Translation adjustment structure and lamp

CN224932666UActive Publication Date: 2026-11-03HUIZHOU NVC OPTOELECTRONICS TECH CO LTD
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Patent Information

Application Number
CN202522786712.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-29
Publication Date
2026-11-03
Estimated Expiration
2035-12-29

AI Technical Summary

Technical Problem

Existing spotlights, when adjusting the beam position and illumination angle, cannot meet the stringent application requirements of rotation methods. Furthermore, rail lights are bulky, costly, and difficult to fine-tune.

Method used

Bosses and limiting parts are set on the light-emitting part and the limiting part of the lamp, and they cooperate with the sliding groove and toothed surface of the adapter to achieve precise translation and fine adjustment of the lamp body.

Benefits of technology

It achieves precise translation and adjustment of the lamp body, has a simple structure, low cost, is suitable for miniaturization design, and meets market demand.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of translation adjustment structure, comprising: lamp body, adapter and limiting piece;Lamp body includes main part and fixed on the light outlet and limiting portion of main part, light outlet is equipped with boss on outside wall, and limiting portion is adjacent to light outlet;Adapter includes surround, sliding slot and rack, surround is formed around and moves area, sliding slot is set in inside of surround, and sliding slot is communicated in moving area, rack is set to one side of surround towards lamp body;Limiting piece is installed in limiting portion in a telescopic manner;Light outlet is equipped with light outlet end, light outlet end extends into moving area, limiting piece elastically abuts on rack, boss is slidably connected in sliding slot, and light outlet end can be horizontally moved in moving area along sliding slot.The translation adjustment structure is slidably connected in sliding slot by boss and limiting piece elastically abuts on rack, and the precision translation fine adjustment of lamp body is realized by mutual cooperation.The utility model also provides lamp using the above-mentioned translation adjustment structure.
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Description

Technical Field

[0001] This utility model belongs to the technical field of lighting devices, specifically relating to a translation adjustment structure and a lamp. Background Technology

[0002] Spotlights, as a common lighting fixture, are mainly used for accent lighting or decorative lighting and are widely used in various scenarios such as homes, commercial spaces, exhibitions, and stages.

[0003] During the use of spotlights, the beam angle is usually adjusted by rotating the spotlight body and the external support structure. This allows for changes in the beam direction and angle according to actual application needs, achieving different lighting effects.

[0004] However, with the continuous expansion of applications, simply relying on rotation is no longer sufficient to meet market demands. Especially in venues such as art exhibitions and commercial spaces where the position and angle of the beam are critical, even a slight deviation in the angle of a single beam can affect the final aesthetic effect. Current solutions often involve designing spotlights as track lights or fixing the entire fixture to a sliding rail. While this solves the horizontal movement problem, it results in a larger overall size, higher cost, and greater difficulty in fine-tuning. Therefore, addressing these needs has become a new challenge for spotlight manufacturers, aiming to fill a market gap. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a translation adjustment structure and a lamp. The translation adjustment structure achieves relatively precise translational fine-tuning of the lamp body by setting bosses and limiting members on the light-emitting part and the limiting part of the lamp, respectively, and cooperating with the sliding groove and toothed surface set on the adapter.

[0006] The technical effect to be achieved by this utility model is realized through the following technical solution: In a first aspect, this utility model provides a translation adjustment structure, comprising: The lamp body includes a main body, a light-emitting part, and a limiting part. The light-emitting part and the limiting part are fixed to the main body. The light-emitting part has a protrusion on its outer side wall, and the limiting part is adjacent to the light-emitting part. The adapter includes a surrounding edge, a sliding groove, and a rack. The surrounding edge forms a moving area, the sliding groove is disposed inside the surrounding edge and communicates with the moving area, and the rack is disposed on the side of the surrounding edge facing the lamp body. A limiting component is retractably installed in the limiting part; The light-emitting part is provided with a light-emitting end, which extends into the moving area. The limiting member elastically abuts against the rack, the boss is slidably connected to the slide groove, and the light-emitting end can move horizontally along the slide groove in the moving area.

[0007] In some implementations, the light-emitting part has a cylindrical structure, and the two protrusions are circumferentially arranged on the outer wall of the light-emitting part in a centrally symmetrical manner.

[0008] In some implementations, the lamp body has a base surface at the end away from the light-emitting end, the projection of the light-emitting part on the base surface has a horizontal axis, and the projections of the two protrusions on the base surface are respectively located on both sides of the horizontal axis.

[0009] In some implementations, the limiting portion is adjacent to at least one of the bosses, and the projection of the limiting portion on the base surface and the projection of the adjacent boss on the base surface are respectively located on both sides of the horizontal axis.

[0010] In some implementations, the adapter further includes a slide rail extending from the perimeter toward the moving area, and the groove is disposed between two of the slide rails.

[0011] In some implementations, the adapter further includes an inlet located at one end of the slide groove, through which the boss enters or exits the slide groove from the moving area.

[0012] In some implementations, the chute includes a first chute and a second chute, which are parallel to each other and opened inside the surrounding edge. The surrounding edge is provided with a stop block, which is located at the other end of the first chute.

[0013] In some implementations, the slide rail is connected to the stop block, the rack is disposed on the slide rail above the first groove, and the rack extends to the top of the stop block.

[0014] In some implementations, the limiting part is provided with a limiting groove, and the limiting member includes a spring and a limiting ball. The spring is installed in the limiting groove, the limiting ball is connected to the spring, and the limiting ball elastically abuts against the rack.

[0015] Secondly, this utility model provides a lamp, including an outer lamp body and the aforementioned translation adjustment structure. The outer lamp body includes a face ring and optical components. The face ring is provided with a light-emitting cavity. The light-emitting part extends into the light-emitting cavity, and the lamp body can rotate relative to the outer lamp body.

[0016] In summary, this utility model has at least the following advantages: 1. The translation adjustment structure provided by this utility model achieves fine-tuning of the lamp body in the horizontal direction by setting a boss in the light-emitting part and sliding the boss to the groove. The limiting member elastically abuts against the rack to generate damping during movement and limiting effect when stationary, ensuring the accuracy and stability of the lamp body movement, thereby meeting the purpose of fine translation adjustment of the lamp.

[0017] 2. The lamp provided by this utility model, employing the aforementioned translational adjustment structure, only requires a boss and a limiting component to be provided in the light-emitting part and the limiting part of the lamp body, respectively, and a corresponding groove and rack to be provided in the adapter. This achieves a relatively precise translational fine-tuning effect for the lamp body. The overall structure is simple and facilitates the miniaturization of the lamp design. Furthermore, compared to existing technical solutions, its production cost is lower, making it more competitive in the market. Attached Figure Description

[0018] Figure 1 This is a cross-sectional view of the translation adjustment structure in Example 1.

[0019] Figure 2 This is an axonometric view of the lamp body in Example 1.

[0020] Figure 3 This is an isometric view of the adapter in Example 1.

[0021] Figure 4 This is a perspective view of Example 1 as seen from the front of the base plane.

[0022] Figure 5 This is an isometric view of the adapter in Example 2.

[0023] Figure 6 This is an axonometric view of the other side of the adapter in Example 2.

[0024] Figure 7 This is a perspective view of the boss separating from the groove, as seen from the front view of the base surface in Example 2.

[0025] Figure 8 This is a schematic diagram of the contact between the spring and the limiting ball and the rack in Example 2.

[0026] Figure 9 This is a cross-sectional view of the lamp in Example 3.

[0027] Marked in the image: 100. Translation adjustment structure; 200. Lighting fixtures; 201. Light source components; 202. Lenses; 1. Lamp body; 11. Main body; 12. Light-emitting part; 121. Boss; 122. Light-emitting end; 13. Limiting part; 131. Limiting groove; 14. Base surface. 2. Adapter, 21. Edge, 211. Stop block, 22. Slide groove, 221. First groove, 222. Second groove, 23. Rack, 231. Tooth groove, 24. Moving area, 25. Slide rail, 26. Inlet; 3. Limiting components; 31. Spring; 32. Limiting ball; 4. Outer lamp body, 41. Face ring, 42. Light emitting cavity, 43. Optical parts; X, horizontal axis. Detailed Implementation

[0028] To facilitate understanding of this utility model, a more comprehensive description will be given below with reference to the accompanying drawings and specific embodiments. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0029] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0030] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. 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, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] 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 invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0032] Example 1: Please see Figures 1-4This embodiment provides a translation adjustment structure 100, applied to spotlights or downlights requiring slight translation of the lamp body 1. The translation adjustment structure 100 includes a lamp body 1, a connecting member 2, and a limiting member 3. Specifically, the lamp body 1 includes a main body 11, a light-emitting part 12, and a limiting part 13. The light-emitting part 12 and the limiting part 13 are fixed to the main body 11, and generally, they are located on one side of the light-emitting direction of the lamp body 1. The light-emitting part 12 has a boss 121 on its outer side wall, and the limiting part 13 is adjacent to the light-emitting part 12. The connecting member 2 includes a surrounding edge 21, a sliding groove 22, and a rack 23. The surrounding edge 21 surrounds to form a moving area 24, the sliding groove 22 is located inside the surrounding edge 21 and communicates with the moving area 24, and the rack 23 is located on the side of the surrounding edge 21 facing the lamp body 1. The limiting member 3 is telescopically installed in the limiting part 13. The light-emitting part 12 is provided with a light-emitting end 122, which extends into the moving area 24. The limiting member 3 elastically abuts against the rack 23, the boss 121 is slidably connected to the slide groove 22, and the light-emitting end 122 can move horizontally in the moving area 24 along the slide groove 22.

[0033] The sliding direction of the boss 121 within the slide groove 22 is the same as the moving direction of the lamp body 1. Correspondingly, to achieve a damping feel in the moving direction, the rack 23 is positioned in a direction substantially consistent with the sliding direction of the boss 121. The bosses 121 are generally arranged in pairs, located on the outer wall of the light-emitting section 12, and slidably connected within the slide groove 22. The sliding between the bosses 121 and the slide groove 22 causes the lamp body 1 to slide horizontally within the moving area 24, achieving the effect of relative horizontal fine-tuning of the lamp body 1.

[0034] The limiting member 3 is telescopically mounted within the limiting part 13 and elastically abuts against the rack 23, causing the limiting member 3 to elastically engage between the teeth of the rack 23. This creates a damping sensation during movement, providing the operator with a certain displacement indication and ensuring the accurate displacement distance of the lamp body 1. Simultaneously, when the operator ceases to perform translational operations on the lamp body 1, the limiting member 3 is confined within the teeth of the rack 23. Without external force, the limiting member 3 cannot move, thus limiting the displacement of the lamp body 1. With this structure, the lamp can meet the needs of scenarios requiring precise translational adjustment.

[0035] In this embodiment, the light-emitting part 12 has a cylindrical structure, and the protrusion 121 extends from the outer wall of the cylindrical structure. In order to meet the basic degree of freedom of translation, at least two protrusions 121 are provided. The two protrusions 121 are arranged circumferentially on the outer wall of the light-emitting part 12 in a centrally symmetrical manner. Correspondingly, the two protrusions 121 are slidably connected in two different sliding grooves 22 to complete the translational adjustment of the lamp body 1.

[0036] Furthermore, to avoid unnecessary deflection of the boss 121 within the slide groove 22 and to improve the stability of the lamp body 1 before and after sliding, the end of the boss 121 is generally positioned near the bottom of the slide groove 22. Simultaneously, the lamp body 1 has a base surface 14 at the end furthest from the light-emitting end 122. The projection of the light-emitting part 12 onto this base surface 14 has a horizontal axis X perpendicular to the translation direction. The projections of the two bosses 121 onto the base surface 14 are located on opposite sides of the horizontal axis X. The eccentrically positioned bosses 121 can be disengaged from the slide groove 22 by rotating the lamp body 1 at the bottom of the deeper groove 22, thus enabling the assembly and disassembly of the lamp body 1 and the adapter 2. Compared to the scheme where the bosses 121 directly fall into the horizontal axis X, the eccentrically positioned bosses 121 provide more space for other structures, meeting other functional requirements. In this embodiment, the distance between the center line of the boss 121 and the horizontal axis X is 6 mm, which is much greater than the distance from the center line of the boss 121 to any outer side of the boss 121.

[0037] To avoid the point of action of the boss 121 on the slide 22 being too close to the point of action of the limiting member 3, thus preventing a dense local force from forming within a small area of ​​the adapter 2, in a further embodiment, the limiting part 13 adjacent to the light-emitting part 12 is at least adjacent to one boss 121, and the projection of the limiting part 13 on the base surface 14 and the projection of the adjacent boss 121 on the base surface 14 are respectively located on both sides of the horizontal axis X. After being located on both sides of the horizontal axis X, the position of action of the limiting member 3 on the rack 23 and the position of action of the boss 121 on the slide 22 are separated, the force points of the adapter 2 are dispersed, and the force concentration is avoided. Especially for smaller-sized lamps, because the points of action of the boss 121 and the limiting member 3 are too close, long-term use may cause local aging and deformation of the adapter 2, affecting subsequent translation adjustment.

[0038] It should be noted that the light-emitting part 12 in this embodiment has a cylindrical structure, and for the sake of uniformity in appearance, its main body 11 is also made into a cylindrical structure accordingly. Therefore, the distance between the limiting part 13 and the adjacent protrusion 121 in the figure has reached a relatively large distance under this limitation. In some embodiments, the lamp body 1 may adopt a square or other structure, and the distance between its limiting part 13 and the adjacent protrusion 121 may be larger than that in this embodiment. However, since the light-emitting part 12 may also be set in a square shape, the corresponding light emission effect will be affected to some extent. The details will not be described in detail here.

[0039] In summary, the translation adjustment structure provided in this embodiment achieves fine-tuning of the lamp body in the horizontal direction by setting a boss on the light-emitting part and sliding the boss to the groove. The limiting member elastically abuts against the rack, generating damping during movement and limiting effect when stationary, ensuring the accuracy and stability of the lamp body's movement, thereby fulfilling the purpose of fine translation adjustment of the lamp.

[0040] Example 2: Please Figures 1-4 Based on the above Figures 5-9 This embodiment provides a translation adjustment structure 100, which is an adjustment and optimization based on Embodiment 1. Unlike Embodiment 1, the translation adjustment structure 100 in this embodiment further includes a slide rail 25, which extends from the perimeter 21 toward the moving area 24. A groove 22 is disposed between two slide rails 25. The two slide rails 25 in the same groove 22 provide positional constraints for the boss 121 in two directions, ensuring stability when the operator moves the lamp body 1.

[0041] Furthermore, in some embodiments, the projection of the boss 121 onto the plane perpendicular to the horizontal axis X is a quadrilateral with a pair of parallel planes. The two opposing parallel planes of the quadrilateral abut against the two slide rails 25 of the same slide groove 22, achieving sliding. Sliding through surface contact provides greater stability during movement and greater resistance when stationary, resulting in a better moving feel and stability after movement. In other embodiments, the projection of the boss 121 onto the plane perpendicular to the horizontal axis X can also be circular or elliptical.

[0042] To facilitate the disengagement of the light-emitting part 12 from the moving area 24, in some embodiments, the adapter 2 further includes an inlet 26 located at one end of the slide groove 22. The boss 121 enters or exits the slide groove 22 from the moving area 24 through the inlet 26. In actual operation, it is only necessary to move one side of the boss 121 to a position close to the inlet 26, and then rotate the light-emitting part 12 to move the boss 121 out or into the slide groove 22. More specifically, at the inlet 26, the inner sidewall of the adapter 2 follows the same rotation trajectory as the boss 121, so that the boss 121 can more smoothly enter and exit the inlet 26.

[0043] In some embodiments, the slide 22 includes a first groove 221 and a second groove 222, which are parallel to each other and formed inside the perimeter 21. The protrusions 121 on both sides can slide within the first groove 221 and the second groove 222, respectively. The perimeter 21 is provided with a stop block 211, located at the end of the first groove 221 opposite to the inlet 26. The stop block 211 limits the movement distance of the protrusions 121 within the first groove 221, preventing the protrusions 121 from sliding beyond their limit within the slide 22, thus avoiding problems such as abnormal separation of the lamp body 1 and the adapter 2.

[0044] Furthermore, the slide rail 25 is connected to the stop block 211, which, while ensuring the limiting position, also improves the structural strength of the slide rail 25 near the stop block 211 and reduces the thermal deformation during the molding of the groove 22. The rack 23 is disposed on the slide rail 25 above the first groove 221 and extends to the top of the stop block 211. The boss 121 and the limiting member 3, which are disposed on the same side and on both sides of the horizontal axis X, can both act on the same slide rail 25. The rack does not need to extend to the entire slide rail 25 to meet the corresponding damping effect, reduce the length of gear molding, and reduce the cost of mold manufacturing. In addition, in this embodiment, the slide rail 25 is also provided with a notch at the inlet 26 position on the side of the second groove 222 near the stop block 211. The notch facilitates the boss 121 to move out of the moving area 24 more quickly after sliding out of the inlet 26.

[0045] like Figure 8 As shown, in this embodiment, the limiting part 13 is provided with a limiting groove 131, and the limiting member 3 includes a spring 31 and a limiting ball 32. The spring 31 is installed in the limiting groove 131, and the limiting ball 32 is connected to the spring 31, and the limiting ball 32 elastically abuts against the rack 23. The spring 31 provides damping pressure, pressing the limiting ball 32 against the toothed groove 231 on the rack 23, thereby achieving a damping abutment effect between the rack 23 and the limiting member 3. The limiting ball 32 can roll back and forth between the toothed grooves 231, reducing the wear of the limiting ball 32 and the rack 23, and improving the service life of the rack 23 and the limiting member 3. Of course, the limiting member 3 can also be made of elastic rubber to replace the spring 31, or a spring 31 can be combined with a ball-head pin structure to achieve a limiting damping effect. Since there are many possible solutions for the limiting member 3, they will not be described in detail here.

[0046] Example 3: Please Figures 1-8 Based on the above Figure 9 This embodiment provides a lamp 200, including an outer lamp body 4 and a translation adjustment structure 100 as described in Embodiment 1 or Embodiment 2. The outer lamp body 4 includes a face ring 41 and an optical element 43. The face ring 41 has a light-emitting cavity 42, and the optical element 43 is disposed at one end of the light-emitting cavity 42. The light-emitting part 12 extends into the light-emitting cavity 42 from the other end. A portion of the outer wall of the adapter 2 is disposed within the light-emitting cavity 42 and is rotatably connected to the face ring 41. Through the relative rotation between the adapter 2 and the face ring 41, the lamp body 1 can rotate relative to the outer lamp body 4.

[0047] With the translation adjustment structure 100 of Embodiment 1 or Embodiment 2, in addition to the traditional angle adjustment of spotlights, precise translational fine-tuning in a fixed angle direction can also be achieved through the cooperation of the adapter 2 and the lamp body 1. The adapter 2, as an intermediate component for translation and rotation, is located on the outside of the light-emitting part 12 and partially located inside the light-emitting cavity 42. This does not affect the light output of the lamp 200 and also reduces space occupation. Only a boss 121 needs to be provided on the light-emitting part 12 of the lamp body 1, which slides and connects with the slide groove 22 of the adapter 2, and the limiting member 3 in the limiting part 13 abuts against the rack 23 of the rotating part. There is no need to add a translation kit as in the prior art, which effectively simplifies the overall lamp structure. In addition, the simplified structure can be changed according to the size of the lamp body 1, and the volume of the lamp 200 can be proportionally reduced, making it more suitable for small lamps 200.

[0048] Secondly, by simply incorporating the boss 121 and the slide 22, as well as the two combinations of the limiting member 3 and the rack 23 into the structure, without the need for externally added moving function modules, the production cost and process difficulty of the entire lamp are lower than existing solutions, making it more competitive in the market.

[0049] Furthermore, the lamp 200 described in this embodiment also includes a light source assembly 201 and a lens 202, both of which are disposed inside the light-emitting section 12. The light emitted from the light source assembly 201 is processed by the lens 202 and emitted from the end of the light-emitting end 122, then passes through the light-emitting cavity 42 and enters the optical element 43 for secondary processing, before being emitted to the outside.

[0050] When the lamp 200 needs to be adjusted in angle and translation, the lamp body 1 is rotated. Since the adapter 2 is rotatably connected to the face ring 41, the illumination angle can be adjusted. After the angle adjustment is completed, the lamp body 1 can be pushed to make the light-emitting part 12 and the adapter 2 horizontally displace, so as to achieve the purpose of fine-tuning translation at a certain angle and achieve richer and more complex light illumination states.

[0051] In summary, the lamp provided in this embodiment, by adopting the translation adjustment structure of Embodiment 1 or Embodiment 2, only requires a boss and a limiting component to be provided in the light-emitting part and the limiting part of the lamp body, respectively, and a corresponding groove and rack to be provided in the adapter. This achieves a relatively precise translational fine-tuning effect for the lamp body. The overall structure is simple and does not affect the miniaturization design of the lamp. At the same time, compared with the existing technical solutions, its production cost is lower and it is more competitive in the market.

[0052] The above description is merely an example and illustration of the structure of this utility model, and while the description is quite specific and detailed, it should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these obvious substitutions all fall within the protection scope of this utility model.

Claims

1. A translation adjustment structure, characterized in that, include: The lamp body includes a main body, a light-emitting part, and a limiting part. The light-emitting part and the limiting part are fixed to the main body. The light-emitting part has a protrusion on its outer side wall, and the limiting part is adjacent to the light-emitting part. The adapter includes a rim, a groove, and a rack. The rim surrounds and forms a moving area. The groove is located inside the rim and communicates with the moving area. The rack is located on the side of the rim facing the lamp body. as well as A limiting component is retractably installed in the limiting part; The light-emitting part is provided with a light-emitting end, which extends into the moving area. The limiting member elastically abuts against the rack, the boss is slidably connected to the slide groove, and the light-emitting end can move horizontally along the slide groove in the moving area.

2. The translation adjustment structure according to claim 1, characterized in that, The light-emitting part has a cylindrical structure, and the two protrusions are arranged circumferentially on the outer wall of the light-emitting part in a centrally symmetrical manner.

3. The translation adjustment structure according to claim 2, characterized in that, The lamp body has a base surface at one end away from the light-emitting end. The projection of the light-emitting part on the base surface has a horizontal axis, and the projections of the two protrusions on the base surface are respectively located on both sides of the horizontal axis.

4. The translation adjustment structure according to claim 3, characterized in that, The limiting part is adjacent to at least one of the bosses, and the projection of the limiting part on the base surface and the projection of the adjacent boss on the base surface are respectively located on both sides of the horizontal axis.

5. The translation adjustment structure according to claim 1, characterized in that, The adapter also includes a slide rail, which is formed by the perimeter extending toward the moving area, and the groove is disposed between the two slide rails.

6. The translation adjustment structure according to claim 5, characterized in that, The adapter also includes an inlet, which is located at one end of the slide groove. The boss enters or exits the slide groove from the moving area through the inlet.

7. The translation adjustment structure according to claim 6, characterized in that, The chute includes a first chute and a second chute, which are parallel to each other and are located inside the surrounding edge. The surrounding edge is provided with a stop block, which is located at the other end of the first chute.

8. The translation adjustment structure according to claim 7, characterized in that, The slide rail is connected to the stop block, and the rack is disposed on the slide rail above the first groove and extends to the top of the stop block.

9. The translation adjustment structure according to claim 1, characterized in that, The limiting part is provided with a limiting groove, and the limiting component includes a spring and a limiting ball. The spring is installed in the limiting groove, the limiting ball is connected to the spring, and the limiting ball elastically abuts against the rack.

10. A lighting fixture, characterized in that, The invention includes an outer lamp body and a translation adjustment structure as described in any one of claims 1-9. The outer lamp body includes a surface ring and an optical component. The surface ring is provided with a light-emitting cavity. The light-emitting part extends into the light-emitting cavity, and the lamp body is rotatable relative to the outer lamp body.