A parasite detection device in meat and a meat slice osmotic pressure difference pretreatment device

Abstract

The present invention discloses a parasite detection device in meat and a meat slice osmotic pressure difference pretreatment device, comprising a tube body with an opening at the upper end and a closed lower end and a shell body with an opening at the upper end and a closed lower end, a cover shell is fixed to the upper part of the outer side of the tube body, the cover shell and the upper end opening of the shell body are detachably connected, a plurality of through holes are arranged at the lower part of the outer side of the tube body, a semi-permeable membrane for blocking the through holes is installed on the outer side of the tube body, a through hole is opened on the outer side of the tube body, and the through hole is higher than the semi-permeable membrane; the parasite detection device forms a salt solubility difference in meat and promotes the detachment of parasites from the meat under the action of the salt concentration difference, is simple to operate, convenient to detect, easy to promote, and can quickly detect water-injected meat.

Description

Technical Field

[0001] The invention relates to the technical field of raw meat detection, in particular to a device for detecting parasites in meat and a meat slice osmotic pressure difference pretreatment device. Background Art

[0002] In the prior art, raw meat parasite detection first involves sampling, then cutting the meat into pieces, placing the pieces on a glass slide to prepare a sample, and then observing the parasites in the meat under a microscope. Observation under the microscope involves a large number of samples and the need to place the meat pieces on a glass slide for multiple times, which takes a lot of time and requires certain knowledge of parasites. The operator must be able to separate the parasites from the meat, making the operation difficult and difficult to promote in life. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide a device for detecting parasites in meat, which forms a salt solubility difference in meat and promotes the separation of parasites from the meat under the action of the salt concentration difference. The device is simple to operate, convenient to detect, easy to promote, and can quickly detect water-injected meat, which can effectively solve the problems in the background technology.

[0004] The technical solution adopted by the present invention to solve the technical problem includes:

[0005] On the one hand, a meat parasite detection device is provided, comprising a tube body with an open upper end and a closed lower end and a shell body with an open upper end and a closed lower end, a cover shell is fixed to the upper part of the outer side of the tube body, and the cover shell and the upper opening of the shell body are detachably connected.

[0006] A plurality of through holes are arranged at the lower part of the outer side of the tube body, and a semi-permeable membrane for covering the through holes is installed on the outer side of the tube body.

[0007] A through hole is formed on the outer side of the tube body, and the through hole is higher than the semi-permeable membrane.

[0008] As a preferred technical solution of the present invention, the outer side of the through hole is connected to one end of the conduit, and a purification cover is detachably mounted on the other end of the conduit.

[0009] As a preferred technical solution of the present invention, a cotton stalk is inserted into the tube body, and salt particles are adhered to the cotton stalk.

[0010] As a preferred technical solution of the present invention, the lower end of the shell is opened, and a buckle cover is detachably installed on the opening of the lower end of the shell, a motor is installed on the lower side of the buckle cover, the output shaft of the motor is connected to the lower end of the rotating shaft, the upper end of the rotating shaft passes through and extends to the upper side of the buckle cover, and a crushing knife is installed on the upper end of the rotating shaft.

[0011] As a preferred technical solution of the present invention, an annular sleeve is provided in the space between the tube body and the shell, and a gap is provided between the annular sleeve and the tube body.

[0012] As a preferred technical solution of the present invention, a cotton stalk is inserted into the tube body, and salt particles are adhered to the cotton stalk.

[0013] As a preferred technical solution of the present invention, it also includes a vertical pipe with an open upper end and a closed lower end, and the end of the conduit away from the through hole is bent downward and enters the vertical pipe.

[0014] As a preferred technical solution of the present invention, a support rod is fixed to the upper end of the annular sleeve, the sum of the height of the support rod and the height of the annular sleeve is equal to the depth of the shell cavity, and the outer peripheral side of the annular sleeve is in contact with the inner wall of the shell.

[0015] On the other hand, there is also provided a meat slice osmotic pressure difference pretreatment device, which uses any of the above-mentioned parasite detection devices in meat, including a guide rod and a support frame, both ends of the guide rod are provided with bumps, one end of the guide rod is fixed with a plurality of parallel pricking needles, and a sliding block is installed on the guide rod;

[0016] A metal mesh is installed on the support frame.

[0017] As a preferred technical solution of the present invention, the protrusions at both ends of the guide rod are made of elastic rubber material, wherein the protrusions extend into the tube body, and the outer side of the protrusions is sealed and fitted with the inner wall of the tube body.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The parasite detection device of the example of the present invention, on the one hand, the sampled meat is cut into slices, the solubility of the meat slices near the semi-permeable membrane increases, and the solubility of the salt water in the meat slices gradually decreases in the direction away from the semi-permeable membrane, the solubility distribution of the salt water makes the parasites in the meat slices move to the surface of the meat slices or the physiological saline, which is convenient for separating the parasites and the meat for observation, and the operation is simple, the required equipment cost is low, and the parasite detection in the meat is convenient; on the other hand, the sampled meat of a set weight is weighed and then minced, and the water in the minced meat enters the tube body through the semi-permeable membrane under the action of osmotic pressure, and whether the meat is water-injected meat is determined by observing whether the rising height of the liquid level in the tube body exceeds a predetermined height, and the water-injected meat detection operation is convenient; on the other hand, the minced meat is left to stand to determine the microbial contamination of the sampled meat by the amount of gas produced by corruption, thereby realizing the contamination detection of water-injected meat.

[0020] 2. In the parasite detection device of the example of the present invention, the cover shell is installed on the opening of the shell and the semi-permeable membrane on the tube body does not contact the inner wall of the annular sleeve. The annular sleeve fills part of the space in the inner cavity of the shell, thereby reducing the weight of the sampled meat that flows over the semi-permeable membrane, reducing the amount of sampled meat used in the water-injected meat detection process, and reducing the detection cost.

[0021] 3. In the parasite detection device of the example of the present invention, the water content of the physiological saline in the shell enters the tube body under the action of the osmotic pressure difference, the concentration of the saturated saline in the tube body is reduced, the salt particles on the cotton stalk are dissolved to maintain the concentration of the saturated saline in the tube body, and the concentration of the saturated saline at each height of the tube body is the same, thereby enhancing the osmotic pressure difference between the tube body and the shell.

[0022] 4. In the parasite detection device for meat of the present invention, the impact generated by the slider causes the needle to pierce the meat slice, and the needle repeatedly pierces the meat slice at different positions to form a plurality of water seepage micropores on the meat slice, which facilitates the formation of an osmotic pressure difference inside and outside the meat slice. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 It is a schematic structural diagram of an embodiment of the present invention;

[0025] Figure 3 It is a schematic structural diagram of another embodiment of the present invention;

[0026] Figure 4 It is a schematic structural diagram of another embodiment of the present invention;

[0027] Figure 5 It is a schematic structural diagram of an embodiment of the meat slice osmotic pressure difference pretreatment equipment of the present invention.

[0028] In the figure: 1 tube body, 2 cover shell, 3 shell, 4 conduit, 5 purification cover, 6 cotton rod, 7 semi-permeable membrane, 8 support rod, 9 annular sleeve, 10 crushing knife, 11 rotating shaft, 12 motor, 13 buckle cover, 14 vertical tube, 15 slider, 16 guide rod, 17 needle, 18 metal net, 19 support frame. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Embodiment 1:

[0031] See also Figure 1-2 The present embodiment discloses a parasite detection device in meat, including a tube body 1 with an open upper end and a closed lower end, and a shell body 3 with an open upper end and a closed lower end. A cover shell 2 is fixed to the upper portion of the outer side of the tube body 1, and the upper end openings of the cover shell 2 and the shell body 3 are threadedly connected or sealed.

[0032] A plurality of through holes are provided at the lower outer portion of the tube body 1 , and a semi-permeable membrane 7 is installed on the outer side of the tube body 1 to cover the through holes. The through holes allow the inner side of the semi-permeable membrane 7 to communicate with the inner cavity of the tube body 1 , and the peripheral side of the through holes of the tube body 1 supports the semi-permeable membrane 7 .

[0033] A through hole is formed on the outer side of the tube body 1 , and the through hole is higher than the semi-permeable membrane 7 .

[0034] Furthermore, the shell 3 is made of transparent plastic or transparent glass, which makes it easy to observe the contents of the shell 3.

[0035] The semi-permeable membrane 7 is parchment paper, collodion film, cellulose acetate membrane, aromatic polyhydrazide membrane or aromatic polyamide membrane in the prior art. The semi-permeable membrane 7 blocks the passage of salt and allows the passage of water.

[0036] The working process and principle of this embodiment are:

[0037] The sampled meat is cut into slices and then tied to the outside of the semi-permeable membrane 7 by ropes or elastic rubber rings, and the slices of meat completely cover the semi-permeable membrane 7, and then physiological saline is added to the shell 3, and the lower end of the tube body 1 is extended into the shell 3, and the cover 2 is installed on the opening of the shell 3. During the insertion of the tube body 1 into the shell 3, the physiological saline in the shell 3 overflows through the through hole and flows out, and the physiological saline in the shell 3 overflows the semi-permeable membrane 7; saturated saline is added to the tube body 1, and the saturated saline liquid level of the tube body 1 is close to the physiological saline liquid level of the shell 3; as time goes by, the meat slices approach The solubility at the semi-permeable membrane 7 increases, and the solubility of the brine gradually decreases as the meat slice moves away from the semi-permeable membrane 7. The solubility distribution of the brine causes the parasites in the meat slice to move to the surface of the meat slice or into the saline, which is convenient for separating the parasites and the meat for observation. The operation is simple and the required equipment cost is low, making the detection of parasites in the meat convenient. The water in the saline of the shell 3 enters the tube body 1 under the action of the osmotic pressure, the volume of the saline in the shell 3 becomes smaller, and the through hole balances the air pressure inside and outside the shell 3, reducing the influence of the air pressure change on the water penetration in the saline in the shell 3.

[0038] Weigh the sampled meat to a set weight and then mince it, add the minced meat into the shell 3, extend the lower end of the tube body 1 into the shell 3, install the cover 2 on the opening of the shell 3, add saturated salt water into the tube body 1, and the minced meat flows over the semi-permeable membrane 7. The water in the minced meat enters the tube body 1 through the semi-permeable membrane 7 under the action of osmotic pressure, and judge whether the meat is water-injected meat by observing whether the rising height of the liquid level in the tube body 1 exceeds the predetermined height; weigh normal meat of a set weight and perform the above operation to obtain a predetermined height reference value.

[0039] Embodiment 2:

[0040] like Figure 1 and Figure 2As shown, this embodiment discloses a parasite detection device in meat, and its structure is substantially the same as that of the first embodiment, except that the outer side of the through hole of this embodiment is connected to one end of the conduit 4, and the other end of the conduit 4 is detachably provided with a purification cover 5.

[0041] The purification hood 5 includes a hood tube and an air purification component located in the hood tube. The air purification component is melt-blown non-woven fabric, sterile cotton, silver ion sterilization cloth or activated carbon.

[0042] As the water in the saline solution in the shell 3 penetrates into the tube body 1, the volume of the saline solution in the shell 3 becomes smaller, and the external air enters the shell 3 through the purification cover 5 and the conduit 4, thereby achieving the balance of the air in the shell 3. The purification cover 5 filters the air entering the shell 3, thereby reducing the contamination of the meat or minced meat in the shell 3 by bacteria in the air.

[0043] Embodiment three:

[0044] like Figure 1-2 As shown, this embodiment discloses a parasite detection device in meat, and its structure is substantially the same as that of the first embodiment, except that a cotton rod 6 is inserted into the tube body 1 of this embodiment, and salt particles are adhered to the cotton rod 6.

[0045] The water content of the physiological saline in the shell 3 enters the tube body 1 under the action of the osmotic pressure difference, the concentration of the saturated saline in the tube body 1 decreases, and the salt particles on the cotton stalk 6 dissolve to maintain the concentration of the saturated saline in the tube body 1, and the concentration of the saturated saline at each height of the tube body 1 is the same, thereby enhancing the osmotic pressure difference between the tube body 1 and the shell 3.

[0046] In another embodiment, salt is added into the tube body 1 and the salt is naturally dissolved in the tube body 1 .

[0047] Embodiment 4:

[0048] like Figure 3 and Figure 4 As shown, the present embodiment discloses a parasite detection device in meat, and its structure is substantially the same as that of the first embodiment, except that, the lower end opening of the shell 3 of the present embodiment is provided, and a buckle cover 13 is detachably mounted on the opening of the lower end of the shell 3, and the buckle cover 13 and the opening of the lower end of the shell 3 are fixed by bolts, threaded connection or sealed connection, and a motor 12 is mounted on the lower side of the buckle cover 13, and the output shaft of the motor 12 is connected to the lower end of the rotating shaft 11, and the upper end of the rotating shaft 11 passes through and extends to the upper side of the buckle cover 13, and a crushing knife 10 is mounted on the upper end of the rotating shaft 11, and the motor 12 drives the crushing knife 10 to rotate through the rotating shaft 11.

[0049] Preferably, an annular sleeve 9 is provided in the space between the tube body 1 and the shell 3, a gap is provided between the annular sleeve 9 and the tube body 1, the annular sleeve 9 and the semi-permeable membrane 7 are not in contact, and further a support rod 8 is fixed to the upper end of the annular sleeve 9, the sum of the height of the support rod 8 and the height of the annular sleeve 9 is equal to the depth of the inner cavity of the shell 3, and the outer peripheral side of the annular sleeve 9 is in contact with the inner wall of the shell 3.

[0050] The input end of the motor 12 is electrically connected to the output end of the external control switch. The motor 12 is a commonly used electrical device in the prior art, and its structure and circuit are common knowledge and will not be described again.

[0051] The working process and principle of this embodiment are:

[0052] The buckle cover 13 is installed on the opening at the lower end of the shell 3, the sampled meat of a set weight is weighed and put into the shell 3, the motor 12 drives the crushing knife 10 to rotate through the rotating shaft 11, the crushing knife 10 grinds the sampled meat in the shell 3, and then the lower end of the tube body 1 extends into the shell 3, the cover 2 is installed on the opening of the shell 3, saturated salt water is added to the tube body 1, the ground meat overflows the semi-permeable membrane 7, and the water in the ground meat enters the tube body 1 through the semi-permeable membrane 7 under the action of osmotic pressure, and whether the meat is water-injected meat is determined by observing whether the rising height of the liquid level in the tube body 1 exceeds the predetermined height.

[0053] Furthermore, after the sampled meat is minced, the annular sleeve 9 is inserted into the shell body 3, and then the lower end of the tube body 1 is extended into the annular sleeve 9. The cover shell 2 is installed on the opening of the shell body 3 and the semi-permeable membrane 7 on the tube body 1 does not contact the inner wall of the annular sleeve 9. The annular sleeve 9 fills part of the inner cavity of the shell 3, reducing the weight of the sampled meat that overflows the semi-permeable membrane 7 and reducing the amount of sampled meat used.

[0054] The support rod 8 exposes the through hole outside the tube body 1.

[0055] Embodiment five:

[0056] like Figure 3-4 As shown, this embodiment discloses a parasite detection device in meat, and its structure is substantially the same as that of the fourth embodiment, except that a cotton rod 6 is inserted into the tube body 1 of this embodiment, and salt particles are adhered to the cotton rod 6.

[0057] The water content of the saline solution in the shell 3 enters the tube body 1 under the action of the osmotic pressure difference, the concentration of the saturated saline solution in the tube body 1 decreases, and the salt particles on the cotton stalk 6 dissolve to maintain the concentration of the saturated saline solution in the tube body 1, thereby enhancing the osmotic pressure difference between the tube body 1 and the shell 3.

[0058] Embodiment six:

[0059] like Figure 4As shown, this embodiment discloses a parasite detection device in meat, and its structure is substantially the same as that of the fourth embodiment, except that this embodiment further includes a vertical tube 14 with an open upper end and a closed lower end, and the end of the conduit 4 away from the through hole bends downward and enters into the vertical tube 14.

[0060] The working process and principle of this embodiment are:

[0061] After the judgment of whether the sampled meat is water-injected meat is completed, one end of the conduit 4 bends downward and enters the vertical pipe 14, clean water is injected into the vertical pipe 14, and the cover shell 2 is opened to make the liquid level in the conduit 4 the same as the liquid level in the vertical pipe 14. The cover shell 2 is installed on the upper opening of the shell 3, and then left to stand for 1-48 hours. The ground sampled meat rots and produces gas, and the microbial contamination in the sampled meat is judged by the depth of the water drop in the conduit 4.

[0062] Furthermore, before the sampled meat is minced, the surface of the sampled meat is rinsed with clean water or cleaned with hydrogen peroxide to reduce environmental contamination of the sampled meat.

[0063] In the prior art, the water injected by illegal vendors who produce water-injected meat is not clean enough, and the microorganisms in the injected water enter the meat, causing the meat to be contaminated; if the device detects that the sampled meat is water-injected meat but the contamination is small, the water-injected meat can be cooked and sterilized as animal food.

[0064] Embodiment seven:

[0065] like Figure 5 As shown, this embodiment discloses a parasite detection device in meat. On the basis of the first embodiment, this embodiment is a meat slice osmotic pressure difference pretreatment device, including a guide rod 16 and a support frame 19, both ends of the guide rod 16 are provided with protrusions, one end of the guide rod 16 is fixed with a plurality of parallel needles 17, a sliding slider 15 is installed on the guide rod 16, and a metal mesh 18 is installed on the support frame 19; preferably, the slider 15 is a metal block, the slider 15 slides along the guide rod 16, and the protrusions at both ends of the guide rod 16 prevent the slider 15 from detaching from the guide rod 16.

[0066] The sampled meat slices in Example 1 are placed on the metal mesh 18, and the puncture needle 17 is placed on the meat slices. The slider 15 is moved up and then quickly moved downward. The slider 15 hits the bump of the guide rod 16. The impact of the slider 15 causes the puncture needle 17 to pierce the meat slices. The meat slices are repeatedly pierced at different positions to form a number of water seepage micropores on the meat slices, which facilitates the formation of an osmotic pressure difference inside and outside the meat slices.

[0067] Preferably, the protrusions at both ends of the guide rod 16 are made of elastic rubber material, wherein the protrusions extend into the tube body 1, and the outer side of the protrusions is sealed and fits tightly against the inner wall of the tube body 1; in Example 6, the protrusion at one end of the guide rod 16 is inserted into the tube body 1, so that the tube body 1 is closed and the influence of the tube body 1 on the detection of the degree of spoilage of the sampled meat is reduced.

[0068] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for detecting parasites in meat, characterized in that: It comprises a tube body (1) with an upper end open and a lower end closed, and a shell body (3) with an upper end open and a lower end closed, a cover shell (2) being fixed to the upper portion of the outer side of the tube body (1), the cover shell (2) and the shell body (3) being detachably connected at the upper end openings, physiological saline being added into the shell body (3), and saturated saline being added into the tube body (1); A plurality of through holes are provided at the lower outer portion of the tube body (1), and a semi-permeable membrane (7) is installed on the outer side of the tube body (1) to cover the through holes; The outer side of the tube body (1) is provided with a through hole, wherein the through hole is higher than the semi-permeable membrane (7); The outer side of the through hole is connected to one end of a conduit (4), and a purification cover (5) is detachably mounted on the other end of the conduit (4).

2. The parasite detection device according to claim 1, characterized in that: A cotton stalk (6) is inserted into the tube body (1), and salt particles are adhered to the cotton stalk (6).

3. The parasite detection device according to claim 1, characterized in that: The lower end of the shell (3) is provided with an opening, a buckle cover (13) is detachably mounted on the opening at the lower end of the shell (3), a motor (12) is mounted on the lower side of the buckle cover (13), an output shaft of the motor (12) is connected to the lower end of the rotating shaft (11), the upper end of the rotating shaft (11) passes through and extends to the upper side of the buckle cover (13), and a crushing knife (10) is mounted on the upper end of the rotating shaft (11); An annular sleeve (9) is provided in the space between the tube body (1) and the shell (3), and a gap is provided between the annular sleeve (9) and the tube body (1); It also comprises a vertical tube (14) with an open upper end and a closed lower end, wherein one end of the conduit (4) away from the through hole bends downward and enters the vertical tube (14); The buckle cover (13) is mounted on the opening at the lower end of the shell (3), a set weight of sampled meat is weighed and placed in the shell (3), the motor (12) drives the crushing knife (10) to rotate via the rotating shaft (11), the crushing knife (10) grinds the sampled meat in the shell (3), and then the lower end of the tube (1) extends into the shell (3), the cover (2) is mounted on the opening of the shell (3), saturated salt water is added into the tube (1), and the ground meat flows over the semi-permeable membrane (7).

4. The parasite detection device according to claim 3, characterized in that: A cotton stalk (6) is inserted into the tube body (1), and salt particles are adhered to the cotton stalk (6).

5. The parasite detection device according to claim 3, characterized in that: A support rod (8) is fixed to the upper end of the annular sleeve (9); the sum of the height of the support rod (8) and the height of the annular sleeve (9) is equal to the depth of the inner cavity of the shell (3); and the outer peripheral side of the annular sleeve (9) is in contact with the inner wall of the shell (3).

6. A meat slice osmotic pressure difference pretreatment device, applied to the parasite detection device according to any one of claims 1 to 5, characterized in that: It comprises a guide rod (16) and a support frame (19), wherein both ends of the guide rod (16) are provided with protrusions, a plurality of parallel needles (17) are fixed to one end of the guide rod (16), and a sliding slider (15) is installed on the guide rod (16); A metal mesh (18) is installed on the support frame (19).

7. The meat slice osmotic pressure difference pretreatment device according to claim 6, characterized in that: The protrusions at both ends of the guide rod (16) are made of elastic rubber material, wherein the protrusions extend into the tube body (1) and the outer side of the protrusions is sealed and fitted to the inner wall of the tube body (1).

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