Lamp with adjustable beam angle

Abstract

The invention relates to the field of lamps, in particular to a lamp with an adjustable beam angle. A lamp with an adjustable beam angle comprises a lamp body and a lens assembly. When the sleeve rotates relative to the lamp body, the lens assembly telescopically moves relative to the lamp body under the cooperation of the guide rib and the guide groove; the lens assembly is provided with an adjusting stroke section for adjusting a beam angle in the telescopic movement process relative to the lamp body; in the adjusting stroke section, the upper sleeve is aligned with the LED light source, the upper sleeve shields the LED light source from the periphery in a surrounding mode, and light emitted by the LED light source is emitted outwards through the lens; the lens assembly does telescopic motion relative to the lamp body and continues to extend outwards from the adjusting stroke section to the transparent lower sleeve to be aligned with the LED light source, and light emitted by the LED light source can be emitted to the periphery through the transparent lower sleeve. The device has the beneficial effects that the structure is simple, installation is convenient, rotation is converted into telescopic motion through cooperation of the spiral line guide ribs and the guide grooves, and adjustment is convenient. The lamp has the functions of emitting light to the periphery and illuminating the periphery.

Description

Technical Field

[0001] The invention relates to the field of lamps, in particular to a lamp with adjustable beam angle. Background Art

[0002] A lamp is a lighting device. Common portable lamps include headlamps, lanterns, flashlights, etc. The lamps need to adjust the beam angle during use. Therefore, it is necessary to study a lamp with a simple structure that can easily adjust the beam angle. In addition, traditional lamps have a single function and cannot meet the needs. Summary of the invention

[0003] The object of the present invention is to provide a lamp with adjustable beam angle to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a lamp with adjustable beam angle, comprising: a lamp body and a lens assembly; an LED light source is arranged in the lamp body; a guide ring is arranged around the lamp body; a plurality of guide grooves are arranged on the guide ring; the lens assembly comprises: a sleeve and a lens for focusing light; the lens is mounted on the sleeve; the sleeve is rotatably sleeved on the lamp body; light emitted by the LED light source is transmitted outward through the lens; a plurality of guide ribs matching the guide grooves are arranged on the inner wall of the sleeve; the guide ribs are spiral structures, and the guide ribs slide in the guide grooves; When the sleeve rotates relative to the lamp body, the lens assembly moves telescopically relative to the lamp body under the cooperation of the guide ribs and the guide grooves; the sleeve comprises: a transparent lower sleeve capable of transmitting light and an upper sleeve for blocking light; the transparent lower sleeve is fixed to the upper sleeve; During the telescopic movement of the lens assembly relative to the lamp body, there is an adjustment stroke section for adjusting the light beam angle. In the adjustment stroke section, the upper sleeve is aligned with the LED light source, and the upper sleeve surrounds and blocks the LED light source from all sides, and the light emitted by the LED light source is emitted outward through the lens; the lens assembly telescopically moves relative to the lamp body, and continues to extend outward from the adjustment stroke section until the transparent lower sleeve is aligned with the LED light source, and the light emitted by the LED light source can be emitted to all sides through the transparent lower sleeve.

[0005] As a further solution of the present invention: the lamp body includes: a lower casing, a light-transmitting sleeve that can transmit light, and a transparent cover that can project light; the light-transmitting sleeve is fixed to the lower casing; the light-transmitting sleeve surrounds the LED light source; the transparent cover is detachably mounted to the light-transmitting sleeve; the guide ring is tightened from both sides by the light-transmitting cover and the light-transmitting sleeve; in the adjustment stroke section, the light emitted by the LED light source passes through the top of the light-transmitting sleeve and the lens to be emitted outward; when the transparent lower sleeve is aligned with the LED light source, the light emitted by the LED light source can pass through the light-transmitting sleeve and the transparent cover and pass through the transparent lower sleeve to be emitted in all directions.

[0006] As a further solution of the present invention: the transparent cover is installed to the light-transmitting sleeve by screwing.

[0007] As a further solution of the present invention: the lamp body further comprises: a sealing ring; the sealing ring is located between the light-transmitting sleeve and the transparent cover.

[0008] As a further solution of the present invention: the light-transmitting sleeve is formed with a step structure; the guide ring is sleeved on the step structure; the transparent cover and the step surface of the step structure clamp the guide ring from both sides.

[0009] As a further solution of the present invention: an anti-drop buckle rib is provided at the end of the guide rib; the anti-drop buckle rib and the guide rib form a T-shape; the width of the anti-drop buckle rib is greater than the width of the guide groove; a slope structure is provided on the side of the anti-drop buckle rib away from the guide rib.

[0010] As a further solution of the present invention: a positioning step surface is formed on the lamp body; when the lens assembly is extended to the shortest length relative to the lamp body, the positioning step surface abuts against the sleeve; when the lens assembly is extended to the longest length relative to the lamp body, the anti-drop buckle rib abuts against the guide ring.

[0011] As a further solution of the present invention: the guide rib is formed by a transparent lower sleeve and an upper sleeve.

[0012] As a further solution of the present invention: the transparent lower sleeve and the upper sleeve are fixed as a whole by ultrasonic welding.

[0013] As a further solution of the present invention: the inner wall of the upper sleeve is provided with a reflective coating.

[0014] Compared with the prior art, the invention has the following beneficial effects: simple structure, easy installation, and convenient adjustment by converting rotation into telescopic motion through the cooperation of the spiral guide rib and the guide groove. It has the function of emitting light to the surroundings and illuminating the surroundings. In the traditional front-lighting mode, it provides the function of illuminating the surroundings. The mode switching function is combined with the beam angle adjustment function, which is easy to use and does not require additional complex structures.

[0015] Other features and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of a lamp with adjustable beam angle of the present invention, showing that the lens assembly is retracted relative to the lamp body and is in the shortest position of the adjustment stroke; Figure 2 yes Figure 1 A schematic diagram of another state of a lamp with an adjustable beam angle, showing that the lens assembly is extended relative to the lamp body and is in the longest position of the adjustment stroke section; Figure 3 yes Figure 2 A partial enlarged view of a lamp with an adjustable beam angle; Figure 4 yes Figure 2 A schematic diagram of another state of a lamp with an adjustable beam angle, showing that the lens assembly continues to extend outward from the adjustment stroke section to the farthest position relative to the lamp body; Figure 5 yes Figure 1 A schematic diagram of a lamp body of a lamp with an adjustable beam angle; Figure 6 yes Figure 5 A partial enlarged view of the lamp body; Figure 7 yes Figure 1 A schematic diagram of a lens assembly of a lamp with adjustable beam angle; Figure 8 yes Figure 7 A partial enlarged view of the middle lens assembly.

[0017] List of reference numerals: lamp with adjustable beam angle 100, lamp body 10, LED light source 11, guide ring 12, guide groove 121, lower housing 13, light-transmitting sleeve 14, transparent cover 15, sealing ring 16, lens assembly 20, sleeve 21, guide rib 2101, anti-drop buckle rib 2102, transparent lower sleeve 211, upper sleeve 212, lens 22. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figures 1 to 8In an embodiment of the present invention, a lamp 100 with an adjustable beam angle includes: a lamp body 10 and a lens assembly 20. An LED light source 11 is provided in the lamp body 10. Specifically, an LED lamp board is provided in the lamp body 10. A plurality of LED lamps are mounted on the LED lamp board. A guide ring 12 is provided around the lamp body 10. A plurality of guide grooves 121 are provided on the guide ring 12. The lens assembly 20 includes: a sleeve 21 and a lens 22. The lens 22 is used for focusing light. The lens 22 is mounted to the sleeve 21. The sleeve 21 is rotatably sleeved on the lamp body 10. The light emitted by the LED light source 11 is transmitted outward through the lens 22. A plurality of guide ribs 2101 are provided on the inner wall of the sleeve 21. The guide ribs 2101 match the guide grooves 121. The guide ribs 2101 are spiral structures, and the guide ribs 2101 slide in the guide grooves 121, thereby guiding the sleeve 21 to rotate relative to the lamp body 10. When the sleeve 21 rotates relative to the lamp body 10, the lens assembly 20 telescopically moves relative to the lamp body 10 under the cooperation of the guide rib 2101 and the guide groove 121. The sleeve 21 includes: a transparent lower sleeve 211 and an upper sleeve 212. The transparent lower sleeve 211 can transmit light. The upper sleeve 212 blocks light. The transparent lower sleeve 211 is fixed to the upper sleeve 212. As a preferred embodiment, the transparent lower sleeve 211 and the upper sleeve 212 are made of the same plastic material, wherein the upper sleeve 212 controls the color by masterbatches of different colors. As a specific embodiment, the transparent lower sleeve 211 is a transparent ABS material. The upper sleeve 212 is also made of ABS material. The same material is convenient for ultrasonic welding. As an optional method, other methods can also be used to fix the transparent lower sleeve 211 and the upper sleeve 212 as a whole, such as screw connection or buckle.

[0020] During the telescopic movement of the lens assembly 20 relative to the lamp body 10, there is an adjustment stroke section for adjusting the beam angle. In the adjustment stroke section, the upper sleeve 212 is aligned with the LED light source 11, and the upper sleeve 212 surrounds and shields the LED light source 11 from all sides, and the light emitted by the LED light source 11 is emitted outward through the lens 22. The lens assembly 20 telescopically moves relative to the lamp body 10, and continues to extend outward from the adjustment stroke section until the transparent lower sleeve 211 is aligned with the LED light source 11, and the light emitted by the LED light source 11 can be emitted to all sides through the transparent lower sleeve 211.

[0021] As a specific embodiment, the lamp body 10 includes: a lower housing 13, a light-transmitting sleeve 14 and a transparent cover 15. The light-transmitting sleeve 14 can transmit light. The transparent cover 15 can project light. The light-transmitting sleeve 14 is fixed to the lower housing 13. The light-transmitting sleeve 14 surrounds the LED light source 11. The transparent cover 15 is detachably mounted to the light-transmitting sleeve 14. The guide ring 12 is tightened from both sides by the light-transmitting cover and the light-transmitting sleeve 14. In the adjustment stroke section, the light emitted by the LED light source 11 passes through the top of the light-transmitting sleeve 14 and the lens 22 to be emitted outward. When the transparent lower sleeve 211 is aligned with the LED light source 11, the light emitted by the LED light source 11 can pass through the light-transmitting sleeve 14 and the transparent cover 15 and pass through the transparent lower sleeve 211 to be emitted to the surroundings. In the adjustment stroke section, the distance between the lens 22 and the LED light source is controlled by telescoping the lens assembly 20 relative to the lamp body 10, thereby controlling the size of the beam angle. When the lens assembly 20 continues to extend beyond the adjustment stroke relative to the lamp body 10 to the maximum position, the light emitted by the LED light source 11 can pass through the transparent sleeve 14 and the transparent cover 15 and the transparent lower sleeve 211 to emit to the surroundings, thus illuminating the surroundings.

[0022] As a specific implementation, the transparent cover 15 is installed on the light-transmitting sleeve 14 by screwing.

[0023] As a specific implementation, the lamp body 10 further includes a sealing ring 16 . The sealing ring 16 is located between the light-transmitting sleeve 14 and the transparent cover 15 .

[0024] As a specific implementation, the light-transmitting sleeve 14 is formed with a step structure. The guide ring 12 is sleeved on the step structure. The transparent cover 15 and the step surface of the step structure clamp the guide ring 12 from both sides. The guide ring 12 is set as an independent part, which can improve the compatibility of different products.

[0025] As a specific implementation, an anti-drop buckle rib 2102 is provided at the end of the guide rib 2101. The anti-drop buckle rib 2102 and the guide rib 2101 form a T-shape. The width of the anti-drop buckle rib 2102 is greater than the width of the guide groove 121. A slope structure is provided on the side of the anti-drop buckle rib 2102 away from the guide rib 2101. During installation, the deformation of the structure can be utilized to squeeze the anti-drop buckle rib 2102 over the guide ring 12, thereby forming a buckle-fastening and anti-dropping effect.

[0026] As a specific embodiment, the lamp body 10 is formed with a positioning step surface. When the lens assembly 20 is extended to the shortest length relative to the lamp body 10, the positioning step surface abuts against the sleeve 21. When the lens assembly 20 is extended to the longest length relative to the lamp body 10, the anti-drop buckle rib 2102 abuts against the guide ring 12.

[0027] As a specific implementation, the guide rib 2101 is formed by a transparent lower sleeve 211 and an upper sleeve 212. The transparent lower sleeve 211 and the upper sleeve 212 are fixed as a whole by ultrasonic welding. Compared with the threaded connection and the snap connection, the ultrasonic welding method can achieve higher precision and effectively align the guide ribs 2101 on the transparent lower sleeve 211 and the upper sleeve 212 to avoid misalignment. As a preferred implementation, the number of guide ribs 2101 is 3. As an optional implementation, the number of guide ribs 2101 is 2, 4, etc.

[0028] As a specific implementation, a reflective coating is provided on the inner wall of the upper sleeve 212. The reflective coating can improve the brightness of light in the mode of emitting light to the surroundings.

[0029] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0030] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A lamp (100) with adjustable beam angle, characterized in that: include: A lamp body (10) and a lens assembly (20); an LED light source (11) is arranged inside the lamp body (10); a guide ring (12) is arranged around the lamp body (10); a plurality of guide grooves (121) are arranged on the guide ring (12); the lens assembly (20) comprises: a sleeve (21) and a lens (22) for focusing light; the lens (22) is mounted on the sleeve (21); the sleeve (21) is rotatably sleeved on the lamp body (10); light emitted by the LED light source (11) passes through the lens (22) and is transmitted outwardly; a plurality of guide ribs (2101) matching the guide grooves (121) are arranged on the inner wall of the sleeve (21); the guide ribs (2101) are of a spiral structure, and the guide ribs (2101) slide in the guide grooves (121); When the sleeve (21) rotates relative to the lamp body (10), the lens assembly (20) moves telescopically relative to the lamp body (10) under the cooperation of the guide rib (2101) and the guide groove (121); the sleeve (21) comprises: a transparent lower sleeve (211) capable of transmitting light and an upper sleeve (212) capable of blocking light; the transparent lower sleeve (211) is fixed to the upper sleeve (212); During the telescopic movement of the lens assembly (20) relative to the lamp body (10), the lens assembly (20) has an adjustment travel section for adjusting the light beam angle; in the adjustment travel section, the upper sleeve (212) is aligned with the LED light source (11), the upper sleeve (212) surrounds and shields the LED light source (11) from all sides, and the light emitted by the LED light source (11) is emitted outward through the lens (22); the lens assembly (20) telescopically moves relative to the lamp body (10), continues to extend outward from the adjustment travel section until the transparent lower sleeve (211) is aligned with the LED light source (11), and the light emitted by the LED light source (11) can be emitted in all directions through the transparent lower sleeve (211).

2. The lamp (100) with adjustable beam angle according to claim 1, characterized in that: The lamp body (10) comprises: a lower housing (13), a light-transmitting sleeve (14) capable of transmitting light, and a transparent cover (15) capable of projecting light; the light-transmitting sleeve (14) is fixed to the lower housing (13); the light-transmitting sleeve (14) surrounds the LED light source (11); the transparent cover (15) is detachably mounted on the light-transmitting sleeve (14); the guide ring (12) is tightened from both sides by the light-transmitting cover and the light-transmitting sleeve (14); in the adjustment stroke section, the light emitted by the LED light source (11) passes through the top of the light-transmitting sleeve (14) and the lens (22) to be emitted outward; when the transparent lower sleeve (211) is aligned with the LED light source (11), the light emitted by the LED light source (11) can pass through the light-transmitting sleeve (14) and the transparent cover (15) and pass through the transparent lower sleeve (211) to be emitted in all directions.

3. The lamp (100) with adjustable beam angle according to claim 2, characterized in that: The transparent cover (15) is mounted on the light-transmitting sleeve (14) by means of threaded tightening.

4. The lamp (100) with adjustable beam angle according to claim 3, characterized in that: The lamp body (10) further comprises: a sealing ring (16); the sealing ring (16) is located between the light-transmitting sleeve (14) and the transparent cover (15).

5. The lamp (100) with adjustable beam angle according to claim 3, characterized in that: The light-transmitting sleeve (14) is formed with a step structure; the guide ring (12) is sleeved on the step structure; the transparent cover (15) and the step surface of the step structure clamp the guide ring (12) from both sides.

6. The lamp (100) with adjustable beam angle according to claim 1, characterized in that: An anti-drop buckle rib (2102) is provided at the end of the guide rib (2101); the anti-drop buckle rib (2102) and the guide rib (2101) form a T-shape; the width of the anti-drop buckle rib (2102) is greater than the width of the guide groove (121); and a slope structure is provided on a side of the anti-drop buckle rib (2102) away from the guide rib (2101).

7. The lamp (100) with adjustable beam angle according to claim 6, characterized in that: The lamp body (10) is formed with a positioning step surface; when the lens assembly (20) is extended to the shortest length relative to the lamp body (10), the positioning step surface abuts against the sleeve (21); when the lens assembly (20) is extended to the longest length relative to the lamp body (10), the anti-drop buckle rib (2102) abuts against the guide ring (12).

8. The lamp (100) with adjustable beam angle according to claim 1, characterized in that: The guide rib (2101) is formed by the transparent lower sleeve (211) and the upper sleeve (212).

9. The lamp (100) with adjustable beam angle according to claim 8, characterized in that: The transparent lower sleeve (211) and the upper sleeve (212) are fixed into a whole by ultrasonic welding.

10. The lamp (100) with adjustable beam angle according to any one of claims 1 to 9, characterized in that: The inner wall of the upper sleeve (212) is provided with a reflective coating.

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