Breast pump

Abstract

Provided is a breast pump, which comprises: a milk collection cup (1), wherein the milk collection cup comprises a milk collection cup body (11) and a breast shield (12), a milk tube (121) of the breast shield (12) is fixed to an open end of the milk collection cup body (11), and an outer end of the milk tube (121) extends to form a milk cup (122); a housing assembly (2), wherein the housing assembly comprises a housing (21) detachably connected to the open end of the milk collection cup body (11), a penetrating air nozzle (22), and an air pump assembly (23); a stable-flow plate (3), wherein the stable-flow plate comprises a plate body (31) that covers the open end of the milk collection cup body (11) and forms a detachable connection, a milk inlet (32) penetrating through the plate body (31), a one-way valve (33) covering the milk inlet (32), an air channel cup (34) surrounding the milk inlet (32), and a connection tube (35) penetrating through a front side of the air channel cup (34), wherein the milk tube (121) is inserted into the connection tube (35) and forms a detachable sealed connection; and an elastic air bag (4), wherein the elastic air bag is inserted into the air channel cup (34) and completely covers one end of the connection tube (35), the elastic air bag (4) is spaced apart from the milk inlet (32) and forms a detachable sealed connection with an open end of the air channel cup (34), the housing (21) abuts against and seals an open end of the elastic air bag (4), and the air nozzle (22) is in communication with the elastic air bag (4). The breast pump has a simple structure and is convenient to clean.

Description

Breast pump TECHNICAL FIELD

[0001] The utility model relates to mother and infant articles technical field, especially be related to a breast pump for collecting breast milk. BACKGROUND

[0002] The breast pump in prior art includes cavity and cup body installed at the bottom of cavity, the cup head is set in the front of cavity and is communicated with cavity by setting the cup head in the shape of horn, the cup head of breast pump is set on the breast when using, and the breast milk is collected to the cup body, and the whole breast pump is supported by the bra, so that the convenient use is achieved.

[0003] However, in the related art breast pump, the cup head design includes cup cover, channel extending from the bottom of cup cover, air groove located above the channel and communicated with the channel, and elastic air suction disc located in the air groove, the channel is divided into upper air suction channel and lower breast milk channel, the air suction channel is communicated with the air groove, the elastic air suction disc is deformed to form negative pressure in the air groove, so that the negative pressure is transmitted to the cup cover through the air suction channel, the breast is squeezed to make the breast milk flow out, and the breast milk flows to the cup body through the breast milk channel. Although this structure has good breast pumping effect, the air suction channel and the breast milk channel are in the same channel, and the negative pressure during air suction also causes a small amount of milk to be sucked into the air groove through the air suction channel, which causes inconvenience in cleaning. In addition, the cavity and the cup body are a split structure, the structure is complex, and the mold marks of multiple structure parts cannot be avoided to expose, and the appearance is not good.

[0004] Therefore, it is necessary to provide a new breast pump to solve the above problems. TECHNICAL SOLUTION

[0005] The utility model needs to solve the technical problem to provide a kind of breast pump with simple structure, easy to clean and good appearance aesthetic effect.

[0006] To solve the above technical problems, the utility model provides a kind of breast pump, comprising:

[0007] The milk collection cup is made of elastic material, which includes a milk collection cup body and a breast cover fixed to the front of the milk collection cup body;The breast cover includes a milk tube fixed to the open end of the milk collection cup body and extending horizontally, and a milk cup extending from the outer end of the milk tube to the outside of the milk collection cup body in the shape of a horn;

[0008] The shell assembly includes a shell formed by covering the open end of the milk collection cup body and being detachably connected, an air nozzle arranged through the shell, and a gas pump assembly, the gas pump assembly is connected to the air nozzle by air tube;

[0009] A stable plate, comprising a plate body which is a plate covering the opening end of the milk collecting cup and detachably connected with the milk collecting cup, a milk inlet penetrating through the plate body and communicating with the milk collecting cup, a one-way valve covering the milk inlet, a gas groove cup extending upward from the plate body and surrounding the milk inlet, and a connecting pipe penetrating through the front of the gas groove cup and extending to the opening end of the milk collecting cup along the axis perpendicular to the gas groove cup; the milk pipe and the connecting pipe are detachably and sealingly connected; and

[0010] An elastic air bag is inserted into the gas groove cup and completely covers one end of the connecting pipe close to the elastic air bag; the elastic air bag is spaced from the milk inlet and its opening end is detachably and sealingly connected with the opening end of the gas groove cup; the shell is pressed against the opening end of the elastic air bag and forms a seal, and the air nozzle communicates with the elastic air bag.

[0011] Preferably, the milk collecting cup, the milk pipe and the milk cup are integrally injection molded.

[0012] Preferably, the outer periphery of the milk pipe is provided with external threads, the inner periphery of the connecting pipe is provided with internal threads, and the external threads and the internal threads are screwed to form a seal.

[0013] Preferably, the outer periphery of the milk pipe is provided with external threads, the inner periphery of the connecting pipe is provided with internal threads, and the external threads and the internal threads are screwed to form a seal.

[0014] Preferably, the stable plate further comprises a milk collecting groove extending downward from the plate body into the milk collecting cup, the gas groove cup is arranged around the milk collecting groove, the milk inlet penetrates through the bottom of the milk collecting groove, and the one-way valve is fixed to the bottom of the milk collecting groove.

[0015] Preferably, the one-way valve is made of elastic material and comprises a connecting column penetrating through the bottom of the milk collecting groove, a clamping wall formed on the side of the connecting column close to the elastic air bag, and a valve tongue formed on the side of the connecting column away from the elastic air bag, the valve tongue is attached to the side of the bottom of the milk collecting groove away from the elastic air bag and completely covers the milk inlet.

[0016] Preferably, the bottom of the milk collecting groove is high in the middle and low on the periphery, and the milk inlet is located in the peripheral area of the bottom of the milk collecting groove.

[0017] Preferably, the elastic air bag is located in the milk collecting groove, the outer periphery of the elastic air bag is provided with a guide groove, the guide groove extends from the bottom of the elastic air bag to the opposite two sides, and the part of the guide groove on the side of the elastic air bag is opposite to the connecting pipe.

[0018] Preferably, the air pump assembly comprises an air pump and a closed air switch valve respectively installed in the shell, the air nozzle comprises an air outlet nozzle and an air inlet nozzle respectively communicated with the elastic air bag, the air pump is communicated with the air outlet nozzle through an air pipe for extracting air in the elastic air bag, and the closed air switch valve is communicated with the air inlet nozzle through an air pipe for introducing external air into the elastic air bag when the air pump stops working.

[0019] Preferably, the periphery of the plate body is recessed in a direction away from the milk collecting cup body to form a milk backflow groove, and the plate body cover forms a milk backflow opening together with the milk backflow groove when the plate body cover is arranged on the milk collecting cup body. Advantages

[0020] Compared with the related art, the breast pump of the utility model discloses a milk collecting cup made of elastic material for collecting milk and a milk collecting cup body and a milk cover, a detachable sealing connection is formed by arranging the stable plate on the open end of the milk collecting cup body, the milk collecting cup body forms a closed environment for collecting milk, and a detachable sealing connection is formed between the milk pipe of the milk cover and the connecting pipe of the stable plate, the air groove cup on the stable plate is communicated with the connecting pipe, an elastic air bag is arranged in the air groove cup, air in the elastic air bag is extracted by the air pump assembly to form negative pressure, thereby forming negative pressure in the connecting pipe and the milk pipe, and the purpose of sucking out milk is achieved, the connecting pipe and the milk pipe form a channel shared by air suction and milk suction, the number of components is reduced, the structure is simple, cleaning is convenient, the air groove cup containing the elastic air bag is directly communicated with the milk inlet, milk can enter the milk collecting cup body more smoothly, the mold marks or installation marks can be hidden at the upper and lower joint of the milk collecting cup body and the stable plate, and the appearance is more beautiful. BRIEF DESCRIPTION OF DRAWINGS

[0021] The utility model will be described in detail below by combining with the drawings. The above or other aspects of the utility model will become clearer and more easily understood through the following detailed description combined with the drawings. In the drawings:

[0022] Fig. 1 is a schematic diagram of the three-dimensional structure of the breast pump of the utility model;

[0023] Fig. 2 is a schematic diagram of the partial three-dimensional structure of the breast pump of the utility model;

[0024] Fig. 3 is a schematic diagram of the cross-sectional structure of Fig. 1;

[0025] Fig. 4 is a schematic diagram of the partial three-dimensional structure of the breast pump of the utility model;

[0026] Fig. 5 is a schematic diagram of the three-dimensional structure of the breast pump of the utility model;

[0027] Fig. 6 is a partial exploded perspective view of the breast pump according to the second embodiment of the present application. Best Mode for Carrying Out the Invention

[0028] The specific embodiments of the present application described herein are presented by way of example to teach those skilled in the art that best mode for practicing the application. Other embodiments of the application will be apparent to those of ordinary skill in the art from this disclosure. The described embodiments are exemplary and explanatory only and are not intended to limit the scope of the application as encompassed by the appended patent claims.

[0029] The specific embodiments of the present application described herein are presented by way of example to teach those skilled in the art that best mode for practicing the application. Other embodiments of the application will be apparent to those of ordinary skill in the art from this disclosure. The described embodiments are exemplary and explanatory only and are not intended to limit the scope of the application as encompassed by the appended patent claims.

[0030] The following description of several embodiments with reference to the accompanying drawings is used to illustrate specific embodiments that can be used to implement the present application. The directions mentioned in the present application, such as up, down, front, back, left, right, inside, outside, side, etc., are only the directions of the accompanying drawings. Therefore, the directions used are used to illustrate and understand the present application, not to limit the present application.

[0031] Please refer to FIG. 1-6, the present application provides a kind of breast pump 100, including milk collection cup 1, shell assembly 2, stable plate 3, elastic air bag 4.

[0032] The milk collection cup 1 includes a milk collection cup body 11 for collecting milk and a milk cover 12 fixed to the front of the milk collection cup body 11.

[0033] In this embodiment, the front refers to the side of the breast pump 100 facing the breast when used by the user.

[0034] The milk cover 12 includes a milk tube 121 fixed to the open end of the milk collection cup body 11 and extending horizontally, and a milk cup 122 extending from the outer end of the milk tube 121 to the outside of the milk collection cup body 11 and being trumpet-shaped.

[0035] In this embodiment, the milk collection cup 1 is made of elastic material, such as silicone. The milk collection cup body 11 and the milk cover 12 can be a one-piece structure or a split structure. When it is a split structure, the milk tube 121 of the milk cover 12 is designed to be directly inserted or rotatably mounted on the open end of the milk collection cup body 11. The preferred embodiment of the present application is that the milk collection cup 1 is a one-piece injection molding structure, which not only effectively reduces the number of main components and simplifies the structure, but also makes cleaning more convenient.

[0036] The breast cup 122 is trumpet-shaped, which is adapted to the breast, and the material is elastic, which can better match the breast and improve comfort. When the breast cup 122 covers the breast, the nipple is opposite the milk duct 121, and when the negative pressure is generated in the milk duct 121, the milk in the breast is sucked out and flows into the milk collecting cup body 11 through the milk duct 121 to achieve collection. Because the breast cup 122 is made of elastic material, it can adapt to the breast when the position of the breast is adjusted, and it can play a certain dynamic adjustment role without causing milk leakage, and the reliability is better.

[0037] As shown in FIGS. 5-6, the shell assembly 2 is made of hard material, which includes a shell 21 covering the open end of the milk collecting cup body 11 and forming a detachable connection, an air nozzle 22 provided through the shell 21, and an air pump assembly 23 connected to the air nozzle 22 through an air pipe.

[0038] The air pump assembly 23 can be provided as a separate structure outside the shell 21, as shown in FIGS. 1-4, or can be provided inside the shell 21 and integrated into the breast pump 100 to form an integrated structure, as shown in FIGS. 5-6, which is the difference between the two embodiments of the present application, and both are feasible.

[0039] In this embodiment, the air pump assembly 23 is integrated into the breast pump 100, as shown in FIGS. 5-6. Specifically, the air pump assembly 23 includes an air pump 231 and a closed air switch valve 232 installed in the shell 21, respectively. The air nozzle 22 includes an air outlet nozzle 221 and an air inlet nozzle 222 in communication with the elastic air bag 4, respectively. The air pump 231 is in communication with the air outlet nozzle 221 through an air pipe, for extracting air in the elastic air bag 4 to achieve milk suction. The closed air switch valve 232 is in communication with the air inlet nozzle 222 through an air pipe, for introducing external air into the elastic air bag 4 when the air pump 231 stops working, so that the elastic air bag 4 restores elastic deformation. That is, when the air pump 231 inhales, the closed air switch valve 232 is closed, and when the air pump 231 stops inhaling, the closed air switch valve 232 is opened.

[0040] Continuing to refer to FIGS. 1-4, the stable plate 3 includes a plate body 31 covering the open end of the milk collecting cup body 11 and forming a detachable connection with the periphery of the milk collecting cup body 11, a milk inlet 32 penetrating the plate body 31 and communicating with the milk collecting cup body 11, a one-way valve 33 covering the milk inlet 32, an air groove cup 34 extending upward from the plate body 31 and surrounding the milk inlet 32, and a connecting pipe 35 penetrating the front of the air groove cup 34 and extending to the open end of the milk collecting cup body 11 along an axis perpendicular to the air groove cup 34.

[0041] In this embodiment, the stable plate 3 is made of hard material.

[0042] The plate body 31 is clamped to the opening end of the milk collecting cup body 11 by a clamping structure to form a closed space in the milk collecting cup body 11, thereby preventing the collected milk from overflowing.

[0043] More preferably, the periphery of the plate body 31 is recessed on the side close to the milk collecting cup body 11 to form a milk pouring groove (not shown in the figure) in the direction away from the milk collecting cup body 11. When the plate body 31 is arranged on the milk collecting cup body 11, the plate body 31 and the milk pouring groove together form a milk pouring opening 311, which facilitates pouring the milk out of the milk collecting cup body 11 after milking. Meanwhile, the structure is an up-down installation structure, and the mold marks or installation marks of the milk pouring opening 311 can be hidden, which is more beautiful.

[0044] The milk pipe 121 is detachably and sealingly connected to the connecting pipe 35, so that the milk pipe 121 and the connecting pipe 35 together form a channel structure for collecting milk.

[0045] The sealing connection between the milk pipe 121 and the connecting pipe 35 can be plug connection or rotary connection.

[0046] Specifically, in the embodiment, the outer periphery of the milk pipe 121 is provided with external threads, and the inner periphery of the connecting pipe 35 is provided with internal threads. The external threads are screw-connected to the internal threads to form a seal. This structure design is convenient for disassembly and assembly, and has good sealing performance. The design that the milk pipe 121 is inserted makes the channel structure for collecting milk have a high front and a low back. The inner diameter of the milk pipe 121 is smaller than the inner diameter of the connecting pipe 35, thereby forming a step structure for blocking, which better prevents the backflow of milk to the milk cup 122 and has better reliability. This is a rotary connection mode.

[0047] Alternatively, the outer periphery of the milk pipe 121 close to one end of the connecting pipe 35 is protruded to form a ring-shaped pattern, and the milk pipe 121 is inserted into the connecting pipe 35 to form an interference fit, thereby forming a sealing connection. This is a plug connection.

[0048] The elastic air bag 4 is inserted into the air groove cup 34 and completely covers the end of the connecting pipe 35 close to the elastic air bag 4. The elastic air bag 4 is spaced from the milk inlet 32, and the opening end of the elastic air bag 4 is detachably and sealingly connected to the opening end of the air groove cup 34.

[0049] More preferably, the shell 21 is pressed against the open end of the elastic air bag 4 and forms a seal, further enhancing the sealing reliability. The air nozzle 22 is in communication with the elastic air bag 4. The air pump assembly draws air in the elastic air bag 4 through the air nozzle 22, and the elastic air bag 4 is compressed and deformed, so that a negative pressure is formed in the air groove cup 34, and the negative pressure is sequentially realized through the connecting pipe 35, the milk pipe 121 and the milk cup 122 to press the breast, so that the milk is sucked out, and the milk flows to the air groove cup 34 through the milk pipe 121 and the connecting pipe 35, and then flows to the milk collecting cup body 11 through the milk inlet 32 at the bottom of the air groove cup 34. When the air pump assembly inhales air and a negative pressure is generated in the air groove cup 34, the one-way valve 33 is in a closed state, and at this time, the milk flows to the bottom of the air groove cup 34. When the air pump assembly stops inhaling air, the elastic air bag 4 restores the deformation and fits the connecting pipe 35 to form a barrier, so that the milk does not flow back to the connecting pipe 35, avoiding the phenomenon of milk leakage during movement. At the same time, because the negative pressure disappears, the one-way valve 33 loses suction, and the liquid milk presses the one-way valve 33 open by its own gravity and flows into the milk collecting cup body 11.

[0050] In order to make the milk collection more smooth, the stable plate 3 further comprises a milk collecting groove 36 extending downward from the plate body 31 into the milk collecting cup body 11, the air groove cup 34 is arranged around the milk collecting groove 36, the milk inlet 32 penetrates the groove bottom of the milk collecting groove 36, and the one-way valve 33 is fixed to the groove bottom of the milk collecting groove 36. The design of the milk collecting groove 36 can also make the air groove cup 34 better fit the elastic air bag 4, which is more conducive to draining the milk in the air groove cup 34, and also better fits the one-way valve 33, increasing the air tightness.

[0051] In this embodiment, the one-way valve 33 is made of an elastic material. Specifically, the one-way valve 33 comprises a connecting column 331 penetrating the groove bottom of the milk collecting groove 36, a clamping wall 332 formed on the side of the connecting column 331 close to the elastic air bag 4, and a valve tongue 333 formed on the side of the connecting column 331 away from the elastic air bag 4. The valve tongue 333 is attached to the side of the groove bottom of the milk collecting groove 36 away from the elastic air bag 4 and completely covers the milk inlet 32.

[0052] Of course, the one-way valve 33 can also be a duckbill structure made of an elastic material, and the principle is the same.

[0053] More preferably, the groove bottom of the milk collecting groove 36 is high in the middle and low at the periphery, and the milk inlet 32 is located in the peripheral area of the groove bottom of the milk collecting groove 36. Further improve the smoothness of milk collection.

[0054] In the embodiment, the elastic air bag 4 is located in the milk collection groove 36, and the outer periphery of the elastic air bag 4 is provided with a guide groove 41 extending from the bottom of the elastic air bag 4 to the opposite two side surfaces, and the guide groove 41 is located opposite to the connecting pipe 35 at the part of the side surface of the elastic air bag 4. The arrangement of the guide groove 41 can effectively prevent the incorrect contraction of the elastic air bag 4, guide the contraction of the elastic air bag 4 at the accurate position to open the communication passage of the connecting pipe 35 and the milk collection groove 36, and the milk pumping reliability is better.

[0055] Compared with the related art, the breast pump of the utility model discloses a milk collection cup made of elastic material for collecting milk and a milk collection cup body and a milk cover, a stable communication plate cover is arranged at the opening end of the milk collection cup body to form detachable sealing connection, the milk collection cup body forms a closed environment for collecting milk, and the milk pipe of the milk cover and the connecting pipe of the stable communication plate form detachable sealing connection, the air groove cup on the stable communication plate is communicated with the connecting pipe, and an elastic air bag is arranged in the air groove cup, the gas in the elastic air bag is extracted by the air pump assembly to form negative pressure, so that negative pressure is formed in the connecting pipe and the milk pipe, and the purpose of sucking out milk is achieved, the connecting pipe and the milk pipe are shared by air suction and milk pumping, parts are reduced, the structure is simple, cleaning is convenient, the air groove cup containing the elastic air bag is directly communicated with the milk inlet, milk can more smoothly enter the milk collection cup body, the mold mark or the installation mark can be hidden at the upper and lower joint of the milk collection cup body and the stable communication plate, and the appearance is more beautiful.

[0056] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process transformation according to the content of the utility model specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection range of the utility model.

Claims

1. A breast pump, characterized in that The application relates to a milking cup, a shell assembly and a stable plate. The milking cup comprises a milking cup body and a milk cover fixed to the front of the milking cup body; the milk cover comprises a milk tube fixed to the opening end of the milking cup body and horizontally extending, and a milk cup extending from the outer end of the milk tube to the outside of the milking cup body and being trumpet-shaped. The shell assembly comprises a shell covering the opening end of the milking cup body and forming detachable connection, an air nozzle arranged through the shell, and an air pump assembly connected to the air nozzle through an air pipe. The stable plate comprises a plate body covering the opening end of the milking cup body and forming detachable connection with the milking cup body, a milk inlet arranged through the plate body and communicating with the milking cup body, a one-way valve covering the milk inlet, an air groove cup extending upward from the plate body and surrounding the milk inlet, and a connecting pipe arranged through the front of the air groove cup and extending to the opening end of the milking cup body along an axis perpendicular to the air groove cup; the milk tube and the connecting pipe form detachable sealing connection; and An elastic air bag is inserted into the air groove cup and completely covers one end of the connecting pipe close to the elastic air bag; the elastic air bag is spaced from the milk inlet and its opening end forms detachable sealing connection with the opening end of the air groove cup; the shell is pressed against the opening end of the elastic air bag and forms sealing, and the air nozzle communicates with the elastic air bag.

2. The breast pump of claim 1, wherein, The milking cup body, the milk tube and the milk cup are integrally injection molded.

3. The breast pump of claim 1, wherein, The outer periphery of the milk tube is provided with external threads, the inner periphery of the connecting pipe is provided with internal threads, and the external threads and the internal threads are screwed to form sealing.

4. The breast pump of claim 1, wherein, The outer periphery of the milk tube is protruded to form a ring-shaped pattern at one end close to the connecting pipe, the milk tube is inserted into the connecting pipe and forms sealing connection through interference fit.

5. The breast pump of claim 1, wherein, The stable plate further comprises a milking groove extending downward from the plate body into the milking cup body, the air groove cup is arranged around the milking groove, the milk inlet is arranged through the groove bottom of the milking groove, and the one-way valve is fixed to the groove bottom of the milking groove.

6. The breast pump of claim 5, wherein, The one-way valve is made of elastic material and comprises a connecting column arranged through the groove bottom of the milking groove, a clamping wall formed on the side of the connecting column close to the elastic air bag, and a valve tongue formed on the side of the connecting column away from the elastic air bag; the valve tongue is attached to the side of the groove bottom of the milking groove away from the elastic air bag and completely covers the milk inlet.

7. The breast pump of claim 6, wherein, The groove bottom of the milking groove is high in the middle and low at the periphery, and the milk inlet is located in the peripheral area of the groove bottom of the milking groove.

8. The breast pump of claim 5, wherein, The elastic air bag is located in the milking groove, the outer periphery of the elastic air bag is provided with a guide groove extending from the bottom of the elastic air bag to the opposite two side surfaces, and the guide groove is opposite to the connecting pipe at the part of the side surface of the elastic air bag.

9. The breast pump of claim 1, wherein, The air pump assembly comprises an air pump and a closed air switch valve respectively installed in the shell, the air nozzle comprises an air outlet nozzle and an air inlet nozzle respectively communicated with the elastic air bag, the air pump is communicated with the air outlet nozzle through an air pipe for extracting air in the elastic air bag, and the closed air switch valve is communicated with the air inlet nozzle through an air pipe for introducing external air into the elastic air bag when the air pump stops working.

10. The breast pump of claim 1, wherein, The periphery of the plate body is recessed in a direction away from the milk collecting cup body to form a milk backflow groove, and the plate body cover cooperates with the milk backflow groove to form a milk backflow opening when the plate body cover is arranged on the milk collecting cup body.

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