Self-balancing sealing switching assembly and comprehensive test device

Abstract

The utility model provides a self-balancing sealing switching assembly and a comprehensive test device, the self-balancing sealing switching assembly is arranged between a test box and a vibration exciter, is used for transmitting vibration force of the vibration exciter into the test box, and comprises an outer support, an inner support and a switching plate, the outer support is arranged on a shell of the vibration exciter, and the inner support is arranged on the shell of the vibration exciter. The inner support is connected with the output end of the vibration exciter, the inner support is arranged in the outer support, the outer support is provided with a hole through which the inner support can penetrate to do reciprocating motion, the adapter plate is arranged at the top of the inner support, and a balance supporting piece is arranged between the outer support and the inner support and used for balancing pressure inside and outside the test box; a flexible sealing structure for sealing is arranged between the outer bracket and the test box; a rolling sealing piece used for sealing is arranged between the outer support and the adapter plate. By means of the structure, air pressure in the test box is balanced, sealing between the test box and the outer support and sealing between the adapter plate and the outer support are achieved, the sealing device is matched with a conventional vibration table, and the specification requirements for the test box and the vibration table are lowered.

Description

Technical Field

[0001] The utility model relates to the technical field of vibration devices, in particular to a self-balancing sealing adapter component and a comprehensive testing device. Background Art

[0002] Vibration test is a typical test of environmental mechanical test, which is widely used in mechanical simulation verification and reliability verification of automobile parts, aerospace products, etc. In order to simulate the actual mechanical environment of the product more realistically, the product is usually subjected to vibration test and other environmental tests at the same time, such as air pressure test, temperature test, humidity test, salt spray test, light test, etc.

[0003] When cooperating with environmental test systems, the following technical issues often need to be considered: first, when there is a pressure difference between the inside and outside of the test chamber, how to adjust and keep the pressure difference between the two consistent; second, seal the moving parts between the test chamber and the vibration table; third, isolate the moving parts between the test chamber and the vibration table. Therefore, the structure of the vibration table is often improved to solve the above technical problems. However, the improvement of the vibration table is relatively cumbersome, costly, and has a general adaptation range. Therefore, it is necessary to design a component to adapt the conventional vibration table and the environmental test chamber. Summary of the invention

[0004] The utility model aims to provide a self-balancing seal adapter assembly and a comprehensive test device to solve the above problems.

[0005] The technical solution adopted by the utility model is:

[0006] A self-balancing sealed adapter assembly is arranged between a test box and an exciter, and is used to transfer the vibration force of the exciter to the test box, comprising an outer bracket, an inner bracket and an adapter plate, wherein the outer bracket is arranged on the housing of the exciter, the inner bracket is connected to the output end of the exciter, the inner bracket is arranged in the outer bracket, and a hole is arranged on the outer bracket for the inner bracket to pass through for reciprocating motion, the adapter plate is arranged on the top of the inner bracket, a balancing support is arranged between the outer bracket and the inner bracket, and the balancing support is used to balance the pressure inside and outside the test box; a flexible sealing structure for sealing is arranged between the outer bracket and the test box; and a rolling seal for sealing is arranged between the outer bracket and the adapter plate.

[0007] As a further improved technical solution of the utility model, the balancing support is an air spring, a first connecting plate is arranged in the middle of the outer bracket, the inner bracket includes a second connecting plate and a plurality of connecting columns arranged on the second connecting plate, the second connecting plate is connected to the output end of the exciter, the connecting columns are connected to the adapter plate, the second connecting plate is located below the first connecting plate, the top surface of the air spring is connected to the first connecting plate, and the bottom surface of the air spring is connected to the second connecting plate.

[0008] As a further improved technical solution of the utility model, the outer bracket includes a first annular plate and a second annular plate arranged coaxially, the diameter of the first annular plate is smaller than the diameter of the second annular plate, the second annular plate is fixedly mounted on the housing of the exciter, and a plurality of first ribs are arranged between the first annular plate and the second annular plate; the first connecting plate is arranged at the lower part of the first annular plate, the diameter of the first connecting plate is smaller than the diameter of the first annular plate, and a plurality of second ribs are arranged between the second annular plate and the first connecting plate, and the first annular plate, the first connecting plate and the two adjacent second ribs form a hole for the connecting column to pass through.

[0009] As a further improved technical solution of the utility model, the flexible sealing structure includes a first pressure ring, a second pressure ring, a third pressure ring, a fourth pressure ring and a flexible sealing membrane, the first pressure ring is arranged on an external bracket, the second pressure ring is pressed on the first pressure ring, the third pressure ring is arranged on a test box, the fourth pressure ring is pressed on the third pressure ring, one end of the flexible sealing membrane is arranged between the first pressure ring and the second pressure ring and is pressed tightly by the first pressure ring and the second pressure ring, and the other end of the flexible sealing membrane is arranged between the third pressure ring and the fourth pressure ring and is pressed tightly by the third pressure ring and the fourth pressure ring.

[0010] As a further improved technical solution of the utility model, a first annular groove is arranged on the bottom surface of the second pressure ring, the flexible sealing membrane includes a first connecting end, a membrane body and a second connecting end connected in sequence, the first connecting end is arranged in the first annular groove, a second annular groove is arranged on the bottom surface of the fourth pressure ring, and the second connecting end is arranged in the second annular groove; in the direction of the first annular groove away from the membrane body, the height of the first annular groove gradually increases.

[0011] As a further improved technical solution of the utility model, the rolling seal is a folded sealing membrane, one end of the rolling seal is fixed to the adapter plate, and the other end of the rolling seal is fixed to the outer bracket.

[0012] As a further improved technical solution of the utility model, the rolling seal includes a third connection end, a folded portion, a flat portion and a fourth connection end connected in sequence, the folded portion is arranged between the adapter plate and the first pressure ring and is supported by the adapter plate and the first pressure ring, the folded portion is U-shaped and the U-shaped opening is downward, the flat portion is arranged between the first pressure ring and the outer bracket and is pressed by the first pressure ring and the outer bracket, the third connection end is fixed on the adapter plate, and the fourth connection end is fixed on the outer bracket.

[0013] A comprehensive test device includes an exciter, a test box and the self-balancing sealed adapter assembly as described above, wherein a mounting hole is arranged at the bottom of the test box, the self-balancing sealed adapter assembly extends into the mounting hole and is connected to the test box through the mounting hole, a vibration platform is connected to the adapter plate, the vibration platform is used to install a test piece, and a controllable pressure component, temperature component and humidity component are arranged in the test box, and the pressure component, temperature component and humidity component are used to adjust the pressure, temperature and humidity in the test box.

[0014] As a further improved technical solution of the utility model, an annular installation groove is arranged at the bottom of the test box, and the third pressure ring is arranged in the annular installation groove.

[0015] As a further improved technical solution of the utility model, an annular sealing ring is arranged between the third pressure ring and the annular mounting groove.

[0016] The beneficial effects of the utility model are:

[0017] Through the above structure, the air spring can be adjusted to achieve balance of the air pressure in the test box and have good supporting force; the flexible sealing structure is provided to achieve sealing between the test box and the external bracket, and the rolling seal is provided to achieve sealing between the adapter plate and the external bracket, which is suitable for conventional vibration tables and reduces the specification requirements for the test box and the vibration table. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a self-balancing seal adapter assembly;

[0019] Figure 2 It is a schematic diagram of the structure of the outer bracket and the inner bracket;

[0020] Figure 3 is a cross-sectional view of the comprehensive test device;

[0021] Figure 4 yes Figure 3 The enlarged view of point A in the middle;

[0022] Figure 5 It is an exploded view of the balanced seal adapter assembly without a flexible seal structure;

[0023] Figure 6 is a structural schematic diagram of a flexible sealing structure;

[0024] Figure 7 is a schematic diagram of the bottom of the test chamber.

[0025] in:

[0026] 1-outer bracket, 11-first connecting plate, 12-first annular plate, 13-second annular plate, 14-first rib plate, 15-second rib plate,

[0027] 2-inner bracket, 21-second connecting plate, 22-connecting column,

[0028] 3- Adapter plate,

[0029] 4- Air spring,

[0030] 5-flexible sealing structure, 51-first pressure ring, 52-second pressure ring, 53-third pressure ring, 54-fourth pressure ring, 55-flexible sealing membrane, 56-first connecting end, 57-membrane body, 58-second connecting end,

[0031] 6- rolling seal, 61- third connection end, 62- folding portion, 63- flat portion, 64- fourth connection end, 7- test box, 71- mounting hole, 72- annular mounting groove, 73- annular sealing ring,

[0032] 8-Vibrator. DETAILED DESCRIPTION

[0033] The present invention will be described in detail below in conjunction with the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional changes made by a person skilled in the art based on these embodiments are all within the scope of protection of the present invention.

[0034] If the utility model involves directions (e.g., up, down, left, right, front, back, outside, inside, etc.) when describing, it is necessary to define the directions involved, such as "In order to clearly express the positions and directions described in the utility model, the end close to the operator is the proximal end, and the end away from the operator is the distal end." Or define it with the paper as a reference, etc. Of course, if the positional relationship between the two is defined by mutual reference in the subsequent description, it does not need to be defined here.

[0035] A self-balancing seal adapter assembly, such as Figure 3 As shown, the self-balancing sealing adapter assembly is arranged between the test box 7 and the exciter 8, and is used to transmit the vibration force of the exciter 8 to the vibration platform in the test box 7, as shown in FIG. Figures 1 to 4 As shown, the self-balancing sealed adapter assembly includes an outer bracket 1, an inner bracket 2 and an adapter plate 3, the outer bracket 1 is arranged on the shell of the exciter 8, the inner bracket 2 is connected to the output end of the exciter 8, the inner bracket 2 is arranged in the outer bracket 1, and a hole is arranged on the outer bracket 1 for the inner bracket 2 to pass through for reciprocating motion, the adapter plate 3 is arranged on the top of the inner bracket 2, the adapter plate 3 is used to connect the vibration platform, and a balancing support is arranged between the outer bracket 1 and the inner bracket 2, and the balancing support is used to balance the pressure inside and outside the test box 7; A flexible sealing structure 5 is provided between the frame 1 and the test box 7, and the flexible sealing structure 5 is used for sealing, thereby reducing the relative position accuracy requirement between the test box 7 and the exciter 8 and isolating vibration transmission; a rolling seal 6 is provided between the outer bracket 1 and the adapter plate 3, and the rolling seal 6 is used for sealing, isolating the interior of the test box 7 from the external space, and protecting the test box 7 and the structure inside the test box 7; based on the above structure, the self-balancing sealing adapter assembly can apply a conventional vibration table to a comprehensive test system without the need for a fully enclosed vibration table.

[0036] As an embodiment of the present utility model, Figure 5 As shown, the balancing support member is an air spring 4, which is connected to an external air source. A first connecting plate 11 is arranged in the middle of the outer bracket 1, and the inner bracket 2 includes a second connecting plate 21 and a plurality of connecting columns 22 arranged on the second connecting plate 21. The second connecting plate 21 is connected to the output end of the exciter 8, and the connecting column 22 is connected to the adapter plate 3. The second connecting plate 21 is located below the first connecting plate 11. The top surface of the air spring 4 is connected to the first connecting plate 11, and the bottom surface of the air spring 4 is connected to the second connecting plate 21. The air spring 4 is inflated by an external air source to extend the air spring 4. The extended air spring 4 generates a supporting force on the inner bracket 2 in the direction of the vibrator 8, thereby balancing the low-pressure suction of the test box 7 on the moving coil of the vibrator 8 and the adapter assembly, adjusting the internal pressure, and maintaining the high stability of the self-balancing sealing adapter assembly; at the same time, the air spring 4 is installed inside the adapter assembly. Since there is a large space inside the adapter assembly, a larger air spring 4 can be selected, so that the air spring 4 has a stronger balancing supporting force.

[0037] As an embodiment of the present utility model, Figure 2 , 5As shown, the outer bracket 1 includes a first annular plate 12 and a second annular plate 13 which are coaxially arranged. The diameter of the first annular plate 12 is smaller than the diameter of the second annular plate 13. The second annular plate 13 is fixedly mounted on the housing of the exciter 8. Specifically, the second annular plate 13 can be mounted on the upper cover of the exciter 8 and is fixed relative to the position of the exciter 8. A plurality of first ribs 14 are arranged between the first annular plate 12 and the second annular plate 13, and the plurality of first ribs 14 are uniformly distributed in the circumferential direction. The first connecting plate 11 is arranged at the lower part of the first annular plate 12, and the diameter of the first connecting plate 11 is smaller than the diameter of the second annular plate 13. The diameter of the first annular plate 12 is such that a plurality of second ribs 15 are provided between the second annular plate 13 and the first connecting plate 11. The first annular plate 12, the first connecting plate 11 and two adjacent second ribs 15 form a hole for the connecting column 22 to pass through, that is, the "hole for the inner bracket 2 to pass through for reciprocating motion" mentioned above. The connection between the second rib 15 and the first connecting plate 11 is in an arc shape to enhance the structural strength. The first rib 14 and the second rib 15 correspond one to one in the radial direction, and the corresponding first rib 14 is connected to the second rib 15 and the connection is in an arc shape to enhance the structural strength.

[0038] As an embodiment of the present utility model, Figure 2 , 5 As shown, a plurality of connecting columns 22 on the inner bracket 2 are evenly distributed circumferentially, the connecting columns 22 are located between two adjacent second ribs 15 and pass through and extend out of the second ribs 15 , and the bottom surface of the air spring 4 is connected to the top surface of the second connecting plate 21 .

[0039] As an embodiment of the present utility model, Figure 4 , 6As shown, the flexible sealing structure 5 includes a first pressure ring 51, a second pressure ring 52, a third pressure ring 53, a fourth pressure ring 54 and a flexible sealing membrane 55, the first pressure ring 51 is arranged on the outer bracket 1, the second pressure ring 52 is pressed on the first pressure ring 51, the third pressure ring 53 is arranged on the lower inner wall of the test box 7, the fourth pressure ring 54 is pressed on the third pressure ring 53, one end of the flexible sealing membrane 55 is arranged between the first pressure ring 51 and the second pressure ring 52 and is pressed by the first pressure ring 51 and the second pressure ring 52, and the other end of the flexible sealing membrane 55 is arranged between the third pressure ring 53 and the fourth pressure ring 54 and is pressed by the third pressure ring 53 and the fourth pressure ring 54. The first pressure ring 51 and the second pressure ring 52 are tightly connected, and the third pressure ring 53 and the fourth pressure ring 54 are tightly connected. The first pressure ring 51 is tightly connected to the outer bracket 1, and the third pressure ring 53 is tightly connected to the test box 7, which reduces the influence of the vibration transmitted from the output end of the exciter 8 to the adapter on the test box 7. At the same time, due to the presence of a certain gap between the first pressure ring 51 and the third pressure ring 53, the relative position accuracy requirement between the exciter 8 and the test box 7 is reduced.

[0040] A first annular groove is provided on the bottom surface of the second pressure ring 52, and the flexible sealing membrane 55 includes a first connecting end 56, a membrane body 57 and a second connecting end 58 connected in sequence, the first connecting end 56 is provided in the first annular groove, a second annular groove is provided on the bottom surface of the fourth pressure ring 54, and the second connecting end 58 is provided in the second annular groove; in the direction of the first annular groove away from the membrane body 57, the height of the first annular groove gradually increases, thereby preventing the first connecting end 56 from sliding out of the first annular groove or falling off, and strengthening the connection between the first connecting end 56 and the first annular groove; the structure of the second annular groove is consistent with that of the first annular groove. Specifically, the flexible sealing membrane 55 is a high-strength elastic sealing membrane.

[0041] As an embodiment of the present utility model, Figure 4 , 5As shown, the rolling seal 6 is a folded sealing membrane, one end of which is fixed on the adapter plate 3, and the other end of which is fixed on the outer bracket 1. Specifically, the rolling seal 6 can be a sealing membrane with a U-shaped cross section, and the U-shaped opening of the sealing membrane faces downward. Further, the rolling seal 6 includes a third connecting end 61, a folding portion 62, a flattening portion 63 and a fourth connecting end 64 connected in sequence, the folding portion 62 is arranged between the adapter plate 3 and the first pressing ring 51 and is held by the adapter plate 3 and the first pressing ring 51, the folding portion 62 is U-shaped and the U-shaped opening faces downward, the flattening portion 63 is arranged between the first pressing ring 51 and the outer bracket 1 and is pressed by the first pressing ring 51 and the outer bracket 1, the third connecting end 61 is fixed on the adapter plate 3, and the fourth connecting end 64 is fixed on the outer bracket 1. The rolling seal 6 reduces the gap between the adapter plate 3, the first pressure ring 51 and the outer bracket 1, reduces the pressure difference borne by the rolling seal 6 itself, isolates the internal and external spaces of the test box 7, and reduces the impact of the vibration transmitted from the output end of the exciter 8 to the adapter on the test box 7.

[0042] A third annular groove is provided on the outer wall of the adapter plate 3, and the third connecting end 61 is provided in the third annular groove. A fourth annular groove is provided on the top surface of the outer bracket 1, and the fourth connecting end 64 is provided in the fourth annular groove. In the groove depth direction of the third annular groove, the groove width gradually increases, that is, the groove opening width of the third annular groove is smaller than the groove bottom width of the third annular groove, thereby preventing the third connecting end 61 from slipping out or falling off from the third annular groove, and strengthening the connection between the third connecting end 61 and the third annular groove. The structure of the fourth annular groove is consistent with that of the third annular groove.

[0043] Based on the above self-balancing seal adapter assembly, the utility model also provides a comprehensive test device, such as Figure 3 , 7 As shown, the comprehensive test device includes an exciter 8, a test box 7 and the self-balancing seal adapter assembly as described above, wherein the self-balancing seal adapter assembly is arranged between the exciter 8 and the test box 7, and a vibration platform is connected to the adapter plate 3 of the self-balancing seal adapter assembly, and the vibration platform is used to install the test piece. At the same time, a controllable pressure component, temperature component and humidity component are arranged in the test box 7, and the pressure component, temperature component and humidity component are used to cooperate with the exciter 8 to perform four comprehensive environmental and vibration tests, and the pressure component, temperature component and humidity component are used to adjust the pressure, temperature and humidity in the test box 7.

[0044] As an embodiment of the utility model, a mounting hole 71 is provided at the bottom of the test box 7, the self-balancing seal adapter assembly extends into the mounting hole 71 and is connected to the test box 7 through the mounting hole 71. Specifically, an annular mounting groove 72 coaxial with the mounting hole 71 is provided at the bottom of the test box 7, and the third pressure ring 53 is arranged in the annular mounting groove 72. Further, an annular sealing ring 73 is provided between the third pressure ring 53 and the annular mounting groove 72, and the annular sealing ring 73 is used to seal the third pressure ring 53 with the bottom surface of the mounting groove, thereby sealing the third pressure ring 53 with the test box 7, thereby improving the sealing between the self-balancing seal adapter assembly and the test box 7 and ensuring the accuracy of the test.

[0045] The self-balancing sealing adapter assembly and the comprehensive testing device provided by the utility model can adjust the air spring 4 through the above structure to achieve the balance of the air pressure in the test box 7, and have good supporting force; the flexible sealing structure 5 is provided to achieve the sealing between the test box 7 and the outer bracket 1, and the rolling seal 6 is provided to achieve the sealing between the adapter plate 3 and the outer bracket 1, which is suitable for conventional vibration tables and reduces the specification requirements for the test box 7 and the vibration table.

[0046] It should be understood that although this specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation mode may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0047] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the utility model. They are not intended to limit the protection scope of the utility model. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A self-balancing sealed adapter assembly, arranged between a test box (7) and a vibrator (8), for transmitting the vibration force of the vibrator (8) to the test box (7), characterized in that: The invention comprises an outer bracket (1), an inner bracket (2) and an adapter plate (3), wherein the outer bracket (1) is arranged on a housing of an exciter (8), the inner bracket (2) is connected to the output end of the exciter (8), the inner bracket (2) is arranged inside the outer bracket (1), a hole is arranged on the outer bracket (1) for the inner bracket to pass through and perform reciprocating motion, the adapter plate (3) is arranged on the top of the inner bracket (2), a balancing support is arranged between the outer bracket (1) and the inner bracket (2), and the balancing support is used to balance the pressure inside and outside the test box (7); a flexible sealing structure (5) for sealing is arranged between the outer bracket (1) and the test box (7); and a rolling seal (6) for sealing is arranged between the outer bracket (1) and the adapter plate (3).

2. The self-balancing seal adapter assembly according to claim 1, characterized in that: The balancing support member is an air spring (4), a first connecting plate (11) is arranged in the middle of the outer bracket (1), the inner bracket (2) comprises a second connecting plate (21) and a plurality of connecting columns (22) arranged on the second connecting plate (21), the second connecting plate (21) is connected to the output end of the exciter (8), the connecting columns (22) are connected to the adapter plate (3), the second connecting plate (21) is located below the first connecting plate (11), the top surface of the air spring (4) is connected to the first connecting plate (11), and the bottom surface of the air spring (4) is connected to the second connecting plate (21).

3. The self-balancing seal adapter assembly according to claim 2, characterized in that: The outer bracket (1) comprises a first annular plate (12) and a second annular plate (13) which are coaxially arranged, the diameter of the first annular plate (12) being smaller than the diameter of the second annular plate (13), the second annular plate (13) being fixedly mounted on the housing of the vibrator (8), and a plurality of first ribs (14) being arranged between the first annular plate (12) and the second annular plate (13); the first connecting plate (11) being arranged at the lower part of the first annular plate (12), the diameter of the first connecting plate (11) being smaller than the diameter of the first annular plate (12), and a plurality of second ribs (15) being arranged between the second annular plate (13) and the first connecting plate (11), and the first annular plate (12), the first connecting plate (11) and the two adjacent second ribs (15) forming a hole for the connecting column (22) to pass through.

4. The self-balancing seal adapter assembly according to claim 1, characterized in that: The flexible sealing structure (5) comprises a first pressure ring (51), a second pressure ring (52), a third pressure ring (53), a fourth pressure ring (54) and a flexible sealing membrane (55); the first pressure ring (51) is arranged on the outer bracket (1); the second pressure ring (52) is pressed on the first pressure ring (51); the third pressure ring (53) is arranged on the test box (7); the fourth pressure ring (54) is pressed on the third pressure ring (53); one end of the flexible sealing membrane (55) is arranged between the first pressure ring (51) and the second pressure ring (52) and is pressed by the first pressure ring (51) and the second pressure ring (52); the other end of the flexible sealing membrane (55) is arranged between the third pressure ring (53) and the fourth pressure ring (54) and is pressed by the third pressure ring (53) and the fourth pressure ring (54).

5. The self-balancing seal adapter assembly according to claim 4, characterized in that: A first annular groove is arranged on the bottom surface of the second pressure ring (52), and the flexible sealing membrane (55) includes a first connecting end (56), a membrane body (57) and a second connecting end (58) connected in sequence, the first connecting end (56) is arranged in the first annular groove, and a second annular groove is arranged on the bottom surface of the fourth pressure ring (54), and the second connecting end (58) is arranged in the second annular groove; in the direction of the first annular groove away from the membrane body (57), the height of the first annular groove gradually increases.

6. The self-balancing seal adapter assembly according to claim 4, characterized in that: The rolling seal (6) is a folded sealing membrane. One end of the rolling seal (6) is fixed on the adapter plate (3), and the other end of the rolling seal (6) is fixed on the outer bracket (1).

7. The self-balancing seal adapter assembly according to claim 6, characterized in that: The rolling seal (6) comprises a third connecting end (61), a folding portion (62), a flat portion (63) and a fourth connecting end (64) which are connected in sequence; the folding portion (62) is arranged between the adapter plate (3) and the first pressure ring (51) and is pressed against by the adapter plate (3) and the first pressure ring (51); the folding portion (62) is U-shaped and the U-shaped opening faces downward; the flat portion (63) is arranged between the first pressure ring (51) and the outer bracket (1) and is pressed against by the first pressure ring (51) and the outer bracket (1); the third connecting end (61) is fixed on the adapter plate (3); and the fourth connecting end (64) is fixed on the outer bracket (1).

8. A comprehensive test device, characterized in that: The invention comprises an exciter (8), a test box (7) and a self-balancing sealing adapter assembly as claimed in any one of claims 4 to 7, wherein a mounting hole (71) is arranged at the bottom of the test box (7), the self-balancing sealing adapter assembly extends into the mounting hole (71) and is connected to the test box (7) through the mounting hole (71), a vibration platform is connected to the adapter plate (3), the vibration platform is used to install a test piece, and a controllable pressure component, temperature component and humidity component are arranged in the test box (7), and the pressure component, temperature component and humidity component are used to adjust the pressure, temperature and humidity in the test box (7).

9. The comprehensive test device according to claim 8, characterized in that: An annular mounting groove (72) is provided at the bottom of the test box (7), and the third pressure ring (53) is arranged in the annular mounting groove (72).

10. The comprehensive test device according to claim 9, characterized in that: An annular sealing ring (73) is provided between the third pressure ring (53) and the annular mounting groove (72).

Images