CN217008210U - Audio signal SD card decoding device - Google Patents

Abstract

The utility model provides an audio signal SD card decoding device, comprising: an equipment casing, a connection card holder and a clip-mounted base; the clip-mounted base comprises: a support back plate, a pressing block, and two sets of symmetrically arranged composite arc springs And L-shaped pressure holder. The utility model is used in conjunction with the connection socket and the clip-mounted base, so that the device can be conveniently fixed on the sound box. During operation, the connection socket only needs to be pre-bonded on the side wall of the sound box, and then the clip-mounted base is clamped on the sound box. Connect the card holder, finally insert the SD card into the device case, and connect the audio cable to the audio input interface of the speaker.

Description

Audio signal SD card decoding device

Technical Field

The utility model belongs to the technical field of SD card identification, and particularly relates to an audio signal SD card decoding device.

Background

The SD memory card is a new generation memory device based on a semiconductor flash memory, and is widely used in portable devices such as digital cameras, tablet computers, and multimedia players due to its excellent characteristics of small size, high data transfer speed, hot-swappability, and the like.

Although most digital cameras, tablet computers and multimedia players have the SD card decoding function, i.e. can read and play audio data in the SD card, there are some peripheral devices with lower prices that cannot directly use the SD card. In order to solve the above technical problems, those skilled in the art propose an audio signal SD card decoding apparatus, which is used as a switching device to assist peripheral devices that cannot directly use the SD card, such as a sound box, to play audio. However, the audio signal SD card decoding device itself is an independent device, and has the technical problems of inconvenient carrying and no suitable placement.

Disclosure of Invention

In order to solve the above technical problems, the present invention provides an audio signal SD card decoding apparatus. The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview and is intended to neither identify key/critical elements nor delineate the scope of such embodiments. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.

The utility model adopts the following technical scheme:

in some optional embodiments, there is provided an audio signal SD card decoding apparatus, including: the equipment comprises an equipment shell, a connecting clamping seat and a clamping base, wherein the equipment shell is arranged on the clamping base, and the clamping base is arranged on the connecting clamping seat; the clamping base comprises: support the backplate, press two sets of compound arc spring and the L type that the briquetting, symmetry set up and press and hold the piece, it is formed by two upper and lower shell plates butt joints to support the backplate, just two upper and lower shell plates enclose to establish and form built-in chamber, compound arc spring sets up built-in intracavity, the bottom mounting of compound arc spring is in on the chamber wall in built-in chamber, the top of compound arc spring with press the briquetting to be connected, the L type is pressed and is held the setting and be in on the lateral surface of compound arc spring.

The composite arc spring is characterized in that a pressing opening is formed in the supporting back plate, the pressing block is arranged in the pressing opening, a balance plate is arranged at the bottom of the pressing block, and the top end of the composite arc spring is connected with the pressing block through the balance plate.

Wherein, the audio signal SD card decoding device further comprises: the guide device is arranged between the two groups of composite arc springs; the guide device includes: the lower surface of the balance plate is provided with a first positioning sliding block, and the first positioning sliding block is sleeved on the positioning rod.

Wherein the guide device further comprises: the telescopic rod is connected with the first positioning sliding block at one end and connected with the second positioning sliding block at the other end, and the second positioning sliding block is sleeved on the composite arc-shaped spring.

The composite arc-shaped spring is composed of a plurality of arc-shaped elastic sheets which are separated at a certain distance, the L-shaped pressing and holding piece is arranged on the arc-shaped elastic sheet on the outermost side in the composite arc-shaped spring, and the second positioning sliding block is sleeved on the arc-shaped elastic sheet on the innermost side in the composite arc-shaped spring.

Wherein, the connection cassette includes: the binding plate comprises a binding plate and a bearing plate arranged on the binding plate, wherein the bearing plate is also provided with a wire bundling groove.

The support back plate is provided with a long hollow groove, and the L-shaped pressing piece penetrates out of the long hollow groove and is clamped on the bearing plate.

The utility model has the following beneficial effects: the device can be conveniently fixed on the sound box by matching the connecting clamping seat and the clamping base, and the device can be operated by only adhering the connecting clamping seat on the side wall of the sound box in advance, clamping the clamping base on the connecting clamping seat, finally inserting the SD card into the equipment shell and connecting the audio line to the audio input interface of the sound box.

Drawings

FIG. 1 is a schematic diagram of an external structure of an audio signal SD card decoding device according to the present invention;

FIG. 2 is a schematic diagram of an internal structure of an audio signal SD card decoding device according to the present invention;

fig. 3 is a control schematic diagram of an audio signal SD card decoding apparatus according to the present invention.

Detailed Description

The following description and the drawings sufficiently illustrate specific embodiments of the utility model to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others.

As shown in fig. 1-3, in some illustrative embodiments, the present invention provides an audio signal SD card decoding apparatus comprising: the equipment comprises an equipment shell 1, a connecting clamping seat 2, a clamping base 3 and a guiding device 4.

The equipment casing 1 is installed on pressing from both sides dress base 3, and is concrete, presses from both sides and offers the screw hole that sinks on the dress base 3, and equipment casing 1 passes through the screw and installs on pressing from both sides dress base 3, and the decoding of SD card and the audio data that output the audio amplifier can be discerned are realized to equipment casing 1 built-in device, and it is connected with the audio amplifier through the audio data line. The built-in components of the apparatus casing 1 include: SD card interface circuit, MCU, audio D/A circuit, audio output circuit, address identification circuit and USART communication interface, above-mentioned each unit adopt circuit, device, interface among the prior art can.

The clamping base 3 is arranged on the connecting clamping seat 2. The connection holder 2 includes: the loudspeaker box comprises an adhesive plate 201 and a bearing plate 202 arranged on the adhesive plate 201, wherein the back surface of the adhesive plate 201 is provided with adhesive, and the adhesive is adhered to the side wall of the loudspeaker box when in use, and the clamping base 3 is clamped on the bearing plate 202. The bearing plate 202 is further provided with a wiring harness slot 203 for fixing a power line and an audio data line, and the wiring harness slot plays a role in arranging wiring harnesses.

The clip fitting base 3 includes: a supporting back plate, a pressing block 301, a composite arc spring and an L-shaped pressing piece 302.

The support back plate is formed by butting an upper outer shell plate and a lower outer shell plate 303, and the butting mode is selected as screw connection, namely the two outer shell plates 303 are connected into a whole through screws. The two groups of composite arc-shaped springs are symmetrically arranged, have certain elasticity and tend to restore to the original shape. The number of the L-shaped pressing pieces 302 is two, and the two L-shaped pressing pieces 302 are respectively arranged on the outer side surfaces of the two groups of composite arc-shaped springs as clamping jaw structures.

The upper and lower shell plates 303 are enclosed to form a built-in cavity 304, the composite arc-shaped spring is arranged in the built-in cavity 304, the bottom end of the composite arc-shaped spring is fixed on the cavity wall of the built-in cavity 304, and the top end of the composite arc-shaped spring is connected with the pressing block 301. The composite arc spring is composed of a plurality of arc-shaped elastic sheets 305 which are separated by a certain distance, has the advantage of large elasticity, and can rebound quickly. When the clamping base is used specifically, the pressing block 301 is pressed, the arc-shaped elastic sheet 305 is pressed to be more bent when the pressing block 301 moves downwards, two sides of the arc-shaped elastic sheet expand outwards, so that the two L-shaped pressing and holding pieces 302 are driven to be away from each other, when the clamping base reaches the connecting clamping base 2, the pressing block 301 is loosened, the composite arc-shaped spring rebounds to draw the two L-shaped pressing and holding pieces 302 close, and the clamping base 3 is clamped on the bearing plate 202. The operation mode is simple, and stable in structure is difficult for droing after fixing moreover, still has easy dismounting's advantage.

Set up on the support backplate and press mouth 306, press the setting of piece 301 in pressing mouth 306, and press the bottom of piece 301 and set up balance plate 307, the top of compound arc spring is passed through balance plate 307 and is connected with pressing piece 301 for when pressing down and pressing piece 301, the arc shell fragment 305 atress of both sides is even, avoids appearing the condition of slope. The supporting plate is further provided with a long hollow-out groove 308, and the L-shaped pressing member 302 penetrates out of the long hollow-out groove 308 and is clamped on the bearing plate 202.

The guide device 4 mainly plays a role in stably clamping the base 3, is arranged between the two groups of composite arc-shaped springs, ensures the stability of the composite arc-shaped springs during rebound and compression, and avoids the stability from being influenced by shaking.

Wherein the guiding means 4 comprise: the positioning rod 401, the first positioning slide block 402, the second positioning slide block 403 and the telescopic rod 404.

The first positioning slider 402 is disposed on the lower surface of the balance plate 307, and the first positioning slider 402 is sleeved on the positioning rod 401. When the pressing block 301 presses the balance plate 307 downward, the balance plate 307 can only move along the positioning rod 401 under the limiting action of the first positioning slider 402, so that the balance plate 307 is prevented from shaking and inclining. One end of the telescopic rod 404 is connected with the first positioning sliding block 402, the other end is connected with the second positioning sliding block 403, and the second positioning sliding block 403 is sleeved on the innermost arc-shaped elastic sheet 305 of the composite arc-shaped spring, so that the stability of clamping the base 3 is further ensured.

The L-shaped pressing and holding piece 302 is arranged on the arc-shaped elastic sheet 305 on the outermost side in the composite arc-shaped spring, and the L-shaped pressing and holding piece 302 is pushed to move outwards when the arc-shaped elastic sheet 305 is bent.

The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, simplifications and equivalents which do not depart from the spirit and principle of the present invention should be construed as being included in the scope of the present invention.

Claims (7)

1. an audio signal SD card decoding device, is characterized in that, comprises: equipment casing, connection card holder and clamping base, described equipment casing is installed on described clamping base, and described clamping base is arranged on On the connection card seat; the clip-mounted base includes: a support back plate, a pressing block, two sets of symmetrically arranged composite arc springs and an L-shaped pressing member, and the support back plate is connected by the butt joints of the upper and lower shell plates. and the upper and lower outer shell plates are enclosed to form a built-in cavity, the composite arc-shaped spring is arranged in the built-in cavity, and the bottom end of the composite arc-shaped spring is fixed on the cavity wall of the built-in cavity, The top end of the composite arc-shaped spring is connected with the pressing block, and the L-shaped pressing member is arranged on the outer surface of the composite arc-shaped spring. 2 . The device for decoding an audio signal SD card according to claim 1 , wherein a pressing port is provided on the support backboard, the pressing block is arranged in the pressing port, and the bottom of the pressing block is 2. 3 . A balance plate is provided, and the top end of the composite arc spring is connected with the pressing block through the balance plate. 3. An audio signal SD card decoding device according to claim 2, characterized in that, further comprising: a guide device, the guide device is arranged between two groups of compound arc springs; the guide device comprises: a positioning device A rod and a first positioning slider, the first positioning slider is arranged on the lower surface of the balance plate and the first positioning slider is sleeved on the positioning rod. 4 . The audio signal SD card decoding device according to claim 3 , wherein the guiding device further comprises: a second positioning slider and a telescopic rod, one end of the telescopic rod is connected to the first positioning slider. 5 . The block is connected, and the other end is connected with the second positioning slider, and the second positioning slider is sleeved on the composite arc spring. 5 . The audio signal SD card decoding device according to claim 4 , wherein the composite arc-shaped spring is composed of a plurality of arc-shaped shrapnel separated by a certain distance, and the L-shaped pressing member is arranged on the On the outermost arc-shaped elastic sheet in the composite arc-shaped spring, the second positioning slider is sleeved on the innermost arc-shaped elastic sheet in the composite arc-shaped spring. 6 . The audio signal SD card decoding device according to claim 5 , wherein the connection card holder comprises: a sticking board and a receiving board arranged on the sticking board, and the receiving board is further provided with There are harness slots. 7 . The device for decoding an audio signal SD card according to claim 6 , wherein an elongated hollow slot is further provided on the support back panel, and the L-shaped pressing member is removed from the elongated hollow slot. 8 . Passed out and clamped on the receiving plate.

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