Ultraviolet light cleaning device

Abstract

The utility model discloses an ultraviolet light cleaning device which comprises a cleaning container, a light-emitting mechanism, a sample placing mechanism and a vacuum mechanism, and an air inlet, an air outlet and a sample placing opening which are communicated with a cleaning cavity are formed in the cleaning container; the light-emitting mechanism comprises a plurality of ultraviolet lamp tubes; the lofting mechanism comprises a measuring rod; the vacuum mechanism comprises a vacuum pump, and an inlet of the vacuum pump is communicated with the exhaust port. The ultraviolet light cleaning device has the advantages that a sample is placed on the transparent plate of the measuring rod, the transparent plate is placed in the irradiation area defined by the ultraviolet lamp tubes through the measuring rod, the ultraviolet lamp tubes can irradiate the sample on the transparent plate from different directions, cleaning efficiency is improved, meanwhile, the measuring rod is arranged on the transparent plate of the measuring rod, and the measuring rod is arranged on the transparent plate of the measuring rod. And after cleaning is completed, the measuring rod is pulled out from the sample placing opening and then is directly inserted into a sample inserting hole of the transmission electron microscope, so that the use convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ultraviolet cleaning, in particular to an ultraviolet cleaning device. Background Art

[0002] Ultraviolet cleaning technology is a method that uses the photosensitive oxidation of organic compounds to remove organic substances adhering to the surface of materials. Specifically, UV light cleaning machine / ultraviolet ozone cleaning machine can simultaneously emit ultraviolet light with wavelengths of 254nm and 185nm. The photon energy of these two wavelengths can directly open and cut the covalent bonds in organic molecules, activate organic molecules, and decompose them into ions, free atoms, excited molecules, etc. At the same time, the light energy of ultraviolet light with a wavelength of 185nm can decompose oxygen (O2) in the air into ozone (O3); while the light energy of ultraviolet light with a wavelength of 254nm can decompose O3 into O2 and active oxygen (O). This photosensitive oxidation reaction process is continuous. Under the irradiation of these two short-wave ultraviolet lights, ozone will continue to be generated and decomposed, and active oxygen atoms will continue to be generated, and more and more. Because active oxygen atoms (O) have a strong oxidizing effect, they react with activated organic matter (i.e. hydrocarbon) molecules to generate volatile gases (such as CO2, CO, H2O, NO, etc.) that escape from the surface of objects, thereby completely removing organic pollutants adhering to the surface of objects.

[0003] The existing ultraviolet cleaning device usually only has one row of ultraviolet lamps, and the sample is placed under the ultraviolet lamp for ultraviolet cleaning. This will cause only one side of the sample to receive ultraviolet light, resulting in reduced ultraviolet cleaning efficiency. At the same time, the existing ultraviolet cleaning device usually places the sample directly on a placement plate, and then puts the placement plate into the device. However, for transmission electron microscope samples, due to the extremely small size of the sample, the sample can only be clamped to the placement plate by tools such as tweezers. After the subsequent cleaning is completed, the sample must be clamped to the measuring rod of the transmission electron microscope by tweezers, which is a cumbersome operation. Utility Model Content

[0004] The purpose of the utility model is to overcome the above technical deficiencies and propose an ultraviolet cleaning device to solve the technical problems in the prior art that only one side of the sample receives ultraviolet light, resulting in reduced ultraviolet cleaning efficiency and inconvenience in cleaning transmission electron microscope samples.

[0005] In order to achieve the above technical purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides an ultraviolet cleaning device, comprising:

[0007] A cleaning container, wherein the cleaning container has a closed cleaning cavity, and the cleaning container is provided with an air inlet, an exhaust port and a sample placing port which are connected with the cleaning cavity;

[0008] A light-emitting mechanism, wherein the light-emitting mechanism comprises a plurality of ultraviolet lamp tubes, each of which encloses an irradiation area;

[0009] a sample placing mechanism, the sample placing mechanism comprising a measuring rod, the measuring rod being inserted into the sample placing port, a transparent plate for placing a sample being formed at one end of the measuring rod located in the cleaning chamber, the transparent plate being located in the irradiation area; and,

[0010] A vacuum mechanism comprises a vacuum pump, wherein the inlet of the vacuum pump is connected to the exhaust port.

[0011] In some embodiments, a sealing ring is sleeved on the measuring rod, and the sealing ring is located between the measuring rod and the inner wall of the sample placement port.

[0012] In some embodiments, a marking groove is provided on the measuring rod.

[0013] In some embodiments, the cleaning container is further provided with a storage groove connected to the cleaning chamber, and a guide hole is provided on the side wall of the cleaning container. The placement mechanism also includes a guide rod, a cover plate and a transparent storage plate. The guide rod is slidably inserted into the guide hole, the cover plate is fixed to the guide rod, the cover plate is used to cover the storage groove, and the transparent storage plate is fixed to the cover plate. When the cover plate covers the storage groove, the transparent storage plate is located in the irradiation area.

[0014] In some embodiments, a handle is fixed on the outer side wall of the cover plate.

[0015] In some embodiments, the ultraviolet light cleaning device also includes a shell and an air intake control mechanism, the shell is provided with a gas interface, the air intake control mechanism includes a gas flow controller, a first connecting pipe and a second connecting pipe, the inlet of the gas flow controller is connected to the gas interface via the first connecting pipe, and the outlet of the gas flow controller is connected to the air inlet via the second connecting pipe.

[0016] In some embodiments, an air inlet hole is further provided on the housing, and a fan is disposed in the air inlet hole.

[0017] In some embodiments, the vacuum mechanism further includes a third connecting pipe, one end of the third connecting pipe is connected to the exhaust port, and the other end of the third connecting pipe is connected to the inlet of the vacuum pump.

[0018] In some embodiments, the vacuum mechanism further includes an exhaust control valve, and the exhaust control valve is disposed on the third connecting pipe.

[0019] In some embodiments, a detection port connected to the cleaning chamber is provided on the cleaning container, and the vacuum mechanism further includes a vacuum gauge, and an inlet of the vacuum gauge is connected to the detection port.

[0020] Compared with the prior art, the beneficial effect of the ultraviolet cleaning device provided by the utility model is as follows: by placing the sample on the transparent plate of the measuring rod, the transparent plate is placed in the irradiation area surrounded by a plurality of ultraviolet lamp tubes through the measuring rod, and each ultraviolet lamp tube can irradiate the sample on the transparent plate from different directions, thereby improving the cleaning efficiency. At the same time, after the cleaning is completed, the measuring rod can be pulled out from the sample placement port and then directly inserted into the sample socket of the transmission electron microscope, thereby improving the convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structural schematic diagram of an ultraviolet cleaning device provided by an embodiment of the utility model;

[0022] Figure 2 yes Figure 1 A schematic diagram of the three-dimensional structure of the ultraviolet cleaning device with part of the outer shell omitted;

[0023] Figure 3 yes Figure 2 An exploded view of the UV cleaning device in FIG.

[0024] Figure 4 yes Figure 3 A schematic diagram of the three-dimensional structure of the cleaning container;

[0025] Figure 5 yes Figure 4 A partial enlarged view of the middle area A;

[0026] Explanation of the reference numerals: 1-cleaning container, 11-air inlet, 12-exhaust port, 13-placement port, 14-observation window, 15-storage slot, 2-light-emitting mechanism, 21-ultraviolet lamp, 3-placement mechanism, 31-measuring rod, 311-transparent plate, 312-sealing ring, 313-marking slot, 32-guide rod, 33-cover plate, 331-handle, 34-transparent storage plate, 4-vacuum mechanism, 41-vacuum pump, 42-third connecting pipe, 43-exhaust control valve, 44-vacuum gauge, 5-housing, 51-gas interface, 52-fan, 6-air intake control mechanism, 61-gas flow controller, 62-first connecting pipe, 63-second connecting pipe. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0028] In order to solve the technical problem in the prior art that only one side of the sample receives ultraviolet light, resulting in reduced ultraviolet cleaning efficiency and inconvenience in cleaning transmission electron microscope samples, the utility model provides an ultraviolet light cleaning device, which can improve the ultraviolet light cleaning efficiency and facilitate the cleaning of transmission electron microscope samples.

[0029] See also Figure 1 , Figure 1 Schematic diagram of the three-dimensional structure of an ultraviolet cleaning device in an embodiment of the utility model. The ultraviolet cleaning device includes a cleaning container 1, a light emitting mechanism 2, a sample placing mechanism 3 and a vacuum mechanism 4.

[0030] See also Figure 1-Figure 5 The cleaning container 1 has a closed cleaning chamber, and the cleaning container 1 is provided with an air inlet 11, an exhaust port 12 and a sample opening 13 connected to the cleaning chamber. In this embodiment, in order to facilitate observation of the internal cleaning condition, the cleaning container 1 is also provided with an observation window 14.

[0031] The light emitting mechanism 2 includes a plurality of ultraviolet lamp tubes 21 , and each ultraviolet lamp tube 21 encloses an irradiation area.

[0032] The sample placement mechanism 3 includes a measuring rod 31, and the measuring rod 31 is inserted into the sample placement port 13. A transparent plate 311 for placing samples is formed at one end of the measuring rod 31 located in the cleaning chamber, and the transparent plate 311 is located in the irradiation area. In this embodiment, the measuring rod 31 is a measuring rod matched with a transmission electron microscope and can be directly inserted into the sample socket of the transmission electron microscope. In this way, when cleaning is completed, the measuring rod 31 can be directly pulled out from the sample placement port 13 and then inserted into the sample socket of the transmission electron microscope, which is more convenient to operate.

[0033] The vacuum mechanism 4 includes a vacuum pump 41 , and an inlet of the vacuum pump 41 is connected to the exhaust port 12 .

[0034] When in use, the sample of the transmission electron microscope is placed on the transparent plate 311 of the measuring rod 31, and then the measuring rod 31 is inserted into the sample placement port 13, and then the air inlet 11 is connected to the oxygen source, and the vacuum pump 41 is turned on to extract the gas in the cleaning container 1, and oxygen enters the cleaning container 1. After vacuuming for a period of time, the ultraviolet lamp 21 is turned on, and the ultraviolet light emitted by the ultraviolet lamp 21 decomposes the oxygen into ozone, and the ozone reacts with the organic pollutants adhered to the surface of the object to achieve cleaning of the sample. After cleaning, the measuring rod 31 is pulled out from the sample placement port 13 and then directly inserted into the sample socket of the transmission electron microscope.

[0035] The technical solution provided by the utility model is to place the sample on the transparent plate 311 of the measuring rod 31, and place the transparent plate 311 in the irradiation area surrounded by multiple ultraviolet lamp tubes 21 through the measuring rod 31. Each ultraviolet lamp tube 21 can irradiate the sample on the transparent plate 311 from different directions, thereby improving the cleaning efficiency. At the same time, after cleaning, the measuring rod 31 can be pulled out from the sample placement port 13 and then directly inserted into the sample socket of the transmission electron microscope, thereby improving the convenience of use.

[0036] In one embodiment, see Figure 4 and Figure 5 A sealing ring 312 is sleeved on the measuring rod 31 , and the sealing ring 312 is located between the measuring rod 31 and the inner wall of the sample opening 13 , thereby improving the sealing performance between the measuring rod 31 and the inner wall of the sample opening 13 .

[0037] In one embodiment, see Figure 4 The measuring rod 31 is provided with a marking groove 313 , and the marking groove 313 can indicate the direction of the sample.

[0038] In one embodiment, see Figure 2-Figure 4 The cleaning container 1 is also provided with a storage groove 15 connected to the cleaning chamber, and a guide hole is provided on the side wall of the cleaning container 1. The sample placement mechanism 3 also includes a guide rod 32, a cover plate 33 and a transparent storage plate 34. The guide rod 32 is slidably inserted in the guide hole, and the cover plate 33 is fixed to the guide rod 32. The cover plate 33 is used to cover the storage groove 15, and the transparent storage plate 34 is fixed to the cover plate 33. When the cover plate 33 covers the storage groove 15, the transparent storage plate 34 is located in the irradiation area. When in use, for larger samples to be cleaned, the samples can be directly placed on the transparent storage plate 34, and then the cover plate 33 is pushed to cover the storage groove 15 to achieve sample placement.

[0039] In one embodiment, see Figure 2-Figure 4 A handle 331 is fixed on the outer wall of the cover plate 33 .

[0040] In one embodiment, see Figure 1-Figure 3 The ultraviolet cleaning device further comprises a housing 5 and an air intake control mechanism 6. A gas interface 51 is provided on the housing 5. The air intake control mechanism 6 comprises a gas flow controller 61, a first connecting pipe 62 and a second connecting pipe 63. The inlet of the gas flow controller 61 is connected to the gas interface 51 via the first connecting pipe 62, and the outlet of the gas flow controller 61 is connected to the air intake port 11 via the second connecting pipe 63. In this embodiment, the gas flow controller 61 is a gas valve that can control the degree of opening. When in use, the gas interface 51 is connected to the oxygen source, and the oxygen flow entering the cleaning container 1 is controlled by the gas flow controller 61.

[0041] In one embodiment, see Figure 1-Figure 3 The housing 5 is also provided with an air inlet hole, and a fan 52 is arranged in the air inlet hole.

[0042] In one embodiment, see Figure 1-Figure 3 The vacuum mechanism 4 further includes a third connecting pipe 42 , one end of which is connected to the exhaust port 12 , and the other end of which is connected to the inlet of the vacuum pump 41 .

[0043] In one embodiment, see Figure 1-Figure 3 The vacuum mechanism 4 further includes an exhaust control valve 43 , and the exhaust control valve 43 is disposed on the third connecting pipe 42 , so as to control the on-off of the third connecting pipe 42 .

[0044] In one embodiment, see Figure 1-Figure 3 The cleaning container 1 is provided with a detection port connected to the cleaning chamber, and the vacuum mechanism 4 also includes a vacuum gauge 44, the inlet of the vacuum gauge 44 is connected to the detection port, and the vacuum degree in the cleaning container 1 can be detected through the vacuum gauge 44.

[0045] In order to better understand the present invention, the following Figures 1 to 5The technical scheme of the utility model is described in detail: when in use, the sample of the transmission electron microscope is placed on the transparent plate 311 of the measuring rod 31, and then the measuring rod 31 is inserted into the sample placement port 13, and then the gas interface 51 is connected to the oxygen source, the gas flow controller 61 is closed, and the vacuum pump 41 is turned on to extract the gas in the cleaning container 1. When the vacuum gauge 44 detects that the vacuum degree in the cleaning container 1 reaches a first preset value, the gas flow controller 61 is turned on, and oxygen enters the cleaning container 1. The vacuum pump 41 is turned on synchronously. After vacuuming for a period of time, when the vacuum gauge 44 detects that the vacuum degree in the cleaning container 1 reaches a second preset value, the ultraviolet lamp 21 is turned on. The ultraviolet light emitted by the ultraviolet lamp 21 decomposes oxygen into ozone, and the ozone reacts with organic pollutants adhered to the surface of the object to achieve cleaning of the sample. After cleaning, the measuring rod 31 is pulled out from the sample placement port 13 and then directly inserted into the sample jack of the transmission electron microscope.

[0046] The technical solution provided by the utility model is to place the sample on the transparent plate 311 of the measuring rod 31, and place the transparent plate 311 in the irradiation area surrounded by multiple ultraviolet lamp tubes 21 through the measuring rod 31. Each ultraviolet lamp tube 21 can irradiate the sample on the transparent plate 311 from different directions, thereby improving the cleaning efficiency. At the same time, after cleaning, the measuring rod 31 can be pulled out from the sample placement port 13 and then directly inserted into the sample socket of the transmission electron microscope, thereby improving the convenience of use.

[0047] The specific implementation methods of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A UV cleaning device, characterized in that: include: A cleaning container, wherein the cleaning container has a closed cleaning cavity, and the cleaning container is provided with an air inlet, an exhaust port and a sample placing port which are connected with the cleaning cavity; A light-emitting mechanism, wherein the light-emitting mechanism comprises a plurality of ultraviolet lamp tubes, each of which encloses an irradiation area; a sample placing mechanism, the sample placing mechanism comprising a measuring rod, the measuring rod being inserted into the sample placing port, a transparent plate for placing a sample being formed at one end of the measuring rod located in the cleaning chamber, the transparent plate being located in the irradiation area; and, A vacuum mechanism comprises a vacuum pump, wherein the inlet of the vacuum pump is connected to the exhaust port.

2. The ultraviolet cleaning device according to claim 1, characterized in that: A sealing ring is sleeved on the measuring rod, and the sealing ring is located between the measuring rod and the inner side wall of the lofting port.

3. The ultraviolet cleaning device according to claim 1, characterized in that: A marking groove is provided on the measuring rod.

4. The ultraviolet cleaning device according to claim 1, characterized in that: The cleaning container is also provided with a storage groove connected to the cleaning chamber, and a guide hole is provided on the side wall of the cleaning container. The placement mechanism also includes a guide rod, a cover plate and a transparent storage plate. The guide rod is slidably inserted in the guide hole, the cover plate is fixed to the guide rod, the cover plate is used to cover the storage groove, and the transparent storage plate is fixed to the cover plate. When the cover plate covers the storage groove, the transparent storage plate is located in the irradiation area.

5. The ultraviolet cleaning device according to claim 4, characterized in that: A handle is fixed on the outer side wall of the cover plate.

6. The ultraviolet cleaning device according to claim 1, characterized in that: It also includes a shell and an air intake control mechanism, the shell is provided with a gas interface, the air intake control mechanism includes a gas flow controller, a first connecting pipe and a second connecting pipe, the inlet of the gas flow controller is connected to the gas interface via the first connecting pipe, and the outlet of the gas flow controller is connected to the air inlet via the second connecting pipe.

7. The ultraviolet cleaning device according to claim 6, characterized in that: An air inlet hole is also provided on the shell, and a fan is arranged in the air inlet hole.

8. The ultraviolet cleaning device according to claim 1, characterized in that: The vacuum mechanism further includes a third connecting pipe, one end of which is connected to the exhaust port, and the other end of which is connected to the inlet of the vacuum pump.

9. The ultraviolet cleaning device according to claim 8, characterized in that: The vacuum mechanism further includes an exhaust control valve, and the exhaust control valve is disposed on the third connecting pipe.

10. The ultraviolet cleaning device according to claim 1, characterized in that: The cleaning container is provided with a detection port connected to the cleaning chamber, and the vacuum mechanism further comprises a vacuum gauge, the inlet of which is connected to the detection port.

Images