Rapid environmental pollutant detection device based on spectral characteristics

Abstract

The invention provides an environmental pollutant rapid detection device based on spectral characteristics, and relates to the technical field of environmental pollutant rapid detection.The environmental pollutant rapid detection device comprises a follow-up groove formed in the side wall of a fixing frame, a limiting ring is installed in the follow-up groove in a sliding mode, and a follow-up wheel is installed on the outer wall of the limiting ring; a motor is fixedly installed on the fixing frames, the extending end of the motor is connected with a synchronizing shaft, two driving wheels are fixedly installed on the synchronizing shaft, the driving wheels are meshed with the follow-up wheels, two fixing wheels are fixedly installed on the two fixing frames respectively, a semicircular frame is installed on the limiting ring, and the semicircular frame is fixedly installed on the limiting ring. The device adopts a unique turnover semicircular frame structure, so that the mounting and fixing processes of the detection tube are more efficient, in an initial state, an operator only needs to rotate the semicircular frame to a position aligned with an opening of the fixing frame, the detection tube can be easily inserted, the fixing mechanism adopts a bidirectional pressure spring and unidirectional buckle design, and only a pull rod needs to be pushed inwards.

Description

Technical Field

[0001] The present invention relates to the technical field of rapid detection of environmental pollutants. More specifically, it relates to a rapid detection device for environmental pollutants based on spectral characteristics. Background Art

[0002] In the prior art, rapid detection devices for environmental pollutants based on spectral characteristics usually adopt optical detection principles, and qualitative and quantitative detection of pollutants is achieved by analyzing the absorption, scattering or fluorescence characteristics of water samples to specific wavelength light. However, such devices have obvious limitations in actual operation. When detecting, a transparent detection tube containing a water sample needs to be placed in the optical path of an optical detector. However, the design of the detection tube fixing structure of existing devices is often not reasonable enough. Common slot-type or threaded fixing methods are either difficult to achieve rapid alignment or require cumbersome rotation operations. In field sampling or continuous detection scenarios, operators often need to repeatedly adjust the position of the detection tube to obtain stable readings, which not only reduces the detection efficiency but also may lead to unsatisfactory optical coupling and affect the detection accuracy.

[0003] The fixing mechanism either has insufficient clamping force, resulting in the loosening of the detection tube during transportation, or excessive clamping force causing the glass detection tube to break. In addition, most devices do not integrate a rapid release mechanism, and both hands are required for sample replacement, unable to adapt to emergency detection scenarios that require single-handed operation. These mechanical design defects greatly reduce the smoothness of the entire detection process. Especially under harsh on-site detection conditions, the problem of inconvenient operation will be further amplified, severely restricting the promotion and application value of the device in the field of environmental monitoring. Summary of the Invention

[0004] (I) Technical Problems to be Solved Aiming at the problems existing in the prior art, the present invention provides a rapid detection device for environmental pollutants based on spectral characteristics to solve the technical problems mentioned in the background art.

[0005] (II) Technical Solutions To achieve the above object, the present invention provides the following technical solution: A rapid detection device for environmental pollutants based on spectral characteristics, including a fixing frame installed in the external environment; further including a flipping mechanism, the flipping mechanism includes a follower groove opened on the side wall of the fixing frame, a limiting ring is slidably installed in the follower groove, a follower wheel is installed on the outer wall of the limiting ring, a motor is fixedly installed on the fixing frame, the extending end of the motor is connected with a synchronous shaft, two driving wheels are fixedly installed on the synchronous shaft, the driving wheels are engaged with the follower wheels, and two fixing wheels are respectively and fixedly installed on the two fixing frames, and a semi-circular frame is installed on the limiting ring; further including a fixing mechanism, the fixing mechanism includes a side sleeve installed on the side wall of the fixing frame, two bidirectional plates are symmetrically and slidably connected to the side sleeve, and a pull rod is respectively slidably connected in each side sleeve, and pressing plates are respectively installed on the two pull rods.

[0006] Preferably, the flipping mechanism further includes a fitting groove opened in the semi-circular frame, an accelerating belt is rotatably connected in the fitting groove, a fitting ring is installed in the fitting groove, and the inner wall of the accelerating belt is attached to the fitting ring.

[0007] Preferably, a plurality of external grooves are opened on the outer wall of the accelerating belt, the fixing wheels are engaged in the external grooves, and an accelerating block is slidably connected with a limit on the fitting ring.

[0008] Preferably, a plurality of internal teeth are installed at equal intervals on the inner wall of the accelerating belt, a follower tooth is installed on the accelerating block, the follower tooth is engaged with the internal teeth, intermediate rods are respectively installed at both ends of the semi-circular frame, a connecting wheel is rotatably installed on the intermediate rod, and the connecting wheel is engaged with the internal teeth.

[0009] Preferably, an insertion rod is installed on the accelerating block, a detector is installed on the insertion rod, an opening is opened on the fixing frame, a detection tube is clamped and installed in the opening, and the detector is on the side wall of the detection tube.

[0010] Preferably, the fixing mechanism further includes two compression springs installed on the pressing plate, and the two compression springs respectively press on the side wall of the detection tube. A one-way rod is slidably connected to the side wall of the side sleeve, a flat groove is opened on the side wall of the pull rod, and the one-way rod is stuck in the flat groove.

[0011] Preferably, a bevel groove is opened on the other side of each flat groove, a progressive groove is opened on the other side of the one-way rod, a top ball is respectively installed on each one-way rod, and a telescopic plate is connected between the two top balls. A reset spring is installed on the telescopic plate, and the other end of the reset spring is connected to the side wall of the side sleeve.

[0012] Preferably, a two-way sleeve is symmetrically and slidably connected to each of the side sleeves, a variable pitch groove is formed in each of the two-way sleeves, and each of the variable pitch grooves is stuck on the top ball.

[0013] Preferably, a plurality of tension springs are equidistantly installed between the two two-way sleeves, and the two-way plate presses on the two-way sleeves.

[0014] (III) Beneficial effects Compared with the prior art, the present invention provides a rapid detection device for environmental pollutants based on spectral characteristics, which has the following beneficial effects: The device adopts a unique flip-type semi-circular frame structure, which makes the installation and fixation process of the detection tube more efficient. In the initial state, the operator only needs to rotate the semi-circular frame to the position aligned with the opening of the fixed frame, and then can easily insert the detection tube. The fixing mechanism adopts a two-way compression spring and a one-way buckle design. Only by pushing the pull rod inward, the compression spring will automatically apply uniform pressure to firmly fix the detection tube on the optical detection path, avoiding displacement caused by vibration or improper operation. When it is necessary to replace the sample, only need to pinch the two-way plate to quickly release the detection tube. The whole process does not require complex operations, greatly improving the convenience of on-site detection, especially suitable for continuous monitoring scenarios that require frequent sample replacement.

[0015] The device drives the semi-circular frame to rotate smoothly through the synchronous shaft and gear transmission system driven by the motor, so that the detector continuously scans along the outer wall of the detection tube. At the same time, the innovative acceleration belt and internal tooth meshing structure enable the detector to rotate along the fitting circle while revolving with the semi-circular frame, realizing the full-range coverage detection of the detection tube. This dual motion mode ensures the comprehensive acquisition of spectral data, avoiding the blind area problem that may exist in traditional fixed detection, thereby improving the accuracy and reliability of the detection results. In addition, the meshing design of the fixed wheel and the acceleration belt further improves the stability, reduces the interference of mechanical vibration on the optical signal, and ensures that the signal-to-noise ratio of the spectral data reaches the best level.

[0016] The overall structural design of the device fully considers the human-computer interaction requirements. The flip mechanism of the semi-circular frame not only facilitates the installation of the detection tube, but also provides a stable motion trajectory during the detection process. The one-way buckle and progressive unlocking design of the fixing mechanism make the fixing and releasing operations of the detection tube intuitive and reliable, avoiding equipment damage caused by misoperation. At the same time, the linkage design of the two-way sleeve and the variable pitch groove makes the unlocking process smoother, and the operator only needs to pinch with one hand to complete the replacement of the detection tube.

[0017] The rapid detection device for environmental pollutants based on spectral characteristics realizes an efficient and accurate pollutant detection process through innovative mechanical transmission, dynamic scanning, and convenient fixation design. Its advantages are not only reflected in the detection speed and accuracy but also in simplifying the complex operation steps of traditional spectral detection equipment, making it more suitable for on-site rapid detection needs and providing reliable technical support for the field of environmental monitoring. Brief Description of the Drawings

[0018] Figure 1 It is a schematic diagram of the overall structure of a rapid detection device for environmental pollutants based on spectral characteristics in the present invention; Figure 2 It is a schematic diagram of the structure of the fixing frame in the present invention; Figure 3 It is a schematic diagram of the structure of the fixing frame and the semi-circular frame in the present invention; Figure 4 It is a schematic cross-sectional view of the fixing frame in the present invention; Figure 5 It is an exploded view of the semi-circular frame, the acceleration belt, and the insertion rod in the present invention; Figure 6 It is an exploded cross-sectional view of the limit ring and the semi-circular frame in the present invention; Figure 7 It is a schematic diagram of the structure of the side sleeve and the bidirectional sleeve in the present invention; Figure 8 It is a schematic diagram of the structure of the side sleeve and the pull rod in the present invention; Figure 9 It is a schematic cross-sectional view of the side sleeve in the present invention; Figure 10 It is a schematic diagram of the structure of the one-way rod and the top ball in the present invention.

[0019] In the figure: 11, fixing frame; 21, follower groove; 22, limit ring; 23, follower wheel; 24, motor; 25, synchronous shaft; 26, driving wheel; 27, fixed wheel; 28, semi-circular frame; 29, fitting groove; 31, side sleeve; 32, bidirectional plate; 33, pull rod; 34, pressing plate; 35, compression spring; 36, one-way rod; 37, flat groove; 38, bevel groove; 39, progressive groove; 210, acceleration belt; 211, fitting ring; 212, external groove; 213, acceleration block; 214, internal teeth; 215, follower teeth; 216, intermediate rod; 217, connecting wheel; 218, insertion rod; 219, detector; 220, opening; 221, detection tube; 310, top ball; 311, telescopic plate; 312, reset spring; 313, bidirectional sleeve; 314, variable pitch groove; 315, tension spring. Detailed Description of the Invention

[0020] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0021] It should be pointed out that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs.

[0022] In the present invention, unless otherwise stated, the orientations such as "upper, lower" are generally in the direction shown in the drawings, or in the vertical, perpendicular or gravitational direction; similarly, for the convenience of understanding and description, "left, right" are generally left and right as shown in the drawings; "inner, outer" refer to the inner and outer of the contour of each component itself, but the above orientation terms are not used to limit the present invention.

[0023] Please refer to Figures 1 to 10 a rapid detection device for environmental pollutants based on spectral characteristics, including a fixing frame 11 installed outside; further including a flipping mechanism, the flipping mechanism includes a follower groove 21 opened on the side wall of the fixing frame 11, a limiting ring 22 is slidably installed in the follower groove 21, a follower wheel 23 is installed on the outer wall of the limiting ring 22, a motor 24 is fixedly installed on the fixing frame 11, the extending end of the motor 24 is connected with a synchronous shaft 25, two driving wheels 26 are fixedly installed on the synchronous shaft 25, the driving wheels 26 are engaged on the follower wheel 23, and two fixing wheels 27 are respectively fixedly installed on the two fixing frames 11, a semi-circular frame 28 is installed on the limiting ring 22, the flipping mechanism further includes a fitting groove 29 opened in the semi-circular frame 28, an accelerating belt 210 is rotatably connected in the fitting groove 29, a fitting ring 211 is installed in the fitting groove 29, the inner wall of the accelerating belt 210 is attached to the fitting ring 211, a plurality of external grooves 212 are opened on the outer wall of the accelerating belt 210, the fixing wheels 27 are engaged in the external grooves 212, an accelerating block 213 is slidably connected in a limited manner on the fitting ring 211, a plurality of internal teeth 214 are installed at equal intervals on the inner wall of the accelerating belt 210, a follower tooth 215 is installed on the accelerating block 213, the follower tooth 215 is engaged in the internal teeth 214, intermediate rods 216 are respectively installed at both ends of the semi-circular frame 28, a connecting wheel 217 is rotatably installed on the intermediate rods 216, the connecting wheel 217 is engaged in the internal teeth 214, an insertion rod 218 is installed on the accelerating block 213, a detector 219 is installed on the insertion rod 218, an opening 220 is opened on the fixing frame 11, a detection tube 221 is clamped and installed in the opening 220, and the detector 219 is located on the side wall of the detection tube 221.

[0024] When fixing the detection tube 221, first, the semi-circular frame 28 can be rotated to the same position as the opening 220. At this time, the detection tube 221 can be conveniently inserted into the fixing frame 11. Then, the compression spring 35 presses on both sides of the detection tube 221, and at this time, the detection tube 221 will be fixed. By rotating the semi-circular frame 28, the detector 219 will be driven to detect along the detection tube 221, thus completing the detection process.

[0025] When detection is required, the rotation of the semi-circular frame 28 needs to be driven. First, the motor 24 drives the rotation of the synchronous shaft 25. Since the driving wheel 26 is fixedly connected to the synchronous shaft 25 and the driving wheel 26 meshes with the follower wheel 23, the semi-circular frame 28 will be driven to rotate. At this time, the limiting ring 22 will slide along the follower groove 21. Since the detector 219 is connected to the semi-circular frame 28, it will rotate along with the semi-circular frame 28 for the detection process. And a fixed wheel 27 is fixedly installed on the fixing frame 11, and the fixed wheel 27 meshes with the external groove 212. Since the rotation of the semi-circular frame 28 will drive the synchronous rotation of the acceleration belt 210, but the fixed wheel 27 and the fixing frame 11 are in a fixed state, and the fixed wheel 27 meshes with the external groove 212 on the outside of the acceleration belt 210, the acceleration belt 210 will rotate on the two connecting wheels 217. And the follower tooth 215 meshes with the internal tooth 214, so the acceleration block 213 will be driven to slide along the fitting ring 211. At this time, the state is that the semi-circular frame 28 rotates along the fixing frame 11, and the acceleration block 213 rotates along the fitting ring 211. Therefore, the detector 219 on the acceleration block 213 not only rotates along the semi-circular frame 28 but also slides along the fitting ring 211. When the semi-circular frame 28 rotates half a turn, the acceleration block 213 drives the detector 219 to make a full turn. Therefore, it not only ensures that the detection tube 221 can be conveniently installed on the fixing frame 11, but also can completely drive the detector 219 to rotate and detect along the detection tube 221, thus completing the spectral detection process.

[0026] The fixing mechanism includes side sleeves 31 installed on the side walls of the fixing frame 11. Two double-sided plates 32 are symmetrically and slidably connected to the side sleeves 31. A pull rod 33 is slidably connected to each side sleeve 31. Pressure plates 34 are respectively installed on the two pull rods 33. The fixing mechanism further includes two compression springs 35 installed on the pressure plates 34, and the two compression springs 35 are respectively pressed against the side walls of the detection tube 221. A one-way rod 36 is slidably connected to the side wall of the side sleeve 31. A flat groove 37 is formed on the side wall of the pull rod 33. The one-way rod 36 is stuck in the flat groove 37. A bevel groove 38 is formed on the other side of each flat groove 37. A progressive groove 39 is formed on the other side of the one-way rod 36. A top ball 310 is respectively installed on each one-way rod 36. A telescopic plate 311 is connected between the two top balls 310. A return spring 312 is installed on the telescopic plate 311, and the other end of the return spring 312 is connected to the side wall of the side sleeve 31. Two double-sided sleeves 313 are symmetrically and slidably connected to each side sleeve 31. A variable pitch groove 314 is formed on each double-sided sleeve 313, and each variable pitch groove 314 is respectively stuck on the top ball 310. A plurality of tension springs 315 are installed at equal intervals between the two double-sided sleeves 313. The double-sided plates 32 are pressed against the double-sided sleeves 313.

[0027] When the detection tube 221 is installed on the fixing frame 11, the detection tube 221 needs to be fixed. First, the two pull rods 33 are respectively inserted into the side sleeves 31. Then, the compression springs 35 are pressed against the side walls of the detection tube 221, and the flat grooves 37 on the pull rods 33 are stuck on the one-way rods 36. Therefore, the one-way clamping effect is ensured, and thus the fixing process is guaranteed. Briefly speaking, inserting the pull rods 33 into the side sleeves 31 and pushing them inward can complete the fixing process of the detection tube 221.

[0028] When it needs to be unlocked, pinch the two double-sided plates 32. Since the double-sided plates 32 are stuck on the double-sided sleeves 313, the two symmetric double-sided sleeves 313 will be driven to approach each other. Then, when the variable pitch groove 314 abuts against the top ball 310, the top ball 310 will be pushed outward, thereby unlocking the clamping between the one-way rod 36 and the flat groove 37. At this time, the detection tube 221 can be taken out, and thus the unlocking process is completed. Briefly speaking, pinching the two double-sided plates 32 will unlock the connection between the pull rod 33 and the side sleeve 31, and then pulling out the pull rod 33 will complete the unlocking process.

[0029] Among all the solutions mentioned above, for the connection between two components, welding, the connection with bolts and nuts, bolt or screw connection, or other well-known connection methods can be selected according to the actual situation, which will not be elaborated one by one here. For all the cases of fixed connection mentioned above, welding is preferably considered. Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rapid detection device for environmental pollutants based on spectral characteristics, comprising a fixing frame (11) installed outside; characterized in that: It further includes a flipping mechanism, the flipping mechanism includes a follower groove (21) opened on the side wall of the fixed frame (11), a limiting ring (22) is slidably installed in the follower groove (21), a follower wheel (23) is installed on the outer wall of the limiting ring (22), a motor (24) is fixedly installed on the fixed frame (11), the extending end of the motor (24) is connected with a synchronous shaft (25), two driving wheels (26) are fixedly installed on the synchronous shaft (25), the driving wheels (26) are engaged on the follower wheel (23), and two fixed wheels (27) are respectively fixedly installed on the two fixed frames (11), a semi-circular frame (28) is installed on the limiting ring (22); it further includes a fixing mechanism, the fixing mechanism includes a side sleeve (31) installed on the side wall of the fixed frame (11), two bidirectional plates (32) are symmetrically and slidably connected to the side sleeve (31), a pull rod (33) is respectively slidably connected in each side sleeve (31), and pressing plates (34) are respectively installed on the two pull rods (33).

2. The rapid detection device for environmental pollutants based on spectral characteristics according to claim 1, wherein: The flipping mechanism further includes a fitting groove (29) opened in the semi-circular frame (28), an accelerating belt (210) is rotatably connected in the fitting groove (29), a fitting ring (211) is installed in the fitting groove (29), and the inner wall of the accelerating belt (210) is fitted on the fitting ring (211).

3. The rapid detection device for environmental pollutants based on spectral features according to claim 2, wherein: A plurality of external grooves (212) are opened on the outer wall of the accelerating belt (210), the fixed wheel (27) is engaged in the external grooves (212), and an accelerating block (213) is slidably connected with a limit on the fitting ring (211).

4. The rapid detection device for environmental pollutants based on spectral characteristics according to claim 3, characterized in that: A plurality of internal teeth (214) are equidistantly installed on the inner wall of the accelerating belt (210), a follower tooth (215) is installed on the accelerating block (213), the follower tooth (215) is engaged on the internal teeth (214), intermediate rods (216) are respectively installed at both ends of the semi-circular frame (28), a connecting wheel (217) is rotatably installed on the intermediate rod (216), and the connecting wheel (217) is engaged on the internal teeth (214).

5. The rapid detection device for environmental pollutants based on spectral features according to claim 4, characterized in that: An insertion rod (218) is installed on the accelerating block (213), a detector (219) is installed on the insertion rod (218), an opening (220) is opened on the fixed frame (11), a detection tube (221) is snap-fitted and installed in the opening (220), and the detector (219) is located on the side wall of the detection tube (221).

6. The rapid detection device for environmental pollutants based on spectral features according to claim 1, wherein: The fixing mechanism further includes two compression springs (35) installed on the pressing plate (34), and the two compression springs (35) respectively press on the side wall of the detection tube (221), a one-way rod (36) is slidably connected to the side wall of the side sleeve (31), a flat groove (37) is opened on the side wall of the pull rod (33), and the one-way rod (36) is stuck in the flat groove (37).

7. The rapid detection device for environmental pollutants based on spectral features according to claim 6 is characterized in that: each On the other side of the planar groove (37), a bevel groove (38) is provided. On the other side of the one-way rod (36), a progressive groove (39) is provided. A top ball (310) is respectively installed on each one-way rod (36), and a telescopic plate (311) is connected between the two top balls (310). A return spring (312) is installed on the telescopic plate (311), and the other end of the return spring (312) is connected to the side wall of the side sleeve (31).

8. The rapid detection device for environmental pollutants based on spectral characteristics according to claim 7, characterized in that: A two-way sleeve (313) is symmetrically and slidably connected to each side sleeve (31), and a variable pitch groove (314) is respectively provided on each two-way sleeve (313), and each variable pitch groove (314) is respectively stuck on the top ball (310).

9. A rapid detection device for environmental pollutants based on spectral characteristics according to claim 8, characterized in that: A plurality of tension springs (315) are equidistantly installed between the two two-way sleeves (313), and the two-way plate (32) presses on the two-way sleeves (313).

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