Humidifying tank and breathing machine
By designing the main body and guide part of the float that can gradually reduce the cross-sectional area, the problem of float adhesion when the water in the wet tank is boiled and the float is ensured to float normally and avoid equipment damage and harm to patients.
Patent Information
- Application Number
- CN202322937958.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-10-30
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2033-10-30
AI Technical Summary
When the existing wet tank is boiled dry, the float is prone to stick to the chassis, causing it to be unable to float, which may damage the ventilator and harm the patient.
A wettable tank including a tank body and a built-in float is designed. The cross-sectional area of the float body gradually decreases along the direction of the cover body. The guide part realizes the guidance and the liquid inlet when the water level changes through the guide sleeve and the convex ribs. Reduce the contact area between the float and the bottom of the tank to avoid adhesion.
It effectively reduces the contact area between the float and the bottom of the tank, prevents adhesion, ensures that the float can float normally, and avoids the risk of excessive heating and potential equipment damage caused by too low water level.
Smart Images
Figure CN222341762U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of humidification tanks, in particular to a humidification tank and a ventilator. Background Art
[0002] The humidifier tank of the ventilator is filled with water through a water bag or a water bottle, and a float is set inside the humidifier tank to realize the function of automatic water addition. However, once the water in the water bag or water bottle is used up, the float in the humidifier tank will gradually sink to the bottom. When the water in the humidifier tank is dried up, there is a delay in the prompt or alarm of the ventilator. During the period from the delayed prompt or alarm to the actual replacement of the water bag or water bottle to add water to the humidifier tank, the ventilator will continue to heat the humidifier tank. The temperature of the humidifier tank is prone to be too high, and the float is prone to adhesion to the chassis of the humidifier tank. Once adhered, the float cannot float up when water is added again, resulting in continuous water addition exceeding the warning water level, which may damage the ventilator and even cause harm to the patient. Utility Model Content
[0003] The technical problem to be solved by the utility model is: to provide a humidifier and a breathing machine in view of the problem that the float is easy to adhere to the bottom plate of the humidifier when the water in the existing humidifier is dried up.
[0004] In order to solve the above technical problems, on the one hand, the embodiment of the utility model provides a humidification tank, including a tank body and a float arranged in the tank body;
[0005] The float comprises a float body and a cover body connected to the float body, a guide portion is arranged in the tank body, a liquid inlet is arranged on the guide portion, an end of the cover body away from the float body is connected to the guide portion, the guide portion can guide the float when it moves up and down with the water level, and an end of the cover body away from the float body can close or open the liquid inlet;
[0006] The cross-sectional area of the float body gradually decreases in a direction away from the cover body.
[0007] Optionally, the float body is in the shape of a cone with a hollow interior.
[0008] Optionally, the cover body includes a first cover body and a second cover body, the first cover body is connected to the float body, an annular groove is provided at one end of the first cover body away from the float body, and the second cover body is inserted into the annular groove.
[0009] Optionally, the guide portion comprises a guide sleeve, and an end of the first cover body away from the float body is arranged in the guide sleeve and can move up and down along the guide sleeve.
[0010] Optionally, the guide portion further comprises a plurality of convex ribs arranged on the inner wall surface of the guide sleeve, the convex ribs protrude toward the central axis of the guide sleeve, and the convex ribs abut against the first cover body.
[0011] Optionally, the guide sleeve is cylindrical, and a plurality of convex ribs are evenly arranged around the inner circumference of the guide sleeve.
[0012] Optionally, a blocking block is provided on the second cover body, a liquid inlet pipe is provided on the tank body, the liquid inlet is provided at one end of the liquid inlet pipe close to the cover body, and the blocking block can abut against the liquid inlet pipe and close the liquid inlet.
[0013] Optionally, the tank body comprises a tank body main body and a chassis, the chassis is connected to the tank body main body and encloses a water storage cavity, and the float is arranged in the water storage cavity;
[0014] The liquid inlet pipeline is arranged on the tank body.
[0015] Optionally, the tank body is provided with an air outlet for passing water vapor generated by heating into the respirator.
[0016] On the other hand, an embodiment of the present invention provides a ventilator, comprising a humidification tank as described above.
[0017] The humidification tank provided by the embodiment of the utility model is configured such that the cross-sectional area of the float body gradually decreases in the direction away from the cover body. When there is too little water in the humidification tank and the float sinks to the bottom of the tank body, the contact area between the float body and the bottom of the tank body can be reduced, thereby reducing the situation where the float sticks to the bottom of the tank body and cannot float. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of a humidification tank provided in one embodiment of the utility model;
[0019] Figure 2 It is a cross-sectional schematic diagram of a humidification tank provided in one embodiment of the utility model;
[0020] Figure 3 It is a schematic diagram of a float provided by an embodiment of the utility model;
[0021] Figure 4 It is a cross-sectional schematic diagram of a float provided by one embodiment of the utility model.
[0022] The reference numerals in the specification are as follows:
[0023] 1. tank body; 11. guide part; 111. guide sleeve; 112. convex rib; 12. liquid inlet pipe; 121. liquid inlet; 13. tank body; 14. chassis; 15. air outlet; 16. water storage chamber;
[0024] 2. Float; 21. Float body; 22. Cover body; 221. First cover body; 222. Second cover body; 23. Sealing block. DETAILED DESCRIPTION
[0025] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0026] like Figures 1 to 4 As shown, a humidification tank provided by an embodiment of the utility model includes a tank body 1 and a float 2 arranged in the tank body 1, and the water level change in the tank body 1 can be monitored by the float 2. The float 2 includes a float body 21 and a cover body 22 connected to the float body 21, and the cover body 22 and the float body 21 can enclose to form a closed cavity, and the closed cavity is filled with air, so that the float 2 can float on the water surface.
[0027] A guide portion 11 is provided inside the tank body 1, and a liquid inlet 121 for filling liquid into the tank body 1 is provided on the guide portion 11. The end of the cover body 22 away from the float body 21 is connected to the guide portion 11, so that when the water level in the tank body 1 changes and the float 2 moves up and down with the water level, the guide portion 11 can guide the float 2 so that the float 2 can maintain a linear motion during movement, and the end of the cover body 22 away from the float body 21 can close or open the liquid inlet 121.
[0028] As the liquid is injected, the water level rises, the float 2 moves upward, and the end of the cover 22 away from the float body 21 gradually approaches the liquid inlet 121, until the water level rises to the highest, the end of the cover 22 away from the float body 21 can block the liquid inlet 121, and prevent the tank body 1 from continuing to be filled with liquid from the liquid inlet 121. The ventilator heats the humidification tank to generate water vapor, the water level in the tank body 1 drops, the float 2 moves downward, and the end of the cover 22 away from the float body 21 leaves the liquid inlet 121. When the water level is too low and reaches the warning line, liquid is injected through the liquid inlet 121.
[0029] The cross-sectional area of the float body 21 gradually decreases in the direction away from the cover body 22, wherein the cross-sectional area here refers to the cross-sectional area perpendicular to the moving direction of the float 2. Since the cross-sectional area of the float body 21 gradually decreases, when there is too little water in the humidification tank and the float 2 sinks to the bottom of the tank body 1, the contact area between the float body 21 and the bottom of the tank body 1 can be reduced, thereby reducing the situation where the float 2 adheres to the bottom of the tank body 1 and cannot float.
[0030] In one embodiment, if Figure 3 As shown, the float body 21 is a hollow cone, which can minimize the contact area between the float body 21 and the bottom of the tank body 1, so that the float 2 can maintain its floating function and avoid the float 2 and the tank body 1 from sticking to each other.
[0031] In one embodiment, if Figure 3 , Figure 4 As shown, the cover 22 includes a first cover 221 and a second cover 222. The first cover 221 is connected to the float body 21 and can seal the hollow cavity inside the float body 21. An annular groove is provided at one end of the first cover 221 away from the float body 21, and the second cover 222 is inserted into the annular groove. The second cover 222 is closer to the liquid inlet 121. When the float 2 moves up and down with the water level, the second cover 222 moves up and down with the float 2, so that it can move closer to or away from the liquid inlet 121, thereby achieving the effect of closing or opening the liquid inlet 121. Furthermore, the second cover 222 is inserted into the annular groove of the first cover 221, which can enhance the sealing effect and achieve the effect of double-layer waterproofing.
[0032] The first cover 221 is made of plastic, preferably PS (polystyrene) or ABS (acrylonitrile-butadiene-styrene copolymer). The first cover 221 includes a first part and a second part. The first part is closer to the float body 21. From the end of the first part away from the second part to the end of the first part close to the second part, the cross-sectional area of the first part gradually decreases. The second part is a cylindrical structure. The guide part 11 can guide the second part, thereby guiding the float 2 to move up and down. The connection between the first part and the second part has a smooth transition.
[0033] The second cover 222 is made of wear-resistant plastic, preferably POM (polyoxymethylene resin), which has good wear resistance and self-lubricating properties and has a good sealing effect on the liquid inlet 121.
[0034] In some alternative embodiments, the first cover body 221 and the second cover body 222 are an integrally formed structure.
[0035] In one embodiment, if Figure 2As shown, the guide portion 11 includes a guide sleeve 111, and one end of the first cover body 221 away from the float body 21 is arranged in the guide sleeve 111 and can move up and down along the guide sleeve 111. The guide sleeve 111 has a guiding effect on the movement of the first cover body 221, so that when the water level changes, the float 2 maintains up and down linear motion, can accurately dock with the liquid inlet 121, realize the closing and opening of the liquid inlet 121, and avoid the position of the float 2 from being offset and misaligned with the liquid inlet 121.
[0036] The second cover body 222 is located in the guide sleeve 111. At the connection between the first cover body 221 and the second cover body 222, the cross-sectional area of the second cover body 222 is smaller than the cross-sectional area of the first cover body 221. There is a gap between the second cover body 222 and the inner wall surface of the guide sleeve 111, and the second cover body 222 cannot contact the guide sleeve 111, which can reduce the contact area between the guide sleeve 111 and the float 2, thereby reducing the friction of the float 2 moving up and down.
[0037] In one embodiment, if Figure 2 As shown, the guide portion 11 also includes a plurality of ribs 112 arranged on the inner wall surface of the guide sleeve 111. The ribs 112 extend along the axial direction of the guide sleeve 111, and the ribs 112 protrude toward the central axis of the guide sleeve 111. The ribs 112 abut against the first cover body 221. When the guide portion 11 guides the cover body 22, the contact area between the cover body 22 and the guide portion 11 can be reduced, thereby reducing the friction resistance of the float 2.
[0038] In one embodiment, the guide sleeve 111 is cylindrical, and in the radial direction of the guide sleeve 111 , the cross-sectional shape of the rib 112 may be, but is not limited to, a triangle, a quadrilateral, or an arc.
[0039] In one embodiment, a plurality of convex ribs 112 are evenly arranged around the inner circumference of the guide sleeve 111, so that the portion of the first cover 221 located inside the guide sleeve 111 is coaxial with the guide sleeve 111, and no eccentricity occurs during the up and down movement. Further, at least three convex ribs 112 are arranged, and the three convex ribs 112 are evenly arranged on the circumference, and the central angle corresponding to two adjacent convex ribs 112 is 120°.
[0040] In one embodiment, if Figure 2 , Figure 3As shown, a blocking block 23 is provided on the second cover 222, and a liquid inlet pipe 12 is provided on the tank body 1. The liquid inlet pipe 12 is connected to a water bag or a water bottle, and a liquid inlet 121 is provided at one end of the liquid inlet pipe 12 close to the cover 22. The liquid in the water bag or the water bottle can be added to the tank body 1 through the liquid inlet pipe 12 and the liquid inlet 121. When the float 2 rises with the water level, the blocking block 23 can abut against the liquid inlet pipe 12 and close the liquid inlet 121. In the radial direction of the guide sleeve 111, the area of the blocking block 23 is at least larger than the area of the liquid inlet 121. Preferably, the area of the blocking block 23 is equal to the area of the end of the liquid inlet pipe 12 close to the cover 22.
[0041] In one embodiment, if Figure 2 As shown, the liquid inlet pipeline 12 includes a first section of pipeline and a second section of pipeline, the first section of pipeline is located outside the tank body 1, and the second section of pipeline extends from the outer wall of the tank body 1 to the inside of the guide sleeve 111, wherein the first section of pipeline has a first flow channel, and the cross-sectional area of the first flow channel remains unchanged. The second section of pipeline has a second flow channel, and the cross-sectional area of the second flow channel gradually decreases in the direction away from the first section of pipeline, and preferably, the second flow channel is conical.
[0042] In one embodiment, the blocking block 23 is arranged on the top of the second cover body 222, so that when the blocking block 23 contacts the liquid inlet pipe 12, under the action of buoyancy, a force can be exerted on the blocking block 23, thereby increasing the force of the blocking block 23 on the liquid inlet pipe 12 and ensuring the sealing effect of the liquid inlet 121.
[0043] In one embodiment, if Figure 2 As shown, the tank body 1 includes a tank body 13 and a chassis 14. The chassis 14 is connected to the tank body 13 and encloses a water storage chamber 16. The float 2 is arranged in the water storage chamber 16. The liquid inlet pipe 12 is arranged on the tank body 13. Liquid can be injected into the water storage chamber 16 through the liquid inlet pipe 12. When the water level rises, the float 2 can move upward until it reaches the upper limit when it abuts against the liquid inlet pipe 12.
[0044] In one embodiment, the bottom plate 14 is made of metal and has good heat conductivity, and can heat the liquid in the water storage chamber 16 and generate water vapor. The tank body 13 is provided with an air outlet 15, and the water vapor generated by heating enters the ventilator through the air outlet 15. Preferably, two air outlets 15 are provided.
[0045] On the other hand, an embodiment of the utility model provides a ventilator, comprising the humidification tank of the above embodiment.
[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A humidification tank, characterized in that: It comprises a tank body and a float arranged in the tank body; The float comprises a float body and a cover body connected to the float body, a guide portion is arranged in the tank body, a liquid inlet is arranged on the guide portion, an end of the cover body away from the float body is connected to the guide portion, the guide portion can guide the float when it moves up and down with the water level, and an end of the cover body away from the float body can close or open the liquid inlet; The cross-sectional area of the float body gradually decreases in a direction away from the cover body.
2. The humidification tank according to claim 1, characterized in that: The float body is in the shape of a cone with a hollow interior.
3. The humidification tank according to claim 1, characterized in that: The cover body includes a first cover body and a second cover body, the first cover body is connected to the float body, an annular groove is arranged at one end of the first cover body away from the float body, and the second cover body is inserted into the annular groove.
4. The humidification tank according to claim 3, characterized in that: The guide portion comprises a guide sleeve, and one end of the first cover body away from the float body is arranged in the guide sleeve and can move up and down along the guide sleeve.
5. The humidification tank according to claim 4, characterized in that: The guide portion further includes a plurality of convex ribs arranged on the inner wall surface of the guide sleeve, the convex ribs protrude toward the central axis of the guide sleeve, and the convex ribs abut against the first cover body.
6. The humidification tank according to claim 5, characterized in that: The guide sleeve is cylindrical, and a plurality of convex ribs are evenly arranged around the inner circumference of the guide sleeve.
7. The humidification tank according to claim 3, characterized in that: The second cover body is provided with a blocking block, the tank body is provided with a liquid inlet pipe, the liquid inlet is provided at one end of the liquid inlet pipe close to the cover body, and the blocking block can abut against the liquid inlet pipe and close the liquid inlet.
8. The humidification tank according to claim 7, characterized in that: The tank body comprises a tank body main body and a chassis, wherein the chassis is connected to the tank body main body and encloses a water storage cavity, and the float is arranged in the water storage cavity; The liquid inlet pipeline is arranged on the tank body.
9. The humidification tank according to claim 8, characterized in that: The tank body is provided with an air outlet for passing the water vapor generated by heating into the respirator.
10. A ventilator, characterized in that: The humidification tank comprises the humidification tank according to any one of claims 1 to 9.