A double threshold non-contact water level alarm for a humidification tank of a breathing machine
By designing a non-contact water level alarm, the problems of decreased sensor sensitivity and inconvenient installation are solved, achieving a stable connection and adaptable installation of the sensor, ensuring the accuracy and flexibility of water level detection, and guaranteeing the normal operation of the humidifier tank of the ventilator.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 山西盈康一生医院有限责任公司
- Filing Date
- 2025-08-06
- Publication Date
- 2026-05-26
AI Technical Summary
Existing humidifier tank water level alarms for ventilators experience decreased sensitivity after prolonged contact with water, are inconvenient to install and disassemble, and are difficult to adapt to different models of ventilators, affecting detection accuracy and flexibility.
The non-contact water level alarm design uses a sensor connected to a slot and a Velcro adhesive structure to achieve a secure installation and sealed isolation between the sensor and the ventilator. It is compatible with different models of ventilators and ensures the sensitivity and stability of the sensor detection.
It improves the detection accuracy and stability of the sensor, adapts to the installation requirements of different models of ventilators, ensures the real-time and accurate detection of water level, avoids interference from the external environment, provides timely alarms, and ensures the normal operation of the ventilator humidifier tank.
Smart Images

Figure CN224286054U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, and in particular to a dual-threshold non-contact water level alarm for a ventilator humidifier tank. Background Technology
[0002] The humidifier canister of a ventilator is an important component used to humidify inhaled air during ventilator-assisted ventilation. The principle of the humidifier canister is to mix water vapor with oxygen, making the oxygen provided by the ventilator more humid, thereby helping patients breathe better. However, existing humidifier canister water level alarms have at least the following drawbacks: 1. Prolonged contact with water can affect the sensitivity of the sensor, thus affecting the accuracy of the alarm; 2. Existing humidifier canister water level alarms are cumbersome to install and remove, making it difficult to install the alarm on different models of ventilators for testing. Therefore, we have introduced a new dual-threshold non-contact water level alarm for ventilator humidifiers. Utility Model Content
[0003] The main purpose of this invention is to provide a dual-threshold non-contact water level alarm for a humidifier tank, which can effectively solve the problems in the background art.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0005] A dual-threshold non-contact water level alarm for a humidifier tank of a ventilator includes a connecting component. An alarm structure is fixedly connected to the front end of the connecting component. A first sealing plastic sticker is fixedly connected to the right side of the front end of the connecting component. A second sealing plastic sticker is fixedly connected to the front end of the first sealing plastic sticker. Both the first and second sealing plastic stickers are adhered and fixedly connected to the connecting component.
[0006] The alarm structure includes a sensor, a connection layer is fixedly connected to the front end of the sensor, three No. 1 connectors are fixedly connected horizontally at equal intervals at the lower end of the connection layer, a connection wire is fixedly connected to the lower end of each of the three No. 1 connectors, a No. 2 connector is fixedly connected to the lower end of each of the three connection wires, and the alarm body is fixedly connected to the lower end of the three No. 2 connectors. The sensor and the connection assembly are interlocked.
[0007] Preferably, the connecting component includes a connecting structure, and a data cable management strip is sleeved on the front of the outer surface of the connecting structure. The data cable management strip has connecting grooves on both the left and right front ends, and a locking groove on the right front end. The data cable management strip is sleeved with the alarm structure.
[0008] By adopting the above technical solution: the data cable is connected to the connecting structure through a cable management strap, which facilitates the subsequent installation and use of the entire alarm. The sensor on the alarm structure is supported by a slot, which facilitates the monitoring and use of the alarm structure.
[0009] Preferably, the connection structure includes a connecting strap, a hook and loop fastener layer is fixedly connected to the rear end of the connecting strap, adhesive tape is fixedly connected to both ends of the connecting strap, hook and loop fastener layers are fixedly connected to the rear ends of the two adhesive tapes, and the two adhesive tapes are interlaced with the data cable management strap.
[0010] By adopting the above technical solution: after the connecting structure is sleeved with the ventilator, the connecting structure is inserted and connected to both connecting slots, so that the two adhesive tapes pass through the two hook and loop fasteners respectively, and then the hook and loop fasteners on the two adhesive tapes are adhered and connected to the hook and loop fasteners, so as to install and connect the connecting structure with different models of ventilators.
[0011] Preferably, both of the hook and loop fastener layers are adhered to the hook and loop fastener layer.
[0012] Preferably, the slot is fitted with the sensor.
[0013] Preferably, the rear end of the first sealing plastic sealant is in contact with the connecting layer and the sensor.
[0014] Compared with the prior art, the present invention has the following beneficial effects:
[0015] 1. By setting up an alarm structure with a sensor, the sensor is inserted and connected to the card slot. After the first sealing plastic sticker is attached to the sensor and the connecting layer, it is sealed with the connecting component. After the second sealing plastic sticker is attached to the first sealing plastic sticker, it is sealed with the connecting component again to ensure that the sensitivity is not affected and improve the stability.
[0016] 2. By setting up a connecting component, after the connecting structure is connected to the ventilator, the two adhesive tapes pass through the two hook and loop fasteners respectively. Then, the hook and loop fasteners on the two adhesive tapes are adhered to the hook and loop fasteners, so as to install and connect the connecting structure with different models of ventilators, adapting to different models of ventilators and improving flexibility. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of a dual-threshold non-contact water level alarm for a ventilator humidifier tank according to the present invention.
[0018] Figure 2 This is a schematic diagram of the alarm structure connection of a dual-threshold non-contact water level alarm for a ventilator humidifier according to the present invention;
[0019] Figure 3 This is a schematic diagram of the overall structure of the alarm structure of a dual-threshold non-contact water level alarm for a ventilator humidifier tank according to the present invention.
[0020] Figure 4 This is a schematic diagram of the overall structure of the connection component of a dual-threshold non-contact water level alarm for a ventilator humidifier according to the present invention.
[0021] Figure 5 This is a schematic diagram of the overall structure of the connection structure of a dual-threshold non-contact water level alarm for a ventilator humidifier tank according to the present invention.
[0022] In the diagram: 1. Connecting component; 2. Alarm structure; 3. First sealing plastic seal; 4. Second sealing plastic seal; 21. Sensor; 22. Connecting layer; 23. First connector; 24. Connecting cable; 25. Second connector; 26. Alarm body; 11. Connecting structure; 12. Data cable management strap; 13. Card slot; 14. Connecting slot; 111. Connecting strap; 112. Velcro surface layer; 113. Adhesive tape; 114. Velcro hook surface layer. Detailed Implementation
[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0024] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0026] Please see Figure 1-5 This utility model provides a technical solution:
[0027] A dual-threshold non-contact water level alarm for a humidifier tank of a ventilator includes a connecting component 1. An alarm structure 2 is fixedly connected to the front end of the connecting component 1. A first sealing plastic sticker 3 is fixedly connected to the right side of the front end of the connecting component 1. A second sealing plastic sticker 4 is fixedly connected to the front end of the first sealing plastic sticker 3. Both the first sealing plastic sticker 3 and the second sealing plastic sticker 4 are adhered and fixedly connected to the connecting component 1.
[0028] In this embodiment, the alarm structure 2 includes a sensor 21. A connecting layer 22 is fixedly connected to the front end of the sensor 21. Three first connectors 23 are fixedly connected at equal intervals laterally at the lower end of the connecting layer 22. A connecting line 24 is fixedly connected to the lower end of each of the three first connectors 23. A second connector 25 is fixedly connected to the lower end of each of the three connecting lines 24. The lower ends of the three second connectors 25 are all fixedly connected to the alarm body 26. The sensor 21 is inserted and connected to the connecting component 1. The slot 13 is sleeved with the sensor 21. The rear end of the first sealing plastic seal 3 is in contact with the connecting layer 22 and the sensor 21.
[0029] The above scheme involves connecting three connecting wires 24 to three No. 1 connectors 23, and connecting the other ends of the three connecting wires 24 to three No. 2 connectors 25, to fix the sensor 21 and the alarm body 26 together. The sensor 21 is then connected to the slot 13 on the connecting assembly 1. After the No. 1 sealing plastic sticker 3 is attached to the sensor 21 and the connecting layer 22, it is sealed between the sensor 21 and the connecting assembly 1. After the No. 2 sealing plastic sticker 4 is attached to the No. 1 sealing plastic sticker 3, it is sealed between the sensor 21 and the connecting assembly 1 again. This ensures that the sensitivity is not affected and improves the stability.
[0030] In this embodiment, the connecting component 1 includes a connecting structure 11. A data cable management strap 12 is sleeved on the front of the outer surface of the connecting structure 11. The left and right front ends of the data cable management strap 12 are provided with connecting grooves 14, and the right front end of the data cable management strap 12 is provided with a slot 13. The data cable management strap 12 is sleeved with the alarm structure 2. The connecting structure 11 includes a connecting strip 111. A hook and loop fastener layer 112 is fixedly connected to the rear end of the connecting strip 111. Adhesive tape 113 is fixedly connected to both ends of the connecting strip 111. A hook and loop fastener layer 114 is fixedly connected to the rear end of both adhesive tapes 113. Both adhesive tapes 113 are interlocked with the data cable management strap 12. Both hook and loop fastener layers 114 are adhered to the hook and loop fastener layer 112.
[0031] The above method involves connecting the connecting structure 11 to the ventilator, then further connecting the connecting structure 11 to the two connecting slots 14, so that the two adhesive tapes 113 pass through the corresponding hook and loop fasteners 114, and then attaching the hook and loop fasteners 114 on the two adhesive tapes 113 to the hook and loop fasteners 112 one by one, thereby achieving a stable installation connection between the connecting structure 11 and different models of ventilators.
[0032] It should be noted that this utility model is a dual-threshold non-contact water level alarm for a ventilator humidifier tank. By connecting three connecting wires 24 to three No. 1 connectors 23 respectively, and connecting the other ends of the three connecting wires 24 to three No. 2 connectors 25 respectively, a circuit path is established between the sensor 21 and the alarm body 26, providing a physical basis for the transmission of water level signals and ensuring that the water level information detected by the sensor 21 can be transmitted to the alarm body 26 in real time. The sensor 21 is then connected to the slot 13 on the connecting assembly 1. The precise positioning of sensor 21 allows it to correspond to the water level monitoring area of the humidification tank. Then, a first sealing plastic sealant 3 is applied to sensor 21 and connecting layer 22, and then sealed with connecting assembly 1. A second sealing plastic sealant 4 is then applied to the first sealing plastic sealant 3 and sealed again. This double-sealing structure effectively isolates the sensor 21 from external environmental interference (such as moisture and dust), ensuring the sensor 21's detection sensitivity and operational stability, and guaranteeing the accuracy of the water level detection data. The connecting structure 11 is then connected to the ventilator. Next, the connecting structure 11 is inserted and connected to both connecting slots 14, so that the two adhesive tapes 113 pass through the two hook and loop fastener layers 114 respectively. Then, the hook and loop fastener layers 114 on the two adhesive tapes 113 are adhered and connected to the hook and loop fastener layers 112, thus achieving a stable fixation between the connecting structure 11 and the ventilator. This design, through the adjustable adhesive tapes 113 and hook and loop fasteners, can adapt to different models of ventilators, ensuring that the device will not loosen or shift during the operation of the ventilator, and ensuring that the sensor 21 is always aligned with the monitoring position of the humidifier. The sensor 21 acts as a non-contact... The touch-sensitive detection core continuously monitors the water level changes in the humidifier tank. Its preset dual thresholds (such as low water level threshold and high water level threshold) correspond to the safe water level range of the humidifier tank. When the sensor 21 detects that the water level reaches or exceeds the high water level threshold (or is lower than the low water level threshold), it will transmit the corresponding electrical signal to the alarm body 26 through the connecting line 24, connector 23, and connector 25. After receiving the signal, the alarm body 26 triggers the alarm mechanism (such as audible and visual alarm) to promptly remind medical staff to adjust the water level and ensure the normal operation of the ventilator humidifier tank.
[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A dual threshold non-contact water level alarm for a humidifier tank of a breathing machine comprising a connecting assembly (1) characterized in that: The front end of the connecting component (1) is fixedly connected to an alarm structure (2), and the right side of the front end of the connecting component (1) is fixedly connected to a first sealing plastic sticker (3). The front end of the first sealing plastic sticker (3) is fixedly connected to a second sealing plastic sticker (4). The first sealing plastic sticker (3) and the second sealing plastic sticker (4) are both adhered and fixedly connected to the connecting component (1). The alarm structure (2) includes a sensor (21). A connection layer (22) is fixedly connected to the front end of the sensor (21). Three first connectors (23) are fixedly connected at equal distances in the horizontal direction at the lower end of the connection layer (22). A connecting line (24) is fixedly connected to the lower end of each of the three first connectors (23). A second connector (25) is fixedly connected to the lower end of each of the three connecting lines (24). An alarm body (26) is fixedly connected to the lower end of each of the three second connectors (25). The sensor (21) is interlocked with the connection component (1).
2. The dual-threshold non-contact water level alarm for a ventilator humidifier tank according to claim 1, characterized in that: The connection component (1) includes a connection structure (11). A data cable management strip (12) is sleeved on the front of the outer surface of the connection structure (11). A connection slot (14) is provided on the left and right front ends of the data cable management strip (12). A card slot (13) is provided on the right front end of the data cable management strip (12). The data cable management strip (12) is sleeved with the alarm structure (2).
3. The dual-threshold non-contact water level alarm for a ventilator humidifier tank according to claim 2, characterized in that: The connection structure (11) includes a connecting strip (111), a hook and loop fastener layer (112) is fixedly connected to the rear end of the connecting strip (111), and adhesive tape (113) is fixedly connected to both the left and right ends of the connecting strip (111). A hook and loop fastener layer (114) is fixedly connected to the rear end of each of the two adhesive tapes (113), and both adhesive tapes (113) are interlaced with the data cable management tape (12).
4. A dual-threshold non-contact water level alarm for a ventilator humidifier tank according to claim 3, characterized in that: Both of the hook and loop fastener layers (114) are adhered to the hook and loop fastener layer (112).
5. A dual-threshold non-contact water level alarm for a ventilator humidifier tank according to claim 2, characterized in that: The slot (13) is fitted with the sensor (21).
6. A dual-threshold non-contact water level alarm for a ventilator humidifier tank according to claim 1, characterized in that: The rear end of the first sealing plastic sealant (3) is in contact with the connecting layer (22) and the sensor (21).