Water replenishing device for humidifying tank of breathing machine

Abstract

The utility model discloses a water replenishing device for a humidifying tank of a breathing machine, and belongs to the technical field of medical instruments. Comprising a shell and a bottle rack which is arranged in the shell and can rotate relative to the shell, a plurality of sterile water bottles can be placed on the bottle rack in an inverted mode, and a top cover is arranged at the top of the shell and keeps a gap with the bottoms of the sterile water bottles; the bottom of the shell is provided with a detachable clamp located below one sterile water bottle and used for fixing an infusion apparatus, and a lifting driving mechanism used for driving the detachable clamp to move up and down. The water outlet end of the infusion apparatus is connected with the water filling nozzle of the humidifying tank, a transposition driving mechanism which is used for driving the bottle rack to rotate and is electrically connected with the lifting driving mechanism is arranged in the shell, and a liquid level sensor which is electrically connected with the lifting driving mechanism and is used for detecting the liquid level position in the corresponding sterile water bottle is arranged in the shell. The water replenishing device for the humidifying tank of the breathing machine solves the problems that water replenishing operation of the humidifying tank is tedious, and the humidifying tank is easily polluted due to the fact that sterile water is exposed in the environment.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, and in particular relates to a water replenishing device for a humidifying tank of a breathing machine. Background Art

[0002] When using a ventilator for treatment, the inhaled gas needs to be humidified to prevent the patient's respiratory mucosa from drying out. The humidifier tank is an important component used to humidify the gas in the ventilator, but there is a common problem with the humidifier tank during use: frequent manual water replenishment is required. Manual water replenishment is not only cumbersome to operate, but sterile water is easily contaminated due to long-term exposure to the environment. Contaminated sterile water will not only affect the patient's treatment effect, but may even cause serious consequences such as infection.

[0003] If the humidification tank cannot be replenished in time, when the water level in the humidification tank is too low, it will directly affect the gas humidification effect. Therefore, as disclosed in the prior art, a ventilator humidification tank with automatic water addition, with publication number CN215822044U, provides sufficient water for the humidification tank body through a water storage tank, so that medical staff do not need to add water frequently, and can control the liquid level in the humidification tank through structures such as floating blocks and rubber plugs. However, when medical staff add sterile water to the water storage tank, the sterile water will still be exposed to the environment for a long time, so the risk of sterile water being contaminated cannot be avoided. At the same time, if the sterile water in the water storage tank is not consumed or used within a certain period of time (generally 24 hours), in order to avoid water quality changes and the risk of microbial growth, the sterile water needs to be replaced again. This operation will not only increase the workload of medical staff, but also cause waste of medical resources.

[0004] Although a device for infusion with publication number CN112245704A discloses that the infusion bags at different positions can be rotated to the position of the puncture needle by rotating the turntable to realize automatic switching of the infusion bags, this solution, in the process of fixing the outlet tube, needs to modify the structure outside the outlet tube compared to the standardized infusion bag, and the outer part of the outlet tube needs to be designed into a serrated structure to facilitate the rotation of the latch teeth, which has a high modification cost; secondly, in this solution, the puncture needle is connected to the U-shaped groove of the bracket plate through the I-shaped card block, and the specific connection structure between the I-shaped card block and the puncture needle is not disclosed in this solution, and the specific structural schematic diagram of the I-shaped card block is not disclosed in the attached figure of the specification, so it is impossible to know whether this structure can realize the rapid replacement of disposable medical consumables such as puncture needles (infusion sets). Utility Model Content

[0005] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a humidifier tank water replenishing device for a ventilator, which solves the problem that the humidifier tank water replenishing operation is cumbersome and is easily contaminated due to sterile water being exposed to the environment, and can also realize the rapid replacement of the infusion set.

[0006] To achieve the above object, the technical solution adopted by the present utility model is as follows: A humidifying tank water replenishing device for a ventilator, comprising a housing and a bottle rack disposed within the housing and capable of rotating relative thereto. A plurality of sterile water bottles can be placed upside down on the bottle rack, and a top cover with a gap left between the bottom of the sterile water bottle is provided at the top of the housing;

[0007] Wherein, a detachable clamp for fixing an infusion set and a lifting drive mechanism for driving the detachable clamp to move up and down are provided at the bottom of the housing below one of the sterile water bottles. The detachable clamp includes a first clamping block and a second clamping block hinged to each other. A profiling groove for embedding the puncture needle and the infusion tube on the infusion set is provided on the surface of the first clamping block opposite to the second clamping block, and a sponge gasket is provided on the surface of the second clamping block in contact with the first clamping block;

[0008] The water outlet end of the infusion set is connected to the water injection port of the humidifying tank, and a transposition drive mechanism for driving the bottle rack to rotate and electrically connected to the lifting drive mechanism is provided within the housing;

[0009] A liquid level sensor for detecting the liquid level position in the corresponding sterile water bottle and electrically connected to the lifting drive mechanism is further provided within the housing.

[0010] Optionally, the lifting drive mechanism includes an assembly box and a threaded lead screw rotatably connected within the assembly box;

[0011] Wherein, a first drive motor is provided within the assembly box. The first drive motor is in gear transmission with the threaded lead screw. A slider is threadedly sleeved on the threaded lead screw. One end of the slider extends outside the assembly box, and the slider is slidably connected to a limiting groove on the assembly box. The detachable clamp is connected to the slider, and the assembly box and the detachable clamp can be inserted into the housing from the bottom of the housing.

[0012] Optionally, the transposition drive mechanism includes a frame and a driving dial and a driven sprocket rotatably connected to the frame. A second drive motor capable of driving the driving dial to rotate is provided on the frame. The driving dial and the driven sprocket are in locking cooperation and intermittent engagement. The driven sprocket coincides with the rotation axis of the bottle rack, and a multi-sided connecting column capable of being inserted and matched with the bottle rack is provided on the driven sprocket.

[0013] Optionally, the bottle rack includes a mounting plate and four storage boxes detachably connected to the mounting plate, the sterile water bottle can be placed in the storage box, the bottle stopper on the sterile water bottle can pass through the through hole at the bottom of the storage box, and a window for detecting the liquid level of the sterile water bottle is reserved on the storage box, and the four storage boxes are distributed in a circular array along the rotation axis of the bottle rack.

[0014] Optionally, a plurality of sets of buckles are provided on the top cover and the shell.

[0015] Optionally, an ultraviolet sterilization lamp is arranged in the shell.

[0016] Optionally, a support ring capable of overlapping the bottle rack is provided on the inner wall of the shell, and a plurality of universal balls are provided on a side of the bottle rack facing the support ring.

[0017] Optionally, the number of grooves of the driven groove wheel is the same as the number of the storage boxes.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] (1) In this solution, the sterile water bottle is placed upside down on the bottle rack. When the water replenishment operation is not performed, the sterile water bottle is closed by the bottle stopper, which prevents the contact between the ambient air and the sterile water. When water replenishment is needed, the lifting drive mechanism can drive the puncture needle on the infusion set to pierce the sterile water bottle through the bottle stopper, and the infusion set can connect the sterile water bottle and the water injection port of the humidification tank. The entire water replenishment process is completed in a closed pipeline system. And when the liquid level sensor detects that the liquid level in the sterile water bottle has dropped to a certain level, the transposition drive mechanism and the lifting drive mechanism work together to insert the puncture needle into another sterile water bottle, thereby continuously replenishing the humidification tank. Compared with the traditional method of manually opening the humidification tank for water replenishment, this greatly reduces the chance of sterile water being exposed to the ambient air, effectively reduces the risk of bacteria, dust and other pollutants entering the sterile water, and keeps the sterile water used to humidify the gas in the humidification tank sterile at all times, thereby reducing the possibility of complications such as respiratory infections caused by the use of contaminated sterile water for humidification. At the same time, the sterile water bottles and infusion sets used in this solution are existing medical consumables, and their safety and sterility can be effectively guaranteed. The operation is familiar to medical staff and does not require retraining, making it easy to operate.

[0020] (2) The puncture needle on the infusion set can be inserted into the bottle stopper on the sterile water bottle, and after the puncture needle is pulled out of the bottle stopper, the bottle stopper can still ensure the sealing of the sterile water bottle. Therefore, the remaining sterile water in the sterile water bottle can be stored for a long time. Moreover, since the sterile water capacity in the sterile water bottle is relatively small, even if the sterile water bottle that has not been completely consumed is replaced, it will not cause excessive waste;

[0021] (3) Through the cooperation between the bottle holder and the top cover, the puncture needle can be quickly inserted and removed without changing the structure of the sterile water bottle and the infusion set, saving the cost of equipment modification;

[0022] (4) The structure of the matching of the contoured groove and the sponge gasket can not only effectively fix the infusion set, but also will not affect the liquid discharge effect of the sterile water bottle, and it is also convenient for the rapid replacement of the infusion set. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0024] Figure 1 It is a structural schematic diagram of a preferred embodiment of the utility model in which the humidification tank water replenishing device of the ventilator is connected to the humidification tank through an infusion set;

[0025] Figure 2 It is a schematic cross-sectional view of a water replenishing device for a humidifying tank of a ventilator in a preferred embodiment of the utility model;

[0026] Figure 3 It is a structural schematic diagram of a sterile water bottle in a preferred embodiment of the utility model when it is placed upside down on a bottle rack;

[0027] Figure 4 It is a structural schematic diagram of the active dial and the driven groove wheel in the preferred embodiment of the utility model;

[0028] Figure 5 It is a structural schematic diagram of the lifting drive mechanism and the detachable clamp in the preferred embodiment of the utility model;

[0029] Figure 6 It is a structural schematic diagram of the profiling groove on the first clamping block in the preferred embodiment of the utility model;

[0030] Figure 7 This is a schematic diagram of the structure of the storage box in the preferred embodiment of the utility model;

[0031] Among them, 1. shell; 101. support ring; 2. bottle rack; 201. mounting plate; 202. storage box; 2021. window; 203. universal ball; 3. humidification tank; 4. sterile water bottle; 5. top cover; 6. liquid level sensor; 7. infusion set; 701. puncture needle; 8. first clamping block; 9. second clamping block; 89. contoured groove; 10. assembly box; 1001. limit groove; 11. threaded screw; 12. first drive motor; 13. slider; 14. frame; 15. active dial; 16. driven groove wheel; 1601. multilateral connecting column; 17. second drive motor; 18. buckle; 19. ultraviolet germicidal lamp. DETAILED DESCRIPTION

[0032] The present invention will now be further described in detail in conjunction with the accompanying drawings and embodiments. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0033] It should be noted that if there are directional indications (such as up, down, bottom, top, etc.) involved in this embodiment, the directional indication is only used to explain the relative position relationship, movement, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. Unless otherwise clearly specified and defined, the terms "set", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0034] like Figure 1-Figure 7 As shown, a humidifier tank water replenishing device for a ventilator includes a housing 1 and a bottle rack 2 arranged in the housing 1 and capable of rotating relative thereto, and a plurality of sterile water bottles 4 can be placed inverted on the bottle rack 2, and the sterile water bottles 4 are bottled with standard capacity. A top cover 5 is provided on the top of the housing 1, and the top cover 5 can be folded open or disassembled to open, so that medical staff can take and place the sterile water bottles 4 by opening the top cover 5. At the same time, a detachable clamp located below one of the sterile water bottles 4 and used to fix the infusion set 7, and a lifting drive mechanism for driving the detachable clamp to move up and down are provided at the bottom of the housing 1. Among them, the infusion set 7 is a disposable intravenous infusion set in the prior art, including an infusion tube, an air intake device, a flow regulator, a puncture needle 701 and other components, which does not require additional customization and also has multiple functions such as sterility, air intake, filtration, and flow rate regulation. The detachable clamp can fix the puncture needle 701, the infusion tube, the air intake device, etc. on the infusion set 7, and the puncture needle 701 can also be removed from the detachable clamp. Figure 2 , Figure 5 , Figure 6As shown, the detachable clamp includes a first clamp block 8 and a second clamp block 9 which are hinged to each other. The surface of the first clamp block 8 opposite to the second clamp block 9 is provided with a contoured groove 89 for embedding the puncture needle 701 on the infusion set 7 and the infusion tube, and the first clamp block 8 is connected to the output end of the lifting drive mechanism. It should be noted that a sponge gasket (not shown in the figure) is provided on the surface of the second clamp block 9 in contact with the first clamp block 8. When the second clamp block 9 and the first clamp block 8 are tightly fixed, the sponge gasket can be used to compress medical catheters such as infusion tubes and air intake devices, which can not only avoid damage to them, but also will not affect the hydration effect. Furthermore, the second clamp block 9 is penetrated by a knurled bolt which can be threadedly connected to the first clamp block 8, as shown in the figure. Figure 5As shown, after the second clamp block 9 is flipped to fit with the first clamp block 8, the relative position between the first clamp block 8 and the second clamp block 9 can be fixed by tightening the knurled bolt to make it threadedly connected with the first clamp block 8, so that the puncture needle 701 on the infusion set 7 can be tightly fixed. When replacing the infusion set 7, it is only necessary to reversely loosen the knurled bolt to release the position lock between the second clamp block 9 and the first clamp block 8, so that the puncture needle 701, the air intake device, the infusion tube and other components can be easily removed. At the same time, the sterile water bottle 4 placed upside down on the bottle rack 2 has a gap between its bottom and the top cover 5, so that the existence of the top cover 5 will not affect the rotation of the bottle rack 2. However, when the puncture needle 701 pierces the bottle stopper on the sterile water bottle 4 under the drive of the lifting drive mechanism, the bottom of the sterile water bottle 4 can abut against the top cover 5, so that the sterile water bottle 4 can be effectively restricted from moving. Since the bottle stopper on the sterile water bottle 4 is made of medical materials such as rubber, the bottle stopper can be easily pierced by the puncture needle 701 and maintain good sealing. At the same time, a liquid level sensor 6 electrically connected to the lifting drive mechanism for detecting the liquid level position in the corresponding sterile water bottle 4 (i.e., the sterile water bottle 4 pierced by the puncture needle 701) is also provided in the housing 1. The liquid level sensor 6 can detect whether the liquid level in the sterile water bottle 4 has reached a height at which sterile water cannot be transported into the humidification tank 3. The water outlet end on the infusion pump 7 can be connected to the water filling port on the humidification tank 3, so that the infusion pump 7 can connect the sterile water bottle 4 and the humidification tank 3, and the speed of water replenishment into the humidification tank 3 can be controlled by the air intake device, infusion tube, flow regulator and other components on the infusion pump 7, so that the liquid level height in the humidification tank 3 is maintained within a certain height range. At the same time, since the housing 1 is provided with a transposition drive mechanism electrically connected to the lifting drive mechanism for driving the bottle holder 2 to rotate, when the liquid level sensor 6 detects that the liquid level in the corresponding sterile water bottle 4 cannot be transported into the humidification tank 3, the lifting drive mechanism can drive the puncture needle 701 to be pulled out from the bottle stopper on the sterile water bottle 4, and the transposition drive mechanism can drive the bottle holder 2 to rotate, so that another sterile water bottle 4 filled with sterile water moves to the top of the puncture needle 701, and the lifting drive mechanism can drive the puncture needle 701 to move toward the sterile water bottle 4 filled with sterile water again, until the puncture needle 701 penetrates the inside of the sterile water bottle 4 through the bottle stopper, so that water can be continuously replenished into the humidification tank 3 through the infusion set 7. In this way, there is no need for medical staff to frequently replenish water into the humidification tank 3, and the operation step of adding water into the water storage tank is also eliminated, which effectively reduces the workload of medical staff and avoids the risk of sterile water being contaminated.

[0035] It should be noted that the water replenishing device needs to be placed at a position higher than the humidification tank 3 when in use, and the water replenishing device can be installed on the hanging frame of the ventilator through existing technologies such as hooks, trays, and hanging brackets, so as to complete the transportation of sterile water between the sterile water bottle 4 and the humidification tank 3 by gravity. At the same time, the connection between the water outlet on the infusion set 7 and the water injection port includes but is not limited to the use of a three-way connector and an adapter to ensure the sealing and convenience of the connection between the infusion set 7 and the humidification tank 3.

[0036] At the same time, the liquid level sensor 6 is a prior art, including but not limited to a non-contact ultrasonic liquid level sensor, a non-contact radar liquid level sensor, a non-contact laser liquid level sensor, a capacitive non-contact liquid level sensor, etc., to detect whether the liquid level in the sterile water bottle 4 is at a height at which sterile water cannot be further added to the humidification tank 3.

[0037] The above, such as Figure 2 , Figure 5 As shown, the lifting drive mechanism includes an assembly box 10 and a threaded screw 11 rotatably connected to the assembly box 10. The two ends of the threaded screw 11 can be rotatably connected to the assembly box 10 through bearings to increase the coaxiality and smoothness of the rotation of the threaded screw 11. At the same time, a first driving motor 12 is provided in the assembly box 10. The first driving motor 12 and the threaded screw 11 are driven by gears, and a slider 13 is threadedly sleeved on the threaded screw 11. One end of the slider 13 extends to the outside of the assembly box 10, and the slider 13 is slidably connected to the limit groove 1001 on the assembly box 10. Therefore, when the first drive motor 12 drives the threaded screw 11 to rotate, the slider 13 on the threaded screw 11 can slide along the limit groove 1001, and since the detachable clamp is connected to the slider 13, the detachable clamp can realize linear motion through the first drive motor 12, the threaded screw 11, gears, the slider 13, etc., so that when the puncture needle 701 is fixed on the detachable clamp, the puncture action and insertion and removal action of the puncture needle 701 can be realized.

[0038] It should be noted that, in the present embodiment, the assembly box 10 and the detachable clamp can be embedded into the shell 1 from the bottom of the shell 1. Specifically, the bottom of the shell 1 is provided with a mounting hole for embedding the assembly box 10 and the detachable clamp, and the assembly box 10 is provided with a hand-tightening bolt that can be threadedly connected to the shell 1 around the mounting hole. Therefore, the assembly box 10 and the detachable clamp can be pulled out from the bottom of the shell 1 so as to replace the puncture needle 701 (infusion set 7) on the detachable clamp. At the same time, the assembly box 10 and the detachable clamp can also be inserted from the bottom of the shell 1, and the assembly box 10 and the shell 1 are fixed by the hand-tightening bolt, thereby realizing the quick-change operation of the infusion set 7.

[0039] Further, such as Figure 2 , Figure 4As shown, the transposition drive mechanism includes a frame 14 and an active dial 15 and a driven groove wheel 16 that are rotatably connected to the frame 14. The driven groove wheel 16 coincides with the rotation axis of the bottle rack 2, and the driven groove wheel 16 and the bottle rack 2 can rotate synchronously. Specifically, a groove wheel mechanism in the prior art can be formed between the active dial 15 and the driven groove wheel 16, and a second drive motor 17 that can drive the active dial 15 to rotate is provided on the frame 14. The second drive motor 17 is a prior art and has a self-locking function. Since the active dial 15 and the driven groove wheel 16 are locked and intermittently engaged, when the second drive motor 17 stops driving, the position between the driven groove wheel 16 and the active dial 15 can also remain relatively still, and after the second drive motor 17 rotates a certain angle, the driven groove wheel 16 can also be fixedly rotated at a certain fixed angle, so that the demand for sequential water supply of multiple sterile water bottles 4 can be met.

[0040] It should be noted that the structures on the active dial 15 and the driven groove wheel 16 are set according to the storage capacity of the water replenishment device, that is, the number of grooves of the driven groove wheel 16 is the same as the number of the storage boxes 202. Figure 2 , Figure 3 , Figure 7 As shown, in the present technical solution, the bottle rack 2 includes a mounting plate 201 and four storage boxes 202 detachably connected to the mounting plate 201. Specifically, the mounting plate 201 is provided with four mounting through holes, and the side wall of each mounting through hole is stepped to overlap and support the flange outside the upper opening of the storage box 202. At the same time, a plurality of ear plates are provided on the inner wall of the mounting through hole, and the flange of the storage box 202 is penetrated with fastening bolts that can be threadedly connected with the ear plates, and the fastening bolts can fix the storage box 202 on the mounting plate 201. It should be noted that the sterile water bottle 4 can be placed in the storage box 202, the bottle stopper on the sterile water bottle 4 can pass through the through hole at the bottom of the storage box 202, and a window 2021 is reserved on the storage box 202 for detecting the liquid level of the sterile water bottle 4, so that the liquid level sensor 6 can directly detect whether the sterile water in the bottle is lower than the liquid level through the bottle body of the sterile water bottle 4. The four storage boxes 202 are distributed in a circular array along the rotation axis of the bottle rack 2. Therefore, each time the second drive motor 17 rotates, it can drive the bottle rack 2 to rotate 90° so that the sterile water bottle 4 in the next storage box 202 can correspond to the puncture needle 701.

[0041] As described above, the driven sheave 16 coincides with the rotation axis of the bottle rack 2, and the driven sheave 16 is provided with a multi-sided connection column 1601 that can be plugged with the bottle rack 2, so the transmission relationship between the driven sheave 16 and the bottle rack 2 can be achieved through the plugging between the multi-sided connection column 1601 and the bottle rack 2. At the same time, since the inner wall of the housing 1 is provided with a support ring 101 that can overlap the bottle rack 2, and the bottle rack 2 is provided with a plurality of universal balls 203 on the side facing the support ring 101. Therefore, the universal balls 203 can effectively reduce the resistance of the bottle rack 2 during rotation, and can also reduce the axial load of the driven sheave 16.

[0042] Further, such as Figure 1 As shown, several groups of buckles 18 are arranged on the top cover 5 and the shell 1. The buckles 18 are prior art, including male buckles and female buckles. The male buckles and female buckles can be arranged on the top cover 5 and the shell 1 respectively, which can ensure the connection strength between the top cover 5 and the shell 1 while making it easy to remove the top cover 5 from the shell 1.

[0043] Furthermore, an ultraviolet sterilization lamp 19 is provided in the shell 1, and the ultraviolet sterilization lamp 19 can irradiate the inside of the shell 1, and the ultraviolet rays emitted by the ultraviolet sterilization lamp 19 can effectively destroy the DNA or RNA structure of microorganisms such as bacteria and viruses in the air inside the shell 1, making them lose their reproduction and survival ability, thereby avoiding the attachment of germs to the puncture needle 701 and achieving the effect of sterilization and disinfection.

[0044] Working principle: First, when starting to use, first open the buckle 18, so that the top cover 5 can be removed from the housing 1, and then the sterile water bottle 4 is placed upside down in the storage box 202 in sequence. Then the top cover 5 is reinstalled on the housing 1 and fixed with the buckle 18. When the water replenishment operation is not performed, the sterile water bottle 4 is closed by the bottle stopper, which prevents the contact between the ambient air and the sterile water. When water replenishment is needed, the lifting drive mechanism can drive the puncture needle 701 to pierce the sterile water bottle 4 from the bottle stopper, and the other end of the infusion set 7 is connected to the water injection port of the humidification tank 3. The whole water replenishment process is completed in a closed pipeline system, which can effectively avoid the contamination of sterile water. At the same time, when the liquid level sensor 6 detects that the liquid level in the bottle of sterile water bottle 4 is reduced to a certain extent, the transposition drive mechanism can cooperate with the lifting drive mechanism to insert the puncture needle 701 into another bottle of sterile water bottle 4, thereby continuously replenishing the humidification tank 3. Compared with the traditional method of manually opening containers to add water or using water tanks to add water, this method greatly reduces the chance of sterile water being exposed to ambient air and effectively reduces the risk of contaminants such as bacteria and dust entering sterile water.

[0045] The above is based on the ideal embodiment of the utility model. Through the above description, relevant personnel can make various changes and modifications without departing from the technical concept of the utility model. The technical scope of this utility model is not limited to the content in the specification, and the technical scope must be determined according to the scope of the claims.

Claims

1. A humidifier tank water replenishing device for a respirator, characterized in that: It comprises a shell (1) and a bottle rack (2) arranged in the shell (1) and capable of rotating relative to the shell (1); a plurality of sterile water bottles (4) can be placed in an inverted position on the bottle rack (2); and a top cover (5) is provided on the top of the shell (1) with a gap between it and the bottom of the sterile water bottles (4); The bottom of the housing (1) is provided with a detachable clamp located below one of the sterile water bottles (4) and used to fix the infusion set (7), and a lifting drive mechanism used to drive the detachable clamp to move up and down, the detachable clamp comprises a first clamp block (8) and a second clamp block (9) which are hinged to each other, a surface of the first clamp block (8) opposite to the second clamp block (9) is provided with a contoured groove (89) for embedding the puncture needle (701) on the infusion set (7) and the infusion tube, and a surface of the second clamp block (9) in contact with the first clamp block (8) is provided with a sponge gasket; The water outlet on the infusion device (7) is connected to the water inlet of the humidification tank (3), and a transposition drive mechanism for driving the bottle rack (2) to rotate and electrically connected to the lifting drive mechanism is provided in the housing (1); The housing (1) is also provided with a liquid level sensor (6) which is electrically connected to the lifting drive mechanism and is used to detect the liquid level position in the corresponding sterile water bottle (4).

2. The humidifier tank water replenishing device for a respirator according to claim 1, characterized in that: The lifting drive mechanism comprises an assembly box (10) and a threaded screw (11) rotatably connected to the assembly box (10); The assembly box (10) is provided with a first drive motor (12), the first drive motor (12) and the threaded screw (11) are driven by gears, and a slider (13) is threadedly sleeved on the threaded screw (11), one end of the slider (13) extends to the outside of the assembly box (10), and the slider (13) is slidably connected to a limit groove (1001) on the assembly box (10), the detachable clamp is connected to the slider (13), and the assembly box (10) and the detachable clamp can be embedded into the shell (1) from the bottom of the shell (1).

3. The humidifying tank water replenishing device for a respirator according to claim 2, characterized in that: The transposition drive mechanism comprises a frame (14), and a driving dial (15) and a driven groove wheel (16) rotatably connected to the frame (14); a second driving motor (17) capable of driving the driving dial (15) to rotate is provided on the frame (14); the driving dial (15) and the driven groove wheel (16) are locked and intermittently engaged with each other; the driven groove wheel (16) coincides with the rotation axis of the bottle rack (2); and a polygonal connecting column (1601) capable of plugging and engaging with the bottle rack (2) is provided on the driven groove wheel (16).

4. The humidifier tank water replenishing device for a respirator according to claim 3, characterized in that: The bottle rack (2) comprises a mounting plate (201) and four storage boxes (202) detachably connected to the mounting plate (201); the sterile water bottle (4) can be placed in the storage box (202); the bottle stopper on the sterile water bottle (4) can pass through a through hole at the bottom of the storage box (202); and a window (2021) for detecting the liquid level of the sterile water bottle (4) is reserved on the storage box (202); the four storage boxes (202) are distributed in a circular array along the rotation axis of the bottle rack (2).

5. The humidifier tank water replenishing device for a respirator according to claim 4, characterized in that: A plurality of groups of buckles (18) are provided on the top cover (5) and the shell (1).

6. The humidifier tank water replenishing device for a respirator according to claim 5, characterized in that: An ultraviolet sterilization lamp (19) is arranged in the housing (1).

7. The humidifier tank water replenishing device for a respirator according to claim 6, characterized in that: The inner wall of the housing (1) is provided with a support ring (101) capable of overlapping the bottle rack (2), and a plurality of universal balls (203) are provided on a side of the bottle rack (2) facing the support ring (101).

8. The humidifier tank water replenishing device for a respirator according to claim 7, characterized in that: The number of grooves of the driven groove wheel (16) is the same as the number of the storage boxes (202).

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