A waterproof and dustproof downlight

Abstract

This utility model relates to the field of downlight technology and discloses a waterproof and dustproof downlight, including a lamp body. A detachable waterproof and dustproof component is provided at the lower end of the lamp body. The detachable waterproof and dustproof component includes a lampshade body, a fixing ring, and multiple compensating sealing rings. The fixing ring and the multiple compensating sealing rings are fixedly fitted onto the inner wall of the lamp body. A mounting ring is fixedly connected to the upper end of the lampshade body. A mounting groove is formed in the middle of the outer wall of the mounting ring. A main sealing ring is engaged inside the mounting groove. Multiple rounded corner compensating grooves are formed on the outer wall of the main sealing ring. Multiple rounded corner retaining grooves are formed on the inner wall of the fixing ring. This utility model, by incorporating a detachable waterproof and dustproof component, significantly improves waterproof and dustproof performance, effectively reduces the impact of single seal failure on overall protection performance, avoids the decline in sealing performance caused by the aging of a single sealing ring, and facilitates maintenance and repair, ensuring sealing performance.

Description

Technical Field

[0001] This utility model relates to the field of downlight technology, and in particular to a waterproof and dustproof downlight. Background Technology

[0002] Waterproof and dustproof downlights, as a type of lighting fixture that combines lighting and protection functions, are widely used in humid, dusty, or water-prone environments such as bathrooms, kitchens, outdoor corridors, and parking lots. Their core requirement is to ensure lighting effects while effectively preventing dust and water from entering the lamp body, avoiding damage to internal electronic components due to moisture and dust accumulation, thereby extending the lifespan of the lamp.

[0003] However, existing waterproof and dustproof downlights have many shortcomings in practical applications: most products use a single sealing ring for sealing, and once the sealing ring ages or is locally worn, it is very easy to cause the seal to fail, affecting the overall protective performance. At the same time, the lampshade and lamp body of traditional downlights are mostly fixed with screws or connected by complex clips, which require tools to disassemble, making the operation cumbersome and increasing the difficulty of maintenance and repair. This makes the maintenance of the internal sealing parts relatively difficult as well.

[0004] Therefore, those skilled in the art have provided a waterproof and dustproof downlight to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies and provide a waterproof and dustproof downlight. By incorporating a removable waterproof and dustproof component, and through a combination design of a "main sealing ring + compensating sealing ring + rounded corner compensating groove," it can effectively block the intrusion of fluids and solid particles, significantly improving waterproof and dustproof performance. It effectively reduces the impact of single seal failure on overall protective performance, while avoiding the decline in sealing performance caused by the aging of a single sealing ring. Furthermore, the lamp cover body can be quickly fixed and unlocked without tools, solving the problem of difficult disassembly of traditional downlights, thus facilitating maintenance and repair, and further ensuring sealing performance.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A waterproof and dustproof downlight includes a lamp body. The lower end of the lamp body is provided with a detachable waterproof and dustproof component. The detachable waterproof and dustproof component includes a lampshade body, a fixing ring, and multiple compensating sealing rings. The fixing ring and multiple compensating sealing rings are fixedly sleeved on the inner wall of the lamp body. The upper end of the lampshade body is fixedly connected with a mounting ring. The outer wall of the mounting ring has a mounting groove in the middle. A main sealing ring is engaged inside the mounting groove. The outer wall of the main sealing ring has multiple rounded corner compensating grooves.

[0008] Through the above technical solution, the main sealing ring is fixed on the mounting ring through the mounting groove, forming the first sealing barrier between the lamp cover body and the lamp body. Through the combined design of "main sealing ring + compensation sealing ring + rounded corner compensation groove", the reliability of the seal is greatly improved, thereby preventing dust and water from entering from the gap between the lamp body and the lamp cover body.

[0009] Furthermore, the inner wall of the fixing ring is provided with multiple rounded corner slots, and the outer wall of the mounting ring is provided with multiple spring grooves near the top. A round-headed locking block is movably disposed inside each of the multiple spring grooves, and a return spring is fixedly connected between each of the multiple round-headed locking blocks and the inner wall of the opposite end of the corresponding spring groove.

[0010] With the above technical solution, when installing the lampshade body, the round-headed locking block is first squeezed by the chamfer at the lower end of the fixing ring, and the return spring is compressed, causing the round-headed locking block to retract into the spring groove. When the mounting ring rotates until the round-headed locking block is aligned with the rounded corner groove, the return spring releases its elasticity, pushing the round-headed locking block to pop out and lock into the rounded corner groove, thus achieving quick fixation of the lampshade body and the lamp body. When disassembling, the lampshade body is rotated again, and the inclined surface of the rounded corner groove squeezes the round-headed locking block, forcing the return spring to compress, and the round-headed locking block disengages from the groove, thus completing the unlocking. Disassembly and assembly operations can be completed without tools, significantly improving maintenance efficiency and solving the problems of difficult lampshade disassembly and inconvenient maintenance and repair in traditional downlights.

[0011] Furthermore, the main sealing ring is engaged within the lamp body, and multiple compensation sealing rings are fitted into corresponding rounded corner compensation grooves;

[0012] Through the above technical solution, the main sealing ring is engaged in the lamp body to form a radial seal between the lamp body and the mounting ring. The compensation sealing ring fits into the corresponding rounded corner compensation groove to form a second axial seal. The double sealing structure blocks the intrusion path of fluids and solid particles from different directions, which greatly improves the waterproof and dustproof level of the downlight and reduces the impact of the failure of a single seal on the overall protection performance.

[0013] Furthermore, the outer walls of the plurality of the compensating sealing rings are all provided with a polytetrafluoroethylene coating;

[0014] Through the above technical solution, the polytetrafluoroethylene coating has an extremely low coefficient of friction and excellent corrosion resistance. When the compensating seal ring is in contact with or moves relative to the rounded corner compensating groove, the coating can reduce the frictional resistance between the two, and at the same time prevent the compensating seal ring from wearing and aging due to long-term friction.

[0015] Furthermore, each of the multiple compensating sealing rings has an internal cavity;

[0016] Through the above technical solution, the cavity inside the compensating seal ring has good elastic deformation ability. When it is squeezed by the main sealing ring and the fixed ring, the cavity will shrink, causing the compensating seal ring to expand into the rounded corner compensating groove, thereby tightly fitting with the inner wall of the rounded corner compensating groove. This can maintain the sealing pressure for a long time and avoid the decline in sealing performance caused by the aging of a single sealing ring.

[0017] Furthermore, the mounting ring is fitted inside the fixing ring;

[0018] The above technical solution enables the round-headed locking block to effectively correspond with the rounded corner locking slot, thereby achieving smooth locking and fixing.

[0019] Furthermore, each of the aforementioned round-headed locking blocks is engaged within a corresponding rounded corner slot;

[0020] Through the above technical solution, the engagement of the round head block and the round corner slot forms a mechanical locking structure. The elastic force of the return spring keeps the round head block in contact with the inner wall of the round corner slot, limiting the axial and radial displacement of the mounting ring within the fixing ring, thereby firmly fixing the lampshade body to the lamp body.

[0021] This utility model has the following beneficial effects:

[0022] 1. This utility model proposes a waterproof and dustproof downlight, which, through the combination design of "main sealing ring + compensation sealing ring + rounded corner compensation groove", effectively blocks the intrusion of fluids and solid particles, significantly improves waterproof and dustproof performance, effectively reduces the impact of single seal failure on overall protection performance, and avoids the decline in sealing performance caused by the aging of a single sealing ring. Finally, with the cooperation of return spring, round head block and rounded corner groove, the lamp cover body can be quickly fixed and unlocked without tools, solving the problem of difficult disassembly of traditional downlights, thus facilitating maintenance and repair, and ensuring sealing performance. Attached Figure Description

[0023] Figure 1 This is an isometric schematic diagram of a waterproof and dustproof downlight proposed in this utility model;

[0024] Figure 2 This is a partial orthogonal sectional view of a waterproof and dustproof downlight proposed in this utility model;

[0025] Figure 3 for Figure 2 Enlarged structural diagram at point A;

[0026] Figure 4 This is a top sectional view of a waterproof and dustproof downlight proposed in this utility model;

[0027] Figure 5 for Figure 4 Enlarged structural diagram at point B;

[0028] Figure 6 This is a partial orthosectional view of the compensating sealing ring for a waterproof and dustproof downlight proposed in this utility model.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Lamp body; 2. Easy-to-remove waterproof and dustproof components; 3. Lampshade body; 4. Mounting ring; 5. Mounting groove; 6. Main sealing ring; 7. Rounded corner compensation groove; 8. Compensation sealing ring; 9. PTFE coating; 10. Fixing ring; 11. Spring groove; 12. Round head locking block; 13. Return spring; 14. Rounded corner locking groove; 15. Cavity. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Reference Figure 1-6This utility model provides a specific embodiment: a waterproof and dustproof downlight, including a lamp body 1, with a detachable waterproof and dustproof component 2 at the lower end of the lamp body 1. The detachable waterproof and dustproof component 2 includes a lampshade body 3, a fixing ring 10, and multiple compensating sealing rings 8. The fixing ring 10 and multiple compensating sealing rings 8 are fixedly sleeved on the inner wall of the lamp body 1. A mounting ring 4 is fixedly connected to the upper end of the lampshade body 3. A mounting groove 5 is opened in the middle of the outer wall of the mounting ring 4. A main sealing ring 6 is engaged inside the mounting groove 5. The outer wall of the main sealing ring 6 has a... Multiple rounded corner compensation grooves 7 are present. The main sealing ring 6 is engaged within the lamp body 1. Multiple compensation sealing rings 8 are fitted with corresponding rounded corner compensation grooves 7. The main sealing ring 6 is engaged within the lamp body 1, forming a radial seal between the lamp body 1 and the mounting ring 4. The compensation sealing rings 8 are fitted with corresponding rounded corner compensation grooves 7, forming a second axial seal. This double sealing structure blocks the intrusion paths of fluids and solid particles from different directions, significantly improving the waterproof and dustproof rating of the downlight and reducing the impact of a single seal failure on the overall protective performance. The main sealing ring 6 is installed... The groove 5 is fixed to the mounting ring 4, forming the first sealing barrier between the lampshade body 3 and the lamp body 1. Through the combined design of "main sealing ring 6 + compensating sealing ring 8 + rounded corner compensating groove 7", the reliability of the seal is significantly improved, thus preventing dust and water from intruding through the gap between the lamp body 1 and the lampshade body 3. The outer walls of the multiple compensating sealing rings 8 are all coated with polytetrafluoroethylene (PTFE) coating 9. PTFE coating 9 has an extremely low coefficient of friction and excellent corrosion resistance. When the compensating sealing ring 8 and the rounded corner compensating groove 7 are in contact or move relative to each other, the coating can reduce... To reduce frictional resistance between the two and prevent wear and aging of the compensating sealing ring 8 due to long-term friction, each of the multiple compensating sealing rings 8 has a cavity 15 inside. The cavity 15 inside the compensating sealing ring 8 gives it good elastic deformation ability. When it is squeezed by the main sealing ring 6 and the fixed ring 10, the cavity 15 will shrink, causing the compensating sealing ring 8 to expand into the rounded corner compensating groove 7, thereby tightly fitting with the inner wall of the rounded corner compensating groove 7. This can maintain the sealing pressure for a long time and avoid the decline in sealing performance caused by the aging of a single sealing ring.

[0033] The inner wall of the fixing ring 10 has multiple rounded corner grooves 14, and the upper part of the outer wall of the mounting ring 4 has multiple spring grooves 11. Each spring groove 11 has a rounded head block 12 movably disposed inside. The mounting ring 4 engages within the fixing ring 10, ensuring effective correspondence between the rounded head block 12 and the rounded corner groove 14, thus achieving smooth engagement and fixation. Each rounded head block 12 and the inner wall of the corresponding spring groove 11 are fixedly connected to a return spring 13. The rounded head blocks 12 are engaged within their respective rounded corner grooves 14. The engagement of the rounded head blocks 12 and the rounded corner grooves 14 forms a mechanical locking structure. The spring force of the return spring 13 keeps the rounded head blocks 12 in contact with the inner wall of the rounded corner groove 14, limiting the axial and radial displacement of the mounting ring 4 within the fixing ring 10. This securely fixes the lampshade body 3 to the lamp body 1. When installing the lampshade body 3, the round-headed locking block 12 is preferentially squeezed by the chamfer at the lower end of the fixing ring 10, and the return spring 13 is compressed, causing the round-headed locking block 12 to retract into the spring groove 11. When the mounting ring 4 rotates until the round-headed locking block 12 is aligned with the rounded corner groove 14, the return spring 13 releases its elastic force, pushing the round-headed locking block 12 out and into the rounded corner groove 14, thus achieving quick fixation between the lampshade body 3 and the lamp body 1. When disassembling, the lampshade body 3 is rotated again, and the inclined surface of the rounded corner groove 14 squeezes the round-headed locking block 12, forcing the return spring 13 to compress, and the round-headed locking block 12 disengages from the groove, thus completing the unlocking. Disassembly and assembly can be completed without tools, significantly improving maintenance efficiency and solving the problems of difficult lampshade disassembly and inconvenient maintenance and repair in traditional downlights.

[0034] Working principle: The easily detachable waterproof and dustproof component 2 at the lower end of the lamp body 1 achieves sealing and convenient disassembly and assembly through multiple structures. During installation, the mounting ring 4 of the lamp cover body 3 engages with the fixing ring 10 inside the lamp body 1. The round-headed locking block 12 is first squeezed by the chamfer at the lower end of the fixing ring 10, and then compressed into the spring groove 11 by the return spring 13. When the mounting ring 4 rotates until the round-headed locking block 12 aligns with the rounded corner groove 14 of the fixing ring 10, the return spring 13 releases its elastic force to push the round-headed locking block 12 into the groove, forming a mechanical locking fixation. For sealing, the main sealing ring 6 on the mounting ring 4 engages. A radial seal is formed inside the lamp body 1, and the rounded corner compensation groove 7 on its outer wall fits with the compensation sealing ring 8 on the fixing ring 10 to form an axial seal. The compensation sealing ring 8 expands into the rounded corner compensation groove 7 and fits tightly under compression by means of the elastic deformation capability of the internal cavity 15. The polytetrafluoroethylene coating 9 on the outer wall reduces friction and wear. The double sealing structure blocks the intrusion of fluid and solid particles. When disassembling, by rotating the lamp cover body 3 again, the inclined surface of the rounded corner slot 14 presses the round head slot 12 to compress the spring, and the slot can be unlocked by disengaging from the slot, realizing quick disassembly and maintenance without tools.

[0035] The following points should be noted in this article:

[0036] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in a general design.

[0037] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A waterproof and dustproof downlight, comprising a lamp body (1), characterized in that: The lower end of the lamp body (1) is provided with a removable waterproof and dustproof component (2). The removable waterproof and dustproof component (2) includes a lamp cover body (3), a fixing ring (10) and multiple compensating sealing rings (8). The fixing ring (10) and multiple compensating sealing rings (8) are fixedly sleeved on the inner wall of the lamp body (1). The upper end of the lamp cover body (3) is fixedly connected with a mounting ring (4). The middle part of the outer wall of the mounting ring (4) is provided with a mounting groove (5). The main sealing ring (6) is engaged inside the mounting groove (5). Multiple rounded corner compensating grooves (7) are provided on the outer wall of the main sealing ring (6).

2. The waterproof and dustproof downlight according to claim 1, characterized in that: The inner wall of the fixing ring (10) is provided with multiple rounded corner slots (14), and the outer wall of the mounting ring (4) is provided with multiple spring grooves (11) near the top. A round head block (12) is movably arranged inside each of the multiple spring grooves (11), and a return spring (13) is fixedly connected between the multiple round head blocks (12) and the inner wall of the opposite end of the corresponding spring groove (11).

3. A waterproof and dustproof downlight according to claim 1, characterized in that: The main sealing ring (6) is engaged in the lamp body (1), and the multiple compensation sealing rings (8) are all fitted with the corresponding rounded corner compensation grooves (7).

4. A waterproof and dustproof downlight according to claim 1, characterized in that: The outer walls of the multiple compensation sealing rings (8) are provided with a polytetrafluoroethylene coating (9).

5. A waterproof and dustproof downlight according to claim 1, characterized in that: Each of the multiple compensation sealing rings (8) has a cavity (15) inside.

6. A waterproof and dustproof downlight according to claim 1, characterized in that: The mounting ring (4) is fitted inside the fixing ring (10).

7. A waterproof and dustproof downlight according to claim 2, characterized in that: Multiple round-headed locking blocks (12) are engaged in the corresponding rounded corner locking slots (14).

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