Exhaust and pressure reduction structural member of camera

Abstract

The utility model discloses an exhaust and pressure reduction structural member of a camera. The exhaust and pressure reduction structural member comprises a first connecting piece, a reset piece arranged in the first connecting piece, and a movable sealing piece used for sealing the first connecting piece, a first groove is formed in one end of the first connecting piece, a first hole is formed in the inner end face of the first groove, and the reset piece is arranged in the first groove. According to the utility model, the detachable exhausting and pressure reducing structure is arranged on the shell of the camera, so that pressure reduction and exhausting in the camera are realized, an expensive polymer breathable film (such as CN211718676U) does not need to be purchased, and a complex labyrinth type gas circulation channel (such as CN210605312U) does not need to be arranged on the shell, so that the waterproof and breathable effects can be realized; the production cost of the camera is effectively reduced, the production process of the camera shell is optimized, the camera shell can be connected in a threaded connection mode, and the effects of rapid disassembly, assembly and replacement can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of camera device technology, and more specifically, to a camera exhaust and pressure reduction structure. Background Technology

[0002] Due to the demands of their usage scenarios, cameras typically require a sealed casing to prevent the intrusion of liquids and impurities, which could lead to short circuits or damage to internal components. While achieving a tight seal is relatively easy, a sealed casing can trap internal heat, especially for cameras used for extended periods or in high-temperature environments. Heat buildup inside the casing can cause internal air to expand and create pressure, leading to bulging and cracking over time. To optimize heat dissipation while maintaining a tight seal, a clever labyrinthine gas flow channel is designed inside the camera casing, as illustrated in Chinese Patent Publication No. CN211718676U, to connect the internal components... Multiple independent air chambers formed by component installation ensure that the internal gas of the camera achieves pressure balance during operation, preventing damage to the camera components due to excessively high local pressure. A polymer breathable membrane is used for pressure reduction, venting, and waterproofing. To facilitate the installation of this breathable membrane, a mounting groove for adhering the waterproof breathable membrane is typically created on the outside of the housing, as mentioned in CN210605312U. While this solves the venting and pressure reduction problems, it results in a complex structure, inconvenient component processing, and high cost. Furthermore, the polymer breathable membrane is expensive and easily damaged. Adding a mounting groove to the housing requires structural design and production scheduling, increasing the manufacturing difficulty of the housing and indirectly increasing the production cost of the camera. Therefore, how to reduce the manufacturing difficulty of the camera housing while ensuring venting and pressure reduction is the technical problem this invention aims to solve. Utility Model Content

[0003] The utility model description section introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. This utility model description section is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0004] To at least partially solve the above problems, this utility model provides a camera exhaust and pressure reduction structure, including: a first connector, a reset member disposed within the first connector, and a movable seal for sealing the first connector; one end of the first connector is provided with a first groove, the inner end face of the first groove is provided with a first hole, and the reset member is disposed within the first groove.

[0005] Preferably, the movable seal consists of a sealing end, a limiting end, and a connecting rod, with one end of the connecting rod connected to the sealing end and the other end connected to the limiting end.

[0006] Preferably, the sealing end, the limiting end, and the connecting rod are all disposed in the first groove. The outer wall of the limiting end is detachably connected to the inner wall of the first groove. The connecting rod passes through the limiting end and is movably connected to the limiting end. A second hole is provided on the limiting end. The reset member is located between the sealing end and the limiting end. The sealing end selectively seals the first hole through the reset member.

[0007] Preferably, the first connector has a threaded tube at one end near the first hole, and the first connector is threadedly connected to the camera housing through the threaded tube.

[0008] Preferably, the outer diameter of the threaded tube is smaller than the outer diameter of the first connector, and the end face of the first connector connected to the threaded tube is provided with an annular groove, and a sealing element is provided in the annular groove.

[0009] Preferably, the inner wall of the first groove is provided with an internal thread, the outer wall of the limiting end is provided with an external thread, and the limiting end is threadedly connected to the first groove.

[0010] Preferably, the inner diameter of the first hole near the limiting end is larger than the inner diameter of the hole away from the limiting end, and the shape of the sealing end is adapted to the first hole.

[0011] Preferably, the limiting end is provided with a limiting hole or limiting groove whose inner diameter is adapted to the outer diameter of the connecting rod, and the connecting rod is movably connected to the limiting hole or limiting groove.

[0012] Preferably, the diameter of the connecting rod is not greater than the inner diameter of the first hole; the connecting rod passes through the first hole, and the sealing end and the limiting end are located on both sides of the first hole, respectively.

[0013] Preferably, the sealing end is located outside the first groove and selectively seals the first groove through a reset member. One end of the reset member is connected to the inner end face of the first groove, and the other end is connected to the sealing end. The limiting end selectively abuts against the end face of the first connecting member near the first hole.

[0014] Preferably, the sealing end is located in the first groove and selectively seals the first hole through a reset member. One end of the reset member is connected to the inner wall at the opening of the first groove, and the other end is connected to the sealing end. The limiting end selectively abuts against the end face of the first connecting member near the first hole.

[0015] Preferably, the sealing end is located outside the first connector and close to the end where the first hole is provided. One end of the reset member abuts against the inner end face of the first groove, and the other end abuts against the limiting end. The limiting end is located inside or outside the first groove.

[0016] Preferably, it also includes a second connector, which consists of a connecting end and a filling end filled with filter medium. The connecting end is provided with a third hole communicating with the filling end. The first connector is connected to the camera housing through the connecting end, or the connecting end is connected to the camera housing through the first connector.

[0017] Preferably, the inner wall of the first groove is provided with an internal thread, the connecting end is tubular, and the outer wall is provided with an external thread that is compatible with the internal thread of the first groove, and the connecting end is threadedly connected to the first groove.

[0018] Preferably, the connecting end is tubular, and its inner wall is provided with an internal thread that is compatible with the external thread of the first connector. The first connector is disposed inside the connecting end and is threadedly connected to the connecting end.

[0019] Compared with the prior art, the present invention has at least the following beneficial effects:

[0020] By installing a detachable exhaust and pressure-reducing structure on the camera housing, pressure reduction and exhaust can be achieved inside the camera. This eliminates the need to purchase expensive polymer breathable membranes (as described in CN211718676U) or to set up complex labyrinth-style gas flow channels on the housing (as described in CN210605312U). This achieves waterproof and breathable effects, effectively reducing the production cost of the camera and optimizing the production process of the camera housing. Furthermore, this new invention can be connected to the camera housing using a threaded connection, enabling quick disassembly and replacement.

[0021] The camera exhaust and pressure reduction structure of this utility model, other advantages, objectives and features of this utility model will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this utility model. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0023] Figure 1 This is a schematic diagram of the first embodiment of the present invention.

[0024] Figure 2 This is a schematic diagram of the second embodiment of the present invention.

[0025] Figure 3 This is a schematic diagram of the third embodiment of the present invention (with a limiting end).

[0026] Figure 4This is a schematic diagram of the sealed state (A) and the exhaust pressure reduction state (B) of the third embodiment of this utility model (without a limiting end).

[0027] Figure 5 This is a schematic diagram of the fourth embodiment of the present invention on a camera.

[0028] Figure 6 This is a schematic diagram of the sealed state (A) and the exhaust pressure reduction state (B) of the fourth embodiment of this utility model.

[0029] Figure 7 This is a schematic diagram of the fifth embodiment of the present invention on a camera.

[0030] Figure 8 This is a schematic diagram of the sealed state according to the fifth embodiment of this utility model.

[0031] Figure 9 This is a schematic diagram of the exhaust pressure reduction state according to the fifth embodiment of this utility model.

[0032] In the figure: 1 First connector, 2 Reset component, 3 Movable seal, 31 Sealing end, 32 Limiting end, 321 Second hole, 33 Connecting rod, 4 Second connector, 41 Connecting end, 42 Filling end, 5 Third connector, 10 Camera housing. Detailed Implementation

[0033] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments, so that those skilled in the art can implement it based on the description.

[0034] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0035] like Figures 1-9As shown, this utility model provides a camera exhaust and pressure reduction structure, including: a first connecting member 1, a reset member 2 disposed within the first connecting member 1, and a movable seal 3 for sealing the first connecting member 1; the reset member 2 can be a spring, or any commercially available product or existing technology capable of resetting the movable seal 3. One end of the first connecting member 1 is provided with a first groove, and the inner end face of the first groove is provided with a first hole. The reset member 2 is disposed within the first groove. Typically, one end of the reset member 2 abuts against the inner end face of the first groove (the end face where the first groove connects to the first hole), and the other end is connected to the movable seal 3. Depending on the implementation, in the sealed state, the movable seal 3 can seal the first groove (abutting against the end face of the first connecting member 1) or seal the first hole (abutting against the inner end face of the first groove). To facilitate connection between this invention and the camera housing, the outer wall of the first connecting member 1 is provided with external threads, and the first connecting member 1 is threadedly connected to the camera housing, thereby facilitating installation and replacement. Typically, the inner diameter of the first groove is larger than the inner diameter of the first hole, thus giving the first groove an inner end face to facilitate the installation of the reset component 2.

[0036] The movable seal 3 consists of a sealing end 31, a limiting end 32, and a connecting rod 33. One end of the connecting rod 33 is connected to the sealing end 31, and the other end is connected to the limiting end 32. The sealing end 31 can cover the first groove or the first hole to achieve sealing of the first connector 1. Depending on the implementation method, the limiting end 32 can be used to limit the movement stroke of the sealing end 31 or to limit the connecting rod 33.

[0037] The working principle and beneficial effects of the above technical solution are as follows: By installing a detachable exhaust and pressure reduction structure on the camera housing, pressure reduction and exhaust can be achieved inside the camera. It is not necessary to purchase expensive polymer breathable membranes (as described in CN211718676U) or set up complex breathable membrane installation structures on the housing (as described in CN210605312U). Waterproof and breathable effects can be achieved, effectively reducing the production cost of the camera and optimizing the production process of the camera housing. Furthermore, this new invention can be connected to the camera housing by a threaded connection, which can achieve the effect of quick disassembly and replacement.

[0038] In the first implementation, such as Figure 1As shown, the opening of the first groove faces the inside of the camera. The first groove communicates with the outside of the camera through the first hole. The sealing end 31 is located outside the first connector 1 and close to the end where the first hole is located. One end of the reset member 2 abuts against the inner end face of the first groove, and the other end abuts against the limiting end 32. The limiting end 32 is located inside or outside the first groove. The shape and installation position of the limiting end 32 can be adapted to different product models. For example, the limiting end 32 can be a shape that adapts to the end face of the first connector 1 and is located outside the first groove. Figure 1 As shown, when the sealing end 31 separates from the end face of the first connecting member 1 and moves to its limit position, the limiting end 32 can abut against the end face of the first connecting member 1; the limiting end 32 can also be set in the first groove, with a slider as the limiting end 32, and slides against the inner wall of the first groove through the cooperation of the slider and the groove (on the inner wall of the first groove). The limiting end 32 should be provided with at least one second groove or second hole (321) for gas flow, so as to avoid the limiting end 32 from affecting the gas flow.

[0039] When the sealing end 31 abuts against the first connecting member 1, the sealing end 31 covers the first hole, thereby achieving a seal on the inside of the camera. During exhaust and pressure reduction, the high-pressure gas will push the sealing end 31 to move through the first hole, causing the sealing end 31 to release the seal on the first hole, thereby making the inside and outside of the camera connected, thus achieving the effect of exhaust and pressure reduction. The limiting end 32 compresses the reset member 2. When the internal and external air pressures are consistent, the limiting end 32 is pushed to reset under the action of the reset member 2, and then the sealing end 31 is reset through the connecting rod 33.

[0040] In the second implementation, such as Figure 2 As shown, the opening of the first groove faces the outside of the camera. The first groove communicates with the inside of the camera through the first hole. The sealing end 31 is located outside the first groove and selectively seals the first groove through the reset member 2. One end of the reset member 2 is connected to the inner end face of the first groove, and the other end is connected to the sealing end 31. The limiting end 32 selectively abuts against the end face of the first connecting member 1 near the first hole. In this embodiment, the difference from the first embodiment is that the force on the reset member 2 is different. In this embodiment, the reset member 2 is stretched during exhaust and pressure reduction. It should be noted that, similar to the first embodiment, the shape and installation position of the limiting end 32 can be adapted to different product models. For example, the limiting end 32 can be a shape that adapts to the end face of the first connecting member 1, or it can be a style that is different in shape or size from the first hole. Figure 2As shown, when the sealing end 31 separates from the end face of the first connecting member 1 and moves to its limit position, the limiting end 32 can abut against the end face of the first connecting member 1; the limiting end 32 can also slide to the inner wall of the first hole through the cooperation of a slider and a limiting groove (the limiting groove cannot communicate with the first groove). Any existing technology that can limit the sealing end 31 is acceptable. It should be noted that no matter how the limiting end 32 is limited to prevent the sealing end 31 from coming off, it should be ensured that one end of the reset member 2 is connected to the inner end face of the first groove and the other end is connected to the sealing end 31. In addition, the limiting end 32 should be provided with at least one second groove or second hole (321) that allows gas to flow, so as to avoid affecting the gas flow when the limiting end 32 moves to its limit position.

[0041] In the first two embodiments, the sealing end 31 is located outside the first connector 1. When venting and depressurizing, a certain space is required for the sealing end 31 to move. Therefore, when installing the camera, the above two embodiments need to reserve a certain space for the sealing end 31.

[0042] In the third implementation, such as Figure 3 As shown, the sealing end 31 is located in the first groove and selectively seals the first hole through the reset member 2. One end of the reset member 2 is connected to the inner wall of the opening of the first groove, and the other end is connected to the sealing end 31. The limiting end 32 selectively abuts against the end face of the first connecting member 1 near the first hole. The first hole is only used to radially limit the connecting rod 33. A first through hole needs to be provided on the side wall of the first hole to connect the inside of the camera and the first groove. A second through hole needs to be provided on the sealing end 31. The first through hole and the second through hole are not on the same axis. That is, when the sealing end 31 abuts against the inner end face of the first groove, the non-second through hole part of the sealing end 31 covers the first hole (the first through hole). Figure 3 As shown, during venting, the gas pushes the sealing end 31 to squeeze the reset member 2 through the first through hole. When the sealing end 31 separates from the inner end face of the first groove, the gas can be discharged to the outside of the camera through the first through hole and the second through hole. Compared with the second embodiment, the third embodiment embeds the sealing end 32 inside the first groove, so that the sealing end 32 will not move to the outside of the first groove during venting, thereby reducing the reserved space when installing the camera.

[0043] In the fourth embodiment, such as Figure 4As shown, the first connector 1 has a threaded tube at one end near the first hole. The first connector 1 is threadedly connected to the camera housing via the threaded tube, thus facilitating installation and disassembly. The outer diameter of the threaded tube is smaller than the outer diameter of the first connector 1. An annular groove is provided on the end face of the first connector 1 connected to the threaded tube, and a sealing element, typically a sealing ring, is provided in the annular groove to increase the sealing performance between the device and the camera housing. The sealing end 31, the limiting end 32, and the connecting rod 33 are all located within the first groove. The outer wall of the limiting end 32 is detachably connected to the inner wall of the first groove. Typically, an internal thread is provided in the first groove, and an external thread is provided on the outer wall of the limiting end 32, allowing the limiting end 32 to be installed in the first groove via a threaded connection. The inner diameter of the first hole near the limiting end 32 is larger than the inner diameter away from the limiting end 32. The shape of the sealing end 31 is adapted to the first hole, resulting in a larger contact area between the sealing end 31 and the first hole, thus increasing the sealing performance of the sealing end 31 to the first hole. The limiting end 32 is provided with a limiting hole or limiting groove whose inner diameter is adapted to the outer diameter of the connecting rod 33. The connecting rod 33 is movably connected to the limiting hole or limiting groove, thereby preventing the connecting rod 33 from swinging and increasing the stability of the movement of the connecting rod 33.

[0044] When a limiting hole is provided, the limiting hole passes through the limiting end 32, and the connecting rod 33 is movably connected to the limiting end 32 through the limiting hole;

[0045] When a limiting groove is provided, the depth of the limiting groove should be sufficient for the connecting rod 33 to be inserted, so that the sealing end 31 is separated from the first hole.

[0046] The limiting end 32 is provided with a second hole 321 or a second groove for gas flow. The reset member 2 is located between the sealing end 31 and the limiting end 32. The sealing end 31 selectively seals the first hole through the reset member 2. When the pressure inside the camera increases, the sealing end 31 can be pushed through the first hole, causing the sealing end 31 to separate from the first hole, and the reset member 2 to be compressed. At this time, there is a gap between the sealing end 31 and the first hole, and the gas is discharged to the outside of the camera through the second hole 321 along the gap.

[0047] When the air pressure inside the camera housing is less than the thrust of the reset component 2, the reset component 2 pushes the sealing end 31 to reset and reseal. This ensures that the air pressure inside the camera is balanced during operation, preventing excessively high local air pressure from damaging the camera components.

[0048] In the first four embodiments, especially the first and second embodiments, there is a risk that liquids and impurities outside the camera may enter the camera during the decompression process. To solve the above technical problem, we have made further optimizations.

[0049] In the fifth embodiment, a second connector 4 is also included. The second connector 4 consists of a connecting end 41 and a filling end 42 filled with filter media. The connecting end 41 is provided with a third hole communicating with the filling end 42. Depending on the embodiment, the structure, size, and installation position of the connecting end 41 vary.

[0050] 1. The first connector 1 is connected to the camera housing via the connector 41; for example, when the first, second, or third implementation method is used, such as... Figure 5 , 6 As shown, the connecting end 41 is tubular, and its inner wall is provided with an internal thread that is compatible with the external thread of the first connecting member 1. The first connecting member 1 is disposed inside the connecting end 41 and is threadedly connected to the connecting end 41. The connecting end 41 is connected to the housing of the camera.

[0051] 2. The connecting end 41 is connected to the camera housing via the first connecting member 1; for example, when the fourth implementation method is adopted, such as... Figure 4 As shown, the inner wall of the first groove is provided with internal threads, and the connecting end 41 is tubular with external threads on its outer wall that are compatible with the internal threads of the first groove. The connecting end 41 is threadedly connected to the first groove, and the first connecting piece 1 is connected to the camera housing. At this time, a buffer area is formed between the connecting end 41 and the sealing end 31 inside the first groove, which can effectively buffer and adjust pressure changes and prevent damage to camera components caused by excessively rapid pressure changes.

[0052] The filter medium is metal particles, carbon particles, a waterproof and breathable membrane, or a desiccant sheet.

[0053] By embedding the first connector 1 inside the second connector 4, the sealing end 31 is isolated from the outside during exhaust and pressure reduction, preventing liquids, impurities, etc. from entering the camera's interior. Filling the filling end 42 with metal particles can ensure air permeability and dust prevention while quickly absorbing the heat emitted from the camera and increasing the heat dissipation area.

[0054] Because the first connector 1 needs to be built into the second connector 4, there are high requirements for the size, internal structure, and machining precision of the second connector 4. This results in a large volume of the second connector 4, complex manufacturing process, and high production cost. To optimize the structure of the second connector 4, reduce the complexity of production, and save production costs, we provide a sixth implementation method. The outer wall of the connecting end 41 is provided with a third connector 5 that is detachably connected to the camera housing. The connecting end 41 is threadedly connected to the third connector 5, and the first connector 1 is disposed inside the third connector 5. We achieve the connection between the first connector 1 and the second connector 4 by adding the third connector 5, so that the third connector 5 can be used as... Figure 7-9As shown, the second connector 4 has a cylindrical structure with internal and external threads, which can greatly reduce the volume and processing difficulty. Furthermore, the three connectors can be manufactured separately and then assembled. In this embodiment, the processing accuracy requirements for the first connector 1 and the second connector 4 are greatly reduced compared to the fifth embodiment, thereby significantly reducing production costs and improving production efficiency.

[0055] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 of this utility model.

[0056] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0057] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A camera exhaust and pressure reduction structure, characterized in that, include: A first connector (1), a reset member (2) disposed within the first connector (1), and a movable seal (3) for sealing the first connector (1); one end of the first connector (1) is provided with a first groove, the inner end face of the first groove is provided with a first hole, and the reset member (2) is disposed within the first groove.

2. The camera exhaust and pressure reduction structure according to claim 1, characterized in that, The movable seal (3) consists of a sealing end (31), a limiting end (32) and a connecting rod (33). One end of the connecting rod (33) is connected to the sealing end (31), and the other end is connected to the limiting end (32).

3. The camera exhaust and pressure reduction structure according to claim 2, characterized in that, The sealing end (31), the limiting end (32), and the connecting rod (33) are all disposed in the first groove. The outer wall of the limiting end (32) is detachably connected to the inner wall of the first groove. The connecting rod (33) passes through the limiting end (32) and is movably connected to the limiting end (32). A second hole (321) is provided on the limiting end (32). The reset member (2) is located between the sealing end (31) and the limiting end (32). The sealing end (31) selectively seals the first hole through the reset member (2).

4. The camera exhaust and pressure reduction structure according to claim 3, characterized in that, The first connector (1) has a threaded tube at one end near the first hole, and the first connector (1) is threadedly connected to the camera housing through the threaded tube.

5. The camera exhaust and pressure reduction structure according to claim 4, characterized in that, The outer diameter of the threaded pipe is smaller than the outer diameter of the first connector (1). The end face of the first connector (1) connected to the threaded pipe is provided with an annular groove, and a sealing element is provided in the annular groove.

6. The camera exhaust and pressure reduction structure according to claim 3, characterized in that, The inner wall of the first groove is provided with an internal thread, and the outer wall of the limiting end (32) is provided with an external thread. The limiting end (32) is threadedly connected to the first groove.

7. The camera exhaust and pressure reduction structure according to claim 3, characterized in that, The inner diameter of the first hole near the limiting end (32) is larger than the inner diameter of the side away from the limiting end (32), and the shape of the sealing end (31) is adapted to the first hole.

8. The camera exhaust and pressure reduction structure according to claim 3, characterized in that, The limiting end (32) is provided with a limiting hole or limiting groove whose inner diameter is adapted to the outer diameter of the connecting rod (33), and the connecting rod (33) is movably connected to the limiting hole or limiting groove.

9. The camera exhaust and pressure reduction structure according to claim 2, characterized in that, The diameter of the connecting rod (33) is not greater than the inner diameter of the first hole; the connecting rod (33) passes through the first hole, and the sealing end (31) and the limiting end (32) are located on both sides of the first hole respectively.

10. The camera exhaust and pressure reduction structure according to claim 9, characterized in that, The sealing end (31) is located outside the first groove and selectively seals the first groove through the reset member (2). One end of the reset member (2) is connected to the inner end face of the first groove, and the other end is connected to the sealing end (31). The limiting end (32) selectively abuts against the end face of the first connecting member (1) near the first hole.

11. The camera exhaust and pressure reduction structure according to claim 9, characterized in that, The sealing end (31) is located in the first groove and selectively seals the first hole through the reset member (2). One end of the reset member (2) is connected to the inner wall at the opening of the first groove, and the other end is connected to the sealing end (31). The limiting end (32) selectively abuts against the end face of the first connecting member (1) near the first hole.

12. The camera exhaust and pressure reduction structure according to claim 9, characterized in that, The sealing end (31) is located outside the first connector (1) and close to the end where the first hole is provided. One end of the reset member (2) abuts against the inner end face of the first groove, and the other end abuts against the limiting end (32). The limiting end (32) is located inside or outside the first groove.

13. The camera exhaust and pressure reduction structure according to claim 1, characterized in that, It also includes a second connector (4), which consists of a connecting end (41) and a filling end (42) filled with filter medium. The connecting end (41) is provided with a third hole communicating with the filling end (42). The first connector (1) is connected to the camera housing through the connecting end (41), or the connecting end (41) is connected to the camera housing through the first connector (1).

14. The camera exhaust and pressure reduction structure according to claim 13, characterized in that, The inner wall of the first groove is provided with an internal thread, the connecting end (41) is tubular, and the outer wall is provided with an external thread that is compatible with the internal thread of the first groove. The connecting end (41) is threadedly connected to the first groove.

15. The camera exhaust and pressure reduction structure according to claim 13, characterized in that, The connecting end (41) is tubular, and its inner wall is provided with an internal thread that is compatible with the external thread of the first connecting member (1). The first connecting member (1) is disposed inside the connecting end (41) and is threadedly connected to the connecting end (41).

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