An internally focused LED spotlight

Abstract

This utility model relates to the field of LED spotlight technology, and more particularly to an internally focused LED spotlight, comprising a lamp holder, a terminal block installed at the upper center of the lamp holder, several heat dissipation fins fixedly covering the upper end of the lamp holder, several LED beads fixedly distributed on the side of the lamp holder away from the terminal block, a housing installed on the side of the lamp holder near the LED beads, a light-transmitting glass plate embedded and fixedly embedded at the end of the housing, and a limiting rod fixedly installed on one side of the lamp holder, with a limiting sleeve slidingly fitted onto the surface of the limiting rod. In this design, when the lens frame moves horizontally along the convex lens, the limiting sleeve slides stably on the limiting rod, avoiding the complexity and instability of traditional external focusing structures. This internal focusing method not only simplifies the operation process but also improves focusing accuracy, allowing the light to be focused more accurately, meeting the lighting needs of different scenarios, while avoiding dust contamination or mechanical wear problems that may arise from external focusing mechanisms.

Description

Technical Field

[0001] This utility model relates to the field of LED spotlight technology, and in particular to an LED spotlight with internal focusing. Background Technology

[0002] LED spotlights are advanced lighting devices widely used in various settings, such as homes, businesses, industries, and outdoor lighting. Compared to traditional spotlights, LED spotlights offer higher energy efficiency, longer lifespan, and better beam control.

[0003] An LED spotlight is a spotlight that uses LEDs (light-emitting diodes) as its light source. The development of LED technology has given this lighting equipment significant advantages in terms of energy efficiency, lifespan, and environmental friendliness. According to the authorized publication number "CN221858412U", an internally focused LED spotlight is disclosed, including a lamp cup. An LED bead is disposed on the bottom inner side of the lamp cup. A fixing ring is fixedly connected to the upper part of the inner wall of the lamp cup. An internally threaded cylinder is rotatably connected to the inner side of the fixing ring. An externally threaded sleeve is threadedly connected to the inner side of the internally threaded cylinder. A lens is disposed on the lower inner side of the externally threaded sleeve. A bushing is fixedly connected to the upper outer side of the externally threaded sleeve, above the fixing ring. This invention features a fixing ring on the inner side of the lamp cup, with an inner threaded cylinder and an outer threaded sleeve connected to each other on the inner side of the fixing ring. The lens is built into the outer threaded sleeve, and an elastic guide component is provided on the outer side of the outer threaded sleeve. In this way, the distance between the lens and the lamp bead can be adjusted inward by the threaded movement between the inner threaded cylinder and the outer threaded sleeve. This not only satisfies the normal focusing function, but also makes the internal adjustment more aesthetically pleasing.

[0004] Currently, most LED spotlights are direct-beam type. In some stage scenes and other environments with specific lighting requirements, if the light from LED spotlights cannot be flexibly focused or diffused, they can only provide a fixed beam angle. This means that users cannot adjust the concentration and diffusion range of the light according to actual needs, lacking flexibility. In situations requiring focused lighting, spotlights with a fixed beam angle may not provide sufficient brightness, while in situations requiring diffused lighting, spotlights with a fixed beam angle may cause the light to be too concentrated and unable to cover the entire area. In situations requiring precise lighting, spotlights with a fixed beam angle may not provide sufficient beam control, resulting in scattered or uneven light. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned shortcomings in the existing technology by proposing an internally focused LED spotlight.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an internally focused LED spotlight, including a lamp holder, a terminal block installed at the upper middle position of the lamp holder, a plurality of heat dissipation fins fixedly covered on the upper end of the lamp holder, a plurality of LED beads distributed and fixedly arranged on the side of the lamp holder away from the terminal block, a housing installed on the side of the lamp holder close to the LED beads, and a light-transmitting glass plate embedded and fixedly embedded at the end of the housing;

[0007] A limiting rod is fixedly installed on one side of the lamp holder. A limiting sleeve is slidably fitted onto the surface of the limiting rod. An anti-detachment block is fixedly installed at the end of the limiting rod away from the lamp holder. A lens frame is fixed to the outer ring wall of the limiting sleeve by a bracket. A convex lens is embedded in the inner side of the lens frame.

[0008] Preferably, a bearing is also fixedly installed on the surface of the lamp holder, and a shaft is installed on the inner ring wall of the bearing with an interference fit, and the surface of the shaft is provided with external threads.

[0009] Preferably, a threaded sleeve is installed on the surface of the external thread, and the outer ring wall of the threaded sleeve is fixedly installed to the surface of the frame by a bracket.

[0010] Preferably, a bearing two is fixedly installed through one side of the outer shell, and a knob is installed on the inner ring wall of the bearing two with an interference fit. A drive bevel gear is fixedly installed at the end of the knob.

[0011] Preferably, a linkage bevel gear is fixedly sleeved on the surface of the shaft, and the surface of the linkage bevel gear and the surface of the drive bevel gear are meshed with each other.

[0012] Preferably, alignment seats are fixedly installed on both sides of the lamp holder by brackets, and alignment blocks are fixedly installed on both sides of the outer shell by brackets, with the surface of the alignment blocks slidingly sleeved with the interior of the alignment seats.

[0013] Preferably, the surface of the alignment block is provided with a pin groove, and a locking pin is slidably sleeved inside the pin groove. The end of the locking pin has a curved structure, and a spring is provided inside the pin groove. The two ends of the spring are fixedly installed to the surface of the locking pin and the inner wall of the pin groove, respectively.

[0014] Preferably, an arc-shaped groove is provided on the inner wall of the positioning seat, and the end curved surface of the locking pin is tightly fitted against the inner arc surface of the arc-shaped groove.

[0015] The design scheme proposed in this utility model has the following beneficial effects in application:

[0016] 1. When the frame of this solution moves the convex lens horizontally, the limiting sleeve slides stably on the limiting rod, avoiding the complexity and instability of the traditional external focusing structure. This internal focusing method not only simplifies the operation process, but also improves the focusing accuracy, so that the light can be focused more accurately to meet the lighting needs in different scenarios. At the same time, it avoids the dust pollution or mechanical wear problems that may be caused by the external focusing mechanism.

[0017] 2. As described in 1, a bevel gear transmission system is used to drive the focusing mechanism. By rotating the external knob, the drive bevel gear is driven, and then the linkage bevel gear is engaged to rotate the shaft. This design transforms manual operation into internal precision mechanical motion, which not only ensures the smoothness of focusing but also avoids damage that may be caused by direct contact with internal components. The fit between the threaded sleeve and the external thread of the shaft further improves the stability of the lens frame movement, ensuring that the convex lens always remains horizontal during focusing, effectively preventing light deviation or defocusing, and improving the overall illumination quality. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall front structure of this utility model;

[0019] Figure 2 This is a bottom view of the overall bottom of this utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the present invention;

[0021] Figure 4 This is a schematic diagram showing the disassembly and distribution of the alignment block and alignment seat of this utility model;

[0022] Figure 5 This is a schematic diagram of the position of the arc-shaped groove of this utility model.

[0023] In the diagram: 1. Lamp holder; 11. Terminal block; 12. Heat sink fins; 13. Housing; 14. Transparent glass plate; 15. Limiting rod; 16. Limiting sleeve; 17. Frame; 18. Convex lens; 19. Anti-detachment block; 110. LED bead; 2. Bearing 1; 21. Shaft; 22. External thread; 23. Threaded sleeve; 201. Bearing 2; 202. Knob; 203. Drive bevel gear; 204. Linkage bevel gear; 3. Alignment seat; 31. Alignment block; 32. Pin groove; 33. Locking pin; 34. Spring; 35. Arc groove. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Example 1

[0026] Reference Figures 1-5 An internally focused LED spotlight includes a lamp holder 1. A terminal block 11 is installed at the middle of the upper end of the lamp holder 1. Several heat dissipation fins 12 are fixedly covered on the upper end of the lamp holder 1. Several LED beads 110 are distributed and fixed on the side of the lamp holder 1 away from the terminal block 11. A housing 13 is installed on the side of the lamp holder 1 close to the LED beads 110. A light-transmitting glass plate 14 is embedded and fixed at the end of the housing 13. The terminal block 11 can ensure the connection between the lamp holder 1 and the external power supply. The heat dissipation fins 12 can play a heat dissipation role when the lamp holder 1 is working continuously. The LED beads 110 can provide sufficient brightness after being powered on. The housing 13 can prevent the light from being scattered from the surroundings when the light does not reach the light-transmitting glass plate 14.

[0027] A limiting rod 15 is fixedly installed on one side of the lamp holder 1. A limiting sleeve 16 is slidably fitted onto the surface of the limiting rod 15. An anti-detachment block 19 is fixedly installed at the end of the limiting rod 15 away from the lamp holder 1. A lens frame 17 is fixed to the outer ring wall of the limiting sleeve 16 by a bracket. A convex lens 18 is embedded in the inner side of the lens frame 17. The light can be focused through the convex lens 18. The limiting sleeve 16 slides on the surface of the limiting rod 15, so that the lens frame 17 can move with the convex lens 18, thereby satisfying the internal focusing operation.

[0028] Among them, a bearing 2 is fixedly installed on the surface of the lamp holder 1. A shaft 21 is installed on the inner ring wall of the bearing 2 with an interference fit. The surface of the shaft 21 is provided with an external thread 22. The shaft 21 can rotate stably based on the bearing 2, and the external thread 22 can move synchronously with the shaft 21.

[0029] The external thread 22 is threaded with a threaded sleeve 23. The outer ring wall of the threaded sleeve 23 is fixedly installed on the surface of the frame 17 through the bracket. The movement of the threaded sleeve 23 on the external thread 22, in conjunction with the limit sleeve 16 sliding at the limit rod 15, can ensure the stable horizontal movement of the frame 17.

[0030] A bearing 201 is fixedly installed through one side of the outer casing 13. A knob 202 is installed on the inner ring wall of the bearing 201 with an interference fit. A drive bevel gear 203 is fixedly installed at the end of the knob 202. The knob 202 can be rotated based on the bearing 201. The knob 202 can be directly operated by hand, thereby facilitating the rotation of the drive bevel gear 203.

[0031] The shaft 21 is fixedly sleeved with a linkage bevel gear 204. The surface of the linkage bevel gear 204 meshes with the surface of the drive bevel gear 203. The linkage bevel gear 204 can rotate with the shaft 21 and can ensure the stable rotation of the shaft 21 through the continuous meshing transmission of the drive bevel gear 203.

[0032] Alignment seats 3 are fixedly installed on both sides of the lamp holder 1 by brackets, and alignment blocks 31 are fixedly installed on both sides of the outer shell 13 by brackets. The surface of the alignment block 31 is slidably sleeved with the inside of the alignment seat 3. By inserting and docking the alignment block 31 with the alignment seat 3, the lamp holder 1 and the outer shell 13 can be quickly positioned and assembled.

[0033] The alignment block 31 has a pin groove 32 on its surface. A locking pin 33 is slidably sleeved inside the pin groove 32. The end of the locking pin 33 has a curved structure. A spring 34 is installed inside the pin groove 32. The two ends of the spring 34 are fixedly installed on the surface of the locking pin 33 and the inner wall of the pin groove 32, respectively. The spring 34 can ensure the stable extension and repositioning of the locking pin 33. The locking pin 33 can spring into the arc groove 35, thereby realizing the locking and fixing of the alignment seat 3 and the alignment block 31, thus ensuring the stable splicing of the lamp holder 1 and the outer shell 13.

[0034] The inner wall of the alignment seat 3 has an arc-shaped groove 35. The end curved surface of the locking pin 33 is tightly fitted against the inner arc surface of the arc-shaped groove 35. When the alignment seat 3 and the alignment block 31 need to be installed, the alignment block 31 and the alignment seat 3 are inserted. At this time, the port of the alignment seat 3 will squeeze the end curved surface of the locking pin 33, causing its compression spring 34 to enter the interior of the pin groove 32, so that the alignment block 31 and the alignment seat 3 can be fully inserted and installed. When the position of the locking pin 33 is aligned with the inner arc surface of the arc-shaped groove 35... When the positions are aligned, the spring 34's reset effect allows the locking pin 33 to spring into the arc groove 35, thus enabling the installation of the alignment block 31 and the alignment seat 3. When it is necessary to separate the alignment block 31 and the alignment seat 3, pull the lamp holder 1 or the outer shell 13, causing the end curved surface of the locking pin 33 to slide and press against the inner arc surface of the arc groove 35, allowing the locking pin 33 to recompress the spring 34 and enter the pin groove 32, thus enabling the separation of the alignment block 31 and the alignment seat 3.

[0035] In this design, the convex lens 18 is embedded in the lens frame 17. The lens frame 17 is fixedly connected to the limiting sleeve 16 via a bracket. The limiting sleeve 16 is slidably fitted onto the limiting rod 15, which is fixed to one side of the lamp holder 1. When the focus needs to be adjusted, the user rotates the knob 202. The knob 202 drives the drive bevel gear 203 to rotate via the bearing 201. The drive bevel gear 203 meshes with the linkage bevel gear 204, thereby driving the shaft 21 to rotate. The shaft 21 is stably supported by the bearing 2. The external thread 22 engages with the threaded sleeve 23, which is fixed to the lens frame 17 via a bracket. Therefore, the rotation of the shaft 21 is converted into the linear displacement of the threaded sleeve 23, which drives the lens frame 17 and the convex lens 18 to move horizontally along the limiting rod 15. The anti-disengagement block 19 at the end of the limiting rod 15 prevents the limiting sleeve 16 from disengaging, ensuring the stability of the focusing process. By precisely adjusting the distance between the convex lens 18 and the LED lamp bead 110, the focusing effect of the light can be changed, achieving a seamless switch from focused light to floodlight.

[0036] The rapid assembly of the lamp holder 1 and the housing 13 relies on the mating structure of the alignment block 31 and the alignment seat 3. The alignment block 31 is fixed on both sides of the housing 13, and the alignment seat 3 is fixed on both sides of the lamp holder 1. The two are initially positioned by an insert-type sliding sleeve. The pin groove 32 on the surface of the alignment block 31 is provided with a spring 34 and a locking pin 33. The end of the locking pin 33 is designed with a curved surface. When the alignment block 31 is inserted into the alignment seat 3, the port of the alignment seat 3 presses against the curved end of the locking pin 33, forcing the locking pin 33 to compress the spring 34 and retract into the pin groove 32. After the alignment block 31 is fully inserted, the locking pin 33 aligns with the arc groove 35 on the inner wall of the alignment seat 3. The restoring force of the spring 34 pops the locking pin 33 out and locks it into the arc groove 35, completing the mechanical locking. When disassembling, the external force pulls the lamp holder 1 or the outer shell 13, and the curved end of the locking pin 33 slides relative to the inner arc surface of the arc groove 35. The spring 34 is compressed again to make it disengage from the arc groove 35, and the alignment block 31 and the alignment seat 3 can be separated. The lamp body structure can be quickly disassembled and assembled without tools, which is convenient for maintenance or replacement of internal components.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An internally focused LED spotlight, comprising a lamp holder (1), characterized in that: A terminal block (11) is installed at the middle of the upper end of the lamp holder (1). Several heat dissipation fins (12) are fixedly covered on the upper end of the lamp holder (1). Several LED beads (110) are distributed and fixed on the side of the lamp holder (1) away from the terminal block (11). A housing (13) is installed on the side of the lamp holder (1) close to the LED beads (110). A light-transmitting glass plate (14) is embedded and fixed at the end of the housing (13). A limiting rod (15) is fixedly installed on one side of the lamp holder (1). A limiting sleeve (16) is slidably sleeved on the surface of the limiting rod (15). An anti-detachment block (19) is fixedly installed at the end of the limiting rod (15) away from the lamp holder (1). A mirror frame (17) is fixed on the outer ring wall of the limiting sleeve (16) by a bracket. A convex lens (18) is embedded in the inner side of the mirror frame (17).

2. The LED spotlight with internal focusing according to claim 1, characterized in that: The surface of the lamp holder (1) is also fixedly mounted with a bearing (2), and a shaft (21) is installed on the inner ring wall of the bearing (2) with an interference fit. The surface of the shaft (21) is provided with an external thread (22).

3. The LED spotlight with internal focusing according to claim 2, characterized in that: The external thread (22) is threaded with a threaded sleeve (23), and the outer ring wall of the threaded sleeve (23) is fixedly installed on the surface of the frame (17) by a bracket.

4. The LED spotlight with internal focusing according to claim 3, characterized in that: A bearing 2 (201) is fixed through one side of the outer shell (13). A knob (202) is installed on the inner ring wall of the bearing 2 (201) with an interference fit. A drive bevel gear (203) is fixedly installed at the end of the knob (202).

5. The LED spotlight with internal focusing according to claim 4, characterized in that: The shaft (21) is fixedly sleeved with a linkage bevel gear (204), and the surface of the linkage bevel gear (204) meshes with the surface of the drive bevel gear (203).

6. The LED spotlight with internal focusing according to claim 5, characterized in that: Alignment seats (3) are fixedly installed on both sides of the lamp holder (1) by brackets. Alignment blocks (31) are fixedly installed on both sides of the outer shell (13) by brackets. The surface of the alignment block (31) is slidably sleeved with the inside of the alignment seat (3).

7. An internally focused LED spotlight according to claim 6, characterized in that: The surface of the alignment block (31) is provided with a pin groove (32), and a locking pin (33) is slidably sleeved inside the pin groove (32). The end of the locking pin (33) is a curved structure, and a spring (34) is provided inside the pin groove (32). The two ends of the spring (34) are fixedly installed on the surface of the locking pin (33) and the inner wall of the pin groove (32), respectively.

8. The LED spotlight with internal focusing according to claim 7, characterized in that: An arc-shaped groove (35) is provided on the inner wall of the positioning seat (3), and the end curved surface of the locking pin (33) is tightly fitted to the inner arc surface of the arc-shaped groove (35).

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