Sputum aspirator for child nursing and sputum aspiration method thereof

Abstract

The invention relates to the technical field of child nursing, in particular to a sputum aspirator for child nursing and a sputum aspiration method thereof.The sputum aspirator comprises an air suction device and a basic negative pressure bottle, the basic negative pressure bottle is arranged on the air suction device and connected with the air suction device through an air suction pipe, a sputum aspiration pipe is arranged on the basic negative pressure bottle, and the sputum aspiration pipe is connected with the basic negative pressure bottle. The sputum suction pipe is provided with an opening supporting mechanism capable of opening the mouth of a child and forming supporting. Through the combined action of the rotating assembly, the opening supporting mechanism and the sputum suction pipe, when the rotating assembly drives the sputum suction pipe to slide out of the throat and the trachea of a child, an external thread winding column is pulled to rotate through a connecting pull rope; the connecting pipe sleeve and the sputum suction pipe attached to the inner side of the connecting pipe sleeve are driven to rotate synchronously through the linkage effect of the linkage gear set, the sputum suction pipe is kept in a spinning state when penetrating through the opening supporting mechanism to slide outwards, the defect caused when a worker manually operates a pipeline to rotate is overcome, and the sputum suction process is better completed.

Description

Technical Field

[0001] The invention relates to the technical field of child care, and in particular to a sputum suction device for child care and a sputum suction method thereof. Background Art

[0002] The main types of suction devices are electric negative pressure suction devices and manual simple suction devices. Generally, a suction tube is inserted through the patient's throat into the human trachea, and negative pressure or suction is used to suck out the sticky phlegm from the tracheal wall.

[0003] During pediatric care, some pediatric patients also need to use a suction device to remove respiratory mucus or fluid accumulated during vomiting. Timely suction is required to prevent tracheal obstruction.

[0004] At present, there are still some shortcomings in the suction devices used for child care: during the suction process of the suction hose, medical staff are generally required to manually pull the hose and rotate the hose to slide along the outside of the trachea. During the sliding process, the hose sucks out the mucus on the tracheal wall while rotating to complete the suction process. However, this manual pulling out and rotating the hose to suction the sputum requires a high level of hand movement from the operator, and it is easy for the hose to stagnate and the pulling and pulling process to be unsmooth, resulting in unclean suction. Summary of the invention

[0005] The purpose of the present invention is to provide a suction device for child care, so as to solve the problem that during the suction process of the suction hose, medical staff need to manually pull the hose and rotate the hose to slide along the outside of the trachea. However, the action of manually pulling out and rotating the hose to suction the sputum has high requirements on the operator's hand movements, and it is easy for the hose to stagnate and the pulling and pulling process to be unsmooth, thereby resulting in unclean suction.

[0006] In order to achieve the above object, the present invention provides a sputum suction device for child care, comprising an air suction device and a basic negative pressure bottle, wherein the basic negative pressure bottle is provided with a sputum suction tube, the sputum suction tube is provided with an opening support mechanism capable of opening the child's mouth and forming support, and the sputum suction tube is also provided with a rotating assembly, wherein the rotating assembly at least comprises:

[0007] A connecting tube sleeve is arranged outside the sputum suction tube and is tightly connected to the sputum suction tube;

[0008] An outer ring frame is rotatably connected to the outside of the connecting pipe sleeve;

[0009] A linkage gear set, comprising two gears, one of which is arranged outside the connecting sleeve, and the other is arranged inside the outer ring frame, and the two gears are meshed with each other;

[0010] A wire mechanism disposed in the outer ring frame and coaxially connected to a gear disposed in the outer ring frame;

[0011] and a connecting drawstring, one end of which is fixedly connected to the opening support mechanism and the other end is connected to the wire mechanism;

[0012] Wherein, when the rotating assembly drives the suction tube away from the opening support mechanism, the connecting drawstring can, under the guidance of the wire mechanism, pull the gear arranged in the outer ring sleeve to drive the connecting tube sleeve to rotate, and the suction tube rotates synchronously with the connecting tube sleeve.

[0013] As a further improvement of the technical solution, a receiving housing protrudes outward from one side of the outer ring sleeve to provide a setting space for the linkage gear set.

[0014] As a further improvement of the technical solution, the wire mechanism includes an externally threaded winding column, which is coaxially arranged with the gear arranged in the outer ring sleeve and is rotationally connected to the inner wall of the receiving housing;

[0015] One end of the connecting drawstring is fixedly connected to the end of the externally threaded winding column away from the gear arranged in the outer ring sleeve and then wound around the externally threaded winding column.

[0016] As a further improvement of the technical solution, a reset mechanism is arranged in the receiving housing, and the reset mechanism acts on the wire mechanism so that the wire mechanism can be reset after driving the suction tube to rotate to complete suction. Specifically:

[0017] The reset mechanism includes a central shaft and a reset winding piece. The central shaft is fixedly arranged on the inner wall of the receiving housing, and the externally threaded winding column is rotatably installed at the end of the central shaft. The reset winding piece is wound around the outside of the central shaft, and the rotating end of the reset winding piece presses against the inner wall of the externally threaded winding column, so that when the externally threaded winding column rotates, it presses against the reset winding piece to twist.

[0018] As a further improvement of the technical solution, an inwardly concave thread groove is formed on the outer wall of the externally threaded winding column, and the width diameter of the thread groove is larger than the diameter of the connecting drawstring. A shielding piece is arranged at the connection between the externally threaded winding column and the gear arranged in the outer ring sleeve.

[0019] As a further improvement of the technical solution, the guiding assembly includes a positioning cross shaft and a guiding ring. The positioning cross shaft is arranged inside the receiving housing, and the positioning cross shaft is horizontally arranged at the end of the externally threaded winding column. The guiding ring is rotatably installed on the positioning cross shaft, and the connecting drawstring bypasses the outer arc surface of the guiding ring and is connected to the externally threaded winding column.

[0020] As a further improvement of the technical solution, the opening support mechanism includes a base collar, a mouth support assembly and a pressing assembly. The base collar is sleeved outside the sputum suction tube. Symmetrically arranged mounting grooves are formed in the base collar. Two mouth support assemblies are rotationally mounted inside the mounting grooves in a mirror-symmetrical manner in a group. Two pressing assemblies are respectively arranged at the edges of the two mounting grooves in a group, and the moving end of the pressing assembly presses one end of the mouth support assembly, so that the other end of the mouth support assembly moves away from the base collar.

[0021] As a further improvement of the technical solution, the mouth support assembly includes a rotating frame, a support ring and a torsion spring. The rotating frame is rotationally mounted in the mounting grooves on both sides of the base collar through a shaft body. The support ring is an arc-shaped ring and is arranged at the end of the rotating frame. The torsion spring is arranged at the connection between the rotating frame and the mounting groove, so that the rotating frame maintains a tendency to rotate into the mounting groove.

[0022] As a further improvement of the technical solution, the pressing assembly includes an extrusion frame and a pressing block. The extrusion frame is arranged at the edge of the mounting groove of the base collar. The extrusion frame includes a guiding frame body and an extrusion spring arranged on the guiding frame body. The edge of the pressing block fits the mounting groove and is slidably mounted at the end of the extrusion frame. The extrusion spring acts on the pressing block, so that the pressing block maintains a tendency to move towards the rotating frame and press one end of the rotating frame, enabling the support ring at the other end of the rotating frame to rotate outwards and move away from the base collar.

[0023] A method for sucking sputum from a child using a sputum suction device for child care is as follows:

[0024] S1. First, let the end of the base collar press against the child's tooth part. At this time, the support rings at the ends of the rotating frames on both sides of the base collar will respectively press against the inner sides of the child's upper and lower lips. Under the action of the extrusion spring part of the extrusion frame of the pressing block, the pressing block presses one end of the rotating frame, causing the rotating frame to rotate. At this time, the support rings at the other ends of the rotating frames will synchronously move away from the base collar and open the child's upper and lower lips and tooth part. At this time, let the end of the base collar support between the child's upper and lower teeth, and let the sputum suction tube part pass through the base collar and enter the child's throat;

[0025] S2. When working, use an air suction device to generate suction in the base negative pressure bottle. The base negative pressure bottle then sucks the mucus in the child's throat through the sputum suction tube. During the process, the receiving housing can be pulled away from the opening support mechanism. At this time, the sputum suction tube will slide outwards synchronously with the receiving housing. When the connecting pull rope moves away from the opening support mechanism, it will drive the external thread winding column to rotate. Through the synchronous action of the linkage gear set, it will drive the connecting pipe sleeve to rotate synchronously, thereby driving the sputum suction tube passing through the connecting pipe sleeve to rotate. As the sputum suction tube and the receiving housing slide outwards, the sputum suction tube slowly withdraws from the child's throat and trachea in a continuously rotating state, completing the uniform suction of the mucus in the throat and trachea.

[0026] S3. After the sputum suction is completed, pull out the opening support mechanism from the child's mouth. At this time, since the external thread winding column rotates and squeezes the reset winding piece to twist, when the suction tube is pulled out and the receiving housing is released, the external thread winding column no longer rotates under the tension of the connecting pull rope. Under the reverse torque of the reset winding piece, the external thread winding column will reverse. At this time, the external thread winding column will rotate back and wind the connecting pull rope again on the outside of the external thread winding column, and the receiving housing will approach the opening support mechanism again, facilitating the next use.

[0027] Compared with the prior art, the present invention provides a sputum suction device for child care, having the following beneficial effects:

[0028] 1. Through the combined action of the rotating assembly, the opening support mechanism and the suction tube, the present invention can, when the rotating assembly drives the suction tube to slide out of the child's throat and trachea, utilize the pulling rotation of the connecting pull rope on the external thread winding column, and drive the connecting pipe sleeve and the suction tube attached to the inner side of the connecting pipe sleeve to rotate synchronously through the linkage of the linkage gear set, so that the suction tube maintains a self-rotating state when sliding out through the opening support mechanism, avoiding the drawbacks of manual operation of the pipeline rotation by the staff and better completing the sputum suction process;

[0029] 2. Through the action of the opening support mechanism, by using the extrusion frame to extrude part of the spring, extruding the extrusion block and squeezing one end of the rotating frame, the support ring at the other end of the rotating frame will move away from the base collar and open the upper and lower lips and teeth of the child, and then use the base collar to support between the upper and lower teeth of the child to form a support, completing the opening and opening support of the child's mouth, facilitating the subsequent insertion and extraction of the suction tube and the downward sliding to separate the internal space of the face mask, reducing the space of the face mask outside the patient's nasal respiratory tract, enabling the atomized drug introduced at the output end of the atomization component to be kept at the patient's respiratory tract as much as possible, preventing the over-dispersion of the atomized drug, and adapting to the inhalation of atomized drugs for critically ill patients with shallow breathing. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 is a schematic diagram of the overall structure of another perspective of the present invention;

[0032] Figure 3 is Figure 2 an enlarged view of the structure at A in

[0033] Figure 4 is a schematic diagram of the overall structure of the present invention after removing the receiving housing;

[0034] Figure 5 is Figure 4 an enlarged view of the structure at B in

[0035] Figure 6 This is a schematic diagram of the overall structure of another perspective after removing the receiving housing of the present invention;

[0036] Figure 7 is Figure 6 an enlarged view of the structure at position C in;

[0037] Figure 8 This is a structural distribution diagram of the suction tube, the opening support mechanism and the rotating assembly in the present invention.

[0038] In the figure: 1. Suction device; 2. Basic negative pressure bottle; 3. Suction tube; 4. Receiving housing; 5. Connecting pull rope; 6. Wire mechanism; 601. External thread winding column; 602. Shielding piece; 603. Positioning horizontal axis; 604. Guide ring; 7. Rotating assembly; 701. Outer ring sleeve; 702. Connecting pipe sleeve; 703. Linkage gear set; 8. Reset mechanism; 801. Central axis; 802. Reset winding piece; 9. Basic collar; 10. Mouth support assembly; 1001. Rotating frame; 1002. Support ring; 1003. Torsion spring; 11. Extrusion assembly; 1101. Extrusion frame; 1102. Extrusion block. Detailed implementation manners

[0039] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0040] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0041] Embodiment 1

[0042] A sputum aspirator for children's care. In order to enable the suction tube to maintain a self-rotating state during the process of being drawn out from the throat and trachea of a child, and to avoid problems such as rotation stagnation and unsmooth pulling caused by manual operation of the tube rotation, refer to Figure 1 and Figure 2, where an aspiration device 1 and a basic negative pressure bottle 2 are provided. The basic negative pressure bottle 2 is arranged on the aspiration device 1, and the basic negative pressure bottle 2 is connected to the aspiration device 1 through a suction tube. A sputum suction tube 3 is arranged on the basic negative pressure bottle 2. An opening support mechanism capable of opening the mouth of a child and forming a support is arranged outside the sputum suction tube 3. The sputum suction tube 3 enters the patient's mouth through the opening support mechanism and then is inserted into the human trachea. A rotating assembly 7 is arranged outside the sputum suction tube 3. Specifically:

[0043] See Figure 4 、 Figure 5 and Figure 7 As shown, the rotating assembly 7 includes an outer ring sleeve 701, a connecting pipe sleeve 702 and a linkage gear set 703. The connecting pipe sleeve 702 can be tightly connected to the sputum suction tube 3 (the purpose is that when the connecting pipe sleeve 702 is subjected to a force along the direction of the sputum suction tube 3, the connecting pipe sleeve 702 can slide on the sputum suction tube 3 to adjust the position of the entire rotating assembly 7 on the sputum suction tube 3. When the connecting pipe sleeve 702 is not subjected to force, it remains stationary relative to the sputum suction tube 3. Moreover, when the connecting pipe sleeve 702 rotates, it can drive the sputum suction tube 3 to rotate synchronously). The outer ring sleeve 701 is rotatably connected outside the connecting pipe sleeve 702. The linkage gear set 703 includes two gears, one of which is arranged outside the connecting pipe sleeve 702 and the other is arranged inside the outer ring sleeve 701, and the two are meshed with each other, so as to drive the other gear (i.e., the gear arranged outside the connecting pipe sleeve 702) to drive the connecting pipe sleeve 702 to rotate through the gear arranged inside the outer ring sleeve 701.

[0044] It should be noted that a receiving housing 4 protrudes outward from one side of the outer ring sleeve 701, thereby providing a setting space for the linkage gear set 703, especially for the gear arranged inside the outer ring sleeve 701.

[0045] During implementation, when the rotating assembly 7 drives the sputum suction tube 3 (i.e., the overall structure composed of the outer ring sleeve 701, the connecting pipe sleeve 702 and the linkage gear set 703) to move away from the opening support mechanism, the sputum suction tube 3 is driven to rotate. Among them:

[0046] The rotating assembly 7 further includes a connecting pull rope 5, a wire guiding mechanism 6 and a reset mechanism 8. The wire guiding mechanism 6 is arranged in the receiving housing 4 and is connected to the gear arranged inside the outer ring sleeve 701. One end of the connecting pull rope 5 is fixedly connected to the opening support mechanism, and the other end passes through the side wall of the receiving housing 4 and is connected to the wire guiding mechanism 6, so that the connecting pull rope 5 can drive the gear arranged inside the outer ring sleeve 701 to rotate under the guidance of the wire guiding mechanism 6, and then drive the gear arranged outside the connecting pipe sleeve 702 to drive the connecting pipe sleeve 702 to rotate. At this time, the sputum suction tube 3 rotates synchronously with the connecting pipe sleeve 702.

[0047] See Figure 7 and Figure 8As shown, the reset mechanism 8 is arranged on the inner wall of the receiving housing 4, and the reset mechanism 8 acts on the wire mechanism 6 so that the wire mechanism 6 can be reset after the suction tube 3 is driven to rotate to complete sputum suction.

[0048] See Figure 8 As shown, the above-mentioned wire mechanism 6 specifically includes a guiding component, an external-thread winding column 601 and a shielding piece 602. The guiding component is arranged on the inner wall of the receiving housing 4. The external-thread winding column 601 is coaxially arranged with the gear arranged in the outer ring sleeve 701 and is rotationally connected to the inner wall of the receiving housing 4. One end of the connecting pull rope 5 is fixedly connected to the end of the external-thread winding column 601 away from the gear arranged in the outer ring sleeve 701, and then wound around the external-thread winding column 601, so that the connecting pull rope 5 can drive the external-thread winding column 601 to rotate. When the driving rotating component 7 drives the suction tube 3 to move away from the opening support mechanism, the suction tube 3 slowly slides out of the patient's mouth through the opening support mechanism. At this time, the opening support mechanism stays at the patient's mouth, and the connecting pull rope 5 fixed to the opening support mechanism will unwind from the external-thread winding column 601, driving the external-thread winding column 601 and the connecting pipe sleeve 702 to rotate. In this way, while the connecting pipe sleeve 702 drives the suction tube 3 to slide outwards, it will drive the suction tube 3 to rotate. When driving the suction tube 3 to slide out of the child's throat, the suction tube 3 is in a rotating state, which is convenient for the suction tube 3 to suck out the mucus in the child's throat and trachea in all directions.

[0049] Preferably, a shielding piece 602 is arranged at the connection between the external-thread winding column 601 and the gear arranged in the outer ring sleeve 701. The shielding piece 602 can prevent the connecting pull rope 5 from sliding out of the outside of the external-thread winding column 601.

[0050] Preferably, the guiding component includes a positioning cross shaft 603 and a guiding ring 604. The positioning cross shaft 603 is arranged inside the receiving housing 4, and the positioning cross shaft 603 is horizontally arranged outside the end of the external-thread winding column 601 connected to the gear. The guiding ring 604 is rotatably installed on the positioning cross shaft 603, and the connecting pull rope 5 bypasses the outer arc surface of the guiding ring 604 and is connected to the external-thread winding column 601. When the connecting pull rope 5 bypasses the guiding ring 604, the guiding ring 604 rotates on the positioning cross shaft 603, which can play a role in guiding the connecting pull rope 5.

[0051] Preferably, the reset mechanism 8 includes a central shaft 801 and a reset winding strip 802. The central shaft 801 is fixedly arranged on the inner wall of the receiving housing 4, and the externally threaded winding column 601 is rotatably installed at the end of the central shaft 801. The reset winding strip 802 is wound around the outside of the central shaft 801, and the rotating end of the reset winding strip 802 presses against the inner wall of the externally threaded winding column 601, so that when the externally threaded winding column 601 rotates, it presses against the reset winding strip 802 to twist. When the externally threaded winding column 601 no longer rotates under the pulling force of the connecting drawstring 5, under the reverse acting force of the reset winding strip 802, the externally threaded winding column 601 will rotate back and wind the connecting drawstring 5 on the outside of the externally threaded winding column 601 again.

[0052] Preferably, a concave thread groove is formed on the outer wall of the externally threaded winding column 601, and the width diameter of the thread groove is larger than the diameter of the connecting drawstring 5. Through the thread groove on the outer wall of the externally threaded winding column 601, the connecting drawstring 5 can be conveniently wound around the outside of the externally threaded winding column 601 along the thread groove.

[0053] In this embodiment, during use, first use the opening support mechanism to open the child's mouth and form a support, let the suction tube 3 pass through the opening support mechanism and insert it into the child's throat and enter the respiratory tract (i.e., the trachea). At this time, the rotating assembly 7 approaches the opening support mechanism as the suction tube 3 is inserted. When the suction device 1 and the basic negative pressure bottle 2 generate suction using the suction tube 3, the receiving housing 4 can be held by hand to pull the entire rotating assembly 7 to drive the suction tube 3 to slide outwards. At this time, the connecting drawstring 5 will form a pull around the outside of the externally threaded winding column 601 during the process of moving away from the opening support mechanism, so that the externally threaded winding column 601 rotates. At this time, through the transmission of the linkage gear set 703, it will drive the connecting pipe sleeve 702 to rotate within the outer ring sleeve 701. Since the suction tube 3 passes through the inside of the connecting pipe sleeve 702 and fits tightly, the connecting pipe sleeve 702 will drive the synchronous rotation of the suction tube 3, so that the suction tube 3 maintains a self-rotating state when sliding out through the opening support mechanism, and can completely suck out the mucus on the inner walls of the child's throat and respiratory tract in all directions. There is no need for medical staff to hold the suction tube 3 with both hands for rotation and pulling, effectively avoiding the situation of the suction tube 3 getting stuck in rotation and the pulling process being unsmooth, enabling the operator to complete the operation with one hand, and at the same time using the other hand to complete other tasks, making it more flexible to use.

[0054] Embodiment Two

[0055] As Figure 1-8As shown, this embodiment is basically the same as Embodiment 1. Preferably, in order to support the child's mouth and prevent the child's mouth from closing and tightly biting the suction tube when the child has discomfort in the throat or is in a coma state, an opening support mechanism is provided here, which includes a base collar 9, a mouth support assembly 10, and a pressing assembly 11. The base collar 9 is sleeved outside the suction tube 3. Symmetrically arranged mounting grooves are formed on the base collar 9. Two mouth support assemblies 10 are rotationally mounted inside the mounting grooves in a mirror-symmetrical manner in a group. Two pressing assemblies 11 are respectively arranged at the edges of the two mounting grooves in a group. The moving end of the pressing assembly 11 presses one end of the mouth support assembly 10, so that the other end of the mouth support assembly 10 moves away from the base collar 9. The two mouth support assemblies 10 form an opening and support for the child's mouth on both sides of the base collar 9.

[0056] The mouth support assembly 10 includes a rotating frame 1001, a support ring 1002, and a torsion spring 1003. The rotating frame 1001 is rotationally mounted in the mounting grooves on both sides of the base collar 9 through a shaft body. The support ring 1002 is an arc-shaped ring and is arranged at the end of the rotating frame 1001. The support ring 1002 parts of the two mouth support assemblies 10 can form an opposing arc-shaped support, which is convenient for supporting the inner sides of the upper and lower lips of the child's mouth. The torsion spring 1003 is arranged at the connection between the rotating frame 1001 and the mounting groove, so that the rotating frame 1001 maintains a tendency to rotate into the mounting groove. When the rotating frame 1001 rotates to fit the mounting groove, the support ring 1002 will fit the edge of the base collar 9, which is convenient for inserting the base collar 9 into the child's mouth and then pressing the rotating frame 1001 to rotate, so that the support ring 1002 moves away from the base collar 9 to support the upper and lower lip parts of the child's mouth.

[0057] The pressing assembly 11 includes an extrusion frame 1101 and an extrusion block 1102. The extrusion frame 1101 is arranged at the edge of the mounting groove of the base collar 9. The extrusion frame 1101 includes a guiding frame body and an extrusion spring arranged on the guiding frame body. The edge of the extrusion block 1102 fits the mounting groove and is slidably mounted at the end of the extrusion frame 1101. The extrusion spring acts on the extrusion block 1102, so that the extrusion block 1102 maintains a tendency to move towards the rotating frame 1001 and press one end of the rotating frame 1001, which can make the support ring 1002 at the other end of the rotating frame 1001 rotate outwards and move away from the base collar 9.

[0058] When the child's mouth needs to be opened and supported by the opening support mechanism, the extrusion block 1102 is manually pressed to extrude the basic spring portion on the extrusion frame 1101, so that the end of the basic sleeve ring 9 squeezes the child's teeth. At this time, the support rings 1002 at the ends of the rotating frame 1001 on both sides of the basic sleeve ring 9 will be squeezed on the inner sides of the child's upper and lower lips respectively. Then the extrusion block 1102 is released, and under the action of the extrusion spring portion of the extrusion frame 1101, the extrusion block 1102 squeezes one end of the rotating frame 1001, so that the rotating frame 1001 rotates. At this time, the support ring 1002 at the other end of the rotating frame 1001 will synchronously move away from the basic sleeve ring 9 and open the child's upper and lower lips and teeth. At this time, the end of the basic sleeve ring 9 is supported between the child's upper and lower teeth to complete the opening and support of the child's mouth, and the sputum suction tube 3 is partially passed through the basic sleeve ring 9 and inserted into the child's throat and trachea to carry out the next step of the sputum suction process.

[0059] A method for suctioning sputum from a child using a sputum suction device for child care, the method steps are as follows:

[0060] S1, first let the end of the basic ring 9 squeeze the child's teeth. At this time, the support rings 1002 at the ends of the rotating frame 1001 on both sides of the basic ring 9 will be squeezed on the inner sides of the child's upper and lower lips respectively. Under the action of the extrusion spring part of the extrusion frame 1101, the extrusion block 1102 squeezes one end of the rotating frame 1001, so that the rotating frame 1001 rotates. At this time, the support ring 1002 at the other end of the rotating frame 1001 will synchronously move away from the basic ring 9 and open the child's upper and lower lips and teeth. At this time, let the end of the basic ring 9 be supported between the child's upper and lower teeth, and let the suction tube 3 part pass through the basic ring 9 into the child's throat;

[0061] S2, when working, the suction device 1 is used to generate suction into the basic negative pressure bottle 2, and the basic negative pressure bottle 2 sucks out the mucus in the child's throat through the sputum suction tube 3. During the process, the receiving shell 4 can be pulled away from the opening support mechanism. At this time, the sputum suction tube 3 will slide outward synchronously with the receiving shell 4. When the connecting pull rope 5 is away from the opening support mechanism, it will pull the external thread winding column 601 to rotate, and through the synchronous action of the linkage gear set 703, it will drive the connecting tube sleeve 702 to rotate synchronously, thereby driving the sputum suction tube 3 passing through the connecting tube sleeve 702 to rotate. As the sputum suction tube 3 and the receiving shell 4 slide outward, the sputum suction tube 3 is slowly drawn out of the child's throat and trachea in a continuously rotating state, thereby completing the uniform suction of mucus in the throat and trachea.

[0062] S3. After sputum suction is completed, pull out the opening support mechanism from the child's mouth. At this time, since the external-thread winding column 601 rotates and squeezes the reset winding piece 802 to twist, when the suction tube 3 is withdrawn and the receiving housing 4 is released, the external-thread winding column 601 no longer rotates under the pulling force of the connecting pull rope 5. Under the reverse torque of the reset winding piece 802, the external-thread winding column 601 will rotate in reverse. At this time, the external-thread winding column 601 will rotate back and wind the connecting pull rope 5 again on the outside of the external-thread winding column 601, and the receiving housing 4 will approach the opening support mechanism again, facilitating the next use.

[0063] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sputum suction device for child care, comprising an air suction device (1) and a basic negative pressure bottle (2), wherein the basic negative pressure bottle (2) is provided with a sputum suction tube (3), characterized in that: The sputum suction tube (3) is provided with an opening support mechanism capable of opening the child's mouth and providing support. The sputum suction tube (3) is also provided with a rotating assembly (7), and the rotating assembly (7) comprises at least: A connecting tube sleeve (702), which is sleeved outside the sputum suction tube (3) and is tightly connected to the sputum suction tube (3); An outer ring frame (701) is rotatably connected to the outside of the connecting pipe sleeve (702); A linkage gear set (703), comprising two gears, one of which is arranged outside the connecting sleeve (702), and the other is arranged inside the outer ring frame (701), and the two gears are meshed with each other; A wire guide mechanism (6) disposed in the outer ring frame (701) and coaxially connected to a gear disposed in the outer ring frame (701); and a connecting pull rope (5), one end of which is fixedly connected to the opening support mechanism and the other end of which is connected to the wire guide mechanism (6); When the rotating assembly (7) drives the sputum suction tube (3) away from the opening support mechanism, the connecting pull rope (5) can, under the guidance of the wire mechanism (6), pull the gear arranged in the outer ring frame (701) to drive the connecting tube sleeve (702) to rotate, and the sputum suction tube (3) and the connecting tube sleeve (702) keep rotating synchronously.

2. The sputum suction device for child care according to claim 1, characterized in that: One side of the outer ring frame (701) protrudes outward to form a receiving shell (4) to provide a setting space for the linkage gear set (703).

3. The sputum suction device for child care according to claim 2, characterized in that: The guide wire mechanism (6) comprises a guide assembly, an externally threaded winding column (601) and a shielding sheet (602); the guide assembly is arranged on the inner wall of the receiving shell (4); the externally threaded winding column (601) is coaxially arranged with a gear arranged in an outer ring frame (701) and is rotatably connected to the inner wall of the receiving shell (4); and the shielding sheet (602) is arranged at the connection between the externally threaded winding column (601) and the inner gear of the outer ring frame (701); One end of the connecting pull rope (5) is fixedly connected to one end of the external thread winding column (601) away from the gear arranged in the outer ring frame (701), and then is wound around the external thread winding column (601).

4. The sputum suction device for child care according to claim 3, characterized in that: A reset mechanism (8) is arranged in the receiving shell (4), and the reset mechanism (8) acts on the guide wire mechanism (6) so that the guide wire mechanism (6) can be reset after driving the sputum suction tube (3) to rotate and complete the sputum suction. Specifically: The reset mechanism (8) comprises a central shaft (801) and a reset coil (802), wherein the central shaft (801) is fixedly arranged on the inner wall of the receiving shell (4), and the externally threaded winding column (601) is rotatably mounted on the end of the central shaft (801), and the reset coil (802) is wound around the outside of the central shaft (801), and the rotating end of the reset coil (802) squeezes the inner wall of the externally threaded winding column (601), so that when the externally threaded winding column (601) rotates, it squeezes the reset coil (802) and twists it.

5. The sputum suction device for child care according to claim 3, characterized in that: The outer wall of the external thread winding column (601) is provided with an inwardly concave thread groove, and the width diameter of the thread groove is greater than the diameter of the connecting pull rope (5).

6. The sputum suction device for child care according to claim 3, characterized in that: The guide assembly includes a positioning transverse axis (603) and a guide ring (604), wherein the positioning transverse axis (603) is arranged on the inner side of the receiving shell (4), and the positioning transverse axis (603) is horizontally placed on the end of the externally threaded winding column (601), and the guide ring (604) is rotatably mounted on the positioning transverse axis (603), and the connecting pull rope (5) passes around the outer arc surface of the guide ring (604) and is connected to the externally threaded winding column (601).

7. The sputum suction device for child care according to claim 4, characterized in that: The opening support mechanism comprises a basic sleeve (9), a mouth support component (10) and an extrusion component (11); the basic sleeve (9) is sleeved on the outside of the sputum suction tube (3); a mirror-symmetrical mounting groove is provided on the basic sleeve (9); two mouth support components (10) are mounted in a group in a mirror-symmetrical manner on the inner side of the mounting groove; two extrusion components (11) are mounted in a group at the edges of the two mounting grooves, respectively; and the moving end of the extrusion component (11) squeezes one end of the mouth support component (10) so that the other end of the mouth support component (10) is away from the basic sleeve (9).

8. The sputum suction device for child care according to claim 7, characterized in that: The mouth support assembly (10) comprises a rotating frame (1001), a support ring (1002) and a torsion spring (1003); the rotating frame (1001) is rotatably mounted in mounting grooves on both sides of a base sleeve (9) via an axle; the support ring (1002) is an arc-shaped ring and is arranged at the end of the rotating frame (1001); the torsion spring (1003) is arranged at the connection between the rotating frame (1001) and the mounting groove, so that the rotating frame (1001) maintains a tendency to rotate into the mounting groove.

9. The sputum suction device for child care according to claim 8, characterized in that: The extrusion assembly (11) comprises an extrusion frame (1101) and an extrusion block (1102); the extrusion frame (1101) is arranged at the edge of the mounting groove of the base collar (9); the extrusion frame (1101) comprises a guide frame body and an extrusion spring arranged on the guide frame body; the edge of the extrusion block (1102) is in contact with the mounting groove and is slidably mounted on the end of the extrusion frame (1101); the extrusion spring acts on the extrusion block (1102) so that the extrusion block (1102) maintains a tendency to move toward the rotating frame (1001) and to squeeze one end of the rotating frame (1001), thereby enabling the support ring (1002) at the other end of the rotating frame (1001) to rotate outward and away from the base collar (9).

10. A method for suctioning sputum from a child using the child care suction device as claimed in claim 9, wherein the method comprises the following steps: S1, first, the end of the basic sleeve ring (9) is pressed against the child's teeth. At this time, the support rings (1002) at the ends of the rotating frame (1001) on both sides of the basic sleeve ring (9) will be pressed against the inner sides of the child's upper and lower lips respectively. Under the action of the extrusion spring part of the extrusion frame (1101), the extrusion block (1102) presses one end of the rotating frame (1001), so that the rotating frame (1001) rotates. At this time, the support ring (1002) at the other end of the rotating frame (1001) will synchronously move away from the basic sleeve ring (9) and open the child's upper and lower lips and teeth. At this time, the end of the basic sleeve ring (9) is supported between the child's upper and lower teeth, and the sputum suction tube (3) is partially passed through the basic sleeve ring (9) and enters the child's throat; S2, when working, the suction device (1) is used to generate suction force into the basic negative pressure bottle (2), and the basic negative pressure bottle (2) sucks out the mucus in the child's throat through the sputum suction tube (3). During the process, the receiving shell (4) can be pulled away from the opening support mechanism, and the sputum suction tube (3) will slide outward synchronously with the receiving shell (4). When the connecting pull rope (5) is away from the opening support mechanism, it will pull the external thread winding column (601) to rotate, and through the synchronous action of the linkage gear set (703), it will drive the connecting tube sleeve (702) to rotate synchronously, thereby driving the sputum suction tube (3) passing through the connecting tube sleeve (702) to rotate. As the sputum suction tube (3) and the receiving shell (4) slide outward, the sputum suction tube (3) is slowly drawn out of the child's throat and trachea in a continuously rotating state, thereby completing the uniform suction of mucus in the throat and trachea; S3, when the suction is completed, the opening support mechanism of the child's mouth is pulled out. At this time, since the external threaded winding column (601) is rotating and squeezing the reset coil (802) to twist, when the suction tube (3) is pulled out and the receiving shell (4) is loosened, the external threaded winding column (601) is no longer rotated by the tension of the connecting pull rope (5). Under the reverse torque of the reset coil (802), the external threaded winding column (601) will reverse. At this time, the external threaded winding column (601) will rotate and rewind the connecting pull rope (5) on the outside of the external threaded winding column (601), and the receiving shell (4) will approach the opening support mechanism again.

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