Breast pump

Abstract

The utility model provides a breast pump, and relates to the technical field of mother and baby products. The breast pump comprises a shell, a breast suction cover and a main machine, the shell comprises a first area and a second area, and the projection of the first area and the projection of the second area on the breast suction cover do not coincide; a liquid storage cavity and a horn cavity are defined by the breast suction cover and the first area of the shell, the liquid storage cavity is used for storing collected milk, and the horn cavity is used for containing breasts; a functional assembly is arranged in the breast sucking cover; the host is arranged on the side, away from the breast suction cover, of the shell and electrically connected with the functional assembly through the conductive carrier, and the conductive carrier penetrates through the second area of the shell. According to the breast pump, the shell is divided into the first area and the second area which do not coincide with each other, the liquid storage cavity and the conductive carrier are located in the first area and the second area respectively, so that the sealing performance of the breast pump is improved, and the situation that the conductive carrier is immersed into emulsion to form short circuit or poor contact is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of maternal and child products, in particular to a breast pump. BACKGROUND

[0002] The breast pump is an instrument for postpartum use. When it is inconvenient to feed the baby, lactating women can use the breast pump to suck out the breast milk from the breast and store it for later use, which can avoid waste of breast milk and facilitate the work and life of lactating women. Therefore, the breast pump is popular in the market. With the development of technology, people have higher pursuit of the breast pump. Some breast pumps with auxiliary functions such as horn cover heating have appeared in the market. Such breast pumps improve the sealing requirement of the liquid storage cavity. CONTENT OF THE UTILITY MODEL

[0003] The embodiment of the present application provides a breast pump for improving the sealing of the milk storage cavity.

[0004] In some embodiments, a breast pump is provided, which comprises a shell, a breast cup and a main machine. The shell comprises a first area and a second area. The breast cup is arranged on one side of the shell. The projection of the first area and the second area on the breast cup does not coincide. The breast cup and the first area of the shell enclose a liquid storage cavity. A functional component is arranged in the breast cup. The main machine is arranged on the side of the shell away from the breast cup. The main machine is electrically connected with the functional component through a conductive carrier. The conductive carrier is arranged in the second area of the shell.

[0005] In some embodiments, the second area comprises a connection area and a liquid outlet area, the projections of which on the breast cup do not coincide. The liquid outlet area is provided with a liquid return channel for connecting the liquid storage cavity with the outside world. The conductive carrier is arranged in the connection area.

[0006] In some embodiments, the liquid outlet area is arranged at the position of the central axis of the shell. The connection areas are symmetrically distributed on both sides of the central axis.

[0007] In some embodiments, the liquid outlet area is a closed ring structure. The liquid return channel is defined by the inner wall of the ring structure to isolate the liquid return channel from the connection area. One end of the liquid return channel communicates with the liquid storage cavity, and the other end extends to the edge of the shell.

[0008] In some embodiments, the breast cup comprises an inner side and an outer side arranged opposite to each other. An avoiding groove is arranged on the breast cup. The connection area is adjacent to the inner side of the breast cup. The liquid outlet area passes through the avoiding groove and extends to the outer side of the breast cup.

[0009] In some embodiments, the breast cup comprises a sealing member arranged on a side of the breast cup facing the shell, the sealing member is sealingly attached to an inner wall of the shell to form a liquid storage cavity, and the sealing member divides the shell into the first region and the second region.

[0010] In some embodiments, a positioning column is arranged on a side of the breast cup facing the main machine or a side of the main machine facing the breast cup, the shell is provided with a positioning hole corresponding to a position of the positioning column, the positioning hole is located in the connecting area, and the positioning column is inserted into the positioning hole.

[0011] In some embodiments, an installation cavity is formed in the positioning column, the conductive carrier comprises a first contact arranged on the main machine and a second contact arranged on the breast cup and electrically connected to the functional component,

[0012] The first contact is located in the installation cavity, the first contact is inserted into the installation cavity and is in contact with the second contact for electrical connection, so that the main machine supplies power to the functional component;

[0013] Alternatively, the second contact is located in the installation cavity, the first contact is inserted into the installation cavity and is in contact with the second contact for electrical connection, so that the main machine supplies power to the functional component.

[0014] In some embodiments, the breast cup comprises a liquid outlet pipe, a first cup body and a second cup body with an outer diameter gradually increasing away from the liquid outlet pipe, the second cup body is provided with a mounting hole matching the shape of the liquid outlet pipe, the second cup body is sleeved on the outside of the liquid outlet pipe through the mounting hole and is attached to a side of the first cup body facing the liquid outlet pipe, the functional component is embedded between the first cup body and the second cup body, one end of the second contact is electrically connected to the functional component, and the other end extends to the surface of the second cup body.

[0015] In some embodiments, the breast cup and the shell form a horn cavity for accommodating a breast, a one-way valve is arranged between the liquid storage cavity and the horn cavity, the one-way valve is used for allowing liquid in the horn cavity to flow into the liquid storage cavity and preventing liquid in the liquid storage cavity from flowing into the horn cavity.

[0016] The breast pump provided by the embodiments of the present application forms a liquid storage cavity by surrounding the breast cup and the shell, optimizes the space of the liquid storage cavity, makes the structure more compact, and increases the liquid storage capacity; by dividing the shell into a first region and a second region which do not overlap with each other, the liquid storage cavity and the conductive carrier are respectively located in the first region and the second region to improve the sealing performance of the breast pump and avoid short circuit or poor contact caused by the conductive carrier immersed in the emulsion. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort based on these drawings.

[0018] Figure 1 is the overall structure schematic diagram of the breast pump in some embodiments of the present application;

[0019] Figure 2 is Figure 1 the cross-sectional schematic diagram of the breast pump in the embodiment;

[0020] Figure 3 is Figure 1 the explosion schematic diagram of the breast pump in the embodiment;

[0021] Figure 4 is Figure 1 the explosion schematic diagram of the breast pump in another view in the embodiment;

[0022] Figure 5 is Figure 1 the explosion schematic diagram of the breast shield in the embodiment;

[0023] Figure 6 is Figure 1 the connection relationship schematic diagram of the first contact and the second contact in the embodiment;

[0024] Figure 7 is the connection relationship schematic diagram of the first contact and the second contact in another embodiment;

[0025] Figure 8 is Figure 1 the cross-sectional schematic diagram of the shell in the embodiment;

[0026] Figure 9 is Figure 1 the cooperation relationship schematic diagram of the shell, the main machine and the breast shield in the embodiment.

[0027] In the above drawings:

[0028] 101-liquid storage cavity, 102-horn cavity, 103-liquid pouring channel, 104-first area, 105-second area, 1051-connection area, 1052-liquid outlet area;

[0029] 11 - shell, 111 - support part, 1111 - first step, 1112 - second step, 112 - raised part, 113 - first slot, 114 - second slot, 115 - first accommodating part, 1151 - liquid inlet pipe, 1152 - negative pressure interface, 1153 - liquid outlet pipe, 118 - one-way valve, 1181 - connecting part, 1182 - suction part, 119 - positioning hole;

[0030] 12 - breast shield, 120 - sealing element, 121 - first shield body, 122 - second shield body, 1221 - mounting hole, 1222 - positioning column, 123 - liquid outlet pipe, 124 - convex rib, 125 - flexible sealing ring, 126 - avoiding groove, 127 - inner side, 128 - outer side;

[0031] 13 - deformable sealing element, 131 - first flange;

[0032] 20 - main machine, 21 - main control board, 22 - negative pressure connector, 23 - main machine shell, 231 - outer edge part, 24 - first cover plate, 25 - second cover plate, 26 - magnetic element, 27 - first slot, 28 - second slot, 29 - suction pump;

[0033] 30 - conductive carrier, 31 - first contact, 32 - second contact;

[0034] 40 - functional assembly, 41 - heat generating element. DETAILED DESCRIPTION

[0035] The present application will be further described below in conjunction with the accompanying drawings and examples. It is particularly pointed out that the following examples are only for illustrating the present application, but not for limiting the scope of the present application. Similarly, the following examples are only part of the examples of the present application, but not all the examples of the present application. All other examples obtained by those skilled in the art without making creative efforts are within the scope of protection of the present application.

[0036] The terms "first", "second", "third", etc. in the embodiments of the present application are only used for descriptive purpose and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second", "third" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "plurality" is at least two, for example, two, three, etc., unless otherwise explicitly and specifically limited. All directional indications (such as upper, lower, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between the modules in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly. The terms "include" and "have" and any variations thereof in the embodiments of the present application are intended to cover the non-exclusive inclusion. For example, the processes, methods, systems, products or devices including a series of steps or units are not limited to the listed steps or units, but can optionally include steps or units not listed or can optionally include other steps or components inherent to the processes, methods, products or devices.

[0037] Reference herein to "embodiments" means that a particular feature, structure, or characteristic described in connection with an embodiment can be included in at least one embodiment of the application. The appearances of the phrase that the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of other embodiments. It is explicitly and implicitly understood that the embodiments described herein can be combined with other embodiments.

[0038] Please refer to Figure 1 , Figure 2 and Figure 3 , Figure 1 is a schematic diagram of the overall structure of the breast pump in some embodiments of the present application, Figure 2 is Figure 1 a schematic diagram of the cross section of the breast pump in the embodiments, Figure 3 is Figure 1 an exploded schematic diagram of the breast pump in the embodiments.

[0039] The embodiment of the present application provides a breast pump, which comprises a shell 11, a breast cup 12 and a main machine 20. The shell 11 comprises a first area 104 and a second area 105, and the projections of the first area 104 and the second area 105 on the breast cup 12 do not coincide. The breast cup 12 and the first area 104 of the shell 11 enclose a liquid storage cavity 101 and a horn cavity 102. The liquid storage cavity 101 is used for storing collected milk, and the horn cavity 102 is used for accommodating a breast. A functional assembly 40 is arranged in the breast cup 12. The main machine 20 is arranged on the side of the shell 11 away from the breast cup 12. The main machine 20 is electrically connected with the functional assembly 40 through a conductive carrier 30, and the conductive carrier 30 passes through the second area 105 of the shell 11.

[0040] The functional assembly 40 can be a component for realizing any single function such as hot compress and massage on the breast or realizing multiple functions simultaneously. The main machine 20 comprises a negative pressure unit and a function control unit. The output end of the negative pressure unit is communicated with the horn cavity 102, and is used for controlling the formation of negative pressure in the horn cavity 102. The function control unit is electrically connected with the functional assembly 40 through the conductive carrier 30, and the conductive carrier 30 is arranged outside the liquid storage cavity 101 and the horn cavity 102.

[0041] By adopting the above scheme, the liquid storage cavity 101 is formed by the breast cup 12 and the shell 11, the space of the liquid storage cavity 101 is optimized, the structure is more compact, and the liquid storage capacity is enlarged. By dividing the shell 11 into the first area 104 and the second area 105 whose projections on the breast cup 12 do not coincide, the liquid storage cavity 101 and the conductive carrier 30 are arranged in the first area 104 and the second area 105 respectively, so that the sealing performance of the breast pump is improved, and the conductive carrier 30 is prevented from being immersed in the milk to form a short circuit or poor contact.

[0042] Please refer to Figure 3 and Figure 4 , Figure 4 is Figure 1 The embodiment of the present application provides a breast pump, which comprises a shell 11, a breast cup 12 and a main machine 20. The shell 11 comprises a first area 104 and a second area 105, and the projections of the first area 104 and the second area 105 on the breast cup 12 do not coincide. The breast cup 12 and the first area 104 of the shell 11 enclose a liquid storage cavity 101 and a horn cavity 102. The liquid storage cavity 101 is used for storing collected milk, and the horn cavity 102 is used for accommodating a breast. A functional assembly 40 is arranged in the breast cup 12. The main machine 20 is arranged on the side of the shell 11 away from the breast cup 12. The main machine 20 is electrically connected with the functional assembly 40 through a conductive carrier 30, and the conductive carrier 30 passes through the second area 105 of the shell 11.

[0043] Optionally, the liquid outlet area 1052 is a closed ring structure, and the liquid outlet area 1052 encloses the liquid pouring channel 103 to isolate the liquid pouring channel 103 from the connecting area 1051. That is, the liquid pouring channel 103 is defined by the inner wall of the ring structure, and one end of the liquid pouring channel 103 is in communication with the liquid storage cavity 101, and the other end extends to the edge of the shell 11. During pouring of the emulsion, the emulsion can directly flow from the first area 104 along the liquid pouring channel 103 through the second area 105, and the inner wall of the ring structure is not in communication with the outer wall, so that the emulsion is limited to flow in the liquid outlet area 1052 when flowing through the second area 105, avoiding contact between the emulsion and the conductive carrier 30 of the connecting area 1051. The ring structure can be circular, square or other closed special-shaped structure in cross section, which is not limited here.

[0044] Optionally, the liquid outlet area 1052 is an open groove structure, and the liquid pouring channel 103 is defined by the groove wall of the groove structure, and one end of the liquid pouring channel 103 is in communication with the liquid storage cavity 101, and the other end extends to the edge of the shell 11. During pouring of the emulsion, the opening of the groove structure can be upward, and the emulsion can be slowly poured along the groove wall of the groove structure.

[0045] Please refer to Figure 3 In some embodiments, the liquid outlet area 1052 is arranged at the central axis position of the shell 11, Figure 3 The dashed line Z shown in the middle is the central axis of the shell 11, and the connecting area 1051 is symmetrically distributed on both sides of the central axis, and the extension direction of the liquid pouring channel 103 is consistent with the extension direction of the central axis. During use, the liquid pouring channel 103 can be vertically upward to avoid the emulsion flowing out under the action of gravity, and of course the liquid pouring channel 103 can be blocked by a plug or an electromagnetic valve.

[0046] Please continue to refer to Figure 3 In some embodiments, the breast cup 12 includes an inner side 127 and an outer side 128 arranged opposite to each other, and the breast cup 12 is provided with a relief groove 126, the relief groove 126 penetrates the inner side 127 and the outer side 128 of the breast cup 12, and the groove opening of the relief groove 126 matches part of the outer contour of the liquid outlet area 1052. The connecting area 1051 is adjacent to the inner side 127 of the breast cup 12, and the liquid outlet area 1052 passes through the relief groove 126 and extends to the outer side 128 of the breast cup 12. That is, the liquid outlet area 1052 is arranged protruding from the connecting area 1051, so that the protruding part of the liquid outlet area 1052 can correspond to the bottle opening of the milk storage bottle, facilitating pouring of the sucked emulsion into the milk storage bottle for storage.

[0047] In combination with the embodiment in which the liquid outlet area 1052 is a ring structure, the main body 20 is also provided with a recess corresponding to the position of the liquid outlet area 1052. The recess on the main body 20 and the avoiding groove 126 on the breast cup 12 are combined to form a ring matching the outer contour shape of the ring structure, so that the liquid outlet area 1052 extends to the outside of the main body 20 and the breast cup 12.

[0048] Referring to Figure 3 , the breast cup 12 comprises a sealing member 120 arranged on the side of the breast cup 12 facing the shell 11. The sealing member 120 divides the shell 11 into a first area 104 and a second area 105. It should be noted that in combination with the embodiment in which the second area 105 comprises a connecting area 1051 and a liquid outlet area 1052 and the liquid outlet area 1052 is a closed ring structure, the first area 104 is isolated from the connecting area 1051 by the sealing member 120, and the connecting area 1051 is isolated from the liquid outlet area 1052 by the ring structure formed by the shell 11 itself. In this way, it can be ensured that the connecting area 1051 is always isolated from the first area 104 and the liquid outlet area 1052 during the operation of the breast pump and the pouring process, thereby avoiding the short circuit or poor contact caused by the infiltration of the milk liquid into the conductive carrier 30.

[0049] Referring to Figure 5 , Figure 5 is Figure 1 an exploded schematic view of the breast cup in the embodiment. Specifically, the sealing member 120 comprises a convex rib 124 protruding from the side of the breast cup 12 facing the shell 11 towards the shell 11, and the convex rib 124 is fixedly attached to the inner wall of the shell 11 to form the liquid storage cavity 101.

[0050] Optionally, the sealing member 120 further comprises a flexible sealing ring 125 sleeved on the convex rib 124. When the breast cup 12 is assembled and connected with the shell 11, the flexible sealing ring 125 is squeezed into the gap between the convex rib 124 and the inner wall of the shell 11 to form a tightening force, thereby ensuring the sealing property of the liquid storage cavity 101 and the stability of the connection between the breast cup 12 and the shell 11.

[0051] In some embodiments, the sealing member 120 can be arranged on the side of the shell 11 facing the breast cup 12, and the side of the breast cup 12 facing the shell 11 is provided with a recess corresponding in shape to the first area 104. The sealing member 120 is embedded in the recess to achieve the sealing and attachment of the shell 11 and the breast cup 12.

[0052] In some embodiments, the liquid outlet area 1052 can also be arranged in the first area 104. For example, the liquid outlet area 1052 is arranged at one end of the first area 104 away from the second area 105, and the sealing member 120 is arranged on the side of the breast cup 12 facing the shell 11. The first area 104 is isolated from the second area 105 by the sealing member 120, and the liquid outlet area 1052 is provided with a liquid pouring channel 103 that is in communication with the liquid storage cavity 101. When the breast pump is in operation, the liquid pouring channel 103 can be arranged vertically upward, and the second area 105 is located below the first area 104. Since the first area 104 is isolated from the second area 105 by the sealing member 120, the liquid in the liquid storage cavity 101 of the first area 104 can be prevented from flowing to the second area 105 and damaging the conductive carrier 30 in the second area 105. When pouring the liquid, the liquid pouring channel 103 can be arranged downward, and the first area 104 is located below the second area 105. The liquid outlet area 1052 is arranged at one end of the first area 104 away from the second area 105, so that the liquid flowing through the liquid outlet area 1052 can be prevented from spreading to the second area 105.

[0053] Referring to Figure 5 In some embodiments, the breast cup 12 includes a liquid outlet pipe 123, a first cup body 121 and a second cup body 122, the outer diameter of the first cup body 121 and the second cup body 122 gradually expands away from the liquid outlet pipe 123, the second cup body 122 is provided with a mounting hole 1221 matching the shape of the liquid outlet pipe 123, the second cup body 122 is sleeved on the outer side of the liquid outlet pipe 123 through the mounting hole 1221 and is attached to the side of the first cup body 121 facing the liquid outlet pipe 123, and the functional assembly 40 is embedded between the first cup body 121 and the second cup body 122. The second cup body 122 can be made of hard rubber as a support body, and the first cup body 121 can be made of soft rubber to better fit the breast. The first cup body 121 and the second cup body 122 can be integrally formed and fused together. The hard rubber can be TRITAN, PPSU, or PP plastic. The soft rubber can be a silicone, TPE, TPU, or other elastomer material.

[0054] Further, the sealing member 120 is arranged on the second cup body 122, and the flexible sealing ring 125 is connected to the convex rib 124 and surrounds to form a closed area. The second cup body 122 is provided with a positioning column 1222 on the side facing the shell 11, the positioning column 1222 is located outside the closed area formed by the flexible sealing ring 125, and the positioning column 1222 is specifically located in the connecting area 1051. The shell 11 is provided with a positioning hole 119 corresponding to the position of the positioning column 1222, and the positioning column 1222 is inserted into the positioning hole 119, so as to facilitate the assembly and fixation of the shell 11 and the breast cup 12.

[0055] Referring to Figure 6 , Figure 6 is Figure 1Figure 2 is a schematic diagram of the connection relationship between the first contact and the second contact in the embodiment. Further, the positioning column 1222 is formed with a mounting cavity, the conductive carrier 30 includes the first contact 31 arranged on the main machine 20 and electrically connected with the function control unit, and the second contact 32 arranged on the breast cup 12 and electrically connected with the function assembly 40, the first contact 31 is inserted into the mounting cavity and is in contact electrically connected with the second contact 32 to realize the power supply of the main machine 20 to the function assembly 40. And since the positioning column 1222 is located in the connection area 1051, the positioning column 1222 is located outside the liquid storage cavity 101 enclosed by the breast cup 12 and the shell 11, that is, the connection position of the first contact 31 and the second contact 32 is located outside the liquid storage cavity 101, so as to avoid the damage caused by the immersion of the first contact 31 and the second contact 32 in the milk.

[0056] In other embodiments, the positioning column 1222 can be arranged on the side of the main machine 20 facing the breast cup 12, the positioning column 1222 is formed with a mounting cavity, the second contact 32 is located in the mounting cavity, and the first contact 31 is inserted into the mounting cavity and is in contact electrically connected with the second contact 32 to realize the power supply of the main machine 20 to the function assembly 40.

[0057] Optionally, the first contact 31 is a rigid contact, and the second contact 32 is an elastic contact; optionally, the first contact 31 is an elastic contact, and the second contact 32 is a rigid contact; optionally, the first contact 31 and the second contact 32 are both rigid contacts; optionally, the first contact 31 and the second contact 32 are both elastic contacts.

[0058] Please continue to refer to Figure 6 In some embodiments, the extension directions of the first contact 31 and the second contact 32 are coaxial. In this embodiment, the mounting cavity can be a cavity penetrating through the positioning column 1222 along the axial direction of the positioning column 1222, and the first contact 31 and the second contact 32 are respectively inserted into the mounting cavity from opposite sides of the positioning column 1222 and contact each other.

[0059] Please refer to Figure 7 , Figure 7 Figure 3 is a schematic diagram of the connection relationship between the first contact and the second contact in another embodiment. In some embodiments, the extension directions of the first contact 31 and the second contact 32 intersect, for example, the extension directions of the first contact 31 and the second contact 32 are orthogonal. In this embodiment, the first contact 31 can be embedded in the mounting cavity from the ring side of the positioning column 1222 and contact the second contact 32 in the mounting cavity. The peripheral side of the first contact 31 is tightly attached to the side wall of the mounting cavity, that is, the positioning column 1222 plays a limiting role on the first contact 31, which improves the stability of the connection between the main machine 20 and the breast cup 12.

[0060] Please refer to Figure 5In some embodiments, the functional assembly 40 comprises a heating element 41 and a temperature sensor (not shown in the figure), the first contact 31 is provided with four, which are connected to the positive and negative poles of the heating element 41 and the positive and negative poles of the temperature sensor, respectively; the second contact 32 is also provided with four, which are one-to-one corresponding and electrically connected to the four first contacts 31.

[0061] The heating element 41 is in the form of a sheet and the heating element 41 matches the shape of the breast cup 12, so that the breast cup 12 can be uniformly heated, thereby making the contact surface temperature of the breast cup 12 uniform. The heating element 41 is provided with a plurality of through holes, and the opposite sides of the first cup body 121 and the second cup body 122 are provided with a concave-convex structure, for example, the first cup body 121 is provided with a convex portion, and the second cup body 122 is provided with a concave portion. When the heating element 41 is assembled, the convex portion on the first cup body 121 can pass through the through hole on the heating element 41 and be embedded in the concave portion of the second cup body 122. In this way, the stability of the assembly connection of the heating element 41 between the first cup body 121 and the second cup body 122 can be ensured, and the heating element 41 can be prevented from shifting during use.

[0062] The functional assembly 40 can also include devices for other functions such as massage, for example, the functional assembly 40 further comprises a vibrator, which is also embedded between the first cup body 121 and the second cup body 122 and electrically connected to the function control unit of the main machine 20 through the conductive carrier 30. The vibrator and the function control unit form a power circuit to generate vibration, which can massage the breast and promote the secretion of breast milk.

[0063] Please refer to Figure 2 , the function control unit and the negative pressure unit can be integrated on the same main control board 21, and the main machine 20 can further comprise a battery connected to the main control board 21, which can provide power for the breast pump during operation. Of course, the breast pump can also be powered by an external power source during operation.

[0064] Please refer to Figure 8 , Figure 8 is Figure 1 A cross-sectional view of the shell in an embodiment. In some embodiments, the shell 11 is provided with a first accommodating portion 115, the first accommodating portion 115 is connected with the negative pressure unit, and a deformable sealing element 13 is arranged between the first accommodating portion 115 and the negative pressure unit. At least part of the horn cavity 102 is bounded by the inner wall of the first accommodating portion 115. The deformable sealing element is configured to be deformed under the action of the negative pressure unit to form a negative pressure in the horn cavity 102.

[0065] Specifically, the first accommodating portion 115 is connected with the liquid outlet pipe 123 through the liquid inlet pipe 1151, that is, the horn cavity 102 is formed by the breast cup 12, the liquid outlet pipe 123, the liquid inlet pipe 1151, the first accommodating portion 115 and the deformable sealing piece 13, and the deformable sealing piece 13 can be deformed under the action of the negative pressure unit to change the space size of the horn cavity 102, so that a negative pressure is formed in the horn cavity 102, and then the milk liquid is drawn from the breast.

[0066] Please refer to Figure 2 and Figure 8 The first accommodating portion 115 is provided with a negative pressure interface 1152, and the host 20 is provided with a negative pressure connector 22, which can be docked with the negative pressure interface 1152 and communicate with the deformable cavity. The negative pressure unit includes a suction pump 29 connected with the negative pressure connector 22 through a pipeline. The deformable sealing piece 13 can be located in the first accommodating portion 115 or outside the first accommodating portion 115.

[0067] For the embodiment in which the deformable sealing piece 13 is located in the first accommodating portion 115, the deformable sealing piece 13 has an opening, and the opening of the deformable sealing piece 13 is sleeved on the negative pressure interface 1152 and forms a deformable cavity inside the first accommodating portion 115. During the negative pressure output of the suction pump 29, the suction pump 29 sucks the air in the deformable sealing cavity, so that the deformable sealing piece 13 contracts, thereby forming a negative pressure space between the outer wall of the deformable sealing piece 13 and the inner wall of the first accommodating portion 115, and the negative pressure in the negative pressure space acts on the breast through the liquid inlet pipe 1151 and the liquid outlet pipe 123, so that the breast secretes milk liquid. In this embodiment, the negative pressure interface 1152 can extend outward from the first accommodating portion 115 by a certain distance, the opening of the deformable sealing piece 13 has a first turned-up edge 131, the first turned-up edge 131 is sleeved on the end of the negative pressure interface 1152, and the negative pressure connector 22 is inserted into the negative pressure interface 1152, and the end of the negative pressure connector 22 presses the first turned-up edge 131 against the end of the negative pressure interface 1152. In this way, the first turned-up edge 131 is clamped between the negative pressure connector 22 and the negative pressure interface 1152, thereby ensuring the installation air tightness and stability of the deformable sealing piece 13. Since the deformable sealing piece 13 is located in the first accommodating portion 115 and shares the same negative pressure space with the milk liquid, the space occupation of the breast pump is reduced, and the volume of the breast pump can be designed to be smaller for easy carrying. At the same time, the deformable sealing piece 13 is arranged between the negative pressure interface 1152 and the negative pressure connector 22, which can prevent the milk liquid from entering the host 20 and causing short circuit and damage to the electronic devices in the host 20.

[0068] For the embodiment that the deformable seal 13 is located outside the first accommodating portion 115, the deformable seal 13 is sleeved on the negative pressure connector 22 and forms a deformable seal cavity in the negative pressure connector 22. The suction pump 29 can suck the air in the space formed by the outer wall of the deformable seal 13 and the inner wall of the negative pressure connector 22, so that the deformable seal 13 is inflated, thereby forming a negative pressure space between the inner wall of the deformable seal 13 and the inner wall of the first accommodating portion 115. The negative pressure in the negative pressure space acts on the breast through the liquid inlet pipe 1151 and the liquid outlet pipe 123, so that the breast secretes milk.

[0069] Please continue to refer to Figure 8 In some embodiments, a one-way valve 118 is arranged between the liquid storage cavity 101 and the horn cavity 102. The one-way valve 118 is used for allowing the liquid in the horn cavity 102 to flow to the liquid storage cavity 101, and preventing the liquid in the liquid storage cavity 101 from flowing into the horn cavity 102. For example, the first accommodating portion 115 extends toward the liquid storage cavity 101 and has a liquid discharge pipe 1153 which is integrally formed with the shell 11. The liquid discharge pipe 1153 can be formed of hard rubber, and the one-way valve 118 can be formed of soft rubber. The one-way valve 118 is detachably sleeved on the liquid discharge pipe 1153. The shape of the one-way valve 118 can be arbitrary, for example, vertical or flat. In the case that the one-way valve 118 is flat, the one-way valve 118 can include a connecting portion 1181 and a suction portion 1182. The connecting portion 1181 is nested on the outside of the liquid discharge pipe 1153, and the suction portion 1182 is in communication with the liquid discharge pipe 1153 through the connecting portion 1181. During the period that the suction pump 29 outputs negative pressure, the air pressure output by the suction pump 29 deforms the deformable seal 13, thereby reducing the air pressure in the first accommodating portion 115 to form negative pressure, so that the one-way valve 118 is suctioned, and the formed negative pressure acts on the breast through the liquid inlet pipe 1151 and the liquid outlet pipe 123. During the period that the suction pump 29 stops outputting negative pressure, the shape of the deformable seal 13 is restored, the air pressure in the first accommodating portion 115 is restored, the one-way valve 118 is no longer in the suction state, and the milk flows to the liquid storage cavity 101 under the action of gravity through the liquid discharge pipe 1153 and the one-way valve 118.

[0070] Please refer to Figure 9 , Figure 9 is Figure 1The schematic diagram of the cooperation relationship between the shell and the host and the breast cup in the embodiment. In some embodiments, the shell 11 includes a supporting part 111 and a raised part 112, the supporting part 111 is in contact with the breast cup 12, and the raised part 112 is protruded away from the breast cup 12. The host 20 is assembled on the supporting part 111 and in contact with the raised part 112, and the breast cup 12 is assembled on the supporting part 111, and the second contact 32 on the breast cup 12 is in contact with the first contact 31 on the host 20 to form a stable structure. For example, the transition between the host 20 and the raised part 112 is smooth, forming a flat or arc surface with flush or substantially flush surfaces, and the outer circumferential surface of the host 20 and the outer circumferential surface of the raised part 112 are arc surfaces, and the supporting part 111 has an elliptical profile, and the assembled host 20 and shell 11 are a semi-elliptical or semi-spherical body.

[0071] The host 20 includes a host shell 23, a first cover plate 24 and a second cover plate 25 arranged at an angle, and the first cover plate 24 and the second cover plate 25 form an enclosed host space with the host shell 23, and the angle formed by the first cover plate 24 and the second cover plate 25 matches the angle formed between the raised part 112 and the supporting part 111, wherein the first cover plate 24 can be attached to the side of the supporting part 111 away from the breast cup 12, and the second cover plate 25 can be attached to the outer surface of the raised part 112.

[0072] The cooperating surface between the supporting part 111 and the first cover plate 24 and the breast cup 12 is in a stepped shape, for example, the supporting part 111 includes a first step 1111 and a second step 1112, and the second step 1112 extends outward from the first step 1111. When the breast cup 12 is in contact with the supporting part 111, the sealing element 120 on the breast cup 12 can be fixedly attached to the inner ring side surface of the first step 1111 to form a sealed liquid storage cavity 101 between the breast cup 12 and the shell 11, and the second step 1112 of the supporting part 111 forms an assembly area, i.e. a second area 105, which does not overlap with the liquid storage cavity 101, and the first contact 31 and the second contact 32 are in contact and electrically connected in the assembly area.

[0073] A magnetic member 26 is arranged between the second cover plate 25 and the raised part 112 to attract and fix the second cover plate 25 and the raised part 112. The negative pressure connector 22 is arranged on the second cover plate 25, and the negative pressure connector 22 is pressed into the negative pressure interface 1152, and the magnetic force direction of the magnetic member 26 is the same as the extension direction of the negative pressure connector 22 and the negative pressure interface 1152 to further ensure the reliability of the connection between the negative pressure connector 22 and the negative pressure interface 1152. The first contact 31 is arranged on the first cover plate 24, and the first contact 31 can be clamped in the positioning column 1222 and in contact with the second contact 32.

[0074] In addition, the main machine shell 23 has an outer edge portion 231 extending out of the second cover plate 25, the outer edge portion 231 overlaps the raised portion 112, and the outer edge portion 231 is tangent to the outer surface of the raised portion 112, thereby achieving smooth transition of the main machine shell 23 and the raised portion 112.

[0075] The first cover plate 24 and the bearing portion 111 are provided with a clamping structure, and / or the second cover plate 25 and the raised portion 112 are provided with a clamping structure. For example, the first cover plate 24 is provided with a first plug 27, the first step 1111 of the bearing portion 111 is provided with a first slot 113 matched with the first plug 27, the second cover plate 25 is provided with a second slot 28, and the raised portion 112 is provided with a second plug 114 matched with the second slot 28. The extension direction of the first slot 113 and the second slot 28 is not parallel, and the clamping structure formed by the first slot 113 and the first plug 27 and the clamping structure formed by the second slot 28 and the second plug 114 can restrict each other from moving, so as to achieve reliable connection of the main machine 20 and the shell 11.

[0076] In the embodiment, when the main machine 20 is assembled with the shell 11 and the breast cup 12, the outer edge portion 231 on the main machine shell 23 is matched with the outer surface of the raised portion 112, the negative pressure connector 22 is guided to slide along the negative pressure interface 1152, until the negative pressure connector 22 is inserted into the combined state of the negative pressure interface 1152, at this time, the first cover plate 24 is attached to the bearing portion 111, the second cover plate 25 is attached to the raised portion 112, the first contact 31 is inserted into the positioning column 1222, the first plug 27 is inserted into the first slot 113, the second plug 114 is inserted into the second slot 28, and the relative fixation of the main machine 20 and the shell 11 is achieved, so as to avoid relative movement of the main machine 20 and the shell 11 after being installed in place.

[0077] The above only describes some embodiments of the present application, and does not limit the protection scope of the present application, and any equivalent device or equivalent process transformation using the content of the specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A breast pump, characterized in that The application relates to a breast pump, which comprises a shell, a breast cup and a main machine. The shell comprises a first area and a second area. The first area and the second area do not overlap on the projection of the breast cup. The breast cup and the first area of the shell enclose a liquid storage cavity.

2. The breast pump of claim 1, wherein, The main machine is arranged on the side of the shell away from the breast cup.

3. The breast pump of claim 2, wherein, The main machine is electrically connected with the functional component through a conductive carrier.

4. A breast pump according to claim 2 or 3, characterised in that, The conductive carrier is arranged in the second area of the shell.

5. The breast pump of claim 4, wherein, The second area comprises a connecting area and a liquid outlet area, which do not overlap on the projection of the breast cup.

6. Breast pump according to any one of claims 1-3, characterized in that The liquid outlet area is provided with a liquid return channel.

7. A breast pump according to claim 2 or 3, wherein, The liquid return channel is used for connecting the liquid storage cavity with the outside.

8. The breast pump of claim 7, wherein, The conductive carrier is arranged in the connecting area. The liquid outlet area is arranged at the position of the central axis of the shell. The connecting area is symmetrically arranged on both sides of the central axis.

9. The breast pump of claim 8, wherein, The liquid outlet area is a closed ring structure. The liquid return channel is defined by the inner wall of the ring structure. One end of the liquid return channel is in communication with the liquid storage cavity. The other end of the liquid return channel extends to the edge of the shell. The breast cup comprises an inner side and an outer side arranged oppositely. The breast cup is provided with a avoiding slot. The connecting area is adjacent to the inner side of the breast cup. The liquid outlet area passes through the avoiding slot and extends to the outer side of the breast cup. The breast cup is provided with a sealing element. The sealing element is arranged on the side of the breast cup facing the shell. The sealing element is sealed and matched with the inner wall of the shell to form the liquid storage cavity. The sealing element divides the shell into the first area and the second area. The side of the breast cup facing the main machine or the side of the main machine facing the breast cup is provided with a positioning column. The shell is provided with a positioning hole corresponding to the position of the positioning column. The positioning hole is arranged in the connecting area. The positioning column is inserted into the positioning hole. The positioning column is formed with a mounting cavity. The conductive carrier comprises a first contact arranged on the main machine and a second contact arranged on the breast cup and electrically connected with the functional component. The first contact is arranged in the mounting cavity. The first contact is inserted into the mounting cavity and is in contact with the second contact to realize the power supply of the main machine to the functional component. The second contact is arranged in the mounting cavity. The first contact is inserted into the mounting cavity and is in contact with the second contact to realize the power supply of the main machine to the functional component. The breast cup comprises a liquid outlet pipe, a first cup body and a second cup body. The outer diameter of the second cup body gradually increases away from the liquid outlet pipe. The second cup body is provided with a mounting hole matched with the shape of the liquid outlet pipe. The second cup body is sleeved on the outer side of the liquid outlet pipe through the mounting hole and is matched with the side of the first cup body facing the liquid outlet pipe. The functional component is embedded between the first cup body and the second cup body. One end of the second contact is electrically connected with the functional component. The other end of the second contact extends to the surface of the second cup body.

10. The breast pump of any one of claims 1-3, wherein, The breast cup and the shell enclose a horn cavity for accommodating a breast, and a one-way valve is arranged between the horn cavity and the liquid storage cavity, for allowing liquid in the horn cavity to flow to the liquid storage cavity and preventing liquid in the liquid storage cavity from flowing into the horn cavity.

Images