Mattress air permeability detection device

Abstract

The utility model relates to a mattress air permeability detection device. A detection result of an existing detection device cannot be directly observed by an observer, so that the observation experience is influenced. The detection device comprises a cabinet body, an air supply structure and a detection structure are arranged on the cabinet body, the detection structure comprises a detection cavity used for containing a mattress and a detection piece with a detection ball, the air supply structure generates constant-pressure airflow, and the airflow penetrates through the mattress and drives the detection ball to vertically float in the detection piece. The air permeability of the mattress is detected through air flow. The air supply structure conveys constant-pressure air flow to the mattress, the detection part receives the air flow passing through the mattress and visually reflects the flow of the air flow through the floating height of the detection ball, the floating height of the detection ball is used for replacing original data, an observer can visually observe the air permeability of the mattress conveniently, and the observation experience is improved.

Description

Technical Field

[0001] This utility model relates to the field of bedding, specifically to a mattress breathability testing device. Background Technology

[0002] Existing mattresses include a multi-layered mattress body that provides comfortable support for the user. During use, the user is in close contact with the top surface of the mattress, causing moisture and sweat to accumulate on the mattress surface, increasing skin humidity and affecting sleep comfort. Therefore, mattress breathability is a crucial indicator for evaluating mattress performance. Existing mattress breathability testing devices measure breathability by detecting airflow loss through the mattress, obtaining breathability data. However, observers may not be able to understand this data, thus hindering their ability to intuitively perceive the mattress's breathability and negatively impacting the viewing experience. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a mattress breathability testing device. By setting up a testing element with a testing ball to detect the airflow passing through the mattress, the breathability performance of the mattress is demonstrated by the height of the testing ball's rise. This allows observers to intuitively experience the mattress's breathability and enhances the viewing experience.

[0004] This invention achieves its purpose through the following method: a mattress breathability testing device, comprising a cabinet, wherein the cabinet is equipped with an air supply structure and a testing structure. The testing structure includes a testing cavity for placing the mattress and a testing element with a testing ball. The air supply structure generates a constant-pressure airflow, which passes through the mattress and drives the testing ball to float vertically within the testing element. The breathability of the mattress is detected by the airflow rate. The air supply structure delivers a constant-pressure airflow to the mattress, and the testing element receives the airflow after it passes through the mattress. The airflow rate is visually reflected by the height of the testing ball's float. By using the height of the testing ball's float to replace the original data, it is convenient for observers to visually observe the mattress's breathability performance, thus improving the observation experience.

[0005] Preferably, the testing element is a vertically penetrating cylindrical structure. Inside the testing element is a vertically movable testing ball. The lower end of the testing element is connected to the top space of the testing cavity. Airflow passing through the mattress enters the testing element and drives the testing ball to float vertically. The cylindrical cavity inside the testing element provides space for the testing ball to move up and down, and also guides its movement. The lower end of the testing element is flush with the top surface of the mattress, facilitating the cavity to receive airflow passing through the mattress, thereby testing the mattress's breathability.

[0006] Preferably, there are at least three testing devices, which are distributed in different areas of the top surface of the mattress. By setting multiple distributed testing devices, each area of ​​the top surface of the mattress can be tested independently, which makes it convenient for observers to understand the breathability of each area of ​​the mattress at the same time.

[0007] Preferably, the detection ball is a balloon. The balloon has a small weight, allowing it to rise under a small airflow, thus facilitating visual observation. Increasing the balloon's sensitivity to rise and fall amplifies differences in airflow, making it easier for the observer to perceive these differences. The balloon's diameter is smaller than the cross-sectional diameter of the tube, ensuring the balloon can rise and fall freely within the tube while also creating a gap between the balloon and the inner wall of the tube for airflow to escape, facilitating the balloon's rising, falling, and resetting actions.

[0008] Preferably, the vertical projection of the detection chamber completely covers the mattress. An annular airbag band is provided on the inner wall of the detection chamber. The airbag band inflates and seals the gap between the outer wall of the mattress and the inner wall of the detection chamber. The detection chamber can completely enclose the mattress, allowing for the testing of the breathability of different areas of the mattress. A gap exists between the inner wall of the detection chamber and the outer wall of the mattress. An annular airbag band is placed within this gap. The airbag inflates and seals the gap between the inner wall of the detection chamber and the outer wall of the mattress. This not only positions the mattress but also effectively seals the gap, ensuring that all airflow can pass through the mattress, effectively improving the accuracy of the mattress breathability test and preventing airflow from leaking out through the gap.

[0009] Preferably, the airbag belt is connected to the air supply structure via a duct to provide an air source for the airbag belt. The air source for the airbag belt comes from the air supply structure, effectively improving the efficiency of the air supply structure and simplifying its structure for easier use.

[0010] Preferably, the detection chamber is located on the top surface of the cabinet, and a transparent glass cover is provided above the cabinet to enclose the detection structure. Raising the height of the detection chamber by using the cabinet facilitates observation by the observer. The observer can directly view the detection structure through the transparent glass cover, which not only enhances the observation experience but also protects the detection structure.

[0011] Preferably, the air supply structure is housed within a cabinet and includes a gas generating component and a gas delivery component. The gas delivery component includes a funnel-shaped inflatable hood positioned below the detection chamber. The inflatable hood is wider at the top and narrower at the bottom. The top of the inflatable hood has a square opening communicating with the bottom of the detection chamber, and the bottom has an air pipe connected to the gas generating component. The vertical projection of the mattress falls entirely within the opening, ensuring that all areas of the mattress's underside receive airflow from the air pipe. The gas generating component generates a high-pressure airflow and delivers it evenly to all areas of the mattress's underside through the gas delivery component, ensuring that each area receives an equal amount and pressure of airflow, thereby making the rise height of the detection balls in adjacent detection components comparable. The inflatable hood receives the airflow from the gas generating component and diffuses it evenly to all areas of the mattress after diffusion.

[0012] Preferably, a horizontally positioned diverter plate is provided at the inner edge of the opening, and diverter holes are provided on the diverter plate so that the airflow can be dispersed to each area of ​​the opening. The diverter plate is located at the opening to facilitate the diffusion of airflow from the inflation hood to each area of ​​the detection chamber, thereby ensuring that each area of ​​the mattress bottom surface receives an equal amount and pressure of airflow.

[0013] Preferably, the vertical projection of the tracheal port is located in the middle of the flow divider plate, and the density of the flow divider holes in the middle of the flow divider plate is less than that in the periphery of the flow divider plate, so as to ensure that the airflow in each area of ​​the opening is balanced. Each area of ​​the flow divider plate has flow divider holes of different densities. The airflow in the middle of the inflation hood cavity is greater than that in the periphery. By reducing the density of the flow divider holes in the middle of the flow divider plate, the airflow is driven to diffuse towards the periphery of the cavity; by increasing the density of the flow divider holes in the periphery of the flow divider plate, the airflow is increased, thereby ensuring that the airflow in each area of ​​the opening has a similar pressure and flow rate.

[0014] Preferably, the air pipe is equipped with a solenoid valve that controls the connection between the inflation hood and the gas generating component. By opening and closing the solenoid valve, the connection between the inflation hood and the gas generating component is controlled, thereby controlling the detection operation.

[0015] Preferably, the gas generating assembly includes an air pump and a gas storage tank. The air pump draws in outside air and stores it in the gas storage tank after compression, so as to provide an airflow with a preset pressure to the gas delivery assembly. The high-pressure airflow generated by the air pump is input into the gas storage tank for storage, which effectively reduces the instantaneous operating power of the air pump and obtains an airflow with the required pressure and volume for detection by extending the working time.

[0016] The beneficial effects of this utility model are as follows: the air supply structure delivers constant pressure airflow to the mattress, the detection element receives the airflow after passing through the mattress and the airflow is directly reflected by the rising height of the detection ball. The rising height of the detection ball replaces the original data, making it convenient for observers to visually observe the breathability of the mattress and improving the observation experience. Attached Figure Description

[0017] Figure 1 This is a cross-sectional view of the detection device.

[0018] Figure 2 This is a front view structural diagram of the inflatable hood;

[0019] Figure 3 This is a schematic diagram of the structure of the inflatable shroud;

[0020] Figure 4 This is a schematic diagram of the structure of the airbag belt;

[0021] Figure 5 This is a schematic diagram of the structure of the detection device;

[0022] In the diagram: 1. Cabinet, 2. Testing component, 3. Testing ball, 4. Mattress, 5. Airbag belt, 6. Transparent glass cover, 7. Inflatable cover, 8. Air pipe, 9. Diverter plate, 10. Diverter hole, 11. Solenoid valve, 12. Air pump, 13. Air tank, 14. Air duct. Detailed Implementation

[0023] The essential features of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0024] like Figure 1 The device shown includes a cabinet 1 with an air supply structure and a detection structure. The detection structure includes a detection chamber for placing a mattress 4 and a detection element 2 with a detection ball 3. The air supply structure generates a constant-pressure airflow, which passes through the mattress 4 and causes the detection ball 3 to float vertically within the detection element 2. The airflow rate is used to detect the breathability of the mattress 4. The air supply structure delivers a constant-pressure airflow to the mattress 4, and the detection element 2 receives the airflow after it passes through the mattress 4. The airflow rate is visually reflected by the height of the detection ball 3. Using the height of the detection ball 3 to replace the original data allows observers to visually observe the breathability performance of the mattress 4, improving the viewing experience.

[0025] In actual operation, the gas supply structure is installed inside the cabinet 1, including a gas generating component and a gas delivery component. The gas generating component includes a gas pump 12 and a gas storage tank 13, and the gas delivery component includes an inflation hood 7 (e.g., a funnel-shaped hood located below the detection chamber) Figure 2 As shown in the figure, a horizontally arranged diversion plate 9 is provided at the inner edge of the top opening of the inflatable cover 7.

[0026] In use, firstly, the air pump 12 generates a high-pressure airflow, which is input into the air tank 13 to accumulate enough airflow to meet the required pressure and volume for testing. Then, the airbag belt 5 is inflated to position the mattress 4 and seal the gaps. Next, the solenoid valve 11 is opened, and the high-pressure gas temporarily stored in the air tank 13 flows through the air pipe 8 to the inflation cover 7. The airflow diffuses once in the inflation cover 7 and then diffuses a second time through the diverter plate 9 with diversion holes 10, ensuring that each area of ​​the opening has an airflow that is approximately equal in volume and pressure. Then, the dispersed airflow is input upward into the detection chamber and passes through the mattress 4 from bottom to top before being received by the corresponding detection element 2. Finally, the detection element 2 receives the airflow from the mattress 4 and blows the detection ball 3 upward.

[0027] The above steps are used to test the breathability of mattress 4, providing a direct demonstration of its breathability to observers. The higher the height of the test ball 3, the greater the airflow received by the test element 2, indicating better breathability in the corresponding area of ​​mattress 4. Conversely, the lower the height of the test ball 3, the less airflow received by the test element 2, indicating poorer breathability in the corresponding area of ​​mattress 4. Since the airflow received by different areas of the mattress 4 tends to be at the same pressure and volume, the differences in breathability between different areas of mattress 4 can be directly assessed by comparing the height of the test ball 3, enhancing the demonstration effect. The gas generating component uses air with a constant pressure and volume pre-stored in the air tank 13 for testing. By collecting the rise data of the test ball 3, the breathability performance of different mattresses 4 can be directly compared.

[0028] In actual operation, the detection element 2 is a vertically penetrating cylindrical structure. Inside the detection element 2 is a vertically rising and falling detection ball 3. The lower end of the detection element 2 is connected to the top space of the detection cavity. Airflow passing through the mattress 4 enters the detection element 2 and drives the detection ball 3 to float vertically. The detection ball 3 is a balloon, with a diameter slightly smaller than the diameter of the tube cavity, creating an annular gap between the inner wall of the tube cavity and the balloon. This gap allows the airflow received by the detection element 2 to escape, facilitating the descent and resetting of the detection ball 3. Furthermore, by controlling the gap area, the airflow velocity can be reduced, ensuring that the airflow can temporarily remain within the tube cavity and propel the detection ball 3 upwards, effectively improving detection accuracy.

[0029] In practice, there are at least three detection elements 2, which are distributed in various areas of the top surface of the mattress 4. Preferably, five detection elements 2 are arranged around the perimeter and in the center of the top surface of the mattress 4 (e.g., ...). Figure 5 As shown, the breathability of each area of ​​the mattress 4 is tested. Furthermore, the number and placement of the testing elements 2 can be adjusted as needed, for example, three, four, or six elements can be used, all of which should be considered specific embodiments of this utility model.

[0030] In actual operation, the vertical projection of the detection cavity completely covers the mattress 4, and the inner wall of the detection cavity is provided with an annular airbag band 5 (e.g., Figure 4 As shown, the airbag band 5 inflates and seals the gap between the outer wall of the mattress 4 and the inner wall of the detection chamber. The airbag band 5 is connected to the air supply structure through the air duct 14 to provide an air source for the airbag band 5. The airbag band 5 is arranged around the perimeter of the mattress 4 and can receive high-pressure air from the air tank 13 through the air duct 14, causing the airbag band 5 to inflate and seal the gap, ensuring that the airflow used for detection will not leak out through the gap, effectively improving the detection accuracy.

[0031] In actual operation, the detection chamber is located on the top surface of the cabinet 1, and a transparent glass cover 6 is provided above the cabinet 1 to cover the detection structure. The cabinet 1 is used to house the gas generating components, which makes reasonable use of space and provides protection for the gas generating components. The transparent glass cover 6 is used to cover the mattress 4 and the detection structure, which not only allows the observer to directly view the detection ball 3, but also protects the detection structure and facilitates the replacement of the mattress 4 by disassembly.

[0032] In actual operation, the inflatable cover 7 is shaped like a larger top and a smaller bottom. The top of the inflatable cover 7 has a square opening that communicates with the bottom of the detection chamber, and the bottom has an air pipe 8 connected to the gas generating component. The vertical projection of the mattress 4 falls completely into the opening, so that all areas of the bottom surface of the mattress 4 can receive airflow from the air pipe 8. The air pipe 8 receives the airflow from the gas tank 13 and diffuses it using the inflatable cover 7, so that the concentrated airflow can diffuse to all areas of the opening, and then undergo secondary diffusion through the diverter 9, ensuring that the airflow received by all areas of the bottom surface of the mattress 4 has a similar air pressure and flow rate, ensuring that the rising height of each detection ball 3 can be directly compared.

[0033] In actual operation, the flow divider plate 9 is provided with flow divider holes 10 (e.g., Figure 3 As shown, the airflow is dispersed to various areas of the opening through the diversion holes 10. The vertical projection of the air pipe 8 port is located in the middle of the diversion plate 9. The density of the diversion holes 10 in the middle of the diversion plate 9 is less than that of the diversion holes 10 at the periphery of the diversion plate 9, so as to make the airflow in each area of ​​the opening uniform. The diversion plate 9 completely covers the opening, effectively diverting the airflow from the opening, thereby ensuring that each area of ​​the bottom surface of the mattress 4 receives airflow with the same parameters.

[0034] In actual operation, the air pipe 8 is equipped with a solenoid valve 11 that controls the connection between the inflation hood 7 and the gas generating assembly. Opening the solenoid valve 11 establishes communication between the inflation hood 7 and the gas storage tank 13, thus initiating the detection operation. Closing the solenoid valve 11 disconnects the inflation hood 7 from the gas storage tank 13, allowing the gas storage tank 13 to receive the airflow generated by the air pump 12 and accumulate enough air to meet the detection requirements. The air pump 12 draws in outside air, compresses it, and stores it in the gas storage tank 13 to provide an airflow with a preset pressure to the gas delivery assembly.

Claims

1. A bed mattress air permeability detection device, comprising a cabinet body (1), characterized in that, The cabinet (1) is provided with a gas supply structure and a detection structure, the detection structure includes a detection cavity for placing a mattress (4) and a detection piece (2) with a detection ball (3), the gas supply structure generates a constant pressure airflow, the airflow passes through the mattress (4) and drives the detection ball (3) to vertically float in the detection piece (2), and the airflow flow is detected to detect the air permeability of the mattress (4).

2. The mattress air permeability detection device of claim 1, wherein, The detection piece (2) is a vertically penetrating circular tubular structure, the detection piece (2) is provided with a vertically lifting detection ball (3), and the lower end of the detection piece (2) is connected with the top space of the detection cavity. The airflow passing through the mattress (4) enters the detection piece (2) and drives the detection ball (3) to vertically float.

3. The mattress air permeability detection device of claim 2, wherein, The detection piece (2) is at least three and is arranged in each region of the top surface of the mattress (4); or the detection ball (3) is a balloon.

4. The mattress air permeability detection device of claim 1, wherein, The vertical projection of the detection cavity completely covers the mattress (4), and the inner side wall of the detection cavity is provided with an annular air bag belt (5), which is inflated and expanded to block the gap between the outer side wall of the mattress (4) and the inner side wall of the detection cavity.

5. The mattress air permeability detection device of claim 4, wherein, The air bag belt (5) is connected with the gas supply structure through the air pipe (14) to obtain the gas source.

6. The mattress air permeability detection device of claim 1, wherein, The detection cavity is arranged on the top surface of the cabinet (1), and a transparent glass cover (6) covering the detection structure is arranged above the cabinet (1).

7. The mattress air permeability detection device according to any one of claims 1-6, wherein, The gas supply structure is arranged in the cabinet (1) and includes a gas generating assembly and a gas conveying assembly. The gas conveying assembly includes a gas charging cover (7) arranged below the detection cavity and in a funnel shape. The gas charging cover (7) is large at the top and small at the bottom. The top of the gas charging cover (7) is provided with a square opening which is in communication with the bottom of the detection cavity. The bottom is provided with an air pipe (8) connected with the gas generating assembly. The vertical projection of the mattress (4) completely falls into the opening, so that each region of the bottom surface of the mattress (4) can obtain the airflow from the air pipe (8).

8. The mattress air permeability detection device of claim 7, wherein, The inner edge of the opening is provided with a horizontally arranged flow distribution plate (9), and the flow distribution plate (9) is provided with flow distribution holes (10). The airflow is dispersed to each region of the opening through the flow distribution holes (10).

9. The mattress air permeability detection device of claim 8, wherein, The vertical projection of the port of the air pipe (8) is located in the middle of the flow distribution plate (9), the density of the flow distribution holes (10) in the middle of the flow distribution plate (9) is less than that of the flow distribution holes (10) at the periphery of the flow distribution plate (9), so that the airflow flow of each region of the opening is balanced; or the air pipe (8) is provided with an electromagnetic valve (11) for controlling the connection and disconnection state between the gas charging cover (7) and the gas generating assembly.

10. The mattress air permeability detection device of claim 7, wherein, The gas generating assembly includes a gas pump (12) and a gas storage tank (13). The gas pump (12) extracts the air outside and stores it in the gas storage tank (13) after compression, so as to provide the gas conveying assembly with an airflow with a preset air pressure.

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