CN202026462U - Sound amplifier - Google Patents
Sound amplifier Download PDFInfo
- Publication number
- CN202026462U CN202026462U CN2011201508501U CN201120150850U CN202026462U CN 202026462 U CN202026462 U CN 202026462U CN 2011201508501 U CN2011201508501 U CN 2011201508501U CN 201120150850 U CN201120150850 U CN 201120150850U CN 202026462 U CN202026462 U CN 202026462U
- Authority
- CN
- China
- Prior art keywords
- inner housing
- shell body
- mainboard
- loudspeaker
- main board
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to the technical field of sound amplifiers, in particular to a sound amplifier. The sound amplifier comprises an outer shell, an inner shell is arranged in the outer shell, a large main board is arranged in the inner shell, a small main board is arranged above the large main board, a horn is arranged on one end of the inner shell and electrically connected with the large main board, a cover board is arranged at the other end of the inner shell, the large main board and the small main board are both arranged on the cover board, a trepan boring is also arranged on the inner wall of the inner shell and is internally provided with a movable bolt, and a rotation switch is arranged on the upper end of the movable bolt and connected with the movable bolt in a matching manner. In the use of the sound amplifier, the inner shell, the large main board, the small main board and the cover board move in the outer shell integrally so as to achieve the effect of adjusting the sound amplifier; and during the integral movement, the rotation switch and the movable bolt is rotatably matched to control the moving distance of the inner shell, the large main board, the small main board and the cover board in the outer shell, so that the sound amplifier is capable of achieving the most proper sound amplification effect and the damage on the electric connection between the main board and the horn due to the overlarge moving distance can be avoided.
Description
Technical field
The utility model relates to the public address equipment technical field, especially relates to a kind of loudspeaker.
Background technology
Loudspeaker and microphone are used, and play the effect that amplifies in meeting, sales promotion, propaganda or the like occasion, with sound expand bigger farther.At present, loudspeaker on the market is of a great variety, using more is the loudspeaker of direct intercommunication and the loudspeaker of built-in recording chip, and these two types of loudspeakers to expand the sound size that be fixing uncontrollable, like this when using the loudspeaker of these types, be inconvenient to control the size that expands sound, and then can cause certain drawback the user.
The utility model content
At the deficiency that above-mentioned prior art exists, the purpose of this utility model provides a kind of loudspeaker, and it has the conveniently adjusted size that amplifies, characteristics simple in structure, with low cost.
To achieve these goals, the technical scheme that the utility model adopted is: a kind of loudspeaker, comprise shell body, be arranged with movably inner housing in the described shell body, be provided with big mainboard in the inner housing, big mainboard top is provided with little mainboard, one end of inner housing is provided with loudspeaker, these loudspeaker are electrically connected with described big mainboard, and the other end of inner housing is provided with cover plate, and described big mainboard and little mainboard all are arranged in cover plate, the inwall of described inner housing also is provided with trepanning, be equipped with movable bolt in the trepanning, movable bolt upper end is provided with rotary switch, rotary switch and movable bolt is rotatable is connected.
Wherein, described inner housing one end is sheathed in the shell body, and the other end extends outside the shell body, the described diameter of the inner housing of an end outside the shell body and the equal diameters of shell body of extending.
Wherein, described movable bolt is provided with fixture block, and described rotary switch offers groove, and fixture block moves along the groove rotation.
Wherein, described inner housing comprises inner housing and following inner housing, and last inner housing is connected by screw with following inner housing.
Wherein, described inner housing down is provided with battery case, is equiped with battery in the battery case, and the battery case bottom is provided with the detachable battery lid plate.
Wherein, a side of described cover plate is provided with the PVC plaque, and PVC plaque one side is provided with knob, and this knob passes described cover plate and is connected with described big mainboard one end with the PVC plaque.
Wherein, described shell body one end also offers acoustic hole, the corresponding setting with this acoustic hole of described loudspeaker.
After adopting said structure, the utility model is compared the advantage that is had with prior art: by be arranged with movably inner housing in described shell body, be provided with big mainboard in the inner housing, big mainboard top is provided with little mainboard, one end of inner housing is provided with loudspeaker, these loudspeaker are electrically connected with described big mainboard, the other end of inner housing is provided with cover plate, described big mainboard and little mainboard all are arranged in cover plate, the inwall of described inner housing also is provided with trepanning, be equipped with movable bolt in the trepanning, movable bolt upper end is provided with rotary switch, and rotary switch and movable bolt is rotatable is connected is during use, by making inner housing, big mainboard, little mainboard and cover plate be whole moving in shell body, reaches to regulate effect of the present utility model; In addition, inner housing, big mainboard, little mainboard and cover plate are whole when mobile in shell body, the distance that described rotary switch and the rotatable control inner housing that cooperates of movable bolt, big mainboard, little mainboard and cover plate move in shell body, make the utility model reach the only effect that amplifies, avoid the distance that moves excessive and make mainboard be electrically connected damage with loudspeaker simultaneously.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is a decomposing schematic representation of the present utility model.
Fig. 3 is a cutaway view of the present utility model.
Among the figure: 1, shell body; 2, inner housing;
3, big mainboard; 4, little mainboard;
5, loudspeaker; 6, cover plate;
7, trepanning; 8, movable bolt;
9, rotary switch; 10, battery case;
11, battery; 12, battery case cover plate;
13, PVC plaque; 14, knob;
15, acoustic hole; 21, go up inner housing;
22, following inner housing; 81, fixture block;
91, groove.
Embodiment
The following stated only is preferred embodiment of the present utility model, does not therefore limit protection range of the present utility model.
See that Fig. 1 is to shown in Figure 3: a kind of loudspeaker, comprise shell body 1, be arranged with movably inner housing 2 in the described shell body 1, be provided with big mainboard 3 in the inner housing 2, big mainboard 3 tops are provided with little mainboard 4, one end of inner housing 2 is provided with loudspeaker 5, these loudspeaker 5 are electrically connected with described big mainboard 3, the other end of inner housing 2 is provided with cover plate 6, described big mainboard 3 all is arranged in cover plate 6 with little mainboard 4, the inwall of described inner housing 2 also is provided with trepanning 7, be equipped with movable bolt 8 in the trepanning 7, movable bolt 8 upper ends are provided with rotary switch 9, rotary switch 9 and movable bolt 8 rotatable being connected, by in described shell body 1, being arranged with movably inner housing 2, be provided with big mainboard 3 in the inner housing 2, big mainboard 3 tops are provided with little mainboard 4, one end of inner housing 2 is provided with loudspeaker 5, these loudspeaker 5 are electrically connected with described big mainboard 3, the other end of inner housing 2 is provided with cover plate 6, described big mainboard 3 all is arranged in cover plate 6 with little mainboard 4, the inwall of described inner housing 2 also is provided with trepanning 7, be equipped with movable bolt 8 in the trepanning 7, movable bolt 8 upper ends are provided with rotary switch 9, and rotary switch 9 and movable bolt 8 rotatable being connected are during use, by making inner housing 2, big mainboard 3, little mainboard 4 and cover plate 6 be whole moving in shell body 1, reaches to regulate effect of the present utility model; In addition, inner housing 2, big mainboard 3, little mainboard 4 and cover plate 6 are whole when mobile in shell body 1, described rotary switch 9 and the movable bolt 8 rotatable control inner housings 2 that cooperate, big mainboard 3, little mainboard 4 and cover plate 6 mobile distance shell body 1 in, make the utility model reach the only effect that amplifies, avoid the distance that moves excessive and make mainboard be electrically connected damage simultaneously with loudspeaker 5.
In the present embodiment, described inner housing 2 one ends are sheathed in the shell body 1, the other end extends outside the shell body 1, the described diameter of the inner housing 2 of an end outside the shell body 1 and the equal diameters of shell body 1 of extending, the inner housing 2 that stretches into shell body 1 one ends like this forms certain step with the inner housing 2 that stretches out shell body 1 one ends, can avoid inner housing 2 unconfined moving, exempt influence loudspeaker 5 and shell body 1.
In the present embodiment, described movable bolt 8 is provided with fixture block 81, and described rotary switch 9 offers groove 91, fixture block 81 moves along groove 91 rotations, by being connected of fixture block 81 and groove 91, inner housing 2 and shell body 1 being moved in reasonable range, and then effectively control micropkonic sound.
In the present embodiment, described inner housing 2 comprises inner housing 21 and following inner housing 22, last inner housing 21 and following inner housing 22 are connected by screw, except adopting the screw connection, can also adopt to be fastened and connected, described inner housing 22 down is provided with battery case 10, is equiped with battery 11 in the battery case 10, battery case 10 bottoms are provided with detachable battery lid plate 12, and described battery case cover plate 12 can snapping or is connected in the battery case 10.
In the present embodiment, one side of described cover plate 6 is provided with PVC plaque 13, PVC plaque 13 1 sides are provided with knob 14, this knob 14 passes described cover plate 6 and is connected with described big mainboard 3 one ends with PVC plaque 13, described knob 14 can be connected cover plate 6 with PVC plaque 13, by knob 14 can be suitable replacing PVC plaque 13 on different pattern, color etc.
In the present embodiment, described shell body 1 one ends also offer acoustic hole 15, described loudspeaker 5 and these acoustic hole 15 corresponding settings, and this acoustic hole 15 both can help the transmission of sound, and the heat that loudspeaker 5 and mainboard can also be distributed is effectively got rid of.
The above only is a better embodiment of the present utility model, so all equivalences of doing according to the described structure of the utility model patent claim, feature and principle change or modify, is included in the utility model patent claim.
Claims (7)
1. loudspeaker, comprise shell body (1), it is characterized in that: be arranged with movably inner housing (2) in the described shell body (1), be provided with big mainboard (3) in the inner housing (2), big mainboard (3) top is provided with little mainboard (4), one end of inner housing (2) is provided with loudspeaker (5), these loudspeaker (5) are electrically connected with described big mainboard (3), the other end of inner housing (2) is provided with cover plate (6), described big mainboard (3) all is arranged in cover plate (6) with little mainboard (4), the inwall of described inner housing (2) also is provided with trepanning (7), be equipped with movable bolt (8) in the trepanning (7), movable bolt (8) upper end is provided with rotary switch (9), rotary switch (9) and rotatable being connected of movable bolt (8).
2. a kind of loudspeaker according to claim 1, it is characterized in that: described inner housing (2) one ends are sheathed in the shell body (1), the other end extends outside the shell body (1), the described diameter of the inner housing (2) of an end outside the shell body (1) and the equal diameters of shell body (1) of extending.
3. a kind of loudspeaker according to claim 2 is characterized in that: described movable bolt (8) is provided with fixture block (81), and described rotary switch (9) offers groove (91), and fixture block (81) moves along groove (91) rotation.
4. a kind of loudspeaker according to claim 3 is characterized in that: described inner housing (2) comprises inner housing (21) and following inner housing (22), and last inner housing (21) is connected by screw with following inner housing (22).
5. a kind of loudspeaker according to claim 4 is characterized in that: be provided with battery case (10) in the inner housing (22) under described, be equiped with battery (11) in the battery case (10), battery case (10) bottom is provided with detachable battery lid plate (12).
6. a kind of loudspeaker according to claim 5, it is characterized in that: a side of described cover plate (6) is provided with PVC plaque (13), PVC plaque (13) one sides are provided with knob (14), and this knob (14) passes described cover plate (6) and is connected with described big mainboard (3) one ends with PVC plaque (13).
7. a kind of loudspeaker according to claim 6 is characterized in that: described shell body (1) one end also offers acoustic hole (15), described loudspeaker (5) and the corresponding setting of this acoustic hole (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201508501U CN202026462U (en) | 2011-05-12 | 2011-05-12 | Sound amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201508501U CN202026462U (en) | 2011-05-12 | 2011-05-12 | Sound amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202026462U true CN202026462U (en) | 2011-11-02 |
Family
ID=44851394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201508501U Expired - Fee Related CN202026462U (en) | 2011-05-12 | 2011-05-12 | Sound amplifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202026462U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104780492A (en) * | 2015-02-13 | 2015-07-15 | 张祥奎 | A combined type horn for amplifying sound |
| CN106993861A (en) * | 2017-05-16 | 2017-08-01 | 郑秀华 | A kind of umbrella handle broadcast |
| CN110459151A (en) * | 2019-09-11 | 2019-11-15 | 苏州随身玩信息技术有限公司 | A kind of portable explains device |
-
2011
- 2011-05-12 CN CN2011201508501U patent/CN202026462U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104780492A (en) * | 2015-02-13 | 2015-07-15 | 张祥奎 | A combined type horn for amplifying sound |
| CN104780492B (en) * | 2015-02-13 | 2017-03-15 | 张祥奎 | A kind of public address combination type horn |
| CN106993861A (en) * | 2017-05-16 | 2017-08-01 | 郑秀华 | A kind of umbrella handle broadcast |
| CN110459151A (en) * | 2019-09-11 | 2019-11-15 | 苏州随身玩信息技术有限公司 | A kind of portable explains device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111102 Termination date: 20130512 |