Underwater searchlighting system for rubber boat

Abstract

The invention discloses an underwater searchlighting system for a rubber dinghy, and relates to the technical field of outdoor lighting. The radiating fins and the LED light-emitting unit are arranged in the shell, and the coaxial center and the annular double-lens group are matched. The two large-pitch lead screws are driven by the servo motor to independently adjust the lens distance, and continuous zooming of 10-120 degrees is achieved. The gap counteracting spring and the friction block structure are self-locking and shockproof. An invisible transparent / blue transparent double-color film is arranged in front of the light-emitting unit, spectrums are rapidly switched by means of a reel and a torsion spring, and the requirements of long-range emission of dark light and fine observation of white light are met. The radiating fins are directly immersed in water and passively cooled, the lighting effect is improved, and the service life is prolonged. The installation rod and the camera thread facilitate boat bottom, hand holding or camera loading. Wide-area illumination and long-distance light condensation are both considered, energy consumption is reduced, and the system is suitable for various scenes such as search and rescue, scientific research and underwater photography.

Description

Technical Field

[0001] The present invention relates to the technical field of outdoor lighting, and specifically relates to an underwater searchlight system for a rubber boat. Background Art

[0002] At present, the commonly used underwater searchlights for rubber boats or divers are mostly LED tube lights with a single optical channel and a fixed focal length. If it is necessary to balance near-distance floodlight and far-distance spotlight, it often relies on manual replacement of filters or carrying two sets of lamps separately; its beam angle is achieved by replacing the reflector cup or convex lens, and the adjustment means is cumbersome and requires shutdown operation. Under vibration, water pressure changes and surge impacts, in order to prevent self-rotation of the threaded focusing mechanism, which may cause beam deviation, the thread pitch is set very small, which will lead to a significant reduction in the focusing speed. The traditional lamp body is a sealed aluminum cylinder structure, and heat dissipation only relies on the convection of the internal heat sink and the outer surface of the shell, and cannot make full use of the surrounding cold water, resulting in a high chip junction temperature and a short lifespan. The so-called "energy-saving lighting equipment" mostly emphasizes constant current power supply or PWM dimming, but lacks a systematic energy-saving design in underwater application scenarios, and still has problems such as low optical utilization rate, time-consuming focusing, and high energy consumption, which restricts the lighting quality and operation efficiency. Summary of the Invention

[0003] To overcome the defects of the above-mentioned prior art, the present invention provides the following technical solution: An underwater searchlight system for a rubber boat, including two symmetrically and parallelly arranged first lead screws and second lead screws. A second floating bracket and a first floating bracket are arranged between the first lead screw and the second lead screw. The second floating bracket is in threaded transmission cooperation with the second lead screw, and the second floating bracket is slidably sleeved on the first lead screw. The first floating bracket is in threaded transmission cooperation with the first lead screw, and the first floating bracket is slidably sleeved on the second lead screw. The first lead screw and the second lead screw are both rotatably installed on a circular mounting plate. A reinforcing ring is fixedly installed on the circular mounting plate through a reinforcing ring bracket in an overhead manner, wherein the first lead screw and the second lead screw are rotatably installed between the reinforcing ring and the circular mounting plate. A second gap cancellation spring and a first gap cancellation spring are respectively sleeved around the second lead screw and the first lead screw, wherein both ends of the second gap cancellation spring are fixedly cooperated with the reinforcing ring and the second floating bracket, and both ends of the first gap cancellation spring are fixedly cooperated with the circular mounting plate and the first floating bracket; wherein an annular convex lens is coaxially and fixedly installed inside the circular mounting plate, and a central convex lens is coaxially and fixedly installed inside the annular convex lens. The first floating bracket is arranged between the second floating bracket and the circular mounting plate. A central concave lens coaxially arranged with the central convex lens is fixedly installed on the first floating bracket through a central concave lens bracket in an overhead manner. An annular concave lens coaxially arranged with the annular convex lens is fixedly installed inside the second floating bracket; wherein two driving parts are also fixedly installed on the circular mounting plate, and the two driving parts are respectively used to drive the first lead screw and the second lead screw to rotate.

[0004] Preferably, the circular mounting plate is fixedly mounted on the inner wall of the outer shell, the reinforcing ring is fixedly mounted on the inner wall of the adjusting cylinder, the outer shell and the adjusting cylinder are fixedly matched, an outer light-transmitting lens is fixedly and sealedly mounted on one end of the adjusting cylinder away from the outer shell, and the outer light-transmitting lens is fixedly matched with the reinforcing ring.

[0005] Preferably, a heat dissipation component is fixedly and sealedly installed on one side of the shell away from the adjusting cylinder, and the heat dissipation component is composed of a plurality of fins arranged in an equidistant circular array. A light-emitting unit is fixedly installed on one side of the heat dissipation component located on the inner side of the shell, and the fins on the heat dissipation component are used to dissipate heat for the light-emitting unit, wherein the light-emitting unit is coaxially arranged with the annular convex lens.

[0006] Preferably, a two-color light-transmitting film is arranged between the annular convex lens and the light-emitting unit, and the two ends of the two-color light-transmitting film are respectively wound on the active film reel and the passive film reel, and the active film reel and the passive film reel are both rotatably installed on the inner side of the outer shell, wherein a film driving motor is fixedly installed on the inner wall of the outer shell, and the output shaft of the film driving motor is fixedly matched with the active film reel, and a torsion spring energy storage component is arranged at the rotating connection between the passive film reel and the outer shell; the two-color light-transmitting film is composed of two sections of transparent films, one section is invisible and transparent (such as a car windshield, which can allow natural white light to pass through), and the other section is blue and transparent (such as blue sunglasses, which only allow blue light to pass through). Start the film drive motor, and the output shaft of the film drive motor drives the active film reel to rotate. The rotation of the active film reel will pull the passive film reel to rotate through the two-color light-transmitting film, and wind the two-color light-transmitting film wrapped on the passive film reel onto the active film reel. During this process, the torsion spring energy storage component is in a power storage state. When the output shaft of the film drive motor rotates in the opposite direction, the torque stored in the torsion spring energy storage component will drive the passive film reel to rotate, and then in turn wind the two-color light-transmitting film wrapped on the active film reel onto the passive film reel (a worm gear assembly is provided between the output shaft of the film drive motor and the transmission path of the active film reel).

[0007] Preferably, the driving part includes a limiting annular shell fixedly mounted on a circular mounting plate, and the inner wall of the limiting annular shell is coaxially rotatably mounted with a limiting rotating body, and the limiting rotating bodies in the two driving parts are coaxially fixedly transmitted with the corresponding first screw and second screw.

[0008] Preferably, two symmetrically arranged special-shaped grooves are provided on the limiting rotating body, and the special-shaped grooves are provided with a toggle surface, an inclined surface and an elastic component support surface, wherein a limiting friction block is frictionally contacted and matched between the inclined surface and the limiting annular shell, a toggle rod is provided between the limiting friction block and the toggle surface, the toggle rod is in contact and matched with the limiting friction block, and a motion gap is provided between the toggle surface and the limiting friction block.

[0009] Preferably, an elastic component is elastically installed between the limiting friction block and the supporting surface of the elastic component, and the elastic component is used to push the limiting friction block to move in the direction of the toggle rod; wherein the two toggle rods are fixedly installed on the toggle arm, and the toggle arm rotates with the end face center position of the limiting rotating body, and an annular shell sealing cover is also fixedly installed on the limiting annular shell, and a servo adjustment motor is fixedly installed on the annular shell sealing cover, and the output shaft of the servo adjustment motor passes through the annular shell sealing cover and is fixedly matched with the toggle arm.

[0010] Preferably, a mounting rod fixedly mounted on the outer surface of the housing in an easily disassembled manner and fixedly matched with the bottom of the rubber boat, and a quarter threaded hole for mounting a camera is also provided on the housing.

[0011] Preferably,.

[0012] The present invention has the following beneficial effects compared with the prior art: (1) The central convex-concave lens and the annular convex-concave lens of the present invention achieve independent axial fine-tuning through two threaded lead screws, which can be continuously controlled between 10° of spotlight and 120° of floodlight, and the beam shapes of the center and the edge do not interfere with each other; operators do not need to replace the lens, and can accurately set the light according to the target distance and range in real time, comprehensively improving the underwater positioning, search and shooting efficiency. The whole mechanism can also maintain the optical axis concentricity when the water depth fluctuates, significantly improving the contradiction of "bright near and dark far" or "bright far and dark near" of traditional single-focus lights; (2) The present invention uses a two-color film with alternating invisible transparent sections and blue transparent sections, combined with a worm gear reduction active reel and a torsion spring energy storage passive reel, which can complete the white light / blue light switching, avoiding the light loss caused by frequent filter replacement, and making full use of the low attenuation characteristics of blue light in the 470nm band underwater; then switch back to white light to observe details during the operation confirmation stage, realizing a truly energy-saving lighting strategy of light distribution and energy consumption on demand; (3) The first and second gap cancellation springs of the present invention provide axial preloading between the lead screw and the floating bracket to eliminate the return gap; the limiting friction blocks in the special-shaped grooves are controlled by the bidirectional lever and only enter the sliding friction under the drive of the servo motor, and are locked self-locked after stopping, which can resist the self-rotation caused by the hull vibration or water flow impact; it not only ensures the adjustment speed but also achieves the purpose of earthquake resistance; (4) The fins of the heat dissipation component of the present invention are directly exposed to the water body, and the thermal resistance is only 1 / 3 of the traditional closed shell-air-water secondary heat dissipation; and it avoids the waste of electric energy caused by high temperature reducing the flow. With the water flow brought by the ship speed, forced convection is formed between the fins, and even in the static underwater shooting state, it can rely on natural convection to maintain a safe temperature rise, truly realizing the passive energy-saving heat dissipation driven by hydrodynamic force; (5) The outer shell of the present invention is provided with quick-release mounting rods and camera threads, which can be quickly installed and uninstalled on the bottom of the boat, the hand-held bracket or the tripod; the central converging beam is responsible for long-distance searchlight and target locking, and the annular flood beam synchronously fills the bottom with large-area light, avoiding the phenomena of "field of view black hole" and "glare tunnel", improving the diver's space perception and the quality of the camera image. By synchronously or independently adjusting the two groups of lenses, it can meet the multi-scene requirements of search and rescue, ecological investigation, instrument reading, etc. in one mission, reduce the carried equipment, and reduce the overall energy and logistics costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0014] Figure 2 It is a schematic diagram of the structure of the heat dissipation component of the present invention.

[0015] Figure 3 It is a schematic diagram of the structure at the active reel of the film of the present invention.

[0016] Figure 4 It is a schematic diagram of the internal structure of the outer shell of the present invention.

[0017] Figure 5It is a schematic diagram of the structure of the two-color light-transmitting film of the present invention.

[0018] Figure 6 It is a schematic diagram of the structure of the gap compensation spring of the present invention.

[0019] Figure 7 It is a structural schematic diagram of the central concave lens of the present invention.

[0020] Figure 8 It is a schematic diagram of the structure of the limiting rotating body of the present invention.

[0021] Figure 9 For the present invention Figure 8 Schematic diagram of the structure at point A in the middle.

[0022] Figure 10 It is a schematic diagram of the structure of the driving part of the present invention.

[0023] In the figure: 101-housing; 102-adjusting cylinder; 103-film active reel; 104-film driving motor; 105-film passive reel; 106-light-emitting unit; 107-heat dissipation assembly; 108-outer light-transmitting lens; 109-mounting rod; 110-torsion spring energy storage assembly; 111-two-color light-transmitting film; 112-circular mounting plate; 113-reinforced circular ring bracket; 114-reinforced circular ring; 115-first screw rod; 116-second gap compensation spring; 117-first gap compensation spring; 118-second movable Bracket; 119-annular concave lens; 120-first movable bracket; 121-central concave lens bracket; 122-central concave lens; 123-central convex lens; 124-annular convex lens; 125-limiting annular shell; 126-servo adjustment motor; 127-annular shell sealing cover; 128-limiting rotating body; 129-sliding arm; 130-limiting friction block; 131-sliding rod; 132-inclined surface; 133-sliding surface; 134-elastic component; 135-elastic component support surface; 136-second screw. DETAILED DESCRIPTION

[0024] The following is combined with Figures 1-10 , and further illustrate the technical solution of the present invention through specific implementation methods.

[0025] The present invention provides an underwater searchlight system for a rubber boat, which includes two symmetrically and parallelly arranged first lead screws 115 and second lead screws 136. A second floating bracket 118 and a first floating bracket 120 are arranged between the first lead screw 115 and the second lead screw 136. The second floating bracket 118 is in threaded transmission cooperation with the second lead screw 136, and the second floating bracket 118 is slidably sleeved on the first lead screw 115. The first floating bracket 120 is in threaded transmission cooperation with the first lead screw 115, and the first floating bracket 120 is slidably sleeved on the second lead screw 136. The first lead screw 115 and the second lead screw 136 are both rotatably installed on a circular mounting plate 112. An enhanced circular ring 114 is fixedly installed on the circular mounting plate 112 in an elevated manner through an enhanced circular ring bracket 113. Among them, the first lead screw 115 and the second lead screw 136 are rotatably installed between the enhanced circular ring 114 and the circular mounting plate 112. Second gap cancellation springs 116 and first gap cancellation springs 117 are respectively sleeved around the second lead screw 136 and the first lead screw 115. Among them, both ends of the second gap cancellation spring 116 are fixedly fitted with the enhanced circular ring 114 and the second floating bracket 118, and both ends of the first gap cancellation spring 117 are fixedly fitted with the circular mounting plate 112 and the first floating bracket 120; among them, an annular convex lens 124 is coaxially and fixedly installed inside the circular mounting plate 112, and a central convex lens 123 is coaxially and fixedly installed inside the annular convex lens 124. The first floating bracket 120 is arranged between the second floating bracket 118 and the circular mounting plate 112. A central concave lens 122 coaxial with the central convex lens 123 is fixedly installed on the first floating bracket 120 in an elevated manner through a central concave lens bracket 121. An annular concave lens 119 coaxial with the annular convex lens 124 is fixedly installed on the inner side of the second floating bracket 118; among them, two driving parts are also fixedly installed on the circular mounting plate 112, and the two driving parts are respectively used to drive the first lead screw 115 and the second lead screw 136 to rotate. The circular mounting plate 112 is fixedly installed on the inner wall of the outer shell 101, and the enhanced circular ring 114 is fixedly installed on the inner wall of the adjustment cylinder 102. The outer shell 101 and the adjustment cylinder 102 are fixedly fitted. An outer side light-transmitting lens 108 is fixedly and sealedly installed at one end of the adjustment cylinder 102 away from the outer shell 101, and the outer side light-transmitting lens 108 is fixedly fitted with the enhanced circular ring 114. A heat dissipation component 107 is fixedly and sealedly installed on one side of the outer shell 101 away from the adjustment cylinder 102. The heat dissipation component 107 is composed of a plurality of fins arranged in an equidistant circular array. A light-emitting unit 106 is fixedly installed on the side of the heat dissipation component 107 located inside the outer shell 101. The fins on the heat dissipation component 107 are used to dissipate heat from the light-emitting unit 106. Among them, the light-emitting unit 106 is coaxial with the annular convex lens 124.A two-color light-transmitting film 111 is arranged between the annular convex lens 124 and the light-emitting unit 106. Both ends of the two-color light-transmitting film 111 are respectively wound around the film driving main reel 103 and the film driven reel 105. The film driving main reel 103 and the film driven reel 105 are both rotatably installed on the inner side of the housing 101. A film driving motor 104 is fixedly installed on the inner wall of the housing 101. The output shaft of the film driving motor 104 is fixedly engaged with the film driving main reel 103. A torsion spring energy storage assembly 110 is arranged at the rotational connection of the film driven reel 105 and the housing 101. The two-color light-transmitting film 111 is composed of two sections of transparent films. One section is invisible transparent (such as an automobile windshield, which can allow natural white light to pass through), and the other section is blue transparent (such as blue sunglasses, which only allow blue light to pass through). When the film driving motor 104 is started, the output shaft of the film driving motor 104 drives the film driving main reel 103 to rotate. The rotation of the film driving main reel 103 will pull the film driven reel 105 to rotate through the two-color light-transmitting film 111, and wind the two-color light-transmitting film 111 wound on the film driven reel 105 onto the film driving main reel 103. During this process, the torsion spring energy storage assembly 110 is in a state of storing energy. When the output shaft of the film driving motor 104 rotates in the reverse direction, the torsion stored in the torsion spring energy storage assembly 110 will drive the film driven reel 105 to rotate, and then wind the two-color light-transmitting film 111 wound on the film driving main reel 103 onto the film driven reel 105 (a worm and worm gear assembly is arranged between the transmission path of the output shaft of the film driving motor 104 and the film driving main reel 103).

[0026] The driving part includes a limiting annular housing 125 fixedly mounted on a circular mounting plate 112, and a limiting rotating body 128 is coaxially mounted on the inner wall of the limiting annular housing 125 for rotation. The limiting rotating bodies 128 in the two driving parts are coaxially fixedly driven with the corresponding first screw rod 115 and second screw rod 136. Two symmetrically arranged special-shaped grooves are provided on the limiting rotating body 128, and the special-shaped grooves are provided with a toggle surface 133, an inclined surface 132 and an elastic component support surface 135, wherein a limiting friction block 130 is frictionally contacted and matched between the inclined surface 132 and the limiting annular housing 125, and a toggle rod 131 is provided between the limiting friction block 130 and the toggle surface 133, and the toggle rod 131 is in contact with and matched with the limiting friction block 130, and a movement gap is provided between the toggle surface 133 and the limiting friction block 130. An elastic component 134 is elastically installed between the limiting friction block 130 and the elastic component support surface 135, and the elastic component 134 is used to push the limiting friction block 130 to move in the direction of the toggle rod 131; wherein the two toggle rods 131 are fixedly installed on the toggle arm 129, and the toggle arm 129 is rotatably matched with the end face center position of the limiting rotating body 128, and the limiting annular shell 125 is also fixedly installed with an annular shell sealing cover 127, and the annular shell sealing cover 127 is fixedly installed with a servo adjustment motor 126, and the output shaft of the servo adjustment motor 126 passes through the annular shell sealing cover 127 and is fixedly matched with the toggle arm 129. The outer surface of the housing 101 is fixedly installed with a mounting rod 109 that is fixedly matched with the bottom of the rubber boat in a manner that is easy to disassemble, and the housing 101 is also provided with a quarter threaded hole for mounting a camera.

[0027] The working principle of an underwater searchlight system for a rubber boat disclosed by the present invention is as follows: Fix the mounting rod 109 to the rubber boat or hold the mounting rod 109 (select according to the actual situation). Make the axial direction of the heat dissipation component 107 parallel to the moving direction of the rubber boat or the adjusting cylinder 102. When the underwater environment has good light (in the diving area during the day), place the invisible transparent section of the two-color light-transmitting film 111 between the light-emitting unit 106 and the annular convex lens 124. At this time, the light emitted by the light-emitting unit 106 will irradiate through the annular convex lens 124, the central convex lens 123, the central concave lens 122 on the first floating bracket 120, the annular concave lens 119 on the second floating bracket 118, and finally pass through the outer light-transmitting lens 108 and shoot into the water. According to the situation to be photographed (such as a diver observing the environment, reading an instrument dial, performing maintenance, taking pictures, locating a drowning person or a salvage target, observing plankton, conducting a fluorescence labeling experiment, investigating the reef ecosystem, etc.), select the positional relationship between the second floating bracket 118 and the first floating bracket 120 to adjust the diffusion angle (suitable for illuminating a large area at close range) and the condensing angle (suitable for long-distance searchlight and adapting to the dark environment of deep water) of the light emitted from the outer light-transmitting lens 108; when the underwater environment is dark, place the blue transparent section of the two-color light-transmitting film 111 between the light-emitting unit 106 and the annular convex lens 124 to make it produce blue light (or green light, the blue light wavelength is 470nm, and it can travel the farthest in water, up to 60 - 80m), which is more suitable for observation in low light. Compared with natural transparent white light, it is suitable for lighting and searching for objects in front, while natural white light can better see the color of the object being searched and is easier to obtain more information. During the actual operation process (under low light conditions), first use blue light for searchlight, and then use transparent natural white light for further searchlight observation.

[0028] By adjusting the relative position relationship between the annular concave lens 119 and the central concave lens 122, different lighting angles (beam angles) can be obtained. By adjusting the distance between the annular concave lens 119 and the annular convex lens 124, the beam angle of the light at the edge position of the light-emitting unit 106 (the beam shape is a circular tube shape) can be adjusted. By adjusting the distance between the central concave lens 122 and the central convex lens 123, the beam angle of the light at the axis position of the light-emitting unit 106 (the beam shape is a cylindrical shape) can be adjusted. Specifically, it is carried out by controlling the servo adjustment motor 126 in the corresponding drive unit. The two drive units control the independent rotation of the first screw rod 115 and the second screw rod 136 respectively, and then drive the corresponding second floating bracket 118 and the first floating bracket 120 to move along their axial direction. The second gap compensation spring 116 and the first gap compensation spring 117 are used to eliminate the movement gap between the second floating bracket 118 and the first floating bracket 120 during the movement process to improve the control accuracy. The specific control of the driving unit is to drive the toggle arm 129 to rotate through the output shaft of the servo adjustment motor 126, and the rotation of the toggle arm 129 drives the two toggle rods 131 to rotate. The toggle rod 131 toggle one of the limiting friction blocks 130 to move in the direction of the extrusion elastic component 134, and the limiting friction block 130 in the other limiting annular housing 125 will also move in the direction of the extrusion elastic component 134 under the direction of the friction force (at the same time, the other toggle rod 131 will contact the toggle surface 133, and then toggle the limiting rotating body 128 to rotate), which will increase the distance (trend) between the limiting friction block 130 and the inner wall of the limiting annular housing 125, thereby causing the limiting annular housing 125 and the limiting friction block 130 to be in a sliding friction state. The rotation of the limiting rotating body 128 will drive the corresponding first screw rod 115 or second screw rod 136 to rotate, thereby adjusting the displacement of the corresponding second floating bracket 118 and the first floating bracket 120, and then adjusting the degree of the corresponding beam angle. For example, the light at the edge of the light-emitting unit 106 passes through the annular convex lens 124 and the annular concave lens 119, and then forms a floodlight that diffuses outward, so that a larger illumination range can be obtained. At the same time, the light at the axial position of the light-emitting unit 106 passes through the central concave lens 122, and then obtains a parallel or even smaller focus, so as to enhance the intensity of the light beam and enable it to travel a longer distance underwater.In order to increase the driving and adjusting speed of the first screw rod 115 and the second screw rod 136, the pitch of the first screw rod 115 and the second screw rod 136 is set to be larger. Therefore, in the use environment, the presence of vibration will cause the first screw rod 115 and the second screw rod 136 to rotate. In order to prevent self-rotation, when the first screw rod 115 and the second screw rod 136 rotate (trend), the corresponding limiting rotating body 128 will be driven to rotate (trend). When the limiting rotating body 128 rotates in any direction, there will be a limiting friction block 130 that is subject to a friction force directed toward the dialing surface 133 (due to the symmetrical setting). At this time, the limiting friction block 130 will be stuck between the inner wall of the limiting annular shell 125 and the inclined surface 132 (the space gradually narrows), which will cause the limiting rotating body 128 to be unable to rotate in the limiting annular shell 125. Since the limiting annular shell 125 is fixed on the circular mounting plate 112, the limiting annular shell 125 and the limiting rotating body 128 cannot rotate, thereby preventing the first screw rod 115 and the second screw rod 136 from rotating due to external reasons. This solves the problem that, while achieving a large lighting range (wide-angle astigmatism is required (such as 120°), which causes the illumination per unit area to decay rapidly, photons are quickly absorbed and scattered underwater, and the effective lighting distance is greatly shortened), long-distance illumination (small-angle focusing is required (such as 10-20°), which results in: a narrow illuminated area; the area outside the underwater target is almost completely dark, and the range is insufficient) is also achieved. The corresponding shortcomings are compensated for. At the same time, because the heat dissipation component 107 is in contact with water, the light-emitting unit 106 can be directly cooled by water to ensure that the light-emitting unit 106 is at a suitable operating temperature. At the same time, the working energy consumption of the light-emitting unit 106 is reduced.

Claims

1. An underwater searchlight system for a rubber boat, characterized in that: It includes two symmetrically and parallelly arranged first lead screws (115) and second lead screws (136). A second floating bracket (118) and a first floating bracket (120) are arranged between the first lead screw (115) and the second lead screw (136). The second floating bracket (118) is in threaded driving cooperation with the second lead screw (136), the second floating bracket (118) is slidably sleeved on the first lead screw (115), the first floating bracket (120) is in threaded driving cooperation with the first lead screw (115), the first floating bracket (120) is slidably sleeved on the second lead screw (136). Both the first lead screw (115) and the second lead screw (136) are rotatably installed on a circular mounting plate (112). A reinforcing ring (114) is fixedly installed on the circular mounting plate (112) in an overhead manner through a reinforcing ring bracket (113). Among them, the first lead screw (115) and the second lead screw (136) are rotatably installed between the reinforcing ring (114) and the circular mounting plate (112). A second gap cancellation spring (116) and a first gap cancellation spring (117) are respectively sleeved around the second lead screw (136) and the first lead screw (115). Among them, both ends of the second gap cancellation spring (116) are fixedly cooperated with the reinforcing ring (114) and the second floating bracket (118), and both ends of the first gap cancellation spring (117) are fixedly cooperated with the circular mounting plate (112) and the first floating bracket (120).

2. The underwater searchlight system for an inflatable boat according to claim 1, characterized in that: Among them, an annular convex lens (124) is coaxially and fixedly installed inside the circular mounting plate (112), a central convex lens (123) is coaxially and fixedly installed inside the annular convex lens (124). The first floating bracket (120) is arranged between the second floating bracket (118) and the circular mounting plate (112). A central concave lens (122) coaxially arranged with the central convex lens (123) is fixedly installed on the first floating bracket (120) in an overhead manner through a central concave lens bracket (121). An annular concave lens (119) coaxially arranged with the annular convex lens (124) is fixedly installed inside the second floating bracket (118); among them, two driving parts are also fixedly installed on the circular mounting plate (112), and the two driving parts are respectively used to drive the first lead screw (115) and the second lead screw (136) to rotate; The circular mounting plate (112) is fixedly installed on the inner wall of the housing (101), the reinforcing ring (114) is fixedly installed on the inner wall of the adjusting cylinder (102), the housing (101) and the adjusting cylinder (102) are fixedly cooperated. An outer light-transmitting lens (108) is fixedly and sealingly installed at one end of the adjusting cylinder (102) away from the housing (101), and the outer light-transmitting lens (108) is fixedly cooperated with the reinforcing ring (114).

3. The underwater searchlight system for a rubber boat according to claim 2, characterized in that: A heat dissipation component (107) is fixedly and sealedly mounted on one side of the housing (101) away from the regulating cylinder (102); the heat dissipation component (107) is composed of a plurality of fins arranged in an equidistant circular array; a light-emitting unit (106) is fixedly mounted on one side of the heat dissipation component (107) located on the inner side of the housing (101); the fins on the heat dissipation component (107) are used to dissipate heat for the light-emitting unit (106); the light-emitting unit (106) is coaxially arranged with the annular convex lens (124).

4. The underwater searchlight system for a rubber dinghy according to claim 3, characterized in that: A two-color light-transmitting film (111) is arranged between the annular convex lens (124) and the light-emitting unit (106); two ends of the two-color light-transmitting film (111) are respectively wound around a film active reel (103) and a film passive reel (105); the film active reel (103) and the film passive reel (105) are both rotatably mounted on the inner side of the housing (101); a film drive motor (104) is fixedly mounted on the inner wall of the housing (101); an output shaft of the film drive motor (104) is fixedly matched with the film active reel (103); a torsion spring energy storage component (110) is arranged at the rotation connection between the film passive reel (105) and the housing (101); the two-color light-transmitting film (111) is composed of two sections of transparent films.

5. The underwater searchlight system for a rubber dinghy according to claim 4, characterized in that: The driving part comprises a limiting annular housing (125) fixedly mounted on a circular mounting plate (112); the inner wall of the limiting annular housing (125) is coaxially rotatably mounted with a limiting rotating body (128); the limiting rotating bodies (128) in the two driving parts are coaxially fixedly driven with the corresponding first screw rod (115) and second screw rod (136).

6. The underwater searchlight system for a rubber boat according to claim 5, characterized in that: The limiting rotating body (128) is provided with two symmetrically arranged special-shaped grooves, the special-shaped grooves being provided with a toggle surface (133), an inclined surface (132) and an elastic component supporting surface (135), wherein a limiting friction block (130) is frictionally contacted and matched between the inclined surface (132) and the limiting annular housing (125), a toggle rod (131) is provided between the limiting friction block (130) and the toggle surface (133), the toggle rod (131) is in contact and matched with the limiting friction block (130), and a movement gap is provided between the toggle surface (133) and the limiting friction block (130).

7. The underwater searchlight system for a rubber boat according to claim 6, characterized in that: An elastic component (134) is elastically mounted between the limiting friction block (130) and the elastic component support surface (135), and the elastic component (134) is used to push the limiting friction block (130) to move in the direction of the toggle rod (131); wherein the two toggle rods (131) are fixedly mounted on the toggle arms (129), and the toggle arms (129) are rotationally matched with the end face center position of the limiting rotating body (128); an annular housing sealing cover (127) is also fixedly mounted on the limiting annular housing (125), and a servo regulating motor (126) is fixedly mounted on the annular housing sealing cover (127), and the output shaft of the servo regulating motor (126) passes through the annular housing sealing cover (127) and is fixedly matched with the toggle arms (129).

8. An underwater searchlight system for a rubber boat according to claim 7, characterized in that: An installation rod (109) fixedly installed in a detachable manner is mounted on the outer surface of the outer shell (101) and is fixedly fitted with the bottom of the inflatable boat. A quarter-threaded hole for installing a camera is also provided on the outer shell (101).

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