CN206181343U - Strong sound case with directive property - Google Patents

Abstract

The utility model discloses a strong sound case with directive property, including the box, the middle part fixedly connected with baffle of box both sides inner wall, the top of baffle is the high pitch chamber, and the below of baffle is the bass chamber, and high pitch chamber and bass intracavity are provided with first speaker and second speakers respectively, and first bugle and second bugle are installed respectively to first speaker and second speakers's outside, the right side outer wall fixedly connected with backup pad of box, the upper surface fixedly connected with motor of backup pad. This strong sound case with directive property gathers a sound section of thick bamboo, lead screw, sleeve and motor through the setting, and motor rotating band kinetodesma thick stick rotates, because telescopic fixed surface is connected with the connecting rod, and the connecting rod pegs graft and leading to the inslot, and the inner wall that leads to the groove blocks the connecting rod, and it is the up -and -down motion to change rotary motion to the drive gathers sound section of thick bamboo up -and -down motion, thus with first bugle overlap joint, reached the effect of adjusting strong sound case directive property scope, easy operation, convenient to use.

Description

A kind of strong sound case with directivity

Technical field

This utility model is related to stereo set technical field, specially a kind of strong sound case with directivity.

Background technology

Audio amplifier is the terminal of whole sound system, and its effect is that audio frequency electric energy is converted into corresponding acoustic energy, and its spoke It is mapped to space to go, it is the extremely important ingredient of sound system, because it is responsible for is transformed into acoustical signal confession the signal of telecommunication The ear of people directly listens to so one mission critical, and it directly will come into contacts with the audition of people, and the audition of people is very clever Quick, and the tone color to complex sound has very strong resolving ability.

Directivity is referred to when frequency is fixed, is used as by transducer response in the given plane of the acoustic centre of source and is launched or incident The function in sound wave direction, the directivity of sound source represents the spatial distribution of sound source radiation intensity of sound.Directional sound source is away from sound source The sound pressure level of the locus of the equidistant different directions in center is unequal.The sound that people and musical instrument send all has directivity. When the scale ratio wavelength of sound source is much smaller, can approximately regard as direction-free " point sound source ".Now, apart from Sound Source Center etc. At distance, sound pressure level is equal, and in the audible frequency of human ear, usual frequency is higher, and the directivity of sound source is stronger.

Audio amplifier in the market mostly carries out directivity control using bugle, is fixed yet with the cambered surface of bugle , the directivity scope for causing audio amplifier is fixed, it is impossible to regulated and controled, so as to affect the auditory effect of audience.

Utility model content

(1) technical problem for solving

For the deficiencies in the prior art, this utility model provides a kind of strong sound case with directivity, solves sound The problem that the directivity scope of case can not regulate and control.

(2) technical scheme

For achieving the above object, this utility model provides following technical scheme：A kind of strong sound case with directivity, bag Casing is included, dividing plate is fixedly connected with the middle part of the inwall of the casing both sides, the top of the dividing plate is high pitch chamber, the dividing plate Lower section is bass chamber, and the high pitch chamber and bass intracavity are respectively arranged with the first speaker and the second speaker, and described first raises The outside of sound device and the second speaker is separately installed with the first bugle and the second bugle, and the outer right wall of the casing is fixedly connected The upper surface for having gripper shoe, the gripper shoe is fixedly connected with motor, and the output shaft of the motor is fixedly connected by shaft coupling The thread surface for having leading screw, the leading screw is connected with sleeve, and the surface left side of the sleeve is fixedly connected with connecting rod, high pitch chamber Right flank offers groove, and the connecting rod passes through groove and extends to the inside in high pitch chamber, the company away from one end of sleeve Extension bar is located at the one end in high pitch intracavity portion and is fixedly connected with poly- sound cylinder, and the front of the poly- sound cylinder is provided with dust cap.

Preferably, first bugle is fixedly connected rubber ring, and the poly- sound cylinder back side away from the one side of the first speaker Diameter it is identical with the diameter of rubber ring.

Preferably, the width of the groove is adapted with the diameter of connecting rod.

Preferably, the top of the groove is located at same horizontal line with the middle part of the first bugle.

Preferably, the top of the leading screw is fixedly connected with block.

(3) beneficial effect

This utility model provides a kind of strong sound case with directivity.Possesses following beneficial effect：

(1), there should be the strong sound case of directivity, by arranging poly- sound cylinder, leading screw, sleeve and motor, motor rotational band Dynamic leading screw is rotated, and because the surface of sleeve is fixedly connected with connecting rod, and connecting rod is plugged in groove, and the inwall of groove is blocked Connecting rod, changes rotary motion to move up and down, and so as to drive poly- sound cylinder to move up and down, so as to overlap with the first bugle, reaches The effect of strong sound case directivity scope is adjusted, it is simple to operate, it is easy to use.

(2), there should be the strong sound case of directivity, by arranging dust cap, when audio amplifier works, sound wave causes internal junction Structure shakes, and vibrations produce electrostatic, easily adsorb dust, and preventing dust from entering in casing using dust cap affects tonequality, by setting Rubber ring is put, makes poly- sound cylinder even closer with number one angular contact, prevent regarding for the leakage of sound, impact tonequality and audience Feel effect, by arranging block, for blocking sleeve, prevent sleeve from skidding off leading screw.

Description of the drawings

Fig. 1 is this utility model structure front elevational view；

Fig. 2 is this utility model structure sectional side view.

In figure：1 casing, 2 dividing plates, 3 high pitch chambers, 4 bass chambers, 5 first speakers, 6 second speakers, 7 first bugles, 8 Second bugle, 9 gripper shoes, 10 motors, 11 shaft couplings, 12 leading screws, 13 connecting rods, 14 grooves, 15 poly- sound cylinders, 16 dust caps, 17 Rubber ring, 18 blocks, 19 sleeves.

Specific embodiment

Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of this utility model, rather than whole Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment for being obtained, belongs to the scope of this utility model protection.

As shown in Figure 1-2, this utility model provides a kind of technical scheme：A kind of strong sound case with directivity, including Casing 1, is fixedly connected with dividing plate 2 in the middle part of the both sides inwall of casing 1, the top of dividing plate 2 is high pitch chamber 3, and the lower section of dividing plate 2 is low The first speaker 5 and the second speaker 6, the first speaker 5 and second are respectively arranged with sound chamber 4, high pitch chamber 3 and bass chamber 4 The outside of speaker 6 is separately installed with the first bugle 7 and the second bugle 8, one side of first bugle 7 away from the first speaker 5 Rubber ring 17 is fixedly connected, and the diameter at the poly- back side of sound cylinder 15 is identical with the diameter of rubber ring 17, by arranging rubber ring 17, makes Poly- sound cylinder 15 contacts even closer with the first bugle 7, prevents the leakage of sound, affects the visual effect of tonequality and audience, The outer right wall of casing 1 is fixedly connected with gripper shoe 9, and the upper surface of gripper shoe 9 is fixedly connected with motor 10, and motor 10 is connected with External power supply, is powered to motor 10, while motor 10 is provided with external controller being controlled to the switch of motor 10, electricity The output shaft of machine 10 is fixedly connected with leading screw 12 by shaft coupling 11, and the top of leading screw 12 is fixedly connected with block 18, by setting Block 18 is put, for blocking sleeve 19, prevents sleeve 19 from skidding off leading screw 12, the thread surface of leading screw 12 is connected with sleeve 19, covered The surface left side of cylinder 19 is fixedly connected with connecting rod 13, and the right flank of high pitch chamber 3 offers groove 14, the top of groove 14 and first The middle part of bugle 7 is located at same horizontal line, when connecting rod 13 is moved to the top of groove 14, the bugle 7 of poly- sound cylinder 15 and first Opposite face be just completely superposed, connecting rod 13 away from sleeve 19 one end is through groove 14 and extends to the inside in high pitch chamber 3, The width of groove 14 is adapted with the diameter of connecting rod 13, for blocking connecting rod 13, so as to prevent sleeve 19 from rotating, changes rotation Move to move up and down, while preventing connecting rod 13 from shaking in groove 14, affect the weight of the poly- bugle 7 of sound cylinder 15 and first Close, connecting rod 13 is located at the one end inside high pitch chamber 3 and is fixedly connected with poly- sound cylinder 15, by arranging poly- sound cylinder 15, leading screw 12, set Cylinder 19 and motor 10, motor 10 is rotated and drives leading screw 12 to rotate, and because the surface of sleeve 19 is fixedly connected with connecting rod 13, and is connected Extension bar 13 is plugged in groove 14, and the inwall of groove 14 blocks connecting rod 13, changes rotary motion to move up and down, poly- so as to drive Sound cylinder 15 moves up and down, and so as to overlap with the first bugle 7, has reached the effect of the strong sound case directivity scope of regulation, operation letter Single, easy to use, the front of poly- sound cylinder 15 is provided with dust cap 16, by arranging dust cap 16, when audio amplifier works, acoustic duct Internal structure vibrations, vibrations are caused to produce electrostatic, easily adsorb dust, preventing dust from entering in casing 1 using dust cap 16 affects Tonequality.

Can to sum up obtain, there should be the strong sound case of directivity, by arranging poly- sound cylinder 15, leading screw 12, sleeve 19 and motor 10, the effect of the strong sound case directivity scope of regulation has been reached, it is simple to operate, it is easy to use, solve the directivity model of audio amplifier Enclose the problem that can not regulate and control.

It should be noted that herein, such as first and second or the like relational terms are used merely to a reality Body or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or deposit between operating In any this actual relation or order.And, term " including ", "comprising" or its any other variant are intended to Nonexcludability is included, so that a series of process, method, article or equipment including key elements not only will including those Element, but also including other key elements being not expressly set out, or also include for this process, method, article or equipment Intrinsic key element.In the absence of more restrictions, the key element for being limited by sentence "including a ...", it is not excluded that Also there is other identical element in process, method, article or equipment including the key element.

While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art, It is appreciated that these embodiments can be carried out various changes in the case of without departing from principle of the present utility model and spirit, repaiies Change, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.

Claims (5)

1. a kind of strong sound case with directivity, including casing (1), it is characterised in that：In the inwall of casing (1) both sides Portion is fixedly connected with dividing plate (2), and the top of the dividing plate (2) is high pitch chamber (3), and the lower section of the dividing plate (2) is bass chamber (4), it is respectively arranged with the first speaker (5) and the second speaker (6) in the high pitch chamber (3) and bass chamber (4), described first The outside of speaker (5) and the second speaker (6) is separately installed with the first bugle (7) and the second bugle (8), the casing (1) Outer right wall be fixedly connected with gripper shoe (9), the upper surface of the gripper shoe (9) is fixedly connected with motor (10), the electricity The output shaft of machine (10) is fixedly connected with leading screw (12) by shaft coupling (11), and the thread surface of the leading screw (12) is connected with set Cylinder (19), the surface left side of the sleeve (19) is fixedly connected with connecting rod (13), and high pitch chamber (3) right flank offers groove (14), the connecting rod (13) passes through groove (14) and extends to the inside of high pitch chamber (3) away from one end of sleeve (19), described Connecting rod (13) is fixedly connected with poly- sound cylinder (15), the front peace of the poly- sound cylinder (15) positioned at high pitch chamber (3) internal one end Equipped with dust cap (16).

2. a kind of strong sound case with directivity according to claim 1, it is characterised in that：First bugle (7) Rubber ring (17), and the diameter and rubber ring at poly- sound cylinder (15) back side are fixedly connected away from the one side of the first speaker (5) (17) diameter is identical.

3. a kind of strong sound case with directivity according to claim 1, it is characterised in that：The width of the groove (14) Degree is adapted with the diameter of connecting rod (13).

4. a kind of strong sound case with directivity according to claim 1, it is characterised in that：The top of the groove (14) End is located at same horizontal line with the middle part of the first bugle (7).

5. a kind of strong sound case with directivity according to claim 1, it is characterised in that：The top of the leading screw (12) End is fixedly connected with block (18).