CN214843610U - Sound level test device with laser positioning function - Google Patents

Abstract

The utility model discloses a take laser positioning sound level test device for transformer or prepackage type transformer substation sound level test, include the pulse sound level meter, press from both sides dress platform, flexible metal pole, universal wheel, bottom plate and laser range finder, pulse sound level meter fixed mounting in press from both sides the dress platform, the one end of flexible metal pole runs through press from both sides the dress platform and with press from both sides dress platform fixed connection, flexible metal pole is kept away from press from both sides the one end of dress platform with bottom plate fixed connection, flexible metal pole is used for the height-adjusting. The utility model discloses a take laser positioning sound level test device, it not only can be convenient adjusting device highly be suitable for different experimental requirements from top to bottom, can pass through the accurate location of ground profile line to the measurement station moreover, slides the removal simultaneously and carries out the multiple spot position and measure.

Description

Sound level test device with laser positioning function

Technical Field

The utility model belongs to the technical field of the sound level test of power transformer and prepackage type transformer substation, concretely relates to take laser positioning sound level test device.

Background

For sound level tests of transformers and preassembled substations, related measurement values need to be carried out at specified horizontal distance and vertical height, so that the convenience of the test process is directly influenced by the determination of the measurement position, and the accuracy of the measurement position and the effectiveness of test data are influenced otherwise.

According to the currently implemented national standard GB 1094.10-2013 part 10 of power transformer: according to the regulation of the sound level measurement, when a transformer and a prefabricated substation are subjected to a sound level measurement test, firstly, a reference emission surface is determined through a test sample, secondly, the horizontal measurement height of the sound level is determined according to the height of the transformer or the prefabricated substation, secondly, a specified contour line is determined according to the corresponding distance between the reference emission surface and the specified contour line, the specified contour line is divided into measuring points with the interval not more than 1m, and finally, the sound level meter is used for measuring the measuring points. Because the measuring point is the position of the reference emitting surface in the horizontal position and the vertical position mapping in the space, the conventional measurement needs to be matched with the size of 2 horizontal and vertical coordinates, and can be completed by at least 2 detection personnel, the operation is very inconvenient on the premise of irregular contour line, the measurement of the position by hands is very inaccurate, and the time is also very long when generally measuring 15-25 points. The existing auxiliary measuring device also has a secondary error inaccurate with a measuring point coordinate on a contour line after a measuring coordinate is set. And GB 1094.10-2013 "power transformer part 10: the transformer with the height of 2.5m or more has two contour lines which are respectively positioned on the horizontal planes at the height 1/3 and 2/3 of the oil tank for multiple measurements; GB 17467-. The above criteria require a great deal in the number of points to be linked to the convenience and accuracy of sound level measurement.

The publication number is: CN203443611U, entitled practical novel patent of a noise acquisition device for a transformer substation, and the technical scheme thereof discloses that the noise acquisition device comprises a shell, a main module, a Beidou positioning module, a sound level meter, a temperature and humidity sensing module, an air speed, wind direction and wind pressure sensing module, wherein the main module is positioned in the shell; the output ends of the Beidou positioning module, the sound level meter, the temperature and humidity sensing module and the wind speed, wind direction and wind pressure sensing module are respectively connected with the corresponding input ends of the main module; the main module is provided with an interface 1 for receiving working condition information of equipment near a measured point, and the interface 1 is connected with a corresponding output port of the transformer integrated automation system; the main module is also provided with an interface 2, and all data collected by the Beidou positioning module, the sound level meter, the temperature and humidity sensing module and the wind speed, direction and pressure sensing module and data received by the interface 1 are transmitted to a corresponding input port of the transformer substation noise treatment system through the main module processing and the interface 2.

Use the utility model discloses an example, its sound collection of having mentioned the transformer substation, but its technical scheme with the utility model discloses different, it is simple to detect through the sound level meter, but transformer and prepackage type transformer substation sound level test are under the requirement of not co-altitude space profile line position and the many measurement points, and current device hardly guarantees that the measurement station is the mapping profile line position of benchmark transmitting surface in the space promptly, and the influence stack is measured to the multiple spot position can produce adverse effect to the sound level measurement accuracy to the end.

Therefore, the above problems are further improved.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a take laser positioning sound level test device, it not only can be convenient adjusting device highly be suitable for different experimental requirements from top to bottom, can pass through the accurate location of ground contour line to the measurement station moreover, slides simultaneously and removes and carry out the multiple spot position and measure.

For reach above purpose, the utility model provides a take laser positioning sound level test device for transformer or prepackage type transformer substation sound level test, include the pulse sound level meter, press from both sides dress platform, flexible metal pole, universal wheel, bottom plate and laser range finder, wherein:

the pulse sound level meter is fixedly arranged on the clamping table, one end of the telescopic metal rod penetrates through the clamping table and is fixedly connected with the clamping table, one end of the telescopic metal rod, which is far away from the clamping table, is fixedly connected with the bottom plate, and the telescopic metal rod is used for adjusting the height;

the bottom plate is kept away from the one end of flexible metal pole is installed the universal wheel (the universal wheel is the low noise universal wheel, can avoid device itself to produce the noise), laser range finder pass through the fixed clamp install in flexible metal pole, laser range finder's display screen is used for showing high numerical value in real time to the cooperation is adjusted flexible metal pole is to transformer or the required corresponding height of prepackage type transformer substation sound level test, the bottom plate is close to one side of pressing from both sides the dress platform is equipped with ground profile line measurement station display hole, laser range finder still is used for carrying out the calibration point through coaxial profile line measurement station display hole in vertical direction center with the measuring point on the profile line with the circle light spot that sends.

As a further preferable mode of the above-mentioned technical means, an extension portion is provided at one end of the telescopic metal rod penetrating through the clamping table, and the extension portion is fixedly connected to the clamping table by a fastening nut.

As a further preferable technical solution of the above technical solution, an installation grounding point is further provided on one side of the bottom plate close to the clamping table, and a grounding wire (for protecting personal safety of the tester during the live-line test) is installed on the installation grounding point.

As a further preferable technical solution of the above technical solution, an insulating push handle is provided at one side of the telescopic metal rod (the sound level test data is measured a plurality of times by applying force movement to the insulating push handle mounted on the telescopic metal rod).

As a more preferable mode of the above mode, the number of the universal wheels is 4.

The beneficial effects of the utility model reside in that: the universal wheel on the device is utilized for moving measurement, the horizontal position of the acoustic pulse level meter can be accurately controlled by focusing a measuring point on a ground contour line through an infrared circular light spot of the laser range finder, and the vertical height position can be determined by real-time display of a display screen of the infrared range finder. The transparent clamping platform of flexible metal pole and resin about the installation not only can measure small-size transformer or prepackage type transformer substation, also satisfies the measurement under the large-scale transformer co-altitude not, also can look up and read data on the accurate pulse sound level meter highly too high, measures accurate flexibility. The telescopic metal rod can be contracted after the test is finished, and the device is small in size and easy to store. The device is provided with the grounding point, can be connected with a grounding wire, and increases the safety factor of detection personnel under the high-voltage power-on condition of the tested sample.

Drawings

Fig. 1 is a schematic structural diagram of the sound level testing device with laser positioning of the present invention.

Reference numerals: 1. a pulse sound level meter; 2. fastening a nut; 3. a clamping table; 31. an extension portion; 4. an insulating hand push handle; 5. a telescopic metal rod; 6. a ground lead; 7. a device ground point; 8. a universal wheel; 9. a base plate; 10. a ground contour line measuring point display hole; 11 laser range finders; 12. fixing the clamp; 13. a display screen.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents and other technical solutions without departing from the spirit and scope of the invention.

The utility model discloses a take laser positioning sound level test device combines preferred embodiment below, further describes utility model's concrete embodiment.

In the embodiments of the present invention, those skilled in the art will note that the laser range finder and the pulse level meter, etc. related to the present invention can be regarded as the prior art.

Preferred embodiments.

The utility model discloses a take laser positioning sound level test device for transformer or prepackage type transformer substation sound level test, press from both sides dress platform 3, flexible metal pole 5, universal wheel 8, bottom plate and laser range finder 11 including pulse sound level meter 1, (resin is transparent), wherein:

the pulse sound level meter 1 is fixedly mounted on the clamping table 3, one end of the telescopic metal rod 5 penetrates through the clamping table 3 and is fixedly connected with the clamping table 3, one end of the telescopic metal rod 5, which is far away from the clamping table 3, is fixedly connected with the bottom plate 9, and the telescopic metal rod 5 is used for adjusting the height;

the universal wheel 8 is installed at one end, far away from the telescopic metal rod 5, of the bottom plate 9 (the universal wheel is a bottom noise universal wheel, noise generated by the device can be avoided), the laser range finder 11 is installed on the telescopic metal rod 5 through a fixing clamp 12, a display screen 13 of the laser range finder 11 is used for displaying height values in real time and adjusting the telescopic metal rod 5 to a corresponding height required by a sound level test of a transformer or a prefabricated substation in a matching mode, a ground contour line measuring point display hole 10 is formed in one side, close to the clamping table 3, of the bottom plate 9, and the laser range finder 11 is further used for enabling a sent circular light spot to be aligned to a calibration point through the contour line measuring point display hole 10 with the coaxial center in the vertical direction and measuring points on contour lines.

Specifically, an extension portion 31 is disposed at one end of the telescopic metal rod 5 penetrating through the clamping table 3, and the extension portion 31 is fixedly connected with the clamping table 3 through a fastening nut 2.

More specifically, an installation grounding point 7 is further arranged on one side of the bottom plate 9 close to the clamping table 3, and a grounding wire 6 (used for protecting the personal safety of the tester during the live test) is installed on the installation grounding point 7.

Further, one side of the telescopic metal rod 5 is provided with an insulating push handle 4 (the insulating push handle 4 installed on the telescopic metal rod 5 is applied with force to move to perform multiple sound level test data measurement).

Further, the number of the universal wheels 8 is 4.

It is worth mentioning that the technical features such as the laser range finder and the pulse sound level meter that the utility model discloses the patent application relates to should be regarded as prior art, and the concrete structure of these technical features, theory of operation and the control mode that probably involves, spatial arrangement mode adopt the conventional selection in this field can, should not be regarded as the utility model discloses a point of invention is located, the utility model discloses a do not do further specifically expand the detailed description.

It will be apparent to those skilled in the art that modifications and variations can be made in the above-described embodiments, or some features of the invention may be substituted or omitted, and any modification, substitution, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims (5)

1. The utility model provides a take laser positioning sound level test device for transformer or prepackage type transformer substation sound level test, its characterized in that includes the pulse sound level meter, presss from both sides dress platform, flexible metal rod, universal wheel, bottom plate and laser range finder, wherein:

the pulse sound level meter is fixedly arranged on the clamping table, one end of the telescopic metal rod penetrates through the clamping table and is fixedly connected with the clamping table, one end of the telescopic metal rod, which is far away from the clamping table, is fixedly connected with the bottom plate, and the telescopic metal rod is used for adjusting the height;

the universal wheel is installed to the one end that the bottom plate kept away from flexible metal pole, laser range finder pass through the fixed folder install in flexible metal pole, laser range finder's display screen is used for showing high numerical value in real time to the cooperation is adjusted flexible metal pole is to transformer or the required corresponding height of prepackage type transformer substation sound level test, the bottom plate is close to one side of pressing from both sides the dress platform is equipped with ground profile line measurement station display hole, laser range finder still is used for going on the calibration point through the coaxial contour line measurement station display hole in vertical direction center with the measurement station on the profile line with the circle light spot that sends.

2. The sound level testing device with the laser positioning function according to claim 1, wherein an extension portion is arranged at one end, penetrating through the clamping table, of the telescopic metal rod, and the extension portion is fixedly connected with the clamping table through a fastening nut.

3. The sound level testing device with laser positioning function of claim 2, wherein a grounding point is further arranged on one side of the bottom plate close to the clamping table, and a grounding wire is mounted on the grounding point.

4. The sound level testing device with the laser positioning function according to claim 3, wherein an insulating hand-push handle is arranged on one side of the telescopic metal rod.

5. The sound level testing device with laser positioning function of claim 4, wherein the number of the universal wheels is 4.

Images