Humidifying tank and breathing machine

Abstract

The utility model belongs to the technical field of breathing machines, and particularly relates to a humidifying tank and a breathing machine. The humidifying tank comprises a tank body, a first buoy, a second buoy, a linkage piece and a column valve, and the first buoy and the second buoy are arranged in the tank body; one end of the linkage piece is connected with the column valve, the other end of the linkage piece is connected with the first buoy and the second buoy, the first buoy and the second buoy move up and down along with the water level, and the column valve can be driven to move up and down through the linkage piece; a liquid inlet is formed in the tank body, and the column valve can close or open the liquid inlet. The water level is indicated through the first buoy and the second buoy, when one buoy breaks down, the other buoy can be used continuously, control over the water level in the tank body by the breathing machine cannot be affected, and the situation that when the buoys break down, water adding and stopping cannot be controlled in time is avoided; and the injury to the breathing machine and the patient is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of ventilators, 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 the float set inside the humidifier is used to realize the automatic water-adding component of the ventilator.

[0003] However, when the float fails, it will lead to the inability to timely control the addition and stop of water in the humidification tank, which will cause harm to the ventilator and the patient. Utility Model Content

[0004] The technical problem to be solved by the utility model is: to provide a humidification tank and a breathing machine for the problem that the addition and stop of water cannot be controlled when the existing float fails.

[0005] 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, a first float, a second float, a linkage and a column valve, wherein the first float and the second float are arranged in the tank body;

[0006] One end of the linkage is connected to the column valve, and the other end of the linkage is connected to the first float and the second float. The first float and the second float move up and down with the water level, and the column valve can be driven to move up and down through the linkage;

[0007] The tank body is provided with a liquid inlet, and the column valve can close or open the liquid inlet.

[0008] Optionally, the linkage member includes a first linkage member and a second linkage member, one end of the first linkage member is rotatably connected to the column valve, the other end of the first linkage member is rotatably connected to the first float, and the first linkage member can rotate around a first axis so that the first float and the column valve move in opposite directions;

[0009] One end of the second linkage is rotatably connected to the column valve, and the other end of the second linkage is rotatably connected to the second float, and the second linkage can rotate around a second axis so that the second float and the column valve move in opposite directions;

[0010] The first axis and the second axis are parallel.

[0011] Optionally, a first connecting member and a second connecting member are provided in the tank body, a first limiting hole is provided on the first connecting member, and a first limiting column for being inserted into the first limiting hole is provided on the first linkage member;

[0012] The second connecting member is provided with a second limiting hole, and the second linkage member is provided with a second limiting column for being inserted into the second limiting hole.

[0013] Optionally, the first linkage member includes at least one first connecting rod, a first pin is provided on the first float, a second pin is provided on the column valve, a first hole connected to the first pin is provided at one end of the first connecting rod, and a second hole connected to the second pin is provided at the other end of the first connecting rod.

[0014] Optionally, the second linkage member includes at least one second connecting rod, a third pin is provided on the second float, a third hole connected to the third pin is provided at one end of the second connecting rod, and a fourth hole connected to the second pin is provided at the other end of the second connecting rod;

[0015] The second connecting rod is located outside the first connecting rod in the axial direction of the second pin shaft.

[0016] Optionally, a guide portion is provided in the tank body, the guide portion includes a guide sleeve and a plurality of convex ribs, the column valve is provided in the guide sleeve, and the convex ribs protrude toward the central axis of the guide sleeve and abut against the column valve.

[0017] Optionally, a liquid inlet pipe is provided on the tank body, and the liquid inlet pipe is connected to the guide sleeve through the liquid inlet port. A plug is provided on the column valve, and the column valve moves in the guide sleeve and drives the plug to block or open the liquid inlet port.

[0018] Optionally, an end of the plug away from the column valve is arranged in the liquid inlet pipeline;

[0019] When the column valve moves downward, it drives the plug to move downward and blocks the liquid inlet. When the column valve moves upward, it drives the plug to move upward and opens the liquid inlet.

[0020] Optionally, one end of the liquid inlet pipe close to the guide sleeve is in an inverted cone shape.

[0021] On the other hand, an embodiment of the present invention provides a ventilator, comprising a humidification tank as described above.

[0022] The humidification tank provided by the embodiment of the utility model indicates the water level through the first float and the second float, thereby realizing real-time monitoring of the water level. When one of them fails, the other can continue to be used without affecting the ventilator's control over the water level in the tank body, thereby avoiding the situation where the addition and stopping of water cannot be controlled in time when the float fails, thereby reducing damage to the ventilator and the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of a humidification tank provided in one embodiment of the utility model;

[0024] Figure 2 It is a top view of a humidification tank provided by an embodiment of the utility model;

[0025] Figure 3 yes Figure 2 Schematic diagram of the AA section;

[0026] Figure 4 yes Figure 2 Schematic diagram of the cross section along the BB direction;

[0027] Figure 5 This is a schematic diagram of the connection between the linkage member and the column valve provided in one embodiment of the utility model;

[0028] Figure 6 It is a schematic diagram of a linkage member provided in one embodiment of the utility model.

[0029] The reference numerals in the specification are as follows:

[0030] 1. tank body; 11. first connecting piece; 12. second connecting piece; 13. guide part; 131. guide sleeve; 132. convex rib; 14. liquid inlet pipe; 141. liquid inlet; 15. air outlet;

[0031] 2. First float; 21. First pin

[0032] 3. The second float; 31. The third pin;

[0033] 4. Linkage member; 41. First linkage member; 411. First connecting rod; 4111. First hole; 4112. Second hole; 412. First reinforcing rod; 413. First limiting column; 42. Second linkage member; 421. Second connecting rod; 4211. Third hole; 4212. Fourth hole; 422. Second reinforcing rod; 423. Second limiting column;

[0034] 5. Column valve; 51. Second pin shaft; 52. Plug. DETAILED DESCRIPTION

[0035] 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.

[0036] like Figures 1 to 6As shown, a humidification tank provided by one embodiment of the utility model includes a tank body 1, a first float 2, a second float 3, a linkage 4 and a column valve 5. The first float 2 and the second float 3 are arranged in the tank body 1. Water is injected into the tank body 1. The interior of the first float 2 and the second float 3 is hollow and filled with gas, and can float on the water surface to indicate water level changes.

[0037] One end of the linkage 4 is connected to the column valve 5, and the other end of the linkage 4 is connected to the first float 2 and the second float 3. The first float 2 and the second float 3 move up and down with the water level, and the column valve 5 can be driven to move up and down through the linkage 4. The tank body 1 is provided with a liquid inlet 141, and the column valve 5 moves to close or open the liquid inlet 141.

[0038] As water is injected, the water level in the tank body 1 rises, and when the first float 2 and the second float 3 move upward to the highest point, the column valve 5 blocks the liquid inlet 141, preventing water from continuing to be injected into the tank body 1 from the liquid inlet 141. The ventilator heats the humidification tank to generate water vapor, the water level in the tank body 1 drops, the first float 2 and the second float 3 move downward, and the column valve 5 opens the liquid inlet 141.

[0039] The water level is indicated by the first float 2 and the second float 3. The first float 2 and the second float 3 can both realize real-time monitoring of the water level. When one of them fails, the other can continue to be used without affecting the ventilator's control over the water level in the tank 1. This avoids the situation where the addition and stopping of water cannot be controlled in time when the float fails, thereby reducing damage to the ventilator and the patient.

[0040] In one embodiment, if Figure 3 As shown, the linkage 4 includes a first linkage 41 and a second linkage 42. One end of the first linkage 41 is rotatably connected to the column valve 5, and the other end of the first linkage 41 is rotatably connected to the first float 2. The first linkage 41 can rotate around the first axis, so that the first float 2 and the column valve 5 move in opposite directions. When the first float 2 moves upward in the tank body 1 under the influence of buoyancy, it will drive the first linkage 41 to rotate around the first axis, thereby driving the column valve 5 to move downward. When the water level of the tank body 1 drops and the first float 2 moves downward, it drives the first linkage 41 to rotate around the first axis, thereby driving the column valve 5 to move upward.

[0041] Among them, Figure 4 As shown, the first linkage 41 is divided into two parts with the first axis as the dividing line, the first part is located between the first axis and the column valve 5, and the second part is located between the first axis and the first float 2. The length of the first part is smaller than the length of the second part. When the first linkage 41 rotates, it plays a role of amplifying the force, so that the column valve 5 is tightly abutted against the liquid inlet 141, thereby ensuring the sealing effect of the liquid inlet 141.

[0042] One end of the second linkage 42 is rotationally connected to the column valve 5, and the other end of the second linkage 42 is rotationally connected to the second float 3. The second linkage 42 can rotate around the second axis, so that the second float 3 and the column valve 5 move in opposite directions. The first axis is parallel to the second axis. When the second float 3 moves upward in the tank body 1 under the influence of buoyancy, it will drive the second linkage 42 to rotate around the second axis, thereby driving the column valve 5 to move downward. When the water level of the tank body 1 drops and the second float 3 moves downward, it drives the second linkage 42 to rotate around the second axis, thereby driving the column valve 5 to move upward.

[0043] Among them, the second linkage 42 is divided into two parts with the second axis as the dividing line, the first part is located between the second axis and the column valve 5, and the second part is located between the second axis and the second float 3. The length of the first part is smaller than the length of the second part. When the second linkage 42 rotates, it has the effect of amplifying the force, so that the column valve 5 is tightly abutted against the liquid inlet 141, thereby ensuring the sealing effect of the liquid inlet 141.

[0044] In one embodiment, if Figure 4 As shown, the tank body 1 is provided with a first connecting member 11 and a second connecting member 12, the first connecting member 11 is provided with a first limiting hole, the first linkage member 41 is provided with a first limiting column 413 for inserting into the first limiting hole, and the central axis of the first limiting column 413 is the first axis. The first connecting member 11 and the first linkage member 41 are rotatably connected by the cooperation between the first limiting column 413 and the first limiting hole.

[0045] The second connecting member 12 is provided with a second limiting hole, and the second linkage member 42 is provided with a second limiting column 423 for inserting into the second limiting hole, and the central axis of the second limiting column 423 is the second axis. The second connecting member 12 and the second linkage member 42 are rotatably connected by the cooperation between the second limiting column 423 and the second limiting hole.

[0046] The first float 2 and the second float 3 can move synchronously on the water surface, the first linkage 41 rotates through the first limiting column 413, the second linkage 42 rotates through the second limiting column 423, and the first linkage 41 and the second linkage 42 jointly push the column valve 5 to move.

[0047] In one embodiment, two first connecting members 11 are provided, and correspondingly, two first limiting columns 413 are provided, and the central axes of the two first limiting columns 413 coincide with each other. The first linkage member 41 is located between the two first connecting members 11, and each first limiting column 413 is inserted into the first limiting hole of the first connecting member 11 on the same side thereof. By providing two first connecting members 11, the connection stability of the first linkage member 41 can be ensured.

[0048] In one embodiment, two second connecting members 12 are provided, and correspondingly, two second limiting columns 423 are provided, and the central axes of the two second limiting columns 423 coincide with each other. The second linkage member 42 is located between the two second connecting members 12, and each second limiting column 423 is inserted into the second limiting hole of the second connecting member 12 on the same side thereof. By providing two second connecting members 12, the connection stability of the second linkage member 42 can be ensured.

[0049] In one embodiment, if Figure 5 , Figure 6 As shown, the first linkage 41 includes at least one first connecting rod 411, a first limiting column 413 is arranged on the first connecting rod 411, a first pin 21 is arranged on the first float 2, a second pin 51 is arranged on the column valve 5, and a first hole 4111 connected to the first pin 21 is arranged at one end of the first connecting rod 411, and the first connecting rod 411 and the first float 2 are rotatably connected by the cooperation of the first hole 4111 and the first pin 21. The other end of the first connecting rod 411 is provided with a second hole 4112 connected to the second pin 51, and the first connecting rod 411 and the column valve 5 are rotatably connected by the cooperation of the second hole 4112 and the second pin 51, thereby realizing the linkage effect of the first float 2 and the column valve 5.

[0050] In one embodiment, if Figure 5 , Figure 6 As shown, two first connecting rods 411 are provided, namely a first left connecting rod and a first right connecting rod, and correspondingly, two first pin shafts 21 are provided on the first float 2, and the two first pin shafts 21 are symmetrically arranged. The first float 2 is arranged between one end of the first left connecting rod and one end of the first right connecting rod, one of the first pin shafts 21 is connected to the first hole 4111 of the first left connecting rod, and the other first pin shaft 21 is connected to the first hole 4111 of the first right connecting rod.

[0051] The column valve 5 is arranged between the other end of the first left connecting rod and the other end of the first right connecting rod, and two second pin shafts 51 are arranged on the column valve 5, and the two second pin shafts 51 are arranged symmetrically. One of the second pin shafts 51 is connected to the second hole 4112 of the first left connecting rod, and the other second pin shaft 51 is connected to the second hole 4112 of the first right connecting rod. The connection stability can be ensured by providing two first connecting rods 411.

[0052] Among them, the first left connecting rod and the first right connecting rod are stepped, and the distance between one end of the first left connecting rod and one end of the first right connecting rod is smaller than the distance between the other end of the first left connecting rod and the other end of the first right connecting rod to adapt to the different sizes of the first float 2 and the column valve 5.

[0053] In one embodiment, if Figure 5As shown, the first linkage member 41 further includes a first reinforcing rod 412 . The first reinforcing rod 412 is connected between the first left link and the first right link, and can increase the strength of the first linkage member 41 .

[0054] In one embodiment, if Figure 5 , Figure 6 As shown, the second linkage 42 includes at least one second link 421, a second limiting column 423 is arranged on the second link 421, a third pin 31 is arranged on the second float 3, and a third hole 4211 connected to the third pin 31 is arranged at one end of the second link 421, and the rotation connection between the second link 421 and the second float 3 is realized through the cooperation of the third hole 4211 and the third pin 31. The other end of the second link 421 is provided with a fourth hole 4212 connected to the second pin 51, and the rotation connection between the second link 421 and the column valve 5 is realized through the cooperation of the fourth hole 4212 and the second pin 51, thereby realizing the linkage effect between the second float 3 and the column valve 5.

[0055] In one embodiment, if Figure 5 , Figure 6 As shown, two second connecting rods 421 are provided, namely a second left connecting rod and a second right connecting rod, and correspondingly, two third pins 31 are provided on the second float 3, and the two third pins 31 are symmetrically arranged. The second float 3 is arranged between one end of the second left connecting rod and one end of the second right connecting rod, one of the third pins 31 is connected to the third hole 4211 of the second left connecting rod, and the other third pin 31 is connected to the third hole 4211 of the second right connecting rod.

[0056] The column valve 5 is arranged between the other end of the second left connecting rod and the other end of the second right connecting rod, and two second pin shafts 51 are arranged on the column valve 5, and the two second pin shafts 51 are arranged symmetrically. One of the second pin shafts 51 is connected to the fourth hole 4212 of the second left connecting rod, and the other second pin shaft 51 is connected to the fourth hole 4212 of the second right connecting rod. The connection stability can be ensured by providing two second connecting rods 421.

[0057] Among them, the second left connecting rod and the second right connecting rod are step-shaped, and the distance between one end of the second left connecting rod and one end of the second right connecting rod is smaller than the distance between the other end of the second left connecting rod and the other end of the second right connecting rod to adapt to the different sizes of the second float 3 and the column valve 5.

[0058] In one embodiment, if Figure 6As shown, in order to avoid interference between the first connecting rod 411 and the second connecting rod 421, the second connecting rod 421 is located outside the first connecting rod 411 in the axial direction of the second pin shaft 51. It can be understood that in order to facilitate the connection between the first connecting rod 411 and the second pin shaft 51, the second hole 4112 is non-circular, and the second hole 4112 penetrates the first connecting rod 411 in the width direction of the first connecting rod 411, so that the second pin shaft 51 enters the second hole 4112 through the opening on the first connecting rod 411. The first connecting rod 411 is prevented from being deformed when connected to the second pin shaft 51.

[0059] In one embodiment, if Figure 5 , Figure 6 As shown, the second linkage member 42 further includes a second reinforcement rod 422 . The second reinforcement rod 422 is connected between the second left link and the second right link, and can increase the strength of the second linkage member 42 .

[0060] In one embodiment, if Figure 3 As shown, a guide portion 13 is provided in the tank body 1, and the guide portion 13 includes a guide sleeve 131 and a plurality of convex ribs 132. The column valve 5 is arranged in the guide sleeve 131. The column valve 5 can move up and down along the guide sleeve 131. The guide sleeve 131 has a guiding effect on the movement of the column valve 5, so that when the water level changes, the column valve 5 maintains a straight line movement up and down, and can accurately dock with the liquid inlet 141, so as to realize the closing and opening of the liquid inlet 141.

[0061] The rib 132 extends along the axial direction of the guide sleeve 131. The rib 132 protrudes toward the central axis of the guide sleeve 131 and abuts against the column valve 5. When the guide sleeve 131 guides the column valve 5, the contact area between the column valve 5 and the guide sleeve 131 can be reduced, thereby reducing friction resistance.

[0062] In one embodiment, the guide sleeve 131 is cylindrical, and in the radial direction of the guide sleeve 131 , the cross-sectional shape of the rib 132 may be, but is not limited to, a triangle, a quadrilateral, or an arc.

[0063] In one embodiment, a plurality of convex ribs 132 are evenly arranged around the inner circumference of the guide sleeve 131, so that the column valve 5 is coaxial with the guide sleeve 131 and does not eccentrically move in the process of moving up and down. Further, at least three convex ribs 132 are arranged, and the three convex ribs 132 are evenly arranged on the circumference, and the central angle corresponding to two adjacent convex ribs 132 is 120°.

[0064] In one embodiment, if Figure 3 , Figure 4As shown, the tank body 1 is provided with a liquid inlet pipe 14, which is connected to the guide sleeve 131 through the liquid inlet port 141, and the column valve 5 is provided with a plug 52, which moves in the guide sleeve 131 and drives the plug 52 to block or open the liquid inlet port 141. The column valve 5 is provided with a connecting hole, the inner wall of which has an internal thread, and the plug 52 is threadedly connected to the column valve 5, so as to facilitate the installation of the plug 52 and the column valve 5.

[0065] In one embodiment, the end of the plug 52 away from the column valve 5 is disposed in the liquid inlet pipe 14, and the column valve 5 can drive the plug 52 to move up and down in the liquid inlet pipe 14. When the first float 2 and the second float 3 move upward, the column valve 5 is driven downward by the first linkage 41, thereby driving the plug 52 to move downward and block the liquid inlet 141. When the first float 2 and the second float 3 move downward, the column valve 5 is driven upward by the first linkage 41, thereby driving the plug 52 to move upward and open the liquid inlet 141.

[0066] In one embodiment, if Figure 3 , Figure 6 As shown, the end of the liquid inlet pipe 14 close to the guide sleeve 131 is in an inverted cone shape, and the end of the plug 52 away from the column valve 5 is in a cone shape. When the plug 52 enters the liquid inlet pipe 14, the liquid inlet port 141 can be blocked.

[0067] In one embodiment, if Figure 1 As shown, the tank body 1 is provided with an air outlet 15, and the water vapor generated by heating enters the respirator through the air outlet 15. Preferably, two air outlets 15 are provided.

[0068] On the other hand, an embodiment of the utility model provides a ventilator, comprising the humidification tank of the above embodiment.

[0069] 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, a first float, a second float, a linkage and a column valve, wherein the first float and the second float are arranged in the tank body; One end of the linkage is connected to the column valve, and the other end of the linkage is connected to the first float and the second float. When the first float and the second float move up and down with the water level, the column valve can be driven to move up and down through the linkage; The tank body is provided with a liquid inlet, and the column valve can close or open the liquid inlet under the drive of the linkage member.

2. The humidification tank according to claim 1, characterized in that: The linkage member comprises a first linkage member and a second linkage member, one end of the first linkage member is rotatably connected to the column valve, the other end of the first linkage member is rotatably connected to the first float, and the first linkage member can rotate around a first axis so that the first float and the column valve move in opposite directions; One end of the second linkage is rotatably connected to the column valve, and the other end of the second linkage is rotatably connected to the second float, and the second linkage can rotate around a second axis so that the second float and the column valve move in opposite directions; The first axis and the second axis are parallel.

3. The humidification tank according to claim 2, characterized in that: The tank body is provided with a first connecting member and a second connecting member, the first connecting member is provided with a first limiting hole, and the first linkage member is provided with a first limiting column for being inserted into the first limiting hole; The second connecting member is provided with a second limiting hole, and the second linkage member is provided with a second limiting column for being inserted into the second limiting hole.

4. The humidification tank according to claim 2, characterized in that: The first linkage member includes at least one first connecting rod, a first pin is provided on the first float, a second pin is provided on the column valve, a first hole connected to the first pin is provided at one end of the first connecting rod, and a second hole connected to the second pin is provided at the other end of the first connecting rod.

5. The humidification tank according to claim 4, characterized in that: The second linkage member includes at least one second connecting rod, a third pin is provided on the second float, a third hole connected to the third pin is provided at one end of the second connecting rod, and a fourth hole connected to the second pin is provided at the other end of the second connecting rod; The second connecting rod is located outside the first connecting rod in the axial direction of the second pin shaft.

6. The humidification tank according to claim 1, characterized in that: A guide portion is arranged in the tank body, and the guide portion includes a guide sleeve and a plurality of convex ribs. The column valve is arranged in the guide sleeve, and the convex ribs protrude toward the central axis of the guide sleeve and abut against the column valve.

7. The humidification tank according to claim 6, characterized in that: The tank body is provided with a liquid inlet pipeline, the liquid inlet pipeline is connected to the guide sleeve through the liquid inlet, the column valve is provided with a plug, the column valve moves in the guide sleeve and drives the plug to block or open the liquid inlet.

8. The humidification tank according to claim 7, characterized in that: One end of the plug away from the column valve is arranged in the liquid inlet pipeline; When the column valve moves downward, it drives the plug to move downward and blocks the liquid inlet. When the column valve moves upward, it drives the plug to move upward and opens the liquid inlet.

9. The humidification tank according to claim 7, characterized in that: One end of the liquid inlet pipe close to the guide sleeve is in an inverted cone shape.

10. A ventilator, characterized in that: The humidification tank comprises the humidification tank according to any one of claims 1 to 9.

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