Device and method for detecting air permeability of mattress material

Abstract

The invention relates to the technical field of mattress detection, in particular to a mattress material air permeability detection device and method.The mattress material air permeability detection device comprises a box base used for containing a mattress material and a built-in hollow compression roller, supports are fixedly connected to the positions, located above the box base, of the two sides of the box base, and a sliding frame is slidably connected to the tops of the supports; a lifting frame is arranged below the sliding frame, the bottom of the lifting frame is provided with a supporting plate for being rotationally connected with the pressing roller, and the top of the supporting frame is provided with an adjusting assembly for adjusting the position of the pressing roller. A plurality of air suction ports communicating with the interior of the pressing roller are evenly formed in the outer surface of the pressing roller, air pumps are fixedly connected to the two ends of the lifting frame, the output ends of the air pumps communicate with air pipes communicating with the interior of the pressing roller, and a plurality of sealing strips matched with the air suction ports are arranged in the pressing roller; and a gas blocking assembly is arranged in the compression roller.

Description

Technical Field

[0001] The present invention relates to the technical field of mattress detection, and in particular to a device and method for detecting air permeability of mattress materials. Background Art

[0002] Mattresses are indispensable sleeping products in people's daily lives, and their breathability directly affects the user's sleep quality and health. Therefore, testing the air permeability of mattress materials and evaluating their air permeability are of great significance to improving the quality of mattress products and meeting user needs. At present, air permeability testing technology has become relatively mature and has been widely used in many fields. In terms of air permeability testing of mattress materials, existing technologies mainly evaluate their air permeability by measuring the air permeability of materials under certain conditions. These technologies include but are not limited to air permeability testing through suction or exhaust methods, and determining their air permeability level by measuring the air pressure difference inside and outside the material at a constant suction or exhaust rate.

[0003] For example, the patent application with the prior art announcement number CN118518561 B discloses a mattress air permeability detection device, which relates to the field of mattress detection technology. The mattress air permeability detection device includes a body, one side of the body is tilted, and the other side of the body is U-shaped, the horizontal side of the body is rotatably connected to a plurality of conveying rollers, the bottom of the body is fixedly connected to four supporting legs, the surface of the body is provided with a fixing mechanism, the surface of the body is provided with a loading and unloading mechanism, and the surface of the body is provided with a detection mechanism. The mattress air permeability detection device, through the setting of the loading and unloading mechanism, the staff only needs to make the double-axis motor rotate forward and reverse to complete the loading and unloading of the mattress, which is simple and convenient to operate, so that the staff does not need to carry the mattress for detection, thereby improving the use effect of the device and the detection efficiency of the mattress. At the same time, the mattress is loaded and unloaded on one side of the body, thereby reducing the overall volume of the device, reducing the floor space occupied by the device, and facilitating the placement and transportation of the device.

[0004] The above-mentioned prior art can simultaneously and once-in-onely test the air permeability of three key parts of the mattress through a carefully designed testing mechanism. This innovation greatly improves the testing efficiency and enables us to accurately judge the uniformity of the air permeability of each part of the mattress. However, although this method has shown significant advantages in static testing, in actual application scenarios, the evaluation needs of the air permeability of mattresses are far more than that. In fact, the air permeability of a mattress is a dynamic process, which is affected by many factors, including but not limited to the user's weight distribution, lying posture, and the deformation ability of the mattress material under pressure. Therefore, relying solely on static air permeability testing, although it can provide a certain reference value, it is difficult to fully and truly reflect the air permeability of the mattress during actual use. In order to more accurately evaluate the air permeability of a mattress, we need to consider its performance under dynamic load. To this end, the present application proposes a mattress material air permeability detection device and detection method. Summary of the invention

[0005] The object of the present invention is to provide a mattress material air permeability detection device and detection method to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a mattress material air permeability detection device, comprising a box seat for placing mattress materials and a built-in hollow pressure roller, brackets are fixedly connected on both sides of the box seat and located above it, a slide is slidably connected to the top of the bracket, a lifting frame is arranged below the slide, a support plate for rotationally connecting the pressure roller is arranged at the bottom of the lifting frame, and an adjustment component for adjusting the position of the pressure roller is arranged at the top of the bracket;

[0007] The outer surface of the pressure roller is evenly provided with a plurality of air suction ports connected to the interior thereof, both ends of the lifting frame are fixedly connected with an air pump, the output end of the air pump is connected with an air pipe connected to the interior of the pressure roller, a multi-leaf sealing strip adapted to the plurality of air suction ports is arranged inside the pressure roller, and an air blocking component is arranged inside the pressure roller;

[0008] A hammer rod for hammering the pressure roller is arranged on one side of the air pump, and transmission components cooperating with the air blocking components are arranged on both sides of the support plate.

[0009] Preferably, a meter is fixedly connected to the outer surface of the air pipe, one end of the air pipe is fixedly connected to an air shell fixedly connected to a support plate, and a plurality of air vents for connecting the pressure roller and the air shell are provided inside the support plate, and both ends of the multi-leaf sealing strip are fixedly connected to fixing rods fixedly connected to the support plate.

[0010] Preferably, the air blocking assembly includes a connecting sleeve fixedly connected to the outer surface of the fixed rod, a plurality of through holes are evenly opened inside the connecting sleeve, and ball valve bodies are arranged in the plurality of through holes, one end of the plurality of ball valve bodies is fixedly connected to a rotating knob rotatably connected to the connecting sleeve, a connecting tube slidably connected to the connecting sleeve is fixedly connected to the inside of the pressure roller, and the outer surface of the rotating knob is provided with a torsion spring for its own reset.

[0011] Preferably, the transmission assembly includes an air return pipe connected to the air shell, one end of the air return pipe is connected to an air connecting pipe, one end of the hammer rod is fixedly connected to a transmission rod slidably connected to the air connecting pipe, a transmission disk is provided inside the air connecting pipe, guide grooves are provided on both sides of the transmission disk, reset grooves connected to the guide grooves are provided on both sides of the transmission disk, one end of the transmission rod extends to the interior of the hammer rod and is fixedly connected to a sliding seat slidably connected to the guide groove, and a reset spring is sleeved on the outer surface of the transmission rod for its own reset.

[0012] Preferably, one side of the support plate is fixedly connected with a fixing frame for supporting the air pipe, the inside of the air pipe is fixedly connected with a fixing plate, the inside of the fixing plate is rotatably connected with a rotating rod fixedly connected to the transmission disk, and the lifting frame is fixedly connected to the support plate via a spring rod.

[0013] Preferably, the interior of the air connecting pipe is slidably connected with a piston adapted thereto, one end of the piston is fixedly connected with a tension spring fixedly connected to the interior of the air connecting pipe, and the outer surface of the rotating rod is fixedly connected with a plurality of wind turbine blades.

[0014] Preferably, the adjustment assembly includes a screw rod rotatably connected to the top of the bracket, and the slide is threadedly connected to the screw rod, the top of the bracket is fixedly connected to a sliding rod for the slide to be slidably connected, and one side of the bracket is fixedly connected to a driving motor for driving the screw rod to rotate.

[0015] Preferably, a driving cylinder is fixedly connected to the bottom of the slide, an output end of the driving cylinder extends to the top of the slide and is fixedly connected to a top plate, both ends of the bottom of the top plate are fixedly connected to a plurality of guide rods slidably connected to the slide, and the bottoms of the plurality of guide rods are commonly connected to the top of the lifting frame.

[0016] Preferably, the top of the box seat is fixedly connected to two fixed slides, the outer surfaces of the two fixed slides are slidably connected to limit frames for fixing mattress materials, and the bottom of the box seat is evenly fixedly connected to a plurality of feet.

[0017] The present invention also provides a method for detecting air permeability of a mattress material, comprising the following steps:

[0018] S1. When in use, first place the mattress material to be tested on the top of the box seat;

[0019] S2. Then, the pressure roller is driven downward by operating the adjustment component to be pressed on the surface of the mattress material. At the same time, the air pump is turned on to suck air into the air pipe. At this time, the pressure roller is in a stationary state and the multi-leaf sealing strip blocks multiple suction ports, so that multiple suction ports located directly below the pressure roller generate suction, thereby measuring the air permeability of the mattress material. At the same time, the height of the pressure roller can be continuously adjusted to test the air permeability performance of the mattress material under different pressures.

[0020] S3. When it is necessary to test the air permeability and durability of different positions of the mattress material, the position of the pressure roller can be changed by operating the adjustment component, so that no suction is generated at the air inlet in cooperation with the air blocking component;

[0021] S4. At the same time, when the passage between the air pipe and the pressure roller is blocked, the suction force of the air pump will be transmitted to the transmission component, and the driving hammer rod will hammer on the surface of the pressure roller to make it vibrate.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. By driving the screw rod to rotate through the driving motor, the slide can be moved laterally along the slide rod, thereby adjusting the lateral position of the pressure roller, which makes the selection of the detection area more flexible. The telescopic movement of the driving cylinder can drive the lifting frame and the pressure roller to move up and down, and realize the precise adjustment of the height. This design is not only convenient for applying the pressure roller to the mattress material, but also can adjust the pressure applied as needed to simulate different usage scenarios and conditions. The setting of the guide rod ensures the stability of the lifting frame during the lifting process, and prevents the accuracy of the test results from being affected by shaking or offset. The suction ports evenly opened on the surface of the pressure roller are connected to the inside, and through the suction action of the air pump, uniform suction can be generated to achieve accurate measurement of the air permeability of the mattress material. The setting of the multi-leaf sealing strip effectively blocks the suction ports except those directly below the pressure roller, ensuring that only the suction ports in contact with the mattress material generate suction, thereby improving the accuracy and pertinence of the test. The use of the meter can monitor and record the air permeability data in real time, providing an objective basis for evaluating the air permeability of the mattress material.

[0024] 2. The air blocking component realizes automatic switching between the stationary and rolling states of the pressure roller through the design of the ball valve body and the rotating knob. When the pressure roller is stationary, the ball valve body remains open under the action of the torsion spring, allowing air flow to pass; when the pressure roller rolls, the rotation of the connecting pipe drives the rotating knob to rotate, and then drives the ball valve body to flip, blocking the channel, avoiding the suction from affecting the normal rolling of the pressure roller. This design improves the flexibility and accuracy of detection. The transmission component uses the gas flow in the air pipe to drive the wind turbine blades to rotate, and then drives the transmission disc and the slide seat to move. This design not only realizes the effective use of energy, but also avoids the noise and wear that may be caused by traditional mechanical transmission methods. When the pressure roller rolls and the channel is blocked, the suction of the air pump is transmitted to the return air pipe, generating negative pressure to absorb the piston to move, and then drives the hammer rod away from the pressure roller. As the transmission disc continues to rotate, the slide seat enters the reset groove, and the hammer rod is quickly reset under the action of the transmission rod, hammering the surface of the pressure roller to generate vibration. This design not only improves the efficiency and accuracy of durability testing, but also increases the fun and interactivity of testing. Through the cooperation of the air blocking component and the transmission component, the device realizes automatic switching between air permeability testing and durability testing. In the air permeability testing stage, the pressure roller is stationary and the channel is open, allowing air flow to pass and measure air permeability; in the durability testing stage, the pressure roller rolls and the channel is blocked, and the energy generated by the gas flow is used to drive the hammer rod to hammer the pressure roller, simulating the vibration and wear in actual use. In addition, the ingenious design of the fixed frame, fixed plate, rotating rod and other components ensures the stability and reliability of the transmission assembly. The setting of the spring rod and tension spring provides the necessary elasticity and reset force, so that the entire device can maintain stable operation during the testing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of a first three-dimensional structure of the present invention;

[0026] Figure 2 It is a schematic diagram of a second three-dimensional structure of the present invention;

[0027] Figure 3 This is a schematic diagram of the structure of the present invention without the box seat;

[0028] Figure 4 It is a structural schematic diagram of the regulating component in the present invention;

[0029] Figure 5 It is a schematic diagram of a partial cross-sectional structure of the lifting frame in the present invention;

[0030] Figure 6 It is a schematic diagram of the cross-sectional structure of the pressure roller in the present invention;

[0031] Figure 7 For the present invention Figure 6 A schematic diagram of the structure enlargement in the middle;

[0032] Figure 8 It is a schematic diagram of the explosion structure of the pressure roller and the multi-leaf sealing strip in the present invention;

[0033] Fig. 9 It is a schematic diagram of the structure of the connection sleeve and the connection pipe in the present invention;

[0034] Fig.10 It is a structural schematic diagram of the connecting pipe in the present invention;

[0035] Fig.11 It is a schematic diagram of the cross-sectional structure of the air pipe in the present invention;

[0036] Fig.12 It is a structural schematic diagram of the transmission plate in the present invention;

[0037] Fig.13 It is a schematic diagram of the structure of the cooperation between the transmission plate and the slide seat in the present invention.

[0038] In the figure: 100, box seat; 101, fixed slide; 102, limit frame; 103, mattress material; 104, bracket; 105, foot; 200, pressure roller; 201, support plate; 202, lifting frame; 203, slide; 204, driving cylinder; 205, top plate; 206, guide rod; 207, driving motor; 208, screw rod; 209, slide rod; 210, spring rod; 300, air pump; 301, air inlet; 302, air pipe; 303, meter; 304, multi-leaf sealing strip; 305 , fixing rod; 306, connecting sleeve; 307, ball valve body; 308, connecting pipe; 309, vent; 310, air shell; 311, rotating knob; 312, torsion spring; 400, hammer rod; 401, air pipe; 402, connecting pipe; 403, piston; 404, tension spring; 405, fixing frame; 406, rotating rod; 407, wind turbine blade; 408, transmission plate; 409, guide groove; 410, transmission rod; 411, slide seat; 412, reset spring; 413, fixing plate; 414, reset groove. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] Example 1: Please refer to Figure 1 , Figure 2 as well as Figure 3The present invention provides a technical solution: a mattress material air permeability detection device, comprising a box seat 100 for placing a mattress material 103 and a built-in hollow pressure roller 200, the top of the box seat 100 is fixedly connected to two fixed slides 101, the outer surfaces of the two fixed slides 101 are slidably connected to limit frames 102 for fixing the mattress material 103, wherein the top of the limit frame 102 is provided with a fixing bolt that can fix the limit frame 102 to the surface of the fixed slide 101, the bottom of the box seat 100 is evenly fixedly connected to a plurality of feet 105, and the two sides of the box seat 100 and located thereon are A bracket 104 is fixedly connected at the top, a slide 203 is slidably connected to the top of the bracket 104, a lifting frame 202 is arranged below the slide 203, a support plate 201 for rotationally connecting the pressure roller 200 is arranged at the bottom of the lifting frame 202, and an adjusting component for adjusting the position of the pressure roller 200 is arranged at the top of the bracket 104. By setting the adjusting component, the height and longitudinal position of the pressure roller 200 can be effectively controlled. By adjusting its height, it is convenient to provide a certain pressure for the pressure roller 200 to be applied to the mattress material 103, so as to cooperate with the air pump 300 to perform the air permeability test.

[0041] For further information, see Figure 2 , Figure 3 as well as Figure 4 The adjusting assembly includes a screw rod 208 rotatably connected to the top of the bracket 104, and the slide 203 is threadedly connected to the screw rod 208. The top of the bracket 104 is fixedly connected to a slide rod 209 for slidingly connecting the slide 203. One side of the bracket 104 is fixedly connected to a driving motor 207 for driving the screw rod 208 to rotate. The bottom of the slide 203 is fixedly connected to a driving cylinder 204. The output end of the driving cylinder 204 extends to the top of the slide 203 and is fixedly connected to a top plate 205. The two ends of the bottom of the top plate 205 There are multiple guide rods 206 fixedly connected to the slide 203 in a sliding manner, and the bottoms of the multiple guide rods 206 are commonly connected to the top of the lifting frame 202. By setting the cooperation between the driving cylinder 204 and the slide 203, the lifting frame 202 can be driven to rise and fall to change the height of the pressure roller 200. At the same time, under the action of the guide rods 206, the stability of the connection between the lifting frame 202 and the slide 203 can be effectively improved. By setting the cooperation between the screw rod 208 and the slide 203, the lateral position of the pressure roller 200 can be effectively changed.

[0042] Among them, see Figure 4 , Figure 5 as well as Figure 6The outer surface of the pressure roller 200 is evenly provided with a plurality of air suction ports 301 connected to the interior thereof, both ends of the lifting frame 202 are fixedly connected with an air pump 300, the output end of the air pump 300 is connected with an air pipe 302 connected to the interior of the pressure roller 200, and the interior of the pressure roller 200 is provided with a multi-leaf sealing strip 304 adapted to the plurality of air suction ports 301. By providing the air pump 300, air can be continuously drawn from the interior of the pressure roller 200 so that the air suction ports 301 generate suction force, and the air permeability of the mattress material 103 is tested. By providing the multi-leaf sealing strip 304, the plurality of air suction ports 301 except those directly below the pressure roller 200 can be blocked, so that only the plurality of air suction ports 301 close to the mattress material 103 generate suction force, thereby achieving accurate air permeability testing.

[0043] Specifically, when in use, the mattress material 103 to be tested is first placed above the box seat 100 and between the two fixed slides 101, and then the position of the limit frame 102 on the surface of the fixed slide 101 is adjusted to fix the mattress material 103, and then the driving cylinder 204 is operated to shrink its output end, thereby driving the top plate 205 to move downward, so that the guide rod 206 moves downward and drives the lifting frame 202 to move downward. At this time, the lifting frame 202 moves downward to drive the pressure roller 200 to move downward to press it to the mattress material 103. At the same time, the air pump 300 is turned on to suck air into the air pipe 302. At this time, the pressure roller 200 is in a stationary state and the multi-leaf sealing strip 304 will block the multiple suction ports 301 except for the one directly below the pressure roller 200, so that the multiple suction ports 301 directly below the pressure roller 200 generate suction, thereby measuring the air permeability of the mattress material 103. At the same time, the height of the pressure roller 200 can be continuously adjusted to test the air permeability of the mattress material 103 under different pressures, and its air permeability can be tested by the meter 303.

[0044] In summary, by driving the screw rod 208 to rotate through the driving motor 207, the slide 203 can be moved laterally along the slide bar 209, thereby adjusting the lateral position of the pressure roller 200, which makes the selection of the detection area more flexible. The telescopic movement of the driving cylinder 204 can drive the lifting frame 202 and the pressure roller 200 to move up and down, and realize the precise adjustment of the height. This design is not only convenient for applying the pressure roller 200 to the mattress material 103, but also can adjust the pressure applied as needed to simulate different usage scenarios and conditions. The setting of the guide rod 206 ensures the stability of the lifting frame 202 during the lifting process, and prevents the accuracy of the detection result from being affected by shaking or offset. The suction port 301 evenly opened on the surface of the pressure roller 200 is connected to the inside, and through the suction action of the air pump 300, a uniform suction force can be generated to achieve accurate measurement of the air permeability of the mattress material 103. The multi-leaf sealing strip 304 effectively blocks the air inlet 301 except for the area directly below the pressure roller 200, ensuring that only the air inlet 301 in contact with the mattress material 103 generates suction, thereby improving the accuracy and pertinence of the detection. The use of the meter 303 can monitor and record the air permeability data in real time, providing an objective basis for evaluating the air permeability of the mattress material.

[0045] Example 2: Please refer to Figure 6 , Figure 7 as well as Fig. 9 The present invention also provides a technical solution, which is different from the technical solution of the first embodiment: a mattress material air permeability detection device, an air blocking component is arranged inside the pressure roller 200, a meter 303 is fixedly connected to the outer surface of the air pipe 302, one end of the air pipe 302 is fixedly connected to an air shell 310 fixedly connected to the support plate 201, and a plurality of air holes 309 for connecting the pressure roller 200 and the air shell 310 are opened inside the support plate 201, and both ends of the multi-leaf sealing strip 304 are fixedly connected to fixed rods 305 fixedly connected to the support plate 201. By setting the air blocking component, the air extraction path of the air pump 300 can be effectively changed, thereby adapting to the environment in which the pressure roller 200 is used.

[0046] Furthermore, the air blocking component includes a connecting sleeve 306 fixedly connected to the outer surface of the fixed rod 305, a plurality of through holes are evenly opened inside the connecting sleeve 306, and a ball valve body 307 is arranged in each of the plurality of through holes, one end of each of the plurality of ball valve bodies 307 is fixedly connected to a rotating knob 311 rotatably connected to the connecting sleeve 306, the interior of the pressure roller 200 is fixedly connected to a connecting pipe 308 slidably connected to the connecting sleeve 306, the outer surface of the rotating knob 311 is sleeved with a torsion spring 312 for its own reset, wherein the plurality of ball valve bodies 307 are initially in an open state under the action of the torsion spring 312, so that when the pressure roller 200 is stationary, the airflow will be stably drawn through the pressure roller 200.

[0047] Specifically, when it is necessary to perform air permeability tests and durability tests on different positions of the mattress material 103, the drive motor 207 can be operated to drive the screw rod 208 to rotate so that the slide 203 is in position, thereby driving the pressure roller 200 to roll on the top surface of the mattress material 103 to test its durability. At this time, the air pump 300 continues to operate, and when the pressure roller 200 rotates, it will drive the connecting pipe 308 to rotate. At this time, the connecting sleeve 306 is fixed on the fixed rod 305 and is in a stationary state. The rotation of the connecting pipe 308 will continuously drive the rotating knob 311 to rotate, thereby driving the ball valve body 307 to flip, thereby blocking the channel between the pressure roller 200 and the air pipe 302, so that no suction is generated at the suction port 301, so as not to affect the normal rolling of the pressure roller 200.

[0048] For further information, see Figure 8 , Fig.10 as well as Fig.11 Applying vibration force can simulate the vibration generated by human body activities on the bed, such as turning over, sitting up, etc., so as to more accurately evaluate the performance and durability of the mattress in actual use. A hammer rod 400 for hammering the pressure roller 200 is provided on one side of the air pump 300, and transmission components cooperating with the air blocking component are provided on both sides of the support plate 201. The transmission component includes a return air pipe 402 connected to the air shell 310, one end of the return air pipe 402 is connected to the air connecting pipe 401, one end of the hammer rod 400 is fixedly connected to the transmission rod 410 slidably connected to the air connecting pipe 401, and a transmission disk 408 is provided inside the air connecting pipe 401. Both sides of the transmission disk 408 Guide grooves 409 are provided on both sides of the transmission disk 408, and reset grooves 414 connected to the guide grooves 409 are provided on both sides of the transmission disk 408. One end of the transmission rod 410 extends to the interior of the hammer rod 400 and is fixedly connected to a slide seat 411 slidably connected to the guide groove 409. The outer surface of the transmission rod 410 is sleeved with a reset spring 412 for its own reset. By setting the cooperation between the guide groove 409 and the reset groove 414, the transmission rod 410 can be effectively pulled to move and the reset spring 412 can be compressed to store force, wherein the reset groove 414 can quickly release the slide seat 411 so that it can be quickly reset under the action of the reset spring 412 to hammer the hammer rod 400 on the surface of the pressure roller 200.

[0049] Among them, see Fig.11 , Fig.12 as well as Fig.13A fixing frame 405 for supporting the air tube 401 is fixedly connected to one side of the support plate 201, a fixing plate 413 is fixedly connected to the inside of the air tube 401, a rotating rod 406 fixedly connected to the transmission plate 408 is rotatably connected to the inside of the fixing plate 413, the lifting frame 202 is fixedly connected to the support plate 201 through a spring rod 210, a piston 403 adapted to the air tube 401 is slidably connected to the inside, one end of the piston 403 is fixedly connected to a tension spring 404 fixedly connected to the inside of the air tube 401, and a plurality of wind turbine blades 407 are fixedly connected to the outer surface of the rotating rod 406.

[0050] It is worth mentioning that the air pump 300 is in a continuously open state, and it will continuously inhale air through the air shell 310. When the pressure roller 200 is in a stationary state, the air blocking component will automatically close because the connection tube 308 stops rotating and does not apply a rotational force to the rotating button 311. At this time, the rotating button 311, in cooperation with the torsion spring 312, will overcome the friction between the rotating button 311 and the connection tube 308 and reset to make the ball valve body 307 in a connected state. When the pressure roller 200 is fixed, the air blocking component will be opened, so that the connection tube 308 will continuously transmit the rotation of the rotating button 311 to suppress the resistance of the torsion spring 312. When the resistance of the torsion spring 312 is equal to the friction force of the connection tube 308, the ball valve body 307 will be in a stationary state and close the channel of the connecting sleeve 306.

[0051] Specifically, when the channel between the air pipe 302 and the pressure roller 200 is blocked, the suction force of the air pump 300 will be transmitted to the return air pipe 402. At this time, negative pressure is gradually generated in the return air pipe 402 to adsorb the piston 403 and compress the tension spring 404 to move, thereby connecting the return air pipe 402 with the connecting air pipe 401, thereby continuously sucking air from the connecting air pipe 401. At this time, the rapid flow of gas in the connecting air pipe 401 will push the wind turbine blades 407 to drive the rotating rod 406 to rotate, so that the rotating rod 406 drives the transmission disk 408 to rotate and then drives the slide 411 to slide in the guide groove 409, thereby pulling the hammer rod 400 away from the pressure roller 200. As the transmission disk 408 continues to rotate, it will drive the slide 411 to enter the reset groove 414. At this time, the hammer rod 400 is quickly reset under the action of the transmission rod 410, thereby hammering on the surface of the pressure roller 200 to cause it to vibrate.

[0052] In summary, the air blocking component realizes automatic switching between the stationary and rolling states of the pressure roller 200 through the design of the ball valve body 307 and the rotating knob 311. When the pressure roller 200 is stationary, the ball valve body 307 remains in an open state under the action of the torsion spring 312, allowing air flow to pass; and when the pressure roller 200 rolls, the rotation of the connecting pipe 308 drives the rotating knob 311 to rotate, thereby driving the ball valve body 307 to flip, blocking the channel, and preventing the suction force from affecting the normal rolling of the pressure roller 200. This design improves the flexibility and accuracy of the detection. The transmission component uses the gas flow in the air pipe 401 to drive the wind turbine blade 407 to rotate, thereby driving the transmission disc 408 and the slide seat 411 to move. This design not only realizes the effective use of energy, but also avoids the noise and wear that may be caused by traditional mechanical transmission methods. When the pressure roller 200 rolls and the channel is blocked, the suction of the air pump 300 is transmitted to the return air pipe 402, generating a negative pressure to adsorb the piston 403 to move, thereby driving the hammer rod 400 away from the pressure roller 200. As the transmission disc 408 continues to rotate, the slide 411 enters the reset groove 414, and the hammer rod 400 is quickly reset under the action of the transmission rod 410, hammering the surface of the pressure roller 200 to generate vibration. This design not only improves the efficiency and accuracy of durability testing, but also increases the interest and interactivity of the test. Through the mutual cooperation of the air blocking component and the transmission component, the device realizes automatic switching between permeability testing and durability testing. In the permeability testing stage, the pressure roller 200 is stationary and the channel is open, allowing air flow to pass and measure the permeability; while in the durability testing stage, the pressure roller 200 rolls and the channel is blocked, and the energy generated by the gas flow is used to drive the hammer rod 400 to hammer the pressure roller 200, simulating the vibration and wear in actual use. In addition, the ingenious design of the fixed frame 405, the fixed plate 413, the rotating rod 406 and other components ensures the stability and reliability of the transmission component. The setting of the spring rod 210 and the tension spring 404 provides the necessary elasticity and reset force, so that the entire device can maintain stable operation during the testing process.

[0053] Example 3: Please refer to Figures 1 to 13 The present invention also provides a technical solution, which is different from the technical solution of the first embodiment: a method for detecting air permeability of a mattress material, comprising the following steps:

[0054] S1. When in use, the mattress material 103 to be tested is first placed on the box seat 100 and between the two fixed slides 101, and then the position of the limit frame 102 on the surface of the fixed slide 101 is adjusted to fix the mattress material 103;

[0055] S2, then the driving cylinder 204 is operated to shrink its output end, thereby driving the top plate 205 to move downward, so that the guide rod 206 moves downward and drives the lifting frame 202 to move downward. At this time, the lifting frame 202 moves downward to drive the pressure roller 200 to move downward so that it is pressed on the surface of the mattress material 103. At the same time, the air pump 300 is turned on to suck air into the air pipe 302. At this time, the pressure roller 200 is in a stationary state and the multi-leaf sealing strip 304 blocks the multiple suction ports 301 except for those directly below the pressure roller 200, so that the multiple suction ports 301 directly below the pressure roller 200 generate suction force, thereby measuring the air permeability of the mattress material 103. At the same time, the height of the pressure roller 200 can be continuously adjusted to test the air permeability of the mattress material 103 under different pressures, and the air permeability can be tested by the meter 303;

[0056] S3. When it is necessary to test the air permeability and durability of different positions of the mattress material 103, the driving motor 207 can be operated to drive the screw rod 208 to rotate so that the slide 203 is in position, thereby driving the pressure roller 200 to roll on the top surface of the mattress material 103 to test its durability. At this time, the air pump 300 continues to operate, and when the pressure roller 200 rotates, it will drive the connecting pipe 308 to rotate. At this time, the connecting sleeve 306 is fixed on the fixing rod 305 and is in a stationary state. The rotation of the connecting pipe 308 will continuously drive the rotating knob 311 to rotate, thereby driving the ball valve body 307 to flip, thereby blocking the channel between the pressure roller 200 and the air pipe 302, so that no suction is generated at the air inlet 301, so as not to affect the normal rolling of the pressure roller 200;

[0057] S4. At the same time, when the channel between the air pipe 302 and the pressure roller 200 is blocked, the suction force of the air pump 300 will be transmitted to the return air pipe 402. At this time, negative pressure is gradually generated in the return air pipe 402 to absorb the piston 403 and compress the tension spring 404 to move, thereby connecting the return air pipe 402 with the connecting air pipe 401, so that air is continuously sucked from the connecting air pipe 401. At this time, the rapid flow of gas in the connecting air pipe 401 will push the wind turbine blades 407 to drive the rotating rod 406 to rotate, so that the rotating rod 406 drives the transmission disk 408 to rotate and then drives the slide 411 to slide in the guide groove 409, thereby pulling the hammer rod 400 away from the pressure roller 200. As the transmission disk 408 continues to rotate, it will drive the slide 411 into the reset groove 414. At this time, the hammer rod 400 is quickly reset under the action of the transmission rod 410, thereby hammering on the surface of the pressure roller 200 to cause it to vibrate.

[0058] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0059] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mattress material air permeability detection device, comprising a box seat (100) for placing a mattress material (103) and a built-in hollow pressure roller (200), characterized in that: Brackets (104) are fixedly connected on both sides of the box seat (100) and located above the box seat, a slide (203) is slidably connected to the top of the bracket (104), a lifting frame (202) is arranged below the slide (203), a support plate (201) for rotationally connecting the pressure roller (200) is arranged at the bottom of the lifting frame (202), and an adjustment component for adjusting the position of the pressure roller (200) is arranged at the top of the bracket (104); The outer surface of the pressure roller (200) is evenly provided with a plurality of air inlets (301) connected to the interior thereof; both ends of the lifting frame (202) are fixedly connected to an air pump (300); the output end of the air pump (300) is connected to an air pipe (302) connected to the interior of the pressure roller (200); a multi-leaf sealing strip (304) adapted to the plurality of air inlets (301) is arranged inside the pressure roller (200); and an air blocking component is arranged inside the pressure roller (200); A hammer rod (400) for hammering the pressure roller (200) is disposed on one side of the air pump (300), and transmission components cooperating with the air blocking components are disposed on both sides of the support plate (201).

2. A mattress material air permeability detection device according to claim 1, characterized in that: A meter (303) is fixedly connected to the outer surface of the air pipe (302), one end of the air pipe (302) is fixedly connected to an air shell (310) fixedly connected to the support plate (201), and a plurality of air holes (309) for connecting the pressure roller (200) and the air shell (310) are provided inside the support plate (201), and both ends of the multi-leaf sealing strip (304) are fixedly connected to fixing rods (305) fixedly connected to the support plate (201).

3. A mattress material air permeability detection device according to claim 2, characterized in that: The air blocking component includes a connecting sleeve (306) fixedly connected to the outer surface of the fixing rod (305), a plurality of through holes are evenly opened inside the connecting sleeve (306), and a ball valve body (307) is arranged in each of the plurality of through holes, one end of each of the plurality of ball valve bodies (307) is fixedly connected to a rotating knob (311) rotatably connected to the connecting sleeve (306), a connecting tube (308) slidably connected to the connecting sleeve (306) is fixedly connected inside the pressure roller (200), and a torsion spring (312) is sleeved on the outer surface of the rotating knob (311) for its own reset.

4. A mattress material air permeability detection device according to claim 3, characterized in that: The transmission assembly comprises an air return pipe (402) connected to the air shell (310), one end of the air return pipe (402) is connected to the air connecting pipe (401), one end of the hammer rod (400) is fixedly connected to a transmission rod (410) slidably connected to the air connecting pipe (401), a transmission disc (408) is arranged inside the air connecting pipe (401), both sides of the transmission disc (408) are provided with guide grooves (409), both sides of the transmission disc (408) are provided with reset grooves (414) connected to the guide grooves (409), one end of the transmission rod (410) extends to the inside of the hammer rod (400) and is fixedly connected to a sliding seat (411) slidably connected to the guide groove (409), and the outer surface of the transmission rod (410) is sleeved with a reset spring (412) for self-reset.

5. A mattress material air permeability detection device according to claim 4, characterized in that: A fixing frame (405) for supporting the air connecting pipe (401) is fixedly connected to one side of the support plate (201); a fixing plate (413) is fixedly connected inside the air connecting pipe (401); a rotating rod (406) fixedly connected to the transmission plate (408) is rotatably connected inside the fixing plate (413); and the lifting frame (202) is fixedly connected to the support plate (201) via a spring rod (210).

6. A mattress material air permeability detection device according to claim 5, characterized in that: The interior of the air connecting pipe (401) is slidably connected to a piston (403) adapted thereto, one end of the piston (403) is fixedly connected to a tension spring (404) fixedly connected to the interior of the air connecting pipe (401), and the outer surface of the rotating rod (406) is fixedly connected to a plurality of wind turbine blades (407).

7. The mattress material air permeability detection device according to claim 1, characterized in that: The adjustment assembly comprises a screw rod (208) rotatably connected to the top of the bracket (104), and the slide (203) is threadedly connected to the screw rod (208); the top of the bracket (104) is fixedly connected to a slide rod (209) for sliding connection of the slide (203); and one side of the bracket (104) is fixedly connected to a drive motor (207) for driving the screw rod (208) to rotate.

8. A mattress material air permeability detection device according to claim 7, characterized in that: The bottom of the slide (203) is fixedly connected to a driving cylinder (204), the output end of the driving cylinder (204) extends to the top of the slide (203) and is fixedly connected to a top plate (205), both ends of the bottom of the top plate (205) are fixedly connected to a plurality of guide rods (206) slidably connected to the slide (203), and the bottoms of the plurality of guide rods (206) are commonly connected to the top of the lifting frame (202).

9. The mattress material air permeability detection device according to claim 1, characterized in that: The top of the box seat (100) is fixedly connected to two fixed slides (101), the outer surfaces of the two fixed slides (101) are slidably connected to limit frames (102) for fixing mattress materials (103), and the bottom of the box seat (100) is evenly fixedly connected to a plurality of feet (105).

10. A method for detecting air permeability of a mattress material, according to a device for detecting air permeability of a mattress material according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. When in use, first place the mattress material (103) to be tested on the top of the box seat (100); S2. Then, the pressure roller (200) is driven downward by operating the adjustment component so that it is pressed against the surface of the mattress material (103). At the same time, the air pump (300) is turned on so that air is sucked into the air pipe (302). At this time, the pressure roller (200) is in a stationary state and the multi-leaf sealing strip (304) blocks the multiple air suction ports (301), so that the multiple air suction ports (301) located directly below the pressure roller (200) generate suction force, thereby measuring the air permeability of the mattress material (103). At the same time, the height of the pressure roller (200) can be continuously adjusted to test the air permeability performance of the mattress material (103) under different pressures. S3. When it is necessary to perform air permeability test and durability test on different positions of the mattress material (103), the position of the pressing roller (200) can be changed by operating the adjustment component, so that suction is not generated at the suction port (301) in cooperation with the air blocking component; S4. At the same time, when the passage between the air pipe (302) and the pressure roller (200) is blocked, the suction force of the air pump (300) will be transmitted to the transmission component, and the driving hammer rod (400) will hammer on the surface of the pressure roller (200) to cause it to vibrate.

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