Titration equipment for food inspection and analysis

Abstract

Titration equipment for food inspection and analysis belongs to the technical field of food detection devices and comprises a base assembly, a fixed disc assembly, a burette and an oscillation device, the fixed disc assembly is fixed at the upper end of the base assembly, the burette fixedly penetrates into the fixed disc assembly, the oscillation device is fixed at the upper end of the fixed disc assembly, and the fixed disc assembly is fixed at the lower end of the oscillation device. The oscillation device is matched with the burettes for use, and a plurality of burettes are arranged. The utility model discloses a burette, which can solve the problems that in the background technology, in the experiment process, a conical flask is generally placed on a base of an iron stand, and then a corresponding burette is fixed on a supporting rod of the iron stand through a sliding block for operation, so that the operation is complicated, and the conical flask is easily knocked down. The problems that titration equipment needs to be used in food detection, food needs to be dissolved, put into a test tube and then shaken, however, manual shaking is adopted at present, the detection efficiency is reduced, and people cannot use the equipment conveniently are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of devices for food detection, in particular to a titration device for food inspection and analysis. Background Art

[0002] Titration is a chemical experiment operation, which is widely used in chemical experiments. It mainly includes acid-base neutralization titration, redox titration, precipitation titration, complexometric titration, etc. When doing titration experiments, a lot of experimental instruments are needed, such as pipettes, burettes, conical flasks and iron stands, etc. During the experiment, generally, the conical flask is placed on the base of the iron stand, and then the corresponding burette is fixed on the support rod of the iron stand through a slider for operation. The above method is complicated in operation, and the conical flask is easy to be knocked down. At the same time, titration equipment is needed in food detection. In order to facilitate the comparison of food samples, the food needs to be dissolved and put into a test tube and then shaken. However, at present, manual shaking is adopted. When there are too many food samples to be detected, the detection efficiency is reduced, which is not convenient for people to use. Summary of the Utility Model

[0003] The purpose of the utility model is to solve the above problems existing in the prior art, and provide a titration device for food inspection and analysis.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A titration device for food inspection and analysis includes: a base assembly, a fixed disk assembly, burettes and a shaking device. The upper end of the base assembly is fixed with a fixed disk assembly. The burettes are fixedly inserted into the fixed disk assembly. The upper end of the fixed disk assembly is fixed with a shaking device. The shaking device is used in cooperation with the burettes. A plurality of burettes are provided.

[0006] The base assembly includes: a bottom plate and a measuring cup fixing sleeve. A plurality of the measuring cup fixing sleeves are fixed on the upper end of the bottom plate. A trapezoidal stepped protrusion is arranged inside the measuring cup fixing sleeve, and the diameter of the trapezoidal stepped protrusion gradually decreases from top to bottom.

[0007] The fixed disk assembly includes: a fixed disk, fixed disk holes and fixing rings. The fixed disk is horizontally fixed on the upper end of the bottom plate. A plurality of the fixed disk holes are evenly arranged on the upper end of the fixed disk. A fixing ring is rotatably connected in each fixed disk hole. The number of the plurality of fixed disk holes is the same as that of the plurality of measuring cup fixing sleeves. A corresponding measuring cup fixing sleeve is arranged below each fixed disk hole.

[0008] A rubber plate is installed on the surface of the burette by interference fit. The burette passes through the fixing ring, and the rubber plate abuts against the top surface of the fixing ring.

[0009] The oscillation device includes: a motor, a sliding sleeve, a sliding ring, a spring, a fixed rod, a folding rod and a sealing plug. A motor is fixed at the center position of the upper end of the fixed disk. A sliding sleeve is fixed on the output shaft of the motor. The sliding ring is slidably sleeved on the sliding sleeve. A spring is sleeved on the sliding sleeve and is arranged above the sliding ring. Limiting convex edges are arranged on both the upper end face and the lower end face of the sliding sleeve. One end of the fixed rod is fixedly connected to the side wall of the sliding ring, and the other end of the fixed rod is rotatably connected to a folding rod. A sealing plug is fixed at the front end of the folding rod, and the sealing plug is sealingly arranged in the nozzle of the burette. The sealing plug is in a multi-stage frustum shape, and the diameter gradually decreases from top to bottom.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0011] The present utility model provides a titration device for food inspection and analysis, which can solve the problems raised in the background technology: during the experiment, generally, a conical flask is placed on the base of an iron stand, and then the corresponding burette is fixed on the support rod of the iron stand through a slider for operation. The above method is complex in operation, and the conical flask is easily knocked down. And in food detection, a titration device is needed. In order to facilitate the comparison of food samples, the food needs to be dissolved and put into a test tube and then shaken. However, currently, manual shaking is used. When there are too many food samples to be detected, the detection efficiency is reduced, which is inconvenient for people to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is the front view of the overall structure of the present utility model;

[0013] Figure 2 is the top view of the fixed disk assembly;

[0014] Figure 3 is the schematic structural diagram of the burette;

[0015] Figure 4 is the partial enlarged view of the oscillation device. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] Next, the technical solutions in the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0017] A titration device for food inspection and analysis, comprising: a base assembly 1, a fixed disk assembly 2, a burette 3 and a shaking device 4. The upper end of the base assembly 1 is fixed with the fixed disk assembly 2. The burette 3 is fixedly inserted into the fixed disk assembly 2. The upper end of the fixed disk assembly 2 is fixed with the shaking device 4. The shaking device 4 is used in cooperation with the burette 3. A plurality of burettes 3 are provided.

[0018] The base assembly 1 includes: a bottom plate 1-1 and a measuring cup fixing sleeve 1-2. A plurality of the measuring cup fixing sleeves 1-2 are fixed on the upper end of the bottom plate 1-1. A trapezoidal stepped protrusion 1-3 is arranged inside the measuring cup fixing sleeve 1-2, and the diameter of the trapezoidal stepped protrusion 1-3 gradually decreases from top to bottom.

[0019] The fixed disk assembly 2 includes: a fixed disk 2-1, a fixed disk hole 2-2 and a fixing ring 2-3. The fixed disk 2-1 is horizontally fixed on the upper end of the bottom plate 1-1. A plurality of the fixed disk holes 2-2 are evenly arranged on the upper end of the fixed disk 2-1. A fixing ring 2-3 is rotatably connected in each of the fixed disk holes 2-2. The number of the plurality of fixed disk holes 2-2 is the same as that of the plurality of measuring cup fixing sleeves 1-2. One measuring cup fixing sleeve 1-2 is correspondingly arranged below each fixed disk hole 2-2.

[0020] A rubber plate 3-1 is press-fitted on the surface of the burette 3. The burette 3 passes through the fixing ring 2-3, and the rubber plate 3-1 abuts against the top surface of the fixing ring 2-3.

[0021] The shaking device 4 includes: a motor 4-1, a sliding sleeve 4-2, a sliding ring 4-3, a spring 4-4, a fixed rod 4-5, a folding rod 4-6 and a sealing plug 4-7. The motor 4-1 is fixed at the center position of the upper end of the fixed disk 2-1. A sliding sleeve 4-2 is fixed on the output shaft of the motor 4-1. The sliding ring 4-3 is slidably sleeved on the sliding sleeve 4-2. The spring 4-4 is sleeved on the sliding sleeve 4-2, and the spring 4-4 is arranged above the sliding ring 4-3. Limiting convex edges are arranged on both the upper end surface and the lower end surface of the sliding sleeve 4-2. One end of the fixed rod 4-5 is fixedly connected to the side wall of the sliding ring 4-3. The other end of the fixed rod 4-5 is rotatably connected to the folding rod 4-6. A sealing plug 4-7 is fixed at the front end of the folding rod 4-6. The sealing plug 4-7 is sealingly arranged in the nozzle of the burette 3. The sealing plug 4-7 is in a multi-stage frustum shape, and the diameter gradually decreases from top to bottom.

[0022] Preferably, the motor 4-1 is a stepping motor.

[0023] The working principle of the present utility model is:

[0024] When using this device, push the folding rod 4-6 to rotate upward along the fixed rod 4-5. Then, place the test sample in the burette 3, and insert the burette 3 into the fixing ring 2-3. Multiple fixing rings 2-3 and multiple burettes 3 are provided, which can oscillate and titrate multiple samples simultaneously. Then, insert the measuring cup or conical flask into the measuring cup fixing sleeve 1-2 for fixation. Different models of measuring cups or conical flasks can be fixed by the trapezoidal stepped protrusion 1-3. Then, turn the folding rod 4-6 downward to reset, so that the sealing plug 4-7 is inserted into the nozzle of the burette 3 for sealing. The multi-stage frustum shape provided at the lower end of the sealing plug 4-7 can seal the nozzles of burettes 3 with different diameters. The motor 4-1 of this device is connected to an external power supply. After the motor 4-1 is powered on, it drives the sliding sleeve 4-2 and the sliding ring 4-3 to rotate reciprocally clockwise or counterclockwise. Furthermore, through the fixed rod 4-5, the folding rod 4-6, and the sealing plug 4-7, the burette 3 is driven to rotate reciprocally in the fixing disk hole 2-2 with rotational connection within the sliding ring 4-3, which plays a role in oscillating the sample in the burette 3. After the oscillation is completed, power off the motor 4-1. At this time, the burette 3 can be opened for titration. When the titration detection is completed, pull the sliding ring 4-3 upward to move upward along the sliding sleeve 4-2, and simultaneously compress the spring 4-4. The movement of the sliding ring 4-3 drives the separation of the sealing plug 4-7 and the burette 3. At this time, multiple burettes 3 can be removed all at once. The compressed spring 4-4 plays a role in resetting the sliding ring 4-3.

[0025] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A titration device for food inspection and analysis, characterized in that: include: A base assembly (1), a fixed disk assembly (2), a burette (3) and an oscillating device (4), wherein the fixed disk assembly (2) is fixed to the upper end of the base assembly (1), the burette (3) is fixedly inserted into the fixed disk assembly (2), the oscillating device (4) is fixed to the upper end of the fixed disk assembly (2), the oscillating device (4) is used in conjunction with the burette (3), and the burette (3) is provided in plurality.

2. A titration device for food inspection and analysis according to claim 1, characterized in that: The base assembly (1) comprises: a base plate (1-1) and a measuring cup fixing sleeve (1-2); a plurality of measuring cup fixing sleeves (1-2) are fixed to the upper end of the base plate (1-1); a trapezoidal stepped protrusion (1-3) is arranged inside the measuring cup fixing sleeve (1-2); and the diameter of the trapezoidal stepped protrusion (1-3) gradually decreases from top to bottom.

3. A titration device for food inspection and analysis according to claim 2, characterized in that: The fixed disk assembly (2) comprises: a fixed disk (2-1), a fixed disk hole (2-2) and a fixed ring (2-3); the fixed disk (2-1) is horizontally fixed on the upper end of the bottom plate (1-1); a plurality of the fixed disk holes (2-2) are evenly arranged on the upper end of the fixed disk (2-1); a fixed ring (2-3) is rotatably connected in each of the fixed disk holes (2-2); the number of the plurality of fixed disk holes (2-2) is the same as the number of the plurality of measuring cup fixing sleeves (1-2); and a corresponding measuring cup fixing sleeve (1-2) is arranged below each of the fixed disk holes (2-2).

4. A titration device for food inspection and analysis according to claim 3, characterized in that: A rubber plate (3-1) is interference-fitted on the surface of the burette (3); the burette (3) passes through the fixing ring (2-3); and the rubber plate (3-1) rests against the top surface of the fixing ring (2-3).

5. A titration device for food inspection and analysis according to claim 4, characterized in that: The oscillating device (4) comprises: a motor (4-1), a sliding sleeve (4-2), a sliding ring (4-3), a spring (4-4), a fixing rod (4-5), a folding rod (4-6) and a sealing plug (4-7); the motor (4-1) is fixed at the center position of the upper end of the fixing plate (2-1); the sliding sleeve (4-2) is fixed on the output shaft of the motor (4-1); the sliding ring (4-3) is slidably mounted on the sliding sleeve (4-2); the sliding sleeve (4-2) is mounted with a spring (4-4); the spring (4-5) is folded on the folding rod (4-6) and the folding rod (4-7) is folded on the folding rod (4-7). -4) is arranged above the sliding ring (4-3), the upper end surface and the lower end surface of the sliding sleeve (4-2) are both provided with limiting convex edges, one end of the fixing rod (4-5) is fixedly connected to the side wall of the sliding ring (4-3), the other end of the fixing rod (4-5) is rotatably connected to a folding rod (4-6), a sealing plug (4-7) is fixed at the front end of the folding rod (4-6), the sealing plug (4-7) is sealingly arranged in the mouth of the burette (3), the sealing plug (4-7) is arranged in a multi-stage truncated cone shape, and the diameter gradually decreases from top to bottom.

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