Gravity milk feeder for newborns

Abstract

The utility model relates to the technical field of medical instruments, and discloses a newborn milk gravity feeder which is characterized in that a stirring component is connected to the bottom of a sealing cover and is driven by a driving component arranged in the sealing cover to rotate along the circumferential direction of a milk storage bottle; according to the milk stirring device, milk blocks in milk stored in the milk storage bottle are fully stirred, so that the milk blocks which are not completely dissolved are thoroughly dissolved, and the situation that a stomach tube is blocked by the milk blocks is effectively avoided; meanwhile, by means of stirring of the stirring assembly, the situation that due to static suspension of the milk storage bottle, the milk in the milk storage bottle is layered and forms suspended matter, and then the flow speed of the milk in the stomach tube is slowed down is avoided; the suction cup is arranged at the upper end of the sealing cover so that the sealing cover and the milk storage bottle can be reliably positioned on the inner top wall of the constant-temperature box under the action of atmospheric pressure, and it is guaranteed that the posture of the milk storage bottle is stable in the feeding process.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field especially, is a kind of newborn milk liquid gravity feeding device. BACKGROUND

[0002] Traditional newborn gravity feeding device technology is mainly related to the connection of milk storage container and stomach tube, and the staff suspends and fixes the milk storage container in the upper position of newborn by adhesive tape or directly holds the milk storage container by hand, directly utilizes the action of gravity, and makes milk slowly flow into the stomach of sick child. The fixed way of adhesive tape makes the fixation of milk storage container not firm, which easily leads to milk pouring, and brings unnecessary trouble to medical staff. Holding the milk storage container by hand undoubtedly further aggravates the work burden of medical staff. If milk is not fully mixed, there will be milk block in milk, which will cause the blockage of stomach tube. In the feeding process, the milk in the milk storage container will also be easily stratified due to static suspension, and then suspended matter is generated, which causes the flow rate of milk to slow down in the stomach tube. SUMMARY

[0003] The utility model aims at providing a newborn milk liquid gravity feeding device, which solves the problem of milk block in milk and stratification, blockage or slow flow rate of milk in the prior art.

[0004] In order to achieve the above-mentioned purpose, the application provides a newborn milk liquid gravity feeding device, which comprises:

[0005] The side wall of the milk storage bottle is provided with a gas permeable hole penetrating along the radial direction of the milk storage bottle;

[0006] The sealing cover is detachably connected to the upper end of the milk storage bottle;

[0007] The stirring assembly is coaxially arranged at the bottom of the sealing cover, the sealing cover is provided with a driving assembly connected with the stirring assembly, and the driving assembly is used to drive the stirring assembly to rotate along the circumference of the milk storage bottle;

[0008] The suction cup is arranged on the upper end surface of the sealing cover, and is used to position the sealing cover on the top wall in the incubator;

[0009] The stomach tube is communicated with the bottom of the milk storage bottle; and

[0010] The battery assembly is arranged in the sealing cover, and is used to supply power to the driving assembly.

[0011] In some embodiments of the application, the sealing cover is provided with a containing cavity, the driving assembly comprises a driving shaft coaxially rotatingly installed in the containing cavity, the upper end of the driving shaft is connected with a speed regulating gear set, and the speed regulating gear set is driven by a micro motor arranged in the containing cavity.

[0012] The lower end of the drive shaft extends downwardly at least partially out of the sealing cover for connecting the stirring assembly.

[0013] In some embodiments of the present application, the stirring assembly comprises a stirring rod coaxially connected with the drive shaft, and a plurality of stirring blades are arranged along the axial direction of the stirring rod.

[0014] In some embodiments of the present application, the stirring rod is detachably connected with the drive shaft.

[0015] In some embodiments of the present application, a jack hole is coaxially arranged at one end of the drive shaft extending out of the sealing cover, and the inner diameter of the jack hole is the same as the outer diameter of the stirring rod; the upper end of the stirring rod is connected with a clamping shaft extending along the radial direction of the stirring rod, and a clamping groove is arranged on the wall of the jack hole for clamping the stirring rod with the clamping shaft.

[0016] In some embodiments of the present application, the clamping groove comprises a first groove, a second groove and a third groove, the first groove and the third groove extend along the axial direction of the jack hole, and the second groove extends along the circumferential direction of the jack hole; the first groove, the second groove and the third groove all penetrate the wall of the jack hole along the radial direction of the jack hole.

[0017] The first groove and the third groove are arranged along the circumferential direction of the jack hole, the lower end of the first groove penetrates the wall of the jack hole, and the lower end of the third groove does not penetrate the wall of the jack hole.

[0018] The second groove is located between the first groove and the third groove, and the two ends of the second groove along the circumferential direction of the jack hole correspondingly communicate with the upper ends of the first groove and the third groove.

[0019] The stirring rod is driven to move along the axial direction and the circumferential direction of the jack hole, so that the clamping shaft sequentially enters the first groove, the second groove and the third groove, and the stirring rod is positioned along the circumferential direction of the jack hole.

[0020] In some embodiments of the present application, an abutting plate is movably arranged along the axial direction of the jack hole in the jack hole, the lower end surface of the abutting plate forms an abutting surface for abutting against the top of the stirring rod, and the upper end surface of the abutting plate is connected with an elastic member arranged along the axial direction of the jack hole, and the other end of the elastic member is connected with the jack hole.

[0021] In some embodiments of the present application, the speed regulating gear set comprises a first bevel gear coaxially sleeved with the drive shaft, a second bevel gear coaxially sleeved with the output shaft of the micro motor and engaged with the first bevel gear, and the diameter of the first bevel gear is greater than the diameter of the second bevel gear.

[0022] Some embodiments of the present application, the outer wall of the milk storage bottle is provided with a scale line.

[0023] Some embodiments of the present application, the bottom of the sealing cover is coaxially provided with a connecting hole for inserting the milk storage bottle, the inner wall of the connecting hole is provided with a first threaded part, and the outer peripheral wall of the upper end of the milk storage bottle is provided with a second threaded part matched with the first threaded part.

[0024] Compared with the prior art, the new-born baby milk gravity feeding device has the beneficial effects that: the bottom of the sealing cover is connected with the stirring assembly, and the stirring assembly is driven by the driving assembly arranged in the sealing cover to rotate along the circumference of the milk storage bottle, so that the milk blocks in the stored milk in the milk storage bottle are fully stirred, the incompletely dissolved milk blocks are completely dissolved, and the situation that the milk blocks block the stomach tube is effectively avoided; at the same time, the stirring of the stirring assembly also avoids the stratification and formation of suspended matter of the milk in the milk storage bottle due to the stationary suspension of the milk storage bottle, and further causes the situation that the flow rate of the milk in the stomach tube is reduced; the suction cup is arranged at the upper end of the sealing cover to reliably position the sealing cover and the milk storage bottle on the inner top wall of the constant-temperature box under the action of atmospheric pressure, and the posture of the milk storage bottle during feeding is stable. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a schematic view of the sealing cover and the milk storage bottle of the utility model during assembly;

[0026] Figure 2 It is a schematic view of the utility model in a specific use state;

[0027] Figure 3 It is a schematic view of the sealing cover structure of the utility model;

[0028] Figure 4 It is a schematic view of the utility model Figure 3 It is an enlarged schematic view of the structure at A in the utility model;

[0029] Figure 5 It is a schematic view of the utility model in a specific use state;

[0030] Figure 6 It is a schematic view of the sealing cover and the milk storage bottle of the utility model after being cut open;

[0031] Figure 7 It is a schematic view of the utility model in a specific use state;

[0032] In the figure, 1, the milk storage bottle; 11, the air hole; 12, the scale line; 13, the second threaded part; 2, the sealing cover; 21, the containing cavity; 22, the connecting hole; 23, the first threaded part;

[0033] 3, stirring assembly; 31, stirring rod; 311, clamping shaft; 32, stirring blade;

[0034] 4, drive assembly; 41, drive shaft; 411, insertion hole; 412, clamping groove; 4121, first groove; 4122, second groove; 4123, third groove; 42, micro motor; 43, first bevel gear; 44, second bevel gear;

[0035] 5, suction cup; 6, gastric tube; 7, battery assembly; 8, abutting plate; 81, elastic member; 9, constant temperature box. DETAILED DESCRIPTION

[0036] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the present application, but not to limit the scope of the present application.

[0037] In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. It should be understood that the terms "first", "second" and the like are used to describe various information in the present application, but these information should not be limited to these terms, and these terms are only used to distinguish one type of information from another. For example, "first" information can also be referred to as "second" information without departing from the scope of the present application, and similarly, "second" information can also be referred to as "first" information.

[0038] As shown in Figures 1-7 The present application provides a new gravity feeding device for newborn milk, which comprises a milk storage bottle 1, a gas permeable hole 11 is provided on the side wall of the milk storage bottle 1 and penetrates along the radial direction of the milk storage bottle 1, the gas permeable hole 11 is used to enable the outside air to enter the milk storage bottle 1, so that the milk storage bottle 1 and the outside air pressure are balanced, and it is ensured that the milk can enter the gastric tube 6 under the action of gravity to realize gravity feeding; a sealing cover 2 is detachably covered on the upper end of the milk storage bottle 1; a stirring assembly 3 is coaxially arranged at the bottom of the sealing cover 2, a drive assembly 4 connected with the stirring assembly 3 is arranged in the sealing cover 2, and the drive assembly 4 is used to drive the stirring assembly 3 to rotate along the circumferential direction of the milk storage bottle 1; a suction cup 5 is arranged on the upper end surface of the sealing cover 2 and is used to position the sealing cover 2 on the top wall in the constant temperature box 9; a gastric tube 6 is communicated with the bottom of the milk storage bottle 1; and a battery assembly 7 is arranged in the sealing cover 2 and is used to supply power for the drive assembly 4, wherein the battery assembly 7 is a dry battery or a rechargeable storage battery.

[0039] In the specific implementation, the medical staff first pours the prepared milk into the storage bottle 1, then holds the sealing cover 2 and inserts the stirring assembly 3 into the storage bottle 1, connects the sealing cover 2 to the upper end of the storage bottle 1 to seal the storage bottle 1, then places the assembled feeding device into the incubator 9, and suspends the connected sealing cover 2 and storage bottle 1 at a suitable position on the inner top wall of the incubator 9 (above the head of the newborn) by the suction cup 5 on the upper end face of the sealing cover 2. The suction cup 5 is tightly sucked to the inner top wall of the incubator 9 under the action of the difference between the inner and outer atmospheric pressures, thereby ensuring the stability of the storage bottle 1 during the subsequent feeding process. Then the gastric tube 6 is inserted into the esophagus of the newborn to start gravity feeding, while the driving assembly 4 is controlled to work and drive the stirring assembly 3 to rotate in the storage bottle 1 at a suitable speed, thereby stirring the milk in the storage bottle 1. The stirring assembly 3 can completely disperse and dissolve the undissolved milk blocks in the milk, thereby avoiding the blockage of the gastric tube 6 caused by the undissolved milk blocks in the milk. At the same time, the work of the stirring assembly 3 keeps the milk in a flowing state, thereby effectively avoiding the stratification and suspension of the milk in the storage bottle 1 caused by the static suspension of the storage bottle 1 during the feeding process, and slowing down the flow rate of the milk in the gastric tube 6.

[0040] In some embodiments of the present application, as shown in Figure 6 The sealing cover 2 is provided with a containing cavity 21, the driving assembly 4 includes a driving shaft 41 coaxially and rotationally installed in the containing cavity 21, the upper end of the driving shaft 41 is connected with a speed regulating gear set, and the lower end of the driving shaft 41 at least partially extends downward out of the sealing cover 2 for connecting the stirring assembly 3. The speed regulating gear set is driven by a micro motor 42 provided in the containing cavity 21 (the micro motor 42 is powered by the battery assembly 7), and is used to adjust the rotating speed of the output shaft of the micro motor 42 to a smaller and suitable speed, and drive the driving shaft 41 to rotate at the suitable speed, thereby driving the stirring assembly 3 to complete the stirring of the milk in the storage bottle 1 through the driving shaft 41.

[0041] In some embodiments of the present application, as shown in Figure 3 The stirring assembly 3 includes a stirring rod 31 connected with the driving shaft 41, and a plurality of stirring blades 32 are arranged at intervals along the axial direction of the stirring rod. The driving shaft 41 drives the stirring rod 31 to rotate in the storage bottle 1 at a certain speed, thereby realizing the stirring of the milk by the plurality of stirring blades 32 and dispersing and dissolving the undissolved milk blocks in the milk.

[0042] In some embodiments of the present application, the stirring rod 31 is detachably connected with the driving shaft 41, so that when the feeding is completed, the stirring rod 31 can be detached from the driving shaft 41, and the stirring rod 31 and the stirring blade 32 can be cleaned, disinfected, or subjected to high-temperature sterilization treatment. If the stirring rod 31 and the driving shaft 41 are not detachably connected, due to the battery assembly 7 and the miniature motor 42 and other electronic devices arranged in the sealing cover 2, it is difficult to perform high-temperature sterilization and disinfection on the stirring rod 31 and the stirring blade 32, which is not conducive to use hygiene.

[0043] In some embodiments of the present application, as shown in Figure 5 the driving shaft 41 protruding from one end of the sealing cover 2 is coaxially provided with a insertion hole 411 for inserting the upper end of the stirring rod 31, and the inner diameter of the insertion hole 411 is the same as the outer diameter of the stirring rod 31. The upper end of the stirring rod 31 is connected with a clamping shaft 311 extending radially along the stirring rod 31, and the wall of the insertion hole 411 is provided with a clamping groove 412 clamped with the clamping shaft 311. When the stirring rod 31 is inserted into the insertion hole 411, the clamping shaft 311 and the clamping groove 412 are matched to clamp the stirring rod 31 on the driving shaft 41 and reliably connect the stirring plate and the driving shaft 41.

[0044] In some embodiments of the present application, as shown in Figure 4 , Figure 5 the clamping groove 412 includes a first groove 4121, a second groove 4122, and a third groove 4123. The first groove 4121 and the third groove 4123 extend axially along the insertion hole 411, and the second groove 4122 extends circumferentially along the insertion hole 411. The first groove 4121, the second groove 4122, and the third groove 4123 all penetrate the wall of the insertion hole 411 along the radial direction of the insertion hole 411. The first groove 4121 and the third groove 4123 are spaced apart along the circumferential direction of the insertion hole 411. The lower end of the first groove 4121 penetrates the wall of the insertion hole 411, and the lower end of the third groove 4123 does not penetrate the wall of the insertion hole 411. The second groove 4122 is located between the first groove 4121 and the third groove 4123 and is in communication with the upper ends of the first groove 4121 and the third groove 4123, respectively.

[0045] In specific operation, the clamping shaft 311 is aligned with the first groove 4121, the stirring rod 31 is aligned with the insertion hole 411, then the stirring rod 31 is moved upward, and the clamping shaft 311 enters the first groove 4121 from the bottom of the first groove 4121 along with the stirring rod 31, and then moves to the upper end of the first groove 4121. Subsequently, the stirring rod 31 is rotated relative to the driving shaft 41, and the clamping shaft 311 enters the second groove 4122 from the first groove 4121. The stirring rod 31 is continuously rotated, so that the clamping shaft 311 moves to the position where the second groove 4122 and the third groove 4123 are in communication. Then, the stirring rod 31 is moved downward, and the clamping shaft 311 enters the third groove 4123, as shown in Figure 4As shown, at this time, the clamping shaft 311 is located in the third groove 4123, thereby realizing the positioning of the stirring rod 31 along the circumference of the insertion hole 411; in order to facilitate the entry of the clamping shaft 311, the widths of the first groove 4121 and the second groove 4122 can be set to be greater than the outer diameter of the clamping shaft 311, and the width of the third groove 4123 is set to be the same as the outer diameter of the clamping shaft 311, so that when the clamping shaft 311 is located in the third groove 4123, the positioning of the stirring rod 31 along the circumference of the insertion hole 411 is realized, and the stirring rod 31 can rotate synchronously with the driving shaft 41 to realize the stirring effect of the milk liquid. The disassembly of the stirring rod 31 is the reverse process of the above process, which will not be described in detail here.

[0046] As shown in some embodiments of the present application, Figure 4 , Figure 5 As shown, the abutting plate 8 is movably arranged in the insertion hole 411 along the axial direction of the insertion hole 411, the lower end surface of the abutting plate 8 forms a pressing surface for pressing on the upper end of the stirring rod 31, and the upper end surface of the abutting plate 8 is connected with an elastic member 81 (a spring) arranged along the axial direction of the insertion hole 411, and the other end of the elastic member 81 is connected with the insertion hole 411; when the stirring rod 31 is inserted into the insertion hole 411 from bottom to top, the upper end surface of the stirring rod 31 will first contact the pressing surface of the lower end of the abutting plate 8, and as the stirring rod 31 continues to move upward, the abutting plate 8 is forced to move in the insertion hole 411 towards the direction of compressing the elastic member 81, so that the clamping shaft 311 moves to the upper end of the first groove 4121, then the stirring rod 31 is rotated and the clamping shaft 311 enters the second groove 4122, the stirring rod 31 is continuously rotated to make the clamping shaft 311 move to the upper end of the third groove 4123, then the force applied to the stirring rod 31 is removed, and the stirring rod 31 moves downward along the axial direction of the insertion hole 411 under the action of the abutting plate 8 and the spring by a slight distance, so that the clamping shaft 311 abuts against the bottom wall of the third groove 4123, as shown in Figure 4 , thus realizing the positioning of the stirring rod 31 relative to the driving shaft 41; by arranging the abutting plate 8 and the elastic member 81, the stirring rod 31 is always subjected to a pressing force along the axial direction of the insertion hole 411 when it is clamped on the driving shaft 41, thereby realizing the positioning of the stirring rod 31 along the axial direction of the insertion hole 411, and the connection between the stirring rod 31 and the driving shaft 41 is more reliable.

[0047] As shown in some embodiments of the present application, Figure 6 The speed regulating gear set includes a first bevel gear 43 coaxially sleeved with the driving shaft 41, and a second bevel gear 44 coaxially sleeved with the output shaft of the micro motor 42 and meshing with the first bevel gear 43, the diameter of the first bevel gear 43 is greater than that of the second bevel gear 44, so that there is a suitable speed ratio between the output shaft of the micro motor 42 and the driving shaft 41, thereby driving the stirring assembly 3 to rotate in the milk storage bottle 1 at a suitable speed.

[0048] In some embodiments of the application, a scale line 12 is provided on the outer wall of the milk storage bottle 1 for observing the remaining amount of milk in the milk storage bottle 1.

[0049] In some embodiments of the application, as shown in Figure 7 a connecting hole 22 for inserting the milk storage bottle 1 is coaxially provided on the bottom of the sealing cover 2, the inner wall of the connecting hole 22 is provided with a first threaded portion 23, and the outer peripheral wall of the upper end of the milk storage bottle 1 is provided with a second threaded portion 13 matched with the first threaded portion 23, so that the milk storage bottle 1 is threadedly connected to the sealing cover 2 through the cooperation of the first threaded portion 23 and the second threaded portion 13.

[0050] The working process of the utility model is as follows: the medical staff pours the prepared milk into the milk storage bottle 1, then threadedly connects the sealing cover 2 to the milk storage bottle 1, puts the assembled sealing cover 2 and milk storage bottle 1 into the thermostat 9, and suspends and positions the milk storage bottle 1 in the thermostat 9 at a proper position on the top wall through the suction cup 5, then inserts the gastric tube 6 into the esophagus of the newborn, and the gravity feeding process can be started; at the same time, the driving assembly 4 is controlled to start and drive the stirring assembly 3 to stir, so as to disperse and completely dissolve the undissolved milk blocks in the milk, and keep the milk in the milk storage bottle 1 in a flowing state all the time to avoid stratification; after the gravity feeding is completed, the stirring rod 31 is detached from the driving shaft 41, and the stirring rod 31 and the stirring blade 32 can be subjected to high-temperature sterilization and other disinfection treatments, so as to ensure the hygiene of use.

[0051] In summary, the utility model embodiment provides a newborn milk gravity feeder, which is characterized in that the stirring assembly 3 is connected to the bottom of the sealing cover 2 and is driven by the driving assembly 4 arranged in the sealing cover 2 to rotate along the circumference of the milk storage bottle 1, so as to sufficiently stir the milk blocks in the milk stored in the milk storage bottle 1, so that the undissolved milk blocks are completely dissolved, and the gastric tube 6 is effectively prevented from being blocked by the milk blocks; at the same time, the stirring of the stirring assembly 3 also prevents the milk in the milk storage bottle 1 from stratifying and forming suspended matters due to the static suspension of the milk storage bottle 1, and thus prevents the milk from flowing at a reduced speed in the gastric tube 6; the suction cup 5 is arranged on the upper end of the sealing cover 2 to reliably position the sealing cover 2 and the milk storage bottle 1 on the inner top wall of the thermostat 9 under the action of atmospheric pressure, so as to stabilize the posture of the milk storage bottle 1 during feeding.

[0052] The above only describes the preferred embodiments of the utility model, and it should be noted that those skilled in the art can make some improvements and replacements without departing from the technical principles of the utility model, and these improvements and replacements should also be regarded as the protection scope of the utility model.

Claims

1. A gravity feeding device for newborn milk fluid, characterized in that, The utility model relates to a kind of milk storage bottle and sealing cover, including: Milk storage bottle (1), the side wall of the milk storage bottle (1) is provided with air-permeable hole (11) being provided along the radial direction of the milk storage bottle (1); Sealing cover (2), detachably connected to the upper end of the milk storage bottle (1); Stirring assembly (3), coaxially arranged at the bottom of the sealing cover (2), the sealing cover (2) is provided with driving assembly (4) connected with the stirring assembly (3), and the driving assembly (4) is used to drive the stirring assembly (3) to rotate along the circumference of the milk storage bottle (1); Sucker (5), arranged on the upper end surface of the sealing cover (2), for positioning the sealing cover (2) on the top wall in the incubator (9); Gastric tube (6), communicated with the bottom of the milk storage bottle (1); And Battery assembly (7), arranged in the sealing cover (2), for powering the driving assembly (4).

2. The neonatal liquid feeding gravitation apparatus of claim 1, wherein, The sealing cover (2) is provided with a containing cavity (21), and the driving assembly (4) includes a driving shaft (41) coaxially rotatably mounted in the containing cavity (21). The upper end of the driving shaft (41) is connected with a speed regulating gear set, and the speed regulating gear set is driven by a micro motor (42) arranged in the containing cavity (21). The lower end of the driving shaft (41) at least partially extends downwardly out of the sealing cover (2) for connecting the stirring assembly (3).

3. A neonatal liquid gravity feeder according to claim 2, wherein, The stirring assembly (3) includes a stirring rod (31) coaxially connected with the driving shaft (41), and a plurality of stirring blades (32) are arranged at intervals along the axial direction of the stirring rod.

4. The neonatal liquid gravity feeder of claim 3, wherein, The stirring rod (31) is detachably connected with the driving shaft (41).

5. The neonatal liquid gravity feeder of claim 4, wherein, One end of the driving shaft (41) extending out of the sealing cover (2) is coaxially provided with a insertion hole (411) for inserting the upper end of the stirring rod (31). The inner diameter of the insertion hole (411) is the same as the outer diameter of the stirring rod (31). The upper end of the stirring rod (31) is connected with a clamping shaft (311) extending radially along the stirring rod (31) on one side in the axial direction. The wall of the insertion hole (411) is provided with a clamping groove (412) clamped and matched with the clamping shaft (311).

6. The neonatal liquid gravity feeder of claim 5, wherein, The clamping groove (412) includes a first groove (4121), a second groove (4122) and a third groove (4123). The first groove (4121) and the third groove (4123) extend in the axial direction of the insertion hole (411), and the second groove (4122) extends in the circumferential direction of the insertion hole (411). The first groove (4121), the second groove (4122) and the third groove (4123) all extend through the wall of the insertion hole (411) in the radial direction of the insertion hole (411). The first groove (4121) and the third groove (4123) are arranged at intervals in the circumferential direction of the insertion hole (411). The lower end of the first groove (4121) extends through the wall of the insertion hole (411), and the lower end of the third groove (4123) does not extend through the wall of the insertion hole (411). The second groove (4122) is located between the first groove (4121) and the third groove (4123), and the two ends of the second groove (4122) in the circumferential direction of the insertion hole (411) are in communication with the upper ends of the first groove (4121) and the third groove (4123) respectively; The stirring rod (31) is driven to move along the axial direction of the insertion hole (411) first and then along the circumferential direction of the insertion hole (411), so that the clamping shaft (311) sequentially enters the first groove (4121), the second groove (4122) and the third groove (4123).

7. A neonatal liquid gravity feeder according to claim 6, wherein, An abutting plate (8) is movably arranged in the insertion hole (411) along the axial direction of the insertion hole (411), the lower end surface of the abutting plate (8) forms an abutting surface for abutting against the top of the stirring rod (31), and the upper end surface of the abutting plate (8) is connected with an elastic member (81) arranged along the axial direction of the insertion hole (411), the other end of the elastic member (81) is connected with the insertion hole (411).

8. The neonatal liquid gravity feeder of claim 2, wherein, The speed regulating gear set comprises a first bevel gear (43) coaxially sleeved with the driving shaft (41), the output shaft of the micro motor (42) is coaxially sleeved with a second bevel gear (44) engaged with the first bevel gear (43), and the diameter of the first bevel gear (43) is greater than that of the second bevel gear (44).

9. The neonatal liquid gravity feeder of claim 1, wherein, The outer wall of the milk storage bottle (1) is provided with a scale line (12).

10. The neonatal liquid feeding gravitation feeder of claim 1, wherein, The bottom of the sealing cover (2) is coaxially provided with a connecting hole (22) for inserting the milk storage bottle (1), the inner wall of the connecting hole (22) is provided with a first threaded portion (23), and the outer peripheral wall of the upper end of the milk storage bottle (1) is provided with a second threaded portion (13) matched with the first threaded portion (23).

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