Automatic water injection device for humidifying tank of breathing machine

Abstract

The utility model relates to the technical field of humidifying tanks, in particular to an automatic water injection device for a humidifying tank of a breathing machine, which comprises a liquid storage tank, the top of the liquid storage tank is connected with a tank cover, the inner wall of the liquid storage tank is connected with a partition plate, the partition plate is in a conical surface protruding shape, and when the liquid storage tank is collided, the liquid level in the liquid storage tank fluctuates. Since the liquid impacts on the tank wall and fluctuates more violently at the position where the edge of the liquid level is in contact with the inner wall of the liquid storage tank, the fluctuating liquid can be in contact with the partition plates preferentially by arranging the partition plates in the liquid storage tank and forming dense and fine vent holes, and due to the tension of the liquid, the fluctuation of the liquid is reduced. The liquid does not directly penetrate through the vent holes, so that the fluctuation of the liquid level is blocked and stopped, and the conical raised partition plate can guide the fluctuation of the liquid to the central position of the liquid level to consume potential energy generated by the fluctuation, so that the liquid level can be recovered to be calm as soon as possible.

Description

Technical Field

[0001] The utility model relates to the technical field of humidification tanks, in particular to an automatic water filling device for a humidification tank of a breathing machine. Background Art

[0002] The respiratory tract humidification tank is an important medical device connected between the ventilator and the patient. Its function is to heat and humidify the inhaled gas. Good heating and humidification can prevent and reduce secondary respiratory infections in mechanically ventilated patients, as well as stimulation to the cardiopulmonary system, and keep the alveoli moist. At the same time, it can also reduce the consumption of heat and respiratory water, making it difficult for the airway to produce sputum crusts, and can reduce the viscosity of secretions and promote expectoration. However, during the use of the ventilator, the mixed gas will take away the water in the humidification tank body. Therefore, the water in the humidification tank body will gradually decrease, and humidification liquid must be added after a period of use, which is more troublesome.

[0003] The prior art, such as announcement number CN219022844U, provides a humidification water tank, including a tank body and a base with threaded matching, the tank body is provided with an air inlet pipe, an air outlet pipe, and a water supply pipe, and the bottom tank wall of the tank body is divided into two parts: an inner tank wall and an outer tank wall, the inner side of the outer tank wall is provided with an inner thread, the upper surface of the base is fixed with a base convex ring, the upper surface of the base convex ring is placed with a sealing ring, the outer surface of the base convex ring is provided with an outer thread, the outer thread matches the inner thread, and the inner tank wall is pressed on the upper surface of the sealing ring. Compared with the prior art, the technical effect of the utility model is that the utility model is provided with a sealing ring between the tank body and the base, so that the sealing between the tank body and the base is better and not easy to leak.

[0004] The humidifier tank has a scale line, and the water level cannot exceed the scale line. If it exceeds the scale line, the water droplets will easily mix into the oxygen and choke the patient. In this scheme, as the humidifier tank continues to work and the moist air is continuously pumped out, the water in the humidifier tank is also continuously consumed, and the liquid level will also drop. When the float leaves the outlet of the water supply pipe, the water supply pipe starts to replenish water again, and the cycle is repeated to achieve the purpose of automatic replenishment and avoid the liquid level from crossing the scale line. However, in actual use, it is inevitable that the ventilator will be accidentally touched, causing the humidifier tank to tilt, which can easily cause the liquid level of the humidifier tank to fluctuate and cause the liquid level to cross the scale line. In view of this, we propose an automatic water filling device for the humidifier tank of the ventilator. Utility Model Content

[0005] The utility model aims to provide an automatic water filling device for a humidifier tank of a respirator, which solves the problem that water droplets are easily mixed into oxygen and choke patients due to water level exceeding the limit caused by collision.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A ventilator humidifier tank automatic water filling device comprises a liquid storage tank, the top of the liquid storage tank is connected to a tank cover, the inner wall of the liquid storage tank is connected to a partition, the partition is in the shape of a conical surface, the inclination angle of the cone is less than fifteen degrees, and the inner wall of the partition is provided with an air vent. When the liquid storage tank is collided, the liquid level inside the liquid storage tank will fluctuate, and the position where the edge of the liquid surface contacts the inner wall of the liquid storage tank, due to the collision of the liquid and the tank wall, the fluctuation will be more violent, by arranging the partition inside the liquid storage tank and providing dense and small air vents, the fluctuating liquid will contact the partition first, and due to the tension of the liquid itself, the liquid will not directly pass through the air vents, resulting in the fluctuation of the liquid level being blocked and stopped, and the partition in the shape of a conical surface will guide the liquid fluctuation to the position of the center of the liquid surface to consume the potential energy generated by the fluctuation, so that the liquid surface can return to calm as soon as possible, and the air vent can ensure the normal circulation of air to achieve the purpose of moistening the air to protect the respiratory mucosa of the human body.

[0008] Preferably, a magnetic pad is provided at the bottom of the liquid storage tank, and the stability of the liquid storage tank when placed can be increased by providing the magnetic pad for magnetic adsorption.

[0009] Preferably, a fluid infusion tube is connected to the middle of the top of the tank cover, and the fluid infusion tube is used to replenish the solution. Positions on both sides of the top of the tank cover are respectively connected to ventilation tubes, and the ventilation tubes are used to connect to a ventilator.

[0010] Preferably, one end of the bottom of the infusion tube is below the partition, and one end of the bottom of the ventilation tube is above the partition.

[0011] Preferably, a scale bar is connected to the front of the liquid storage tank, and the scale bar consists of a lower scale line and an upper scale line. The upper scale line is above the lower scale line. By setting the scale bar, it is convenient for staff to check the liquid level. The upper scale line is a warning scale and should not be exceeded, and the lower scale line is a safety scale.

[0012] Preferably, the inner wall of the infusion tube is connected to a sealing ring, a float is arranged below the sealing ring inside the infusion tube, and a flow groove is connected to the wall of the infusion tube below the sealing ring. By arranging the float inside the infusion tube, since the float floats on the liquid surface, when the solution is sufficient, the buoyancy will lift the float to block the sealing ring. When the solution is insufficient, the float will follow the liquid level drop and leave the sealing ring to form a passage to replenish the solution, thereby achieving the purpose of automatically replenishing the solution.

[0013] Preferably, the sealing ring is located below the partition, and an arc-shaped concave surface is provided on the inner wall of the sealing ring. By providing the arc-shaped concave surface on the sealing ring, the contact area between the sealing ring and the float can be increased, thereby improving the sealing performance.

[0014] By means of the above technical solution, the utility model provides an automatic water filling device for a humidifier tank of a ventilator. It has at least the following beneficial effects:

[0015] 1. When the liquid storage tank of the utility model is hit, the liquid level inside the liquid storage tank will fluctuate, and the position where the edge of the liquid surface contacts the inner wall of the liquid storage tank will cause more violent fluctuations due to the collision between the liquid and the tank wall. By arranging a partition inside the liquid storage tank and opening dense and small vents, the fluctuating liquid will first contact the partition, and due to the tension of the liquid itself, the liquid will not directly pass through the vents, resulting in the oscillation of the liquid surface being blocked and stopped, and the conical raised partition will guide the liquid fluctuation to the center of the liquid surface to consume the potential energy generated by the fluctuation, so that the liquid surface can return to calm as soon as possible, and the vents can ensure the normal circulation of air to achieve the purpose of moistening the air to protect the respiratory mucosa of the human body.

[0016] 2. The utility model arranges a float inside the liquid replenishing tube. Since the float floats on the liquid surface, when the solution is sufficient, the buoyancy will lift the float to block the sealing ring. When the solution is insufficient, the float will follow the liquid level drop and leave the sealing ring to form a passage to replenish the solution, thereby achieving the purpose of automatically replenishing the solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a partial cross-sectional view of the utility model;

[0020] Figure 3 This is a schematic diagram of the overall structure of the partition in the utility model;

[0021] Figure 4 It is a partial cross-sectional view of the liquid infusion tube in the utility model.

[0022] In the figure: 1, liquid storage tank; 11, scale line; 111, lower scale line; 112, upper scale line; 12, partition; 121, vent hole; 2, tank cover; 21, vent pipe; 3, liquid replenishment pipe; 31, sealing ring; 311, arc-shaped concave surface; 32, float; 33, flow slot; 4, magnetic pad. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example 1

[0025] A humidifier tank automatic water filling device for a ventilator, such as Figure 1 - Figure 4 As shown, it includes a liquid storage tank 1, the top of the liquid storage tank 1 is connected to a tank cover 2, the inner wall of the liquid storage tank 1 is connected to a partition 12, the partition 12 is in the shape of a conical bulge, the inclination angle of the cone is less than fifteen degrees, and the inner wall of the partition 12 is provided with an air vent 121. When the liquid storage tank 1 is collided, the liquid level inside the liquid storage tank 1 will fluctuate, and at the position where the edge of the liquid surface contacts the inner wall of the liquid storage tank 1, due to the collision of the liquid with the tank wall, the fluctuation will be more violent, by arranging the partition 12 inside the liquid storage tank 1 and providing dense and small air vents 121, the fluctuating liquid will first contact the partition 12, and due to the tension of the liquid itself, the liquid will not directly pass through the air vent 121, resulting in the fluctuation of the liquid level being blocked and stopped, and the partition 12 in the shape of a conical bulge will guide the liquid fluctuation to the center of the liquid surface to consume the potential energy generated by the fluctuation, so that the liquid surface can return to calm as soon as possible, and the air vent 121 can ensure The normal circulation of air can achieve the purpose of moistening the air to protect the respiratory mucosa of the human body. A magnetic pad 4 is arranged at the bottom of the liquid storage tank 1. By setting the magnetic adsorption method of the magnetic pad 4, the stability of the liquid storage tank 1 can be increased. A liquid infusion tube 3 is connected to the middle position of the top of the tank cover 2. The liquid infusion tube 3 is used to replenish the solution. The top of the tank cover 2 is connected to the positions on both sides of the liquid infusion tube 3. The ventilation tube 21 is used to connect the ventilator. One end of the bottom of the liquid infusion tube 3 is below the partition 12, and one end of the bottom of the ventilation tube 21 is above the partition 12. A scale bar 11 is connected to the front of the liquid storage tank 1. The scale bar 11 consists of a lower scale line 111 and an upper scale line 112. The upper scale line 112 is above the lower scale line 111. By setting the scale bar 11, it is convenient for the staff to check the liquid level. The upper scale line 112 is a warning scale that should not be exceeded, and the lower scale line 111 is a safety scale.

[0026] In this embodiment, when the liquid storage tank 1 is hit, the liquid level inside the liquid storage tank 1 will fluctuate, and at the position where the edge of the liquid surface contacts the inner wall of the liquid storage tank 1, the fluctuation will be more violent due to the collision of the liquid with the tank wall. By arranging a partition 12 inside the liquid storage tank 1 and opening dense and small air vents 121, the fluctuating liquid will preferentially contact the partition 12, and due to the tension of the liquid itself, the liquid will not directly pass through the air vents 121, resulting in the fluctuation of the liquid level being blocked and stopped, and the conical raised partition 12 will guide the liquid fluctuation to the center of the liquid surface to consume the potential energy generated by the fluctuation, so that the liquid surface can return to calm as soon as possible, and the air vents 121 can ensure the normal circulation of air to achieve the purpose of humidifying the air, and by setting the scale bar 11, it is convenient for the staff to check the liquid level, the upper scale line 112 is a warning scale, which should not be exceeded, and the lower scale line 111 is a safety scale.

[0027] Example 2

[0028] like Figure 4 As shown, the inner wall of the infusion tube 3 is connected with a sealing ring 31, and a float 32 is arranged below the sealing ring 31 inside the infusion tube 3. The wall of the infusion tube 3 below the sealing ring 31 is connected with a flow groove 33. By arranging the float 32 inside the infusion tube 3, since the float 32 floats on the liquid surface, when the solution is sufficient, the buoyancy will lift the float 32 to block the sealing ring 31. When the solution is insufficient, the float 32 will follow the drop of the liquid level and leave the sealing ring 31 to form a passage to replenish the solution, so as to achieve the purpose of automatically replenishing the solution. The sealing ring 31 is located below the partition 12, and the inner wall of the sealing ring 31 is provided with an arc-shaped concave surface 311. By arranging the arc-shaped concave surface 311 on the sealing ring 31, the contact area between the sealing ring 31 and the float 32 can be increased, and the sealing performance can be improved.

[0029] In this embodiment, by setting the float 32 inside the liquid replenishing tube 3, since the float 32 floats on the liquid surface, when the solution is sufficient, the buoyancy will lift the float 32 to block the sealing ring 31. When the solution is insufficient, the float 32 will follow the liquid level drop and leave the sealing ring 31 to form a passage to replenish the solution, thereby achieving the purpose of automatically replenishing the solution.

[0030] When the automatic water filling device for the humidifier tank of the utility model is in use, when the liquid storage tank 1 is hit, the liquid level inside the liquid storage tank 1 will fluctuate, and at the position where the edge of the liquid surface contacts the inner wall of the liquid storage tank 1, the fluctuation will be more violent due to the collision of the liquid with the tank wall. By arranging a partition 12 inside the liquid storage tank 1 and opening dense and small vents 121, the fluctuating liquid will first contact the partition 12, and due to the tension of the liquid itself, the liquid will not directly pass through the vents 121, resulting in the fluctuation of the liquid level being blocked and stopped, and the partition 12 with a conical bulge will guide the liquid fluctuation to the center of the liquid surface to consume the fluctuation. The potential energy generated by the movement can make the liquid surface return to calm as soon as possible, and the vent hole 121 can ensure the normal circulation of air to achieve the purpose of humidifying the air. The scale bar 11 is set to facilitate the staff to check the liquid level. The upper scale line 112 is a warning scale that should not be exceeded, and the lower scale line 111 is a safety scale. The float 32 is set inside the liquid replenishment tube 3. Since the float 32 floats on the liquid surface, when the solution is sufficient, the buoyancy will lift the float 32 to block the sealing ring 31. When the solution is insufficient, the float 32 will follow the liquid level drop and leave the sealing ring 31 to form a passage to replenish the solution, so as to achieve the purpose of automatically replenishing the solution.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic water filling device for a humidifier tank of a ventilator, comprising a liquid storage tank (1), characterized in that: The top of the liquid storage tank (1) is connected to a tank cover (2), the inner wall of the liquid storage tank (1) is connected to a partition (12), the partition (12) is in the shape of a conical bulge, the inclination angle of the conical surface is less than 15 degrees, and the inner wall of the partition (12) is provided with a vent hole (121).

2. The automatic water filling device for a humidifier tank of a respirator according to claim 1, characterized in that: The bottom of the liquid storage tank (1) is provided with a magnetic pad (4) connected thereto.

3. The automatic water filling device for a humidifier tank of a breathing machine according to claim 1 is characterized in that: A liquid infusion tube (3) is connected to the middle of the top of the tank cover (2), and ventilation tubes (21) are respectively connected to the positions on both sides of the liquid infusion tube (3) at the top of the tank cover (2).

4. The automatic water filling device for a humidifier tank of a breathing machine according to claim 3 is characterized in that: One end of the bottom of the liquid infusion tube (3) is located below the partition (12), and one end of the bottom of the ventilation tube (21) is located above the partition (12).

5. The automatic water filling device for a humidifier tank of a breathing machine according to claim 1, characterized in that: A scale bar (11) is connected to the front of the liquid storage tank (1), the scale bar (11) comprising a lower scale line (111) and an upper scale line (112), the upper scale line (112) being located above the lower scale line (111).

6. The automatic water filling device for a humidifying tank of a breathing machine according to claim 4, characterized in that: The inner wall of the liquid infusion tube (3) is connected to a sealing ring (31), a floating ball (32) is arranged below the sealing ring (31) inside the liquid infusion tube (3), and a circulation groove (33) is connected to the wall of the liquid infusion tube (3) below the sealing ring (31).

7. The automatic water filling device for a humidifier tank of a breathing machine according to claim 6, characterized in that: The sealing ring (31) is located below the partition plate (12), and an arc-shaped concave surface (311) is formed on the inner wall of the sealing ring (31).

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