Portable accordion playing device

Abstract

The invention relates to the technical field of outdoor playing equipment, and discloses a portable accordion playing device, and the device comprises a first box which defines a first storage region, a second storage region and a third storage region, the first storage region is used for placing a microphone assembly, the second storage region is used for placing an accordion, and the third storage region is used for placing a battery pack; the second box is hinged to the first box and defines a fourth storage area, a fifth storage area, a sixth storage area and a seventh storage area, the fifth storage area is used for placing reverberation equipment, the fourth storage area is used for placing sound card equipment, the sixth storage area is used for placing sound equipment, and the sound card equipment, the reverberation equipment and the sound equipment are connected through a plurality of audio cables. The seventh storage area is used for storing an audio cable; a first universal wheel set is installed at the bottom of the first box, and a second universal wheel set is installed at the bottom of the second box. According to the portable accordion playing device, the accordion is convenient to carry, reverberation equipment can be installed, and the ensemble effect is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of outdoor performance equipment, and in particular to a portable accordion performance device. Background Art

[0002] The accordion suffers from significant portability limitations when performed outdoors. Furthermore, its unique acoustic properties create a natural incompatibility with the human vocal system, hindering the performance. The accordion's bellows, which push and pull to generate airflow that vibrates the reeds, produce a tone with a strong grain and harmonic resonance, rich in high-frequency overtones and strong penetration. When the performer sings simultaneously, the human voice's frequency spectrum overlaps significantly with the accordion's mid- and high-frequency ranges, particularly in the C4-G5 range, creating an energy conflict. Because the mechanical noise generated by the bellows is difficult to completely eliminate, the dynamic balance between the instrument and the vocals is extremely difficult to achieve without specialized acoustic equipment. This can easily lead to the vocal being masked by the instrument or the two tones blending and becoming muddy. This disharmony is particularly pronounced in the natural soundscape of outdoor music, where the lack of reverberation control further exacerbates the dissonance, significantly diminishing the overall ensemble's effectiveness. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a portable accordion playing device, which is easy to carry and can be equipped with a reverberation device to greatly enhance the ensemble effect.

[0004] The portable accordion playing device according to an embodiment of the present invention comprises: The first box defines a first storage space, wherein a first partition and a second partition are installed in the first storage space to vertically divide the first storage space into a first storage area, a second storage area, and a third storage area, wherein the second storage area is located between the first storage area and the third storage area; a second box hingedly connected to the first box; the second box defines a second storage space, and a third partition and a fourth partition are installed in the second storage space to vertically divide the second storage space into a fourth storage area, a fifth storage area, a sixth storage area, and a seventh storage area, wherein the fourth storage area, the fifth storage area, and the sixth storage area are all connected to the seventh storage area; The first partition is provided corresponding to the third partition, and the second partition is provided corresponding to the fourth partition; a first universal wheel set is installed at the bottom of the first box, and a second universal wheel set is installed at the bottom of the second box; a sound collecting component, stored in the first storage area; The accordion body is stored in the second storage area; a battery pack, stored in the third storage area; A sound card device is stored in the fourth storage area; Reverberation equipment, stored in the fifth storage area; Audio equipment, stored in the sixth storage area; The audio cable is stored in the seventh storage area; The sound card device, the reverberation device, and the audio device are connected by a plurality of audio cables; the sound collecting component is used to collect human voice and piano sound, the sound card device is used to optimize and adjust the human voice, the reverberation device mixes the optimized and adjusted human voice and piano sound and outputs them through the audio device; the battery pack is used to supply power to the sound card device, the reverberation device, and the audio device.

[0005] The portable accordion playing device according to the embodiment of the present invention has at least the following beneficial effects: By rationally planning the internal space of the performance box, an accordion, a sound collecting component, a battery pack, a sound card device, a reverberation device and an audio device are installed in the performance box. By carrying the performance device of this embodiment, a high-level performance can be completed outdoors at any time, and the portability is high. The sound collecting component collects the human voice and the piano sound, the sound card device optimizes and adjusts the human voice, and the reverberation device mixes the optimized and adjusted human voice and piano sound and outputs it through the audio device, thereby avoiding the human voice being covered by the piano sound, reducing the sense of separation between the human voice and the piano sound during performance, and improving the ensemble effect.

[0006] According to some embodiments of the present invention, the third storage area is provided at the bottom end of the first box in the vertical direction; An abutment plate is installed in the third storage area, the battery pack is placed on the abutment plate, and the abutment plate is connected to the side wall of the third storage area through an elastic member.

[0007] According to some embodiments of the present invention, the abutment plate is installed with a first limiting structure, and the second partition is installed with a second limiting structure. The second limiting structure passes through the second partition and is inserted into the first box to pre-position the battery pack. The first limiting structure is used to limit the horizontal sliding of the battery pack.

[0008] According to some embodiments of the present invention, the first limiting structure includes a rotating rod and a limiting plate. The rotating rod is rotatably mounted on the abutment plate around its own axis. Rotation of the rotating rod can drive the limiting plate to rotate so as to be inserted into the battery pack.

[0009] According to some embodiments of the present invention, along the width direction of the first box, at least one side of the third storage area is provided with a side panel, and the side panel is equipped with a cooling fan; The first box is provided with a through hole penetrating the first box, and the heat dissipation fan is arranged corresponding to the through hole.

[0010] According to some embodiments of the present invention, the third partition includes a third horizontal plate and a third vertical plate perpendicular to each other, and the fourth partition includes a fourth horizontal plate and a fourth vertical plate perpendicular to each other; The reverberation device is installed between the third horizontal plate and the fourth horizontal plate, and is connected to the third vertical plate and the fourth vertical plate.

[0011] According to some embodiments of the present invention, a first mounting plate is provided in the fourth storage area, and the sound card device is connected to the first mounting plate and the third partition plate; A second mounting plate is provided in the sixth storage area, and the audio equipment is connected to the second mounting plate and the fourth partition plate.

[0012] According to some embodiments of the present invention, the second box body is provided with an inspection port, the inspection port being connected to the seventh storage area; the inspection port is provided with an inspection door, the inspection door is provided with a mounting bracket protruding from a surface thereof, and the mounting bracket can be used to install a microphone stand; A pull rod assembly protruding from a surface of the first box is provided on a side of the first box facing away from the second box, and a thickness of the pull rod assembly is equal to a thickness of the mounting frame.

[0013] According to some embodiments of the present invention, the first box is installed with a first cover plate, the first cover plate is hinged at the opening of the first box, and a first buffer pad is installed on a side of the first cover plate facing the second box; And / or, the second box is installed with a second cover plate, the second cover plate is hinged at the opening of the second box, and a second buffer pad is installed on the side of the second cover plate facing the first box.

[0014] According to some embodiments of the present invention, a buffer layer is installed on the sidewall of the second receiving area and / or the sidewall of the third receiving area.

[0015] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which: Figure 1 This is a schematic axial view of an embodiment of the present application; Figure 2 A cross-sectional view of an embodiment of the present application; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 for Figure 1 Schematic diagram of the assembly of the internal structure of the first box; Figure 5 for Figure 1 Schematic diagram of the assembly of the internal structure of the second box; Figure 6 for Figure 4 Enlarged view of point B in the middle.

[0017] Figure Number: First box 100, first storage area 101, second storage area 102, third storage area 103, first partition 110, second partition 120, first universal wheel assembly 130, abutment plate 140, elastic member 141, first limiting structure 150, rotating rod 151, limiting plate 152, second limiting structure 160, side panel 170, cooling fan 171, through hole 180, filter 181, and pull rod assembly 190; Second box 200, fourth storage area 201, fifth storage area 202, sixth storage area 203, seventh storage area 204, third partition 210, third horizontal plate 211, third vertical plate 212, fourth partition 220, fourth horizontal plate 221, fourth vertical plate 222, second universal wheel set 230, first mounting plate 240, second mounting plate 250, access door 260, mounting bracket 261; A first cover plate 300 and a first buffer pad 310; A second cover plate 400 and a second buffer pad 410; Battery pack 500. DETAILED DESCRIPTION

[0018] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0019] In the description of the present invention, it should be understood that descriptions involving orientation, such as the orientation or positional relationship indicated by up, down, etc., are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0020] In the description of the present invention, "a plurality" refers to more than two. The use of "first" or "second" is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of the indicated technical features, or implicitly indicating the order of the indicated technical features.

[0021] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0022] Reference Figures 1 to 6 A portable accordion performance device according to an embodiment of the present invention includes a first box 100 and a second box 200. The first box 100 and the second box 200 are hinged to form a box body. When the box body is closed, it is similar to a large-sized suitcase. A first universal wheel set 130 is installed at the bottom of the first box 100, and a second universal wheel set 230 is installed at the bottom of the second box 200, which is easy to carry. When the box body is opened, a complete outdoor performance device can be assembled, and a good ensemble effect can be output.

[0023] In the examples of this application, refer to Figure 4 As shown, the first box 100 defines a first storage space, and a first partition 110 and a second partition 120 are installed in the first storage space to divide the first storage space into a first storage area 101, a second storage area 102 and a third storage area 103 along the vertical direction. The second storage area 102 is located between the first storage area 101 and the third storage area 103. Figure 5 As shown, the second box 200 defines a second storage space, and a third partition 210 and a fourth partition 220 are installed in the second storage space to vertically divide the second storage space into a fourth storage area 201, a fifth storage area 202, a sixth storage area 203, and a seventh storage area 204. The fourth storage area 201, the fifth storage area 202, and the sixth storage area 203 are all connected to the seventh storage area 204. The first partition 110 is provided corresponding to the third partition 210, and the second partition 120 is provided corresponding to the fourth partition 220.

[0024] The performance device of the embodiment of the present application also includes a sound collection component, an accordion body, a sound collection component, an accordion body, a battery pack 500, a sound card device, a reverberation device, an audio device and an audio cable. The sound collection component is stored in the first storage area 101, the accordion body is stored in the second storage area 102, the battery pack 500 is stored in the third storage area 103, the sound card device is stored in the fourth storage area 201, the reverberation device is stored in the fifth storage area 202, the audio device is stored in the sixth storage area 203, and the audio cable is stored in the seventh storage area 204; the sound card device, the reverberation device and the audio device are connected by multiple audio cables. The sound collection component is used to collect human voices and piano sounds, and mainly includes a sound collection microphone and a sound receiver installed on the accordion body. After collecting the human voice, the sound collection component transmits it to the sound card device, and the sound card device is used to optimize and adjust the human voice; for example, the sound card device can preset different matching mechanisms and adapt different optimization strategies according to different human voices. If the human voice has poor bass, the sound card device will detect this voice line and adapt the strategy of optimizing the bass accordingly; if the human voice line is unstable, the sound card device will detect this voice line and adapt the strategy of optimizing the stability of the voice line accordingly, etc.; the reverberation device will mix the optimized and adjusted human voice and piano sound and output them through the audio equipment. The audio equipment can purchase suitable products according to actual conditions. The battery pack 500 is used to supply power to the sound card device, reverb device, and audio device. As can be seen from the above, the battery pack 500 is installed in the first box 100, and the sound card device, reverb device, and audio device are installed in the second box 200. When the box is closed, the battery pack 500 will cut off the power supply to the sound card device, reverb device, and audio device. Only when the box is opened before playing will the battery pack 500 supply power to the sound card device, reverb device, and audio device to improve the safety of the equipment.

[0025] The portable accordion performance device of this embodiment rationally plans the internal space of the performance box, and installs an accordion, a sound collection component, a battery pack 500, a sound card device, a reverberation device and an audio device in the performance box. The sound collection component is used to collect human voice and piano sound, the sound card device optimizes and adjusts the human voice, and the reverberation device mixes and optimizes the optimized human voice and piano sound and outputs them through the audio device, thereby avoiding the human voice being covered by the piano sound, reducing the sense of separation between the human voice and the piano sound during performance, and improving the ensemble effect; by carrying the performance box of this embodiment, a high-level performance can be completed outdoors at any time, which improves portability.

[0026] In the examples of this application, refer to Figure 2 As shown, the second storage area 102 is located at the center of the first box 100, and there is a storage area in the second storage area 102 extending toward the first storage area 101, and the storage area is used for inserting the key part of the accordion body; the first partition 110 is preferably made of rubber, plastic or other materials to avoid damage to the accordion body.

[0027] Furthermore, it is preferred that the side walls of the second storage area 102 and / or the side walls of the third storage area 103 are installed with a buffer layer, which can be made of sponge, foam, rubber and other materials; the side walls of the second storage area 102 are installed with a buffer layer to protect the accordion body, and the side walls of the third storage area 103 are installed with a buffer layer to protect the battery pack 500.

[0028] In the examples of this application, refer to Figure 4 As shown, in the vertical direction, the third storage area 103 is arranged at the bottom end of the first box 100, that is, the battery pack 500 is installed at the bottom of the first box 100. The battery pack 500 itself is relatively heavy, and arranging it at the bottom of the first box 100 facilitates the distribution of the weight of the first box 100, thereby preventing the first box 100 from being top-heavy when carried. At the same time, installing the battery pack 500 at the bottom of the first box 100 can also reduce its shaking during transportation, thereby improving safety.

[0029] In order to further protect the battery pack 500, an abutment plate 140 is installed in the third storage area 103 of the first box 100 of this embodiment. The battery pack 500 is placed on the abutment plate 140. The abutment plate 140 is connected to the side wall of the third storage area 103 through an elastic member 141. The elastic member 141 can be a spring or other structure. Figure 2 、 Figure 3 As shown, the abutment plate 140 is disposed at the bottom of the third receiving area 103 . Alternatively, the abutment plate 140 and the elastic member 141 may be installed on the side wall and / or bottom wall of the third receiving area 103 according to actual conditions.

[0030] In the embodiment of the present application, the abutment plate 140 is installed with a first limiting structure 150, and the second partition plate 120 is installed with a second limiting structure 160. The second limiting structure 160 passes through the second partition plate 120 and is inserted into the first box 100 to pre-position the battery pack 500. The first limiting structure 150 is used to limit the horizontal sliding of the battery pack 500. Figure 4 、 Figure 6 As shown, the first limiting structure 150 includes a rotating rod 151 and a limiting plate 152. The rotating rod 151 is rotatably mounted on the abutment plate 140 around its own axis. The rotation of the rotating rod 151 can drive the limiting plate 152 to rotate so as to be inserted into the battery pack 500. A strip hole is provided on one side of the battery pack 500 for the rotating rod 151 to rotate into. Figure 3 As shown, the first limiting structure 150 and the second limiting structure 160 are respectively limited on both sides of the width direction of the battery pack 500, ensuring the stability of the battery pack 500, thereby improving the safety of the device.

[0031] In order to prevent the battery pack 500 from thermal runaway, in the embodiment of the present application, a side panel 170 is provided on at least one side of the third storage area 103 along the width direction of the first box 100, and a cooling fan 171 is installed on the side panel 170; the first box 100 is provided with a through hole 180 that passes through the first box 100, and the cooling fan 171 is provided corresponding to the through hole 180. Figure 4 As shown, side panels 170 are preferably provided on both sides of the third storage area 103 along the width direction of the first box 100, and cooling fans 171 are installed on both side panels 170. The side panels 170 are fixedly connected to the second partition 120 and the first box 100, and the battery pack 500 directly supplies power to the cooling fans 171. A filter 181 is preferably installed in the through-hole 180, and during transportation, the through-hole 180 is preferably plugged with a plug to prevent debris from entering the through-hole 180 and damaging the filter 181 or the equipment in the first box 100.

[0032] It is conceivable that the battery pack 500 is installed between the two side panels 170, and referring to Figure 4 As shown, there is a gap between the side panel 170 and the side wall of the first box 100, that is, the battery pack 500 is not in direct contact with the first box 100, thereby ensuring that there will be no safety problems with the battery pack 500 when the first box 100 is subjected to external impact, thereby improving the safety of the battery pack 500.

[0033] Furthermore, the cooling fan 171 may also be directly installed in the through hole 180 .

[0034] In the examples of this application, refer to Figure 2 、 Figure 5 As shown, the third partition 210 includes a third horizontal plate 211 and a third vertical plate 212, which are perpendicular to each other. The fourth partition 220 includes a fourth horizontal plate 221 and a fourth vertical plate 222, which are perpendicular to each other. The reverberation device is installed between the third horizontal plate 211 and the fourth horizontal plate 221, and is connected to the third vertical plate 212 and the fourth vertical plate 222. Specifically, the reverberation device is connected to the third vertical plate 212 and the fourth vertical plate 222 via fasteners such as bolts. The audio cable enters the fifth storage area 202 through the gap between the third vertical plate 212 and the fourth vertical plate 222.

[0035] Furthermore, a first mounting plate 240 is provided within the fourth storage area 201. The sound card device is connected to the first mounting plate 240 and the third partition 210 via bolts and other fasteners. The audio cable enters the fourth storage area 201 through the gap between the first mounting plate 240 and the third partition 210. A second mounting plate 250 is provided within the sixth storage area 203. The audio device is connected to the second mounting plate 250 and the fourth partition 220 via bolts and other fasteners. The audio cable enters the sixth storage area 203 through the gap between the second mounting plate 250 and the fourth partition 220.

[0036] In the examples of this application, refer to Figure 1 、 Figure 2 As shown, the second box body is provided with an inspection port, which is connected to the seventh storage area 204; the inspection port is installed with an inspection door 260, and the inspection door 260 is provided with a mounting bracket 261 protruding from its surface, and the mounting bracket 261 can be used to install structures such as microphone stands. As can be seen from the above, the sound card equipment, reverberation equipment, and audio equipment are all connected to the second box 200 through fasteners such as bolts. If a fault occurs or the audio line jack needs to be changed, the sound card equipment, reverberation equipment, and audio equipment are difficult to move. The provision of the inspection door 260 can facilitate inspection or change of the audio line jack. Figure 1 As shown, the mounting bracket 261 is mounted on the access door 260 .

[0037] Further, refer to Figure 1 As shown, a rod assembly 190 protruding from the surface of the first box 100 is provided on the side facing away from the second box 200. The thickness of the rod assembly 190 is equal to the thickness of the mounting bracket 261. Specifically, when performing outdoors, the box body needs to be opened, that is, the first box 100 and the second box 200 need to be placed on the ground. The rod assembly 190 protruding from the surface of the first box 100 can prevent the first box 100 from directly contacting the ground, thereby protecting the first box 100. Similarly, the mounting bracket 261 can prevent the second box 200 from directly contacting the ground, thereby protecting the second box 200. The thickness of the mounting bracket 261 is preferably equal to the thickness of the rod assembly 190 to ensure that the first box 100 and the second box 200 are at equal height when placed on the ground, thereby improving stability.

[0038] The mounting bracket 261 can also be configured to be hinged to the second box 200, so that when the box body is opened and the second box 200 is placed on the ground, the mounting bracket 261 can be used to adjust the distance between the second box 200 and the ground.

[0039] In the examples of this application, refer to Figure 4As shown, the first box 100 is installed with a first cover plate 300, and the first cover plate 300 is hinged at the opening of the first box 100. A first buffer pad 310 is installed on the side of the first cover plate 300 facing the second box 200. The first buffer pad 310 can be made of flexible materials such as sponge and rubber. The first buffer pad 310 is installed on the side of the first cover plate 300 away from the first box 100. A first hinge seat is provided on the first side of the first box 100 in the width direction, and a first baffle is provided on the second side in the width direction. The first side of the first cover plate 300 in the width direction is hinged to the first hinge seat, and the first baffle is used to limit the rotation of the first cover plate 300. The first cover plate 300 is installed in the first box 100. When the first box 100 is in Figure 1 、 Figure 2 In the vertical position shown, the first cover 300 can prevent the items in the first box 100 from falling out.

[0040] Correspondingly, the second box 200 is preferably installed with a second cover plate 400, which is hinged at the opening of the second box 200. A second buffer pad 410 is installed on the side of the second cover plate 400 facing the first box 100. The second buffer pad 410 is installed on the side of the second cover plate 400 facing away from the second box 200. A second hinge seat is provided on the first side of the width direction of the second box 200, and a second baffle is provided on the second side of the width direction. The first side of the width direction of the second cover plate 400 is hinged to the second hinge seat, and the second baffle is used to limit the rotation of the second cover plate 400. When the second box 200 is in Figure 1 、 Figure 2 In the vertical position shown, the second cover 400 can prevent the items in the second box 200 from falling out.

[0041] It should be understood that it is preferred to install the first cover plate 300 and the second cover plate 400 at the same time. When the box body of this embodiment is in a closed state, as shown in FIG. Figure 2 As shown, the first buffer pad 310 installed on the first cover plate 300 will abut against the second buffer pad 410 installed on the second cover plate 400, thereby further ensuring the stability and safety of the items inside the box.

[0042] In the description of this specification, the reference terms "one embodiment", "some embodiments", "examples", "specific examples" or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine different embodiments or examples described in this specification.

[0043] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the scope of the present invention.

Claims

1. A portable accordion playing device, characterized in that: include: The first box defines a first storage space, wherein a first partition and a second partition are installed in the first storage space to vertically divide the first storage space into a first storage area, a second storage area, and a third storage area, wherein the second storage area is located between the first storage area and the third storage area; a second box hingedly connected to the first box; the second box defines a second storage space, and a third partition and a fourth partition are installed in the second storage space to vertically divide the second storage space into a fourth storage area, a fifth storage area, a sixth storage area, and a seventh storage area, wherein the fourth storage area, the fifth storage area, and the sixth storage area are all connected to the seventh storage area; The first partition is provided corresponding to the third partition, and the second partition is provided corresponding to the fourth partition; a first universal wheel set is installed at the bottom of the first box, and a second universal wheel set is installed at the bottom of the second box; a sound collecting component, stored in the first storage area; The accordion body is stored in the second storage area; a battery pack, stored in the third storage area; A sound card device is stored in the fourth storage area; Reverberation equipment, stored in the fifth storage area; Audio equipment, stored in the sixth storage area; The audio cable is stored in the seventh storage area; The sound card device, the reverberation device, and the audio device are connected by a plurality of audio cables; the sound collecting component is used to collect human voice and piano sound, the sound card device is used to optimize and adjust the human voice, the reverberation device mixes the optimized and adjusted human voice and piano sound and outputs them through the audio device; the battery pack is used to supply power to the sound card device, the reverberation device, and the audio device.

2. The portable accordion playing device according to claim 1, characterized in that: In the vertical direction, the third storage area is arranged at the bottom end of the first box; An abutment plate is installed in the third storage area, the battery pack is placed on the abutment plate, and the abutment plate is connected to the side wall of the third storage area through an elastic member.

3. The portable accordion playing device according to claim 2, characterized in that: The abutment plate is installed with a first limiting structure, and the second partition is installed with a second limiting structure. The second limiting structure passes through the second partition and is inserted into the first box to pre-position the battery pack. The first limiting structure is used to limit the horizontal sliding of the battery pack.

4. The portable accordion playing device according to claim 3, characterized in that: The first limiting structure includes a rotating rod and a limiting piece. The rotating rod is rotatably mounted on the abutting plate around its own axis. The rotation of the rotating rod can drive the limiting piece to rotate so as to be inserted into the battery pack.

5. The portable accordion playing device according to claim 1, characterized in that: Along the width direction of the first box, at least one side of the third storage area is provided with a side panel, and a cooling fan is installed on the side panel; The first box is provided with a through hole penetrating the first box, and the heat dissipation fan is arranged corresponding to the through hole.

6. The portable accordion playing device according to claim 1, characterized in that: The third partition includes a third horizontal plate and a third vertical plate perpendicular to each other, and the fourth partition includes a fourth horizontal plate and a fourth vertical plate perpendicular to each other; The reverberation device is installed between the third horizontal plate and the fourth horizontal plate, and is connected to the third vertical plate and the fourth vertical plate.

7. The portable accordion playing device according to claim 1, characterized in that: A first mounting plate is provided in the fourth storage area, and the sound card device is connected to the first mounting plate and the third partition plate; A second mounting plate is provided in the sixth storage area, and the audio equipment is connected to the second mounting plate and the fourth partition plate.

8. The portable accordion playing device according to claim 1, characterized in that: The second box body is provided with an inspection port, the inspection port being connected to the seventh storage area; the inspection port is provided with an inspection door, the inspection door is provided with a mounting bracket protruding from its surface, and the mounting bracket can be used to install a microphone stand; A pull rod assembly protruding from a surface of the first box is provided on a side of the first box facing away from the second box, and a thickness of the pull rod assembly is equal to a thickness of the mounting frame.

9. The portable accordion playing device according to claim 1, characterized in that: The first box is provided with a first cover plate, the first cover plate is hinged at the opening of the first box, and a first buffer pad is provided on a side of the first cover plate facing the second box; And / or, the second box is installed with a second cover plate, the second cover plate is hinged at the opening of the second box, and a second buffer pad is installed on the side of the second cover plate facing the first box.

10. The portable accordion playing device according to claim 1, characterized in that: A buffer layer is installed on the side wall of the second receiving area and / or the side wall of the third receiving area.

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