Zoom lens module applied to lamp

Abstract

The utility model relates to the technical field of lens modules, and discloses a zoom lens module applied to a lamp, which comprises a lamp shell assembly, a light source piece, a lens body and a swing structure, the lamp shell assembly comprises a swing shell and an outer barrel shell, the lens body is arranged on the swing shell, and the swing structure is used for driving the swing shell to swing relative to the light source piece; the outer barrel shell is provided with at least two distance adjusting grooves, the distance adjusting grooves are correspondingly arranged at intervals in the axial direction, the swing shell is provided with shell columns, the distance adjusting grooves are movably embedded in the shell columns, and the shell columns are switched to different distance adjusting grooves under driving force. The projection angle of the lamp is adjusted through the swing structure, different lighting requirements are met, the swing shell moves relative to the outer barrel shell through the distance adjusting groove and the distance connecting groove, the distance between the lens body and the light source piece is adjusted, and the focal length of the light source piece is adjusted. Therefore, the illumination angle and the focal length of the lamp can be flexibly adjusted according to the requirement of the lamp illumination scene, and the focusing effect of the lamp is improved.

Description

Technical Field

[0001] This utility model patent relates to the technical field of lens modules, and more specifically, to zoom lens modules used in lighting fixtures. Background Technology

[0002] Different lighting locations have different requirements for the light distribution of luminaires. In particular, in commercial lighting and exhibition hall lighting, where there are high requirements for lighting effects such as light spot, light color, and illuminance, the requirements for the projection range and projection angle of luminaires are even better.

[0003] Therefore, using a lamp with focusing capability is more in line with lighting needs. For example, the prior patent with authorization announcement number CN208457873U discloses a lamp with adjustable focus, including a lamp body and: an adjusting sleeve disposed on the lamp body, the adjusting sleeve having an active unit; a retaining ring disposed between the adjusting sleeve and the lamp body to prevent the adjusting sleeve from moving in the axial direction; an end cap disposed at the outer end of the adjusting sleeve; and a movable seat located inside the adjusting sleeve and within the space defined by the retaining ring and the end cap for mounting a lens unit, the movable seat having a driven unit at a corresponding position to the active unit; the active unit and the driven unit are connected by a spiral structure so that when the adjusting sleeve is rotated, a spiral relative displacement occurs between the active unit and the driven unit, and the movable seat moves forward or backward axially relative to the adjusting sleeve.

[0004] In existing technologies, lamps only have fine-tuning capabilities, resulting in poor focusing performance. Furthermore, the lack of projection angle adjustment fails to meet diverse lighting needs and also affects the focusing performance of the lamps. Utility Model Content

[0005] The purpose of this invention is to provide a zoom lens module for use in lighting fixtures, aiming to solve the problem of poor focusing effect in existing lighting fixtures.

[0006] This invention is implemented as follows: a zoom lens module for lighting fixtures includes a lamp housing assembly, a light source element, a lens body, and a swing structure. The lamp housing assembly includes a swing shell and an outer cylindrical shell. The lens body is mounted on the swing shell, and the light source element is arranged correspondingly to the lens body. The swing structure is assembled with the swing shell, and the swing structure is used to drive the swing shell to swing relative to the light source element. The swing shell is located inside the outer cylindrical shell, and the outer cylindrical shell has at least two adjustment slots arranged at intervals along the axial direction. The swing shell has at least one shell post, which is movably embedded in the adjustment slot. The shell post is driven to switch to different adjustment slots.

[0007] Furthermore, the adjusting grooves are arranged in a ring shape, the outer shell has multiple connecting grooves, adjacent adjusting grooves are connected through the connecting grooves, the two ends of the connecting grooves are respectively connected to the adjacent adjusting grooves, and the connecting grooves are inclined and extended. The shell column moves relative to the adjusting grooves under the rotational force, and the shell column switches to different adjusting grooves through the connecting grooves under the push-pull force.

[0008] Alternatively, the shell pillars are elastically arranged, and the shell pillars are switched to different adjustment slots by push and pull forces.

[0009] Furthermore, the outer shell has three connecting grooves, which are arranged in a triangular pattern. The swing shell has three shell pillars, which are arranged in a circumferentially spaced pattern. When adjusting the spacing, the three shell pillars simultaneously enter or simultaneously disengage from the three connecting grooves.

[0010] Furthermore, the swing housing includes a main swing housing and a flat shell shaft. The lens body is mounted on the main swing housing. The inner end of the flat shell shaft is arranged in a mating arrangement with the main swing housing. The outer end of the flat shell shaft extends axially in a direction away from the main swing housing. The swing structure includes a swing gear. The flat shell shaft and the swing gear are assembled together. The swing gear is rotated under driving force and is used to drive the flat shell shaft to rotate.

[0011] Furthermore, the swing shell includes an outer swing shell and a circular shell shaft. The circular shell shaft is arranged in a mating arrangement with the main swing shell, and the circular shell shaft and the flat shell shaft are arranged at opposite ends along the main swing shell. The circular shell shaft and the flat shell shaft are respectively assembled with the outer swing shell, and the main swing shell is located inside the outer swing shell.

[0012] Furthermore, the swing shell includes a top shell plate, which is stacked and assembled with the outer swing shell. The top shell plate is provided with a fixed tooth, which is meshed with the swing gear.

[0013] Furthermore, the flat shell shaft has two axial sectional surfaces and two axial arc surfaces. The two axial sectional surfaces are arranged correspondingly, and the two axial arc surfaces are arranged correspondingly. The two axial arc surfaces are arranged in an arched arc shape along opposite directions. The two ends of the axial sectional surface are respectively arranged to meet the two axial arc surfaces, and the axial sectional surface extends vertically along the axial direction. The oscillating gear has a gear hole, and the axial sectional surface passes through the gear hole to penetrate the oscillating gear. Both the axial sectional surface and the axial arc surface are arranged to lie flat and abut against the gear hole.

[0014] Furthermore, the lens body has an entrance cavity and an exit portion. The entrance cavity is arranged correspondingly to the light source. The entrance cavity is arranged in a flared shape along the direction towards the light source, and the entrance cavity flares out to the edge of the lens. The exit portion is used to receive light rays passing through the entrance cavity and project light rays outward.

[0015] Furthermore, the light-incident cavity includes two light-incident side surfaces and a light-incident arc surface. The light-incident arc surface is arranged in an arc shape along the direction towards the light source. The light-emitting part includes a total reflection surface and a light-emitting surface. The light-incident side surfaces are used to refract light to the total reflection surface, the light-incident arc surface is used to refract light to the light-emitting surface, and the total reflection surface is used to reflect light to the light-emitting surface. The light is projected by the light-emitting surface to form a light spot. The light-incident arc surface is located between the two light-incident side surfaces, and the two light-incident side surfaces are arranged in a gradually inclined manner along the direction towards the light source.

[0016] Furthermore, the light-incident side is arranged in a smooth manner, or the light-incident side is provided with microstructures, the microstructures are arranged in a frosted manner, or the microstructures are arranged in a scaly manner.

[0017] Compared with existing technologies, the zoom lens module for lighting fixtures provided by this utility model drives the swing shell through a swing structure, causing the lens body to swing left and right relative to the light source, thereby adjusting the projection angle of the lighting fixture to meet different lighting needs. At the same time, by switching different adjustment slots, the swing shell can be moved relative to the outer shell, thereby causing the lens body to move relative to the light source, thus adjusting the distance between the lens body and the light source, and adjusting the focal length of the light source. In this way, the illumination angle and focal length of the lighting fixture can be flexibly adjusted according to the needs of the lighting scene, and the focusing effect of the lighting fixture can be improved. Attached Figure Description

[0018] Figure 1 This is a cross-sectional schematic diagram of the zoom lens module for lighting fixtures provided by this utility model;

[0019] Figure 2 This is an exploded view of the zoom lens module for lighting fixtures provided by this utility model;

[0020] Figure 3 This is a three-dimensional schematic diagram of the outer shell of the zoom lens module for lighting fixtures provided by this utility model;

[0021] Figure 4 This is a partially enlarged schematic diagram of the zoom lens module for lighting fixtures provided by this utility model;

[0022] Figure 5 This is an exploded view of the lamp housing assembly of the zoom lens module for lighting fixtures provided by this utility model;

[0023] Figure 6 This is a three-dimensional schematic diagram of the lamp housing assembly of the zoom lens module for lighting fixtures provided by this utility model;

[0024] Figure 7 This is a three-dimensional schematic diagram of the lens body of the zoom lens module for lighting fixtures provided by this utility model. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0026] The implementation of this utility model will be described in detail below with reference to specific embodiments.

[0027] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0028] Reference Figure 1-7 The image shown is a preferred embodiment of the present invention.

[0029] A zoom lens module for use in lighting fixtures includes a lamp housing assembly 1, a light source 2, a lens body 3, and a swing structure 4. The lamp housing assembly 1 includes a swing shell 11 and an outer cylindrical shell 12. The lens body 3 is mounted on the swing shell 11, and the light source 2 is arranged correspondingly to the lens body 3. The swing structure 4 is assembled with the swing shell 11, and the swing structure 4 is used to drive the swing shell 11 to swing relative to the light source 2. The swing shell 11 is located inside the outer cylindrical shell 12. The outer cylindrical shell 12 has at least two adjustment slots 121. Along the axial direction, the adjustment slots 121 are arranged at intervals. The swing shell 11 has at least one shell post 13. The shell post 13 is movably embedded in the adjustment slot 121. The shell post 13 is switched to different adjustment slots 121 by a driving force.

[0030] The aforementioned zoom lens module for lighting fixtures uses a swing structure 4 to drive the swing housing 11, causing the lens body 3 to swing left and right relative to the light source 2, thereby adjusting the projection angle of the lighting fixture to meet different lighting needs. Simultaneously, by switching between different adjustment slots 121, the swing housing 11 can be moved relative to the outer cylinder shell 12, which in turn moves the lens body 3 relative to the light source 2, adjusting the distance between the lens body 3 and the light source 2, thus adjusting the focal length of the light source 2. In this way, the illumination angle and focal length of the lighting fixture can be flexibly adjusted according to the needs of the lighting scene, and the focusing effect of the lighting fixture can be improved.

[0031] The zoom lens module used in lighting fixtures includes a power supply bracket, which is used to install the power supply component. The power supply bracket is located inside the outer shell 12, and the power supply bracket and the outer shell 12 are assembled to realize the cooperation between the light source component 2 and the lens body 3.

[0032] The outer shell 12 has three connecting slots 122, which are arranged in a triangular pattern. The swing shell 11 has three shell pillars 13, which are arranged in a circumferentially spaced pattern. When adjusting the spacing, the three shell pillars 13 simultaneously enter or simultaneously disengage from the three connecting slots 122. In this way, when adjusting the focal length, the three shell pillars 13 move synchronously, making the relative rotation between the outer shell 12 and the swing shell 11 more stable and improving the stability of the focal length adjustment.

[0033] Alternatively, the outer shell 12 has two connecting slots 122 arranged symmetrically, and the swing shell 11 has two shell pillars 13 arranged symmetrically. When adjusting the spacing, the two shell pillars 13 enter or leave the two connecting slots 122 simultaneously. In this way, when adjusting the focal length, the two shell pillars 13 move synchronously, making the relative rotation between the outer shell 12 and the swing shell 11 more stable and improving the stability of the focal length adjustment.

[0034] The outer shell 12 has an end adjustment platform 123, which is arranged in a ring. The end adjustment platform 123 and the adjustment groove 121 are arranged at intervals along the axial direction. The end adjustment platform 123 and the adjustment groove 121 are connected by a connecting groove 122. The end adjustment platform 123 is arranged close to the light source 2 and is used to support the shell column 13. In this way, multi-level focal length adjustment can be achieved through the cooperation of the end adjustment platform 123 and the adjustment groove 121.

[0035] There can be two or three adjustment slots 121. Each adjustment slot 121 is arranged at intervals along the axial direction, and adjacent adjustment slots 121 are connected by a connecting slot 122 to achieve multi-level focal length adjustment.

[0036] The swing housing 11 includes a main swing housing 111 and a flat shell shaft 112. The lens body 3 is mounted on the main swing housing 111. The inner end of the flat shell shaft 112 is arranged in a mating arrangement with the main swing housing 111, and the outer end of the flat shell shaft 112 extends axially in a direction away from the main swing housing 111. The swing structure 4 includes a swing gear 41. The flat shell shaft 112 and the swing gear 41 are assembled. The swing gear 41 is rotated under driving force and is used to drive the flat shell shaft 112 to rotate.

[0037] In this way, the lens body 3 is oscillated by the cooperation of the flat shell shaft 112 and the swing gear 41, thereby adjusting the projection angle of the light source 2. Specifically, the swing gear 41 is rotated under the driving force, and the swing gear 41 drives the flat shell shaft 112 to rotate. When the flat shell shaft 112 rotates, it simultaneously causes the main swing shell 111 to swing. The swing of the main swing shell 111 drives the lens body 3 to swing, thereby adjusting the projection angle.

[0038] Furthermore, the swing gear 41 effectively enhances the swing damping, making it convenient to precisely adjust the swing angle of the lamp; at the same time, based on the number of teeth of the swing gear 41, it is easy to define the degree of the lamp's swing, thereby facilitating precise control of the lamp's swing angle.

[0039] The flat shell shaft 112 has a hexagonal cross-section. The flat shell shaft 112 prevents the flat shell shaft 112 from rotating in the same direction as the swing gear 41, thus ensuring the swing adjustment of the lamp.

[0040] The cross-section of the flat shell shaft 112 is arranged in a quadrangular shape. The flat shell shaft 112 prevents the flat shell shaft 112 from rotating in the same direction as the swing gear 41, thus ensuring the swing adjustment of the lamp.

[0041] The cross-section of the flat shell shaft 112 is arranged in a triangular shape. The flat shell shaft 112 prevents the flat shell shaft 112 from rotating in the same direction as the swing gear 41, thus ensuring the swing adjustment of the lamp.

[0042] The flat shell shaft 112 has a circular cross-section, and multiple positioning strips are protruding on the outer surface of the flat shell shaft 112. The positioning strips are fixedly arranged relative to the swing gear 41. In this way, the flat shell shaft 112 and the swing gear 41 are prevented from rotating together, thus ensuring the swing adjustment of the lamp.

[0043] The swing housing 11 includes an outer swing housing 113 and a circular shell shaft 114. The circular shell shaft 114 is arranged in a mating arrangement with the main swing housing 111, and the circular shell shaft 114 and the flat shell shaft 112 are arranged at opposite ends along the main swing housing 111. The circular shell shaft 114 and the flat shell shaft 112 are respectively assembled with the outer swing housing 113, and the main swing housing 111 is located inside the outer swing housing 113. The assembly of the flat shell shaft 112 is realized, thereby realizing the assembly of the main swing housing 111, which facilitates the cooperation between the lens body 3 and the power supply component.

[0044] The swing shell 11 includes a top shell plate 115, which is stacked and assembled with the outer swing shell 113. The top shell plate 115 is provided with a fixed tooth 5, which is meshed with the swing gear 41. In this way, the top shell plate 115 realizes the assembly of the fixed tooth 5. Under the action of the fixed tooth 5, the rotation of the swing gear 41 is positioned, thereby improving the driving accuracy of the swing gear 41.

[0045] The flat shell shaft 112 has two axial tangent surfaces and two axial arc surfaces. The two axial tangent surfaces are arranged in a corresponding manner, and the two axial arc surfaces are arranged in an arched arc shape along opposite directions. The two ends of the axial tangent surface are respectively arranged to meet the two axial arc surfaces, and the axial tangent surface extends vertically along the axial direction. The oscillating gear 41 has a gear hole, and the axial tangent surface passes through the gear hole to penetrate the oscillating gear 41. Both the axial tangent surface and the axial arc surface are arranged to lie flat and abut against the gear hole.

[0046] In this way, the rotation of the oscillating gear 41 can effectively drive the flat shell shaft 112 to rotate, thereby adjusting the projection angle and avoiding the idling of the oscillating gear 41, thus ensuring the adjustment of the projection angle of the lamp.

[0047] The lens body 3 has an entrance cavity 31 and an exit section. The entrance cavity 31 is arranged correspondingly to the light source 2. The entrance cavity 31 is arranged in a flared shape along the direction towards the light source, and the entrance cavity 31 is flared to the edge of the lens. The exit section is used to receive the light passing through the entrance cavity 31 and project the light outward.

[0048] Since the light inlet cavity 31 is arranged in an flared shape along the direction towards the light source, the opening of the light inlet cavity 31 is increased, and the light inlet cavity 31 is arranged with a large opening. Even when the light source is far away, most of the light can be hit into the light inlet hole, thereby improving the light efficiency.

[0049] The light-incident cavity 31 includes two light-incident side surfaces 311 and a light-incident arc surface 312. The light-incident arc surface 312 is arranged in an arc shape along the direction towards the light source. The light-emitting part includes a total reflection surface 32 and a light-emitting surface 33. The light-incident side surfaces 311 are used to refract light to the total reflection surface 32, the light-incident arc surface 312 is used to refract light to the light-emitting surface 33, and the total reflection surface 32 is used to reflect light to the light-emitting surface 33. The light is projected through the light-emitting surface 33 to form a light spot. The light-incident arc surface 312 is located between the two light-incident side surfaces 311, and the two light-incident side surfaces 311 are arranged in a gradually inclined manner along the direction towards the light source.

[0050] With the combined action of the light-incident side 311, the light-incident curved surface 312, the total reflection surface 32, and the light-exiting surface 33, most of the light rays are emitted in a cross pattern, making the light softer and the light spot more concentrated. There is less light interception, which improves the anti-glare ability. At the same time, the change in the light pattern of the light spot is significantly smaller, which improves the uniformity of the light spot, achieves the effect of no yellow spots and reduces stray light, and brings good light transmission effect, so that the emitted light spot has a clear and good color effect.

[0051] The light-receiving side 311 is arranged in a smooth shape to improve light transmission and thus enhance light efficiency.

[0052] Alternatively, the light-incident side 311 may have a microstructure arranged in a frosted manner to improve the light mixing effect of the lens.

[0053] Alternatively, the microstructures can be arranged in a scale-like pattern to improve the light mixing effect of the lens.

[0054] Focusing Example 1:

[0055] The adjustment slots 121 are arranged in a ring shape, and the outer shell 12 has multiple connecting slots 122. Adjacent adjustment slots 121 are connected through the connecting slots 122. The two ends of the connecting slots 122 are respectively connected to the adjacent adjustment slots 121 and are connected. The connecting slots 122 are arranged in an inclined extension. The shell column 13 moves relative to the adjustment slots 121 under the rotational force. The shell column 13 is switched to different adjustment slots through the connecting slots 122 by the push and pull force.

[0056] In this way, when the focal length needs to be adjusted, the shell column 13 moves along the adjustment groove 121 by the relative rotation between the outer shell 12 and the swing shell 11. When the shell column 13 moves to the connecting groove 122, a pushing force is applied to the outer shell 12 or the swing shell 11 to make the shell column 13 enter the connecting groove 122. Then, the other adjustment groove 121 is moved through the connecting groove 122, thereby realizing the relative movement between the outer shell 12 and the swing shell 11. In turn, the distance between the lens body 3 and the light source 2 is adjusted, thereby adjusting the focal length of the light source 2.

[0057] The shell columns can be arranged elastically or rigidly.

[0058] Focusing Example 2:

[0059] The shell column is elastically arranged, and the shell column is switched to different adjustment slots by push and pull forces. In this way, when the focal length needs to be adjusted, push and pull forces are applied to the outer shell 12 or the swing shell 11. The shell column is deformed by the force and switched to other adjustment slots 121 under the action of the push force, thereby realizing the relative movement between the outer shell 12 and the swing shell 11. In turn, the distance between the lens body 3 and the light source 2 is adjusted, thereby realizing the adjustment of the focal length of the light source 2.

[0060] Example 1 without a motor:

[0061] A zoom lens module for lighting fixtures includes a lamp housing assembly 1, a light source element 2, a lens body 3, and a swing structure 4. The lamp housing assembly 1 includes a swing shell 11 and an outer cylindrical shell 12. The lens body 3 is mounted on the swing shell 11, and the light source element 2 is arranged correspondingly to the lens body 3. The swing structure 4 is assembled with the swing shell 11, and the swing structure 4 is used to drive the swing shell 11 to swing relative to the light source element 2. The swing shell 11 is located inside the outer cylindrical shell 12, and the outer cylindrical shell 12 has at least two adjustment slots 121 and multiple... The connecting groove 122 is arranged in a axial direction, and the various adjusting grooves 121 are arranged at intervals. Adjacent adjusting grooves 121 are connected through the connecting groove 122. The swing shell 11 has at least one shell post 13, which is movably embedded in the adjusting groove 121. The shell post 13 is switched to different adjusting grooves 121 by driving force. The swing structure 4 includes a swing gear 41. The flat shell shaft 112 and the swing gear 41 are assembled. The swing gear 41 is rotated by driving force and is used to drive the flat shell shaft 112 to rotate.

[0062] In this way, the lens body 3 is oscillated by the cooperation of the flat shell shaft 112 and the swing gear 41, thereby adjusting the projection angle of the light source 2. Specifically, the swing gear 41 is rotated under the driving force, and the swing gear 41 drives the flat shell shaft 112 to rotate. When the flat shell shaft 112 rotates, it simultaneously causes the main swing shell 111 to swing. The swing of the main swing shell 111 drives the lens body 3 to swing, thereby adjusting the projection angle.

[0063] Example 2 with motor:

[0064] The swing structure 4 includes a swing motor, which is installed on the lamp housing assembly 1. The swing motor has a motor shaft with a motor gear. The motor gear and the swing gear 41 are meshed. The motor gear applies driving force to the swing gear 41 to realize the rotation of the swing gear 41.

[0065] Furthermore, the lens body 3 is oscillated by the rotation of the oscillating gear 41, thereby improving the adjustment accuracy. The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A zoom lens module applied to a lamp, characterized in that, The device includes a lamp housing assembly, a light source element, a lens body, and a swinging structure. The lamp housing assembly includes a swinging shell and an outer cylindrical shell. The lens body is mounted on the swinging shell, and the light source element is arranged correspondingly to the lens body. The swinging structure is assembled with the swinging shell, and the swinging structure is used to drive the swinging shell to swing relative to the light source element. The swinging shell is located inside the outer cylindrical shell, and the outer cylindrical shell has at least two adjustment slots arranged at intervals along the axial direction. The swinging shell has at least one shell post, which is movably embedded in the adjustment slot. The shell post is switched to different adjustment slots by a driving force. 2.The zoom lens module applied to a lamp according to claim 1, wherein, The adjustment slots are arranged in a ring shape, the outer shell has multiple connecting slots, adjacent adjustment slots are connected through the connecting slots, the two ends of the connecting slots are respectively connected to the adjacent adjustment slots, and the connecting slots are inclined and extended. The shell column moves relative to the adjustment slots under the rotational force, and the shell column switches to different adjustment slots through the connecting slots under the push and pull force. Alternatively, the shell pillars are elastically arranged, and the shell pillars are switched to different adjustment slots by push and pull forces. 3.The zoom lens module applied to a lamp according to claim 2, wherein, The outer shell has three connecting slots, which are arranged in a triangular pattern. The swing shell has three shell pillars, which are arranged in a circumferentially spaced pattern. When adjusting the spacing, the three shell pillars simultaneously enter or simultaneously disengage from the three connecting slots.

4. The zoom lens module for a lamp according to any one of claims 1 to 3, wherein The swing housing includes a main swing housing and a flat shell shaft. The lens body is mounted on the main swing housing. The inner end of the flat shell shaft is arranged in a mating arrangement with the main swing housing. The outer end of the flat shell shaft extends axially in a direction away from the main swing housing. The swing structure includes a swing gear. The flat shell shaft and the swing gear are assembled together. The swing gear is driven by a driving force and is arranged to rotate. The swing gear is used to drive the flat shell shaft to rotate. 5.The zoom lens module applied to a lamp according to claim 4, wherein, The swing shell includes an outer swing shell and a circular shell shaft. The circular shell shaft is arranged in a mating arrangement with the main swing shell, and the circular shell shaft and the flat shell shaft are arranged at opposite ends along the main swing shell. The circular shell shaft and the flat shell shaft are respectively assembled with the outer swing shell, and the main swing shell is located inside the outer swing shell. 6.The zoom lens module applied to a lamp according to claim 5, wherein, The swing shell includes a top shell plate, which is stacked and assembled with the outer swing shell. The top shell plate is provided with a fixed tooth, which is meshed with the swing gear. 7.The zoom lens module applied to a lamp according to claim 5, wherein, The flat shell shaft has two axial cross-sections and two axial arc surfaces. The two axial cross-sections are arranged correspondingly, and the two axial arc surfaces are arranged correspondingly. The two axial arc surfaces are arranged in an arched arc shape along opposite directions. The two ends of the axial cross-sections are respectively arranged to meet the two axial arc surfaces, and the axial cross-sections are arranged to extend vertically along the axial direction. The oscillating gear has a gear hole, and the axial cross-sections pass through the gear hole to penetrate the oscillating gear. Both the axial cross-sections and the axial arc surfaces are arranged to lie flat and abut against the gear hole.

8. The zoom lens module for a lamp according to any one of claims 1 to 3, wherein The lens body has an entrance cavity and an exit section. The entrance cavity is arranged correspondingly to the light source. The entrance cavity is arranged in a flared shape along the direction towards the light source, and the entrance cavity is flared to the edge of the lens. The exit section is used to receive light rays passing through the entrance cavity and project light rays outward. 9.The zoom lens module applied to a lamp according to claim 8, wherein, The light-incident cavity includes two light-incident side surfaces and a light-incident arc surface. The light-incident arc surface is arranged in an arc shape along the direction towards the light source. The light-emitting part includes a total reflection surface and a light-emitting surface. The light-incident side surfaces are used to refract light to the total reflection surface, the light-incident arc surface is used to refract light to the light-emitting surface, and the total reflection surface is used to reflect light to the light-emitting surface. The light is projected by the light-emitting surface to form a light spot. The light-incident arc surface is located between the two light-incident side surfaces, and the two light-incident side surfaces are arranged in a gradually inclined manner along the direction towards the light source. 10.The zoom lens module applied to a lamp according to claim 9, wherein, The light-incident side is arranged in a smooth manner, or the light-incident side is provided with microstructures, the microstructures are arranged in a frosted manner, or the microstructures are arranged in a scaly manner.

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