An adjustable height waterproof lighting device for hydraulic engineering

Abstract

The application relates to a lighting device, in particular to an adjustable high waterproof lighting device for water conservancy projects. The device comprises a counterweight base used for providing stable support on a possibly wet and slippery or uneven construction base; a telescopic rod member fixed upright on the counterweight base, the telescopic rod member can be adjusted and locked in the extension height through the cooperation of a bolt and a pin hole or a screw fastening mode; at least one lighting lamp installed at the top end or a side preset position of the telescopic rod member; and a ring-shaped main machine capable of automatically sliding along the vertical telescopic rod member. The device is provided with a buoyancy tank to provide buoyancy, so that the device can be lifted along with the water level change, thereby maintaining the equipment cabin containing a battery and a control circuit above the water level line, and realizing automatic and reliable waterproof protection.

Description

Technical Field

[0001] This application relates to lighting devices, and more particularly to an adjustable-height waterproof lighting device for hydraulic engineering projects. Background Technology

[0002] In the field of water conservancy engineering construction, on-site lighting equipment is crucial for ensuring the smooth progress of nighttime operations or maintenance. Traditional lighting solutions typically employ fixed lamp holder structures, mounting lighting fixtures on supports and providing power via batteries and control circuits in the base. While this design can meet basic lighting needs in general construction environments, its fixed structure makes it difficult to adjust flexibly after installation, making it particularly suitable for locations with stable terrain.

[0003] However, in water conservancy construction projects in water-prone areas, such as rivers, reservoirs, or dams, water levels often exhibit significant fluctuations, dynamically changing due to factors like tides, rainfall, or flood discharge. Existing fixed lighting installations reveal significant shortcomings in such environments: when water levels rise, the lamp holder base and its heavier components, such as batteries and control circuits, are easily submerged. While the lamp holder itself may be structurally stable and not easily tipped over, the batteries and control circuits are typically concentrated in the base to lower the center of gravity and enhance stability. Once submerged, they are highly susceptible to short circuits, corrosion, or permanent damage, thus affecting the normal functioning of the lighting. The main reason for this deficiency is that traditional designs do not adequately consider the impact of water level changes, the protection level of critical components such as batteries is low, and the fixed installation method lacks an adaptive adjustment mechanism. Currently, on-site personnel often cope with the risk of rising water by temporarily adding frames or using straps to lift the batteries. However, this method not only relies on manual operation, which is time-consuming and labor-intensive, but may also lead to equipment failure due to delays or improper operation during emergency construction, failing to meet the actual needs of water conservancy projects for efficient and reliable lighting.

[0004] To address the aforementioned issues, it is particularly important to develop a lighting device that can automatically adapt to changes in water level and effectively protect critical components. Utility Model Content

[0005] The purpose of this application is to overcome at least one deficiency in the existing technology and provide an adjustable-height waterproof lighting device for hydraulic engineering projects. This device addresses the technical problem of the battery and control system of lighting equipment being easily damaged by water immersion due to fluctuations in water level during construction in water-adjacent areas. The device utilizes a buoyancy chamber to provide buoyancy, allowing it to rise and fall with changes in water level. This ensures that the equipment compartment containing the battery and control circuitry is always kept above the water level, achieving automatic and reliable waterproof protection.

[0006] To achieve the above objectives, this application discloses an adjustable height waterproof lighting device for water conservancy projects. The device includes a counterweight base for providing stable support on potentially slippery or uneven construction foundations, a telescopic rod vertically fixed to the counterweight base, the telescopic rod being adjustable and locked in extension height by means of a pin and pin hole engagement or screw fastening, at least one lighting fixture installed at a preset position on the top or side of the telescopic rod, and a ring-shaped main unit that can automatically slide along the vertical telescopic rod.

[0007] Furthermore, the annular main unit has a through hole at its center, the diameter of which matches the outer diameter of the telescopic rod to ensure smooth axial movement of the main unit along the rod. Specifically, to achieve low-resistance, wear-resistant sliding, a low-resistance sliding ring is embedded in the inner wall of the through hole. This sliding ring is preferably made of a self-lubricating material, such as polytetrafluoroethylene or oil-impregnated nylon, and its function is to significantly reduce the sliding friction between the annular main unit and the telescopic rod, ensuring that the main unit can respond promptly to changes in buoyancy and slide smoothly.

[0008] To elaborate further, the annular main unit is internally divided into a lower buoyancy chamber and an upper equipment chamber by a sealed partition. The buoyancy chamber is a watertight hollow cavity, which can also be filled with closed-cell foam material to provide a calculated and set constant buoyancy. The upper equipment chamber is a sealed enclosure, with a sealing ring between the cover and the chamber body. Batteries and control circuit boards are fixedly installed inside the equipment chamber, and waterproof cable connectors are located on the outside of the chamber body. The control circuits are connected to lighting fixtures via cables extending from these connectors.

[0009] To ensure the reliability of the device, a limit and locking mechanism is also provided. A lower limit block is fixedly installed at the lower part of the telescopic rod to prevent the ring main unit from slipping. Correspondingly, an upper limit block can be installed at the upper part of the rod. In addition, an auxiliary locking component can be provided, such as a radially lockable friction clamp. When it is necessary to temporarily fix the ring main unit, the clamp can be tightened to lock it to the telescopic rod.

[0010] Through the coordinated operation of the aforementioned components, this device achieves water level self-adaptation capability based on physical principles. When the water level rises, buoyancy propels the main unit upward along the sliding ring; when the water level falls, the main unit slides down under the influence of gravity. This process requires no external intervention, effectively protecting the core electrical components.

[0011] The beneficial effects listed above are not exhaustive of all advantages. Other potential beneficial effects and detailed technical implementation methods will be further disclosed in the embodiments or other descriptive sections of this application. Attached Figure Description

[0012] A better understanding of various aspects of this disclosure will be achieved by reading the following detailed description in conjunction with the accompanying drawings. The positions, dimensions, and extents of the structures shown in the drawings, etc., do not always represent actual positions, dimensions, and extents. In the drawings: Figure 1 This is a schematic diagram of the structure of one embodiment disclosed in this application. Detailed Implementation

[0013] The present disclosure will now be described with reference to the accompanying drawings, which illustrate several embodiments of the present disclosure. However, it should be understood that the present disclosure can be presented in many different ways and is not limited to the embodiments described below; in fact, the embodiments described below are intended to make the disclosure more complete and to fully illustrate the scope of protection of the present disclosure to those skilled in the art. It should also be understood that the embodiments disclosed herein can be combined in various ways to provide further additional embodiments.

[0014] It should be understood that the same reference numerals denote the same elements in all the accompanying drawings. For clarity, the dimensions of certain features may be modified in the drawings.

[0015] It should be understood that the terminology used in this specification is for describing specific embodiments only and is not intended to limit this disclosure. All terms used in this specification (including technical and scientific terms) have the meanings commonly understood by those skilled in the art, unless otherwise defined. For the sake of brevity and / or clarity, techniques, methods, and apparatus known to those skilled in the art may not be discussed in detail; however, where appropriate, such techniques, methods, and apparatus should be considered part of this specification.

[0016] Unless otherwise specified, the singular forms “a,” “the,” and “the” used in this specification include the plural forms. The terms “comprising,” “including,” and “containing” used in this specification indicate the presence of the claimed feature but do not exclude the presence of one or more other features. The term “and / or” used in this specification includes any and all combinations of one or more of the relevant listed items.

[0017] See attached document Figure 1 In one specific embodiment of this application, the adjustable height waterproof lighting device for water conservancy projects mainly consists of four major components: a counterweight base 1, a telescopic rod 2, a lighting fixture 3, and a ring-shaped host 4, which work together to form a complete adaptive system.

[0018] The counterweight base 1 serves as the fixed foundation of the device. It is cast from C30 concrete and has threaded carbon steel anchor bolts embedded inside.

[0019] The telescopic rod 2 is made of two sections of 304 stainless steel round tubes with successively decreasing diameters. A silicone rubber sealing ring is set between adjacent tube sections. The height can be adjusted and locked by spring pins passing through the tube wall and matching pin holes of different heights. The bottom end of the thickest section is fastened to the anchor bolts of the counterweight base through a flange.

[0020] Lighting fixture 3 is an IP67 protected LED floodlight, which is mounted on the top of a telescopic pole via a universal adjustable bracket.

[0021] As a core functional component, the annular main unit 4 is slidably mounted on the middle section of the telescopic rod 2. The annular main unit 4 is strictly separated into the lower buoyancy chamber and the upper equipment chamber by an annular ABS partition. A low-resistance sliding ring made of polytetrafluoroethylene is interference-fitted into the central through hole to ensure that the main unit can slide smoothly along the rod.

[0022] Furthermore, the mass of the counterweight base 1 is designed to be no less than 150 kg to ensure the overall stability of the device under the impact of water flow with a velocity of less than 1 m / s.

[0023] Each section of the telescopic pole 2 has a wall thickness of 1.5 mm, and the connection between its lowest end and the flange is coated with an epoxy asphalt anti-corrosion layer. The power supply for the lighting fixture 3 comes from the battery in the equipment compartment. The waterproof cable connecting the lighting fixture is introduced from the waterproof joint at the top of the telescopic pole 2 and extends downward through the internal cavity of the pole. This is to protect the cable from external mechanical damage and environmental corrosion.

[0024] Based on this, the structure of the annular main unit 4 needs to be described in detail. Its buoyancy chamber is a closed annular cavity made of high-density polyethylene through rotational molding. The design of this cavity to displace water volume is calculated to be 1.8 times the total weight of the annular main unit (including all internal components), thereby providing sufficient net buoyancy.

[0025] The equipment compartment's body and cover are both made of high-density polyethylene. A rectangular sealing groove is machined at the joint surface, with fluororubber O-rings embedded within the groove. These are secured with multiple circumferentially distributed stainless steel bolts to achieve a seal. Inside the equipment compartment, a mounting plate is fixed with screws. This plate houses a lithium-ion battery pack and a circuit control board integrating charge / discharge management, light control sensing, and a timer switch. The circuit control board itself is encapsulated in epoxy resin, a standard existing technology for electronic protection.

[0026] A waterproof cable connector is installed on the side wall of the equipment compartment for leading out cables to the lighting fixture 3 and possibly external solar panels.

[0027] Subsequently, the implementation method of the low-resistance sliding ring is as follows: the ring body is machined from polytetrafluoroethylene (PTFE) rods with a friction coefficient of less than 0.1, and its outer diameter is press-fitted to the central through hole of the annular main unit 4 using an interference fit. A 1 mm single-sided gap is designed between the inner diameter of the sliding ring and the outer diameter of the telescopic rod 2. The purpose of this size design is to minimize the sliding resistance while utilizing the self-lubricating properties of PTFE to ensure reliable operation in environments with a slight presence of mud and sand.

[0028] Understandably, if higher load and durability are required, the sliding ring can be replaced with a deep groove ball bearing with a seal, which is a well-known technology in the mechanical field.

[0029] To ensure the reliability of the device under various operating conditions, a limiting and locking mechanism is essential. Near the bottom of the middle section of the telescopic rod 2, a rubber limiting ring with an outer diameter larger than the diameter of the central through hole of the annular main unit 4 is fixedly fitted as a lower limiter to prevent the main unit from slipping off.

[0030] Correspondingly, a similar rubber limiting ring is fitted below the top of the tube section as an upper limit device. In addition, an auxiliary locking component is specifically an open stainless steel friction clamp, which is installed on the top of the equipment compartment by two bolts; when it is necessary to temporarily fix the ring main unit at a certain height, the bolts on the clamp can be tightened with a wrench to generate radial clamping force, locking it with the telescopic rod 2 and preventing accidental slippage caused by wind, waves or vibration.

[0031] The complete working process of this lighting device is as follows: Before deployment, the height of the telescopic rod 2 is adjusted according to the lighting range requirements and locked with a pin. The entire device is then hoisted to the designated construction area, at which point the ring-shaped main unit 4 rests on the lower limit ring under gravity. When the ambient light intensity at night is lower than the set value of the light control module, the circuit is automatically switched on, and the LED floodlights begin to illuminate.

[0032] If the water level in the construction area rises, the water gradually submerges the buoyancy chamber and generates upward buoyancy. When the buoyancy exceeds the weight of the main unit, the annular main unit 4 floats smoothly along the sliding ring guide, dynamically keeping the equipment chamber above the water surface. When the water level drops, the annular main unit 4 slides down under the influence of gravity. The entire process is completed automatically based on physical principles, requiring no external energy or human intervention. This achieves continuous waterproof protection for the core electrical components and significantly improves the reliability and safety of construction lighting equipment in dynamic hydrological environments.

[0033] In this specific embodiment, the structure, connection relationship, and working process of the adjustable-height waterproof lighting device for water conservancy projects involved in this application have been described in detail. It is understood that certain conventional technical details involved in achieving the purpose of this application, such as, but not limited to, the specific electrochemical system of the lithium-ion battery pack, the selection and wiring logic of components in the circuit control board, the chip packaging structure of the LED floodlight, and the precise dimensional tolerances of standard parts such as bolts and sealing rings, are all common knowledge or existing technology known to those skilled in the art. Those skilled in the art can select suitable implementation schemes from the prior art to achieve the application based on actual application scenarios and conventional design requirements without creative effort. Any conventional selection, substitution, or optimization of these known technical details based on the core inventive concept of this application should be considered to be included within the scope of protection sought by this application. The detailed description herein is intended to clearly disclose the technical solution of this application, and not to limit its scope of protection in any way. The scope of protection of this application should be determined by the claims.

Claims

1. A height-adjustable waterproof lighting device for water conservancy projects, characterized in that, include: Counterweight base, which is used to provide stable support on construction foundations that may be slippery or uneven; The telescopic rod is vertically fixed on the counterweight base. The extension height of the telescopic rod can be adjusted and locked by means of a pin and a pin hole or by screw fastening. At least one lighting fixture is installed at a predetermined position on the top or side of the telescopic rod; The ring-shaped main unit can automatically slide along the vertical telescopic rod; The annular main unit has a through hole at its center, and the diameter of the through hole is adapted to the outer diameter of the telescopic rod. A low-resistance sliding ring is embedded in the inner wall of the through hole; The interior of the annular main unit is divided into a lower buoyancy chamber and an upper equipment chamber by a sealed partition. The buoyancy chamber is a watertight hollow cavity, or filled with closed-cell foam material; The equipment compartment is a sealed enclosure, and a sealing ring is provided between the compartment cover and the compartment body; The equipment compartment contains a fixed battery and a control circuit board. A waterproof cable connector is provided on the outside of the equipment compartment, and the control circuit is connected to the lighting fixture through a cable led out from there.

2. The adjustable-height waterproof lighting device for water conservancy projects according to claim 1, characterized in that, A lower limit block is fixedly installed at the lower part of the telescopic rod to prevent the annular main unit from slipping.

3. The adjustable-height waterproof lighting device for water conservancy projects according to claim 2, characterized in that, An upper limit block is provided on the upper part of the telescopic rod.

4. The adjustable-height waterproof lighting device for water conservancy projects according to any one of claims 1 to 3, characterized in that, An auxiliary locking component is also included.

5. The adjustable-height waterproof lighting device for water conservancy projects according to claim 4, characterized in that, The auxiliary locking component is a radially lockable friction clamp. When it is necessary to temporarily fix the annular main unit, the clamp is tightened to lock it to the telescopic rod.

6. The adjustable-height waterproof lighting device for water conservancy projects according to claim 1, characterized in that, The low-resistance sliding ring is made of a self-lubricating material.

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