Open-mounted down lamp

Abstract

The open-mounted down lamp comprises an outer barrel body and a built-in down lamp, a light emitting opening is formed in the bottom of the outer barrel body, and the open-mounted down lamp is characterized in that a positioning lap joint wall is arranged in the light emitting opening, at least two positioning lap joint parts are arranged on the outer side wall of the built-in down lamp at intervals, and each positioning lap joint part is provided with an elastic lap joint part; mounting notches are correspondingly formed in the positioning lap-joint wall, the positioning lap-joint wall is divided into a plurality of positioning lap-joint sections by the mounting notches, each positioning lap-joint section corresponds to one mounting notch, and each positioning lap-joint section sequentially comprises a guide part, a positioning lap-joint part and a limiting part from the position close to the corresponding mounting notch and from the position far away from the corresponding mounting notch; the built-in down lamp is installed in the outer barrel from bottom to top, after the elastic lap joint parts on the positioning lap joint component pass through the corresponding installation notches, the built-in down lamp is rotated, the elastic lap joint parts enter the positioning lap joint parts along the guide parts to complete positioning lap joint, and installation limiting is formed through the limiting parts. The device is simple in structure and convenient to mount and dismount.

Description

Technical Field

[0001] The present invention relates to the technical field of lighting, and in particular to a surface-mounted downlight. Background Art

[0002] Currently, the existing surface-mounted downlights generally include an inner downlight and an outer cylinder. The inner downlight is installed inside the outer cylinder through a corresponding connection and installation mechanism. Currently, common methods for realizing the connection and installation of the inner downlight and the outer cylinder are as follows Figure 1 As shown, a press-fitting piece B is spot-welded to the inner wall of the outer cylinder A. The middle of the press-fitting piece B is a pressing piece B1 with one end free and slightly bent. A positioning and resting wall A1 is provided at the bottom of the outer cylinder A. After the inner downlight C is placed into the outer cylinder A, it is first positioned and rested through the positioning and resting wall A1 provided at the bottom, and then the pressing piece B1 is bent and folded over the inner downlight C to realize the fixed installation of the inner downlight C inside the outer cylinder A. This kind of structure has the following problems: (1) The pressing piece needs to be bent manually or with the help of other tools, which is inconvenient to operate and is likely to cause insecure fixation due to uneven force; (2) When disassembling, the pressing piece needs to be bent in the reverse direction, which is likely to cause deformation or damage to the components. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a surface-mounted downlight with a simple structure, convenient installation and disassembly, and stable assembly.

[0004] The technical solution adopted by the present invention to solve the above technical problems is as follows: A surface-mounted downlight includes an outer cylinder and an inner downlight. The bottom of the outer cylinder is a light-emitting opening. An annular positioning and lapping wall is vertically arranged in the light-emitting opening. At least two positioning and lapping components are spaced apart on the outer side wall of the inner downlight. The positioning and lapping components have elastic lapping parts that can be positioned and lapped on the positioning and lapping wall. Corresponding to the positioning and lapping components on the positioning and lapping wall, there are installation notches for the elastic lapping parts to pass through, which are matched with the number and assembly positions of the positioning and lapping components. The installation notches divide the positioning and lapping wall into multiple positioning and lapping segments. One positioning and lapping segment corresponds to one installation notch. The positioning and lapping segment is successively a guiding part, a positioning and lapping part, and a limiting part from near to far corresponding to the installation notch; the inner downlight is installed into the outer cylinder from bottom to top. After the elastic lapping parts on the positioning and lapping components pass through the corresponding installation notches, the inner downlight is rotated to make the elastic lapping parts enter the positioning and lapping part along the guiding part to complete the positioning and lapping, and installation limitation is formed through the limiting part.

[0005] The guide part includes an introduction part and an outlet part from close to the corresponding installation notch and far away, the vertical height between the top end surface of the introduction part and the bottom end surface of the outer cylinder gradually increases from close to the corresponding installation notch and far away, the vertical height between the top end surface of the outlet part and the bottom end surface of the outer cylinder gradually decreases from close to the corresponding installation notch and far away, and the highest point is formed at the joint between the top end surface of the introduction part and the top end surface of the outlet part.

[0006] The vertical height between the top end surface of the positioning overlap portion and the bottom end surface of the outer cylinder is the same at all locations and is equal to the minimum vertical height between the lead-out portion and the bottom end surface of the outer cylinder.

[0007] The vertical height between the top end surface of the limiting portion and the bottom end surface of the outer cylinder is the same at all locations and is greater than the vertical height between the positioning overlap portion and the bottom end surface of the outer cylinder.

[0008] The positioning overlap component includes a mounting portion for fixedly mounting with the outer side wall of the built-in downlight, and the mounting portion includes a vertically arranged mounting plate, and the mounting plate is detachably fixedly connected with the outer side wall of the built-in downlight through a detachable mounting piece.

[0009] The mounting member is a mounting screw, and a matching mounting screw hole is provided at the corresponding mounting position of the built-in downlight. The mounting plate is screwed into the corresponding mounting screw hole through the mounting screw to achieve a detachable fixed connection with the outer wall of the built-in downlight.

[0010] The mounting plate is provided with a protrusion protruding toward the inner side wall of the built-in downlight.

[0011] There are three protrusions, and the three protrusions are arranged in a triangle.

[0012] The elastic overlapping portion is a overlapping plate, the inner end of the overlapping plate is connected to the mounting plate as a fixed end, and the outer end of the overlapping plate is a free end.

[0013] The position of the free end in the up-down direction is higher than that of the fixed end, and the free end forms an acute angle with the horizontal plane where the fixed end is located.

[0014] The acute angle is 5°.

[0015] The opposite sides of the lap plate are bent upward to form side protection parts.

[0016] The positioning and lapping wall is connected to the outer cylinder through a horizontally arranged annular connecting wall. The annular connecting wall is arranged within the light-emitting opening. At a position corresponding to the installation notch on the annular connecting wall, an installation opening for the elastic lapping portion to pass through is correspondingly provided. The built-in downlight has a face ring, and the elastic lapping portions are arranged at intervals above the face ring. After installation, the face ring is arranged in abutment against the lower side of the annular connecting wall.

[0017] The lapping plate and the mounting plate are an integral part, and the mounting plate is bent to form the elastic lapping portion.

[0018] Compared with the prior art, the advantages of the present invention are as follows: the structure is simple, and without the aid of additional tools, a stable connection and installation between the built-in downlight and the outer cylinder can be conveniently and quickly achieved, and the assembly efficiency is increased by at least 50% compared with the traditional structure; the top surface of the positioning and lapping section is designed with a specific screwing-in installation curve, and the anti-vibration performance is significantly better than that of the traditional structure. In addition, for this kind of structure, when the built-in downlight needs to be maintained or replaced, it is not necessary to disassemble the whole together with the outer cylinder, and the maintenance and replacement are more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the traditional installation structure in the background art; Figure 2 is a schematic cross-sectional structure diagram of the present invention; Figure 3 is Figure 2 an enlarged schematic structure diagram at D in Figure 4 is Figure 2 an enlarged schematic structure diagram at E in Figure 5 is a partial structure schematic diagram of the positioning and lapping section of the present invention after being flattened and cooperating with the positioning and lapping component, where the dotted line in the figure is the reference line; Figure 6 is Figure 5 a schematic structure diagram of completing the positioning and lapping on the basis of Figure 7 is a three-dimensional structure schematic diagram of the outer cylinder of the present invention; Figure 8 is a three-dimensional structure schematic diagram of the positioning and lapping component of the present invention; Figure 9 is a three-dimensional structure schematic diagram of the built-in downlight of the present invention; Figure 10 is Figure 9 an enlarged schematic structure diagram at F in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The present invention will be further described in detail below in conjunction with the embodiments with reference to the drawings.

[0021] As shown in the figure, a surface-mounted downlight includes an outer cylinder 1 and an inner built-in downlight 2. The bottom of the outer cylinder 1 is a light-emitting opening 11. Inside the light-emitting opening 11, there is a vertically arranged annular positioning and lapping wall 10. At least two positioning and lapping components 3 are arranged at intervals on the outer side wall of the inner built-in downlight 2. The positioning and lapping component 3 has an elastic lapping portion 30 that can be positioned and lapped on the positioning and lapping wall 10. Corresponding to the positioning and lapping component 3, there are installation notches 101 on the positioning and lapping wall 10 that are matched with the number and assembly positions of the positioning and lapping components 3 and through which the elastic lapping portion 30 can pass. The installation notches 101 divide the positioning and lapping wall 10 into multiple positioning and lapping segments 102. One positioning and lapping segment 102 corresponds to one installation notch 101. The positioning and lapping segment 102 is successively a guiding portion 1021, a positioning and lapping portion 1022, and a limiting portion 1023 from near to far from the corresponding installation notch 101. The inner built-in downlight 2 is installed into the outer cylinder 1 from bottom to top. After the elastic lapping portion 30 on the positioning and lapping component 3 passes through the corresponding installation notch 101, the inner built-in downlight 2 is rotated so that the elastic lapping portion 30 enters the positioning and lapping portion 1022 along the guiding portion 1021 to complete the positioning and lapping, and the installation limit is formed by the limiting portion 1023.

[0022] In this specific embodiment, there are two positioning and lapping components 3, and the two positioning and lapping components 3 are evenly arranged at intervals. Considering the manufacturing cost, the two evenly arranged positioning and lapping portions 1022 can already meet the stable positioning and installation of the inner built-in downlight 2 in the outer cylinder 1.

[0023] In this specific embodiment, the guiding portion 1021 includes an inlet portion 10211 and an outlet portion 10212 that are far from the corresponding mounting notch 101. The vertical height between the top end surface of the inlet portion 10211 and the bottom end surface of the outer cylinder 1 gradually increases from near the corresponding mounting notch 101 and far away. The vertical height between the top end surface of the outlet portion 10212 and the bottom end surface of the outer cylinder 1 gradually decreases from near the corresponding mounting notch 101 and far away. The docking portion between the top end surface of the inlet portion 10211 and the top end surface of the outlet portion 10212 forms the highest point H. During installation, by rotating the built-in cylinder lamp 2, the elastic overlapping portion 30 gradually rises along the top end surface of the inlet portion 10211, and after reaching the highest point H, it gradually falls along the top end surface of the outlet portion 10212 until the positioning overlapping portion 1022 realizes positioning and overlapping. The highest point H cooperates with the limiting portion 1023 to achieve stable limiting installation; during disassembly, by rotating the built-in cylinder lamp 2, the elastic overlapping portion 30 gradually rises along the top end surface of the outlet portion 10212, and after reaching the highest point H, it gradually falls along the top end surface of the inlet portion 10211. The inlet portion 10211 facilitates the import and installation, the outlet portion 10212 facilitates the export and disassembly, and the highest point H is used to achieve the limit in another direction.

[0024] In this specific embodiment, the vertical height between the top end surface of the positioning overlapping portion 1022 and the bottom end surface of the outer cylinder 1 is the same everywhere and is equal to the minimum vertical height between the outlet portion 10212 and the bottom end surface of the outer cylinder 1. So that the top end surface of the positioning overlapping portion 1022 is a smooth platform portion, which is convenient for the stable overlapping installation of the elastic overlapping portion 30.

[0025] In this specific embodiment, the minimum vertical height between the top end surface of the inlet portion 10211 and the bottom end surface of the outer cylinder 1 is less than the vertical height between the top end surface of the positioning overlapping portion 1022 and the bottom end surface of the outer cylinder 1. The height of the positioning overlapping portion 1022 is designed as the most suitable positioning and installation height for the built-in cylinder lamp 2 and the outer cylinder 1. Then, by designing the minimum vertical height of the top end surface of the inlet portion 10211 to be less than the height of the positioning overlapping portion 1022, it is convenient for the elastic overlapping portion 30 to be snapped in after passing through the mounting notch 101.

[0026] In this specific embodiment, the vertical height between the top end surface of the limiting portion 1023 and the bottom end surface of the outer cylinder 1 is the same everywhere and is greater than the vertical height between the positioning overlapping portion 1022 and the bottom end surface of the outer cylinder 1. So that the limiting portion 1023 provides a stable limiting effect.

[0027] In this specific embodiment, the positioning and lapping component 3 includes a mounting portion for fixedly installing on the outer sidewall of the built-in downlight 2. The mounting portion includes a vertically arranged mounting plate 31, and the mounting plate 31 is detachably and fixedly connected to the outer sidewall of the built-in downlight 2 through a detachable mounting member 4. The structure is simple and easy to manufacture.

[0028] In this specific embodiment, the mounting member 4 is a mounting screw, and corresponding mounting screw holes (not shown in the figure) are provided at the corresponding mounting positions of the built-in downlight 2. The mounting plate 31 is screwed into the corresponding mounting screw holes through the mounting screws to achieve detachable and fixed connection with the outer sidewall of the built-in downlight 2. The structure is simple, the cost is low, and it is convenient for installation and disassembly.

[0029] In this specific embodiment, a convex portion 311 protruding towards the inner sidewall direction of the built-in downlight 2 is provided on the mounting plate 31. During pre-installation, first, the convex portion 311 is attached to the outer sidewall mounting portion of the built-in downlight 2, and the mounting plate 31 can be effectively prevented from rotating and displacing when the mounting screws are tightened.

[0030] In this specific embodiment, there are three convex portions 311, and the three convex portions 311 are arranged in a triangle. The three convex portions 311 arranged in a triangle make the pre-installation anti-rotation more stable.

[0031] In this specific embodiment, the elastic lapping portion 30 is a lapping plate. The inner end of the lapping plate is connected to the mounting plate 31 as a fixed end, and the outer end of the lapping plate is a free end. The structure is simple, ensuring that the elastic lapping portion 30 has stable elastic performance.

[0032] In this specific embodiment, the position of the free end in the up and down direction is higher than that of the fixed end, and the horizontal plane where the free end and the fixed end are located forms an acute angle α. Allowing for manufacturing errors is convenient for snapping in and installing.

[0033] In this specific embodiment, the acute angle α is 5°. It is set to form a 5-degree angle with the horizontal plane, and the gap during snapping in and the interference amount after snapping in are close, ensuring that it can be snapped in and clamped under certain error conditions.

[0034] In this specific embodiment, the opposite sides of the lapping plate are bent upwards to form side protection portions 301. The side protection portions 301 provide side anti-collision protection and strength enhancement.

[0035] In this specific embodiment, the positioning and overlapping wall 10 is connected to the outer cylinder 1 through a horizontally arranged annular connecting wall 13. The annular connecting wall 13 is arranged in the light-emitting opening 11. At the position corresponding to the installation notch 101 on the annular connecting wall 13, an installation opening 131 for the elastic overlapping portion 30 to pass through is correspondingly arranged. The built-in downlight 2 has a face ring 21. The elastic overlapping portions 30 are arranged at intervals above the face ring 21. After installation, the face ring 21 is arranged in a close-contact manner below the annular connecting wall 13. It can be realized that the bottom of the built-in downlight 2 can completely cover the light-emitting opening 11, and the structure is compact and beautiful.

[0036] In this specific embodiment, the overlapping plate and the mounting plate 31 are an integral part. The mounting plate 31 is bent to form the elastic overlapping portion 30. This integral part is made of elastic spring steel material. It is easy to manufacture, has stable elastic performance, and is convenient for the installation of the installation part and the positioning and overlapping installation of the overlapping part.

Claims

1. A surface-mounted downlight, comprising an outer cylinder and an internal downlight, wherein the bottom of the outer cylinder is a light-emitting opening, characterized in that The light-emitting opening is internally provided with a vertically arranged annular positioning and lapping wall. At least two positioning and lapping components are spaced apart on the outer side wall of the built-in downlight. The positioning and lapping components have elastic lapping portions that can be positioned and lapped on the positioning and lapping wall. Corresponding to the positioning and lapping wall, there are installation notches for the elastic lapping portions to pass through, which are matched with the number and assembly positions of the positioning and lapping components. The installation notches divide the positioning and lapping wall into multiple positioning and lapping segments. One positioning and lapping segment corresponds to one installation notch. The positioning and lapping segments are, in order from near to the corresponding installation notch and far away, a guiding portion, a positioning and lapping portion, and a limiting portion. The built-in downlight is installed into the outer cylinder from bottom to top. After the elastic lapping portions on the positioning and lapping components pass through the corresponding installation notches, the built-in downlight is rotated so that the elastic lapping portions enter the positioning and lapping portions along the guiding portion to complete positioning and lapping, and installation limiting is formed through the limiting portion.

2. The surface-mounted downlight according to claim 1, characterized in that The guiding portion includes an introducing portion and a leading-out portion from near to the corresponding installation notch and far away. The vertical height between the top end surface of the introducing portion and the bottom end surface of the outer cylinder gradually increases from near to the corresponding installation notch and far away. The vertical height between the top end surface of the leading-out portion and the bottom end surface of the outer cylinder gradually decreases from near to the corresponding installation notch and far away. The docking portion between the top end surface of the introducing portion and the top end surface of the leading-out portion forms the highest point.

3. The surface-mounted downlight according to claim 2, characterized in that The vertical height between the top end surface of the positioning and lapping portion and the bottom end surface of the outer cylinder is the same everywhere and equal to the minimum vertical height between the leading-out portion and the bottom end surface of the outer cylinder.

4. The surface-mounted downlight according to claim 3, wherein The vertical height between the top end surface of the limiting portion and the bottom end surface of the outer cylinder is the same everywhere and greater than the vertical height between the positioning and lapping portion and the bottom end surface of the outer cylinder.

5. The surface-mounted downlight according to claim 1, wherein The positioning and lapping component includes an installation portion for fixedly installing with the outer side wall of the built-in downlight. The installation portion includes a vertically arranged installation plate, and the installation plate is detachably fixedly connected to the outer side wall of the built-in downlight through a detachable installation piece.

6. The surface-mounted downlight according to claim 5, wherein The installation plate is provided with a protruding portion protruding towards the inner side wall direction of the built-in downlight.

7. The surface-mounted downlight according to claim 6, wherein There are three protruding portions, and the three protruding portions are arranged in a triangle.

8. The surface-mounted downlight according to claim 5, wherein The elastic lapping portion is a lapping plate. The inner end of the lapping plate is connected to the installation plate as a fixed end, and the outer end of the lapping plate is a free end.

9. The surface-mounted downlight according to claim 8, wherein The position of the free end in the up and down direction is higher than the position of the fixed end, and the free end forms an acute angle with the horizontal plane where the fixed end is located.

10. The surface-mounted downlight according to claim 1, wherein The positioning and lapping wall is connected to the outer cylinder through a horizontally arranged annular connecting wall. The annular connecting wall is arranged in the light-emitting opening. At the position corresponding to the installation notch on the annular connecting wall, an installation opening for the elastic lapping portion to pass through is correspondingly arranged. The built-in cylindrical lamp has a face ring. The elastic lapping portions are arranged at intervals above the face ring. After installation, the face ring is arranged in abutment with the lower part of the annular connecting wall.

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