Zoom head-mounted lamp

Abstract

The utility model discloses a zoom head-mounted lamp, which comprises a shell, a battery, a circuit board and a zoom lens assembly, the battery and the circuit board are arranged in the shell, an electric switch button and a charging end are arranged on the circuit board, the circuit board is electrically connected with the battery, a mounting part is arranged on the shell, and the zoom lens assembly is arranged on the mounting part. The zoom lens assembly is mounted on the mounting part, the zoom lens assembly comprises an inner ring, a lens cup, an LED light source, a lens and a lens holder, a first limiting ring is arranged at the front end of the inner ring, a rubber ring is mounted on one side of the first limiting ring, a second limiting ring is arranged at the rear end in the third through hole, and the lens holder is mounted on the second limiting ring. The second limiting ring moves between the first limiting ring and the rear end of the inner ring, the rubber ring makes contact with the inner wall of the third through hole, the distance between the lens and the LED light source is changed through front-back movement of the lens cup, the size of the illumination range of the light source and the light condensation effect are adjusted, and different environments and requirements of users are met.

Description

Technical Field

[0001] This utility model relates to the field of headlights, and more particularly to a zoom headlight. Background Technology

[0002] Headlamps are lights worn on the head, freeing up the user's hands. However, in some remote areas and special high-altitude, underground, or other enclosed environments, existing headlamps cannot adjust the size of the illumination range or the focusing effect, making them unsuitable for various environments and unable to meet the needs of users. Summary of the Invention

[0003] The purpose of this invention is to provide a zoom headlamp that solves the problem that existing headlamps cannot adjust between low and high beams, cannot adapt to various environments, and cannot meet the needs of users.

[0004] The objective of this utility model is achieved through the following technical solution.

[0005] The purpose of this utility model is to provide a zoom headlamp, including a housing, a battery, a circuit board, and a zoom lens assembly. The battery and circuit board are disposed inside the housing. The circuit board is provided with an electric switch button and a charging terminal. The circuit board is electrically connected to the battery. The housing is provided with a mounting part. The zoom lens assembly is mounted on the mounting part. The zoom lens assembly includes an inner ring, a lens cup, an LED light source, a lens, and a lens holder. The inner ring is provided with a first through hole, and the LED light source is installed in the first through hole. The circuit board is electrically connected to the LED light source. The lens holder is provided with a second through hole, and the lens is installed in the second through hole. The lens cup has a third through hole at its axial position, and the lens holder is installed in the third through hole. The inner ring is disposed in the third through hole and can move and extend. The rear end of the inner ring is fixedly connected to the mounting part. The front end of the inner ring is provided with a first limiting ring, and a rubber ring is installed on one side of the first limiting ring. The rear end of the third through hole is provided with a second limiting ring. The second limiting ring moves between the first limiting ring and the rear end of the inner ring, and the rubber ring contacts the inner wall of the third through hole.

[0006] Furthermore, the front diameter of the lens cup is larger than the rear diameter, and the lens holder is installed at the front end of the lens cup.

[0007] Furthermore, a pressure ring is installed inside the first through hole, and the pressure ring is used to press the LED light source.

[0008] Furthermore, a light-transmitting cover is installed inside the lens cup, and a front ring is installed at the front end of the lens cup. The front ring is used to fix the light-transmitting cover and the lens frame.

[0009] Furthermore, one side of the lens is a convex arc surface, and the other side is a flat surface, and the lens is fastened to the lens holder.

[0010] Furthermore, an annular groove is provided at the front side of the inner ring, and the rubber ring is disposed in the annular groove, which is located at the front side of the first limiting ring.

[0011] Furthermore, the mounting part has a circular structure, and the inner ring is spirally connected to the mounting part.

[0012] Furthermore, several stepped protrusions are provided on the inner side of the third through hole, and the lens holder is mounted on the stepped protrusions.

[0013] Furthermore, a headband buckle is installed on the outer shell, and the outer shell is hinged to the headband buckle.

[0014] Furthermore, a display screen is provided on the circuit board.

[0015] Compared with the prior art, this utility model has the following advantages:

[0016] 1) This utility model describes a zoom headlamp, including a housing, a battery, a circuit board, and a zoom lens assembly. The battery and circuit board are disposed inside the housing. The circuit board is provided with an electric switch button and a charging terminal. The circuit board is electrically connected to the battery. The housing is provided with a mounting part, and the zoom lens assembly is mounted on the mounting part. The zoom lens assembly includes an inner ring, a lens cup, an LED light source, a lens, and a lens holder. A first through hole is provided in the inner ring, and the LED light source is installed in the first through hole. The circuit board is electrically connected to the LED light source. A second through hole is provided in the lens holder, and the lens is installed in the second through hole. The axis of the lens cup is... A third through hole is provided at the position, and the lens holder is installed in the third through hole. The inner ring is set in the third through hole and can move and extend. The rear end of the inner ring is fixedly connected to the mounting part. A first limiting ring is provided at the front end of the inner ring, and a rubber ring is installed on one side of the first limiting ring. A second limiting ring is provided at the rear end of the third through hole. The second limiting ring moves between the first limiting ring and the rear end of the inner ring, and the rubber ring contacts the inner wall of the third through hole. By moving the lens cup back and forth, the distance between the lens and the LED light source changes, thereby adjusting the size of the illumination range of the light source and the focusing effect to adapt to different environments and user needs.

[0017] 2) Other advantages of this utility model are described in detail in the embodiment section of the specification. Attached Figure Description

[0018] Figure 1 This is a perspective view of the zoom headlamp provided in an embodiment of the present utility model;

[0019] Figure 2 This is an exploded view of the zoom headlamp provided in this embodiment of the utility model;

[0020] Figure 3 This is an exploded view of the zoom headlamp provided in this embodiment of the utility model;

[0021] Figure 4 This is a cross-sectional view of the zoom lens assembly provided in an embodiment of the present invention;

[0022] Figure 5 This is a cross-sectional view of the zoom lens assembly provided in an embodiment of the present invention;

[0023] Figure 6 This is an exploded view of the zoom lens assembly provided in an embodiment of the present utility model;

[0024] Figure 7 This is an exploded view of the zoom lens assembly provided in an embodiment of the present invention. Detailed Implementation

[0025] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0026] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0028] like Figures 1 to 7As shown, this embodiment provides a zoom headlamp, including a housing 1, a battery 2, a circuit board 3, and a zoom lens assembly 4. The battery 2 and the circuit board 3 are disposed inside the housing 1. The circuit board 3 is provided with an electric switch button 31 and a charging terminal 32. The circuit board 3 is electrically connected to the battery 2. The housing 1 is provided with a mounting part 11, and the zoom lens assembly 4 is mounted on the mounting part 11. The zoom lens assembly 4 includes an inner ring 41, a lens cup 42, an LED light source 43, a lens 44, and a lens holder 45. The electric switch button 31 turns the LED light source 43 on or off via the circuit board 3. The battery 2 is used to store electrical energy for the LED light source 43. 3 provides power, and the charging terminal 32 is used to charge the battery 2. The inner ring 41 has a first through hole 411, and the LED light source 43 is installed in the first through hole 411. The inner ring 41 is made of metal and can dissipate heat from the LED light source 43. The circuit board 3 is electrically connected to the LED light source 43. The lens holder 45 has a second through hole 451, and the lens 44 is installed in the second through hole 451. The lens cup 42 has a third through hole 421 through its axis, and the lens holder 45 is installed in the third through hole 421. The lens 44 and the third through hole 421 are on the same axis. The inner ring 41 is located in the third through hole 421. The inner ring 41 is movable and retractable, changing the distance between the LED light source 43 and the lens 44 during this process. The rear end of the inner ring 41 is fixedly connected to the mounting part 11. A first limiting ring 412 is provided at the front end of the inner ring 41, and a rubber ring 46 is installed on one side of the first limiting ring 412. A second limiting ring 422 is provided at the rear end of the third through hole 421. The second limiting ring 422 moves between the first limiting ring 412 and the rear end of the inner ring 41. When the lens cup 42 moves forward, the first limiting ring 412 and the second limiting ring 422 engage to prevent disengagement. When the lens cup 42 moves backward... The lens cup 42 is fitted to the outer shell 1, and the rubber ring 46 contacts the inner wall of the third through hole 421. During the contact process, friction is generated, so that it can stay within a predetermined movement distance and will not slide randomly. This structure adjusts the size of the illumination range and the focusing effect of the light source by changing the distance between the lens 44 and the LED light source 43 by moving the lens cup back and forth. When the lens 44 and the LED light source 43 are closest, the illumination range is the largest, which has the effect of dispersing light. When the lens 44 and the LED light source 43 are farthest apart, the illumination range is the smallest, which has the effect of focusing light, adapting to different environments and user needs.

[0029] As an optional embodiment, the front diameter of the lens cup 42 is larger than the rear diameter, and the lens holder 45 is installed at the front end of the lens cup 42. Therefore, a larger front diameter can increase the irradiation range.

[0030] As an optional embodiment, a pressure ring 47 is installed in the first through hole 411. The pressure ring 47 is used to press the LED light source 43 to prevent the LED light source 43 from detaching.

[0031] As an optional embodiment, a light-transmitting cover 48 is installed inside the lens cup 42. The light-transmitting cover 48 can be a transparent glass cover or a transparent plastic cover. A front ring 49 is installed at the front end of the lens cup 42. The front ring 49 is used to fix the light-transmitting cover 48 and the lens holder 45. During the installation process, the lens holder 45 is first placed into the third through hole 421, and then the light-transmitting cover 48 is placed in. The edge of the lens holder 45 supports the light-transmitting cover 48. The front ring 49 is fastened or screwed to the lens cup 42 to fix it, thus fixing the lens holder 45 and the light-transmitting cover 48.

[0032] As an optional embodiment, one side of the lens 44 is a convex arc surface and the other side is a flat surface. The lens 44 is fastened to the lens holder 45. Only this structure can achieve the effect of focusing and diffusing light.

[0033] As an optional embodiment, an annular groove 413 is provided on the front side of the inner ring 41, and the rubber ring 46 is disposed in the annular groove 413. This allows the annular groove 413 and the rubber ring 46 to be at the same height. The annular groove 413 is located on the front side of the first limiting ring 412. During the extension and retraction of the lens cup 42, the rubber ring 46 is always in contact with the inner wall of the third through hole 421, making the lens cup 42 more stable and preventing shaking.

[0034] As an optional embodiment, the mounting part 11 has a circular structure, and the inner ring 41 is spirally connected to the mounting part 11. This installation is convenient, and different sizes of zoom lens assemblies 4 can be replaced according to the user's needs.

[0035] As an optional embodiment, a plurality of stepped protrusions 423 are provided on the inner side of the third through hole 421, and the lens holder 45 is disposed on the stepped protrusions 423. Multiple stepped protrusions 423 are arranged around the axis, which makes the lens holder 45 more stable.

[0036] As an optional embodiment, a headband buckle 5 is installed on the outer shell 1. The outer shell 1 and the headband buckle 5 are hinged together. The headband buckle 5 is fixed to the headband. The outer shell 1 and the headband buckle 5 can be rotated to adjust the angle.

[0037] As an optional embodiment, the circuit board 3 is provided with a display screen 33, which is used to display the battery level of the battery 2 and the mode switching indicator of the LED light source 43.

[0038] Existing headlamps cannot adjust the size of the illumination range or the focusing effect of the light source, making them unsuitable for various environments and failing to meet user needs. Therefore, a zoom headlamp is provided, which features a zoom lens assembly 4 mounted on the housing 1. A first through hole 411 is provided within the inner ring 41, and the LED light source 43 is installed within the first through hole 411. The lens holder 45 is installed within the third through hole 421 of the lens cup 42. A first limiting ring 412 is provided at the front end of the inner ring 41, and a rubber ring 46 is installed on one side of the first limiting ring 412. A second limiting ring 422 is provided at the rear end within the third through hole 421. The second limiting ring 422 moves between the first limiting ring 412 and the rear end of the inner ring 41. The movement of the lens cup changes the distance between the lens 44 and the LED light source 43, thereby adjusting the size of the illumination range and the focusing effect of the light source to adapt to different environments and user needs.

[0039] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited thereto. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model are equivalent substitutions and are included within the protection scope of the present utility model.

Claims

1. A zoom headlamp, comprising a housing (1), a battery (2), a circuit board (3), and a zoom lens assembly (4), wherein the battery (2) and the circuit board (3) are disposed within the housing (1), the circuit board (3) is provided with an electric switch button (31) and a charging terminal (32), the circuit board (3) is electrically connected to the battery (2), the housing (1) is provided with a mounting part (11), and the zoom lens assembly (4) is mounted on the mounting part (11), characterized in that: The zoom lens assembly (4) includes an inner ring (41), a lens cup (42), an LED light source (43), a lens (44), and a lens holder (45). The inner ring (41) has a first through hole (411), and the LED light source (43) is installed within the first through hole (411). The circuit board (3) is electrically connected to the LED light source (43). The lens holder (45) has a second through hole (451), and the lens (44) is installed within the second through hole (451). A third through hole (421) passes through the axial position of the lens cup (42), and the lens holder (45) is installed within the third through hole. (421) The inner ring (41) is installed in the third through hole (421) and can move and extend. The rear end of the inner ring (41) is fixedly connected to the mounting part (11). A first limiting ring (412) is provided at the front end of the inner ring (41). A rubber ring (46) is installed on one side of the first limiting ring (412). A second limiting ring (422) is provided at the rear end of the third through hole (421). The second limiting ring (422) moves between the first limiting ring (412) and the rear end of the inner ring (41), and the rubber ring (46) contacts the inner wall of the third through hole (421).

2. A zoom headlamp according to claim 1, characterized in that: The front diameter of the lens cup (42) is larger than the rear diameter, and the lens holder (45) is installed at the front end of the lens cup (42).

3. A zoom headlamp according to claim 1, characterized in that: A pressure ring (47) is installed inside the first through hole (411), and the pressure ring (47) is used to press the LED light source (43).

4. A zoom headlamp according to claim 2, characterized in that: A light-transmitting cover (48) is installed inside the lens cup (42), and a front ring (49) is installed at the front end of the lens cup (42). The front ring (49) is used to fix the light-transmitting cover (48) and the lens frame (45).

5. A zoom headlamp according to claim 1, characterized in that: One side of the lens (44) is a convex arc surface, and the other side is a flat surface. The lens (44) is fastened to the lens holder (45).

6. A zoom headlamp according to claim 1, characterized in that: An annular groove (413) is provided on the front side of the inner ring (41), and the rubber ring (46) is disposed in the annular groove (413). The annular groove (413) is located on the front side of the first limiting ring (412).

7. A zoom headlamp according to claim 1, characterized in that: The mounting part (11) has a circular structure, and the inner ring (41) is spirally connected to the mounting part (11).

8. A zoom headlamp according to claim 2, characterized in that: The inner side of the third through hole (421) is provided with several stepped protrusions (423), and the lens holder (45) is provided on the stepped protrusions (423).

9. A zoom headlamp according to claim 1, characterized in that: A headband buckle (5) is installed on the outer shell (1), and the outer shell (1) is hinged to the headband buckle (5).

10. A zoom headlamp according to claim 1, characterized in that: The circuit board (3) is equipped with a display screen (33).

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