CN214596724U

CN214596724U - Automatic water adding and cutting-off device of breathing machine

Info

Publication number: CN214596724U
Application number: CN202022176467.5U
Authority: CN
Inventors: 陈莹; 陈思思; 刘恩红
Original assignee: Jianghan University
Current assignee: Jianghan University
Priority date: 2020-09-28
Filing date: 2020-09-28
Publication date: 2021-11-05
Anticipated expiration: 2030-09-28

Abstract

The utility model discloses an automatic water supply and cut-off device that adds of breathing machine, including humidifying jar, buffer tank, connecting pipe and on-off mechanism, on-off mechanism includes the guiding axle, and the guiding axle is fixed to be set up in the buffer chamber, the vertical setting of guiding axle, and the cover is equipped with a floater on the guiding axle, and when the floater was in the first position, the piston laminated in the inner wall of water inlet to make the water inlet be in the closed condition. The utility model provides a technical scheme's beneficial effect is: communicate humidifying tank and buffer tank through the connecting pipe to set up floater and piston in the buffer tank, after the liquid level in the buffer tank rises to the settlement height, the floater rises, thereby the water inlet is plugged up to the drive piston, when the liquid level in the buffer tank descends, the floater descends, thereby make piston and water inlet separation, thereby continue to add water in the buffer tank, consequently can make the liquid level in the buffer tank remain stable, and then can make the liquid level in the humidifying tank remain stable according to the linker principle, realize adding water to the humidifying tank is automatic in.

Description

Automatic water adding and cutting-off device of breathing machine

Technical Field

The utility model belongs to the technical field of the medical instrument technique and specifically relates to an automatic water supply and cut-off device that adds of breathing machine is related to.

Background

At present, most breathing machine all uses the humidifier to realize carrying out the function of humidification that heats to inhaling gas, in order to guarantee the humidity of inhaling gas, the humidifying jar need constantly add distilled water, causes to use inconveniently, simultaneously, if operating personnel forgets in time to add distilled water, then can reduce the humidity of the gaseous of breathing machine output, can lead to breathing machine equipment to damage because of equipment dry combustion method even.

SUMMERY OF THE UTILITY MODEL

In view of this, it is necessary to provide an automatic water adding and cutting device for a ventilator, so as to solve the technical problems that the conventional humidification tank of the ventilator needs to be added with distilled water manually and continuously, so that the use is inconvenient, and the ventilator cannot be used normally when forgetting to add distilled water timely.

An automatic water adding and breaking device of a breathing machine comprises:

the humidifying tank is provided with a humidifying cavity, a heater is arranged in the humidifying cavity, and an air inlet and an air outlet which are communicated with the humidifying cavity are formed in the humidifying tank;

the buffer tank is provided with a buffer cavity, and the upper end surface of the buffer tank is provided with a water inlet communicated with the buffer cavity;

one end of the connecting pipe is communicated with the humidifying cavity, the other end of the connecting pipe is communicated with the buffering cavity, and a one-way valve is arranged on the connecting pipe;

the switch mechanism comprises a guide shaft, the guide shaft is fixedly arranged in the buffer cavity and is vertically arranged, a floating ball is sleeved on the guide shaft and is in sliding connection with the guide shaft, a piston is fixedly connected to the floating ball and faces the water inlet, when the floating ball is located at a first position, the piston is attached to the inner wall of the water inlet, so that the water inlet is in a closed state, and when the floating ball is located at a second position, the piston is separated from the inner wall of the water inlet, so that the water inlet is in an open state.

Furthermore, the number of the guide shafts and the number of the floating balls are two and are in one-to-one correspondence, the two guide shafts are both vertically arranged, and the two floating balls are respectively connected with the corresponding guide shafts in a sliding manner; the switch mechanism further comprises a first connecting strip and a second connecting strip, two ends of the first connecting strip are fixedly connected with the two floating balls respectively, the upper end of the second connecting strip is fixedly connected with the piston, and the lower end of the second connecting strip is fixedly connected with the first connecting strip.

Furthermore, the lower end of the guide shaft is provided with a limiting block.

Further, the buffer tank comprises a buffer tank body and a cover plate, the cover plate is used for covering the buffer tank body, the water inlet is formed in the cover plate, and the guide shaft is fixed on the lower end face of the cover plate.

Furthermore, the cover plate is provided with a vent hole.

Furthermore, a water valve is arranged on the connecting pipe.

Further, the automatic water adding and water cutting device of the breathing machine further comprises a water storage tank and a water inlet pipe, wherein the water storage tank is provided with a water storage cavity, the upper end of the water inlet pipe is communicated with the water storage cavity, and the lower end of the water inlet pipe is communicated with the buffer cavity.

Compared with the prior art, the utility model provides a technical scheme's beneficial effect is: communicate humidifying tank and buffer tank through the connecting pipe to set up floater and piston in the buffer tank, after the liquid level in the buffer tank rises to the settlement height, the floater rises, thereby the water inlet is plugged up to the drive piston, when the liquid level in the buffer tank descends, the floater descends, thereby make piston and water inlet separation, thereby continue to add water in the buffer tank, consequently can make the liquid level in the buffer tank remain stable, and then can make the liquid level in the humidifying tank remain stable according to the linker principle, realize adding water to the humidifying tank is automatic in.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of an automatic water adding and cutting device of a breathing machine provided by the present invention;

FIG. 2 is a schematic view of the cover and switch mechanism of FIG. 1;

in the figure: 1-a humidification tank, 2-a buffer tank, 3-a connecting pipe, 4-a switch mechanism, 5-a water storage tank, 6-a water inlet pipe, 11-a heater, 12-an air inlet, 13-an air outlet, 14-a hose, 21-a buffer tank body, 22-a cover plate, 221-a water inlet, 222-an air vent, 31-a one-way valve, 32-a water valve, 41-a guide shaft, 411-a limiting block, 42-a floating ball, 43-a piston, 44-a first connecting strip and 45-a second connecting strip.

Detailed Description

The following detailed description of the preferred embodiments of the invention, which is to be read in connection with the accompanying drawings, forms a part of this application, and together with the embodiments of the invention, serve to explain the principles of the invention and not to limit its scope.

Referring to fig. 1, the utility model provides an automatic water feeding and cutting device for a respirator, which comprises a humidifying tank 1, a buffer tank 2, a connecting pipe 3 and a switch mechanism 4.

Referring to fig. 1, the humidification tank 1 has a humidification chamber, a heater 11 is disposed in the humidification chamber, and the humidification tank 1 is provided with an air inlet 12 and an air outlet 13 communicated with the humidification chamber. When the humidifying device is used, the air outlet 13 is communicated with an output tube of a respirator through a hose 14, the air inlet 12 is connected with an air inlet pump (not shown), the air inlet pump blows air into the humidifying cavity, and the air is humidified and then is discharged into the output tube of the respirator through the air outlet 13, so that the function of heating and humidifying the inhaled air is achieved.

Referring to fig. 1, the buffer tank 2 has a buffer cavity, and a water inlet 221 communicated with the buffer cavity is formed on an upper end surface of the buffer tank 2.

Referring to fig. 1, one end of the connecting pipe 3 is communicated with the humidification chamber, the other end of the connecting pipe 3 is communicated with the buffer chamber, and the connecting pipe 3 is provided with a one-way valve 31, so that hot water in the humidification tank 1 is prevented from flowing into the buffer tank 2.

Referring to fig. 1 and 2, the switch mechanism 4 includes a guide shaft 41, the guide shaft 41 is fixedly disposed in the buffer cavity, the guide shaft 41 is vertically disposed, a floating ball 42 is sleeved on the guide shaft 41, the floating ball 42 is slidably connected to the guide shaft 41, a piston 43 is fixedly connected to the floating ball 42, the piston 43 is disposed toward the water inlet 221, when the floating ball 42 is at a first position, the piston 43 is attached to an inner wall of the water inlet 221, so that the water inlet 221 is in a closed state, and when the floating ball 42 is at a second position, the piston 43 is separated from the inner wall of the water inlet 221, so that the water inlet 221 is in an open state.

Preferably, referring to fig. 1 and 2, the number of the guide shafts 41 and the floating balls 42 is two and corresponds to one another, the two guide shafts 41 are both vertically arranged, and the two floating balls 42 are respectively connected with the corresponding guide shafts 41 in a sliding manner. The switch mechanism 4 further includes a first connecting bar 44 and a second connecting bar 45, two ends of the first connecting bar 44 are respectively fixedly connected to the two floating balls 42, an upper end of the second connecting bar 45 is fixedly connected to the piston 43, and a lower end of the second connecting bar 45 is fixedly connected to the first connecting bar 44. Through setting up two floater 42, can improve this device's stability.

Preferably, referring to fig. 1 and 2, a stopper 411 is disposed at a lower end of the guide shaft 41, so as to prevent the floating ball 42 from being separated from the guide shaft 41.

Further, referring to fig. 1 and fig. 2, the buffer tank 2 includes a buffer tank body 21 and a cover plate 22, the cover plate 22 is used for covering the buffer tank body 21, the water inlet 221 is disposed on the cover plate 22, and the guide shaft 41 is fixed on a lower end surface of the cover plate 22. By mounting the guide shaft 41 on the cover plate 22, when the float ball 42 and the guide shaft 41 in the surge tank 2 need to be cleaned or repaired, only the cover plate 22 needs to be taken out.

Preferably, referring to fig. 1 and 2, the cover plate 22 is provided with a vent hole 222, and the vent hole 222 is used for keeping the buffer chamber communicated with air all the time, so that water in the buffer chamber can enter the humidification chamber through the connection pipe 3.

Preferably, referring to fig. 1, a water valve 32 is further disposed on the connection pipe 3, so that the connection pipe 3 can be cut off when necessary.

Further, please refer to fig. 1, the automatic water feeding and cutting device of the breathing machine further comprises a water storage tank 5 and a water inlet pipe 6, wherein the water storage tank 5 is provided with a water storage cavity, the upper end of the water inlet pipe 6 is communicated with the water storage cavity, and the lower end of the water inlet pipe 6 is communicated with the buffer cavity.

For better understanding of the present invention, the following will be described in detail with reference to fig. 1 and 2 to illustrate the working process of the automatic water adding and cutting device of a breathing machine provided by the present invention: when the humidifier is used, sufficient distilled water is added into the water storage tank 5, the distilled water in the water storage tank 5 enters the buffer tank 2 through the water inlet pipe 6 and then enters the humidification tank 1 through the connecting pipe 3, the liquid level in the buffer tank 2 rises along with the continuous entering of the distilled water into the buffer tank 2, so that the floating ball 42 rises, the floating ball 42 drives the piston 43 to rise through the first connecting strip 44 and the second connecting strip 45, when the floating ball 42 rises to the first position, the piston 43 is attached to the inner wall of the water inlet 221, so that the water inlet 221 is in a closed state, the distilled water in the water storage tank 5 stops flowing into the buffer tank 2, at the moment, according to the principle of a communicating vessel, the liquid level of the distilled water in the humidification tank 1 is equal to the liquid level in the buffer tank 2, the heater 11 is started, the distilled water in the humidification tank 1 is evaporated, and the generated steam is discharged into an output pipe of a breathing machine through the air outlet 13 and the hose 14, therefore, the function of heating and humidifying the sucked gas is realized, the liquid level in the humidification tank 1 is reduced along with the reduction of the water evaporated in the humidification tank 1, the liquid level in the buffer tank 2 is reduced, the floating ball 42 is lowered, the piston 43 is separated from the inner wall of the water inlet 221, the water inlet 221 is in an open state, and the distilled water in the water storage tank 5 continuously flows into the buffer tank 2 until the floating ball 42 reaches the first position. The water is added into the humidifying tank 1 automatically in such a way of circulating and reciprocating.

To sum up, the utility model discloses a connecting pipe 3 communicates humidifying tank 1 with buffer tank 2, and set up floater 42 and piston 43 in buffer tank 2, after the liquid level in buffer tank 2 rises to the settlement height, floater 42 rises, thereby it plugs up water inlet 221 to drive piston 43, when the liquid level in buffer tank 2 descends, floater 42 descends, thereby make piston 43 and water inlet 221 separate, thereby continue to add water in the buffer tank 2, consequently, can make the liquid level in the buffer tank 2 remain stable, and then can make the liquid level in humidifying tank 1 remain stable according to the linker principle, realize adding water to humidifying tank 1 is interior automatic.

The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and the changes or substitutions that can be easily conceived within the technical scope of the present invention should be covered within the scope of the present invention.

Claims

1. The utility model provides an automatic device that cuts off water supply that adds of breathing machine which characterized in that includes:

the switch mechanism comprises a guide shaft, the guide shaft is fixedly arranged in the buffer cavity, the guide shaft is vertically arranged, a floating ball is sleeved on the guide shaft and is in sliding connection with the guide shaft, a piston is fixedly connected to the floating ball and faces the water inlet, when the floating ball is located at a first position, the piston is attached to the inner wall of the water inlet so that the water inlet is in a closed state, and when the floating ball is located at a second position, the piston is separated from the inner wall of the water inlet so that the water inlet is in an open state;

the water storage tank is provided with a water storage cavity and is used for adding sufficient distilled water;

the upper end of the water inlet pipe is communicated with the water storage cavity, and the lower end of the water inlet pipe is communicated with the buffer cavity.

2. The automatic water adding and cutting-off device of the breathing machine as claimed in claim 1, wherein the number of the guide shafts and the floating balls are two and are in one-to-one correspondence, the two guide shafts are vertically arranged, and the two floating balls are respectively connected with the corresponding guide shafts in a sliding manner;

the switch mechanism further comprises a first connecting strip and a second connecting strip, two ends of the first connecting strip are fixedly connected with the two floating balls respectively, the upper end of the second connecting strip is fixedly connected with the piston, and the lower end of the second connecting strip is fixedly connected with the first connecting strip.

3. The automatic water adding and breaking device of the breathing machine as claimed in claim 1, wherein a limiting block is arranged at the lower end of the guide shaft.

4. The automatic water adding and breaking device of the breathing machine as claimed in claim 1, wherein the buffer tank comprises a buffer tank body and a cover plate, the cover plate is used for covering the buffer tank body, the water inlet is arranged on the cover plate, and the guide shaft is fixed on the lower end face of the cover plate.

5. The automatic water adding and cutting device of a respirator as claimed in claim 4, wherein the cover plate is provided with a vent hole.

6. The automatic water adding and breaking device of the breathing machine as claimed in claim 1, wherein a water valve is further provided on the connection pipe.