Underwater miniature flash lamp

Abstract

The utility model discloses an underwater miniature flash lamp, and belongs to the field of underwater photographic equipment. Comprising a main shell, a main control module, a wireless receiving module, a display module, a button adjusting module, a power supply module and a light reflection module, the main shell is of a flat structure, and the main control module, the wireless receiving module, the display module, the button adjusting module and the power supply module are all installed on the main shell; and the wireless receiving module, the display module, the button adjusting module and the power supply module are all connected with the main control module. Compared with the prior art, the main shell is arranged to be of the flat structure, so that the flash lamp can conveniently extend into a crack in an underwater environment to be used; meanwhile, through the arrangement of the slot structures, all the modules can be independently and modularly assembled, and the assembling efficiency can be improved.

Description

Technical Field

[0001] The utility model belongs to the field of underwater photography equipment, in particular to an underwater miniature flashlight. Background Art

[0002] Underwater photography is a type of film and television stunt photography. The photographer carries a camera or camera with a waterproof protective cover and diving equipment to dive into the water to shoot. Underwater photography can truly reflect underwater scenes, such as underwater animals and plants, geological data such as the seabed and riverbed, and archaeological discoveries. Underwater photography has a wide range of applications in scientific research, military, sports, teaching, etc., and has gradually entered the lives of the public with the development of science and technology.

[0003] Flashlight is one of the ways to enhance the exposure, especially when the light is dim during underwater photography, flashlight is an indispensable device. For example, the existing patent with application number CN202321437056.4 discloses an underwater flashlight with wireless remote control flash triggering, including a shell, a circuit board is provided inside the shell, a light receiver is provided on the side of the shell, a reflective cup, a flash tube and an aiming light are provided at one end of the shell, the reflective cup is fixedly mounted on the shell, the flash tube is fixedly mounted on the reflective cup, and the wiring terminals of the light receiver, the wiring terminals of the aiming light and the wiring terminals of the flash tube are all inserted into the interior of the shell and electrically connected to the circuit board. This underwater flashlight with wireless remote control flash triggering is provided with a light receiver, a reflective cup, a flash tube and an aiming light, and the light receiver synchronizes the shooting and adjustment functions by receiving the light signal of the camera flash trigger or the underwater remote control.

[0004] Although the flash disclosed in the above patent can receive the camera's signal wirelessly and avoid cables getting entangled underwater, its shell is cylindrical and after assembly, the flash is relatively bulky as a whole, making it inconvenient to insert into underwater cracks for use. Utility Model Content

[0005] In order to solve the above problems, the purpose of the utility model is to provide an underwater miniature flashlight, which is convenient for use in cracks in underwater environments.

[0006] To achieve the above purpose, the technical solution of the utility model is as follows:

[0007] The utility model provides an underwater miniature flashlight, comprising: a main shell, a main control module, a wireless receiving module, a display module, a button adjustment module, a power supply module, and a reflective module. The main shell is a flat structure, the main control module, the wireless receiving module, the display module, the button adjustment module, and the power supply module are all installed in the main shell, and the wireless receiving module, the display module, the button adjustment module, and the power supply module are all connected to the main control module.

[0008] In this application, the main control module is used as the central processing center to control the operation of the entire flash; the wireless receiving module can wirelessly receive the light signal of the camera flash trigger or underwater remote control to synchronize the shooting and adjustment functions; the display module is used to display the status and working parameters of the flash; the button adjustment module is used to turn on or off the flash and switch the working mode of the flash; the power supply module is used to supply power to the flash; the main housing is used to install the main control module, the wireless receiving module, the display module, and the button adjustment module. The main housing is set to a flat structure, which can facilitate the flash to be inserted into the cracks of the underwater environment for use.

[0009] Furthermore, a first mounting slot, a second mounting slot, a third mounting slot and a fourth mounting slot are provided in the main shell body, the second mounting slot, the third mounting slot and the fourth mounting slot are all connected to the first mounting slot, the main control module, the button adjustment module and the reflective module are all provided in the first mounting slot, the side wall of the first mounting slot is provided with a first opening and a second opening, the button adjustment module passes through the first opening and is exposed outside the main shell body, and the reflective module is exposed to the main shell body through the second opening; the power supply module is provided in the second mounting slot; the third mounting slot and the fourth mounting slot are both open slots, the display module is provided in the third mounting slot and is exposed outside the main shell body, and the wireless receiving module is provided in the fourth mounting slot and is exposed outside the main shell body.

[0010] Furthermore, the underwater miniature flashlight also includes an optical fiber interface module, and the main housing is also provided with an open fifth mounting slot, the fifth mounting slot is communicated with the first mounting slot, and the optical fiber interface module is arranged in the fifth mounting slot and exposed from the main housing. The optical fiber interface module can be used as a backup interface to receive optical signals from a camera flash trigger or an underwater remote controller to synchronize shooting and adjustment functions.

[0011] In the present application, through the setting of the above slot structure, each module can be assembled separately and modularly. During assembly, the following are assembled in sequence: main control module, power supply module, display module, fiber optic interface module, wireless receiving module, button adjustment module, and reflective module, which can improve assembly efficiency.

[0012] Furthermore, the main control module includes a main control PCB board, and the main control PCB board is arranged in the first installation groove.

[0013] Furthermore, the wireless receiving module includes a wireless receiving PCB board, a wireless transparent cover, a wireless support plate, a wireless outer cover, and a wireless waterproof sealing ring. The wireless receiving PCB board is electrically connected to the main control PCB board. The wireless receiving PCB board, the wireless transparent cover, and the wireless support plate are all arranged in the fourth installation groove. The wireless outer cover is fixedly connected to the side wall of the fourth installation groove, and the wireless receiving PCB board is installed on the wireless support plate; the wireless transparent cover is arranged outside the wireless support plate, and the wireless transparent cover penetrates the wireless outer cover and is exposed outside the main shell, and the wireless waterproof sealing ring is arranged between the wireless outer cover and the wireless transparent cover.

[0014] Further, the display module includes an LCD panel, an LCD cover, an LCD transparent panel, and an LCD waterproof sealing ring. The LCD panel is electrically connected to the main control PCB board. The LCD panel is arranged in the third mounting groove. The LCD transparent panel is arranged in the third mounting groove and covers the outside of the LCD panel. The LCD cover is arranged on the outside of the LCD transparent panel and fixed on the outer wall of the third mounting groove, and the LCD cover is exposed in the third mounting groove; the LCD waterproof sealing ring is arranged between the LCD transparent panel and the side wall of the third mounting groove.

[0015] Further, the power supply module includes a battery, a conductive barrel, a spring, a battery waterproof seal ring, a battery PCB board, a battery board support, and a battery cover. The battery, the conductive barrel, the battery PCB board, and the battery board support are all arranged in the second mounting groove. The battery is arranged in the conductive barrel and electrically connected to the battery PCB board. The battery PCB board is electrically connected to the main control PCB board. The battery PCB board is fixed to the battery board support. The second mounting groove is an open groove with one end open. The battery cover is covered at the opening of the second mounting groove. The spring is arranged between the battery and the battery cover; the battery waterproof seal ring is arranged between the battery cover and the outer wall of the second mounting groove. In the present application, the conductive barrel can limit the battery. The battery cover uses the spring to hold the battery fixed to the conductive barrel and electrically connected to the battery PCB board. The battery cover and the second mounting groove can be detachably connected by means of threads, etc., to facilitate the disassembly and assembly of the battery.

[0016] Furthermore, the button adjustment module includes a knob cover, a knob shaft, a knob dial, a knob spring, a knob PCB board, a knob waterproof sealing ring, and a positioning bolt, wherein the positioning bolt is threadedly connected to the first opening, and the knob waterproof sealing ring is arranged between the positioning bolt and the first opening; the knob dial and the knob PCB board are both arranged in the first mounting groove, the knob PCB board is electrically connected to the main control PCB board, and one end of the knob dial is embedded in the knob PCB board; the knob shaft movably passes through the positioning bolt, and one end of the knob shaft is connected to the knob dial, and the other end is connected to the knob cover; the knob spring is arranged between the positioning bolt and the knob cover, and a gap is also arranged between the knob cover and the positioning bolt. In the present application, the knob cover is often pressed to push the knob shaft into the first mounting slot, thereby achieving long-term contact between the knob dial and the knob PCB board to turn on the device; by rotating the knob cover, the knob shaft and the knob dial are driven to rotate to adjust the working parameters and switch the working mode; the spring can reset the knob cover.

[0017] Furthermore, the reflective module includes a reflective bowl, a light board, a light-transmitting lens, a waterproof sealing ring of a lamp head, and a top cover. The reflective bowl, the light board, and the light-transmitting lens are all arranged in the first mounting groove. The light board is electrically connected to the main control PCB board. The reflective bowl is installed on the light board. The light-transmitting lens is shielded on the outside of the reflective bowl, and the light-transmitting lens is located on the inside of the second opening. The top cover is fixed to the second opening, and the waterproof sealing ring of the lamp head is arranged between the top cover and the second opening. In the present application, a lamp tube or a lamp bead is arranged on the lamp board. After the lamp tube or the lamp bead emits light, it is reflected by the reflective bowl, and then passes through the light-transmitting lens and is emitted from the second opening to realize underwater flash lighting.

[0018] Furthermore, the optical fiber interface module includes an optical fiber connector, an optical fiber cover, and an optical fiber waterproof sealing ring. The optical fiber connector is arranged in the fifth mounting groove, one end of the optical fiber connector is connected to the main control PCB board, and the other end extends into the optical fiber cover; the optical fiber cover is threadedly connected to the side wall of the fifth mounting groove and exposed in the fifth mounting groove, and the optical fiber waterproof sealing ring is arranged between the optical fiber cover and the side wall of the fifth mounting groove.

[0019] Furthermore, symmetrical balancing wings are connected to both sides of the main shell.

[0020] Compared with the prior art, the utility model can facilitate the insertion of the flashlight into cracks in underwater environments for use by configuring the main shell to be a flat structure; at the same time, by configuring the slot structure, each module can be assembled separately and modularly, thereby improving assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 4 is a schematic diagram of the structure of the underwater micro flashlight of this embodiment from a first perspective.

[0022] Figure 2 4 is a schematic structural diagram of the underwater micro flashlight of the present embodiment from a second viewing angle.

[0023] Figure 3 It is an exploded view of the underwater micro flashlight of this embodiment from a first perspective.

[0024] Figure 4 yes Figure 3 A partial enlarged view of point A in the middle.

[0025] Figure 5 yes Figure 3 A partial enlarged view of point B in the middle.

[0026] Figure 6 It is a schematic structural diagram of the main shell of this embodiment from a first perspective.

[0027] Figure 7 It is a structural schematic diagram of the main shell of this embodiment from a second viewing angle.

[0028] Description of labels:

[0029] 1. Main housing; 2. Main control module; 3. Wireless receiving module; 4. Display module; 5. Button adjustment module; 6. Power supply module; 7. Reflective module; 8. Optical fiber interface module; 9. Balance wing;

[0030] 11. first mounting slot; 12. second mounting slot; 13. third mounting slot; 14. fourth mounting slot; 15. first opening; 16. second opening; 17. fifth mounting slot;

[0031] 21. Main control PCB board;

[0032] 31. Wireless receiving PCB board; 32. Wireless transparent cover; 33. Wireless support plate; 34. Wireless outer cover; 35. Wireless waterproof sealing ring;

[0033] 41. LCD panel; 42. LCD cover; 43. LCD transparent panel; 44. LCD waterproof sealing ring;

[0034] 51. Knob cover; 52. Knob shaft; 53. Knob turntable; 54. Knob spring; 55. Knob PCB board; 56. Knob waterproof sealing ring; 57. Positioning bolt;

[0035] 61. Battery; 62. Conductive barrel; 63. Spring; 64. Battery waterproof seal ring; 65. Battery PCB board; 66. Battery board support; 67. Battery cover;

[0036] 71. Reflector bowl; 72. Lamp board; 73. Translucent lens; 74. Lamp head waterproof sealing ring; 75. Top cover;

[0037] 81. Optical fiber connector; 82. Optical fiber cover; 83. Optical fiber waterproof sealing ring. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0039] To achieve the above purpose, the technical solution of the utility model is as follows:

[0040] See also Figure 1-7 As shown, this embodiment provides an underwater miniature flashlight, including: a main shell 1, a main control module 2, a wireless receiving module 3, a display module 4, a button adjustment module 5, a power supply module 6, and a reflective module 7. The main shell 1 is a flat structure, the main control module 2, the wireless receiving module 3, the display module 4, the button adjustment module 5, and the power supply module 6 are all installed on the main shell 1, and the wireless receiving module 3, the display module 4, the button adjustment module 5, and the power supply module 6 are all connected to the main control module 2.

[0041] In this embodiment, the main control module 2 is used as a central processing center to control the operation of the entire flash; the wireless receiving module 3 can receive the light signal of the camera flash trigger or underwater remote control in a wireless manner to synchronize the shooting and adjustment functions; the display module 4 is used to display the status and working parameters of the flash; the button adjustment module 5 is used to turn on or off the flash and switch the working mode of the flash; the power supply module 6 is used to supply power to the flash; the main housing 1 is used to install the main control module 2, the wireless receiving module 3, the display module 4, and the button adjustment module 5. The main housing 1 is set to a flat structure, which can facilitate the flash to be inserted into the cracks of the underwater environment for use.

[0042] Furthermore, a first mounting groove 11, a second mounting groove 12, a third mounting groove 13, and a fourth mounting groove 14 are provided in the main shell 1, and the second mounting groove 12, the third mounting groove 13, and the fourth mounting groove 14 are all connected to the first mounting groove 11, the main control module 2, the button adjustment module 5, and the reflective module 7 are all provided in the first mounting groove 11, and the side wall of the first mounting groove 11 is provided with a first opening 15 and a second opening 16, the button adjustment module 5 passes through the first opening 15 and is exposed outside the main shell 1, and the reflective module 7 is exposed to the main shell 1 through the second opening 16; the power supply module 6 is provided in the second mounting groove 12; the third mounting groove 13 and the fourth mounting groove 14 are both open grooves, the display module 4 is provided in the third mounting groove 13 and is exposed outside the main shell 1, and the wireless receiving module 3 is provided in the fourth mounting groove 14 and is exposed outside the main shell 1.

[0043] Furthermore, the underwater miniature flashlight also includes an optical fiber interface module 8, and the main housing 1 is further provided with an open fifth mounting groove 17, the fifth mounting groove 17 is communicated with the first mounting groove 11, and the optical fiber interface module 8 is arranged in the fifth mounting groove 17 and exposed from the main housing 1. The optical fiber interface module 8 can be used as a backup interface to receive the optical signal of the camera flash trigger or the underwater remote controller to synchronize the shooting and adjustment functions.

[0044] In this embodiment, through the setting of the above slot structure, each module can be assembled separately and modularly. During assembly, the following are assembled in sequence: main control module 2, power supply module 6, display module 4, fiber optic interface module 8, wireless receiving module 3, button adjustment module 5, and reflective module 7, which can improve assembly efficiency.

[0045] Furthermore, the main control module 2 includes a main control PCB board 21 , and the main control PCB board 21 is disposed in the first installation slot 11 .

[0046] Furthermore, the wireless receiving module 3 includes a wireless receiving PCB board 31, a wireless transparent cover 32, a wireless support plate 33, a wireless outer cover 34, and a wireless waterproof sealing ring 35. The wireless receiving PCB board 31 is electrically connected to the main control PCB board 21. The wireless receiving PCB board 31, the wireless transparent cover 32, and the wireless support plate 33 are all arranged in the fourth installation groove 14. The wireless outer cover 34 is fixedly connected to the side wall of the fourth installation groove 14, and the wireless receiving PCB board 31 is installed on the wireless support plate 33; the wireless transparent cover 32 is arranged outside the wireless support plate 33, and the wireless transparent cover 32 penetrates the wireless outer cover 34 and is exposed outside the main shell 1, and the wireless waterproof sealing ring 35 is arranged between the wireless outer cover 34 and the wireless transparent cover 32.

[0047] Further, the display module 4 includes an LCD panel 41, an LCD cover 42, an LCD transparent panel 43, and an LCD waterproof seal ring 44. The LCD panel 41 is electrically connected to the main control PCB board 21. The LCD panel 41 is arranged in the third mounting groove 13. The LCD transparent panel 43 is arranged in the third mounting groove 13 and covers the outside of the LCD panel 41. The LCD cover 42 is arranged on the outside of the LCD transparent panel 43 and fixed on the outer wall of the third mounting groove 13, and the LCD cover 42 is exposed in the third mounting groove 13. The LCD waterproof seal ring 44 is arranged between the LCD transparent panel 43 and the side wall of the third mounting groove 13. In this embodiment, the LCD panel 41 is a PCB board with an LCD screen, which can display the working status of the product.

[0048] Furthermore, the power supply module 6 includes a battery 61, a conductive barrel 62, a spring 63, a battery waterproof sealing ring 64, a battery PCB board 65, a battery board support 66, and a battery cover 67. The battery 61, the conductive barrel 62, the battery PCB board 65, and the battery board support 66 are all arranged in the second mounting groove 12. The battery 61 is arranged in the conductive barrel 62 and is electrically connected to the battery PCB board 65. The battery PCB board 65 is electrically connected to the main control PCB board 21. The battery PCB board 65 is fixed to the battery board support 66. The second mounting groove 12 is an open groove with one end open. The battery cover 67 covers the opening of the second mounting groove 12. The spring 63 is arranged between the battery and the battery cover 67; the battery waterproof sealing ring 64 is arranged between the battery cover 67 and the outer wall of the second mounting groove 12. In this embodiment, the conductive barrel 62 can limit the battery, and the battery cover 67 uses the spring 63 to hold the battery in the conductive barrel 62 and electrically connect it to the battery PCB board 65. The battery cover 67 and the second mounting groove 12 can be detachably connected by threads or the like, which facilitates the disassembly and assembly of the battery.

[0049] Furthermore, the button adjustment module 5 includes a knob cover 51, a knob shaft 52, a knob dial 53, a knob spring 54, a knob PCB board 55, a knob waterproof sealing ring 56, and a positioning bolt 57. The positioning bolt 57 is threadedly connected to the first opening 15, and the knob waterproof sealing ring 56 is arranged between the positioning bolt 57 and the first opening 15; the knob dial 53 and the knob PCB board 55 are both arranged in the first installation groove 11, the knob PCB board 55 is electrically connected to the main control PCB board 21, and one end of the knob dial 53 is embedded in the knob PCB board 55; the knob shaft 52 movably passes through the positioning bolt 57, and one end of the knob shaft 52 is connected to the knob dial 53, and the other end is connected to the knob cover 51; the knob spring 54 is arranged between the positioning bolt and the knob cover 51, and a gap is also arranged between the knob cover 51 and the positioning bolt. In this embodiment, the knob cover 51 is often pressed to push the knob shaft 52 into the first mounting slot 11, thereby achieving long-term contact between the knob dial 53 and the knob PCB board 55, thereby turning on the device; by rotating the knob cover 51, the knob shaft 52 and the knob dial 53 are driven to rotate to adjust the working parameters, thereby switching the working mode; the spring can reset the knob cover 51.

[0050] Furthermore, the reflective module 7 includes a reflective bowl 71, a light board 72, a light-transmitting lens 73, a lamp head waterproof seal ring 74, and a top cover 75. The reflective bowl 71, the light board 72, and the light-transmitting lens 73 are all arranged in the first installation groove 11. The light board 72 is electrically connected to the main control PCB board 21. The reflective bowl 71 is installed on the light board 72. The light-transmitting lens 73 is shielded on the outside of the reflective bowl 71, and the light-transmitting lens 73 is located inside the second opening. The top cover 75 is fixed to the second opening, and the lamp head waterproof seal ring 74 is arranged between the top cover 75 and the second opening. In this embodiment, a lamp tube or a lamp bead is arranged on the lamp board 72. After the lamp tube or the lamp bead emits light, it is reflected by the reflective bowl 71, and then passes through the light-transmitting lens 73 and emits from the second opening to realize underwater flash lighting.

[0051] Furthermore, the optical fiber interface module 8 includes an optical fiber connector 81, an optical fiber cover 82, and an optical fiber waterproof sealing ring 83. The optical fiber connector 81 is arranged in the fifth mounting groove 17. One end of the optical fiber connector 81 is connected to the main control PCB board 21, and the other end extends into the optical fiber cover 82; the optical fiber cover 82 is threadedly connected to the side wall of the fifth mounting groove 17 and exposed in the fifth mounting groove 17, and the optical fiber waterproof sealing ring 83 is arranged between the optical fiber cover 82 and the side wall of the fifth mounting groove 17.

[0052] Furthermore, symmetrical balancing wings 9 are connected to both sides of the main housing 1 .

[0053] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An underwater miniature flashlight, characterized in that: include: Main shell, main control module, wireless receiving module, display module, button adjustment module, power supply module, reflective module, the main shell is a flat structure, the main control module, wireless receiving module, display module, button adjustment module, power supply module are all installed in the main shell, and the wireless receiving module, display module, button adjustment module, power supply module are all connected to the main control module.

2. An underwater miniature flashlight as claimed in claim 1, characterized in that: The main shell body is provided with a first mounting slot, a second mounting slot, a third mounting slot and a fourth mounting slot, the second mounting slot, the third mounting slot and the fourth mounting slot are all connected to the first mounting slot, the main control module, the button adjustment module and the reflective module are all arranged in the first mounting slot, the side wall of the first mounting slot is provided with a first opening and a second opening, the button adjustment module passes through the first opening and is exposed outside the main shell body, and the reflective module is exposed to the main shell body through the second opening; the power supply module is arranged in the second mounting slot; the third mounting slot and the fourth mounting slot are both open slots, the display module is arranged in the third mounting slot and is exposed outside the main shell body, and the wireless receiving module is arranged in the fourth mounting slot and is exposed outside the main shell body.

3. An underwater miniature flashlight as claimed in claim 2, characterized in that: The underwater miniature flashlight also includes a fiber optic interface module. The main shell is also provided with an open fifth mounting slot, which is connected to the first mounting slot. The fiber optic interface module is arranged in the fifth mounting slot and exposed on the main shell.

4. An underwater miniature flashlight as claimed in claim 3, characterized in that: The main control module includes a main control PCB board, and the main control PCB board is arranged in the first installation groove.

5. An underwater miniature flashlight as claimed in claim 4, characterized in that: The wireless receiving module includes a wireless receiving PCB board, a wireless transparent cover, a wireless support plate, a wireless outer cover, and a wireless waterproof sealing ring. The wireless receiving PCB board is electrically connected to the main control PCB board. The wireless receiving PCB board, the wireless transparent cover, and the wireless support plate are all arranged in the fourth installation groove. The wireless outer cover is fixedly connected to the side wall of the fourth installation groove, and the wireless receiving PCB board is installed on the wireless support plate; the wireless transparent cover is arranged outside the wireless support plate, and the wireless transparent cover penetrates the wireless outer cover and is exposed outside the main shell, and the wireless waterproof sealing ring is arranged between the wireless outer cover and the wireless transparent cover.

6. An underwater miniature flashlight as claimed in claim 4, characterized in that: The display module includes an LCD panel, an LCD cover, an LCD transparent panel, and an LCD waterproof sealing ring. The LCD panel is electrically connected to the main control PCB board. The LCD panel is arranged in the third mounting groove. The LCD transparent panel is arranged in the third mounting groove and covers the outer side of the LCD panel. The LCD cover is arranged on the outer side of the LCD transparent panel and fixed on the outer wall of the third mounting groove, and the LCD cover is exposed in the third mounting groove. The LCD waterproof sealing ring is arranged between the LCD transparent panel and the side wall of the third mounting groove.

7. An underwater miniature flashlight as claimed in claim 4, characterized in that: The power supply module includes a battery, a conductive barrel, a spring, a battery waterproof seal ring, a battery PCB board, a battery board support, and a battery cover. The battery, the conductive barrel, the battery PCB board, and the battery board support are all arranged in the second mounting groove. The battery is arranged in the conductive barrel and is electrically connected to the battery PCB board. The battery PCB board is electrically connected to the main control PCB board. The battery PCB board is fixed to the battery board support. The second mounting groove is an open groove with one end open. The battery cover covers the opening of the second mounting groove. The spring is arranged between the battery and the battery cover; the battery waterproof seal ring is arranged between the battery cover and the outer wall of the second mounting groove.

8. An underwater miniature flashlight as claimed in claim 4, characterized in that: The button adjustment module includes a knob cover, a knob shaft, a knob dial, a knob spring, a knob PCB board, a knob waterproof sealing ring, and a positioning bolt. The positioning bolt is threadedly connected to the first opening, and the knob waterproof sealing ring is arranged between the positioning bolt and the first opening; the knob dial and the knob PCB board are both arranged in the first installation groove, the knob PCB board is electrically connected to the main control PCB board, and one end of the knob dial is embedded in the knob PCB board; the knob shaft movably passes through the positioning bolt, and one end of the knob shaft is connected to the knob dial, and the other end is connected to the knob cover; the knob spring is arranged between the positioning bolt and the knob cover, and a gap is also arranged between the knob cover and the positioning bolt.

9. An underwater miniature flashlight as claimed in claim 4, characterized in that: The reflective module includes a reflective bowl, a light board, a translucent lens, a lamp holder waterproof sealing ring, and a top cover. The reflective bowl, the light board, and the translucent lens are all arranged in the first installation groove. The light board is electrically connected to the main control PCB board. The reflective bowl is installed on the light board. The translucent lens is blocked on the outside of the reflective bowl, and the translucent lens is located on the inside of the second opening; the top cover is fixed to the second opening, and the lamp holder waterproof sealing ring is arranged between the top cover and the second opening.

10. An underwater miniature flashlight as claimed in claim 4, characterized in that: The optical fiber interface module includes an optical fiber connector, an optical fiber cover, and an optical fiber waterproof sealing ring. The optical fiber connector is arranged in the fifth mounting groove, one end of the optical fiber connector is connected to the main control PCB board, and the other end extends into the optical fiber cover; the optical fiber cover is threadedly connected to the side wall of the fifth mounting groove and exposed in the fifth mounting groove, and the optical fiber waterproof sealing ring is arranged between the optical fiber cover and the side wall of the fifth mounting groove.

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