Rotating driving structure of a lamp and control method of lamp rotation

Abstract

The application provides a lamp and a rotating driving structure thereof. The rotating driving structure comprises a mounting part, a movable support, a first transmission part and a driving assembly. The mounting part comprises a ring wall extending along a height direction. The movable support extends into the inner side of the ring wall at least partially and is arranged to rotate along a first axis circumferentially relative to the mounting part. The movable support comprises a shaft seat adapted to be connected with a lamp body. The lamp body is capable of swinging along a second axis in the shaft seat. The first transmission part is connected to the movable support. The first transmission part comprises a sliding block. The sliding block is movably connected with the lamp body. The sliding block is arranged to move reciprocally along a lifting direction under the driving of the transmission part and drive the lamp body to swing. The driving assembly is operatively connected to the movable support. The driving assembly is arranged to be in transmission connection with the first transmission part. The application also provides a control method for the rotation of the lamp. The application realizes simple and easy stepless adjustment of the angle of the lamp head, accurate positioning, reliable limiting and no pollution of the light distribution device of the lamp during the adjustment process.

Description

Technical Field

[0001] This application relates to the field of lighting fixtures, and more particularly to a rotation drive structure for a lighting fixture and a method for controlling the rotation of the lighting fixture, thereby enabling convenient adjustment of the lamp head angle. Background Technology

[0002] Most spotlights on the market today have adjustable lamp head angles to meet the lighting angle requirements of different scenarios. However, in practical applications, especially for lamps with small mounting apertures, adjusting the lamp head angle after installation presents several inconveniences. The main problems are: (1) Users may find it difficult to quickly find the appropriate adjustment position after the lamp is installed, and may use violent methods to adjust it, which may lead to damage to the internal structure of the lamp and affect the service life of the lamp. (2) The torque consistency during lamp head adjustment is poor, making it difficult to pinpoint the exact point during adjustment. This can easily lead to over-adjustment or under-adjustment, making it impossible to quickly achieve the expected lighting angle. (3) Users may touch the lens or other optical structure of the lamp during operation, which will cause the surface to be contaminated, resulting in interference such as glare. The contamination layer can also cause heat concentration inside the lamp body, which will not only reduce visual comfort, but also shorten the life of the lamp.

[0003] Therefore, those skilled in the art are dedicated to developing a rotating drive structure for lamps that enables easy and accurate adjustment of the lamp head angle, in order to solve the above problems. Summary of the Invention

[0004] In view of the above-mentioned defects in the prior art, the technical problem to be solved by this application is the poor accuracy of the lamp head angle adjustment in existing lamps, and the problem that touching affects the light output and service life.

[0005] To achieve the above objectives, in a first aspect, this application provides a rotation drive structure for a lamp, comprising: a mounting portion including an annular wall extending in the height direction; a movable bracket, at least partially extending into the inner side of the annular wall, configured to rotate circumferentially relative to the mounting portion along a first axis, including a bearing adapted to be connected to a lamp body, the lamp body being oscillating along a second axis in the bearing; a first transmission portion connected to the movable bracket, the first transmission portion including a slider movably connected to the lamp body, the slider being configured to reciprocate in the lifting direction under transmission drive and drive the lamp body to oscillate; and a drive assembly operably connected to the movable bracket, the drive assembly being configured to be transmissionally connected to the first transmission portion.

[0006] In one optional embodiment, the drive assembly includes a second transmission part and an actuation part. The actuation part is circumferentially matched with the second transmission part to rotate synchronously. The second transmission part is provided with a drive gear. The first transmission part includes a screw and a gear pair that are fixedly connected. The slider and the screw are connected by a threaded transmission. The drive gear and the gear pair are meshed and connected in a transmission manner. The torque of the meshing rotation of the drive gear and the gear pair is less than the torque of the rotation of the movable bracket relative to the mounting part, so that the drive assembly can drive the first transmission part to move when it rotates relative to the movable bracket.

[0007] In one optional embodiment, the movable bracket is a hollow, surrounding structure. The driving component extends at least partially into the inner side of the movable bracket. The actuating part is capable of reciprocating relative to the movable bracket along a first axis. The actuating part includes an operable end face, which is opposite to the bottom end of the movable bracket and is adapted to cooperate with the movable bracket. The actuating part has a first position state and a second position state. In the first position state, the operable end face is separated from the movable bracket, and the second transmission part is capable of rotating relative to the movable bracket. In the second position state, the operable end face is connected to the movable bracket and can drive the movable bracket to rotate along the first axis.

[0008] In one alternative embodiment, the bottom end of the movable support and the operable end face are connected by a toothed engagement.

[0009] In one alternative embodiment, the actuating part and the second transmission part are detachably connected by a snap fastener. The actuating part or the second transmission part is provided with a slot for the snap fastener to engage and move. The opening of the slot extends along the height direction.

[0010] In one alternative embodiment, the actuating part and the second transmission part are connected by an elastic member, and the actuating part is configured to move away from the second transmission part under the force of the elastic member.

[0011] In one alternative embodiment, the second transmission part includes a limiting cover that extends radially outward from the drive gear and rotates in the movable bracket, with the limiting cover covering the actuating part.

[0012] In one alternative embodiment, the actuating part and the second transmission part are inserted and engaged along the first axis direction to form a circumferential anti-rotation.

[0013] In one alternative embodiment, the first axis and the second axis are perpendicular.

[0014] In one optional embodiment, an annular groove is provided on the inner side of the annular wall of the mounting part, and a plurality of external protrusions are installed in the outer wall of the movable bracket corresponding to the annular groove. The external protrusions are arranged circumferentially and movably fitted into the annular groove, so that the mounting part is circumferentially positioned relative to the mounting part.

[0015] Secondly, this application provides a lamp, including a lamp body and the rotation drive structure described in the first aspect. The lamp body includes a lamp housing and a lamp head. The lamp housing is provided with a swing shaft that is movably coupled to a bearing seat, and a sliding shaft that is movably coupled to a slider. The lamp head is provided with an optical component facing a movable bracket. The drive component is embedded in the inner side of the movable bracket. The drive component is provided with a light emission channel through which the light emitted by the optical component passes. The ring wall of the mounting part surrounds the light emission channel.

[0016] In one alternative embodiment, the slider includes two horizontal plates spaced apart along the lifting direction, and a sliding pivot is located between the two horizontal plates. The two horizontal plates form a clamping constraint on the pivot, and the sliding pivot can rotate and move within the space between the two horizontal plates simultaneously.

[0017] In one alternative embodiment, the lamp housing has an active space suitable for accommodating the first transmission part, and a sliding shaft is formed on the inner sidewall of the active space.

[0018] Thirdly, this application provides a method for controlling the rotation of a lamp. The method uses the lamp described in the second aspect, in which a driving component can reciprocate relative to a movable bracket along a first axis. The method includes the following steps: when not subjected to an external operating force, the driving component moves away from the movable bracket; the driving component is operated to rotate relative to the movable bracket, driving the first transmission part to move and causing the lamp body to swing along a second axis; an external force is applied to the driving component, causing the driving component to move toward the movable bracket and form a linkage connection; the driving component is operated to drive the movable bracket to rotate synchronously, driving the lamp body to rotate around the first axis.

[0019] The lamp and its rotation drive structure of this application have the following beneficial effects: (1) The actuator of the drive component serves as the operating end, and the user can directly adjust it through the actuator without having to find a hidden force point. The operation is convenient and labor-saving, and the lamp head can be rotated in the circumferential direction and tilted to meet the lighting needs of various scenarios. (2) Ensure torque consistency and achieve precise positioning. A combination of gear transmission and screw transmission is adopted. The torque settings of the active gear and gear pair are reasonable. The screw transmission of the slider can achieve stepless adjustment. The torque is stable and can be precisely fixed during adjustment, avoiding over-adjustment or under-adjustment. (3) The drive component is embedded in the inner side of the movable bracket. During adjustment, the user's hands or tools will not come into contact with the optical components of the lamp head, which effectively avoids contamination of the light distribution device, ensures visual comfort, and extends the service life of the lamp.

[0020] It should be understood that the teachings of this application are not required to achieve all the beneficial effects described above, but rather that a specific technical solution can achieve a specific technical effect, and other embodiments of this application can also achieve beneficial effects not mentioned above. Attached Figure Description

[0021] The above and other objects, features, and advantages of exemplary embodiments of this application will become readily apparent from the following detailed description taken in conjunction with the accompanying drawings. Several embodiments of this application are illustrated in the drawings by way of example and not limitation, in which: Figure 1 This is a longitudinal cross-sectional structural diagram of one embodiment of the rotation drive structure of the lamp in this application.

[0022] Figure 2 This is a schematic diagram of one embodiment of the rotation drive structure of the lamp in this application.

[0023] Figure 3 This is a schematic diagram of one embodiment of the movable bracket of the rotation drive structure of this application.

[0024] Figure 4 This is a schematic diagram of an embodiment of the second transmission part of the rotation drive structure of this application.

[0025] Figure 5 This is an exploded structural diagram of the lighting fixture and rotation drive structure of this application.

[0026] Figure 6 This is a cross-sectional structural schematic diagram of one embodiment of the lighting fixture of this application.

[0027] Figure 7 This is a structural schematic diagram showing the connection relationship between the lamp body and the first transmission part in the lamp fixture of this application.

[0028] Figure 8 This is a schematic diagram illustrating the usage state of the lighting fixture described in this application.

[0029] The components include: 1. Mounting part, 11. Ring wall, 12. Ring groove, 13. Face ring, 2. Movable bracket, 21. Shaft seat, 22. Stop frame, 23. Abutment ring, 24. Slide groove, 25. Spring pin, 26. Limiting protrusion, 3. First transmission part, 31. Slider, 311. Horizontal plate, 32. Screw, 33. Gear pair, 4. Drive assembly, 41. Second transmission part, 411. Drive gear, 412. Limiting cover, 413. Slot, 414. Rib, 42. Actuating part, 421. Operable end face, 422. Buckle, 423. Embedded ring, 424. Strip groove, 425. Annular side wall, 426. Anti-slip texture, 5. Lamp body, 51. Lamp housing, 52. Lamp head, 53. Swinging shaft, 54. Sliding shaft, 55. Optical assembly, 6. Spring, 7. Ball bearing, L1. First axis, L2. Second axis, S. Lifting direction. Detailed Implementation

[0030] To make the objectives, features, and advantages of this application more apparent and understandable, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.

[0032] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0033] The first aspect of this application provides a rotation drive structure suitable for use in lighting fixtures, which includes at least a mounting part 1, a main bracket 2, a first transmission part 3, and a drive assembly 4.

[0034] like Figure 1 and Figure 2 As shown, the mounting part 1 includes an annular wall 11 extending along the height direction; the main bracket 2 at least partially extends into the inner side of the annular wall 11, and is configured to rotate circumferentially relative to the mounting part 1 along a first axis L1. The main bracket 2 includes a bearing 21 adapted to connect with a lamp body 5, and the lamp body 5 can swing along a second axis L2 in the bearing 21. The specific implementation of the annular wall 11 of the mounting part 1 may include a circular annular wall, etc., as long as it can limit the movement of the main bracket 2 and allow the main bracket 2 to rotate relative to it. A circular annular wall has better rotational adaptability and lower frictional resistance during relative rotation. The connection between the bearing 21 and the lamp body 5 can be a rotating shaft fit, a bearing fit, etc. In an optional embodiment, a bearing 21 is provided on each side of the main bracket 2 with the first axis L1 as the center, and the center of the two bearings 21 is passed through the second axis L2.

[0035] The first transmission unit 3 is connected to the main support 2. The first transmission unit 3 includes a slider 31, which is movably connected to the lamp body 5. The slider 31 is configured to reciprocate along the lifting direction S under the drive of the transmission, and drive the lamp body 5 to swing. The movable connection between the slider 31 and the lamp body 5 can be achieved by means of a rotating shaft connection, a sliding groove, etc., as long as it can enable the slider 31 to drive the lamp body 5 to swing around the second axis L2 when it is lifted. The rotating shaft connection can ensure the stability of the transmission, while the sliding groove can accommodate the relative displacement between the slider 31 and the lamp body 5. Whether it is a rotating shaft connection or a sliding groove, sufficient space must be provided at the joint to avoid transmission jamming.

[0036] The drive assembly 4 is connected to the main support 2 and has an operable structure. The drive assembly 4 is configured to be connected to the first transmission part 3. Specific implementations of the transmission connection between the drive assembly 4 and the first transmission part 3 may include gear transmission, belt transmission, chain transmission, etc. In a preferred embodiment, gear transmission is used to ensure transmission accuracy and torque stability, and to avoid problems such as slippage and torque fluctuations during adjustment.

[0037] In one embodiment of this application, the drive assembly 4 employs a gear transmission method. The drive assembly 4 includes a second transmission part 41 and an actuating part 42. The actuating part 42 is circumferentially matched with the second transmission part 41 to rotate synchronously. The second transmission part 41 contains a drive gear 411. The first transmission part 3 includes a screw 32 and a gear pair 33 fixedly connected. The slider 31 and the screw 32 are connected by a threaded transmission. The drive gear 411 and the gear pair 33 are meshed and connected in a transmission manner. The slider 31 may contain a nut that is connected to the screw 32, or it may have an internal threaded structure that is connected to the screw 32 in a transmission manner, allowing the slider 31 to move up and down on the screw 32 as it rotates. The threaded gear pair 33 can be a cylindrical gear pair, a bevel gear pair, etc. Figure 2 The scheme shown uses a cylindrical gear pair, which has a simple structure, high transmission efficiency, and is suitable for scenarios with parallel transmission directions. In this scheme, the lifting direction of the slider 31 is parallel to the first axis L1. Furthermore, the torque of the meshing rotation of the drive gear 411 and the gear pair 33 is less than the torque of the rotation of the main bracket 2 relative to the mounting part 1. This ensures that when the drive component 4 rotates relative to the main bracket 2, it can drive the first transmission part 3 to move, and the main bracket 2 will not follow the rotation of the drive component 4; only the first transmission part 3 moves, achieving precise adjustment of the swing angle of the lamp body 5. In order to easily drive the first transmission part 3, the torque of the meshing rotation of the drive gear 411 and the gear pair 33 should be designed to be as small as possible.

[0038] Furthermore, in such Figure 3In one specific embodiment shown, the main support 2 is a hollow, surrounding structure. The driving component 4 extends at least partially into the inner side of the main support 2. Optionally, the main support 2 adopts a circular hollow surrounding structure with an outer surrounding wall corresponding to the mounting part 1. The actuating part 42 is capable of reciprocating relative to the main support 2 along the first axis L1. The actuating part 42 includes an operable end face 421, which is opposite to the bottom end of the main support 2 and is adapted to cooperate with and connect to the main support 2. During the operation of the actuating part 42, the actuating part 42 has a first position state and a second position state. In the first position state, the operable end face 421 is separated from the main support 2, and the second transmission part 41 can rotate relative to the main support 2. In the second position state, the operable end face 421 is connected to the main support 2 and can drive the main support 2 to rotate along the first axis L1. The operable end face 421 may be provided with a structure that facilitates clamping or contact fixation, allowing external tools or user fingers to connect to or apply force to it, realizing activities such as pushing, pulling, or rotating.

[0039] Furthermore, in one embodiment, the bottom end of the main support 2 and the operable end face 421 are connected by a toothed engagement. The toothed engagement can adopt spur teeth, helical teeth, or other engagement methods. Helical teeth engagement has a larger contact area, smoother transmission, and more reliable torque transmission, which can effectively prevent slippage when adjusting the rotation of the main support 2; spur teeth engagement is simple to process and has a lower cost, making it suitable for scenarios where the requirements for transmission smoothness are not high.

[0040] In one embodiment, the actuating part 42 and the second transmission part 41 are detachably connected by a snap-fit ​​structure, which facilitates installation and provides operability. A slot 413 is provided on the actuating part 42 or the second transmission part 41 for the snap-fit ​​422 to engage, connect, and move. The opening of the slot 413 extends along the height direction. For example, a slot 413 is provided on the second transmission part 41, and a corresponding snap-fit ​​422 is provided on the actuating part 42. The circumferential width of the slot 413 matches the snap-fit ​​422. The engagement of the snap-fit ​​422 and the slot 413 enables axial movement of the actuating part 42 relative to the second transmission part 41 while ensuring synchronous circumferential rotation. The number of slots 413 can be set according to actual needs, evenly distributed circumferentially to ensure uniform force distribution. Furthermore, the opening of the slot 413 extends along the height direction, and the buckle 422 includes a protruding hook-shaped block, so that the buckle 422 can move axially in the slot 413, realizing the position change of the actuating part 42 relative to the second transmission part 41, without disengaging from each other.

[0041] In one embodiment, the actuating part 42 and the second transmission part 41 are connected by an elastic element, and the actuating part 42 tends to move away from the second transmission part 41 under the force of the elastic element. The elastic element can be a spring 6, a spring sheet, etc. The elastic restoring force of the spring is stable, which can ensure that the actuating part 42 is always in the first position when there is no external force, avoiding the main support 2 from rotating due to misoperation; the spring sheet has a compact structure, occupies little space, and is suitable for miniaturized structural design.

[0042] In one alternative implementation, such as Figure 4 As shown, the second transmission unit 41 includes a limiting cover 412, which extends radially outward from the drive gear 411 and rotates within the main support 2. The limiting cover 412 covers the actuating unit 42. The function of the limiting cover 412 is to connect to the actuating unit 42 and limit its relative movement. Correspondingly, the actuating unit 42 has an inner ring 423 corresponding to the limiting cover 412. The inner ring 423 extends along the height direction and is fitted into the inner side of the limiting cover 412. Slots 413 are distributed on the outer periphery of the limiting cover 412, and locking blocks are distributed on the outer periphery of the inner ring 423. Through the locking relationship between the two, the second transmission unit 41 and the actuating unit 42 are limited in their relative axial movement. Furthermore, springs 6 are distributed and installed on the inner ring 423. The other end of spring 6 is elastically abutted against the limiting cover 412. After the limiting cover 412 is closed, the actuating part 42 and the second transmission part 41 are elastically connected.

[0043] like Figure 5 The diagram shown is an exploded view of the components of this application. As a structure that rotates circumferentially as a whole, the height direction of each component can be parallel to the direction of the first axis L1. In an optional embodiment, the actuating part 42 and the second transmission part 41 are inserted and fitted along the direction of the first axis L1. The inner ring 423 of the actuating part 42 has a strip groove 424 that is recessed inward along the height direction. The opening of the strip groove 424 faces the second transmission part 41. The second transmission part 41 has a rib 414 that matches the strip groove 424. Optionally, the rib 414 is provided on the inner wall of the limiting cover 412. When the second transmission part 41 and the actuating part 42 are connected, the rib 414 is inserted and fitted into the strip groove 424. The two are circumferentially fixed to achieve synchronous rotation, and can move relative to each other axially. This can be combined with the aforementioned snap-fit ​​structure to form a fit that prevents circumferential rotation and allows relative sliding in the axial direction.

[0044] In one embodiment, the limiting cover 412 is restricted and installed in the main support 2. The restricted installation of the limiting cover 412 can be achieved by a shape-fitting method such as a stepped structure, which can achieve axial restriction of the limiting cover 412, prevent the limiting cover 412 from moving along the first axis L1, and make the limiting cover 412 stably rotate in the main support 2.

[0045] In one embodiment, a plurality of balls 7 are provided between the limiting cover 412 and the main support 2, forming a rolling fit between the limiting cover 412 and the main support 2 through the balls 7. When the driving component 4 rotates, the inner wall of the main support 2 is subjected to friction due to external force, resulting in wear. The arrangement of the balls 7 can convert the sliding friction between the limiting cover 412 and the main support 2 into rolling friction, significantly reducing frictional resistance, making the limiting cover 412 rotate more smoothly relative to the main support 2, while reducing component wear and improving service life. The number of balls 7 can be set according to the size of the limiting cover 412, and they are evenly distributed between the mating surfaces of the two to ensure uniform force distribution. Figure 3 In one specific embodiment shown, an abutment ring 23 is formed radially inward in the main support 2. The second transmission part 41 is limited in the main support 2 by the abutment ring 23. A groove 24 suitable for the rolling of the ball 7 is formed on the end face of the abutment ring 23 on the side opposite to the limiting cover 412. The ball 7 is installed between the abutment ring 23 and the limiting cover 412 along the groove 24.

[0046] In one embodiment, an annular groove 12 is provided on the inner side of the annular wall 11 of the mounting part 1. A plurality of external protrusions are installed on the outer wall of the main bracket 2 corresponding to the annular groove 12. The external protrusions are circumferentially arranged and movably fitted into the annular groove 12, thereby circumferentially positioning the mounting part 1 relative to the mounting part 1. The external protrusions can be spring pins, ball bearings, fixing protrusions, etc., such as... Figure 1 In the implementation scheme, a spring pin 25 is selected, which can use its elastic force to abut against the inner wall of the annular groove 12 to achieve elastic limiting, adapt to the dimensional tolerance of the annular groove 12, prevent loosening, and reduce rotational friction. The number of external protrusions can be set according to the size of the main support 2, and they are evenly distributed circumferentially to ensure uniform force distribution and prevent the main support 2 from tilting when rotating.

[0047] The second aspect of this application provides a lighting fixture, which includes a lamp body 5 and the rotation drive structure described in the first aspect. In the rotation drive structure, the mounting part 1 includes an annular wall 11 extending along the height direction, within which a main support 2 is mounted. The main support 2 is rotatably connected to the inner side of the annular wall 11. A first transmission part 3 is connected to the main support 2 and includes a slider 31. The slider 31 is movably connected to the lamp body 5 and can reciprocate along a lifting direction S, driving the lamp body 5 to swing. The lifting direction S can be parallel to the height direction or form an angle. A drive assembly 4 is embedded inside the main support 2 and is drively connected to the first transmission part 3. The lamp body 5 includes a lamp housing 51 and a lamp head 52. The lamp housing 51 has a swing shaft 53, which is movably connected to the bearing 21 of the main support 2, and a sliding shaft 54, which is movably connected to the slider 31. The lamp head 52 is the component installed in the lamp housing 51 that provides illumination. An optical component 55 is located on the lamp head 52 facing the main support 2. A drive component 4 is embedded inside the main support 2. The drive component 4 has a light-emitting channel through which the light emitted from the optical component 55 passes. The annular wall 11 of the mounting part 1 surrounds the light-emitting channel. The optical component 55 includes light-distributing devices such as lenses and reflectors. The drive component 4 is embedded inside the main support 2 and has a light-emitting channel, ensuring that the user's hand or adjustment tools will not come into contact with the optical component 55 during adjustment operations, thus preventing contamination of the optical component 55. Figure 6 As shown, the drive assembly 4 includes a second transmission part 41 and an actuation part 42, both of which are configured as hollow, encircling structures, allowing light to pass through the light channel inside and then be emitted. Figure 6 In the state shown, the actuator 42 is in the first position state, at which time the operable end face 421 and the main support 2 are separated.

[0048] The mounting part 1 is suitable for installation on mounting surfaces such as ceilings and cabinet shelves. It includes a face ring 13 located at one outward end of the mounting part 1, which fits against the mounting surface. An elastic buckle can be provided on the outer side of the mounting part 1 to abut against the other side, allowing the lamp body 5 to be installed on the ceiling or inside a cabinet, achieving recessed installation. The actuating part 42 includes an annular sidewall 425 that gradually expands radially along the light emission direction. This sidewall can be curved or straight. The end face of the actuating part 42 and the face ring 13 of the mounting part 1 are aligned on the same plane, achieving an aesthetically pleasing effect. Figure 6 In the illustrated embodiment, the actuator 42 can be designed as a decorative cover, which controls the range of light emitted from the light source, absorbs light with a large emission angle, and prevents light leakage. The operable end face 421 of the actuator 42 can be configured with a structure with anti-slip texture 426 to facilitate user operation, improve the operating feel, and prevent slippage during adjustment. During operation, simply pressing the finger against the operable end face 421 is sufficient for rotation.

[0049] Furthermore, the first axis L1 and the second axis L2 are perpendicular. With this setting, on the one hand, the lamp body 5 can rotate circumferentially along the first axis L1, and on the other hand, the lamp head 52 can tilt and swing along the second axis L2. Through the combination of the two, lighting needs in different directions can be met, adapting to a variety of application scenarios, such as lighting angle adjustment in shopping malls, exhibition halls, and homes.

[0050] In one implementation, such as Figure 2 and Figure 7 As shown, the slider 31 includes two horizontal plates 311 spaced apart along the lifting direction S. A sliding shaft 54 ​​is located between the two horizontal plates 311, and the two horizontal plates 311 form a clamping constraint on the shaft. The sliding shaft 54 ​​can simultaneously rotate and move within the space between the two horizontal plates 311. The clamping constraint of the two horizontal plates 311 ensures the stability of the sliding shaft 54 ​​and prevents it from deviating when the slider 31 lifts or lowers. Since the trajectory of the lamp body 5's swing is an arc centered on the second axis L2, while the lifting trajectory of the slider 31 is along a straight line, the sliding shaft 54 ​​is designed to rotate and move between the two horizontal plates 311. This adapts to the swing of the lamp body 5 around the second axis L2, preventing transmission jamming and ensuring smooth adjustment. The horizontal plates 311 can be made of the same material as the slider 31 and can be integrally molded.

[0051] In one embodiment, the lamp housing 51 has a movable space suitable for accommodating the first transmission part 3, making the overall structure of the lamp compact. The sliding shaft 54 ​​is formed on the inner wall of the movable space. The first transmission part 3 includes a screw 32 and a gear pair 33 fixedly connected. The movable space in the lamp housing 51 ensures that the positional changes of the screw 32 and the slider 31 along the screw 32 are not interfered with by the structure of the lamp housing 51. One end of the screw 32 abuts against the main support 2. The gear pair 33 is disposed between the driving gear 411 of the second transmission part 41 and the outer wall of the main support 2. A stop frame 22 is provided between the slider 31 and the main support 2. The stop frame 22 is fixedly installed relative to the main support 2 and is passed through by the screw 32. The function of the stop frame 22 is to limit the lifting stroke of the slider 31, preventing the slider 31 from moving excessively and causing damage, or causing the lamp body 5 to swing too much beyond the design range. The stop frame 22 can adopt a protrusion, baffle, or other structure and is disposed on the lifting path of the slider 31. Furthermore, the gear pair 33 can be configured to be restricted to the bottom side of the stop frame 22, thereby maintaining stable operation.

[0052] In one embodiment, the second transmission part 41 is confined and installed inside the main bracket 2. The main bracket 2 has several limiting protrusions 26 protruding inward from the outer wall, which form a stepped engagement with the end face of the second transmission part 41 to achieve axial limiting of the second transmission part 41, preventing it from moving along the first axis L1, so that the second transmission part 41 can be stably engaged and rotated in the main bracket 2, and transmit power to the gear pair 33 of the first transmission part 3 to achieve stable control of the oscillation of the lamp body 5.

[0053] Based on the structure of the above-mentioned lamps, such as Figure 8 As shown, in a third aspect, this application provides a method for controlling the rotation of a lamp. When the lamp body 5 in the lamp is not swinging, as... Figure 8 As shown in (a). When the lamp is not subjected to external operating force, the actuator 42 is always in the first position. When adjusting the swing angle, the bottom end of the actuator 42 can be held by hand and the actuator 42 can be rotated to make the drive assembly 4 rotate as a whole, driving the slider 31 in the first transmission part 3 to move, thereby swinging the lamp body 5 along the second axis L2 at a certain angle. After the lamp body 5 swings, it is as follows: Figure 8 (b) Schematic diagram; When the plane rotation angle needs to be adjusted, push the actuator 42 towards the lamp body 5 so that the actuator 42 and the bottom of the main bracket 2 are connected. At this time, it is in the second position state. Then rotate the actuator 42 so that the main bracket 2 rotates synchronously along the first axis L1 to the required angle. When the push is released, the actuator 42 leaves the main bracket 2 and returns to the first position state.

[0054] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A rotation drive structure for a lamp, characterized in that, include: The mounting part (1) includes an annular wall (11) extending in the height direction; The main support (2), at least partially extending into the inner side of the annular wall (11), is configured to be circumferentially rotatable relative to the mounting portion (1) along a first axis, including a bearing (21) adapted to be connected to a lamp body (5), the lamp body (5) being oscillating along a second axis in the bearing (21); The first transmission part (3) is connected to the main support (2). The first transmission part (3) includes a slider (31). The slider (31) is movably connected to the lamp body (5). The slider (31) is configured to be driven by the transmission to move back and forth in the lifting direction and drive the lamp body (5) to swing. The drive assembly (4) is operably connected to the main support (2) and is configured to be connected to the first transmission part (3) in a transmission connection.

2. The rotation drive structure as described in claim 1, characterized in that, The drive assembly (4) includes a second transmission part (41) and an actuation part (42). The actuation part (42) is limited and engaged with the second transmission part (41) in the circumferential direction to rotate synchronously. The second transmission part (41) is provided with a drive gear (411). The first transmission part (3) includes a screw (32) and a gear pair (33) that are fixedly connected. The slider (31) and the screw (32) are connected by a threaded transmission. The drive gear (411) and the gear pair (33) are meshed and connected in a transmission manner. The torque of the meshing rotation of the drive gear (411) and the gear pair (33) is less than the torque of the rotation of the main bracket (2) relative to the mounting part (1), so that the drive assembly (4) can drive the first transmission part (3) to move when it rotates relative to the main bracket (2).

3. The rotation drive structure as described in claim 2, characterized in that, The main support (2) is a hollow ring structure. The drive assembly (4) extends at least partially into the inside of the main support (2). The actuator (42) can reciprocate relative to the main support (2) along the first axis. The actuator (42) includes an operable end face (421). The operable end face (421) is opposite to the bottom end of the main support (2) and is suitable for cooperating with the main support (2). The actuator (42) has a first position state and a second position state. In the first position state, the operable end face (421) is separated from the main support (2), and the second transmission part (41) can rotate relative to the main support (2). In the second position state, the operable end face (421) is connected to the main support (2) and can drive the main support (2) to rotate along the first axis.

4. The rotation drive structure as described in claim 3, characterized in that, The bottom end of the main support (2) and the operable end face (421) are connected by toothed surface mating.

5. The rotation drive structure as described in claim 2, characterized in that, The actuating part (42) and the second transmission part (41) are detachably connected by a snap fastener (422). A slot (413) is provided on the actuating part (42) or the second transmission part (41) for the snap fastener (422) to engage and move. The opening of the slot (413) extends along the height direction.

6. The rotation drive structure as described in claim 2, characterized in that, The actuating part (42) and the second transmission part (41) are connected by an elastic member, and the actuating part (42) is configured to move away from the second transmission part (41) under the force of the elastic member.

7. The rotation drive structure as described in claim 2, characterized in that, The second transmission unit (41) includes a limiting cover (412), which extends radially outward from the drive gear (411) and rotates in the main support (2). The limiting cover (412) covers the actuating unit (42).

8. The rotation drive structure as described in claim 2, characterized in that, The actuator (42) and the second transmission part (41) are inserted and fitted along the first axis and form a circumferential anti-rotation.

9. The rotation drive structure as described in claim 1, characterized in that, The first axis and the second axis are perpendicular.

10. The rotation drive structure as described in claim 1, characterized in that, The inner side of the ring wall (11) of the mounting part (1) is provided with a ring groove (12). A number of protruding parts are installed in the outer wall of the main bracket (2) corresponding to the ring groove (12). The protruding parts are arranged circumferentially and movably connected in the ring groove (12) so that the mounting part (1) is circumferentially positioned relative to the mounting part (1).

11. A lamp, characterized in that, The lamp body (5) includes a lamp housing (51) and a lamp head (52) according to any one of claims 1 to 10. The lamp housing (51) is provided with a swing shaft (53) that is movably connected to a bearing seat (21) and a sliding shaft (54) that is movably connected to a slider (31). The lamp head (52) is provided with an optical component (55) facing the main support (2). The drive component (4) is embedded in the inner side of the main support (2). The drive component (4) is provided with a light-emitting channel for the light emitted by the optical component (55) to pass through. The ring wall (11) of the mounting part (1) surrounds the light-emitting channel.

12. The lamp as described in claim 11, characterized in that, The slider (31) includes two horizontal plates (311) spaced apart along the lifting direction. The sliding shaft (54) is located between the two horizontal plates (311). The two horizontal plates (311) form a clamping constraint on the shaft. The sliding shaft (54) can rotate and move in the space between the two horizontal plates (311) at the same time.

13. The lamp as described in claim 11, characterized in that, The lamp housing (51) has an active space suitable for accommodating the first transmission part (3), and the sliding shaft (54) is formed on the inner side wall of the active space.

14. A method for controlling the rotation of a lamp, characterized in that, The application of the luminaire as described in claim 11, wherein the driving component (4) is capable of reciprocating relative to the main support (2) along a first axis direction, includes the following method: When not subjected to external operating force, the drive assembly (4) leaves the main support (2), and the operation drive assembly (4) rotates relative to the main support (2), driving the first transmission part (3) to move, causing the lamp body (5) to swing along the second axis; An external force is applied to the drive assembly (4) to move the drive assembly (4) toward the main bracket (2) and form a linkage connection. The operation of the drive assembly (4) drives the main bracket (2) to rotate synchronously, and drives the lamp body (5) to rotate around the first axis.

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