CN220912470U - Noise detection machine - Google Patents

Abstract

The utility model discloses a noise detection machine, which comprises a machine case, wherein a testing component is arranged on the inner top wall of the machine case, a carrier module is arranged on the inner bottom wall of the machine case, and the testing component is positioned right above the carrier module. The intelligent household appliance noise under different running states can be collected, and the millisecond-level acoustic survey is achieved in the running period of the product through comparison of different acoustic frequency spectrum curves. The inconsistency of manual judgment is solved, and the accurate identification of abnormal products can be achieved. By outputting different noise spectrums, the process, such as the lack of coaxiality of product assembly, can be improved in time. Reducing the reworking waste.

Description

Noise detection machine

Technical Field

The utility model belongs to the technical direction of noise detection of kitchen appliances, and particularly relates to a noise detector.

Background

The intelligent household appliance comprises a juicer, a soymilk machine, a wall breaking machine and the like, the intelligent household appliance is similar in appearance, the inside of the household appliance is provided with an ultra-high speed motor, and parts corresponding to the appliance are respectively driven to rotate through the ultra-high speed motor, so that ultra-silent kitchen appliance characteristics are realized, for example, the wall breaking machine is used for connecting the ultra-high speed motor inside the wall breaking machine with a blade, so that the blade can rapidly rotate to break food, when the blade bumps into hard objects, the wall breaking machine can generate quite large noise, and after the intelligent household appliance is produced and assembled, assembly noise of gaps can be generated under the condition that coaxiality of assembled components is different. And the production environment is noisy, the operation noise comprehensive detection system is required to detect the operation noise of the household appliances, so that whether the operation noise of the appliances reaches the standard is checked, the existing detection system is used for manually placing intelligent household appliances and operating through a manual control system, the traditional manual collocation decibel meter detection is limited by the detection principle, the static environment and the instrument can not be guaranteed to be only used for testing continuous noise values, the traditional noise detection omission factor of the products is high, the existing detection system cannot be compatible with the detection of different appliances with similar appearance, and the functionality of the existing detection system is reduced.

Disclosure of utility model

The present utility model is directed to a noise detector for solving the above-mentioned problems of the prior art.

In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a noise detection machine, includes the quick-witted case, test assembly is installed to the inside roof of machine case, carrier module is installed to the inside diapire of machine case, test assembly is located the carrier module directly over, button selection assembly is installed at the top of carrier module.

The utility model further discloses that the front surface of the chassis is provided with the lifting door assembly, and one side, close to the chassis, of the lifting door assembly and the inner wall of the chassis are both provided with sound absorbing plates.

The utility model further discloses that the lifting door assembly comprises a sliding rail and an embedded protective door, wherein the sliding rail is arranged on the front surface of the chassis, the embedded protective door is connected inside the sliding rail in a sliding manner, and the embedded protective door is arranged in a hollow manner.

The utility model further discloses that the test assembly comprises a support, the support is arranged on the inner top wall of the chassis, the bottom of the support is connected with a sliding rod in a sliding manner, the outer side wall of the sliding rod is connected with a sliding seat in a sliding manner, the bottom of the sliding seat is connected with a fixing clamp in a sliding manner, and one end of the fixing clamp is provided with a microphone in a penetrating manner.

The utility model further discloses that the carrier module comprises a base, wherein the base is arranged on the inner bottom wall of the chassis, the top of the base is provided with a guide rail, the interior of the guide rail is connected with a frame in a sliding manner, the top of the base is provided with a pen-shaped air cylinder, and a piston rod of the pen-shaped air cylinder is connected with the inner wall of the frame.

The utility model further discloses that the key selection assembly comprises a support frame, wherein the support frame is arranged at the top of the base, an adjusting cylinder is arranged at the top of the support frame, a connecting block is arranged on a piston rod of the adjusting cylinder, one side of the connecting block is connected with a sliding plate, the sliding plate is connected to the top of the support frame in a sliding manner, a vertical cylinder is arranged at the top of the sliding plate, a piston rod of the vertical cylinder is connected with a telescopic frame, and two vertical elastic contacts are arranged in the telescopic frame.

The utility model further discloses that one side of the base is provided with the linear guide rail, the top of the linear guide rail is connected with the horizontal cylinder in a sliding manner, a piston rod of the horizontal cylinder is connected with the adjusting frame, the bottom of the adjusting frame is connected with the outer side wall of the horizontal cylinder in a sliding manner, and one side of the adjusting frame is uniformly provided with the horizontal elastic contact.

Compared with the prior art, the beneficial effects that reach are: in the present utility model, the number of the components,

The fixed frequency noise affecting the sense of the person is identified by the acoustic probe, and the output frequency spectrum is analyzed by the acoustic algorithm. The intelligent household appliance noise under different running states can be collected, and the millisecond-level acoustic survey is achieved in the running period of the product through comparison of different acoustic frequency spectrum curves. The inconsistency of manual judgment is solved, and the accurate identification of abnormal products can be achieved. By outputting different noise spectrums, the process, such as the lack of coaxiality of product assembly, can be improved in time. Reducing the reworking waste.

Through setting up test assembly, through the hookup location of mounting fixture and slide, slide through the slide in the slip of slide bar, the slide bar slides on the support to realize that the microphone is in XYZ three epaxial adjustment position, through above-mentioned adjustment, change the distance between microphone and the intelligent household electrical appliances, with this noise that gathers and detect the produced of intelligent household electrical appliances, and pickup scope compatibility 35db-139db has greatly increased the test accuracy of system.

Through setting up button select assembly, through vertical elastic contact and horizontal elastic contact cooperation promptly, trigger the button on intelligent household electrical appliances top and the outer wall respectively to this can make intelligent household electrical appliances adjust to different running state, and the microphone can gather the intelligent household electrical appliances noise under the different running state.

Through setting up carrier and profile modeling clamp block, two profile modeling clamp blocks and carrier cooperation constitution quick change carrier base, this quick change carrier base can with bear the seat quick assembly disassembly to profile modeling clamp block can slide on the carrier and adjust the interval, not only reaches the purpose of quick replacement intelligent household electrical appliances base when different intelligent household electrical appliances are examined, can reach the purpose that same kind of carrier base can compatible different intelligent household electrical appliances simultaneously.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a schematic diagram of a connection structure of a key selection assembly of a carrier module according to the present utility model;

FIG. 4 is a schematic diagram of a test assembly of the present utility model;

FIG. 5 is a schematic diagram of a carrier module according to the present utility model;

FIG. 6 is a schematic diagram of the upper structure of the key selection assembly of the present utility model;

FIG. 7 is a schematic view showing a lower portion structure of a key selection assembly according to the present utility model;

fig. 8 is a schematic diagram of a test case of the present utility model.

In the figure: 1. a chassis; 2. a lifting door assembly; 21. a slide rail; 22. a protective door is embedded; 3. a sound absorbing panel; 4. a testing component; 41. a bracket; 42. a slide bar; 43. a slide; 44. a fixing clamp; 45. a microphone; 5. a carrier module; 51. a base; 52. a guide rail; 53. a frame; 54. a pen-shaped cylinder; 6. a key selection component; 61. a support frame; 62. a slip plate; 63. a vertical cylinder; 64. adjusting a cylinder; 65. a connecting block; 66. a vertical spring contact; 67. a telescopic frame; 68. a linear guide rail; 69. a horizontal cylinder; 691. an adjusting frame; 692. a horizontal spring contact.

Detailed Description

The technical scheme of the present utility model is further described in non-limiting detail below with reference to the preferred embodiments and the accompanying drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-8, the present utility model provides the following technical solutions:

Example 1

The noise detector comprises a case 1, wherein a lifting door component 2 is arranged on the front surface of the case 1, a sound absorbing plate 3 is arranged on one side, close to the case 1, of the lifting door component 2 and the inner wall of the case 1, the sound absorbing plate 3 is made of multiple layers of sound-insulating materials, namely 2mm baking varnish sheet metal, a resistance adhesive layer, a sound-insulating felt, flat sound-insulating cotton and wave sound-absorbing cotton in sequence from outside to inside, the sound-insulating frequency is 20Hz-20KHz, all data ports and power signals adopt EMI filters, the sound-insulating effect of the sound-insulating plate 3 can control the body noise to be less than or equal to 50 dB in terms of 30 dB/internal noise, the ring noise is 85 db+/-2, the outside is a steel plate shell, the data ports are reserved in the interior of the sound-insulating plate, a connecting circuit is convenient, and the lifting door component 2 is matched with the case 1 and the sound absorbing plate 3 to seal the interior of the case 1 to form an isolation cabin;

The lifting door assembly 2 comprises a sliding rail 21 and an embedded protective door 22, the sliding rail 21 is arranged on the front surface of the case 1, the embedded protective door 22 is connected inside the sliding rail 21 in a sliding manner, the embedded protective door 22 is arranged in a hollow manner, the thickness of plates of the embedded protective door 22 and the case 1 is 220mm, the plates are made of 304 metal plates, a driving mechanism is arranged inside the sliding rail 21, the driving mechanism can be a lifting cylinder, the driving end of the driving mechanism is not particularly limited, namely, the driving mechanism drives the embedded protective door 22 to slide inside the sliding rail 21, so that the lifting of the embedded protective door 22 is controlled, and the purpose of sealing or opening the case 1 is achieved;

The test assembly 4 is installed to the inside roof of machine case 1, test assembly 4 is used for absorbing and detecting the noise in the machine case 1, test assembly 4 includes support 41, support 41 installs the inside roof of machine case 1, the bottom sliding connection of support 41 has slide bar 42, slide bar 42's lateral wall sliding connection has slide 43, slide 43's bottom sliding connection has mounting fixture 44, microphone 45 is worn to install to one end of mounting fixture 44, form adjustable frame through support 41, slide bar 42 and slide 43 cooperation, namely microphone 45 is connected with slide 43 through mounting fixture 44, and through the hookup location of mounting fixture 44 with slide 43, slide bar 42 slides on support 41 through the slip of slide 43 on slide bar 42, thereby realize microphone 45 and adjust the position on XYZ three axiss, through above-mentioned adjustment, change the distance between microphone 45 and the intelligent household electrical appliances, thereby gather and detect the noise that the intelligent household electrical appliances produced, and pickup range 35db-139db, front surface mounting at machine case 1 has the display controller, the information that microphone 45 gathered and detected is passed through the wire and is compatible to the display controller.

The carrier module 5 is installed to the inside diapire of quick-witted case 1, and test module 4 is located directly over carrier module 5, and carrier module 5 includes base 51, and base 51 installs in the inside diapire of quick-witted case 1, and guide rail 52 is installed at the top of base 51, and the inside of guide rail 52 slides and is connected with frame 53, and pen cylinder 54 is installed at the top of base 51, and the piston rod of pen cylinder 54 is connected with the inner wall of frame 53, and pen cylinder 54 is used for driving frame 53 and slides on guide rail 52 to adjust the position of frame 53 in quick-witted case 1.

The key selection assembly 6 comprises a support frame 61, the support frame 61 is arranged at the top of the base 51, an adjusting cylinder 64 is arranged at the top of the support frame 61, a connecting block 65 is arranged on a piston rod of the adjusting cylinder 64, a sliding plate 62 is connected to one side of the connecting block 65, the sliding plate 62 is slidably connected to the top of the support frame 61, a vertical cylinder 63 is arranged at the top of the sliding plate 62, a telescopic bracket 67 is connected to a piston rod of the vertical cylinder 63, two vertical elastic contacts 66 are arranged in the telescopic bracket 67, and the adjusting cylinder 64 is used for pushing the connecting block 65 and the sliding plate 62 to slide at the top of the support frame 61, so that the positions of the vertical cylinder 63, the telescopic bracket 67 and the vertical elastic contacts 66 are synchronously adjusted, the vertical elastic contacts 66 are enabled to move to be right above an intelligent household electrical appliance, the telescopic bracket 67 and the vertical elastic contacts 66 are driven to move downwards through the vertical cylinder 63, so that the vertical elastic contacts 66 trigger keys at the top of the intelligent household electrical appliance, and the working condition of the intelligent household electrical appliance is adjusted;

the linear guide 68 is installed to one side of base 51, linear guide 68's top sliding connection has horizontal cylinder 69, horizontal cylinder 69's piston rod is connected with alignment jig 691, alignment jig 691's bottom sliding connection is in horizontal cylinder 69's lateral wall, horizontal elastic contact 692 is evenly installed to one side of alignment jig 691, when carrier module 5 drove intelligent household electrical appliances and remove quick-witted incasement 1, horizontal elastic contact 692 just is in intelligent household electrical appliances's lateral wall one side, horizontal cylinder 69's piston rod extension this moment, alignment jig 691 and horizontal elastic contact 692 are synchronous to intelligent household electrical appliances's lateral wall removal, horizontal elastic contact 692 is to intelligent household electrical appliances's lateral wall one side's button selection triggering, this process is used simultaneously with vertical elastic contact 66, make intelligent household electrical appliances top and button on the outer wall control adjustment simultaneously to intelligent household electrical appliances, thereby can make intelligent household electrical appliances adjust to different running state, microphone 45 can gather intelligent household electrical appliances noise under the different running state.

Before the device is used, an adjustable frame is formed by matching the bracket 41, the sliding rod 42 and the sliding seat 43, namely, the microphone 45 is connected with the sliding seat 43 through the fixed clamp 44, and the distance between the microphone 45 and an intelligent household appliance is changed through the adjustment by sliding the sliding seat 43 on the sliding rod 42 and sliding the sliding rod 42 on the bracket 41 through the connection position of the fixed clamp 44 and the sliding seat 43, so that the position of the microphone 45 is adjusted on three XYZ axes; when the intelligent household appliance is used, the display controller automatically controls the device, the intelligent household appliance is conveyed to the water injection valve position through the manipulator, namely, the intelligent household appliance is conveyed to the position of the machine case 1 through the manipulator after water injection is completed, a driving mechanism is installed in the sliding rail 21, the driving end of the driving mechanism is connected with the embedded protective door 22, the display controller controls the driving mechanism to drive the embedded protective door 22 to slide in the sliding rail 21, so that the lifting of the embedded protective door 22 is controlled, a sliding cylinder is installed in the frame 53, the pen-shaped cylinder 54 is used for driving the frame 53 to slide on the guide rail 52, so that the position of the frame 53 in the machine case 1 is adjusted, when the carrier module 5 drives the intelligent household appliance to move into the machine case 1, the horizontal elastic contact 692 is just positioned on one side of the outer side wall of the intelligent household appliance, the display controller controls the adjusting cylinder 64 to push the connecting block 65 and the sliding plate 62 to slide on the top of the supporting frame 61, so that the vertical cylinder 63, the telescopic bracket 67 and the vertical elastic contact 66 are synchronously adjusted, the vertical elastic contact 66 is enabled to slide in the sliding direction of the sliding rail 21, the lifting of the embedded protective door 22 is controlled, the sliding of the vertical elastic contact 66 is enabled to slide above the intelligent household appliance, the vertical elastic contact 63 is driven by the vertical cylinder 67 and the vertical elastic contact 66 and the intelligent household appliance is triggered, so that the intelligent household appliance can be adjusted; meanwhile, the display controller controls the piston rod of the horizontal air cylinder 69 to extend, the adjusting frame 691 and the horizontal elastic contact 692 synchronously move towards the outer side wall of the intelligent household electrical appliance, the horizontal elastic contact 692 selectively triggers a key on one side of the outer side wall of the intelligent household electrical appliance, the process and the vertical elastic contact 66 are simultaneously used, so that the keys on the top and the outer wall of the intelligent household electrical appliance simultaneously control and adjust the intelligent household electrical appliance, the intelligent household electrical appliance can be adjusted to different running states, the microphone 45 can collect noises of the intelligent household electrical appliance in the different running states, and meanwhile, information is transmitted to the display controller for display; and (3) outputting an analysis result through software data analysis, displaying the analysis result on a display controller, then pouring water after the intelligent household appliance product is taken out by manually unpacking, and recording the data by the display controller.

Example two

A noise detector adopts the following steps:

The method comprises the following steps that firstly, before equipment is used, a microphone 45 is connected with a sliding seat 43 through a fixed clamp 44, and the distance between the microphone 45 and an intelligent household appliance is changed through the connection position of the fixed clamp 44 and the sliding seat 43 and the sliding of the sliding seat 43 on a sliding rod 42 and the sliding rod 42 sliding on a bracket 41;

Step two, the display controller automatically controls the device, the intelligent household electrical appliance is conveyed to a water injection valve position through a mechanical arm to automatically inject water, namely, the intelligent household electrical appliance is conveyed to a position of a machine case 1 through the mechanical arm after the water injection is completed, a driving mechanism is arranged in the sliding rail 21, a driving end of the driving mechanism is connected with the embedded protective door 22, and the display controller controls the driving mechanism to drive the embedded protective door 22 to slide in the sliding rail 21, so that the embedded protective door 22 is controlled to be lifted;

Third, when the carrier module 5 drives the intelligent household electrical appliance to move into the case 1, the horizontal elastic contact 692 is just positioned on one side of the outer side wall of the intelligent household electrical appliance, the display controller controls the adjusting cylinder 64 to push the connecting block 65 and the sliding plate 62 to slide on the top of the supporting frame 61, so that the positions of the vertical cylinder 63, the telescopic bracket 67 and the vertical elastic contact 66 are synchronously adjusted, the vertical elastic contact 66 is caused to move right above the intelligent household electrical appliance, the telescopic bracket 67 and the vertical elastic contact 66 are driven to move downwards through the vertical cylinder 63, and the vertical elastic contact 66 is caused to trigger a key on the top of the intelligent household electrical appliance, so that the working condition of the intelligent household electrical appliance is adjusted;

Step four, the display controller controls the extension of the piston rod of the horizontal cylinder 69, the adjusting frame 691 and the horizontal elastic contact 692 synchronously move to the outer side wall of the intelligent household electrical appliance, the horizontal elastic contact 692 selectively triggers a key on one side of the outer side wall of the intelligent household electrical appliance, the process is simultaneously used with the vertical elastic contact 66, the keys on the top and the outer wall of the intelligent household electrical appliance simultaneously control and adjust the intelligent household electrical appliance, so that the intelligent household electrical appliance can be adjusted to different running states, the microphone 45 can collect noises of the intelligent household electrical appliance in the different running states and simultaneously transmit information to the display controller for display;

And fifthly, analyzing through software data, outputting an analysis result, displaying the analysis result on a display controller, then pouring water after the intelligent household appliance product is taken out by manually unpacking, and recording the data by the display controller.

Example III

A noise detector, test cases are as follows:

fig. 8 (1) is a diagram showing a noise sound pressure spectrum of a detector, wherein the detector has a spectrum type comparing function (unit 0.1 s/db), and the waveform comparison and the area time variation difference can be selected to judge whether the detector is qualified or not by judging noise or abnormal noise, and the detector also has a capacity counting function, and can also select a noise comparing function to detect products through noise amplitude comparison.

Fig. 8 (2) is a sound pressure spectrum test result of the wall breaking machine under the environment of the sound deadening chamber 38 db: steady state 65db + 1.5db means that the noise is 63.5db-66.5db in steady state use.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Finally, it should be pointed out that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting. Although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may be modified or some technical features may be equivalently replaced, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (7)

1. Noise detection machine, including quick-witted case (1), its characterized in that: the test device is characterized in that a test assembly (4) is arranged on the inner top wall of the chassis (1), a carrier module (5) is arranged on the inner bottom wall of the chassis (1), the test assembly (4) is located right above the carrier module (5), and a key selection assembly (6) is arranged at the top of the carrier module (5).

2. A noise detector according to claim 1, wherein: the front surface of the case (1) is provided with a lifting door assembly (2), and one side, close to the case (1), of the lifting door assembly (2) and the inner wall of the case (1) are both provided with sound absorbing plates (3).

3. A noise detector according to claim 2, wherein: the lifting door assembly (2) comprises a sliding rail (21) and an embedded protective door (22), the sliding rail (21) is arranged on the front surface of the chassis (1), the embedded protective door (22) is connected to the sliding rail (21) in a sliding manner, and the embedded protective door (22) is arranged in a hollow mode.

4. A noise detector according to claim 1, wherein: the testing component (4) comprises a support (41), the support (41) is mounted on the inner top wall of the chassis (1), a sliding rod (42) is connected to the bottom of the support (41) in a sliding mode, a sliding seat (43) is connected to the outer side wall of the sliding rod (42) in a sliding mode, a fixing clamp (44) is connected to the bottom of the sliding seat (43) in a sliding mode, and a microphone (45) is installed at one end of the fixing clamp (44) in a penetrating mode.

5. A noise detector according to claim 1, wherein: the carrier module (5) comprises a base (51), the base (51) is arranged on the inner bottom wall of the chassis (1), a guide rail (52) is arranged at the top of the base (51), a frame (53) is connected with the inside of the guide rail (52) in a sliding mode, a pen-shaped air cylinder (54) is arranged at the top of the base (51), and a piston rod of the pen-shaped air cylinder (54) is connected with the inner wall of the frame (53).

6. A noise detector according to claim 5, wherein: the button selection assembly (6) comprises a support frame (61), the top in base (51) is installed in support frame (61), adjust cylinder (64) are installed at the top of support frame (61), connecting block (65) are installed to the piston rod of adjust cylinder (64), one side of connecting block (65) is connected with sliding plate (62), sliding plate (62) sliding connection is in the top of support frame (61), vertical cylinder (63) are installed at the top of sliding plate (62), the piston rod of vertical cylinder (63) is connected with expansion bracket (67), two vertical elastic contact (66) are installed to the internally mounted of expansion bracket (67).

7. A noise detector according to claim 6, wherein: the linear guide rail (68) is installed on one side of the base (51), the horizontal cylinder (69) is connected to the top of the linear guide rail (68) in a sliding mode, the adjusting frame (691) is connected to a piston rod of the horizontal cylinder (69), the bottom of the adjusting frame (691) is connected to the outer side wall of the horizontal cylinder (69) in a sliding mode, and the horizontal elastic contact (692) is evenly installed on one side of the adjusting frame (691).