Navigation-aiding signal lamp light source switching mechanism

Abstract

The utility model discloses a light source switching mechanism of a navigation-aid signal lamp. The light source switching mechanism comprises a turntable, a light emitter and a driving motor which are sequentially arranged from front to back, wherein the light emitting direction of the light emitter is forward; the driving motor is used for driving the turntable to rotate around the axis of the turntable; a plurality of optical filters with different colors are arranged on the turntable at intervals around the axis of the turntable; when the driving motor drives the rotating disc to rotate around the axis of the rotating disc, any optical filter can rotate to the front-back direction right facing the light emitting direction of the light emitter. The beneficial effects are that only one light emitter is arranged, after light emitted by the light emitter is filtered by different optical filters, light beams of different colors can be emitted, and then the light beams are led out through the arranged optical lens, so that the overall size and size of the device can be greatly reduced, and the device is light and not cumbersome, and is convenient to use. And the plurality of optical filters present different colors, so that rotation switching of the colors of the optical filters can be carried out at any time during specific use, and use is flexible.

Description

Technical Field

[0001] The utility model relates to the technical field of navigation aids, in particular to a light source switching mechanism for navigation signal lights. Background Art

[0002] According to Article 268 of the Rules for Air Traffic Management of Civil Aviation: "In case of failure of land-air radio communication, the tower controller shall use lights or signal flares to control the aircraft taking off, landing or operating in the airport maneuvering area." Among them, the divergence angle of the emission beam of the signal gun light is required to be not less than 1° and not more than 3°, and the intensity of each color light is not less than 6000 cd. The light emission signal requires free switching between stable output, flash output modes of red, green, and white, and one of the colors has the function of transmitting text information in Morse code.

[0003] As the current situation, most of the current signal lights for navigation are generally separately provided with three-color lights, namely red lights, green lights and white lights, which makes the whole lamp body large in size and not convenient to carry and operate.

[0004] In view of this, the inventor of this patent, based on experience, through in-depth thinking about the problems encountered in work, consulting a large number of scientific research materials and documents, and through retrieval and novelty search, gradually conceived and designed this application to solve related technical problems. Summary of the Utility Model

[0005] The utility model aims to solve at least one of the technical problems in the related art to some extent. For this purpose, the purpose of the utility model is to provide a light source switching mechanism for navigation signal lights.

[0006] To achieve the above purpose, according to an embodiment of the utility model, the light source switching mechanism for navigation signal lights includes a turntable, a light emitter with its light-emitting direction facing forward, and a driving motor for driving the turntable to rotate around its own axis, which are arranged in sequence from front to back;

[0007] A plurality of filter plates of different colors are arranged on the turntable at intervals around its axis; when the driving motor drives the turntable to rotate around its own axis, any one of the filter plates can rotate to be directly opposite to the light-emitting direction of the light emitter in the front-rear direction.

[0008] In addition, according to the above embodiment of the utility model, the light source switching mechanism for navigation signal lights may further have the following additional technical features:

[0009] According to an embodiment of the utility model, a fixing hole penetrating through the front and rear end faces is formed in the middle of the turntable, and the rotating shaft of the driving motor is inserted and fixed into the fixing hole so as to be connected to the turntable as a whole.

[0010] According to an embodiment of the present utility model, a plurality of mounting openings penetrating through the front and rear end faces thereof are formed around the axis of the turntable; a plurality of the filter plates are detachably fixed to the plurality of mounting openings correspondingly.

[0011] According to an embodiment of the present utility model, a concave step is respectively cut backward in a circumferential direction at the front peripheral edge of the plurality of mounting openings, and a movable abutting member that does not block the corresponding mounting opening in the front and rear directions is respectively provided at the peripheral edge of the plurality of concave steps;

[0012] The plurality of filter plates are correspondingly clamped into the plurality of concave steps, and the front peripheral edges thereof are correspondingly abutted and fixed by the plurality of movable abutting members.

[0013] According to an embodiment of the present utility model, the movable abutting member includes a C-shaped abutting plate that is arranged in a fitting manner with the front end face of the turntable and locking bolts fixed at both ends of the C-shaped abutting plate;

[0014] A threaded hole is formed on the turntable outside the mounting opening, the locking bolt is screwed into the threaded hole, and the inner half part of the C-shaped abutting plate faces the concave step in the front and rear directions and does not block the mounting opening in the front and rear directions.

[0015] According to an embodiment of the present utility model, the filter plates include a white light filter plate, a red light filter plate and a green light filter plate that are arranged at intervals around the axis of the turntable.

[0016] According to an embodiment of the present utility model, the white light filter plate, the red light filter plate and the green light filter plate are arranged at intervals and evenly around the axis of the turntable.

[0017] According to an embodiment of the present utility model, the rotating shaft of the driving motor is arranged forward, and the driving motor is fixed on the light emitter.

[0018] According to an embodiment of the present utility model, a fixed mounting hole is formed downward at the top of the light emitter.

[0019] According to an embodiment of the present utility model, the light emitted by the light emitter is white light, and its light intensity is equal to or greater than 6000 cd.

[0020] The beneficial effects of the present utility model are as follows:

[0021] First, for the navigation signal light source switching mechanism provided in the present application, only one light emitter is provided. After the light emitted by the light emitter is filtered by different filter plates, different color light beams can be emitted and then led out through the provided optical lens, so that the overall volume and size of the present application can be greatly reduced, so that the present application is overall light and not bulky, making the present application convenient to use.

[0022] Second, to make the multiple filters present different colors, that is, it is convenient to rotate and switch the colors of the filters at any time during the specific use of the present application, making the use flexible.

[0023] Third, when the multiple filters are correspondingly clamped into the multiple concave steps and their front perimeters are correspondingly tightened and fixed by the multiple movable fasteners, it is convenient for the simple installation of the multiple filters. On the contrary, when the multiple movable fasteners correspondingly loosen the front perimeters of the multiple filters, it is convenient for the simple disassembly of the multiple filters. When the multiple movable fasteners are in use, in order not to block the corresponding position of the installation opening in the front-rear direction, so that it will not block the beam from shooting forward, and the outer perimeters of the multiple filters are correspondingly limited within the multiple concave steps, so that the rear perimeters thereof will not leak light outward, so that after filtering by it, the light color of the required beam is good in single color.

[0024] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] To more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.

[0026] Figure 1 is the overall structure schematic diagram of the navigation signal lamp light source switching mechanism of the present utility model Figure 1 ;

[0027] Figure 2 is the decomposition of the navigation signal lamp light source switching mechanism of the present utility model Figure 1 ;

[0028] Figure 3 is the overall structure schematic diagram of the navigation signal lamp light source switching mechanism of the present utility model Figure 2 ;

[0029] Figure 4 is the decomposition of the navigation signal lamp light source switching mechanism of the present utility model Figure 2 ;

[0030] Reference Signs:

[0031] Navigation signal lamp light source switching mechanism 1000;

[0032] Turntable 10;

[0033] Fixing hole 101;

[0034] Mounting opening 102;

[0035] Concave step 103;

[0036] Movable retaining member 104;

[0037] C-shaped retaining plate 1041;

[0038] Locking bolt 1042;

[0039] Luminator 20;

[0040] Connecting plate 201;

[0041] Rotating hole 2011;

[0042] Fixing bolt 2012;

[0043] Fixed mounting hole 202;

[0044] Drive motor 30;

[0045] Rotating shaft 301;

[0046] Lock hole 302;

[0047] Filter 40;

[0048] The realization, functional features and advantages of the present utility model will be further described in conjunction with the embodiments and with reference to the accompanying drawings. Detailed implementation manners

[0049] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the accompanying drawings of the specification, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present utility model, and should not be construed as limiting the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0050] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc. are based on the orientation or positional relationships shown in the accompanying drawings of the specification. These are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0051] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "a plurality of" is two or more, unless otherwise specifically defined.

[0052] In the present utility model, unless otherwise clearly specified and limited, the terms such as "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0053] In the present utility model, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over" and "on the top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath" and "under the bottom of" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0054] The following will refer to the accompanying drawings to describe in detail the navigation signal light source switching mechanism 1000 of the embodiment of the present utility model.

[0055] Refer to Figures 1 to 4As shown in the figure, the navigation aid signal light source switching mechanism 1000 provided according to an embodiment of the present utility model includes a turntable 10 arranged in sequence from front to back, a light emitter 20 with its light emitting direction facing forward, and a driving motor 30 for driving the turntable 10 to rotate around its own axis;

[0056] Among them, a plurality of filter plates 40 of different colors are arranged at intervals around the axis of the turntable 10; when the driving motor 30 drives the turntable 10 to rotate around its own axis, any one of the filter plates 40 can rotate to be directly opposite to the light emitting direction of the light emitter 20 in the front-rear direction.

[0057] Based on the above, it can be clearly seen that when the present application is specifically implemented, it is mainly used as the navigation aid signal light source switching mechanism 1000.

[0058] Specifically, when applying the present application, an optical lens located in front of the turntable 10 is arranged at a preset position directly in front of the light emitting direction of the light emitter 20, and the optical lens used and the present application are fixedly installed in a navigation aid lamp. According to the required usage requirements, the beam intensity emitted by the light emitter 20 is not less than 6000 cd, and the beam emitted by the light emitter 20 is white light. Then, the corresponding navigation aid lamp with the present application is aimed at the direction and target to be irradiated, such as an aircraft taking off, landing or moving in the airport maneuvering area, and the present application is started, so that the driving motor 30 drives the turntable 10 to rotate around its own axis, so that the required filter plate 40 rotates to be directly opposite to the light emitting direction of the light emitter 20 in the front-rear direction. In this way, it is convenient for the light emitted by the light emitter 20 to be filtered by the corresponding filter plate 40 and then emitted to the optical lens and exported through the optical lens.

[0059] When the required filter plate 40 is a white light filter plate 40, it enables white light to pass through after being filtered by the white light filter plate 40 and be exported through the optical lens; when the required filter plate 40 is a red light filter plate 40, it enables red light to pass through after being filtered by the red light filter plate 40 and be exported through the optical lens; when the required filter plate 40 is a green light filter plate 40, it enables green light to pass through after being filtered by the green light filter plate 40 and be exported through the optical lens.

[0060] Obviously, for the use of the above present application, it will have the following technical effects:

[0061] On the one hand, the present application is only provided with one said light emitter 20. After the light emitted by it is filtered by different filters 40, different colored light beams can be emitted and then led out through the provided optical lens, so that the overall volume and size of the present application can be greatly reduced, resulting in the overall lightness and convenience of use of the present application.

[0062] On the other hand, in order to make multiple said filters 40 present different colors, that is, it is convenient to rotate and switch the colors of the filters 40 at any time during the specific use of the present application, making the use flexible.

[0063] Furthermore, through the above optimization design, the overall structure formed by the present application has strong practicability and good use effect.

[0064] Further, in the specific implementation, referring to Figure 2 and Figure 4 shown, according to an embodiment of the present invention, a fixing hole 101 penetrating the front and rear end faces is opened in the middle of the turntable 10, and the rotating shaft 301 of the driving motor 30 is inserted and fixed into the fixing hole 101 to be integrally connected with the turntable 10.

[0065] Preferably, in this technical solution, the rotating shaft 301 of the driving motor 30 can also be connected to the turntable 10 through gear assemblies such as planetary reduction gears in series, as long as it can drive the turntable 10 to rotate around its own axis.

[0066] Still further, in the specific implementation, continuing to refer to Figure 2 and Figure 4 shown, according to an embodiment of the present invention, a plurality of mounting openings 102 penetrating the front and rear end faces are formed around the axis of the turntable 10; a plurality of said filters 40 are correspondingly and detachably fixed in a plurality of said mounting openings 102.

[0067] In this regard, it can be clearly seen that in the present application, a plurality of said filters 40 are detachable, making it convenient to select and replace them according to actual needs.

[0068] Preferably, in this technical solution, still referring to Figure 2 and Figure 4 shown, according to an embodiment of the present invention, a concave step 103 is respectively cut backward around the front periphery of a plurality of said mounting openings 102, and a movable retaining member 104 that does not block the corresponding position of the said mounting opening 102 in the front-rear direction is respectively provided on the periphery of a plurality of said concave steps 103;

[0069] Among them, a plurality of said filters 40 are correspondingly clamped into a plurality of said concave steps 103, and the front periphery thereof is correspondingly clamped and fixed by a plurality of said movable retaining members 104.

[0070] Thus, when multiple ones of the filters 40 are correspondingly snap-fitted into multiple ones of the concave steps 103 and the front peripheral edges thereof are correspondingly fastened and fixed by multiple ones of the movable fasteners 104, it is convenient for the simple installation of multiple ones of the filters 40. On the contrary, when the front peripheral edges of multiple ones of the filters 40 are correspondingly loosened by multiple ones of the movable fasteners 104, it is convenient for the simple disassembly of multiple ones of the filters 40.

[0071] Meanwhile, when multiple ones of the movable fasteners 104 are in use, in order not to block the corresponding position of the mounting opening 102 in the front-rear direction so that the light beam is not blocked from emitting forward, and the outer peripheral edges of multiple ones of the filters 40 are correspondingly limited within multiple ones of the concave steps 103 so that the rear peripheral edges thereof do not leak light outward, so that after being filtered by the filters 40, the required light beam has good color uniformity of the emitted light.

[0072] Furthermore, through the above optimized design, the overall structure formed by the present application has good use reliability.

[0073] And preferably, in this technical solution, still referring to Figure 2 and Figure 4 As shown, according to an embodiment of the present invention, the movable fastener 104 includes a C-shaped fastening plate 1041 that is disposed in a fitting manner with the front end surface of the turntable 10 and locking bolts 1042 that are fixed at both ends of the C-shaped fastening plate 1041;

[0074] Wherein, screw holes are formed on the turntable 10 outside the mounting opening 102, the locking bolts 1042 are screwed into the screw holes, and the inner half of the C-shaped fastening plate 1041 faces the concave step 103 in the front-rear direction and does not block the mounting opening 102 in the front-rear direction.

[0075] In this way, by providing the C-shaped fastening plate 1041, the outer edge of the filter 40 to be fixed can be tightly fastened and fixed into the concave step 103 by the inner half thereof, so as to be fixed to the mounting opening 102. On the contrary, when the locking bolts 1042 are loosened, it is convenient to take out the filter 40 from the concave step 103.

[0076] In addition, it should be noted that, according to an embodiment of the present invention, the filter 40 includes a white light filter 40, a red light filter 40, and a green light filter 40 that are arranged at intervals around the axis of the turntable 10.

[0077] Therefore, when the present application is specifically used, it can be clearly known that:

[0078] Drive the drive motor 30 to drive the white light filter 40 to rotate until it faces the light emitter 20 in the front-rear direction. At this time, after being filtered by the white light filter 40, the white light beam can be led out through the optical lens.

[0079] Drive the drive motor 30 to drive the red light filter 40 to rotate until it faces the light emitter 20 in the front-rear direction. At this time, after being filtered by the red light filter 40, the red light beam can be led out through the optical lens.

[0080] Drive the drive motor 30 to drive the green light filter 40 to rotate until it faces the light emitter 20 in the front-rear direction. At this time, after being filtered by the green light filter 40, the green light beam can be led out through the optical lens.

[0081] Drive the drive motor 30 to drive the red light filter 40 and the green light filter 40 to rotate back and forth until they face the light emitter 20 in the front-rear direction. At this time, after being alternately filtered by the red light filter 40 and the green light filter 40, the red light beam and the green light beam can be led out through the optical lens alternately flashing at the set frequency.

[0082] Furthermore, based on the above usage method, the following examples can be given to illustrate how this application is applied.

[0083] For an aerial vehicle, when this application emits a red constant light beam, the instruction expressed is: let it give way or hover; when this application emits a red flashing light beam, the instruction expressed is: do not allow it to land; when this application emits a green constant light beam, the instruction expressed is: allow it to land; when this application emits a green flashing light beam, the instruction expressed is: let it wait to land; when this application emits a red-green alternating flashing light beam, the instruction expressed is: special extreme warning.

[0084] For a ground vehicle, when this application emits a red constant light beam, the instruction expressed is: let it stop; when this application emits a red flashing light beam, the instruction expressed is: let it slide out of the runway; when this application emits a green constant light beam, the instruction expressed is: allow it to take off; when this application emits a green flashing light beam, the instruction expressed is: allow it to taxi; when this application emits a red-green alternating flashing light beam, the instruction expressed is: special extreme warning; when this application emits a white flashing light beam, the instruction expressed is: let it return to the starting point.

[0085] For ground staff / vehicles, when this application emits a red constant light beam, the instruction expressed is: let it stop; when this application emits a red flashing light beam, the instruction expressed is: let it clear the runway; when this application emits a green constant light beam, the instruction expressed is: allow it to cross / pass through the runway; when this application emits a white flashing light beam, the instruction expressed is: let it return to the starting point.

[0086] Furthermore, through the above optimization design, the overall structure formed by the present application has comprehensive functions and is very flexible to use, and the overall use effect is excellent.

[0087] Furthermore, in specific implementation, according to an embodiment of the present invention, the white light filter 40, the red light filter 40, and the green light filter 40 are spaced apart and evenly arranged around the axis of the turntable 10.

[0088] In this way, it is relatively convenient to set a program to control the rotation shaft 301 of the driving motor 30 to rotate a specific number of turns each time, so as to control a certain filter 40 to be driven to rotate to be directly opposite to the light emitting direction of the light emitter 20 in the front-rear direction.

[0089] Again, in specific implementation, referring to Figure 2 、 Figure 3 and Figure 4 shown, according to an embodiment of the present invention, the rotation shaft 301 of the driving motor 30 is arranged forward, and the driving motor 30 is fixedly arranged at the bottom of the light emitter 20.

[0090] Preferably, in this technical solution, a connecting plate 201 is provided downward at the bottom of the light emitter 20, and a rotating hole 2011 penetrating through its front and rear end faces is formed on the connecting plate 201. The rotation shaft 301 of the driving motor 30 is rotatably inserted into the rotating hole 2011, and the front end of its rotation shaft 301 is connected to the turntable 10.

[0091] Moreover, a locking hole 302 is formed on the front end face of the driving motor 30, and a fixing bolt 2012 screwed into the locking hole 302 is provided on the connecting plate 201. The driving motor 30 is fixed to the connecting plate 201 as a whole through the corresponding fixing bolt 2012 inserted into the locking hole 302.

[0092] It should be added that, in specific implementation, referring to Figure 1 and Figure 3 shown, according to an embodiment of the present invention, a fixed mounting hole 202 is formed downward at the top of the light emitter 20.

[0093] In this way, by inserting a locking bolt 1042 into the fixed mounting hole 202, it is convenient to fix the present application to the navigation aid lamp to be used.

[0094] It should be further added that, in specific implementation, according to an embodiment of the present invention, the light emitted by the light emitter 20 is white light, and its light intensity is equal to or greater than 6000 cd.

[0095] For other embodiments, etc., no examples will be given here.

[0096] In summary, the navigation signal light source switching mechanism 1000 provided by the present application only has one light emitter 20. After the light emitted by it is filtered by different filters 40, different colored light beams can be emitted and then led out through the provided optical lens, so that the overall volume and size of the present application can be greatly reduced, making the present application overall light and not bulky, and making the present application convenient to use.

[0097] Moreover, by making multiple filters 40 present different colors, it is convenient to rotate and switch the colors of the filters 40 at any time during the specific use of the present application, making the use flexible.

[0098] In addition, when multiple filters 40 are correspondingly clamped into multiple concave steps 103 and their front peripheries are correspondingly tightened and fixed by multiple movable fastening members 104, it is convenient for the simple installation of multiple filters 40. On the contrary, when multiple movable fastening members 104 correspondingly loosen the front peripheries of multiple filters 40, it is convenient for the simple disassembly of multiple filters 40. When multiple movable fastening members 104 are in use, they do not block the corresponding installation openings 102 in the front-rear direction, so that they do not block the light beam from shooting forward. Moreover, the outer peripheries of multiple filters 40 are correspondingly limited within multiple concave steps 103, so that their rear peripheries do not leak light outward, so that after being filtered by them, the required light beam has good color purity.

[0099] Furthermore, the navigation signal light source switching mechanism 1000 provided by the present application is indeed extremely practical and has excellent use effects, making the present application bound to have good market promotion value, and the present application will also be very popular and will surely be effectively popularized.

[0100] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0101] The above are only the preferred embodiments of the present utility model, and do not thus limit the patent scope of the present utility model. Any equivalent structural transformation made under the inventive concept of the present utility model by using the content of the specification and drawings of the present utility model, or any direct / indirect application in other related technical fields shall be included within the patent protection scope of the present utility model.

Claims

1. A navigation signal light source switching mechanism, characterized in that: It includes a rotating disk arranged in sequence from front to back, a light emitter arranged with the light emitting direction facing forward, and a driving motor for driving the rotating disk to rotate around its own axis; A plurality of filters of different colors are arranged at intervals around the axis of the turntable; when the drive motor drives the turntable to rotate around its own axis, any filter can be rotated to face the light emitting direction of the light emitter in the front-rear direction.

2. The navigation signal light source switching mechanism according to claim 1, characterized in that: A fixing hole is opened in the middle of the rotating disk and passes through the front and rear end surfaces thereof. The rotating shaft of the driving motor is inserted and fixed into the fixing hole so as to be connected with the rotating disk as a whole.

3. The navigation signal light source switching mechanism according to claim 1, characterized in that: The rotating disk is provided with a plurality of mounting openings around its axis and penetrating its front and rear end surfaces; and a plurality of the optical filters are detachably fixed to the plurality of mounting openings.

4. The navigation signal light source switching mechanism according to claim 3, characterized in that: The front peripheries of the plurality of installation openings are respectively cut backward with a concave step, and the peripheries of the plurality of concave steps are respectively provided with a movable stop piece that does not block the installation openings at corresponding positions in the front-rear direction; The plurality of filters are correspondingly mounted in the plurality of recessed steps, and the front edges thereof are correspondingly pressed and fixed by the plurality of movable retaining members.

5. The navigation signal light source switching mechanism according to claim 4, characterized in that: The movable retaining member comprises a C-shaped retaining plate which is arranged in close contact with the front end surface of the rotating disk and locking bolts which are fixed at both ends of the C-shaped retaining plate; The turntable is provided with a screw hole at the periphery of the mounting opening, the locking bolt is threaded into the screw hole, the inner half of the C-shaped fixing plate faces the recessed step in the front-to-back direction and does not block the mounting opening in the front-to-back direction.

6. The navigation signal light source switching mechanism according to claim 1, characterized in that: The filters include a white light filter, a red light filter and a green light filter which are arranged at intervals around the axis of the rotating disk.

7. The navigation signal light source switching mechanism according to claim 6, characterized in that: The white light filter, the red light filter and the green light filter are spaced and evenly arranged around the axis of the rotating disk.

8. The navigation signal light source switching mechanism according to claim 1, characterized in that: The rotating shaft of the driving motor is arranged forward, and the driving motor is fixed on the light emitter.

9. The navigation signal light source switching mechanism according to claim 1, characterized in that: A fixing installation hole is downwardly opened on the top of the light emitter.

10. The navigation signal light source switching mechanism according to any one of claims 1 to 9, characterized in that: The light emitted by the light emitter is white light, and the light intensity thereof is equal to or greater than 6000cd.

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