Engineering style down lamp

By designing a detachable and installable downlight body and suspension plate structure, combined with a telescopic rod and locking structure, the problem of fixing the downlight at both ends in narrow spaces is solved, improving dustproof and heat dissipation effects, while providing multi-dimensional lighting direction adjustment.

CN223840261UActive Publication Date: 2026-01-27HANGZHOU HUNTER ELECTRIC CO LTD
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Patent Information

Application Number
CN202423118917.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-17
Publication Date
2026-01-27
Estimated Expiration
2034-12-17

AI Technical Summary

Technical Problem

Existing downlight installation methods cannot meet the requirements of fixing both ends in narrow spaces, and they are prone to dust accumulation and poor heat dissipation.

Method used

An engineering-grade downlight was designed, featuring a detachable downlight body and suspension plate structure. Combined with a telescopic rod, mounting plate, and locking structure, it achieves fixed installation at both ends. The design of a ring-shaped decorative panel and suspension block enhances dust prevention. Meanwhile, the heat dissipation structure and adjustable lighting direction improve heat dissipation and lighting adjustment.

Benefits of technology

It enables reliable installation of downlights in spaces of different sizes, has good dustproof performance, multi-dimensional adjustable lighting direction, maintains the appearance after installation, and has good heat dissipation performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to an engineering type down lamp which comprises a down lamp body and a hanging plate provided with a down lamp mounting hole, the down lamp body is detachably mounted in the down lamp mounting hole in a downward lighting mode, the two ends of the hanging plate are provided with telescopic rods which extend in the horizontal direction of a mounting plate with the two ends provided with bolt holes, and the mounting plate is perpendicular to the telescopic rods. The telescopic rod comprises a first rod body and a second rod body, a sliding groove extending in the extending direction of the second rod body is formed in the surface of one side of the second rod body, and the first rod body is arranged in the sliding groove in a penetrating mode; one mounting plate is connected to one end of the first rod body, the other mounting plate is connected to one end of the second rod body, a junction box and a box body of a heat dissipation structure covering the down lamp body are arranged on the hanging plate, and the junction box is used for being connected with a power line so as to supply power to the down lamp body. The dustproof down lamp has the advantages of being capable of being suitable for installation in spaces with different sizes and good in dustproof effect, and the problem that an existing down lamp cannot be installed in different installation spaces is solved.
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Description

Technical Field

[0001] This utility model relates to the field of lighting technology, and in particular to an engineering downlight. Background Technology

[0002] Downlights are a common type of illumination device, installed in areas requiring lighting. They are typically installed using a cantilevered design with one fixed side, and there are no suitable installation structures for fixing them at both ends in narrow spaces. Summary of the Invention

[0003] This utility model provides a dustproof downlight that can be installed in spaces of different sizes, solving the problem that existing downlights cannot meet the installation requirements of different spaces.

[0004] The above technical problems are solved by the following technical solution: an engineering downlight, including a downlight body and a hanging plate with downlight mounting holes. The downlight body is detachably installed in the downlight mounting holes in a downward-facing manner. The hanging plate has horizontally extending telescopic rods at both ends, and mounting plates with bolt holes at both ends of the telescopic rods. The mounting plates are perpendicular to the telescopic rods. The telescopic rods include a first rod body and a second rod body. A groove extending along the extension direction of the second rod body is provided on one side surface, and the first rod body passes through the groove. Two mounting plates are provided, one connected to one end of the first rod body and the other connected to one end of the second rod body. The hanging plate has a junction box and a housing covering the downlight body. The housing is a heat dissipation structure. The junction box is used to connect a power cord to provide power to the downlight body. In use, the downlight is installed by nailing it through the bolt holes to the vertical wall of the downlight section. It can adapt to installation in spaces of different sizes and is reliable. The downlight body is not prone to dust accumulation and maintains good heat dissipation.

[0005] Preferably, the downlight body has an annular decorative panel that covers the downlight mounting hole. The rear surface of the annular decorative panel has several hanging blocks with hanging steps distributed circumferentially along the panel. The hanging plate has several hanging holes distributed circumferentially along the downlight mounting hole. Each hanging hole has a widened section that allows the hanging blocks to pass through. The hanging blocks are inserted into the hanging holes one by one, and are suspended in the hanging holes by hooking onto the upper surface of the hanging plate through the hanging steps. In use, the downlight body is passed from bottom to top through the downlight mounting hole until the hanging steps are above the annular decorative panel, with the hanging blocks aligned with the widened sections. Then, the downlight body is rotated until the hanging blocks are in the hanging holes, causing the downlight body to move downwards and be suspended from the upper surface of the annular decorative panel by the hanging steps, thus connecting the downlight body to the annular decorative panel.

[0006] Preferably, the suspension block includes a base section integrally formed with the annular decorative panel and a tail section detachably connected to the base section. The upper end face of the base section has a threaded hole, and the lower end of the tail section has a threaded head. The threaded head is threaded into the threaded hole of the base section, forming the suspension step between the tail section and the base section. Leveling of the downlight body can be achieved by rotating the tail section to the depth it is screwed into the base section.

[0007] Preferably, the circumferential surface of the final section is provided with several drag-increasing vertical protrusions distributed along the circumference of the final section. This prevents slippage when the final section is rotated.

[0008] Preferably, the downlight body includes a locking structure, a lower reflector, and an LED light hinged to the rear end of the lower reflector via a horizontal hinge axis. The LED light includes an LED light source board, a heat sink for dissipating heat from the LED light source board, and an upper reflector fitted onto the LED light source board and connected to the lower end of the heat sink. The upper reflector is abutted against the rear end of the lower reflector. The upper end of the lower reflector has a notch to prevent interference with the rotation of the LED light around the horizontal hinge axis. During the rotation of the LED light, the light emitted by the LED light illuminates the lower reflector. The locking structure is used to maintain the LED light at a set angle when it rotates to that angle. In use, the LED light is rotated around the horizontal hinge axis to change the lighting direction. Existing downlights require the entire downlight to be tilted when changing the lighting direction. This technical solution allows for adjustable lighting direction while keeping the exposed decorative end of the downlight unchanged.

[0009] Preferably, the system also includes a light shield, with the lower reflector connected to the lower end of the light shield and the upper reflector passing through the upper end of the light shield. The lower end of the heat sink is connected to a connecting lug, which is rotatably connected to the light shield via the horizontal hinge. The upper end of the light shield has a notch to prevent interference with the rotation of the LED lamp around the horizontal hinge. This design more reliably prevents light leakage.

[0010] Preferably, the lower end of the heat sink is connected to a heat dissipation groove fitted onto the side of the light shield away from the notch in the light shield, and the connecting lug is connected to the heat sink through the heat dissipation groove. This improves the heat dissipation effect.

[0011] Preferably, the locking structure includes a braking surface disposed on the connecting lug, a brake bolt threaded onto the sunshade for pressing against the braking surface for braking, and a brake spring for driving the connecting lug to rotate in the direction of pressing against the brake bolt. When angle adjustment is required, loosen the brake bolt and rotate the LED light to the desired position. Then rotate the brake bolt to press against the braking surface for braking, and the braking is maintained by the action of the brake spring.

[0012] Preferably, the lower end of the sunshade is provided with several hanging holes, and the outer surface of the lower reflector is provided with several hanging hooks. The hanging hooks are correspondingly engaged with the hanging holes to suspend the lower reflector inside the sunshade. This facilitates the connection between the lower reflector and the sunshade.

[0013] Preferably, the downlight body further includes a supporting sleeve, the lower reflector being rotatably connected inside the supporting sleeve, and the supporting sleeve being connected to the suspension plate. This allows the lighting direction to be adjusted 360°.

[0014] Preferably, the downlight body is provided with an annular decorative panel that covers the downlight mounting hole. The upper surface of the annular decorative panel is provided with a limiting sleeve. The annular decorative panel extends into the limiting sleeve to form a hanging flange. The outer surface of the support sleeve is provided with an anti-rotation block. The upper surface of the hanging flange is provided with an anti-rotation notch. The anti-rotation block passes through the anti-rotation notch and is suspended on the hanging flange.

[0015] Preferably, the upper surface of the suspension flange is provided with a plurality of reinforcing strips distributed circumferentially along the suspension flange. The reinforcing strips extend circumferentially along the suspension flange, and the anti-rotation notch is formed between adjacent reinforcing strips. The reinforcing strips are connected together with the limiting sleeve, and the limiting sleeve, the annular decorative panel and the reinforcing strips are integrally formed together. The structure has good strength.

[0016] Preferably, the upper surface of the reinforcing strip is provided with a plurality of reinforcing blocks, the reinforcing blocks being connected together with the limiting sleeve, and the reinforcing blocks, reinforcing strip, and limiting sleeve being integrally formed together. This results in good structural strength.

[0017] Preferably, between the two reinforcing strip ends located at both ends of the anti-rotation notch, one reinforcing strip end is flush with the same reinforcing block, and the other reinforcing strip end has a guide slope facing towards the anti-rotation notch defect. This facilitates the assembly of the support sleeve into the limiting sleeve to the set position.

[0018] Preferably, the second rod is a sheet-like structure with its thickness horizontal. The upper and lower edges of the second rod are bent away from the suspension plate to form two grooves, and the upper and lower edges of the first rod pass through these two grooves. This provides a specific telescopic connection solution for the telescopic rod, making it less prone to bending even on thinner first and second rods.

[0019] Preferably, the first rod is a sheet-like structure, with a curved wall structure arched in the middle of the first rod in the vertical direction, moving away from the second rod. This improves structural strength.

[0020] Preferably, the mounting plate has a folded edge that bends away from the telescopic rod, and the folded edge has a bolt mounting notch. This allows the present invention to be installed on an object by being supported by the folded edge of the mounting plate, making it more adaptable to different installation environments.

[0021] Preferably, the folded edge is perpendicular to the mounting plate.

[0022] Preferably, the mounting plate has a recess on the surface away from the telescopic rod, and the bolt holes are located on the bottom wall of the recess. This improves the ease of installing bolts through the bolt holes.

[0023] Preferably, the bottom wall of the recess protrudes from the surface of the mounting plate on the side of the telescopic rod. This improves structural strength.

[0024] Preferably, a clamping piece is also included. The suspension plate has a flanged portion with a threaded hole. A clamping bolt passes through the clamping piece and is threaded into the threaded hole. The clamping piece, in conjunction with the flanged portion of the suspension plate, clamps the telescopic rod, thereby fixing the telescopic rod to the suspension plate. In use, after adjusting the position of the suspension plate to the desired position, the clamping bolt is tightened, thus fixing the suspension plate to the telescopic rod. This achieves adjustable position of the suspension plate.

[0025] Preferably, the clamping plate has a hook at one end in the vertical direction and a pin at the other end. The suspension plate has a suspension hole, and the folded edge of the suspension plate has a pin through hole. The hook is hooked into the suspension hole, and the pin passes through the pin through hole. This improves the reliability of fixing.

[0026] Preferably, the folded edge of the suspension plate is located above the suspension plate. This provides good load-bearing capacity.

[0027] This utility model has the following advantages: it can adapt to the installation of spaces of different sizes and dimensions; it is fixed at both ends during installation, ensuring reliable connection; it has good dustproof effect; the lighting direction is multi-dimensionally adjustable; when adjusting the lighting direction, the front end of the lamp remains stationary, maintaining its appearance and position unchanged. Attached Figure Description

[0028] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0029] Figure 2 This is a partial perspective view of the present invention;

[0030] Figure 3 for Figure 2 A magnified view of a portion of point A;

[0031] Figure 4 for Figure 3A magnified view of a portion of point B;

[0032] Figure 5 This is a schematic diagram of the present invention after the box body has been removed;

[0033] Figure 6 for Figure 5 A magnified view of a portion at point C;

[0034] Figure 7 This is a three-dimensional structural diagram of the downlight body;

[0035] Figure 8 for Figure 7 A magnified view of a portion at point D;

[0036] Figure 9 A schematic diagram showing the downlight after the circular decorative panel has been removed;

[0037] Figure 10 This is a schematic diagram of an LED light;

[0038] Figure 11 A schematic diagram of the ring-shaped decorative panel and the supporting outer casing;

[0039] Figure 12 for Figure 11 A magnified view of a portion of point E;

[0040] Figure 13 This is a schematic diagram of a ring-shaped decorative mask.

[0041] In the diagram: 1. Suspension plate; 2. Telescopic rod; 3. Bolt hole; 4. Mounting plate; 5. Mounting plate flange; 6. Bolt mounting notch; 7. Bottom wall of the recess; 8. First rod body; 9. Second rod body; 10. Slide groove; 11. Middle part of the first rod body (vertical direction); 12. Clamping piece; 13. Suspension plate flange; 14. Clamping bolt; 15. Suspension hook; 16. Pin; 17. Suspension hole; 18. Nail; 21. Downlight body; 22. Downlight mounting hole; 23. Junction box; 24. Housing; 25. Circular decorative panel; 27. Suspension block; 28. Suspension hole; 29. ​​Widening section; 30. Base section; 31. End section; 32. Threaded base section. 32. Hole; 33. Resistance-increasing vertical protrusion; 34. Support jacket; 35. Lower reflector; 36. Sunshade; 37. Heat sink; 38. Upper reflector; 39. Light-transmitting panel; 40. Limiting sleeve; 41. Suspension flange; 42. Anti-rotation block; 42. Anti-rotation notch; 43. Reinforcing strip; 44. Reinforcing block; 45. One end of reinforcing strip; 46. Guide slope; 47. Horizontal hinge shaft; 48. Reflector clearance notch; 49. Heat dissipation groove; 50. Connecting ear; 51. Sunshade clearance notch; 52. Braking surface; 53. Braking bolt; 54. Braking spring; 55. Suspension latch hole; 56. Suspension hook; 57. Locking structure. Detailed Implementation

[0042] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0043] See Figures 1 to 13 A type of downlight for engineering applications includes a downlight body 21 and a hanging plate 1 with a downlight mounting hole 22. The downlight body is detachably installed in the downlight mounting hole in a downward-facing manner. The hanging plate is provided with a junction box 23 and a housing 24 connected to the downlight body, the housing being a heat dissipation structure, and the junction box being used to connect a power cord to provide power to the downlight body.

[0044] The suspension plate has horizontally extending telescopic rods 2 at both ends. Each end of the telescopic rod has a mounting plate 4 with bolt holes 3, perpendicular to the telescopic rod. The mounting plate has a bent edge 5 that bends away from the telescopic rod, and this bent edge has a bolt mounting notch 6. The bent edge is perpendicular to the mounting plate. A recess is provided on the surface of the mounting plate away from the telescopic rod, and bolt holes are located on the bottom wall 7 of the recess. The bottom wall of the recess protrudes from the surface of the mounting plate on the side of the telescopic rod. The telescopic rod includes a first rod body 8 and a second rod body 9. A groove 10 extending along the extension direction of the second rod body is provided on one side surface of the second rod body, and the first rod body passes through the groove. Two mounting plates are provided, one connected to one end of the first rod body and the other connected to one end of the second rod body. In use, the downlight is connected to the suspension plate and fixed to the vertical wall of the installation location by nails 18 or bolts passing through the bolt holes, thus achieving the installation of the downlight. The telescopic rod design allows this invention to be used in spaces of varying widths.

[0045] The second rod is a sheet-like structure with its thickness horizontal. Both its upper and lower edges are bent away from the suspension plate to form two grooves. The upper and lower edges of the first rod pass through these two grooves. The first rod is also a sheet-like structure, with a curved wall structure arched in the middle 11 of its vertical direction away from the second rod. The system also includes a clamping piece 12. The suspension plate has a flange 13 with threaded holes. A clamping bolt 14 passes through the clamping piece and is threaded into the threaded holes. The clamping piece, in conjunction with the flange of the suspension plate, clamps the telescopic rod, thus fixing it to the suspension plate. In use, after adjusting the position of the suspension plate to the desired position, the clamping bolt is tightened to fix the suspension plate to the telescopic rod. This allows for adjustable suspension plate position. The flange of the suspension plate is located above the suspension plate. The clamping plate has a hanging hook 15 at one end in the vertical direction and a pin 16 at the other end. The hanging plate has a hanging hole 17, and the folded edge of the hanging plate has a pin through hole. The hanging hook is hooked into the hanging hole, and the pin passes through the pin through hole.

[0046] The downlight body has an annular decorative panel 25 that covers the downlight mounting hole. On the rear surface of the annular decorative panel are several hanging blocks 27 with hanging steps distributed circumferentially along the panel. The hanging plate has several hanging holes 28 distributed circumferentially along the downlight mounting hole. Each hanging hole has an extended section 29 through which the hanging blocks can pass. The hanging blocks are inserted into the corresponding hanging holes and suspended within the hanging holes by hooking onto the upper surface of the hanging plate via the hanging steps. In use, the downlight body is passed from bottom to top through the downlight mounting hole until the hanging steps are above the annular decorative panel, with the hanging blocks aligned with the extended sections. Then, the downlight body is rotated until the hanging blocks are within the hanging holes, causing the downlight body to move downwards and be suspended from the upper surface of the hanging plate via the hanging steps, thus connecting the downlight body to the annular decorative panel.

[0047] The suspension block includes a base section 30 integrally formed with the annular decorative panel and a detachable end section 31 connected to the base section. The upper end face of the base section is provided with a base section threaded hole 32, and the lower end of the end section is provided with an end section threaded head. The end section threaded head is threaded into the base section threaded hole, forming a suspension step between the end section and the base section. The circumferential surface of the end section is provided with a plurality of resistance-increasing vertical protrusions 33 distributed along the circumference of the end section.

[0048] The downlight body includes a supporting jacket 34, a lower reflector 35 rotatably supported on a supporting step inside the supporting jacket, a light shield 36 fitted onto the rear end of the lower reflector, and an LED light connected to the rear end of the lower reflector. The LED light includes an LED light source board, a heat sink 37 for dissipating heat from the LED light source board, an upper reflector 38 fitted onto the LED light source board and connected to the lower end of the heat sink, and a light-transmitting panel 39 located at the front end of the upper reflector. The upper reflector is abutted to the rear end of the lower reflector. The upper surface of the annular decorative panel is provided with a limiting sleeve 40, and the annular decorative panel extends into the limiting sleeve to form a hanging flange 41. The outer surface of the supporting jacket is provided with an anti-rotation block 42, and the upper surface of the hanging flange is provided with an anti-rotation notch 42. The anti-rotation block passes through the anti-rotation notch and is suspended on the hanging flange. The upper surface of the suspension flange is provided with several reinforcing strips 43 distributed circumferentially along the suspension flange. The reinforcing strips extend circumferentially along the suspension flange, and anti-rotation notches are formed between adjacent reinforcing strips. The reinforcing strips are connected to the limiting sleeve, and the limiting sleeve, the annular decorative panel, and the reinforcing strips are integrally formed together. The upper surface of the reinforcing strips is provided with several reinforcing blocks 44, and the reinforcing blocks are connected to the limiting sleeve. The reinforcing blocks, reinforcing strips, and limiting sleeves are integrally formed together. Between the two reinforcing strip ends located at both ends of the anti-rotation notch, one reinforcing strip end 45 is flush with a reinforcing block, and the other reinforcing strip end is provided with a guide slope 46 facing the anti-rotation notch defect.

[0049] The downlight body also includes a locking structure 57. The LED light is hinged to the rear end of the lower reflector via a horizontal hinge shaft 47 (specifically a bolt), with the hinge shaft resting on the light shield to achieve the hinge connection with the lower reflector. The upper end of the lower reflector has a reflector clearance notch 48 to prevent interference with the LED light's rotation around the horizontal hinge shaft. During LED light rotation, the light emitted by the LED light illuminates the lower reflector. The locking structure is used to maintain the LED light at a set angle when it rotates to that angle. In use, the LED light is rotated around the horizontal hinge shaft to change the lighting direction. Existing downlights require the entire downlight to be tilted when changing the lighting direction; this technical solution allows for adjustable lighting direction while keeping the exposed decorative end of the downlight unchanged.

[0050] The upper end of the lower reflector is connected to the lower end of the sunshade, and the upper reflector passes through the upper end of the sunshade. The lower end of the heat sink is connected to a heat dissipation groove 49 fitted on the side of the sunshade away from the sunshade clearance notch. The lower end of the heat sink is connected to a connecting ear 50, which is rotatably connected to the sunshade via a horizontal hinge. The upper end of the sunshade is provided with a sunshade clearance notch 51 to prevent the sunshade from interfering with the rotation of the LED light around the horizontal hinge. The locking structure includes a braking surface 52 provided on the connecting ear, a brake bolt 53 threaded to the sunshade for pressing against the braking surface for braking, and a brake spring 54 driving the connecting ear to rotate in the direction of pressing against the brake bolt. When the angle needs to be adjusted, the brake bolt is loosened, and the LED light is rotated to the desired position. Then the brake bolt is rotated to press against the braking surface for braking, and the braking is maintained by the action of the brake spring. The lower end of the sunshade is provided with several hanging holes 55, and the outer surface of the lower reflector is provided with several hanging hooks 56. The hanging hooks are locked in the hanging holes one by one to suspend the lower reflector inside the sunshade.

[0051] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0052] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A downlight for engineering projects, comprising a downlight body, characterized in that, It also includes a suspension plate with mounting holes for downlights. The downlight body is detachably installed in the mounting holes in a downward-facing manner. The suspension plate has telescopic rods extending horizontally at both ends. The telescopic rods have mounting plates with bolt holes at both ends. The mounting plates are perpendicular to the telescopic rods. The telescopic rods include a first rod body and a second rod body. A groove extending along the extension direction of the second rod body is provided on one side surface. The first rod body passes through the groove. There are two mounting plates, one connected to one end of the first rod body and the other connected to one end of the second rod body. The suspension plate has a junction box and a housing that covers the downlight body. The housing is a heat dissipation structure. The junction box is used to connect a power cord to provide power to the downlight body.

2. The downlight for engineering projects according to claim 1, characterized in that, The downlight body includes a locking structure, a lower reflector, and an LED light hinged to the rear end of the lower reflector via a horizontal hinge shaft. The LED light includes an LED light source board, a heat sink for dissipating heat from the LED light source board, and an upper reflector fitted onto the LED light source board and connected to the lower end of the heat sink. The upper reflector is connected to the rear end of the lower reflector. The upper end of the lower reflector is provided with a reflector clearance notch to prevent the lower reflector from interfering with the rotation of the LED light around the horizontal hinge shaft. During the rotation of the LED light, the light emitted by the LED light shines into the lower reflector. The locking structure is used to maintain the LED light at the set angle when it rotates to the set angle.

3. The downlight for engineering projects according to claim 2, characterized in that, It also includes a light shield, the lower reflector is connected to the lower end of the light shield, the upper reflector passes through the upper end of the light shield, the lower end of the heat sink is connected to a connecting ear, the connecting ear is rotatably connected to the light shield through the horizontal hinge, and the upper end of the light shield is provided with a light shield portion avoidance notch to prevent the light shield from interfering with the rotation of the LED lamp around the horizontal hinge.

4. The downlight for engineering projects according to claim 3, characterized in that, The lower end of the radiator is connected to a heat dissipation groove fitted on the side of the light shield away from the gap in the light shield, and the connecting ear is connected to the radiator through the heat dissipation groove.

5. A downlight for engineering projects according to claim 3 or 4, characterized in that, The locking structure includes a brake surface disposed on the connecting ear, a brake bolt threaded onto the sunshade for braking by pressing against the brake surface, and a brake spring that drives the connecting ear to rotate in the direction of pressing against the brake bolt.

6. A downlight for engineering projects according to claim 3 or 4, characterized in that, The lower end of the sunshade is provided with several hanging holes, and the outer surface of the lower reflector is provided with several hanging hooks. The hanging hooks are locked in the hanging holes one by one to suspend the lower reflector inside the sunshade.

7. A downlight for engineering projects according to claim 2, 3, or 4, characterized in that, The downlight body also includes a support jacket, the lower reflector is rotatably connected inside the support jacket, and the support jacket is connected to the suspension plate.

8. A downlight for engineering projects according to claim 7, characterized in that, The downlight body is provided with an annular decorative panel that covers the downlight mounting hole. The upper surface of the annular decorative panel is provided with a limiting sleeve. The annular decorative panel extends into the limiting sleeve to form a hanging flange. The outer surface of the supporting sleeve is provided with an anti-rotation block. The upper surface of the hanging flange is provided with an anti-rotation notch. The anti-rotation block passes through the anti-rotation notch and is suspended on the hanging flange.