Sofa sounding device

Abstract

The utility model relates to the technical field of acoustic testing, in particular to a sounding device which comprises a bottom plate, a vertical rod fixedly connected to the edge of the upper side of the bottom plate, a speed regulating assembly fixedly connected to the side edge of the vertical rod, a motor connected to the upper end of the vertical rod through bolts, a disc fixedly connected to the output end of the motor, and a connecting rod eccentrically and rotationally connected to one side, away from the motor, of the disc. A hammering rod is arranged at the lower end of the sliding assembly, the lower end of the hammering rod reciprocates in a container, the container is arranged on a bottom plate, a protection plate is arranged between the container and the bottom plate, and sand is contained in the container. The rotating speed of the motor can be controlled through the speed adjusting assembly, so that the hammering frequency of the hammering rod is controlled, the hammering frequency of the hammering rod on sand can be controlled and changed, the hammering frequency is stable, the sound production device can meet the requirements of different experiment conditions, and the universality of the sound production device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to acoustic testing technical field, especially a kind of sand sounding device. BACKGROUND

[0002] Sand sounding device is usually used in acoustic experiment, and the sound signal of sand is converted into voltage signal by microphone, oscilloscope and acoustic testing system, and then the amplified signal after impedance matching filter and noise removal is converted into digital signal by 12-bit analog / digital conversion and input into computer, and then the three signal representation parameters of waveform, root mean square value and energy spectrum density are output by display and printer after digital signal processing program analysis.

[0003] As shown in Figure 1 The existing sand sounding device usually puts the sample of the same weight (50g) into smooth quartz glass container 1-2, and the container is padded with 10cm thick protective plate to avoid co-seismic with table, and then the sand is impacted by the mallet 1-1 with a length of about 8cm and a diameter of 1.9cm to make the sand sound. However, the frequency of the device is not easy to control, which causes the sound frequency not easy to control during experiment, so that the sound device has low application range and does not have universality. SUMMARY

[0004] In view of the above situation, the sand sounding device is provided to overcome the defects of the prior art.

[0005] The sand sounding device comprises a bottom plate, a vertical rod fixedly connected to the upper side edge of the bottom plate, a speed regulating assembly fixedly connected to the side of the vertical rod, a motor bolted to the upper end of the vertical rod, a disc fixedly connected to the output end of the motor, a connecting rod eccentrically connected to the side of the disc away from the motor, a sliding assembly rotatably connected to the other end of the connecting rod, a hammering rod provided at the lower end of the sliding assembly, the hammering rod reciprocally moving in the container, the container being arranged on the bottom plate, a protective plate arranged between the container and the bottom plate, and sand being arranged in the container.

[0006] Further, a power switch is arranged on the front side of the speed regulating assembly, and a speed regulating knob is rotatably arranged on the upper side of the power switch.

[0007] Further, the sliding assembly comprises an I-shaped seat, a connecting plate arranged at the bottom of the I-shaped seat, the connecting plate being bolted to the side of the vertical rod, a fixed plate arranged at the top of the I-shaped seat, two vertical guide rails fixedly connected to the side of the fixed plate away from the vertical rod, a sliding block slidably connected to each of the two guide rails, a T-shaped block fixedly connected to the sliding block, the T-shaped block comprising a connecting piece, a driving block arranged on the upper side of the connecting piece, the end of the connecting rod being rotatably connected to the side of the driving block away from the connecting piece, and the hammering rod being threadedly connected to the lower side of the driving block.

[0008] Further, the connecting rod upper and lower ends are provided with through holes, the two through holes are rotatably provided with driving pins, the driving pin end is bolted with a limiting sheet, the upper end of the driving pin is fixed eccentrically connected to the disc away from the limiting sheet, and the lower end of the driving pin is fixedly connected to the driving block away from the limiting sheet.

[0009] Further, the driving pin one end is provided with a threaded hole, the other end of the driving pin is provided with a baffle, and the side of the baffle away from the threaded hole is provided with a threaded column.

[0010] Further, the limiting sheet one side is provided with a hexagonal prism, and the other side of the limiting sheet is provided with a screw rod.

[0011] Further, the container bottom is provided with a bottom disc, the bottom disc is fixedly connected with a protective plate, and the bottom surface of the protective plate protrudes the bottom surface of the bottom disc by 1mm.

[0012] Further, the bottom surface of the protective plate is provided with a plurality of anti-skid holes.

[0013] Further, the container inner cavity bottom is provided with a semicircular spherical ball cavity.

[0014] Further, the container is a cup body or a barrel body.

[0015] The beneficial effects of the utility model are that the speed regulating assembly and the motor are arranged, the motor speed is controlled through the speed regulating assembly, the hammering frequency of the hammering rod is controlled, the hammering frequency control and change of the hammering rod on the sand are realized, the hammering frequency is stable, the main frequency of the sand sound signal is within 1000Hz, and therefore the sound device can meet the needs of different experimental conditions and improve the versatility of the sound device. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic view of the sound experimental device in the prior art;

[0017] Figure 2 It is a whole three-dimensional structural schematic view of an embodiment of the utility model;

[0018] Figure 3 It is a whole three-dimensional structural schematic view of another view of an embodiment of the utility model;

[0019] Figure 4 It is a structural schematic view of the utility model Figure 3 in B;

[0020] Figure 5 It is an exploded structural schematic view of the driving pin part of the utility model;

[0021] Figure 6 It is a structural schematic view of the utility model Figure 6 in C;

[0022] Figure 7 It is a bottom view structural schematic diagram of the container of the utility model;

[0023] Figure 8 It is a sectional view structural schematic diagram of the container of the utility model;

[0024] Figure 9 It is a physical picture of another embodiment of the utility model (not containing the container).

[0025] Among them, 1-1 is a pestle, 1-2 is a quartz glass container, 1-3 is a hanging piece, 1-4 is a counterweight, and 1-5 is a microphone.

[0026] 1 is a bottom plate, 11 is a container, 111 is a bottom disc, 112 is a protective plate, 113 is an anti-skid hole, 114 is a spherical cavity, and 12 is a vertical rod.

[0027] 2 is a motor, 21 is a disc, and 22 is a connecting rod.

[0028] 3 is a sliding assembly, 31 is a connecting plate, 32 is an I-shaped seat, 33 is a fixed plate, 34 is a guide rail, 35 is a sliding block, 36 is a T-shaped block, 361 is a connecting piece, 362 is a driving block, 363 is a driving pin, 3631 is a baffle, 3632 is a threaded column, 3634 is a threaded hole, 364 is a limiting piece, 3641 is a hexagonal prism, 3642 is a screw rod, and 37 is a hammering rod.

[0029] 4 is a speed regulating assembly, 41 is a speed regulating knob, and 42 is a power switch.

[0030] The drawings are used to provide further understanding of the utility model, and constitute a part of the specification, are used together with the embodiments of the utility model to explain the utility model, and do not constitute the limitation of the utility model. DETAILED DESCRIPTION

[0031] The technical scheme in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model, obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments; based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor are within the protection scope of the utility model.

[0032] As Figures 2-8As shown, the utility model provides a kind of sand sounding device, including bottom plate 1, the upper side edge of bottom plate 1 is fixedly connected with vertical rod 12, vertical rod 12 side is fixedly connected with speed regulating assembly 4, vertical rod 12 upper end bolt connection has motor 2, the output end of motor 2 is fixedly connected with disc 21, disc 21 eccentric rotation is connected with connecting rod 22 on the side away from motor 2, the other end of connecting rod 22 is rotatably connected sliding assembly 3, sliding assembly 3 lower end is provided with hammering stick 37, hammering stick 37 lower end reciprocatingly moves in container 11, container 11 is set on bottom plate 1, container 11 and bottom plate 1 between being provided with guard plate 112, container 11 is internally provided with sand.As a kind of preferred, container 11 can be cup body, barrel body or other container to meet the experimental use requirement.

[0033] by motor 2 drives disc 21 rotation, disc 21 drives connecting rod 22 reciprocatingly moves, connecting rod 22 drives the reciprocating up-down movement of the hammering stick 37 of sliding assembly 3 lower end, hammering stick 37 is hammered to the sand in container 11, and the sound of required frequency is emitted.

[0034] Further, speed regulating assembly 4 front is provided with power switch 42, and power switch 42 upper side rotation is provided with speed regulating knob 41.By power switch 42 control circuit break of motor 2, rotation speed regulating knob 41 control motor speed, motor speed adjustment method is prior art, for example: direct torque control, change voltage control, use frequency converter control, change current control etc.

[0035] Further, sliding assembly 3 includes I-shaped seat 32, and the bottom of I-shaped seat 32 is provided with connecting plate 31, and connecting plate 31 is bolted on the side of vertical rod 12, and the top of I-shaped seat 32 is provided with fixed plate 33, and the side away from vertical rod 12 of fixed plate 33 is fixedly connected with two vertical guide rails 34, and the two guide rails 34 are slidably connected with sliding block 35, and sliding block 35 is fixedly connected with T-shaped block 36, and T-shaped block 36 includes connecting piece 361, and the upper side of connecting piece 361 is provided with driving block 362, and the side away from connecting piece 361 of driving block 362 is rotatably connected with the end of connecting rod 22, and the lower side of driving block 362 is threadedly connected with hammering stick 37.By the setting of guide rail 34 and sliding block 35, the moving direction of driving block 362 and hammering stick 37 can be guided and limited, so that the movement of hammering stick 37 is more stable, and the movement of hammering stick 37 is more smooth.

[0036] Further, the connecting rod 22 is provided with through holes at the upper and lower ends, and driving pins 363 are rotatably arranged in the two through holes, the driving pins 363 are bolted with limiting sheets 364 at the ends, the upper end of the driving pin 363 is fixedly connected with an eccentric connection on the disc 21 away from the limiting sheet 364, and the lower end of the driving pin 363 is fixedly connected with the driving block 362 away from the limiting sheet 364. Through the arrangement of the driving pin 363 and the limiting sheet 364, the connecting rod 22 can be smoothly connected with the disc 21 and the driving block 362, and the disconnection of the connecting rod 22 and the driving pin 363 can be prevented.

[0037] Further, the driving pin 363 is provided with a threaded hole 3634 at one end, the other end of the driving pin 363 is provided with a baffle 3631, and the side of the baffle 3631 away from the threaded hole 3634 is provided with a threaded column 3632. Through the arrangement of the baffle 3631, the driving pin 363 can be limited, and the positioning between the driving pin 363 and the driving block 362 can be realized, and the connecting rod 22 can be limited.

[0038] Further, the limiting sheet 364 is provided with a hexagonal prism 3641 on one side, and a screw rod 3642 is arranged on the other side. Through the arrangement of the screw rod 3642, the connection and fixation between the limiting sheet 364 and the driving pin 363 can be realized, and through the arrangement of the hexagonal prism 3641, the fixed connection of the limiting sheet 364 can be facilitated.

[0039] Further, the container 11 is provided with a bottom disc 111 at the bottom, the bottom disc 111 is fixedly connected with a protective plate 112, and the bottom surface of the protective plate 112 protrudes the bottom surface of the bottom disc 111 by 1mm. The protective plate 112 can be made of polystyrene foam plastic plate to realize the protection function, and in addition, through the protrusion of the bottom surface of the protective plate 112 from the bottom disc 111, the movement of the container 11 can be prevented, and the shock absorption function can be realized.

[0040] Further, the bottom surface of the protective plate 112 is provided with a plurality of anti-skid holes 113.

[0041] Further, the bottom of the inner cavity of the container 11 is provided with a semicircular spherical spherical cavity 114. Through the arrangement of the spherical cavity 114, when the hammering rod 37 hits the sand, the sand can move along the spherical cavity 114, and the overturning movement of the sand can be realized.

[0042] The physical map of the utility model is as follows Figure 9As shown, the main frequency range of the interference noise is above 1500Hz, and the sound generating device makes the main frequency of the sand booming signal within 1000Hz. Therefore, the interference noise can be eliminated by using low-pass filtering technology. By setting the speed regulating assembly 4 and the motor 2, the speed of the motor 2 can be controlled by the speed regulating assembly 4, thereby controlling the hammering frequency of the hammering rod 37, and the hammering frequency control and change of the hammering rod 37 on the sand can be realized, so that the hammering frequency is stable, and thus the sound generating device can meet the needs of different experimental conditions and improve the versatility of the sound generating device.

[0043] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A sand-singing device comprising a base plate (1), characterised in that: The bottom plate (1) upper side edge fixedly connected with vertical rod (12), the vertical rod (12) side fixedly connected with speed regulation assembly (4), vertical rod (12) upper end bolted with motor (2), the output of the motor (2) fixedly connected with disc (21), the disc (21) away from the side of the motor (2) eccentric rotationally connected with connecting rod (22), the other end of the connecting rod (22) rotationally connected with sliding assembly (3), the sliding assembly (3) lower end is provided with hammering stick (37), the hammering stick (37) lower end reciprocatingly moves in the container (11), the container (11) is provided on the bottom plate (1), the container (11) and the bottom plate (1) between the setting is provided with the baffle (112), the container (11) is internally provided with sand.

2. A sand-singing device according to claim 1, characterized in that: The speed regulation assembly (4) front side is provided with power switch (42), the power switch (42) upper side rotationally arranged speed regulation knob (41).

3. A device for amplifying the sound of sand dunes according to claim 2, characterized in that: The sliding assembly (3) includes the work shape seat (32), the work shape seat (32) bottom is provided with the connecting plate (31), the connecting plate (31) is bolted on the side of the vertical rod (12), the work shape seat (32) top is provided with fixed plate (33), the fixed plate (33) away from the side of the vertical rod (12) fixedly connected with two vertical setting guide rails (34), two the guide rail (34) is all slidingly connected with the sliding block (35), the sliding block (35) is fixedly connected with T-shaped block (36), the T-shaped block (36) includes connecting piece (361), the connecting piece (361) upper side is provided with drive block (362), the drive block (362) away from the side of the connecting piece (361) rotationally connected with the end of connecting rod (22), the drive block (362) lower side is threadedly connected with hammering stick (37).

4. A device according to claim 3, wherein: The connecting rod (22) upper and lower ends are provided with through holes, two the through hole is all rotationally provided with drive pin (363), the drive pin (363) end bolted with limit piece (364), the drive pin (363) far away from the limit piece (364) one end of the upper end is fixed eccentrically connected in the disc (21), the drive pin (363) far away from the limit piece (364) one end of the lower end is fixedly connected in the drive block (362).

5. A device according to claim 4, wherein: One end of the drive pin (363) is provided with a threaded hole (3634), the other end of the drive pin (363) is provided with a baffle (3631), the side of the baffle (3631) away from the threaded hole (3634) is provided with a threaded column (3632).

6. A device for amplifying the sound of sand dunes according to claim 5, characterized in that: The side of the limit piece (364) is provided with a hexagonal prism (3641), the other side of the limit piece (364) is provided with a screw rod (3642).

7. A sand-singing device according to claim 1, wherein: The bottom of the container (11) is provided with a bottom disc (111), the bottom disc (111) is fixedly connected with a protective plate (112), and the bottom surface of the protective plate (112) protrudes the bottom surface of the bottom disc (111) by 1mm.

8. A device according to claim 7, wherein: The bottom surface of the protective plate (112) is provided with a plurality of anti-skid holes (113) uniformly distributed.

9. A device according to claim 8, wherein: The inner cavity of the container (11) is provided with a semicircular spherical cavity (114) at the bottom.

10. A device for amplifying the sound of sand dunes according to any of claims 1-9, characterized in that: The container (11) is a cup or a bucket, and the protective plate (112) is a polystyrene foam plastic plate.

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