Titration device for food inspection and analysis

Abstract

The utility model relates to the technical field of food inspection. The food inspection and analysis titration device comprises a supporting structure, and the supporting structure comprises a supporting base and an adjusting valve; the vibration structure comprises four groups of spring seats and a vibration disc, and the lower ends of the four groups of spring seats are fixedly connected to the upper surface of the supporting base. After the motor is started, the output end of the motor can drive the connecting disc and the connecting column to rotate, and due to the fact that the circle center of the connecting column and the circle center of the oscillation disc have certain deviation, the connecting column can drive the oscillation disc to shake in a small range when rotating with the output end of the motor as the circle center. By arranging four groups of spring seats, the shaking stability of the shaking disc can be kept, the sample in the conical test bottle can be automatically shaken, and the working intensity of experimenters can be reduced as much as possible, so that the sufficiency of liquid reaction can be ensured to a greater extent.

Description

Technical Field

[0001] This utility model relates to the field of food inspection technology; more specifically, it relates to a food inspection and analysis titration device. Background Technology

[0002] Titration analysis is a commonly used quantitative analysis method in food inspection. It is mainly used to determine the concentration or content of certain components in food. Titration analysis involves adding a reagent (titrant) of known concentration dropwise to the sample to be tested until the reaction is complete (the endpoint is reached). The concentration of the analyte in the sample is determined by calculating the amount of titrant consumed.

[0003] Currently, existing food testing and analysis titration devices suffer from several drawbacks. During titration experiments, the testing personnel use clamps to fix the burette to the titration stage, one hand shakes the conical flask to promote the reaction, and the other hand controls the dripping speed of the liquid in the burette. However, the manual shaking motion may not be regular, resulting in fluctuations. Furthermore, after repeated experiments, the testing personnel's hands may become fatigued, leading to a reduction in the amplitude of hand shaking. This could affect the completeness of the liquid reaction and increase the fatigue of medical personnel. Therefore, there is an urgent need for a food testing and analysis titration device to solve these problems. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a food testing and analysis titration device to solve the problems existing in the background art.

[0005] This utility model provides the following technical solution: a food testing and analysis titration device, comprising:

[0006] A support structure, the support structure including a support base and a regulating valve;

[0007] An oscillating structure is provided, comprising a spring seat and an oscillating disk, wherein there are four sets of spring seats, and the lower ends of the four sets of spring seats are all fixedly connected to the upper surface of the support base.

[0008] The fixed structure includes a hinge rod, a fixed plate, a hinge seat, a fixed pin, and a conical test bottle. The lower end of the hinge rod is fixedly connected to the upper surface of the oscillating disk, and the lower surface of the conical test bottle is attached to the upper surface of the oscillating disk.

[0009] Preferably, a support rod is fixedly connected to the upper surface of the support base, and a fixing seat is fixedly connected to the outer surface of the support rod. A butterfly clamp is fixedly connected to one end of the fixing seat. The butterfly clamp holds a burette inside. The regulating valve is connected to the lower end of the burette. The butterfly clamp can clamp and fix the burette, and the height of the burette can be adjusted when it is fixed. The regulating valve can adjust the flow rate of the titrant inside the burette.

[0010] Preferably, the four corners of the lower surface of the oscillating disk are fixedly connected to the upper ends of the four sets of spring seats respectively. A motor is installed on the upper surface of the support base, and the position of the motor output end corresponds to the position of the center of the oscillating disk. The arrangement of the four sets of spring seats allows the oscillating disk to undergo a certain displacement and provides a certain support for the oscillating disk, thereby making the oscillating disk as stable as possible during use.

[0011] Preferably, the output end of the motor is fixedly connected to a connecting plate, and the upper surface of one end of the connecting plate is fixedly connected to a connecting column. The upper end of the connecting column is fixedly connected to the lower surface of the oscillating disk. An external power supply can provide power to the motor. After the motor starts, its output end can drive the connecting plate and the connecting column to rotate. Since there is a certain offset between the center of the connecting column and the center of the oscillating disk, the connecting column can drive the oscillating disk to sway slightly when it rotates around the output end of the motor.

[0012] Preferably, a first clamping ring is fixedly connected to the outer surface of the hinge rod, and a fixing plate is fixedly connected to the outer surface of one end of the motor. A hinge seat is hinged to the outer surface of the hinge rod, and a second clamping ring is fixedly connected to the outer surface of the hinge seat. A connecting seat is fixedly connected to the outer surface of one end of the second clamping ring, and the outer surfaces of both ends of the hinge seat can fit together with the outer surfaces of both ends of the first clamping ring. The hinge seat can rotate on the outer surface of the hinge rod, and when it rotates, it will drive the second clamping ring and the connecting seat to rotate synchronously.

[0013] Preferably, a connecting plate is inserted into the interior of one side surface of the connecting seat, and a fixing pin is fixedly connected to one end of the connecting plate. The fixing pin is inserted into the interior of the lower end of the connecting plate, and the lower end of the fixing pin is inserted into the interior of the fixing plate. A compression spring is fixedly connected to the upper end of the fixing pin, and the upper end of the compression spring abuts against the upper surface of the interior of the fixing plate. The outer surface of the lower end of the conical test bottle is in contact with the interior surfaces of the opposite side of the first clamping ring and the second clamping ring. Pulling the connecting plate can cause the fixing pin to move inside the lower end of the connecting seat, and abut against the compression spring to retract, and cause the lower end of the fixing pin to disengage from the interior of the fixing plate.

[0014] The technical effects and advantages of this utility model are as follows: After the motor is started, its output end can drive the connecting plate and the connecting column to rotate. Since there is a certain offset between the center of the connecting column and the center of the oscillating plate, the oscillating plate can be driven to shake slightly when the connecting column rotates with the output end of the motor as the center. Furthermore, the stability of the oscillating plate can be maintained by the setting of four sets of spring seats. This design can automatically shake the sample inside the conical test bottle, which can reduce the workload of the experimenter as much as possible, thereby ensuring the fullness of the liquid reaction to a greater extent.

[0015] This invention utilizes the elasticity of a compression spring to abut the lower end of a fixing pin, which is then inserted into the fixing plate. At this time, the first and second clamping rings can clamp and fix the position of the conical test flask. This design can prevent the conical test flask from shifting on the upper surface of the oscillating plate, thereby preventing the opening of the conical test flask from shifting relative to the lower end of the regulating valve. This ensures that the titrant dripped from the regulating valve can accurately fall into the interior of the conical test flask. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a three-dimensional structural diagram of the support structure of this utility model.

[0018] Figure 3 This is a three-dimensional structural diagram of the oscillation structure of this utility model.

[0019] Figure 4 This is a schematic diagram of the fixed structure of this utility model in use.

[0020] Figure 5 This is an exploded three-dimensional diagram of the fixed structure of this utility model.

[0021] Figure 6 This is an exploded three-dimensional diagram of the fixed structure of this utility model.

[0022] The attached figures are labeled as follows: 1. Support structure; 11. Support base; 12. Support rod; 13. Fixing seat; 14. Butterfly clamp; 15. Burette; 16. Adjusting valve; 2. Oscillating structure; 21. Spring seat; 22. Oscillating disc; 23. Motor; 24. Connecting disc; 25. Connecting column; 3. Fixing structure; 31. Hinge rod; 32. First clamping ring; 33. Fixing plate; 34. Hinge seat; 35. Second clamping ring; 36. Connecting seat; 37. Connecting plate; 38. Fixing pin; 39. Compression spring; 310. Conical test flask. Detailed Implementation

[0023] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The food testing and analysis titration device involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Example 1

[0024] like Figures 1 to 3 As shown, this utility model provides a food testing and analysis titration device, including: a support structure 1, which includes a support base 11 and a regulating valve 16. A support rod 12 is fixedly connected to the upper surface of the support base 11, and a fixing seat 13 is fixedly connected to the outer surface of the support rod 12. A butterfly clamp 14 is fixedly connected to one end of the fixing seat 13. The butterfly clamp 14 holds a burette 15 inside. The regulating valve 16 is connected to the lower end of the burette 15. The lower surface of the support base 11 has a large contact area with the table, and a counterweight is provided inside the support base 11, which can lower the center of gravity of the device and improve the stability of the device during use. The butterfly clamp 14 can clamp and fix the burette 15, and the height of the burette 15 can be adjusted when fixed. This design can adjust the height between the regulating valve 16 and the conical test flask 310. The regulating valve 16 can adjust the flow rate of the titrant inside the burette 15.

[0025] The oscillation structure 2 includes spring seats 21 and an oscillation disk 22. Four sets of spring seats 21 are provided, and the lower ends of all four sets are fixedly connected to the upper surface of the support base 11. The four corners of the lower surface of the oscillation disk 22 are fixedly connected to the upper ends of the four sets of spring seats 21. A motor 23 is mounted on the upper surface of the support base 11, and the position of the output end of the motor 23 corresponds to the center of the oscillation disk 22. A connecting plate 24 is fixedly connected to the output end of the motor 23, and a connecting post 25 is fixedly connected to the upper surface of one end of the connecting plate 24. The upper end of the connecting post 25 is fixedly connected to the lower surface of the oscillation disk 22. The arrangement of the four sets of spring seats 21 allows the oscillation disk 22 to undergo a certain displacement. The oscillating plate 22 can be supported to ensure its stability during use. An external power supply can provide power to the motor 23. After the motor 23 starts, its output can drive the connecting plate 24 and the connecting column 25 to rotate. Since the connecting plate 24 is elliptical, the center of the connecting column 25 is offset from the center of the oscillating plate 22. This allows the connecting column 25 to rotate around the output of the motor 23, causing the oscillating plate 22 to sway slightly. This design can automatically oscillate the sample inside the conical test flask 310, minimizing the workload of the experimenter and ensuring the sufficiency of the liquid reaction to a greater extent. Example 2

[0026] like Figures 4 to 6As shown, this embodiment also proposes a fixing structure 3, which includes a hinge rod 31, a fixing plate 33, a hinge seat 34, a fixing pin 38, and a conical test bottle 310. The lower end of the hinge rod 31 is fixedly connected to the upper surface of the oscillating disk 22, and the lower surface of the conical test bottle 310 is attached to the upper surface of the oscillating disk 22. A first clamping ring 32 is fixedly connected to the outer surface of the hinge rod 31, and a fixing plate 33 is fixedly connected to the outer surface of one end of the motor 23. A hinge seat 34 is hingedly connected to the outer surface of the hinge rod 31, and a first clamping ring 32 is fixedly connected to the outer surface of the hinge seat 34. A second clamping ring 35 is attached, and a connecting seat 36 is fixedly connected to the outer surface of one end of the second clamping ring 35. The outer surfaces of both ends of the hinge seat 34 can fit against the outer surfaces of both ends of the first clamping ring 32. A connecting plate 37 is inserted into the interior of one side surface of the connecting seat 36, and a fixing pin 38 is fixedly connected to one end of the connecting plate 37. The fixing pin 38 is inserted into the interior of the lower end of the connecting plate 37, and the lower end of the fixing pin 38 is inserted into the interior of the fixing plate 33. A compression spring 39 is fixedly connected to the upper end of the fixing pin 38, and the upper end of the compression spring 39 abuts against the fixing plate 33. The inner upper surface and the outer surface of the lower end of the conical test bottle 310 are in contact with the inner surfaces of the opposite sides of the first clamping ring 32 and the second clamping ring 35. The hinge seat 34 can rotate on the outer surface of the hinge rod 31, and when it rotates, it will drive the second clamping ring 35 and the connecting seat 36 to rotate synchronously. The compression spring 39 can push the lower end of the fixing pin 38 into the interior of the fixing plate 33. At this time, the first clamping ring 32 and the second clamping ring 35 can clamp and fix the position of the conical test bottle 310. Since the lower end of the conical test bottle 310 is round... Therefore, when the first clamping ring 32 and the second clamping ring 35 clamp and fix the conical test bottle 310, the conical test bottle 310 can be prevented from moving downward. This design can prevent the conical test bottle 310 from shifting on the upper surface of the shaking plate 22. This design can prevent the conical test bottle 310 from shifting on the upper surface of the shaking plate 22, thereby preventing the position between the opening of the conical test bottle 310 and the lower end of the regulating valve 16 from shifting, so that the titrant dripped from the regulating valve 16 can accurately fall into the interior of the conical test bottle 310.

[0027] Working principle: When using the equipment, first place the conical test bottle 310 on the upper surface of the shaking plate 22. Then, pull the connecting plate 37 to move the fixing pin 38 inside the lower end of the connecting seat 36, and abut against the compression spring 39 to retract. Then, pull the second clamping ring 35 to fit with the first clamping ring 32. At this time, the inner surfaces of the first clamping ring 32 and the second clamping ring 35 are in contact with the outer surface of the lower end of the conical test bottle 310. Then, release the connecting plate 37. Then, the compression spring 39 abuts against the lower end of the fixing pin 38 through its own elasticity and inserts into the interior of the fixing plate 33. At this time, the first clamping ring 32 and the second clamping ring 35 can clamp and fix the position of the conical test bottle 310.

[0028] Next, the burette 15 is clamped inside the butterfly clamp 14. Then, according to the specific circumstances of the test, the flow rate of the titrant inside the burette 15 is adjusted by the regulating valve 16. At this time, the titrant inside the burette 15 drips into the conical test flask 310 through the regulating valve 16. Then, the motor 23 is started to drive the oscillating plate 22 to automatically oscillate with the conical test flask 310. The above is the entire working principle of this utility model (the motor 23 used in this application is a product that can be directly purchased on the market. Its principle, connection method and control method are all existing technologies known to those skilled in the art, so they will not be described in detail here).

[0029] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0030] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0031] In conclusion, the above are merely preferred embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A titration apparatus for food testing and analysis, characterized in that, include: The support structure (1) includes a support base (11) and a regulating valve (16). A support rod (12) is fixedly connected to the upper surface of the support base (11), and a fixing seat (13) is fixedly connected to the outer surface of the support rod (12). A butterfly clip (14) is fixedly connected to one end of the fixing seat (13). A burette (15) is held inside the butterfly clip (14). The regulating valve (16) is connected to the lower end of the burette (15). The oscillation structure (2) includes a spring seat (21) and an oscillation disk (22). The spring seat (21) is provided in four sets, and the lower ends of the four sets of spring seats (21) are fixedly connected to the upper surface of the support base (11). The four corners of the lower surface of the oscillation disk (22) are fixedly connected to the upper ends of the four sets of spring seats (21). A motor (23) is installed on the upper surface of the support base (11), and the position of the output end of the motor (23) corresponds to the position of the center of the oscillation disk (22). The output end of the motor (23) is fixedly connected to a connecting disk (24), and a connecting column (25) is fixedly connected to the upper surface of one end of the connecting disk (24), and the upper end of the connecting column (25) is fixedly connected to the lower surface of the oscillation disk (22). The fixed structure (3) includes a hinge rod (31), a fixed plate (33), a hinge seat (34), a fixing pin (38), and a conical test bottle (310). The lower end of the hinge rod (31) is fixedly connected to the upper surface of the oscillating disk (22), and the lower surface of the conical test bottle (310) is attached to the upper surface of the oscillating disk (22). A first clamping ring (32) is fixedly connected to the outer surface of the hinge rod (31), and a fixed plate (33) is fixedly connected to the outer surface of one end of the motor (23). A hinge seat (34) is hingedly connected to the outer surface of the hinge rod (31), and a second clamping ring (35) is fixedly connected to the outer surface of the hinge seat (34). A connecting pin is fixedly connected to the outer surface of one end of the second clamping ring (35). The outer surfaces of the two ends of the connecting seat (36) and the hinge seat (34) can fit together with the outer surfaces of the two ends of the first clamping ring (32). A connecting plate (37) is inserted into the inner side surface of the connecting seat (36), and a fixing pin (38) is fixedly connected to one end of the connecting plate (37). The fixing pin (38) is inserted into the lower end of the connecting plate (37). The lower end of the fixing pin (38) is inserted into the inner side of the fixing plate (33), and a compression spring (39) is fixedly connected to the upper end of the fixing pin (38). The upper end of the compression spring (39) abuts against the upper surface of the inner side of the fixing plate (33). The outer surface of the lower end of the conical test bottle (310) fits together with the inner surface of the opposite side of the first clamping ring (32) and the second clamping ring (35).

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