CN209461147U - A kind of portable electric wooden drum - Google Patents
A kind of portable electric wooden drum Download PDFInfo
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- CN209461147U CN209461147U CN201821652593.XU CN201821652593U CN209461147U CN 209461147 U CN209461147 U CN 209461147U CN 201821652593 U CN201821652593 U CN 201821652593U CN 209461147 U CN209461147 U CN 209461147U
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- wooden drum
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Abstract
A kind of portable electric wooden drum, the wooden drum, which is equipped with, taps surface and sensing device, and the sensing device is set to the downside for tapping surface one end, and the sensing device is also connected with electricity output line；It further include bottom surface, described percussion surface one end and described bottom surface one end are hinged, accompany sensing device between the percussion surface other end and the bottom surface other end；The sensing device includes induction side and non-inductive side, and the induction side, which is attached to, taps surface, and non-inductive side is attached to bottom surface, and the sensing device is connected with electricity output line.A possibility that musical instrument feedback in the utility model and string sound, is all minimum, and voice response is true, tone color details capture it is sensitive, without noise without string acoustic sound efficiency and the double height of quality, it is small and exquisite be succinctly convenient for carrying, durable foot step on it is not bad.
Description
Technical field
The utility model relates to musical instrument field, especially a kind of portable electric wooden drum.
Background technique
The idiophonic composition of electroacoustic class generally comprises a primary piezo-electric device or other types on the market at present
Sensing device, be attached on wooden (or other materials) surface layer of synthesis；Incude wooden or other materials the table of its attachment
The firmly degree that layer is tapped by user or drummer.Amplitude/signal strength is detected by MIDI electronic device, then " is triggered "
The output pre-recorded and stored, what these original sound drum tone colors pre-recorded usually stored in digital form.In the existing technology
In, synthesis wood is attached to using low-quality sensing device or glued board taps face, is pre-recorded with triggering and is sampled the side of tone color output
Formula can not reproduce various careful strike performances, lower tone in percussion music performance, be confined to using " triggering " " sampling tone color "
Mode.If sensing device is only used as " triggering " mechanism use, any background noise is likely to occur by the way, and audience will
It hears the tone color of pre-recording being triggered, rather than causes " to trigger " original signal of mechanism itself.
For example, tapping surface tapping using wire brush, or touched with drum stick, the basic area of sensing device in the prior art
Divide and does not come out.More it is not possible that reproducing wire brush comforts fruit of proving effective.Also can not distinguish percussion when use hand, be foot or
Other apparatus such as drum stick.
In the prior art, such as card flood drum (Cajon) is exactly a cuboid box, and there are six faces altogether, usually wooden
Plywood is made, and adheres to sensing device on one of face or more than one face.But more be on one of face
There is a circular hole, for microphone to put in pickup；And the structure of conga drum (djembe) is exactly drum head and cavity and will
Circle of the drum head hoop on cavity, cavity are usually formed with log borehole, and there are also the products that synthetic material is molded.Africa
Bulging drum bottom is empty, if microphone is directed at drum surface, high frequency can be excessive inside the tone color of pickup, however for side when performance
It just, often have to be from drum surface pickup.Low frequency is picked up generally for more, to enter from drum end stretch microphone, thus need
Solid firm drum is made, very trouble, and conga drum itself is not so portable；Such musical instrument is mostly all
Microphone is needed to amplify primary sound.Microphone tends to feedback (uttering long and high-pitched sounds), also tends to the sound for picking up other neighbouring musical instruments
(string sound), thus idiophonic fidelity is affected to a certain extent.
Existing technology, the sensing device of low-quality, the low output of use are used to amplify without the electric signal of height output, as
Jazz is this to require careful soft percussion music to show, be easy for becoming inside noise or electronic circuit fizz.Not yet
There is the sensing device of high output high-quality, just without signal source strong enough, signal-to-noise ratio is with regard to low.
Utility model content
In order to overcome the disadvantages mentioned above of the prior art, above-mentioned technology can be solved the purpose of the utility model is to provide one kind and is asked
A kind of portable electric wooden drum of topic.
The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of portable electric wooden drum, in which: described
Wooden drum be equipped with and tap surface and sensing device, the sensing device is set to the downside for tapping surface one end, the sense
Device is answered to be also connected with electricity output line；
It further include bottom surface, described percussion surface one end and described bottom surface one end are hinged, and the percussion surface is another
Sensing device is accompanied between end and the bottom surface other end；
The sensing device includes that induction side and non-inductive side (i.e. inertia side), the induction side are attached to percussion table
Face, non-inductive side are attached to bottom surface, and the sensing device is connected with electricity output line.
As further improvement of the utility model: the sensing device is equipped with metal shell, the metal shell
Inside fastening, which clamps, several piezoelectric units, plays good coupling, the metal shell is connected with negative line and connects
Ground, positive contact and insulating trip are additionally provided with inside the metal shell, and the positive contact is equipped with electrode line.
As further improvement of the utility model: the metal shell is metal guide groove and metal guide rail, the gold
Category guide rail is aluminum strip, for forming the non-inductive side of entire sensing device as inertia side.The metal guide groove covers piezoelectricity member
Part forms induction side, and the induction side, which is attached to, taps surface, and the non-inductive side (i.e. inertia side) is attached to bottom surface.
As further improvement of the utility model: the metal guide groove matches with the metal guide rail；It is described
Sensing device be successively arranged metal guide groove, insulating trip, positive contact, several piezoelectric units and metal guide rail, described is several
Piezoelectric unit is coupled among the metal guide groove and metal guide rail by fixed mechanism.
As further improvement of the utility model: the electricity output line is connected to the preceding storing of volume and tone color control
On big device；The electricity output line is single-core shielding line.
As further improvement of the utility model: the percussion surface using log clamping plate or carbon fiber board production and
At.
As further improvement of the utility model: the piezoelectric unit is piezoelectric transducer.
Compared with prior art, the utility model has the beneficial effects that
For the log clamping plate or carbon fiber board that the utility model uses high-quality as percussion face, such material is enough
It is thin, thus fundamental frequency is sufficiently low, can respond out more typical drum head formula low frequency tone color, the accordatura of drum head itself is sufficiently low, makes it
It is able to issue the metronome to match with music rhythm.
Single foot or both feet can be used to step on and play for product in the utility model, and can tell and whether wear shoes, the skin worn
It is very sensitive that wire brush, drum stick, hand or any other apparatus, sensing device used also can be used in shoes or sandals.
A possibility that musical instrument feedback in the utility model and string sound, is all minimum, and voice response is true, and tone color details captures
It is sensitive, without noise without the double height of string acoustic sound efficiency and quality, it is small and exquisite be succinctly convenient for carrying, durable foot step on it is not bad.
Detailed description of the invention
Fig. 1 is one structural schematic diagram of embodiment of utility model；
Fig. 2 is the partial structural diagram of the utility model；
Fig. 3 is the partial structurtes perspective view of the explosion of the utility model；
Fig. 4 is two, three, four structural schematic diagram of the embodiments of the present invention；
Fig. 5 is the use state of the utility model with reference to figure.
Specific embodiment
Now in conjunction with Detailed description of the invention, the present invention will be further described with embodiment:
Embodiment one:
Referring to figs. 1 to 3 and Fig. 5, a kind of portable electric wooden drum, in which: wooden drum, which is equipped with, taps surface 1 and sensing device 2,
Sensing device 2 is set to the downside for tapping 1 one end of surface, and sensing device 2 is also connected with electricity output line 4.
Sensing device 2 is equipped with the metal shell 21 that aluminum material is made, and fastening, which clamps, inside metal shell 21 four
A or six piezoelectric units 22, piezoelectric unit are piezoelectric ceramics stick, and piezoelectric unit quantity is fewer, and noise is bigger, because obtaining
Signal source it is not strong enough, piezoelectric unit quantity is more, and signal is bigger, and noise is with regard to smaller.Metal shell 21 is connected with negative line
And be grounded, positive contact 23 and insulating trip 24 are additionally provided with inside metal shell 21, positive contact 23 is equipped with electrode line.Metal shell
21 be metal guide groove 211 and metal guide rail 212, and metal guide groove 211 matches with metal guide rail 212；Sensing device 2 is successively arranged
Metal guide groove 211, insulating trip 24, positive contact 23, piezoelectric unit 22 and metal guide rail 212, piezoelectric unit 22 pass through fixed machine
Structure is coupled among metal guide groove 211 and metal guide rail 212.
Electricity output line 4 is connected on the preamplifier 5 of volume and tone color control；Electricity output line 4 is single-core shielding line.
When impact taps surface, sensing device 2 acquires sound and is sent on preamplifier 5.
Sensing device 2 in this embodiment can be bonded on the downside of the one end for tapping surface, also can be only placed in and be tapped surface
One end on the downside of, do not have to fixation also may be used.
Embodiment two:
Referring to figs. 2 to 5, wooden drum, which is equipped with, taps surface 1 and sensing device 2, and sensing device 2, which is set to, taps 1 one end of surface
Downside, sensing device 2 is also connected with electricity output line 4.Further include bottom surface 3, taps 1 one end of surface and 3 one end of bottom surface is hinged, strike
It hits and is equipped with sensing device 2 between 1 other end of surface and the other end of bottom surface 3, sensing device 2 is installed on bottom surface 3.
The percussion surface 1 and bottom surface 3 that the strike wooden drum is hinged using two panels form shears-like movement structure, and can open
It closes and a sensing device 2 is installed at vibration, sensing device 2 is equipped with electricity output line 4, puts before being connected to volume and tone color control
Big device 5；Sensing device 2 forms acquisition data component using the good piezoelectric unit 22 of 21 inner clamps close coupling of metal shell,
Sensing device 2 is installed on bottom surface 3；When percussion surface 1 is struck, the percussion surface 1 of shears-like movement structure is moved,
On sensing device 2, sensing device 2 acquires voice data for impact, by the output to preamplifier 5 of electricity output line 4.
Wooden drum, which is equipped with, taps surface 1 and bottom surface 3, taps 1 one end of surface and 3 one end of bottom surface is hinged, hinged mode may be used also
To take stickup or other modes to be connected；It taps and is equipped with sensing device 2 among 1 other end of surface and the other end of bottom surface 3, i.e.,
It taps surface 1 and bottom surface 3 clips sensing device 2, sensing device 2 is installed on above the other end of bottom surface 3, and sensing device 2 can be put
Sound can anywhere be generated in bottom surface 3, and be placed on bottom surface 3 most while while on it is optimal, primarily to allowing different positions
Volume and the tone color difference set become apparent from, that is, closer to sensing device 2, sound is bigger, and sound is smaller more far away, level
It is richer.Sensing device 2, which uses, to be pasted, adheres to or adopt the other end for being screwed in bottom surface 3.And it is scissor construction so that this
When kind musical instrument is stepped on by foot, one of face is deformed on another face and is unlikely to rupture, and persistence is preferable, can be used to play
It stamps one's foot rhythm.
The percussion surface 1 and bottom surface 3 are geometry, can be for rectangle, square, round or ellipse wherein
A kind of shape, material are solid wood clamping plate or carbon fiber board, and the one side for tapping surface and bottom surface is hinged, and three sides are without fixation.Wherein, long
Whether there is or not three fixed sides freely to vibrate with bottom surface on rectangular or rectangular percussion surface, and round or ellipse shape is struck
Hit surface and to have 90 ° of arc sides to carry out hinged for bottom surface, and remaining 270 ° of arc sides be without fixed side, can free vibration.
Sensing device 2 is equipped with metal shell 21, and fastening, which clamps, inside metal shell 21 several piezoelectric units 22, plays good
Good coupling, metal shell 21 are connected with negative line and are grounded, and positive contact 23 and absolutely is additionally provided with inside metal shell 21
Embolium 24, positive contact 23 are equipped with electrode line.Metal shell 21 can be used aluminum material and be made.
The sensing device feature with the following functions:
1) output power of piezoelectric element；
2) there is the biggish side of quality as inertia side i.e. non-inductive side, vibrated for incuding side relative to it；
3) coupling is good, mono- independent individual of Cheng Qiwei.
Several piezoelectric units 22 can be 4 or 6 or other quantity, or use the piezoelectric unit 22 of one piece of entirety also
It can.
Sensing device 2 is connected with electricity output line 4；Electricity output line 4 is connected to the preamplifier 5 of volume and tone color control
On.
Metal shell 21 is metal guide groove 211 and metal guide rail 212, and metal guide groove 211 matches with metal guide rail 212；
Sensing device 2 is successively arranged metal guide groove 211, insulating trip 24, positive contact 23, several piezoelectric units 22 and metal guide rail 212,
Several piezoelectric units 22 are coupled among metal guide groove 211 and metal guide rail 212 by fixed mechanism；Pre-assembly and good
Then the sensing device 2 of coupling is attached to idiophonic percussion surface 1, piezoelectric unit 22 is all clamped to improve in device
The sound conduction rate in portion, improves efficiency.Fixed mechanism can be to be fixed using screw structural or bonding method.
Metal guide groove 211 and metal guide rail 212 can be used aluminium material and be made.
2 shell of sensing device is additionally provided with conductive material layer, forms cathode；Wherein shell is also connected with negative line.
Embodiment three:
Referring to figs. 2 to 5, a kind of portable electric wooden drum, in which: wooden drum, which is equipped with, taps surface 1 and sensing device 2, induction dress
It sets 2 and is set to the downside for tapping 1 one end of surface, sensing device 2 is also connected with electricity output line 4.
Further include bottom surface 3, taps 1 one end of surface and be fixedly connected with 3 one end of bottom surface, tap 1 other end of surface and bottom surface 3
Sensing device 2 is equipped between the other end, and sensing device 2 is coated with colloid, and sensing device 2 is fixed on by colloid
It taps on surface 1 and bottom surface 3.
When production, first sensing device 2 is sticked to AB glue and is tapped on surface 1, is then covered sensing device 2 with a mold
Get up, then hot melt adhesive or AB glue are perfused inside, wait gellings to consolidate after atrophy, then mold is taken off, colloid package is made
Sensing device 2.The another side of this colloid is finally sticked to bottom surface 3 again, including electricity output line 4 is also to tap surface 1.
2 technology of sensing device of the present embodiment is consistent with embodiment two.
Example IV:
With reference to the percussion surface 1 that Fig. 4 to 5, two panels are hinged, a sensing device 2 is included, an electricity output line 4 is connected to
Volume and tone color control preamplifier 5.
The percussion surface 1 of the shapes such as two panels rectangle or square, ellipse, circle, material be solid wood clamping plate or other
Material is hinged on one side, and three sides can freely be vibrated without fixation, no three fixed sides.
When it is round for tapping surface 1, the range with 270 degree or so, can free vibration without fixation；For that of strike
A face more can freely vibrate.
When needing the response of upper frequency, fixed side length is needed to increase accordingly, that is, needs the side length of fixed whole, or
The side length of half.
Or at the percussion surface 1 of round or ellipse, 360 degree to fix.Or depending on thinking frequency response to be achieved
Determine fixed side length.
It is the one end being hinged in two sheet materials, places a sensing device 2 among two sheet materials, be attached to for percussion
On upper surface, the vibration on the surface is picked up.
Sensing device 2:
Sensing device 2 includes 4 or more (usually 6) piezoelectric units 22, to reach higher signal output, wherein
Piezoelectric unit 22 is fewer, and noise is bigger, because the signal source obtained is not strong enough, piezoelectric unit more than 22, signal is bigger, makes an uproar
Sound is with regard to smaller；Or the biggish piezo-electric device of single one also can be used instead of several piezoelectric units 22.
Sensing device 2 includes a pair of aluminum or other lightweight conductives and the conductive metal of relative rigid structures, composition one
The entirety of a clamping, this pair of of metal structure mutually with fastened by screw together, in this way inside piezoelectric unit 22 be compressed to
And it firmly couples.
In the outside of piezoelectric unit 22, there are also layer of conductive material, surround or substantially surround whole device, form device
Cathode is also responsible for electromagnetic shielding (RF shielding).From the device interference with radio radiation.
The side of sensing device 2 is the side that piezoelectric element is clamped at aluminium guide groove or the like part, this side is as sense
Side is answered, is fixed on clamping plate percussion face in a manner of screw or gluing.
An insulating trip 24 is equipped between the aluminium guide groove and positive contact 23 of 2 main structure of sensing device；
Electrode line picks out to come from positive contact 23.
Negative line is connected on aluminium guide barrel construction body, therewith constitutes ground (cathode) and the shielding of whole device.
Electricity output line 4 is fixed on that beneath sheet material, that is, that block plate of non-percussion face.
Then electricity output line 4 is inserted into 5 box of preamplifier, this box can have tone color to control network.
In conclusion after those skilled in the art read the utility model file, skill according to the present utility model
Art scheme and technical concept are not necessarily to creative mental labour and make other various corresponding conversion schemes, and it is practical new to belong to this
The range that type is protected.
Claims (5)
1. a kind of portable electric wooden drum, it is characterised in that: the wooden drum, which is equipped with, taps surface and sensing device, the induction
Device is set to the downside for tapping surface one end, and the sensing device is also connected with electricity output line；
Further include bottom surface, described percussion surface one end and described bottom surface one end are hinged, the percussion surface other end with
Sensing device is accompanied between the bottom surface other end；
The sensing device includes induction side and non-inductive side, and the induction side, which is attached to, taps surface, the attachment of non-inductive side
In bottom surface, the sensing device is connected with electricity output line.
2. a kind of portable electric wooden drum according to claim 1, it is characterised in that: the sensing device is equipped with outside metal
Shell, the metal shell inside fastening, which clamps, several piezoelectric units, and the metal shell is connected with negative line and is grounded,
Positive contact and insulating trip are additionally provided with inside the metal shell, the positive contact is equipped with electrode line.
3. a kind of portable electric wooden drum according to claim 2, it is characterised in that: the metal shell is metal guide groove
And metal guide rail, the metal guide groove match with the metal guide rail；The sensing device is successively arranged metal and leads
Slot, insulating trip, positive contact, several piezoelectric units and metal guide rail, several piezoelectric units are by fixed mechanism by coupling
Among the metal guide groove and metal guide rail.
4. a kind of portable electric wooden drum according to claim 1, it is characterised in that: the electricity output line is connected to volume
On the preamplifier of tone color control；The electricity output line is single-core shielding line.
5. a kind of portable electric wooden drum according to claim 1, it is characterised in that: the percussion surface is pressed from both sides using log
Plate or carbon fiber board are made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821652593.XU CN209461147U (en) | 2018-10-12 | 2018-10-12 | A kind of portable electric wooden drum |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821652593.XU CN209461147U (en) | 2018-10-12 | 2018-10-12 | A kind of portable electric wooden drum |
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| Publication Number | Publication Date |
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| CN209461147U true CN209461147U (en) | 2019-10-01 |
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ID=68035349
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821652593.XU Active CN209461147U (en) | 2018-10-12 | 2018-10-12 | A kind of portable electric wooden drum |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109087622A (en) * | 2018-10-12 | 2018-12-25 | 广州博创乐器有限公司 | A kind of portable electric wooden drum |
-
2018
- 2018-10-12 CN CN201821652593.XU patent/CN209461147U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109087622A (en) * | 2018-10-12 | 2018-12-25 | 广州博创乐器有限公司 | A kind of portable electric wooden drum |
| CN109087622B (en) * | 2018-10-12 | 2024-04-16 | 广州博创乐器有限公司 | Portable bakelite drum |
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