A protective device for storing a power amplifier

Abstract

The present application discloses a protective device for storing a power amplifier, and relates to the technical field of power amplifier storage technology. The protective device for storing a power amplifier in the present application includes a cabinet frame, and a plurality of mounting slots are provided on the cabinet frame. A rotating column is rotatably provided in each mounting slot, and a placement slot for placing the power amplifier is provided in the rotating column. A spacer block is provided between two adjacent mounting slots, and a horizontal extrusion assembly is embedded in the spacer block. The horizontal extrusion assembly includes a push block and two extrusion blocks. The push block is embedded between the two extrusion blocks along the length direction of the extrusion block, and the two side walls of the push block are respectively slidably connected to the corresponding extrusion blocks. When the push block moves from the two end positions of the cavity to the middle of the cavity, the two extrusion blocks can respectively move toward the two sides of the spacer block and abut against the corresponding rotating columns. The present application can improve the stability of the power amplifier during storage.

Description

Technical Field

[0001] The present application relates to the technical field of power amplifier storage technology, and in particular to a protective device for storing a power amplifier. Background Art

[0002] A power amplifier is an amplifier that can generate maximum power output to drive a load (such as a speaker) under given distortion conditions. A power amplifier is one of the most basic devices in an audio system, commonly known as a "loudspeaker". Its task is to amplify the weak electrical signal from the signal source (from the mixer in a professional audio system) to drive the speaker to produce sound.

[0003] Normally, the power amplifier needs to be placed on a safe, stable, and non-falling table or cabinet to avoid damage or falling to the ground. At the same time, if the storage environment is dusty, it will cause poor heat dissipation of the equipment and burn out components. Static electricity will interfere with the operation and cause the operation status to change, resulting in machine failure.

[0004] Power amplifiers need to be temporarily stored when not in use. Currently, when power amplifiers are temporarily stored, they are usually placed on ordinary cabinets. However, due to the need for frequent access, the overall stability of the power amplifiers during storage is relatively low, and they are easily moved and collapsed under the action of external forces. Summary of the invention

[0005] In order to improve the stability of the power amplifier during storage and protect the power amplifier, the present application provides a protection device for storing the power amplifier.

[0006] The present application provides a protective device for storing a power amplifier, which adopts the following technical solution:

[0007] A protective device for storing a power amplifier, comprising a cabinet frame, the cabinet frame is provided with a plurality of mounting slots, a rotating column is rotatably arranged in each mounting slot, an opening is provided on one side of the rotating column, a placement slot for placing the power amplifier is provided in the rotating column, and the placement slot is communicated with the opening;

[0008] A spacer block is provided between two adjacent mounting grooves, a horizontal extrusion assembly is embedded in the spacer block, and the horizontal extrusion assembly includes a push block and two extrusion blocks, the push block is embedded between the two extrusion blocks along the length direction of the extrusion block, and the two side walls of the push block are respectively slidably connected with the corresponding extrusion blocks;

[0009] When the push blocks move from the two end positions of the cavity to the middle of the cavity, the two extrusion blocks can respectively move toward the two sides of the spacing block and abut against the corresponding rotating columns.

[0010] By adopting the above technical solution, two adjacent rotating columns are separated by a spacer block. When the power amplifier is not placed, the opening of the rotating column faces outward. When the operator places the power amplifier into the placement slot, the rotating column is rotated to one side so that the opening faces the direction of the spacer block. Then, the pushing block is pushed toward the middle of the cavity, so that the two squeezing blocks move toward the rotating columns on both sides of the spacer block, thereby squeezing and fixing the corresponding rotating columns.

[0011] Therefore, on the one hand, the power amplifier in the rotating column is in a relatively sealed state after installation through the rotational sealing method, reducing the influence of external dust and other impurities on the material of the power amplifier; on the other hand, after the rotating column is rotated, the horizontal extrusion assembly in the spacer block is used to squeeze and fix two adjacent rotating columns at the same time, so that the rotating columns are not easy to return to their original position or shake around under the action of external force, which is beneficial to improve the stability of the power amplifier during storage.

[0012] Optionally, the width of the push block gradually decreases from the end of the extrusion block to the middle of the extrusion block, and the side walls of the two extrusion blocks close to the push block are provided with wedge blocks that can be fitted with the side walls of the push block.

[0013] By adopting the above technical solution, the side wall of the push block is in an inclined wedge shape, and the wedge block on the extrusion block can fit with the side wall of the push block. When the push block is pushed into the cavity along the area between the two extrusion blocks, the width of the push block gradually increases, so the two extrusion blocks move away from each other, thereby extruding the corresponding rotating column. By operating the push block, the two rotating columns can be squeezed and fixed at the same time, which is convenient for operation.

[0014] Optionally, each rotating column has an annular protrusion at both ends near the opening, and the annular protrusion protrudes outward from the side wall of the rotating column in a horizontal direction and can be embedded in the spacer block;

[0015] The extrusion block comprises a connecting section and an arc section, one end of the connecting section is connected to the inner side wall of the spacer block, and the other end is connected to the arc section, and the side wall of the arc section can fit with the side wall of the annular protrusion.

[0016] By adopting the above technical solution, the annular protrusion can be embedded in the spacer block after the rotating column rotates. When the extrusion block moves toward the corresponding rotating column, the side wall of the arc segment fits with the outer wall of the annular protrusion, thereby increasing the effective area of ​​the extrusion block and the rotating column, making the pushing process more labor-saving.

[0017] Optionally, a second elastic reset member is embedded between the extrusion block and the inner side wall of the spacer block, and one end of the second elastic reset member is connected to the connecting section, and the other end is connected to the inner side wall of the spacer block.

[0018] By adopting the above technical solution, when the power amplifier needs to be taken out for use, when the push block is pulled out, the second elastic reset member can provide a driving force, so that the extrusion block returns to the middle of the cavity from the position of the spacing blocks on both sides, thereby improving the simplicity of operation. At the same time, when the extrusion block squeezes the rotating column, the second elastic reset member can provide a certain buffer force to prevent the power amplifier in the rotating column from being damaged by excessive squeezing force.

[0019] Optionally, vertical clamping mechanisms are also provided on both sides of the cabinet frame, and the vertical clamping mechanisms include a clamping assembly and a fixing assembly, and the clamping assembly includes a moving rod and a clamping plate, and the moving rod is arranged on both sides of the cabinet frame along the height direction of the cabinet frame, and the clamping plate is arranged on the upper end of the rotating column along the horizontal direction, and vertical grooves are opened on both sides of the cabinet frame, and the vertical grooves are opened along the height direction of the cabinet frame, and the two ends of the clamping plate respectively pass through the vertical grooves and are fixedly connected to the corresponding moving rods, and the fixing assembly is arranged at the upper and lower ends of the moving rod.

[0020] By adopting the above technical solution, the moving rod can drive the clamping plate to move along the height direction of the cabinet frame. After the horizontal extrusion assembly clamps and fixes the rotating column in the horizontal direction, the position of the moving rod is adjusted and the moving rod is fixed by the fixing assembly so that the clamping plate is close to the upper end of the rotating column, so that the rotating column is squeezed and fixed in the vertical direction. Therefore, the rotating column has strong stability in the vertical direction.

[0021] Optionally, the fixing assembly includes a mounting sleeve, a clamping shaft and a rotating shaft, the mounting sleeve is fixed on one side of the cabinet frame, the clamping shaft is fixed on the bottom of the mounting sleeve, and the clamping shaft is made of an elastic material;

[0022] The rotating shaft is located at the upper end of the clamping shaft and is threadedly connected to the inner wall of the mounting sleeve. The inner wall of the lower end of the rotating shaft abuts against the outer wall of the upper end of the clamping shaft. The inner diameter of the clamping shaft gradually decreases from the end close to the rotating shaft to the end away from the rotating shaft. One end of the moving rod passes through the rotating shaft and extends into the clamping shaft.

[0023] By adopting the above technical solution, when the rotating shaft is rotated, the rotating shaft moves downward along the axis of the mounting sleeve. When it moves down to the position of the clamping shaft, the lower end of the rotating shaft clamps the upper end of the clamping shaft. When it continues to rotate downward, since the clamping shaft is wedge-shaped as a whole and is made of elastic material, the rotating shaft can push the clamping shaft inward to tighten, thereby fixing the end of the moving rod in the clamping shaft and preventing it from being pulled out under the action of external force and affecting the fixing effect of the clamping plate.

[0024] Optionally, the clamping shaft includes a plurality of clamping sheets, and the plurality of clamping sheets surround a placement cavity for inserting the moving rod;

[0025] Each clamping plate has a first guide slope at the upper end, and the first guide slope extends obliquely from top to bottom toward the circumferential side from the direction close to the placement cavity. The lower end of the rotating shaft has a second guide slope that can fit with the first guide slope, and the second guide slope extends from the middle of the rotating shaft to both sides from top to bottom.

[0026] By adopting the above technical solution, the first guide bevel and the second guide bevel extend from the center to the surrounding direction and from top to bottom, which is conducive to the rotating shaft moving down to the outer wall of the upper end of the clamping shaft and fitting with the upper end of the clamping shaft. After the two fit each other, when the rotating shaft continues to be rotated to move downward, the first guide bevel and the second guide bevel are used as contact surfaces for the extrusion force, so that the rotating shaft and the clamping shaft have a larger contact area, thereby improving the clamping effect.

[0027] Optionally, a first elastic reset member is embedded in each of the mounting sleeves, one end of the first elastic reset member is connected to the bottom of the mounting sleeve, and the other end is abutted against the end of the moving rod.

[0028] By adopting the above technical solution, when the clamping shaft is loosened, the first elastic reset member can cause the moving rod to reset in the vertical upward direction, so that the clamping plate leaves the upper end of the rotating column, making it convenient to remove the power amplifier in the rotating column.

[0029] Optionally, a limiting assembly is provided on the outer wall of the moving rod, and the limiting assembly includes a limiting sleeve and a limiting plate. The limiting sleeve is provided on the outer side of the corresponding moving rod and is rotatably connected to the moving rod. One end of the limiting plate is connected to the limiting sleeve, and the other end extends toward the side wall of the cabinet frame. A limiting groove for inserting the limiting plate is provided on the side wall of the cabinet frame.

[0030] By adopting the above technical solution, when the power amplifier needs to be stored or taken out, the moving rod is moved upward so that the clamping plate leaves the upper end of the rotating column, the limit sleeve can be rotated, and the limit plate can be inserted into the corresponding limit groove, so that the moving rod can be temporarily limited in the vertical direction, thereby eliminating the need for the operator to support the moving rod with hands.

[0031] Optionally, a plurality of first elastic extrusion portions are provided at the bottom of each of the pressing plates, and each of the first elastic extrusion portions is arranged toward the direction of the corresponding placement groove.

[0032] By adopting the above technical solution, when the movable rod is adjusted so that the pressing plate presses the rotating column, the first elastic pressing portion directly acts on the power amplifier in the placement slot, which can squeeze and fix the power amplifier and provide a certain buffering force.

[0033] In summary, the present application includes at least one of the following beneficial effects:

[0034] 1. The power amplifier in the rotating column is in a relatively sealed state after installation by means of rotary sealing, reducing the influence of external dust and other impurities on the material of the power amplifier.

[0035] 2. Use the horizontal extrusion assembly in the spacer block to squeeze and fix two adjacent rotating columns at the same time, so that the rotating columns are not easy to return or shake around under the action of external force, which is beneficial to improve the stability of the power amplifier during storage.

[0036] 3. By adjusting the position of the moving rod and fixing the moving rod through the fixing assembly, the pressing plate is closely attached to the upper end of the rotating column, so that the rotating column is squeezed and fixed in the vertical direction. Thus, the rotating column has strong stability in the vertical direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the overall structure when the power amplifier storage protection device in the embodiment of the present application is turned on.

[0038] Figure 2 It is a schematic diagram of the overall structure when the protective device for storing the power amplifier in an embodiment of the present application is closed.

[0039] Figure 3 It is a cross-sectional view of the fixing component in the embodiment of the present application.

[0040] Figure 4 It is a top view of the horizontal extrusion assembly in an embodiment of the present application.

[0041] Figure 5 It is a schematic diagram of the exploded structure of the horizontal extrusion assembly in the embodiment of the present application.

[0042] Description of reference numerals: 1, cabinet frame; 11, mounting groove; 12, spacer block; 121, cavity; 122, accommodating groove; 123, second elastic extrusion portion; 124, guide groove; 13, vertical groove; 14, limit groove; 2, rotating column; 21, placement groove; 22, opening; 23, annular protrusion; 3, vertical clamping mechanism; 31, fixing assembly; 311, mounting sleeve; 3111, fixing groove; 3112, embedding groove; 312, clamping shaft; 3121, clamping sheet; 3122, placement cavity; 3123, first guiding inclined surface; 313, rotating shaft; 3131, threaded section; 3132, knob section; 3133, second guiding inclined surface; 3134, through groove; 314, second elastic reset member; 32, clamping assembly; 321, moving rod; 322, clamping plate; 323, first elastic extrusion portion; 33, limiting assembly; 331, limiting sleeve; 332, limiting plate; 4, horizontal extrusion assembly; 41, push block; 42, extrusion block; 421, arc section; 4211, wedge block; 422, connecting section; 43, first elastic reset member; 44, guide block. DETAILED DESCRIPTION

[0043] The following is combined with Figure 1 -Attached Figure 5 This application is described in further detail.

[0044] The present application discloses a protective device for storing a power amplifier, referring to Figure 1 and Figure 2 The protective device for storing a power amplifier includes a cabinet frame 1, a vertical clamping mechanism 3 and a horizontal extrusion assembly 4. A plurality of mounting grooves 11 are provided on the cabinet frame 1. A rotating column 2 for placing a power amplifier is provided in each mounting groove 11. The number of vertical clamping mechanisms 3 and horizontal extrusion assemblies 4 are both in a plurality of groups. Each group of vertical clamping mechanisms 3 extends from both sides of the cabinet frame 1 to the middle along the length direction of the cabinet frame 1. Each group of horizontal extrusion assemblies 4 is arranged between two adjacent mounting grooves 11 in the horizontal direction.

[0045] Reference Figure 1 , the rotating column 2 is rotatably arranged in the corresponding mounting groove 11. Specifically, in the present embodiment, the number of mounting grooves 11 and rotating columns 2 are both four groups, and the four groups of rotating columns 2 are distributed in the upper and lower layers of the cabinet frame 1 along the height direction, and two rotating columns 2 are arranged on each layer. The rotating column 2 is cylindrical, and the rotating column 2 is made of elastic material, specifically one of rubber or sponge. Both sides of the upper end of each rotating column 2 have annular protrusions 23. A placement groove 21 for placing a power amplifier is provided in the rotating column 2, and an opening 22 is provided on one side of the rotating column 2, and the opening 22 is connected to the placement groove 21.

[0046] Reference Figure 1 and Figure 3The vertical clamping mechanism 3 includes a fixing assembly 31 and a clamping assembly 32. The fixing assembly 31 includes a mounting sleeve 311, a clamping shaft 312 and a rotating shaft 313. The mounting sleeve 311 is fixed on one side of the cabinet frame 1. A fixing groove 3111 is provided in the mounting sleeve 311. The clamping shaft 312 is embedded in the fixing groove 3111. The bottom wall of the clamping shaft 312 is fixedly connected to the mounting sleeve 311. The area below the clamping shaft 312 in the mounting sleeve 311 is an embedding groove 3112. The embedding groove 3112 is embedded with a first elastic reset member 43. The first elastic reset member 43 is specifically a spring. One end of the first elastic reset member 43 is connected to the bottom of the clamping shaft 312. Specifically, the clamping shaft 312 includes a plurality of clamping pieces 3121, which are made of elastic material, are arranged obliquely, and are surrounded by a truncated cone shape with a gradually decreasing inner diameter from top to bottom, and a placement cavity 3122 is formed in the middle of the plurality of clamping pieces 3121. Furthermore, each clamping piece 3121 has a first guiding inclined surface 3123 at the upper end, and the first guiding inclined surface 3123 extends obliquely from the direction close to the placement cavity 3122 to the peripheral side from top to bottom.

[0047] Reference Figure 3 The rotating shaft 313 is located at the upper end of the clamping shaft 312, and the inner side wall of the lower end of the rotating shaft 313 abuts against the outer side wall of the upper end of the clamping shaft 312. The rotating shaft 313 includes a threaded section 3131 and a knob section 3132. The threaded section 3131 extends into the fixing groove 3111 and is threadedly connected to the inner side wall of the mounting sleeve 311. The knob section 3132 is located at the outer side of the upper end of the mounting sleeve 311. Further, the lower end of the threaded section 3131 has a second guiding inclined surface 3133, and the second guiding inclined surface 3133 extends from the lower middle part of the threaded section 3131 to both sides from top to bottom. The side of the second guiding inclined surface 3133 facing the clamping shaft 312 can be fitted with the first guiding inclined surface 3123 at the upper end of the corresponding clamping sheet 3121. When the knob section 3132 is rotated to move the thread section 3131 into the fixing groove 3111 , the second guide slope 3133 moves along the extension direction of the first guide slope 3123 , thereby tightening the plurality of clamping pieces 3121 toward the placement cavity 3122 .

[0048] Reference Figure 2 The clamping assembly 32 includes a moving rod 321 and a clamping plate 322. The moving rod 321 is arranged along the height direction of the cabinet frame 1. A through groove 3134 is opened in the rotating shaft 313. The moving rod 321 is inserted into the embedding groove 3112 along the through groove 3134 and the placement cavity 3122. When the moving rod 321 is inserted into the embedding groove 3112, the knob section 3132 is rotated to fix the lower end of the moving rod 321 and abut against the first elastic reset member 43.

[0049] Reference Figure 2, the number of moving rods 321 is four groups, and the four groups of moving rods 321 are distributed in pairs on both sides of the cabinet frame 1. Correspondingly, the number of fixed components 31 is eight groups, wherein each moving rod 321 corresponds to two groups of fixed components 31, and the two groups of fixed components 31 are respectively arranged at the upper and lower ends of the corresponding moving rod 321, and the upper end and the lower end of each moving rod 321 are both penetrated into the corresponding placement cavity 3122. The clamping plate 322 is arranged at the upper ends of the two rotating columns 2 along the horizontal direction, and the two ends of the clamping plate 322 pass through the side walls of the cabinet frame 1 and are fixedly connected with the corresponding moving rod 321. Specifically, a vertical groove 13 for the clamping plate 322 to pass through is provided on the cabinet frame 1, and the vertical groove 13 is provided along the height direction of the cabinet frame 1. The moving rod 321 is moved in the vertical direction, and the clamping plate 322 can move up and down along the direction of the vertical groove 13.

[0050] Specifically, refer to Figure 2 There are two clamping plates 322, two clamping plates 322 are arranged on the upper side of each layer of rotating columns 2, and the clamping plate 322 located between the upper and lower layers of rotating columns 2 is fixedly connected to the upper layer of rotating columns 2, that is, the upper and lower layers of rotating columns 2 are separated by the clamping plates 322.

[0051] Reference Figure 2 In order to further squeeze and fix the power amplifier in the placement slot 21 in the vertical direction, each pressing plate 322 is provided with a plurality of first elastic squeezing parts 323 in the placement slot 21 facing downward, and the first elastic squeezing parts 323 are provided corresponding to the rotating column 2. Specifically, the first elastic squeezing parts 323 are made of elastic materials such as rubber or sponge.

[0052] Reference Figure 2 In order to limit the movement of the moving rod 321, a limiting assembly 33 is provided on the outer wall of each moving rod 321. The limiting assembly 33 includes a limiting sleeve 331 and a limiting plate 332. The limiting sleeve 331 is sleeved on the outer side of the corresponding moving rod 321. One end of the limiting plate 332 is connected to the outer wall of the limiting sleeve 331, and the other end extends to the side wall of the cabinet frame 1. A limiting groove 14 for inserting the limiting plate 332 is provided on the side wall of the cabinet frame 1. When the moving rod 321 moves to a specified position in the vertical direction, the limiting sleeve 331 is rotated so that the limiting plate 332 is inserted into the limiting groove 14, so that the moving rod 321 can be limited in the vertical direction. The number of limiting assemblies 33 is adapted to the number of moving rods 321. In this embodiment, the number of limiting assemblies 33 is specifically four groups.

[0053] Reference Figure 4 and Figure 5There is a spacer block 12 between the two rotating columns 2 of each layer, and each spacer block 12 is provided with a cavity 121 at both ends, and each group of horizontal extrusion components 4 is arranged in the corresponding cavity 121. Receiving grooves 122 are provided on both sides of the spacer block 12 near the corresponding rotating column 2, and the receiving grooves 122 are used to accommodate the corresponding annular protrusions 23, and the receiving grooves 122 are connected with the cavity 121. The horizontal extrusion component 4 includes a push block 41 and two extrusion blocks 42, and the two extrusion blocks 42 are embedded in the cavity 121 near the side wall of the spacer block 12 along the width direction of the cavity 121. The number of the push blocks 41 is specifically two, and the two push blocks 41 are also symmetrically embedded between the two extrusion blocks 42 along the width direction of the cavity 121, and the two side walls of each push block 41 are slidably connected with the corresponding extrusion block 42 respectively.

[0054] Specifically, refer to Figure 4 and Figure 5 The two extrusion blocks 42 are axially symmetrically distributed with the center line of the push block 41 as the symmetry axis. The extrusion block 42 includes an arc segment 421 and a connecting segment 422, wherein there are two connecting segments 422, and the two connecting segments 422 are connected to the two ends of the corresponding arc segment 421, and each connecting segment 422 is connected to the inner side wall of the spacer block 12. The arc segment 421 is recessed from one side of the rotating column 2 toward the cavity 121, and specifically, the arc surface can fit with the outer side wall of the annular protrusion 23.

[0055] Accordingly, refer to Figure 4 and Figure 5 Each push block 41 is wedge-shaped as a whole. Specifically, the width of each push block 41 gradually decreases from the direction close to the connecting section 422 to the direction close to the middle of the arc section 421. Accordingly, the side walls of the two extrusion blocks 42 close to the push block 41 are provided with wedge-shaped blocks 4211 that can be fitted with the side walls of the push block 41. As the push block 41 is continuously pushed in, the two extrusion blocks 42 move toward the direction close to the rotating columns 2 on both sides, contact and squeeze the annular protrusions 23 on the upper ends of the corresponding rotating columns 2.

[0056] Further, see Figure 4 In order to achieve reset after the push block 41 is pulled out, a second elastic reset member 314 is embedded between each connecting section 422 and the inner side wall of the cabinet frame 1, and the two ends of the second elastic reset member 314 are respectively fixedly connected to the side wall of the cabinet frame 1 and the connecting section 422. Specifically, the second elastic reset member 314 is a spring.

[0057] Further, see Figure 5In order to limit the moving direction of the extrusion block 42, a guide block 44 is fixedly provided on the upper end of the extrusion block 42, and a guide groove 124 is provided on the inner top wall of the spacing block 12, and the guide block 44 is slidably arranged in the guide groove 124. When the two push blocks 41 are pushed toward each other, the extrusion block 42 can move toward the rotating columns 2 on both sides along the direction of the corresponding guide groove 124.

[0058] Further, see Figure 2 A second elastic extrusion portion 123 is provided on both sides of each spacer block 12, and the second elastic extrusion portion 123 protrudes toward the direction of the rotating column 2 on one side. When the rotating column 2 rotates until the opening 22 is toward the spacer block 12, the second elastic extrusion portion 123 abuts against the power amplifier.

[0059] The implementation principle of a protective device for storing a power amplifier in an embodiment of the present application is as follows: after placing the power amplifier in the placement slot 21, the rotating column 2 is rotated so that the opening 22 is rotated to a direction toward the second elastic extrusion portion 123, and then the push block 41 is slid along the width direction of the spacer block 12 and inserted between the two extrusion blocks 42, and the extrusion blocks 42 move accordingly toward the direction of the rotating columns 2 on both sides, so that the rotating column 2 is clamped and fixed by the extrusion blocks 42.

[0060] Finally, the moving rod 321 is inserted into the corresponding fixing groove 3111, and the knob sections 3132 at both ends of the moving rod 321 are rotated to fix the moving rod 321 in the fixing groove 3111, so that the clamping plate 322 is close to the upper end of the rotating column 2, thereby clamping and fixing the rotating column 2 in the vertical direction.

[0061] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A protective device for storing a power amplifier, characterized in that: The cabinet frame (1) comprises a plurality of mounting slots (11) formed on the cabinet frame (1), a rotating column (2) being rotatably arranged in each mounting slot (11), an opening (22) being formed on one side of the rotating column (2), a placement slot (21) for placing a power amplifier being formed in the rotating column (2), and the placement slot (21) being communicated with the opening (22); A spacer block (12) is provided between two adjacent mounting grooves (11), a horizontal extrusion assembly (4) is embedded in the spacer block (12), the horizontal extrusion assembly (4) comprises a push block (41) and two extrusion blocks (42), the push block (41) is embedded between the two extrusion blocks (42) along the length direction of the extrusion blocks (42), and two side walls of the push block (41) are respectively slidably connected to the corresponding extrusion blocks (42); When the push block (41) moves from the outside of the spacing block (12) to the inside of the spacing block (12), the two squeezing blocks (42) can respectively move toward the two sides of the spacing block (12) and abut against the corresponding rotating columns (2).

2. A protective device for storing a power amplifier according to claim 1, characterized in that: The width of the push block (41) gradually decreases from the end of the extrusion block (42) toward the middle of the extrusion block (42), and the side walls of the two extrusion blocks (42) close to the push block (41) are provided with wedge-shaped blocks (4211) that can be fitted with the side walls of the push block (41).

3. The protective device for storing a power amplifier according to claim 1, characterized in that: Each rotating column (2) has an annular protrusion (23) at both ends of the upper and lower ends near the opening (22), wherein the annular protrusion (23) protrudes outwards from the side wall of the rotating column (2) in a horizontal direction and can be embedded in the spacer block (12); The extrusion block (42) comprises a connecting section (422) and an arc section (421); one end of the connecting section (422) is connected to the inner side wall of the spacer block (12), and the other end is connected to the arc section (421); the side wall of the arc section (421) is capable of fitting with the side wall of the annular protrusion (23).

4. A protective device for storing a power amplifier according to claim 3, characterized in that: A second elastic return member (314) is embedded between the extrusion block (42) and the inner side wall of the spacing block (12); one end of the second elastic return member (314) is connected to the connecting section (422), and the other end is connected to the inner side wall of the spacing block (12).

5. The protective device for storing a power amplifier according to claim 1, characterized in that: Vertical pressing mechanisms (3) are also provided on both sides of the cabinet frame (1), and the vertical pressing mechanisms (3) include a pressing component (32) and a fixing component (31); The clamping assembly (32) comprises a moving rod (321) and a clamping plate (322), wherein the moving rod (321) is arranged on both sides of the cabinet frame (1) along the height direction of the cabinet frame (1), and the clamping plate (322) is arranged on the upper end of the rotating column (2) along the horizontal direction; Vertical grooves (13) are provided on both sides of the cabinet frame (1), and the vertical grooves (13) are provided along the height direction of the cabinet frame (1). The two ends of the clamping plate (322) respectively pass through the vertical grooves (13) and are fixedly connected to the corresponding moving rods (321). The fixing assembly (31) is arranged at the upper and lower ends of the moving rod (321).

6. A power amplifier storage protection device according to claim 5, characterized in that: The fixing assembly (31) comprises a mounting sleeve (311), a clamping shaft (312) and a rotating shaft (313); the mounting sleeve (311) is fixedly mounted on one side of the cabinet frame (1); the clamping shaft (312) is fixedly mounted in the mounting sleeve (311); the clamping shaft (312) is made of an elastic material; the rotating shaft (313) is located at the upper end of the clamping shaft (312) and is threadedly connected to the inner wall of the mounting sleeve (311); the inner wall of the lower end of the rotating shaft (313) is in contact with the outer wall of the upper end of the clamping shaft (312); and one end of the moving rod (321) passes through the rotating shaft (313) and extends into the clamping shaft (312).

7. A power amplifier storage protection device according to claim 6, characterized in that: The clamping shaft (312) comprises a plurality of clamping sheets (3121), and the plurality of clamping sheets (3121) form a placement cavity (3122) for inserting the moving rod (321); Each clamping piece (3121) has a first guiding bevel (3123) at its upper end, the first guiding bevel (3123) extending obliquely from top to bottom from a direction close to the placement cavity (3122) toward the circumferential side, and the rotating shaft (313) has a second guiding bevel (3133) at its lower end that can fit with the first guiding bevel (3123), the second guiding bevel (3133) extending from the middle of the rotating shaft (313) toward both sides from top to bottom.

8. A power amplifier storage protection device according to claim 7, characterized in that: A first elastic reset member (43) is embedded in each of the mounting sleeves (311); one end of the first elastic reset member (43) is connected to the bottom of the mounting sleeve (311), and the other end abuts against the end of the moving rod (321).

9. A power amplifier storage protection device according to claim 5, characterized in that: The vertical clamping mechanism (3) further comprises a limiting assembly (33), the limiting assembly (33) comprising a limiting sleeve (331) and a limiting plate (332), the limiting sleeve (331) being sleeved on the outside of the corresponding moving rod (321) and being rotatably connected to the moving rod (321), one end of the limiting plate (332) being connected to the limiting sleeve (331), and the other end extending toward the side wall of the cabinet frame (1), the side wall of the cabinet frame (1) being provided with a limiting groove (14) for inserting the limiting plate (332).

10. The protective device for storing a power amplifier according to claim 5, characterized in that: A plurality of first elastic extrusion portions (323) are provided at the bottom of each of the pressing plates (322), and each of the first elastic extrusion portions (323) is arranged in the direction of the corresponding placement slot (21).

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