Permeability coefficient measuring instrument

Abstract

The utility model relates to a permeability coefficient measuring instrument which comprises a base, an outer-layer sealing ring arranged at the bottom of the base, a sealing soft rubber ring arranged at the bottom of the base and located in the outer-layer sealing ring and a water storage cylinder arranged on the base, the base is provided with a first through hole, and the water storage cylinder penetrates through the first through hole. An opening and closing valve is arranged at the bottom of the water storage cylinder, and liquid flowing out of the opening and closing valve enters an inner ring of the sealing soft rubber ring. The utility model provides a permeability coefficient measuring instrument which is provided with a double-sealing structure, namely an outer-layer sealing ring and a sealing soft rubber ring, so that two sealing defense lines can be formed between the measuring instrument and the surface of a measured object, liquid is effectively prevented from leaking out from the outer edge of the measuring instrument, and the accuracy of permeability coefficient measurement is ensured.

Description

Technical Field

[0001] This utility model relates to the field of permeability coefficient measurement, and more specifically, to a permeability coefficient measuring instrument. Background Technology

[0002] In the current field of engineering surveying, traditional permeability measuring instruments have revealed some prominent problems in practical use. Among these, the cumbersome installation and fixing process is particularly evident, typically requiring the application of large amounts of sealant to achieve a seal. This operation not only consumes significant time and labor costs but also demands a high level of skill from the operator; even slight errors can compromise the sealing effect.

[0003] Meanwhile, although some measuring instruments with built-in sealing structures have appeared on the market, simplifying the operation process to some extent, the sealing performance of these instruments is still unsatisfactory. Due to insufficient sealing, liquid leakage is prone to occur during the measurement process, thus interfering with the accuracy of the measurement data and making it difficult for the measurement results to truly reflect the water permeability of the tested material. Therefore, there is an urgent need to improve existing water permeability measuring instruments to solve these long-standing problems that have plagued the industry. Utility Model Content

[0004] In view of this, the present invention provides a permeability coefficient measuring instrument with a double sealing structure, namely an outer sealing ring and a sealing soft rubber ring, which can form two sealing defenses between the measuring instrument and the surface of the object being measured, effectively preventing liquid from leaking out from the outer edge of the measuring instrument and ensuring the accuracy of the permeability coefficient measurement.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A permeability coefficient measuring instrument includes a base, an outer sealing ring disposed at the bottom of the base, a sealing soft rubber ring disposed at the bottom of the base and located inside the outer sealing ring, and a water storage cylinder disposed on the base. The base has a first through hole, the water storage cylinder passes through the first through hole, and an on / off valve is provided at the bottom of the water storage cylinder, through which liquid flowing out enters the inner ring of the sealing soft rubber ring.

[0007] It features a dual-sealing structure, consisting of an outer sealing ring and a sealing soft rubber ring, which forms two lines of defense between the measuring instrument and the surface of the object being measured. This effectively prevents liquid from leaking out from the outer edge of the measuring instrument, ensuring the accuracy of the permeability coefficient measurement.

[0008] The outer sealing ring at the bottom of the base forms the first line of defense between the measuring instrument and the surface of the object being measured, effectively preventing liquid leakage from the outer edge of the measuring instrument. This is crucial for ensuring the accuracy of liquid flow direction and flow rate during measurement. Accurately controlling the liquid flow path is a prerequisite for obtaining precise measurement results when measuring permeability. The outer sealing ring acts like a sturdy dam, firmly confining the liquid within the specific area of ​​contact between the measuring instrument and the object, avoiding measurement errors caused by liquid leakage and greatly improving the reliability of the measurement data.

[0009] The sealing soft rubber ring located inside the outer sealing ring further enhances the sealing performance of the measuring instrument. The sealing soft rubber ring is soft and highly elastic, allowing it to tightly conform to the surface of the object being measured. Even if the surface of the object has some unevenness, the sealing soft rubber ring can fill the gaps through its own deformation, achieving a perfect seal. This excellent sealing effect not only prevents liquid from leaking from the contact interface between the measuring instrument and the object being measured, but also ensures that all liquid flowing out from the opening and closing valve enters the inner ring of the sealing soft rubber ring, precisely acting on the area where the permeability coefficient needs to be measured. This minimizes the interference of external factors on the measurement results, making the measurement results more accurate and reliable.

[0010] The design of the water storage cylinder passing through the first through hole on the base makes the installation of the water storage cylinder more stable, less prone to shaking or displacement, ensuring the stability of the water storage cylinder during the measurement process. It also provides a smooth channel for liquid delivery, allowing the liquid in the storage cylinder to smoothly pass through the first through hole and reach the inner ring of the sealing rubber ring below. This structural design reduces obstruction during liquid transmission, improves the efficiency of liquid flow, and thus shortens the measurement time, improving the overall efficiency of the measurement work. The on / off valve can precisely control the outflow rate and time of the liquid. Before measurement begins, the on / off valve can be closed to safely store the liquid in the water storage cylinder, preventing premature leakage from affecting the measurement. When measurement is required, simply open the on / off valve accurately according to the measurement requirements, releasing an appropriate amount of liquid into the inner ring of the sealing rubber ring. This precise flow control function makes the measurement process more scientific and standardized, meeting the precise liquid volume requirements in different measurement scenarios, further improving the accuracy and repeatability of permeability coefficient measurement.

[0011] Preferably, the cross-section of the sealing rubber ring is wavy.

[0012] The sealing rubber ring features a wavy cross-section, which provides excellent elasticity and cushioning, allowing for easier height changes while maintaining a good seal. The wavy structure acts like a series of tiny springs, elastically deforming under pressure to absorb and disperse external forces. This not only helps protect the sealing rubber ring from excessive compression and extends its lifespan but also reduces the risk of damage to the surface of the object being measured due to external impacts.

[0013] Preferably, there is a gap between the sealing rubber ring and the outer sealing ring.

[0014] The gap between the sealing rubber ring and the outer sealing ring provides a buffer space, enhancing the adaptability of the measuring instrument. Different objects being measured may have different surface characteristics and dimensional requirements. This gap allows the sealing rubber ring and the outer sealing ring to adjust their position and state more flexibly in response to these differences. For example, for objects with uneven surfaces or slightly varying dimensions, the gap provides the sealing rubber ring with some room to move, allowing it to better conform to the object's surface, while the outer sealing ring maintains a relatively stable position. This ensures the entire sealing system functions effectively, improving the measuring instrument's adaptability to different measurement scenarios and broadening its application range. This gap also serves as a drainage and venting mechanism. During measurement, a small amount of liquid may seep between the sealing rubber ring and the outer sealing ring. Simultaneously, the gap facilitates airflow, enabling rapid pressure balancing during installation and disassembly of the measuring instrument, making operation smoother and more convenient. From a maintenance and repair perspective, the gap makes inspection and replacement of the sealing rubber ring and the outer sealing ring easier. Workers can visually observe the condition of the two sealing rings through the gap, promptly identifying any issues such as wear, aging, or damage. When sealing ring replacement is needed, the gap also provides sufficient space for tool insertion and operation, reducing maintenance difficulty, improving equipment maintainability, and ensuring the measuring instrument maintains optimal performance at all times.

[0015] Preferably, the number of sealing soft rubber rings is one, the softness of the sealing soft rubber ring is higher than that of the outer sealing ring, the height of the sealing soft rubber ring when not subjected to external force is greater than the height of the outer sealing ring, the base exerts a force on the sealing soft rubber ring and causes the sealing soft rubber ring to deform, and the height of the sealing soft rubber ring after deformation is equal to the height of the outer sealing ring.

[0016] Setting the number of sealing rubber rings to one offers several advantages. Firstly, it reduces the complexity of the sealing structure, lowering the risk of seal failure due to installation errors or improper fit between multiple sealing rubber rings. A single sealing rubber ring is easier to install and position, ensuring accurate sealing at the base and improving the reliability and stability of the entire sealing system. Secondly, the single sealing rubber ring design simplifies the maintenance and replacement process of the measuring instrument. When inspection, repair, or replacement of the sealing rubber ring is required, the operation is more convenient, eliminating the need for complex differentiation and handling among multiple sealing rubber rings, reducing maintenance and time costs, and improving equipment maintainability.

[0017] Because the sealing rubber ring is more flexible than the outer sealing ring, it can better adapt to various microscopic unevennesses on the surface of the object being measured. Upon contact with the object, the rubber ring flows like a liquid, filling surface depressions and gaps to form a tight and complete fit. In contrast, the harder outer sealing ring primarily provides macroscopic fixation and support, while the flexible sealing rubber ring is responsible for achieving a perfect seal at the microscopic level. The two complement each other, greatly enhancing the sealing effect of the entire sealing structure, effectively preventing liquid leakage, and ensuring precise control of the liquid flow direction and volume during measurement, thereby improving the accuracy of permeability coefficient measurement.

[0018] When the measuring instrument is installed on the object being measured, the base exerts a force on the sealing rubber ring, causing it to deform until its final height is equal to that of the outer sealing ring. During this process, the initial height advantage of the sealing rubber ring translates into strong sealing pressure. As the rubber ring is compressed during deformation, the resulting elastic restoring force allows it to adhere more tightly to the surface of the object being measured, further enhancing the sealing effect. Simultaneously, this height-variable design allows the sealing rubber ring to function better in different measurement scenarios, exhibiting greater adaptability.

[0019] Preferably, there are multiple sealing rubber rings, which are nested sequentially with gaps between adjacent sealing rubber rings. The softness of the multiple sealing rubber rings decreases from the inside to the outside, with the outermost sealing rubber ring being more soft than the outermost sealing ring. The height of the multiple sealing rubber rings when not subjected to external force decreases from the inside to the outside, with the outermost sealing rubber ring being more tall than the outermost sealing ring. The base exerts a force on the multiple sealing rubber rings, causing them to deform. The height of the multiple sealing rubber rings after deformation is equal to the height of the outermost sealing ring. The liquid flowing out from the opening and closing valve enters the inner ring of the innermost sealing rubber ring.

[0020] The design employing multiple nested sealing rubber rings significantly enhances the sealing performance of the entire permeability measuring instrument. These multiple sealing rubber rings form a multi-layered sealing barrier, much like a robust wall, greatly improving the instrument's sealing reliability. Each layer of sealing rubber ring effectively prevents liquid leakage. Even if one layer is slightly damaged or not sealing properly, subsequent sealing rubber rings can still function, effectively preventing further liquid leakage. This greatly reduces the risk of measurement errors caused by liquid leakage during the measurement process, ensuring the accuracy and stability of the measurement results.

[0021] The gap provides ample space for the sealing rubber ring to deform under external force. During the deformation process caused by the base applying force, the gap allows the sealing rubber ring to expand and contract freely, preventing excessive deformation or damage caused by mutual compression and extending its service life. The softness of multiple sealing rubber rings decreases progressively from the inside out; this gradual softness design fully considers the functional requirements of the sealing rubber rings in different positions. The innermost sealing rubber ring is in direct contact with the object being measured and must accommodate the liquid flowing from the valve. Its higher softness allows it to better conform to the subtle irregularities of the object's surface, achieving a high-precision seal and ensuring that the liquid is completely confined within the measurement area. As the layers move outward, the softness of the sealing rubber rings gradually decreases, enhancing the stability and support of the entire sealing structure. The harder outer sealing rubber ring provides reliable support for the inner rubber rings, preventing them from excessively deforming or even losing their sealing function due to excessive pressure. Meanwhile, the outermost sealing rubber ring is more flexible than the outer sealing ring, which not only ensures a good fit with the outer sealing ring, but also compensates for the shortcomings of the outer sealing ring in micro-sealing to a certain extent, further improving the overall sealing performance.

[0022] The height of the multiple sealing rubber rings decreases sequentially from the inside to the outside when not under external force, with the outermost sealing rubber ring being taller than the outermost sealing ring. This height difference design is significant. When the measuring instrument is installed on the object being measured, the base exerts a force on the multiple sealing rubber rings, causing them to deform. During this process, the sealing rubber rings at different heights deform to varying degrees based on their own height and flexibility, thus forming a multi-layered, self-adaptive sealing system. The height of all the deformed sealing rubber rings is equal to the height of the outermost sealing ring. This uniform height makes the entire sealing structure more neat and stable, further enhancing the sealing effect.

[0023] Preferably, there are multiple sealing rubber rings, which are nested sequentially with gaps between adjacent sealing rubber rings. The multiple sealing rubber rings have the same softness and are softer than the outer sealing ring. The multiple sealing rubber rings have the same height when not subjected to external force and are greater than the height of the outer sealing ring. The base exerts a force on the multiple sealing rubber rings, causing them to deform. The height of the multiple sealing rubber rings after deformation is equal to the height of the outer sealing ring. The liquid flowing out from the opening and closing valve enters the inner ring of the innermost sealing rubber ring.

[0024] The design of multiple nested sealing rubber rings constructs a multi-layered, all-around sealing protection system. This structure acts like multiple layers of insurance, greatly enhancing the overall sealing reliability of the measuring instrument. Each sealing rubber ring serves as a line of defense; even if one sealing rubber ring develops a minor sealing defect due to long-term use or accidental events, the subsequent sealing rubber rings can still effectively prevent liquid leakage, ensuring that the liquid is always confined within the specified area during the measurement process. This provides a solid guarantee for obtaining accurate permeability coefficient measurement results.

[0025] During the installation and use of the measuring instrument, when the base applies force to the sealing rubber ring, causing it to deform, the gap provides the necessary expansion and contraction space for the sealing rubber ring. This prevents the sealing rubber ring from excessively deforming or even breaking due to mutual compression, greatly extending its service life and reducing measurement errors and equipment failure probability caused by damage to sealing components. The gap also helps to balance the air pressure inside and outside the measuring instrument, ensuring that the sealing rubber ring can perform its sealing function normally under different environmental conditions, thus improving the stability and adaptability of the measuring instrument.

[0026] The design of multiple sealing rubber rings with uniform softness, exceeding that of the outer sealing ring, offers numerous advantages. Due to their higher softness, these rings better conform to the microscopic irregularities of the measured object's surface. When the measuring instrument is mounted on the object, the base applies force to the multiple sealing rubber rings, causing them to deform. Because they initially have the same height, the multiple sealing rubber rings deform synchronously, collectively adapting to pressure changes on the measured object's surface. Ultimately, the deformed heights of all the sealing rubber rings are equal to the height of the outer sealing ring, resulting in a more regular and stable sealing structure, further enhancing the sealing effect. This uniform sealing structure not only improves the measuring instrument's sealing performance but also makes it more aesthetically pleasing and harmonious in appearance.

[0027] The design guides the liquid flowing from the on / off valve to the innermost sealing rubber ring, ensuring the accuracy and controllability of the measurement process. The innermost sealing rubber ring, with its excellent sealing performance, precisely confines the liquid within the measurement area, preventing leakage into the surrounding environment and effectively reducing interference from external factors. Simultaneously, this layout makes the liquid flow path clear and singular, facilitating precise observation, analysis, and calculation by operators. Whether recording liquid permeation time or assessing the permeability of the measured object, the results are more accurate and reliable, providing strong support for obtaining accurate permeability coefficients and contributing to improving the scientific rigor and professionalism of the measurement work.

[0028] Preferably, it also includes a pressure block, which presses against the upper surface of the base.

[0029] The pressure block, pressed against the upper surface of the base, enhances the overall stability of the measuring instrument. During measurement, especially when the measuring instrument is subjected to external vibrations, minor impacts, or under different working environmental conditions, the pressure block effectively prevents displacement or shaking of the base and its components. This ensures that the relative positions of the measuring instrument's parts remain accurate, avoiding any impact on measurement accuracy due to component position changes. For example, during measurements at construction sites, the surrounding environment may experience vibrations from various mechanical equipment; the pressure block effectively counteracts these vibrations, ensuring stable operation of the measuring instrument. Furthermore, the pressure applied to the base by the pressure block further enhances the sealing effect between the sealing rubber ring and the surface of the measured object. By applying downward pressure to the base, it indirectly makes the sealing rubber ring adhere more tightly to the surface of the measured object. This additional pressure fills any tiny gaps that may exist between the sealing rubber ring and the surface of the measured object, preventing liquid leakage from these potential gaps, thereby improving the reliability of the entire sealing system and providing a more reliable guarantee for accurate measurement of the permeability coefficient. The presence of the pressure block also facilitates the operation and fixation of the measuring instrument. When installing and removing the measuring instrument, operators can easily position and fix it using the pressure block, making the operation more convenient and efficient. Furthermore, the pressure block helps maintain the perpendicularity and flatness of the measuring instrument to the surface of the object being measured during the measurement process, ensuring that the liquid can penetrate evenly into the object, thus improving the accuracy and repeatability of the measurement results.

[0030] Preferably, the pressure block is provided with a second through hole, through which the water storage cylinder passes.

[0031] The second through-hole provides a precise positioning and support structure for the water storage cylinder. After passing through the second through-hole, the water storage cylinder can be accurately fixed in the center of the measuring instrument, ensuring the relative positional accuracy between the water storage cylinder and the base and other components. The second through-hole enhances the stability of the water storage cylinder to a certain extent, providing an additional support point and reducing shaking and swaying during instrument operation. This support effect is particularly noticeable when the water storage cylinder contains a certain amount of liquid. A stable water storage cylinder ensures the stability and uniformity of liquid outflow, making the measurement process smoother and more reliable.

[0032] Preferably, the bottom of the water storage tank is provided with an on / off valve.

[0033] The on / off valve allows operators to precisely control the timing and flow rate of the liquid. During the measurement preparation phase, closing the valve safely stores the liquid in the reservoir, preventing premature outflow from interfering with the measurement. Once everything is ready and measurement is about to begin, simply opening the valve accurately according to the measurement requirements allows the appropriate amount of liquid to flow into the measurement area surrounded by the sealing rubber ring at a predetermined speed and flow rate. The on / off valve effectively controls the initial flow time and flow rate of the liquid, thereby reducing measurement errors caused by unstable liquid flow or inaccurate outflow. For example, when measuring the permeability coefficient of materials with extremely high requirements for liquid permeation volume and time, the on / off valve ensures that the liquid outflow conditions remain consistent for each measurement, improving the repeatability and comparability of the measurement results.

[0034] Preferably, the water storage cylinder is provided with graduations.

[0035] The graduations on the water storage tank provide an intuitive and accurate reference for permeability coefficient measurement, clearly displaying the remaining liquid level. During measurement, operators can monitor liquid consumption at any time by observing the graduations, allowing for better control of the measurement progress. Since permeability coefficient measurement is closely related to the outflow rate, the graduations enable operators to accurately control the amount of liquid flowing from the tank, leading to more precise calculations of the permeability coefficient. This is particularly important when multiple measurements are required or when high accuracy is demanded. The graduations ensure consistent liquid outflow across all measurements, improving accuracy and repeatability. Furthermore, the graduations facilitate communication and collaboration among operators. In multi-person measurement projects, each operator can quickly understand the liquid level in the tank by observing the graduations, eliminating the need for verbal explanations or complex calculations.

[0036] The advantages of this utility model compared to the prior art are:

[0037] The permeability coefficient measuring instrument of this invention has a double sealing structure, namely an outer sealing ring and a sealing soft rubber ring, which can form two sealing defenses between the measuring instrument and the surface of the object being measured, effectively preventing liquid from leaking out from the outer edge of the measuring instrument and ensuring the accuracy of the permeability coefficient measurement.

[0038] The outer sealing ring at the bottom of the base forms the first line of defense between the measuring instrument and the surface of the object being measured, effectively preventing liquid leakage from the outer edge of the measuring instrument. This is crucial for ensuring the accuracy of liquid flow direction and flow rate during measurement. Accurately controlling the liquid flow path is a prerequisite for obtaining precise measurement results when measuring permeability. The outer sealing ring acts like a sturdy dam, firmly confining the liquid within the specific area of ​​contact between the measuring instrument and the object, avoiding measurement errors caused by liquid leakage and greatly improving the reliability of the measurement data.

[0039] The sealing soft rubber ring located inside the outer sealing ring further enhances the sealing performance of the measuring instrument. The sealing soft rubber ring is soft and highly elastic, allowing it to tightly conform to the surface of the object being measured. Even if the surface of the object has some unevenness, the sealing soft rubber ring can fill the gaps through its own deformation, achieving a perfect seal. This excellent sealing effect not only prevents liquid from leaking from the contact interface between the measuring instrument and the object being measured, but also ensures that all liquid flowing out from the opening and closing valve enters the inner ring of the sealing soft rubber ring, precisely acting on the area where the permeability coefficient needs to be measured. This minimizes the interference of external factors on the measurement results, making the measurement results more accurate and reliable.

[0040] The design of the water storage cylinder passing through the first through hole on the base makes the installation of the water storage cylinder more stable, less prone to shaking or displacement, ensuring the stability of the water storage cylinder during the measurement process. It also provides a smooth channel for liquid delivery, allowing the liquid in the storage cylinder to smoothly pass through the first through hole and reach the inner ring of the sealing rubber ring below. This structural design reduces obstruction during liquid transmission, improves the efficiency of liquid flow, and thus shortens the measurement time, improving the overall efficiency of the measurement work. The on / off valve can precisely control the outflow rate and time of the liquid. Before measurement begins, the on / off valve can be closed to safely store the liquid in the water storage cylinder, preventing premature leakage from affecting the measurement. When measurement is required, simply open the on / off valve accurately according to the measurement requirements, releasing an appropriate amount of liquid into the inner ring of the sealing rubber ring. This precise flow control function makes the measurement process more scientific and standardized, meeting the precise liquid volume requirements in different measurement scenarios, further improving the accuracy and repeatability of permeability coefficient measurement. Attached Figure Description

[0041] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0042] Figure 1 This is a cross-sectional view of the permeability coefficient measuring instrument of Embodiment 1 of this utility model.

[0043] Figure 2 This is a cross-sectional view of the permeability coefficient measuring instrument of Embodiment 2 of this utility model.

[0044] Figure 3 This is a cross-sectional view of the permeability coefficient measuring instrument of Embodiment 3 of this utility model. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0046] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0047] It should be noted that similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In the description of the embodiments of this application, it should be understood that the terms "upper," "lower," "left," "right," "vertical," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures, or the orientation or positional relationship commonly used when the product of this application is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0048] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0049] The technical solutions in this application will now be described with reference to the accompanying drawings. Example 1

[0050] This embodiment provides a permeability coefficient measuring instrument, including a base 100, an outer sealing ring 200 disposed at the bottom of the base 100, a sealing soft rubber ring 300 disposed at the bottom of the base 100 and located inside the outer sealing ring 200, and a water storage cylinder 400 disposed on the base 100. The base 100 is provided with a first through hole 110, through which the water storage cylinder 400 passes. An on / off valve 410 is provided at the bottom of the water storage cylinder 400, and the liquid flowing out of the on / off valve 410 enters the inner ring of the sealing soft rubber ring 300.

[0051] It features a dual-sealing structure, consisting of an outer sealing ring 200 and a sealing soft rubber ring 300, which forms two sealing lines between the measuring instrument and the surface of the object being measured. This effectively prevents liquid from leaking out from the outer edge of the measuring instrument, ensuring the accuracy of the permeability coefficient measurement.

[0052] The outer sealing ring 200 located at the bottom of the base 100 forms the first line of defense between the measuring instrument and the surface of the object being measured, effectively preventing liquid leakage from the outer edge of the measuring instrument. This is crucial for ensuring the accuracy of the liquid flow direction and flow rate during the measurement process. Accurate control of the liquid flow path is a prerequisite for obtaining precise measurement results when measuring permeability. The presence of the outer sealing ring 200 acts like a sturdy dam, firmly confining the liquid within the specific area of ​​contact between the measuring instrument and the object being measured, avoiding measurement errors caused by liquid leakage and greatly improving the reliability of the measurement data.

[0053] The sealing soft rubber ring 300, located inside the outer sealing ring 200, further enhances the sealing performance of the measuring instrument. The sealing soft rubber ring 300 is soft and highly elastic, allowing it to tightly conform to the surface of the object being measured. Even if the surface of the object has some unevenness, the sealing soft rubber ring 300 can fill the gaps through its own deformation, achieving a perfect seal. This excellent sealing effect not only prevents liquid from seeping out from the contact interface between the measuring instrument and the object being measured, but also ensures that all liquid flowing from the on / off valve 410 enters the inner ring of the sealing soft rubber ring 300, precisely acting on the area where the permeability coefficient needs to be measured. This minimizes the interference of external factors on the measurement results, making the measurement results more accurate and reliable.

[0054] The design of the water storage cylinder 400 passing through the first through hole 110 on the base 100 makes the installation of the water storage cylinder 400 more stable, less prone to shaking or displacement, ensuring the stability of the water storage cylinder 400 during the measurement process. It also provides a smooth channel for liquid delivery, allowing the liquid in the water storage cylinder 400 to smoothly pass through the first through hole 110 and reach the inner ring of the sealing rubber ring 300 below. This structural design reduces obstruction during liquid transmission, improves the efficiency of liquid flow, and thus shortens the measurement time, improving the overall efficiency of the measurement work. The on / off valve 410 can precisely control the outflow rate and time of the liquid. Before the measurement begins, the on / off valve 410 can be closed to safely store the liquid in the water storage cylinder 400, preventing premature leakage from affecting the measurement. When measurement is required, simply open the on / off valve 410 accurately according to the measurement requirements to release an appropriate amount of liquid into the inner ring of the sealing rubber ring 300. This precise flow control function makes the measurement process more scientific and standardized, and can meet the precise liquid volume requirements in different measurement scenarios, further improving the accuracy and repeatability of permeability coefficient measurement.

[0055] In this embodiment, the cross-section of the sealing rubber ring 300 is wavy.

[0056] The sealing rubber ring 300 features a wavy cross-section, which gives it excellent elasticity and cushioning properties. This allows the sealing rubber ring 300 to undergo height changes more easily while maintaining good sealing performance. The wavy structure acts like a series of tiny springs, elastically deforming under pressure to absorb and disperse these external forces. This not only helps protect the sealing rubber ring 300 from damage due to excessive compression, extending its service life, but also reduces the risk of damage to the surface of the object being measured due to external impacts.

[0057] In this embodiment, there is a gap between the sealing soft rubber ring 300 and the outer sealing ring 200.

[0058] The gap between the sealing rubber ring 300 and the outer sealing ring 200 provides a buffer space, enhancing the adaptability of the measuring instrument. Different objects may have different surface characteristics and dimensional requirements. This gap allows the sealing rubber ring 300 and the outer sealing ring 200 to adjust their position and state more flexibly in response to these differences. For example, for objects with uneven surfaces or slightly varying dimensions, the gap provides the sealing rubber ring 300 with some room to move, allowing it to better conform to the object's surface, while the outer sealing ring 200 maintains a relatively stable position. This ensures the entire sealing system functions effectively, improving the measuring instrument's adaptability to different measurement scenarios and broadening its application range. This gap also serves as a drainage and venting mechanism. During measurement, a small amount of liquid may seep between the sealing rubber ring 300 and the outer sealing ring 200. Simultaneously, the gap facilitates airflow, enabling rapid equalization of internal and external air pressure during instrument installation and disassembly, making operation smoother and more convenient. From a maintenance and repair perspective, the gap facilitates the inspection and replacement of the sealing rubber ring 300 and the outer sealing ring 200. Workers can visually observe the condition of both sealing rings through the gap, promptly identifying any wear, aging, or damage. When sealing ring replacement is necessary, the gap also provides sufficient space for tool insertion and operation, reducing the difficulty of maintenance, improving equipment maintainability, and ensuring the measuring instrument maintains optimal performance at all times.

[0059] In this embodiment, there is one sealing soft rubber ring 300. The softness of the sealing soft rubber ring 300 is higher than that of the outer sealing ring 200. The height of the sealing soft rubber ring 300 when not subjected to external force is greater than the height of the outer sealing ring 200. The base 100 exerts a force on the sealing soft rubber ring 300 and causes the sealing soft rubber ring 300 to deform. The height of the sealing soft rubber ring 300 after deformation is equal to the height of the outer sealing ring 200.

[0060] Setting the number of sealing rubber rings 300 to one offers several advantages. Firstly, it reduces the complexity of the sealing structure, lowering the risk of seal failure due to installation errors or improper fit among multiple sealing rubber rings 300. A single sealing rubber ring 300 is easier to install and position, ensuring it accurately seals at the bottom of the base 100, thus improving the reliability and stability of the entire sealing system. Secondly, the single sealing rubber ring 300 design simplifies the maintenance and replacement process of the measuring instrument. When inspection, repair, or replacement of the sealing rubber ring 300 is required, the operation is more convenient, eliminating the need for complex differentiation and manipulation among multiple sealing rubber rings 300, reducing maintenance and time costs, and improving the maintainability of the equipment.

[0061] Because the sealing soft rubber ring 300 is more flexible than the outer sealing ring 200, it can better adapt to various microscopic unevennesses on the surface of the object being measured. Upon contact with the object, the soft rubber ring flows like a liquid, filling surface depressions and gaps to form a tight and comprehensive fit. In contrast, the harder outer sealing ring 200 primarily serves a macroscopic fixing and support function, while the soft sealing rubber ring 300 is responsible for achieving a perfect seal at the microscopic level. The two complement each other, greatly enhancing the sealing effect of the entire sealing structure, effectively preventing liquid leakage, and ensuring precise control of the liquid flow direction and volume during measurement, thereby improving the accuracy of permeability coefficient measurement.

[0062] When the measuring instrument is installed on the object being measured, the base 100 exerts a force on the sealing rubber ring 300, causing it to deform until its final height is equal to that of the outer sealing ring 200. During this process, the initial height advantage of the sealing rubber ring 300 is converted into strong sealing pressure. As the rubber ring is compressed during deformation, the elastic restoring force generated within it allows it to adhere more tightly to the surface of the object being measured, further enhancing the sealing effect. Simultaneously, this height-variable design allows the sealing rubber ring 300 to function better in different measurement scenarios, exhibiting greater adaptability.

[0063] In this embodiment, a pressure block 500 is also included, which presses against the upper surface of the base 100.

[0064] The pressure block 500 presses against the upper surface of the base 100, enhancing the overall stability of the measuring instrument. During measurement, especially when the measuring instrument is subjected to external vibrations, minor impacts, or under different working environmental conditions, the pressure block 500 effectively prevents displacement or shaking of the base 100 and the various components mounted on it. This ensures that the relative positions between the various parts of the measuring instrument remain accurate, avoiding any impact on measurement accuracy due to component position changes. For example, when measuring at construction sites, the surrounding environment may contain vibrations from various mechanical equipment. In this case, the pressure block 500 can effectively counteract the adverse effects of these vibrations, ensuring the stable operation of the measuring instrument. Furthermore, the pressure applied by the pressure block 500 to the base 100 further enhances the sealing effect between the sealing rubber ring 300 and the surface of the object being measured. By applying downward pressure to the base 100, it indirectly makes the sealing rubber ring 300 adhere more tightly to the surface of the object being measured. This additional pressure fills any tiny gaps that may exist between the sealing rubber ring 300 and the surface of the object being measured, preventing liquid from leaking out through these potential gaps. This improves the reliability of the entire sealing system and provides a more reliable guarantee for accurate measurement of the permeability coefficient. The presence of the pressure block 500 also facilitates the operation and fixation of the measuring instrument. When installing and removing the measuring instrument, operators can more easily position and fix it by pressing the pressure block 500, making the operation process more convenient and efficient. Furthermore, the placement of the pressure block 500 helps maintain the perpendicularity and flatness of the measuring instrument to the surface of the object being measured during the measurement process, ensuring that the liquid can penetrate evenly into the object, improving the accuracy and repeatability of the measurement results.

[0065] In this embodiment, the pressure block 500 is provided with a second through hole 510, through which the water storage cylinder 400 passes.

[0066] The second through hole 510 provides a precise positioning and support structure for the water storage cylinder 400. After passing through the second through hole 510, the water storage cylinder 400 can be accurately fixed at the center of the measuring instrument, ensuring the relative positional accuracy between the water storage cylinder 400, the base 100, and other components. The second through hole 510 enhances the stability of the water storage cylinder 400 to a certain extent, providing additional support points and reducing shaking and swaying during instrument operation. This support effect is particularly noticeable when the water storage cylinder 400 contains a certain amount of liquid. A stable water storage cylinder 400 ensures the stability and uniformity of liquid outflow, making the measurement process smoother and more reliable.

[0067] In this embodiment, an on / off valve 410 is provided at the bottom of the water storage cylinder 400.

[0068] The on / off valve 410 allows operators to precisely control the timing and flow rate of the liquid. During the measurement preparation phase, closing the on / off valve 410 safely stores the liquid in the storage tank 400, preventing premature liquid outflow from interfering with the measurement. When all preparations are complete and measurement is ready, simply opening the on / off valve 410 accurately according to the measurement requirements allows an appropriate amount of liquid to flow into the measurement area surrounded by the sealing rubber ring 300 at a predetermined speed and flow rate. The on / off valve 410 effectively controls the initial flow time and flow rate of the liquid, thereby reducing measurement errors caused by unstable liquid flow or inaccurate outflow. For example, when measuring the permeability coefficient of materials with extremely high requirements for liquid permeation volume and time, the on / off valve 410 ensures that the liquid outflow conditions remain consistent for each measurement, improving the repeatability and comparability of the measurement results.

[0069] In this embodiment, the water storage cylinder 400 is equipped with graduations.

[0070] The graduations on the water storage tank 400 provide an intuitive and accurate reference for permeability coefficient measurement, clearly displaying the remaining liquid level within the tank. During measurement, operators can monitor liquid consumption at any time by observing the graduations, allowing for better control of the measurement progress. Since permeability coefficient measurement is closely related to the outflow rate, the graduations enable operators to accurately control the amount of liquid flowing from the tank 400, leading to more precise calculations of the permeability coefficient. This is particularly important when multiple measurements are required or when high accuracy is demanded. The graduations ensure consistent liquid outflow in each measurement, improving accuracy and repeatability. Furthermore, the graduations facilitate communication and collaboration among operators. In multi-person measurement projects, each operator can quickly understand the liquid level within the tank 400 by observing the graduations, eliminating the need for verbal explanations or complex calculations. Example 2

[0071] This embodiment provides a permeability coefficient measuring instrument, including a base 100, an outer sealing ring 200 disposed at the bottom of the base 100, a sealing soft rubber ring 300 disposed at the bottom of the base 100 and located inside the outer sealing ring 200, and a water storage cylinder 400 disposed on the base 100. The base 100 is provided with a first through hole 110, through which the water storage cylinder 400 passes. An on / off valve 410 is provided at the bottom of the water storage cylinder 400, and the liquid flowing out of the on / off valve 410 enters the inner ring of the sealing soft rubber ring 300.

[0072] It features a dual-sealing structure, consisting of an outer sealing ring 200 and a sealing soft rubber ring 300, which forms two sealing lines between the measuring instrument and the surface of the object being measured. This effectively prevents liquid from leaking out from the outer edge of the measuring instrument, ensuring the accuracy of the permeability coefficient measurement.

[0073] The outer sealing ring 200 located at the bottom of the base 100 forms the first line of defense between the measuring instrument and the surface of the object being measured, effectively preventing liquid leakage from the outer edge of the measuring instrument. This is crucial for ensuring the accuracy of the liquid flow direction and flow rate during the measurement process. Accurate control of the liquid flow path is a prerequisite for obtaining precise measurement results when measuring permeability. The presence of the outer sealing ring 200 acts like a sturdy dam, firmly confining the liquid within the specific area of ​​contact between the measuring instrument and the object being measured, avoiding measurement errors caused by liquid leakage and greatly improving the reliability of the measurement data.

[0074] The sealing soft rubber ring 300, located inside the outer sealing ring 200, further enhances the sealing performance of the measuring instrument. The sealing soft rubber ring 300 is soft and highly elastic, allowing it to tightly conform to the surface of the object being measured. Even if the surface of the object has some unevenness, the sealing soft rubber ring 300 can fill the gaps through its own deformation, achieving a perfect seal. This excellent sealing effect not only prevents liquid from seeping out from the contact interface between the measuring instrument and the object being measured, but also ensures that all liquid flowing from the on / off valve 410 enters the inner ring of the sealing soft rubber ring 300, precisely acting on the area where the permeability coefficient needs to be measured. This minimizes the interference of external factors on the measurement results, making the measurement results more accurate and reliable.

[0075] The design of the water storage cylinder 400 passing through the first through hole 110 on the base 100 makes the installation of the water storage cylinder 400 more stable, less prone to shaking or displacement, ensuring the stability of the water storage cylinder 400 during the measurement process. It also provides a smooth channel for liquid delivery, allowing the liquid in the water storage cylinder 400 to smoothly pass through the first through hole 110 and reach the inner ring of the sealing rubber ring 300 below. This structural design reduces obstruction during liquid transmission, improves the efficiency of liquid flow, and thus shortens the measurement time, improving the overall efficiency of the measurement work. The on / off valve 410 can precisely control the outflow rate and time of the liquid. Before the measurement begins, the on / off valve 410 can be closed to safely store the liquid in the water storage cylinder 400, preventing premature leakage from affecting the measurement. When measurement is required, simply open the on / off valve 410 accurately according to the measurement requirements to release an appropriate amount of liquid into the inner ring of the sealing rubber ring 300. This precise flow control function makes the measurement process more scientific and standardized, and can meet the precise liquid volume requirements in different measurement scenarios, further improving the accuracy and repeatability of permeability coefficient measurement.

[0076] In this embodiment, the cross-section of the sealing rubber ring 300 is wavy.

[0077] The sealing rubber ring 300 features a wavy cross-section, which gives it excellent elasticity and cushioning properties. This allows the sealing rubber ring 300 to undergo height changes more easily while maintaining good sealing performance. The wavy structure acts like a series of tiny springs, elastically deforming under pressure to absorb and disperse these external forces. This not only helps protect the sealing rubber ring 300 from damage due to excessive compression, extending its service life, but also reduces the risk of damage to the surface of the object being measured due to external impacts.

[0078] In this embodiment, there is a gap between the sealing soft rubber ring 300 and the outer sealing ring 200.

[0079] The gap between the sealing rubber ring 300 and the outer sealing ring 200 provides a buffer space, enhancing the adaptability of the measuring instrument. Different objects may have different surface characteristics and dimensional requirements. This gap allows the sealing rubber ring 300 and the outer sealing ring 200 to adjust their position and state more flexibly in response to these differences. For example, for objects with uneven surfaces or slightly varying dimensions, the gap provides the sealing rubber ring 300 with some room to move, allowing it to better conform to the object's surface, while the outer sealing ring 200 maintains a relatively stable position. This ensures the entire sealing system functions effectively, improving the measuring instrument's adaptability to different measurement scenarios and broadening its application range. This gap also serves as a drainage and venting mechanism. During measurement, a small amount of liquid may seep between the sealing rubber ring 300 and the outer sealing ring 200. Simultaneously, the gap facilitates airflow, enabling rapid equalization of internal and external air pressure during instrument installation and disassembly, making operation smoother and more convenient. From a maintenance and repair perspective, the gap facilitates the inspection and replacement of the sealing rubber ring 300 and the outer sealing ring 200. Workers can visually observe the condition of both sealing rings through the gap, promptly identifying any wear, aging, or damage. When sealing ring replacement is necessary, the gap also provides sufficient space for tool insertion and operation, reducing the difficulty of maintenance, improving equipment maintainability, and ensuring the measuring instrument maintains optimal performance at all times.

[0080] In this embodiment, there are three sealing rubber rings 300, which are nested sequentially with gaps between adjacent sealing rubber rings 300. The softness of the three sealing rubber rings 300 decreases from the inside to the outside, with the outermost sealing rubber ring 300 being more soft than the outer sealing ring 200. The height of the three sealing rubber rings 300 when not subjected to external force decreases from the inside to the outside, with the outermost sealing rubber ring 300 being more tall than the outer sealing ring 200. The base 100 exerts a force on the three sealing rubber rings 300, causing them to deform. The height of the three sealing rubber rings 300 after deformation is equal to the height of the outer sealing ring 200. The liquid flowing out from the on / off valve 410 enters the inner ring of the innermost sealing rubber ring 300.

[0081] The design employing three nested sealing rubber rings (300) significantly enhances the sealing performance of the entire permeability measuring instrument. These three sealing rubber rings (300) form a multi-layered sealing barrier, much like a robust wall, greatly improving the instrument's sealing reliability. Each sealing rubber ring (300) effectively prevents liquid leakage. Even if one sealing rubber ring (300) is slightly damaged or not sealing properly, the subsequent sealing rubber rings (300) can still function, effectively preventing further liquid leakage. This greatly reduces the risk of measurement errors caused by liquid leakage during the measurement process, ensuring the accuracy and stability of the measurement results.

[0082] The gap provides ample space for the sealing rubber ring 300 to deform under external force. During the deformation of the sealing rubber ring 300 caused by the force applied by the base 100, the gap allows the sealing rubber ring 300 to expand and contract freely, avoiding excessive deformation or damage caused by mutual compression and extending its service life. The softness of the three sealing rubber rings 300 decreases progressively from the inside out. This gradual softness design fully considers the functional requirements of the sealing rubber rings 300 at different positions. The innermost sealing rubber ring 300 is in direct contact with the object being measured and must accommodate the liquid flowing from the opening and closing valve 410. Its higher softness allows it to better conform to the subtle irregularities on the surface of the object being measured, achieving a high-precision seal and ensuring that the liquid is completely confined within the measurement area. As the layers move outward, the softness of the sealing rubber rings 300 gradually decreases. This design enhances the stability and support of the entire sealing structure. The relatively rigid outer sealing ring 300 provides reliable support for the inner sealing ring, preventing it from deforming excessively or even losing its sealing function due to excessive pressure. Simultaneously, the outermost sealing ring 300 is more flexible than the outer sealing ring 200, ensuring a good fit with it while also compensating for the microscopic sealing deficiencies of the outer sealing ring 200, further enhancing overall sealing performance.

[0083] The heights of the three sealing rubber rings 300, when not subjected to external force, decrease sequentially from the inside to the outside, with the outermost sealing rubber ring 300 being taller than the outer sealing ring 200. This height difference design is significant. When the measuring instrument is installed on the object being measured, the base 100 exerts a force on the three sealing rubber rings 300, causing them to deform. During this process, the sealing rubber rings 300 at different heights will deform to varying degrees according to their own height and flexibility characteristics, thus forming a multi-layered, self-adaptive sealing system. The heights of the three sealing rubber rings 300 after deformation are all equal to the height of the outer sealing ring 200. This uniform height makes the entire sealing structure more neat and stable, further enhancing the sealing effect.

[0084] In this embodiment, a pressure block 500 is also included, which presses against the upper surface of the base 100.

[0085] The pressure block 500 presses against the upper surface of the base 100, enhancing the overall stability of the measuring instrument. During measurement, especially when the measuring instrument is subjected to external vibrations, minor impacts, or under different working environmental conditions, the pressure block 500 effectively prevents displacement or shaking of the base 100 and the various components mounted on it. This ensures that the relative positions between the various parts of the measuring instrument remain accurate, avoiding any impact on measurement accuracy due to component position changes. For example, when measuring at construction sites, the surrounding environment may contain vibrations from various mechanical equipment. In this case, the pressure block 500 can effectively counteract the adverse effects of these vibrations, ensuring the stable operation of the measuring instrument. Furthermore, the pressure applied by the pressure block 500 to the base 100 further enhances the sealing effect between the sealing rubber ring 300 and the surface of the object being measured. By applying downward pressure to the base 100, it indirectly makes the sealing rubber ring 300 adhere more tightly to the surface of the object being measured. This additional pressure fills any tiny gaps that may exist between the sealing rubber ring 300 and the surface of the object being measured, preventing liquid from leaking out through these potential gaps. This improves the reliability of the entire sealing system and provides a more reliable guarantee for accurate measurement of the permeability coefficient. The presence of the pressure block 500 also facilitates the operation and fixation of the measuring instrument. When installing and removing the measuring instrument, operators can more easily position and fix it by pressing the pressure block 500, making the operation process more convenient and efficient. Furthermore, the placement of the pressure block 500 helps maintain the perpendicularity and flatness of the measuring instrument to the surface of the object being measured during the measurement process, ensuring that the liquid can penetrate evenly into the object, improving the accuracy and repeatability of the measurement results.

[0086] In this embodiment, the pressure block 500 is provided with a second through hole 510, through which the water storage cylinder 400 passes.

[0087] The second through hole 510 provides a precise positioning and support structure for the water storage cylinder 400. After passing through the second through hole 510, the water storage cylinder 400 can be accurately fixed at the center of the measuring instrument, ensuring the relative positional accuracy between the water storage cylinder 400, the base 100, and other components. The second through hole 510 enhances the stability of the water storage cylinder 400 to a certain extent, providing additional support points and reducing shaking and swaying during instrument operation. This support effect is particularly noticeable when the water storage cylinder 400 contains a certain amount of liquid. A stable water storage cylinder 400 ensures the stability and uniformity of liquid outflow, making the measurement process smoother and more reliable.

[0088] In this embodiment, an on / off valve 410 is provided at the bottom of the water storage cylinder 400.

[0089] The on / off valve 410 allows operators to precisely control the timing and flow rate of the liquid. During the measurement preparation phase, closing the on / off valve 410 safely stores the liquid in the storage tank 400, preventing premature liquid outflow from interfering with the measurement. When all preparations are complete and measurement is ready, simply opening the on / off valve 410 accurately according to the measurement requirements allows an appropriate amount of liquid to flow into the measurement area surrounded by the sealing rubber ring 300 at a predetermined speed and flow rate. The on / off valve 410 effectively controls the initial flow time and flow rate of the liquid, thereby reducing measurement errors caused by unstable liquid flow or inaccurate outflow. For example, when measuring the permeability coefficient of materials with extremely high requirements for liquid permeation volume and time, the on / off valve 410 ensures that the liquid outflow conditions remain consistent for each measurement, improving the repeatability and comparability of the measurement results.

[0090] In this embodiment, the water storage cylinder 400 is equipped with graduations.

[0091] The graduations on the water storage tank 400 provide an intuitive and accurate reference for permeability coefficient measurement, clearly displaying the remaining liquid level within the tank. During measurement, operators can monitor liquid consumption at any time by observing the graduations, allowing for better control of the measurement progress. Since permeability coefficient measurement is closely related to the outflow rate, the graduations enable operators to accurately control the amount of liquid flowing from the tank 400, leading to more precise calculations of the permeability coefficient. This is particularly important when multiple measurements are required or when high accuracy is demanded. The graduations ensure consistent liquid outflow in each measurement, improving accuracy and repeatability. Furthermore, the graduations facilitate communication and collaboration among operators. In multi-person measurement projects, each operator can quickly understand the liquid level within the tank 400 by observing the graduations, eliminating the need for verbal explanations or complex calculations. Example 3

[0092] This embodiment provides a permeability coefficient measuring instrument, including a base 100, an outer sealing ring 200 disposed at the bottom of the base 100, a sealing soft rubber ring 300 disposed at the bottom of the base 100 and located inside the outer sealing ring 200, and a water storage cylinder 400 disposed on the base 100. The base 100 is provided with a first through hole 110, through which the water storage cylinder 400 passes. An on / off valve 410 is provided at the bottom of the water storage cylinder 400, and the liquid flowing out of the on / off valve 410 enters the inner ring of the sealing soft rubber ring 300.

[0093] It features a dual-sealing structure, consisting of an outer sealing ring 200 and a sealing soft rubber ring 300, which forms two sealing lines between the measuring instrument and the surface of the object being measured. This effectively prevents liquid from leaking out from the outer edge of the measuring instrument, ensuring the accuracy of the permeability coefficient measurement.

[0094] The outer sealing ring 200 located at the bottom of the base 100 forms the first line of defense between the measuring instrument and the surface of the object being measured, effectively preventing liquid leakage from the outer edge of the measuring instrument. This is crucial for ensuring the accuracy of the liquid flow direction and flow rate during the measurement process. Accurate control of the liquid flow path is a prerequisite for obtaining precise measurement results when measuring permeability. The presence of the outer sealing ring 200 acts like a sturdy dam, firmly confining the liquid within the specific area of ​​contact between the measuring instrument and the object being measured, avoiding measurement errors caused by liquid leakage and greatly improving the reliability of the measurement data.

[0095] The sealing soft rubber ring 300, located inside the outer sealing ring 200, further enhances the sealing performance of the measuring instrument. The sealing soft rubber ring 300 is soft and highly elastic, allowing it to tightly conform to the surface of the object being measured. Even if the surface of the object has some unevenness, the sealing soft rubber ring 300 can fill the gaps through its own deformation, achieving a perfect seal. This excellent sealing effect not only prevents liquid from seeping out from the contact interface between the measuring instrument and the object being measured, but also ensures that all liquid flowing from the on / off valve 410 enters the inner ring of the sealing soft rubber ring 300, precisely acting on the area where the permeability coefficient needs to be measured. This minimizes the interference of external factors on the measurement results, making the measurement results more accurate and reliable.

[0096] The design of the water storage cylinder 400 passing through the first through hole 110 on the base 100 makes the installation of the water storage cylinder 400 more stable, less prone to shaking or displacement, ensuring the stability of the water storage cylinder 400 during the measurement process. It also provides a smooth channel for liquid delivery, allowing the liquid in the water storage cylinder 400 to smoothly pass through the first through hole 110 and reach the inner ring of the sealing rubber ring 300 below. This structural design reduces obstruction during liquid transmission, improves the efficiency of liquid flow, and thus shortens the measurement time, improving the overall efficiency of the measurement work. The on / off valve 410 can precisely control the outflow rate and time of the liquid. Before the measurement begins, the on / off valve 410 can be closed to safely store the liquid in the water storage cylinder 400, preventing premature leakage from affecting the measurement. When measurement is required, simply open the on / off valve 410 accurately according to the measurement requirements to release an appropriate amount of liquid into the inner ring of the sealing rubber ring 300. This precise flow control function makes the measurement process more scientific and standardized, and can meet the precise liquid volume requirements in different measurement scenarios, further improving the accuracy and repeatability of permeability coefficient measurement.

[0097] In this embodiment, the cross-section of the sealing rubber ring 300 is wavy.

[0098] The sealing rubber ring 300 features a wavy cross-section, which gives it excellent elasticity and cushioning properties. This allows the sealing rubber ring 300 to undergo height changes more easily while maintaining good sealing performance. The wavy structure acts like a series of tiny springs, elastically deforming under pressure to absorb and disperse these external forces. This not only helps protect the sealing rubber ring 300 from damage due to excessive compression, extending its service life, but also reduces the risk of damage to the surface of the object being measured due to external impacts.

[0099] In this embodiment, there is a gap between the sealing soft rubber ring 300 and the outer sealing ring 200.

[0100] The gap between the sealing rubber ring 300 and the outer sealing ring 200 provides a buffer space, enhancing the adaptability of the measuring instrument. Different objects may have different surface characteristics and dimensional requirements. This gap allows the sealing rubber ring 300 and the outer sealing ring 200 to adjust their position and state more flexibly in response to these differences. For example, for objects with uneven surfaces or slightly varying dimensions, the gap provides the sealing rubber ring 300 with some room to move, allowing it to better conform to the object's surface, while the outer sealing ring 200 maintains a relatively stable position. This ensures the entire sealing system functions effectively, improving the measuring instrument's adaptability to different measurement scenarios and broadening its application range. This gap also serves as a drainage and venting mechanism. During measurement, a small amount of liquid may seep between the sealing rubber ring 300 and the outer sealing ring 200. Simultaneously, the gap facilitates airflow, enabling rapid equalization of internal and external air pressure during instrument installation and disassembly, making operation smoother and more convenient. From a maintenance and repair perspective, the gap facilitates the inspection and replacement of the sealing rubber ring 300 and the outer sealing ring 200. Workers can visually observe the condition of both sealing rings through the gap, promptly identifying any wear, aging, or damage. When sealing ring replacement is necessary, the gap also provides sufficient space for tool insertion and operation, reducing the difficulty of maintenance, improving equipment maintainability, and ensuring the measuring instrument maintains optimal performance at all times.

[0101] In this embodiment, there are three sealing rubber rings 300, which are nested sequentially with gaps between adjacent sealing rubber rings 300. The three sealing rubber rings 300 have the same softness and are softer than the outer sealing ring 200. The three sealing rubber rings 300 have the same height when not subjected to external force and are greater than the height of the outer sealing ring 200. The base 100 exerts a force on the three sealing rubber rings 300, causing them to deform. The height of the three sealing rubber rings 300 after deformation is equal to the height of the outer sealing ring 200. The liquid flowing out from the on / off valve 410 enters the inner ring of the innermost sealing rubber ring 300.

[0102] The design of three nested sealing rubber rings 300 creates a multi-layered, all-around sealing protection system. This structure acts like multiple layers of insurance, greatly enhancing the overall sealing reliability of the measuring instrument. Each sealing rubber ring 300 acts as a line of defense; even if one sealing rubber ring 300 develops a minor sealing defect due to long-term use or accidental events, the subsequent sealing rubber rings 300 can still effectively prevent liquid leakage, ensuring that the liquid is always confined within the specified area during the measurement process. This provides a solid guarantee for obtaining accurate permeability coefficient measurement results.

[0103] During the installation and use of the measuring instrument, when the base 100 applies force to the sealing rubber ring 300, causing it to deform, the gap provides the necessary expansion and contraction space for the sealing rubber ring 300. This prevents the sealing rubber ring 300 from excessively deforming or even breaking due to mutual compression, greatly extending its service life and reducing measurement errors and equipment failure probability caused by damage to sealing components. The gap also helps to balance the air pressure inside and outside the measuring instrument, ensuring that the sealing rubber ring 300 can perform its sealing function normally under different environmental conditions, thus improving the stability and adaptability of the measuring instrument.

[0104] The three sealing rubber rings 300 have the same level of flexibility, exceeding that of the outer sealing ring 200. This design offers numerous advantages. Due to their higher flexibility, the sealing rubber rings 300 can better conform to the microscopic irregularities of the measured object's surface. When the measuring instrument is mounted on the object, the base 100 applies a force to the three sealing rubber rings 300, causing them to deform. Because they have the same initial height, the three sealing rubber rings 300 remain synchronized during deformation, collectively adapting to pressure changes on the measured object's surface. Ultimately, the deformed heights of the three sealing rubber rings 300 are equal to the height of the outer sealing ring 200, making the entire sealing structure more regular and stable, further enhancing the sealing effect. This uniform sealing structure not only improves the measuring instrument's sealing performance but also makes it more aesthetically pleasing and harmonious in appearance.

[0105] The liquid flowing from the on / off valve 410 is guided to the inner ring of the innermost sealing rubber ring 300. This design ensures the accuracy and controllability of the measurement process. The innermost sealing rubber ring 300, with its excellent sealing performance, precisely confines the liquid within the measurement area, preventing leakage into the surrounding environment and effectively reducing interference from external factors on the measurement results. Simultaneously, this layout makes the liquid flow path clear and singular, facilitating precise observation, analysis, and calculation by operators. Whether recording the liquid penetration time or assessing the permeability of the measured object, the results are more accurate and reliable, providing strong support for obtaining accurate permeability coefficients and contributing to improving the scientific rigor and professionalism of the measurement work.

[0106] In this embodiment, a pressure block 500 is also included, which presses against the upper surface of the base 100.

[0107] The pressure block 500 presses against the upper surface of the base 100, enhancing the overall stability of the measuring instrument. During measurement, especially when the measuring instrument is subjected to external vibrations, minor impacts, or under different working environmental conditions, the pressure block 500 effectively prevents displacement or shaking of the base 100 and the various components mounted on it. This ensures that the relative positions between the various parts of the measuring instrument remain accurate, avoiding any impact on measurement accuracy due to component position changes. For example, when measuring at construction sites, the surrounding environment may contain vibrations from various mechanical equipment. In this case, the pressure block 500 can effectively counteract the adverse effects of these vibrations, ensuring the stable operation of the measuring instrument. Furthermore, the pressure applied by the pressure block 500 to the base 100 further enhances the sealing effect between the sealing rubber ring 300 and the surface of the object being measured. By applying downward pressure to the base 100, it indirectly makes the sealing rubber ring 300 adhere more tightly to the surface of the object being measured. This additional pressure fills any tiny gaps that may exist between the sealing rubber ring 300 and the surface of the object being measured, preventing liquid from leaking out through these potential gaps. This improves the reliability of the entire sealing system and provides a more reliable guarantee for accurate measurement of the permeability coefficient. The presence of the pressure block 500 also facilitates the operation and fixation of the measuring instrument. When installing and removing the measuring instrument, operators can more easily position and fix it by pressing the pressure block 500, making the operation process more convenient and efficient. Furthermore, the placement of the pressure block 500 helps maintain the perpendicularity and flatness of the measuring instrument to the surface of the object being measured during the measurement process, ensuring that the liquid can penetrate evenly into the object, improving the accuracy and repeatability of the measurement results.

[0108] In this embodiment, the pressure block 500 is provided with a second through hole 510, through which the water storage cylinder 400 passes.

[0109] The second through hole 510 provides a precise positioning and support structure for the water storage cylinder 400. After passing through the second through hole 510, the water storage cylinder 400 can be accurately fixed at the center of the measuring instrument, ensuring the relative positional accuracy between the water storage cylinder 400, the base 100, and other components. The second through hole 510 enhances the stability of the water storage cylinder 400 to a certain extent, providing additional support points and reducing shaking and swaying during instrument operation. This support effect is particularly noticeable when the water storage cylinder 400 contains a certain amount of liquid. A stable water storage cylinder 400 ensures the stability and uniformity of liquid outflow, making the measurement process smoother and more reliable.

[0110] In this embodiment, an on / off valve 410 is provided at the bottom of the water storage cylinder 400.

[0111] The on / off valve 410 allows operators to precisely control the timing and flow rate of the liquid. During the measurement preparation phase, closing the on / off valve 410 safely stores the liquid in the storage tank 400, preventing premature liquid outflow from interfering with the measurement. When all preparations are complete and measurement is ready, simply opening the on / off valve 410 accurately according to the measurement requirements allows an appropriate amount of liquid to flow into the measurement area surrounded by the sealing rubber ring 300 at a predetermined speed and flow rate. The on / off valve 410 effectively controls the initial flow time and flow rate of the liquid, thereby reducing measurement errors caused by unstable liquid flow or inaccurate outflow. For example, when measuring the permeability coefficient of materials with extremely high requirements for liquid permeation volume and time, the on / off valve 410 ensures that the liquid outflow conditions remain consistent for each measurement, improving the repeatability and comparability of the measurement results.

[0112] In this embodiment, the water storage cylinder 400 is equipped with graduations.

[0113] The graduations on the water storage tank 400 provide an intuitive and accurate reference for permeability coefficient measurement, clearly displaying the remaining liquid level within the tank. During measurement, operators can monitor liquid consumption at any time by observing the graduations, allowing for better control of the measurement progress. Since permeability coefficient measurement is closely related to the outflow rate, the graduations enable operators to accurately control the amount of liquid flowing from the tank 400, leading to more precise calculations of the permeability coefficient. This is particularly important when multiple measurements are required or when high accuracy is demanded. The graduations ensure consistent liquid outflow in each measurement, improving accuracy and repeatability. Furthermore, the graduations facilitate communication and collaboration among operators. In multi-person measurement projects, each operator can quickly understand the liquid level within the tank 400 by observing the graduations, eliminating the need for verbal explanations or complex calculations.

[0114] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A permeability coefficient measuring instrument, characterized in that, It includes a base, an outer sealing ring disposed at the bottom of the base, a sealing soft rubber ring disposed at the bottom of the base and located inside the outer sealing ring, and a water storage cylinder disposed on the base. The base is provided with a first through hole, the water storage cylinder passes through the first through hole, and an on / off valve is provided at the bottom of the water storage cylinder, through which liquid flowing out enters the inner ring of the sealing soft rubber ring.

2. The permeability coefficient measuring instrument according to claim 1, characterized in that, The cross-section of the sealing rubber ring is wavy.

3. The permeability coefficient measuring instrument according to claim 1, characterized in that, There is a gap between the sealing rubber ring and the outer sealing ring.

4. The permeability coefficient measuring instrument according to claim 1, characterized in that, The number of sealing soft rubber rings is one. The softness of the sealing soft rubber ring is higher than that of the outer sealing ring. The height of the sealing soft rubber ring when not subjected to external force is greater than that of the outer sealing ring. The base exerts a force on the sealing soft rubber ring and causes it to deform. The height of the sealing soft rubber ring after deformation is equal to that of the outer sealing ring.

5. The permeability coefficient measuring instrument according to claim 1, characterized in that, The sealing rubber rings are multiple and nested sequentially, with gaps between adjacent sealing rubber rings. The softness of the sealing rubber rings decreases from the inside to the outside, with the outermost sealing rubber ring being more soft than the outermost sealing ring. The height of the sealing rubber rings when not subjected to external force decreases from the inside to the outside, with the outermost sealing rubber ring being taller than the outermost sealing ring. The base exerts a force on the sealing rubber rings, causing them to deform. The height of the deformed sealing rubber rings is equal to the height of the outermost sealing ring. The liquid flowing out from the opening and closing valve enters the inner ring of the innermost sealing rubber ring.

6. The permeability coefficient measuring instrument according to claim 1, characterized in that, The sealing soft rubber rings are multiple, nested sequentially, with gaps between adjacent sealing soft rubber rings. The softness of the multiple sealing soft rubber rings is the same and greater than that of the outer sealing ring. The height of the multiple sealing soft rubber rings when not subjected to external force is the same and greater than that of the outer sealing ring. The base exerts a force on the multiple sealing soft rubber rings, causing them to deform. The height of the multiple sealing soft rubber rings after deformation is equal to the height of the outer sealing ring. The liquid flowing out from the opening and closing valve enters the inner ring of the innermost sealing soft rubber ring.

7. The permeability coefficient measuring instrument according to claim 1, characterized in that, It also includes a pressure block that presses against the upper surface of the base.

8. The permeability coefficient measuring instrument according to claim 7, characterized in that, The pressure block is provided with a second through hole, through which the water storage cylinder passes.

9. The permeability coefficient measuring instrument according to claim 1, characterized in that, The water storage cylinder is equipped with graduations.

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