A water collecting cup for ventilator pipeline

Abstract

The present invention discloses a ventilator pipeline water collecting cup, which relates to the technical field of medical devices, and includes a water cup body, a liquid inlet is arranged on the top of the water cup body, a partition plate is arranged inside, a connecting hole connecting an upper water collecting chamber and a lower water collecting chamber is arranged on the partition plate, a plug body and a float are arranged in the upper water collecting chamber, a blocking structure is arranged above the float, the height of the float changes with the change of the liquid level in the upper water collecting chamber, and the blocking structure can be controlled to block the liquid inlet by lifting the float, and a first alarm structure and a second alarm structure are arranged on the side wall of the water cup body, the first alarm structure corresponds to the liquid level when the plug body is about to open the connecting hole, and the second alarm structure corresponds to the liquid level when the float is about to trigger the blocking structure. The present invention can realize two-level protection of draining the condensed water in the upper water collecting chamber to the lower water collecting chamber and blocking the liquid inlet of the condensed water, and on this basis, remind medical staff twice to perform the dumping operation to ensure the safety of the water collecting cup application.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, and in particular to a water collecting cup for a ventilator pipeline. Background Art

[0002] Mechanical ventilation is an indispensable and important treatment method for rescuing patients in intensive care units. However, during mechanical ventilation, a large amount of condensed water is often generated in the breathing circuit due to the heating and humidification of the inhaled gas. If the condensed water is not handled, it will affect the normal operation of the ventilator. To solve the problem of condensed water, the current method is to set a water collection cup in the middle of the inlet and outlet pipes of the breathing circuit to collect the condensed water in the pipeline.

[0003] However, the ventilator will continuously produce condensed water during long-term use, and the capacity of the water collection cup is limited. The nurse needs to continuously observe the amount of water in the water collection cup. When the water level reaches a certain height, it needs to be dumped in time. If the nurse fails to dump the condensed water in the water collection cup in time, it is very easy to cause the condensed water to flow back into the patient's airway, breathing tube or heated humidification device, causing the patient to aspirate, contaminate the heated humidification water, cause or aggravate the patient's lung infection, and affect the function of the ventilator.

[0004] The Chinese patent with the authorization announcement number CN 213374509 U discloses a water collection cup for a ventilator with an anti-backflow function, including a water collection cup body, the water collection cup body is a cylindrical tube structure, the top surface of the water collection cup body is threadedly connected to a top cover, and the top surface of the top cover is provided with a Y-shaped drainage pipe connected to the ventilator, and the bottom surface of the Y-shaped drainage pipe is provided with a connecting tube, the connecting tube is a disc structure, and the diameter of the connecting tube is smaller than the diameter of the top cover, the connecting tube longitudinally penetrates into the top cover, and a cavity is provided on one side of the connecting tube facing the top cover, and an anti-backflow disc is horizontally penetrated and connected between the inner walls of the cavity of the connecting tube through a fixed axis, and the anti-backflow disc is an elliptical disc structure. Although the water collection cup of this scheme has an anti-backflow function, it cannot make corresponding reminders according to the amount of water in the water collection cup, and medical staff still need to observe continuously, and it is also necessary to set up components such as a single-chip microcomputer, a solenoid valve, and a spare cup to avoid the situation where medical staff fail to replace the water collection cup in time.

[0005] The Chinese patent application publication number CN 104208780A discloses a water collection cup with an alarm device, including a water collection cup of a ventilator, a limit micro switch is installed in the upper part of the cup body of the water collection cup, the limit micro switch is encapsulated with an insulating waterproof material, the limit micro switch is connected to the alarm device of the ventilator, and a floating plate with large buoyancy is installed in the water collection cup. This scheme realizes the alarm by the floating plate triggering the limit micro switch as the water level rises, reminding the nurse to dump the accumulated water, but there is a time difference between the reminder and the nurse rushing to dump the water, and the nurse may not be able to dump the water in time due to being busy, and it is very likely that the aforementioned problem of condensed water not being able to be dumped in time will occur. Summary of the invention

[0006] The purpose of the present invention is to provide a ventilator pipeline water collecting cup to solve the problems existing in the above-mentioned prior art. The change of the floating body height is used to control whether the upper water collecting chamber and the lower water collecting chamber are connected and whether the sealing structure blocks the liquid inlet. At the same time, the first alarm structure and the second alarm structure are used to alarm the corresponding liquid level position, which can achieve two-level protection of draining the condensed water in the upper water collecting chamber to the lower water collecting chamber and blocking the liquid inlet of the condensed water. On this basis, medical staff are reminded twice to perform the dumping operation to ensure the safety of the water collecting cup application.

[0007] To achieve the above object, the present invention provides the following solutions:

[0008] The present invention provides a ventilator pipeline water collecting cup, comprising a water cup body, a top of the water cup body is provided with a liquid inlet connected to the breathing pipeline, the interior of the water cup body is provided with a partition plate for dividing the inner cavity of the water cup body into an upper water collecting chamber and a lower water collecting chamber, the partition plate is provided with a connecting hole connecting the upper water collecting chamber and the lower water collecting chamber, the upper water collecting chamber is provided with a plug body for controlling the opening and closing of the connecting hole and a floating body connected to the plug body through a traction rope, a blocking structure for opening and closing the liquid inlet is provided above the floating body, the height of the floating body changes with the change of the liquid level in the upper water collecting chamber, and the blocking structure can be controlled to block the liquid inlet by lifting the floating body, and a first alarm structure and a second alarm structure are provided on the side wall of the water cup body, the first alarm structure corresponds to the liquid level when the plug body is about to open the connecting hole, and the second alarm structure corresponds to the liquid level when the floating body is about to trigger the blocking structure.

[0009] Preferably, the blocking structure includes a self-closing valve installed in the breathing circuit and a support plate installed in the water cup body, the support plate is provided with a groove, a flexible body capable of controlling the closing of the self-closing valve is provided in the groove, the flexible body is filled with a flowing medium, and also includes a puncture structure, and when the float rises, the puncture structure can be lifted to puncture the flexible body.

[0010] Preferably, the outer diameter side of the support plate is fixedly connected to the inner diameter side of the water cup body, and the support plate is provided with a plurality of through holes for liquid circulation.

[0011] Preferably, the self-closing valve includes a valve seat plate fixed to the liquid outlet of the breathing circuit, a valve core plate located on the inner side of the valve seat plate, and a spring located on the outer side of the valve seat plate, a valve hole is provided on the valve seat plate, the valve core plate is connected to one end of a valve stem passing through the valve hole, the other end of the valve stem is connected to a baffle, the spring is sleeved on the valve stem, one end of the spring abuts against the valve seat plate, and the other end of the spring abuts against the baffle.

[0012] Preferably, the valve core plate is provided with a conical surface, and the valve hole is a conical hole matching the conical surface.

[0013] Preferably, it comprises a plurality of arc guide plates arranged in a ring, the plurality of arc guide plates enclosing a guide channel for the float and the plug body to move up and down, the top end of the arc guide plate being connected to the support plate, and the bottom end of the arc guide plate being connected to the partition plate.

[0014] Preferably, the acupuncture structure includes a steel needle and a pressure plate connected to the bottom of the steel needle, the pressure plate is used to fit the float and withstand the lifting force of the float, and the bottom of the groove is provided with a first needle hole through which the steel needle passes.

[0015] Preferably, it includes a limiting plate fixed on the arc-shaped guide plate, the limiting plate is provided with a second needle hole for the steel needle to pass through, the pressure plate is located at the lower side of the limiting plate, the steel needle located at the upper side of the limiting plate is provided with a flange, the diameter of the flange and the diameter of the pressure plate are both larger than the aperture of the second needle hole.

[0016] Preferably, the first alarm structure includes a first liquid level sensor and a light alarm electrically connected to the first liquid level sensor, and the second alarm structure includes a second liquid level sensor and a sound alarm electrically connected to the second liquid level sensor.

[0017] Preferably, a power source is included to provide electrical energy to the first alarm structure and the second alarm structure, and the power source is located at the bottom outside the water cup body.

[0018] Compared with the prior art, the present invention has achieved the following technical effects:

[0019] (1) The present invention uses the change of the height of the float to control whether the upper water collecting chamber and the lower water collecting chamber are connected and whether the blocking structure blocks the liquid inlet. At the same time, the first alarm structure and the second alarm structure are used to alarm the corresponding liquid level position, which can achieve two-level protection of draining the condensed water in the upper water collecting chamber to the lower water collecting chamber and blocking the liquid inlet of the condensed water. On this basis, the medical staff is reminded twice to perform the dumping operation, thereby ensuring the safety of the water collecting cup application;

[0020] (2) The present invention uses a flexible body filled with a flowing medium as a supporting structure of the self-closing valve, and punctures the flexible body through a needle-piercing structure to control the closing of the self-closing valve. The height change of the floating body can be cleverly used to control the closing action of the liquid inlet through a mechanical structure, thereby effectively preventing condensed water from flowing back into the breathing tube, and has high reliability;

[0021] (3) The self-closing valve of the present invention is installed at the liquid outlet of the breathing tube. Under the action of the spring, the valve core plate can be sealed against the valve hole on the valve seat plate. That is, when the water cup body is removed to dump the condensed water, the liquid outlet of the breathing tube can be blocked to prevent the condensed water from flowing out and causing pollution. After the water cup body is installed, the valve core plate is pushed open by pushing the baffle plate upward with the flexible body on the support plate, so that the liquid outlet of the breathing tube is connected with the liquid inlet of the water cup body, and the condensed water flows smoothly into the water cup body. The operation is simple and convenient.

[0022] (4) The present invention utilizes an arc-shaped guide plate to enclose a guide channel, which can confine the float and the plug body within the guide channel, ensuring that the float and the plug body can move along a set route, that is, the connecting hole on the partition plate can be opened and the liquid inlet of the water cup body can be closed smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 This is a schematic diagram of the plug body of the present invention when it is about to be separated from the communicating hole;

[0025] Figure 2 It is a schematic diagram of the self-closing valve resetting after the needle puncture structure of the present invention punctures the flexible body;

[0026] Figure 3 This is a schematic diagram of the explosion structure of the internal structure of the present invention;

[0027] Figure 4 It is a schematic diagram of the structure of the breathing tube and the self-closing valve of the present invention;

[0028] Figure 5 It is a schematic diagram of the acupuncture structure and the floating plug structure of the present invention;

[0029] Among them, 1. water cup body; 11. cup body; 12. cover body; 2. breathing tube; 3. self-closing valve; 31. valve seat plate; 32. valve core plate; 33. valve stem; 34. spring; 35. baffle; 4. support plate; 41. groove; 411. first needle hole; 42. water hole; 5. needle puncture structure; 51. limit plate; 511. second needle hole; 52. steel needle; 53. flange; 54. pressure plate; 6. float; 61. traction rope; 62. plug body; 63. partition plate; 631. connecting hole; 64. arc guide plate; 7. first alarm structure; 8. second alarm structure; 9. power supply. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] The purpose of the present invention is to provide a ventilator pipeline water collecting cup to solve the problems existing in the prior art. The change in the height of the float is used to control whether the upper water collecting chamber and the lower water collecting chamber are connected and whether the sealing structure blocks the liquid inlet. At the same time, the first alarm structure and the second alarm structure are used to alarm the corresponding liquid level position, which can achieve two-level protection of draining the condensed water in the upper water collecting chamber to the lower water collecting chamber and blocking the liquid inlet of the condensed water. On this basis, medical staff are reminded twice to perform the dumping operation to ensure the safety of the water collecting cup application.

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] like Figures 1 to 5As shown, the present invention provides a ventilator pipeline water collection cup, including a water cup body 1, the top of the water cup body 1 is provided with a liquid inlet connected to the breathing pipeline 2, to facilitate the installation of the internal components of the water cup body 1, the water cup body 1 may include a cup body 11 and a cover body 12 threadedly connected to the top of the cup body 11, and the liquid inlet is arranged in the middle of the cover body 12. The interior of the water cup body 1 is provided with a partition plate 63 that divides its inner cavity into an upper water collection chamber and a lower water collection chamber, and the partition plate 63 is provided with a connecting hole 631 that connects the upper water collection chamber and the lower water collection chamber, and the connecting hole 631 can be arranged in the middle of the partition plate 63 and coaxial with the liquid inlet. The upper water collecting chamber is provided with a plug body 62 for controlling the opening and closing of the connecting hole 631 and a float body 6 connected to the plug body 62 through a traction rope 61. As the condensed water in the water cup body 1 is collected, the liquid level gradually rises, and the float body 6 is able to rise with the rise of the liquid level under the buoyancy of the condensed water in the water cup body 1. At the same time, the float body 6 provides a certain pulling force to the plug body 62 through the traction rope 61, and the plug body 62 can be pulled out when the buoyancy of the float body 6 reaches a sufficient level. The bottom of the plug body 62 has a conical structure, which is convenient for entering the connecting hole 631 to achieve blocking, and is also convenient for pulling out to remove the blockage. A blocking structure for opening and closing the liquid inlet is arranged above the float 6. In fact, the liquid inlet can be made into a shape that matches the top structure of the float 6, and the float 6 itself can be used to block the liquid inlet, or a blocking plug can be independently arranged, and the floating body 6 is used to lift the blocking plug to block the liquid inlet. Although the above structure is simple, there is a situation where the floating body 6 shakes with the shaking of the water cup body 1 and cannot achieve tight sealing. Therefore, the preferred scheme of the blocking structure is to use a self-closing valve 3, and rely on the mechanical structure of the self-closing valve 3 to achieve tight blocking. The height of the float 6 changes with the change of the liquid level in the upper water collecting chamber. The lifting of the float 6 can trigger the action of the blocking structure (including the self-closing valve 3, the blocking plug or the structure of the floating body 6 itself), thereby controlling the blocking structure to block the liquid inlet. The side wall of the water cup body 1 is provided with a first alarm structure 7 and a second alarm structure 8. The first alarm structure 7 corresponds to the liquid level when the plug body 62 is about to open the connecting hole 631. At this time, the first alarm structure 7 can detect the liquid level and issue an audible alarm and / or a light alarm. The second alarm structure 8 corresponds to the liquid level when the float 6 is about to trigger the blocking structure. At this time, the second alarm structure 8 can detect the liquid level and issue an audible alarm and / or a light alarm. The present invention uses the change in the height of the float 6 to control whether the upper water collection chamber and the lower water collection chamber are connected and whether the blocking structure blocks the liquid inlet. At the same time, the first alarm structure 7 and the second alarm structure 8 are used to alarm the corresponding liquid level position, which can realize two-level protection such as draining the condensed water in the upper water collection chamber to the lower water collection chamber (first level protection) and blocking the liquid inlet of the condensed water (second level protection). On this basis, the medical staff is reminded twice to perform the dumping operation to ensure the safety of the water collection cup application.

[0034] The blocking structure may include a self-closing valve 3 installed in the breathing tube 2 and a support plate 4 installed in the water cup body 1. The support plate 4 is provided with a groove 41. A flexible body capable of controlling the closing of the self-closing valve 3 is provided in the groove 41. It should be noted that the flexible body may be a sac-like structure filled with a flowing medium (which may be gas or liquid). The flexible body will be constrained in the groove 41 before being punctured. When in contact with the self-closing valve 3, it can form an effective support for its baffle 35, thereby pushing the valve core plate 32 of the self-closing valve 3 to move away from the valve seat plate 31. It also includes a puncture structure 5. When the float 6 rises, it can lift the puncture structure 5 to puncture the flexible body. At this time, the flowing medium filled in the flexible body flows out along the punctured gap, and the supporting capacity of the flexible body for the self-closing valve 3 gradually decreases. The baffle 35 of the self-closing valve 3 gradually decreases under the action of the spring 34. Finally, the valve core plate 32 is blocked on the valve seat plate 31 to achieve blocking of the liquid inlet. It can be seen that the present invention utilizes a flexible body filled with a flowing medium as a supporting structure for the self-closing valve 3, and controls the closing of the self-closing valve 3 by piercing the flexible body through the puncture structure 5. The height change of the float 6 can be cleverly utilized to control the closing action of the liquid inlet through a mechanical structure, thereby effectively preventing condensed water from flowing back into the breathing tube 2, and has high reliability.

[0035] The outer diameter side of the support plate 4 is fixedly connected to the inner diameter side of the water cup body 1 (i.e., the cup body 11), and can be supported by the radially inward protrusion of the cup body 11 during connection, and fixed by means of glue. The support plate 4 is provided with a plurality of water holes 42 for liquid circulation, and the water holes 42 can be evenly distributed along a circular track, so that the condensed water entering from the liquid inlet can smoothly enter the upper water collecting chamber.

[0036] The self-closing valve 3 may include a valve seat plate 31 fixed to the liquid outlet of the breathing tube 2, a valve core plate 32 located on the inner side of the valve seat plate 31 (inside the breathing tube 2), and a spring 34 located on the outer side of the valve seat plate 31 (outside the breathing tube 2). A valve hole is provided on the valve seat plate 31, and the valve hole serves as the main channel for condensed water to flow from the breathing tube 2 into the water cup body 1. The valve stem 33 passes through the valve hole, and the valve core plate 32 and the baffle plate 35 are respectively connected to the two ends of the valve stem 33. The spring 34 is sleeved on the valve stem 33, one end of the spring 34 abuts on the valve seat plate 31, and the other end of the spring 34 abuts on the baffle plate 35. Under normal conditions, the spring 34 applies a force to push the baffle plate 35 away from the valve seat plate 31, thereby pressing the valve core plate 32 against the valve hole of the valve seat plate 31 to seal the valve hole. When the baffle plate 35 is subjected to external force, it can offset the elastic force of the spring 34 and apply force to the baffle plate 35 in the direction close to the valve seat plate 31. At this time, the valve core plate 32 is away from the valve seat plate 31, thereby opening the valve hole. In addition, it should be noted that by installing the self-closing valve 3 at the liquid outlet of the breathing tube 2, under the action of the spring 34, the valve core plate 32 can be blocked on the valve hole on the valve seat plate 31, that is, when the water cup body 1 is removed to dump the condensed water, the liquid outlet of the breathing tube 2 can be blocked to prevent the condensed water from flowing out and causing pollution. After installing the water cup body 1, the flexible body on the support plate 4 is used to push the baffle plate 35 to push the valve core plate 32 open, so that the liquid outlet of the breathing tube 2 is connected to the liquid inlet of the water cup body 1, and the condensed water flows smoothly into the water cup body 1, which is simple and convenient to operate. In another embodiment, the baffle plate 35 can be set as a piston, and the groove 41 can be used as a piston cavity for the operation of the piston. The piston cavity is filled with a flowing medium. The first pinhole 411 at the bottom of the groove 41 is sealed by a diaphragm. The above structure can replace the setting of the flexible body, and the puncture structure 5 is used to pierce the diaphragm to achieve the flow of the flowing medium in the groove 41, thereby removing the restriction on the piston (baffle plate 35).

[0037] Furthermore, the valve core plate 32 can be provided with a conical surface, and the valve hole is a conical hole matching the conical surface. When the valve core plate 32 moves close to the valve seat plate 31 under the action of the spring 34, the valve core plate 32 can smoothly enter the valve hole by utilizing the cooperation of the conical surface and the conical hole to form a guiding effect.

[0038] It can include a plurality of arc-shaped guide plates 64, at least three of which are evenly distributed along the annular track, and the plurality of arc-shaped guide plates 64 surround the float 6 and the plug 62 therein, forming a guide channel for the float 6 and the plug 62 to move up and down. The arc-shaped guide plates 64 enclose the guide channel, so that the float 6 and the plug 62 can move up and down according to the set route without deflection and dislocation, that is, the opening of the connecting hole 631 on the partition plate 63 and the closing of the liquid inlet of the water cup body 1 can be smoothly realized. In the specific setting, the top end of the arc-shaped guide plate 64 can be connected to the support plate 4 (corresponding to the position of the groove 41), and the bottom end of the arc-shaped guide plate 64 can be connected to the partition plate 63, so that the support plate 4, the arc-shaped guide plate 64 and the partition plate 63 form an I-shaped frame structure, and are connected to the water cup body 1 to form an overall stable structure.

[0039] The puncture structure 5 may include a steel needle 52 and a pressure plate 54 connected to the bottom of the steel needle 52. The pressure plate 54 is used to fit the float 6 and bear the lifting force of the float 6. Since the area of ​​the pressure plate 54 is much larger than the area of ​​the tip of the steel needle 52, the lifting force of the float 6 can be concentrated to the tip of the steel needle 52, so that the flexible body or the membrane can be punctured more easily. A first needle hole 411 is provided at the bottom of the groove 41, which can smoothly pass through the first needle hole 411 and puncture the flexible body or the membrane when the steel needle 52 moves, and the flow medium in the flexible body (or the groove 41) can flow out of the groove 41 along the first needle hole 411.

[0040] Before the float 6 is lifted to the pressure plate 54, the position of the steel needle 52 can be supported by the limit plate 51. Specifically, the limit plate 51 can be fixed on the arc-shaped guide plate 64, and the limit plate 51 is provided with a second needle hole 511 for the steel needle 52 to penetrate. The pressure plate 54 is located at the lower side of the limit plate 51, and the steel needle 52 located at the upper side of the limit plate 51 is also provided with a flange 53, and the diameter of the flange 53 and the diameter of the pressure plate 54 are both larger than the aperture of the second needle hole 511, so that the steel needle 52 can be inserted into the second needle hole 511 and move up and down within a certain spacing. The flange 53 can also be designed into a conical structure with the second needle hole 511 to facilitate the reset of the flange 53. In addition, another spring can also be provided between the pressure plate 54 and the limit plate 51 to ensure the initial position of the steel needle 52, so as to avoid the steel needle 52 being in the groove 41 when the float 6 has not reached the position and affecting the flexible body or the diaphragm. Furthermore, there is a certain distance between the limit plate 51 and the bottom surface of the groove 41. The limit plate 51 can also limit the rising position of the float 6. That is, when the pressure plate 54 is lifted to the limit plate 51, the steel needle 52 no longer rises, and the setting of the flange 53 will not cause the first needle hole 411 to be blocked, thereby ensuring the smooth emptying of the flowing medium in the groove 41.

[0041] The first alarm structure 7 includes a first liquid level sensor and a light alarm electrically connected to the first liquid level sensor, that is, when the first stage alarm is triggered, only a light signal can be emitted for alarm, so as to remind medical staff to promptly handle the condensed water in the water cup body 1 without causing noise pollution. The second alarm structure 8 includes a second liquid level sensor and a sound alarm electrically connected to the second liquid level sensor, that is, when the second stage alarm is triggered, a sound signal can be emitted for alarm, so as to remind medical staff to pay attention to the condensed water in the water cup body 1 again.

[0042] Furthermore, it includes a power supply 9 for providing electrical energy to the first alarm structure 7 and the second alarm structure 8, and a corresponding control module. The power supply 9 and the control module can be located at the bottom outside the water cup body 1. This arrangement can lower the center of gravity of the water collecting cup, thereby further ensuring the stability of the entire water collecting cup when it is placed on a desktop or suspended in the air.

[0043] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A water collecting cup for a ventilator pipeline, characterized in that: The invention comprises a water cup body, wherein the top of the water cup body is provided with a liquid inlet connected to a breathing circuit, the interior of the water cup body is provided with a partition plate for dividing the inner cavity of the water cup body into an upper water collecting chamber and a lower water collecting chamber, the partition plate is provided with a connecting hole connecting the upper water collecting chamber and the lower water collecting chamber, the upper water collecting chamber is provided with a plug body for controlling the opening and closing of the connecting hole and a floating body connected to the plug body through a traction rope, a blocking structure for opening and closing the liquid inlet is provided above the floating body, the height of the floating body changes with the change of the liquid level in the upper water collecting chamber, and the blocking structure can be controlled to block the liquid inlet by lifting the floating body, and a first alarm structure and a second alarm structure are provided on the side wall of the water cup body, the first alarm structure corresponds to the liquid level when the plug body is about to open the connecting hole, and the second alarm structure corresponds to the liquid level when the floating body is about to trigger the blocking structure; The blocking structure includes a self-closing valve installed in the breathing circuit and a support plate installed in the water cup body, the support plate is provided with a groove, a flexible body capable of controlling the closing of the self-closing valve is provided in the groove, the flexible body is filled with a flowing medium, and also includes a puncture structure, which can lift the puncture structure to puncture the flexible body when the floating body rises; the puncture structure includes a steel needle and a pressure plate connected to the bottom of the steel needle, the pressure plate is used to fit the floating body and bear the lifting force of the floating body, and the bottom of the groove is provided with a first needle hole through which the steel needle passes; The self-closing valve includes a valve seat plate fixed to the liquid outlet of the breathing tube, a valve core plate located on the inner side of the valve seat plate, and a spring located on the outer side of the valve seat plate. A valve hole is provided on the valve seat plate, the valve core plate is connected to one end of a valve stem passing through the valve hole, the other end of the valve stem is connected to a baffle plate, the spring is sleeved on the valve stem, one end of the spring abuts against the valve seat plate, and the other end of the spring abuts against the baffle plate.

2. The ventilator pipeline water collection cup according to claim 1, characterized in that: The outer diameter side of the support plate is fixedly connected to the inner diameter side of the water cup body, and a plurality of through holes for liquid circulation are arranged on the support plate.

3. The ventilator pipeline water collection cup according to claim 2, characterized in that: The valve core plate is provided with a tapered surface, and the valve hole is a tapered hole matching the tapered surface.

4. The ventilator pipeline water collection cup according to claim 1, characterized in that: It comprises a plurality of arc guide plates arranged in a ring, which surround a guide channel for the floating body and the plug body to move up and down, the top end of the arc guide plate is connected to the support plate, and the bottom end of the arc guide plate is connected to the partition plate.

5. The ventilator pipeline water collection cup according to claim 4, characterized in that: It includes a limiting plate fixed on the arc-shaped guide plate, the limiting plate is provided with a second needle hole for the steel needle to pass through, the pressure plate is located at the lower side of the limiting plate, the steel needle located at the upper side of the limiting plate is provided with a flange, the diameter of the flange and the diameter of the pressure plate are both larger than the aperture of the second needle hole.

6. The ventilator pipeline water collection cup according to claim 1, characterized in that: The first alarm structure includes a first liquid level sensor and a light alarm electrically connected to the first liquid level sensor, and the second alarm structure includes a second liquid level sensor and a sound alarm electrically connected to the second liquid level sensor.

7. The ventilator pipeline water collection cup according to claim 6, characterized in that: A power source is included to provide electrical energy to the first alarm structure and the second alarm structure, and the power source is located at the bottom outside the water cup body.

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