Waterproof lens and waterproof device thereof

Abstract

The utility model discloses a waterproof device. The waterproof device is characterized by comprising a shell, a top cover and a dehumidification structure, the top cover is arranged on the shell, and the dehumidification structure is arranged in the shell; the dehumidification structure comprises a reversing cylinder, a first connecting cylinder and a second connecting cylinder; the reversing cylinder is provided with a scavenging port, a first air port and a second air port, a reversing plate is rotatably connected in the reversing cylinder, and the edge of the reversing plate is movably and hermetically connected with the reversing cylinder; the first connecting cylinder is connected with the first air port, and a heating pipe, an adsorption part and a first fan are arranged in the first connecting cylinder; and the second connecting cylinder is connected with the second air port, and a second fan is arranged in the second connecting cylinder. Wherein the moisture absorption structure can quickly remove water mist by heating air, meanwhile, the dehumidification effect during normal use can be guaranteed through the adsorption part, the dehumidification part can be dried, and the stable working capacity of the dehumidification structure is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of lens components, in particular to a waterproof lens and a waterproof device thereof. Background Art

[0002] A lens is a component of an optical instrument, such as a video camera, still camera, or telescope, that focuses light and projects it onto a photosensitive element, thereby capturing an image or video. The quality and characteristics of a lens are crucial to the quality of the image. Surveillance camera lenses are specifically designed for use with surveillance cameras and typically feature specific features, such as wide-angle, zoom, and autofocus, to accommodate diverse surveillance scenarios. These lenses are commonly used in surveillance cameras, security cameras, and surveillance cameras for monitoring and recording.

[0003] Most surveillance cameras are deployed outdoors, in harsh operating environments. Therefore, surveillance camera lenses typically require waterproofing to ensure reliable operation in outdoor environments. This waterproofing helps protect the camera's internal electronic components and lens assembly from moisture, dust, rain, and other hazards, extending the camera's lifespan. Conventional technology typically uses a protective case to achieve waterproofing. However, since the lens needs to dissipate heat, the protective case cannot be sealed. Consequently, moisture easily enters the case, causing the lens to fog.

[0004] Patent publication number CN115220290A discloses a modular waterproof surveillance camera housing. The housing features two rows of heat dissipation holes on its bottom, with a water-absorbing expansion plate made of a porous, water-absorbing, and expandable material positioned between the two rows. While this design incorporates a water-absorbing collision plate to absorb moisture, the plate can easily become saturated and lose its water-absorbing properties in humid air. Water vapor can still easily enter the housing, causing the lens to fog. Utility Model Content

[0005] The purpose of this utility model is to provide a waterproof lens and a waterproof device thereof to solve the following technical problems raised in the background art:

[0006] Water vapor can easily enter the waterproof housing of the lens, causing water mist to appear on the lens surface.

[0007] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0008] A waterproof device comprises a housing, a top cover and a dehumidification structure; the top cover is arranged on the housing, and the dehumidification structure is arranged inside the housing;

[0009] The dehumidification structure includes a reversing cylinder, a first connecting cylinder and a second connecting cylinder; the reversing cylinder is provided with a ventilation port, a first air port and a second air port; a reversing plate is rotatably connected in the reversing cylinder and the edge of the reversing plate is movably and sealedly connected to the reversing cylinder;

[0010] The first connecting tube is connected to the first air port, and a heating tube, an adsorption component and a first fan are arranged in the first connecting tube; the second connecting tube is connected to the second air port, and a second fan is arranged in the second connecting tube.

[0011] Furthermore, outwardly protruding and inclined rain shielding eaves are provided on both sides of the top cover.

[0012] Furthermore, one side of the top cover is hinged to one side of the shell; a card plate is provided on the other side of the top cover, and a bayonet is provided on the card plate; an elastic card is provided on the other side of the shell, and the top of the elastic card is bent and can be inserted into the bayonet of the card plate.

[0013] Furthermore, a pulling head is fixedly connected to the top of the elastic clamp, and the pulling head is a T-shaped structure.

[0014] Furthermore, a connecting seat is fixedly connected to one side of the top cover, and a mounting seat is fixedly connected to one side of the shell. A rotating shaft is provided between the connecting seat and the mounting seat, and the rotating shaft is rotatably connected to the connecting seat and the mounting seat; a torsion spring is provided on the outer sleeve of the rotating shaft, one end of the torsion spring is fixedly connected to the connecting seat, and the other end of the torsion spring is fixedly connected to the mounting seat.

[0015] Furthermore, an opening is provided on one side of the shell, and a glass plate is sealed and connected to the opening.

[0016] Furthermore, a plurality of air holes are provided on one side of the shell close to the dehumidification structure.

[0017] Furthermore, the ventilation port on the reversing cylinder is a trumpet-shaped structure that opens outward.

[0018] Furthermore, the ventilation port, the first air port and the second air port are evenly spaced in the circumferential direction of the reversing cylinder, and the interval angle between the ventilation port and the first air port or the second air port is 120 degrees.

[0019] A waterproof lens comprises a lens and the waterproof device described above. The lens is arranged in a mounting shell and faces the ventilation port of a dehumidification structure.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] When the utility model is in use, the top cover is used to prevent rainwater from entering the housing, and the dehumidification structure is used to remove water mist. By adjusting the position of the reversing plate, the first air port is connected to the ventilation port. The fresh air becomes hot air after passing through the heating tube. The hot air enters the reversing cylinder through the first air port and then enters the housing through the ventilation port. The hot air increases the temperature inside the housing, thereby removing the water mist inside the housing. When the heating tube is turned off, the fresh air introduced by the first fan will pass through the adsorption component and enter the reversing cylinder and finally enter the housing. The adsorption component can absorb water vapor in the fresh air, ensuring that dry air enters the housing, thereby achieving cooling of the camera.

[0022] The utility model adjusts the position of the reversing plate so that the first air port is connected to the second air port. The first fan introduces fresh air from the outside, which is heated to form hot air. The hot air passes through the adsorption element and heats the adsorption element, evaporating the moisture in the adsorption element. The evaporated water vapor enters the reversing cylinder through the first air port, and the water vapor enters the second connecting cylinder through the second air port on the reversing cylinder. The second fan carries the water vapor in the second connecting cylinder out to the outside, ensuring the effective moisture absorption capacity of the adsorption element. This effectively prevents excessive moisture in the housing from condensing on the lens. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a front view of the utility model;

[0024] Figure 2 It is a left view of the utility model;

[0025] Figure 3 It is a right side view of the utility model;

[0026] Figure 4 This is a schematic diagram of the internal structure of the utility model;

[0027] Figure 5 This is a schematic diagram of the internal structure of the dehumidification structure of the present utility model.

[0028] Markings in the figure: 1-shell, 2-top cover, 3-pull head, 4-elastic clip, 5-glass plate, 6-rain shield, 7-mounting seat, 8-torsion spring, 9-rotating shaft, 10-connecting seat, 11-bayonet, 12-card plate, 13-air vent, 14-dehumidification structure, 15-lens, 16-ventilation port, 17-first air port, 18-first connecting tube, 19-heating tube, 20-first fan, 21-second fan, 22-adsorption part, 23-second connecting tube, 24-second air port, 25-reversing plate, 26-reversing tube. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Example:

[0031] A waterproof device, such as Figure 1 As shown, it includes a shell 1, a top cover 2 and a dehumidification structure 14; the top cover 2 is arranged on the shell 1, and the dehumidification structure 14 is arranged in the shell 1;

[0032] like Figure 5 As shown, the dehumidification structure 14 includes a reversing cylinder 26, a first connecting cylinder 18, and a second connecting cylinder 23. The reversing cylinder 26 is provided with a ventilation port 16, a first air port 17, and a second air port 24. A reversing plate 25 is rotatably connected within the reversing cylinder 26, and the edge of the reversing plate 25 is movably and sealedly connected to the reversing cylinder 26. The reversing plate 25 is rotatable within the reversing cylinder 26 and is used to connect the ventilation port 16 with the first air port 17 or the second air port 24, or connect the first air port 17 with the second air port 24. Specifically, the position of the reversing plate 25 can be adjusted by fixing a shaft to the middle of the reversing plate 25, with one end of the shaft extending outside the reversing cylinder 26. The reversing plate 25 is rotated by rotating the shaft 9. The shaft 9 can be rotated manually, or a motor can be provided and connected to the shaft to drive the shaft to rotate. The position of the reversing plate 25 can also be adjusted by designing a traction rope to pull the reversing plate 25.

[0033] like Figure 5 As shown, the first connecting tube 18 is connected to the first air port 17, and a heating tube 19, an adsorbent 22 and a first fan 20 are provided in the first connecting tube 18; the second connecting tube 23 is connected to the second air port 24, and a second fan 21 is provided in the second connecting tube 23. The air outlet of the first fan 20 faces the first air port 17, and the air outlet of the second fan 21 faces away from the second air port 24. The heating tube 19 is used to generate heat, and heating can be achieved by providing a resistance wire in the heating tube 19. Specifically, a power supply such as a battery that can provide electricity can be provided in the housing 1, and the heating tube 19 is powered by the power supply. After the heating tube 19 is powered, the resistance wire inside heats up. The adsorbent 22 is used to absorb water vapor in the air. The adsorbent 22 can be a breathable box body filled with a desiccant such as anhydrous calcium chloride or anhydrous magnesium sulfate. Renewable anhydrous calcium chloride is preferably used.

[0034] When in use, the top cover 2 is used to prevent rainwater from entering the shell 1. The top cover 2 is the most important waterproof structure and should be made of corrosion-resistant materials, such as aluminum alloy. In this design, the top cover 2 does not need to be sealed with the shell 1. On rainy days, the air is relatively humid, and some water vapor in the air easily enters the shell 1 and stays there to form water mist. At this time, the water mist can be removed by the dehumidification structure 14. Specifically, the position of the reversing plate 25 is first adjusted so that the first air port 17 is connected to the ventilation port 16. The heating pipe 19 is started to heat the heating pipe 19, and the first fan 20 is started. The first fan 20 sends fresh air into the first connecting tube 18. The fresh air becomes hot air after passing through the heating pipe 19. The hot air enters the reversing tube 26 through the first air port 17 and then enters the shell 1 through the ventilation port 16. The hot air increases the temperature inside the shell 1, thereby removing the water mist inside the shell 1. The heating tube 19 can then be turned off. The fresh air introduced by the first fan 20 will pass through the adsorbent 22, enter the reversing cylinder 26, and ultimately enter the housing 1. The adsorbent 22 absorbs moisture from the fresh air, ensuring that only dry air enters the housing 1, thereby cooling the camera. If the adsorbent 22 absorbs a large amount of moisture, its adsorption capacity will decrease. To ensure its effective moisture absorption capacity, the adsorbent 22 must be dried. Specifically, the position of the reversing plate 25 is adjusted so that the first air port 17 is connected to the second air port 24. The heating tube 19, the first fan 20, and the second fan 21 are turned on. The first fan 20 introduces fresh air from the outside. The fresh air is heated to form hot air. The hot air passes through the adsorbent 22 and heats the adsorbent 22, evaporating the moisture in the adsorbent 22. The evaporated water vapor enters the reversing cylinder 26 through the first air port 17. The water vapor enters the second connecting cylinder 23 through the second air port 24 on the reversing cylinder 26. The second fan 21 carries the water vapor in the second connecting cylinder 23 out to the outside. The above steps can complete the drying of the adsorbent 22 and ensure the effective moisture absorption capacity of the adsorbent 22. This effectively prevents excessive moisture in the housing 1 from condensing on the lens 15.

[0035] In a preferred embodiment, Figure 2 or Figure 3 As shown, outwardly protruding and inclined rain shields 6 are provided on both sides of the top cover 2. This design effectively prevents rainwater from directly entering the interior of the housing 1, enhancing the waterproof effect. Furthermore, the rain shields guide rainwater away from the sides of the housing 1, preventing it from flowing down the outer wall of the housing 1 and reducing the possibility of rainwater penetrating the housing 1, thereby effectively improving the waterproof effect.

[0036] In a preferred embodiment, Figure 3As shown, one side of the top cover 2 is hinged to one side of the shell 1; the other side of the top cover 2 is provided with a card plate 12, and the card plate 12 is provided with a bayonet 11; the other side of the shell 1 is provided with an elastic card 4, and the top of the elastic card 4 is bent and can be inserted into the bayonet 11 of the card plate 12. Specifically, the top cover 2 is clamped to the shell 1. When the top cover 2 is covered, the elastic card 4 is pulled outward to bend the elastic card 4, and then the top cover 2 is completely covered on the shell 1. The elastic card 4 is released. When the elastic card 4 is reset, the top part of the elastic card 4 will be inserted into the bayonet 11 on the card plate 12, thereby completing the position restriction of the top cover 2. When it is necessary to open the top cover 2, the elastic card 4 is first pulled outward, and then the top cover 2 is opened. This design makes it easy to open and close the top cover 2 and ensures that the top cover 2 is stably connected to the shell 1, ensuring that the top cover 2 can stably protect the shell 1.

[0037] In a preferred embodiment, Figure 3 As shown, a pull head 3 is fixed to the top of the elastic clamp 4, and the pull head 3 is a T-shaped structure. The design of the pull head 3 is to facilitate pulling the elastic clamp 4, thereby facilitating the opening and closing of the top cover 2.

[0038] In a preferred embodiment, Figure 2 As shown, a connecting seat 10 is fixedly connected to one side of the top cover 2, and a mounting seat 7 is fixedly connected to one side of the shell 1. A rotating shaft 9 is provided between the connecting seat 10 and the mounting seat 7, and the rotating shaft 9 is rotatably connected to the connecting seat 10 and the mounting seat 7; a torsion spring 8 is provided on the outer sleeve of the rotating shaft 9, one end of the torsion spring 8 is fixedly connected to the connecting seat 10, and the other end of the torsion spring 8 is fixedly connected to the mounting seat 7. The torsion spring 8 is designed to facilitate the opening of the top cover 2. The connecting seat 10 is rotatably connected to the mounting seat 7 through the rotating shaft 9. The torsion spring 8 ensures that the top cover 2 has a tendency to open after being closed. This allows the bayonet 11 on the clamping plate 12 to fit tightly with the top of the elastic clamp 4. After pulling the elastic clamp 4, the torsion spring 8 resets and drives the top cover 2 to pop up, so that the top cover 2 can open automatically.

[0039] In a preferred embodiment, Figure 2 As shown, housing 1 has an opening on one side, sealed with a glass plate 5. The position of glass plate 5 ensures that lens 15 within housing 1 can capture images properly. Furthermore, the sealed glass plate 5 effectively prevents moisture from entering housing 1, thereby enhancing its waterproof capabilities.

[0040] In a preferred embodiment, Figure 3As shown, a plurality of air holes 13 are provided on one side of the housing 1 near the dehumidification structure 14. These holes are designed to facilitate the entry of external air into the dehumidification structure 14 and to facilitate the discharge of air from the dehumidification structure 14. Furthermore, the design of the air holes 13 reduces dust and impurities in the air entering the dehumidification structure 14, thereby extending the service life of the dehumidification structure 14.

[0041] In a preferred embodiment, Figure 4 As shown, the ventilation opening 16 on the reversing cylinder 26 is an outwardly flared trumpet-shaped structure. After being processed by the heating tube 19 and adsorbent 22 within the first connecting cylinder 18, the outside air enters the reversing cylinder 26 and ultimately enters the housing 1 through the reversing opening on the reversing cylinder 26. The trumpet-shaped ventilation opening 16 facilitates air diffusion within the housing 1.

[0042] In a preferred embodiment, Figure 5 As shown, the ventilation port 16, the first air port 17, and the second air port 24 are evenly spaced around the circumference of the reversing cylinder 26. The interval angle between the ventilation port 16 and the first air port 17 or the second air port 24 is 120 degrees. This design allows for convenient control of whether the first air port 17 is connected to the ventilation port 16 or the second air port 24 by adjusting the angle of the reversing plate 25, ensuring smooth air flow within the reversing cylinder 26.

[0043] A waterproof lens, such as Figure 4 As shown, the lens 15 and the waterproof device described in the previous aspect are included. The lens 15 is disposed within the mounting housing, with the lens 15 facing the ventilation port 16 of the dehumidification structure 14. This design ensures that the surface of the lens 15 remains dry, preventing water mist or water vapor from affecting the lens 15, thereby improving the clarity and service life of the lens 15.

[0044] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "two ends", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0045] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0046] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A waterproof device, characterized in that: It comprises a shell (1), a top cover (2), and a dehumidification structure (14); the top cover (2) is arranged on the shell (1), and the dehumidification structure (14) is arranged inside the shell (1); The dehumidification structure (14) includes a reversing cylinder (26), a first connecting cylinder (18), and a second connecting cylinder (23); the reversing cylinder (26) is provided with a ventilation port (16), a first air port (17), and a second air port (24); a reversing plate (25) is rotatably connected to the reversing cylinder (26), and an edge of the reversing plate (25) is movably sealed to the reversing cylinder (26); The first connecting tube (18) is connected to the first air port (17), and a heating tube (19), an adsorption member (22), and a first fan (20) are provided in the first connecting tube (18); the second connecting tube (23) is connected to the second air port (24), and a second fan (21) is provided in the second connecting tube (23).

2. A waterproof device according to claim 1, characterized in that: Both sides of the top cover (2) are provided with outwardly protruding and inclined rain shielding eaves (6).

3. The waterproof device according to claim 1, characterized in that: One side of the top cover (2) is hinged to one side of the housing (1); a card plate (12) is provided on the other side of the top cover (2), and a bayonet (11) is provided on the card plate (12); and an elastic card member (4) is provided on the other side of the housing (1), and the top of the elastic card member (4) is bent and can be inserted into the bayonet (11) of the card plate (12).

4. A waterproof device according to claim 3, characterized in that: A pulling head (3) is fixedly connected to the top of the elastic clamp (4), and the pulling head (3) is a T-shaped structure.

5. The waterproof device according to claim 3, characterized in that: A connecting seat (10) is fixedly connected to one side of the top cover (2), and a mounting seat (7) is fixedly connected to one side of the shell (1). A rotating shaft (9) is provided between the connecting seat (10) and the mounting seat (7), and the rotating shaft (9) is rotatably connected to the connecting seat (10) and the mounting seat (7); a torsion spring (8) is provided on the outer sleeve of the rotating shaft (9), one end of the torsion spring (8) is fixedly connected to the connecting seat (10), and the other end of the torsion spring (8) is fixedly connected to the mounting seat (7).

6. The waterproof device according to claim 1, characterized in that: An opening is provided on one side of the housing (1), and a glass plate (5) is sealed and connected to the opening.

7. The waterproof device according to claim 1, characterized in that: A plurality of air holes (13) are provided on one side of the shell (1) close to the dehumidification structure (14).

8. The waterproof device according to claim 1, characterized in that: The ventilation port (16) on the reversing cylinder (26) is a trumpet-shaped structure that opens outward.

9. The waterproof device according to claim 1, characterized in that: The ventilation port (16), the first air port (17), and the second air port (24) are evenly spaced in the circumferential direction of the reversing cylinder (26), and the spacing angle between the ventilation port (16) and the first air port (17) or the second air port (24) is 120 degrees.

10. A waterproof lens, comprising a lens (15) and a waterproof device according to any one of claims 1 to 9, characterized in that: The lens (15) is arranged in the installation shell, and the lens (15) faces the ventilation port (16) of the dehumidification structure (14).

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