A multi-layer membrane negative pressure rapid filtration device for food testing samples

Abstract

This utility model relates to the field of food testing technology and discloses a multi-layer membrane negative pressure rapid filtration device for food testing samples, including a first filter cylinder and a second filter cylinder. The second filter cylinder has a multi-layer membrane body arranged inside, and the output end of the drive motor is connected to a stirring shaft. This utility model fixes a support plate on both sides of the inner wall of the first filter cylinder, and a second positioning column is fixed on the top of the support plate. A second filter plate is assembled above the support plate. Therefore, during operation, the material first passes through multiple layers of filtration within the multi-layer membrane body. This process can be aided by a negative pressure pump to provide a negative pressure environment, thus forming a multi-layer membrane negative pressure filtration. The first and second filter cylinders can be connected and assembled on both sides using connecting plates. During assembly, fixing bolts are used to connect and fix the first filter cylinder to the connecting plate and the connecting plate to the second filter cylinder, thereby improving the connection and assembly capability during operation.

Description

Technical Field

[0001] This utility model relates to the field of food testing technology, specifically a multi-layer membrane negative pressure rapid filtration device for food testing samples. Background Technology

[0002] Food testing is a discipline that studies and evaluates the quality of food and its changes. Based on some basic theories of physics, chemistry, and biochemistry and various technologies, it inspects the quality of food raw materials, auxiliary materials, semi-finished products, finished products and by-products in accordance with established technical standards, such as international and national food hygiene / safety standards, to ensure that the products are of qualified quality.

[0003] Therefore, in the process of food testing, food samples are generally tested. In order to remove interfering substances and improve the detection sensitivity, it is necessary to filter the food test samples. This requires the use of a corresponding rapid food test sample filtration device. Multiple filter cartridges are often needed during filtration. If the connection between the two is not proper, it is easy to apply extra pressure to the connecting tube in the middle, affecting the service life. Utility Model Content

[0004] The purpose of this invention is to provide a multi-layer membrane negative pressure food sample rapid filtration device to solve the problem mentioned in the background art that multiple filter cartridges are often required during filtration, and if the connection between the two is not proper, it is easy to apply additional pressure to the connecting tube in the middle, affecting the service life.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-layer membrane negative pressure food sample rapid filtration device, comprising a first filter cylinder and a second filter cylinder, wherein a multi-layer membrane body is arranged inside the second filter cylinder, a negative pressure pump is installed at the upper left side of the second filter cylinder, connecting plates are installed on both sides of the first and second filter cylinders, the connecting plates have mounting holes, and fixing bolts are connected and installed in the mounting holes, mounting brackets are fixed at the lower sides of the first filter cylinders, and drive motors are mounted on the mounting brackets, the output end of the drive motors is driven and connected to a stirring shaft.

[0006] As a further technical solution of this utility model, the connecting plates are symmetrically distributed about the central axis of the first filter cylinder, and the fixing bolts and mounting holes are locked together by threads.

[0007] As a further technical solution of this utility model, a discharge port is connected to the bottom of the first filter cylinder, and a connecting pipe is connected between the first filter cylinder and the second filter cylinder.

[0008] As a further technical solution of this utility model, the top of the second filter cylinder is connected to a feed inlet, and the top two sides of the feed inlet are fixed with first positioning posts, and the feed inlet is equipped with a first filter plate.

[0009] As a further technical solution of this utility model, through holes for the first positioning post to pass through are provided on both sides of the first filter plate, and a first nut is connected to the outer position of the first positioning post.

[0010] As a further technical solution of this utility model, an external threaded end is fixed at the upper position of the outer side of the first positioning post, and a threaded connection is formed between the external threaded end and the first nut.

[0011] As a further technical solution of this utility model, a bearing plate is fixed on both sides of the inner wall of the first filter cylinder, and a second positioning column is fixed on the top of the bearing plate. A second filter plate is assembled above the bearing plate.

[0012] As a further technical solution of this utility model, the second filter plate has reserved holes on both sides, and the second positioning post is externally threaded with a second nut.

[0013] Compared with the prior art, the beneficial effects of this utility model are: this multi-layer membrane negative pressure food testing sample rapid filtration device not only improves the connection capability, but also improves the feeding filtration capability and homogenization capability of the food testing sample rapid filtration device.

[0014] (1) By fixing the bearing plates on both sides of the inner wall of the first filter cylinder, and fixing the second positioning column on the top of the bearing plate, the second filter plate is assembled above the bearing plate. Therefore, the second filter plate is assembled, and the second positioning column is positioned by passing through the reserved hole. Then, the position is locked by the second nut. Therefore, during operation, the material first passes through the multi-layer membrane body for multi-layer filtration. This process can be provided by the negative pressure pump to form a multi-layer membrane negative pressure filtration. Then, the material is introduced into the first filter cylinder through the connecting pipe. The two sides of the first filter cylinder and the second filter cylinder can be connected and assembled by the connecting plate. During assembly, the first filter cylinder and the connecting plate and the connecting plate and the second filter cylinder are connected and fixed by the fixing bolts respectively. This improves the connection and assembly capability during operation.

[0015] (2) By installing and fixing the first positioning post on both sides of the top of the feed inlet, through holes are opened in both sides of the first filter plate for the first positioning post to pass through. During assembly, the first positioning post can pass through the through hole and then be locked in place by the first nut on the outside of the first positioning post. This completes the assembly of the first filter plate and facilitates the filtration work during feeding.

[0016] (3) By fixing mounting brackets on both sides of the first filter tube, the mounting brackets are used to support the drive motor. Therefore, after the drive motor is working, it can drive the stirring shaft to rotate. Thus, with the assembly of the left and right stirring shafts, a certain homogenization process can be carried out, thereby improving the uniformity of the sample after filtration and facilitating subsequent detection work. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 2 This is a partial frontal cross-sectional view of the feed inlet of this utility model;

[0019] Figure 3 This is a front view cross-sectional structural diagram of the connecting plate of this utility model;

[0020] Figure 4 For the present utility model Figure 1 Enlarged cross-sectional view of point A in the middle.

[0021] In the diagram: 1. First filter cylinder; 2. Discharge port; 3. Stirring shaft; 4. Drive motor; 5. Connecting plate; 6. Connecting pipe; 7. Second filter cylinder; 8. Multilayer membrane body; 9. Feed inlet; 10. Negative pressure pump; 11. First filter plate; 12. First positioning post; 13. First nut; 14. Fixing bolt; 15. Second filter plate; 16. Reserved hole; 17. Second positioning post; 18. Second nut. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 An embodiment of this utility model provides a multi-layer membrane negative pressure rapid filtration device for food testing samples, including a first filter cylinder 1 and a second filter cylinder 7. The second filter cylinder 7 has a multi-layer membrane body 8 arranged inside. A negative pressure pump 10 is installed at the upper left side of the second filter cylinder 7. Connecting plates 5 are installed on both sides of the first filter cylinder 1 and the second filter cylinder 7. The connecting plates 5 have mounting holes, and fixing bolts 14 are connected and installed in the mounting holes. Mounting brackets are fixed at the lower sides of the first filter cylinder 1. A drive motor 4 is installed on the mounting brackets. The output end of the drive motor 4 is connected to a stirring shaft 3.

[0024] The connecting plates 5 are symmetrically distributed about the central axis of the first filter cylinder 1, and the fixing bolts 14 are threaded together with the mounting holes.

[0025] The bottom of the first filter cylinder 1 is connected to the discharge port 2, and a connecting pipe 6 is connected between the first filter cylinder 1 and the second filter cylinder 7.

[0026] The top of the second filter cylinder 7 is connected to the feed inlet 9, and the top two sides of the feed inlet 9 are fixed with the first positioning posts 12. The feed inlet 9 is equipped with the first filter plate 11.

[0027] The first filter plate 11 has through holes on both sides for the first positioning post 12 to pass through, and the first positioning post 12 is connected to the outer position of the first nut 13.

[0028] The first positioning post 12 has an external threaded end fixed at the upper part of its outer side, and the external threaded end forms a threaded connection with the first nut 13.

[0029] The inner walls of the first filter cylinder 1 are fixed with bearing plates on both sides, and the top of the bearing plate is fixed with a second positioning post 17. The second filter plate 15 is assembled above the bearing plate.

[0030] The second filter plate 15 has reserved holes 16 on both sides, and the second positioning post 17 is externally threaded with a second nut 18.

[0031] After the drive motor 4 is started, it drives the stirring shaft 3 to rotate. The stirring shaft 3 is equipped with necessary fan blades, so the fan blades can be used to complete the corresponding stirring work during the rotation.

[0032] Working principle: First, during operation, the first positioning post 12 passes through the through hole, and the first nut 13 is used to lock the position of the first positioning post 12, thereby completing the assembly of the first filter plate 11. When feeding at the feed inlet 9, the material first passes through the first filter plate 11 for filtration and then reaches the interior of the second filter cylinder 7. The material first passes through multiple layers of filtration in the multi-layer membrane body 8. This process can be supported by the negative pressure pump 10 to provide a negative pressure environment, thereby forming a multi-layer membrane negative pressure filtration. Then, the material is introduced into the first filter cylinder 1 through the connecting pipe 6. Mounting brackets are fixed on both sides of the first filter cylinder 1. The mounting brackets are used to support the drive motor 4. Therefore, after the drive motor 4 is started, it drives the stirring shaft 3 to rotate. Under the assembly of the left and right stirring shafts 3, a certain homogenization process is carried out. The homogenized material is discharged at the discharge port 2.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A multi-layer membrane negative pressure rapid filtration device for food testing samples, comprising a first filter cartridge (1) and a second filter cartridge (7), characterized in that: The second filter cylinder (7) has a multi-layer membrane body (8) arranged inside. A negative pressure pump (10) is installed on the upper left side of the second filter cylinder (7). A connecting plate (5) is installed on both sides of the first filter cylinder (1) and the second filter cylinder (7). The connecting plate (5) has a mounting hole, and a fixing bolt (14) is connected and installed in the mounting hole. A mounting bracket is fixed on both sides of the first filter cylinder (1) at the lower position. A drive motor (4) is installed on the mounting bracket. The output end of the drive motor (4) is connected to a stirring shaft (3).

2. The multilayer membrane negative pressure rapid filtration device for food testing samples according to claim 1, characterized in that: The connecting plate (5) is symmetrically distributed about the central axis of the first filter cylinder (1), and the fixing bolt (14) is threadedly locked with the mounting hole.

3. The multilayer membrane negative pressure rapid filtration device for food testing samples according to claim 1, characterized in that: The bottom of the first filter cylinder (1) is connected to a discharge port (2), and a connecting pipe (6) is connected between the first filter cylinder (1) and the second filter cylinder (7).

4. The multilayer membrane negative pressure rapid filtration device for food testing samples according to claim 1, characterized in that: The top of the second filter cylinder (7) is connected to a feed inlet (9), and the top two sides of the feed inlet (9) are fixed with first positioning posts (12), and the top of the feed inlet (9) is equipped with a first filter plate (11).

5. The multilayer membrane negative pressure rapid filtration device for food testing samples according to claim 4, characterized in that: The first filter plate (11) has through holes on both sides for the first positioning post (12) to pass through, and the first positioning post (12) is connected to the outer position of the first nut (13).

6. The multilayer membrane negative pressure rapid filtration device for food testing samples according to claim 5, characterized in that: The first positioning post (12) has an external threaded end fixed at the upper part of its outer side, and the external threaded end forms a threaded connection with the first nut (13).

7. The multilayer membrane negative pressure rapid filtration device for food testing samples according to claim 1, characterized in that: The first filter cylinder (1) has a bearing plate fixed on both sides of its inner wall, and a second positioning post (17) is fixed on the top of the bearing plate. A second filter plate (15) is assembled above the bearing plate.

8. The multilayer membrane negative pressure rapid filtration device for food testing samples according to claim 7, characterized in that: The second filter plate (15) has reserved holes (16) on both sides, and the second positioning post (17) is externally threaded with a second nut (18).

Images