Lamp beam angle adjusting mechanism

Abstract

The utility model relates to the field of lamps, in particular to a lamp beam angle adjusting mechanism. A lamp beam angle adjusting mechanism comprises a lamp body and a lens assembly. An LED light source is arranged in the lamp body; a guide ring is arranged on the lamp body in a surrounding mode. A plurality of guide grooves are formed in the guide ring; the lens assembly comprises a sleeve and a lens used for condensing light. The lens is mounted to the sleeve; the sleeve is rotatably arranged on the lamp body in a sleeving manner; light emitted by the LED light source penetrates through the lens to be transmitted outwards. A plurality of guide ribs matched with the guide grooves are arranged on the inner wall of the sleeve; the guide rib is of a spiral line structure and slides in the guide groove. When the sleeve rotates relative to the lamp body, the lens assembly does telescopic motion relative to the lamp body under the cooperation of the guide rib and the guide groove. The utility model has the beneficial effects that the structure is simple, the installation is convenient, the rotation is converted into the telescopic motion through the matching of the spiral line guide rib and the guide groove, and the adjustment is convenient.

Description

Technical Field

[0001] This utility model relates to the field of lighting fixtures, and in particular to a lighting fixture beam angle adjustment mechanism. Background Technology

[0002] A lamp is a lighting device. Common portable lamps include headlamps, lanterns, and flashlights. Lamp fixtures require beam angle adjustment during use. Therefore, it is necessary to research a simple structure for easily adjustable lamp beam angle adjustment mechanisms. Utility Model Content

[0003] The purpose of this invention is to provide a lamp beam angle adjustment mechanism to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A lamp beam angle adjustment mechanism includes: a lamp body and a lens assembly; an LED light source is disposed within the lamp body; a guide ring is disposed around the lamp body; the guide ring is provided with a plurality of guide grooves; the lens assembly includes: a sleeve and a lens for focusing light; the lens is mounted to the sleeve; the sleeve is rotatably fitted onto the lamp body; light emitted by the LED light source passes through the lens and is transmitted outward; the inner wall of the sleeve is provided with a plurality of guide ribs that match the guide grooves; the guide ribs are spiral structures and slide within the guide grooves; when the sleeve rotates relative to the lamp body, the lens assembly extends and retracts relative to the lamp body under the cooperation of the guide ribs and guide grooves.

[0006] As a further embodiment of this utility model: the end of the guide rib is provided with an anti-detachment buckle rib; the anti-detachment buckle rib and the guide rib form a T-shape; the width of the anti-detachment buckle rib is greater than the width of the guide groove; the side of the anti-detachment buckle rib away from the guide rib is provided with a sloping structure.

[0007] As a further embodiment of this utility model: the lamp body includes: a housing, a clamping ring, a sealing ring, and a transparent cover; the transparent cover covers the LED light source, enclosing the LED light source inside the housing; the housing has a stepped structure; a guide ring is fitted onto the stepped structure; the sealing ring is located between the end faces of the transparent cover and the housing; the clamping ring is installed to the housing by a threaded screw-on method; the clamping ring abuts against the transparent cover, squeezing the transparent cover and the sealing ring to the end face of the housing; the clamping ring and the stepped surface of the stepped structure clamp the guide ring from both sides.

[0008] As a further embodiment of this utility model: the housing is formed with a positioning step surface; when the lens assembly is extended to its shortest length relative to the lamp body, the positioning step surface abuts against the sleeve; when the lens assembly is extended to its longest length relative to the lamp body, the anti-detachment buckle rib abuts against the guide ring.

[0009] As a further embodiment of this utility model: an annular pressure rib is formed on the outer periphery of the transparent cover; a sealing ring is fitted on the transparent cover and abuts against the annular pressure rib; a clamping ring abuts against the annular pressure rib.

[0010] As a further embodiment of this utility model: the sleeve is provided with a positioning block for fixing the lens; the end of the positioning block away from the lens is provided with an inclined surface structure.

[0011] As a further embodiment of this invention, the lens is a convex lens or a Fresnel lens.

[0012] As a further embodiment of this utility model: a number of guide ribs are evenly distributed on the inner wall surface of the sleeve.

[0013] Compared with existing technologies, the advantages of this utility model are: simple structure, convenient installation, and the conversion of rotation into telescopic motion through the cooperation of spiral guide ribs and guide grooves, making adjustment convenient. The beam angle of the lamp can be adjusted by adjusting the distance between the LED light source and the lens.

[0014] The anti-detachment buckle ribs can be squeezed past the guide ring to achieve the anti-detachment effect, making installation convenient. The clamping ring simultaneously secures both the transparent cover and the guide ring, which can be achieved with simple screw-on installation, making it easy to install and with a simple structure.

[0015] Other features and advantages of this utility model will be disclosed in detail in the following specific embodiments and accompanying drawings. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a lamp beam angle adjustment mechanism according to the first embodiment of the present invention, showing the lens assembly retracted to its shortest position relative to the lamp body;

[0017] Figure 2 yes Figure 1 A partially enlarged view of a lamp beam angle adjustment mechanism according to the first embodiment;

[0018] Figure 3 yes Figure 1 Another schematic diagram of a lamp beam angle adjustment mechanism according to the first embodiment shows the lens assembly extending at its longest position relative to the lamp body;

[0019] Figure 4 yes Figure 1 A schematic diagram showing the separation of the lens assembly and the lamp body in a lamp beam angle adjustment mechanism according to the first embodiment;

[0020] Figure 5 yes Figure 4 A partial enlarged view of the lamp body of a lamp beam angle adjustment mechanism according to the first embodiment;

[0021] Figure 6 yes Figure 4 A partial enlarged view of the lens assembly of a lamp beam angle adjustment mechanism according to the first embodiment;

[0022] Figure 7 This is a schematic diagram of a lamp beam angle adjustment mechanism according to the second embodiment of the present invention, showing the lens assembly retracted to its shortest position relative to the lamp body;

[0023] Figure 8 yes Figure 7 A schematic diagram of another state of a lamp beam angle adjustment mechanism shows the lens assembly extending at its longest position relative to the lamp body.

[0024] List of reference numerals: 100 lamp beam angle adjustment mechanism, 10 lamp body, 11 LED light source, 12 guide ring, 121 guide groove, 13 housing, 14 clamping ring, 15 sealing ring, 16 transparent cover, 161 annular pressure rib, 20 lens assembly, 21 sleeve, 211 guide rib, 212 anti-detachment buckle rib, 213 positioning block, 22 lens. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1 to 6In the first embodiment of this utility model, a lamp beam angle adjustment mechanism 100 includes: a lamp body 10 and a lens assembly 20. The lamp body 10 contains an LED light source 11. Specifically, the lamp body 10 contains an LED light panel. Multiple LEDs are mounted on the LED light panel. A guide ring 12 surrounds the lamp body 10. The guide ring 12 has several guide grooves 121. 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 fitted onto the lamp body 10. Light emitted from the LED light source 11 passes through the lens 22 and is transmitted outwards. The inner wall of the sleeve 21 has several guide ribs 211. The guide ribs 211 match the guide grooves 121. The guide ribs 211 have a spiral structure and slide within the guide grooves 121. When the sleeve 21 rotates relative to the lamp body 10, the lens assembly 20 extends and retracts relative to the lamp body 10 with the cooperation of the guide rib 211 and the guide groove 121. The rotation is converted into extension and retraction motion by the cooperation of the spiral structure guide rib 211 and the guide groove 121.

[0027] In one specific implementation, the end of the guide rib 211 is provided with an anti-detachment snap rib 212. The anti-detachment snap rib 212 and the guide rib 211 form a T-shape. The width of the anti-detachment snap rib 212 is greater than the width of the guide groove 121. The side of the anti-detachment snap rib 212 away from the guide rib 211 is provided with a beveled structure. The beveled structure facilitates the installation of the lens assembly 20 onto the lamp body 10 by compression, that is, the guide rib 211 crosses the guide groove 121 and forms a snap-locking anti-detachment effect by hooking onto the outer wall of the guide groove 121.

[0028] In one specific embodiment, the lamp body 10 includes: a housing 13, a clamping ring 14, a sealing ring 15, and a transparent cover 16. The transparent cover 16 covers the LED light source 11, enclosing the LED light source 11 within the housing 13. The housing 13 has a stepped structure. A guide ring 12 is fitted onto the stepped structure. The sealing ring 15 is located between the end faces of the transparent cover 16 and the housing 13. The clamping ring 14 is screwed onto the housing 13. The clamping ring 14 abuts against the transparent cover 16, pressing the transparent cover 16 and the sealing ring 15 against the end face of the housing 13. The clamping ring 14 and the stepped surface of the stepped structure clamp the guide ring 12 from both sides.

[0029] In one specific implementation, the housing 13 has a positioning stepped surface. When the lens assembly 20 is extended to its shortest length relative to the lamp body 10, the positioning stepped surface abuts against the sleeve 21. When the lens assembly 20 is extended to its longest length relative to the lamp body 10, the anti-disengagement latching rib 212 abuts against the guide ring 12.

[0030] In one specific embodiment, an annular rib 161 is formed on the outer periphery of the transparent cover 16. The sealing ring 15 is fitted onto the transparent cover 16 and abuts against the annular rib 161. The clamping ring 14 abuts against the annular rib 161.

[0031] In one specific implementation, the sleeve 21 is provided with a positioning block 213. The positioning block 213 fixes the lens 22. The end of the positioning block 213 away from the lens 22 is provided with a bevel structure.

[0032] In one specific implementation, a plurality of guide ribs 211 are evenly distributed on the inner wall surface of the sleeve 21. In a preferred implementation, there are 3 guide ribs 211. In an optional implementation, the number of guide ribs 211 can also be set to 2, 4, etc.

[0033] In one specific implementation, lens 22 is a Fresnel lens.

[0034] Figure 7 and Figure 8 As shown, a lamp beam angle adjustment mechanism in the second embodiment of this utility model is similar to... Figures 1 to 6 The difference between the two lamp beam angle adjustment mechanisms 100 shown is that the lens of the lamp beam angle adjustment mechanism 100 in the second embodiment is a convex lens, while the lens 22 of the lamp beam angle adjustment mechanism 100 in the first embodiment is a Fresnel lens.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0036] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A lamp beam angle adjustment mechanism (100), characterized in that, include: The lamp body (10) and lens assembly (20) are provided; the lamp body (10) is provided with an LED light source (11); a guide ring (12) is provided around the lamp body (10); the guide ring (12) is provided with a plurality of guide grooves (121); the lens assembly (20) includes: a sleeve (21) and a lens (22) for focusing light; the lens (22) is installed to the sleeve (21); the sleeve (21) is rotatably fitted on the lamp body (10); the LED light source (11) The emitted light passes through the lens (22) and is transmitted outward; the inner wall of the sleeve (21) is provided with a plurality of guide ribs (211) that match the guide groove (121); the guide ribs (211) are spiral structures and slide in the guide groove (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 ribs (211) and the guide groove (121).

2. The lamp beam angle adjustment mechanism (100) according to claim 1, characterized in that, The end of the guide rib (211) is provided with an anti-detachment buckle rib (212); the anti-detachment buckle rib (212) and the guide rib (211) form a T-shape; the width of the anti-detachment buckle rib (212) is greater than the width of the guide groove (121); the side of the anti-detachment buckle rib (212) away from the guide rib (211) is provided with a sloping structure.

3. The lamp beam angle adjustment mechanism (100) according to claim 2, characterized in that, The lamp body (10) includes: a housing (13), a clamping ring (14), a sealing ring (15), and a transparent cover (16); the transparent cover (16) covers the LED light source (11) and encloses the LED light source (11) inside the housing (13); the housing (13) has a stepped structure; the guide ring (12) is sleeved on the stepped structure; the sealing ring (15) is located between the end faces of the transparent cover (16) and the housing (13); the clamping ring (14) is installed to the housing (13) by threaded screwing; the clamping ring (14) abuts against the transparent cover (16) and squeezes the transparent cover (16) and the sealing ring (15) to the end face of the housing (13); the clamping ring (14) and the stepped surface of the stepped structure clamp the guide ring (12) from both sides.

4. The lamp beam angle adjustment mechanism (100) according to claim 3, characterized in that, The housing (13) has a positioning step surface; when the lens assembly (20) is extended to its 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 its longest length relative to the lamp body (10), the anti-detachment buckle rib (212) abuts against the guide ring (12).

5. A lamp beam angle adjustment mechanism (100) according to claim 3, characterized in that, The outer periphery of the transparent cover (16) is formed with annular pressure ribs (161); the sealing ring (15) is sleeved on the transparent cover (16) and abuts against the annular pressure ribs (161); the clamping ring (14) abuts against the annular pressure ribs (161).

6. The lamp beam angle adjustment mechanism (100) according to claim 1, characterized in that, The sleeve (21) is provided with a positioning block (213) for fixing the lens (22); the end of the positioning block (213) away from the lens (22) is provided with an inclined structure.

7. A lamp beam angle adjustment mechanism (100) according to claim 1, characterized in that, The lens (22) is a convex lens or a Fresnel lens.

8. A lamp beam angle adjustment mechanism (100) according to claim 1, characterized in that, Several of the guide ribs (211) are evenly distributed on the inner wall surface of the sleeve (21).

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