Weighing device for porosity testing

Abstract

The application discloses a weighing device for porosity test, which comprises an electronic scale, a container, and a lifting mechanism. The electronic scale comprises a scale body and a weighing disc for placing a measured object. The weighing disc is connected with a weighing sensor. The weighing disc is in communication connection with the scale body to transmit the weighing data of the weighing sensor to the scale body. The container is located below the weighing disc and contains a liquid. The weighing disc is arranged on the lifting mechanism. The lifting mechanism can drive the weighing disc to lift or lower, so that the weighing disc and the measured object can be completely immersed in the liquid in the container or can be lifted and separated from the liquid in the container. The weighing disc weighs the measured object before, during and after soaking, respectively. The weighing device for porosity test can complete the weighing of the dry weight, saturated floating weight and saturated empty weight of the measured object. The measured object can complete the test task without multiple transfer operations, and human interference and test errors are reduced.

Description

Technical Field

[0001] This application relates to the field of electronic weighing, and more particularly to a weighing device for porosity testing. Background Technology

[0002] Porous ceramic atomizing cores, as key components in electronic atomizers for both the atomizing matrix carrier and aerosol generation, directly determine wicking speed, atomization efficiency, and leak-proof performance based on their porosity. Currently, the industry urgently needs precise control over the uniformity of atomizing core porosity and the gradient pore structure. Existing testing methods widely employ Archimedes' water displacement method to detect ceramic porosity; however, this process requires operators to repeatedly transfer the test material, leading to excessive water loss and significant testing errors, which fails to meet production quality control requirements. Utility Model Content

[0003] To address one of the technical problems existing in the prior art, this application provides a weighing device for porosity testing, which can complete the weighing of the dry weight, buoyant weight, and saturated empty weight of the test object throughout the entire process, thereby reducing testing errors.

[0004] A weighing device for porosity testing according to a first aspect of this application includes: an electronic scale, the electronic scale including a scale body and a weighing pan for placing the object to be tested, the weighing pan being connected to a weighing sensor, the weighing pan being communicatively connected to the scale body to transmit the weighing data of the weighing sensor to the scale body, and at least one water passage hole being provided at the bottom of the weighing pan; a container located below the weighing pan, the container containing liquid; and a lifting mechanism, the weighing pan being disposed on the lifting mechanism, the lifting mechanism being capable of driving the weighing pan to move up and down, so that the weighing pan and the object to be tested are lowered to be completely immersed in the liquid in the container, or that the weighing pan and the object to be tested are raised and leave the liquid in the container; wherein, during the process of moving up and down with the lifting mechanism, the weighing pan weighs the object to be tested before, during, and after immersion.

[0005] The weighing apparatus according to the first aspect of this application further includes a vacuuming device and an exhaust pipe, the exhaust pipe being connected between the vacuuming device and the container to evacuate the container after the analyte has descended to be completely submerged in the liquid within the container.

[0006] According to the weighing device provided in the first aspect of this application, the container is a closed container, and the weighing pan and the lifting mechanism are disposed inside the container.

[0007] According to the weighing device provided in the first aspect of this application, the container is provided with an openable window.

[0008] According to the weighing device provided in the first aspect of this application, the container is a semi-enclosed container, a protective cover is provided on the scale body, and a sealed space is formed between the protective cover and the scale body; the container and the weighing pan are disposed in the sealed space, the vacuum device is disposed outside the sealed space, and the exhaust pipe passes through the protective cover.

[0009] According to the weighing device provided in the first aspect of this application, at least a portion of the protective cover is configured to be openable.

[0010] According to the weighing device provided in the first aspect of this application, the scale body is provided with a display screen.

[0011] According to the weighing device provided in the first aspect of this application, at least a portion of the weighing pan is configured as a perforated mesh.

[0012] According to the weighing device provided in the first aspect of this application, the lifting mechanism includes a telescopic bracket, at least a portion of which is disposed inside the container, and the telescopic bracket can extend and retract vertically to drive the weighing pan to rise or fall.

[0013] According to the weighing device provided in the first aspect of this application, one end of the telescopic bracket is connected to the scale body, and the other end of the telescopic bracket is connected to the weighing pan. When the working length of the telescopic bracket is at its minimum, it is less than the height of the container, and when the working length of the telescopic bracket is at its maximum, it is greater than the height of the container.

[0014] According to the weighing device provided in the first aspect of this application, the telescopic bracket is made of stainless steel or polymer material.

[0015] The weighing device for porosity testing provided in this application has the following beneficial effects: The weighing device for porosity testing in this application has a container and a lifting mechanism on the weighing body. The weighing pan is set on the lifting mechanism. The lifting mechanism can drive the weighing pan to rise and fall, so that the weighing pan and the test object are lowered to be completely immersed in the liquid in the container, or so that the weighing pan and the test object are raised and leave the liquid in the container. The dry weight, saturated buoyant weight and saturated empty weight of the test object can be weighed in the whole process. The test object does not need to be transferred multiple times to complete the test task, reducing human interference and test error.

[0016] Other features and advantages of this application will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the application. The objectives and other advantages of this application may be realized and obtained by means of the structures particularly pointed out in the description, claims and drawings. Attached Figure Description

[0017] To more clearly illustrate the technical solution of this application, the following description will be provided in conjunction with the accompanying drawings and embodiments. It should be understood that the following drawings only show some embodiments of this application and should not be considered as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort. In the drawings:

[0018] Figure 1 This is a schematic diagram of the weighing device for porosity testing provided in this application.

[0019] Explanation of icon numbers:

[0020] Electronic scale 100, scale body 110, display screen 111, weighing pan 120, lifting mechanism 200, container 300, vacuum device 400, exhaust pipe 410. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0022] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments. At the same time, the steps or actions in the method description can be rearranged or adjusted in a manner obvious to those skilled in the art. Therefore, the various orders in the specification and drawings are only for the clear description of a particular embodiment and do not imply a necessary order, unless otherwise stated that a particular order must be followed.

[0023] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0024] For porosity testing, a common method is the water displacement method based on Archimedes' principle. First, the sample is accurately dried, and its mass in this state is recorded as m1. Then, the sample is completely immersed in liquid, ensuring that the pores inside are filled with water. The volume of water displaced is then measured as V1. Next, the saturated sample is removed from the water, and its mass is recorded as m2. The porosity is calculated using the formula: porosity = (m2 - m1) / p_water / V1 × 100% (where p_water is the density of water). However, in this process, air bubbles are easily generated when the sample is placed in the water, affecting the measurement results. Furthermore, when the saturated sample is removed from the water and transferred for weighing, water loss can easily occur, affecting the test results. Currently, there is no good way to solve the weighing error caused by water loss during the transfer of the saturated sample.

[0025] The following is in conjunction with the appendix Figure 1 The provided embodiments further illustrate the weighing device for porosity testing proposed in this application.

[0026] Please refer to Figure 1This application provides a weighing device for porosity testing, including an electronic scale 100. The electronic scale 100 includes a scale body 110 and a weighing pan 120 for placing the object to be tested. The weighing pan 120 has at least one water passage hole at its bottom. In some embodiments, the weighing pan 120 can be made of a porous ceramic core. A weighing sensor is connected to the weighing pan 120. The weighing sensor can be located inside or below the weighing pan 120 to weigh the object to be tested placed on the weighing pan 120. In some embodiments, the weighing pan 120 can be connected to the scale body 110 via a data cable to transmit the weighing data of the weighing sensor to the scale body 110. Furthermore, it is conceivable that in other embodiments, the weighing pan 120 can also establish a data connection with the scale body 110 via wireless transmission, which can also transmit the weighing data of the weighing sensor to the scale body 110. A container 300 is mounted on the weighing body 110, located below the weighing pan 120, and contains liquid. The weighing body 110 also has a lifting mechanism 200, on which the weighing pan 120 is mounted. The lifting mechanism 200 can move the weighing pan 120 up and down, allowing it and the object to be measured to descend completely into the liquid within the container 300, or to rise and leave the liquid within the container 300. During this process, the weighing pan 120 can weigh the object before, during, and after immersion. The specific weighing steps are as follows: First, place the dry sample to be tested on the weighing pan 120. At this time, the weighing pan 120 is above the liquid in the container 300 but not immersed in the liquid. The weighing pan 120 weighs the sample before immersion to obtain the dry weight M1 of the sample. Then, start the lifting mechanism 200, which lowers the weighing pan 120 and the sample until they are submerged in the liquid in the container 300. During the process of the weighing pan 120 entering the liquid, the liquid will enter the weighing pan 120 more quickly through the water passage, thus immersing the sample more quickly. When the weighing pan 120 and the sample are completely submerged in the container 300... When the sample is immersed in the liquid in container 300, the weighing pan 120 weighs the sample to obtain the saturated buoyant weight M2 of the sample. Finally, the lifting mechanism 200 is activated again, which lifts the weighing pan 120 and the sample to completely leave the liquid in the container 300. At the same time, the excess liquid carried out by the weighing pan 120 will be quickly discharged through the water passage at the bottom of the weighing pan 120 and fall back into the container 300, so as to avoid excess liquid remaining in the weighing pan 120 and affecting the measurement accuracy of the saturated empty weight M3 of the sample. At this time, the weighing pan 120 weighs the sample after immersion to obtain the saturated empty weight M3 of the sample.The weighing device for porosity testing disclosed in this application includes a container 300 and a lifting mechanism 200 mounted on a weighing body 110. A weighing pan 120 is mounted on the lifting mechanism 200, which can raise and lower the weighing pan 120 and the test object, allowing them to descend into the liquid completely submerged in the container 300, or rise and leave the liquid in the container 300. This weighing device allows for the complete weighing of the dry weight M1, saturated buoyant weight M2, and saturated empty weight M3 of the test object without requiring multiple transfer operations, thus reducing human interference and testing errors. Furthermore, after obtaining the dry weight M1, saturated buoyant weight M2, and saturated empty weight M3 of the test object, the porosity can be calculated using the formula: P = (M3 - M1) / (M3 - M2) * 100%.

[0027] like Figure 1 As shown, in some embodiments, the container 300 is generally configured as a hollow cylinder, preferably a cylindrical shape, and the container 300 is filled with liquid to approximately 3 / 4 of its height. In some embodiments, the liquid is preferably pure water. It is readily understood that the above are some preferred embodiments of this application, and this application does not limit the shape of the container 300 or the type of liquid inside the container 300. Those skilled in the art using other shapes of containers 300 or other types of liquids are all within the scope of protection of this application.

[0028] It is easy to imagine that in some embodiments, the upper part of the container 300 may be provided with a liquid injection hole for adding liquid; at the same time, the bottom of the container 300 or the side wall near the bottom may be provided with a drain hole for draining the liquid in the container 300.

[0029] like Figure 1 As shown, in some embodiments of this application, an exhaust pipe 410 is provided on the upper part of the container 300, and one end of the exhaust pipe 410 is connected to a vacuum pump 400. Further, the vacuum pump 400 is preferably a vacuum pump. During the process of the lifting mechanism 200 driving the weighing pan 120 and the object to be tested to descend, and the object to be tested being immersed in the liquid, the vacuum pump 400 generates negative pressure, and the air inside the container 300 is discharged through the exhaust pipe 410, creating a near-vacuum state inside the container 300. For example, specifically, after the weighing pan 120 and the object to be tested descend and are immersed in the liquid, a vacuum negative pressure treatment is performed for 15 minutes. Then, the saturated buoyant weight M2 of the object to be tested is weighed. This effectively avoids the generation of air bubbles when the weighing pan 120 and the object to be tested enter the liquid, thereby reducing errors and improving measurement accuracy.

[0030] In some embodiments of this application, the container 300 can be a closed container, with the weighing pan 120 and the lifting mechanism 200 disposed inside the container 300. It should be noted that when the container 300 is a closed container, both the lifting mechanism 200 and the weighing pan 120 are disposed inside the container 300. Normally, the weighing pan 120 is located above the liquid surface in the container 300. When the lifting mechanism 200 is activated, it can move the weighing pan 120 up or down, causing it to descend below the liquid surface or rise back above it. Furthermore, to facilitate the placement of the sample, the container 300 is provided with an openable window at the top. It should be noted that by using a closed container, the container 300 can more easily expel all the air from the container 300 when the vacuum device 400 is operating, creating a near-vacuum state inside the container 300.

[0031] like Figure 1 As shown, in some embodiments of this application, the container 300 can also be a semi-enclosed container. Meanwhile, a protective cover 130 is provided on the weighing body 110, forming a sealed space between the protective cover 130 and the weighing body 110. The container 300 and the weighing pan 120 are disposed within this sealed space. It should be noted that when the container 300 is a semi-enclosed container, the lifting mechanism 200 can be disposed inside or outside the container 300 as needed, and the weighing pan 120 is disposed on the lifting mechanism 200. Figure 1 As shown, in some embodiments, the weighing pan 120 is located outside the container 300. A vacuum device 400 is positioned outside the sealed space, and an exhaust pipe 410 passes through the protective cover 130. The protective cover 130 and the weighing body 110 form a sealed space, which better coordinates with the vacuum device 400 to remove air from the sealed space, preventing air bubbles from forming when the weighing pan 120 and the object to be measured enter the liquid. Furthermore, the protective cover 130 further protects the container 300 and the weighing pan 120, reducing the influence of external factors on the weighing process, thereby reducing errors and improving measurement accuracy.

[0032] Furthermore, in some embodiments of this application, the protective cover 130 is made of acrylic material, preferably transparent acrylic material, which can both ensure protective performance and facilitate the operator to observe the entire measurement process.

[0033] like Figure 1 As shown, in some embodiments of this application, at least a portion of the protective cover 130 is configured to be openable, facilitating the placement of the object to be tested into or removed from the sealed space by the operator, and also facilitating maintenance of the lifting mechanism 200 and the container 300. Furthermore, in some embodiments, the protective cover 130 can be completely lifted upwards to open, such as... Figure 1 As shown; in other embodiments, at least one of the left and right side plates and the top plate of the cover 130 can be opened.

[0034] like Figure 1 As shown, in some embodiments of this application, the weighing body 110 is provided with a display screen 111. The display screen 111 is used to display the results of the weighing pan 120 weighing the object to be measured. That is, during the weighing process, the dry weight M1, saturated buoyant weight M2 and saturated empty weight M3 of the object to be measured will be displayed on the display screen 111 respectively, which is convenient for the operator to record.

[0035] like Figure 1 As shown, in some embodiments of this application, at least a portion of the weighing pan 120 is configured as a perforated mesh. Configuring the weighing pan 120 as a perforated mesh allows liquid to enter or exit the weighing pan 120 more quickly, thereby accelerating the measurement process.

[0036] like Figure 1 As shown, in some embodiments of this application, the lifting mechanism 200 includes a telescopic bracket, at least a portion of which is disposed within the container 300. The telescopic bracket can extend and retract vertically to raise or lower the weighing pan 120. Further, in some embodiments, one end of the telescopic bracket is connected to the weighing body 110, and the other end is connected to the weighing pan 120. The minimum working length of the telescopic bracket is less than the height of the container 300, allowing the weighing pan 120 to be easily immersed in the liquid. The maximum working length of the telescopic bracket is greater than the height of the container 300, ensuring that the weighing pan 120 can be completely detached from the liquid within the container 300. Further, in some embodiments of this application, the telescopic bracket can be made of stainless steel or polymer material, and is preferably tubular, forming a hollow channel inside the telescopic bracket for the data cable of the weighing pan 120 to pass through.

[0037] It is understood that the above embodiments only illustrate preferred embodiments of this application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this application. It should be noted that, for those skilled in the art, without departing from the concept of this application, the above technical features can be freely combined, and several modifications and improvements can be made, all of which fall within the protection scope of this application. Therefore, all equivalent transformations and modifications made within the scope of the claims of this application should fall within the coverage of the claims of this application.

Claims

1. A weighing device for porosity testing, characterized in that, include: An electronic scale, comprising a scale body and a weighing pan for placing an object to be measured, the weighing pan being connected to a weighing sensor, the weighing pan being communicatively connected to the scale body to transmit the weighing data of the weighing sensor to the scale body, and at least one water passage hole being provided at the bottom of the weighing pan. A container located below the weighing pan, the container containing liquid; A lifting mechanism is provided, wherein the weighing pan is mounted on the lifting mechanism, and the lifting mechanism can drive the weighing pan to move up and down, so that the weighing pan and the object to be tested are lowered to be completely immersed in the liquid in the container, or so that the weighing pan and the object to be tested are raised and leave the liquid in the container. The weighing pan can weigh the test object before, during, and after immersion as it moves up and down with the lifting mechanism.

2. The weighing device for porosity testing as described in claim 1, characterized in that, It also includes a vacuuming device and an exhaust pipe, the exhaust pipe being connected between the vacuuming device and the container to evacuate the container after the test object has descended to be completely submerged in the liquid inside the container.

3. The weighing device for porosity testing as described in claim 2, characterized in that, The container is a closed container, and the weighing pan and the lifting mechanism are located inside the container.

4. The weighing device for porosity testing as described in claim 3, characterized in that, The container is equipped with an openable window or door at the top.

5. The weighing device for porosity testing as described in claim 2, characterized in that, The container is a semi-enclosed container, and a protective cover is provided on the scale body, forming a sealed space between the protective cover and the scale body; The container and the weighing pan are disposed within the sealed space, the vacuum device is disposed outside the sealed space, and the exhaust pipe passes through the protective cover.

6. The weighing device for porosity testing as described in claim 5, characterized in that, At least a portion of the shield is configured to be openable.

7. The weighing device for porosity testing as described in claim 1, characterized in that, The scale is equipped with a display screen.

8. The weighing device for porosity testing as described in claim 1, characterized in that, At least a portion of the weighing pan is configured as a perforated mesh.

9. The weighing device for porosity testing as described in claim 1, characterized in that, The lifting mechanism includes a telescopic support, at least a portion of which is disposed inside the container. The telescopic support can extend and retract vertically to raise or lower the weighing pan.

10. The weighing device for porosity testing as described in claim 9, characterized in that, One end of the telescopic bracket is connected to the scale body, and the other end of the telescopic bracket is connected to the weighing pan. When the working length of the telescopic bracket is at its minimum, it is less than the height of the container, and when the working length of the telescopic bracket is at its maximum, it is greater than the height of the container.

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