Spectrophotometer for detecting content of pollution gas
By introducing a cleaning component and guide roller assembly into the spectrophotometer, the problem of reduced measurement accuracy caused by dust accumulation was solved, achieving efficient cleaning of the sample chamber and ensuring the transparency of the optical path and the accuracy of the measurement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-16
- Publication Date
- 2026-03-27
AI Technical Summary
During long-term use, dust accumulates inside the sample chamber and on the surface of optical components of a spectrophotometer, interfering with light propagation and measurement, thus reducing measurement accuracy.
A spectrophotometer including a cleaning component was designed. The cleaning component consists of a first, second, and third dust removal element. The sample holder is pulled out through a guide roller and pulley system, and a soft brush is used to clean the side walls and bottom of the sample chamber to ensure the cleanliness of the optical path.
It effectively removes dust from the sample chamber, ensures the transparency of the optical path, and improves measurement accuracy and detection precision.
Smart Images
Figure CN224051969U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of pollution gas detection, specifically relates to a spectrophotometer for detecting pollution gas content. BACKGROUND
[0002] Spectrophotometer is an important analytical instrument. It generates light through light source, decomposes monochromatic light of different wavelengths through monochromator, lets light and sample act, and obtains data by using photoelectric detector to detect light intensity change. Its types are various, there are ultraviolet, visible and infrared spectrophotometers, and it can meet different detection needs. It is widely used and can be used for quantitative analysis in the fields of chemistry, biology, food and the like. Calibration, sampling and other links need to be done well during operation, and it plays a key role in scientific research and quality control in numerous industries by virtue of accurate detection capacity.
[0003] At present, when the spectrophotometer detects, the dust cover of the sample chamber is usually opened, then the cuvette containing the sample to be detected is placed in the sample box in the sample chamber, then the light source is started, a specific wavelength of light source is generated through a series of light splitting devices, part of the light is absorbed after the light transmits through the cuvette sample to be tested, the absorbance of the sample is calculated, and the concentration of the sample is converted. However, although the dust cover has certain sealing property, it is still difficult to completely avoid the entry of external dust into the sample chamber, thereby affecting the light transmittance of the light path. If it is accumulated for a long time, the dust accumulated in the sample chamber and the surface of the optical element will interfere with the propagation and measurement of light, and the measurement accuracy is reduced. CONTENT OF THE UTILITY MODEL
[0004] The utility model aims at providing a spectrophotometer for detecting pollution gas content to solve the problems described in the background art.
[0005] The technical scheme of the utility model is as follows:
[0006] A spectrophotometer for detecting pollution gas content, comprising a main body, a display screen and a button are arranged on the top surface of the main body, and a sample chamber is arranged on the main body, a cover plate is connected to the top surface in the sample chamber, a sample holder is arranged in the sample chamber, a plurality of sample grooves are arranged in the sample holder, the sample grooves are used for receiving cuvettes, a cleaning assembly is arranged on the side edge and the bottom of the sample holder, a guide roller is connected to the other side of the sample holder, a movable plate is arranged on the side surface of the main body, a gripping end is connected to the other end of the guide roller through the movable plate, a sliding strip is arranged on the bottom of the movable plate, and the sliding strip extends into the main body and is slidably connected to the main body.
[0007] Further technical scheme is that the cleaning assembly comprises a first dust cleaning part, a second dust cleaning part and a third dust cleaning part, the first dust cleaning part is arranged on one side of the sample holder, the second dust cleaning part is arranged on the other side of the sample holder, and the third dust cleaning part is arranged on the bottom of the sample holder.
[0008] Further technical solutions are that the second dust removing member is arranged at the side of the sample holder light outlet.
[0009] Further technical solutions are that the first, second and third dust removing members are soft hair brushes.
[0010] Further technical solutions are that the guide roller comprises a connecting rod and a square rod, one end of the connecting rod is connected with the sample holder, the other end is connected with a gripping end through the movable plate, the square rod is fixedly arranged at the side wall of the sample chamber, the sample holder is slidingly connected with the outer periphery of the square rod, and the square rod is limitedly connected with the inside of the sample holder through a first limiting block.
[0011] Further technical solutions are that the main body is magnetically connected with the movable plate.
[0012] Further technical solutions are that the movable plate is internally provided with a pulley part, and the pulley part is used for clamping the circumferential side of the connecting rod.
[0013] Further technical solutions are that the gripping end is a round block.
[0014] Further technical solutions are that the end of the sliding bar is provided with a second limiting block, and the second limiting block slides in a sliding groove arranged in the main body.
[0015] Further technical solutions are that the inner side surface of the sliding groove is a smooth surface.
[0016] The beneficial effects of the utility model lie in:
[0017] 1. The sample holder is pulled out from the sample chamber through the guide roller, so that the dust removing assembly removes dust on the side wall and bottom surface in the sample chamber. When the sample holder contacts the movable plate, the movable plate is separated from the main body, and the sample holder and the movable plate are pulled out of the main body under the sliding support of the sliding bar, so that the subsequent overall dust removing treatment is facilitated, and the technical problem that the measurement accuracy is reduced due to the interference of light propagation and measurement caused by dust accumulation on the surface of the sample chamber and the optical element in the existing spectrophotometer if used for a long time is solved.
[0018] 2. The pulley block is adopted, the guide roller can smoothly slide in the movable plate, the sample holder can be aligned with the light wave, and the movable plate can be separated from the main body. DRAWINGS
[0019] Fig. 1 It is a general schematic view of the utility model;
[0020] Fig. 2 It is a front view of the utility model;
[0021] Fig. 3The utility model discloses a top view of the utility model;
[0022] Fig. 4 The utility model discloses a side sectional view of the utility model.
[0023] In the drawing, 1, main body, 2, sample chamber, 3, cover plate, 4, sample holder, 5, sample groove, 6, movable plate, 7, gripping end, 8, slide, 9, first dust removal part, 10, second dust removal part, 11, third dust removal part, 12, connecting rod, 13, square bar, 14, first limit, 15, pulley part, 16, second limit block. DETAILED DESCRIPTION
[0024] In order to better understand the technical content of the utility model, the specific embodiment is provided below, and the utility model is further explained in combination with the drawings.
[0025] Referring to Figs. 1 to 4 The utility model provides a kind of spectrophotometer for detecting the content of polluted gas, including main body 1, main body 1 top surface is equipped with display screen and button, and sample chamber 2, sample chamber 2 inner top surface is connected with cover plate 3, its inside is equipped with sample holder 4, sample holder 4 is equipped with multiple sample grooves 5, sample groove 5 is used to receive cuvette, sample holder 4 side and bottom are equipped with cleaning assembly, sample holder 4 other side is connected with guide roller, main body 1 side is equipped with movable plate 6, guide roller other end passes through movable plate 6 and is connected with gripping end 7, movable plate 6 bottom is equipped with slide 8, slide 8 extends into main body 1 and is slidably connected with it.
[0026] Main body 1 is existing spectrophotometer, and the detection function of spectrophotometer is controlled by display screen and button.
[0027] Specifically, gripping end 7 is gripped, sample holder 4 is pulled out from sample chamber 2 by guide roller, so that cleaning assembly removes dust on the side wall and bottom surface in sample chamber 2.When sample holder 4 contacts movable plate 6, movable plate 6 is separated from main body 1, under the sliding support of slide 8, sample holder 4 and movable plate 6 are pulled out of main body 1, which facilitates subsequent overall dust removal treatment, to solve the technical problem that if existing spectrophotometer is used for a long time, dust accumulates in the inside of sample chamber 2 and on the surface of optical element, which will interfere with the propagation and measurement of light, resulting in reduced measurement accuracy.
[0028] In the embodiment, the cleaning assembly includes first dust removal part 9, second dust removal part 10 and third dust removal part 11, first dust removal part 9 is arranged on one side of sample holder 4, second dust removal part 10 is arranged on the other side of sample holder 4, and third dust removal part 11 is arranged at the bottom of sample holder 4. First dust removal part 9, second dust removal part 10 and third dust removal part 11 are soft hair brushes.
[0029] The sample chamber 2 is cleaned by the first dust cleaning member 9, the second dust cleaning member 10 and the third dust cleaning member 11, so that the dust in the sample chamber 2 is completely cleaned, and the sample chamber 2 is kept clean. The sample holder 4 moved out of the main body 1 is cleaned by the cleaning tool to prevent the colorimetric cup from being tilted when placed in the sample groove 5 due to dust accumulation on the bottom surface of the sample groove 5, so that the colorimetric cup cannot be accurately detected by the light wave. At the same time, the first dust cleaning member 9, the second dust cleaning member 10 and the third dust cleaning member 11 are soft brushes, which do not damage the inner wall of the sample chamber 2 when cleaning the dust in the sample chamber 2.
[0030] Preferably, the second dust cleaning member 10 is arranged at the side of the light outlet of the sample holder 4.
[0031] The second dust cleaning member 10 is opposite to the side of the light wave detection, and when the second dust cleaning member 10 is arranged, the second dust cleaning member 10 avoids blocking the sample groove 5 and prevents the second dust cleaning member 10 from blocking the light wave to detect the colorimetric cup.
[0032] In the embodiment, the guide roller includes a connecting rod 12 and a square rod 13. One end of the connecting rod 12 is connected with the sample holder 4, and the other end of the connecting rod 12 passes through the movable plate 6 and is connected with a gripping end 7. The square rod 13 is fixedly arranged on the side wall of the sample chamber 2. The sample holder 4 is slidably connected with the outer periphery of the square rod 13. The square rod 13 is provided with a first limiting block 14 which is limitingly connected with the inside of the sample holder 4. The gripping end 7 is a round block.
[0033] When the sample holder 4 is moved out, the round block is gripped, the round block slides in the movable plate 6 through the connecting rod 12, until the sample holder 4 is pulled into contact with the inner side of the movable plate 6, the movable plate 6 is separated from the main body 1 by abutting against the movable plate 6. During the movement of the sample holder 4, the sample holder 4 is supported by the square rod 13, and the square rod 13 is limited to prevent the sample holder 4 from shaking, so that the sample holder 4 stably slides through the square rod 13 when the colorimetric cup is placed in the sample groove 5, and the light wave stably detects the colorimetric cup.
[0034] In addition, the square rod 13 is provided with a first limiting block 14 for limiting the sample holder 4 from being separated from the square rod 13.
[0035] Preferably, the main body 1 and the movable plate 6 are magnetically connected.
[0036] The magnetic connection between the main body 1 and the movable plate 6 can stabilize the movable plate 6 on the side of the main body 1, so that the movable plate 6 is not easily separated from the main body 1 when the connecting rod 12 slides, and the normal work is not affected.
[0037] In a preferred embodiment, the movable plate 6 is provided with a pulley part 15 for clamping the connecting rod 12.
[0038] The connecting rod 12 is provided with two pulley groups on the upper and lower sides when sliding in the movable plate 6, and the two pulley groups are referred to as pulley parts 15. The two pulley groups facilitate smooth sliding of the connecting rod 12 between the pulley groups, and improve the flexibility of sliding.
[0039] In the embodiment, the end of the sliding bar 8 is provided with a second limiting block 16 which slides in a sliding groove provided in the main body 1.
[0040] The second limiting block 16 at the end of the sliding bar 8 prevents the movable plate 6 from being separated from the main body 1, and the movable plate 6 is completely separated from the outside of the main body 1.
[0041] Preferably, the inner side surface of the sliding groove is smooth, which improves the flexibility of sliding of the sliding bar 8.
[0042] The above only describes the preferred embodiments of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A spectrophotometer for detecting the content of a contaminated gas, characterized by, The utility model relates to a portable colorimetric analysis device, including main part, the main part top is equipped with display screen and button, and sample chamber, the sample chamber inner top is connected with cover plate, and its inside is equipped with sample holder, the sample holder is equipped with a plurality of sample groove in, the sample groove is used for receiving cuvette, the sample holder side and bottom are equipped with clear component, the sample holder other side is connected with guide roller, the main part side is equipped with movable plate, the guide roller other end passes through movable plate and is connected with the end of holding, and the movable plate bottom is equipped with slide, and the slide extends into main part and is slidably connected with it.
2. The spectrophotometer for detecting the content of contaminated gas according to claim 1, wherein The clear component includes first dust removal part, second dust removal part and third dust removal part, the first dust removal part sets up one side of the sample holder, the second dust removal part sets up the other side of the sample holder, and the third dust removal part sets up the bottom of the sample holder.
3. The spectrophotometer for detecting the content of contaminated gas according to claim 2, wherein The second dust removal part is spaced apart from the light outlet side of the sample holder.
4. The spectrophotometer for detecting the content of contaminated gas according to claim 2, wherein The first dust removal part, the second dust removal part and the third dust removal part are soft hair brushes.
5. The spectrophotometer for detecting the content of contaminated gas according to claim 1, wherein The guide roller includes a connecting rod and a square rod, one end of the connecting rod is connected with the sample holder, the other end of the connecting rod is connected with the end of holding through the movable plate, the square rod is fixedly arranged on the side wall of the sample chamber, the sample holder is slidably connected with the outer periphery of the square rod, and the square rod is provided with a first limiting block which is limitingly connected with the inside of the sample holder.
6. The spectrophotometer for detecting the content of contaminated gas according to claim 5, wherein The main body is magnetically connected with the movable plate.
7. The spectrophotometer for detecting the content of contaminated gas according to claim 5, wherein The movable plate is provided with a pulley portion for clamping the connecting rod.
8. The spectrophotometer for detecting the content of contaminated gas according to claim 5, wherein The end of holding is a round block.
9. The spectrophotometer for detecting the content of contaminated gas according to claim 1, wherein The end of the slide is provided with a second limiting block which is slidably arranged in a sliding groove provided in the main body.
10. The spectrophotometer for detecting the content of a contaminated gas according to claim 9, wherein The inner side of the sliding groove is a smooth surface. The utility model relates to a portable colorimetric analysis device, including main part, the main part top is equipped with display screen and button, and sample chamber, the sample chamber inner top is connected with cover plate, and its inside is equipped with sample holder, the sample holder is equipped with a plurality of sample groove in, the sample groove is used for receiving cuvette, the sample holder side and bottom are equipped with clear component, the sample holder other side is connected with guide roller, the main part side is equipped with movable plate, the guide roller other end passes through movable plate and is connected with the end of holding, and the movable plate bottom is equipped with slide, and the slide extends into main body and is slidably connected with it.