Lighting device capable of being flattened and folded
By optimizing the pivot position between the lamp head and the arm, and placing the pivot position closer to the end of the lamp head, the problems of large redundant gaps and unstable center of gravity in traditional lighting devices are solved, achieving compact folding and stable rotation, and improving the aesthetics and stability of the device.
Patent Information
- Application Number
- CN202520582962.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-28
AI Technical Summary
Traditional lighting fixtures suffer from problems such as large redundant gaps, excessive space occupation, and unstable center of gravity in the pivot connection design between the lamp head and the chassis, which affect the stability and aesthetics of the lighting fixture.
By optimizing the pivot position between the lamp head and the arm, the pivot position is set near the end of the lamp head, and the rotation axis is also near the end of the lamp head. Combined with the compact structural design, this achieves compact folding and stable rotation of the lamp head and the chassis.
This effectively reduces the redundant gap between the lamp head and the chassis, enabling the lighting device to be flattened and folded, reducing space occupation, and improving stability and aesthetics.
Smart Images
Figure CN223924657U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of light illumination, more particularly to a flat foldable lighting device. BACKGROUND
[0002] The lighting device is widely used in stage lighting, building landscape and other fields due to its large-area light-emitting surface and multi-angle adjustment capability, and is usually composed of a lamp head, a machine case and an arm connecting the two. In the traditional design, the pivot joint of the lamp head and the arm is usually arranged in the middle region of the lamp head to realize multi-angle rotation of the lamp head. During the adjustment of the angle, sufficient space needs to be reserved for the rotation of the lamp head between the lamp head and the machine case, resulting in a large gap between the lamp head and the machine case when the lamp head projects at an angle parallel to the machine case or is folded for storage after completing the work, which significantly increases the overall thickness. During installation, the lamp head protrudes from the bearing plane, damaging the flatness and aesthetics, and occupying too much storage space. Meanwhile, the long arm structure is prone to shaking due to the shift of the center of gravity, affecting the stability of the lighting.
[0003] Most of the existing improvement schemes compress the gap by reducing the size of the lamp head or adding multi-stage folding joints. However, the former directly leads to a reduction in the light-emitting area, and the latter increases the cost and failure rate due to the introduction of complex hinge mechanisms. Therefore, it is an urgent need for designers to optimize the layout of the pivot joint structure to achieve compact folding and flat installation while maintaining a large light-emitting surface and high adjustment freedom. SUMMARY
[0004] The utility model provides a flat foldable stage lamp to overcome at least one of the defects of the prior art, effectively reduce the redundant gap between the lamp head and the machine case by optimizing the pivot joint position of the lamp head and the arm, and realize flat folding.
[0005] To solve the above technical problems, the utility model adopts the technical scheme of a flat foldable stage lamp, which comprises a lamp head with a light-emitting surface, a machine case with an arm protruding from the top, the arm is pivotally connected to the lamp head, the two ends of the arm are connected to the first side of the lamp head and the second side of the machine case, respectively, the pivot joint position of the lamp head and the arm is located in the 1 / 3 region of the proximal end of the first side, the distance between the pivot joint position and the machine case allows the lamp head to rotate freely around the pivot joint position, and the lamp head has a folding state with the back surface close to the top of the machine case.
[0006] By setting the pivot position of the lamp head close to the end of the first side, the rotation axis of the lamp head is as close to the end of the lamp head as possible, compared with the traditional solution in which the rotation axis is set at the center of the lamp head. In this solution, the space between the lamp head and the case is kept to allow the lamp head to rotate freely, and the redundant gap between the two is effectively reduced. When the lamp head is in the folded state or when the light emitting surface needs to be projected at an angle parallel to the case, the lamp head and the case are more compact, achieving flat folding, facilitating storage and transportation, or reducing the space required for the overall installation of the lighting device.
[0007] Further, the projection of the pivot position on the second side is located in the 1 / 3 region near the end of the second side. By moving the rotation axis of the lamp head from the center of the lamp to the end of the lamp, the gap between the lamp head and the case is smaller, and the structure is more compact, whether the lamp head is in the folded state or the unfolded state.
[0008] Further, the connection position of the arm and the case covers at least 1 / 3 of the region near the end of the second side. By increasing the connection position between the arm and the case, the connection between the two is more stable, and even if the rotation axis of the lamp head is close to the end of the lamp, it can still rotate more stably around the pivot position, avoiding shaking due to unstable center of gravity.
[0009] Further, when the lamp head is in the folded state, the projection profile of the lamp head is entirely within the range defined by the case. When the lamp head switches to the folded state, it does not protrude from the case, making the structure of the lamp more compact and facilitating storage and installation.
[0010] Further, the lamp head is rectangular, and the first side is the short side of the lamp head. By making the rotation axis of the lamp head parallel to the long side of the lamp head, the center of gravity of the lamp is effectively lowered, and the rotation is more stable.
[0011] Further, the lamp head has a plurality of light emitting units arranged in an array, and the light emitting units are arranged in a rectangle. A larger light emitting surface is provided, which is suitable for use in scenarios that require large area rendering.
[0012] Further, it further includes a driving mechanism for driving the lamp head to rotate around the arm. The user can drive the lamp head to rotate by the driving mechanism to project at a specific angle, which is convenient to operate.
[0013] Further, the arm is fixedly connected to the case. The connection between the case and the arm is more stable, providing stronger support.
[0014] Further, the pivot joint position of the lamp head and the arm is located in the 1 / 5 region of the first side edge adjacent to the end. The rotation axis of the lamp head is arranged closer to the end of the lamp head, further reducing the gap between the lamp head and the cabinet.
[0015] Further, the back surface is further provided with a handle protruding away from the light emitting surface. By arranging the handle, the staff can rotate the lamp head.
[0016] Further, the handle is located on the side edge adjacent to the lamp head and the first side edge, and away from the pivot joint position. The side edge of the back surface provided with the handle is formed with a mounting slope, so that the thickness of the lamp head gradually decreases to the edge position. The handle is located near the edge position of the mounting slope. The mounting slope is arranged to reserve space for mounting the handle, so that the whole lamp structure of the lighting device is more compact.
[0017] Further, the side edge adjacent to the lamp head and the first side edge and close to the pivot joint position is provided with a rotation avoiding surface on the back surface to avoid the cabinet. When the lamp head rotates, the rotation avoiding surface effectively prevents the mutual interference between the lamp head and the cabinet, allowing the lamp head to rotate freely. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 is a structural schematic view of the lighting device in a folded state.
[0019] Figure 2 is a structural schematic view of the lighting device in an unfolded state.
[0020] Figure 3 is a structural schematic view of the lighting device after the lamp head and the arm are disassembled.
[0021] Figure 4 is a side structural schematic view of the lighting device in a folded state.
[0022] Figure 5 is a structural schematic view of the lighting device in another angle in a folded state.
[0023] IN THE DRAWINGS:
[0024] 100, lamp head; 110, light emitting surface; 120, back surface; 130, first side edge; 140, rotation avoiding surface; 150, mounting slope; 151, avoiding groove; 200, arm; 160, light emitting unit; 210, knob; 300, cabinet; 310, second side edge; 320, top surface; 330, recess; 410, pivot joint position; 420, rotation axis; 500, handle; 600, heat sink. DETAILED DESCRIPTION
[0025] The accompanying drawings are included to provide a further understanding of the present application, and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments of the present application and, together with the description, serve to explain the principles of the present application. In the drawings:
[0026] As shown in Figure 1 , Figure 2 and Figure 4 , a flat foldable lighting device, comprising a lamp head 100 with a light emitting surface 110, a cabinet 300 with a top 320, and an arm 200 protruding from the top 320 of the cabinet 300, the arm 200 is pivotally connected to the lamp head 100, the arm 200 is connected to the first side edge 130 of the lamp head 100 and the second side edge 310 of the cabinet 300 respectively, the pivot joint 410 between the lamp head 100 and the arm 200 is located within 1 / 3 of the length of the first side edge 130, the distance between the pivot joint 410 and the cabinet 300 allows the lamp head 100 to rotate freely around the pivot joint 410, and the lamp head 100 has a back surface 120 which is close to the top 320 of the cabinet 300 when the lamp head 100 is in the folded state.
[0027] By limiting the pivot joint 410 between the lamp head 100 and the arm 200 to the end of the first side edge 130, the rotation axis 420 of the lamp head 100 is as close to the end of the lamp head 100 as possible, compared to the traditional solution where the rotation axis 420 is located at the center of the lamp head 100, in this solution, the space between the cabinet 300 and the lamp head 100 allows the lamp head 100 to rotate freely, and effectively reduces the redundant gap between the two. When the lamp head 100 is in the folded state or when the light emitting surface 110 needs to project at an angle parallel to the cabinet 300, the space between the lamp head 100 and the cabinet 300 is more compact, achieving flat folding, facilitating storage and transportation, or reducing the space required for the overall installation of the lighting device. Preferably, the lighting device is a spotlight for landscape rendering, or a colored light for stage effect rendering.
[0028] Preferably, the back surface 120 and the top 320 of the cabinet 300 are approximately the same shape and size, so that when the lamp head 100 is in the folded state, the lamp head 100 does not protrude too much from the cabinet 300.
[0029] Preferably, the light-emitting surface 110 is rectangular, the chassis 300 is cuboid, and its top surface 320 is a rectangle adapted to the light-emitting surface 110. In other embodiments, both the light-emitting surface 110 and the top surface 320 of the chassis 300 are circular.
[0030] Preferably, the side of the housing 300 away from the lamp head 100 is provided with a recess 330 for workers to grab, so as to facilitate moving the lighting device.
[0031] Preferably, with the top surface 320 of the chassis 300 as the reference line, the rotation angle range of the lamp head 100 is 0-180 degrees.
[0032] like Figure 5 As shown, preferably, the lighting device has two arms 200, which are arranged opposite to each other on two sides of the housing 300, that is, the number of the first side 130 and the second side 310 are both 2. The backlight surface 120 of the lamp head 100 is provided with a heat sink 600 for timely heat dissipation, and the housing 300 is equipped with a power supply and electronic components for controlling the lighting device.
[0033] like Figures 1 to 3 As shown, in a preferred embodiment of this utility model, the projection of the pivot 410 on the second side 310 is located in the 1 / 3 region of the second side 310 near its end. By moving the rotation axis 420 of the lamp head 100 from the center of the lamp to a position closer to the end of the lamp, the gap between the lamp head 100 and the housing 300 is smaller and the structure is more compact, whether the lamp head 100 is folded or unfolded.
[0034] Preferably, one side of the arm 200 is perpendicular to the top surface 320 of the chassis 300 to provide more stable support.
[0035] Preferably, the projection of the pivot position 410 on the second side 310 is located at the end of the second side 310.
[0036] In other embodiments of this utility model, the arm 200 can be tilted as a whole.
[0037] In a preferred embodiment of this invention, the connection point between the arm 200 and the housing 300 covers at least one-third of the area adjacent to the end of the second side 310. By increasing the connection point between the arm 200 and the housing 300, the connection between the two is made more stable. Even if the rotation axis 420 of the lamp head 100 is close to its own end, it can still rotate more stably around the pivot point 410, avoiding swaying due to instability of the center of gravity.
[0038] Preferably, the connecting position of the arm 200 and the case 300 is extended from the end of the second side 310 to the center thereof.
[0039] As shown in Figure 1 and Figure 4 In the preferred embodiment of the present application, when the lamp head 100 is in the folded state, the projection profile of the lamp head 100 is entirely within the range defined by the case 300. When the lamp head 100 is switched to the folded state, it does not protrude from the case 300, making the structure of the entire lamp more compact and facilitating storage and installation. It should be noted that even if the lamp head 100 slightly exceeds the range defined by the case 300, it is still within the protection scope of the present application.
[0040] Preferably, when the lamp head 100 is in the folded state, the side of the lamp head 100 is flush with the side of the case 300.
[0041] In the preferred embodiment of the present application, the lamp head 100 is rectangular, and the first side 130 is the short side of the lamp head 100. This makes the rotation axis 420 of the lamp head 100 parallel to the long side of the lamp head 100, effectively lowering the center of gravity of the entire lamp and making rotation more stable.
[0042] In the preferred embodiment of the present application, the lamp head 100 has a plurality of light emitting units 160 arranged in an array, and the light emitting units 160 are arranged in a rectangle. A larger light emitting surface 110 is provided, which is suitable for use in scenarios that require large-area rendering.
[0043] Preferably, the light emitting unit 160 is an LED.
[0044] In the preferred embodiment of the present application, a driving mechanism is further included for driving the lamp head 100 to rotate around the arm 200. The user can drive the lamp head 100 to rotate through the driving mechanism to project at a specific angle, which is convenient to operate.
[0045] Preferably, the driving mechanism includes a motor providing driving force, a driven wheel connected to the pivot shaft of the lamp head 100, and a transmission belt simultaneously sleeved on the motor driving shaft and the driven wheel.
[0046] In other embodiments of the present application, the lamp head 100 can be manually rotated to achieve the desired light projection angle.
[0047] In the preferred embodiment of the present application, the arm 200 is fixedly connected to the case 300. The connection between the case 300 and the arm 200 is more stable, providing stronger support.
[0048] Preferably, the arm 200 is integrally formed with the cabinet 300.
[0049] In other embodiments of the present application, the arm 200 is pivoted to the cabinet 300, so that the arm 200 can rotate around the cabinet 300.
[0050] In preferred embodiments of the present application, the pivoting position 410 of the lamp head 100 and the arm 200 is located within the 1 / 5 region of the end of the first side edge 130, so that the rotation axis 420 of the lamp head 100 is closer to the end of the lamp head 100, further reducing the gap between the lamp head 100 and the cabinet 300.
[0051] In preferred embodiments of the present application, the backplane 120 is further provided with a handle 500 protruding away from the light exit surface 110. The handle 500 is provided to facilitate the rotation of the lamp head 100 by the staff. The lamp head 100 has two handles 500, which are evenly arranged on one side of the lamp head 100.
[0052] In preferred embodiments of the present application, the handle 500 is located on the side edge of the lamp head 100 adjacent to the first side edge 130 and away from the pivoting position 410. The side edge of the backplane 120 provided with the handle 500 is formed with a mounting inclined surface 150, so that the thickness of the lamp head 100 gradually decreases towards the edge position. The handle 500 is located near the edge position of the mounting inclined surface 150. The mounting inclined surface 150 is provided to reserve space for the installation of the handle 500, so that the overall structure of the lighting device is more compact.
[0053] Preferably, the lamp head 100 is provided with an avoidance slot 151 for the staff to insert their hands at the position corresponding to the handle 500.
[0054] In preferred embodiments of the present application, the side edge of the lamp head 100 adjacent to the first side edge 130 and close to the pivoting position 410 is provided with a rotation avoidance surface 140 on the backplane 120 to avoid the cabinet 300. When the lamp head 100 rotates, the rotation avoidance surface 140 effectively prevents the mutual interference between the lamp head 100 and the cabinet 300, allowing the lamp head 100 to rotate freely.
[0055] Preferably, the rotation avoidance surface 140 can be a flat inclined surface or an arc surface.
[0056] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, on the basis of the above description, other different forms of changes or variations can also be made. Here, it is not necessary and also impossible to exhaust all the implementation modes. Any modification, equivalent replacement and improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.
Claims
1. A flat-foldable lighting device, characterized in that, The lamp head (100) has a light emitting surface (110), and the machine case (300) has a top with arms (200) extending therefrom, the arms (200) are pivotally connected to the lamp head (100), and the two ends of the arms (200) are connected to the first side edge (130) of the lamp head (100) and the second side edge (310) of the machine case (300) respectively, the pivot connection position (410) between the lamp head (100) and the arms (200) is located in the 1 / 3 region of the end of the first side edge (130), the distance between the pivot connection position (410) and the machine case (300) allows the lamp head (100) to rotate freely around the pivot connection position (410), and the lamp head (100) has a folding state with the back surface (120) close to the top of the machine case (300).
2. The illumination device of claim 1, wherein The projection of the pivot connection position (410) on the second side edge (310) is located in the 1 / 3 region of the end of the second side edge (310).
3. The illumination device of claim 2, wherein, The connection position between the arms (200) and the machine case (300) covers at least the 1 / 3 region of the end of the second side edge (310).
4. The illumination device of claim 1, wherein When the lamp head (100) is in the folding state, the projection contour of the lamp head (100) is entirely located within the range defined by the machine case (300).
5. The illumination device of claim 1, wherein, The lamp head (100) is rectangular, and the first side edge (130) is the short side of the lamp head (100).
6. The illumination device of claim 1, wherein, The lamp head (100) has a plurality of light emitting units (160) arranged in an array, and the light emitting units (160) are arranged in a rectangle.
7. The illumination device of claim 1, wherein A driving mechanism is further included to drive the lamp head (100) to rotate around the arms (200).
8. The illumination device of claim 1, wherein, The arms (200) are fixedly connected to the machine case (300).
9. The illumination device of claim 1, wherein, The pivot connection position (410) between the lamp head (100) and the arms (200) is located in the 1 / 5 region of the end of the first side edge (130).
10. The illumination device of claim 1, wherein, The back surface (120) is further provided with a handle (500) protruding away from the light emitting surface (110).
11. The illumination device of claim 10, wherein, The handle (500) is located on the side edge of the lamp head (100) adjacent to the first side edge (130) and away from the pivot connection position (410), and the side edge of the back surface (120) provided with the handle (500) is formed with a mounting inclined surface (150) to gradually reduce the thickness of the lamp head (100) toward the edge position, and the handle (500) is located close to the edge position of the mounting inclined surface (150).
12. The illumination device of claim 1, wherein, The side edge of the lamp head (100) adjacent to the first side edge (130) and close to the pivot connection position (410) is provided with a rotation avoiding surface (140) on the back surface (120) to avoid the machine case (300).