Azotometer for food detection

Abstract

The utility model discloses an azotometer for food detection, and relates to the technical field of food detection equipment. The azotometer for food detection comprises a base, a bottom plate is placed at the top of the base, two supporting columns are fixedly mounted at the top of the bottom plate, guide grooves are formed in the two supporting columns, a lifting plate is slidably mounted in the two guide grooves, an azotometer body is fixedly mounted at the top of the lifting plate, and a sleeve is fixedly mounted at the top of the bottom plate; the clamping structure is mounted on the hollow seat, and the shaking structure is mounted on the base and the bottom plate. According to the azotometer for food detection, through the clamping structure, a container of any size can be subjected to center clamping and fixing, automatic positioning of the container is achieved, the practicability of the azotometer is improved, through the shaking structure, the bottom plate, the sleeve, the hollow base and the container can be shaken left and right in a reciprocating mode, and when a reagent in the container is adjusted, the operation is convenient. Reagents and samples can be driven to be uniformly mixed, detection errors are reduced, and detection precision is improved.

Description

Technical Field

[0001] This utility model relates to the field of food testing equipment technology, and in particular to a nitrogen analyzer for food testing. Background Technology

[0002] A nitrogen analyzer is a chemical analytical instrument used to determine the nitrogen content in samples. It is widely used in food, agriculture, environmental science, and other fields. The nitrogen analyzer primarily uses the Kjeldahl method to determine the total nitrogen content in a sample, and then calculates the protein content.

[0003] Currently, nitrogen analyzers on the market can only fix the container that comes with the analyzer during use, and cannot install containers of other sizes on the analyzer, which has certain limitations. Secondly, during the testing of food samples, the test reagents newly added to the container cannot be mixed evenly with the sample, which will affect the accuracy of the test. Utility Model Content

[0004] The purpose of this invention is to provide a nitrogen analyzer for food testing, so as to solve the problems and defects mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a nitrogen analyzer for food testing, comprising a base, a bottom plate placed on top of the base, two support columns fixedly installed on the top of the bottom plate, each support column having a guide groove, a lifting plate slidably installed within the two guide grooves, a nitrogen analyzer body fixedly installed on top of the lifting plate, a sleeve fixedly installed on top of the bottom plate, a hollow seat slidably installed on the inner side of the sleeve, a spring fixedly installed on top of the bottom plate, and the top of the spring fixedly installed to the bottom outer wall of the hollow seat, the top of the hollow seat being placed... The instrument contains a container, and a detection end is located at the bottom of the nitrogen analyzer body. The detection end passes through the lifting plate and extends to the top of the container. A sealing plug is fitted on the outer wall of the detection end and is fixedly installed at the bottom of the lifting plate. The instrument also includes a clamping structure installed on a hollow base to clamp and fix the container, a wobbling structure installed on the base and bottom plate to wobble the container left and right, and a lifting structure installed on the bottom plate and support column to drive the lifting plate and the nitrogen analyzer body to move up and down through lifting contact.

[0006] Preferably, the clamping structure includes a cross guide frame, curved clamping rods, a movable plate, and an electric telescopic rod. The cross guide frame is fixedly installed on the inner wall of the hollow base. Four curved clamping rods are slidably installed on the outer wall of the cross guide frame and arranged in a circular array. The movable plate is slidably installed on the inner side of the hollow base. The electric telescopic rod is fixedly installed on the bottom inner side of the hollow base. The free end of the electric telescopic rod is fixedly installed on the bottom of the movable plate. The movable plate has an opening, and the curved clamping rods are movably installed in the opening. This allows for the central clamping and fixing of containers of any size, achieving automatic container positioning and improving the practicality of the nitrogen analyzer.

[0007] Preferably, the shaking structure includes a turntable, a fixed shaft, a push-pull rod, and a second motor. The second motor is fixedly installed at the bottom of the base, and the output shaft of the second motor passes through the base and is fixedly installed at the bottom of the turntable. The fixed shaft is fixedly installed at the top of the turntable, and the push-pull rod is rotatably installed on the outer wall of the fixed shaft. One end of the push-pull rod is hinged to one side of the base plate, which can make the base plate, sleeve, hollow seat, and container swing back and forth. When adjusting the reagent inside the container, it can drive the reagent and sample to mix evenly, reduce detection error, and improve detection accuracy.

[0008] Preferably, the lifting structure includes a lead screw, a first motor, synchronous pulleys, and a synchronous belt. There are two lead screws, each rotatably mounted in a guide groove. One end of the lead screw extends to the inner side of the base plate. The first motor is fixedly mounted on the top of a support column, and the output shaft of the first motor is fixedly mounted to one end of the lead screw. There are two synchronous pulleys, each fixedly mounted to one end of the two lead screws. The synchronous belt is sleeved on the two synchronous pulleys and meshes with them, which can drive the sealing plug to descend, allowing the sealing plug to seal the container.

[0009] Preferably, the base has two sliding grooves, and two sliders are slidably installed in the sliding grooves, with the bottom of the sliders contacting the bottom of the base plate.

[0010] Preferably, the top of the hollow base has four openings arranged in a circular array, and one end of each of the four bent clamping rods passes through the openings and extends to the top of the hollow base.

[0011] Preferably, the detection end includes a detection module and a feeding tube.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This nitrogen analyzer for food testing features a clamping structure that allows for the central clamping and fixing of containers of any size, enabling automatic container positioning and improving the analyzer's practicality. A shaking mechanism allows for the reciprocating left-right shaking of the base plate, sleeve, hollow seat, and container, ensuring uniform mixing of reagents and samples during reagent adjustments, thus reducing detection errors and improving accuracy. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 for Figure 1 A schematic diagram of the structure on the other side;

[0017] Figure 3 This is a cross-sectional view of the base plate and support column of this utility model;

[0018] Figure 4 This is a cross-sectional view of the sleeve and hollow seat of this utility model.

[0019] Reference numerals: 1. Base; 2. Base plate; 3. Support column; 4. Lifting plate; 5. Nitrogen analyzer body; 6. Sleeve; 7. Hollow seat; 8. Spring; 9. Container; 10. Cross guide frame; 11. Bending clamp rod; 12. Movable plate; 13. Electric telescopic rod; 14. Lead screw; 15. First motor; 16. Synchronous pulley; 17. Synchronous belt; 18. Turntable; 19. Fixed shaft; 20. Push-pull rod; 21. Second motor; 22. Slider; 23. Sealing plug; 24. Detection end. Detailed Implementation

[0020] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0021] Please see Figure 1-4This utility model provides a technical solution: a nitrogen analyzer for food testing, including a base 1, a base plate 2 placed on top of the base 1, two support columns 3 fixedly installed on the top of the base plate 2, each support column 3 having a guide groove, a lifting plate 4 slidably installed in the two guide grooves, a nitrogen analyzer body 5 fixedly installed on top of the lifting plate 4, a sleeve 6 fixedly installed on the top of the base plate 2, a hollow seat 7 slidably installed on the inner side of the sleeve 6, a spring 8 fixedly installed on the top of the base plate 2, and the top of the spring 8 fixedly installed to the bottom outer wall of the hollow seat 7, a container 9 placed on top of the hollow seat 7. The nitrogen analyzer body 5 has a detection end 24 at its bottom. The detection end 24 passes through the lifting plate 4 and extends to the top of the container 9. The outer wall of the detection end 24 is fitted with a sealing plug 23. The sealing plug 23 is fixedly installed at the bottom of the lifting plate 4. It also includes a clamping structure installed on the hollow base 7, which is used to clamp and fix the container 9. A shaking structure installed on the base 1 and the bottom plate 2 is used to shake the container 9 left and right. A lifting structure installed on the bottom plate 2 and the support column 3 is used to drive the lifting plate 4 and the nitrogen analyzer body 5 to move up and down through lifting contact.

[0022] Furthermore, the clamping structure includes a cross guide frame 10, curved clamping rods 11, a movable plate 12, and an electric telescopic rod 13. The cross guide frame 10 is fixedly installed on the inner wall of the hollow seat 7. Four curved clamping rods 11 are slidably installed on the outer wall of the cross guide frame 10, and the four curved clamping rods 11 are arranged in a circular array. The movable plate 12 is slidably installed on the inner side of the hollow seat 7. The electric telescopic rod 13 is fixedly installed on the bottom inner side of the hollow seat 7. The free end of the electric telescopic rod 13 is fixedly installed on the bottom of the movable plate 12. The movable plate 12 has an opening, and the curved clamping rods 11 are movably installed in the opening. When the electric telescopic rod 13 is activated, the free end of the electric telescopic rod 13 drives the movable plate 12 to descend. The descent of the movable plate 12 drives the four curved clamping rods 11 to move, so that the four curved clamping rods 11 clamp and fix the container 9 in the center, realizing automatic positioning of the container 9 and improving the practicality of the nitrogen analyzer.

[0023] Furthermore, the shaking structure includes a turntable 18, a fixed shaft 19, a push-pull rod 20, and a second motor 21. The second motor 21 is fixedly installed at the bottom of the base 1, and its output shaft passes through the base 1 and is fixedly installed at the bottom of the turntable 18. The fixed shaft 19 is fixedly installed at the top of the turntable 18. The push-pull rod 20 is rotatably installed on the outer wall of the fixed shaft 19, and one end of the push-pull rod 20 is hinged to one side of the base plate 2. When the second motor 21 is started, its output shaft drives the turntable 18 and the fixed shaft 19 to rotate. The rotation of the fixed shaft 19 drives the other end of the push-pull rod 20 to rotate centrifugally, thereby causing one end of the push-pull rod 20, the base plate 2, the sleeve 6, the hollow seat 7, and the container 9 to shake left and right. When adjusting the reagent inside the container 9, it can drive the reagent and the sample to mix evenly, reduce detection errors, and improve detection accuracy.

[0024] Furthermore, the lifting structure includes a lead screw 14, a first motor 15, synchronous pulleys 16, and a synchronous belt 17. Two lead screws 14 are rotatably mounted in two guide slots, with one end extending to the inner side of the base plate 2. The first motor 15 is fixedly mounted on the top of a support column 3, and its output shaft is fixedly mounted to one end of the lead screw 14. Two synchronous pulleys 16 are fixedly mounted to one end of two lead screws 14. The synchronous belt 17 is sleeved on the two synchronous pulleys 16, and the synchronous belt 17 is connected to the two synchronous pulleys 16. The six-phase meshing can drive the sealing plug 23 to descend, start the first motor 15, and the output shaft of the first motor 15 drives the lead screw 14 and the synchronous pulley 16 to rotate. The synchronous pulley 16 drives another synchronous pulley 16 and the lead screw 14 to rotate through the synchronous belt 17. The rotation of the two lead screws 14 drives the lifting plate 4, the nitrogen analyzer body 5, the sealing plug 23, and the detection end 24 to descend, so that the sealing plug 23 can cover the opening of the container 9, seal the container 9, and extend the detection end 24 to the inside of the container 9.

[0025] Furthermore, the base 1 has two sliding grooves, and two sliders 22 are slidably installed in the sliding grooves, with the bottom of the sliders 22 in contact with the bottom of the base plate 2.

[0026] Furthermore, the top of the hollow base 7 has four openings arranged in a circular array, and one end of each of the four bent clamp rods 11 passes through the openings and extends to the top of the hollow base 7.

[0027] Furthermore, the detection end 24 includes a detection module and a feeding tube.

[0028] Working principle: The sample is placed inside container 9. The electric telescopic rod 13 is activated. The free end of the electric telescopic rod 13 drives the movable plate 12 to descend. The descent of the movable plate 12 drives the four curved clamping rods 11 to move, thus clamping and fixing the container 9. Then, the first motor 15 is activated. The output shaft of the first motor 15 drives the lead screw 14 and the synchronous pulley 16 to rotate. The synchronous pulley 16 drives another synchronous pulley 16 and the lead screw 14 to rotate via the synchronous belt 17. The rotation of the two lead screws 14 drives the lifting plate 4, the nitrogen analyzer body 5, the sealing plug 23, and the detection end 24 to descend, causing the sealing plug 23 to move downwards. 3 can cover the opening of container 9 and extend the detection end 24 to the inside of container 9. By starting the nitrogen analyzer body 5, the nitrogen analyzer body 5 can detect the sample in container 9 and obtain the content of ammonia nitrogen, protein nitrogen and other substances in the sample. By starting the second motor 21, the output shaft of the second motor 21 drives the turntable 18 and the fixed shaft 19 to rotate. The rotation of the fixed shaft 19 drives the other end of the push-pull rod 20 to rotate centrifugally, thereby causing one end of the push-pull rod 20, the bottom plate 2, the sleeve 6, the hollow seat 7 and the container 9 to sway left and right. When adjusting the reagent inside container 9, it can drive the reagent and the sample to mix evenly.

[0029] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A nitrogen analyzer for food testing, comprising a base (1), a base plate (2) placed on top of the base (1), two support columns (3) fixedly installed on the top of the base plate (2), each support column (3) having a guide groove, a lifting plate (4) slidably installed in the two guide grooves, a nitrogen analyzer body (5) fixedly installed on top of the lifting plate (4), a sleeve (6) fixedly installed on top of the base plate (2), a hollow seat (7) slidably installed on the inner side of the sleeve (6), and the base plate (2) A spring (8) is fixedly installed on the top of the hollow base (7), and the top of the spring (8) is fixedly installed on the bottom outer wall of the hollow base (7). A container (9) is placed on the top of the hollow base (7). A detection end (24) is provided at the bottom of the nitrogen analyzer body (5). The detection end (24) passes through the lifting plate (4) and extends to the top of the container (9). A sealing plug (23) is sleeved on the outer wall of the detection end (24). The sealing plug (23) is fixedly installed at the bottom of the lifting plate (4). The characteristic of this invention is that... Also includes: The clamping structure installed on the hollow base (7) is used to clamp and fix the container (9); The wobbling structure installed on the base (1) and the bottom plate (2) is used to wobble the container (9) left and right. The lifting structure installed on the base plate (2) and the support column (3) is used to drive the lifting plate (4) and the nitrogen analyzer body (5) to move up and down through lifting contact.

2. The nitrogen analyzer for food testing according to claim 1, characterized in that: The clamping structure includes a cross guide frame (10), a bent clamp rod (11), a movable plate (12), and an electric telescopic rod (13). The cross guide frame (10) is fixedly installed on the inner wall of the hollow seat (7). There are four bent clamp rods (11), all of which are slidably installed on the outer wall of the cross guide frame (10). The four bent clamp rods (11) are arranged in a circular array. The movable plate (12) is slidably installed on the inner side of the hollow seat (7). The electric telescopic rod (13) is fixedly installed on the bottom inner side of the hollow seat (7). The free end of the electric telescopic rod (13) is fixedly installed on the bottom of the movable plate (12). The movable plate (12) has an opening for movement, and the bent clamp rod (11) is movably installed in the opening.

3. A nitrogen analyzer for food testing according to claim 2, characterized in that: The swaying structure includes a turntable (18), a fixed shaft (19), a push-pull rod (20), and a second motor (21). The second motor (21) is fixedly installed at the bottom of the base (1). The output shaft of the second motor (21) passes through the base (1) and is fixedly installed at the bottom of the turntable (18). The fixed shaft (19) is fixedly installed at the top of the turntable (18). The push-pull rod (20) is rotatably installed on the outer wall of the fixed shaft (19), and one end of the push-pull rod (20) is hinged to one side of the base plate (2).

4. A nitrogen analyzer for food testing according to claim 3, characterized in that: The lifting structure includes a lead screw (14), a first motor (15), a synchronous pulley (16), and a synchronous belt (17). There are two lead screws (14) that are rotatably installed in two guide slots. One end of the lead screw (14) extends to the inner side of the base plate (2). The first motor (15) is fixedly installed on the top of a support column (3). The output shaft of the first motor (15) is fixedly installed to one end of the lead screw (14). There are two synchronous pulleys (16) that are fixedly installed to one end of the two lead screws (14). The synchronous belt (17) is sleeved on the two synchronous pulleys (16) and meshes with the two synchronous pulleys (16).

5. A nitrogen analyzer for food testing according to claim 4, characterized in that: The base (1) has two sliding grooves, and two sliders (22) are slidably installed in the sliding grooves. The bottom of the sliders (22) is in contact with the bottom of the base plate (2).

6. A nitrogen analyzer for food testing according to claim 5, characterized in that: The top of the hollow seat (7) has four openings arranged in a circular array. One end of each of the four bent clamp rods (11) passes through the openings and extends to the top of the hollow seat (7).

7. A nitrogen analyzer for food testing according to claim 6, characterized in that: The detection end (24) includes a detection module and a feeding tube.

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