CN112295029A - Suction hood and breast pump comprising same - Google Patents

Abstract

The invention discloses a suction hood and a breast pump, wherein the suction hood comprises an exhaust connector and a hood body which are integrally made of silica gel, the hood body is provided with an opening end and a sealing end which are oppositely arranged, the sealing end is provided with a through hole, the exhaust connector is connected with the sealing end, a channel for exhausting air and outputting milk is arranged in the exhaust connector in a penetrating way, the channel is communicated with the through hole, one end of the exhaust connector, which is far away from the sealing end, is used for connecting a conveying pipe, the hood body comprises a fitting ring and an acting ring which are sequentially connected between the opening end and the sealing end, the fitting ring is used for fitting a breast, the acting ring and the sealing end form an acting part, and the acting part deforms under the air exhausting action of the exhaust. The suction hood disclosed by the invention is simple in structure, good in sealing performance and high in fitting degree, and can be effectively prevented from falling off from breasts.

Description

Suction hood and breast pump comprising same

Technical Field

The invention relates to the technical field of mother and infant articles, in particular to a suction hood and a breast pump comprising the same.

Background

The structures of breast pumps available on the market at present can be roughly divided into two categories: manual and electric.

The conventional manual breast pump mostly comprises a connecting tee joint, a breast shield and a pressing handle, wherein the breast shield is used for covering breasts of a user, the breast shield is connected to one interface of the connecting tee joint, the other interface of the connecting tee joint is used for installing the pressing handle, the rest interface is used for connecting a feeding bottle, when the manual breast pump is used, the feeding bottle is installed on the connecting tee joint, the breast shield is covered on the breasts of the user, the pressing handle is operated to continuously pump out air in the breast shield, so that negative pressure is formed in the breast shield to squeeze the breasts, and milk in the breasts is squeezed. The prior manual breast pump has the following defects: 1. generally, in order to enable the milk suction cover to be well connected with the connecting tee joint, the milk suction cover is made of hard plastic, the hard plastic is directly attached to a human body and is very uncomfortable, in order to improve comfort, a silica gel layer is attached to the inner portion of the milk suction cover to isolate skin and the hard plastic, but the whole appearance is unchangeable, the shapes and sizes of breasts of different users are different, the sizes of the breasts of the same person before and after milk suction are greatly changed, the shape of the milk suction cover cannot be automatically changed and the shape of the breast can not be attached to the breast in the later stage of milk suction, poor sealing performance is easy to occur, and the milk suction effect is influenced; 2. the spare part structure is complicated, need set up and connect the tee bend and press the handle, has increased the degree of difficulty of equipment, washing and disinfection.

The electric breast pump comprises a host (air pump), a connecting tee joint and a breast shield, wherein the existing connecting tee joint and the breast shield are integrated, an air suction opening of the host is communicated with the connecting tee joint through an air pipe, before the electric breast pump is used, all accessories are required to be assembled as required and then connected with a milk bottle, the electric breast pump is fixed on a breast in a handheld mode or under the assistance of a breast-feeding bra, a power supply of the host is turned on, and the electric breast pump starts to generate suction and enters a breast-sucking process. The prior electric breast pump has the following defects: 1. if any one of the accessories is damaged or fails, the electric breast pump can not achieve the normal breast pumping effect; 2. the number of accessories is large, the assembly is complicated before use, more time is occupied for a user, the cleaning is time-consuming after use, the volume of the connecting tee joint is small, sanitary dead angles are easy to occur, bacteria are generated, and health hidden dangers exist; 3. the breast shield is mainly made of PP (polypropylene), has hard texture and no deformation effect, is easy to impact the breasts of a user, is difficult to attach to the breasts of different women, is easy to generate gaps, has air leakage phenomenon and has poor breast absorption effect; 4. the electric drive can not be started and stopped at any time, and if the stop button is forgotten to be pressed when the breasts are sucked, the breasts are easily damaged, and the breasts can be seriously bled and the like.

In addition, there is also a silica gel breast pump on the market, which comprises a breast pump head, a bottle neck and a bottle body, and these three parts are usually formed by an integral forming manufacturing method. Whether the perfect fit effect of the silica gel breast pump with the breast can be achieved mainly depends on: the suction force and the fit degree of the breast pump head and the breast. The design width of the present milk sucker head of the silica gel milk sucker is 6-10 cm, the bottle body capacity is 90-150 ml, the edge part of the milk sucker head of the structure excessively pursues a skin-friendly design, so a single-layer silica gel design is adopted, the effect is thin, in the using process, because of breast milk secretion, the suction force of the milk sucker head can be reduced along with the weight increase of the milk sucker, or the contact surface of the milk sucker leaks due to the deformation of a breast after milk is squeezed out, or a user does not use the silica gel milk sucker in a correct mode, the improper operation is caused, and the situation that the milk sucker head is separated from the breast to enable the silica gel milk sucker to fall off is easy to occur.

Disclosure of Invention

One object of an embodiment of the present invention is to: provided is a suction hood which has a simple structure, good sealing properties, and high fitting properties, and which can effectively prevent the breast from falling off.

Another object of an embodiment of the present invention is to: provides a breast pump which has few parts, simple operation, high fitting degree with the breast and uneasy falling off.

To achieve the purpose, the embodiment of the invention adopts the following technical scheme:

the first aspect provides a suction hood, including the exhaust connector and the cover body that adopt the integrative preparation shaping of silica gel, the cover body has relative open end and the seal end that sets up, the through-hole has been seted up to the seal end, the exhaust connector is connected the seal end, run through being provided with in the exhaust connector and bleed and supplying the passageway of milk output, the passageway with the through-hole intercommunication, the exhaust connector is kept away from the one end of seal end is used for connecting the conveyer pipe, the cover body is including connecting gradually laminating ring sum acting ring between open end and the seal end, laminating ring annular laminating is in the week portion of breast, the acting ring with the seal end is constituteed the acting portion, acting portion is in the effect of bleeding of exhaust connector is out of shape down and is realized inhaling the milk operation.

As a preferred scheme of suction hood, the exhaust connector is including being first connecting portion and the second connecting portion that the contained angle set up, first connecting portion are kept away from the one end of second connecting portion with the seal end is connected, the second connecting portion are kept away from the one end of first connecting portion is used for connecting the conveyer pipe, the passageway is including the first passageway and the second passageway that are the contained angle intercommunication, the first passageway is located in the first connecting portion with the through-hole intercommunication, the second passageway set up in be used for the intercommunication in the second connecting portion the first passageway with the conveyer pipe.

As a preferable mode of the suction hood, an angle between the first connection portion and the second connection portion is not more than 90 degrees.

As a preferable scheme of the suction hood, one end of the attaching ring, which is far away from the acting ring, is connected with a sealing ring, the sealing ring is provided with a first sealing surface located on the end surface of the opening end and a second sealing surface located on the inner side wall of the hood body, and the first sealing surface and the second sealing surface are arranged at an included angle.

As a preferable mode of the suction hood, the second sealing surface is inclined toward the inside of the hood body from the first sealing surface, and the first sealing surface and the second sealing surface are arranged at an obtuse angle.

As a preferable mode of the suction hood, an outer surface of the seal ring is an inclined surface which is inclined inward from the open end toward the fitting ring.

As a preferred scheme of the suction hood, the outer diameter of the sealing ring is not more than 80mm, and the depth is 5-10 mm.

As a preferred embodiment of the suction hood, the thickness of the power ring is greater than the thickness of the engagement ring.

As a preferable scheme of the suction hood, the cross section of the fitting ring is arc-shaped, and the fitting ring is protruded toward the outside of the hood body.

As a preferable scheme of the suction hood, the section of the working ring is arc-shaped, and the working ring is convexly arranged towards the inside of the hood body; or the section of the acting ring is rectangular.

Preferably, the inner surface of the sealing end is a slope inclined toward the through hole.

Preferably, the suction hood has a center of the through hole spaced from a center of the sealing end.

As a preferable scheme of the suction hood, the joint of the acting ring and the fit ring adopts circular arc transition; and/or the acting ring and the sealing end adopt circular arc transition.

As a preferable scheme of the suction hood, the inner diameter of the acting ring is 30-50 cm.

As a preferable scheme of the suction hood, the inner diameter of the jointing ring is 60-80 cm.

As a preferable scheme of the suction hood, the suction hood is integrally manufactured and molded by using 65-70-degree silica gel.

The second aspect provides a breast pump, including collection feeding bottle and bottle lid, the setting can be dismantled to the bottle lid is in the bottleneck of collection feeding bottle, collection feeding bottle with the bottle lid all adopts deformable material to make, its characterized in that still includes the suction cover, the air inlet has been seted up on the bottle lid, the air inlet passes through duct connection the exhaust connector of suction cover.

As a preferred scheme of breast pump, the air inlet is provided with the intake pipe, intake pipe one end extends to outside the bottle lid with the connection can be dismantled to the conveyer pipe, the other end extends to can dismantle in the bottle lid and be connected with first check valve, first check valve control gas or liquid only can by intake-tube connection the one end orientation of conveyer pipe the inside transport of collection feeding bottle.

As a preferable scheme of the breast pump, an air outlet is formed in the bottle cap, a second one-way valve is arranged at the air outlet, and the second one-way valve controls gas or liquid to be conveyed from the inside of the milk collecting bottle to the outside of the milk collecting bottle only.

The embodiment of the invention has the beneficial effects that: through adopting the suction cover silica gel integrated into one piece, can simplify the spare part quantity of suction cover, reduce the equipment, wash and the disinfection degree of difficulty, the suction cover that silica gel was made simultaneously, can utilize the soft and elastic characteristics that are rich of silica gel, use under the breast size's of different chest types the condition, suction is produced the back, the laminating ring is through the shrink, produce a fixed effect to the breast, prevent that the suction cover from breaking away from the breast, and do work ring and seal end constitute the portion of doing work jointly, the portion of doing work forms sealed space behind the laminating ring laminating breast, do work portion can realize warping effectively under the suction effect, and then suck the milk operation effectively.

Drawings

The invention is explained in more detail below with reference to the figures and examples.

Fig. 1 is a perspective view schematically showing a suction hood according to an embodiment of the present invention.

Fig. 2 is a schematic cross-sectional view of an extraction hood according to an embodiment of the invention.

Fig. 3 is a schematic front view of a suction hood according to an embodiment of the present invention.

Fig. 4 is a perspective view of a breast pump according to an embodiment of the present invention from a first perspective.

Fig. 5 is a perspective view of a breast pump according to an embodiment of the present invention from a second perspective.

Fig. 6 is a first perspective view of the bottle cap according to the embodiment of the present invention.

Fig. 7 is a perspective view of a bottle cap according to an embodiment of the present invention from a second perspective.

Fig. 8 is a perspective view of a first check valve according to an embodiment of the present invention.

Fig. 9 is a perspective view of a first check valve according to an embodiment of the present invention from a second perspective.

FIG. 10 is a schematic structural diagram of a three-way pipe according to an embodiment of the invention.

In the figure:

1. a suction hood; 11. an exhaust connector; 111. a channel; 1111. a first channel; 1112. a second channel; 112. a first connection portion; 113. a second connecting portion; 12. a cover body; 121. sealing the end; 122. a through hole; 123. fitting a ring; 124. a power application ring; 125. a seal ring; 1251. a first sealing surface; 1252. a second sealing surface; 1253. an inclined surface;

2. a delivery pipe; 3. a milk collecting bottle; 4. a bottle cap; 41. a cover body; 42. a fixing ring; 5. an air inlet pipe; 51. an external thread; 6. a first check valve; 61. an internal thread; 7. a second one-way valve; 8. a three-way pipe; 81. a first interface; 82. a second interface; 83. and a third interface.

Detailed Description

In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1 to 10, an embodiment of the present invention provides a suction hood 1, which is mainly used for a manual breast pump, the breast pump includes a milk collecting bottle 3 and a bottle cap 4, the bottle cap 4 is hermetically mounted on a bottle mouth of the milk collecting bottle 3, the suction hood 1 is communicated with the interior of the milk collecting bottle 3 through a conveying pipe 2, the milk collecting bottle 3 is made of a flexible material (such as silicone), the milk collecting bottle 3 is squeezed, and air in the suction hood 1 can be sucked out, so as to achieve a milking operation.

As shown in fig. 1 to 3, a suction hood 1 provided in an embodiment of the present invention includes an exhaust connector 11 and a hood body 12 integrally formed by silica gel, the hood body 12 has an opening end and a sealing end 121 oppositely disposed, the sealing end 121 is provided with a through hole 122, the exhaust connector 11 is connected to the sealing end 121, a channel 111 for exhausting air and outputting milk is disposed in the exhaust connector 11, the channel 111 is communicated with the through hole 122, one end of the exhaust connector 11 away from the sealing end 121 is used for connecting the delivery pipe 2, the hood body 12 includes a joint ring 123 and a working ring 124 sequentially connected between the opening end and the sealing end 121, the joint ring 123 is annularly jointed to the periphery of the breast, the working ring 124 and the sealing end 121 constitute a working portion, and the working portion deforms under the air exhausting effect of the exhaust connector 11 to achieve milk suction operation. Through adopting the integrated into one piece shaping of silica gel with suction hood 1, can simplify the spare part quantity of suction hood 1, reduce the equipment, wash and the disinfection degree of difficulty, suction hood 1 that silica gel was made simultaneously, can utilize the soft and elastic characteristics that are rich of silica gel, use under the condition of the breast size of different chest types, after suction was produced, laminating ring 123 is through the shrink, produce a fixed effect to the breast, prevent that suction hood 1 from breaking away from the breast, do work ring 124 and seal end 121 constitute the portion of doing work jointly, the portion of doing work forms sealed space behind laminating ring 123 laminating breast, do work portion can realize deforming effectively under the suction effect, and then carry out the operation of suckleing effectively.

In an embodiment, the exhaust connector 11 includes a first connection portion 112 and a second connection portion 113 disposed at an included angle, an end of the first connection portion 112 away from the second connection portion 113 is connected to the sealing end 121, an end of the second connection portion 113 away from the first connection portion 112 is used for connecting the delivery pipe 2, the channel 111 includes a first channel 1111 and a second channel 1112 connected at an included angle, the first channel 1111 is disposed in the first connection portion 112 and is connected to the through hole 122, and the second channel 1112 is disposed in the second connection portion 113 and is used for connecting the first channel 1111 and the delivery pipe 2. Through setting up exhaust connector 11 to the structure that is two connecting portions of contained angle, can reduce exhaust connector 11 and occupy the space on whole suction hood 1 thickness direction, increased the usage space of suction hood 1, also can reduce simultaneously with the deformation of the conveyer pipe 2 that exhaust connector 11 is connected and take place the condition of folding.

In the present embodiment, an included angle between the first connection portion 112 and the second connection portion 113 is not greater than 90 degrees. The design can form the exhaust connector 11 similar to an L shape, so that the second connecting part 113 connected with the conveying pipe 2 can keep a relatively parallel state with the sealing end 121 of the hood body 12, and further, when the whole suction hood 1 is used at any angle, the connected conveying pipe 2 can keep the same vertical or clockwise direction, the conveying pipe is prevented from being deformed and folded, the occupied area of the exhaust connector 11 in the thickness direction of the suction hood 1 can be reduced to the minimum, and the use space of the suction hood 1 is increased.

Specifically, the first connection portion 112 of the exhaust connector 11 is perpendicular to the second connection portion 113.

In this embodiment, the first connecting portion 112 is tapered, the large end thereof is connected to the sealing end 121, the small end is sealed, the sidewall of the first connecting portion 112 is connected to the second connecting portion 113 adjacent to the small end thereof, the second connecting portion 113 is divided into two parts, the first part is tapered, the large end of the first part is fixed to the sidewall of the first connecting portion 112, the small end of the first part is connected to the second part, the diameter of the second part is smaller than that of the small end of the first part, annular recesses are arranged on the second part at intervals along the length direction thereof, and the recesses are used for fixing the end of the conveying pipe 2 to the second part.

In one embodiment, a sealing ring 125 is connected to an end of the apply ring 123 away from the apply ring 124, the sealing ring 125 having a first sealing surface 1251 located at an end face of the open end of the enclosure body 12 and a second sealing surface 1252 located at an inner sidewall of the enclosure body 12, the first sealing surface 1251 and the second sealing surface 1252 being disposed at an angle. In an initial state, the suction hood 1 covers the breast, the second sealing surface 1252 of the sealing ring 125 is attached to the breast, at the moment, the first sealing surface 1251 is not attached to the breast, suction is started to suck the suction hood 1 for milk suction, the breast deforms after milk suction, due to the fact that the second sealing surface 1252 is moved and pulls the first sealing surface 1251 to attach to the breast and secondary absorption is achieved due to the fact that the whole continuity of the sealing ring 125 and the back-pulling force generated by the partition surface formed by the attaching ring 123 and the sealing ring 125, the suction hood 1 is guaranteed to be still attached to the breast, the suction hood 1 is effectively prevented from falling off, sealing effect is good, and milk squeezing operation cannot be affected. In addition, the angled V-shaped configuration of the first and second seal surfaces 1251, 1252 may completely conform to breasts of different breasts when in use.

Specifically, second seal surface 1252 is sloped toward the interior of closure body 12 from first seal surface 1251, first seal surface 1251 being disposed at an obtuse angle to second seal surface 1252. This design forms towards the protruding sealing washer 125 of the V type structure of establishing of cover body 12 inside, can strengthen sealed effect, and first sealed face 1251 is the obtuse angle setting with the sealed face 1252 of second and can form two slow continuous sealed faces, and sealed effect is very good.

In this embodiment, the outer surface of the sealing ring 125 is an inclined surface 1253, and the inclined surface 1253 is inclined inwardly from the open end toward the abutment ring 123. The thickness of sealing washer 125 can be increased in this design, guarantees that sealing washer 125 has certain intensity in order to promote the canned type and laminating compactness.

Specifically, the outer diameter of the sealing ring 125 is not more than 80mm, and the depth is 5-10 mm.

In one embodiment, the thickness of the power ring 124 is greater than the thickness of the mating ring 123. The design can increase the strength (i.e. rigidity) of the acting ring 124, ensure that the acting ring 124 has enough resilience (i.e. can generate large deformation), and improve the suction force of the suction hood 1.

When suction is generated, the acting part can generate the maximum deformation effect, the larger the deformation range is, the more sufficient the suction is, the large-amplitude deformation effect of the acting part enables the breast milk sucking device to be used on breasts with different breast shapes, the completely sealed effect is achieved, the breast milk sucking device is firmly adsorbed on the breasts in the milk sucking process, and the milk sucking efficiency is kept at an efficient and stable level.

In this embodiment, the cross section of the joint ring 123 is arc-shaped, and the joint ring 123 protrudes toward the outer portion of the cover body 12. The design can be convenient for increasing the accommodating space of the fitting ring 123, and also conforms to the deformation rule of the human breast, thereby being convenient for fitting the breast.

In this embodiment, the power ring 124 has a rectangular cross-section. In other embodiments, the cross-section of the power ring 124 may be curved, and the power ring 124 may be protruded toward the inside of the casing body. This design is convenient for form the extrusion position in the outside of suction hood 1, guarantees that the extrusion operation can go on smoothly, and simultaneously, the integrated configuration of the interior concave acting ring 124 and the laminating ring 123 of evagination still in order to increase whole suction hood 1's intensity, guarantees the laminating effect of laminating ring 123 and the deformation effect of acting ring 124.

In one embodiment, the inner surface of the sealing end 121 is a slope inclined toward the through hole 122. This design can form the water conservancy diversion to milk, and the milk of being convenient for can smoothly enter into through-hole 122.

In the present embodiment, the center of the through hole 122 is spaced apart from the center of the sealing end 121. Specifically, the center of the through hole 122 is located below the center of the sealing end 121, which is convenient for receiving milk, and the breast of a woman in lactation usually drops due to physiological reasons, so the design is designed to match the nipple position of the breast, so that the milk ejected from the nipple can be accurately ejected into the through hole 122, and the milk can be prevented from remaining in the cover body 12 of the suction cover 1 as much as possible.

Specifically, the joint of the working ring 124 and the fitting ring 123 adopts circular arc transition; and/or the acting ring 124 and the sealing end 121 adopt circular arc transition. This design can guarantee that suction cover 1 inner wall is smooth, promotes the travelling comfort.

In the embodiment, the inner diameter of the power ring 124 is 30-50 cm, and the inner diameter of the bonding ring 123 is 60-80 cm. The design can form the suction hood 1 with the design height of 40-55 mm and the width of 70-80 mm, the design weight of the suction hood 1 is 20-28.5 g, and the suction hood 1 only squeezes milk but does not store milk, so the downward pulling force applied to the breast by the suction hood 1 is small, and a user feels very comfortable in use and does not pull the breast to deform.

In one embodiment, the suction hood 1 is integrally formed by 65-70 degrees of silicone. The silica gel material has elasticity, and the characteristics of the silica gel material determine that the higher the rigidity of the silica gel material is, the larger the resilience is, the weaker the rigidity is, and the smaller the resilience is. The following comparison was made on the principle that silica gel can recover its original appearance after extrusion:

three groups of silica gel with different hardness are arranged, respectively: the hardness is 25-64 degrees, the hardness is 65-70 degrees and the hardness is 71-90 degrees, and the evaluation results are as follows:

(1) the suction hood 1 is made of silica gel with the hardness of 25-64 degrees, the rigidity of the suction hood 1 is weak, the acting part of the suction hood 1 is small in rebound effect and weak in suction force, and the suction force is insufficient to support the efficient adsorption effect. Through practical tests, the effects are that the milk output is 1-3 drops/second, the suction is small, and the milk collecting speed is too low. In addition, the work applying portion of the suction hood 1 having such hardness has a small deformation effect and a short rebound interval, so that the sealing ring 125 is not highly attached to the breast, and the breast is easily deflated and falls off from the breast.

(2) The rigidity of the suction hood 1 is enhanced by adopting the silica gel material with the silica gel hardness of 71-90 degrees, the rebound effect of the acting part of the suction hood 1 is increased, the suction force is enhanced, and the suction force has enough suction force to support the efficient adsorption effect. Through practical tests, the breast milk yield is 8-12 drops/second, but the suction force is too large, the breast is easy to discomfort, the breast of a user is painful, and after the hardness of the silica gel reaches 71 degrees, the suction cover 1 becomes brittle, the outer layer of the silica gel cracks and the finished product is fragile, so that the durability of the product is greatly reduced.

(3) The hardness of the embodiment is adopted, namely the silica gel hardness is 65-70 degrees, the shape of the acting part of the suction hood 1 is enlarged, the resilience force is strong, the suction force is moderate, the attaching degree of the attaching ring 123 and the breast is high, the air leakage condition of the suction hood 1 is not found, and the falling condition of the suction hood 1 from the breast is not found. Through practical tests, the effect is that the milk output is 4-6 drops/second, and the milk sucking work is carried out in the state, so that the high efficiency of the milk sucking is kept, and the user can feel comfortable during the milk sucking.

As shown in fig. 4 to 10, an embodiment of the present invention further provides a breast pump, which includes a milk collecting bottle 3 and a bottle cap 4, wherein the bottle cap 4 is detachably disposed at a bottle opening of the milk collecting bottle 3, the milk collecting bottle 3 and the bottle cap 4 are both made of a silica gel material, the breast pump further includes the suction hood 1 according to any of the above embodiments, and a specific structure of the suction hood 1 is not described herein again. The bottle cap 4 is provided with an air inlet which is connected with an exhaust connector 11 of the suction hood 1 through a conveying pipe 2. The milk collecting bottle 3 made of silica gel material can realize extrusion deformation so as to suck air in the suction hood 1, ensure that milking operation can be normally carried out, and simultaneously milk can be sucked into the milk collecting bottle 3 to be accumulated. The entire breast pump includes four major components: suction cover 1, conveyer pipe 2, collection feeding bottle 3 and bottle lid 4, when the equipment, spare part is few, the equipment and abluent degree of difficulty have been reduced, manual extrusion collection feeding bottle 3 provides power for sucking the milk action simultaneously, can accomplish to stop at any time, prevent that user's breast from being lasted the suction when the milk evacuation, guarantee that the breast is not hurt, and, do not need power or electric wire, do not have the noise, this is the breast pump that a user need not hide or cover when sucking the milk. In addition, the suction hood 1 of the breast pump is only used for sucking milk, does not store milk, has good adsorption effect, can be continuously attached to the breasts of a user, liberates the hands of the user, and can be used in any situation at any place, such as driving, shopping, walking or lying down.

In this embodiment, the air inlet is provided with intake pipe 5, and 5 one end of intake pipe extends to bottle lid 4 outward and can dismantle with conveyer pipe 2 and be connected, and the other end extends to can dismantle in the bottle lid 4 and is connected with first check valve 6, and first check valve 6 control is gaseous or liquid can only be connected the one end of conveyer pipe 2 by intake pipe 5 and is carried towards the inside of collection feeding bottle 3. Through setting up first check valve 6, can effectively avoid inhaling in the milk of conveyer pipe 2 flows back suction cover 1 in, can also avoid the air to flow back suction cover 1 simultaneously in, influence suction cover 1's leakproofness, guarantee that suction cover 1 can both be in the state of laminating the breast all the time.

Specifically, the air inlet pipe 5 is provided with an external thread 51 at one end arranged on the inner side of the bottle cap, the first check valve 6 is provided with an internal thread 61, and the first check valve 6 can be screwed on the air inlet pipe 5. The mode of screw connection is convenient for the dismouting of intake pipe 5 and first check valve 6.

In this embodiment, the bottle cap 4 is provided with an air outlet, the air outlet is provided with a second one-way valve 7, and the second one-way valve 7 controls the air or liquid to be transported from the inside of the milk collecting bottle 3 to the outside of the milk collecting bottle 3. By providing the second check valve 7, air outside the milk collecting bottle 3 can be prevented from entering the milk collecting bottle 3, ensuring that the milking operation can be smoothly performed.

Specifically, the bottle cap 4 includes a cap body 41 and a fixing ring 42 annularly provided on a peripheral portion of the cap body 41, and an inner side wall of the fixing ring 42 is provided with a thread structure to be screwed on a mouth of the milk collecting bottle 3. The cap body 41 and the fixing ring 42 can be an integral structure or a split structure, and when the cap body 41 and the fixing ring 42 are formed by split manufacturing, the fixing ring 42 can be made of silica gel or plastic with higher strength, so that the bottle cap 4 can be connected with the feeding bottle 3 conveniently.

The breast pump can suck milk on one side or synchronously suck milk on two sides. As shown in fig. 4 and 5, when the breast pump is used for single-sided pumping, only one delivery pipe 2 is provided, one end of the delivery pipe 2 is connected with the air inlet pipe 5 on the bottle cap 4, and the other end is connected with the exhaust connector 11 of the suction hood 1. When the breast pump sucks milk from two sides, three conveying pipes 2 are arranged, wherein one conveying pipe 2 is used for connecting the air inlet pipe 5 and the first connector 81 of the three-way pipe 8, the other two conveying pipes 2 are respectively connected with the second connector 82 and the third connector 83, and one ends, far away from the three-way pipe 8, of the second connector 82 and the third connector 83 are respectively connected with the suction hood 1.

Of course, the breast pump is not limited to the above-described number of suction hoods 1, and three or more suction hoods 1 may be connected, and in this case, the breast pump may be applied to sucking of animals other than human milk.

In addition, the number of the air inlet pipes 5 can be directly increased on the bottle cap 4 to connect the corresponding number of the suction hoods 1 without being limited to the connection of the two suction hoods 1 by the three-way pipe 8.

In the description herein, it is to be understood that the terms "upper" and the like are based on the orientation or positional relationship shown in the drawings, which are for convenience of description and simplicity of operation, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present invention.

In the description herein, references to the term "an embodiment" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be appropriately combined to form other embodiments as will be appreciated by those skilled in the art.

The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.

Claims (19)

1. The utility model provides a suction hood, its characterized in that, includes the exhaust connector and the cover body that adopt the integrative preparation shaping of silica gel, the cover body has the relative open end and the seal end that sets up, the through-hole has been seted up to the seal end, the exhaust connector is connected the seal end, run through being provided with in the exhaust connector and bleed and supply the passageway of milk output, the passageway with the through-hole intercommunication, the exhaust connector is kept away from the one end of seal end is used for connecting the conveyer pipe, the cover body is including connecting gradually laminating ring sum acting ring between open end and the seal end, laminating ring annular laminating is in the week portion of breast, the acting ring with the seal end is constituteed the acting portion, acting portion is in the effect of bleeding of exhaust connector is out of shape and is realized sucking the milk operation down.

2. The suction hood as claimed in claim 1, wherein the exhaust connector comprises a first connecting portion and a second connecting portion disposed at an included angle, the end of the first connecting portion away from the second connecting portion is connected to the sealing end, the end of the second connecting portion away from the first connecting portion is used for connecting the conveying pipe, the channel comprises a first channel and a second channel communicated at an included angle, the first channel is disposed in the first connecting portion and communicated with the through hole, and the second channel is disposed in the second connecting portion and communicated with the first channel and the conveying pipe.

3. A suction hood as claimed in claim 2, characterized in that the angle between the first connection and the second connection is not more than 90 degrees.

4. The suction hood as set forth in claim 1 wherein a seal ring is attached to an end of the conformable ring distal from the apply ring, the seal ring having a first sealing surface on an end face of the open end and a second sealing surface on an inner sidewall of the hood body, the first sealing surface and the second sealing surface being disposed at an included angle.

5. A suction hood as claimed in claim 4, characterized in that the second sealing surface slopes from the first sealing surface towards the inside of the hood body, the first sealing surface being arranged at an obtuse angle to the second sealing surface.

6. A suction hood as claimed in claim 5, characterized in that the outer surface of the sealing ring is an inclined surface which is inclined inwardly from the open end towards the abutment ring.

7. A suction hood as claimed in claim 4, characterized in that the sealing ring has an outer diameter of not more than 80mm and a depth of 5 to 10 mm.

8. The suction hood as recited in claim 1, wherein the power ring has a thickness greater than a thickness of the conformable ring.

9. The suction hood as claimed in claim 1, characterized in that the cross-section of the abutment ring is curved and the abutment ring is convex towards the outside of the hood body.

10. The suction hood as claimed in claim 1, characterized in that the working ring is curved in cross section and is raised towards the inside of the hood body; or the section of the acting ring is rectangular.

11. The suction hood as claimed in claim 1, wherein the inner surface of the sealing end is a slope inclined toward the through hole.

12. The suction hood as claimed in claim 1, characterized in that the center of the through-hole is spaced apart from the center of the sealing end.

13. The suction hood as recited in any of claims 1-12, wherein the connection of the power ring and the conformable ring is a circular arc transition; and/or the acting ring and the sealing end adopt circular arc transition.

14. Suction hood according to any of claims 1 to 12, characterized in that the inner diameter of the power ring is 30 to 50 cm.

15. A suction hood as claimed in any one of claims 1 to 12, characterized in that the inner diameter of the abutment ring is 60-80 cm.

16. The suction hood as claimed in any one of claims 1 to 12, wherein the suction hood is integrally formed of 65-70 ° silicone.

17. A breast pump comprises a milk collecting bottle and a bottle cap, wherein the bottle cap is detachably arranged at the bottle opening of the milk collecting bottle, the milk collecting bottle and the bottle cap are both made of deformable materials, the breast pump is characterized by further comprising a suction hood according to any one of claims 1 to 16, an air inlet is formed in the bottle cap, and the air inlet is connected with an exhaust connector of the suction hood through a conveying pipe.

18. The breast pump as claimed in claim 17 wherein the air inlet is provided with an air inlet tube, one end of the air inlet tube extends out of the bottle cap and is detachably connected with the delivery tube, the other end of the air inlet tube extends into the bottle cap and is detachably connected with a first one-way valve, and the first one-way valve controls that gas or liquid can only be delivered towards the inside of the milk collecting bottle from one end of the air inlet tube connected with the delivery tube.

19. The breast pump as set forth in claim 17 wherein the cap defines an air vent, the air vent being provided with a second one-way valve for controlling the transfer of air or liquid from the interior of the bottle only to the exterior of the bottle.

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