horizontal plate 20 is fixedly provided with a sleeve 50 sleeved on the corresponding rotating shaft 202. A rotating plate 51 is fixedly provided on the sleeve 50 and the upper rotating shaft 202. The upper rotating shaft 202 is connected to an external motor 1 (not shown in the figure). A clamping group 52 is provided on each rotating plate 51. A rotating group 53 is commonly provided between each cover plate 200 and the corresponding rotating plate 51. A clamping group 2 54 for clamping the two cover plates 200 is commonly provided between the upper rotating shaft 202 and the fixed cylinder 40. The secondary limiting mechanism 5 also includes a limiting column 522 that cooperates with the threaded hole on the artificial chamber test model.

[0043] During operation, the staff places the artificial chamber test model on the placement frame 3 through the existing lifting equipment (such as a crane), and then the driving group 42 works to drive the corresponding horizontal plates 20 to approach each other through the two sliding plates 2, and the two horizontal plates 20 drive the corresponding cover plates 200 to move synchronously. During the process of the two cover plates 200 approaching each other, the centering group 41 works to adjust the left and right positions of the lower cover plate 200. At the same time, the linkage group 43 works to drive the upper cover plate 200 to move synchronously, so that the axes of the two cover plates 200 are moved to be collinear with the axes of the artificial chamber test model, and then the two cover plates 200 continue to approach each other, and the two cover plates 200 are moved. After moving to be close to the artificial chamber test model, motor 1 drives the upper rotating shaft 202 to rotate, and the rotating shaft 202 rotates to drive the clamping group 2 54 to clamp the two cover plates 200. At the same time, the two rotating plates 1 51 drive the corresponding clamping group 1 52 to rotate. During the rotation of the clamping group 1 52, the rotating group 53 drives the clamping group 1 52 to rotate, and at the same time, the limiting column 522 rotates to the threaded hole at the corresponding position of the artificial chamber test model, further limiting the position of the cover plate 200, so as to avoid the problem of the cover plate 200 being out of contact with the artificial chamber test model due to excessive pressure during the subsequent inflation of the artificial chamber test model.

[0044] like Figure 3As shown, the driving group 42 includes a transmission shaft 420, and the rear end face of the vertical plate 1 is rotatably provided with a transmission shaft 420, and a gear 421 is fixedly sleeved on the transmission shaft 420. The rear end face of the vertical plate 1 is slidably provided with two racks 422 that are centrally symmetrical about the axis of the transmission shaft 420, and the racks 422 are engaged with the gears 421, and the two racks 422 are fixedly connected to the corresponding sliding plates 2 through connecting bars respectively. A rectangular plate is fixedly provided on the rear end face of the vertical plate 1, and a hydraulic cylinder 423 is provided on the lower end face of the rectangular plate, and the telescopic end of the hydraulic cylinder 423 is fixedly connected to the corresponding rack 422 through a connecting plate.

[0045] During operation, the staff places the artificial chamber test model on the placement rack 3 by using existing lifting equipment (such as a crane), and then the hydraulic cylinder 423 works to push the corresponding rack 1 422 to move downward. Through the engagement between the gear 1 421 and the two racks 1 422, the two racks 1 422 respectively drive the corresponding sliding plates 2 to approach each other through the connecting strips, and the sliding plates 2 drive the corresponding horizontal plates 20 to move synchronously, and the horizontal plates 20 drive the corresponding cover plates 200 to move synchronously.

[0046] like Figure 2 、 Figure 3 and Figure 8 As shown, the linkage group 43 includes a movable plate 430, and the rear end face of the vertical plate 1 is provided with a movable plate 430 for sliding left and right. The upper and lower end faces of the movable plate 430 are fixedly provided with vertical rods 431. A cylindrical hole is opened through the rear section of the horizontal plate 20, and two left-right symmetrical guide plates 432 are fixedly provided on the opposite surfaces of the two horizontal plates 20. The guide plates 432 on the same horizontal plate 20 gradually move away from the sliding plate 2 toward the movable plate 430.

[0047] like Figure 2 and Figure 4 As shown, the centering group 41 includes a sliding rod 410 , and four sliding rods 410 evenly distributed in the circumference are slidably provided on the fixed cylinder 40 . The end surfaces of the sliding rods 410 away from the corresponding rotating shaft 202 are fixedly provided with arc plates 411 .

[0048] like Figure 4 and Figure 5 As shown, four circumferentially evenly distributed arc bars 412 are fixedly provided on the lower rotating shaft 202, and the lower rotating shaft 202 is connected to the external motor 2 (not shown in the figure). A transmission groove is provided on the arc bar 412, and each of the sliding rods 410 is fixedly provided with a transmission column 413 located in the corresponding transmission groove.

[0049] During operation, as the two horizontal plates 20 approach each other, the horizontal plates 20 drive the guide plates 432 to move synchronously. After the guide plates 432 move to contact the vertical rods 431, the cooperation between the vertical rods 431 and the guide plates 432 makes the two vertical rods 431 pass through the cylindrical holes on the corresponding horizontal plates 20 respectively. The two horizontal plates 20 drive the corresponding cover plates 200 to continue to approach each other until the arc plate 411 moves into the interior of the artificial chamber test model. The external motor 2 drives the lower rotating shaft 202 to rotate, and the lower rotating shaft 202 drives the arc bar 412 to rotate synchronously. Through the cooperation between the transmission groove and the corresponding transmission column 413, the transmission column 413 moves in the direction away from the rotation shaft 202. The transmission column 413 pushes the arc plate 411 to move synchronously through the sliding rod 410, and one side of the arc After the plate 411 contacts the artificial chamber test model, the external motor 2 continues to work, and the position of the cover plate 200 is adjusted through the cooperation between the four arc-shaped plates 411, so that the axis of the lower cover plate 200 is collinear with the axis of the artificial chamber test model. The movement of the lower cover plate 200 drives the corresponding horizontal plate 20 to move synchronously. The lower horizontal plate 20 drives the movable plate 430 to move synchronously through the corresponding vertical rod 431 to adjust the left and right positions of the cover plate 200. The movable plate 430 drives the upper horizontal plate 20 to move synchronously through the upper vertical rod 431, thereby adjusting the position of the upper cover plate 200, so that the axes of the two cover plates 200 are collinear with the axis of the artificial chamber test model. At this time, neither cover plate 200 is in contact with the artificial chamber test model, and then the horizontal plates 20 continue to approach each other.

[0050] like Figure 4 、 Figure 6 and Figure 7 As shown, two circumferentially evenly distributed fixing bars 55 are fixedly provided on the sleeve 50, and a gear 2 550 is rotatably provided on the upper end surface of the fixing bar 55, and two racks 2 551 respectively meshing with the corresponding gears 2 550 are fixedly provided on the lower rotating plate 1 51, and a rotating cylinder located on the lower side of the sleeve 50 is rotatably sleeved on the lower rotating shaft 202, and a rotating plate 2 552 is fixedly sleeved on the rotating cylinder, and two racks 3 553 respectively meshing with the corresponding gears 2 550 are fixedly provided on the upper end surface of the rotating plate 2 552 through a connecting block.

[0051] like Figure 2 、 Figure 4 、 Figure 6 and Figure 7As shown, a transmission group 56 is commonly provided on the rotating plate 2 552 and the upper rotating plate 1 51, and the transmission group 56 includes a transmission rod 560. Two transmission rods 560 are fixedly provided on the lower end surface of the upper rotating plate 1 51, and two guide cylinders 561 corresponding to the transmission rods 560 are fixedly provided on the upper end surface of the rotating plate 2 552. The guide cylinders 561 are divided into an inverted frustum section and a cylindrical section from top to bottom. Two through holes are provided on the rotating plate 2 552, respectively located below the corresponding guide cylinders 561. A volute spring 562 is commonly fixedly connected between the rotating cylinder and the fixed bar 55, and a positioning column 563 is fixedly provided on the lower end surface of the lower cover plate 200.

[0052] In the initial state, the rotating plate 2 552 is close to the positioning column 563. During operation, after completing the adjustment of the axial position of the two cover plates 200, the two horizontal plates 20 continue to drive the cover plates 200 to move toward the artificial chamber test model. The upper rotating plate 1 51 drives the transmission rod 560 to move downward, and the rotating plate 2 552 drives the guide cylinder 561 to move upward. After the transmission rod 560 moves to contact the conical section of the guide cylinder 561, the position of the transmission rod 560 is guided by the cooperation between the transmission rod 560 and the guide cylinder 561, so that the transmission rod 560 moves to pass through the corresponding through hole on the rotating plate 2 552. Then, the two horizontal plates 20 continue to move until the two cover plates 200 are close to the artificial chamber test model.

[0053] After both cover plates 200 are in close contact with the artificial chamber test model, the external motor 1 starts to drive the upper rotating shaft 202 to rotate, and the rotating shaft 202 drives the upper rotating plate 1 51 to rotate synchronously. The rotating plate 1 51 drives the rotating plate 2 552 to rotate synchronously through the two transmission rods 560. The volute spring 562 is compressed and deformed, and the rotating plate 2 552 drives the two racks 3 553 to rotate synchronously. The gear 2 550 is rotated by the meshing between the rack 3 553 and the gear 2 550. At the same time, the gear 2 550 is meshed with the rack 2 551, so that the rack 2 551 drives the lower rotating plate 1 51 to rotate, and the rotation direction of the lower rotating plate 1 51 is opposite to the rotation direction of the rotating plate 2 552 (see Figure 6 ).

[0054] like Figure 2 and Figure 4 As shown, the second clamping group 54 includes a guide bar 540. Two guide bars 540 are fixedly provided on the inner wall of the fixed cylinder 40, and the two guide bars 540 are centrally symmetrically distributed about the axis of the fixed cylinder 40. The guide bar 540 is divided into an inclined section and a horizontal section in the counterclockwise direction of the rotating cylinder, and the inclined section of the guide bar 540 is inclined downward in the counterclockwise direction. A fixed block 541 is fixedly provided on the lower end surface of the horizontal section of the guide bar 540, and a clamping bar 542 is fixedly provided on the lower end surface of the rotating shaft 202 on the upper side.

[0055] like Figure 1 、 Figure 5 and Figure 6 As shown, the clamping group 52 includes a rotating rod 520, and two rotating rods 520 are rotated and passed through the rotating plate 51 and are centrally symmetrical about the axis of the rotating shaft 202. The opposite surfaces of the two rotating rods 520 facing each other are fixedly provided with L-shaped plates 521, and the transverse section of the L-shaped plate 521 is fixedly provided with a limiting column 522 that cooperates with the threaded hole at the corresponding position on the artificial chamber test model.

[0056] like Figure 2 、 Figure 4 、 Figure 6 and Figure 7 As shown, the rotating group 53 includes a gear three 530, and the rotating rod 520 is fixedly provided with a gear three 530. The opposite back surfaces of the two cover plates 200 are fixedly provided with two rack fours 531 respectively meshing with the corresponding gear three 530, and the opposite back surfaces of the two cover plates 200 are fixedly provided with a fixed plate 532 for limiting the rotating plate one 51.

[0057] When the two cover plates 200 are both close to the artificial chamber test model, the snap-in strip 542 is located below the guide strip 540. During operation, the external motor drives the upper rotating shaft 202 to rotate, and the rotating shaft 202 drives the snap-in strip 542 to rotate synchronously until the snap-in strip 542 rotates to be close to the fixed block 541 and stops rotating. Through the cooperation between the snap-in strip 542 and the horizontal section of the guide strip 540, the movement of the two cover plates 200 in the up and down directions is limited to prevent the high-pressure gas in the subsequent artificial chamber test model from pushing the cover plates 200 out of contact with the artificial chamber test model.

[0058] When the upper rotating shaft 202 drives the clamping strip 542 to rotate, the upper rotating shaft 202 drives the corresponding rotating plate 1 51 to rotate synchronously. The rotating plate 1 51 drives the L-shaped plate 521 to rotate around the rotating shaft 202 through the rotating rod 520. Through the engagement between the gear 2 550 and the rack 2 551, the rotating rod 520 rotates around the rotating shaft 202 while rotating. The rotating rod 520 drives the L-shaped plate 521 to rotate synchronously. The L-shaped plate 521 drives the limiting column 522 to rotate synchronously. When the clamping strip 542 moves to contact with the fixed block 541, the limiting column 522 passes through the threaded hole on the artificial chamber test model and is rotated by the rotation direction of the upper and lower rotating plates 1 51. In opposite directions, the limiting posts 522 on the two rotating plates 51 pass through the corresponding threaded holes from different directions, and the position of the cover plate 200 is further limited by the cooperation between the limiting posts 522 and the threaded holes, thereby further improving the stability during the detection process. After the limiting posts 522 pass through the threaded holes, the high-pressure air tightness tester works, and compressed air or other inert gases (such as nitrogen) are delivered to the artificial chamber test model through the air pipe 201, and the pressure is gradually increased until it reaches a predetermined pressure value. After pressurization, it is maintained for a certain time, during which the pressure changes are continuously monitored, and the air tightness of the artificial chamber test model is recorded and analyzed by the high-pressure air tightness tester.

[0059] In addition, the present invention also provides a method for testing the high-pressure sealing performance of an artificial chamber test model:

[0060] S1. Movement and alignment: The hydraulic cylinder 423 works to move the two horizontal plates 20 closer to each other. During the process of the horizontal plates 20 moving closer to each other, the linkage group 43 works to align the two horizontal plates 20 in the vertical direction, thereby driving the cover plate 200 to align in the vertical direction.

[0061] S2. Centering adjustment: After the lower cover plate 200 drives the curved plate 411 to move until the curved plate 411 and the inner cavity of the artificial chamber test model are intertwined, the centering group 41 works to adjust the position of the cover plate 200 through the cooperation between the curved plate 411 and the inner cavity of the artificial chamber test model, so that both cover plates 200 are moved to be collinear with the axis of the artificial chamber test model.

[0062] S3. Move and fit tightly: After the two cover plates 200 are positioned, the two cover plates 200 continue to move closer to each other until both cover plates 200 are in close contact with the artificial chamber test model.

[0063] S4. Rotational connection: The upper rotation shaft 202 drives the clamping bar 542 to rotate, and the two cover plates 200 are clamped together through the cooperation between the clamping bar 542 and the horizontal section of the guide bar 540 .

[0064] S5. Rotation limit: The rotating plate 51 drives the clamping group 52 to rotate. During the rotation of the rotating plate, the rotating group 53 works to drive the clamping group 52 to rotate, so that when the clamping strip 542 rotates to contact the fixed block 541, the limiting column 522 rotates to the threaded hole at the corresponding position.

[0065] S6. Inflation detection: After all the limit columns 522 are rotated into the corresponding threaded holes, the high-pressure air tightness tester works, and compressed air or other inert gases (such as nitrogen) are delivered to the inner cavity of the artificial chamber test model through the air pipe 201, and the pressure is gradually increased until the predetermined pressure value is reached. After pressurization, it is maintained for a certain time. During this period, the pressure changes are continuously monitored, and the air tightness of the artificial chamber test model is recorded and analyzed by the high-pressure air tightness tester.

[0066] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0067] Furthermore, the terms "first," "second," "number one," and "number two" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature designated as "first," "second," "number one," or "number two" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0068] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "connected," "installed," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0069] The embodiments of this specific implementation method are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A high-pressure sealing test device for an artificial chamber test model, characterized in that: include: A vertical plate (1) is provided. Two sliding plates (2) symmetrically distributed up and down are slidably penetrated on the front end surface of the vertical plate (1). A horizontal plate (20) is slidably penetrated on the sliding plate (2). Cover plates (200) are fixedly provided on opposite surfaces of the two horizontal plates (20). A plurality of gas pipes (201) penetrating the cover plates (200) are fixedly provided on the upper cover plate (200). A rotating shaft (202) is rotatably penetrated on both cover plates (200). A support frame (10) is fixedly provided on the lower end surface of the vertical plate (1). A placement frame (3) for placing an artificial chamber test model is provided on the front side of the vertical plate (1). A primary limiting mechanism (4) is provided on the lower cover plate (200), the primary limiting mechanism (4) comprising a fixing cylinder (40), the upper end surface of the lower cover plate (200) being fixedly provided with the fixing cylinder (40), the fixing cylinder (40) being provided with a centering group (41) for adjusting the position of the cover plate (200), the rear end surface of the vertical plate (1) being provided with a driving group (42), and the two vertical plates (1) and the two horizontal plates (20) being jointly provided with a linkage group (43); A secondary limiting mechanism (5) is commonly provided on the two horizontal plates (20), and the secondary limiting mechanism (5) includes a sleeve (50). The lower end surface of the lower horizontal plate (20) is fixedly provided with a sleeve (50) sleeved on the corresponding rotating shaft (202). A rotating plate (51) is fixedly sleeved on the sleeve (50) and the upper rotating shaft (202). A clamping group (52) is provided on each of the two rotating plates (51). A rotating group (53) is commonly provided between each cover plate (200) and the corresponding rotating plate (51). A clamping group (54) for clamping the two cover plates (200) is commonly provided between the upper rotating shaft (202) and the fixed cylinder (40). The secondary limiting mechanism (5) also includes a limiting column (522) that cooperates with a threaded hole on the artificial chamber test model.

2. The high-pressure sealing test device for an artificial chamber test model according to claim 1, characterized in that: The driving group (42) includes a transmission shaft (420), the rear end face of the vertical plate (1) is rotatably provided with the transmission shaft (420), a gear (421) is fixedly sleeved on the transmission shaft (420), and the rear end face of the vertical plate (1) is slidably provided with two racks (422) that are centrally symmetrical about the axis of the transmission shaft (420), and the racks (422) are meshed with the gears (421), and the two racks (422) are fixedly connected to the corresponding sliding plates (2) through connecting bars, respectively. A rectangular plate is fixedly provided on the rear end face of the vertical plate (1), and a hydraulic cylinder (423) is provided on the lower end face of the rectangular plate, and the telescopic end of the hydraulic cylinder (423) is fixedly connected to the corresponding rack (422) through the connecting plate.

3. The high-pressure sealing test device for an artificial chamber test model according to claim 1, characterized in that: The linkage group (43) includes a movable plate (430), the rear end surface of the vertical plate (1) is provided with a movable plate (430) for sliding left and right, the upper and lower end surfaces of the movable plate (430) are fixedly provided with vertical rods (431), the rear section of the horizontal plate (20) is penetrated by a cylindrical hole, and the opposite surfaces of the two horizontal plates (20) are fixedly provided with two left-right symmetrical guide plates (432), and the guide plates (432) on the same horizontal plate (20) gradually move away from the sliding plate (2) toward the movable plate (430).

4. The high-pressure sealing test device for an artificial chamber test model according to claim 1, characterized in that: The centering group (41) includes a sliding rod (410). Four sliding rods (410) evenly distributed in the circumferential direction are slidably arranged on the fixed cylinder (40). The end surfaces of the sliding rods (410) away from the corresponding rotating shaft (202) are fixedly provided with arc plates (411).

5. The high-pressure sealing test device for an artificial chamber test model according to claim 4, characterized in that: Four circumferentially evenly distributed arcuate bars (412) are fixedly provided on the lower rotating shaft (202), transmission grooves are provided on the arcuate bars (412), and each sliding rod (410) is fixedly provided with a transmission column (413) located in the corresponding transmission groove.

6. The high-pressure sealing test device for an artificial chamber test model according to claim 1, characterized in that: The sleeve (50) is fixedly provided with two circumferentially evenly distributed fixed bars (55), the upper end surface of the fixed bar (55) is provided with a gear 2 (550) which is rotated by a vertical axis, the lower rotating plate 1 (51) is fixedly provided with two racks 2 (551) which are respectively engaged with the corresponding gear 2 (550), the lower rotating shaft (202) is rotatably provided with a rotating cylinder located at the lower side of the sleeve (50), the rotating cylinder is fixedly provided with a rotating plate 2 (552), the upper end surface of the rotating plate 2 (552) is fixedly provided with two racks 3 (553) which are respectively engaged with the corresponding gear 2 (550) through a connecting block.

7. The high-pressure sealing test device for an artificial chamber test model according to claim 6, characterized in that: The second rotating plate (552) and the first upper rotating plate (51) are jointly provided with a transmission group (56), and the transmission group (56) includes a transmission rod (560). Two transmission rods (560) are fixedly provided on the lower end surface of the first upper rotating plate (51). Two guide cylinders (561) corresponding to the transmission rods (560) are fixedly provided on the upper end surface of the second rotating plate (552). The guide cylinders (561) are divided into an inverted frustum section and a cylindrical section from top to bottom. Two through holes are respectively provided on the second rotating plate (552) and are located below the corresponding guide cylinders (561). A volute spring (562) is jointly fixedly connected between the rotating cylinder and the fixed bar (55). A positioning column (563) is fixedly provided on the lower end surface of the lower cover plate (200).

8. The high-pressure sealing test device for an artificial chamber test model according to claim 1, characterized in that: The second clamping group (54) includes a guide bar (540). Two guide bars (540) are fixedly provided on the inner wall of the fixed cylinder (40), and the two guide bars (540) are centrally symmetrically distributed about the axis of the fixed cylinder (40). The guide bar (540) is divided into an inclined section and a horizontal section in the counterclockwise direction of the rotating cylinder, and the inclined section of the guide bar (540) is inclined downward in the counterclockwise direction. A fixed block (541) is fixedly provided on the lower end surface of the horizontal section of the guide bar (540), and a clamping bar (542) is fixedly provided on the lower end surface of the rotating shaft (202) on the upper side.

9. The high-pressure sealing test device for an artificial chamber test model according to claim 1, characterized in that: The first clamping group (52) includes a rotating rod (520), and two rotating rods (520) are rotatably passed through the first rotating plate (51). The opposite surfaces of the two rotating rods (520) facing each other are fixedly provided with L-shaped plates (521), and the transverse section of the L-shaped plate (521) is fixedly provided with a limiting column (522) that matches the threaded hole at the corresponding position on the artificial chamber test model.

10. The high-pressure sealing test device for an artificial chamber test model according to claim 9, characterized in that: The rotating group (53) includes a gear three (530), the rotating rod (520) is fixedly provided with a gear three (530), the opposite back surfaces of the two cover plates (200) are fixedly provided with two racks four (531) respectively meshing with the corresponding gear three (530), and the opposite back surfaces of the two cover plates (200) are fixedly provided with a fixed plate (532) for limiting the rotating plate one (51).

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