CN217059944U

CN217059944U - Filter screen failure detection device

Info

Publication number: CN217059944U
Application number: CN202122796206.8U
Authority: CN
Inventors: 张世著; 石欣超; 熊婉玲
Original assignee: Nanjing Huading Nanotechnology Research Institute Co ltd
Current assignee: Nanjing Huading Nanotechnology Research Institute Co ltd
Priority date: 2021-11-16
Filing date: 2021-11-16
Publication date: 2022-07-26
Anticipated expiration: 2031-11-16

Abstract

The utility model discloses a filter screen failure detection device, which comprises a weighing device and an image collector; a filter screen is placed above the weighing device; and the image collector capable of collecting the image of the filter screen is arranged above the weighing device. The utility model discloses a filter screen detection device that became invalid can discern the filter screen through quality dimension, image detection dimension simultaneously and whether became invalid. The device is integrated, and the measurement of various processes is avoided. The utility model discloses a filter screen inefficacy detection device can realize high-efficient the detection, and saves the cost.

Description

Filter screen failure detection device

Technical Field

The utility model belongs to the technical field of check out test set, especially, relate to a filter screen inefficacy detection device.

Background

With the increasing living standard and health consciousness, air purifiers are more and more popular in home and office environments. Accordingly, there is little concern regarding whether or not a filter screen or a filter element, which is a core member of an air cleaner, has failed, and how to judge it.

In CN 104596051A-system for detecting images of filter screens of air purifiers, continuous photographing and image comparison are performed to determine whether a filter screen has failed by checking the adhesion of dust to the filter screen and the aging of the filter screen. The method has a long period, is generally only suitable for HEPA filter screens only with dust filtering function, and the color judgment method does not give a judgment basis clearly, thereby seriously limiting the popularization and application of the technology. In CN 211718057U-filter screen detection device and air purifier, a reflected light system is used to detect the filter screen, the technical method is not suitable for filter screens with more air leakage and has poor detection accuracy, and the color judgment method does not clearly give a judgment basis and is not suitable for filter screens actually used in the air purification industry. The above-mentioned technique is not concerned with the determination of whether a filter net produced and stored for a long time is effective.

How to reliably and conveniently identify the failure of the filter screen, reduce the operation complexity and improve the identification efficiency and accuracy becomes a technical problem to be solved.

Disclosure of Invention

To the technical problem, the utility model discloses a filter screen inefficacy detection device can realize convenient, accurate detection.

In order to achieve the above purpose, the utility model adopts the technical scheme that: a filter screen failure detection device comprises a weighing device, wherein a filter screen is placed above the weighing device; and an image collector capable of collecting the image of the filter screen is arranged above the weighing device.

Further, still be equipped with standard color plate on the weighing device, the filter screen is placed on standard color plate.

Preferably, the standard color plate is a standard white plate.

Furthermore, the device also comprises a D65 standard light source which is used for providing illumination for the collecting area of the image collector, namely illuminating the filter screen and the standard color plate part. The D65 standard light source can improve the image quality that image collector gathered, improves the accuracy that the filter screen became invalid and detects.

Furthermore, in order to avoid the influence of external light and improve the illumination effect of a light source, the filter screen failure detection device of the utility model also comprises a box body, and a weighing device and an image collector are arranged in the box body; the D65 standard light source is arranged on the top of the box body.

Further, the weighing device further comprises a support, the image collector is arranged on the support, and the arrangement position of the image collector is located right above the weighing device.

Preferably, the bracket is arranged in the box body; the image collector is arranged on the support, and the arrangement position of the image collector is positioned right above the weigher.

The utility model discloses following beneficial effect has: the utility model discloses a filter screen detection device that became invalid can discern the filter screen through quality dimension, image detection dimension simultaneously and whether became invalid. The device is integrated, the manual taking and detection of the filter screen are avoided, the back-and-forth measurement of various processes is avoided, the process is simple and convenient, and the method is scientific. The method is convenient for rapid and accurate judgment of a large number of large-size filter screens, and is beneficial to actual filter screen production and use. And the cooperation of the standard color plate and the D65 standard light source also ensures that the image acquisition accuracy is high and the failure detection effect is good.

Drawings

Fig. 1 is the utility model discloses filter screen failure detection device schematic structure.

In the figure, 1 is a box body, 2 is a weighing device, 3 is a D65 standard light source, 4 is an image collector, 5 is a bracket, 6 is a standard white board, and 7 is a filter screen.

Detailed Description

In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following embodiments and the accompanying drawings.

As shown in fig. 1, the filter screen failure detection device of the present embodiment includes a box 1, a weighing device 2, a D65 standard light source 3, an image collector 4, a bracket 5, and a standard white board 6.

The box body 1 is used for avoiding the influence of external light, providing protection for the device and the like. The weighing device 2 and the bracket 5 are arranged in the box body 1; a standard white board 6 is arranged above the weighing device 2, and a filter screen 7 is placed on the standard white board 6; the image collector 4 is arranged on the bracket 5 and above the weighing device 2, and can collect a complete image of the filter screen 7.

The light source device further comprises a D65 standard light source 3, the D65 standard light source 3 is arranged at the top of the box body 1, and the D65 standard light source 3 can uniformly irradiate the range of the filter screen 7 to be detected. The D65 standard light source 3 is used to provide illumination for the acquisition area of the image acquirer 4, i.e., illuminate the screen 7 and the standard white board 6 portion. The D65 standard light source 3 can improve the image quality that image collector 4 gathered, improves the accuracy that filter screen 7 became invalid and detects.

The D65 standard light source and the standard white board are adopted in the embodiment, the image collector is used for collecting the images of the filter screen, the efficiency and the accuracy of the failure detection of the filter screen are improved, and the uniform failure judgment standard based on the difference of effective colors and failure colors is formed by the filter screens of the same type. And the addition of the standard white board also enables the technology to be applicable to common filter screen types with more air leakage, thereby being beneficial to the future popularization and application of the technology.

The above embodiment is only for explaining the utility model discloses a technical thought can not be injectd with this the utility model discloses a protection scope, all according to the utility model provides a technical thought, any change of doing on the technical scheme basis all falls into the utility model discloses within the protection scope.

Claims

1. The utility model provides a filter screen failure detection device which characterized in that: comprises a weigher and an image collector;

a filter screen is placed above the weighing device; the image collector capable of collecting the filter screen image is arranged above the weighing device;

and the weighing device is also provided with a standard color plate, and the filter screen is placed on the standard color plate.

2. The screen failure detection device of claim 1, wherein: the standard color board is a standard white board.

3. The screen failure detection device of claim 1 or 2, wherein: the system also comprises a D65 standard light source, wherein the D65 standard light source is used for providing illumination for the acquisition area of the image acquisition device.

4. The screen failure detection device of claim 3, wherein: the weighing device and the image collector are arranged in the box body; the D65 standard light source is arranged at the top of the box body, and the area of the D65 standard light source is adapted to the area of the filter screen to be detected.

5. The screen failure detection device of claim 4, wherein: the bracket is arranged in the box body; the image collector is arranged on the bracket, and the arrangement position of the image collector is positioned right above the weigher.

6. The screen failure detection device of claim 3, wherein: the weighing device is characterized by further comprising a support, wherein the image collector is arranged on the support, and the arrangement position of the image collector is located right above the weighing device.

7. The screen failure detection device of claim 1, wherein: the weighing device is characterized by further comprising a support, wherein the image collector is arranged on the support, and the arrangement position of the image collector is located right above the weighing device.