High-pressure sealing test device and method for artificial chamber test model

Abstract

The invention relates to the technical field of air tightness detection of artificial chamber test models, in particular to a high-pressure sealing test device and method for an artificial chamber test model, and the device comprises a vertical plate, a placement frame, a primary limiting mechanism and a secondary limiting mechanism. Two cover plates are clamped through second clamping sets, movement of the two cover plates in the vertical direction is limited, rotating sets on two first rotating plates work synchronously through a transmission set in a secondary limiting mechanism, and the rotating sets drive the corresponding second clamping sets to be clamped with threaded holes in the artificial chamber at the same time; according to the invention, through the cooperation between the limiting columns and the threaded holes in the artificial chamber, the air tightness between the two cover plates and the artificial chamber test model is improved, and errors caused by gaps between the cover plates and the artificial chamber test model in the air tightness detection process are reduced. The positions of the two cover plates are adjusted in the process that the two cover plates are close to each other, so that the axes of the two cover plates are collinear with the axis of the artificial chamber test model, and the sealing process is simplified.

Description

Technical Field

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

[0002] Artificial chambers are a special type of underground space, mainly used to store high-pressure gases, such as natural gas, compressed air, etc., and are increasingly used in the field of modern energy storage. The sealing performance of artificial chambers is the most important when they are used. Good sealing performance can effectively prevent the leakage of gas or liquid. Therefore, high-pressure airtightness tests are required before the use of artificial chambers. However, since artificial chambers are relatively large, artificial chamber test models are usually developed and designed before the production of artificial chambers to ensure that the high-pressure sealing performance tests of the artificial chamber test models are qualified before production. The existing artificial chamber test models are generally cylindrical metal structures (see Fig. 9 ), a plurality of annular steel plates are arranged on the circumferential surface of the 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 sealing test process of the artificial chamber test model, it is usually necessary to use a partition to seal the openings at both ends of the artificial chamber test model, and then transport high-pressure gas and inert gas into the cavity of the artificial chamber test model through a gas pipe, and use a high-pressure airtightness tester to test the high-pressure airtightness in the artificial chamber test model.

[0004] The above-mentioned detection process has the following deficiencies: During the above-mentioned detection process, the air pressure in the artificial chamber test model is too high, which may cause the sealing partition to be pushed by the high-pressure gas to lose contact with the artificial chamber test model, thereby increasing the error in the airtightness detection process, making the airtightness obtained by the test lower than the airtightness of the artificial chamber test model; secondly, in the process of sealing the two ends of the artificial chamber test model with the partition, the position of the partition may deviate from the cavity part of the artificial chamber test model, and the position of the cover plate needs to be adjusted multiple times to make the position of the cover plate axis 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 penetrates the sliding plate, the opposite surfaces of the two horizontal plates are fixedly provided with cover plates, the upper cover plate is fixedly provided with a plurality of air pipes penetrating the cover plate, both cover plates are rotatably penetrated with a rotating shaft, the lower end face of the vertical plate is fixedly provided with a supporting frame, and the front side of the vertical plate is provided with a placement frame for placing the artificial chamber test model.

[0007] A primary limiting mechanism is arranged on the lower cover plate, and the primary limiting mechanism includes a fixed cylinder. A fixed cylinder is fixedly arranged on the upper end surface of the lower cover plate, and a centering group for adjusting the position of the cover plate is arranged on the fixed cylinder. A driving group is arranged on the rear end surface of the vertical plate, and a linkage group is arranged 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. A sleeve sleeved on the corresponding rotating shaft is fixedly provided on the lower end surface of the lower horizontal plate. A rotating plate 1 is fixedly provided on the sleeve and the upper rotating shaft. A clamping group 1 is provided on each of the two rotating plates 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 gears 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 evenly distributed in the circumferential direction are slidably arranged on the fixed cylinder, and arc plates are fixedly arranged on the end surfaces of the sliding rods away from the corresponding rotating shafts.

[0012] According to a favorable embodiment, four arc-shaped bars evenly distributed in the circumference are fixedly provided on the rotating shaft at the lower side, transmission grooves are opened on the arc-shaped 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 a gear 2 is rotatably provided on the upper end surface of the fixing bar through a vertical axis, and two racks 2 respectively meshing with the corresponding gears 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 respectively meshing with the corresponding gears 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, and 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, and the guide cylinders are divided into an inverted frustum section and a cylindrical section from top to bottom, and two through holes are penetrated on the rotating plate 2 and are respectively located below the corresponding guide cylinders, and 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 arranged on the inner wall of the fixed cylinder, and the two guide bars are centrally symmetrically distributed about the axis of the fixed cylinder, 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 arranged on the lower end surface of the horizontal section of the guide bar, and a clamping strip is fixedly arranged 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 rotatably penetrated on the rotating plate 1. L-shaped plates are fixedly provided on the opposite surfaces of the two rotating rods facing each other up and down, and limiting columns that cooperate with threaded holes at corresponding positions on the artificial chamber test model are fixedly provided on the transverse section of the L-shaped plate.

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

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

[0019] S1. Movement and alignment: The hydraulic cylinder works to drive the two horizontal plates to approach each other. During the process of the horizontal plates approaching 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 the two cover plates are positioned, the two cover plates continue to move closer to each other until the two cover plates are in close contact with the artificial chamber test model.

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

[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 starts to work, 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. The pressure is maintained for a certain period of time after pressurization, 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.

[0025] To summarize, 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 movement of the two cover plates in the up and down directions. 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 is used to make the rotating groups on the two rotating plates one work synchronously, and the rotating group drives the corresponding clamping group two to clamp with the threaded holes on the artificial chamber test model at the same time. Through the cooperation between the limiting columns and the threaded holes 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 detection 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 drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0028] Figure 1 A three-dimensional structural schematic diagram 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 three-dimensional structural schematic diagram 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 a cover plate, a centering group and a 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 group and a snap-on group 1 provided 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] Fig. 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. Air pipe; 202. Rotating shaft; 3. Placement frame; 4. Primary limiting mechanism; 40. Fixed cylinder; 41. Centering group; 410. Sliding rod; 411. Arc plate; 412. Arc 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 one; 52. Snap-on group one; 520. Rotating rod; 521. L-shaped plate; 522. Limiting column; 53. Rotating group; 530. Gear three; 531. Rack four; 532. Fixed plate; 54. Snap-on group two; 540. Guide strip; 541. Fixed block; 542. Snap-on strip; 55. Fixed strip; 550. Gear two; 551. Rack two; 552. Rotating plate two; 553. Rack three; 56. Transmission group; 560. Transmission rod; 561. Guide cylinder; 562. Volute spring; 563. Positioning column. DETAILED DESCRIPTION

[0039] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by 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, the sliding plate 2 is slidably penetrated by a horizontal plate 20, 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 rubber tubes, a rotating shaft 202 is rotatably penetrated on the two cover plates 200, a supporting 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 arranged 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 a centering group 41 for adjusting the position of the cover plate 200 is arranged on the fixed cylinder 40. A driving group 42 for driving the two sliding plates 2 to approach each other is arranged on the rear end surface of the vertical plate 1, and a linkage group 43 is commonly arranged 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, and the lower end surface of the lower horizontal plate 20 is fixedly provided with a sleeve 50 sleeved on the corresponding rotating shaft 202, and a rotating plate 51 is fixedly sleeved on the sleeve 50 and the upper rotating shaft 202, and the upper rotating shaft 202 is connected to an external motor 1 (not shown in the figure), and a clamping group 52 is provided on the two rotating plates 51, and a rotating group 53 is commonly provided between each cover plate 200 and the corresponding rotating plate 51, and 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, and 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 in line 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, the 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 limit column 522 rotates to the threaded hole at the corresponding position of the artificial chamber test model, so as to further limit 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 process 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, 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 strips, respectively, and 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.

[0045] During operation, the staff places the artificial chamber test model on the placement frame 3 by using existing lifting equipment (such as a crane), and then the hydraulic cylinder 423 works to push the corresponding rack 422 to move downward, and through the engagement between the gear 421 and the two racks 422, the two racks 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, the rear end surface of the vertical plate 1 is slidably provided with a movable plate 430, 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.

[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 circumferential direction are slidably arranged on the fixed cylinder 40 , and arc plates 411 are fixedly arranged on the end surfaces of the sliding rods 410 away from the corresponding rotating shafts 202 .

[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 an external motor 2 (not shown in the figure). A transmission groove is opened on the arc bar 412, and a transmission column 413 located in the corresponding transmission groove is fixedly provided on each sliding rod 410.

[0049] During operation, when 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 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 plate 411 contacts the artificial chamber test model, external motor 2 continues to work, and the position of cover plate 200 is adjusted through the cooperation between the four arc plates 411, so that the axis of the lower cover plate 200 is collinear with the axis of the artificial chamber test model, and the movement of the lower cover plate 200 drives the corresponding horizontal plate 20 to move synchronously, and the lower horizontal plate 20 drives the moving plate 430 to move synchronously through the corresponding vertical rod 431 to adjust the left and right positions of the cover plate 200, and the moving 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, the sleeve 50 is fixedly provided with two circumferentially evenly distributed fixing bars 55, the upper end surface of the fixing bar 55 is rotatably provided with a gear 2 550, and the lower rotating plate 1 51 is fixedly provided with two rack 2 551 respectively meshing with the corresponding gear 2 550, and the lower rotating shaft 202 is rotatably provided with a rotating cylinder located at the lower side of the sleeve 50, and a rotating plate 2 552 is fixedly provided on the rotating cylinder, and the upper end surface of the rotating plate 2 552 is fixedly provided with two rack 3 553 respectively meshing with the corresponding gear 2 550 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 penetrated through the rotating plate 2 552 and are 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 the adjustment of the axial position of the two cover plates 200 is completed, the two horizontal plates 20 continue to drive the cover plates 200 to move toward the artificial chamber test model, and 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, and 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 the two cover plates 200 are both close to the artificial chamber test model, the external motor 1 works 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, and the spiral spring 562 is compressed and deformed. The rotating plate 2 552 drives the two racks 3 553 to rotate synchronously, and 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, and two guide bars 540 are fixedly arranged 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, and the guide bar 540 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 540 is inclined downward in the counterclockwise direction, and a fixed block 541 is fixedly arranged on the lower end surface of the horizontal section of the guide bar 540, and a clamping bar 542 is fixedly arranged 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 that rotate and penetrate the rotating plate 51 and are centrally symmetrical about the axis of the rotating shaft 202, and L-shaped plates 521 are fixedly provided on the opposite surfaces of the two rotating rods 520 that are opposite to each other up and down, and limiting columns 522 that cooperate with threaded holes at corresponding positions on the artificial chamber test model are fixedly provided on the transverse section of the L-shaped plate 521.

[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 fixing 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 clamping 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 clamping strip 542 to rotate synchronously until the clamping strip 542 rotates to be close to the fixed block 541 and then stops rotating. Through the cooperation between the clamping 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 plate 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 meshing 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 upper and lower rotating plates 1 51. In the opposite direction, 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 a predetermined pressure value is reached. After pressurization, the pressure is maintained for a certain period of 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 drive the two horizontal plates 20 to approach each other. During the process of the horizontal plates 20 approaching 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 arc plate 411 to move until the arc 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 arc 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 cling: 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 clamping: The upper rotating shaft 202 drives the clamping strip 542 to rotate, and the two cover plates 200 are clamped together through the cooperation between the clamping strip 542 and the horizontal section of the guide strip 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 drives the clamping group 52 to rotate, so that when the clamping strip 542 rotates to contact the fixed block 541, the limit 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 starts to work, 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 a predetermined pressure value is reached. The pressure is maintained for a certain period of time after pressurization, 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.

[0066] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the 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 devices or elements 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 contours of each component itself.

[0067] In addition, the terms "first", "second", "number one", "number two" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", "number one", "number two" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0068] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to 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 protection scope of the present invention. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be included in the protection scope 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), the front end surface of the vertical plate (1) is slidably penetrated by two sliding plates (2) symmetrically distributed up and down, the sliding plate (2) is slidably penetrated by a horizontal plate (20) left and right, the opposite surfaces of the two horizontal plates (20) are fixedly provided with cover plates (200), the upper cover plate (200) is fixedly provided with a plurality of gas transmission pipes (201) penetrating the cover plate (200), the two cover plates (200) are rotatably penetrated by a rotating shaft (202), the lower end surface of the vertical plate (1) is fixedly provided with a support frame (10), and the front side of the vertical plate (1) is provided with a placement frame (3) for placing an artificial chamber test model; 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) is fixedly provided with the fixing cylinder (40), a centering group (41) for adjusting the position of the cover plate (200) is provided on the fixing cylinder (40), a driving group (42) is provided on the rear end surface of the vertical plate (1), and a linkage group (43) is provided on the two vertical plates (1) and the two horizontal plates (20); A secondary limiting mechanism (5) is commonly provided on the two horizontal plates (20), the secondary limiting mechanism (5) comprising a sleeve (50), a sleeve (50) sleeved on a corresponding rotating shaft (202) is fixedly provided on the lower end surface of the lower horizontal plate (20), a rotating plate (51) is fixedly sleeved on the sleeve (50) and the upper rotating shaft (202), a clamping group (52) is commonly provided on 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), and the secondary limiting mechanism (5) further comprises a limiting column (522) matched 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) comprises 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), the rear end face of the vertical plate (1) is slidably provided with two racks (422) which are centrally symmetrical about the axis of the transmission shaft (420), and the racks (422) are meshed with the gears (421), the two racks (422) are respectively fixedly connected to the corresponding sliding plates (2) through connecting bars, the rear end face of the vertical plate (1) is fixedly provided with a rectangular plate, the lower end face of the rectangular plate is provided with a hydraulic cylinder (423), 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) comprises 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) comprises a sliding rod (410), and four sliding rods (410) evenly distributed in the circumferential direction are slidably arranged on the fixed cylinder (40), and arc plates (411) are fixedly arranged on the end surfaces of the sliding rods (410) away from the corresponding rotating shafts (202).

5. The artificial chamber test model high pressure sealing test device according to claim 4, characterized in that: Four arc-shaped bars (412) evenly distributed in the circumferential direction are fixedly arranged on the rotating shaft (202) at the lower side, a transmission groove is opened on the arc-shaped bar (412), and a transmission column (413) located in the corresponding transmission groove is fixedly arranged on each sliding rod (410).

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 fixing bars (55), the upper end surface of the fixing bar (55) is provided with a gear 2 (550) rotatably arranged via a vertical axis, the lower rotating plate 1 (51) is fixedly provided with two racks 2 (551) respectively meshing 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) respectively meshing with the corresponding gear 2 (550) via a connecting block.

7. The high pressure sealing test device for an artificial chamber test model according to claim 1, characterized in that: The second rotating plate (552) and the first upper rotating plate (51) are jointly provided with a transmission group (56), the transmission group (56) comprising 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), and a positioning column (563) is fixedly provided on the lower end surface of the lower cover plate (200).

8. The artificial chamber test model high pressure sealing test device according to claim 1, characterized in that: The second clamping group (54) comprises a guide bar (540). Two guide bars (540) are fixedly arranged 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 sequence along 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 arranged on the lower end surface of the horizontal section of the guide bar (540), and a clamping bar (542) is fixedly arranged on the lower end surface of the rotating shaft (202) on the upper side.

9. The artificial chamber test model high pressure sealing test device according to claim 1, characterized in that: The clamping group (52) comprises a rotating rod (520), and two rotating rods (520) are rotatably penetrated on the rotating plate (51), and L-shaped plates (521) are fixedly arranged on the opposite surfaces of the two rotating rods (520) facing each other up and down, and limiting columns (522) matching with threaded holes at corresponding positions on the artificial chamber test model are fixedly arranged on the transverse sections of the L-shaped plates (521).

10. The artificial chamber test model high pressure sealing test device according to claim 9, characterized in that: The rotating group (53) comprises a gear three (530), the rotating rod (520) is fixedly sleeved 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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