Complicated box sealing detection clamp

Abstract

The utility model relates to box water detection technical field, concretely relates to a complex box seal detection clamp, including the second oil cavity seal assembly for the second oil cavity seal in the box, the second oil cavity seal assembly includes top cone plug, cone plug top bolt, exposed hole plug and bottom oil channel plugging piece, through the structure optimization complex box seal detection clamp, utilize the top cone plug to block the top of first oil cavity, utilize the reliable extrusion top cone plug of cone plug top bolt and box connection can guarantee the reliable block, utilize bottom oil channel plugging piece and the bottom of first oil cavity is sealed to box connection, and utilize exposed hole plug to block the exposed hole of box outside, realize the seal to first oil cavity, simple structure, convenient operation, guarantee sealed stable reliable simultaneously, satisfy actual water detection seal demand, improve water detection seal efficiency.

Description

Technical Field

[0001] This utility model relates to the field of water testing technology for enclosures, specifically to a complex enclosure sealing testing fixture. Background Technology

[0002] Watertightness testing of shell-type workpieces is a core step in ensuring product reliability. For complex shells with multiple nested oil cavities and distributed porous systems, the internal flow channels present multiple paths. Traditional tooling systems, lacking modular positioning design, are prone to spatial interference. In particular, for channels with irregular geometric features at the ports, conventional end-face compression sealing and radial elastic sealing solutions cannot achieve effective sealing, leading to process challenges such as clamping instability and sealing failure during testing, which directly affects the accuracy of the test results.

[0003] The NRT34 front enclosure is characterized by multiple oil chambers, complex chamber structure, and irregular end faces of special holes. This makes it difficult to seal and plug the enclosure during water testing, increasing the difficulty of water testing, reducing water testing efficiency, and also causing poor sealing effect, resulting in low reliability of water testing results, which cannot meet actual water testing requirements. Utility Model Content

[0004] The purpose of this utility model is to provide a complex enclosure sealing test fixture to solve the technical problem of the difficulty in sealing complex enclosures with water, especially for the water sealing of the front enclosure of NRT34.

[0005] The solution of this utility model to the above-mentioned technical problems is as follows:

[0006] A complex housing seal testing fixture includes a second oil cavity sealing assembly for sealing a second oil cavity in the housing. The second oil cavity sealing assembly includes a top cone plug, a cone plug tightening bolt, an exposed hole plug, and a bottom oil passage sealing component.

[0007] The bottom of the cone plug tightening bolt contacts the top of the top cone plug. The outer surface of the top cone plug is a cone surface. The bottom oil passage sealing component and the top cone plug are respectively located at the upper and lower ends of the second oil chamber. The cone plug tightening bolt and the bottom oil passage sealing component are detachably connected to the housing. The exposed hole plug is used for sealing connection with the exposed hole communicating with the second oil chamber.

[0008] Further specified, the number of top cone plugs and the number of cone plug tightening bolts are both multiple and equal, the multiple top cone plugs correspond one-to-one with the inner hole at the top of the second oil chamber, the top cone plugs are disposed between the cone plug tightening bolts and the corresponding inner holes, and the cone plug tightening bolts are detachably connected to the housing by threads.

[0009] Further specified, the cone plug tightening bolt is detachably connected to the top of the housing via a top mating plate; the top mating plate is connected to the top of the housing via connecting bolts, the top of the cone plug tightening bolt is located above the top mating plate, the bottom of the cone plug tightening bolt passes through the top mating plate and contacts the top of the top cone plug, and the cone plug tightening bolt is threadedly connected to the top mating plate.

[0010] Further specified, the bottom end of the bottom oil passage sealing component is detachably connected to the bottom of the housing via a bottom mating plate; the bottom mating plate of the housing has an L-shaped structure, one end of the bottom mating plate of the housing is connected to the bottom of the housing via a connecting bolt, the other end of the bottom mating plate of the housing extends to the bottom of the bottom oil passage sealing component, a sealing tightening bolt is provided on the bottom mating plate of the housing, the bottom of the sealing tightening bolt is located below the bottom mating plate of the housing, and the top of the sealing tightening bolt passes through the bottom mating plate of the housing and contacts the bottom end of the bottom oil passage sealing component;

[0011] The bottom oil passage sealing component is internally connected to the second oil chamber. An air pipe connector is provided on the bottom oil passage sealing component, and the air pipe connector is internally connected to the bottom oil passage sealing component. The top of the bottom oil passage sealing component is sealed to the orifice at the bottom of the second oil chamber through a sealing gasket.

[0012] Further specifying, the exposed hole plug includes a first expansion plug and a second expansion plug, both of which are sealed to the exposed hole.

[0013] Furthermore, the complex housing sealing test fixture also includes a first oil cavity sealing assembly for sealing the first oil cavity in the housing. The first oil cavity includes a first oil passage and a second oil passage, and the bottom of the first oil passage and the bottom of the second oil passage are both connected to the inside of the housing.

[0014] The first oil cavity sealing assembly includes a first oil passage blocking plate, a second oil passage blocking plate, a first oil passage blocking component, and a second oil passage blocking component. The first oil passage blocking plate is sealed to the top of the first oil passage, the second oil passage blocking plate is sealed to the top of the second oil passage, the first oil passage blocking component is disposed at the bottom of the inner cavity of the first oil passage, and the second oil passage blocking component is sealed to the bottom of the second oil passage.

[0015] Further specified, the first oil passage sealing plate is provided with an air pipe connector, and the air pipe connector is connected to the inner cavity of the first oil passage;

[0016] The first oil passage sealing component includes a radial sealing block, an O-ring, and a disassembly handle. The O-ring is sleeved on the outside of the radial sealing block, and the radial sealing block is sealed to the bottom of the first oil passage cavity through the O-ring. The disassembly handle is located in the first oil passage cavity and is threadedly connected to the radial sealing block.

[0017] The second oil passage sealing component includes a clamping component, a sealing screw, and a second oil passage bottom sealing component. The clamping component is located at the bottom of the inner cavity of the second oil passage, and the second oil passage bottom sealing component is located at the bottom of the outer side of the second oil passage. The sealing screw is connected between the clamping component and the second oil passage bottom sealing component.

[0018] Furthermore, the complex box sealing test fixture also includes a large cavity sealing assembly for the sealed box, the large cavity sealing assembly including a large cavity top sealing plate, a box bottom sealing plate and a third oil passage sealing component;

[0019] The large cavity top sealing plate is sealed to the top of the box body, the box body bottom sealing plate is sealed to the bottom of the box body, and the third oil passage sealing component is sealed to the top of the third oil passage.

[0020] Further defined, the third oil passage sealing component includes a third oil passage top sealing plate, a third oil passage limiting plate, and a third oil passage connecting bolt. The third oil passage limiting plate is disposed in the inner cavity of the third oil passage and engages with the third oil passage. The third oil passage top sealing plate is disposed at the top of the third oil passage. The third oil passage connecting bolt is connected between the third oil passage top sealing plate and the third oil passage limiting plate. A communication channel is reserved between the third oil passage limiting plate and the inner wall of the third oil passage, and the third oil passage communicates with the inside of the housing through the communication channel.

[0021] Further defined, the exposed hole plug includes a first expansion plug, a second expansion plug, and a third expansion plug, all of which are sealed to the exposed hole.

[0022] The beneficial effects of this utility model are as follows:

[0023] 1. This utility model optimizes the structure of a complex box-type sealing test fixture. It uses a top conical plug to seal the top of the first oil chamber, and the top conical plug is reliably connected to the box by a tightening bolt to ensure reliable sealing. The bottom oil passage sealing component is connected to the box to seal the bottom of the first oil chamber, and the exposed hole plug is used to seal the exposed hole outside the box, thus achieving a seal for the first oil chamber. The structure is simple and easy to operate, while ensuring stable and reliable sealing, meeting the actual water testing sealing requirements, and improving the water testing sealing efficiency.

[0024] 2. This utility model seals the top of the first oil cavity with a first oil passage sealing plate and a second oil passage sealing plate, and seals the bottom of the first oil cavity with the first oil passage sealing component and the second oil passage sealing component, thereby completing the sealing of the first oil cavity and achieving individual water inspection sealing of the first oil cavity, avoiding water inspection interference from other parts of the housing; at the same time, according to the structure of the first oil cavity, a radial sealing block is used to seal the inner cavity of the first oil passage, reducing the difficulty of sealing the irregular bottom.

[0025] 3. This utility model uses a third oil passage top sealing plate, a third oil passage limiting plate, a third oil passage connecting bolt, a first oil passage sealing plate, a second oil passage sealing plate, and an exposed hole plug to seal the entire box body for water testing. At the same time, it is equipped with a first oil cavity sealing assembly to increase the reuse of parts, reduce the difficulty of sealing operation, and improve the water testing sealing efficiency of the box body. Attached Figure Description

[0026] Figure 1 This is a diagram showing the upper state of the complex box sealing test fixture in Embodiment 1 of this utility model.

[0027] Figure 2 This is a bottom view of the complex box sealing test fixture in Embodiment 1 of this utility model.

[0028] Figure 3 This is a diagram showing the usage status of the complex box sealing test fixture in Embodiment 2 of this utility model;

[0029] Figure 4 The left-side view shows the complex box sealing test fixture used in Embodiment 3 of this utility model.

[0030] Figure 5 The right-hand view shows the usage of the complex box sealing test fixture in Embodiment 3 of this utility model;

[0031] In the figure, 10-Second oil chamber sealing assembly; 11-Top cone plug; 12-Cone plug tightening bolt; 13-Bottom oil passage plug; 14-Top mating plate of the housing; 15-Bottom mating plate of the housing; 16-Plug tightening bolt; 17-Sealing gasket; 20-Exposed hole plug; 21-First expansion plug; 22-Second expansion plug; 23-Third expansion plug; 30-Gas pipe connector; 40-First oil chamber sealing assembly; 41 42-First oil passage sealing plate; 43-Second oil passage sealing plate; 44-Radial sealing block; 45-O-ring; 46-Removal handle; 47-Clamping component; 48-Sealing screw; 59-Second oil passage bottom sealing component; 50-Large cavity sealing assembly; 51-Large cavity top sealing plate; 52-Box bottom sealing plate; 53-Third oil passage top sealing plate; 54-Third oil passage limiting plate; 55-Third oil passage connecting bolt; 60-Sealed box. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0034] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0035] In the description of the embodiments of this utility model, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the utility model. Furthermore, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0036] Example 1

[0037] refer to Figure 1 and Figure 2 This utility model provides a complex box sealing test fixture, including a second oil cavity sealing assembly 10 for sealing the second oil cavity in the box 60. The second oil cavity sealing assembly 10 includes a top cone plug 11, a cone plug tightening bolt 12, an exposed hole plug 20, and a bottom oil passage plug 13.

[0038] The outer surface of the top cone plug 11 is a cone. When in use, the top cone plug 11 is inserted into the top of the inner hole in the second oil chamber. The top cone plug 11 is tightened by the cone plug tightening bolt 12. The top cone plug 11 contacts the top orifice of the second oil chamber through the cone surface. Under the axial pressure of the cone plug tightening bolt 12, it expands radially to form a uniform circumferential seal, ensuring the sealing connection of the top of the second oil chamber. Then, the bottom oil passage sealing member 13 is used to seal the bottom of the second oil chamber.

[0039] At the same time, the external hole connected to the second oil chamber is sealed by the external hole plug 20. At this time, the external hole plug 20 includes a first expansion plug 21 and a second expansion plug 22. Both the first expansion plug 21 and the second expansion plug 22 are sealed to the external hole to achieve overall sealing of the second oil chamber.

[0040] Specifically, the top of the second oil chamber has multiple inner holes, so there are multiple top cone plugs 11. Each top cone plug 11 blocks one inner hole of the second oil chamber, and there are also multiple cone plug tightening bolts 12. Each cone plug tightening bolt 12 is used to squeeze the corresponding top cone plug 11 to keep the inner hole of the second oil chamber sealed.

[0041] Preferably, the cone plug tightening bolt 12 is detachably connected to the top of the housing 60 via the housing top mating plate 14. The housing top mating plate 14 is a detachable support structure independent of the housing 60. The housing top mating plate 14 is connected to the top of the housing 60 via connecting bolts. The top of the cone plug tightening bolt 12 is located above the housing top mating plate 14, and the bottom of the cone plug tightening bolt 12 passes through the housing top mating plate 14 and contacts the top of the top cone plug 11. The cone plug tightening bolt 12 is threadedly connected to the housing top mating plate 14. During operation, the cone plug tightening bolt 12 and the housing top mating plate 14 can cooperate to tighten the top cone plug 11 while maintaining a reliable seal. It is also convenient to disassemble and assemble, and the operation is simple.

[0042] The bottom end of the bottom oil passage sealing component 13 is detachably connected to the bottom of the housing 60 via the bottom mating plate 15 of the housing body. The bottom mating plate 15 of the housing body has an L-shaped structure. One end of the bottom mating plate 15 of the housing body is connected to the bottom of the housing 60 via a connecting bolt. The other end of the bottom mating plate 15 of the housing body extends to the bottom of the bottom oil passage sealing component 13. A sealing and tightening bolt 16 is provided on the bottom mating plate 15 of the housing body. The bottom of the sealing and tightening bolt 16 is located below the bottom mating plate 15 of the housing body. The top of the sealing and tightening bolt 16 passes through the bottom mating plate 15 of the housing body and contacts the bottom end of the bottom oil passage sealing component 13 to keep the sealing and tightening bolt 16 and the second oil chamber.

[0043] Preferably, the top of the bottom oil passage plug 13 is sealed to the orifice at the bottom of the second oil chamber by a sealing gasket 17.

[0044] The bottom oil passage sealing component 13 is connected to the second oil chamber. The bottom oil passage sealing component 13 is equipped with an air pipe connector 30, which is connected to the inside of the bottom oil passage sealing component 13. During testing, the air pipe connector 30 is connected to an air source to inflate the second oil chamber and perform a sealing test.

[0045] Example 2

[0046] refer to Figure 3 This embodiment provides a complex housing seal testing fixture, including a first oil cavity sealing assembly 40 for sealing the first oil cavity in the housing 60.

[0047] The first oil chamber includes a first oil passage and a second oil passage. The bottom of the first oil passage and the bottom of the second oil passage are both connected to the interior of the housing 60, and the first oil passage is connected to the second oil passage. The bottom opening of the first oil passage has an irregular shape.

[0048] The first oil cavity sealing assembly 40 includes a first oil passage blocking plate 41, a second oil passage blocking plate 42, a first oil passage blocking component, and a second oil passage blocking component. The first oil passage blocking plate 41 is sealed to the top of the first oil passage, the second oil passage blocking plate 42 is sealed to the top of the second oil passage, the first oil passage blocking component is disposed at the bottom of the inner cavity of the first oil passage for sealing the bottom of the first oil passage, and the second oil passage blocking component is sealed to the bottom of the second oil passage.

[0049] Preferably, after setting a sealing ring between the first oil passage sealing plate 41 and the top port of the first oil passage, the first oil passage and the first oil passage sealing plate 41 are fastened together by hexagonal head screws to ensure reliable sealing. Similarly, after setting a sealing ring between the second oil passage sealing plate 42 and the top port of the second oil passage, the second oil passage and the second oil passage sealing plate 42 are fastened together by hexagonal head screws. At the same time, the second oil passage sealing plate 42 can be pressed with a bow-shaped clamp to further ensure the reliability of sealing.

[0050] Specifically, the first oil passage sealing component includes a radial sealing block 43, an O-ring 44, and a disassembly handle 45. The O-ring 44 is sleeved on the outside of the radial sealing block 43. During operation, the radial sealing block 43 with the O-ring 44 sleeved on it is inserted into the bottom of the inner cavity of the first oil passage to seal the bottom opening of the first oil passage from above. In order to facilitate the removal or reliable insertion of the radial sealing block 43, a disassembly handle 45 is provided on the top of the radial sealing block 43. The disassembly handle 45 is preferably threaded to the radial sealing block 43 for easy disassembly and assembly. The top of the disassembly handle 45 is located below the first oil passage sealing plate 41 to ensure the sealing reliability of the first oil passage sealing plate 41.

[0051] The second oil passage sealing component includes a clamping component 46, a sealing screw 47, and a second oil passage bottom sealing component 48. The clamping component 46 is located at the bottom of the inner cavity of the second oil passage, and the second oil passage bottom sealing component 48 is placed at the bottom of the outer side of the second oil passage from below the housing 60. The sealing screw 47 is connected between the clamping component 46 and the second oil passage bottom sealing component 48 to achieve the sealing of the second oil passage orifice.

[0052] Preferably, a nylon gasket is provided between the bottom of the clamping member 46 and the bottom of the inner cavity of the second oil passage, and a sealing gasket is provided between the bottom sealing member 48 of the second oil passage and the bottom of the outer side of the second oil passage to increase the sealing effect on the opening of the second oil passage.

[0053] The first oil passage sealing plate 41 is equipped with an air pipe connector 30, which is connected to the inner cavity of the first oil passage. During the air tightness test, the air pipe connector 30 is connected to an air source to inflate the first oil cavity, thereby enabling a separate sealing test of the first oil cavity.

[0054] Example 3

[0055] refer to Figure 4 and Figure 5 Based on Embodiments 1 and 2, this embodiment provides a complex box sealing test fixture, which also includes a large cavity sealing assembly 50 in the sealing box 60. The large cavity sealing assembly 50 includes a large cavity top sealing plate 51, a box bottom sealing plate 52 and a third oil passage sealing component.

[0056] The top sealing plate 51 of the large cavity is sealed to the top of the housing 60, the bottom sealing plate 52 of the housing is sealed to the bottom of the housing 60, and the third oil passage sealing component is sealed to the top of the third oil passage. At the same time, the exposed hole plug 20 is used to seal the exposed hole on the housing 60, and the first oil passage sealing plate 41 and the second oil passage sealing plate 42 are used to seal the second oil cavity, thereby realizing the overall sealing test of the inside of the housing 60.

[0057] Specifically, since the top port of the third oil passage does not have the original connection hole, the third oil passage sealing component includes a third oil passage top sealing plate 53, a third oil passage limiting plate 54, and a third oil passage connecting bolt 55.

[0058] The third oil passage limiting plate 54 is installed in the inner cavity of the third oil passage and engages with the inner cavity of the third oil passage. A communication channel is reserved between the third oil passage limiting plate 54 and the inner wall of the third oil passage. The third oil passage is connected to the inside of the housing 60 through the communication channel to avoid blocking the third oil passage. The third oil passage top sealing plate 53 is installed at the top of the third oil passage. The third oil passage connecting bolt 55 is connected between the third oil passage top sealing plate 53 and the third oil passage limiting plate 54. The third oil passage limiting plate 54 is engaged with the inner cavity of the third oil passage. The third oil passage connecting bolt 55 is used to tighten the third oil passage top sealing plate 53 to ensure the seal with the top port of the third oil passage.

[0059] Preferably, a sealing gasket is provided between the top sealing plate 53 of the third oil passage and the top port of the third oil passage to improve the sealing effect; similarly, the top sealing plate 51 of the large cavity is sealed to the top of the box 60 through the top plate sealing gasket, and the bottom sealing plate 52 of the box is sealed to the bottom of the box 60 through the bottom plate sealing gasket.

[0060] After the connection is completed, the air source is filled with air through the air pipe joint 30 on the first oil passage sealing plate 41 to test the airtightness of the entire inner cavity of the box 60.

[0061] When air leakage is present, the air tightness of the first oil chamber and the second oil chamber can be tested separately to further determine the oil chamber where the defect is located, thereby further improving the efficiency of air tightness testing.

[0062] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0063] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that can be understood by those skilled in the art. The above content is only for illustrating the technical concept of this utility model and should not be used to limit the scope of protection of this utility model. Any modifications made to the technical solutions based on the technical concept proposed by this utility model shall fall within the scope of protection of the claims of this utility model.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A complex enclosure sealing test fixture, characterized in that, Includes a second oil chamber sealing assembly (10) for sealing a second oil chamber in the housing (60), the second oil chamber sealing assembly (10) including a top cone plug (11), a cone plug tightening bolt (12), an exposed hole plug (20) and a bottom oil passage plug (13); The bottom of the cone plug tightening bolt (12) contacts the top of the top cone plug (11). The outer surface of the top cone plug (11) is a cone. The bottom oil passage sealing component (13) and the top cone plug (11) are respectively located at the upper and lower ends of the second oil chamber. The cone plug tightening bolt (12) and the bottom oil passage sealing component (13) are both detachably connected to the housing (60). The exposed hole plug (20) is used for sealing the exposed hole that communicates with the second oil chamber.

2. The complex enclosure sealing test fixture according to claim 1, characterized in that, The number of top cone plugs (11) and the number of cone plug tightening bolts (12) are both multiple and equal. The multiple top cone plugs (11) correspond one-to-one with the inner hole at the top of the second oil chamber. The top cone plugs (11) are set between the cone plug tightening bolts (12) and the corresponding inner holes. The cone plug tightening bolts (12) are threadedly disassembled and connected to the housing (60).

3. The complex enclosure sealing test fixture according to claim 2, characterized in that, The cone plug tightening bolt (12) is detachably connected to the top of the box (60) through the box top mating plate (14); the box top mating plate (14) is connected to the top of the box (60) through connecting bolts, the top of the cone plug tightening bolt (12) is located above the box top mating plate (14), the bottom of the cone plug tightening bolt (12) passes through the box top mating plate (14) and contacts the top of the top cone plug (11), and the cone plug tightening bolt (12) is threadedly connected to the box top mating plate (14).

4. The complex enclosure sealing test fixture according to claim 3, characterized in that, The bottom end of the bottom oil passage sealing component (13) is detachably connected to the bottom of the box (60) through the bottom mating plate (15) of the box body; the bottom mating plate (15) of the box body is an L-shaped structure, one end of the bottom mating plate (15) of the box body is connected to the bottom of the box body (60) through the connecting bolt, and the other end of the bottom mating plate (15) of the box body extends to the bottom of the bottom oil passage sealing component (13). A sealing and tightening bolt (16) is provided on the bottom mating plate (15) of the box body. The bottom of the sealing and tightening bolt (16) is located below the bottom mating plate (15) of the box body, and the top of the sealing and tightening bolt (16) passes through the bottom mating plate (15) of the box body and contacts the bottom end of the bottom oil passage sealing component (13). The bottom oil passage sealing component (13) is connected to the second oil chamber. A gas pipe connector (30) is provided on the bottom oil passage sealing component (13), and the gas pipe connector (30) is connected to the inside of the bottom oil passage sealing component (13). The top of the bottom oil passage sealing component (13) is sealed to the orifice at the bottom of the second oil chamber through a sealing gasket (17).

5. The complex enclosure sealing test fixture according to claim 1, characterized in that, The exposed hole plug (20) includes a first expansion plug (21) and a second expansion plug (22), both of which are sealed to the exposed hole.

6. The complex enclosure sealing test fixture according to claim 1, characterized in that, The complex box sealing test fixture also includes a first oil cavity sealing assembly (40) for sealing the first oil cavity in the box (60). The first oil cavity includes a first oil passage and a second oil passage. The bottom of the first oil passage and the bottom of the second oil passage are both connected to the inside of the box (60). The first oil cavity sealing assembly (40) includes a first oil passage blocking plate (41), a second oil passage blocking plate (42), a first oil passage blocking component, and a second oil passage blocking component. The first oil passage blocking plate (41) is sealed to the top of the first oil passage, and the second oil passage blocking plate (42) is sealed to the top of the second oil passage. The first oil passage blocking component is disposed at the bottom of the inner cavity of the first oil passage, and the second oil passage blocking component is sealed to the bottom of the second oil passage.

7. The complex enclosure sealing test fixture according to claim 6, characterized in that, The first oil passage sealing plate (41) is provided with a gas pipe connector (30), which is connected to the inner cavity of the first oil passage; The first oil passage sealing component includes a radial sealing block (43), an O-ring (44), and a disassembly handle (45). The O-ring (44) is sleeved on the outside of the radial sealing block (43), and the radial sealing block (43) is sealed to the bottom of the first oil passage cavity through the O-ring (44). The disassembly handle (45) is located in the first oil passage cavity and is threadedly connected to the radial sealing block (43). The second oil passage sealing component includes a clamping component (46), a sealing screw (47), and a second oil passage bottom sealing component (48). The clamping component (46) is located at the bottom of the inner cavity of the second oil passage, and the second oil passage bottom sealing component (48) is located at the bottom of the outer side of the second oil passage. The sealing screw (47) is connected between the clamping component (46) and the second oil passage bottom sealing component (48).

8. The complex enclosure sealing test fixture according to claim 6, characterized in that, The complex box sealing test fixture also includes a large cavity sealing assembly (50) in the sealing box (60), the large cavity sealing assembly (50) includes a large cavity top sealing plate (51), a box bottom sealing plate (52) and a third oil passage sealing component; The large cavity top sealing plate (51) is sealed to the top of the box body (60), the box body bottom sealing plate (52) is sealed to the bottom of the box body (60), and the third oil passage sealing component is sealed to the top of the third oil passage.

9. The complex enclosure sealing test fixture according to claim 8, characterized in that, The third oil passage sealing component includes a third oil passage top sealing plate (53), a third oil passage limiting plate (54), and a third oil passage connecting bolt (55). The third oil passage limiting plate (54) is disposed in the inner cavity of the third oil passage and is engaged with the third oil passage. The third oil passage top sealing plate (53) is disposed at the top of the third oil passage. The third oil passage connecting bolt (55) is connected between the third oil passage top sealing plate (53) and the third oil passage limiting plate (54). A communication channel is reserved between the third oil passage limiting plate (54) and the inner wall of the third oil passage. The third oil passage is connected to the inside of the housing (60) through the communication channel.

10. The complex enclosure sealing test fixture according to claim 9, characterized in that, The exposed hole plug (20) includes a first expansion plug (21), a second expansion plug (22) and a third expansion plug (23), all of which are sealed to the exposed hole.

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