Optical device zooming structure and lighting down lamp

Abstract

The utility model provides an optical device zooming structure and a lighting down lamp, the optical device zooming structure comprises a fixing assembly, a zooming assembly, an electric assembly and an optical device assembly, the fixing assembly comprises a first fixing ring and a second fixing ring which are fixedly connected with a down lamp shell; the zoom assembly comprises a rotating shell and a connecting shell which are rotationally connected to the first fixing ring, the connecting shell is arranged at one end of the rotating shell in a sleeving mode, a threaded limiting groove is formed in the outer wall of the rotating shell, a limiting piece arranged on the inner wall of the connecting shell in a protruding mode is embedded into the threaded limiting groove, the second fixing ring is arranged on the connecting shell in a sleeving mode, and the optical device assembly is connected to the connecting shell. The electric assembly is fixed to the first fixing ring, and an output end gear is meshed with the inner teeth of the rotating shell. The electric assembly is engaged with the inner teeth and is in limiting fit with the threaded limiting groove to move, so that the position of the optical device assembly is accurately adjusted; the rotating shell is sleeved with the connecting shell, and the connecting shell is sleeved with the second fixing ring, so that the optical device assembly on the connecting shell moves more stably.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of lamps, in particular to an optical zoom structure and a lighting downlight. BACKGROUND

[0002] The lighting downlight is a LED lamp for direct lighting. The zoom structure can adjust the distance between the lens and the light source, thereby changing the illumination range. By adjusting the zoom structure, the user can flexibly control the illumination range to meet the lighting needs in different scenes.

[0003] In the lighting downlight, the telescopic cylinder is sleeved with the lamp body, the lens fixed on the telescopic cylinder is telescoped with the light source, and the telescopic cylinder is manually fixed. The lens on the telescopic cylinder cannot be electrically controlled and adjusted in the downlight, which makes the adjustment of the lens cumbersome and the adjustment position inaccurate.

[0004] As disclosed in the comparative document CN202322574810.5, a light and color adjustable downlight includes a downlight body and a telescopic cylinder slidingly sleeved on the top end of the downlight body. The side wall of the telescopic cylinder is provided with a damping groove, and a convex lens is embedded and fixed in the telescopic cylinder. The top end of the telescopic cylinder is provided with a mounting groove, and the side wall of the downlight body is threadedly connected with a bolt abutting against the damping groove. However, the telescopic cylinder is fixed by the bolt, and the lens on the telescopic cylinder cannot be electrically controlled and adjusted in the downlight. UTILITY MODEL CONTENT

[0005] The purpose of the present disclosure is to overcome the deficiencies in the prior art, and to provide an optical zoom structure and a lighting downlight which can be electrically controlled to adjust the position accurately and move the optical component smoothly in the downlight.

[0006] The purpose of the present disclosure is achieved by the following technical solutions:

[0007] An optical zoom structure includes a fixed component, a zoom component, an electric component, and an optical component. The fixed component includes a first fixed ring and a second fixed ring, both of which are used to be fixedly connected with the inner wall of the downlight shell with a light source,

[0008] The zoom component includes a rotating shell and a connecting shell. The rotating shell is rotationally connected to the first fixed ring, and the connecting shell is sleeved on one end of the rotating shell away from the first fixed ring. The outer wall of the rotating shell is provided with a first screw thread and a second screw thread, and a screw thread limiting groove is formed between the first screw thread and the second screw thread. The inner wall of the connecting shell is provided with a limiting piece, which is adapted to be embedded in the screw thread limiting groove. The end of the limiting piece abuts against the outer wall of the rotating shell. The second fixed ring is sleeved on the connecting shell, and the optical component is connected to the connecting shell.

[0009] The electric component is fixed to the first fixing ring, and an inner wall of the rotating shell is convexly provided with inner teeth, and an output gear of the electric component is engaged with the inner teeth.

[0010] In one of the embodiments, a blocking ring plate is formed adjacent to one end of the rotating shell.

[0011] In one of the embodiments, the connecting shell is further convexly provided with a guide strip, the second fixing ring is provided with a guide groove, and the guide strip is adapted to be arranged in the guide groove.

[0012] In one of the embodiments, an outer wall of the connecting shell is further convexly provided with a blocking strip, one end of the blocking strip is connected to the blocking ring plate, and the other end of the blocking strip is abutted to the second fixing ring.

[0013] In one of the embodiments, the electric component comprises a driving motor, a rotating shaft and a driving gear, the driving motor is fixed to the first fixing ring, the rotating shaft is rotatably connected to an output end of the driving motor, and the driving gear is fixed to the rotating shaft and engaged with the inner teeth.

[0014] In one of the embodiments, an inner side of the inner teeth is convexly provided with a limiting block, the limiting block is provided with a first limiting sliding hole, and the rotating shaft is slidingly arranged in the first limiting sliding hole.

[0015] In one of the embodiments, a circumferential surface of an end face of the first fixing ring is provided with a second limiting sliding hole, and the zoom component further comprises a sliding member, the sliding member is connected to the rotating shell, and the sliding member is slidingly arranged in the second limiting sliding hole.

[0016] In one of the embodiments, the number of the threaded limiting grooves and the limiting members is multiple, the multiple threaded limiting grooves are arranged in the circumferential surface of the outer wall of the rotating shell at intervals, and each limiting member is embedded in a corresponding threaded limiting groove.

[0017] In one of the embodiments, the limiting member is a circular truncated cone structure, and the first threaded strip and the second threaded strip are respectively formed with inclined surfaces in the threaded limiting groove.

[0018] A lighting down lamp comprises a down lamp shell, a light source and an optical zoom structure according to any one of the embodiments, the light source is fixed in the down lamp shell, and the first fixing ring and the second fixing ring are respectively connected with an inner wall of the down lamp shell.

[0019] Compared with the prior art, the present disclosure has at least the following advantages:

[0020] The optical zoom structure is fixedly connected with the inner wall of the lamp housing provided with the light source through the first fixed ring and the second fixed ring, the electric component is engaged with the inner teeth of the rotating shell, the electric component is used for controlling the accurate rotation of the rotating shell, the limiting piece of the connecting shell is used for moving in the position of the threaded limiting groove, so that the connecting shell and the optical component are accurately adjusted in the lighting lamp, the connecting shell is sleeved on the rotating shell, the end of the limiting piece is abutted with the outer wall of the rotating shell, the connecting shell and the rotating shell are tightly matched, the second fixed ring is sleeved on the connecting shell, the sliding direction of the connecting shell is limited by the second fixed ring, and the optical component on the connecting shell moves more stably. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some of the embodiments of the present disclosure, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0022] Figure 1 It is a structural schematic diagram of the optical zoom structure of an embodiment;

[0023] Figure 2 It is a structural schematic diagram of the optical zoom structure of an embodiment; Figure 1 It is a partial structural schematic diagram of the optical zoom structure shown in the figure;

[0024] Figure 3 It is an exploded view of the optical zoom structure shown in the figure. Figure 1 It is an exploded view of the optical zoom structure shown in the figure. DETAILED DESCRIPTION

[0025] In order to facilitate the understanding of the present disclosure, the following will refer to the related drawings to make a more comprehensive description of the present disclosure. The preferred embodiments of the present disclosure are shown in the drawings. However, the present disclosure can be realized in many different forms, and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present disclosure more thorough and comprehensive.

[0026] It should be noted that when an element is referred to as "fixed to" another element, it can be directly on the other element or there can be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there can be a middle element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not the only implementation.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] To better understand the technical solutions and beneficial effects of this disclosure, the following detailed description is provided in conjunction with specific embodiments:

[0029] like Figures 1 to 3 As shown, it is an optical zoom structure 10 according to an embodiment of the present disclosure, including a fixing component 100, a zoom component 200, a motor component 300 and an optical component 400. The fixing component 100 includes a first fixing ring 110 and a second fixing ring 120, both of which are used to fix them to the downlight housing.

[0030] Further, the zoom assembly 200 includes a rotating housing 210 and a connecting housing 220. The rotating housing 210 is rotatably connected to the first fixing ring 110, and the connecting housing 220 is sleeved on the end of the rotating housing 210 opposite to the first fixing ring 110. The outer wall of the rotating housing 210 is provided with a first threaded bar 211 and a second threaded bar 212, and a threaded limiting groove 2101 is formed between the first threaded bar 211 and the second threaded bar 212. The inner wall of the connecting housing 220 is provided with... A limiting member 221 is provided, which is adapted to be embedded in the threaded limiting groove 2101. The end of the limiting member 221 abuts against the outer wall of the rotating housing 210. The second fixing ring 120 is sleeved on the connecting housing 220. The optical component 400 is connected to the connecting housing 220. The electric component 300 is fixed to the first fixing ring 110. The inner wall of the rotating housing 210 is provided with an internal tooth 213. The output gear of the electric component 300 meshes with the internal tooth 213.

[0031] In this embodiment, when the electric component 300 is started, it drives the internal teeth 213 of the rotating housing 210 to rotate, causing the rotating housing 210 to rotate. The first threaded bar 211 and the second threaded bar 212 of the rotating housing 210 rotate and push the limiting member 221, causing the limiting member 221 to move spirally along the threaded limiting groove 2101. This causes the connecting housing 220 to be sleeved on the rotating housing 210 and to perform telescopic movement, thereby changing the distance between the optical component 400 and the first fixing ring 110 connecting the rotating housing 210. The first fixing ring 110 is used to fix the downlight housing, thereby changing the focal length between the optical component 400 and the light source.

[0032] The optical zoom structure 10 described above is fixedly connected with the inner wall of the down lamp housing provided with a light source through the first fixed ring 110 and the second fixed ring 120, and is engaged with the inner teeth 213 of the rotating housing 210 through the electric assembly 300, so that the electric assembly 300 electrically controls the precise rotation of the rotating housing 210, and the limiting part 221 of the connecting housing 220 cooperates with the threaded limiting groove 2101 to move, so that the connecting housing 220 and the optical component 400 are accurately adjusted in the down lamp, and the connecting housing 220 is sleeved on the rotating housing 210, the end of the limiting part 221 abuts against the outer wall of the rotating housing 210, so that the connecting housing 220 and the rotating housing 210 are tightly matched, and the second fixed ring 120 is sleeved on the connecting housing 220, so that the second fixed ring 120 limits the sliding direction of the connecting housing 220, thereby making the optical component 400 on the connecting housing 220 move more stably.

[0033] As shown in Figure 2 In one embodiment, the connecting housing 220 is formed with a blocking ring plate 222 adjacent to one end of the rotating housing 210. In this embodiment, the blocking ring plate 222 is used to contact the end of the rotating housing 210 away from the first fixed ring 110, and the blocking ring plate 222 limits the sliding of the rotating housing 210 in the axial direction, reduces the direct impact between the rotating housing 210 and the connecting housing 220, thereby improving the stability and durability between the rotating housing 210 and the connecting housing 220.

[0034] As shown in Figure 2 In one embodiment, the connecting housing 220 is further provided with a guide strip 223, and the second fixed ring 120 is provided with a guide groove 1201, and the guide strip 223 is adapted to be inserted into the guide groove 1201. In this embodiment, the cooperation of the guide strip 223 and the guide groove 1201 provides a connecting point between the connecting housing 220 and the second fixed ring 120, so that the connecting housing 220 accurately slides along the second fixed ring 120 on the rotating housing 210, and the stability of the sliding of the connecting housing 220 is increased.

[0035] As shown in Figure 2As shown in the drawings, in one embodiment, the outer wall of the connecting shell 220 is further provided with a blocking strip 224, one end of the blocking strip 224 is connected to the blocking ring plate 222, and the other end of the blocking strip 224 abuts against the second fixed ring 120. In this embodiment, the interaction of the blocking strip 224 with the blocking ring plate 222 and the second fixed ring 120 provides a stable support frame for the connecting shell 220, enhancing the structural strength of the entire connecting shell 220; through the abutment of the blocking strip 224 and the second fixed ring 120, the movement range of the connecting shell 220 can be accurately controlled to prevent it from exceeding the predetermined movement trajectory.

[0036] As shown in the drawings, Figure 1 and Figure 3 As shown in the drawings, in one embodiment, the electric component 300 includes a driving motor 310, a rotating shaft 320, and a driving gear 330, the driving motor 310 is fixed to the first fixed ring 110, the rotating shaft 320 is rotationally connected to the output end of the driving motor 310, the driving gear 330 is fixed to the rotating shaft 320, and the driving gear 330 is engaged with the inner teeth 213. In this embodiment, by fixing the driving motor 310 to the first fixed ring 110 and engaging the driving gear 330 with the inner teeth 213, the driving motor 310 is combined compactly and efficiently with the inner teeth 213 through the rotating shaft 320 and the driving gear 330, saving installation space; through the precise matching of the driving gear 330 with the inner teeth 213 of the rotating shell 210, the smooth rotation of the rotating shell 210 is ensured, and the accurate adjustment of the moving position of the connecting shell 220 is ensured.

[0037] As shown in the drawings, Figure 1 and Figure 3 As shown in the drawings, in one embodiment, the inner side of the inner teeth 213 is further provided with a limiting block 2131, the limiting block 2131 is provided with a first limiting sliding hole 2102, and the rotating shaft 320 is slidingly arranged in the first limiting sliding hole 2102. In this embodiment, the rotating shaft 320 is slidingly arranged in the first limiting sliding hole, and the rotating shaft 320 is limited and supported by the output end of the driving motor 310 and the first limiting sliding hole 2102, so that the position of the driving gear 330 is more stable, thereby making the engagement precision of the driving gear 330 and the inner teeth 213 higher and the rotation more stable; the first limiting sliding hole 2102 also limits the activity range of the rotating shaft 320, so that the activity range of the optical component group 400 connected by the connecting shell 220 on the rotating shell 210 is fixed.

[0038] As shown in the drawings, Figure 1As shown, in one of the embodiments, the end face of the first fixed ring 110 is provided with a second limiting sliding hole 1101, and the zoom assembly 200 further comprises a sliding piece 230 connected to the rotating shell 210, and the sliding piece 230 is slidingly arranged in the second limiting sliding hole 1101. In this embodiment, the movement range of the sliding piece 230 in the second limiting sliding hole 1101 is limited, thereby further controlling the rotation range of the rotating shell 210, so as to ensure that the optical component assembly 400 connected to the connecting shell 220 on the rotating shell 210 is kept in the correct focal length range during adjustment; further, the number of the sliding piece 230 and the second limiting sliding hole 1101 is multiple, and the multiple sliding pieces 230 are arranged at intervals on the end face of the first fixed ring 110, and the sliding pieces 230 are arranged at intervals in the circumferential direction of the rotating shell 210, and the rotating shell 210 is more stable through the cooperation of the multiple sliding pieces 230 and the corresponding second limiting sliding holes 1101, and the connection strength between the rotating shell 210 and the first fixed ring 110 is increased.

[0039] As shown, Figure 3 In one of the embodiments, the number of the threaded limiting grooves 2101 and the limiting pieces 221 is multiple, the multiple threaded limiting grooves 2101 are arranged at intervals in the circumferential direction of the outer wall of the rotating shell 210, and each limiting piece 221 is embedded in the corresponding threaded limiting groove 2101. In this embodiment, the stability of the rotating shell 210 and the connecting shell 220 is improved through the cooperation of the multiple threaded limiting grooves 2101 and the limiting pieces 221, each limiting piece 221 is embedded in the corresponding threaded limiting groove 2101, thereby reducing the deviation or shaking between the rotating shell 210 and the connecting shell 220; the multiple threaded limiting grooves 2101 and the limiting pieces 221 are arranged at intervals in the circumferential direction of the outer wall of the rotating shell 210, so that the stress of the rotating shell 210 and the limiting pieces 221 is uniform, thereby improving the durability between the circumferential direction of the outer wall and the connecting shell 220.

[0040] As shown, Figure 3 In one of the embodiments, the limiting piece 221 is a circular truncated cone structure, and the first threaded strip 211 and the second threaded strip 212 respectively form inclined surfaces in the threaded limiting groove 2101. In this embodiment, the limiting piece 221 is embedded in the threaded limiting groove 2101, the circular truncated cone structure limiting piece 221 cooperates with the inclined surface of the threaded limiting groove 2101 to abut, thereby preventing the limiting piece 221 and the threaded limiting groove 2101 from loosening, and the tightness of the cooperation between the rotating shell 210 and the connecting shell 220 is increased.

[0041] The application discloses a lighting down lamp, which comprises a down lamp shell, a light source and an optical zoom structure 10 as described in any of the above embodiments, the light source is fixed in the down lamp shell, and the first fixing ring 110 and the second fixing ring 120 are connected with the inner wall of the down lamp shell respectively. In the embodiment, the distance between the light source and the optical component 400 is accurately and smoothly adjusted through the optical zoom structure 10, so that the irradiation effect of the light source can be accurately adjusted.

[0042] Compared with the prior art, the application has at least the following advantages:

[0043] The optical zoom structure 10 is fixedly connected with the inner wall of the down lamp shell provided with the light source through the first fixing ring 110 and the second fixing ring 120, is engaged with the inner teeth 213 of the rotating shell 210 through the electric component 300, so that the electric component 300 accurately rotates the rotating shell 210 under the electric control, the limiting piece 221 of the connecting shell 220 cooperates with the threaded limiting groove 2101 to move, so that the connecting shell 220 and the optical component 400 are accurately adjusted in the lighting down lamp; the connecting shell 220 is sleeved on the rotating shell 210, the end of the limiting piece 221 abuts against the outer wall of the rotating shell 210, so that the connecting shell 220 and the rotating shell 210 are tightly matched, the second fixing ring 120 is sleeved on the connecting shell 220, so that the second fixing ring 120 limits the sliding direction of the connecting shell 220, and the optical component 400 on the connecting shell 220 moves more smoothly.

[0044] The above-mentioned embodiments only express several implementation manners of the application, the description is relatively specific and detailed, but it cannot be understood as the limitation of the patent scope. It should be pointed out that, for ordinary skilled in the art, several modifications and improvements can be made without departing from the concept of the application, and these all belong to the protection scope of the application. Therefore, the patent protection scope of the application should be subject to the appended claims.

Claims

1. An optical zoom structure, comprising a fixing component, a zoom component, a motorizing component, and an optical component, wherein the fixing component includes a first fixing ring and a second fixing ring, both the first fixing ring and the second fixing ring being used for fixed connection to the inner wall of a downlight housing containing a light source, characterized in that, The zoom assembly includes a rotating housing and a connecting housing. The rotating housing is rotatably connected to the first fixing ring. The connecting housing is sleeved on the end of the rotating housing opposite to the first fixing ring. The outer wall of the rotating housing is provided with a first threaded strip and a second threaded strip. A threaded limiting groove is formed between the first threaded strip and the second threaded strip. The inner wall of the connecting housing is provided with a limiting member. The limiting member is adapted to be embedded in the threaded limiting groove. The end of the limiting member abuts against the outer wall of the rotating housing. The second fixing ring is sleeved on the connecting housing. The optical assembly is connected to the connecting housing. The electric component is fixed to the first fixed ring, and the inner wall of the rotating housing is provided with internal teeth. The output gear of the electric component meshes with the internal teeth.

2. The optical zoom structure according to claim 1, characterized in that, A blocking ring plate is formed at one end of the connecting housing adjacent to the rotating housing.

3. The optical zoom structure according to claim 2, characterized in that, The connecting housing is also provided with a guide strip, and the second fixing ring is provided with a guide groove, and the guide strip is adapted to pass through the guide groove.

4. The optical zoom structure according to claim 2, characterized in that, The outer wall of the connecting housing is also provided with a blocking strip, one end of which is connected to the blocking ring plate, and the other end of which abuts against the second fixing ring.

5. The optical zoom structure according to claim 1, characterized in that, The electric component includes a drive motor, a rotating shaft, and a drive gear. The drive motor is fixed to the first fixed ring, the rotating shaft is rotatably connected to the output end of the drive motor, and the drive gear is fixed to the rotating shaft and meshes with the internal gear.

6. The optical zoom structure according to claim 5, characterized in that, The inner side of the internal tooth is provided with a limiting block, and the limiting block has a first limiting sliding hole, and the rotating shaft is slidably disposed in the first limiting sliding hole.

7. The optical zoom structure according to claim 1, characterized in that, The first fixed ring end face is provided with a second limiting sliding hole in the circumference. The zoom assembly also includes a sliding member, which is connected to the rotating housing and is slidably disposed in the second limiting sliding hole.

8. The optical zoom structure according to claim 1, characterized in that, The number of threaded limiting grooves and limiting members is multiple, and the multiple threaded limiting grooves are spaced apart on the circumferential direction of the outer wall of the rotating housing, and each limiting member is embedded in the corresponding threaded limiting groove.

9. The optical zoom structure according to claim 1, characterized in that, The limiting component has a frustum-shaped structure, and the first threaded strip and the second threaded strip each have an inclined surface formed in the thread limiting groove.

10. A recessed lighting lamp, characterized in that, The lamp includes a downlight housing, a light source, and an optical zoom structure as described in any one of claims 1-9, wherein the light source is fixed inside the downlight housing, and the first fixing ring and the second fixing ring are respectively connected to the inner wall of the downlight housing.

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