CN117797037B

CN117797037B - Nipple for newborn and auxiliary feeding device

Info

Publication number: CN117797037B
Application number: CN202410231419.1A
Authority: CN
Inventors: 王玉红
Original assignee: Affiliated Hospital of Chifeng University
Current assignee: Affiliated Hospital of Chifeng University
Priority date: 2024-03-01
Filing date: 2024-03-01
Publication date: 2024-05-07
Anticipated expiration: 2044-03-01
Also published as: CN117797037A

Abstract

The application provides a nipple for a newborn and an auxiliary feeding device, and relates to the field of pacifiers for infants. The neonate nipple comprises a base, a sucking nozzle, a sealing plate and a switch plate; the base is provided with an assembly hole and a first through hole; the sucking nozzle is provided with a containing cavity and a sucking hole communicated with the containing cavity, the sucking nozzle is arranged on the base, and the containing cavity is communicated with the first through hole; the sealing plate is provided with a second through hole, the sealing plate is installed in the assembly hole, and the second through hole is communicated with the first through hole; the switch board is movably connected with the sealing plate and is used for opening or closing the second through hole. The nipple can be used in a switching mode according to requirements, for example, when feeding of a newborn is not needed, the nipple can be used independently, and the newborn is pacified by sucking the nipple. The nipple does not need to be taken out from the mouth during feeding, and the operation is convenient.

Description

Nipple for newborn and auxiliary feeding device

Technical Field

The invention relates to the field of infant pacifiers, in particular to a neonate nipple and an auxiliary feeding device.

Background

The neonate has natural instinct of sucking from birth, which can ensure that the neonate obtains the needed nutrition. The frequency of sucking the newborn baby is frequent, and the newborn baby sucks the finger under natural condition reflection, and the finger is stained with bacteria, so that unnecessary diseases are brought to the newborn baby. Long-term sucking of the finger can also cause finger deformation, which is unfavorable for healthy growth of the neonate. For this situation, pacifiers are currently used for the newborn to suck. The existing pacifier has single function and can only play a pacifying role, when a newborn needs to be fed with medicines or foods, the pacifier sucked in the mouth of the newborn needs to be taken out, and a new tool is replaced, so that the operation is inconvenient; in addition, when feeding with new tools such as milk bottles and the like, the food or medicine can better enter the neonate mouth by means of extrusion of operators, the operation force is closely related to the feeding amount, basically the operation is carried out by means of experience of the operators, the force is light, the feeding amount is small, and the frequency is increased; the force is heavy, the feeding is more, the swallowing of the newborn is not facilitated, and the milk choking and the like are easy to occur; whether the force is light or heavy, the feeding of the neonate is not facilitated.

Disclosure of Invention

The invention aims to provide a nipple for a newborn and an auxiliary feeding device, which can realize quantitative feeding for a plurality of times, reduce operation difficulty, save time and labor and are beneficial to the health of the newborn.

Embodiments of the present invention are implemented as follows:

In a first aspect, the present invention provides a neonatal teat for feeding or dosing a neonate or infant, comprising:

The device comprises a base, a sucking nozzle, a sealing plate and a switch plate; the base is provided with an assembly hole and a first through hole; the sucking mouth is provided with a containing cavity and a sucking hole communicated with the containing cavity, the sucking mouth is arranged on the base, and the containing cavity is communicated with the first through hole; the sealing plate is provided with a second through hole, the sealing plate is installed in the assembly hole, and the second through hole is communicated with the first through hole; the switch plate is movably connected with the sealing plate and is used for opening or closing the second through hole.

In an alternative embodiment, the switch plate is rotatably engaged with the sealing plate so that the switch plate can open or close the second through hole.

Based on the scheme, the position of the switch plate relative to the sealing plate is adjusted by rotating the switch plate, so that the second through hole is opened or closed conveniently.

In an alternative embodiment, the mounting hole is provided as a threaded hole.

Based on the scheme, when the assembly hole of the base plate is used for being matched with other parts, the other parts can be fixedly connected with the threaded holes in a screwed mode, and the base plate is simple in connection mode and convenient and fast to assemble and disassemble.

In a second aspect, the present invention provides an auxiliary feeding device comprising:

A multiple dosing mechanism and the neonatal nipple of any of the preceding embodiments, the multiple dosing mechanism being detachably connected with the base of the neonatal nipple, the multiple dosing mechanism for dosing or feeding a neonate or infant in an intermittent manner through the suction orifice.

Based on the scheme, through the cooperation of a plurality of ration feeding mechanism and the nipple of the newborn, when operations such as feeding or medicine feeding are needed, the nipple in the mouth of the newborn does not need to be taken out, but the mechanism is directly installed on the base to be fed in a plurality of ration, and the mechanism is fed in a plurality of ration to be utilized to feed in a plurality of ration to carry out intermittent type formula multiple ration feeding through sucking the nozzle, so that the operation is convenient and fast. Meanwhile, quantitative feeding can be realized each time, the condition of excessive or small quantity is effectively avoided, and the health of newborns is facilitated.

In an alternative embodiment, the multiple ration feeding mechanism includes an outer barrel, a drive balloon, an inner swivel, a manifold, and a plurality of delivery modules; the outer cylinder is provided with a rotating inner cavity and a gas transmission hole communicated with the rotating inner cavity, and the outer cylinder is detachably connected with the base; the driving air bag is arranged on the outer side of the outer cylinder and is communicated with the air delivery hole; the inner rotator is rotatably arranged in the rotating inner cavity, and an annular ventilation cavity communicated with the outside is formed between the outer peripheral wall of the inner rotator and the inner peripheral wall of the outer cylinder; the collecting pipe is connected with the inner rotating body, and is used for being simultaneously penetrated in the first through hole and the second through hole and can be communicated with the accommodating cavity; each of the conveying modules is provided with a storage chamber for storing liquid, the plurality of conveying modules are connected with the inner rotating body and are distributed at intervals in the circumferential direction of the inner rotating body, and the storage chambers of the plurality of conveying modules are communicated with the collecting pipe;

when the inner rotor rotates relative to the outer cylinder, the storage chambers of the plurality of conveying modules can sequentially correspond to the air conveying holes, and the corresponding volumes of the storage chambers can be reduced by pressing the driving air bags, so that liquid in the storage chambers enters the collecting pipe.

Based on the above-mentioned scheme, when feeding is needed, aim at the mounting hole on the base with urceolus to aim at the first through-hole on the base with the header, fix the urceolus in the mounting hole, and the header is inserted in first through-hole from the second through-hole, and with hold the chamber intercommunication. The outer cylinder is held by one hand of an operator, and the whole device is adjusted to enable the driving air bag to be located above as much as possible, so that the driving air bag is facilitated to be pressed by the thumb of the hand holding the outer cylinder, the operation difficulty is reduced, and the labor is saved. Then, the other hand of the operator rotates the inner rotor to rotate the inner rotor with respect to the outer cylinder. In this process, the plurality of transport modules on the internal swivel can pass through the position of the driving airbag in turn. For example, when a delivery module reaches the position of the driving air bag, the storage chamber of the delivery air bag can correspond to the air delivery hole on the outer cylinder, when the driving air bag is pressed, air is pressed into the delivery module, the volume of the storage chamber is reduced under the action of air pressure, and liquid in the storage chamber can enter the collecting pipe from the storage chamber and then enter the containing chamber from the collecting pipe for sucking by a neonate. After the liquid in one conveying module is pushed, the internal swivel is rotated according to the sucking condition of the newborn, so that the other conveying module reaches the position of the gas transmission hole for feeding next time, and the operation is circulated.

It should be appreciated that some or all of the suction nozzle may be provided in a transparent configuration to facilitate viewing of the liquid residue within the receiving cavity. For example, the sucking mouth is made of transparent silica gel and other materials.

In addition, the header pipe is firstly penetrated in the second through hole, the second through hole is formed by the sealing plate, and certain elastic deformation can be generated when the sealing plate is combined with the header pipe, so that the combination compactness is improved, and the sealing performance between the header pipe and the sealing plate is improved. The sealing plate may be, but is not limited to, a rubber plate or a silicone plate, etc.

In an alternative embodiment, the conveying module comprises a mounting cylinder, a limiting ring, a push plate, a connecting rod, a piston, a first elastic piece, a guide ring and a conveying pipe, wherein the mounting cylinder is mounted inside the inner rotating body and synchronously rotates with the inner rotating body, a cylinder opening of the mounting cylinder is positioned on the outer peripheral surface of the inner rotating body, and the cylinder opening is used for communicating with the gas conveying hole; the limiting rings and the guide rings are fixed in the mounting cylinder and are arranged at intervals in the axial direction of the mounting cylinder, and the limiting rings are positioned on one side of the guide rings, which is close to the cylinder opening; the push plate, the connecting rod and the piston are sequentially and fixedly connected and all three are slidably arranged in the mounting cylinder, the push plate is positioned between the limiting ring and the guide ring, the first elastic piece is positioned between the push plate and the guide ring, one side of the first elastic piece is abutted with the guide ring, and the other side of the first elastic piece is abutted with the push plate, so that the push plate has a trend of approaching the limiting ring; the connecting rod penetrates through the guide ring, and the piston and the mounting cylinder are matched to define the storage chamber; one end of the conveying pipe is communicated with the storage chamber, and the other end of the conveying pipe is communicated with the collecting pipe.

Based on the scheme, under the initial state, the driving air bag is filled with gas and is in an expansion state, and under the action of the first elastic piece, the push plate is abutted with the limiting ring, and quantitative liquid is stored in the storage cavity. When feeding or medicine feeding is needed, the inner rotating body is rotated to drive the mounting cylinder to move, and when the mounting cylinder rotates to a position where the cylinder opening is aligned with the gas transmission hole of the outer cylinder, the cylinder opening is in sealing butt joint with the gas transmission hole. The driving air bag is pressed, the air pushes the push plate to move close to the guide ring, and the first elastic piece is compressed. The push plate drives the piston to move together through the connecting rod, and the piston moves to reduce the volume of the storage chamber, so that liquid in the storage chamber is pushed from the conveying pipe to the collecting pipe. When the liquid is conveyed, and after sucking of a newborn infant is finished, the internal swivel body is continuously rotated, the original mounting cylinder leaves the gas transmission hole, the gas transmission hole is communicated with the annular ventilation cavity, and external air enters the driving air bag to enable the driving air bag to expand and recover to an initial state. Simultaneously, the nozzle of the mounting cylinder is also communicated with the annular ventilation cavity, and under the elastic action of the first elastic piece, the push plate is pushed to move towards the limiting ring, so that the push plate is in butt reset with the limiting ring. When the subsequent mounting cylinder rotates to the gas transmission hole, the driving air bag is repeatedly operated, so that the liquid in the new mounting cylinder can be conveyed to the collecting pipe and conveyed to the accommodating cavity through the collecting pipe.

It should be understood that the delivery module can be reused, and when the liquid in all the delivery modules is used, the piston is lowered by pressing the driving air bag similar to the liquid suction principle of a syringe, so that the volume of the storage chamber is reduced. And then one end of the collecting pipe is immersed in a liquid source to be supplemented, or liquid is directly injected into the collecting pipe by adopting an injector, the driving air bag is loosened, and under the action of the first elastic piece, the push plate drives the piston to move upwards for resetting, so that the liquid is sucked into the storage cavity by utilizing the conveying pipe, and the liquid supplementing is finished, and the operation is convenient.

In an alternative embodiment, the collecting pipe is rotatably matched with the internal swivel, the collecting pipe is provided with a first port used for being inserted into the accommodating cavity and a second port opposite to the first port, a collecting disc is rotatably installed in the second port, conveying pipes of the conveying modules are inserted into the collecting disc and are distributed at intervals in the circumferential direction of the collecting disc, and the circumferences of the centers of the conveying pipes are coaxially arranged with the collecting disc.

Based on the scheme, when the collecting pipe is inserted into the second through hole, the collecting pipe and the sealing plate are in elastic damping contact, and the collecting pipe cannot rotate relative to the base in the feeding process, so that stability is improved. When the feeding is finished and the collecting pipe needs to be cleaned, the collecting pipe can be rotated, so that the cleaning liquid can better move relative to the inner wall of the collecting pipe, and the cleaning effect is improved.

In addition, collect dish can realize dynamic seal through sealed bearing and collection pipe and be connected, that is to say, collect dish and collection pipe and pass through sealed bearing and be connected, rotate nimble convenient, sealed effectual moreover, be difficult for the weeping. It should be appreciated that in other embodiments, the manifold may be fixedly connected to the manifold such that the inner rotor is able to rotate the manifold with respect to the outer cylinder without affecting the flow of liquid into the manifold and from the manifold into the receiving chamber.

In addition, one or more through holes can be arranged at the end of the collecting pipe, so that liquid in the collecting pipe can enter the containing cavity.

In an alternative embodiment, the conveying module further comprises a sealing ring, a sealing ring and a limiting unit; the sealing ring is arranged on the inner peripheral surface of the outer cylinder and surrounds the gas transmission hole; the sealing ring is arranged on the outer peripheral surface of the inner rotating body and surrounds the cylinder opening of the mounting cylinder; the limiting unit is arranged on the outer cylinder, and is provided with a first position and a second position which are mutually switched, and when the limiting unit is positioned at the first position, the limiting unit is positioned on a rotating path of the sealing ring in a set direction and can be abutted with the sealing ring so as to limit the sealing ring at a position abutted with the sealing ring to continuously rotate in the set direction; when the limiting unit is positioned at the second position, the limiting unit is not positioned on the rotating path of the sealing ring in the set direction so as to release the limitation of the sealing ring.

Based on the scheme, under initial condition, spacing unit is in first position, in the in-process of rotating internal rotation body along setting up the direction, when one of them installation section of thick bamboo rotates to the setting up the position, namely when the position that the nozzle of installation section of thick bamboo aligns with the gas-supply hole, at this moment, the sealing washer aligns with the sealing ring, realize the sealed butt joint of nozzle and gas-supply hole, and the sealing ring that corresponds with this installation section of thick bamboo also with spacing unit butt, so, the internal rotation body continues to be limited along setting up the pivoted degree of freedom, also indicate that transport module has rotated in place, at this moment, can press the drive gasbag, feed the operation, do not need to seek the alignment position deliberately in the rotation process, reduce the operation degree of difficulty, raise the efficiency, labour saving and time saving.

In an alternative embodiment, the outer cylinder is provided with a bypass hole communicated with the gas transmission hole and a mounting hole communicated with the bypass hole;

The limiting unit comprises a plug, a positioning ring, a second elastic piece, a stress plate, a push rod, a limiting plate and a sealing body, wherein the plug is connected with the outer cylinder and seals the mounting hole; the positioning ring is arranged in the mounting hole and is positioned at one side of the bypass hole, which is close to the plug; the stress plate, the push rod and the limiting plate are sequentially and fixedly connected, the stress plate is slidably connected with the mounting hole, the stress plate is positioned between the positioning ring and the plug, the push rod penetrates through the positioning ring and extends out of the mounting hole, an annular space is defined between the push rod and the positioning ring, and the limiting plate is positioned in the annular ventilation cavity; the second elastic piece is arranged between the plug and the stress plate and is used for enabling the stress plate to have a movement trend of being abutted on the positioning ring; the sealing body is arranged in the mounting hole and is used for sealing a gap between the push rod and the mounting hole;

When the limiting unit is positioned at the first position, the stress plate is abutted with the positioning ring, and the limiting plate is positioned on a rotating path of the sealing ring in a set direction and can be abutted with the sealing ring; when the driving air bag is pressed, the stress plate is close to the plug under the action of air pressure, so that the limiting plate is not positioned on a rotating path of the sealing ring in the set direction.

Based on the scheme, feeding operation is carried out through the driving air bag, the limiting unit can be triggered in a linkage mode, the position of the limiting unit is adjusted, the internal rotating body can be directly rotated after feeding is finished, a new conveying module is adjusted to a position to be fed, operation steps are simplified, and operation efficiency is improved. That is, when the in-process of pressing the drive gasbag, part of gas that the drive gasbag stored gets into the installation section of thick bamboo and promotes the push pedal, make the push pedal drive the piston with the interior liquid propelling movement of storage chamber to the collection pipe, and, the other part of gas that the drive gasbag stored gets into the mounting hole from the by-pass hole, drive the atress board and move towards the end cap, when further compressing the second elastic component, drive limiting plate and retract to the direction that the mounting hole is located, the limiting plate leaves the sealing ring, no longer restrict the rotation of sealing ring, the transfer module that the internal rotation body can drive to accomplish feeding rotates and leaves the gas-supply hole. And after the driving air bag is loosened, under the action of the second elastic piece, the stress plate is far away from the plug, the gas entering the mounting hole is pushed to the driving air bag, and the limiting plate is reset after being far away from the plug and can be abutted with the sealing ring at the nozzle of the mounting cylinder of the new conveying module, so that the limiting effect is achieved.

In an alternative embodiment, a part of the outer circumferential surface of the push rod is provided with a conical surface, the conical surface is located in the direction of the bypass hole facing the air outlet of the mounting hole, and one end of the conical surface with smaller inner diameter is close to the stress plate compared with one end of the conical surface with larger inner diameter, so that the conical surface can guide air entering the mounting hole from the bypass hole to move towards the stress plate, and further guide the stress plate to move close to the plug.

Based on above-mentioned scheme, after the drive gasbag was pressed, in gas entered into the mounting hole, gas was directly blocked by the conical surface, and along the conical surface from down upwards the face of keeping away from the end cap of quick contact atress board to drive the atress board fast towards the end cap motion, the push pedal motion is more nimble, and the operation of drive gasbag is more laborsaving.

The embodiment of the invention has the beneficial effects that:

In summary, the nipple for neonates provided in this embodiment may be used by switching the usage modes according to the needs, for example, when the nipple is not required to be fed to a neonate, the nipple may be used alone, and the nipple may be used to pacify the neonate. At this time, the switch board is in the position of closing the second through hole, avoids holding the chamber and directly communicates with external environment, is difficult for polluting and holds the chamber. When the infant feeding device needs to feed for an infant, the switch plate is turned on, the infant nipple is matched with the multiple quantitative feeding mechanism for use, multiple quantitative feeding can be performed through the sucking nozzle, the sucking nozzle does not need to be taken out from the infant mouth for replacement, the emotion of the infant is not easily affected, and feeding operation is facilitated. And the quantitative feeding or medicine feeding can be realized, the time and the labor are saved, the milk choking and other conditions are not easy to occur, and the healthy feeding of the newborn is facilitated.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a neonatal nipple in accordance with an embodiment of the invention;

FIG. 2 is a schematic view of a deformed configuration of a neonatal nipple in accordance with an embodiment of the invention;

FIG. 3 is an exploded view of an auxiliary feeding apparatus according to an embodiment of the present invention;

FIG. 4 is a schematic view showing an assembly structure of an auxiliary feeding device according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of a conveying module according to an embodiment of the present invention;

FIG. 6 is a schematic cross-sectional view of a multiple ration feeding mechanism according to an embodiment of the invention;

fig. 7 is a partially enlarged schematic view of the structure of fig. 5.

Icon:

001-neonatal nipple; 002-multiple ration feeding mechanism; 100-base; 101-a mounting hole; 102-a first via; 103-arc surface; 200-sucking the suction nozzle; 201-a receiving cavity; 202-sucking holes; 300-sealing plate; 301-a second through hole; 400-switch board; 410-rotating shaft; 500-outer cylinder; 501-rotating the inner cavity; 502-an annular plenum chamber; 503-gas transmission holes; 504-bypass holes; 505-mounting holes; 600-driving the air bag; 700-an internal rotator; 710—a first bearing; 800-header; 810-a second bearing; 820-collection tray; 830-a third bearing; 900-a transport module; 910-mounting a cartridge; 911-a storage chamber; 920-limiting rings; 930-pushing plate; 940-a connecting rod; 950-a piston; 960-a first resilient member; 970-guide ring; 980-a delivery tube; 990-sealing ring; 9901-annular bevel; 991-a sealing ring; 992-a limiting unit; 9921-plug; 9922-positioning ring; 9923-a second elastic member; 9924-force plate; 9925-push rod; 9926-limiting plate; 9927-a seal; 9928-conical surface; 993-pull ring.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

In the prior art, the devices for pacifying the newborn and feeding are independent two articles, and the devices need to be repeatedly switched, so that the device is inconvenient to use. The existing feeder is generally manually controlled, the feeding amount and feeding times are adjusted by using experience, the operation is inconvenient, the condition that milk choking of newborns is easily caused by excessive feeding amount is not beneficial to healthy feeding.

In view of this, the designer provides a neonate nipple 001 and including supplementary feeding device of this neonate nipple 001, and the function is diversified, adjusts as required, convenient operation, labour saving and time saving, the security is high.

Referring to fig. 1-6, in this embodiment, the auxiliary feeding device includes a nipple 001 for a newborn and a multiple-dosing feeding mechanism 002, wherein the multiple-dosing feeding mechanism 002 is used in cooperation with the nipple 001 for a newborn, and the multiple-dosing feeding mechanism 002 is used for feeding or dosing for the newborn or the infant in an intermittent manner through the nipple 001 for multiple dosing.

It should be understood that the neonatal nipple 001 can also be used alone, functioning as a pacifier for the neonate.

Notably, through the cooperation of multiple ration feeding mechanism 002 and neonate nipple 001, when operation such as feeding or medicine feeding need be carried out, need not take out the nipple in the neonate mouth, but directly with multiple ration feeding mechanism 002 and neonate nipple 001 cooperation, utilize multiple ration feeding mechanism 002 to carry out intermittent type multiple ration feeding through neonate nipple 001 can, convenient operation is swift. Meanwhile, quantitative feeding can be realized each time, the condition of excessive or small quantity is effectively avoided, and the health of newborns is facilitated.

The following examples illustrate details of the auxiliary feeding device provided by the present application by way of example.

Referring to fig. 1, in the present embodiment, optionally, the nipple 001 for a newborn includes a base 100, a suction nozzle 200, a sealing plate 300, and a switch plate 400; the base 100 is provided with a first through hole 102 of the assembly hole 101; the suction nozzle 200 is provided with a containing cavity 201 and a suction hole 202 communicated with the containing cavity 201, the suction nozzle 200 is arranged on the base 100, and the containing cavity 201 is communicated with the first through hole 102; the sealing plate 300 is provided with a second through hole 301, the sealing plate 300 is installed in the assembly hole 101, and the second through hole 301 is communicated with the first through hole 102; the switch board 400 is movably connected with the sealing plate 300, the switch board 400 is used for opening or closing the second through hole 301, and when the switch board 400 opens the second through hole 301, the first through hole 102, the second through hole 301 and the assembly hole 101 are sequentially communicated.

With the above, the nipple 001 can be used according to the need, for example, when feeding a newborn is not needed, it can be used alone, and the newborn is pacified by the suction nozzle 200. At this time, the switch board 400 is at a position to close the second through hole 301, so as to avoid the direct communication between the accommodating cavity 201 and the external environment, and not to pollute the accommodating cavity 201 easily. When the infant is fed, the switch board 400 is turned on, the infant nipple 001 is matched with the quantitative feeding mechanism 002 for multiple times, the infant nipple can be fed quantitatively for multiple times through the sucking nozzle 200, the sucking nozzle 200 is not required to be taken out from the infant mouth for replacement, the emotion of the infant is not easily affected, and the feeding operation is facilitated. And the quantitative feeding or medicine feeding can be realized, the time and the labor are saved, the milk choking and other conditions are not easy to occur, and the healthy feeding of the newborn is facilitated.

In an alternative embodiment, the switch plate 400 is rotatably engaged with the sealing plate 300 through the rotation shaft 410 such that the switch plate 400 can open or close the second through hole 301. By rotating the switch plate 400, it is advantageous to adjust the position of the switch plate 400 with respect to the sealing plate 300, thereby facilitating the opening or closing of the second through-hole 301.

Alternatively, the fitting hole 101 is provided as a screw hole. When the assembly hole 101 of the substrate is used for being matched with other components, the other components can be fixedly connected with the assembly hole 101 in a screwed mode, and the assembly and disassembly are simple and convenient and quick. It should be understood that when the assembly hole 101 is machined, the axial part of the assembly hole 101 can be set to be a threaded hole, the rest part of the assembly hole 101 is a smooth hole, machining difficulty is reduced, and machining efficiency is improved.

Referring to fig. 2, optionally, a side of the base 100 near the suction nozzle 200 may be further provided with an arc surface 103, so that an angle between the suction nozzle 200 and the base 100 is increased, a contact area between the base 100 and the neonate is reduced, comfort is improved, and friction to the neonate skin is avoided.

Referring to fig. 3-6, in this embodiment, optionally, the multiple-dose feeding mechanism includes an outer barrel 500, a driving balloon 600, an inner rotor 700, a manifold 800, and a plurality of delivery modules 900; the outer cylinder 500 is provided with a rotation chamber 501 and a gas transmission hole 503 communicating with the rotation chamber 501, and the outer cylinder 500 is detachably connected to the base 100, for example, the outer cylinder 500 can be screwed with a screw hole on the base 100. The driving airbag 600 is installed outside the outer cylinder 500 and communicates with the gas delivery hole 503; the inner rotor 700 is rotatably installed in the rotation chamber 501 by a first bearing 710, and an annular ventilation chamber 502 communicating with the outside is formed between the outer circumferential wall of the inner rotor 700 and the inner circumferential wall of the outer cylinder 500. Header 800 is rotatably coupled to internal rotator 700 through second bearing 810, and header 800 is adapted to be simultaneously inserted into first through-hole 102 and second through-hole 301 and to be capable of communicating with accommodating chamber 201. Each of the plurality of transfer modules 900 has a storage chamber 911 for storing liquid, and the plurality of transfer modules 900 are connected to the inner rotor 700 and are arranged at intervals in the circumferential direction of the inner rotor 700, and the storage chambers 911 of the plurality of transfer modules 900 are communicated with the header 800.

When the inner rotor 700 rotates with respect to the outer cylinder 500, the storage chambers 911 of the plurality of transfer modules 900 can sequentially correspond to the air delivery holes 503, and pressing the driving airbag 600 can reduce the volume of the corresponding storage chambers 911 so that the liquid located in the storage chambers 911 enters the header 800.

So designed, when feeding is required, the outer tub 500 is aligned with the fitting hole 101 on the base 100 and the header 800 is aligned with the first through hole 102 on the base 100, the outer tub 500 is fixed in the fitting hole 101, and the header 800 is inserted into the first through hole 102 from the second through hole 301 and communicates with the accommodation chamber 201. The outer cylinder 500 is held by one hand of an operator, and the whole device is adjusted to enable the driving air bag 600 to be located above as much as possible, so that the driving air bag 600 is conveniently pressed by the thumb of the hand holding the outer cylinder 500 by the operator, the operation difficulty is reduced, and the labor is saved. Then, the other hand of the operator rotates the internal rotator 700, and rotates the internal rotator 700 with respect to the outer cylinder 500. In this process, the plurality of transport modules 900 on the inner rotor 700 can pass through the position of the driving airbag 600 in sequence. For example, when one of the delivery modules 900 reaches the position of the driving airbag 600, the storage chamber 911 of the delivery airbag can correspond to the gas delivery hole 503 on the outer cylinder 500, and when the driving airbag 600 is pressed, gas is pressed into the delivery module 900, and the volume of the storage chamber 911 is reduced by the gas pressure, and the liquid in the storage chamber 911 can enter the collection tube 800 from the storage chamber 911, and then enter the accommodating chamber 201 from the collection tube 800 for sucking by the newborn. After the liquid in one delivery module 900 is pushed, the internal swivel 700 is rotated according to the sucking condition of the newborn, so that the other delivery module 900 reaches the position of the air delivery hole 503 for feeding next time, and the circulation operation is completed.

It should be appreciated that some or all of the suction nozzle 200 may be provided in a transparent configuration to facilitate viewing of liquid residue within the receiving cavity 201. For example, the suction nozzle 200 is made of transparent silica gel or other materials.

In addition, the header 800 is first inserted into the second through hole 301, the second through hole 301 is formed by the sealing plate 300, and when the sealing plate 300 is combined with the header 800, a certain elastic deformation can be generated, so that the combination tightness is improved, and the sealing performance between the header 800 and the sealing plate 300 is improved. The sealing plate 300 may be, but is not limited to, a rubber plate or a silicone plate, etc. It should be noted that, the driving airbag 600 may be configured as a folding airbag, which is advantageous for operation.

Referring to fig. 3 and 5, optionally, the delivery module 900 includes a mounting cylinder 910, a stop collar 920, a push plate 930, a connecting rod 940, a piston 950, a first resilient member 960, a guide ring 970, and a delivery tube 980. The installation cylinder 910 is installed inside the inner rotor 700 and rotates synchronously with the inner rotor 700, and a cylinder opening of the installation cylinder 910 is located on the outer circumferential surface of the inner rotor 700 and is used for communicating with the gas transmission hole 503. And the plurality of mounting cylinders 910 of the plurality of conveying modules 900 are uniformly spaced in the circumferential direction of the internal rotator 700, for example, in this embodiment, the number of conveying modules 900 is four, and the four mounting cylinders 910 are uniformly spaced. The limiting ring 920 and the guide ring 970 are both fixed in the mounting cylinder 910 and are arranged at intervals in the axial direction of the mounting cylinder 910, and the limiting ring 920 is positioned at one side of the guide ring 970, which is close to the cylinder opening; the push plate 930, the connecting rod 940 and the piston 950 are sequentially and fixedly connected and all the three are slidably arranged in the mounting cylinder 910, the push plate 930 is positioned between the limiting ring 920 and the guide ring 970, the first elastic element 960 is positioned between the push plate 930 and the guide ring 970, one side of the first elastic element 960 is abutted with the guide ring 970, and the other side is abutted with the push plate 930, so that the push plate 930 has a trend of approaching the limiting ring 920; the connecting rod 940 is penetrated in the guide ring 970, and the piston 950 and the mounting cylinder 910 cooperate to define a storage chamber 911; one end of the delivery tube 980 communicates with the reservoir chamber 911 and the other end of the delivery tube 980 communicates with the header 800.

In the initial state, the driving airbag 600 is filled with gas, and is in an inflated state, and the push plate 930 is in contact with the stopper ring 920 by the first elastic member 960, and a fixed amount of liquid is stored in the storage chamber 911. When feeding or medicine feeding is needed, the internal rotator 700 is rotated to drive the mounting cylinder 910 to move, and when the mounting cylinder 910 rotates to a position where the cylinder mouth is aligned with the air delivery hole 503 of the outer cylinder 500, the cylinder mouth is in sealing butt joint with the air delivery hole 503. The first resilient member 960 is compressed by pressing the driving balloon 600, and the gas pushes the push plate 930 to move close to the guide ring 970. Push plate 930 moves together with piston 950 through linkage 940, and movement of piston 950 reduces the volume of reservoir chamber 911, thereby pushing liquid within reservoir chamber 911 from delivery tube 980 into header 800. When the liquid delivery is completed and the sucking of the newborn is completed, the internal swivel 700 is continuously rotated, the original mounting cylinder 910 leaves the air delivery hole 503, the air delivery hole 503 is communicated with the annular ventilation chamber 502, and the external air enters the driving air bag 600 to enable the driving air bag 600 to expand and restore to the initial state. Simultaneously, the nozzle of the mounting cylinder 910 is also communicated with the annular ventilation chamber 502, and under the action of the elastic force of the first elastic piece 960, the push plate 930 is pushed to move towards the limiting ring 920, so that the push plate 930 is in abutting connection with the limiting ring 920 for resetting. When the subsequent mounting tube 910 is rotated to the air delivery hole 503, the operation of the driving airbag 600 is repeated, and the liquid in the new mounting tube 910 can be delivered to the collection tube 800, and then delivered to the accommodating chamber 201 through the collection tube 800.

It should be appreciated that the delivery module 900 can be reused, and when all of the fluid in the delivery module 900 is used, the plunger 950 is lowered to reduce the volume of the reservoir chamber 911, similar to the syringe aspiration principle, by pressing the drive bladder 600. Then one end of the collecting pipe 800 is immersed in the liquid source to be replenished, or the liquid is directly injected into the collecting pipe 800 by adopting a syringe, the driving air bag 600 is loosened, the push plate 930 drives the piston 950 to move upwards to reset under the action of the first elastic element 960, so that the liquid is sucked into the storage chamber 911 by the conveying pipe 980, the liquid replenishment is completed, and the operation is convenient.

Further, a pull ring 993 may be provided at an end surface of the internal rotator 700 so as to apply a force to the pull ring 993 to rotate the internal rotator 700.

Further, the header 800 is rotatably matched with the inner rotor 700, the header 800 has a first port for being inserted into the accommodating cavity 201 and a second port opposite to the first port, the second port is rotatably provided with a collecting tray 820 therein through a third bearing 830, the conveying pipes 980 of the plurality of conveying modules 900 are inserted into the collecting tray 820 and are arranged at intervals in the circumferential direction of the collecting tray 820, and the circumference of the center of the conveying pipes 980 is coaxial with the collecting tray 820.

When the manifold 800 is inserted into the second through hole 301, the manifold 800 is in elastic damping contact with the sealing plate 300, and the manifold 800 cannot rotate relative to the base 100 during feeding, so that stability is improved. When feeding is completed and the collection tube 800 needs to be cleaned, the collection tube 800 can be rotated, so that the cleaning liquid can move better relative to the inner wall of the collection tube 800, and the cleaning effect is improved.

In addition, the third bearing 830 is a sealed bearing, and the collecting tray 820 can be dynamically and hermetically connected with the collecting pipe 800 through the sealed bearing, that is, the collecting tray 820 is flexibly and conveniently rotated and has good sealing effect and is not easy to leak liquid. It should be appreciated that in other embodiments, the manifold 800 may be fixedly coupled to the collection tray 820 such that the inner rotor 700 is capable of rotating the manifold 800 with respect to the outer cylinder 500 without affecting the flow of fluid into the manifold 800 and from the manifold 800 into the receiving chamber 201.

In addition, one or more through holes may be provided at the end of header 800 to facilitate the passage of liquid from header 800 into receiving chamber 201.

Referring to fig. 3, 6 and 7, in other embodiments, optionally, the conveying module 900 further includes a sealing ring 990, a sealing ring 991 and a limiting unit 992; a seal ring 990 is mounted on the inner circumferential surface of the outer cylinder 500 and disposed around the gas delivery hole 503; a seal ring 991 is mounted on the outer peripheral surface of the inner rotor 700 and disposed around the nozzle of the mounting cylinder 910; the limiting unit 992 is mounted on the outer cylinder 500, the limiting unit 992 has a first position and a second position which are mutually switched, and when the limiting unit 992 is positioned at the first position, the limiting unit 992 is positioned on a rotating path of the sealing ring 991 in a set direction and can be abutted with the sealing ring 991 so as to limit the sealing ring 991 at a position abutted with the sealing ring 990 to continuously rotate in the set direction; in the second position, the stopper unit 992 is not on the rotational path of the seal ring 991 in the set direction to release the restriction of the seal ring 991.

So designed, in the initial state, the limiting unit 992 is at the first position, in the process of rotating the internal rotator 700 along the set direction, when one of the mounting cylinders 910 rotates to the set position, that is, when the nozzle of the mounting cylinder 910 aligns with the air delivery hole 503, at this time, the sealing ring 990 aligns with the sealing ring 991, so as to realize the sealing butt joint of the nozzle and the air delivery hole 503, and the sealing ring 991 corresponding to the mounting cylinder 910 also abuts against the limiting unit 992, so that the degree of freedom of the internal rotator 700 continuing to rotate along the set direction is limited, which also indicates that the conveying module 900 has rotated in place, at this time, the driving air bag 600 can be pressed to perform feeding operation, without deliberately searching for the alignment position in the rotating process, thus reducing the operation difficulty, improving the efficiency, and saving time and labor.

When the limit unit 992 is provided, the driving air bag 600 is pressed first in the process of adding liquid to the conveying module 900, when the volume of the storage chamber 911 is reduced, the limit unit 992 is also separated from the position of the blocking sealing ring 991, the driving air bag 600 is not loosened first, the internal swivel 700 is rotated along the set direction, the sealing ring 991 is rotated to the position below the limit unit 992, then the driving air bag 600 is loosened, and the storage chamber 911 can automatically suck liquid for supplementing.

It should be noted that, in the present embodiment, the setting direction is clockwise with reference to the view angle of fig. 6.

It should be appreciated that a portion of the peripheral surface of the seal ring 990 may be configured as an annular bevel 9901, and when the seal ring 991 rotates into contact with the seal ring 990, the seal ring 991 contacts the annular bevel 9901 prior to the seal ring 991, thereby guiding the seal ring 991 to engage with the seal ring 990, avoiding interference, and also extending the service life of the seal ring 990.

Further, the outer cylinder 500 is provided with a bypass hole 504 communicating with the air delivery hole 503 and a mounting hole 505 communicating with the bypass hole 504; the limiting unit 992 comprises a plug 9921, a positioning ring 9922, a second elastic piece 9923, a stress plate 9924, a push rod 9925, a limiting plate 9926 and a sealing body 9927, wherein the plug 9921 can be connected with the outer barrel 500 in a threaded manner and can seal the mounting hole 505; the positioning ring 9922 is installed in the installation hole 505 and is positioned on one side of the bypass hole 504, which is close to the plug 9921; the stress plate 9924, the push rod 9925 and the limiting plate 9926 are sequentially and fixedly connected, the stress plate 9924 is slidably connected with the mounting hole 505, the stress plate 9924 is positioned between the positioning ring 9922 and the plug 9921, the push rod 9925 penetrates through the positioning ring 9922 and extends out of the mounting hole 505, an annular space is defined between the push rod 9925 and the positioning ring 9922, and the limiting plate 9926 is positioned in the annular ventilation cavity 502; the second elastic piece 9923 is installed between the plug 9921 and the force-bearing plate 9924, and is used for enabling the force-bearing plate 9924 to have a movement trend of abutting against the positioning ring 9922; a sealing body 9927 is mounted in the mounting hole 505 for sealing a gap between the push rod 9925 and the mounting hole 505.

When the limit unit 992 is in the first position, the force-receiving plate 9924 abuts against the positioning ring 9922, and the limit plate 9926 is located on a rotational path of the seal ring 991 in the set direction and can abut against the seal ring 991; when the driving airbag 600 is pressed, the force plate 9924 is brought close to the stopper 9921 under the action of air pressure, so that the stopper plate 9926 is not located on the rotation path of the seal ring 991 in the set direction.

In this design, the air bag 600 is driven to perform feeding operation, and the limiting unit 992 can be triggered in a linkage manner, so that the position of the limiting unit 992 is adjusted, after feeding is finished, the internal rotating body 700 can be directly rotated, the new conveying module 900 is adjusted to a position to be fed, the operation steps are simplified, and the operation efficiency is improved. That is, when the driving airbag 600 is pressed, a part of the gas stored in the driving airbag 600 enters the mounting cylinder 910 to push the push plate 930, so that the push plate 930 drives the piston 950 to push the liquid in the storage chamber 911 to the collecting pipe 800, and the rest of the gas stored in the driving airbag 600 enters the mounting hole 505 from the bypass hole 504 to drive the force-bearing plate 9924 to move towards the plug 9921, and further compresses the second elastic member 9923, and simultaneously drives the limiting plate 9926 to retract towards the direction of the mounting hole 505, the limiting plate 9926 is separated from the sealing ring 991, the rotation of the sealing ring 991 is not limited, and the inner rotor 700 can drive the feeding conveying module 900 to rotate away from the gas conveying hole 503. When the driving air bag 600 is released, under the action of the second elastic piece 9923, the stress plate 9924 is far away from the plug 9921, so that the air entering the mounting hole 505 is pushed to the driving air bag 600, the limit plate 9926 is far away from the plug 9921 and then resets, and can be abutted with the sealing ring 991 at the cylinder opening of the mounting cylinder 910 of the new conveying module 900, so that the limiting effect is achieved. It should be noted that, the first elastic member 960 and the second elastic member 9923 may each be provided as a spring.

Further, a portion of the outer peripheral surface of the push rod 9925 is provided as a tapered surface 9928, the tapered surface 9928 is located in the air outlet direction of the bypass hole 504 toward the mounting hole 505, and an end of the tapered surface 9928 with a smaller inner diameter is close to the force-receiving plate 9924 than an end of the tapered surface 9928 with a larger inner diameter, so that the tapered surface 9928 can guide air entering the mounting hole 505 from the bypass hole 504 to move toward the force-receiving plate 9924, and further guide the force-receiving plate 9924 to move close to the plug 9921.

It should be noted that, after the driving airbag 600 is pressed, the air enters the mounting hole 505, the air is directly blocked by the tapered surface 9928, and the air quickly contacts the surface of the force-bearing plate 9924, which is far away from the plug 9921, along the tapered surface 9928 from bottom to top, so as to quickly drive the force-bearing plate 9924 to move towards the plug 9921, the push plate 930 moves more flexibly, and the operation of the driving airbag 600 is more labor-saving.

The auxiliary feeding device provided by the embodiment can realize quantitative conveying for a plurality of times, and is beneficial to healthy feeding or medicine feeding of newborns and the like.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An auxiliary feeding device for feeding or dosing a neonate or infant, the feeding device comprising:

The nipple feeding device comprises a multiple quantitative feeding mechanism (002) and a nipple for a newborn, a base (100), a sucking nozzle (200), a sealing plate (300) and a switch plate (400); the base (100) is provided with an assembly hole (101) and a first through hole (102); the sucking mouth (200) is provided with a containing cavity (201) and a sucking hole (202) communicated with the containing cavity (201), the sucking mouth (200) is arranged on the base (100) and the containing cavity (201) is communicated with the first through hole (102); the sealing plate (300) is provided with a second through hole (301), the sealing plate (300) is installed in the assembly hole (101), and the second through hole (301) is communicated with the first through hole (102); the switch plate (400) is movably connected with the sealing plate (300), and the switch plate (400) is used for opening or closing the second through hole (301);

The multiple quantitative feeding mechanism (002) is detachably connected with the base (100) of the nipple of the newborn, and the multiple quantitative feeding mechanism (002) is used for quantitatively feeding or medicine for the newborn or the infant in an intermittent mode through the sucking holes (202);

The multiple ration feeding mechanism comprises an outer cylinder (500), a driving air bag (600), an inner rotating body (700), a collecting pipe (800) and a plurality of conveying modules (900); the outer cylinder (500) is provided with a rotating inner cavity (501) and a gas transmission hole (503) communicated with the rotating inner cavity (501), and the outer cylinder (500) is detachably connected with the base (100); the driving air bag (600) is arranged on the outer side of the outer cylinder (500) and is communicated with the air delivery hole (503); the inner rotating body (700) is rotatably arranged in the rotating inner cavity (501), and an annular ventilation cavity (502) communicated with the outside is formed between the outer peripheral wall of the inner rotating body (700) and the inner peripheral wall of the outer cylinder (500); the collecting pipe (800) is connected with the inner rotating body (700), and the collecting pipe (800) is used for being simultaneously arranged in the first through hole (102) and the second through hole (301) in a penetrating mode and can be communicated with the accommodating cavity (201); each of the plurality of delivery modules (900) has a storage chamber (911) for storing a liquid, the plurality of delivery modules (900) are each connected to the inner rotor (700) and are arranged at circumferentially spaced intervals of the inner rotor (700), and the storage chambers (911) of the plurality of delivery modules (900) are each in communication with the header (800);

when the inner rotor (700) rotates relative to the outer cylinder (500), the storage chambers (911) of the plurality of conveying modules (900) can sequentially correspond to the air conveying holes (503), and pressing the driving air bag (600) can reduce the volume of the corresponding storage chambers (911) so that liquid in the storage chambers (911) enters the collecting pipe (800).

2. The auxiliary feeding apparatus of claim 1, wherein:

The switch plate (400) is rotatably engaged with the sealing plate (300) such that the switch plate (400) can open or close the second through hole (301).

3. The auxiliary feeding apparatus of claim 1, wherein:

The assembly hole (101) is provided as a threaded hole.

4. The auxiliary feeding apparatus of claim 1, wherein:

The conveying module (900) comprises a mounting cylinder (910), a limiting ring (920), a push plate (930), a connecting rod (940), a piston (950), a first elastic piece (960), a guide ring (970) and a conveying pipe (980), wherein the mounting cylinder (910) is mounted inside the inner rotating body (700) and synchronously rotates with the inner rotating body (700), a cylinder opening of the mounting cylinder (910) is positioned on the peripheral surface of the inner rotating body (700), and the cylinder opening is used for being communicated with the gas conveying hole (503); the limiting rings (920) and the guide rings (970) are fixed in the mounting cylinder (910) and are distributed at intervals in the axial direction of the mounting cylinder (910), and the limiting rings (920) are positioned on one side of the guide rings (970) close to the cylinder opening; the push plate (930), the connecting rod (940) and the piston (950) are sequentially and fixedly connected and are slidably arranged in the mounting cylinder (910), the push plate (930) is positioned between the limiting ring (920) and the guide ring (970), the first elastic piece (960) is positioned between the push plate (930) and the guide ring (970), one side of the first elastic piece (960) is abutted with the guide ring (970), and the other side of the first elastic piece is abutted with the push plate (930), so that the push plate (930) has a trend of approaching the limiting ring (920); the connecting rod (940) penetrates through the guide ring (970), and the piston (950) and the mounting cylinder (910) are matched to define the storage chamber (911); one end of the delivery pipe (980) is communicated with the storage chamber (911), and the other end of the delivery pipe (980) is communicated with the collecting pipe (800).

5. The auxiliary feeding apparatus of claim 4, wherein:

The collecting pipe (800) is matched with the inner rotating body (700) in a rotatable mode, the collecting pipe (800) is provided with a first port used for being inserted into the accommodating cavity (201) and a second port opposite to the first port, a collecting disc (820) is rotatably installed in the second port, conveying pipes (980) of the conveying modules (900) are inserted into the collecting disc (820) and are distributed at intervals in the circumferential direction of the collecting disc (820), and the circumference of the center of each conveying pipe (980) is coaxial with the circumference of the corresponding collecting disc (820).

6. The auxiliary feeding apparatus of claim 4, wherein:

The conveying module (900) further comprises a sealing ring (990), a sealing ring (991) and a limiting unit (992); the sealing ring (990) is arranged on the inner peripheral surface of the outer cylinder (500) and surrounds the air delivery hole (503); the sealing ring (991) is mounted on the outer peripheral surface of the inner rotor (700) and is arranged around the nozzle of the mounting cylinder (910); the limiting unit (992) is mounted on the outer cylinder (500), the limiting unit (992) is provided with a first position and a second position which are mutually switched, and when the limiting unit (992) is positioned at the first position, the limiting unit (992) is positioned on a rotating path of the sealing ring (991) in a set direction and can be abutted with the sealing ring (991) so as to limit the sealing ring (991) at a position abutted with the sealing ring (990) to continuously rotate in the set direction; when in the second position, the limit unit (992) is not located on the rotation path of the seal ring (991) in the setting direction so as to release the limit of the seal ring (991).

7. The auxiliary feeding apparatus of claim 6, wherein:

the outer cylinder (500) is provided with a bypass hole (504) communicated with the gas transmission hole (503) and a mounting hole (505) communicated with the bypass hole (504);

The limiting unit (992) comprises a plug (9921), a positioning ring (9922), a second elastic piece (9923), a stress plate (9924), a push rod (9925), a limiting plate (9926) and a sealing body (9927), wherein the plug (9921) is connected with the outer barrel (500) and seals the mounting hole (505); the positioning ring (9922) is arranged in the mounting hole (505) and is positioned at one side of the bypass hole (504) close to the plug (9921); the force bearing plate (9924), the push rod (9925) and the limiting plate (9926) are sequentially and fixedly connected, the force bearing plate (9924) is slidably connected with the mounting hole (505), the force bearing plate (9924) is positioned between the positioning ring (9922) and the plug (9921), the push rod (9925) is arranged in the positioning ring (9922) in a penetrating mode and extends out of the mounting hole (505), an annular space is defined between the push rod (9925) and the positioning ring (9922), and the limiting plate (9926) is positioned in the annular ventilation cavity (502); the second elastic piece (9923) is arranged between the plug (9921) and the stress plate (9924) and is used for enabling the stress plate (9924) to have a movement trend of abutting against the positioning ring (9922); the sealing body (9927) is arranged in the mounting hole (505) and is used for sealing a gap between the push rod (9925) and the mounting hole (505);

When the limiting unit (992) is in a first position, the force-bearing plate (9924) is abutted with the positioning ring (9922), and the limiting plate (9926) is positioned on a rotating path of the sealing ring (991) in a set direction and can be abutted with the sealing ring (991); when the driving air bag (600) is pressed, the stress plate (9924) is close to the plug (9921) under the action of air pressure, so that the limiting plate (9926) is not positioned on the rotating path of the sealing ring (991) in the set direction.

8. The auxiliary feeding apparatus of claim 7, wherein:

The part of the outer peripheral surface of the push rod (9925) is provided with a conical surface (9928), the conical surface (9928) is positioned in the air outlet direction of the bypass hole (504) towards the mounting hole (505), one end of the conical surface (9928) with smaller inner diameter is close to the stress plate (9924) compared with one end of the conical surface (9928) with larger inner diameter, so that the conical surface (9928) can guide air entering the mounting hole (505) from the bypass hole (504) to move towards the stress plate (9924), and further guide the stress plate (9924) to move close to the plug (9921).