Inflatable product performance detection equipment
By designing a performance detection equipment for inflatable products including air nozzle parts, air source components and detection components, the problems of cumbersome and easy damage of existing inflatable products are solved, and efficient and accurate airtightness and insulation performance detection are achieved.
Patent Information
- Application Number
- CN202421257471.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-04
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-06-04
AI Technical Summary
The airtight performance detection of existing inflatable products is cumbersome and easy to damage. Especially for large-volume or non-waterproof inflatable products, it is difficult to detect. At the same time, the airtightness and thermal insulation performance detection are separated, which is time-consuming and labor-intensive.
Design an inflatable product performance detection device, including air nozzle parts, air source components and inspection components. The detection part of the air nozzle piece is arranged inside the inflatable product, and the mounting part is located outside to facilitate connection of the air source assembly. The detection component includes a temperature sensor and a pressure sensor for real-time monitoring of temperature and air pressure inside and outside the inflatable product.
This equipment simplifies the airtightness and insulation performance detection of inflatable products, improves detection efficiency and accuracy, avoids damage to inflatable products, and can be suitable for inflatable products of all sizes.
Smart Images
Figure CN222618134U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of inflatable product detection, and further relates to an inflatable product performance detection device. Background Art
[0002] Inflatable products need to be tested for air tightness and thermal insulation before leaving the factory to prevent leakage or poor insulation of inflatable products that affect user experience. The air tightness test of existing inflatable products requires the inflatable product to be inflated and then immersed in water, and the air leakage is checked by the bubbles in the water. The operation steps are not only cumbersome but also very easy to damage the inflatable product and shorten the life of the inflatable product. It is extremely difficult to immerse large-volume inflatable products in water, especially some inflatable products cannot be immersed in water, such as non-waterproof mattresses, etc., which makes the air tightness test of existing inflatable products very difficult. As for the internal temperature changes of inflatable products, most of them simply look at the temperature changes inside the inflatable products, which ignores the changes in the temperature inside the inflatable products caused by the changes in the external environment temperature. In addition, the air tightness test and thermal insulation test are separate, which is time-consuming and labor-intensive. Utility Model Content
[0003] In view of the above technical problems, the purpose of the utility model is to provide an inflatable product performance testing device, in which an air nozzle piece is suitable for being installed at the inflation port of an inflatable product, and the detection portion of the air nozzle piece is arranged inside the inflatable product, so as to facilitate setting up a detection component for detecting the internal data of the inflatable product; the installation portion is relatively arranged on the outside of the inflatable product, so as to facilitate the connection of the air source component with the inflatable product, and the utility model is easy to use, has a wide applicability, and has a high detection efficiency.
[0004] In order to achieve the above-mentioned object, the utility model provides an inflatable product performance detection device, including an air nozzle, an air source component and a detection component, the air nozzle component includes a mounting portion, a connecting portion and a detection portion, the connecting portion connects the detection portion and the mounting portion, the connecting portion is suitable for being fixedly mounted on the inflation port of the inflatable product so that the detection portion reaches the inside of the inflatable product, and the mounting portion is relatively arranged on the outside of the inflatable product;
[0005] The air source component is connected to the mounting portion of the air nozzle member, and the air source component is suitable for introducing or extracting gas of a specified air pressure into the inflatable product;
[0006] The detection component includes a first temperature sensor, a first air pressure sensor, a second temperature sensor, and a second air pressure sensor; the first temperature sensor is installed at an end of the detection part away from the connecting part and is suitable for detecting the temperature inside the inflatable product, the first air pressure sensor is connected to the inside of the inflatable product and is suitable for detecting the air pressure inside the inflatable product; the second air pressure sensor and the second temperature sensor are arranged in the external environment and are suitable for detecting atmospheric pressure and temperature.
[0007] In some embodiments, the air nozzle member has a connecting channel, the connecting channel passes through the mounting portion and the connecting portion and connects the air source component and the inflatable product;
[0008] The end of the detection part away from the connecting part is relatively located in the middle of the inflatable product. The detection component includes a first temperature sensor, which is arranged at the end of the detection part away from the connecting part. The first temperature sensor is suitable for detecting the temperature inside the inflatable product.
[0009] In some embodiments, the air source assembly includes an inflation device, an exhaust device, a first air pipe and a second air pipe, the first air pipe connects the mounting portion and the inflation device, the second air pipe connects the first air pipe, and the exhaust device is provided on the second air pipe.
[0010] In some embodiments, the gas source assembly further includes a first ball valve, a first solenoid valve, and a second ball valve;
[0011] The first ball valve and the first solenoid valve are sequentially arranged in the first air pipe at intervals, the second ball valve is arranged in the second air pipe, and the connection between the second air pipe and the first air pipe is relatively located between the first solenoid valve and the air nozzle.
[0012] In some embodiments, the gas source assembly further includes a gas filter, which is installed in the first gas pipe and relatively located between the inflation device and the first ball valve.
[0013] In some embodiments, a third air pipe is further included, wherein the third air pipe is connected to the first air pipe and a connection between the third air pipe and the first air pipe is relatively located between the first solenoid valve and the air nozzle member;
[0014] A circuit board is arranged in the third air pipe, and the detection assembly further comprises a first air pressure sensor, which is arranged on the circuit board and is suitable for detecting the air pressure in the inflatable product.
[0015] In some embodiments, the detection component further includes a first air pressure sensor, which is also disposed at an end of the detection portion away from the connecting portion and relatively located in the middle of the inflatable product.
[0016] In some embodiments, the detection component further includes a second air pressure sensor and a second temperature sensor, wherein the second air pressure sensor and the second temperature sensor are disposed in the environment and are suitable for detecting atmospheric pressure and temperature.
[0017] In some embodiments, a data acquisition module is further included, and the data acquisition module is connected to the first air pressure sensor, the second temperature sensor, the second air pressure sensor, and the second temperature sensor.
[0018] In some embodiments, a data processing module is further included, wherein the data processing module is connected to the data acquisition module and is suitable for calculating the first dynamic gas volume fluctuation rate, the first dynamic temperature fluctuation rate, and the second dynamic temperature fluctuation rate.
[0019] Compared with the prior art, the inflatable product performance testing device provided by the utility model has at least one of the following beneficial effects:
[0020] 1. The air nozzle piece is suitable for installation at the inflation port of the inflatable product. The detection part of the air nozzle piece is arranged inside the inflatable product, which is convenient for setting the detection component for detecting the internal data of the inflatable product; the installation part is relatively arranged outside the inflatable product, which is convenient for the air source component to connect with the inflatable product. It is easy to use, has wide applicability and high detection efficiency.
[0021] 2. The first temperature sensor is relatively located in the middle of the inflatable product and is far away from the side wall of the inflatable product, so that the detected temperature is more stable and more accurate, and the first temperature sensor is not affected by the side wall of the inflatable product and the ambient temperature and cannot accurately detect the temperature inside the inflatable product.
[0022] 3. The inflation device and the exhaust device are connected to the installation part through the first air pipe and the second air pipe respectively, so as to avoid mutual interference between the inflation device and the exhaust device, and the air source component only needs to be installed once, the operation steps are simple, and the installation efficiency is high.
[0023] 4. The air source assembly is also provided with a third air pipe, which is connected to the first air pipe and the connection between the third air pipe and the first air pipe is relatively located between the first solenoid valve and the air nozzle piece. A circuit board with a first air pressure sensor is provided in the third air pipe, and the first air pressure sensor is suitable for detecting the air pressure in the inflatable product.
[0024] 5. The second air pressure sensor and the second temperature sensor detect the ambient atmospheric pressure and temperature respectively, so as to calculate the second dynamic temperature fluctuation rate, and then judge the thermal insulation performance of the inflatable product according to the first dynamic temperature fluctuation rate and the second dynamic temperature fluctuation rate. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present utility model.
[0026] Figure 1 It is a structural diagram of an inflatable product performance testing device.
[0027] Description of Figure Numbers:
[0028] Air nozzle part 1, mounting part 11, connecting part 12, detecting part 13, inflatable product 10, air source component 2, inflatable equipment 21, first air pipe 210, first ball valve 211, first solenoid valve 212, gas filter 213, air extraction equipment 22, second air pipe 220, second ball valve 221, circuit board 23, third air pipe 230, detecting component 3, first temperature sensor 31, first air pressure sensor 32, second air pressure sensor 33, second temperature sensor 34, data acquisition module 4, data processing module 5. DETAILED DESCRIPTION
[0029] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.
[0030] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked. In this article, "one" not only means "only one", but also means "more than one".
[0031] It should be further understood that the term “and / or” used in the specification and appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.
[0032] In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.
[0033] In addition, in the description of this application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance. It should be noted that the above embodiments can be freely combined as needed. The above are only preferred implementations of the utility model. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications should also be regarded as the scope of protection of the utility model.
[0034] refer to Figure 1 The utility model provides an inflatable product performance testing device, including an air nozzle piece 1, an air source assembly 2 and a detection assembly 3. The air nozzle piece 1 includes a mounting portion 11, a connecting portion 12 and a detection portion 13. The connecting portion 12 connects the detection portion 13 and the mounting portion 11. The connecting portion 12 is suitable for being fixedly mounted on the inflation port of the inflatable product 10 so that the detection portion 13 reaches the inside of the inflatable product 10. The mounting portion 11 is relatively arranged on the outside of the inflatable product 10. The air source assembly 2 is connected to the mounting portion 11 of the air nozzle piece 1. The air source assembly 2 is suitable for inflating the inflatable product 10. The gas of the specified pressure is introduced into or extracted from the inflatable product 10; the detection component 3 includes a first temperature sensor 31, a first air pressure sensor 32, a second temperature sensor 34, and a second air pressure sensor 33; the first temperature sensor 31 is installed at the end of the detection part 13 away from the connecting part 12 and is suitable for detecting the temperature inside the inflatable product 10, and the first air pressure sensor 32 is connected to the inside of the inflatable product 10 and is suitable for detecting the air pressure inside the inflatable product 10; the second air pressure sensor 33 and the second temperature sensor 34 are arranged in the external environment and are suitable for detecting the atmospheric pressure and temperature.
[0035] In this embodiment, the air nozzle piece 1 is suitable for being installed at the inflation port of an inflatable product 10. The detection portion 13 of the air nozzle piece 1 is arranged inside the inflatable product 10, which is convenient for setting up a detection component 3 for detecting the internal data of the inflatable product; the installation portion 11 is relatively arranged on the outside of the inflatable product 10, which is convenient for the air source component 2 to connect with the inflatable product 10. It is easy to use, has a wide applicability, and has a high detection efficiency.
[0036] Specifically, the inflatable product is provided with an inflation port, through which gas can be injected into the inflatable product, so that the inflatable product expands and takes shape. When inspecting the inflatable product 10, it is only necessary to install the connecting portion 12 of the air nozzle piece 1 at the inflation port of the inflatable product 10 to start the inspection, without immersing the inflatable product 10 in water, to protect the inflatable product 10, and to inject and extract gas into and out of the inflatable product through the air source component 2 connected to the air nozzle piece 1. The air nozzle piece 1 has a connecting channel, which passes through the mounting portion 11 and the connecting portion 12 and connects the air source component 2 and the inflatable product 10; the end of the detection portion 13 away from the connecting portion 12 is relatively located in the middle of the inflatable product 10, and the detection component 3 includes a first temperature sensor 31, which is arranged at the end of the detection portion 13 away from the connecting portion 12, and the first temperature sensor 31 is suitable for detecting the temperature inside the inflatable product 10. In this embodiment, the first temperature sensor 31 is relatively located in the center of the inflatable product 10, and the first temperature sensor 31 is far away from the side wall of the inflatable product 10, so that the detected temperature is more stable and more accurate, and the first temperature sensor 31 is not affected by the side wall of the inflatable product 10 and the ambient temperature and cannot accurately detect the temperature inside the inflatable product 10. Of course, the detection component 3 also includes a first air pressure sensor 32. In one embodiment, the first air pressure sensor 32 is also arranged at one end of the detection part 13 away from the connecting part 12 and relatively located in the middle of the inflatable product 10. The detection component 3 also includes a first air pressure sensor 32, which can also be arranged at one end of the detection part 13 away from the mounting part 11. In another variant embodiment, the first air pressure sensor 32 can also be arranged on the air source component 2, and the air source component 2 is connected to the inside of the inflatable product 10. More specifically, the air pressure and temperature inside the inflatable product 10 are detected to calculate the first dynamic air volume fluctuation rate and the first dynamic temperature fluctuation rate of the inflatable product 10, and then judge the air tightness and thermal insulation performance of the inflatable product 10.
[0037] It is worth noting that the connecting hole can also pass through the detection portion 13 , so that the end of the connecting hole is also located in the middle of the inflatable product 10 .
[0038] In a modified embodiment, a sliding member is further provided, and a sliding channel is provided on the air nozzle member 1. The sliding member is suitable for passing through the sliding channel and is sealed and connected to the air nozzle member. At this time, a first temperature sensor 31 is provided at one end of the sliding member located in the inflatable product 10. The sliding member can be driven to slide into the inflatable product 10 in the sliding channel so that the end of the sliding member located in the inflatable product 10 is relatively located in the center of the inflatable product 10, which has a stronger range of application and does not require the size of the detection part 13 to be adjusted according to the inflatable product 10 so that the first temperature sensor 31 is located in the center of the inflatable product 10.
[0039] Furthermore, the air source assembly 2 includes an inflation device 21, an exhaust device 22, a first air pipe 210 and a second air pipe 220. The first air pipe 210 connects the mounting portion 11 and the inflation device 21, the second air pipe 220 connects the first air pipe 210, and the exhaust device 22 is provided on the second air pipe 220.
[0040] In this embodiment, the inflation device 21 and the exhaust device 22 are connected to the installation part 11 through the first air pipe 210 and the second air pipe 220 respectively, so as to avoid mutual interference between the inflation device 21 and the exhaust device 22, and the air source component 2 only needs to be installed once, the operation steps are simple, and the installation efficiency is high.
[0041] Specifically, the gas source assembly 2 further includes a first ball valve 211, a first solenoid valve 212 and a second ball valve 221; the first ball valve 211 and the first solenoid valve 212 are sequentially arranged at intervals on the first air pipe 210, the second ball valve 221 is arranged on the second air pipe 220, and the connection between the second air pipe 220 and the first air pipe 210 is relatively located between the first solenoid valve 212 and the air nozzle 1. The first ball valve 211 and the second ball valve 221 respectively control the switch of the inflatable device 21 and the air extraction device 22, and the first solenoid valve 212 can control the inflation amount of the inflatable device 21, so that the gas at a specified pressure is maintained in the inflatable product 10. The connection between the second air pipe 220 and the first air pipe 210 is relatively located between the first solenoid valve 212 and the air nozzle 1, so that the inflatable device 21 and the air extraction device 22 are separately arranged.
[0042] It is worth noting that the gas source assembly 2 also includes a gas filter 213, which is installed in the first gas pipe 210 and relatively located between the inflatable device 21 and the first ball valve 211. The gas filter 213 can filter impurities such as dust and oil to ensure that the inflatable product 10 is clean. In a modified embodiment, an integrated inflation and exhaust device can also be provided, which can complete both inflation and exhaust operations, that is, the inflatable device 21 and the exhaust device 22 are the same device.
[0043] Furthermore, it also includes a third air pipe 230, which is connected to the first air pipe 210 and the connection between the third air pipe 230 and the first air pipe 210 is relatively located between the first solenoid valve 212 and the air nozzle piece 1; a circuit board 23 is provided in the third air pipe 230, and the detection component 3 also includes a first air pressure sensor 32, which is arranged on the circuit board 23 and is suitable for detecting the air pressure in the inflatable product 10.
[0044] In this embodiment, the air source assembly 2 is further provided with a third air pipe 230, the third air pipe 230 is connected to the first air pipe 210, and the connection between the third air pipe 230 and the first air pipe 210 is relatively located between the first solenoid valve 212 and the air nozzle 1, and a circuit board 23 with a first air pressure sensor 32 is provided in the third air pipe 230, and the first air pressure sensor 32 is suitable for detecting the air pressure in the inflatable product 10. Specifically, the circuit board 23 is also connected to the first solenoid valve 212 and controls the opening and closing of the first solenoid valve 212.
[0045] In a modified embodiment, the detection assembly 3 further includes a first air pressure sensor 32 , which is also disposed at an end of the detection portion 13 away from the connection portion 12 and relatively located in the middle of the inflatable product 10 .
[0046] Furthermore, the detection component 3 also includes a second air pressure sensor 33 and a second temperature sensor 34. The second air pressure sensor 33 and the second temperature sensor 34 are arranged in the environment and are suitable for detecting the atmospheric pressure and temperature.
[0047] In this embodiment, the second air pressure sensor 33 and the second temperature sensor 34 detect the ambient atmospheric pressure and temperature respectively, so as to calculate the second dynamic temperature fluctuation rate, and then judge the thermal insulation performance of the inflatable product 10 according to the first dynamic temperature fluctuation rate and the second dynamic temperature fluctuation rate.
[0048] Specifically, it also includes a data acquisition module 4, which is connected to the first air pressure sensor 32, the second temperature sensor 34, the second air pressure sensor 33 and the second temperature sensor 34. It also includes a data processing module 5, which is connected to the data acquisition module 4 and is suitable for calculating the first dynamic air volume fluctuation rate, the first dynamic temperature fluctuation rate and the second dynamic temperature fluctuation rate.
[0049] Furthermore, the detection equipment of the present application uses a detection method, which only needs to obtain the air pressure and temperature values of the product to be tested and the qualified product at a specific time, so as to calculate the dynamic air volume fluctuation rate of the product to be tested and the dynamic standard air volume fluctuation rate of the qualified product, and then compare the dynamic air volume fluctuation rate and the dynamic standard air volume fluctuation rate to determine whether the air tightness of the product to be tested meets the standard. The detection process is simple and convenient and has a wide applicability. Moreover, the inspection method fully considers the temperature variables, and the test value quantification is more accurate.
[0050] A method for testing the performance of an inflatable product of the present application includes:
[0051] S101: Fill the product to be tested with gas of a specified pressure, leave the product to be tested to stand for a predetermined time, and collect the gas pressure and temperature data in the product to be tested at several specific moments.
[0052] Specifically, according to the ideal gas state equation PV = nRT. The air pressure inside the product to be tested is variable, and the temperature change of the product to be tested will also cause the air pressure change of the product to be tested. Therefore, it is one-sided to judge the airtight performance of the product to be tested by only considering the air pressure change inside the product to be tested. In extreme cases, the external environment temperature suddenly drops, which will cause the internal temperature of the product to be tested to decrease, and the air pressure gap, but the product to be tested is not actually leaking and still meets the airtightness requirements, which is very easy to cause misjudgment. Therefore, it is necessary to comprehensively consider the air pressure and temperature inside the inflatable product. The product to be tested is left to stand for a predetermined time. In this application, the predetermined time is 48 hours. Several specific moments are set within the preset time. The previous specific moment and the next specific moment are separated by the same time. For example, in order to detect more accurately, the adjacent specific moments in this application are separated by two hours, that is, the air pressure and temperature of the product to be tested at 24 specific moments are measured. Of course, the predetermined time and specific moment can be adjusted according to the needs of the product to be tested, and this application is not further limited.
[0053] S102 calculates the dynamic gas volume fluctuation rate of the product to be detected at several specific moments according to the gas pressure and temperature data inside the product to be detected at several specific moments.
[0054] Specifically, the air pressure P of the product to be tested at the previous specific moment n-1 and temperature T n-1 , the air pressure P of the product to be tested at a specific moment n and temperature T n , the dynamic gas volume fluctuation rate Δn% of the product to be tested at a specific moment
[0055] The calculation of the dynamic gas volume fluctuation rate of the product to be tested specifically includes:
[0056] S201 obtains the internal air pressure P of the product to be tested at the previous specific moment n-1 and temperature data T n-1 , the air pressure P in the product to be tested at a specific moment n and temperature data T n ;
[0057] S202 Obtain the internal volume V of the product to be tested at the previous specific moment n-1 , at a specific moment, the body V of the product to be tested n , calculate the gas volume n of the product to be detected at a specific moment before the product to be detected n-1 , The gas volume n of the product to be detected at a specific time after the product to be detected n ,
[0058] S203 calculates the gas volume fluctuation Δn of the product to be detected between the previous specific moment and the next specific moment according to the gas volume of the product to be detected at the previous specific moment and the gas volume of the product to be detected at the next specific moment,
[0059] S204: Calculate the dynamic gas volume fluctuation rate Δn of the product to be detected at the next specific moment according to the gas volume fluctuation between the previous specific moment and the next specific moment. n %,
[0060] The change between the volume of the product to be detected at the previous specific moment and the volume of the product to be detected at the next specific moment can be ignored, so the volume of the product to be detected at the previous specific moment is approximately equal to the volume of the product to be detected at the next specific moment, that is, V n =V n-1 ,but
[0061] Furthermore, S103 obtains the dynamic standard air volume fluctuation rate of the qualified product at the same specific moment, and judges whether the air tightness of the product to be tested meets the standard according to the size of the dynamic air volume fluctuation rate and the dynamic standard air volume fluctuation rate at the same specific moment; if the dynamic air volume fluctuation rates at the same specific moment are all smaller than the dynamic standard air volume fluctuation rate, the air tightness performance of the inflatable product meets the standard.
[0062] The dynamic standard gas volume fluctuation rate of qualified products at the same specific time includes:
[0063] S301: injecting the qualified product with the minimum standard air pressure P that meets the minimum standard air pressure of the qualified product. a The qualified product is allowed to stand for a predetermined time, and the gas pressure and temperature data inside the qualified product at the same specific moment are collected.
[0064] S302 determines the internal pressure P of the qualified product at the previous specific moment. a-1 and temperature data T n-1 , the air pressure P of the qualified product at the next specific moment a and temperature data T n , calculate the dynamic standard gas volume fluctuation rate Δn of the qualified product at the next specific moment a %, It is worth noting that the qualified product and the product to be tested are left to stand for the same time and the air pressure and temperature data are collected at the same specific moment, and the dynamic standard air volume fluctuation rate of the qualified product and the dynamic air volume fluctuation rate of the product to be tested at the same specific moment are compared, so as to judge the air tightness of the product to be tested. It is worth noting that the calculation of the dynamic standard air volume fluctuation rate of the qualified product can be carried out simultaneously with the product to be tested, and the dynamic standard air volume fluctuation rate of the qualified product and the dynamic air volume fluctuation rate of the product to be tested can be calculated simultaneously, or the dynamic standard air volume fluctuation rate of the qualified product can be prepared in advance, and only the product to be tested is measured and then the measured and calculated dynamic air volume fluctuation rate is compared with the dynamic standard air volume fluctuation rate of the qualified product calculated in advance.
[0065] Judging whether the air tightness of the product to be tested meets the standard according to the magnitude of the dynamic air volume fluctuation rate and the dynamic standard air volume fluctuation rate at the same specific time specifically includes:
[0066] S401 generates a gas volume fluctuation rate characteristic curve according to the dynamic gas volume fluctuation rate of the product to be tested at several specific moments;
[0067] S402: creating a gas volume standard fluctuation rate characteristic curve according to the dynamic standard gas volume fluctuation rate of the qualified product at a certain time;
[0068] S403 compares the gas volume fluctuation rate characteristic curve of the product to be tested with the gas volume standard fluctuation rate characteristic curve of the qualified product. If the tested gas volume fluctuation rate characteristic curve is always below the qualified gas volume standard fluctuation rate characteristic curve, the inflatable product meets the standard. If the gas volume fluctuation rate characteristic curve of the product to be tested is greater than the gas volume standard fluctuation rate characteristic curve of the qualified product at any specific moment, the airtightness performance of the product to be tested is unqualified.
[0069] Furthermore, the present application can also determine the thermal insulation performance of the product to be tested by the temperature change of the product to be tested and the ambient temperature change. Testing the thermal insulation performance of the inflatable product specifically includes:
[0070] S501 determines the temperature T of the product to be tested at the previous specific moment. n-1 and the temperature T at a specific moment in time n , calculate the dynamic temperature fluctuation rate ΔT to be detected at a specific moment in the future n %,
[0071]
[0072] S502 is based on the temperature T of the external environment at the previous specific moment. a-1 and the temperature T at a specific moment in time a , calculate the ambient dynamic temperature fluctuation rate ΔT of the external environment at a specific momenta %, S503 determines whether the thermal insulation performance of the equipment to be tested meets the standard based on the fluctuation range of the dynamic temperature fluctuation rate of the product to be tested and the dynamic temperature fluctuation rate of the external environment. If the fluctuation range of the dynamic temperature fluctuation rate of the product to be tested is smaller than the fluctuation range of the dynamic temperature fluctuation rate of the external environment, the thermal insulation performance of the product to be tested meets the standard.
[0073] Further, judging whether the thermal insulation performance of the device to be tested meets the standard according to the fluctuation range of the dynamic temperature fluctuation rate of the product to be tested and the dynamic temperature fluctuation rate of the external environment specifically includes:
[0074] S601, according to the dynamic temperature fluctuation rate of the product to be detected at several specific moments, prepare a dynamic temperature fluctuation rate characteristic curve of the product to be detected;
[0075] S602: creating a characteristic curve of the dynamic temperature fluctuation rate of the external environment according to the dynamic temperature fluctuation rate of the external environment at a certain time;
[0076] S603: If the fluctuation range of the dynamic temperature fluctuation rate of the product to be tested is smaller than the dynamic temperature fluctuation rate of the external environment, the thermal insulation performance of the product to be tested meets the standard.
[0077] In a modified embodiment, judging whether the thermal insulation performance of the device to be tested meets the standard according to the fluctuation range of the dynamic temperature fluctuation rate of the product to be tested and the dynamic temperature fluctuation rate of the external environment further specifically includes:
[0078] S701 calculates the dynamic temperature fluctuation range of the product to be tested within a predetermined time according to the dynamic temperature fluctuation rate of the product to be tested at several specific moments;
[0079] S702 calculates the dynamic temperature fluctuation range of the external environment within a predetermined time according to the dynamic temperature fluctuation rate of the external environment at a certain specific time;
[0080] S703 compares the dynamic temperature fluctuation range of the product to be tested within a predetermined time with the dynamic temperature fluctuation range of the external environment. If the dynamic temperature fluctuation range of the product to be tested is smaller than the dynamic temperature fluctuation range of the external environment, the thermal insulation performance of the product to be tested meets the standard.
[0081] It is worth noting that the maximum and minimum values of the dynamic ambient temperature fluctuation rate of the product to be tested and the maximum and minimum values of the dynamic ambient temperature fluctuation rate of the external environment can be compared with the difference between the maximum and minimum values to determine whether the thermal insulation performance of the product to be tested meets the standard.
[0082] It should be noted that the above embodiments can be freely combined as needed. The above are only preferred implementations of the utility model. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications should also be regarded as the protection scope of the utility model.
Claims
1. An inflatable product performance testing device, characterized in that: include: An air nozzle piece, the air nozzle piece comprising a mounting portion, a connecting portion and a detecting portion, the connecting portion connecting the detecting portion and the mounting portion, the connecting portion being suitable for being fixedly mounted on the inflation port of an inflatable product so that the detecting portion reaches the inside of the inflatable product, and the mounting portion being relatively arranged on the outside of the inflatable product; An air source component, the air source component is connected to the mounting portion of the air nozzle member, and the air source component is suitable for introducing or extracting gas of a specified air pressure into an inflatable product; A detection component, the detection component includes a first temperature sensor, a first air pressure sensor, a second temperature sensor, and a second air pressure sensor; the first temperature sensor is installed at an end of the detection part away from the connecting part and is suitable for detecting the temperature inside the inflatable product, the first air pressure sensor is connected to the inside of the inflatable product and is suitable for detecting the air pressure inside the inflatable product; the second air pressure sensor and the second temperature sensor are arranged in the external environment and are suitable for detecting atmospheric pressure and temperature.
2. An inflatable product performance testing device according to claim 1, characterized in that: The air nozzle member has a connecting channel, the connecting channel passes through the mounting portion and the connecting portion and connects the air source component and the inflatable product; One end of the detection part away from the connection part is relatively located in the middle of the inflatable product. The detection component includes a first temperature sensor, which is arranged at the end of the detection part away from the connection part.
3. An inflatable product performance testing device according to claim 2, characterized in that: The air source assembly includes an inflation device, an exhaust device, a first air pipe and a second air pipe. The first air pipe connects the mounting portion and the inflation device, the second air pipe connects the first air pipe, and the exhaust device is provided on the second air pipe.
4. An inflatable product performance testing device according to claim 3, characterized in that: The gas source assembly also includes a first ball valve, a first solenoid valve and a second ball valve; The first ball valve and the first solenoid valve are sequentially arranged in the first air pipe at intervals, the second ball valve is arranged in the second air pipe, and the connection between the second air pipe and the first air pipe is relatively located between the first solenoid valve and the air nozzle.
5. An inflatable product performance testing device according to claim 4, characterized in that: The gas source assembly further includes a gas filter, which is installed on the first gas pipe and relatively located between the inflation device and the first ball valve.
6. The inflatable product performance testing device according to claim 4, characterized in that: It also includes a third air pipe, the third air pipe is connected to the first air pipe, and the connection between the third air pipe and the first air pipe is relatively located between the first solenoid valve and the air nozzle member; A circuit board is disposed in the third air pipe, and the first air pressure sensor is disposed on the circuit board.
7. The inflatable product performance testing device according to claim 2, characterized in that: The first air pressure sensor is arranged at one end of the detection portion away from the connecting portion and relatively located in the middle of the inflatable product.
8. The inflatable product performance testing device according to claim 1, characterized in that: It also includes a data acquisition module, which is connected to the first air pressure sensor, the second temperature sensor, the second air pressure sensor and the second temperature sensor.
9. An inflatable product performance testing device according to claim 8, characterized in that: It also includes a data processing module, which is connected to the data acquisition module and is suitable for calculating the first dynamic gas volume fluctuation rate, the first dynamic temperature fluctuation rate and the second dynamic temperature fluctuation rate.