Angle-adjustable lamp

Abstract

The utility model relates to the technical field of lighting devices, discloses an angle-adjustable lamp, and aims to solve the problems that an existing similar lamp is poor in damping consistency and free of accurate positioning during adjustment, and shadows are easily generated during large-angle adjustment. The lamp comprises a lamp body and a supporting frame, protruding blocks are arranged on the two sides of the lamp body, and bearing holes are correspondingly formed in the supporting frame to achieve running fit. An arc-shaped groove set containing a plurality of positioning pits is formed in the side portion of the lamp body, the supporting frame is correspondingly provided with an installation cylinder internally provided with a compression spring and a steel ball, and the steel ball is clamped in the positioning pits to achieve positioning after adjustment. The lamp main body is fan-shaped and the convex block is positioned at the central angle, so that light path shielding is avoided; the back of the supporting frame is provided with an elastic clamping assembly which facilitates installation. The LED lamp is stable in damping, accurate in adjustment, capable of supporting non-shielding large-angle adjustment and suitable for occasions where multiple lamps need a unified angle.

Description

TECHNICAL FIELD

[0001] The utility model relates to lighting device technical field, concretely relates to a lamp of adjustable angle. BACKGROUND

[0002] In the field of commercial lighting, home decoration, etc., the embedded lamp such as down lamp, spotlight needs to adjust the irradiation angle frequently to achieve the best lighting effect. The angle-adjustable lamps on the market generally have the following technical defects: first, the adjusting mechanism usually adopts friction damping or gear structure, the former is difficult to guarantee the damping force consistency in batch production, leading to the product tightness, and the latter has complex structure and high cost; second, the adjusting process lacks accurate positioning reference, usually relying on the operator's sense of touch, and the angle of multiple lamps cannot be unified, affecting the light spot consistency; third, when increasing the adjusting angle, the lamp itself structure often blocks the light path and forms a shadow. Therefore, the field urgently needs an innovative scheme that can solve the problems of damping stability, adjusting accuracy and large-angle adjustment without obstruction. SUMMARY

[0003] The utility model discloses a lamp of adjustable angle, which has the advantages of damping stability, adjusting accuracy, large-angle adjustment without obstruction, and is particularly suitable for occasions requiring uniform angle of multiple lamps and high batch consistency.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] A lamp of adjustable angle, comprising a lamp body and a support frame. The lamp body is symmetrically provided with protrusions on both sides, and the support frame is correspondingly provided with bearing holes on both sides which rotate with the protrusions, so that the lamp body can rotate around the axis of the protrusions. The lamp body is also provided with an arc-shaped groove group on both sides, which is composed of a plurality of positioning pits arranged along an arc-shaped track. The support frame is correspondingly provided with mounting barrels on both sides, and each mounting barrel is provided with a compression spring and a steel ball. One end of the compression spring is fixed to the bottom of the mounting barrel, and the other end pushes the steel ball to partially extend out of the mounting barrel and engage with any positioning pit in the arc-shaped groove group, thereby realizing reliable positioning of the lamp body after rotating and adjusting the angle.

[0006] As a further improvement of the utility model, the center of the arc-shaped groove group is located on the axis of the protrusions.

[0007] As a further improvement of the utility model, the arc-shaped groove group is arranged in the middle region of the side surface of the lamp body.

[0008] As a further improvement of the utility model, in the arc-shaped groove group, the adjacent positioning pits are connected by smooth arc-shaped surfaces.

[0009] As a further improvement of the utility model, the lamp body is a whole fan-shaped structure, and the convex block is arranged at a central angle position of the fan-shaped structure.

[0010] As a further improvement of the utility model, a plurality of ribs extending along the fan-shaped contour are arranged on the arc surface of the lamp body.

[0011] As a further improvement of the utility model, the plurality of positioning pits are distributed at equal angles around the axis of the convex block.

[0012] As a further improvement of the utility model, the convex block is a cylindrical shaft body, and the bearing hole is a circular hole matched with the cylindrical shaft body.

[0013] As a further improvement of the utility model, the mounting cylinder is arranged on the support frame and points to the axis of the convex block.

[0014] As a further improvement of the utility model, the back of the support frame is provided with an elastic clamping assembly for clamping installation, and the elastic clamping assembly comprises a pair of elastically retractable wings and an elastic member for providing opening force.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] 1. Stable and consistent positioning, overcoming individual differences: by adopting the mechanical interlocking positioning mechanism of "spring-steel ball-positioning pit", the traditional friction damping mode is replaced. The mechanism relies on standardized elastic elements and balls, which can effectively ensure the consistency of the damping force of each lamp product during batch production, fundamentally solving the problem of loose and tight and large hand feeling difference caused by tolerance in conventional adjustment mechanism, and significantly improving the uniformity and reliability of product quality.

[0017] 2. Mechanical step positioning, improving adjustment accuracy and repeatability: by cooperating between the arc-shaped groove group arranged on the side surface of the lamp body and taking the rotation axis as the center and the steel ball pressed by the spring on the support frame, a mechanical positioning mechanism with clear steps is constructed. The mechanism converts the stepless continuous change of angle into discrete step adjustment with clear position feeling. When the angle is adjusted, the steel ball must overcome the spring pre-pressure to slide into the next pit after leaving a positioning pit, which provides the operator with a clear step switching feeling. This hard positioning based on mechanical structure makes each step correspond to a unique and stable angle, thereby significantly reducing the dependence of the adjustment process on the operator's hand feeling, and providing a structural basis for realizing accurate and repeatable angle adjustment.

[0018] 3. Realize the large angle adjustment without blocking: the lamp body adopts the fan-shaped structure, and the convex block axis is arranged at the fan-shaped center angle position. This layout makes the lamp body effectively avoid the light path when rotating around the axis, so as to realize the super large angle adjustment range, and avoid the shadow problem in the adjustment process, and widen the application scene.

[0019] 4. Simple and reliable structure, beneficial to production and maintenance: the core rotating pair and positioning mechanism are simple in structure, easy to process and assemble. The arc-shaped groove group is arranged at the middle part of the side surface, and the stress is reasonable; the rib on the arc surface has the functions of enhancing rigidity and assisting heat dissipation. The overall structure reduces the manufacturing cost and improves the long-term use stability while ensuring the performance. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 It is the overall structure schematic view of the utility model;

[0021] Fig. 2 It is the exploded structure schematic view of the utility model;

[0022] Fig. 3 It is the cross section structure schematic view of the utility model; DETAILED DESCRIPTION

[0023] The utility model will be further explained in detail in combination with the drawings and specific embodiments. It should be noted that the following description is intended to explain the utility model, and should not be understood as limiting the utility model.

[0024] As shown in the drawings, Figs. 1 to 3 The utility model provides an angle adjustable lamp, which comprises a lamp body 1 and a support frame 2. The lamp body 1 is symmetrically provided with a cylindrical convex block 11 on both sides, and the support frame 2 is correspondingly provided with a bearing hole 21 rotatingly matched with the convex block 11 on both sides. The rotating pair composed of the convex block and the bearing hole is simple and reliable, which is beneficial to reducing the complexity of the structure and the manufacturing cost.

[0025] The lamp body 1 is preferably in a fan-shaped structure, and the convex block 11 is arranged at the center angle position of the fan-shaped structure. This design makes the rotating axis of the lamp body 1 located at the rear of the optical module, so that the shadow problem caused by the interference of the lamp structure with the light path can be effectively avoided during angle adjustment, and a wide adjustment range is realized.

[0026] To achieve stable positioning after adjustment, this invention employs a positioning mechanism based on mechanical interlocking. Specifically, arc-shaped groove groups 12 are provided on both sides of the lamp body 1, with the center of the arc-shaped groove group 12 located on the axis of the protrusion 11, thereby ensuring the accuracy of the adjustment trajectory. The arc-shaped groove group 12 is composed of multiple positioning recesses 121 arranged sequentially along the arc trajectory, and these positioning recesses 121 are distributed at equal angular intervals around the axis of the protrusion 11.

[0027] In a preferred embodiment, the number of positioning recesses 121 is set to 11, with a center-to-center interval of 9° between adjacent recesses, thereby providing 11 discrete positioning points within a range of 0° to 90°, enabling fine-tuning in different ranges. Mounting cylinders 22 are correspondingly arranged on both sides of the support frame 2, with their open ends facing the arc-shaped groove group. Their orientation allows the steel ball to engage or disengage with the positioning recesses in the arc-shaped groove group under the action of the compression spring. Each mounting cylinder 22 sequentially houses a compression spring 23 and a steel ball 24. One end of the compression spring 23 is fixed to the bottom of the mounting cylinder 22, while the other end continuously applies elastic force to the steel ball 24, causing the steel ball 24 to partially extend out of the mounting cylinder 22 and engage with a positioning recess 121 in the arc-shaped groove group 12.

[0028] Working principle: In the assembled state, the steel ball 24, under the preload of the compression spring 23, is tightly pressed into a certain positioning recess 121 of the arc-shaped groove assembly 12 (e.g., Fig. 3 (As shown). At this time, the frictional torque generated by the spring force is sufficient to overcome the weight of the lamp body 1 and slight vibrations, keeping it stably in its current position, thus achieving the positioning function. When the user needs to adjust the light angle, only a rotational torque needs to be applied to the lamp body 1. When this torque is sufficient to overcome the spring force, the steel ball 24 will be "squeezed out" from the current positioning recess 121 and roll along the area between the recesses. To make the sliding of the steel ball 24 smoother, provide a better feel, and reduce noise and wear, this invention is specially designed to connect adjacent positioning recesses 121 through a smooth arc surface 122. When the lamp body 1 rotates to the target angle, the steel ball 24 will "click" into the next positioning recess 121 under the action of the spring force, thus completing one angle adjustment and positioning. This structure provides a clear sense of the position and reliable holding force.

[0029] The spring-steel ball-pit positioning mechanism relies on standardized elastic elements and balls, which can ensure the consistency of damping force among products in mass production, and can improve the problem of inconsistent adjustment force caused by tolerances. When the lamp body 1 is rotated, the applied torque makes the steel ball 24 overcome the spring force to slide out of the current pit, move along the smooth transition arc surface 122 between adjacent pits, and finally fall into the next positioning pit 121, thereby providing a clear gear feeling and providing tactile and audible positioning feedback for angle adjustment.

[0030] In another preferred embodiment, in order to enhance the intuitiveness and operation accuracy of angle adjustment, angle scale marks corresponding to the positioning pits 121 are additionally provided on both sides of the lamp body 1. In the embodiment corresponding to the aforementioned 11 pits, the scale marks can be marked as 0°, 9°, 18°, and so on to 90°. When the lamp body 1 is rotated relative to the support frame 2, the user can observe the corresponding relationship between the reference line on the edge of the support frame 2 and the scale line on the lamp body 1, and directly and accurately read the current inclination angle. This design is particularly beneficial to ensuring that all lamps can be quickly and uniformly adjusted to a preset angle in a multi-lamp installation scenario, thereby ensuring the consistency of the lighting spot.

[0031] In addition, the arc-shaped groove set 12 is preferably arranged in the middle area of the side of the lamp body 1, which has high structural strength and is beneficial to uniform force transmission and long-term reliability. A plurality of parallel ribs 13 extending along the fan-shaped contour are arranged on the arc surface of the lamp body 1. These ribs 13 not only significantly increase the heat dissipation surface area of the lamp body 1, improve the heat dissipation conditions of the LED light source, and prolong the service life, but also act as reinforcing ribs to improve the overall stiffness and anti-deformation ability of the fan-shaped structure. An elastic clamping assembly 3 is arranged on the back of the support frame 2. The assembly generally includes a pair of inwardly elastic retractable flaps 31 and an elastic element 32 (usually a torsional spring or a compression spring made of spring steel) connected to the flaps and providing outward opening force. During installation, the pair of flaps 31 are squeezed inwardly by hand, and then the entire assembly is placed into the pre-drilled hole of the ceiling. After the hand is released, the flaps 31 are opened outwardly under the action of the elastic element 32, and tightly clamp the back of the ceiling, thereby realizing quick and tool-free installation of the lamp, and greatly improving the construction efficiency.

[0032] In summary, the lamp product provided by the synergistic cooperation of the above structural features is stable in adjustment, accurate in positioning, large in applicable angle, and convenient for unified debugging, and is particularly suitable for commercial lighting and other occasions with high requirements for light efficiency consistency.

[0033] The above merely describes a specific implementation of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, and all of these should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An angle-adjustable luminaire comprising a luminaire body (1) and a support frame (2), characterized in that, The lamp body (1) is symmetrically provided with protrusions (11) on both sides, and the support frame (2) is correspondingly provided with bearing holes (21) rotatingly matched with the protrusions (11) on both sides, so that the lamp body (1) can rotate around the axis of the protrusions (11); the lamp body (1) is further provided with an arc-shaped groove group (12) on both sides, the arc-shaped groove group (12) is composed of a plurality of positioning recesses (121) arranged in sequence along an arc-shaped track; the support frame (2) is correspondingly provided with mounting barrels (22) on both sides, each mounting barrel (22) is provided with a compression spring (23) and a steel ball (24) therein, one end of the compression spring (23) is fixed to the bottom of the mounting barrel (22), and the other end pushes the steel ball (24) to partially extend out of the mounting barrel (22) and be engaged with any positioning recess (121) in the arc-shaped groove group (12), so as to realize positioning after the lamp body (1) is adjusted in rotation.

2. An angle adjustable luminaire according to claim 1, characterized in that The center of the arc-shaped groove group (12) is located on the axis of the protrusion (11).

3. The adjustable angle luminaire of claim 1, wherein, The arc-shaped groove group (12) is arranged in the middle region of the side surface of the lamp body (1).

4. The adjustable angle luminaire of claim 1, wherein, In the arc-shaped groove group (12), the adjacent positioning recesses (121) are connected by smooth arc-shaped surfaces (122).

5. The adjustable angle luminaire of claim 1, wherein, The lamp body (1) has a whole fan-shaped structure, and the protrusion (11) is arranged at the center angle position of the fan-shaped structure.

6. An angle adjustable luminaire according to claim 5, characterized in that A plurality of ribs (13) extending along the fan-shaped contour of the arc surface of the lamp body (1) are arranged on the arc surface of the lamp body (1).

7. The adjustable angle luminaire of claim 1, wherein, The plurality of positioning recesses (121) are distributed at equal angles around the axis of the protrusion (11).

8. The adjustable angle luminaire of claim 1, wherein, The protrusion (11) is a cylindrical shaft body, and the bearing hole (21) is a circular hole matched with the cylindrical shaft body.

9. The adjustable angle luminaire of claim 1, wherein, The opening end of the mounting barrel (22) faces the arc-shaped groove group (12).

10. The adjustable angle luminaire of claim 1, wherein, The back of the support frame (2) is provided with an elastic clamping assembly (3) for clamping installation, and the elastic clamping assembly (3) comprises a pair of elastically retractable flaps (31) and an elastic member (32) for providing opening force.

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