A water volume alarm device for a humidifying tank of a respirator

Abstract

The invention discloses a water volume alarm device for a humidifier tank of a ventilator, relates to the technical field of water volume alarm, solves the problem that a water volume monitoring structure directly contacts with liquid in a humidifier tank, which may affect the purity of the liquid in the humidifier tank during use and may affect human health. The invention comprises a base, and two symmetrically distributed non-contact liquid level sensors are mounted on the upper side of the base, and the non-contact liquid level sensors are movably fitted with the outer wall of the humidifier tank, and also comprises a supporting component for supporting the non-contact liquid level sensor. The invention installs the non-contact liquid level sensor on the outer side of the humidifier tank through the supporting component and the adjusting component, so that the water level in the humidifier tank can be detected in real time, and the liquid in the humidifier tank can be prevented from being contaminated, and the non-contact liquid level sensor is convenient for monitoring the water level in a disposable humidifier tank or humidifier tanks of different models, thereby effectively expanding the application scope of the water volume alarm device.

Description

Technical Field

[0001] The invention relates to the technical field of water volume alarm, in particular to a water volume alarm device for a humidifier tank of a respirator. Background Art

[0002] The humidifier is an important part of the ventilator. Its function is to heat and humidify the inhaled gas. Good heating and humidification can prevent and reduce secondary respiratory infections in patients with mechanical ventilation, 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 sputum crusts to form in the airway, and can reduce the viscosity of secretions and promote expectoration.

[0003] The existing Chinese patent CN216871385U discloses a water alarm for a humidifier tank for a ventilator. When the water in the tank is about to run out, the float moves downward with the water surface, and the round rod moves between the photoelectric transmitter and the photoelectric receiver. The photoelectric receiver cannot receive the signal, so the electrical signal is transmitted to the control mainboard in the columnar device compartment through the wire, and then the control mainboard controls the ring alarm and the ring color change prompt light to work, and promptly reminds the medical staff that the water in the humidifier tank is insufficient to avoid the water in the humidifier tank running out completely. However, during the use of the above device, the first strip plate, the second strip plate and the float are installed inside the tank body and directly contact the liquid in the tank body. Since the commonly used liquid in the humidifier tank of the ventilator is distilled water or sterile pure water, it can be seen that the liquid used in the humidifier tank of the ventilator has a high purity requirement, and the water monitoring structure in the above device directly contacts the liquid in the humidifier tank, which will affect the purity of the liquid in the humidifier tank during use, and may affect human health. Summary of the invention

[0004] The purpose of the present invention is to provide a water volume alarm device for a humidifier tank of a respirator to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A ventilator humidification tank water volume alarm device comprises a base, wherein two symmetrically distributed non-contact liquid level sensors are installed on the upper side of the base, and the non-contact liquid level sensors are movably fitted with the outer wall of the humidification tank, and further comprises a support component for supporting the non-contact liquid level sensor, wherein the support component is installed between the non-contact liquid level sensor and the base; an adjustment component for adjusting the distance between the two non-contact liquid level sensors, wherein the adjustment component is installed between the two support components and is located inside the base; a deceleration component for slowing down the moving speed of the support component, wherein the deceleration component is installed inside the base and is located on the lower side of the support component; and a drive component for driving the deceleration component to move downward, wherein the drive component is installed between the adjustment component and the deceleration component.

[0007] Preferably, the supporting assembly includes a clamping seat installed on the outside of the non-contact liquid level sensor, and two symmetrically distributed pin rods are fixedly installed on the side of the non-contact liquid level sensor away from the humidification tank, and the pin rod passes through the clamping seat, and a spring is movably sleeved on the outside of the pin rod, and the two ends of the spring are respectively movably abutted against the clamping seat and the non-contact liquid level sensor, and the spring is used to drive the non-contact liquid level sensor to fit the outer wall of the humidification tank, and two symmetrically distributed rubber strips are fixedly embedded on the side of the clamping seat close to the humidification tank, and the non-contact liquid level sensor is located between the two rubber strips.

[0008] Preferably, a support seat 1 is fixedly installed on the side of the clamping seat away from the humidification tank, the lower end of the support seat 1 is fixedly connected to a limiting plate, and the support seat 1 and the limiting plate are slidably connected to the base through a limiting straight groove, a spring 2 is fixedly installed on the side of the support seat 1 away from the clamping seat, and one end of the spring 2 away from the support seat 1 is fixedly connected to the base, a baffle is installed on the upper side of the spring 2, and the baffle is fixedly connected to the support seat 1, the connection method between the baffle and the base is a plug-in connection, and the baffle is used to prevent debris from falling into the limiting straight groove.

[0009] Preferably, the adjustment assembly includes an inclined connecting rod rotatably mounted on the upper end of the limit plate, the end of the inclined connecting rod away from the limit plate is hinged with a connecting seat, a hollow tube passes through the center of the connecting seat, a limiting ring is fixedly sleeved on the outer side of the hollow tube, the limiting ring is used to prevent the hollow tube from detaching from the connecting seat, and the hollow tube is rotatably connected to the connecting seat via the limiting ring.

[0010] Preferably, a locking assembly is installed inside the base corresponding to the outer side of the adjusting assembly, and the locking assembly includes two symmetrically distributed pin blocks, and the front end of the pin block is provided with a beveled edge portion, and the pin block is movably connected to the connecting seat through a rectangular embedding groove, and the lower ends of the two pin blocks are fixedly connected with a connecting plate 1, and the pin block is inserted into the rectangular embedding groove for positioning the connecting seat, and the lower end of the connecting plate 1 is fixedly installed with two symmetrically distributed V-shaped spring pieces.

[0011] Preferably, one end of the V-shaped spring piece away from the connecting plate 1 is fixedly connected to the base, and the V-shaped spring piece is used to drive the connecting plate 1 to move upward. Two symmetrically distributed pressure rods are fixedly embedded in the upper end of the connecting plate 1, and the two pin blocks are located between the two pressure rods. The pressure rod passes through the base, and the upper end of the pressure rod is fixedly connected to a pressure block.

[0012] Preferably, a plurality of racks are provided at the lower end of the limit plate, and the deceleration assembly includes an articulated seat installed on the lower side of the racks, a cam is installed on the inner side of the articulated seat, and the cam is rotatably connected to the articulated seat through a connecting shaft, a friction pad is fixedly sleeved on the outer side of the cam, and the connection between the friction pad and the plurality of racks is a sliding contact, and the friction pad contacts and rubs with the plurality of racks, which can slow down the movement speed of the limit plate.

[0013] Preferably, a limited rotation groove is provided in the articulated seat corresponding to the location where the cam is installed, and two symmetrically distributed coil springs are fixedly sleeved on the outer side of the connecting shaft, the coil springs are used to drive the cam to rotate and reset, and the outer end of the coil spring is fixedly connected to the articulated seat, and the lower end of the articulated seat is fixedly connected to a connecting plate 2, and the lower end of the connecting plate 2 is fixedly installed with two symmetrically distributed springs 3.

[0014] Preferably, the driving assembly includes a spline rod which is pluggably connected to the hollow tube, a push rod is fixedly mounted on the outer side of the spline rod, and the push rod is located at the upper center of the connecting plate 2, a hemispherical portion 1 is provided at one end of the push rod away from the spline rod, the push rod is in sliding contact with the connecting plate 2 through the hemispherical portion 1, and a positioning assembly is installed at one end of the spline rod away from the hollow tube.

[0015] Preferably, the positioning assembly includes a connecting column fixedly connected to the spline rod, and one end of the connecting column away from the spline rod is fixedly connected to a limiting plate, the outer sides of the connecting column and the limiting plate are movably sleeved with a support seat 2, and the connecting column is rotatably connected to the support seat 2 through the limiting plate, and the support seat 2 is fixedly embedded with a plurality of sleeves distributed equidistantly around the circumference, and the sleeve is movably embedded with a pin rod 2 at one end close to the connecting column, and a hemispherical portion 2 is provided at one end of the pin rod 2 close to the connecting column, and a gasket is fixedly connected to one end of the pin rod 2 away from the connecting column, and a spring 4 is movably abutted on the side of the gasket away from the pin rod 2, and a plurality of hemispherical grooves distributed equidistantly around the circumference are provided on the outer side of the connecting column, and the hemispherical portion 2 is movably clamped with the connecting column through the hemispherical groove, and the hemispherical portion 2 is embedded in the hemispherical groove to position the spline rod and the push rod.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention installs a non-contact liquid level sensor on the outside of a humidification tank through a supporting component and an adjusting component, so as to monitor the water level in the humidification tank in real time and prevent the liquid in the humidification tank from being contaminated. In addition, the adjusting component can adjust the distance between the two non-contact liquid level sensors through the supporting component, thereby facilitating the non-contact liquid level sensor to monitor the water level in a disposable humidification tank or humidification tanks of different models, thereby effectively expanding the scope of use of the water volume alarm device.

[0018] 2. The present invention installs a deceleration component. When the two clamping seats are close to each other to clamp the humidification tank, the friction pad in the deceleration component presses against the rack and frictionally contacts with multiple racks during the movement of the limit plate, which can effectively slow down the movement and locking of the limit plate and the clamping seat, thereby preventing the non-contact liquid level sensor from directly hitting the humidification tank and preventing the non-contact liquid level sensor from being damaged by the impact. In addition, during the operation of the humidification tank, the cam can lock the position of the clamping seat through the rack, which can prevent the humidification tank from shaking during operation, thereby effectively enhancing the accuracy of water level monitoring by the non-contact liquid level sensor.

[0019] 3. The present invention installs a driving assembly and a positioning assembly. When the spline rod in the driving assembly is rotated, the push rod pushes against the second connecting plate to move downward, which is conducive to moving the reduction assembly downward away from the rack, thereby avoiding obstruction of the reduction assembly when the spacing between the two clamping seats is changed by adjusting the assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an overall schematic diagram of the present invention;

[0021] Figure 2 It is a side cross-sectional schematic diagram of the base of the present invention;

[0022] Figure 3 It is a schematic diagram of the overall internal structure of the base of the present invention;

[0023] Figure 4 This is a schematic diagram of the separation of the support component and the adjustment component of the present invention;

[0024] Figure 5 It is a schematic diagram of the connection between the deceleration assembly and the support assembly of the present invention;

[0025] Figure 6 It is a side cross-sectional schematic diagram of the connection between the deceleration assembly and the support assembly of the present invention;

[0026] Figure 7 It is a side cross-sectional schematic diagram of the connection between the locking assembly and the adjusting assembly of the present invention;

[0027] Figure 8 It is a side sectional schematic diagram of the positioning assembly of the present invention.

[0028] In the figure: 1. base; 2. non-contact liquid level sensor; 3. clamping seat; 4. pin rod 1; 5. spring 1; 6. rubber strip; 7. support seat 1; 8. limit plate; 9. spring 2; 10. baffle; 11. oblique connecting rod; 12. connecting seat; 13. hollow tube; 14. limit ring; 15. pin block; 16. connecting plate 1; 17. V-shaped spring; 18. pressure rod; 19. pressure block; 20. rack; 21. hinge seat; 22. cam; 23. connecting shaft; 24. friction pad; 25. limit rotating groove; 26. coil spring; 27. connecting plate 2; 28. spring 3; 29. ​​spline rod; 30. push rod; 31. connecting column; 32. limit plate; 33. support seat 2; 34. sleeve; 35. pin rod 2; 36. gasket; 37. spring 4; 38. hemispherical slot. DETAILED DESCRIPTION

[0029] 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.

[0030] Example 1: Please refer to Figure 1-Figure 4 , Figure 7The illustrated device is a water volume alarm device for a humidifier tank of a ventilator, comprising a base 1, on the upper side of which are mounted two symmetrically distributed non-contact liquid level sensors 2, which are movably fitted to the outer wall of the humidifier tank. The device also comprises a support assembly for supporting the non-contact liquid level sensor 2, which is mounted between the non-contact liquid level sensor 2 and the base 1; an adjustment assembly for adjusting the spacing between the two non-contact liquid level sensors 2, which is mounted between the two support assemblies and located inside the base 1; a deceleration assembly for slowing down the moving speed of the support assembly, which is mounted inside the base 1 and located on the lower side of the support assembly; and a drive assembly for driving the deceleration assembly downward, which is mounted between the adjustment assembly and the deceleration assembly.

[0031] The supporting assembly includes a clamping seat 3 installed on the outside of the non-contact liquid level sensor 2. Two symmetrically distributed pin rods 4 are fixedly installed on the side of the non-contact liquid level sensor 2 away from the humidification tank, and the pin rod 4 passes through the clamping seat 3. A spring 5 is movably sleeved on the outside of the pin rod 4, and the two ends of the spring 5 are respectively movably abutted against the clamping seat 3 and the non-contact liquid level sensor 2. The spring 5 is used to drive the non-contact liquid level sensor 2 to fit the outer wall of the humidification tank. Two symmetrically distributed rubber strips 6 are fixedly embedded on the side of the clamping seat 3 close to the humidification tank, and the non-contact liquid level sensor 2 is located between the two rubber strips 6.

[0032] A support seat 7 is fixedly installed on the side of the clamping seat 3 away from the humidification tank, and the lower end of the support seat 7 is fixedly connected to a limiting plate 8, and the support seat 7 and the limiting plate 8 are slidably connected to the base 1 through a limiting straight groove, and a spring 29 is fixedly installed on the side of the support seat 7 away from the clamping seat 3, and the end of the spring 29 away from the support seat 7 is fixedly connected to the base 1, and a baffle 10 is installed on the upper side of the spring 29, and the baffle 10 is fixedly connected to the support seat 7, and the connection method between the baffle 10 and the base 1 is a plug-in connection, and the baffle 10 is used to prevent debris from falling into the limiting straight groove.

[0033] The adjustment component includes an inclined connecting rod 11 rotatably installed on the upper end of the limit plate 8, and the end of the inclined connecting rod 11 away from the limit plate 8 is hinged with a connecting seat 12, and a hollow tube 13 passes through the center of the connecting seat 12, and a limiting ring 14 is fixedly sleeved on the outer side of the hollow tube 13. The limiting ring 14 is used to prevent the hollow tube 13 from detaching from the connecting seat 12, and the hollow tube 13 is rotatably connected to the connecting seat 12 through the limiting ring 14.

[0034] A locking assembly is installed on the outer side of the corresponding adjustment assembly inside the base 1, and the locking assembly includes two symmetrically distributed pin blocks 15, and the front end of the pin block 15 is provided with a beveled edge portion. The pin block 15 is movably connected to the connecting seat 12 through a rectangular embedding groove. The lower ends of the two pin blocks 15 are fixedly connected with a connecting plate 16. The pin block 15 is inserted into the rectangular embedding groove for positioning the connecting seat 12. The lower end of the connecting plate 16 is fixedly installed with two symmetrically distributed V-shaped spring pieces 17.

[0035] One end of the V-shaped spring piece 17 away from the connecting plate 16 is fixedly connected to the base 1. The V-shaped spring piece 17 is used to drive the connecting plate 16 to move upward. Two symmetrically distributed pressure rods 18 are fixedly embedded in the upper end of the connecting plate 16, and the two pin blocks 15 are located between the two pressure rods 18. The pressure rod 18 passes through the base 1, and the upper end of the pressure rod 18 is fixedly connected to a pressure block 19.

[0036] Working principle: After connecting each air pipe to the humidifier tank, the personnel presses the hollow tube 13 into the inside of the base 1. During this process, the connecting seat 12 moves away from each other through the two oblique connecting rods 11, and the lower end of the connecting seat 12 drives the two pin blocks 15 to move downward through the oblique edge portion. When the rectangular embedding groove at the lower end of the connecting seat 12 moves to the upper side of the pin block 15, the pin block 15 moves upward and resets to the rectangular embedding groove under the drive of the V-shaped spring piece 17, locking the position of the connecting seat 12. Then the personnel places the humidifier tank at the center of the upper end of the base 1;

[0037] Afterwards, the personnel drives the pin block 15 downward through the pressure block 19, and the contact pin block 15 locks the connecting seat 12. After the pin block 15 is separated from the connecting seat 12, the two limit plates 8 and the clamping seat 3 will approach each other under the driving force of the compression elastic force of the spring 2 9, until the two clamping seats 3 clamp the humidification tank through the rubber strip 6. At this time, the two non-contact liquid level sensors 2 will fit the outer wall of the humidification tank under the driving force of the compression elastic force of the spring 1 5, and can detect the water level in the humidification tank in real time, and can also prevent the liquid in the humidification tank from being contaminated. In addition, the spacing between the two non-contact liquid level sensors 2 can be adjusted, which is convenient for the non-contact liquid level sensor 2 to monitor the water level in disposable humidification tanks or humidification tanks of different models, effectively expanding the scope of use of the water volume alarm device.

[0038] Example 2: Please refer to Figure 5 , Figure 6 This embodiment further explains Example 1. A plurality of racks 20 are provided at the lower end of the limit plate 8. The deceleration assembly includes a hinge seat 21 installed on the lower side of the rack 20. A cam 22 is installed on the inner side of the hinge seat 21. The cam 22 is rotatably connected to the hinge seat 21 through a connecting shaft 23. A friction pad 24 is fixedly sleeved on the outer side of the cam 22. The connection between the friction pad 24 and the plurality of racks 20 is a sliding contact. The friction pad 24 contacts and rubs against the plurality of racks 20, which can slow down the movement speed of the limit plate 8.

[0039] A limited rotation groove 25 is provided in the articulated seat 21 at a location corresponding to the mounting cam 22. Two symmetrically distributed coil springs 26 are fixedly sleeved on the outer side of the connecting shaft 23. The coil spring 26 is used to drive the cam 22 to rotate and reset, and the outer end of the coil spring 26 is fixedly connected to the articulated seat 21. A connecting plate 27 is fixedly connected to the lower end of the articulated seat 21, and two symmetrically distributed springs 3 28 are fixedly mounted on the lower end of the connecting plate 27.

[0040] In this embodiment: since the friction pad 24 on the outer side of the cam 22 is movably against the rack 20, when the two limit plates 8 are driven by the compression elastic force of the spring 2 9 to approach each other, the friction pad 24 will be in friction contact with the multiple racks 20, which can effectively slow down the moving speed of the limit plate 8 and the clamping seat 3, thereby preventing the clamping seat 3 from moving too fast and causing the non-contact liquid level sensor 2 to directly hit the humidification tank, thereby preventing the non-contact liquid level sensor 2 from being damaged by the impact;

[0041] Since the air inlet pipe of the humidifier tank is inserted into the liquid, when the gas enters the humidifier tank, it will cause the liquid inside the humidifier tank to surge. During the liquid surging process, since the cam 22 is inclined toward the humidifier tank and presses against the rack 20, the cam 22 can lock the limit plate 8 and the clamping seat 3 through the rack 20 to prevent the clamping seat 3 from moving away from the humidifier tank. Therefore, during the operation of the humidifier tank, the liquid inside the humidifier tank surges. Since the deceleration component locks the limit plate 8 through the rack 20, the humidifier tank can be prevented from shaking during operation, thereby effectively enhancing the accuracy of water level monitoring of the non-contact liquid level sensor 2.

[0042] Example 3: Please refer to Figure 4 , Figure 5 , Figure 8 This embodiment further explains Example 2. The driving assembly includes a spline rod 29 that is plugged and unplugged with the hollow tube 13. A push rod 30 is fixedly installed on the outer side of the spline rod 29, and the push rod 30 is located at the upper center of the connecting plate 27. A hemispherical portion 1 is provided at one end of the push rod 30 away from the spline rod 29. The push rod 30 is in sliding contact with the connecting plate 27 through the hemispherical portion 1. A positioning assembly is installed at one end of the spline rod 29 away from the hollow tube 13.

[0043] The positioning assembly includes a connecting column 31 fixedly connected to the spline rod 29, and one end of the connecting column 31 away from the spline rod 29 is fixedly connected to a limiting plate 32, and the outer sides of the connecting column 31 and the limiting plate 32 are movably sleeved with a support seat 23, and the connecting column 31 is rotatably connected to the support seat 23 through the limiting plate 32, and a plurality of sleeves 34 distributed equidistantly around the circumference are fixedly embedded on the support seat 23, and a pin rod 235 is movably embedded at one end of the sleeve 34 close to the connecting column 31, and the pin rod 235 is movably embedded. A hemispherical portion 2 is provided at one end of the rod 2 35 close to the connecting column 31, and a gasket 36 is fixedly connected to one end of the pin rod 2 35 away from the connecting column 31. A spring 4 37 is movably abutted against the side of the gasket 36 away from the pin rod 2 35. A plurality of hemispherical grooves 38 equidistantly distributed around the circumference are provided on the outer side of the connecting column 31, and the hemispherical portion 2 is movably connected to the connecting column 31 through the hemispherical grooves 38. The hemispherical portion 2 is embedded in the hemispherical grooves 38 to position the spline rod 29 and the push rod 30.

[0044] In this embodiment: when the humidifier tank needs to be removed, the personnel rotate the spline rod 29 through the hollow tube 13, and the push rod 30 slides in contact with the connecting plate 27 through the hemispherical portion 1 during the rotation of the spline rod 29. During this process, the connecting plate 27 and the cam 22 will move downward under the drive of the push rod 30. Since the cam 22 is rotatably connected to the hinge seat 21 through the connecting shaft 23, the cam 22 can easily break away from the rack 20. When the push rod 30 is against the connecting plate 27 and rotates to be perpendicular to the connecting plate 27, the push rod 30 will be in contact with the connecting plate 27. When the connection is straight, the hemispherical portion 2 at the end of the pin rod 2 35 will be embedded in the corresponding hemispherical groove 38 driven by the compression force of the spring 4 37, and the push rod 30 can be positioned through the connecting column 31. After that, the personnel can change the distance between the two clamping seats 3 by pressing the hollow tube 13 to avoid being hindered by the deceleration component when adjusting the distance between the two clamping seats 3. Before pressing the pressure block 19 to disengage the pin block 15 from the connecting seat 12, the personnel can first rotate the hollow tube 13 to disengage the push rod 30 from the connecting plate 27.

[0045] 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.

[0046] 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. A ventilator humidification tank water volume alarm device, comprising a base, two symmetrically distributed non-contact liquid level sensors are installed on the upper side of the base, and the non-contact liquid level sensors are movably fitted with the outer wall of the humidification tank, characterized in that: Also includes: A support assembly, used for supporting the non-contact liquid level sensor, the support assembly being installed between the non-contact liquid level sensor and the base; An adjusting component, used for adjusting the distance between the two non-contact liquid level sensors, the adjusting component being installed between the two supporting components and located inside the base; A deceleration assembly, used to slow down the moving speed of the support assembly, the deceleration assembly is installed inside the base and located at the lower side of the support assembly; A driving assembly, used for driving the deceleration assembly to move downward, and the driving assembly is installed between the adjusting assembly and the deceleration assembly; The support assembly includes a clamping seat installed on the outside of the non-contact liquid level sensor, two symmetrically distributed pin rods are fixedly installed on the side of the non-contact liquid level sensor away from the humidification tank, and the pin rods penetrate the clamping seat, a spring is movably sleeved on the outside of the pin rod, and the two ends of the spring are movably abutted with the clamping seat and the non-contact liquid level sensor respectively, and two symmetrically distributed rubber strips are fixedly embedded on the side of the clamping seat close to the humidification tank, and the non-contact liquid level sensor is located between the two rubber strips; A support seat 1 is fixedly installed on the side of the clamping seat away from the humidification tank, and the lower end of the support seat 1 is fixedly connected to a limiting plate, a spring 2 is fixedly installed on the side of the support seat 1 away from the clamping seat, and one end of the spring 2 away from the support seat 1 is fixedly connected to the base, a baffle is installed on the upper side of the spring 2, and the baffle is fixedly connected to the support seat 1, and the connection between the baffle and the base is a plug-in connection; The adjustment assembly includes an oblique connecting rod rotatably mounted on the upper end of the limit plate, an end of the oblique connecting rod away from the limit plate is hingedly connected to a connecting seat, a hollow tube is passed through the center of the connecting seat, a limit ring is fixedly sleeved on the outer side of the hollow tube, and the hollow tube is rotatably connected to the connecting seat through the limit ring; A locking assembly is installed on the outside of the corresponding adjustment assembly inside the base. The locking assembly includes two symmetrically distributed pin blocks, and the front end of the pin block is provided with a beveled edge portion. The pin block is movably connected to the connecting seat through a rectangular groove. The lower ends of the two pin blocks are fixedly connected to a connecting plate 1, and the lower end of the connecting plate 1 is fixedly installed with two symmetrically distributed V-shaped spring pieces.

2. A humidifier tank water volume alarm device for a breathing machine according to claim 1, characterized in that: One end of the V-shaped spring piece away from the connecting plate is fixedly connected to the base, and two symmetrically distributed pressure rods are fixedly embedded in the upper end of the connecting plate, and two pin blocks are located between the two pressure rods. The pressure rod passes through the base, and the upper end of the pressure rod is fixedly connected to a pressure block.

3. A humidifier tank water volume alarm device for a breathing machine according to claim 2, characterized in that: A plurality of racks are arranged at the lower end of the limit plate, and the deceleration assembly comprises an articulated seat installed at the lower side of the racks, a cam is installed on the inner side of the articulated seat, and the cam is rotatably connected to the articulated seat through a connecting shaft, a friction pad is fixedly sleeved on the outer side of the cam, and the connection between the friction pad and the plurality of racks is sliding contact.

4. A humidifier tank water volume alarm device for a breathing machine according to claim 3, characterized in that: A limited rotation groove is provided in the articulated seat at the corresponding installation cam position, and two symmetrically distributed coil springs are fixedly sleeved on the outer side of the connecting shaft, and the outer end of the coil spring is fixedly connected to the articulated seat, and a connecting plate 2 is fixedly connected to the lower end of the articulated seat, and two symmetrically distributed springs 3 are fixedly installed on the lower end of the connecting plate 2.

5. A humidifier tank water volume alarm device for a breathing machine according to claim 4, characterized in that: The driving assembly includes a spline rod connected to the hollow tube by plugging and unplugging. A push rod is fixedly installed on the outer side of the spline rod, and the push rod is located at the upper center of the second connecting plate. A positioning assembly is installed at the end of the spline rod away from the hollow tube.

6. A humidifier tank water volume alarm device for a breathing machine according to claim 5, characterized in that: The positioning assembly includes a connecting column fixedly connected to the spline rod, an end of the connecting column away from the spline rod is fixedly connected to a limiting plate, the outer sides of the connecting column and the limiting plate are movably sleeved with a support seat 2, a plurality of sleeves equidistantly distributed in a circle are fixedly embedded on the support seat 2, a pin rod 2 is movably embedded in one end of the sleeve close to the connecting column, a gasket is fixedly connected to the end of the pin rod 2 away from the connecting column, and a spring 4 is movably abutted against the side of the gasket away from the pin rod 2.

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