Infant sputum suction device and using method thereof

Abstract

The invention belongs to the technical field of sputum suction devices, and particularly relates to a child sputum suction device and a using method thereof.The child sputum suction device comprises a machine body, a collecting barrel and a cleaning water barrel are embedded in the machine body, the top of the collecting barrel communicates with a sputum suction pipe, and the sputum suction pipe communicates with a water inlet pipe; the water inlet pipe is communicated with a cleaning water bucket, the sputum suction pipe controls sputum suction through a negative pressure pump, the water inlet pipe conveys water in the cleaning water bucket into the sputum suction pipe through a pump body, and a trigger assembly and a cleaning mechanism are arranged in the collecting bucket. According to the pediatric sputum suction device and the using method thereof, after sputum suction is completed, the sputum suction pipe is inserted into the containing opening, the pump body is started to convey water in the cleaning water barrel to the sputum suction pipe, blockage and cross infection of the sputum suction pipe can be effectively prevented, a large amount of time does not need to be wasted on cleaning of the sputum suction pipe, and the follow-up sputum suction time of a patient is saved.

Description

Technical Field

[0001] The present invention relates to the technical field of sputum suction devices, in particular to a pediatric sputum suction device and a method of using the same. Background Art

[0002] Suctioning, as an important medical intervention, effectively removes secretions from the patient's respiratory tract through the oral cavity, nasal cavity, or artificial airway through the principle of mechanical suction to ensure a clear airway. This process is particularly important for patients with endotracheal intubation or tracheotomy.

[0003] At present, in the existing technology, after the suction device completes the suction of sputum, in order to prevent secondary infection, the suction tube is generally disassembled and cleaned. The disassembly and cleaning process takes a certain amount of time. When suctioning sputum for different patients, this method will waste a lot of time. In view of this, a pediatric suction device and a method of use thereof are proposed. Summary of the Invention

[0004] The main purpose of the present invention is to provide a pediatric sputum suction device and a method of use thereof, which can solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the pediatric sputum suction device proposed by the present invention includes a body, in which a collection bucket and a cleaning water bucket are embedded and installed, a sputum suction pipe is connected to the top of the collection bucket, a water inlet pipe is connected to the sputum suction pipe, and the water inlet pipe is connected to the cleaning water bucket. The sputum suction pipe is controlled by a negative pressure pump to suction sputum, and the water inlet pipe transports water in the cleaning water bucket to the sputum suction pipe through the pump body. A trigger component and a cleaning mechanism are provided inside the collection bucket, and the cleaning mechanism includes:

[0006] A toothed disc, the toothed disc being rotatably connected to the lower side of the collecting barrel cover, the toothed disc being meshed with a driven gear, and the driven gear being meshed with a driving gear;

[0007] A connecting plate, the connecting plate is fixedly connected to the lower side of the toothed disc, and one end of the connecting plate away from the toothed disc is fixedly connected to a cleaning plate;

[0008] An auxiliary cleaning component is provided on the connecting plate.

[0009] Preferably, a motor is fixedly connected to the top of the cover of the collection bucket, and a rotating shaft is fixedly connected to the output shaft of the motor, the rotating shaft passes through the driving gear and is fixed to the driving gear, the rotating shaft passes through the gear plate and is rotatably connected to the gear plate, and a rotating rod is rotatably connected to the driven gear, and the end of the rotating rod away from the driven gear is fixedly connected to the lower side of the cover of the collection bucket.

[0010] Preferably, the cleaning plate is provided with a plurality of groups of inclined grooves, and the plurality of groups of inclined grooves are arranged in an equidistant array, and the bottom of the inclined grooves of the upper group is flush with the top of the inclined grooves of the lower group.

[0011] Preferably, the auxiliary cleaning assembly includes a fixed plate, which is fixedly connected to the upper side of the connecting plate. The fixed plate is penetrated by a straight rod and is slidably connected to the straight rod. One end of the straight rod is fixedly connected to an elastic ball, and the other end of the straight rod is fixedly connected to a connecting frame, and a rotating wheel is rotatably connected to the connecting frame.

[0012] Preferably, the connecting frame and the fixed plate are elastically connected by an elastic telescopic rod, a hinged rod is hinged on the outer wall of the straight rod, a swing rod is hinged at one end of the hinged rod away from the straight rod, and the swing rod is fixedly connected to the connecting shovel through the connecting rod.

[0013] Preferably, the trigger assembly includes a fixed plate 1, a fixed plate 2 and a floating plate, the fixed plate 1 and the fixed plate 2 are both penetrated by the rotating shaft and fixedly connected to the rotating shaft, the floating plate is sleeved on the rotating shaft, the floating plate can move between the fixed plate 1 and the fixed plate 2, and a contact switch is embedded on the lower side of the fixed plate 1.

[0014] Preferably, the trigger assembly further includes a connecting assembly and a scraper, and the connecting assembly and the scraper are both arranged below the second fixing plate, and the scraper is wedge-shaped.

[0015] Preferably, the connecting assembly includes a sleeve, which is fixedly connected to the lower side of the fixed plate 2, and the sleeve is sleeved with a vertical rod, which passes through the fixed plate 2 and is slidably connected to the fixed plate 2. A fixing ring is fixedly connected to the outer wall of the vertical rod, and the fixing ring is slidably connected in the sleeve. The fixing ring is elastically connected to the inner wall of the sleeve through a reset spring, and the bottom of the vertical rod is fixed to the scraper.

[0016] Preferably, a placement port is provided on the top of the cover of the collection bucket, a discharge port is provided at the bottom of the collection bucket, a discharge pump is provided on the discharge port, a protrusion is fixedly connected to the lower side of the cover of the collection bucket, the bottom of the collection bucket is inclined toward the discharge port, and a water replenishment port is provided on the top of the cleaning water bucket.

[0017] The present invention provides a method for using a pediatric sputum suction device, comprising the following steps:

[0018] S1. First, insert the suction tube into the child's throat, and then start the negative pressure pump on it to suction the sputum;

[0019] S2. After the sputum is sucked, the suction tube is inserted into the placement port, and the pump body is started to allow the water in the cleaning bucket to enter the suction tube through the water inlet pipe to clean the suction tube, and the waste liquid enters the collection bucket;

[0020] S3. When there is a lot of sputum in the collection bucket, the float rises to abut against the contact switch on the lower side of the fixed plate, alerting the staff to turn on the discharge pump on the discharge port to discharge the sputum;

[0021] S4. Start the motor, the output shaft of the motor drives the rotating shaft to rotate, which in turn drives the driving gear to rotate, and then the driven gear drives the gear plate to reduce the speed, so that the connecting plate drives the cleaning plate to clean the sputum on the inner wall of the collection bucket. The chute makes it easy for the sputum to be discharged. When the rotating wheel passes through the protrusion, the connecting frame compresses the elastic telescopic rod, and the straight rod drives the elastic ball to knock and vibrate the cleaning plate, so that the sputum attached to the cleaning plate falls off. The hinged rod drives the swing rod to move, and the swinging movement of the connecting shovel breaks up the water flow entering the collection bucket;

[0022] S5. When the sputum in the collection bucket is less, the float falls back to the second fixed plate, squeezing the vertical rod to move, the fixed ring compresses the reset spring, and the scraper contacts the bottom of the collection bucket. Then, through the rotation of the rotating shaft, the second fixed plate drives the vertical rod and the scraper to rotate, scraping the sputum at the high position at the bottom of the collection bucket to the low position.

[0023] The present invention provides a pediatric sputum suction device and a method of using the device. The device has the following beneficial effects:

[0024] (1) After the sputum is sucked out, the pediatric suction device and its use method can effectively prevent the suction tube from being blocked and cross-infected by inserting the suction tube into the placement port and starting the pump to transport water in the cleaning bucket to the suction tube. There is no need to waste a lot of time on cleaning the suction tube, thus saving the time of subsequent patients' suctioning.

[0025] (2) The pediatric sputum suction device and its use method use a cleaning mechanism. The output shaft of the motor can drive the active gear to rotate, so that the driven gear drives the gear plate to slow down the rotation. The connecting plate drives the cleaning plate to clean the sputum on the inner wall of the collection bucket. The inclined groove design on the cleaning plate facilitates the discharge of sputum. At the same time, when the rotating wheel passes through the protrusion, the elastic telescopic rod is compressed, and the straight rod drives the elastic ball to knock the cleaning plate, so that the attached sputum falls off, effectively ensuring the cleanliness of the sputum suction tube and the collection bucket, and reducing the risk of cross infection.

[0026] (3) The pediatric sputum suction device and its use method can automatically remind the staff when there is a lot of sputum in the collection bucket through the use of a trigger component. The float plate contacts the contact switch as the sputum level rises, prompting the staff to clean the sputum. When cleaning and discharging the sputum, not only does the cleaning plate clean the bucket wall, but when the float plate falls back and squeezes the vertical rod, the scraper contacts the bottom of the collection bucket and rotates with the shaft to scrape the high-level sputum at the bottom to the lower level. Combined with the design of the bottom of the collection bucket tilted toward the discharge port, the sputum is discharged more thoroughly and the residue is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 the structures shown in these drawings without paying any creative work.

[0028] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0029] Figure 2 This is a schematic diagram of a partial three-dimensional cross-sectional structure of the present invention Figure 1 ;

[0030] Figure 3 It is a schematic diagram of a partial three-dimensional structure of the present invention;

[0031] Figure 4 This is a schematic diagram of a partial three-dimensional cross-sectional structure of the present invention Figure 2 ;

[0032] Figure 5 For the present invention Figure 4 Schematic diagram of the structure of A in the middle;

[0033] Figure 6 This is a schematic structural diagram of the cleaning mechanism of the present invention;

[0034] Figure 7 For the present invention Figure 6 Schematic diagram of the structure of B.

[0035] Description of Figure Numbers:

[0036] 1. Machine body; 2. Collection bucket; 3. Suction tube; 4. Cleaning bucket; 5. Water inlet pipe; 21. Placement port; 22. Discharge port; 23. Bump; 41. Water filling port; 6. Trigger assembly; 61. Fixed plate 1; 62. Contact switch; 63. Floating plate; 64. Fixed plate 2; 65. Connecting assembly; 66. Scraper; 651. Sleeve; 652. Vertical rod; 653. Fixed ring; 7. Cleaning mechanism; 71. Toothed disc; 72. Driven gear; 73. Rotating rod; 74. Driving gear; 75. Connecting plate; 76. Cleaning plate; 77. Chute; 78. Auxiliary cleaning assembly; 781. Fixed plate; 782. Straight rod; 783. Elastic ball; 784. Connecting frame; 785. Rotating wheel; 786. Elastic telescopic rod; 787. Articulated rod; 788. Swinging rod; 789. Connecting shovel.

[0037] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0039] See also Figure 1-Figure 7 The present invention proposes a pediatric sputum suction device, including a body 1, in which a collecting bucket 2 and a cleaning water bucket 4 are embedded and installed. The top of the collecting bucket 2 is connected to a sputum suction tube 3, and the sputum suction tube 3 is connected to a water inlet pipe 5. The water inlet pipe 5 is connected to the cleaning water bucket 4. The sputum suction tube 3 is controlled by a negative pressure pump to suction sputum. The water inlet pipe 5 transports the water in the cleaning water bucket 4 to the sputum suction tube 3 through the pump body. A trigger component 6 and a cleaning mechanism 7 are provided inside the collecting bucket 2.

[0040] In an embodiment of the present invention, a placement port 21 is provided on the top of the cover of the collecting bucket 2, a discharge port 22 is provided at the bottom of the collecting bucket 2, a discharge pump is provided on the discharge port 22, a protrusion 23 is fixedly connected to the lower side of the cover of the collecting bucket 2, the bottom of the collecting bucket 2 is inclined toward the discharge port 22, and a water replenishment port 41 is provided on the top of the cleaning water bucket 4. When cleaning the sputum suction tube 3, the sputum suction tube 3 is inserted into the placement port 21, and then the pump body is started to allow the water in the cleaning water bucket 4 to enter the sputum suction tube 3 through the water inlet pipe 5, thereby cleaning the sputum suction tube 3 and the waste liquid enters the collecting bucket 2, which can effectively prevent the sputum suction tube 3 from being blocked and cross-infected, and there is no need to waste a lot of time on cleaning the sputum suction tube 3, saving the time for subsequent patients to suction sputum.

[0041] Furthermore, the trigger assembly 6 includes a fixed plate 1 61, a fixed plate 2 64 and a floating plate 63. The fixed plate 1 61 and the fixed plate 2 64 are both penetrated by the rotating shaft and fixedly connected to the rotating shaft. The floating plate 63 is sleeved on the rotating shaft. The floating plate 63 can move between the fixed plate 1 61 and the fixed plate 2 64. A contact switch 62 is embedded on the lower side of the fixed plate 1 61. When there is a lot of sputum in the collection barrel 2, the floating plate 63 rises to abut against the contact switch 62 on the lower side of the fixed plate 1 61, reminding the staff to turn on the discharge pump on the discharge port 22 to discharge the sputum.

[0042] In an embodiment of the present invention, the cleaning mechanism 7 includes a toothed disc 71, a connecting plate 75 and an auxiliary cleaning assembly 78. The toothed disc 71 is rotatably connected to the lower side of the cover of the collection bucket 2. A driven gear 72 is engaged in the toothed disc 71, and the driven gear 72 is engaged with the driving gear 74. The connecting plate 75 is fixedly connected to the lower side of the toothed disc 71. The end of the connecting plate 75 away from the toothed disc 71 is fixedly connected to a cleaning plate 76. The auxiliary cleaning assembly 78 is provided on the connecting plate 75. The top of the cover of the collection bucket 2 is fixedly connected to a motor, and a rotating shaft is fixedly connected to the output shaft of the motor. The rotating shaft passes through the driving gear 74 and is fixed to the driving gear 74. The rotating shaft passes through the toothed disc 71 is rotatably connected to the toothed disc 71, and a rotating rod 73 is rotatably connected to the driven gear 72. The end of the rotating rod 73 away from the driven gear 72 is fixedly connected to the lower side of the cover plate of the collecting bucket 2. A plurality of groups of inclined slots 77 are provided on the cleaning plate 76, and the plurality of groups of inclined slots 77 are arranged in an equidistant array. The bottom of the upper group of inclined slots 77 is flush with the top of the lower group of inclined slots 77. The output shaft of the motor drives the rotating shaft to rotate, thereby driving the driving gear 74 to rotate, and then the driven gear 72 drives the toothed disc 71 to rotate at a reduced speed, so that the connecting plate 75 drives the cleaning plate 76 to clean the sputum on the inner wall of the collecting bucket 2, and the sputum is discharged under the action of the inclined slots 77.

[0043] Furthermore, the auxiliary cleaning assembly 78 includes a fixed plate 781, which is fixedly connected to the upper side of the connecting plate 75. The fixed plate 781 is penetrated by a straight rod 782 and is slidably connected to the straight rod 782. One end of the straight rod 782 is fixedly connected to an elastic ball 783, and the other end of the straight rod 782 is fixedly connected to a connecting frame 784. A rotating wheel 785 is rotatably connected to the connecting frame 784. The connecting frame 784 is elastically connected to the fixed plate 781 through an elastic telescopic rod 786. A hinged rod 787 is hinged on the outer wall of the straight rod 782, and the hinged rod 787 is away from one end of the straight rod 782. The swing rod 788 is hinged, and the swing rod 788 is fixedly connected to the connecting shovel 789 through the connecting rod. When the rotating wheel 785 passes through the protrusion 23, the rotating wheel 785 is squeezed by the protrusion 23, and the connecting frame 784 compresses the elastic telescopic rod 786, and then the straight rod 782 drives the elastic ball 783 to knock and vibrate the cleaning plate 76, so that the sputum attached to the cleaning plate 76 falls off, and the hinged rod 787 drives the swing rod 788 to move, and the connecting shovel 789 swings to break up the water flow entering the collection bucket 2, effectively ensuring the cleanliness of the suction tube 3 and the collection bucket 2, and reducing the risk of cross infection.

[0044] The trigger assembly 6 also includes a connecting assembly 65 and a scraper 66. The connecting assembly 65 and the scraper 66 are both arranged below the fixed piece 64. The scraper 66 is wedge-shaped. The connecting assembly 65 includes a sleeve 651. The sleeve 651 is fixedly connected to the lower side of the fixed piece 64. The sleeve 651 is sleeved with a vertical rod 652. The vertical rod 652 passes through the fixed piece 64 and is slidably connected to the fixed piece 64. A fixing ring 653 is fixedly connected to the outer wall of the vertical rod 652. The fixing ring 653 is fixedly connected to the outer wall of the vertical rod 652. It is slidably connected in the sleeve 651, and the fixing ring 653 is elastically connected to the inner wall of the sleeve 651 through a reset spring. The bottom of the vertical rod 652 is fixed to the scraper 66. In the process of cleaning and discharging sputum, the sputum will gradually decrease. When the floating plate 63 falls back and squeezes the vertical rod 652, the scraper 66 contacts the bottom of the collecting barrel 2, and rotates with the rotating shaft to scrape the high-position sputum at the bottom to the low position. Combined with the design of the bottom of the collecting barrel 2 tilted toward the discharge port 22, the sputum can be discharged more thoroughly and the residue can be reduced.

[0045] It should be noted that the above-mentioned electrical components are all existing technology products. Technical personnel in this field select, install and complete the circuit debugging work according to the needs of use to ensure that all electrical appliances can work normally. The components are all universal standard parts or components known to technical personnel in this field. Their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods, and no specific restrictions are made here.

[0046] The present invention provides a method for using a pediatric sputum suction device, comprising the following steps:

[0047] S1. Insert the suction tube 3 into the child's throat, and then start the negative pressure pump to suction the sputum;

[0048] S2. After the sputum is sucked, the suction tube 3 is inserted into the placement port 21, and the pump body is started to allow the water in the cleaning bucket 4 to enter the suction tube 3 through the water inlet pipe 5, thereby cleaning the suction tube 3 and the waste liquid enters the collection bucket 2;

[0049] S3, when there is a lot of sputum in the collection bucket 2, the float 63 rises to abut against the contact switch 62 on the lower side of the fixed plate 61, reminding the staff to turn on the discharge pump on the discharge port 22 to discharge the sputum;

[0050] S4. Start the motor, and the output shaft of the motor drives the rotating shaft to rotate, which in turn drives the driving gear 74 to rotate, and then the driven gear 72 drives the toothed disc 71 to reduce the speed, so that the connecting plate 75 drives the cleaning plate 76 to clean the sputum on the inner wall of the collection bucket 2. The inclined groove 77 makes it easy for the sputum to be discharged. When the rotating wheel 785 passes the protrusion 23, the connecting frame 784 compresses the elastic telescopic rod 786, and the straight rod 782 drives the elastic ball 783 to knock and vibrate the cleaning plate 76, so that the sputum attached to the cleaning plate 76 falls off. The hinged rod 787 drives the swinging rod 788 to move, and the connecting shovel 789 swings to break up the water flow entering the collection bucket 2;

[0051] S5. When the sputum in the collecting bucket 2 is less, the floating plate 63 falls back to the fixed plate 64, squeezing the vertical rod 652 to move, the fixed ring 653 compresses the return spring, and the scraper 66 contacts the bottom of the collecting bucket 2. Then, through the rotation of the rotating shaft, the fixed plate 64 drives the vertical rod 652 and the scraper 66 to rotate, scraping the sputum at the high position at the bottom of the collecting bucket 2 to the low position.

[0052] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention description and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A pediatric sputum suction device, comprising a body (1), characterized in that: The machine body (1) is embedded with a collecting bucket (2) and a washing bucket (4); the top of the collecting bucket (2) is connected to a sputum suction pipe (3); the sputum suction pipe (3) is connected to a water inlet pipe (5); the water inlet pipe (5) is connected to the washing bucket (4); the sputum suction pipe (3) is controlled by a negative pressure pump to suck sputum; the water inlet pipe (5) transports water in the washing bucket (4) to the sputum suction pipe (3) through the pump body; a trigger component (6) and a washing mechanism (7) are provided inside the collecting bucket (2); the washing mechanism (7) comprises: a toothed disc (71), the toothed disc (71) being rotatably connected to the lower side of the cover of the collecting barrel (2), the toothed disc (71) being meshed with a driven gear (72), and the driven gear (72) being meshed with a driving gear (74); A connecting plate (75), the connecting plate (75) is fixedly connected to the lower side of the toothed disc (71), and a cleaning plate (76) is fixedly connected to one end of the connecting plate (75) away from the toothed disc (71); An auxiliary cleaning component (78) is provided on the connecting plate (75).

2. A pediatric sputum suction device according to claim 1, characterized in that: The top of the cover of the collecting bucket (2) is fixedly connected to a motor, and the output shaft of the motor is fixedly connected to a rotating shaft, the rotating shaft passes through the driving gear (74) and is fixed to the driving gear (74), the rotating shaft passes through the toothed disc (71) and is rotationally connected to the toothed disc (71), the driven gear (72) is rotationally connected to a rotating rod (73), and one end of the rotating rod (73) away from the driven gear (72) is fixedly connected to the lower side of the cover of the collecting bucket (2).

3. The pediatric sputum suction device according to claim 1, characterized in that: The cleaning plate (76) is provided with multiple groups of inclined grooves (77), and the multiple groups of inclined grooves (77) are arranged in an equidistant array, and the bottom of the upper group of inclined grooves (77) is flush with the top of the lower group of inclined grooves (77).

4. The pediatric sputum suction device according to claim 1, characterized in that: The auxiliary cleaning assembly (78) includes a fixed plate (781), the fixed plate (781) is fixedly connected to the upper side of the connecting plate (75), the fixed plate (781) is penetrated by a straight rod (782) and is slidably connected to the straight rod (782), one end of the straight rod (782) is fixedly connected to an elastic ball (783), the other end of the straight rod (782) is fixedly connected to a connecting frame (784), and a rotating wheel (785) is rotatably connected to the connecting frame (784).

5. A pediatric sputum suction device according to claim 4, characterized in that: The connecting frame (784) and the fixed plate (781) are elastically connected via an elastic telescopic rod (786); a hinged rod (787) is hinged on the outer wall of the straight rod (782); a swing rod (788) is hinged at one end of the hinged rod (787) away from the straight rod (782); and the swing rod (788) is fixedly connected to a connecting shovel (789) via a connecting rod.

6. The pediatric sputum suction device according to claim 1, characterized in that: The trigger assembly (6) includes a fixed plate (61), a fixed plate (64) and a floating plate (63). The fixed plate (61) and the fixed plate (64) are both penetrated by a rotating shaft and fixedly connected to the rotating shaft. The floating plate (63) is sleeved on the rotating shaft. The floating plate (63) can move between the fixed plate (61) and the fixed plate (64). A contact switch (62) is embedded on the lower side of the fixed plate (61).

7. The pediatric sputum suction device according to claim 5, characterized in that: The trigger assembly (6) further comprises a connecting assembly (65) and a scraper (66). The connecting assembly (65) and the scraper (66) are both arranged below the second fixing piece (64). The scraper (66) is in a wedge shape.

8. The pediatric sputum suction device according to claim 7, characterized in that: The connecting assembly (65) includes a sleeve (651), the sleeve (651) is fixedly connected to the lower side of the second fixing plate (64), the sleeve (651) is sleeved with a vertical rod (652), the vertical rod (652) passes through the second fixing plate (64) and is slidably connected to the second fixing plate (64), a fixing ring (653) is fixedly connected to the outer wall of the vertical rod (652), the fixing ring (653) is slidably connected in the sleeve (651), the fixing ring (653) is elastically connected to the inner wall of the sleeve (651) via a reset spring, and the bottom of the vertical rod (652) is fixed to the scraper (66).

9. The pediatric sputum suction device according to claim 1, characterized in that: The top of the cover of the collecting bucket (2) is provided with a placement opening (21), the bottom of the collecting bucket (2) is provided with a discharge opening (22), a discharge pump is provided on the discharge opening (22), a protrusion (23) is fixedly connected to the lower side of the cover of the collecting bucket (2), the bottom of the collecting bucket (2) is inclined toward the discharge opening (22), and the top of the cleaning water bucket (4) is provided with a water replenishment opening (41).

10. A method for using a pediatric sputum suction device, according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. First, insert the suction tube (3) into the child's throat, and then start the negative pressure pump on it to suction the sputum; S2. After the sputum is sucked, the suction tube (3) is inserted into the placement port (21), and the pump body is started, so that the water in the cleaning bucket (4) enters the suction tube (3) through the water inlet pipe (5), thereby cleaning the suction tube (3), and the waste liquid enters the collection bucket (2); S3, when there is a lot of sputum in the collection bucket (2), the float plate (63) rises to abut against the contact switch (62) on the lower side of the fixed plate (61), reminding the staff to open the discharge pump on the discharge port (22) to discharge the sputum; S4, start the motor, the output shaft of the motor drives the rotating shaft to rotate, and then drives the driving gear (74) to rotate, and then the driven gear (72) drives the toothed disc (71) to rotate at a reduced speed, so that the connecting plate (75) drives the cleaning plate (76) to clean the sputum on the inner wall of the collection bucket (2), and the inclined groove (77) makes it easy for the sputum to be discharged. When the rotating wheel (785) passes through the protrusion (23), the connecting frame (784) compresses the elastic telescopic rod (786), and the straight rod (782) drives the elastic ball (783) to knock and vibrate the cleaning plate (76), so that the sputum attached to the cleaning plate (76) falls off, and the hinged rod (787) drives the swinging rod (788) to move, and the connecting shovel (789) swings to break up the water flow entering the collection bucket (2); S5. When the amount of sputum in the collection barrel (2) is less, the float (63) falls back to the fixed plate 2 (64), squeezing the vertical rod (652) to move, the fixed ring (653) compresses the return spring, and the scraper (66) contacts the bottom of the collection barrel (2). Then, through the rotation of the rotating shaft, the fixed plate 2 (64) drives the vertical rod (652) and the scraper (66) to rotate, scraping the sputum at the high position of the bottom of the collection barrel (2) to the low position.

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