Sanitary napkin hydroscopicity detection device

By designing a sanitary napkin water absorption detection device including a base plate, a placement box, a bracket, a threaded rod, a water outlet assembly and a detection assembly, the problem of error after liquid overflow in the prior art is solved, and the accurate measurement and detection of liquid volume is achieved Improvement of results.

CN222529189UActive Publication Date: 2025-02-25WUHAN CHV HYGIENE PROD CO LTD
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Patent Information

Application Number
CN202420983839.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-08
Publication Date
2025-02-25
Estimated Expiration
2034-05-08

AI Technical Summary

Technical Problem

In the prior art, when the water absorption is detected by sanitary napkins, evaporation, splashing and other factors may occur during the flow process after the liquid overflows, resulting in a liquid quantity error and affecting the accuracy of the detection results.

Method used

A sanitary napkin water absorption detection device is designed, including a base plate, a placement box, a bracket, a threaded rod, a water outlet assembly and a detection assembly. The moving frame is driven down by the rotation of the threaded rod, which drives the pressure plate to apply pressure to the sanitary napkin, simulating the wearable state. After the liquid overflows, the buzzer is controlled to start and the control valve is closed through the raindrop sensor to ensure accurate measurement of the liquid volume.

Benefits of technology

It realizes accurate measurement of the liquid volume when the sanitary napkin reaches the water absorption limit, avoids errors in the flow process, and improves the accuracy of the detection results.

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Abstract

The utility model provides a sanitary towel hydroscopicity detection device, which relates to the technical field of sanitary towel hydroscopicity detection, and comprises a bottom plate, the top of the bottom plate is fixedly connected with a placing box, the top of the bottom plate is fixedly connected with a support, and the top of the support is in threaded connection with a threaded rod in a penetrating manner. According to the sanitary napkin water absorption detection device, when the detection device is used for detecting the water absorption of the sanitary napkin, after liquid overflows after the sanitary napkin reaches the water absorption limit, the overflowed liquid overflows to the surface of the pressing plate from the position of the through hole, at the moment, the liquid makes contact with the raindrop sensor, and after the raindrop sensor makes contact with the liquid, the buzzer is controlled to be started, and the control valve is controlled to be closed; at the moment, the sanitary napkin is in a state that the liquid is fully absorbed and just overflows, after a worker obtains the amount of the liquid flowing out of the liquid storage box, the limit water absorption amount of the sanitary napkin can be accurately obtained, and the detection result of the water absorption of the sanitary napkin is accurate.
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Description

Technical Field

[0001] The utility model relates to the technical field of sanitary napkin water absorption detection, in particular to a sanitary napkin water absorption detection device. Background Art

[0002] Sanitary napkins are a type of sanitary product used by women during menstruation. The water absorption test of sanitary napkins is one of the important indicators for evaluating their performance.

[0003] In the prior art, there is a device for detecting water absorption of sanitary napkins, such as Chinese patent CN 219320039 U, which includes a middle partition plate, two symmetrically distributed arc plates are arranged on the side surface of the top of the support plate, an adjustment component is arranged on one side of the other arc plate and is slidably connected to the top of the support plate through the adjustment component, the tops of the two arc plates are provided with clamping components for limiting and fixing the sanitary napkins, and the output end of the motor is transmission-connected with a vibration component for vibrating the sanitary napkins; the utility model firmly fixes the sanitary napkins through the clamping component to avoid the problem of sanitary napkins being offset during the water absorption test, and the two sanitary napkins are placed on the arc sides of the two arc plates to make the sanitary napkins bend to simulate the state of the sanitary napkins when worn on the body, and the sanitary napkins fixed on the arc plate are driven by the vibration component to vibrate a certain amount, which is used to simulate the water absorption test when a person wears the sanitary napkin while walking or exercising.

[0004] Currently, when testing the water absorbency of sanitary napkins, the test result is determined by subtracting the amount of liquid discharged from the amount of liquid overflowed after the sanitary napkin is filled with liquid and overflows. However, in the process of collecting and measuring the overflowing liquid, the overflowing liquid passes through multiple circulation positions, and the liquid may be affected by factors such as evaporation and splashing during the circulation process, resulting in a certain error in the amount of collected liquid, which in turn affects the accuracy of the test result. Utility Model Content

[0005] The purpose of the utility model is to solve the problem that in the prior art, when testing the water absorbency of sanitary napkins, the test result is judged by subtracting the liquid output and the overflow amount after the sanitary napkin is full of liquid and overflows. However, in the process of collecting and measuring the overflowing liquid, the overflowing liquid passes through multiple circulation positions, and the liquid may be affected by factors such as evaporation and splashing during the circulation process, resulting in a certain error in the collected liquid amount, which further affects the accuracy of the test result. A sanitary napkin water absorbency testing device is proposed.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a sanitary napkin absorbency detection device, comprising: a bottom plate, a placement box is fixedly connected to the top of the bottom plate, a bracket is fixedly connected to the top of the bottom plate, a threaded rod is threaded through the top of the bracket; a water outlet component, the water outlet component is rotatably connected to the lower end surface of the threaded rod, the water outlet component includes a movable frame, a liquid storage box is fixedly connected to the top of the movable frame, and a drain pipe is fixedly connected to the bottom of the liquid storage box; a detection component, the detection component is fixedly connected to the bottom of the movable frame, the detection component includes a pressure plate, a through hole is opened on the top of the pressure plate, a notch is opened on the top of the pressure plate near the through hole, and a raindrop sensor is fixedly connected to the bottom of the notch.

[0007] Preferably, a hand-tightening head is fixedly connected to the upper end surface of the threaded rod, a limiting rod is symmetrically penetrated through the top of the bracket and is slidably connected, and the limiting rod is fixedly connected to the movable bracket.

[0008] Preferably, the drain pipe matches the position of the through hole, a control valve is provided inside the drain pipe, and the raindrop sensor is electrically connected to the control valve.

[0009] Preferably, an observation groove is provided on the outer surface of the liquid storage box, and a glass plate is fixedly connected to the inner surface of the observation groove.

[0010] Preferably, a scale plate is fixedly connected to the outer surface of the liquid storage box, and the scale plate matches the position of the glass plate.

[0011] Preferably, a buzzer is fixedly connected to the top of the movable frame, and the buzzer is electrically connected to the raindrop sensor.

[0012] Preferably, the thickness of the raindrop sensor is smaller than the depth of the notch, a rubber ring is provided on the outer surface of the pressing plate, and the outer surface of the pressing plate is in contact with the inner surface of the placement box.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] 1. In the utility model, when the detection device is used to detect the water absorption of the sanitary napkin, after the sanitary napkin reaches the water absorption limit and overflows the liquid, the overflowed liquid will overflow from the through hole position to the surface of the pressure plate, and the liquid will contact the raindrop sensor. After contacting the liquid, the raindrop sensor controls the buzzer to start and the control valve to close. At this time, the sanitary napkin is in a state of being full of liquid and just overflowing. After the staff obtains the amount of liquid flowing out of the liquid storage box, the maximum water absorption of the sanitary napkin can be accurately obtained, and the result of the sanitary napkin water absorption test is more accurate.

[0015] 2. In the utility model, after the sanitary napkin completes the water absorption test, the staff can directly calculate the water absorption of the sanitary napkin by using the glass plate and the scale plate to record the liquid level values ​​before and after the test, which is convenient and quick for determining the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram of a sanitary napkin water absorption detection device is provided for the utility model;

[0017] Figure 2 The utility model provides a rear view of a sanitary napkin absorbency detection device;

[0018] Figure 3 The utility model provides a schematic diagram of the structure of a water outlet component of a sanitary napkin water absorption detection device;

[0019] Figure 4 The utility model provides a structural schematic diagram of a detection component of a sanitary napkin absorbency detection device.

[0020] Legend: 1. Base plate; 2. Placement box; 3. Bracket; 4. Threaded rod; 5. Twist head; 6. Limit rod; 7. Water outlet assembly; 701. Mobile rack; 702. Buzzer; 703. Liquid storage box; 704. Glass plate; 705. Scale plate; 706. Drain pipe; 707. Control valve; 8. Detection assembly; 801. Pressure plate; 802. Rubber ring; 803. Through hole; 804. Notch; 805. Raindrop sensor. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0023] Embodiment 1, as Figure 1-Figure 4As shown, the utility model provides a sanitary napkin absorbency detection device, including: a bottom plate 1, a placement box 2 is fixedly connected to the top of the bottom plate 1, a bracket 3 is fixedly connected to the top of the bottom plate 1, and a threaded rod 4 is threadedly connected to the top of the bracket 3; a water outlet component 7, the water outlet component 7 is rotatably connected to the lower end surface of the threaded rod 4, the water outlet component 7 includes a mobile frame 701, a liquid storage box 703 is fixedly connected to the top of the mobile frame 701, and a drain pipe 706 is fixedly connected to the bottom of the liquid storage box 703; a detection component 8, the detection component 8 is fixedly connected to the bottom of the mobile frame 701, the detection component 8 includes a pressing plate 801, a through hole 803 is opened on the top of the pressing plate 801, and a notch is opened near the through hole 803 on the top of the pressing plate 801 804, a raindrop sensor 805 is fixedly connected to the bottom of the slot 804, a hand-tightening head 5 is fixedly connected to the upper end face of the threaded rod 4, a limit rod 6 is symmetrically penetrated and slidably connected to the top of the bracket 3, the limit rod 6 is fixedly connected to the movable frame 701, the drain pipe 706 matches the position of the through hole 803, a control valve 707 is matched inside the drain pipe 706, the raindrop sensor 805 is electrically connected to the control valve 707, a buzzer 702 is fixedly connected to the top of the movable frame 701, the buzzer 702 is electrically connected to the raindrop sensor 805, the thickness of the raindrop sensor 805 is less than the depth of the slot 804, a rubber ring 802 is arranged on the outer surface of the pressing plate 801, and the outer surface of the pressing plate 801 fits the inner surface of the placement box 2.

[0024] The effect achieved by the entire embodiment 1 is that when using the detection device to detect the water absorbency of the sanitary napkin, the sanitary napkin is laid flat and placed in the placement box 2, and then the liquid storage box 703 is filled with water, and the hand screw head 5 is turned to drive the threaded rod 4 to rotate. The rotation of the threaded rod 4 can push the movable frame 701 to move downward, and the setting of the limit rod 6 can play a limiting role in the movement of the movable frame 701. When the movable frame 701 moves downward, it will drive the pressing plate 801 to move downward and enter the placement box 2. When the pressing plate 801 moves downward, it will press the sanitary napkin. The sanitary napkin is subjected to a certain pressure to simulate the body pressure in normal use. Water can be discharged from the drain pipe 706 and dripped on the surface of the sanitary napkin. The drain pipe 706 can be controlled by the control valve 707 to simulate the normal use of the sanitary napkin. Liquid with a density close to that of blood can be dripped on the surface of the sanitary napkin to test its water absorption. The rubber ring 802 is set so that after the pressure plate 801 is placed inside the box 2, the space from the pressure plate 801 to the bottom of the box 2 is sealed. environment, so after the sanitary napkin reaches the water absorption limit and overflows the liquid, the overflowed liquid will overflow from the through hole 803 to the surface of the pressure plate 801, and at this time the liquid will contact the raindrop sensor 805. After the raindrop sensor 805 contacts the liquid, a conductive path is formed between the liquid and the raindrop sensor 805, resulting in a decrease in resistance value, and the raindrop sensor 805 converts the change in resistance value into an electrical signal to control the start of the buzzer 702 and the closure of the control valve 707. After the buzzer 702 is started, a signal is sent to remind the staff that the test is completed, and the control valve 707 is closed to stop further filling of the liquid. At this time, the sanitary napkin is in a state of being full of liquid and just overflowing. After the staff obtains the amount of liquid flowing out of the liquid storage box 703, the maximum water absorption of the sanitary napkin can be accurately obtained. During the detection, the device can stop discharging liquid when the sanitary napkin reaches the water absorption limit, and the liquid will not overflow and flow, avoiding errors in collecting the overflowed liquid. The water absorption of the sanitary napkin can be judged by the amount of liquid discharged, and the structure for the water absorption detection of the sanitary napkin is more accurate.

[0025] Embodiment 2, as Figure 1-Figure 4 As shown, an observation groove is provided on the outer surface of the liquid storage box 703, a glass plate 704 is fixedly connected to the inner surface of the observation groove, and a scale plate 705 is fixedly connected to the outer surface of the liquid storage box 703, and the scale plate 705 matches the position of the glass plate 704.

[0026] The effect achieved by the entire embodiment 2 is that after the sanitary napkin completes the water absorption test, through the coordinated use of the glass plate 704 and the scale plate 705, the staff records the liquid level values ​​before and after the test, and can directly calculate the water absorption of the sanitary napkin, which is relatively convenient and quick for determining the test results.

[0027] Working principle: When using the detection device to detect the water absorption of sanitary napkins, the sanitary napkin is laid flat in the placement box 2, and then the liquid storage box 703 is filled with water. The hand screw head 5 is turned to drive the threaded rod 4 to rotate. The rotation of the threaded rod 4 can push the movable frame 701 to move downward. The setting of the limit rod 6 can limit the movement of the movable frame 701. When the movable frame 701 moves downward, it will drive the pressing plate 801 to move downward and enter the placement box 2. When the pressing plate 801 moves downward, it will exert a certain pressure on the sanitary napkin to simulate the body pressure that the sanitary napkin is subjected to during normal use. Water can be discharged from the position of the drain pipe 706 and dripped on the surface of the sanitary napkin. The connection control of the drain pipe 706 by the control valve 707 can make the drain pipe 706 simulate the normal use state of the sanitary napkin, and drop a liquid with a density close to that of blood on the surface of the sanitary napkin to detect the water absorption. Through the setting of the rubber ring 802, after the pressing plate 801 is inside the placement box 2, the space from the pressing plate 801 to the bottom of the placement box 2 is a sealed environment. Therefore, after the sanitary napkin reaches the water absorption limit and overflows the liquid, the overflowed liquid will overflow from the through hole 803 to the surface of the pressure plate 801. At this time, the liquid will contact the raindrop sensor 805. After the raindrop sensor 805 contacts the liquid, a conductive path is formed between the liquid and the raindrop sensor 805, resulting in a decrease in resistance value. The raindrop sensor 805 converts the change in resistance value into an electrical signal to control the start of the buzzer 702 and the closing of the control valve 707. After the buzzer 702 is started, a signal is sent to remind the staff that the test is completed. After the control valve 707 is closed, the further filling of the liquid is stopped. At this time, the sanitary napkin is in a state of being full of liquid and just overflowing. After the staff obtains the amount of liquid flowing out of the liquid storage box 703, the maximum water absorption of the sanitary napkin can be accurately obtained. After the sanitary napkin completes the water absorption test, through the coordinated use of the glass plate 704 and the scale plate 705, the staff records the liquid level values ​​before and after the test, and can directly calculate the water absorption of the sanitary napkin, which is convenient and quick for determining the test results.

[0028] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A sanitary napkin water absorption detection device, characterized in that: include: A bottom plate (1), a placement box (2) is fixedly connected to the top of the bottom plate (1), a bracket (3) is fixedly connected to the top of the bottom plate (1), and a threaded rod (4) is threadedly connected to the top of the bracket (3); A water outlet assembly (7), the water outlet assembly (7) being rotatably connected to the lower end surface of the threaded rod (4), the water outlet assembly (7) comprising a movable frame (701), a liquid storage box (703) being fixedly connected to the top of the movable frame (701), and a drainage pipe (706) being fixedly connected to the bottom of the liquid storage box (703); A detection component (8), the detection component (8) being fixedly connected to the bottom of the mobile frame (701), the detection component (8) comprising a pressing plate (801), a through hole (803) being provided at the top of the pressing plate (801), a notch (804) being provided at the top of the pressing plate (801) near the through hole (803), and a raindrop sensor (805) being fixedly connected to the bottom of the notch (804).

2. The sanitary napkin water absorption detection device according to claim 1, characterized in that: The upper end surface of the threaded rod (4) is fixedly connected with a hand-tightening head (5), and the top of the bracket (3) is symmetrically penetrated by a limiting rod (6) for sliding connection, and the limiting rod (6) is fixedly connected to the movable bracket (701).

3. The sanitary napkin water absorption detection device according to claim 1, characterized in that: The drainage pipe (706) is matched with the through hole (803) in position, a control valve (707) is arranged inside the drainage pipe (706), and the raindrop sensor (805) is electrically connected to the control valve (707).

4. The sanitary napkin water absorption detection device according to claim 1, characterized in that: An observation groove is provided on the outer surface of the liquid storage box (703), and a glass plate (704) is fixedly connected to the inner surface of the observation groove.

5. The sanitary napkin water absorption detection device according to claim 4, characterized in that: A scale plate (705) is fixedly connected to the outer surface of the liquid storage box (703), and the scale plate (705) matches the position of the glass plate (704).

6. The sanitary napkin water absorption detection device according to claim 1, characterized in that: A buzzer (702) is fixedly connected to the top of the mobile frame (701), and the buzzer (702) is electrically connected to the raindrop sensor (805).

7. The sanitary napkin water absorption detection device according to claim 1, characterized in that: The thickness of the raindrop sensor (805) is smaller than the depth of the notch (804), a rubber ring (802) is provided on the outer surface of the pressing plate (801), and the outer surface of the pressing plate (801) is in contact with the inner surface of the placement box (2).

Citation Information

Patent Citations

  • Device for detecting water absorbability of sanitary napkin

    CN219320039U