A homogenizer device for food sample testing

Abstract

The application relates to the technical field of food sample testing, and particularly discloses a homogenizing device for food sample detection, which comprises a homogenizing barrel and a liquid storage barrel, the homogenizing barrel is arranged in the liquid storage barrel to form an annular accommodating cavity, the bottom end of the accommodating cavity is provided with a V-shaped liquid outlet pipe, the bottom of the V-shaped liquid outlet pipe is provided with a liquid storage bag, the side wall of the homogenizing barrel is provided with sieve holes for flowing liquid, a liquid inlet pipe is arranged in the homogenizing barrel, and the outer periphery of the liquid inlet pipe is fixedly connected with spiral blades. The food sample is poured into the homogenizing barrel, the homogenizing barrel rotates to separate the solid and liquid in the food sample through the centrifugal force, the liquid in the food sample is filtered from the sieve holes into the annular accommodating cavity and flows into the liquid storage bag, the solid content in the food sample is calculated, meanwhile, the liquid inlet pipe drives the spiral blades to rotate to crush the solid in the homogenizing barrel, the liquid storage bag is squeezed, the liquid in the liquid storage bag flows into the homogenizing barrel through the liquid inlet pipe, the liquid is mixed with the crushed solid, the mixture is continuously stirred through the spiral blades, and finally, a paste-shaped food sample with uniform solid and liquid is obtained.

Description

Technical Field

[0001] The present invention relates to the technical field of food sample testing, in particular to a homogenizing device for food sample testing. Background Art

[0002] There are many food samples on the market that contain both solid and liquid, such as pickled peppers, Lao Gan Ma chili oil, and fermented black beans. Before testing various properties (such as nutritional indicators, heavy metal content, additive content, etc.) of solid-liquid mixed food samples, the solid content in the sample must be determined first. The amount of solid content is related to the cost of many samples. To determine the solid content, the solid and liquid in the food sample must be separated first to obtain the solid weight. The solid weight is compared with the total sample weight to calculate the solid content in the sample; secondly, due to the large solid particles in the sample, the solid and liquid in the sample are not mixed uniformly. If direct sampling is performed for testing, it is very likely that only part of the content in the sample can be detected, and the test results obtained may not be representative, so the sample needs to be homogenized. The homogenization process is to break the solid-liquid mixed sample into a uniform paste. The paste contains all the contents in the sample. The test results obtained by testing the paste are more representative for food samples.

[0003] There are many homogenization devices on the market that can homogenize solid-liquid mixed samples, but these homogenization devices cannot separate the solid matter in the solid-liquid mixed sample first to measure the solid content of the sample. They must use external equipment, such as a filtering device to first separate the solids in the sample, calculate the solid content of the sample, and then mix the separated solids and liquids into a paste. For example, the invention patent with authorization announcement number CN112827629A discloses a homogenization device for plant litter, which includes a solid crushing tank and a container. The liquid material contained in the sample is first put into the container, and the solid material contained in the sample is then put into the crushing tank and crushed into powder. The solid powder is then put into the container for stirring and mixing to obtain a paste of the sample. The device itself does not have the function of separating the solid and liquid of a sample that is initially in a solid-liquid mixed state. It is impossible to measure the solid content of the sample first. It is necessary to use external equipment to separate the solid and liquid in the sample. Using external equipment will prolong the detection time and increase the detection cost. Summary of the Invention

[0004] The object of the present invention is to provide a homogenizing device for food sample detection, so as to solve the problem that the existing homogenizing device cannot separate the solid and liquid in advance for the sample whose initial state is a solid-liquid mixed state.

[0005] In order to solve the above problems, the technical solutions provided are as follows:

[0006] A homogenizing device for food sample testing comprises a homogenizing barrel and a liquid storage barrel, wherein the homogenizing barrel is placed in the liquid storage barrel, an annular accommodating chamber is formed between the homogenizing barrel and the liquid storage barrel, a V-shaped liquid outlet is provided at the bottom of the annular accommodating chamber, a vertical V-shaped liquid outlet pipe is provided at the liquid outlet, a liquid storage bag is detachably connected to the bottom end of the V-shaped liquid outlet pipe, a sieve hole penetrating the inside and outside of the homogenizing barrel is provided on the side wall of the homogenizing barrel, the bottom of the homogenizing barrel is movably mounted on the bottom of the liquid storage barrel, the inner side of the bottom of the homogenizing barrel is in the shape of a gear ring, a liquid inlet pipe extending from the bottom of the homogenizing barrel is installed in the homogenizing barrel, a nozzle is provided at the top of the liquid inlet pipe, and the bottom end of the liquid inlet pipe extends to the bottom of the liquid storage bag The outer periphery of the liquid inlet pipe inside the homogenization barrel is fixedly connected with a spiral blade, and the outer periphery of the liquid inlet pipe outside the homogenization barrel is fixedly sleeved with a sun gear, and the outer periphery of the sun gear is meshed with a planetary gear, and the planetary gear is meshed with the gear ring on the inner side of the bottom of the homogenization barrel. The outer periphery of the liquid inlet pipe is also sleeved with a first bevel gear under the sun gear, and the first bevel gear is meshed with a second bevel gear. The central axis of the second bevel gear is fixedly connected to the output shaft of the motor, and the motor is placed on a support plate, which is fixedly supported between the V-shaped liquid outlet pipes and fixedly connected to the outer wall of the V-shaped liquid outlet pipe. A support rod supporting the planetary gear is fixedly connected to the support plate.

[0007] The principle of the above technical solution is as follows: the food sample is poured into the homogenization barrel, the motor is started, the first and second bevel gears cooperate to make the liquid inlet pipe rotate clockwise, the rotation of the liquid inlet pipe drives the sun gear to rotate clockwise, the sun gear, planetary gear and ring gear cooperate to drive the homogenization barrel itself to rotate counterclockwise, the counterclockwise rotation of the homogenization barrel filters the liquid in the food sample from the sieve hole into the annular holding chamber through the action of centrifugal force, thereby realizing the solid-liquid separation in the food sample, the liquid in the annular holding chamber flows from the liquid outlet along the V-shaped liquid outlet pipe to the liquid storage bag, and waits for the liquid in the liquid storage bag to be filtered. When the mass of the liquid remains unchanged, the mass of the liquid in the liquid storage bag is weighed to obtain the mass of the solid in the food sample, thereby calculating the solid content in the food sample. At the same time, the liquid inlet pipe drives the spiral blade to rotate to break the solid in the homogenization barrel. The weighed liquid storage bag is put back into the bottom of the V-shaped liquid outlet pipe, and the liquid storage bag is gently squeezed. The liquid in the liquid storage bag continuously flows into the homogenization barrel through the liquid inlet pipe and is sprayed out by the nozzle. The liquid and the broken solid are mixed and continuously stirred by the spiral blade to finally obtain a paste-like food sample with a uniform solid-liquid mixture, completing the homogenization process.

[0008] Compared with the prior art, the above solution has the following beneficial effects:

[0009] 1. Compared with the existing homogenization device that needs to use an external filtering device to separate the solid and liquid in the sample to obtain the solid content, this device can directly break up the solids in the sample through the spiral blade. At the same time, the homogenization barrel rotates through the centrifugal effect to quickly separate the solid and liquid in the food sample to obtain the liquid mass, thereby calculating the solid content in the food sample. It does not require the help of an external filtering device, and at the same time reduces the pre-processing steps of the homogenization operation and speeds up the homogenization efficiency.

[0010] 2. Compared with the existing method of extracting solids on one side and mixing liquid on the other side, this device directly introduces liquid into the homogenization barrel through the liquid inlet pipe to mix with the solids in the homogenization barrel. The liquid sprayed out through the nozzle can also flush the inner wall of the homogenization barrel, so that the solids attached to the inner wall of the homogenization barrel are detached and continue to be broken up by the spiral blade, and at the same time mixed evenly with the liquid.

[0011] Furthermore, the liquid storage barrel has a mounting opening in the middle for mounting the homogenizing barrel. An inwardly extending receiving platform is provided at the bottom of the mounting opening. Inwardly recessed threads are provided on the wall of the mounting opening, and outwardly protruding threads are provided on the outer side of the bottom end of the homogenizing barrel. The homogenizing barrel is longitudinally positioned within the mounting opening, with its bottom surface supported on the receiving platform. The inwardly recessed threads and outwardly protruding threads cooperate to enable the homogenizing barrel to rotate within the liquid storage barrel.

[0012] Furthermore, the homogenizing barrel is covered with a sealing cover, the bottom of the sealing cover is open, the top of the sealing cover is provided with an arc-shaped handle, and the inner diameter of the sealing cover is the same as the outer diameter of the homogenizing barrel. The sealing cover is removed through the arc-shaped handle and covered on the outside of the homogenizing barrel to keep the homogenizing barrel in a sealed state.

[0013] Furthermore, a plurality of pits arranged in a grid are provided on the inner wall of the homogenizing barrel. When the homogenizing barrel rotates, solids in the food sample are thrown into the pits to avoid clogging the sieve holes on the side wall of the homogenizing barrel.

[0014] Furthermore, the V-shaped liquid outlet pipe shrinks toward the center and then extends vertically downward. The V-shaped liquid outlet pipe arranged in this way is close to the center of the liquid storage barrel, which facilitates the connection of the liquid storage bag and saves manufacturing materials.

[0015] Furthermore, a one-way valve is provided at the top of the liquid inlet pipe, which allows the liquid to flow from the liquid storage bag to the homogenization barrel, while the liquid in the homogenization barrel cannot flow from the liquid inlet pipe to the liquid storage bag.

[0016] Furthermore, the height of the top of the homogenizing barrel is lower than the height of the top of the liquid storage barrel. This arrangement prevents the homogenizing barrel from rotating too much and throwing the filtered liquid out of the annular accommodating chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic front cross-sectional view of a homogenization device;

[0018] Figure 2 It is a partial schematic diagram of the inner wall structure of the homogenization barrel;

[0019] Figure 3 for Figure 1 Schematic diagram of the middle part.

[0020] The figure marks in the drawings of the specification include: homogenization barrel 1, liquid storage barrel 2, sealing cover 3, arc-shaped handle 31, annular accommodating chamber 4, liquid outlet 5, V-shaped liquid outlet pipe 6, hook 7, liquid storage bag 8, electronic scale 9, sieve hole 10, pit 11, gear ring 12, liquid inlet pipe 13, sealing rubber ring 14, umbrella-shaped nozzle 15, spiral blade 16, sun gear 17, planetary gear 18, first bevel gear 19, second bevel gear 20, motor 21, support plate 22, support rod 23, one-way valve 24, controller 25, installation port 26, receiving platform 27. DETAILED DESCRIPTION

[0021] The following is further described in detail through specific implementation methods:

[0022] The embodiment is basically as shown in the attached Figures 1-3 As shown:

[0023] A homogenizing device for food sample testing, such as Figure 1 As shown, it consists of a vertical cylindrical homogenizing barrel 1 and a vertical cylindrical liquid storage barrel 2. A circular mounting opening 26 is machined in the center of the bottom of the liquid storage barrel 2. The bottom end of the mounting opening 26 is provided with a receiving platform 27 extending inward. The wall of the mounting opening 26 is provided with an inwardly recessed thread. The outer side of the bottom end of the homogenizing barrel 1 is provided with an outwardly protruding thread. The bottom end of the homogenizing barrel 1 is placed in the mounting opening 26 and the bottom surface of the homogenizing barrel 1 is supported on the receiving platform 27.

[0024] The top of the homogenizing barrel 1 is at a lower height than the top of the liquid storage barrel 2. The homogenizing barrel 1 is covered with a sealing cover 3 on the outside. The sealing cover 3 is open at the bottom and has an arc-shaped handle 31 at the top. The inner diameter of the sealing cover 3 is the same as the outer diameter of the homogenizing barrel 1. An annular accommodating chamber 4 is formed between the outer wall of the homogenizing barrel 1 and the inner wall of the liquid storage barrel 2. Two V-shaped liquid outlets 5 are machined in the center of the bottom of the annular accommodating chamber 4 and are symmetrical with the center of the liquid storage barrel 2. The V-shaped liquid outlets 5 accelerate the flow of liquid from the liquid storage barrel 2 into the V-shaped liquid outlet pipe. Two V-shaped liquid outlet pipes 6 are welded to the two V-shaped liquid outlets 5. The V-shaped liquid outlet pipes 6 shrink downward to the center and then extend vertically downward. A hook 7 is welded to the outer periphery of the bottom end of the V-shaped liquid outlet pipe 6. A soft liquid storage bag 8 that has been weighed is hung on the hook 7. The bottom end of the liquid storage bag 8 is placed on an electronic scale 9.

[0025] like Figure 2 As shown, the side wall of the homogenizing barrel 1 is machined with a number of evenly staggered sieve holes 10 and pits 11. The sieve holes 10 penetrate the inside and outside of the homogenizing barrel 1 and only allow liquid to pass through. When the sealing cover 3 is covered on the outside of the homogenizing barrel 1, the sealing cover 3 can seal the upper opening of the homogenizing barrel 1 and the side sieve holes 10. Figure 3As shown, the inner side of the bottom of the homogenizing barrel 1 is in the shape of a gear ring 12, and a through hole is machined in the center of the bottom of the homogenizing barrel 1, and a liquid inlet pipe 13 extending into the interior of the homogenizing barrel 1 is inserted through the through hole, and an annular sealing rubber ring 14 is embedded in the connection between the through hole and the liquid inlet pipe 13, so that the liquid inlet pipe 13 and the through hole are dynamically sealed; the top of the liquid inlet pipe 13 is threadedly connected to an umbrella-shaped nozzle 15, and the bottom end of the liquid inlet pipe 13 extends into the bottom of the liquid storage bag 8, and a spiral blade 16 is welded on the outer periphery of the liquid inlet pipe 13 inside the homogenizing barrel 1, and a sun gear 17 is sleeved on the outer periphery of the liquid inlet pipe 13 outside the homogenizing barrel 1 through interference fit, and a planetary gear 18 is meshed with the outer periphery of the sun gear 17, and the planetary gear 18 is engaged with the gear ring 1 at the bottom of the homogenizing barrel 1 2 meshes, the outer periphery of the liquid inlet pipe 13 is sleeved with a first bevel gear 19 located under the sun gear 17 through interference fit, and the first bevel gear 19 is meshed with a second bevel gear 20, and the central axis of the second bevel gear 20 is fixedly connected to the output shaft of the motor 21, and the motor 21 is electrically connected to the power supply through an electric wire. The motor 21 is placed on a support plate 22, which is fixedly supported between the two V-shaped liquid outlet pipes 6 and welded to the outer wall of the V-shaped liquid outlet pipe 6. A support rod 23 supporting the planetary gear 18 is welded to the support plate 22. A one-way valve 24 is provided at the connection at the top end of the liquid inlet pipe 13, and a controller 25 is provided on the outer wall of the liquid storage barrel 2. The opening and closing of the one-way valve 24 and the motor 21 are controlled by the controller 25.

[0026] The specific implementation process is as follows:

[0027] Pour the food sample of specified mass into the homogenization barrel 1, start the motor 21, and the motor 21 drives the first and second gears to rotate in coordination so that the liquid inlet pipe 13 rotates clockwise. The rotation of the liquid inlet pipe 13 drives the sun gear 17 to rotate clockwise. The sun gear 17, the planetary gear 18 and the ring gear 12 cooperate to drive the homogenization barrel 1 to rotate counterclockwise in the liquid storage barrel 2. The counterclockwise rotation of the homogenization barrel 1 filters the liquid in the food sample from the sieve hole 10 into the annular holding chamber 4 through the action of centrifugal force, thereby realizing solid-liquid separation in the food sample. The liquid in the annular holding chamber 4 flows from the V-shaped liquid outlet 5 along the V-shaped liquid outlet pipe 6 to the liquid storage bag 8. When the electronic scale 9 shows that the mass of the liquid in the liquid storage bag 8 is unchanged, the value obtained on the electronic scale 9 is subtracted from the weight of the liquid storage bag 8 to obtain the mass of the liquid in the food sample of specified mass, and then the specified mass of the food sample is used. The mass of the liquid is subtracted from the mass of the liquid to obtain the mixed solid content in the food sample, thereby calculating the solid content of the food sample; at the same time, the liquid inlet pipe 13 drives the spiral blade 16 to rotate clockwise to break up the solids in the homogenization barrel 1. After calculating the solid content of the food sample, the sealing cover 3 is extracted through the arc handle 31 and covered on the outside of the homogenization barrel 1, so that the upper opening and the sieve holes 10 on the side of the homogenization barrel 1 are in a sealed state, and the liquid storage bag 8 is squeezed. The liquid in the liquid storage bag 8 flows into the homogenization barrel 1 through the liquid inlet pipe 13 and is sprayed out by the nozzle. At this time, the liquid in the homogenization barrel 1 will not be thrown out from the sieve hole 10. The liquid is mixed with the broken solid and is continuously stirred by the spiral blade 16 to finally obtain a paste-like food sample with a uniform solid-liquid mixture, completing the homogenization process, and then sampling the food sample after the homogenization is completed for subsequent testing. The obtained detection structure is representative.

[0028] The above is only an embodiment of the present invention, and the common knowledge such as the specific structure and characteristics of the scheme is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several variations and improvements can be made, which should also be regarded as the scope of protection of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A homogenization device for food sample testing, comprising a homogenization tank and a liquid storage tank, characterized in that: The homogenization barrel is placed in the liquid storage barrel, and an annular accommodating chamber is formed between the homogenization barrel and the liquid storage barrel. The bottom of the annular accommodating chamber is provided with a V-shaped liquid outlet, and a vertical V-shaped liquid outlet pipe is provided at the liquid outlet. The bottom end of the V-shaped liquid outlet pipe is detachably connected to the liquid storage bag, and the side wall of the homogenization barrel is provided with a sieve hole that runs through the inside and outside of the homogenization barrel. The bottom of the homogenization barrel is movably installed at the bottom of the liquid storage barrel, and the inner side of the bottom of the homogenization barrel is in the shape of a gear ring. A liquid inlet pipe extending from the bottom of the homogenization barrel is installed in the homogenization barrel, a nozzle is provided at the top of the liquid inlet pipe, and the bottom end of the liquid inlet pipe extends to the bottom of the liquid storage bag. A spiral blade is fixedly connected to the outer periphery of the liquid inlet pipe inside the homogenization barrel, and a spiral blade is fixedly connected to the outer periphery of the liquid inlet pipe outside the homogenization barrel. The fixed sleeve is provided with a sun gear, and a planetary gear is engaged with the outer periphery of the sun gear. The planetary gear is engaged with the gear ring on the inner side of the bottom of the homogenization barrel. The outer periphery of the liquid inlet pipe is also provided with a first bevel gear under the sun gear, and a second bevel gear is engaged with the first bevel gear. The central axis of the second bevel gear is fixedly connected to the output shaft of the motor. The motor is placed on a support plate, which is fixedly supported between the V-shaped liquid outlet pipes and fixedly connected to the outer wall of the V-shaped liquid outlet pipe. A support rod supporting the planetary gear is fixedly connected to the support plate; the outside of the homogenization barrel is covered with a sealing cover, the bottom of the sealing cover is open, and the top of the sealing cover is provided with an arc handle. The inner diameter of the sealing cover is the same as the outer diameter of the homogenization barrel.

2. A homogenizing device for food sample testing according to claim 1, characterized in that: The liquid storage barrel is provided with an installation opening in the middle for installing the homogenizing barrel, a receiving platform extending inward is provided at the bottom of the installation opening, an inwardly recessed thread is provided on the wall of the installation opening, and an outwardly protruding thread is provided on the outer side of the bottom end of the homogenizing barrel. The homogenizing barrel is longitudinally placed in the installation opening and the bottom surface is supported on the receiving platform.

3. A homogenizing device for food sample testing according to claim 1, characterized in that: A plurality of pits arranged in a grid are provided on the inner wall of the homogenizing barrel.

4. A homogenizing device for food sample testing according to claim 1, characterized in that: The V-shaped liquid outlet pipe contracts toward the center and then extends vertically downward.

5. The homogenizing device for food sample testing according to claim 1, characterized in that: A one-way valve is provided at the top end of the liquid inlet pipe.

6. A homogenizing device for food sample testing according to claim 1, characterized in that: The height of the top of the homogenization barrel is lower than the height of the top of the liquid storage barrel.

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