CN215956583U - Constant-resistance constant-voltage general sound box body, constant-voltage sound box and constant-resistance sound box - Google Patents

Abstract

The utility model discloses a constant-resistance and constant-pressure general sound box body.A first mounting part for mounting a transformer waveband switch is arranged in an inner cavity of a box body main body; the back of the box body main body is provided with a conversion window which is communicated with the inner cavity of the box body main body; the indicating plate group comprises a first indicating plate and a second indicating plate; the first indicating plate and the second indicating plate are matched with the conversion window and used for selectively enabling the first indicating plate or the second indicating plate to be detachably connected into the conversion window and sealing the conversion window; the first indicator board is provided with an adjusting part for installing and adjusting a transformer band switch. Through adopting this surely hinder general audio amplifier box of level pressure, no matter be production, assembly surely hinder audio amplifier or level pressure audio amplifier, this general audio amplifier box all can be suitable for, also can be as required can convenient switching.

Description

Constant-resistance constant-voltage general sound box body, constant-voltage sound box and constant-resistance sound box

Technical Field

The utility model relates to the field of sound boxes for sound reinforcement, in particular to a constant-resistance and constant-pressure general sound box body, and further relates to a constant-pressure sound box and a constant-resistance sound box.

Background

The sound box is used as sound amplifying equipment and is widely applied to various places. In the field of sound amplification, because the transmission distances are different, the line loss is reduced, the audio output quality is ensured, a power amplifier is generally distinguished by fixed resistance and fixed voltage, and a sound box corresponding to the power amplifier is also divided into a fixed resistance sound box and a fixed voltage sound box. Under the same power, because the internal and external structures of the constant-voltage sound box and the constant-resistance sound box are different, two different box body structures can be adopted, and the box bodies of the constant-voltage sound box and the constant-resistance sound box are respectively and independently generated.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a constant-resistance and constant-pressure general sound box body, so that a constant-pressure sound box and a constant-resistance sound box body do not need to be separately produced, and the constant-pressure sound box or the constant-resistance sound box can be correspondingly assembled and assembled according to needs only by producing one type of sound box body. The utility model also provides a constant-pressure sound box and a constant-resistance sound box, wherein the constant-pressure sound box can be conveniently and directly modified into the constant-resistance sound box according to needs, and the constant-resistance sound box can also be conveniently and directly modified into the constant-pressure sound box, so that the conversion is very convenient and fast.

In a first aspect of the present invention, the present invention provides a constant-resistance and constant-pressure general sound box body, including a box body main body and an indicating plate group, wherein an inner cavity of the box body main body is provided with a first mounting portion for mounting a transformer band switch; a conversion window is arranged on the back surface of the box body main body and communicated with the inner cavity of the box body main body; the indicating plate group comprises a first indicating plate and a second indicating plate; the first indicating plate and the second indicating plate are matched with the conversion window and used for selectively enabling the first indicating plate or the second indicating plate to be detachably connected into the conversion window and sealing the conversion window; the first indicator board is provided with an adjusting part for installing and adjusting a transformer band switch.

Through adopting this hinder general audio amplifier box of level pressure surely, no matter be production, assembly is decided and is hindered audio amplifier or level pressure audio amplifier, this general audio amplifier box all can be suitable for, also can be as required can convenient switching, only need with first indicator plate, the second indicator plate respectively with the level pressure audio amplifier, it corresponds to hinder the audio amplifier surely, when the box main part internal assembly level pressure audio amplifier subassembly promptly, fix first indicator plate in the conversion window and this conversion window of shutoff, can set up the part if can control transformer band switch at this first indicator plate during the use, when needing conversion or assembly to hinder the audio amplifier surely, will hinder the audio amplifier subassembly surely and install on the mounted position that corresponds, then with the second indicator plate fix in the conversion window can. The indicating plate group is not only used as a mark, but also used as a part of a sound box as a cover body or a sealing piece, and by adopting the box body and the indicating plate group, in production, only one mould can be adopted to produce the box body and the indicating plate group, and separate moulds are not required to be respectively designed for a fixed-resistance sound box and a fixed-pressure sound box for production, so that the production cost is greatly reduced.

Furthermore, the box body is also internally provided with a second mounting part for mounting a Printed Circuit Board (PCB) of the wire connector and a third mounting part for mounting a transformer; a wiring window is arranged on the back surface of the box body main body and corresponds to the second mounting part; the conversion window corresponds to the first mounting portion.

Furthermore, the adjusting part can be arranged as a through hole on the adjusting part, and the through hole is used for penetrating through an adjusting piece connected with the transformer wave band switch; or the adjusting part can be arranged as an adjusting piece which is movably arranged on the first indicating plate. Adopt the first indicator board of detachable, utilize the regulating part that can conveniently dismantle to change the usage of box main part promptly.

Furthermore, the mode of fixing the indicating plate group on the conversion window can adopt a clamping mode, an inserting plate mode and a butt close fit mode, and the preferable mode of butt close fit is adopted, namely, the conversion window is provided with a flange extending towards the inner side of the conversion window, and one side of the first indicating plate or the second indicating plate facing the inner cavity of the box body is abutted against the flange.

Furthermore, the sealing between the indicating plate group and the conversion window can enable the first indicating plate or the second indicating plate to be arranged as an elastic element, the first indicating plate or the second indicating plate is pressed in the conversion window to achieve tight fit, the inner side edge of the flange extends towards the inner cavity of the box body to form a first hollow column, and one end, facing the inner cavity of the box body, of the first hollow column is used for being abutted to the transformer band switch. The first hollow column is not only a connecting element, but also provides a special receiving space for the adjusting element which extends into the first hollow column.

Furthermore, the inner cavity of the box body main body can be closed or semi-closed after two parts of the box body main body are folded, the box body main body comprises a front shell and a horn-shaped rear shell, the front shell and the rear shell are both of cover body structures, and the front shell is provided with a mounting hole for mounting a loudspeaker; the inner side wall of the rear shell is provided with a clamping groove, the edge of the front shell can enter the clamping groove and is used for enabling the front shell and the rear shell to form an inner cavity of the box body after being folded, the front shell can be stably fixed on the rear shell through the clamping groove, and the part between the front shell and the edge of the rear shell is also used as a gain structure of the loudspeaker.

Further, after the speaker is arranged, a mesh enclosure for protecting the speaker can be fixed through the clamping groove, so that connecting nodes on the wall of the rear shell are reduced as much as possible, namely, the mesh enclosure is arranged on the front side of the box body, and the edge of the mesh enclosure is clamped in the clamping groove. In the part of the mesh enclosure where the clamping groove is clamped, the inner side of the mesh enclosure abuts against the outer side wall of the front shell, and the outer side of the mesh enclosure abuts against the inner side of the rear shell, so that the mesh enclosure is pressed between the rear shell and the front shell.

Furthermore, in the wiring window, the inner side edge of the wiring window extends towards the inner cavity of the box body to form a second hollow column, one end, facing the inner cavity of the box body, of the second hollow column is used for being abutted to the connector PCB, the connector PCB is fixed in the same way, and the connection mode can be clamping, bonding, screw fixing and the like.

In a second aspect of the present invention, the present invention further provides a constant voltage sound box, which includes a speaker, a connector PCB board, a transformer band switch, the above-mentioned constant impedance and constant voltage general sound box body, and any one of the modifications thereof. Furthermore, the speaker is fixed in the box body of the constant-resistance constant-voltage general sound box body, the wire connector PCB is connected to the first installation part of the constant-resistance constant-voltage general sound box body, the transformer is connected to the second installation part of the constant-resistance constant-voltage general sound box body, the transformer band switch is connected to the third installation part of the constant-resistance constant-voltage general sound box body, and the speaker, the transformer and the transformer band switch are all electrically connected with the wire connector PCB. The constant-pressure sound box can be conveniently converted into a constant-resistance sound box.

In a third aspect of the present invention, the present invention further provides a fixed-resistance sound box, which comprises a speaker, a connector PCB board, the fixed-resistance fixed-voltage general sound box body and any one of the improved schemes thereof; the loudspeaker is fixed in the box body main body of the constant-resistance constant-pressure general sound box body; the connector PCB is connected to the first mounting portion of the fixed-resistance and fixed-voltage general sound box body. The speaker is electrically connected to the connector PCB. The fixed-resistance sound box can be conveniently converted into a fixed-pressure sound box.

The sound box body can adopt a sound box body bracket which comprises a first bracket and a second bracket; the first support comprises a first connecting end for fixing the loudspeaker box body support and a first butting end for connecting with the second support; the second support comprises a second connecting end for connecting the sound box body and a second butting end for connecting the first support; the first butt joint end and the second butt joint end are provided with annular tooth surfaces which are meshed with each other; the loudspeaker box body support further comprises a first locking piece penetrating through the joint of the first butt end and the second butt end, and the second support can rotate relative to the first support when the locking piece is loosened.

Through adopting this audio amplifier box support, when carrying out swift regulation to the orientation of audio amplifier box, not hard up rotate behind the first retaining member first support can, great for regulating staff, maintainer provide convenience.

Further, regarding the influence of the circumferential tooth surface on the angle adjustment, the practice is to set the circumferential tooth surface to be one tooth every 9-16 degrees or one tooth in any degree of 10 degrees, 11 degrees, 12 degrees, 13 degrees, 14 degrees and 15 degrees. Can be under the regulation of reliable firm, just can be convenient and accurate adjust the number of degrees of rotation between first support and the second support.

Further, in order to stably match the first support and the second support, a feasible design scheme is that a groove is formed in the first butt joint end, and the second butt joint end is connected in the groove, so that the circumferential tooth surfaces of the first butt joint end and the second butt joint end are engaged in the groove.

This scheme of adoption, the relative rotation of the first support of adjustment that can be convenient and second support can prevent again when not hard up first retaining member, makes and can not appear rocking between first branch and the second branch.

Further, regarding the installation of the whole sound box body bracket, one feasible scheme is that the first connecting end is connected with an installation plate; the mounting plate comprises a fixing plate and a connecting plate, and the fixing plate and the connecting plate form a folded plate structure; the fixing plate is used for fixing the sound box body bracket; the connecting plate is connected with the first connecting end through a second locking piece and used for enabling the first support to rotate relative to the mounting plate when the locking bolt is loosened.

Further, adopt two retaining members, through arranging the direction of arranging of two retaining members, make audio amplifier box support can carry out the rotation in two different positions, be enough to satisfy the demand of adjusting the directional of audio amplifier box, a feasible mode of setting is, first retaining member and second retaining member are cylindrical retaining member, the axis of first retaining member is perpendicular with the axis of second retaining member, when needing to carry out the angle modulation, only need not hard up first retaining member or second retaining member can.

Further, the first locking piece or the second locking piece is any one of a locking bolt, a locking screw, a bolt and a stud.

Further, be provided with cushion and metal pad on the connecting plate, the second retaining member passes in proper order cushion and metal pad, partly on the second retaining member compresses tightly cushion and metal pad between second retaining member and connecting plate.

Further, be provided with the shell on the mounting panel, the both sides of mounting panel are provided with the butt joint groove, the shell both sides are provided with the butt joint fastener of butt joint groove adaptation, the setting of shell is in order to protect the installation accessory on the mounting panel not interfered easily, disturbance such as screw, bolt.

Further, the second link is provided with the bar shaped plate that is used for connecting the audio amplifier box, and four ends of bar shaped plate all are provided with the screw that is used for wearing to establish the bolt, and the setting of bar shaped plate here is not only connected with the audio amplifier box in order to more firm, also provides a part that ensures this audio amplifier box physical stamina to set up, prevent crooked for the audio amplifier box.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the utility model and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the utility model and together with the description serve to explain the principles of the utility model. In the drawings:

fig. 1 is a schematic view for explaining a cabinet of the sound box of embodiment 1 and a constant-pressure sound box of embodiment 2;

fig. 2 is a schematic sectional view for explaining the cabinet body of embodiment 1;

fig. 3 is a schematic view for explaining the cabinet body of the sound box of embodiment 1 and the back of the constant-pressure sound box of embodiment 2;

fig. 4 is a schematic view for explaining the cabinet body of the sound box of embodiment 1 and the back of the fixed-resistance sound box of embodiment 3;

fig. 5 is a schematic structural view for explaining the constant-pressure sound box of embodiment 2;

fig. 6 is a schematic sectional view of the constant-pressure sound box for explaining embodiment 2;

FIG. 7 is an exploded view of a cabinet support for explaining embodiment 4;

fig. 8 is a schematic view for explaining a case bracket of the sound box of embodiment 4 when it is attached to the sound box;

fig. 9 is a schematic view for explaining the case bracket of the sound box of embodiment 4 when connected to the sound box and rotated laterally;

FIG. 10 is a schematic view for explaining the case holder of the speaker box of embodiment 4 when it is connected to the speaker box to be rotated longitudinally;

fig. 11 is a schematic view of a cabinet frame structure for explaining embodiment 4;

fig. 12 is a schematic view for explaining a first stand and a second stand of the cabinet stand of embodiment 4;

fig. 13 is a schematic view of a housing for explaining the mounting plate of embodiment 4;

reference numbers and corresponding part names:

1-mesh enclosure, 2-loudspeaker, 3-front shell, 4-rear shell, 410-first hollow column, 420-second hollow column, 51-transformer band switch, 510-potential encoder cam handle, 52-transformer, 6-connector PCB, 7-indicator board group, 71-first indicator board, 72-second indicator board, 8-knob adjusting cap, 9-nut, 10-card slot, 11-conversion window, 12-wiring window, 13-first bracket, 131-first connecting end, 132-first connecting end, 1321-groove, 1322-circular slot, 14-first bracket, 141-second connecting end, 142-second connecting end, 1421-circular column member, 15-first locking member, 16-second locking member, 17-mounting plate, 171-fixing plate, 1711-butt joint groove, 172-connecting plate, 18-rubber pad, 19-metal pad, 20-shell, 2001-butt joint fastener, 21-strip-shaped plate, 100-first mounting part, 200-second mounting part and 300-third mounting part.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to one of ordinary skill in the art that: it is not necessary to employ these specific details to practice the present invention. In other instances, well-known structures, circuits, materials, or methods have not been described in detail so as not to obscure the present invention.

Throughout the specification, reference to "one embodiment," "an embodiment," "one example," or "an example" means: the particular features, structures, or characteristics described in connection with the embodiment or example are included in at least one embodiment of the utility model. Thus, the appearances of the phrases "one embodiment," "an embodiment," "one example" or "an example" in various places throughout this specification are not necessarily all referring to the same embodiment or example. Furthermore, the particular features, structures, or characteristics may be combined in any suitable combination and/or sub-combination in one or more embodiments or examples. Further, those of ordinary skill in the art will appreciate that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In the description of the present invention, it is to be understood that the terms "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "high", "low", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the scope of the present invention.

Example 1

Referring to fig. 1 to 6, a general speaker box with constant resistance and constant voltage, the inner cavity of the main body of the box is provided with a first mounting part 100 for mounting a transformer band switch 51; a conversion window 11 is arranged on the back of the box body main body, and the conversion window 11 is communicated with the inner cavity of the box body main body; the indicator panel group 7 includes a first indicator panel 71 and a second indicator panel 72; the first indicating plate 71 and the second indicating plate 72 are both adapted to the switching window 11, and are used for selectively and detachably connecting the first indicating plate 71 or the second indicating plate 72 to the switching window 11 and sealing the switching window 11; the first indicator board 71 is provided with an adjusting portion for mounting and adjusting a band switch of the transformer.

Through adopting this box main part and indicator panel group 7, need not to design independent mould respectively to hinder the audio amplifier surely and level pressure audio amplifier and produce, with reduction in production cost, only need open a pair mould can, if in the conversion of hindering surely after the production, only need carry out the change that corresponds with the part in the box main part, change first indicator panel 71 into second indicator panel 72 simultaneously, second indicator panel 72 is fixed in the conversion window, and the shutoff should the conversion window can, it is swift, convenient.

The case body further includes a second mounting portion 200 for mounting the connector PCB 6 and a third mounting portion 300 for mounting the transformer. A wiring window 12 is provided on the rear surface of the case body, and the wiring window 12 corresponds to the second mounting portion 200. The switching window corresponds to the first mounting portion 100.

The specific arrangement of the first installation part 100, the second installation part 200 and the third installation part 300 may be that a plurality of positioning columns with screw holes are adopted, the installation parts are formed by the areas surrounded by a plurality of or four positioning columns, and the connector PCB 6, the transformer and the transformer band switch are matched with the positioning columns by adopting screws or bolts to complete positioning and installation.

Preferably, the adjusting portion is provided as an adjusting member, and the adjusting member is movably provided on the first indicating plate 71 in this embodiment, where the adjusting member may be a knob adjusting cap 8, and the knob adjusting cap 8 penetrates through the through hole on the first indicating plate 71. Adopt the first indicator panel 71 of detachable, utilize the regulating part that can conveniently dismantle to change the usage of box main part promptly, first indicator panel 71 and second indicator panel 72 can adopt the PVC material.

In the manner of fixing the indicating plate group 7 to the conversion window, a clamping manner may be adopted, for example, the inner wall of the conversion window is recessed, and the first indicating plate 71 or the second indicating plate 72 is clamped into the conversion window, or an inserting manner may be adopted, the inner wall of the conversion window is recessed, one side of the conversion window is opened, and the first indicating plate 71 or the second indicating plate 72 is inserted into the conversion window, and here, a preferable manner may be adopted, that is, the conversion window is provided with a flange extending to the inner side of the conversion window, and one side of the first indicating plate 71 or the second indicating plate 72 facing the inner cavity of the box body is abutted against the flange, so that the structure is relatively simple, and the fixing of the indicating plate group 7 can be relatively conveniently completed.

In a further improvement, the first indicator board 71 or the second indicator board 72 is pressed in the conversion window to realize tight fit, the inner side edge of the flange extends towards the inner cavity of the box body to form a first hollow column, and one end of the first hollow column facing the inner cavity of the box body is used for being connected with a transformer band switch. The first hollow column is not only used as a connecting component, but also is used for providing a special accommodating space for an adjusting piece which extends into the first hollow column, and the connection of the first hollow column and the transformer waveband switch can be preferably arranged in a bolt fixing mode.

In this embodiment, the cabinet body preferably includes a front case 3 and a rear case 4 in a horn shape, the front case 3 and the rear case 4 are both cover structures, and the front case 3 is provided with a mounting hole for mounting the speaker 1. The inner side wall of the rear shell 4 is provided with a clamping groove 10, the edge of the front shell 3 can enter the clamping groove 10 to form an inner cavity of the box body after the front shell 3 and the rear shell 4 are folded, the front shell 3 can be stably fixed on the rear shell 4 by arranging the clamping groove 10, and the part between the edges of the front shell 3 and the rear shell 4 is also used as a gain structure of the loudspeaker 1. The back of the rear shell 4 can be embedded with nuts 9 for being installed with other equipment.

After the speaker 1 is installed, the mesh enclosure 1 for protecting the speaker 1 may also be fixed by the above-mentioned slot 10, so as to reduce the number of connection nodes on the wall of the rear housing 4 as much as possible, that is, the mesh enclosure 1 is installed on the front side of the box body, and the edge of the mesh enclosure 1 is fastened to the above-mentioned slot 10. In the portion of the mesh cover 1 where the engaging groove 10 is engaged, the inner side of the mesh cover 1 abuts against the outer side wall of the front case 3, and the outer side of the mesh cover 1 abuts against the inner side of the rear case 4, so that the mesh cover 1 is pressed between the rear case 4 and the front case 3.

When specifically setting up, open in the middle part of above-mentioned preceding shell 33 has the fretwork round hole, round hole is arranged in to above-mentioned speaker 12, the anterior segment basin frame of speaker 1 leans on screw connection with preceding shell 33, above-mentioned preceding shell 33 leans on locating hole and the reference column position cooperation of above-mentioned backshell 44 back to go into in foretell draw-in groove 10 through the border card of screw connection preceding shell 33 simultaneously, above-mentioned steel screen panel 11 has a plurality of salient positions at the department of bending edge all around, because possess certain tension after the steel mesh mould shaping, reach interference fit, the card is in the positive draw-in groove 10 that corresponds after above-mentioned preceding shell 3 and backshell 4 assembly.

In the wiring window 12, the inner side edge of the wiring window 12 extends towards the inner cavity of the box body to form a second hollow column, and one end of the second hollow column facing the inner cavity of the box body is used for being connected with the connector PCB 6, and the connector PCB 6 is fixed in the same way, and the connection mode can be clamping, bonding, screw fixing and the like.

Example 2

Referring to fig. 1 to 5, the present embodiment provides a constant voltage sound box, which includes a speaker 1, a connector PCB 6, a transformer band switch, and a constant resistance and constant voltage general sound box body provided in the above embodiment 1 and any one of the modifications thereof. In a specific arrangement, the speaker 1 is fixed in the box body of the constant-resistance and constant-voltage general speaker box, the connector PCB 6 is connected to the first mounting portion 100 of the constant-resistance and constant-voltage general speaker box, the transformer is connected to the second mounting portion 200 of the constant-resistance and constant-voltage general speaker box, the transformer band switch is connected to the third mounting portion 300 of the constant-resistance and constant-voltage general speaker box, the speaker 1, the transformer and the transformer band switch are all electrically connected to the connector PCB 6, and the transformer band switch form the transformer circuit assembly 5.

Adopt this level pressure audio amplifier can very convenient conversion to decide and hinder the audio amplifier, only need with inside transformer circuit subassembly 5 follow foretell first installation department 100 and third installation department 300 on dismantle, take out can, change one in the above-mentioned indicator board group 7 that corresponds to sealed shutoff audio amplifier box's conversion window can. When the device is specifically set, the rear shell 4 is provided with an upper mounting column and a lower mounting column, the transformer, the wire connector PCB 6, the transformer rotary switch board are fixedly arranged on the rear shell 4 through screws, the knob adjusting cap 8 is clamped on a potentiometer on a transformer band switch, the knob adjusting cap 8 is a component part of a constant pressure sound box, a thin groove is formed in the knob adjusting cap, and a straight-head screwdriver is used for rotating to play a role in constant pressure power regulation. The speaker 1 is fixed to the front case 3 by tapping screws.

Example 3

Referring to fig. 1 to 5, in a third aspect of the present invention, the present invention further provides a constant-impedance sound box, which includes a speaker 1, a connector PCB 6, and the constant-impedance and constant-voltage general sound box body of embodiment 1 and any one of the modifications thereof. The loudspeaker 1 is fixed in the box body of the fixed-resistance and fixed-pressure general sound box body. The connector PCB 6 is connected to the first mounting portion 100 of the speaker housing. The speaker 1 is electrically connected to the connector PCB 6. Adopt this decide audio amplifier that hinders can very convenient conversion to the constant voltage audio amplifier, only need in inside add transformer circuit subassembly 5 to foretell first installation department 100 and third installation department 300 on can, change one in the above-mentioned indicator board group 7 that corresponds to sealed shutoff audio amplifier box's conversion window can.

Example 4

Referring to fig. 7 to 13, a cabinet frame includes a first frame 13 and a second frame 14; the first bracket 13 comprises a first connecting end 131 for fixing the speaker box bracket and a first butting end 132 for connecting with the second bracket 14; the second bracket 14 comprises a second connecting end 141 for connecting the box body of the sound box and a second butting end 142 for connecting the first bracket 13; the first butt end 132 and the second butt end 142 are provided with mutually engaging circumferential tooth surfaces, as shown in fig. 12; the speaker box body bracket further comprises a first locking member 15 penetrating through the joint of the first butt end 132 and the second butt end 142, and the second bracket 14 can rotate relative to the first bracket 13 when the locking member is loosened.

By adopting the sound box body bracket, when the orientation of the sound box body needs to be quickly adjusted, only the first locking piece 15 needs to be loosened, the meshed annular tooth surfaces are separated, the first bracket 13 is rotated, after the preset position is reached, the first locking piece 15 is locked, the annular tooth surfaces are meshed again, the adjustment is completed, by adopting the circumferential tooth surface, not only the relative sliding of the first bracket 13 and the second bracket 14 in the locked state of the first locking member 15 can be prevented, but also according to the design of the circumferential tooth surface, the rotation degree of the sound box body driven by the first bracket 13 is determined, an angle scale is marked on the first bracket 13 or the second bracket 14 in a matching way, the rotating angle can be accurately known, and an accurate rotating degree basis is provided for subsequent rotation of the automatic angle adjusting equipment, such as automatic adjustment of the rotating angle according to an instruction after the first locking piece 15 is automatically loosened. Through adopting this audio amplifier box support, when carrying out swift regulation to the orientation of audio amplifier box, not hard up first support 13 of rotation behind the first retaining member 15 can, great regulation personnel, maintainer provide convenience.

Regarding the influence of the circumferential tooth surface on the angle adjustment, practice shows that the circumferential tooth surface is set to be one tooth every 9-16 degrees or one tooth in any degree of 10 degrees, 11 degrees, 12 degrees, 13 degrees, 14 degrees and 15 degrees, and 10 degrees, 12 degrees or 15 degrees can be preferably adopted in the embodiment.

The degree of rotation between the first bracket 13 and the second bracket 14 can be conveniently and accurately adjusted under reliable and stable adjustment.

In order to stably match the first bracket 13 and the second bracket 14, a possible design is that the first abutting end 132 is provided with a groove 1321, and the second abutting end 142 is connected in the groove 1321, so that the circumferential tooth surfaces of the first abutting end 132 and the second abutting end 142 are engaged in the groove 1321.

On the basis of the above technical solution, it can be further optimized that a circular groove 1322 is formed in the groove 1321, a cylindrical member 1421 adapted to the circular groove 1322 is disposed on the second abutting end 142, and corresponding through holes for penetrating the first locking member 15 are disposed on the cylindrical member 1421 and the circular groove 1322. This scheme of adoption, the relative rotation of the first support of adjustment 13 that can be convenient and fast and second support 14 can prevent again when not hard up first retaining member 15, makes and can not appear rocking between first branch and the second branch.

Preferably, the first connecting end 131 is connected to the mounting plate 17; the mounting plate 17 comprises a fixing plate 171 and a connecting plate 172, and the fixing plate 171 and the connecting plate 172 form a folded plate structure; the fixing plate 171 is used for fixing the sound box body bracket; the connecting plate 172 is connected to the first connecting end 131 by the second locking member 16, so that the first bracket 13 can rotate relative to the mounting plate 17 when the first locking member 15 is loosened.

Adopt two retaining members, through arranging the direction of arranging of two retaining members, make audio amplifier box support can carry out the rotation in two different positions, be enough to satisfy the demand of adjusting the directional of audio amplifier box, a feasible mode of setting is, first retaining member 15 and second retaining member 16 are the columnar retaining member, the axis of first retaining member 15 is perpendicular with second retaining member 16's axis, when needing to carry out the angle modulation, only need not hard up first retaining member 15 or second retaining member 16 can.

The first locking member 15 or the second locking member 16 is any one of a locking bolt, a locking screw, a latch, and a stud. A locking bolt or a locking screw may be preferably used, and when the locking bolt or the locking screw is rotated, the circumferential tooth surfaces of the first bracket 13 and the second bracket 14 may be conveniently and directly separated, so that the angle adjustment may be more convenient.

On the connection node locked by the second locker 16, without using a circumferential tooth surface, if the connection plate 172 is horizontally arranged, the first connection end 131 of the first bracket 13 is connected to the lower side of the connection plate 172, and sufficient friction force can be ensured to exist between the first connection end and the connection plate 172 by setting the gravity of the cushion layer and the sound box, and in combination with the action of the second locker 16, slipping between the first connection end 131 and the connection plate 172 is prevented, specifically, the connection plate 172 is provided with the rubber mat 18 and the metal mat 19, the second locker 16 sequentially passes through the rubber mat 18 and the metal mat 19, a part of the second locker 16 presses the rubber mat 18 and the metal mat 19 between the second locker 16 and the connection plate 172, so that when the second locker 16 is locked, the metal mat 19 applies force to the rubber mat 18, the rubber mat 18 is in a compressed state, and friction force is generated on the horizontal plane of the connection plate 172, a fastened state is reached.

Can let cushion 18 resume elastic state through not hard up second retaining member 16, then rotate first support 13 and realize rotating around second retaining member 16 axle center, constitute horizontal direction rotating device, realize the angle modulation of horizontal Z axle direction.

The above-mentioned mounting plate 17 may be preferably provided with a housing 20, two sides of the mounting plate 17 are provided with docking slots 1711, two sides of the housing 20 are provided with docking fasteners 2001 adapted to the docking slots 1711, the mounting plate 17 may be mounted on a facility such as a wall by screws, bolts, etc., and the housing 20 is provided to protect mounting fittings such as the screws, bolts, etc. on the mounting plate 17 from being easily interfered and disturbed.

The fixing plate 171 has 4 counter bores for mounting and fixing on the wall. The fixing plate 171 may preferably be provided with a square-shaped harness hole at the center, and the signal power line may be extended out of the wall and then pass through the harness hole. The fixing plate 171 has a protruding rib at both sides of the middle to form the aforementioned abutting groove 1711.

Preferably, second link 141 is provided with the bar 21 that is used for connecting the audio amplifier box, and four ends of bar 21 all are provided with the screw that is used for wearing to establish the bolt, and here bar 21's setting is not only connected with the audio amplifier box in order to be more firm, also provides a part that ensures this audio amplifier box physical stamina and ajusts, prevent askew for the audio amplifier box, during the setting, can set up corresponding cross recess on the audio amplifier box equally.

The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (10)

1. A general sound box body with fixed resistance and fixed pressure is characterized by comprising a box body main body and an indicating plate group;

a first mounting part for mounting a transformer band switch is arranged in the inner cavity of the box body main body;

a conversion window is arranged on the back surface of the box body main body and communicated with the inner cavity of the box body main body;

the indicating plate group comprises a first indicating plate and a second indicating plate;

the first indicating plate and the second indicating plate are matched with the conversion window and used for selectively enabling the first indicating plate or the second indicating plate to be detachably connected into the conversion window and sealing the conversion window;

and the first indicator board is provided with an adjusting part for installing, adjusting and installing a transformer band switch.

2. A constant-resistance constant-pressure general sound box body according to claim 1,

the box body main body is also internally provided with a second mounting part for mounting a wire connector PCB and a third mounting part for mounting a transformer;

a wiring window is arranged on the back surface of the box body main body and corresponds to the second mounting part; the switching window corresponds to the first mounting portion.

3. A constant-resistance constant-pressure general sound box body according to claim 2,

the inboard border of wiring window extends to the hollow post of second of formation of box main part inner chamber, the hollow post of second is used for with connector PCB board butt towards the one end of box main part inner chamber.

4. A constant-resistance constant-pressure general sound box body according to claim 1,

the adjusting part is a through hole which is used for penetrating an adjusting piece connected with the transformer wave band switch; or,

the adjusting part is an adjusting piece, and the adjusting piece is movably arranged on the first indicating plate.

5. A constant-resistance constant-pressure general sound box body according to claim 1,

the conversion window is provided with a flange extending towards the inner side of the conversion window, and one side of the first indicator plate or the second indicator plate facing the inner cavity of the box body is abutted against the flange.

6. A constant-resistance constant-pressure universal sound box body according to claim 5,

the inboard border of flange extends to box main part inner chamber and forms first hollow post, the one end of first hollow post orientation box main part inner chamber is used for with transformer wave band switch butt.

7. A constant-resistance constant-pressure general sound box body according to claim 4,

the loudspeaker box comprises a box body main body and a loudspeaker box body, wherein the box body main body comprises a front shell and a horn-shaped rear shell, the front shell and the rear shell are both of cover body structures, and the front shell is provided with a mounting hole for mounting a loudspeaker;

the inner side wall of the rear shell is provided with a clamping groove, and the edge of the front shell can enter the clamping groove and is used for enabling the front shell and the rear shell to be folded to form an inner cavity of the box body main body.

8. A constant-resistance constant-pressure universal sound box body according to claim 7,

a mesh enclosure is arranged on the front side of the box body main body, and the edge of the mesh enclosure is clamped in the clamping groove;

in the part of the joint draw-in groove of screen panel, the inboard of screen panel with preceding shell lateral wall butt, the outside of screen panel with the inboard butt of backshell for make the screen panel crimping in between backshell and the preceding shell.

9. A constant voltage sound box is characterized by comprising a loudspeaker, a wire connector PCB, a transformer band switch and a constant resistance constant voltage general sound box body according to any one of claims 1 to 8;

the loudspeaker is fixed in the box body main body of the constant-resistance constant-pressure general sound box body;

the wire connector PCB is connected to a first mounting part of the constant-resistance and constant-voltage general sound box body;

the transformer is connected to a second mounting part of the constant-resistance and constant-voltage general sound box body;

the transformer band switch is connected to a third mounting part of the constant-resistance constant-voltage general sound box body;

the loudspeaker, the transformer and the transformer band switch are all electrically connected with the connector PCB.

10. A constant-resistance and constant-voltage sound box is characterized by comprising a loudspeaker, a connector PCB and a constant-resistance and constant-voltage general sound box body as claimed in any one of claims 1 to 8;

the loudspeaker is fixed in the box body main body of the constant-resistance constant-pressure general sound box body;

the wire connector PCB is connected to a first mounting part of the constant-resistance and constant-voltage general sound box body;

the speaker is electrically connected with the connector PCB.

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