Screw cap structure of down lamp

Abstract

The rotary cover structure comprises a barrel cover and a limiting elastic piece arranged on the barrel cover, an opening is formed in the barrel cover, and when the barrel cover is screwed relative to a lamp shell, the limiting elastic piece penetrates through the opening to abut against the lamp shell. The barrel cover and the lamp shell are connected without fasteners such as screws, and the problem that the barrel cover and the lamp shell are prone to being lost is avoided. And secondly, a limiting elastic piece is connected to the barrel cover, when the barrel cover is assembled on the lamp shell, the limiting elastic piece penetrates through the opening to abut against the lamp shell, the connection strength between the lamp shell and the barrel cover is further enhanced, and the problem that the lamp shell and the barrel cover are loosened is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a rotating cover structure of a down lamp. BACKGROUND

[0002] The existing down lamp comprises a cover and a lamp shell for accommodating a light-emitting component. The cover is generally connected to the lamp shell by screwing. However, the threaded structure is prone to wear after being opened and closed for many times, and the cover is prone to loosening. In addition, the threaded structure is prone to twisting the power cord together when being tightened, which may result in the power cord being twisted off or broken. Alternatively, the cover is fixed to the lamp shell by screws, which requires the use of a wrench or other tools for assembly, and the installation is very troublesome. Moreover, the screws or other fasteners are prone to being lost. SUMMARY

[0003] The utility model aims at solving at least one of the technical problems existing in the prior art. To this end, the utility model provides a rotating cover structure of a down lamp.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme:

[0005] A rotating cover structure of a down lamp comprises a cover and a limiting spring plate arranged on the cover. An opening is formed in the cover. When the cover is screwed relative to the lamp shell, the limiting spring plate passes through the opening and abuts against the lamp shell.

[0006] Preferably, a fixing column for mounting the limiting spring plate is arranged on the cover.

[0007] Preferably, the limiting spring plate comprises a first arc-shaped section and a second arc-shaped section which are adapted to the inner side wall of the cover. A bending section is arranged between the first arc-shaped section and the second arc-shaped section. The first arc-shaped section is connected to the fixing column. The cover drives the first arc-shaped section, the second arc-shaped section and the bending section to rotate synchronously. The bending section can pass through the opening and abut against the lamp shell.

[0008] Preferably, a positioning groove is arranged on the outer periphery of the cover. When the cover is rotated relative to the lamp shell, the upper end of the lamp shell moves into the positioning groove.

[0009] Preferably, the first arc-shaped section, the second arc-shaped section and the bending section are integrally formed.

[0010] Preferably, the limiting spring plate can be fixed to the fixing column by screws.

[0011] Preferably, a movable hole is arranged on the outer periphery of the cover. The movable hole defines a first end portion and a second end portion. A positioning protrusion is arranged in the lamp shell. When the positioning protrusion moves from the first end portion to the second end portion, the cover is screwed to the lamp shell.

[0012] The utility model discloses the beneficial effect is:

[0013] The connection between the barrel cover and the lamp shell of the application does not need screws and other fasteners, avoiding the problem of easy loss. Secondly, the application connects a limiting elastic sheet on the barrel cover, when the barrel cover is assembled on the lamp shell, the limiting elastic sheet passes through the opening and abuts against the lamp shell, further strengthening the connection strength between the lamp shell and the barrel cover, preventing the problem of loosening between the lamp shell and the barrel cover. BRIEF DESCRIPTION OF DRAWINGS

[0014] The above and / or additional aspects and advantages of the utility model will become apparent and more readily appreciated from the following description of the embodiments, with reference to the following drawings, in which:

[0015] Figure 1 Structure diagram for assembling the screw cover structure of the application to the down lamp Figure 1 ;

[0016] Figure 2 Structure diagram for assembling the screw cover structure of the application to the down lamp Figure 2 ;

[0017] Figure 3 Structure diagram for assembling the screw cover structure of the application to the down lamp Figure 3 ;

[0018] Figure 4 Structure diagram for assembling the screw cover structure of the application to the down lamp Figure 4 . DETAILED DESCRIPTION

[0019] The embodiments of the utility model will be described in detail below, and the embodiment examples are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout.

[0020] The orientation shown in the drawings cannot be understood as limiting the specific protection scope of the utility model, and is only for the reference understanding of the preferred embodiment, and the position of the product components shown in the drawings can be changed or the number can be increased or the structure can be simplified.

[0021] The "connection" described in the specification and the components shown in the drawings "connected" with each other can be understood as fixedly connected or detachably connected or integrally connected, which can be directly connected or connected through an intermediate medium, and the person skilled in the art can understand the connection relationship according to the specific situation and can draw the screw connection or riveting or welding or clamping or embedding connection and other ways to replace different embodiments in a suitable way.

[0022] The orientation words such as up, down, left, right, top, bottom and the like described in the specification and shown in the drawings can be directly contacted or contacted through other features between them; for example, up can be directly above and obliquely above, or it only means higher than others; other orientations can be understood similarly.

[0023] The manufacturing materials of the components with solid shapes represented in the specification and drawings can adopt metal materials or non-metal materials or other synthetic materials; the machining processes adopted by the components with solid shapes can be stamping, forging, casting, wire cutting, laser cutting, injection molding, numerical milling, three-dimensional printing, machining and the like; the ordinary skilled in the art can adaptively select or combine selection according to different processing conditions, cost and precision, but are not limited to the above materials and manufacturing processes.

[0024] A rotating cover structure of a down lamp, referring to Figures 1-4 , comprising a cover 1 and a limiting spring 2 arranged on the cover 1, the cover 1 is provided with an opening 3, and when the cover 1 is screwed relative to a lamp shell 4, the limiting spring 2 passes through the opening 3 and abuts against the lamp shell 4.

[0025] Further, the cover 1 is provided with a fixing column 5 for mounting the limiting spring 2.

[0026] Further, the limiting spring 2 comprises a first arc-shaped section 21 and a second arc-shaped section 22 matched with the inner side wall of the cover 1, a bending section 23 is arranged between the first arc-shaped section 21 and the second arc-shaped section 22, the first arc-shaped section 21 is connected to the fixing column 5, the cover 1 drives the first arc-shaped section 21, the second arc-shaped section 22 and the bending section 23 to rotate synchronously, and the bending section 23 can pass through the opening 3 and abut against the lamp shell 4.

[0027] Further, the cover 1 is provided with a positioning groove 11 on the outer periphery, and the cover 1 is rotated relative to the lamp shell 4 to move into the positioning groove 11 at the upper end of the lamp shell 4.

[0028] Further, the first arc-shaped section 21, the second arc-shaped section 22 and the bending section 23 are integrally formed.

[0029] Further, the limiting spring 2 can be fixed on the fixing column 5 through a screw.

[0030] Further, the cover 1 is provided with a movable hole 6 on the outer periphery, the movable hole 6 is defined with a first end portion 61 and a second end portion 62, and the lamp shell 4 is provided with a positioning protrusion 7; when the positioning protrusion 7 moves from the first end portion 61 to the second end portion 62, the cover 1 is screwed on the lamp shell 4.

[0031] The working principle of the utility model is:

[0032] As Figure 3 shown, as an embodiment 1, the present application takes the example of setting 3 limiting elastic sheets 2 on the barrel cover 1 to illustrate the design concept of the present application. Openings 3 corresponding to the limiting elastic sheets 2 are formed on the barrel cover 1, i.e. 3 openings 3 are formed on the inner side wall of the barrel cover 1. One end of the limiting elastic sheet 2 is connected to the fixed column 5 of the barrel cover 1. The limiting elastic sheet 2 can be selected as an example of the structure cooperation of the first arc segment 21, the second arc segment 22 and the bending segment 23. Figure 2 As shown in

[0033] On the basis of the above technical solutions, the first arc segment 21, the second arc segment 22 and the bending segment 23 are preferably set as an integral molding structure. As for the installation of the limiting elastic sheet 2, the fixed column 5 can be provided in the barrel cover 1, and the limiting elastic sheet 2 can be fixed on the fixed column 5 by a screw.

[0034] On the basis of the above technical solutions, as for the tightening mode between the barrel cover 1 and the lamp shell 4, the movable hole 6 is provided on the outer periphery of the barrel cover 1, the movable hole 6 is defined with the first end portion 61 and the second end portion 62, and the positioning protrusion 7 is provided in the lamp shell 4. When the positioning protrusion 7 moves from the first end portion 61 to the second end portion 62, the barrel cover 1 is tightened on the lamp shell 4. Figure 3 When the structure of the movable hole 6 is as shown in

[0035] In the above technical solutions, the present application mainly improves the connection between the barrel cover 1 and the lamp shell 4. As for the design cooperation of the light emitting assembly and the lamp shell 4, it belongs to the mature technical means of the present application, so this text will not be repeated.

[0036] Although the utility model is described in detail with reference to the above embodiments, it is obvious to those skilled in the art through the disclosure that various changes or modifications can be made to the utility model without departing from the principles and spirit of the utility model defined in the claims. Therefore, the detailed description of the embodiments of the disclosure is only used for explanation, not for limiting the utility model, and the protection range is defined by the content of the claims.

Claims

1. A structure of a rotary cap of a down lamp, characterized in that, The utility model provides a lamp cap, which comprises a cylinder cover (1) and a limiting elastic sheet (2) arranged on the cylinder cover (1), wherein the cylinder cover (1) is provided with an opening (3), and when the cylinder cover (1) is screwed relative to a lamp shell (4), the limiting elastic sheet (2) passes through the opening (3) and abuts against the lamp shell (4).

2. The structure of the rotary cover of the down lamp according to claim 1, wherein, The cylinder cover (1) is provided with a fixing column (5) for mounting the limiting elastic sheet (2).

3. The structure of the rotary cover of the down lamp according to claim 2, characterized in that, The limiting elastic sheet (2) comprises a first arc-shaped section (21) and a second arc-shaped section (22) which are adapted to the inner side wall of the cylinder cover (1), and a bending section (23) is arranged between the first arc-shaped section (21) and the second arc-shaped section (22), the first arc-shaped section (21) is connected to the fixing column (5), the cylinder cover (1) drives the first arc-shaped section (21), the second arc-shaped section (22) and the bending section (23) to rotate synchronously, and the bending section (23) can pass through the opening (3) and abut against the lamp shell (4).

4. The structure of the rotary cover of the down lamp according to claim 1, wherein, The outer periphery of the cylinder cover (1) is provided with a positioning groove (11), and the cylinder cover (1) is rotated relative to the lamp shell (4) until the upper end of the lamp shell (4) is moved into the positioning groove (11).

5. The structure of the rotary cover of the down lamp according to claim 3, wherein, The first arc-shaped section (21), the second arc-shaped section (22) and the bending section (23) are integrally formed.

6. The structure of the rotary cover of the down lamp according to claim 2, characterized in that, The limiting elastic sheet (2) can be fixed on the fixing column (5) by means of a screw.

7. The structure of the rotary cover of the down lamp according to claim 1, wherein, The outer periphery of the cylinder cover (1) is provided with a movable hole (6), the movable hole (6) is defined with a first end portion (61) and a second end portion (62), the lamp shell (4) is provided with a positioning protrusion (7), and when the positioning protrusion (7) is moved from the first end portion (61) to the second end portion (62), the cylinder cover (1) is screwed on the lamp shell (4).

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