Metal plate music box with hidden screw heads

Abstract

The utility model discloses a metal plate music box with hidden screw heads, which comprises an upper cover plate, a front panel and a bottom plate, one end of the upper cover plate is clamped with the front panel, the inner wall of the front panel is provided with a blind hole, a screw screwed into the blind hole is detachably connected between the front panel and the upper cover plate, and the inner side of the front panel is provided with blind hole tapping M3 teeth. When the front panel and the upper cover are assembled with the upper cover plate, the front panel and the upper cover can be locked and fixed through M3 screws from an inner cavity of the upper cover plate, the front panel and the upper cover plate formed by bending a metal plate form a box with the top and the periphery closed, no exposed fastener is arranged, a user can feel that the appearance of the equipment has a certain depth when using the equipment, and the design is not simple, and the cost is low. The device is a cheap article which is easy to process and assemble, and the whole device can provide better appearance attractiveness and overall texture.

Description

Technical Field

[0001] The utility model relates to the technical field of music boxes, in particular to a sheet metal music box with hidden screw heads. Background Technique

[0002] A music box is a wireless music sharing device that can play music on a mobile phone through a speaker without connecting to a speaker. As a new wireless music product and listening method, the music box uses Wi-Fi as the wireless communication method and can be controlled by a mobile phone, a tablet computer, or a personal PC to realize the transmission of online and local music to the speaker for playing, and is widely used.

[0003] The existing desktop music boxes have the following drawbacks when in use: Generally, the sheet metal shell design of desktop music boxes only focuses on their functions and has no requirements for various aspects of the appearance. Usually, the locking and fixing shell connection screw heads are directly exposed outside very intuitively. Such a device has a simple structure design, is easy to process and install. Although it does not affect the use of the device, for some users who care about the appearance and perception of the device, the existing directly exposed structure design greatly affects the overall texture of the music box. Therefore, we propose a sheet metal music box with hidden screw heads. Content of the Utility Model

[0004] The main purpose of the utility model is to provide a sheet metal music box with hidden screw heads, which adopts an internal connection structure, so that the fasteners cannot be directly observed from the outside, improving the appearance beauty and overall texture, and can effectively solve the problems in the background technique.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A sheet metal music box with hidden screw heads includes an upper cover plate, and also includes a front panel and a bottom plate. One end of the upper cover plate is clamped with the front panel. A blind hole is opened on the inner wall of the front panel. A screw that is screwed into the blind hole is detachably connected between the front panel and the upper cover plate. The bottom plate is detachably connected to the bottom of the upper cover plate, and a PCB board is installed on the upper surface of the bottom plate.

[0007] Furthermore, installation holes corresponding in position are opened in both the bottom plate and the PCB board; when installing the PCB board, it is first placed on the surface of the bottom plate, and fasteners are screwed through the installation holes to fix the PCB board and the bottom plate together, and then the overall assembly is carried out.

[0008] Furthermore, fastening holes corresponding in position are opened between the inside of the bottom plate and the inside of the upper cover plate; when assembling the bottom plate and the upper cover plate, the upper cover plate and the bottom plate are fixed by screwing fasteners into the fastening holes.

[0009] Furthermore, feet are installed at the four corners of the bottom of the bottom plate; the feet structure plays a supporting role for the whole device.

[0010] Compared with the prior art, the utility model has the following beneficial effects: The shell part of the music box is composed of an upper cover plate, a front panel and a bottom plate. The front panel is made of a 5mm-thick aluminum alloy plate by die forming, with arc-shaped profiles made at both ends. Blind holes are designed on the inner side of the front panel and tapped with M3 threads. When assembling with the upper cover plate, the front panel and the upper cover can be locked and fixed with M3 screws from the inner cavity of the upper cover plate. The front panel and the sheet metal-bent upper cover plate form a box with a closed top and four sides, without exposed fasteners. The PCB board is installed in the device from the bottom, and the PCB board is locked on the bottom plate with fasteners. The bottom plate with the installed PCB board is then locked on the box composed of the front panel and the upper cover. The fasteners are screwed in from the bottom up, and during normal use, the user cannot see the fasteners. When the user uses the device, they can feel that the appearance of the device has a certain depth, rather than a low-cost item with simple design, easy processing and easy assembly. The whole device can provide better appearance aesthetics and overall texture. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic top view of a sheet metal music box with hidden screw heads according to the utility model.

[0012] Figure 2 It is a schematic bottom view of a sheet metal music box with hidden screw heads according to the utility model.

[0013] Figure 3 It is a schematic view of the connection structure between the upper cover plate and the front panel of a sheet metal music box with hidden screw heads according to the utility model.

[0014] In the figure: 1. Upper cover plate; 2. Front panel; 3. Blind hole; 4. Screw; 5. Bottom plate; 6. PCB board; 7. Mounting hole; 8. Fastening hole; 9. Foot. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] In order to make the technical means, creative features, achieved purposes and effects of the utility model easy to understand, the utility model will be further described below in conjunction with specific embodiments.

[0016] As Figures 1 - 3 shown, a sheet metal music box with hidden screw heads includes an upper cover plate 1, and also includes a front panel 2 and a bottom plate 5. One end of the upper cover plate 1 is snap-connected with the front panel 2. Blind holes 3 are formed in the inner wall of the front panel 2. A screw 4 that is screwed into the blind holes 3 is detachably connected between the front panel 2 and the upper cover plate 1. The bottom of the upper cover plate 1 is detachably connected with the bottom plate 5, and a PCB board 6 is installed on the upper surface of the bottom plate 5.

[0017] Among them, installation holes 7 corresponding in position are provided inside both the bottom plate 5 and the PCB board 6, and fastening holes 8 corresponding in position are provided between the inside of the bottom plate 5 and the inside of the upper cover plate 1; when the PCB board 6 is installed, it is first placed on the surface of the bottom plate 5, and the PCB board 6 and the bottom plate 5 are fixed together by screwing fasteners through the installation holes 7, and then overall assembly is carried out. When the bottom plate 5 is assembled with the upper cover plate 1, the upper cover plate 1 and the bottom plate 5 are fixed by screwing fasteners into the fastening holes 8.

[0018] Among them, feet 9 are installed at the four corners of the bottom of the bottom plate 5; the structure of the feet 9 plays a supporting role for the whole device.

[0019] It should be noted that the present utility model is a sheet metal music box with hidden screw heads. During assembly, the housing part of the music box is composed of an upper cover plate 1, a front panel 2, and a bottom plate 5. The front panel 2 is made of a 5-mm-thick aluminum alloy plate formed by a mold, with arc-shaped profiles made at both ends. Blind holes 3 are designed on the inner side of the front panel 2 and tapped with M3 threads. When assembled with the upper cover plate 1, the front panel 2 can be locked and fixed with the upper cover by using M3 screws 4 from the inner cavity of the upper cover plate 1. The front panel 2 and the sheet metal-bent upper cover plate 1 form a box closed at the top and around, without exposed fasteners. The PCB board 6 is installed into the device from the bottom, and the PCB board 6 is locked to the bottom plate 5 with fasteners. The bottom plate 5 with the installed PCB board 6 is then locked to the box formed by the front panel 2 and the upper cover. The fasteners are screwed in from bottom to top. During normal use, the user cannot see the fasteners. When the user uses the device, the user can feel that the appearance of the device has a certain depth, rather than a low-cost item with simple design, easy processing, and easy assembly. The whole device can provide better appearance aesthetics and overall texture.

[0020] The above shows and describes the basic principles, main features, and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A sheet metal music box for hiding screw heads, comprising an upper cover plate (1), characterized in that, It further includes a front panel (2) and a bottom plate (5). One end of the upper cover plate (1) is snap-connected to the front panel (2). A blind hole (3) is formed in the inner wall of the front panel (2). A screw (4) screwed into the blind hole (3) is detachably connected between the front panel (2) and the upper cover plate (1). The bottom of the upper cover plate (1) is detachably connected to the bottom plate (5), and a PCB board (6) is installed on the upper surface of the bottom plate (5).

2. The sheet metal music box with hidden screw heads according to claim 1, wherein: Mounting holes (7) corresponding in position are formed both inside the bottom plate (5) and inside the PCB board (6).

3. A sheet metal music box with a hidden screw head according to claim 1, characterized in that: Fastening holes (8) corresponding in position are formed between the inside of the bottom plate (5) and the inside of the upper cover plate (1).

4. A sheet metal music box with a hidden screw head according to claim 1, characterized in that: Support feet (9) are installed at the four corners of the bottom of the bottom plate (5).

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