A waterproof type holder lighting device

Abstract

The utility model relates to underwater lighting technical field, especially a waterproof type holder lighting device, including the lighting casing, the turnover arm, the rotation holder, the rotation cover, the sealing end cover, waterproof joint that are sequentially connected, the lighting casing is fixedly connected with the turnover arm, the rotation holder includes two extension arms and base, and the turnover arm is sealed rotation connection between two extension arms through the pivot, and the rotation holder is sealed rotation connection with the rotation cover, the inner chamber of rotation holder is equipped with the turnover mechanism of turnover of lighting casing, and the rotation mechanism that makes lighting casing, turnover arm, rotation holder together 360 DEG rotation is equipped with in the rotation cover. The utility model has the advantages of compact structure, wide lighting range, high waterproof grade.

Description

Technical Field

[0001] This utility model relates to the field of underwater lighting technology, and in particular to a waterproof gimbal lighting device. Background Technology

[0002] Currently, in the field of large-space inspection, such as the internal inspection of large containers and pipelines, large-space endoscopes are often used as the core observation equipment. These endoscopes need to enter the space to be inspected through a specific diameter, such as a 100mm channel. In dry, well-lit environments, endoscopes can meet basic observation needs; however, in dark underwater environments, such as inside underwater containers or in deep-water equipment inspection scenarios, lighting devices are required to assist observation. In order to adapt to the 100mm diameter channel of the endoscope and the inspection scenario, the lighting device must meet the basic requirements of "small diameter, waterproof, and adjustable lighting angle," and must be used in conjunction with a telescopic rod to achieve underwater operation at depths of 5-8 meters.

[0003] In existing technologies, underwater lighting devices are mostly "fixed underwater lamps" (such as handheld lights for diving operations, underwater fixed lighting spotlights), or ordinary gimbal lighting devices (not specifically designed for underwater use). There is currently no integrated device specifically adapted to "large-space endoscopes with a 100mm diameter, underwater depth of 5-8 meters, and gimbal-type wide-area lighting." Adaptation is often achieved through "ordinary lighting devices and temporary sealing modifications," or by abandoning the wide-area lighting requirement and using only localized fixed lighting. Therefore, existing technologies still have the following shortcomings:

[0004] 1. Existing conventional pan-tilt lighting devices have loose structures (such as external motors and transmission components) and an overall diameter far exceeding 100mm, making it impossible for them to pass through the 100mm diameter channel with the endoscope into the space to be inspected. Temporarily modified small lighting devices can pass through the channel, but they lack pan-tilt adjustment functions, have limited lighting angles, and cannot achieve "wide-range viewing," ultimately limiting the lighting range.

[0005] 2. Existing sealing methods (such as ordinary O-rings) are only suitable for "static sealing" or "low-pressure static environment". However, underwater gimbal lighting devices need to achieve dynamic actions of "flipping and rotating" under "5-8 meters deep water pressure". Ordinary sealing structures are prone to failure due to "rotational friction wear" and "water pressure extrusion deformation", resulting in water leakage. Therefore, the sealing structure design cannot adapt to underwater pressure and rotation requirements. Utility Model Content

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution.

[0007] Design a waterproof pan-tilt lighting device, comprising a lighting housing, a flip arm, a rotating pan-tilt head, a rotating sleeve, a sealing end cap, and a waterproof connector connected in sequence. The lighting housing is fixedly connected to the flip arm. The rotating pan-tilt head includes two extension arms and a base. The flip arm is rotatably and sealed between the two extension arms via a rotating shaft. The rotating pan-tilt head is rotatably and sealed to the rotating sleeve.

[0008] The inner cavity of the rotating gimbal is provided with a flipping mechanism that flips the lighting housing, and the rotating sleeve is provided with a rotating mechanism that allows the lighting housing, the flipping arm, and the rotating gimbal to rotate together 360°.

[0009] Preferably, the flipping mechanism includes a flipping motor fixed inside the rotating gimbal, a drive gear connected to the output shaft of the flipping motor, and a transmission gear set meshing with the drive gear in one of the extension arms, the transmission gear set being connected to the rotating shaft.

[0010] Preferably, the rotating shaft and the two extension arms, as well as the rotating gimbal and the rotating sleeve, are connected in a sealed rotational manner through bearings and rotating glide rings, respectively.

[0011] Preferably, the rotating mechanism includes a rotary motor, a rotary gear connected to the output shaft of the rotary motor, and an internal gear ring that is fitted together with the rotating sleeve. The rotary gear meshes with the internal gear ring. A motor mounting base is rotatably connected inside the rotating sleeve. The rotary motor is fixedly installed inside the motor mounting base, and the motor mounting base is fixedly connected to the rotating gimbal.

[0012] Preferably, a retaining ring for restricting the movement of the internal gear ring is provided at one end of the rotating sleeve near the sealing end cover, and the inner diameter of the retaining ring is smaller than the inner diameter of the internal gear ring.

[0013] Preferably, two symmetrically fitted mounting planes are provided on the outer circumferential surface of the internal gear ring and the inner wall of the rotating sleeve, respectively, so that the internal gear ring is fixed together with the rotating sleeve when it rotates.

[0014] Preferably, an air inlet is connected to the lighting housing.

[0015] Preferably, a connector fixing seat is connected between the sealing end cap and the waterproof connector, a connector is connected to one end of the connector fixing seat, and a sleeve is fitted between the connector and the fixing seat.

[0016] The beneficial effects of this utility model are as follows:

[0017] 1. This device adopts a compact structure consisting of "a sequentially connected lighting housing, a tilting arm, a rotating pan-tilt head, a rotating sleeve, a sealed end cap, and a waterproof connector". The tilting motor and transmission gear set are integrated into the inner cavity of the rotating pan-tilt head, and the rotating motor and internal gear ring are integrated into the rotating sleeve. There are no external redundant parts. It can be entered into the space to be tested along with a large-space endoscope through a 100mm small-diameter channel, breaking the limitation that "large volume means insufficient diameter".

[0018] 2. The connection points between the rotating shaft and the extension arm, and between the rotating gimbal and the rotating sleeve, adopt a combination structure of "bearings and rotating Glyd rings". The bearings reduce rotational friction, while the rotating Glyd rings provide a good seal during dynamic rotation, can withstand underwater pressure, and prevent water from seeping into the device and damaging the motor and conductive slip rings. Furthermore, the air inlet on the lighting housing can fill the housing with gas to create positive pressure. Even if there are tiny gaps in the housing, external water cannot seep in due to the "pressure difference between inside and outside". This double-sealing structure ensures stable underwater operation of the device and solves the problem that "existing sealing structures cannot balance rotation and waterproofing".

[0019] 3. The flipping mechanism of this application, through a transmission path of "flipping motor, drive gear, transmission gear set, and rotating shaft," drives the lighting housing to achieve multi-angle flipping, adapting to observation areas of different heights. The rotating mechanism, through the meshing transmission of "rotating motor, rotating gear, and internal gear ring," drives the lighting housing, flipping arm, and rotating pan-tilt head to rotate synchronously 360°. Combined with a 360° conductive slip ring to prevent wire entanglement, it achieves "all-around, no-dead-angle" illumination. The two mechanisms work together to cover all illumination angles of the space to be inspected, assisting the endoscope in achieving clear observation over a wide area and completely solving the problem of "limited illumination range of existing devices." Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the left-side structure of this utility model;

[0022] Figure 3 yes Figure 2 A schematic diagram of the cross-sectional structure along direction A;

[0023] Figure 4 yes Figure 2 A schematic diagram of the cross-sectional structure along direction B in the diagram;

[0024] Figure 5 This is a schematic diagram of the flipping trajectory of the lighting component;

[0025] Figure 6 This is a schematic diagram of the internal gear ring;

[0026] The components in the diagram are labeled as follows: 1. Lighting housing, 2. Inflation nozzle, 3. Flip arm, 4. Extension arm, 5. Base, 6. Rotating sleeve, 7. Sealing end cap, 8. Connector fixing seat, 9. Sleeve, 10. Waterproof connector, 11. Connector, 12. Lamp cover, 13. Lamp bead, 14. Rotating glyph, 15. Conductive slip ring, 16. Motor fixing seat, 17. Internal gear ring, 18. Fixing ring, 19. Bearing, 20. Flip motor, 21. Drive gear, 22. Transmission gear set, 23. Rotary motor, 24. Rotary gear, 25. Mounting plane. Detailed Implementation

[0027] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0028] Example 1

[0029] A waterproof pan-tilt lighting device, such as Figures 1 to 6 As shown, the lighting housing 1, the flip arm 3, the rotating pan-tilt head, the rotating sleeve 6, the sealing end cap 7, and the waterproof connector 10 are connected in sequence. The lighting housing 1 is fixedly connected to the flip arm 3. The rotating pan-tilt head includes two extension arms 4 and a base 5. The flip arm 3 is rotatably connected between the two extension arms 4 through a rotating shaft. The rotating pan-tilt head is rotatably connected to the rotating sleeve 6.

[0030] An inflation nozzle 2 is connected to the lighting housing 1. When the device needs to be used underwater, an appropriate amount of gas can be injected into the lighting housing 1 through the inflation nozzle 2, making the internal air pressure of the lighting housing 1 higher than the external underwater ambient air pressure, creating a pressure difference. After use, the gas inside the lighting housing 1 can also be released through the inflation nozzle 2, facilitating storage and transportation. The inflation nozzle 2 creates a positive pressure environment inside the lighting housing 1, further enhancing its waterproof performance. Even if there are tiny gaps in the lighting housing 1, external water is unlikely to enter, effectively protecting the lighting components inside and improving the safety and reliability of the device in underwater environments.

[0031] A connector fixing seat 8 is connected between the sealing end cap 7 and the waterproof connector 10. A connector 11 is connected to one end of the connector fixing seat 8. The connector 11 is used to connect with other components such as endoscopes, so as to facilitate assembly and use with this device. A sleeve 9 is fitted between the connector 11 and the fixing seat.

[0032] The rotating gimbal has a flipping mechanism inside its cavity that flips the lighting housing 1, and a rotating mechanism inside its rotating sleeve 6 that allows the lighting housing 1, flipping arm 3, and rotating gimbal to rotate 360° together. The flipping mechanism inside the rotating gimbal drives the lighting housing 1 to flip, and the rotating mechanism inside the rotating sleeve 6 drives the lighting housing 1, flipping arm 3, and rotating gimbal to rotate 360° together, thus achieving multi-dimensional adjustment of the lighting direction. The flipping mechanism and the rotating mechanism work together to achieve the flipping and 360° rotation adjustment of the lighting direction, which can comprehensively assist the endoscope in observing the surrounding situation in underwater dark environments and solve the problem of large-area viewing.

[0033] The flipping mechanism includes a flipping motor 20 fixed inside the rotating gimbal. A drive gear 21 is connected to the output shaft of the flipping motor 20. A transmission gear set 22, meshing with the drive gear 21, is located within one of the extension arms 4 and is connected to a rotating shaft. When the flipping motor 20 is started, the output shaft drives the drive gear 21 to rotate. The drive gear 21 meshes with the transmission gear set 22 within the extension arm 4, transmitting power to the transmission gear set 22. The transmission gear set 22 then drives the rotating shaft connected to it to rotate. The rotating shaft is connected to the flipping arm 3. When the rotating shaft rotates, it causes the flipping arm 3 and the lighting housing 1 fixed to the flipping arm 3 to flip together, thereby achieving the flipping adjustment of the lighting angle. The layout of the flipping motor 20, drive gear 21, and transmission gear set 22 is reasonable and integrated inside the rotating gimbal, without occupying additional external space.

[0034] The rotating shaft and the two extension arms 4, as well as the rotating gimbal and the rotating sleeve 6, are connected in a sealed rotational manner via bearings 19 and rotating glyphs 14, respectively. The rotating glyphs 14 have excellent sealing performance, effectively preventing external water and impurities from entering the device during rotation, while ensuring normal rotational operation and achieving a sealed rotational connection. The sealing effect of the rotating glyphs 14 significantly improves the device's waterproof performance, effectively preventing water from the underwater environment from entering the device and damaging electrical components, ensuring stable operation of the device at depths of 5-8 meters, and meeting the waterproof requirements of underwater lighting.

[0035] The rotating mechanism includes a rotary motor 23, a rotary gear 24 connected to the output shaft of the rotary motor 23, and an internal gear ring 17 that is engaged with the rotating sleeve 6. The rotary gear 24 meshes with the internal gear ring 17. A motor mounting base 16 is rotatably connected inside the rotating sleeve 6. The rotary motor 23 is fixedly mounted inside the motor mounting base 16, which is fixedly connected to the rotating gimbal. A 360° conductive slip ring 15 is connected to the conductive end of the rotary motor 23. When the rotary motor 23 is started, the output shaft drives the rotary gear 24 to rotate. The rotary gear 24 meshes with the internal gear ring 17 engaged with the rotating sleeve 6. Because the internal gear ring 17 is fixed to the rotating sleeve 6, the rotary gear 24 rotates around the internal gear ring 17 under the meshing action.

[0036] When the rotary motor 23 starts, its output shaft drives the rotary gear 24 to rotate. The rotary gear 24 meshes with the internal gear ring 17. Since the internal gear ring 17 is fixed to the rotating sleeve 6, the rotary gear 24 rotates around the internal gear ring 17 under meshing action. The rotary gear 24 drives the rotary motor 23 and the motor mounting base 16 to rotate together. The motor mounting base 16 then drives the rotating pan-tilt head, the tilting arm 3, and the lighting housing 1 to rotate 360° around the axis of the rotating sleeve 6, achieving all-round lighting adjustment. The 360° conductive slip ring 15 is connected to the conductive end of the rotary motor 23 to ensure that the motor continues to supply power during the 360° rotation and does not get tangled in the wires.

[0037] The 360° rotation is achieved by using gear meshing transmission, which has high transmission efficiency and large torque. It can stably drive the overall rotation of components such as the lighting housing 1, ensuring that the lighting range can be fully covered and further improving the convenience of endoscopic observation.

[0038] A retaining ring 18 is provided at one end of the rotating sleeve 6 near the sealing end cover 7 to restrict the movement of the internal gear ring 17, and the inner diameter of the retaining ring 18 is smaller than the inner diameter of the internal gear ring 17. After the internal gear ring 17 is installed in the rotating sleeve 6, the retaining ring 18 can block and limit the internal gear ring from the side near the sealing end cover 7, restricting the internal gear ring 17 from moving axially towards the sealing end cover 7 along the rotating sleeve 6, ensuring that the internal gear ring 17 is in a stable position inside the rotating sleeve 6. The setting of the retaining ring 18 effectively restricts the axial movement of the internal gear ring 17, preventing the internal gear ring 17 from shifting its position due to vibration, impact and other factors during the operation of the device, ensuring that the internal gear ring 17 and the rotating gear 24 always maintain a good meshing state, ensuring the stable and reliable transmission of the rotating mechanism, and avoiding transmission failure due to poor meshing that affects the lighting adjustment. No additional complex fixing structure is required; the axial limitation of the internal gear ring 17 can be achieved by the simple retaining ring 18. The structure is simple and low-cost, and it does not affect the installation and operating space of other components inside the rotating sleeve 6, meeting the compact design requirements of the device.

[0039] Two symmetrically fitted mounting surfaces 25 are provided on the outer circumferential surface of the internal gear ring 17 and the inner wall of the rotating sleeve 6, respectively. When the internal gear ring 17 rotates, it is fixed together with the rotating sleeve 6. When the internal gear ring 17 is installed into the rotating sleeve 6, the mounting surfaces 25 of the internal gear ring 17 and the rotating sleeve 6 are aligned. At this time, the internal gear ring 17 and the rotating sleeve 6 are circumferentially fixed through the engagement of the mounting surfaces 25. When the internal gear ring 17 is subjected to rotational force, due to the limiting effect of the mounting surfaces 25, the internal gear ring 17 will not rotate circumferentially relative to the rotating sleeve 6, but will remain synchronous with the rotating sleeve 6, ensuring a stable meshing relationship between the internal gear ring 17 and the rotating gear 24. The circumferential fixation of the internal gear ring 17 and the rotating sleeve 6 through the engagement of the symmetrical mounting surfaces 25 is a simple and reliable fixing method, which is convenient for installation and disassembly, and facilitates later maintenance and component replacement.

[0040] The working method of this utility model is as follows: The device is fixed to the end of the telescopic rod via the connector 11 to ensure a firm connection; the power supply line is connected through the waterproof connector 10, and the air pump is connected to the inflation nozzle 2 to pressurize the inside of the lighting housing 1 (in this embodiment, the pressure is about 180-200 kPa), filling it with dry gas to form an internal positive pressure, which is slightly higher than the external pressure corresponding to a water depth of 5-8 meters, further enhancing the waterproof performance of the lighting housing 1 and preventing external water from seeping in; after inflation is completed, the valve of the inflation nozzle 2 is closed. Then, the operator holds the telescopic rod and sends the "endoscope and this lighting device" together through the 100mm diameter channel into the underwater space to be tested, slowly lowering it to a depth of 5-8 meters. During the process, the position of the device is controlled by the telescopic rod to avoid collision with the equipment under test.

[0041] According to the observation requirements of the endoscope, the illumination angle is adjusted remotely (e.g., by connecting a motor via a control line): Starting the tilting motor 20 causes the drive gear 21 to rotate the transmission gear set 22, which in turn causes the rotating shaft and tilting arm 3 to tilt. The illumination housing 1 tilts synchronously up and down within a 90° range with the tilting arm 3, adapting to observation areas at different heights. Starting the rotating motor 23 causes the rotating gear 24 to mesh with the internal gear ring 17 fixed inside the rotating sleeve 6. Since the internal gear ring 17 is fixed to the rotating sleeve 6 via the "clamping plane 25 and fixing ring 18", the rotating gear 24 drives the motor mounting base 16 and the rotating gimbal to rotate synchronously, ultimately achieving a 360° circumferential rotation of the illumination housing 1, covering the entire observation area. The illumination device provides a stable light source through the LED beads 13. The light is diffused by the lamp cover 12 and illuminates the surrounding underwater environment. With the assistance of the light source, the endoscope achieves clear observation over a wide area. The operator can fine-tune the device position using the telescopic rod, and in conjunction with the illumination angle adjustment, complete the full-area inspection.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A waterproof pan-tilt lighting device, characterized in that, The device includes a lighting housing, a flip arm, a rotating pan-tilt head, a rotating sleeve, a sealed end cap, and a waterproof connector connected in sequence. The lighting housing is fixedly connected to the flip arm. The rotating pan-tilt head includes two extension arms and a base. The flip arm is rotatably connected between the two extension arms via a rotating shaft. The rotating pan-tilt head is rotatably connected to the rotating sleeve. The inner cavity of the rotating gimbal is provided with a flipping mechanism that flips the lighting housing, and the rotating sleeve is provided with a rotating mechanism that allows the lighting housing, the flipping arm, and the rotating gimbal to rotate together 360°.

2. The waterproof pan-tilt lighting device as described in claim 1, characterized in that: The flipping mechanism includes a flipping motor fixed inside a rotating gimbal. A drive gear is connected to the output shaft of the flipping motor. A transmission gear set that meshes with the drive gear is provided in one of the extension arms. The transmission gear set is connected to the rotating shaft.

3. The waterproof pan-tilt lighting device as described in claim 1, characterized in that: The rotating shaft and the two extension arms, as well as the rotating gimbal and the rotating sleeve, are connected in a sealed rotational manner through bearings and rotating glide rings, respectively.

4. The waterproof pan-tilt lighting device as described in claim 1, characterized in that: The rotating mechanism includes a rotary motor, a rotary gear connected to the output shaft of the rotary motor, and an internal gear ring that is fitted together with the rotating sleeve. The rotary gear meshes with the internal gear ring. A motor mounting base is rotatably connected inside the rotating sleeve. The rotary motor is fixedly installed inside the motor mounting base, and the motor mounting base is fixedly connected to the rotating gimbal.

5. The waterproof pan-tilt lighting device as described in claim 4, characterized in that: A retaining ring is provided at one end of the rotating sleeve near the sealing end cap to restrict the movement of the internal gear ring, and the inner diameter of the retaining ring is smaller than the inner diameter of the internal gear ring.

6. The waterproof pan-tilt lighting device as described in claim 5, characterized in that: Two symmetrically fitted mounting surfaces are provided on the outer circumferential surface of the internal gear ring and the inner wall of the rotating sleeve, respectively. When the internal gear ring rotates, it is fixed together with the rotating sleeve.

7. The waterproof pan-tilt lighting device as described in claim 1, characterized in that: An air inlet is attached to the lighting housing.

8. The waterproof pan-tilt lighting device as described in claim 1, characterized in that: A connector fixing seat is connected between the sealing end cap and the waterproof connector. A connector is connected to one end of the connector fixing seat, and a sleeve is fitted between the connector and the fixing seat.

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