Down lamp structure
By designing a mating groove and a locking block in the downlight structure, the problem of unstable locking between the lamp housing and lamp cover is solved, achieving different effects during assembly and disassembly, and improving the reliability of the locking mechanism.
Patent Information
- Application Number
- CN202520017315.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-03
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-01-03
AI Technical Summary
In existing downlight structures, the connection between the lamp housing and the lamp cover is not stable and reliable enough. The same force is required for assembly and disassembly, making them prone to falling off.
Design a downlight structure in which the upper part of the lampshade is connected to the lower part of the lamp housing and the mounting cavity is matched. Through the structural design of the docking groove and the locking block, the locking block can be stably locked after the lamp housing and lampshade are rotated. The rotation is restricted by the cooperation of the stop bar and the clearance opening.
The improved snap-fit reliability of the lamp housing and lamp shade allows for different forces required for assembly and disassembly, ensuring a more stable connection between the lamp housing and lamp shade and preventing them from falling off.
Smart Images
Figure CN223768782U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of downlight technology, and in particular to a downlight structure. Background Technology
[0002] A downlight is a type of recessed lighting fixture that shines downwards into the ceiling. It has a screw-in lamp holder that can directly mount incandescent or energy-saving bulbs. Downlights are direct light sources, projecting all light downwards. Different reflectors, lenses, blinds, and bulbs can be used to achieve various lighting effects. They are directional lighting fixtures, meaning only the area opposite the light source receives light. The beam angle is focused, resulting in concentrated light and strong contrast between light and shadow.
[0003] Downlight housings typically consist of an upper housing and a lower shade. In existing structures, the housing and shade are usually connected by a snap-fit mechanism. However, due to design flaws, the same force is required to assemble and disassemble the housing and shade, making the snap-fit connection unstable and unreliable, and the two parts are prone to detachment under stress.
[0004] Therefore, how to design a downlight structure with a simpler structure that allows for different forces required to assemble and disassemble the lamp housing and lampshade, thereby improving the reliability of the snap-fit connection, has become a technical problem that needs to be solved by those skilled in the art. Utility Model Content
[0005] In view of the above-mentioned defects of the prior art, the technical problem to be solved by this utility model is how to design a downlight structure with a simpler structural design, so that the force required for assembling and disassembling the lamp housing and lamp shade is different, thereby improving the reliability of the snap-fit.
[0006] To achieve the above objectives, this utility model provides a downlight structure, including a downlight body, which includes an upper lamp housing and a lower lamp shade. The upper end of the lamp shade has a cylindrical connecting tube that can extend into and fit into a mounting cavity at the lower end of the lamp housing. Two or more connecting grooves are evenly provided on the outer peripheral wall of the connecting tube along the circumferential direction. The connecting grooves are elongated and arranged along the circumference of the connecting tube. A clearance opening is provided on the upper side wall of one end of the connecting groove, extending upward through the upper surface of the connecting tube. A baffle is provided at the center of the bottom surface of the connecting groove. An inwardly protruding locking block is provided on the inner peripheral wall of the mounting cavity, corresponding to the clearance opening. After the connecting tube is inserted into the mounting cavity, the locking block can be inserted into the connecting groove through the clearance opening. After the lamp housing and lamp shade are rotated by an angle, the locking block can fit into the end of the connecting groove away from the clearance opening, and the locking block can abut against the surface of the baffle to restrict the rotation between the lamp housing and lamp shade.
[0007] In this downlight structure, during assembly, the mating cylinder at the upper end of the lampshade is inserted into the mounting cavity at the lower end of the lamp housing. The corresponding locking block passes through the upper end of the clearance opening and enters the mating groove. Then, by rotating the lamp housing and lampshade at a certain angle, the locking block can pass over the stop bar and engage with the end of the mating groove furthest from the clearance opening. The locking block abuts against one side of the stop bar, thus restricting rotation between the lamp housing and lampshade. This designed stop bar structure makes the engagement of the lamp housing and lampshade more stable and reliable, better preventing them from falling off.
[0008] As an optimization, the docking grooves are two that are evenly arranged along the circumference.
[0009] In this way, the docking slots are designed in two parts, making the arrangement simpler and more reasonable.
[0010] As an optimization, two thickened portions are symmetrically arranged on the inner circumferential surface of the docking cylinder along the diameter direction, and the docking groove is provided on the outer circumferential surface of the docking cylinder at a position corresponding to the thickened portions.
[0011] In this way, by thickening the inner circumference of the docking cylinder to form a thickened part, and then setting the docking groove at the position corresponding to the thickened part on the outer circumference of the docking cylinder, the structural arrangement is more reasonable, which allows for a larger depth dimension of the docking groove and improves the reliability of the snap-fit.
[0012] As an optimization, the lamp housing is designed as a rectangular box structure with an open bottom; and at least part of the lower middle part of the four inner peripheral walls of the lamp housing is an arc-shaped mating surface, and the mounting cavity is formed between the four arc-shaped mating surfaces; the locking block is provided on one of the sets of opposite arc-shaped mating surfaces.
[0013] In this way, the structural design of the lamp housing is simpler and more reasonable, and it is easier to form a locking block.
[0014] As an optimization, the side of the stop bar adjacent to the clearance opening is provided with a chamfered structure to form a guide slope.
[0015] This design simplifies the structure of the retaining strip, making assembly easier and requiring less force to assemble than to disassemble.
[0016] As an optimization, chamfers are provided on the front and rear sides of the card block, and the size of the chamfer on the front side of the card block is larger than the size of the chamfer on the rear side of the card block.
[0017] In this way, the structural design of the card block is more reasonable, making it easier to assemble and disassemble; and it can make the force required for assembly less than the force required for disassembly.
[0018] As an optimization, the position on the upper side wall of the docking groove opposite to the clearance opening is provided with a rounded corner.
[0019] This makes the structural design simpler and more reasonable, and also provides guidance during assembly.
[0020] As an optimization, the upper sidewall of the docking groove is set at an angle.
[0021] This makes the structural design more reasonable, allowing for a tighter connection between the lamp housing and the lamp shade after assembly.
[0022] In this specific embodiment, a U-shaped cutting opening is provided on the bottom surface of the docking groove at the end away from the clearance opening, and a clearance block is formed inside the cutting opening.
[0023] In this way, by designing a U-shaped cutout, a relief block is formed inside the cutout. After the block is engaged with the mating groove, the relief block can deform inward to allow the block to better fit into the mating groove, thereby improving the stability and reliability of the engagement.
[0024] In summary, the above-mentioned downlight structure has the advantages of simpler structural design, different forces required for assembling and disassembling the lamp housing and lamp cover, and improved snap-fit reliability. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the downlight structure in a specific embodiment of this utility model.
[0026] Figure 2 yes Figure 1 A schematic diagram of the structure after omitting the lamp housing.
[0027] Figure 3 yes Figure 2 A magnified view of position A in the diagram.
[0028] Figure 4 yes Figure 2 A schematic diagram of the structure after rotation by one angle.
[0029] Figure 5 yes Figure 4 A magnified view of position B in the diagram.
[0030] Figure 6 yes Figure 1 The front view.
[0031] Figure 7 yes Figure 6 A schematic diagram of the AA section.
[0032] Figure 8 yes Figure 7 A magnified view of position C in the diagram. Detailed Implementation
[0033] The present invention will be further described below with reference to the accompanying drawings and embodiments. It should be noted that in the description of the present invention, terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used only for the convenience of describing the present invention and for 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 manner. Therefore, they should not be construed as limitations on the present invention. Terms such as "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0034] like Figures 1 to 8 As shown, a downlight structure includes a downlight body, which includes an upper lamp housing 1 and a lower lamp shade 2. The upper end of the lamp shade has a cylindrical docking tube 3, which can extend into and fit into a mounting cavity at the lower end of the lamp housing. Two or more docking grooves 4 are evenly provided on the outer peripheral wall of the docking tube along the circumferential direction. The docking grooves are designed as elongated strips and arranged along the circumference of the docking tube. A clearance opening 5 is provided on the upper side wall of one end of the docking groove, extending upward through the upper end face of the docking tube. A baffle 6 is provided at the middle of the bottom surface of the docking groove. A locking block 7 is provided on the inner peripheral wall of the mounting cavity, corresponding to the clearance opening. After the docking tube is inserted into the mounting cavity, the locking block can be inserted into the docking groove from the clearance opening. After the lamp housing and lamp shade are rotated by an angle, the locking block can fit into the end of the docking groove away from the clearance opening. The locking block can abut against one side surface of the baffle to restrict the rotation between the lamp housing and lamp shade.
[0035] In this downlight structure, during assembly, the mating cylinder at the upper end of the lampshade is inserted into the mounting cavity at the lower end of the lamp housing. The corresponding locking block passes through the upper end of the clearance opening and enters the mating groove. Then, by rotating the lamp housing and lampshade at a certain angle, the locking block can pass over the stop bar and engage with the end of the mating groove furthest from the clearance opening. The locking block abuts against one side of the stop bar, thus restricting rotation between the lamp housing and lampshade. This designed stop bar structure makes the engagement of the lamp housing and lampshade more stable and reliable, better preventing them from falling off.
[0036] In this specific embodiment, there are two docking grooves evenly arranged along the circumferential direction.
[0037] In this way, the docking slots are designed in two parts, making the arrangement simpler and more reasonable.
[0038] In this specific embodiment, two thickened portions 8 are symmetrically arranged on the inner circumferential surface of the docking cylinder along the diameter direction, and the docking groove is provided on the outer circumferential surface of the docking cylinder at a position corresponding to the thickened portions.
[0039] In this way, by thickening the inner circumference of the docking cylinder to form a thickened part, and then setting the docking groove at the position corresponding to the thickened part on the outer circumference of the docking cylinder, the structural arrangement is more reasonable, which allows for a larger depth dimension of the docking groove and improves the reliability of the snap-fit.
[0040] In this specific embodiment, the lamp housing is designed as a rectangular box structure with an open bottom; and at least part of the lower middle part of the four inner peripheral walls of the lamp housing is an arc-shaped mating surface 9, and the mounting cavity is formed between the four arc-shaped mating surfaces; the locking block is provided on one of the sets of opposite arc-shaped mating surfaces.
[0041] In this way, the structural design of the lamp housing is simpler and more reasonable, and it is easier to form a locking block.
[0042] In this specific embodiment, a chamfered structure is provided on the side of the stop bar adjacent to the clearance opening, forming a guide slope 10.
[0043] This design simplifies the structure of the retaining strip, making assembly easier and requiring less force to assemble than to disassemble.
[0044] In this specific embodiment, the front and rear sides of the card block are each provided with chamfers, and the size of the chamfer on the front side of the card block is larger than the size of the chamfer on the rear side of the card block.
[0045] In this way, the structural design of the card block is more reasonable, making it easier to assemble and disassemble; and it can make the force required for assembly less than the force required for disassembly.
[0046] In this specific embodiment, a rounded corner 11 is provided on the upper side wall of the docking groove at the position opposite to the clearance opening.
[0047] This makes the structural design simpler and more reasonable, and also provides guidance during assembly.
[0048] In this specific embodiment, the upper sidewall of the docking groove is inclined as a whole.
[0049] This makes the structural design more reasonable, allowing for a tighter connection between the lamp housing and the lamp shade after assembly.
[0050] In this specific embodiment, a U-shaped cutout 12 is provided on the bottom surface of the docking groove at the end away from the clearance opening, and a clearance block 13 is formed inside the cutout.
[0051] In this way, by designing a U-shaped cutout, a relief block is formed inside the cutout. After the block is engaged with the mating groove, the relief block can deform inward to allow the block to better fit into the mating groove, thereby improving the stability and reliability of the engagement.
[0052] In summary, the above-mentioned downlight structure has the advantages of simpler structural design, different forces required for assembling and disassembling the lamp housing and lamp cover, and improved snap-fit reliability.
[0053] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.
Claims
1. A down lamp structure, comprising a down lamp body, the down lamp body comprising a lamp shell at an upper end and a lamp cover at a lower end; the lamp cover upper end has a cylindrical designed docking cylinder, and the docking cylinder can be extended into fit into the mounting cavity having at the lamp shell lower end; two or more docking grooves are uniformly arranged on the docking cylinder peripheral wall and along the circumferential direction, the docking grooves are designed as long strip structure and arranged along the docking cylinder circumferential direction; a clearance is arranged on the docking groove one end upper side wall and penetrating the docking cylinder upper end face; characterized in that; The abutment groove is provided with a blocking strip protruding outward at the middle of the bottom surface; the inner wall of the installation cavity is provided with a clamping block protruding inward at a position corresponding to each clearance; after the abutment cylinder is inserted into the installation cavity, the clamping block can be inserted into the abutment groove from the clearance, and after the lamp shell and the lampshade are rotated by an angle, the clamping block can be fitted into the end of the abutment groove away from the clearance, and the clamping block can abut against one side surface of the blocking strip to limit the rotation between the lamp shell and the lampshade.
2. The tube lamp structure of claim 1, wherein: The abutment groove is provided with two blocking strips protruding outward at the middle of the bottom surface.
3. The tube lamp structure of claim 2, wherein: The abutment cylinder is provided with two thickened portions on the inner surface and symmetrically along the diameter direction, and the abutment groove is provided on the outer surface of the abutment cylinder at a position corresponding to the thickened portions.
4. The tube lamp structure of claim 2, wherein: The lamp shell is designed as a rectangular box structure with an open lower end, and the lower end of each of the four inner walls has at least a portion of an arc-shaped matching surface, and the four arc-shaped matching surfaces form the installation cavity; the clamping block is arranged on one set of opposite arc-shaped matching surfaces.
5. The tube lamp structure of claim 1, wherein: One side of the blocking strip adjacent to the clearance is provided with an inverted bevel structure and forms a guide slope.
6. The tube lamp structure of claim 1, wherein: The front and rear sides of the clamping block are each provided with an inverted bevel, and the size of the inverted bevel on the front side of the clamping block is greater than that on the rear side.
7. The tube lamp structure of claim 1, wherein: The upper side wall of the abutment groove is provided with an inverted bevel at a position opposite to the clearance.
8. The tube lamp structure of claim 1, wherein: The upper side wall of the abutment groove is inclined as a whole.
9. The tube lamp structure of claim 1, wherein: The bottom surface of the abutment groove is provided with a cutout in the form of a U-shaped design at an end away from the clearance, and the cutout forms a clearance block inside.