Rotary damping structure and guide rail spotlight
Patent Information
- Application Number
- CN202522777212.7
- 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
The existing angular positioning structure between the connecting rod and the guide rail connector of the spotlight is prone to loosening or becoming too tight when the size is small, which leads to assembly difficulties, inconvenient use, increased costs and affected service life.
A damping component with an integrally formed limiting part and elastic part is set in the groove. The limiting part abuts against the gear plate, which simplifies the number of parts and improves stability. Angle adjustment and locking are achieved through the design of the limiting groove and the stop.
It reduced the failure rate and number of repairs, increased service life, reduced production costs and material usage, and enhanced market competitiveness.
Smart Images
Figure CN224932044U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of lighting devices, specifically relating to a rotation damping structure and a guide rail spotlight. Background Technology
[0002] Track lighting is widely used in commercial displays and homes due to its combination of focused lighting and flexibility. Common track lighting uses a connecting rod at both ends to rotate and connect to the track and the light fixture, thus achieving a wider illumination range.
[0003] In commonly used rail spotlights, the angular positioning between the connecting rod and the rail connector is achieved through an angle gear and a mating component. The mating component typically consists of a spring and a plastic part. The plastic part abuts against the angle gear, while the spring provides the necessary force and maintains the abutment. When angle adjustment is needed, the connecting rod is rotated; a single "click" indicates that the plastic part has moved into the next angle unit of the angle gear.
[0004] However, for smaller track spotlights, the dimensions of the plastic parts and the gear plate are correspondingly reduced, which places higher demands on the fit between the plastic parts and the spring. If the fit between the plastic parts and the spring is too loose, the plastic parts are prone to falling off during assembly or rotation, leading to longer assembly time and the possibility of jamming with the angle gear plate during use. If the fit is too tight, it will make rotation adjustment difficult and increase the cost of parts production and assembly, thus affecting the overall market competitiveness of the light. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a rotational damping structure. By integrating a damping component, consisting of a limiting part and an elastic part, into a groove and having the limiting part abut against the gear disc, the number of parts is reduced, thereby ensuring the stability and effectiveness of the contact between the damping component and the gear disc, reducing the failure rate during use, and increasing the service life.
[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 rotational damping structure, comprising: The guide rail head includes an electrical box and a connecting part disposed in the electrical box. The connecting part is provided with a mounting hole and a toothed disc surrounding the outer periphery of the mounting hole. A connecting rod includes a rod body and a first rotating part disposed at one end of the rod body. The first rotating part includes a plug block, a protrusion disposed on the outer periphery of the lower end of the plug block, and a groove formed on the protrusion. The plug block is inserted into and engaged with a mounting hole, and the groove has an opening. A damping element is disposed in the groove. The damping element includes an elastic part and a limiting part disposed on the elastic part. The limiting part and the elastic part are integrally formed. The connecting rod is rotatably connected to the guide rail head, the limiting part protrudes from the slot and abuts against the gear plate.
[0007] In some implementations, the gear disc is provided with multiple limiting grooves, and the end of the limiting part abuts against the limiting groove; by rotating the connecting rod, the end of the limiting part elastically moves from one limiting groove to another limiting groove.
[0008] In some implementations, the gear disc is provided with a stop block, which is disposed between adjacent limiting grooves, and the end of the limiting part can move elastically along the stop block between adjacent limiting grooves.
[0009] In some implementations, the gear disc is further provided with a stop block between two of the limiting grooves, and the stop block restricts the movement of the limiting part; The width of the stop block is greater than the width of the stop block, and / or the thickness of the stop block is greater than the thickness of the stop block.
[0010] In some implementations, the elastic part includes an elastic body extending in a spiral shape, and a first end and a second end disposed at both ends of the elastic body. The first end abuts against the bottom of the groove, and the second end is formed by bending the elastic body toward the centerline of the elastic part. The limiting part is connected to the second end.
[0011] In some implementations, the limiting portion first extends away from the second end, then bends in an arc and extends back towards the second end, with the direction of extension of the limiting portion parallel to the centerline of the elastic portion.
[0012] In some implementations, the groove body has a boss at the bottom of the groove, and the elastic part has a limiting hole on the inner side of the first end. The boss is inserted into the limiting hole, and the first end abuts against the outer wall of the boss.
[0013] In some implementations, the mounting hole is provided with a protruding ring, the plug block is provided with a groove and an arc-shaped block above the groove, the protruding ring is fitted into the groove, and the arc-shaped block abuts against the protruding ring.
[0014] Secondly, this utility model provides a rail spotlight, including a spotlight body and the aforementioned rotation damping structure. The spotlight body includes a housing, a light source, and an optical assembly. The housing has a receiving cavity and a light outlet. The light source and the optical assembly are disposed in the receiving cavity. The light emitted by the light source is processed by the optical assembly and then emitted from the light outlet. The connecting rod has a second rotating part at the other end of the rod body, and the second rotating part is rotatably connected to the housing.
[0015] In some implementations, a power supply assembly, a rotating shaft, and an anti-slip component are also included. The power supply assembly is disposed in the electrical box and is electrically connected to the light source component. The second rotating part is provided with a first through hole, the housing is provided with a rear cover, the rear cover is provided with a mounting base and a second through hole provided in the mounting base, the second rotating part is disposed in the mounting base, the rotating shaft passes through the first through hole and the second through hole and is fixedly connected to the anti-slip component.
[0016] In summary, this utility model has at least the following advantages: 1. The rotational damping structure provided by this utility model sets a damping component, which is integrally formed with the limiting part and the elastic part, in the groove, and makes the limiting part abut against the gear plate. This reduces the number of parts, and the simplified structure only needs to meet the installation accuracy of the damping component and the groove to ensure stable and effective contact between the limiting part and the gear plate. This reduces the failure rate and maintenance frequency of the structure during use and increases its service life.
[0017] 2. The rail spotlight provided by this utility model, after adopting the above-mentioned rotation damping structure, reduces the number of parts between the rail head and the connecting rod, reduces the amount of material used, and makes the product more environmentally friendly; for smaller products, the difficulty of the manufacturing process and the production cost are effectively reduced, making the rail spotlight product more competitive in the market. Attached Figure Description
[0018] Figure 1 This is an exploded view of the rotational damping structure in Example 1 from a top-down perspective.
[0019] Figure 2 This is an exploded view of the rotational damping structure in Example 1 from a bottom angle.
[0020] Figure 3 This is an axonometric view of the rotational damping structure in Example 1 after being cut along the center of the rod.
[0021] Figure 4 for Figure 2 A magnified view of a portion of point A in the middle.
[0022] Figure 5 This is an exploded view of the rotational damping structure in Example 2 from a top-down perspective.
[0023] Figure 6 This is an axonometric view of the rotational damping structure after it has been cut in Example 2.
[0024] Figure 7 This is an axonometric view of the damping component in Example 2.
[0025] Figure 8 for Figure 6 An enlarged view of point B in the image.
[0026] Figure 9 This is an exploded view of the rail spotlight in Example 3.
[0027] Figure 10 for Figure 9 A magnified view of point C in the middle.
[0028] Marked in the image: 100. Rotational damping structure; 200. Rail spotlights; 1. Guide rail head; 11. Electrical box; 12. Connecting part; 121. Mounting hole; 1211. Protruding ring; 122. Gear plate; 1221. Limiting groove; 1222. Stop block; 1223. Stop block. 2. Connecting rod; 21. Rod body; 22. First rotating part; 221. Insert block; 2211. Groove; 2212. Arc block; 2213. Deformation clearance groove; 222. Protrusion; 223. Groove body; 2231. Groove opening; 2232. Boss; 23. Second rotating part; 231. First through hole; 3. Damping component; 31. Elastic part; 311. Elastic body; 312. First end; 313. Second end; 314. Limiting hole; 32. Limiting part. 4. Spotlight body, 41. Housing, 411. Receiving cavity, 412. Light outlet, 413. Rear cover, 4131. Mounting base, 4132. Second through hole, 42. Light source component, 43. Optical assembly, 431. Lens, 432. Front cover; 5. Power supply components; 6. Rotating shaft components; 7. Anti-slip components; X, center line. Detailed Implementation
[0029] To facilitate understanding of this utility model, a more comprehensive description will be provided 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.
[0030] 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.
[0031] 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.
[0032] 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.
[0033] Example 1: Please see Figures 1-4 This embodiment provides a rotation damping structure 100, which is applied to rotatable lighting fixtures, such as rail spotlights, to provide a horizontal circumferential rotation and locking effect. The rotation damping structure 100 includes a rail head 1, a connecting rod 2, and a damping element 3. Specifically, the rail head 1 includes an electrical box 11 and a connecting portion 12 disposed in the electrical box 11. The connecting portion 12 is provided with a mounting hole 121 and a gear 122 surrounding the outer periphery of the mounting hole 121. The connecting rod 2 includes a rod body 21 and a first rotating part 22 disposed at one end of the rod body 21. The first rotating part 22 includes a plug block 221, a protrusion 222 disposed on the outer periphery of the lower end of the plug block 221, and a groove 223 formed on the protrusion 222. The plug block 221 is inserted into and engaged in the mounting hole 121, and the groove 223 is provided with a slot 2231. A damping member 3 is disposed in the groove 223. The damping member 3 includes an elastic part 31 and a limiting part 32 disposed on the elastic part 31. The limiting part 32 and the elastic part 31 are integrally formed. The connecting rod 2 is rotatably connected to the guide head 1. The limiting part 32 protrudes from the slot 2231 and abuts against the gear plate 122.
[0034] During installation, the elastic part 31 of the damping element 3 is first inserted into the slot 2231 and fixed in the slot 223. Then, the plug block 221 is inserted into the mounting hole 121. Since the limiting part 32 protrudes from the slot 2231, when the plug block 221 is engaged in the mounting hole 121, the limiting part 32 also abuts against the gear plate 122. The elastic part 31 provides the necessary deformation capacity and space for the limiting part 32, so that the limiting part 32 always remains under force and abuts against the gear plate 122, ensuring that the damping element 3 is in working condition.
[0035] Compared to existing solutions that use plastic parts and springs, the integral molding of the limiting part 32 and the elastic part 31 reduces the number of machined parts for the damping element 3, thus reducing assembly workload and improving assembly efficiency. During manufacturing, the rotational damping structure 100 in this embodiment only needs to ensure the dimensional accuracy of the damping element 3 and the groove 223, simplifying installation accuracy requirements. The integrally molded damping element 3 effectively ensures stable contact between the limiting part 32 and the gear plate 122, reducing the failure rate and maintenance frequency during operation, and extending the service life of the guide rail spotlight.
[0036] The rotational damping structure 100 provided in this embodiment uses an elastic structural component 3 made of an elastic metal material for its damping element 3, and the limiting part 32 made of metal material is more wear-resistant. The matching gear disc 122 is made of a harder plastic part or a rubber-coated metal part, reducing wear with the limiting part 32 and further improving its service life. In other embodiments, the damping element 3 can be made of a stretchable rubber part, which further reduces production costs and improves production efficiency.
[0037] Continue reading Figures 1-4 In this embodiment, the gear disk 122 is provided with multiple limiting grooves 1221, which are arranged in a reflective disk shape within the gear disk 122. The end of the limiting part 32 abuts against the limiting groove 1221. When the connecting rod 2 is rotated, the damping member 3 also moves accordingly, and the end of the limiting part 32 elastically moves from one limiting groove 1221 to another, realizing the angle adjustment and locking of the connecting rod 2. Furthermore, in order to make the angle adjustment of the connecting rod 2 more accurate, the gear disk 122 is provided with a stop 1222, which is located between adjacent limiting grooves 1221. The end of the limiting part 32 can elastically move along the stop 1222 between adjacent limiting grooves 1221.
[0038] When the limiting part 32 abuts against the stop block 1222, the limiting part 32 is compressed by the elastic part 31. The elastic part 31 absorbs the pressure through elastic deformation. After being subjected to force, the limiting part 32 passes around the stop block 1222, completing the elastic movement of the limiting part 32 between the limiting grooves 1221. The stop block 1222 provides a restriction, preventing the limiting part 32 from passing over the stop block 1222 without external force, thus ensuring that the angle of the connecting rod 2 after rotation is maintained. In this embodiment, the sides of the stop block 1222 facing the limiting groove 1221 have rounded corners to facilitate the limiting part 32 to avoid, and all the stop blocks 1222 are arranged radially on the gear plate 122.
[0039] In a further embodiment, the gear plate 122 is further provided with a stop block 1223 between the two limiting grooves 1221, and the stop block 1223 restricts the movement of the limiting part 32. The stop block 1223 can provide the necessary limiting effect for the rotation angle of the connecting rod 2. In particular, for rail spotlights connected by cable circuits, since the cables are all located inside the connecting rod 2 and cannot be directly observed, when the rotation angle of the connecting rod 2 exceeds 360°, the cables may twist due to excessive rotation angle. If the rotation angle continues to increase, it may damage the circuit connection.
[0040] With the stop block 1223 installed on the gear disc 122, the rotation angle can not exceed 360°, and it provides the necessary memory function for the rotation damping structure 100. When the limiting part 32 abuts against the stop block 1223, it will be blocked and the rotation will be restricted. When the operator cannot obtain the rotation angle feedback after rotation, that is, when the "click" sound occurs when switching between the two limiting grooves 1221, it prompts the operator that continuing to rotate may exceed the limit, thereby protecting the connection of the internal cable.
[0041] Continue reading Figures 1-4 To distinguish it from the stop block 1222 and improve the recognizability of the stop block 1223, in some embodiments, the width of the stop block 1223 is greater than the width of the stop block 1222. When the limiting part 32 comes into contact with the stop block 1223 due to a large external force and elasticity, no sound signal ("click") is generated between the damping block and the gear plate 122. At the same time, the limiting part 32 is not stuck by the gear plate 122, and the connecting rod 2 can still achieve a rotation effect by slightly twisting it, thereby reminding the operator that the rotation angle of the connecting rod 2 has exceeded the limit and needs to be returned.
[0042] Of course, in this embodiment, in addition to setting the width of the stop block 1223 to be greater than the width of the stop block 1222, the thickness of the stop block 1223 is also adjusted to be greater than the thickness of the stop block 1222. When the limiting part 32 touches the stop block 1223, the thickness of the stop block 1223 is too large, so the limiting part 32 cannot push the elastic part 31 to compress and is stuck in the limiting groove 1221. At this time, the operator cannot continue to rotate the connecting rod 2 in the forward direction to achieve angle adjustment, thus achieving the effect of preventing fooling. In addition, in this embodiment, the stop block 1223 is set as a right-angle step at the position facing the limiting grooves 1221 on both sides, so that the limiting part 32 cannot pass over the stop block 1223 at all. However, in some embodiments, in order to achieve a larger rotation adjustment angle, the width of the stop block 1223 does not need to be greater than the width of the stop block 1222, but only the thickness of the stop block 1223 needs to be greater than the thickness of the stop block 1222. Of course, whether to limit the width of the stop block 1223, the thickness of the stop block 1223, or both, depends on the actual application scenario and manufacturing process, and will not be elaborated here.
[0043] In summary, the rotational damping structure provided in this embodiment reduces the number of parts by placing a damping component, which is integrally formed with the limiting part and the elastic part, in the groove and making the limiting part abut against the gear plate. The simplified structure only needs to meet the installation accuracy of the damping component and the groove to ensure stable and effective contact between the limiting part and the gear plate, thereby reducing the failure rate and maintenance frequency of the structure during use and increasing its service life.
[0044] Example 2: Please Figures 1-4 Based on the above, refer to Figures 5-8 This embodiment provides a rotational damping structure 100, which is an adjustment and optimization based on Embodiment 1. In this embodiment, the elastic part 31 includes an elastic body 311 extending in a spiral shape, and a first end 312 and a second end 313 disposed at both ends of the elastic body 311. The first end 312 abuts against the bottom of the groove 223, and the second end 313 is formed by bending the elastic body 311 toward the center line X of the elastic part 31. The limiting part 32 is connected to the second end 313.
[0045] The elastic body 311 can be formed by winding elastic metal wire, and the second end 313 can be formed by bending the elastic metal wire towards the center line X. When the limiting part 32 is subjected to force, it is transmitted to the elastic part 31, and the elastic part 31 can be evenly stressed. While ensuring structural simplification, the number of process steps is further reduced.
[0046] Specifically, the limiting portion 32 can be formed by further bending the end of the second end 313. It first extends away from the second end 313, and then extends back towards the second end 313 after the arc bend. The limiting portion 32 and the second end 313 are integrally formed, which further simplifies the structure of the damping member 3. After the arc bend, the bending position is at the end of the limiting portion 32, which increases the contact area with the gear 122 and reduces the wear of the gear 122. At the same time, the bent limiting portion 32 has better contact strength and better resistance to deformation. In order to ensure that the damping feel of the connecting rod 2 is consistent in the two rotation directions, and at the same time reduce the problem of the second end 313 being unbalanced and avoid damage to the spring structure due to unbalanced load, in this embodiment, the direction of extension of the limiting portion 32 should be parallel to the center line X of the elastic portion 31.
[0047] More specifically, the groove 223 has a boss 2232 at the bottom, and the elastic part 31 has a limiting hole 314 inside the first end 312. The boss 2232 is inserted into the limiting hole 314, and the first end 312 abuts against the outer wall of the boss 2232. The abutment between the boss 2232 and the limiting hole 314 reduces the difficulty of installing the damping member 3 and the groove 223, ensuring consistency after installation. The accuracy of the limiting hole 314 can be ensured by the inner mold during the winding of the elastic part 31. In addition, with the boss 2232 abutting against the limiting hole 314, the damping member 3 is less likely to detach from the groove 223 when subjected to uneven external force, effectively reducing the jamming between the first rotating part 22 and the connecting part 12 caused by the damping member 3 jumping out of the groove 223, avoiding damage to the limiting part 32 or the gear plate 122, and improving service life.
[0048] exist Figures 5-7 Based on the above, refer to Figure 8 In some embodiments, for the rotational connection between the first rotating part 22 and the connecting part 12, the mounting hole 121 is provided with a convex ring 1211, the insertion block 221 is provided with a groove 2211 and an arc-shaped block 2212 provided above the groove 2211, the convex ring 1211 is engaged in the groove 2211, and the arc-shaped block 2212 abuts against the convex ring 1211. By engaging the convex ring 1211 and the arc-shaped block 2212, the insertion block 221 is inserted into and locked into the mounting hole 121. By engaging the convex ring 1211 and the groove 2211, a rotational connection effect of double locking between the connecting rod 2 and the guide rail head 1 is achieved. By engaging the limiting part 32 with the gear plate 122, the intermittently adjustable rotational damping structure 100 is completed, which is stable and reliable.
[0049] In this embodiment, the plug-in block 221 is also provided with a deformation avoidance groove 2213, which is disposed through the groove 2211 and the arc-shaped block 2212, dividing the two into two parts. The deformation avoidance groove 2213 provides sufficient deformation space for the arc-shaped block 2212 to abut against the avoidance mounting hole 121, thereby bypassing the mounting hole 121 to the side of the convex ring 1211. The groove 2211 and the arc-shaped block 2212 are generally integrally formed by metal machining or injection molding.
[0050] Example 3: Please Figures 1-8 Based on the above, refer to Figures 9-10 This embodiment provides a guide rail spotlight 200, including a spotlight body 4 and a rotation damping structure 100 as described in Embodiment 1 or Embodiment 2. Specifically, the spotlight body 4 includes a housing 41, a light source 42, and an optical assembly 43. The housing 41 has a receiving cavity 411 and a light outlet 412. The light source 42 and the optical assembly 43 are disposed within the receiving cavity 411. The light emitted by the light source 42 is processed by the optical assembly 43 and then emitted from the light outlet 412. The connecting rod 2 has a second rotating part 23 at the other end of the rod body 21, and the second rotating part 23 is rotatably connected to the housing 41.
[0051] Generally, the optical component 43 includes a lens 431 for focusing light and a front cover 432 for processing the emitted light. The light source 42 can be an LED chip or other light-emitting element, and the emitted light passes through the lens 431 and the front cover 432 in sequence and is concentrated outward. The second rotating part 23 is rotatably connected to the side of the housing 41 away from the light outlet 412, realizing the elevation angle adjustment effect of the spotlight body 4. With the rotation damping structure 100, compared with the guide rail spotlight using plastic parts and springs, the number of parts in the whole lamp is reduced. The reduction of parts leads to the reduction of processing steps and material usage, making the guide rail spotlight 200 product provided in this embodiment more environmentally friendly.
[0052] For the small-sized rail spotlight 200, it is only necessary to ensure the fit tolerance of the damping component 3 and the groove 223 to achieve the effect of rotational damping. The production process difficulty and production cost are reduced, which improves its market competitiveness among similar products.
[0053] In this embodiment, the provided rail spotlight 200 further includes a power supply component 5, a pivot component 6, and an anti-slip component 7. The power supply component 5 is disposed in the electrical box 11 and is electrically connected to the light source component 42. In use, the power supply component 5 can be connected to the electrical connection terminals of the light source component 42 and the rail head 1 respectively to achieve stable power supply to the light source component 42.
[0054] Furthermore, the second rotating part 23 is provided with a first through hole 231, and the housing 41 is provided with a rear cover 413 on the side opposite to the optical component 43. The rear cover 413 is provided with a mounting base 4131 and a second through hole 4132 provided in the mounting base 4131. When the second rotating part 23 is rotatably connected to the housing 41, the second rotating part 23 is disposed in the mounting base 4131, and the first through hole 231 and the second through hole 4132 are coaxial. At this time, the rotating shaft 6 passes through the first through hole 231 and the second through hole 4132 and is fixedly connected with the anti-slip component 7, completing the adjustable rotating shaft connection. In this embodiment, the rotating shaft 6 is a standard full-thread bolt, and the anti-slip component 7 is an anti-slip nut, which is fitted and locked together. In other embodiments, the rotating shaft 6 can be a double-ended stud with an optical axis in the middle or a custom metal shaft, and the anti-slip component 7 is a washer nut with a rubber or metal spring with a high coefficient of friction. Since there are many structural designs for the pivot 6 and the anti-slip component 7, they will not be described in detail here.
[0055] In summary, the rail spotlight provided in this embodiment, after adopting the above-mentioned rotation damping structure, reduces the number of parts between the rail head and the connecting rod, reduces the amount of material used, and makes the product more environmentally friendly. For smaller products, the processing and assembly process difficulty and cost are reduced, making the rail spotlight product more competitive in the market.
[0056] 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 rotational damping structure, characterized in that, include: The guide rail head includes an electrical box and a connecting part disposed in the electrical box. The connecting part is provided with a mounting hole and a toothed disc surrounding the outer periphery of the mounting hole. A connecting rod includes a rod body and a first rotating part disposed at one end of the rod body. The first rotating part includes a plug block, a protrusion disposed on the outer periphery of the lower end of the plug block, and a groove formed on the protrusion. The plug block is inserted into and engaged with a mounting hole, and the groove has an opening. A damping element is disposed in the groove. The damping element includes an elastic part and a limiting part disposed on the elastic part. The limiting part and the elastic part are integrally formed. The connecting rod is rotatably connected to the guide rail head, the limiting part protrudes from the slot and abuts against the gear plate.
2. The rotational damping structure according to claim 1, characterized in that, The gear disc is provided with multiple limiting grooves, and the end of the limiting part abuts against the limiting groove; when the connecting rod is rotated, the end of the limiting part elastically moves from one limiting groove to another limiting groove.
3. The rotational damping structure according to claim 2, characterized in that, The gear plate is provided with a stop block, which is located between adjacent limiting grooves. The end of the limiting part can move elastically between adjacent limiting grooves along the stop block.
4. The rotational damping structure according to claim 3, characterized in that, The gear disc is further provided with a stop block between two of the limiting grooves, and the stop block restricts the movement of the limiting part; The width of the stop block is greater than the width of the stop block, and / or the thickness of the stop block is greater than the thickness of the stop block.
5. The rotational damping structure according to any one of claims 1-4, characterized in that, The elastic part includes an elastic body extending in a spiral shape, and a first end and a second end disposed at both ends of the elastic body. The first end abuts against the bottom of the groove, and the second end is formed by bending the elastic body toward the center line of the elastic part. The limiting part is connected to the second end.
6. The rotational damping structure according to claim 5, characterized in that, The limiting portion first extends away from the second end, and after an arc-shaped bend, extends back towards the second end. The direction in which the limiting portion extends is parallel to the center line of the elastic portion.
7. The rotational damping structure according to claim 6, characterized in that, The groove has a boss at the bottom, and the elastic part has a limiting hole on the inner side of the first end. The boss is inserted into the limiting hole, and the first end abuts against the outer wall of the boss.
8. The rotational damping structure according to claim 1, characterized in that, The mounting hole is provided with a convex ring, the plug block is provided with a groove and an arc-shaped block above the groove, the convex ring is fitted into the groove, and the arc-shaped block abuts against the convex ring.
9. A rail spotlight, characterized in that, Includes the spotlight body and the rotation damping structure as described in any one of claims 1-8. The spotlight body includes a housing, a light source, and an optical assembly. The housing has a receiving cavity and a light outlet. The light source and the optical assembly are disposed in the receiving cavity. The light emitted by the light source is processed by the optical assembly and then emitted from the light outlet. The connecting rod has a second rotating part at the other end of the rod body, and the second rotating part is rotatably connected to the housing.
10. The rail spotlight according to claim 9, characterized in that, It also includes a power supply assembly, a rotating shaft, and an anti-slip component. The power supply assembly is disposed in the electrical box and is electrically connected to the light source component. The second rotating part is provided with a first through hole, the housing is provided with a rear cover, the rear cover is provided with a mounting base and a second through hole provided in the mounting base, the second rotating part is disposed in the mounting base, the rotating shaft passes through the first through hole and the second through hole and is fixedly connected to the anti-slip component.