Noise sensor for dust noise on-line monitoring system

Abstract

The utility model discloses a noise sensor for a dust noise on-line monitoring system, which comprises a machine body and a top cover arranged at the upper end of the machine body, a connecting end is arranged on the upper side of the top cover, and a sound absorption sponge is arranged on the outer wall of the upper end of the connecting end to receive noise fluctuation. A display screen is embedded in the outer wall of the front end of the machine body to display noise decibels and threshold values, a base is fixedly connected to the outer wall of the lower end of the machine body, a mounting plate is arranged on the rear side of the machine body, and a limiting strip is fixedly connected to the outer wall of the left end of the mounting plate; a clamping groove is formed in the outer wall of the right end of the top cover so as to be clamped with a limiting strip to fix and limit the position of the machine body, and by mounting the mounting plate, the sliding strip and the clamping groove, the situation that noise in the dust environment needs to be detected in one area for a long time, and a detector needs to hold the machine for a long time is avoided; and meanwhile, the situation that the noise sensor falls or is lost when the noise sensor is placed at an independent position for detection can be avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field related to noise sensors, and in particular relates to a noise sensor used in a dust noise online monitoring system. Background Art

[0002] The automatic noise monitoring instrument includes sound pressure sensor, analog converter and digital signal processor. The sound pressure sensor is used to measure the sound pressure level of noise and convert the noise into an electrical signal. The analog converter converts the analog signal output by the sound pressure sensor into a digital signal. The digital signal processor processes and analyzes the digital signal according to a specific algorithm to obtain the measurement results of the noise parameters. However, when the noise sensor detects dust noise, the sensor needs to be held by a person at the place where the dust noise occurs for detection, which causes the detection personnel to perform detection in a dusty environment, posing a hidden danger to the health of the detection personnel. Utility Model Content

[0003] The utility model aims to provide a noise sensor for a dust noise online monitoring system to solve the problem in the background technology that during the process of detecting dust noise by the noise sensor, the sensor needs to be held by a person at the location where the dust noise occurs for detection.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a noise sensor for a dust noise online monitoring system, comprising a body and a top cover installed at the upper end of the body;

[0005] A connection end is provided on the upper side of the top cover;

[0006] The upper outer wall of the connecting end is provided with a sound-absorbing sponge to absorb noise fluctuations;

[0007] A display screen is embedded inside the front end outer wall of the fuselage to display the noise decibel and threshold, and a base is fixedly connected to the lower end outer wall of the fuselage;

[0008] A mounting plate is arranged at the rear side of the fuselage, a left end outer wall of the mounting plate is fixedly connected to a limiting strip, and a slot is provided inside the right end outer wall of the top cover to be engaged with the limiting strip to fix and limit the position of the fuselage.

[0009] Preferably, a sliding groove that passes through from top to bottom is opened inside the right end outer wall of the base to clamp and limit the position of the fuselage between the limit bar, and fixing screws that pass through backwards are set at the four corners of the front end outer wall of the mounting plate to connect and fix the mounting plate to the external mounting position to limit the position.

[0010] Preferably, the outer walls at both left and right ends of the limit strip are provided with clamping strips, and the clamping slot and the sliding slot are provided with positioning slots on both left and right sides.

[0011] Preferably, a pull bar is provided between the base and the top cover, and opposite surfaces of the base and the top cover close to the right side are fixedly connected with fixing blocks.

[0012] Preferably, the interiors of the plurality of fixing blocks are all drivingly connected with positioning shafts to limit the positions of the pull rods, and the front sides of the positioning shafts are clamped with positioning sleeves to limit the positions of the positioning shafts.

[0013] Preferably, a power cord is plugged into the outer wall of the lower end of the base to provide power to the working elements inside the fuselage, and the power cord is electrically connected to an external power source.

[0014] Preferably, a control button a is provided on the front outer wall of the fuselage, and a control button b is provided on the upper side of the control button a.

[0015] Preferably, the upper outer wall of the top cover is fixedly connected with a fixed end to limit the position of the connection end, and the right outer wall of the fuselage is embedded with a heat dissipation and dustproof net to prevent dust from entering the interior of the fuselage.

[0016] Compared with the prior art, the utility model provides a noise sensor for an online dust noise monitoring system, which has the following beneficial effects:

[0017] 1. By installing the mounting plate, slide bar and slot, when the noise sensor is fixed in a dusty environment to detect the noise of the current environment, the mounting plate can be fixed at an appropriate distance from the noise occurrence place, and the slot on the right side of the top cover and the slide bar fixed on the left end of the mounting plate can be snapped and fixed to quickly complete the fixation of the fuselage. When the noise sensor needs to be removed, the fuselage can be quickly removed and moved for use by grabbing and pulling up, avoiding the need to detect noise in a dusty environment in one area for a long time, requiring the detection personnel to hold it for a long time, and at the same time, it can avoid the noise sensor from falling or being lost when placed in a separate position for detection.

[0018] 2. By installing the pull rod and the positioning axis, when the monitoring personnel hold the noise sensor to conduct detection in different areas in the dust environment, they can pass their hands through the pull rod and grasp the fuselage to perform detection operations. When the hand grasping the fuselage performs other work, it can be hung at the wrist through the pull rod, thereby freeing the hand for other work, avoiding the lack of suitable temporary storage of the noise sensor in the detection environment, and avoiding the noise sensor from slipping out of the hand and causing it to fall. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The utility model is a schematic diagram of the structure of a noise sensor used in an online dust noise monitoring system.

[0020] Figure 2The utility model is a side view structural schematic diagram of a noise sensor used in a dust noise online monitoring system.

[0021] Figure 3 It is a schematic diagram of the local structure of the chute area in a top view of the utility model.

[0022] Figure 4 It is a schematic diagram of the partial structure of the fuselage area from a side view of the present invention.

[0023] Figure 5 It is a schematic diagram of the partial structure of the side cross-section of the pull rod area of ​​the utility model.

[0024] In the figure: 1. Body; 2. Heat dissipation and dustproof net; 3. Mounting plate; 4. Base; 5. Power cord; 6. Control button a; 7. Control button b; 8. Display screen; 9. Top cover; 10. Fixed end; 11. Connecting end; 12. Sound-absorbing sponge; 13. Fixing screw; 14. Slot; 15. Limiting strip; 16. Slide slot; 17. Pull strip; 18. Positioning sleeve; 19. Fixed block; 20. Positioning shaft. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] The utility model provides Figure 1-4 A noise sensor for a dust noise online monitoring system shown includes a body 1 and a top cover 9 installed on the upper end of the body 1;

[0027] A connection end 11 is provided on the upper side of the top cover 9;

[0028] The upper outer wall of the connecting end 11 is provided with a sound-absorbing sponge 12 to absorb noise fluctuations;

[0029] A display screen 8 is embedded inside the front end outer wall of the fuselage 1 to display the noise decibel and threshold value. The lower end outer wall of the fuselage 1 is fixedly connected with a base 4. When detecting noise in a dusty environment, the fuselage 1 can be held to receive noise through the sound-absorbing sponge 12 and transmit the sound value to the inside of the fuselage 1. The noise decibel value is converted into digital data through the corresponding electrical components inside the fuselage 1 and displayed on the display screen 8. At the same time, the value can be stored by transmitting to the terminal and can be printed out as a paper document for viewing;

[0030] A mounting plate 3 is provided on the rear side of the fuselage 1, and the left end outer wall of the mounting plate 3 is fixedly connected to the limiting strip 15, and a card slot 14 is opened inside the right end outer wall of the top cover 9 to be clamped with the limiting strip 15 to fix and limit the position of the fuselage 1. When noise monitoring is required in a unique dusty environment, the mounting plate 3 can be fixed at an appropriate distance from the noise source for installation, and then the card slot 14 opened on the right side of the top cover 9 and the limiting strip 15 can be clamped to complete the fixation, thereby avoiding the situation where the detection personnel conduct noise monitoring by hand in the dusty environment for a long time.

[0031] like Figure 2 and Figure 3 As shown, a vertically penetrating slide groove 16 is provided inside the right end outer wall of the base 4 to clamp and limit the position of the fuselage 1 with the limit bar 15, and rearward penetrating fixing screws 13 are provided at the four corners of the front end outer wall of the mounting plate 3 to connect and fix the position of the mounting plate 3 with the external mounting position, and clamping strips are provided on the left and right outer walls of the limit bar 15, and positioning grooves are provided on the left and right sides of the clamping groove 14 and the slide groove 16.

[0032] When installing the fuselage 1, first slide over the limit strip 15 through the slide groove 16 provided on the base 4 for pre-positioning, and then fix the fuselage 1 by engaging between the card slot 14 and the limit strip 15. When taking out the fuselage 1, grasp the fuselage 1 and pull it upwards to remove the fuselage 1. When fixing, the mounting plate 3 is fixed between the fixing screws 13 and the mounting wall.

[0033] like Figure 4 and Figure 5 As shown, a pull rod 17 is arranged between the base 4 and the top cover 9, and a fixing block 19 is fixedly connected to the opposite surfaces of the base 4 and the top cover 9 near the right side, and the interiors of the plurality of fixing blocks 19 are all transmission-connected with a positioning shaft 20 to limit the position of the pull rod 17, and a positioning sleeve 18 is clamped on the front side of the positioning shaft 20 to limit the position of the positioning shaft 20.

[0034] When holding the body 1, the monitoring personnel can pass their hands through the pull strip 17 to grasp the body 1 for holding, and when the hands need to perform other work, the body 1 can be hung on the wrist through the pull strip 17 to free up the hands for other work. The pull strip 17 is made of soft rubber material. During the stretching process, the positioning shaft 20 can be used to assist the pull strip 17 in stretching movement to adapt to the wrist sizes of different users.

[0035] like Figure 1 As shown, a power cord 5 is plugged into the lower outer wall of the base 4 to provide power to the internal working components of the body 1, and the power cord 5 is electrically connected to the external power supply. A control button a6 is provided on the front outer wall of the body 1, and a control button b7 is provided on the upper side of the control button a6.

[0036] The noise sensor is powered on and charged via the power cord 5. The maximum noise alarm threshold can be rotated and the internal data transmission of the body 1 can be controlled via the control button a6. The program dynamics selected by the control button a6 can be confirmed via the control button b7, and the last operation can be returned.

[0037] like Figure 1 As shown, the upper outer wall of the top cover 9 is fixedly connected with a fixed end 10 to limit the position of the connecting end 11, and a heat dissipation and dustproof net 2 is embedded inside the right outer wall of the fuselage 1 to prevent dust from entering the interior of the fuselage 1.

[0038] The connecting end 11 can be fixed by the fixing end 10. When fixing, the connecting end 11 can be fixed by rotating it clockwise between the fixing end 10. The connecting end 11 can be unscrewed by rotating it counterclockwise. When the electrical components inside the body 1 are working, the heat dissipation and dustproof net 2 can be used to dissipate heat and prevent dust from entering the inside of the body 1.

[0039] The implementation principle of this embodiment is: when detecting noise in a dusty environment, the noise can be received by the handheld body 1 through the sound-absorbing sponge 12 and the sound value can be transmitted to the inside of the body 1, and the noise decibel value can be converted into digital data through the corresponding electrical components inside the body 1, and displayed on the display screen 8. At the same time, the value can be stored by transmitting to the terminal, and can be printed out as a paper document for viewing. When it is necessary to monitor noise in a unique dusty environment, the mounting plate 3 can be fixed at an appropriate distance from the noise source for installation, and then the card slot 14 opened on the right side of the top cover 9 and the limit strip 15 can be connected to complete the fixation, which can avoid the situation where the detection personnel hold the noise monitoring in the dusty environment for a long time.

[0040] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A noise sensor for a dust noise online monitoring system, comprising a body (1) and a top cover (9) mounted on the upper end of the body (1); The top cover (9) is provided with a connection end (11) on its upper side; The upper outer wall of the connecting end (11) is provided with a sound-absorbing sponge (12) to absorb noise fluctuations; A display screen (8) is embedded inside the front end outer wall of the fuselage (1) to display noise decibels and thresholds, and a base (4) is fixedly connected to the lower end outer wall of the fuselage (1); Features: A mounting plate (3) is provided on the rear side of the fuselage (1), the left end outer wall of the mounting plate (3) is fixedly connected to a limit strip (15), and a clamping groove (14) is provided inside the right end outer wall of the top cover (9) to clamp with the limit strip (15) to fix and limit the position of the fuselage (1).

2. The noise sensor for the dust noise online monitoring system according to claim 1 is characterized by: The right end outer wall of the base (4) is provided with a vertically penetrating slide groove (16) to engage with the limit strip (15) to limit the position of the fuselage (1), and the four corners of the front end outer wall of the mounting plate (3) are provided with rearwardly penetrating fixing screws (13) to connect and fix the mounting plate (3) with the external mounting position to limit the position of the mounting plate (3).

3. The noise sensor for the dust noise online monitoring system according to claim 1 is characterized by: The outer walls of the left and right ends of the limit strip (15) are both provided with clamping strips, and the left and right sides of the clamping groove (14) and the sliding groove (16) are both provided with positioning grooves.

4. The noise sensor for the dust noise online monitoring system according to claim 1 is characterized by: A pull bar (17) is provided between the base (4) and the top cover (9), and opposite surfaces of the base (4) and the top cover (9) close to the right side are fixedly connected with a fixing block (19).

5. The noise sensor for the dust noise online monitoring system according to claim 4 is characterized by: The interiors of the plurality of fixed blocks (19) are all drivingly connected with positioning shafts (20) to limit the position of the pull rod (17), and the front side of the positioning shaft (20) is clamped with a positioning sleeve (18) to limit the position of the positioning shaft (20).

6. The noise sensor for the dust noise online monitoring system according to claim 1 is characterized by: A power cord (5) is plugged into the outer wall of the lower end of the base (4) to provide power to the internal working elements of the body (1), and the power cord (5) is electrically connected to an external power source.

7. The noise sensor for the dust noise online monitoring system according to claim 1 is characterized by: A control button a (6) is arranged on the front outer wall of the body (1), and a control button b (7) is arranged on the upper side of the control button a (6).

8. The noise sensor for the dust noise online monitoring system according to claim 7 is characterized by: The upper outer wall of the top cover (9) is fixedly connected to a fixed end (10) to limit the position of the connection end (11), and a heat dissipation and dustproof net (2) is embedded inside the right outer wall of the body (1) to prevent dust from entering the inside of the body (1).

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