Night search and rescue lighting device of rescue helicopter

Abstract

The utility model provides a night search and rescue lighting device of a rescue helicopter, and belongs to the technical field of lighting devices. Comprising an illuminating lamp; the horizontal vibration reduction assembly is arranged at the top of the illuminating lamp and comprises a base arranged at the top of the illuminating lamp, a connecting shaft is arranged between the base and the illuminating lamp, the connecting shaft is fixedly connected with the illuminating lamp, and a transmission plate is fixedly connected to the end, close to the interior of the base, of the connecting shaft; a main elastic piece is arranged on the side, close to the transmission plate, of the base. By arranging the horizontal vibration reduction assembly, when the illuminating lamp is disturbed by airflow, the connecting shaft swings along with the illuminating lamp, then the transmission plate is driven to move in the base, the acting force borne by the transmission plate is transmitted to the main elastic pieces, and the multiple main elastic pieces can conduct vibration reduction by means of elastic deformation of the main elastic pieces. The vibration energy can be effectively absorbed and buffered from multiple directions, the influence of vibration in the horizontal direction on the lighting device is remarkably reduced, and the service life of the lighting device can be prolonged.

Description

Technical Field

[0001] This utility model relates to the field of lighting device technology, and in particular to a nighttime search and rescue lighting device for rescue helicopters. Background Technology

[0002] Nighttime search and rescue lighting equipment for rescue helicopters is a device installed on rescue helicopters to provide illumination during search and rescue missions at night or in low visibility conditions. These lighting devices collectively provide strong support for nighttime search and rescue operations by rescue helicopters, improving the success rate and safety of search and rescue.

[0003] The existing lighting equipment can work relatively stably under normal flight conditions, has a certain degree of anti-interference capability and durability, and can provide continuous lighting services for a certain period of time, reducing the possibility of search and rescue operations being interrupted due to equipment failure.

[0004] However, in real-world applications, when helicopters encounter turbulence or perform maneuvering flight, the vibrations intensify. This can cause the lighting fixtures to sway noticeably in their mounting positions. Excessive vibration can damage the internal electronic and optical components of the fixtures, leading to their failure and shortening their lifespan.

[0005] Therefore, this application provides a nighttime search and rescue lighting device for rescue helicopters to meet the needs. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies and propose a nighttime search and rescue lighting device for rescue helicopters.

[0007] To achieve the above objectives, this utility model adopts the following technical solution: a nighttime search and rescue lighting device for rescue helicopters, comprising:

[0008] lighting;

[0009] A horizontal vibration damping assembly is placed on top of a lighting lamp. The horizontal vibration damping assembly includes a base disposed on top of the lighting lamp, a connecting shaft disposed between the base and the lighting lamp, the connecting shaft being fixedly connected to the lighting lamp, a transmission plate being fixedly connected to one end of the connecting shaft near the inside of the base, and a main spring plate disposed on one side of the base near the transmission plate. The main spring plates are arranged in a ring array inside the base along the central axis of the transmission plate.

[0010] A vertical vibration damping assembly is placed inside the horizontal vibration damping assembly and is used to increase the stability of the lighting lamp in the vertical direction. The vertical vibration damping assembly includes a damping telescopic rod fixed between the base and the transmission plate. A spring is sleeved on the damping telescopic rod, and the spring is fixedly connected to the base and the transmission plate.

[0011] Furthermore, a secondary spring is provided on the side of the base near the main spring, and the main spring and the secondary spring are connected in a driving connection.

[0012] The beneficial effects of adopting the above-mentioned further solution are: by adding a secondary spring, the secondary spring works in conjunction with the main spring to provide stronger vibration damping capabilities and avoid excessive vibration that could damage the lighting fixture.

[0013] Furthermore, both the main spring and the auxiliary spring have sliders fixedly connected to the side near the base, and the main spring and the auxiliary spring are slidably connected to the base through the sliders.

[0014] The beneficial effects of adopting the above-mentioned further solution are: the main spring and the auxiliary spring drive the slider to slide along the groove, so that the auxiliary spring and the slider can deform more smoothly, and the path during deformation is limited, thereby improving the stability of the main spring and the auxiliary spring during deformation.

[0015] Furthermore, the width of the main spring sheet and the auxiliary spring sheet is greater than the thickness of the transmission plate.

[0016] The beneficial effect of adopting the above-mentioned further solution is that it ensures that the main spring plate always keeps in contact with the transmission plate, and prevents the main spring plate from being stuck to the bottom of the transmission plate by its own elasticity after the transmission plate separates from the main spring plate.

[0017] Furthermore, a reserved groove is provided on the side of the base near the connecting shaft, and the diameter of the inner wall of the reserved groove is larger than the diameter of the connecting shaft.

[0018] The beneficial effect of adopting the above-mentioned further solution is that: the reserved groove provides space for the inclined connecting shaft, which can drive the transmission plate to move and squeeze the main spring plate, thereby ensuring that the horizontal vibration damping component can work normally.

[0019] Furthermore, a snap-fit ​​plate is fixedly connected to one end of the connecting shaft near the reserved slot.

[0020] The beneficial effect of adopting the above-mentioned further solution is that a snap-fit ​​groove matching the snap-fit ​​plate is opened on the base. The snap-fit ​​plate follows the movement of the connecting shaft in the snap-fit ​​groove and limits the maximum movement distance of the connecting shaft, so as to avoid damage to the horizontal vibration damping component due to excessive movement of the connecting shaft and the transmission plate.

[0021] Furthermore, an elastic pad is fixedly connected to one end of the connecting shaft near the reserved groove.

[0022] The beneficial effects of adopting the above-mentioned further solution are: the elastic soft pad avoids hard contact between the connecting shaft and the base, reduces wear between the connecting shaft and the base, and improves the service life of the connecting shaft.

[0023] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0024] 1. By setting up horizontal vibration damping components, the main spring plates are installed around the transmission plate. When the lighting lamp encounters airflow disturbances or the helicopter is in autopilot flight, the connecting shaft will swing with the lighting lamp, thereby driving the transmission plate to move inside the base. At this time, the force on the transmission plate will be transmitted to the main spring plates. Multiple main spring plates can effectively absorb and buffer these vibration energies from multiple directions by their own elastic deformation, significantly reducing the impact of horizontal vibration on the lighting device. This design effectively solves the problem that excessive vibration of the lamp may damage the internal electronic and optical components of the lamp, which is very beneficial to extending the service life of the lighting device.

[0025] 2. By setting up vertical vibration damping components, the damping telescopic rod can flexibly adapt to the swing of the transmission plate. The damping telescopic rod works in conjunction with the spring to efficiently buffer the force borne by the lighting lamp and connecting shaft in the vertical direction. This design, in conjunction with the main spring plate, can buffer vibration from multiple dimensions, greatly ensuring the relative stability of the lighting lamp and further extending the service life of the lighting equipment. Attached Figure Description

[0026] Figure 1 This is a front view of the nighttime search and rescue lighting device for rescue helicopters according to this utility model;

[0027] Figure 2 This is a side sectional view of the horizontal vibration damping component in the night search and rescue lighting device for rescue helicopters of this utility model;

[0028] Figure 3 This is a structural diagram of the vertical vibration damping component in the night search and rescue lighting device for rescue helicopters of this utility model;

[0029] Figure 4 This is a side sectional view of the reserved slot in the night search and rescue lighting device for rescue helicopters of this utility model.

[0030] Figure Labels

[0031] 1. Lighting lamp;

[0032] 2. Horizontal vibration damping assembly; 21. Base; 22. Connecting shaft; 23. Transmission plate; 24. Main spring sheet; 25. Secondary spring sheet; 26. Slider; 27. Reserved slot; 28. Snap-fit ​​plate; 29. ​​Elastic pad;

[0033] 3. Vertical vibration damping assembly; 31. Damping telescopic rod; 32. Spring. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] like Figures 1-4 As shown, this utility model provides a technical solution: a night search and rescue lighting device for rescue helicopters, including: a lighting lamp 1;

[0036] like Figures 1-3 As shown, a horizontal vibration damping component 2 is placed on top of the lighting lamp 1. The horizontal vibration damping component 2 includes a base 21 disposed on top of the lighting lamp 1. A connecting shaft 22 is disposed between the base 21 and the lighting lamp 1. The connecting shaft 22 is fixedly connected to the lighting lamp 1. A transmission plate 23 is fixedly connected to one end of the connecting shaft 22 near the inside of the base 21. A main spring plate 24 is disposed on one side of the base 21 near the transmission plate 23. The main spring plates 24 are arranged in a ring array inside the base 21 along the central axis of the transmission plate 23.

[0037] like Figures 2-4 As shown, the vertical vibration damping component 3 is placed inside the horizontal vibration damping component 2 and is used to increase the stability of the lighting lamp 1 in the vertical direction. The vertical vibration damping component 3 includes a damping telescopic rod 31 fixed between the base 21 and the transmission plate 23. A spring 32 is sleeved on the damping telescopic rod 31. The spring 32 is fixedly connected to the base 21 and the transmission plate 23. By installing the main spring plates 24 around the transmission plate 23, when the lighting lamp 1 is disturbed by airflow or the helicopter is in automatic maneuvering flight, the connecting shaft 22 swings with the lighting lamp 1 and drives the transmission plate 23 to move inside the base 21, so that the force on the transmission plate 23 is applied to the main spring plates 24. Multiple main spring plates 24 can effectively reduce the impact of airflow disturbance or helicopter automatic maneuvering from multiple directions through their own elastic deformation. Absorbing and buffering this vibration energy reduces the impact of horizontal vibration on the lighting device, solving the problem that excessive vibration may damage the internal electronic and optical components of the lamp, thus improving the service life of the lighting. By installing common ball joints at both ends of the damping telescopic rod 31 and fixing the ball joints to the damping telescopic rod 31 between the base 21 and the transmission plate 23 with screws, the damping telescopic rod 31 can be adapted to the swing of the transmission plate 23. Furthermore, the damping telescopic rod 31, in cooperation with the spring 32, can effectively buffer the vertical force on the lighting lamp 1 and the connecting shaft 22, and in cooperation with the main spring plate 24, buffer vibration from multiple directions, which helps to further ensure that the lighting lamp 1 can maintain relative stability and improve the service life of the lighting.

[0038] Furthermore, such as Figure 3 As shown, a secondary spring 25 is provided on the side of the base 21 near the main spring 24. The main spring 24 and the secondary spring 25 are connected by a transmission. By adding the secondary spring 25, the secondary spring 25 and the main spring 24 work together to provide stronger vibration damping capability and avoid excessive vibration that could cause the lighting lamp 1 to vibrate and be damaged.

[0039] Furthermore, such as Figure 3 As shown, a slider 26 is fixedly connected to the side of the main spring piece 24 and the auxiliary spring piece 25 near the base 21. The main spring piece 24 and the auxiliary spring piece 25 are slidably connected to the base 21 through the slider 26. By opening a groove on the inner side of the base 21 that matches the slider 26, when the main spring piece 24 and the auxiliary spring piece 25 are deformed by force, the main spring piece 24 and the auxiliary spring piece 25 drive the slider 26 to slide along the groove, so that the auxiliary spring piece 25 and the slider 26 can deform more smoothly and limit the path during deformation, thereby improving the stability of the main spring piece 24 and the auxiliary spring piece 25 during deformation.

[0040] Furthermore, such as Figure 3 As shown, the width of the main spring piece 24 and the auxiliary spring piece 25 is greater than the thickness of the transmission plate 23. By widening the width of the auxiliary spring piece 25 and the main spring piece 24, when the transmission plate 23 tilts due to vibration, it is ensured that the main spring piece 24 always remains in contact with the transmission plate 23, and the main spring piece 24 is locked to the bottom of the transmission plate 23 by its own elasticity after the transmission plate 23 and the main spring piece 24 separate.

[0041] Furthermore, such as Figure 4 As shown, a reserved groove 27 is provided on the side of the base 21 near the connecting shaft 22. The diameter of the inner wall of the reserved groove 27 is larger than the diameter of the connecting shaft 22. By opening the reserved groove 27, a space is reserved for the tilt of the connecting shaft 22. The connecting shaft 22 can drive the transmission plate 23 to move and squeeze the main spring plate 24, thereby ensuring that the horizontal vibration damping component 2 can work normally.

[0042] Furthermore, such as Figure 4 As shown, a snap-fit ​​plate 28 is fixedly connected to one end of the connecting shaft 22 near the reserved slot 27. By opening a snap-fit ​​slot on the base 21 that matches the snap-fit ​​plate 28, the snap-fit ​​plate 28 follows the movement of the connecting shaft 22 in the snap-fit ​​slot and limits the maximum movement distance of the connecting shaft 22, so as to avoid excessive movement of the connecting shaft 22 and the transmission plate 23, which would cause damage to the horizontal vibration damping component 2.

[0043] Furthermore, such as Figure 4As shown, an elastic pad 29 is fixedly connected to one end of the connecting shaft 22 near the reserved groove 27. By installing the elastic pad 29 on the connecting shaft 22 near the edge of the reserved groove 27, when the connecting shaft 22 tilts, the elastic pad 29 avoids hard contact between the connecting shaft 22 and the base 21, reduces wear between the connecting shaft 22 and the base 21, and improves the service life of the connecting shaft 22.

[0044] Working principle: such as Figures 1-4 As shown, when the helicopter encounters turbulence or maneuvers, the lighting lamp 1 will vibrate. At this time, the connecting shaft 22 swings with the lighting lamp 1 and drives the transmission plate 23 to move inside the base 21. This causes the force on the transmission plate 23 to be applied to the main spring plate 24. Multiple main spring plates 24 can effectively absorb and buffer this vibration energy from multiple directions through their elastic deformation, reducing the impact of horizontal vibration on the lighting device. When the main spring plate 24 is compressed, it pushes the auxiliary spring plate 25 to contract. The auxiliary spring plate 25 works in conjunction with the main spring plate 24 to provide stronger vibration damping. Simultaneously, the damping telescopic rod 31 can... It is able to adapt to the swing of the transmission plate 23 and effectively buffer the vertical force on the lighting lamp 1 and the connecting shaft 22. In turn, it works with the main spring plate 24 to buffer vibration from multiple directions. When the transmission plate 23 moves inside the base 21, the reserved groove 27 provides space for the movement of the connecting shaft 22. The elastic soft pad 29 on the connecting shaft 22 avoids hard contact between the connecting shaft 22 and the base 21, reducing wear between the connecting shaft 22 and the base 21. The snap plate 28 on the connecting shaft 22 limits the maximum movement distance of the connecting shaft 22, preventing the horizontal vibration damping component 2 from being damaged due to excessive movement of the connecting shaft 22 and the transmission plate 23.

[0045] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A nighttime search and rescue lighting device for rescue helicopters, characterized in that, include: lighting(1); A horizontal vibration damping assembly (2) is placed on top of a lighting lamp (1). The horizontal vibration damping assembly (2) includes a base (21) set on top of the lighting lamp (1). A connecting shaft (22) is provided between the base (21) and the lighting lamp (1). The connecting shaft (22) is fixedly connected to the lighting lamp (1). A transmission plate (23) is fixedly connected to one end of the connecting shaft (22) near the inside of the base (21). A main spring plate (24) is provided on one side of the base (21) near the transmission plate (23). The main spring plate (24) is arranged in a ring array inside the base (21) along the central axis of the transmission plate (23). A vertical vibration damping assembly (3) is placed inside the horizontal vibration damping assembly (2) and is used to increase the stability of the lighting lamp (1) in the vertical direction. The vertical vibration damping assembly (3) includes a damping telescopic rod (31) disposed between the base (21) and the transmission plate (23). A spring (32) is sleeved on the damping telescopic rod (31). The spring (32) is fixedly connected to the base (21) and the transmission plate (23).

2. The nighttime search and rescue lighting device for rescue helicopters according to claim 1, characterized in that, A secondary spring (25) is provided on the side of the base (21) near the main spring (24), and the main spring (24) and the secondary spring (25) are connected in a transmission manner.

3. The nighttime search and rescue lighting device for rescue helicopters according to claim 2, characterized in that, Both the main spring (24) and the auxiliary spring (25) are fixedly connected to a slider (26) on the side near the base (21), and the main spring (24) and the auxiliary spring (25) are slidably connected to the base (21) through the slider (26).

4. The nighttime search and rescue lighting device for rescue helicopters according to claim 2, characterized in that, The width of the main spring plate (24) and the auxiliary spring plate (25) is greater than the thickness of the transmission plate (23).

5. The nighttime search and rescue lighting device for rescue helicopters according to claim 1, characterized in that, A reserved groove (27) is provided on the side of the base (21) near the connecting shaft (22), and the diameter of the inner wall of the reserved groove (27) is larger than the diameter of the connecting shaft (22).

6. The nighttime search and rescue lighting device for rescue helicopters according to claim 5, characterized in that, A snap-fit ​​plate (28) is fixedly connected to one end of the connecting shaft (22) near the reserved slot (27).

7. The nighttime search and rescue lighting device for rescue helicopters according to claim 5, characterized in that, An elastic pad (29) is fixedly connected to one end of the connecting shaft (22) near the reserved groove (27).

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