Sample bin with dust removal function

Abstract

The utility model relates to optical detection equipment technical field provides a sample bin with dust removal function, the sample bin sets up in optical detection device casing, the sample bin is provided with the door that can open and close on, is provided with proximity switch on the sample bin, is provided with sample seat on the bottom surface of sample bin, is set up a plurality of air outlet on the bottom surface of sample bin, the air outlet is connected with the outlet of high pressure gas pump through the connecting gas path. The utility model can realize the function of automatic removal of dust, prevents in the process of placing or replacing sample, appears the situation that dust floats to sample, optical element or the surface of lens.

Description

Technical Field

[0001] This utility model relates to the field of optical inspection equipment technology, and in particular to a sample chamber with a dust removal function. Background Technology

[0002] Optical testing requires a clean environment. However, the air in the testing environment may contain small amounts of fine dust or impurities.

[0003] The sample chamber is a mechanism used to place samples in an optical testing device. When placing or changing samples, the sample chamber door needs to be opened. In existing sample chambers, the sample, optical components or lenses are directly exposed after the door is opened. Small amounts of dust or impurities in the air may fall into the sample chamber or even enter the optical testing device, causing dust to accumulate on the sample, optical components or lenses, which may affect the test results or damage the components. Utility Model Content

[0004] This invention addresses the technical problem in existing sample chambers where dust or impurities in the air may fall into the chamber, causing dust to accumulate on samples, optical components, or lenses, thus affecting test results. The invention proposes a sample chamber with a dust removal function, which can automatically remove dust and prevent dust from falling onto the surface of samples, optical components, or lenses during sample placement or replacement.

[0005] This utility model provides a sample chamber with a dust removal function, wherein the sample chamber is disposed in the housing of an optical detection device;

[0006] The sample chamber is equipped with an openable and closable door; the sample chamber is also equipped with a proximity switch.

[0007] A sample holder is provided on the bottom surface of the sample chamber, and multiple air outlets are provided on the bottom surface of the sample chamber.

[0008] The air outlet is connected to the outlet of the high-pressure air pump via a connecting air passage.

[0009] Preferably, the side wall of the sample chamber has multiple windows, and quartz lenses are installed in the windows.

[0010] Preferably, a filter screen is provided at the inlet of the high-pressure air pump.

[0011] Preferably, the high-pressure air pump, filter, and connecting air passage are housed inside the optical detection device housing.

[0012] Preferably, the door is hinged to the sample compartment on one side and has a latch on the other side;

[0013] The sample chamber has a buckle seat, and the buckle seat corresponds to the buckle position.

[0014] This invention provides a sample chamber with a dust removal function. When the chamber door is detected to be open, a high-pressure air pump automatically starts, blowing high-pressure gas into the sample chamber, which is in contact with the environment. This ensures a positive pressure environment in the sample chamber, effectively preventing dust from falling and thus guaranteeing the condition of the sample chamber and the optical detection device, as well as the accuracy of the test results. The sample area, which is frequently exposed to the environment, is separated from the optical components and lenses, which are less frequently exposed to the samples, ensuring that the optical components and lenses within the optical detection device do not become contaminated with dust. This invention achieves automatic dust removal, preventing dust or impurities from falling onto the optical components, lenses, or sample surfaces during sample placement or replacement, ensuring accurate test results and protecting the components. Furthermore, a proximity switch sensor is added to detect the status of the sample chamber door in real time. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the sample chamber with dust removal function of this utility model;

[0016] Figure 2 This is a schematic diagram of the optical detection device with a dust removal function for sample chambers according to this invention. Figure 1 (The hatch is closed);

[0017] Figure 3 This is a schematic diagram of the optical detection device with a dust removal function for sample chambers according to this invention. Figure 2 (The hatch opens);

[0018] Figure 4 This is a schematic diagram of the optical detection device with a dust removal function for sample chambers according to this invention. Figure 3 (Decomposition state).

[0019] Reference numerals in the attached figures: 1. Housing of the optical detection device; 2. Sample chamber; 3. Snap-on seat; 4. Chamber door; 5. Quartz lens; 6. Sample holder; 7. Air outlet; 8. High-pressure air pump; 9. Filter screen; 10. Connecting air passage. Detailed Implementation

[0020] To make the technical problems solved by this utility model, the technical solutions adopted, and the technical effects achieved clearer, this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining this utility model and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this utility model are shown in the accompanying drawings, not all of them.

[0021] like Figure 1-4As shown in the figure, this utility model provides a sample chamber with a dust removal function, wherein the sample chamber 2 is disposed in the housing 1 of the optical detection device. The housing 1 of the optical detection device provides the outermost protection for the optical detection device and the sample chamber 2, preventing dust or impurities from falling into the interior of the optical detection device. The sample chamber 2 is used to hold samples and is frequently in contact with the external environment. The sample chamber 2 is isolated from other optical components, lenses, etc. of the optical detection device to prevent dust from falling into the interior of the optical detection device.

[0022] The sample chamber 2 is equipped with an openable and closable door 4; the door 4 can be opened and closed using a snap-fit ​​mechanism. Specifically, one side of the door 4 is hinged to the top of the sample chamber 2, and the other side has a snap-fit ​​mechanism. A snap-fit ​​seat 3 is provided on the sample chamber 2, and the snap-fit ​​seat 3 corresponds to the snap-fit ​​position. The snap-fit ​​and snap-fit ​​seat 3 cooperate to achieve locking and unlocking. When placing samples, the door 4 is opened to reduce the contact area with dust; when finishing placing samples, the door 4 is closed to prevent dust from falling into the sample chamber 2.

[0023] A proximity switch is installed on the sample chamber 2 to detect the opening and closing status of the chamber door 4. Specifically, the proximity switch can be located below the latch seat 3. When the latch is lifted from the latch seat 3, the proximity switch is triggered; when the latch is engaged on the latch seat 3, the proximity switch is not triggered.

[0024] A sample holder 6 is provided on the bottom surface of the sample chamber 2 for placing samples. Multiple windows are opened on the side walls of the sample chamber 2, and quartz lenses 5 are installed in these windows. The quartz lenses 5 ensure that the optical testing device can operate normally, allowing laser light to pass through while also isolating dust. The arrangement of windows on the side walls of the sample chamber 2 and the installation of quartz lenses 5 can be determined according to the specific requirements of the optical testing device.

[0025] Multiple air outlets 7 are provided on the bottom surface of the sample chamber 2. These outlets 7 are connected to the outlet of a high-pressure air pump 8 via a connecting air passage 10, and are where high-pressure gas is ejected. The high-pressure air pump 8 generates high-pressure gas, which is then ejected through the outlets 7, blowing out dust and preventing it from falling into the sample chamber 2. A filter 9 is installed at the inlet of the high-pressure air pump 8 to filter the gas drawn in, ensuring the cleanliness of the ejected gas. The high-pressure air pump 8, filter 9, and connecting air passage 10 can be specifically housed within the housing 1 of the optical detection device. Specifically, a cavity can be left below the bottom surface of the sample chamber 2, which is connected to the connecting air passage 10. During operation, the high-pressure gas generated by the high-pressure air pump 8 passes through the connecting air passage 10 and the cavity, and is blown out through the outlets 7. At this time, the sample chamber 2 is in a positive pressure environment, ensuring a continuous supply of clean air and preventing dust from falling into the sample chamber 2.

[0026] The working principle of the sample chamber with dust removal function of this utility model is as follows: when the door 4 of the sample chamber 2 is closed, the sample chamber 2 is in a closed state, which can ensure that dust will not fall into the sample chamber 2 and the optical detection device.

[0027] When it is necessary to place or replace the sample, manually open the chamber door 4. The proximity switch is triggered, and the door door 4 is detected to be in the open position. At this time, the high-pressure air pump 8 starts to operate. The high-pressure air pump 8 draws in air, filters it through the filter screen 9, and blows out clean high-pressure air. After passing through the connecting air passage 10 and the cavity, the high-pressure air is blown out from the air outlet 7, ensuring that a continuous supply of clean air is blown out of the sample chamber 2, thereby ensuring that no dust falls into the sample chamber 2.

[0028] When the sample placement or replacement is finished, manually close the chamber door 4. The proximity switch will stop triggering and detect that the chamber door 4 is in the closed position. At this time, the high-pressure air pump 8 will stop operating, ensuring that the sample chamber 2 is in a stable state and that there is no dust inside the sample chamber 2. The optical detection device can then begin testing.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications to the technical solutions described in the foregoing embodiments, or equivalent substitutions for some or all of the technical features, do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A sample chamber with a dust removal function, wherein the sample chamber (2) is disposed in the housing (1) of an optical detection device; Its features are: The sample chamber (2) is equipped with an openable and closable door (4); the sample chamber (2) is equipped with a proximity switch; A sample holder (6) is provided on the bottom surface of the sample chamber (2), and multiple air outlets (7) are opened on the bottom surface of the sample chamber (2). The air outlet (7) is connected to the outlet of the high-pressure air pump (8) via the connecting air passage (10).

2. The sample chamber with dust removal function according to claim 1, characterized in that, The sample chamber (2) has multiple windows on its side wall, and quartz lenses (5) are installed in the windows.

3. The sample chamber with dust removal function according to claim 1, characterized in that, A filter screen (9) is installed at the inlet of the high-pressure air pump (8).

4. The sample chamber with dust removal function according to claim 3, characterized in that, The high-pressure air pump (8), filter (9), and connecting air passage (10) are installed inside the housing (1) of the optical detection device.

5. The sample chamber with dust removal function according to claim 1, characterized in that, The door (4) is hinged on one side above the sample chamber (2), and a buckle is provided on the other side; The sample chamber (2) has a buckle seat (3) which corresponds to the buckle position.

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