A spectrophotometer for uniform measurement

Abstract

The present invention discloses a spectrophotometer for uniform measurement, belonging to the technical field of spectrophotometers. It includes a machine body, a detachable cleaning mechanism and a follow-up mixing mechanism. A measurement chamber is provided on the machine body, and a cover body is axially connected to the measurement chamber. An upper support plate and a lower support plate are arranged in the measurement chamber, and the upper support plate is arranged above the lower support plate. A support block is connected to the upper surface of the lower support plate by a bearing, and a through hole is provided at a position corresponding to the support block on the upper support plate. The upper support plate is of a hollow structure, and the through hole penetrates through the upper and lower sides of the upper support plate. The invention can rotate the test tube during the process of covering the cover body, so as to shake the liquid in the test tube, prevent precipitation in the test tube, and thus can uniformly measure the liquid in the test tube. In addition, during the process of inserting the test tube into a fixed position in the measurement chamber, the outer wall of the test tube can be cleaned, reducing the possibility of dust in the air adhering to the outer wall of the test tube, and thus helping to improve the measurement accuracy.

Description

Technical Field

[0001] The present invention relates to the technical field of spectrophotometers, and particularly to a spectrophotometer for uniform measurement. Background Art

[0002] A spectrophotometer is a scientific instrument that decomposes complex light into spectral lines. By wavelength, light is divided into the visible light region and the ultraviolet light region. Since the light transmittance of different liquids is different, the contamination situation of different liquids can be measured by a spectrophotometer.

[0003] When the existing spectrophotometers are in use, there are still the following technical problems, such as:

[0004] 1. When the existing spectrophotometers are in use, they cannot uniformly measure the liquid to be measured because there will be precipitation in the liquid, and thus, when measuring, the liquid to be measured cannot be uniformly measured.

[0005] 2. When the existing spectrophotometers are in use, the outer wall of the test tube containing the liquid to be measured is generally wiped to avoid the dust and other substances adhering to the outer wall of the test tube affecting the measurement result during measurement. However, during the process of placing the wiped test tube into the measurement position, dust in the air easily adheres to the outer wall of the test tube, which is not conducive to improving the measurement accuracy.

[0006] Therefore, a spectrophotometer for uniform measurement is needed to solve the above problems. Summary of the Invention

[0007] The purpose of the present invention is to provide a spectrophotometer for uniform measurement to solve the problems in the above background art that the existing spectrophotometers are not convenient for uniformly measuring liquids with precipitation and cannot avoid dust in the air adhering to the outer wall of the test tube during the process of placing the test tube into the measurement position.

[0008] To achieve the above purpose, the present invention provides the following technical solutions:

[0009] A spectrophotometer for uniform measurement, including a machine body, a detachable cleaning mechanism, and a follow-up mixing mechanism. A measurement chamber is provided on the machine body, and a cover body is axially connected to the measurement chamber. An upper support plate and a lower support plate are provided in the measurement chamber, and the upper support plate is arranged above the lower support plate. The upper surface of the lower support plate is rotationally connected to a support block, and a through hole is provided at a position corresponding to the support block on the upper support plate. The upper support plate is a hollow structure, and the through hole penetrates the upper and lower sides of the upper support plate. The upper support plate is provided with a detachable cleaning mechanism, and an installation groove is further provided on the machine body, and the installation groove is connected to the detachable cleaning mechanism through the follow-up mixing mechanism.

[0010] Preferably, the follow-up type mixing mechanism includes a rope, a guide roller, a limit track groove, a shaft column, a ring groove, a shaft block, a toothed plate, a rope winding groove, a rope winding shaft, a ratchet and pawl structure and a torsion spring. A shaft column and a rope winding shaft are connected by bearings in the installation groove, and the shaft column and the rope winding shaft are coaxially connected by bearings. There are 2 rope winding grooves provided on the rope winding shaft, and one end of the corresponding rope is connected in each rope winding groove. A groove is provided at the position where the shaft column is connected to the rope winding shaft, and the rope winding shaft extends into the groove and is connected to the shaft column by a bearing. The outer side of the part of the rope winding shaft extending into the groove is connected to the inner wall of the groove through a ratchet and pawl structure, and the groove is a cylindrical groove structure coaxial with the rope winding shaft. The end of the rope winding shaft extending into the groove is also connected to the inner wall of the groove through a torsion spring. A ring groove is provided on the shaft column, and 2 shaft blocks are slidably connected in the ring groove. The 2 shaft blocks are respectively connected to the sides of one ends of the 2 toothed plates, and the other ends of the 2 toothed plates both movably penetrate into the upper support plate. The toothed plates are slidably connected in the limit track grooves, and the limit track grooves are provided on both sides inside the upper support plate. Guide rollers are provided on the inner part of the installation groove, the surface of the measuring bin and the front end of the lower surface of the cover body, and the other end of the rope passes through the guide rollers on the inner part of the installation groove and the surface of the measuring bin in sequence and is connected to the guide roller at the front end of the lower surface of the cover body.

[0011] Preferably, the ring groove is arranged obliquely to the shaft column. By arranging the ring groove obliquely, when the shaft column rotates, the 2 shaft blocks slidably connected to the ring groove move reciprocally.

[0012] Preferably, the ropes are wound in the same direction on the 2 rope winding grooves. By winding the 2 ropes in the same way, the purpose of synchronously releasing or tightening the 2 ropes when the rope winding shaft rotates is achieved.

[0013] Preferably, the detachable cleaning mechanism includes a transmission gear, a pinch rod, a cleaning sponge ring, a connecting ring, a connecting shaft and a connecting hole. The connecting ring is connected by a bearing to the through hole at the lower position, and a connecting shaft is provided on the upper surface of the connecting ring. The connecting shaft is snap-fitted into the connecting hole, and the connecting hole is provided on the lower surface of the transmission gear. The transmission gear is meshed and connected between the 2 toothed plates, and a pinch rod is provided on the upper surface of the transmission gear. The cleaning sponge ring is installed on the inner side of the transmission gear by adhesion.

[0014] Preferably, the maximum outer diameter of the transmission gear is smaller than the inner diameter of the through hole, which is convenient for removing the transmission gear, so that the cleaning sponge ring can be replaced.

[0015] Preferably, the upper surface of the support block is a smooth concave structure.

[0016] Preferably, the cover body and the measuring bin fit well, which is convenient for forming a dark space in the measuring bin after the cover body is covered, facilitating measurement.

[0017] Preferably, the inner diameter of the cleaning sponge ring is smaller than the outer diameter of the test tube containing the liquid to be measured, which not only facilitates the cleaning sponge ring to clean the outer wall of the test tube, but also facilitates the rotation of the cleaning sponge ring to drive the test tube to rotate.

[0018] Compared with the prior art, the present invention has the following beneficial effects: the spectrophotometer for uniform measurement can rotate the test tube when the cover is closed, thereby shaking the liquid in the test tube and preventing precipitation in the test tube, thereby uniformly measuring the liquid in the test tube; in addition, when the test tube is inserted into a fixed position in the measuring chamber, the outer wall of the test tube can be cleaned, thereby reducing the possibility of dust in the air adhering to the outer wall of the test tube, thereby helping to improve the measurement accuracy:

[0019] 1. During the process of opening the cover, the rope is used to rotate the rope shaft, and the torsion spring is charged. After the test tube is inserted into a fixed position, the cover is closed. At this time, under the action of the torsion spring, the rope shaft rotates in the opposite direction, thereby winding the rope. Moreover, under the action of the ratchet structure, the shaft column rotates synchronously with the rope shaft. Then, under the action of the ring groove and the shaft block, the two tooth plates move back and forth, causing the transmission gear to rotate back and forth, thereby shaking the liquid in the test tube. At the same time, since the transmission gear drives the test tube to rotate back and forth, bubbles in the test tube can be avoided. Not only can the liquid in the test tube be measured evenly, but also bubbles can be avoided from affecting the measurement results.

[0020] 2. When the test tube passes through the cleaning sponge ring, the cleaning sponge ring will clean the outer wall of the test tube. At this time, the cleaning sponge ring cleans the outer wall of the test tube, which can reduce the possibility of dust in the air adhering to the outer wall of the test tube, thereby facilitating the improvement of the accuracy of the measurement results. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0022] Figure 2 It is a partial cross-sectional structural schematic diagram of the present invention;

[0023] Figure 3 This is a schematic diagram of the position structure of the upper support plate and the lower support plate of the present invention;

[0024] Figure 4 For the present invention Figure 3 A schematic diagram of the enlarged structure of point A;

[0025] Figure 5 This is a schematic diagram of the cross-sectional connection structure of the upper support plate of the present invention;

[0026] Figure 6 For the present invention Figure 5 A schematic diagram of the enlarged structure of point B in the middle;

[0027] Figure 7Schematic diagram of the connection structure between the toothed plate and the transmission gear of the present invention;

[0028] Figure 8 Schematic diagram of the exploded connection structure between the connecting ring and the toothed plate of the present invention. In the figure: 1. Machine body; 2. Cover body; 3. Measuring chamber; 4. Upper support plate; 5. Rope; 6. Guide roller; 7. Lower support plate; 8. Support block; 9. Limit track groove; 10. Through hole; 11. Shaft column; 12. Ring groove; 13. Shaft block; 14. Toothed plate; 15. Rope winding groove; 16. Installation groove; 17. Rope winding shaft; 18. Pawl and ratchet structure; 19. Torsion spring; 20. Transmission gear; 21. Pinch rod; 22. Cleaning sponge ring; 23. Connecting ring; 24. Connecting shaft; 25. Connecting hole. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] Please refer to Figures 1-8 , the present invention provides the following technical solutions:

[0031] Embodiment 1:

[0032] To solve the problem that dust is easily adhered to the outer wall of the test tube during the process of putting the test tube into the spectrophotometer in the past, the following technical solutions are provided. Specifically,

[0033] A spectrophotometer for uniform measurement includes a machine body 1, a detachable cleaning mechanism, and a follow-up mixing mechanism. A measuring chamber 3 is provided on the machine body 1, and a cover body 2 is axially connected to the measuring chamber 3. An upper support plate 4 and a lower support plate 7 are provided in the measuring chamber 3, and the upper support plate 4 is arranged above the lower support plate 7. A support block 8 is connected to the upper surface of the lower support plate 7 by a bearing, and a through hole 10 is provided at a position corresponding to the support block 8 on the upper support plate 4. The upper support plate 4 is a hollow structure, and the through hole 10 penetrates through the upper and lower sides of the upper support plate 4. A detachable cleaning mechanism is provided on the upper support plate 4.

[0034] The detachable cleaning mechanism includes a transmission gear 20, a pinch rod 21, a cleaning sponge ring 22, a connecting ring 23, a connecting shaft 24 and a connecting hole 25. The connecting ring 23 is connected to the through hole 10 at the lower position by a bearing, and a connecting shaft 24 is provided on the upper surface of the connecting ring 23. The connecting shaft 24 is snap-connected into the connecting hole 25, and the connecting hole 25 is provided on the lower surface of the transmission gear 20. The transmission gear 20 is meshed between two toothed plates 14, and a pinch rod 21 is provided on the upper surface of the transmission gear 20. The cleaning sponge ring 22 is installed inside the transmission gear 20 by adhesion. The cleaning sponge ring 22 can be detached from the inner wall of the transmission gear 20, and the transmission gear 20 can be removed from the spectrophotometer, which facilitates the replacement of the cleaning sponge ring 22. After the cleaning sponge ring 22 is used for a period of time, the cleaning sponge ring 22 can be replaced. The maximum outer diameter of the transmission gear 20 is smaller than the inner diameter of the through hole 10, which is convenient for removing the transmission gear 20, so that the cleaning sponge ring 22 can be replaced. The upper surface of the support block 8 is a smooth concave structure. The cover body 2 and the measurement chamber 3 fit well, which is convenient for forming a dark space in the measurement chamber 3 after the cover body 2 is covered, facilitating measurement. The inner diameter of the cleaning sponge ring 22 is smaller than the outer diameter of the test tube containing the liquid to be measured, which not only facilitates the cleaning of the outer wall of the test tube by the cleaning sponge ring 22, but also facilitates the rotation of the cleaning sponge ring 22 to drive the test tube to rotate.

[0035] Embodiment 2:

[0036] To solve the problem that the conventional spectrophotometer cannot shake the liquid, and thus it is not convenient to uniformly measure the liquid, the following technical solutions are provided. Specifically,

[0037] An installation groove 16 is further provided on the machine body 1, and the installation groove 16 is connected to the detachable cleaning mechanism through a follow-up mixing mechanism.

[0038] The follow-up mixing mechanism includes a rope 5, a guide roller 6, a limiting track groove 9, a shaft column 11, an annular groove 12, a shaft block 13, a tooth plate 14, a rope winding groove 15, a rope winding shaft 17, a pawl ratchet structure 18 and a torsion spring 19. The shaft column 11 and the rope winding shaft 17 are connected to the shaft column 11 and the rope winding shaft 17 by a bearing in the mounting groove 16, and the shaft column 11 and the rope winding shaft 17 are connected by a coaxial bearing. Two sections of rope winding grooves 15 are arranged on the rope winding shaft 17, and each section of the rope winding groove 15 is connected to one end of the corresponding rope 5. A groove is arranged at the position where the shaft column 11 is connected to the rope winding shaft 17, and the rope winding shaft 17 extends into the groove and is connected to the shaft column 11 bearing. The outer side of the portion of the rope winding shaft 17 extending into the groove is connected by a pawl ratchet structure 1 8 is connected to the inner wall of the groove, and the groove is a cylindrical groove structure coaxial with the rope winding shaft 17. The end of the rope winding shaft 17 extending into the groove is also connected to the inner wall of the groove through a torsion spring 19. An annular groove 12 is provided on the shaft column 11, and two shaft blocks 13 are slidably connected in the annular groove 12. The two shaft blocks 13 are respectively connected to the side surfaces of one end of two tooth plates 14, and the other ends of the two tooth plates 14 are both movable to penetrate the interior of the upper support plate 4. The tooth plate 14 is slidably connected in the limiting track groove 9, and the limiting track groove 9 is arranged on both sides of the interior of the upper support plate 4. The interior of the mounting groove 16, the surface of the measuring chamber 3 and the front end of the lower surface of the cover body 2 are all provided with guide rollers 6, and the other end of the rope 5 One end passes through the guide roller 6 on the inside of the installation groove 16 and the surface of the measuring chamber 3 in sequence, and then is connected to the guide roller 6 at the front end of the lower surface of the cover body 2. During the process of opening the cover body 2, the rope 5 is pulled to rotate the rope shaft 17. During the rotation of the rope shaft 17, the torsion spring 19 can store force, and the resistance of the rotation of the pawl ratchet structure 18 and the shaft column 11 can prevent the shaft column 11 from rotating synchronously with the rope shaft 17. When the test tube is fixed on the cleaning sponge ring 22, the cover body 2 is closed, and the elastic force is released by the torsion spring 19 to make the rope shaft 17 rotate in the opposite direction. At the same time, the pawl ratchet structure 18 drives the shaft column 11 to rotate. During the rotation of the shaft column 11, the annular groove 12 and the shaft block 13 can drive the tooth plate 14 to move back and forth. Through the reciprocating movement of the two tooth plates 14, the test tube fixed on the cleaning sponge ring 22 can be driven to rotate back and forth, thereby shaking the liquid in the test tube. In the process of shaking the liquid, bubbles can be prevented from being generated, thereby avoiding the influence of bubbles on the measurement results. The annular groove 12 is inclined to the shaft column 11. Through the inclined setting of the annular groove 12, when the shaft column 11 rotates, the two shaft blocks 13 slidingly connected on the annular groove 12 move back and forth, and the directions of winding the rope 5 on the two rope winding grooves 15 are the same. The two sections of rope 5 are wound in the same way, so that the purpose of synchronously releasing or tightening the two sections of rope 5 is achieved when the rope winding shaft 17 rotates.

[0039] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0040] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate 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 spectrophotometer for uniform measurement, comprising a body (1), a detachable cleaning mechanism and a follow-up mixing mechanism, characterized in that: The body (1) is provided with a measuring chamber (3), and the upper shaft of the measuring chamber (3) is connected to the cover body (2); an upper support plate (4) and a lower support plate (7) are provided in the measuring chamber (3), and the upper support plate (4) is arranged above the lower support plate (7); a support block (8) is connected to the upper surface bearing of the lower support plate (7); a through hole (10) is provided on the upper support plate (4) at a position corresponding to the support block (8); the upper support plate (4) is a hollow structure, and the through hole (10) passes through the upper and lower sides of the upper support plate (4); a detachable cleaning mechanism is provided on the upper support plate (4), and the detachable cleaning mechanism comprises a transmission gear (20), a pinching rod (21), a cleaning sponge ring (22), a connecting ring (23), a connecting The connecting ring (23) is provided with a connecting shaft (24) and a connecting hole (25), the connecting ring (23) is bearing-connected to the through hole (10) at the lower position, and the upper surface of the connecting ring (23) is provided with a connecting shaft (24), the connecting shaft (24) is snap-connected in the connecting hole (25), and the connecting hole (25) is provided on the lower surface of the transmission gear (20), the transmission gear (20) is meshingly connected between the two tooth plates (14), and the upper surface of the transmission gear (20) is provided with a pinching rod (21), the inner side of the transmission gear (20) is installed with a cleaning sponge ring (22) by bonding, and the body (1) is also provided with a mounting groove (16), and the mounting groove (16) is connected to the detachable cleaning mechanism through a follower-type mixing mechanism, and the follower-type mixing mechanism is provided with a cleaning sponge ring (22). The dynamic mixing mechanism comprises a rope (5), a guide roller (6), a limit track groove (9), a shaft column (11), an annular groove (12), a shaft block (13), a tooth plate (14), a rope winding groove (15), a rope winding shaft (17), a ratchet ratchet structure (18) and a torsion spring (19); the shaft column (11) and the rope winding shaft (17) are connected by a bearing in the mounting groove (16); the shaft column (11) and the rope winding shaft (17) are coaxially connected by a bearing; two sections of rope winding grooves (15) are provided on the rope winding shaft (17); each section of the rope winding groove (15) is connected to one end of a corresponding rope (5); a groove is provided at a position where the shaft column (11) and the rope winding shaft (17) are connected; the rope winding shaft (17) extends into the groove and is connected to the shaft column (11) bearing. The outer side of the portion of the rope winding shaft (17) extending into the groove is connected to the inner wall of the groove through a ratchet structure (18), and the groove is a cylindrical groove structure coaxial with the rope winding shaft (17). The end of the rope winding shaft (17) extending into the groove is also connected to the inner wall of the groove through a torsion spring (19). The shaft column (11) is provided with an annular groove (12), and two shaft blocks (13) are slidably connected in the annular groove (12). The two shaft blocks (13) are respectively connected to the side surfaces of one end of two tooth plates (14), and the other ends of the two tooth plates (14) are movably penetrated to the interior of the upper support plate (4). The tooth plate (14) is slidably connected to the limiting track groove (9), and the limiting track groove (9) is provided on both sides of the interior of the upper support plate (4).The interior of the installation groove (16), the surface of the measuring chamber (3) and the front end of the lower surface of the cover body (2) are all provided with guide rollers (6), and the other end of the rope (5) passes through the guide rollers (6) inside the installation groove (16) and on the surface of the measuring chamber (3) in sequence and is then connected to the guide roller (6) at the front end of the lower surface of the cover body (2).

2. A spectrophotometer for uniform measurement according to claim 1, characterized in that: The annular groove (12) is arranged obliquely to the shaft column (11). By the annular groove (12) being arranged obliquely, when the shaft column (11) rotates, two shaft blocks (13) slidably connected to the annular groove (12) reciprocate.

3. A spectrophotometer for uniform measurement according to claim 2, characterized in that: The directions of winding the rope (5) on the two rope winding grooves (15) are the same, and the two rope sections (5) are wound in the same way, so that when the rope winding shaft (17) rotates, the purpose of synchronously releasing or tightening the two rope sections (5) is achieved.

4. A spectrophotometer for uniform measurement according to claim 3, characterized in that: The maximum outer diameter of the transmission gear (20) is smaller than the inner diameter of the through hole (10), so that the transmission gear (20) can be easily removed, thereby replacing the cleaning sponge ring (22).

5. A spectrophotometer for uniform measurement according to claim 4, characterized in that: The upper surface of the support block (8) is a smooth concave structure.

6. A spectrophotometer for uniform measurement according to claim 5, characterized in that: The cover body (2) and the measuring chamber (3) fit together, so that after the cover body (2) is covered, a dark space is formed in the measuring chamber (3), which facilitates measurement.

7. A spectrophotometer for uniform measurement according to claim 6, characterized in that: The inner diameter of the cleaning sponge ring (22) is smaller than the outer diameter of the test tube containing the liquid to be measured, which not only facilitates the cleaning sponge ring (22) to clean the outer wall of the test tube, but also facilitates the rotation of the cleaning sponge ring (22) to drive the test tube to rotate.

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