Diesel engine lighting lamp support and anti-falling alarm device

By designing a diesel engine lighting bracket with multi-hole position adjustment and angle rotation, as well as a fall prevention alarm system, the problems of inflexible installation and lack of early warning were solved, enabling flexible installation and proactive early warning, and improving the safety and stability of diesel engine maintenance operations.

CN122258335APending Publication Date: 2026-06-23HUDONG HEAVY MACHINERY (ZHENJIANG) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HUDONG HEAVY MACHINERY (ZHENJIANG) CO LTD
Filing Date
2026-03-24
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing diesel engine lighting brackets are inflexible in installation, easily interfere with surrounding cables and pipes, have limited installation space, cannot meet various lighting needs, and lack a detachment warning function, leading to safety hazards.

Method used

A device was designed that includes a welding base, an adjustable support, a lighting mounting bracket, and a fall protection alarm system. Through multi-hole position adjustment and angle rotation, interference is avoided, and an audible and visual alarm is triggered in the event of a fall, ensuring a stable installation.

Benefits of technology

It achieves flexible installation adaptability, avoids interference and detachment, provides proactive early warning, and improves the safety and stability of diesel engine maintenance operations.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses a diesel engine lighting bracket and a fall-prevention alarm device, belonging to the technical field of diesel engine auxiliary equipment. The device includes a welded base, an adjustable support, and a lighting bracket. The welded base is fixed to the diesel engine's steel structure; the adjustable support connects to the base via a bottom slotted hole, allowing for angle adjustment, and its rod has multiple height adjustment holes; the lighting bracket is inserted into the adjustable support and its height is locked by a fixing pin, with arc-shaped structures at both ends for securing the lighting fixture. The core innovation of this invention lies in the integration of a fall-prevention alarm system: a fall-impact rod is installed on the lighting bracket, and a pressure-sensitive sensor is installed at the bottom of the adjustable support; when the bracket falls due to the failure of the fixing pin, the impact rod slides down the longitudinal slotted groove on the side of the support and impacts the sensor, immediately triggering an audible and visual alarm. This invention integrates flexible angle and height adjustment functions and provides early warning of bracket detachment, greatly improving installation adaptability and maintenance safety.
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Description

Technical Field

[0001] This invention relates to the field of diesel engine lighting equipment technology, specifically to a diesel engine lighting bracket and a fall arrestor alarm device, which is particularly suitable for fixing and protecting the lighting equipment of diesel engines in environments such as ships and power plants. Background Technology

[0002] Diesel engines play a vital role in many fields, including marine propulsion and land-based power plant generators. In some cases, lighting equipment needs to be installed on or around the diesel engine for ease of operation, maintenance, and personnel safety, especially in large marine diesel engines where the engine room is too large to provide sufficient lighting near the main engine, necessitating the addition of lighting on the engine itself. Driven by carbon emission requirements, diesel engine technology is constantly being updated and iterated, increasing system complexity and the use of more electronic components in the control system. Crew members require clear lighting assistance during routine inspections, troubleshooting, and maintenance. Good lighting reduces operational errors and allows for precise viewing of the status of various parts, ensuring timely detection and resolution of problems and stable engine operation. However, existing diesel engine lighting brackets have some shortcomings, such as inflexible installation methods that frequently interfere with surrounding cable trays and conduits; limited installation space that cannot accommodate different lighting needs; and improper installation or bracket detachment. Summary of the Invention

[0003] To address the problems of inflexible installation, easy interference with surrounding pipelines, insufficient stability, and lack of fall warning function in existing diesel engine lighting brackets, this invention provides a diesel engine lighting bracket and a fall prevention alarm device to ensure the lighting needs and personnel and equipment safety during diesel engine maintenance operations.

[0004] To achieve the above objectives, the technical solution of the present invention is as follows: This invention provides a diesel engine lighting bracket and a fall arrest alarm device, characterized in that it comprises: A welding base, which is fixed to the steel structure of the diesel engine, is provided with multiple mounting holes; An adjusting support member has its end connected to the mounting hole of the welding base via fasteners, and the adjusting support member has multiple sets of height adjustment holes on its rod. A lighting mounting bracket is telescopically inserted into the adjustable support and locked at different heights by engaging with the height adjustment hole via a fixing pin. Fall protection alarm system, including: A pressure-sensitive sensor is fixedly installed on the inner bottom of the adjustment support; A drop impact rod is fixedly installed on the upper part of the lighting fixture mounting bracket, with its impact head pointing vertically downwards and directly facing the trigger surface of the pressure sensor; The adjusting support has a longitudinal waist-shaped groove on its side, through which the fall impact rod passes. When the lighting fixture falls due to fixation failure, the fall impact rod slides down the longitudinal waist-shaped groove and impacts the pressure sensor, triggering an audible and visual alarm.

[0005] Furthermore, the end of the adjusting support is provided with two sets of waist-shaped holes, which are connected to the welding base by bolts, so that the adjusting support can rotate about the bolt as an axis to adjust its angle before fixing.

[0006] Furthermore, the two ends of the lighting mounting bracket are constructed in an arc shape to form a snap-fit ​​with the hook on the back of the lighting lamp, so as to prevent the lighting lamp from coming off laterally when the ship is rocking.

[0007] Furthermore, the trigger surface of the pressure sensor is positioned upwards, forming a perpendicular collision relationship with the impact head of the falling impact rod.

[0008] Furthermore, the pressure-sensitive sensor is an audible and visual alarm sensor.

[0009] Furthermore, after the fixing pin is removed, the lighting fixture mounting bracket is allowed to undergo continuous height sliding adjustment within the adjusting support.

[0010] The working process of this invention is as follows: The fall-collision rod is vertically installed on the lighting fixture mounting bracket, with its impact head facing the pressure-sensitive sensor below. When the lighting fixture mounting bracket tends to fall due to wear or failure of the fixing pin, the bracket will drive the fall-collision rod down along the vertical waist-shaped groove on the side of the adjusting support. The head of the fall-collision rod will strike the pressure-sensitive sensor at the bottom. After the sensor is triggered, it immediately issues an audible and visual alarm signal, reminding the crew to perform timely inspection and tightening, thereby providing early warning before an accident occurs and avoiding secondary dangers such as cable breakage and leakage caused by the complete detachment of the lighting fixture.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: 1) The bracket allows for angle rotation via a slotted hole and height adjustment via multiple sets of holes, enabling it to be installed adaptably to the complex spatial environment around the diesel engine, effectively avoiding pipeline interference and meeting various lighting needs. The arc-shaped end design of the lighting bracket effectively prevents the lighting lamps from falling off during ship swaying; the overall rigid connection structure ensures the long-term stability of the bracket under vibration.

[0012] 2) It integrates a mechanical fall arrest alarm device. It can issue an alarm the moment the support becomes loose, realizing the transformation from "passive failure" to "active early warning", providing valuable emergency response time for the crew, greatly improving the safety of maintenance operations, and effectively preventing personal injury and equipment damage that may be caused by falling lights.

[0013] 3) The entire device has a compact structure, common and low-cost components, and is easy to install and maintain, making it very suitable for use in diesel engine compartments with limited space and complex environments. Attached Figure Description

[0014] Figure 1 This is an exploded view of the diesel engine lighting bracket and fall arrestor alarm device of the present invention; Figure 2 This is a diagram showing the usage status of the diesel engine lighting bracket and fall prevention alarm device of the present invention. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments. The features of the present invention will be illustrated and described through the following embodiments, which are given by way of example only with reference to the accompanying drawings.

[0016] Please see Figures 1 to 2 , Figure 1 This is an exploded view of the diesel engine lighting bracket and fall arrestor alarm device of the present invention. Figure 2 This is a diagram illustrating the usage of the diesel engine lighting bracket and fall arrestor alarm device of the present invention. As shown in the figure, the welding base 1 is fixedly connected to the diesel engine bracket by welding. The bottom of the adjusting support 2 is aligned with the welding base 1. Using the two sets of oblong holes at the bottom of the adjusting support 2 and the matching bolts 5, the adjusting support 2 can be pre-rotated to the required angle to accommodate the narrow space around the diesel engine and avoid cable trays and pipelines. The bolts 5 are initially tightened, but not completely locked, so that fine adjustments can be made in subsequent steps.

[0017] The side of the adjusting support 2 has multiple through holes of different heights, and a longitudinal waist-shaped groove is provided in the longitudinal direction.

[0018] Insert the lighting fixture mounting bracket 3 into the adjusting support 2. Slide the lighting fixture mounting bracket 3 up and down according to the site lighting requirements and obstacle avoidance requirements, aligning its mounting holes with the corresponding mounting holes on the adjusting support 2. Then, use the fixing pin 6 to pass through the aligned holes and securely lock the lighting fixture mounting bracket 3 at that height.

[0019] Install a fall arrestor 7 on the upper part of the lighting fixture mounting bracket 3. During installation, ensure that the impact head of the fall arrestor 7 is vertically downward. Simultaneously, the fall arrestor 7 must pass through the longitudinal slot on the side of the adjusting support 2. This slot provides a vertical guide channel for the fall arrestor 7 and limits its normal operating range. Install a pressure sensor 4 at the bottom of the adjusting support 2. After installation, verify that the impact head of the fall arrestor 7 is accurately suspended directly above the trigger surface of the pressure sensor 4, with an appropriate gap between them. This gap ensures that the bracket will not falsely trigger an alarm during normal operation, and will only trigger immediately upon the occurrence of a fall.

[0020] After all mechanical installations are completed, the bolts 5 connecting the welded base 1 and the adjusting support 2 are finally tightened completely to ensure the stability of the entire support structure.

[0021] Functional testing: A simulated fall scenario can be manually performed by slightly loosening the fixing pin 6, causing the lighting mounting bracket 3 to drop slightly along the collision rod 7. This verifies whether the rod can smoothly slide down the waist-shaped groove and reliably trigger the pressure sensor 4 to issue an audible and visual alarm signal. After successful testing, return the rod to its original position and lock it securely.

[0022] The lighting unit is attached to the arc-shaped structures at both ends of the lighting mounting bracket 3 via hooks on its back. This arc-shaped design forms a self-locking latch with the hooks, effectively preventing the lighting unit from being thrown off laterally during ship roll or pitch.

[0023] The installation and commissioning process is now complete. This device not only allows for flexible adjustment of the lighting angle and height, but its built-in fall-prevention alarm system also forms an active safety barrier. It can issue an alarm the moment the fixing pin 6 fails due to long-term vibration and wear, providing valuable emergency response time for the crew and greatly improving the safety of maintenance operations.

[0024] Specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art can make various modifications or variations within the scope of the claims, which do not affect the essence of the present invention. Where there is no conflict, the above embodiments and features described therein can be combined with each other.

Claims

1. A diesel engine lighting bracket and a fall arrestor alarm device, characterized in that, include: A welding base (1) is fixed to the steel structure of the diesel engine, and the welding base (1) is provided with multiple mounting holes; The adjusting support (2) has its end connected to the mounting hole of the welding base (1) by fasteners, and the adjusting support (2) has multiple sets of height adjustment holes on its rod. The lighting mounting bracket (3) is telescopically inserted into the adjusting support (2) and engages with the height adjusting hole via a fixing pin (6) to lock at different heights; Fall protection alarm system, including: A pressure-sensitive sensor (4) is fixedly installed on the inner bottom of the adjustment support (2); The falling impact rod (7) is fixedly installed on the upper part of the lighting fixture bracket (3), with its impact head pointing vertically downwards and facing the trigger surface of the pressure sensor (4); The adjusting support (2) has a longitudinal waist-shaped groove on its side, and the falling impact rod (7) passes through the longitudinal waist-shaped groove. When the lighting fixture (3) falls due to fixation failure, the falling impact rod (7) slides down the longitudinal waist-shaped groove and hits the pressure sensor (4), triggering an audible and visual alarm.

2. The diesel engine lighting bracket and fall alarm device according to claim 1, characterized in that, The end of the adjusting support (2) is provided with two sets of waist-shaped holes, which are connected to the welding base (1) by bolts (5), so that the adjusting support (2) can rotate around the bolts (5) as the axis to adjust its angle before fixing.

3. The diesel engine lighting bracket and fall alarm device according to claim 1, characterized in that, The two ends of the lighting mounting bracket (3) are arc-shaped and are used to form a snap-fit ​​with the hook on the back of the lighting lamp to prevent the lighting lamp from coming off laterally when the ship is rocking.

4. The diesel engine lighting bracket and fall alarm device according to claim 1, characterized in that, The trigger surface of the pressure sensor (4) is set upward, forming a vertical collision relationship with the collision head of the falling collision rod (7).

5. The diesel engine lighting bracket and fall alarm device according to claim 4, characterized in that, The pressure-sensitive sensor (4) is an audible and visual alarm sensor.

6. The diesel engine lighting bracket and fall alarm device according to claim 1, characterized in that, After the fixing pin (6) is removed, the lighting mounting bracket (3) is allowed to make continuous height sliding adjustment within the adjusting support (2).