Light source switching mechanism and double-light-source flashlight

Abstract

The light source switching mechanism comprises an LED substrate provided with at least two light sources, and further comprises a rotating base, a rotating hand wheel and a rotating base supporting piece. The LED substrate is fixed on the front side surface of the rotating seat; the rotating seat is sleeved in a fixing plate hole in the rotating seat supporting piece through a limiting sliding groove in the circumferential outer wall of the rotating seat; the rotating hand wheel is sleeved on the rotating seat supporting piece and can rotate around the rotating seat supporting piece; a kidney-shaped hole is formed in the outer wall of the rotating seat supporting piece; a connecting pin penetrates through the kidney-shaped hole, and the two ends of the connecting pin are connected with the rotating hand wheel and the rotating base respectively. Due to the simple structural design, switching of different light sources can be conveniently achieved.

Description

Technical Field

[0001] The invention relates to a light source switching mechanism and a double-light source flashlight. Background Art

[0002] In the prior art, the lighting device is composed of a light source emitting part and a light guide part, or is composed of a plurality of light source emitting parts and a plurality of light guide parts arranged one-to-one corresponding to the plurality of light source emitting parts, and the light guide part is a reflective cup.

[0003] The lighting device of the prior art has the following disadvantages: the lighting device with one light source emitting part cannot meet the needs of some special markets, such as hunting which requires a combination of green light and white light or a combination and switching of ultraviolet light and white light with high concealment. Summary of the invention

[0004] The object of the present invention is to provide a mechanism and a device thereof which can realize the switching of light sources of different frequency bands, thereby realizing the combined switching of different light sources to meet the lighting requirements in specific occasions.

[0005] To achieve the above object, the present invention provides a light source switching mechanism, comprising an LED substrate provided with at least two light sources, which is special in that it also comprises a rotating seat, a rotating hand wheel and a rotating seat support; the LED substrate is fixed on the front side of the rotating seat;

[0006] The rotating seat is inserted into the fixed plate hole in the rotating seat support member through the limiting sliding groove on the circumferential outer wall of the rotating seat;

[0007] The rotating hand wheel is mounted on the rotating seat support and can rotate around the rotating seat support;

[0008] A waist hole is arranged on the outer wall of the rotating seat support; a connecting pin passes through the waist hole, and two ends of the connecting pin are respectively connected with the rotating hand wheel and the rotating seat.

[0009] A conductive plate electrically connected to the LED substrate is fixed on the back of the rotating seat.

[0010] The conductive plate is fixed on the back side of the rotating seat through a limiting piece.

[0011] The aforementioned light source switching mechanism further includes a spring pin fixing seat disposed behind the conductive plate, the spring pin fixing seat being fixed on the fixing plate hole;

[0012] The spring pin fixing seat is provided with a negative conductive spring pin and a positive conductive spring pin;

[0013] The conductive plate is provided with an arc-shaped negative electrode conductive sheet in contact with the negative electrode conductive spring needle;

[0014] The conductive plate is provided with at least two positive power contacts which are connected to at least two light sources one by one, so as to contact the positive conductive spring pins respectively when the rotating seat rotates driven by the rotating hand wheel, thereby completing the positive conduction of the circuit of each light source.

[0015] The aforementioned rotating seat support is provided with at least two circumferentially arranged countersunk holes, the inner wall of the rotating hand wheel is provided with a plurality of positioning arc grooves along the circumference, the countersunk holes correspond to the positioning arc grooves, and a reset spring and a steel ball are provided in the countersunk holes;

[0016] The steel ball is pressed into the positioning circular arc groove by the return spring.

[0017] A dual-light source flashlight containing the aforementioned light source switching mechanism includes a plano-convex lens seat and a battery barrel assembly, wherein the rotating seat support is cylindrical, and the plano-convex lens seat is threadedly connected to the front end of the rotating seat support; the battery barrel assembly is connected to the rear end of the rotating seat support via an adapter tube.

[0018] A conductive plate electrically connected to the LED substrate is fixed on the back of the rotating seat; the conductive plate is fixed to the back of the rotating seat through a limiting plate;

[0019] It also includes a spring pin fixing seat placed behind the conductive plate and fixed on the fixing plate hole, the spring pin fixing seat is provided with a negative conductive spring pin and a positive conductive spring pin, the negative conductive spring pin and the positive conductive spring pin are in contact with the conductive contact point on the conductive plate in sequence;

[0020] A circuit main board is installed in the cavity of the adapter tube, and the circuit main board is electrically connected to the negative conductive spring pin and the positive conductive spring pin to supply power to the conductive plate.

[0021] The beneficial effects of the present invention are: simple structural design, and convenient switching of different light sources.

[0022] The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the front side of the light source switching mechanism.

[0024] Figure 2 It is a schematic diagram of the rear side of the light source switching mechanism.

[0025] Figure 3 It is an axial cross-sectional view of the light source switching mechanism.

[0026] Figure 4 This is an exploded diagram of the light source switching mechanism.

[0027] Figure 5It is a schematic diagram of the state in which the positive conductive spring needle contacts the positive contact of the white light source power supply to conduct the white light source conductive circuit.

[0028] Figure 6 It is a schematic diagram showing that the positive conductive spring needle is between the positive contact of the white light source power supply and the positive contact of the ultraviolet light source power supply, and all light sources are in the off state.

[0029] Figure 7 It is a schematic diagram of the state in which the positive conductive spring needle contacts the positive contact of the ultraviolet light source power supply to conduct the ultraviolet light source conductive circuit.

[0030] Figure 8 It is a schematic diagram of the fixed plate hole structure.

[0031] Fig. 9 It is a radial cross-sectional view of the light source switching mechanism from the front.

[0032] Fig.10 It is a radial cross-sectional view of the light source switching mechanism.

[0033] Fig.11 The present invention is a schematic diagram of a dual-light source flashlight including a light source switching mechanism.

[0034] Fig.12 yes Figure 8 AA section view.

[0035] In the figure: 1. light source; 2. LED substrate; 3. rotating seat; 4. rotating hand wheel; 5. rotating seat support; 6. limiting slide groove; 7. fixing plate hole; 8. connecting pin; 9. waist hole; 10. conductive plate; 11. limiting plate; 12. spring pin fixing seat; 13. negative conductive spring pin; 14. reset spring; 15. steel ball; 16. plano-convex lens seat; 17. battery tube assembly; 18. adapter tube; 19. circuit board; 20. countersunk hole; 21. positioning arc groove; 22. positive conductive spring pin; 23. arc-shaped negative conductive sheet; 24. positive contact of white light source power supply; 25. positive contact of ultraviolet light source power supply. DETAILED DESCRIPTION

[0036] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose, the specific implementation methods, structural features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and embodiments.

[0037] In order to realize the switching of light sources of different frequency bands, and thus realize the combined switching of different light sources to meet the lighting requirements in specific occasions, this embodiment provides a Figure 1 , 2 The light source switching mechanism shown, combined with Figure 3 , 4, 8, 9, it can be clearly seen that the light source switching mechanism includes an LED substrate 2 provided with at least two light sources 1, a rotating seat 3, a rotating hand wheel 4 and a rotating seat support 5; wherein the LED substrate 2 is fixed on the front side of the rotating seat 3; and the rotating seat 3 is sleeved in the fixed plate hole 7 in the rotating seat support 5 through the limiting slide groove 6 on its circumferential outer wall; and the rotating hand wheel 4 is sleeved on the rotating seat support 5 and can rotate around the rotating seat support 5; a waist hole 9 is provided on the outer wall of the rotating seat support 5; a connecting pin 8 passes through the waist hole 9, and the two ends of the connecting pin 8 are respectively connected to the rotating hand wheel 4 and the rotating seat 3.

[0038] It can be seen that when the light source needs to be switched, the rotating hand wheel 4 is manually rotated, and then the rotating seat 3 is driven to move in the mounting hole on the fixing plate hole 7 (see FIG. Figure 8 ) to achieve rotation within the focal point, thereby rotating another light source to the focal position to achieve the switching of light sources.

[0039] In order to realize the power supply to the LED substrate 2, a Figure 3 The conductive plate 10 shown is electrically connected to the LED substrate 2, and the conductive plate 10 is fixed to the back of the rotating seat 3 through the stopper 11. It also includes a spring pin fixing seat 12 placed behind the conductive plate 10, and the spring pin fixing seat 12 is fixed on the fixing plate hole 7. The spring pin fixing seat 12 is provided with Figure 5 A negative conductive spring needle 13 and a positive conductive spring needle 22 are shown; an arc-shaped negative conductive sheet 23 in contact with the negative conductive spring needle 13 is provided on the conductive plate 10. During the light source switching process, the arc-shaped negative conductive sheet 23 always keeps in contact with the negative conductive spring needle 13 to ensure that the negative pole of the power supply is reliably connected.

[0040] In order to switch different light sources on and off, at least two positive power contacts connected to at least two light sources 1 are provided on the conductive plate 10 in this embodiment. Figure 5 The positive contact 24 of the white light source power supply and the positive contact 25 of the ultraviolet light source power supply are used to contact the positive conductive spring pin 22 respectively when the rotating seat 3 rotates under the drive of the rotating hand wheel 4, so as to complete the positive conduction of the circuit of each light source and complete the on-off switching of the white light source and the ultraviolet light source. The specific light source switching process is as follows: Figure 5 , Figure 6 and Figure 7 It can be seen that, Figure 5 The positive conductive spring pin 22 contacts the positive contact 24 of the white light source power supply to conduct the white light source conductive circuit, and the white light source emits light. Figure 6As shown, as the rotating seat 3 rotates, the positive conductive spring needle 22 is in a non-conductive contact position between the positive contact 24 of the white light source power supply and the positive contact 25 of the ultraviolet light source power supply, that is, the entire light source is in a closed state. Figure 7 As shown, as the rotating seat 3 rotates further, the positive conductive spring needle 22 is located at the positive contact 25 of the ultraviolet light source power supply and contacts the positive contact 25 of the ultraviolet light source power supply, thus turning on the power supply circuit of the ultraviolet light source and the ultraviolet light source starts to emit light.

[0041] At the same time, in order to enhance the user's perception, facilitate the determination of the light source switching operation, and fix the light source position, this embodiment Fig.10 The rotating seat support 5 shown is provided with at least two circumferentially arranged countersunk holes 20, and the inner wall of the rotating handwheel 4 is provided with a plurality of positioning arc grooves 21 along the circumferential direction. The countersunk holes 20 correspond to the positioning arc grooves 21, and a reset spring 14 and a steel ball 15 are provided in the countersunk holes 20; and the steel ball 15 is pressed by the reset spring 14 into the positioning arc groove 21 on the inner wall of the rotating handwheel 4. When the rotating handwheel 4 is rotated, a collision sound between the steel ball and the positioning arc groove 21 is emitted.

[0042] Based on the above embodiments, this embodiment provides a Fig.11 The dual-light source flashlight having the light source switching mechanism provided in the above-mentioned embodiment includes: Fig.12 The plano-convex lens seat 16 and the battery barrel assembly 17 shown in the figure, the rotating seat support 5 is cylindrical, the plano-convex lens seat 16 is threadedly connected to the front end of the rotating seat support 5; the battery barrel assembly 17 is connected to the rear end of the rotating seat support 5 through the adapter barrel 18. A circuit board 19 is installed in the chamber of the adapter barrel 18, and the circuit board 19 is electrically connected to a negative conductive spring pin 13 and a positive conductive spring pin 22 to supply power to the conductive plate 10. The rest is as follows Fig.12 As shown, all of them are common existing technologies, mainly including a battery tube and a power negative electrode assembly to provide power to the flashlight.

[0043] The above contents are further detailed descriptions of the present invention in combination with specific preferred embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A light source switching mechanism, comprising an LED substrate (2) provided with at least two light sources (1), characterized in that: It also comprises a rotating seat (3), a rotating hand wheel (4) and a rotating seat support (5); the LED substrate (2) is fixed on the front side of the rotating seat (3); The rotating seat (3) is inserted into the fixing plate hole (7) in the rotating seat support (5) through the limiting sliding groove (6) on the circumferential outer wall of the rotating seat; The rotating hand wheel (4) is mounted on the rotating seat support (5) and can rotate around the rotating seat support (5); A waist hole (9) is provided on the outer wall of the rotating seat support (5); a connecting pin (8) passes through the waist hole (9), and two ends of the connecting pin (8) are respectively connected to the rotating hand wheel (4) and the rotating seat (3).

2. The light source switching mechanism according to claim 1, characterized in that: A conductive plate (10) electrically connected to the LED substrate (2) is fixed on the back side of the rotating seat (3).

3. The light source switching mechanism according to claim 2, characterized in that: The conductive plate (10) is fixed on the back side of the rotating seat (3) via a limiting plate (11).

4. The light source switching mechanism according to claim 2 or 3, characterized in that: It also includes a spring pin fixing seat (12) disposed behind the conductive plate (10), and the spring pin fixing seat (12) is fixed on the fixing plate hole (7); The spring pin fixing seat (12) is provided with a negative conductive spring pin (13) and a positive conductive spring pin (22); The conductive plate (10) is provided with an arc-shaped negative electrode conductive sheet (23) in contact with the negative electrode conductive spring needle (13); The conductive plate (10) is provided with at least two positive power supply contacts which are respectively connected to the at least two light sources (1) in a one-to-one correspondence, and are used to respectively contact the positive conductive spring needles (22) when the rotating seat (3) rotates under the drive of the rotating hand wheel (4), thereby completing the positive conduction of the circuit of each light source.

5. The light source switching mechanism according to claim 1, 2 or 3, characterized in that: The rotating seat support (5) is provided with at least two circumferentially arranged countersunk holes (20), the inner wall of the rotating hand wheel (4) is provided with a plurality of positioning circular arc grooves (21) along the circumferential direction, the countersunk holes (20) and the positioning circular arc grooves (21) are located at corresponding positions, and a return spring (14) and a steel ball (15) are arranged in the countersunk holes (20); The steel ball (15) is pressed into the positioning circular arc groove (21) by the return spring (14).

6. A dual-light source flashlight having the light source switching mechanism according to claim 1, comprising a plano-convex lens seat (16) and a battery cartridge assembly (17), characterized in that: The rotating seat support (5) is cylindrical, and the plano-convex lens seat (16) is threadedly connected to the front end of the rotating seat support (5); The battery barrel assembly (17) is connected to the rear end of the rotating seat support (5) via an adapter barrel (18).

7. The dual light source flashlight according to claim 6, characterized in that: A conductive plate (10) electrically connected to the LED substrate (2) is fixed on the back of the rotating seat (3); the conductive plate (10) is fixed on the back of the rotating seat (3) via a limiting plate (11); It also includes a spring pin fixing seat (12) disposed behind the conductive plate (10) and fixed on the fixing plate hole (7), the spring pin fixing seat (12) being provided with a negative conductive spring pin (13) and a positive conductive spring pin (22), the negative conductive spring pin (13) and the positive conductive spring pin (22) being in contact with the conductive contact points on the conductive plate (10) in sequence; A circuit main board (19) is installed in the chamber of the adapter tube (18), and the circuit main board (19) is electrically connected to the negative conductive spring pin (13) and the positive conductive spring pin (22) to supply power to the conductive plate (10).

8. The dual-light source flashlight according to claim 7, characterized in that: It also includes a spring pin fixing seat (12) disposed behind the conductive plate (10), and the spring pin fixing seat (12) is fixed on the fixing plate hole (7); The spring pin fixing seat (12) is provided with a negative conductive spring pin (13) and a positive conductive spring pin (22); The conductive plate (10) is provided with an arc-shaped negative electrode conductive sheet (23) in contact with the negative electrode conductive spring needle (13); The conductive plate (10) is provided with at least two positive power supply contacts which are respectively connected to the at least two light sources (1) in a one-to-one correspondence, and are used to respectively contact the positive conductive spring needles (22) when the rotating seat (3) rotates under the drive of the rotating hand wheel (4), thereby completing the positive conduction of the circuit of each light source.

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