Photometer

Abstract

The utility model discloses a photometer, and relates to the technical field of optical measuring instruments, the photometer specifically comprises a photometer body and a feeding structure, the feeding structure is clamped at the top of a darkroom of the photometer body, and the feeding structure comprises a sealing cover and a feeding box which are clamped at the top of the darkroom of the photometer body; feeding holes are formed in the top of the sealing cover and the bottom of the feeding box. A conveying belt, a lifting structure and an automatic liquid injection structure are arranged in an inner cavity of the feeding box. The side wall of the conveying belt is evenly and movably connected with connecting rods, and the other ends of the connecting rods are fixedly connected with clamping grooves matched with the cuvettes. According to the photometer, through the arrangement of the liquid injection structure, a standard liquid or a sample to be detected can be automatically injected into the cuvette in the use process of the photometer, automatic liquid injection is achieved, the use convenience of the photometer is improved, and automatic liquid injection can be achieved in the detection process of the photometer, so that the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of optical measuring instruments, in particular to a photometer. Background Art

[0002] A photometer, also known as a spectrometer, is a scientific instrument that decomposes light with complex components into spectral lines. An ultraviolet spectrophotometer is a type of photometer, but when it is used, it is necessary to first put in a cuvette, adjust the transmittance, put in a standard solution, and test the standard solution. After establishing a standard system, the sample can be tested. During this process, the staff needs to frequently open and close the darkroom door and take and put in the cuvette, which reduces the detection efficiency of the sample. To address this problem, in the prior art, an authorized patent with application number CN202223173727.9 discloses a photometer, including a divider body, a detection darkroom is provided in the divider body, a light-shielding shell is provided at one end of the detection darkroom, a motor is provided at the lower end of the light-shielding shell, a support disc is provided in the detection darkroom and the light-shielding shell, the output end of the motor is connected to the support disc, a mounting frame is provided on the support disc, and a socket block and other components are detachably connected on the mounting frame.

[0003] When the above scheme is in use, a motor is used to drive the supporting disc to rotate, so that multiple groups of cuvettes can enter the dark room in sequence. However, when the above scheme is in use, it is still necessary to manually pour the standard solution or sample solution into the cuvette, which is more troublesome. Moreover, the above scheme can only work after all the cuvettes are placed outside, which reduces work efficiency. Based on this, the present application proposes a photometer. Utility Model Content

[0004] The utility model provides a photometer, which solves the problem that the photometer proposed in the background technology needs to manually pour standard solution or sample solution into the cuvette during use, which is troublesome, and the solution can only work after all the cuvettes are placed.

[0005] The utility model provides the following technical solutions: a photometer, comprising a photometer body and a feeding structure, wherein the top of the darkroom of the photometer body is clamped with the feeding structure, the feeding structure comprises a sealing cover clamped with the top of the darkroom of the photometer body and a feeding box, the top of the sealing cover and the bottom of the feeding box are both provided with feeding holes, and a conveyor belt, a lifting structure and an automatic liquid injection structure are provided in the inner cavity of the feeding box; the side wall of the conveyor belt is evenly and movably connected with a connecting rod, and the other end of the connecting rod is fixedly connected with a card slot adapted to a cuvette;

[0006] The lifting structure includes an electric telescopic rod fixedly connected to the top of the inner cavity of the loading box, a first clamping plate fixedly connected to the bottom of the electric telescopic rod, a second clamping plate connected to the first clamping plate through a positioning rod and a spring, an electromagnet 1 fixed to the first clamping plate, and an electromagnet 2 fixed to the second clamping plate;

[0007] The automatic liquid injection structure includes two splash-proof blocks fixedly connected to the top of the inner cavity of the loading box, and a liquid pump 1 and a liquid pump 2 clamped to the top of the inner cavity of the loading box. The liquid inlet end of the liquid pump 1 is fixed with a liquid inlet tube 1, and the other end of the liquid inlet tube 1 extends into the inner cavity of the standard liquid bottle or the sample bottle. The liquid inlet end of the liquid pump 2 is fixedly connected with a liquid inlet tube 2, and the other end of the liquid inlet tube 2 extends into the inner cavity of the sample bottle or the standard liquid bottle. A liquid outlet tube is placed in the inner cavity of the splash-proof block, and the top end of the liquid outlet tube is connected to the liquid outlet end of the liquid pump 1 or the liquid outlet end of the liquid pump 2.

[0008] Preferably, the first clamp is L-shaped, the horizontal end of the first clamp is fixedly connected to the bottom of the electric telescopic rod, the horizontal end of the first clamp is adapted to the top of the cuvette, and the vertical end of the first clamp is fixedly connected to a positioning rod and a spring.

[0009] Preferably, the second clamping plate is movably connected to the positioning rod, and the second clamping plate is fixedly connected to the spring.

[0010] Preferably, the splash block is adapted to the cuvette, a through hole is provided in the middle of the splash block, the inner diameter of the through hole is adapted to the outer diameter of the liquid outlet pipe, and the bottom of the liquid outlet pipe is flush with the bottom of the splash block.

[0011] Preferably, support rods are fixed at both ends of the inner cavity of the loading box, the top of one support rod is movably connected to a synchronous wheel, the top of the other support rod is fixedly connected to a rotating motor, the end of the output shaft of the rotating motor is fixedly connected to another synchronous wheel, and the two synchronous wheels are connected through a conveyor belt transmission.

[0012] Preferably, an isolation pad is fixed to the inner sides of both the first clamping plate and the second clamping plate.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The photometer, through the setting of the feeding structure, the cuvette can be transported by the conveyor belt, so that different cuvettes can be moved to the top of the feeding hole in turn, and the liquid after detection can be transported away by the conveyor belt, thereby realizing continuous loading and detection of the photometer and improving the working efficiency of the photometer.

[0015] 2. The photometer, through the setting of the liquid injection structure, can automatically inject the standard solution or the sample to be tested into the cuvette during the use of the photometer, realizing automatic liquid injection, thereby improving the convenience of using the photometer. In addition, the photometer can realize automatic liquid injection during the detection process, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front view of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the interior of the loading box of the utility model structure;

[0018] Figure 3 This is a schematic diagram of the connection between the sealing cover and the photometer body of the utility model;

[0019] Figure 4 This is a schematic diagram of the splash-proof block structure of the utility model;

[0020] Figure 5 This is a schematic diagram of the lifting structure of the utility model;

[0021] Figure 6 The utility model structure Figure 5 Schematic diagram on the right.

[0022] In the figure: 1. photometer body; 2. feeding hole; 3. feeding box; 4. sealing cover; 5. through hole; 6. support rod; 7. rotating motor; 8. synchronous wheel; 9. conveyor belt; 10. liquid pump 1; 11. splash block; 12. liquid inlet pipe; 13. liquid pump 2; 14. standard liquid bottle; 15. electric telescopic rod; 16. liquid inlet pipe 2; 17. sample bottle; 18. connecting rod; 19. slot; 20. first clamping plate; 21. electromagnet 1; 22. positioning rod; 23. spring; 24. second clamping plate; 25. electromagnet 2. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] The utility model provides a photometer, comprising a photometer body 1 and a feeding structure, wherein the top of a dark chamber of the photometer body 1 is clamped with the feeding structure, the feeding structure comprises a sealing cover 4 and a feeding box 3 which are clamped with the top of the dark chamber of the photometer body 1, the top of the sealing cover 4 and the bottom of the feeding box 3 are both provided with a feeding hole 2, through the provision of the feeding hole 2, the inner cavity of the feeding box 3 is in a connected state with the inner cavity of the dark chamber, so that the colorimetric dish placed in the inner cavity of the feeding box 3 is conveniently moved into the inner cavity of the dark chamber.

[0025] The loading box 3 includes a bottom plate and a box cover, which are snap-fitted together. A conveyor belt 9, a lifting structure and an automatic liquid injection structure are provided in the inner cavity of the loading box 3. Support rods 6 are fixed at both ends of the inner cavity of the loading box 3. A synchronous wheel 8 is movably connected to the top of one support rod 6, and a rotating motor 7 is fixedly connected to the top of the other support rod 6. The end of the output shaft of the rotating motor 7 is fixedly connected to another synchronous wheel 8 through a reducer, and the two synchronous wheels 8 are connected by transmission through a conveyor belt 9. Through the setting of the rotating motor 7, the rotation of the rotating motor 7 can drive the synchronous wheel 8 fixedly connected thereto to rotate, and the synchronous wheel 8 drives the conveyor belt 9 to rotate.

[0026] The side wall of the conveyor belt 9 is evenly and movably connected with a connecting rod 18, and the other end of the connecting rod 18 is fixedly connected with a slot 19 adapted to the cuvette. Through the setting of the slot 19, the cuvette can be conveyed by the conveyor belt 9, so that different cuvettes can be moved to the top of the loading hole 2 in sequence, and the liquid after detection can be conveyed away by the conveyor belt, realizing continuous loading and detection of the photometer, and improving the working efficiency of the photometer.

[0027] The above-mentioned automatic liquid injection structure includes two splash-proof blocks 11 fixedly connected to the top of the inner cavity of the loading box 3, and a liquid pump 10 and a liquid pump 2 13 clamped to the top of the inner cavity of the loading box 3. The distance between the two splash-proof blocks 11 is the same as the distance between two adjacent card slots 19. When the loading structure is in the unloading process, the cuvette can move the bottom of the splash-proof block 11, and the top of the cuvette contacts the bottom of the splash-proof block 11, which is convenient for filling the cuvette with standard solution or sample solution.

[0028] The liquid inlet end of the liquid pump 10 is fixed with a liquid inlet pipe 12, and the other end of the liquid inlet pipe 12 extends to the inner cavity of the standard liquid bottle 14 or the sample bottle 17. The liquid inlet end of the liquid pump 2 13 is fixedly connected with a liquid inlet pipe 2 16, and the other end of the liquid inlet pipe 2 16 extends to the inner cavity of the sample bottle 17 or the standard liquid bottle 14. A liquid outlet pipe is placed in the inner cavity of the splash block 11, and the top of the liquid outlet pipe is connected to the liquid outlet end of the liquid pump 10 or the liquid outlet end of the liquid pump 2 13. The splash block 11 is adapted to the cuvette, and a through hole 5 is provided in the middle of the splash block 11. The inner diameter of the through hole 5 is adapted to the outer diameter of the liquid outlet pipe, and the bottom of the liquid outlet pipe is flush with the bottom of the splash block 11. Through the provision of the splash block 11, during the liquid injection process, the splash block 11 can shield the cuvette to prevent the liquid in the cuvette from splashing out.

[0029] From the above description of the liquid injection structure, it can be seen that during the use of the photometer, the standard solution or the sample to be tested can be automatically injected into the cuvette to achieve automatic liquid injection, thereby improving the convenience of using the photometer. In addition, the photometer can achieve automatic liquid injection during the detection process to improve work efficiency.

[0030] The above-mentioned lifting structure includes an electric telescopic rod 15 fixedly connected to the top of the inner cavity of the loading box 3, a first clamping plate 20 fixedly connected to the bottom of the electric telescopic rod 15, and a second clamping plate 24 connected to the first clamping plate 20 through a positioning rod 22 and a spring 23. The first clamping plate 20 is L-shaped, and the horizontal end of the first clamping plate 20 is fixedly connected to the bottom of the electric telescopic rod 15. The horizontal end of the first clamping plate 20 is adapted to the top of the cuvette. Under the action of the electric telescopic rod 15, the bottom of the horizontal end of the first clamping plate 20 can contact the top of the cuvette to seal the top of the cuvette to prevent the liquid in the cuvette from spilling out during the movement of the cuvette. The vertical end of the first clamping plate 20 is fixedly connected with the positioning rod 22 and the spring 23, the second clamping plate 24 is movably connected to the positioning rod 22, and the second clamping plate 24 is fixedly connected to the spring 23. Under the action of external force, the position of the second clamping plate 24 and the vertical end of the first clamping plate 20 can be changed. The coordinated use of the first clamping plate 20 and the second clamping plate 24 can achieve the clamping of the cuvette.

[0031] Isolation pads are fixed on the inner sides of the first clamping plate 20 and the second clamping plate 24. The material of the isolation pads can be rubber. The isolation pads can reduce the influence of the first clamping plate 20 and the second clamping plate 24 on the colorimetric dish, making it easier to clamp the colorimetric dish.

[0032] An electromagnet 21 is fixed to the vertical end of the first clamping plate 20, and an electromagnet 25 is fixed to the side of the second clamping plate 24 close to the electromagnet 21. When currents in the same direction are passed through both the electromagnet 21 and the electromagnet 25, the electromagnet 21 and the electromagnet 25 are in a state of magnetic repulsion. The repulsive force between the two can offset the pulling force of the spring 23 on the second clamping plate 24, so that the second clamping plate 24 can be moved away from the first clamping plate 20, and the cuvette can be released, which is convenient for the lifting structure to be separated from the cuvette in the dark room.

[0033] In some embodiments of the present application, both the first pump 10 and the second pump 13 can be digital peristaltic pumps with model BF-H / YZ; both the first electromagnet 21 and the second electromagnet 25 can be HTO-0415LAB. The model of the photometer body 1 can be 721G.

[0034] The electrical components involved in this application are all prior art, and technicians in this field are familiar with their connection methods. Through these technicians, all the electrical components in this application are connected to their compatible power supplies through wires, and according to the actual situation, a suitable controller is selected to meet the control requirements. The specific connection and control sequence are described below. The electrical connection is completed in a sequential working order, and the detailed connection means are well known in the art. The following mainly introduces the working principle and process, and no further explanation of the electrical control is given.

[0035] To sum up: when the photometer is used, the user takes off the box cover, puts the cuvette in the card slot 19, and then covers the box cover. When the rotating motor 7 works, it drives the synchronous wheel 8 fixed thereto to rotate, and the synchronous wheel 8 drives the conveyor belt 9 to rotate. The conveyor belt 9 drives the cuvette to move through the connecting rod 18 and the card slot 19. When the empty cuvette moves to the top of the loading hole 2, the electromagnet 1 21 and the electromagnet 25 are in a powered-on state, so that the second clamping plate 24 is away from the vertical end of the first clamping plate 20, and the electric telescopic rod 15 is extended until the top of the cuvette is located between the first clamping plate 20 and the second clamping plate 24. The electromagnet 1 21 and the electromagnet 25 are in a powered-off state. Under the action of the rebound force of the spring 23, the second clamping plate 24 is tightly fitted with the cuvette, and the first clamping plate 20 and The second clamping plate 24 is used in cooperation to clamp the contrast colorimetric cell, the electric telescopic rod 15 contracts, and the lifting structure drives the colorimetric cell to move upward until the colorimetric cell is separated from the card slot 19, the rotating motor 7 rotates, and the rotating motor 7 drives the card slot 19 located above the loading hole 2 to move until the card slot 19 moves to the side of the lifting structure, the electric telescopic rod 15 extends, and the electric telescopic rod 15 drives the colorimetric cell to move downward until the colorimetric cell is placed on the colorimetric cell rack in the dark room, and the lifting structure releases the clamping of the contrast colorimetric cell and resets it, the photometer body 1 can adjust the transmittance, and in the process of the lifting structure driving the colorimetric cell to move upward, the liquid pump 10 and the liquid pump 2 13 can work, and the standard solution or sample solution is put into the colorimetric cell, so as to facilitate the establishment of a standard system using the standard solution and facilitate the detection of the sample solution.

[0036] The standard parts used in the utility model can be purchased from the market, and the special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art and will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and modifications can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A photometer, comprising a photometer body (1) and a feeding structure, characterized in that: A loading structure is clamped on the top of the darkroom of the photometer body (1), and the loading structure comprises a sealing cover (4) and a loading box (3) clamped on the top of the darkroom of the photometer body (1), the top of the sealing cover (4) and the bottom of the loading box (3) are both provided with loading holes (2), and a conveyor belt (9), a lifting structure and an automatic liquid injection structure are provided in the inner cavity of the loading box (3); the side wall of the conveyor belt (9) is evenly and movably connected with a connecting rod (18), and the other end of the connecting rod (18) is fixedly connected with a slot (19) adapted to the cuvette; The lifting structure comprises an electric telescopic rod (15) fixedly connected to the top of the inner cavity of the loading box (3), a first clamping plate (20) fixedly connected to the bottom of the electric telescopic rod (15), a second clamping plate (24) connected to the first clamping plate (20) via a positioning rod (22) and a spring (23), an electromagnet 1 (21) fixed to the first clamping plate (20), and an electromagnet 2 (25) fixed to the second clamping plate (24); The automatic liquid injection structure comprises two splash-proof blocks (11) fixedly connected to the top of the inner cavity of the loading box (3), a first liquid pump (10) and a second liquid pump (13) clamped to the top of the inner cavity of the loading box (3), a first liquid inlet pipe (12) fixedly connected to the liquid inlet end of the first liquid pump (10), the other end of the first liquid inlet pipe (12) extending into the inner cavity of the standard liquid bottle (14) or the sample bottle (17), a second liquid inlet pipe (16) fixedly connected to the liquid inlet end of the second liquid pump (13), the other end of the second liquid inlet pipe (16) extending into the inner cavity of the sample bottle (17) or the standard liquid bottle (14), a liquid outlet pipe is placed in the inner cavity of the splash-proof block (11), the top end of the liquid outlet pipe is connected to the liquid outlet end of the first liquid pump (10) or the liquid outlet end of the second liquid pump (13).

2. A photometer according to claim 1, characterized in that: The first clamping plate (20) is L-shaped, the horizontal end of the first clamping plate (20) is fixedly connected to the bottom of the electric telescopic rod (15), the horizontal end of the first clamping plate (20) is adapted to the top of the cuvette, and the vertical end of the first clamping plate (20) is fixedly connected to a positioning rod (22) and a spring (23).

3. A photometer according to claim 1, characterized in that: The second clamping plate (24) is movably connected to the positioning rod (22), and the second clamping plate (24) is fixedly connected to the spring (23).

4. A photometer according to claim 1, characterized in that: The splash block (11) is matched with the cuvette, a through hole (5) is provided in the middle of the splash block (11), the inner diameter of the through hole (5) is matched with the outer diameter of the liquid outlet pipe, and the bottom of the liquid outlet pipe is flush with the bottom of the splash block (11).

5. A photometer according to claim 1, characterized in that: Support rods (6) are fixed at both ends of the inner cavity of the loading box (3); the top of one support rod (6) is movably connected to a synchronous wheel (8); the top of the other support rod (6) is fixedly connected to a rotating motor (7); the end of the output shaft of the rotating motor (7) is fixedly connected to another synchronous wheel (8); and the two synchronous wheels (8) are connected by transmission via a conveyor belt (9).

6. A photometer according to claim 1, characterized in that: Isolation pads are fixed on the inner sides of both the first clamping plate (20) and the second clamping plate (24).

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