Device for measuring oxygen uptake of oxygen absorbent

Abstract

The utility model discloses a device for measuring the oxygen uptake amount of an oxygen absorbent, which belongs to the technical field of oxygen absorbent performance detection, and comprises a container with a top opening; the partition piece is arranged in the container and divides the container into more than two mutually independent compartments; the storage devices are arranged in the compartments and are used for bearing oxygen absorbents; the cover can seal the top opening of the container, and through holes are formed in the areas, corresponding to the compartments, of the cover; the measuring cylinder is used for loading liquid; one end of the conduit extends into the measuring cylinder, and the other end of the conduit extends into the compartment of the container through the through hole of the cover. The device disclosed by the utility model can be used for simultaneously measuring a plurality of oxygen absorbents with the same model under almost the same condition, and by averaging detection results, random errors can be reduced, and the confidence coefficient of the measurement results can be improved. In addition, the measuring cylinder does not need to be inversely buckled, the whole detection process is simpler, and the detection result is more visual.

Description

Technical Field

[0001] This utility model relates to the field of oxygen absorber performance testing technology, and more specifically, to a device for determining the oxygen absorption capacity of an oxygen absorber. Background Technology

[0002] Oxygen absorbers are additives that can absorb oxygen and slow down the oxidation of food. They are widely used in food preservation, and the oxygen absorption capacity of oxygen absorbers is an important indicator for evaluating their performance.

[0003] Chinese invention patent application CN112098259A discloses an oxygen absorber oxygen absorption performance testing device and method. The device includes an electronic balance, a reaction container, a water collection container, and a water tank. The reaction container and the water collection container are placed on the testing platform of the electronic balance. The openings of both the reaction container and the water collection container are sealed with plugs. The reaction container and the water collection container are internally connected. The water collection container is connected to the water tank via a capillary tube. The water tank contains clean water, and the end of the capillary tube extends below the surface of the water. This type of oxygen absorber oxygen absorption capacity testing device has the following problems during use: 1. Randomly testing only one sample of the same batch of oxygen absorbers or testing multiple samples under different conditions can lead to significant errors in the test results; 2. Because the capillary tube is in contact with the liquid surface and water is present in the capillary tube during the measurement process, the test results obtained by measuring the oxygen absorption capacity of the oxygen absorber using the electronic balance to measure its mass are not accurate.

[0004] In addition, existing technologies also include the following method for measuring the oxygen absorption capacity of oxygen absorbers: A graduated cylinder of appropriate range is placed on a perforated flat plate and inverted into a container filled with liquid. A metal strip supporting the oxygen absorber is placed in the container. The volume of liquid rising in the graduated cylinder is then considered equivalent to the amount of oxygen absorbed by the oxygen absorber from the confined space. This method has the following problems: firstly, it can only measure one sample of oxygen absorber at a time; secondly, because the liquid is drawn into the inverted graduated cylinder before measurement, the liquid level needs to be adjusted to be level with the zero mark of the graduated cylinder before measurement. Since the container's volume is generally much larger than the graduated cylinder, this adjustment is quite cumbersome. Utility Model Content

[0005] The purpose of this invention is to overcome the problems of large errors in the detection of oxygen absorbers in the prior art and the need to invert the measuring cylinder for detection, and to provide a device for measuring the oxygen absorption capacity of an oxygen absorber.

[0006] The device for measuring the oxygen absorption capacity of an oxygen absorber according to this invention includes: a container having an open top; a partition disposed within the container, the partition being configured to divide the container into two or more independent compartments; a container disposed within each compartment for holding the oxygen absorber; a lid capable of sealing the open top of the container, the lid having through holes at areas corresponding to each compartment; a measuring cylinder for holding liquid; and a conduit for connecting the compartments and the measuring cylinder, one end of the conduit extending into the measuring cylinder and the other end extending into the compartment of the container through the through hole in the lid.

[0007] As a preferred embodiment of the above technical solution, the partition includes: a pivot extending from the bottom of the container to the top opening and flush with the plane of the top opening; two or more partitions, one side of each partition being connected to the pivot, and the other side and bottom side abutting against the side and bottom of the container respectively, and the top edge of each partition contacting the lid when the lid forms a seal against the top opening of the container.

[0008] As an improvement to the above technical solution, one side of the partition is pivotally connected to the pivot, so that the partition can pivot freely relative to the pivot.

[0009] The device for measuring the oxygen absorption capacity of an oxygen absorber according to this invention preferably further includes a support frame and a support platform, wherein the support platform is fixed on the support frame and is used to place the container.

[0010] As a more specific embodiment of the above technical solution, the support frame includes a base and a support rod, the support rod being fixedly connected to the base; the support platform is fixed to the support rod by a knob, so that the support platform can be fixed at different positions on the support rod by the knob.

[0011] Preferably, the container of the device for measuring the oxygen absorption capacity of an oxygen absorber of the present invention has a sealing ring on the inner side of the top opening.

[0012] Preferably, the inner side of one or more through holes of the cover of the device for measuring the oxygen absorption of an oxygen absorber is provided with a sealing ring.

[0013] Preferably, in the device for measuring the oxygen absorption of an oxygen absorber according to the present invention, one or more partitions of the partition are provided with sealing strips on three sides other than the side connected to the pivot.

[0014] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0015] 1. The device for determining the oxygen absorption capacity of oxygen absorbers of this utility model can simultaneously measure several samples of the same type of oxygen absorber under almost identical conditions. By averaging the test results, random errors can be reduced and the confidence of the measurement results can be improved.

[0016] 2. The measuring cylinder of the device for measuring the oxygen absorption capacity of the oxygen absorber does not need to be inverted. Therefore, when the negative pressure caused by the oxygen absorber absorbing oxygen draws the liquid out of the measuring cylinder, the oxygen absorption capacity of the oxygen absorber can be obtained by directly reading the scale of the liquid level difference of the measuring cylinder. The whole process is simpler and the test results are more intuitive.

[0017] 3. The device of this utility model for measuring the oxygen absorption capacity of oxygen absorbers can control the size of the compartment by adjusting the opening and closing degree of the partition, thereby adapting to the measurement of different types of oxygen absorbers. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of one embodiment of the device for measuring the oxygen absorption capacity of an oxygen absorber according to the present invention;

[0019] Figure 2 This is a schematic diagram of another embodiment of the device for measuring the oxygen absorption capacity of an oxygen absorber according to the present invention;

[0020] Figure 3 for Figure 2 A schematic diagram of the separator of a device used to measure the oxygen absorption capacity of an oxygen absorber.

[0021] Explanation of the labels in the diagram:

[0022] 1. Container; 2. Measuring cylinder; 3. Guide tube; 4. Lid; 5. Support frame; 51. Base; 52. Support platform; 53. Support rod; 54. Knob; 6. Divider; 61. Pivot; 62. Partition; 63. Sealing strip; 7. Sealing ring; 8. Storage container. Detailed Implementation

[0023] In the embodiments shown in the accompanying drawings, the directional indications (such as up, down, left, right, front, and back) used to explain the structure and movement of the various components of this application are relative rather than absolute. These descriptions are appropriate when these components are in the positions shown in the drawings. If the descriptions of the positions of these components change, these directional indications also change accordingly.

[0024] See Figure 1 , Figure 1This is a schematic diagram of one embodiment of the device for determining the oxygen absorption capacity of an oxygen absorber according to the present invention. The device includes: a container 1 with an open top; a partition 6 disposed within the container 1, configured to divide the container 1 into two or more independent compartments; a container 8 disposed within each compartment for holding the oxygen absorber; a lid 4 capable of sealing the open top of the container 1, with through holes on the lid 4 corresponding to the areas of each compartment; a measuring cylinder 2 for holding liquid; and a conduit 3 for connecting the compartments and the measuring cylinder 2, one end of the conduit 3 extending into the measuring cylinder 2, and the other end extending into the compartment of the container 1 through the through hole of the lid 4. With this device, several samples of the same type of oxygen absorber can be measured simultaneously in the compartments under almost identical conditions. By averaging the test results, random errors can be reduced, and the confidence level of the measurement results can be improved.

[0025] In addition, compared with the existing technology, since the measuring cylinder 2 does not need to be inverted, it is more convenient to add liquid to the measuring cylinder 2 to the zero mark. On the other hand, the liquid in the measuring cylinder 2 can be drawn out by the negative pressure caused by the oxygen absorbed by the oxygen absorber in the compartment. The tester can directly read the scale of the liquid level difference in the measuring cylinder 2 to obtain the amount of oxygen absorbed by the oxygen absorber, making the whole process simpler and the test results more intuitive.

[0026] In one embodiment of this invention, the lid 4 can be threadedly connected to the container 1 to seal the top opening of the container 1. In another embodiment of this invention, a sealing ring 7 can be provided on the inner side of the top opening of the container 1 to help the lid 4 seal the top opening of the container 1. In one embodiment of this invention, a sealing ring 7 can be provided on the inner side of one or more through holes on the lid 4 to ensure that the conduit 3 and the through hole are airtight.

[0027] like Figure 1 and Figure 2 As shown, in one embodiment of the present invention, the partition 6 of the device for measuring the oxygen absorption capacity of an oxygen absorber includes: a pivot 61 extending from the bottom of the container 1 to the top opening and flush with the plane of the top opening; two or more partitions 62, one side of each partition 62 connected to the pivot 61, and the other side and bottom side abutting against the side and bottom surfaces of the container 1 respectively, and the top edge of each partition 62 contacting the lid 4 when the lid 4 forms a seal against the top opening of the container 1. Figure 3 The structure of the separator 6 is shown more clearly in the image. This separator 6 can divide the container 1 into several compartments of the same size, which helps to provide equal conditions for testing several samples of the same type of oxygen absorber.

[0028] See Figure 2 , Figure 2This is a schematic diagram of another embodiment of the apparatus of the present invention for determining the oxygen absorption capacity of an oxygen absorber. In this embodiment, one side of the partition 62 is pivotally connected to the pivot 61, allowing the partition 62 to pivot freely relative to the pivot 61. With this configuration, the opening degree of the partition 62 can be adjusted by pivoting it relative to the pivot 61 to control the size of the compartment, thereby adapting to the measurement of different types of oxygen absorbers. This configuration is advantageous because, for example, an oxygen absorber with an oxygen absorption capacity of 50 ml requires more than 250 ml of space, while an oxygen absorber with an oxygen absorption capacity of 200 ml requires more than 1000 ml of space. By pivoting the partition 62 to adjust the size of the compartment, the apparatus of the present invention can detect a wider range of oxygen absorbers.

[0029] In various embodiments of this utility model, the container 1 is preferably a cylindrical container 1, which facilitates the separation of the container 1 by pivoting the partition 62. Furthermore, the container 1 is preferably made of a transparent material such as glass to allow observation of the contents. Additionally, the partition 62 can be made of plastic, wood, or metal. Moreover, the holder 8 can be mounted on the partition 62 in the separator 6 by means of, for example, adhesive, bolting, or snap-fit ​​connections. The holder 8 has an open structure to allow the oxygen absorber to fully contact the air, and it can be made of plastic.

[0030] In various embodiments of this invention, the partition 6 of the apparatus for measuring the oxygen absorption capacity of an oxygen absorber has sealing strips 63 on three sides of the partition plate 62, excluding the side connected to the pivot 61. This configuration ensures that each compartment of the container 1 separated by the partition 6 has good airtightness, and this airtightness is maintained even after the pivot partition 62 is opened and closed at various angles, resulting in higher confidence in the final test results.

[0031] In various embodiments of this utility model, the device for measuring the oxygen absorption capacity of an oxygen absorber further includes a support frame 5 and a support platform 52. The support platform 52 is fixed on the support frame 5 and is used to place the container 1. Since there is generally a height difference between the container 1 and the measuring cylinder 2, the support platform 52 of the support frame 5 can compensate for this height difference to avoid unfavorable situations. Specifically, when the height of the container 1 is less than the height of the measuring cylinder 2, the tube 3 inserted into the measuring cylinder 2 may be too close to the liquid surface due to this height difference, resulting in a negative pressure in the container 1. When the liquid in the measuring cylinder 2 is drawn through the tube 3, the liquid corresponding to the negative pressure cannot be drawn.

[0032] In one embodiment of this utility model, the support frame 5 includes a base 51 and a support rod 53, with the support rod 53 fixedly connected to the base 51; a support platform 52 is fixed to the support rod 53 via a knob 54, allowing the support platform 52 to be fixed at different positions on the support rod 53. This configuration allows for flexible adjustment of the height of the support platform 52, thus accommodating a wider range of height differences between the container 1 and the measuring cylinder 2.

[0033] The present application and its embodiments have been described above illustratively. This description is not restrictive, and the accompanying drawings are only one embodiment of the present application. The actual structure is not limited to this. Therefore, if a person skilled in the art is inspired by this description and designs a similar structure and embodiment without departing from the spirit of the present application, such design should fall within the protection scope of the present application.

Claims

1. A device for measuring the oxygen uptake of an oxygen uptake agent, characterized in that The application relates to a container (1) with a top opening, a partition (6) arranged in the container (1) and configured to divide the container (1) into two or more independent compartments, a rack (8) arranged in each compartment for carrying an oxygen inhalation agent, a cover (4) capable of sealing the top opening of the container (1) and provided with one or more through holes corresponding to the compartments, a measuring cylinder (2) for loading liquid, and a conduit (3) for connecting the compartments and the measuring cylinder (2). The partition (6) comprises a pivot (61) extending from the bottom of the container (1) to the top opening and flush with the plane of the top opening, and two or more partitions (62) with one side connected to the pivot (61), the other side and the bottom abutting the side and the bottom of the container (1), and the top of the partition (62) in contact with the cover (4) when the cover (4) seals the top opening of the container (1). One side of the partition (62) is pivotally connected to the pivot (61), so that the partition (62) can freely pivot relative to the pivot (61). The support frame (5) comprises a base (51) and a support rod (53) fixedly connected to the base (51), and the support table (52) is fixed to the support rod (53) by a knob (54) so that the support table (52) can be fixed at different positions of the support rod (53) by the knob (54). The inside of the top opening is provided with a sealing ring (7). The inside of the one or more through holes is provided with a sealing ring (7). The three edges of the one or more partitions (62) except the side connected to the pivot (61) are provided with sealing strips (63).

2. The device for measuring the oxygen absorbing amount of an oxygen absorber according to claim 1, characterized by ​ ​ ​ 3. The device for measuring the oxygen absorbing amount of an oxygen absorber according to claim 2, characterized by ​ 4. The device for measuring the oxygen absorbing amount of an oxygen absorber according to any one of claims 1 to 3, characterized by ​ 5. The device for measuring the oxygen absorbing amount of an oxygen absorber according to claim 4, wherein ​ 6. The device for measuring the oxygen absorbing amount of an oxygen absorber according to any one of claims 2 to 3, characterized by, ​ 7. The device for measuring the oxygen absorbing amount of an oxygen absorber according to any one of claims 1 to 3, characterized by ​ 8. The device for measuring the oxygen absorbing amount of an oxygen absorber according to any one of claims 1 to 3, characterized by, ​ 9. The device for measuring the oxygen absorbing amount of an oxygen absorber according to any one of claims 2 to 3, characterized by, ​

Images