Breast pump connecting piece and breast pump

Abstract

The utility model relates to the technical field of mother and baby products, in particular to a breast pump connecting piece and a breast pump, the breast pump connecting piece comprises a connecting cylinder, and the connecting cylinder is provided with a front cylinder opening and a rear cylinder opening which are opposite; the periphery of the rear cylinder opening extends outwards to form a rear cavity, the connecting cylinder is communicated with the rear cavity, a through hole is formed in the bottom of the connecting cylinder, and a second through hole is formed in the rear cavity. According to the breast pump, the integrated rear shell is arranged, the main machine assembly, the milk storage chamber, the horn cavity and the negative pressure cavity are integrated in the upper direction, the lower direction, the front direction and the rear direction of the rear shell respectively, connection and installation structures do not need to be additionally arranged between all the parts, the structure of the breast pump is greatly simplified, and disassembly and installation are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of mother and baby products, in particular to a breast pump connector and a breast pump. Background Art

[0002] A breast pump mainly includes a main unit, a three-way assembly, and a milk storage chamber. The working principle is that the main unit drives the three-way assembly to simulate the sucking action so that breast milk enters the milk storage chamber to complete the collection of breast milk. Existing electric breast pumps include two types: split type and integrated type. For the split type, the main unit is separated from the three-way assembly. The external main unit is connected to the three-way assembly through a long hose, and the three-way assembly is communicated with the milk storage chamber. High-efficiency collection of breast milk is achieved through the high power of the external main unit, but the split-type breast pump has a large storage volume and is inconvenient to carry and use. For the integrated breast pump, the main unit, the three-way assembly, and the milk storage chamber are integrally designed, with a small volume and convenient to carry. It can be used by postpartum mothers to collect breast milk at any time outside and can be worn without being held by hand.

[0003] Chinese Patent CN116650742A discloses a breast pump, which includes a housing, a breast attachment, a negative pressure assembly, and a deformable suction part; the housing is provided with a milk storage cavity and a negative pressure cavity, the breast attachment includes a flange for fitting with the breast and a nipple passage adapted to place the nipple, the nipple passage is communicated with the milk storage cavity, the negative pressure assembly is used to provide negative pressure to the negative pressure cavity, the deformable suction part is hermetically connected to the orifice of the negative pressure cavity, and transmits the negative pressure provided by the negative pressure assembly to the breast attachment so that one side of the deformable suction part is communicated with the negative pressure cavity.

[0004] Chinese Utility Model CN218833270U discloses a breast pump, which includes a milk storage bottle, a suction silicone bowl, a silicone flange, and a main unit; the suction silicone bowl is installed inside the milk storage bottle, a one-way valve is arranged on the side wall of the suction silicone bowl, the suction silicone bowl is provided with a milk collection cavity and a negative pressure cavity, and the milk collection cavity and the negative pressure cavity are separated by a deformable wall of the suction silicone bowl; the outer periphery of the silicone flange is tightly connected to the milk storage bottle, the central body of the silicone flange is tightly connected to the suction silicone bowl, a collection hole is opened in the central body, the collection hole is communicated with the milk collection cavity, and a milk storage cavity is formed by the inner wall of the milk storage bottle and the inner wall of the silicone flange; the main unit is installed on the outer periphery of the milk storage bottle, and the suction end of the main unit is communicated with the negative pressure cavity. The main unit is used to form negative pressure in the negative pressure cavity so that the deformable wall can reciprocate between the milk collection cavity and the negative pressure cavity.

[0005] However, there are many parts in the breast pump. Structures that can cooperate with each other need to be set between parts such as the negative pressure cavity, the milk storage bottle, the silicone flange, the main unit, and the housing to realize the installation of the entire breast pump. Its structure is complex and the installation is cumbersome. Especially in order to control the formation of positive pressure and negative pressure in the negative pressure cavity through a negative pressure air pump to promote breast milk secretion, the connection sealing performance between some parts is required to be relatively high, and an additional sealing structure needs to be set.

[0006] The milk outlet channel of the existing wearable breast pump is long and narrow, occupying too much space of the breast pump, resulting in an increase in the thickness of the breast pump and uncomfortable wearing. In addition, wearable breast pumps are mainly designed for working mothers to use in the workplace and public places. If the breast pump is too thick, it will make the breasts of working mothers protrude too much after wearing, which not only affects the appearance but also cannot protect privacy. Moreover, the components of the breast pump are unevenly distributed, and it is easy to displace and drag the breasts during the wearing process, affecting breast health. Summary of the Invention

[0007] The present invention aims to solve at least the technical problems of "the existing breast pump is too thick" and "the weight distribution of each component of the breast pump is uneven" in the prior art. For this purpose, the present invention provides a breast pump connector and a breast pump, which can integrate the horn cavity, the negative pressure cavity, the main body module and the milk storage chamber in front of, behind, above and below respectively, optimize the structure of the breast pump, reduce the thickness of the breast pump, and make the distribution of each component uniform.

[0008] A breast pump connector includes a connecting cylinder, and the connecting cylinder has a front cylinder opening and a rear cylinder opening opposite to each other; a rear chamber is formed by the periphery of the rear cylinder opening extending outward, the connecting cylinder communicates with the rear chamber, a first through hole is provided on the bottom surface of the connecting cylinder, and a second through hole is provided on the rear chamber.

[0009] The rear chamber includes a corrugated plate connecting the rear cylinder opening, that is, a rear chamber side wall vertically extending from the periphery of the corrugated plate, so that the rear chamber is in a groove shape; the second through hole is provided at the top of the rear chamber side wall.

[0010] A breast pump has the above-mentioned breast pump connector; the breast pump has a front shell and a rear shell that are cooperatively connected, a horn cavity is provided on the front side surface of the front shell, and the front cylinder opening faces the horn cavity.

[0011] The rear shell has a left rear shell part, a right rear shell part, and a middle rear shell part connecting the two; the rear chamber side wall of the rear chamber is connected to the middle rear shell part; the breast pump connector is provided in the middle of the rear shell and is integrally formed with the rear shell. The left rear shell part and the right rear shell part are located on both sides of the connecting cylinder.

[0012] A clearance is dug in the middle rear shell part opposite to the rear chamber.

[0013] A first partition plate and a second partition plate symmetrically extend from the left and right side walls of the connecting cylinder. The first partition plate is connected to the left rear shell part, and the second partition plate is connected to the right rear shell part, thereby dividing the rear shell into an upper rear shell part and a lower rear shell part.

[0014] The front housing is provided with the through-going horn cavity, and the small-mouth end of the horn cavity is connected to the front barrel opening of the connecting cylinder; the front housing has a left front housing part, a right front housing part and a middle front housing part; the horn cavity is located in the middle front housing part; the front housing extends and connects to the front left side edge of the left front housing part and the front right side edge of the right front housing part respectively from the left and right sides of the small-mouth end of the horn cavity, the front left side edge is cooperatively connected to the first partition board, and the front right side edge is cooperatively connected to the second partition board, so as to divide the inner cavity of the breast pump into an upper installation cavity and a lower milk storage chamber.

[0015] A sealing ring is provided at the connection between the front housing and the rear housing, and the sealing ring seals and connects the front left side edge and the first partition board, the front right side edge and the second partition board, and the small-mouth end of the horn cavity and the connecting cylinder.

[0016] In another embodiment of the present utility model, the front housing has a left front housing part, a right front housing part, and a middle front housing part connecting the two; the middle front housing part is provided with the horn cavity, and the small-mouth end of the horn cavity is integrally formed with the front barrel opening of the connecting cylinder.

[0017] The breast pump further includes a rear housing, which is matched with the front housing. The rear housing is provided with a matching groove at a position facing the rear chamber, and the rear chamber is partially accommodated in the matching groove.

[0018] The front housing extends and connects to the front left side edge of the left front housing part and the front right side edge of the right front housing part respectively from the left and right sides of the small-mouth end of the horn cavity; the rear housing has a left rear housing part, a right rear housing part, and a middle rear housing part connecting the two; a first partition board and a second partition board symmetrically extend from the left and right side walls of the matching groove respectively, the first partition board is connected to the left rear housing part, and the second partition board is connected to the right rear housing part; the front left side edge is cooperatively connected to the first partition board, and the front right side edge is cooperatively connected to the second partition board, so as to divide the inner cavity of the breast pump into an upper installation cavity and a lower milk storage chamber.

[0019] The breast pump has a main machine module, which is detachably connected to the front housing and the rear housing, and includes a central driving assembly and symmetrically arranged power supply assemblies. The power supply assemblies are electrically connected to the driving assembly, and the suction port of the driving assembly is communicated with a negative pressure cavity arranged in the rear chamber.

[0020] A milk outlet channel is provided at the top of the front housing or the rear housing. When the main machine module is buckled with the front housing and the rear housing, the bottom of the main machine module blocks the opening of the milk outlet channel.

[0021] The breast pump described in the present utility model simplifies the structure of the breast pump by integrating the host assembly, milk storage chamber, horn cavity, and negative pressure cavity in the up, down, front, and rear directions of an integrated breast pump connector, eliminating the need for additional connection and installation structures between the components, and facilitating disassembly and assembly.

[0022] The breast pump described in the present utility model integrates the host assembly, milk storage chamber, horn cavity, and negative pressure cavity in the up, down, front, and rear directions of the breast pump connector, reducing the thickness of the breast pump in the front-rear direction. After wearing, the chest will not protrude excessively, presenting an overall streamlined shape and beautiful appearance.

[0023] The breast pump described in the present utility model places the negative pressure cavity and its silicone deformation part directly behind the horn cavity, minimizing power loss caused by the deformation of the negative pressure cavity, ensuring good positive and negative pressure changes in the horn cavity, and high lactation efficiency.

[0024] The breast pump described in the present utility model separates the space between the rear housing and the front housing into an upper installation cavity and a lower milk storage chamber by connecting the first partition with the first mating edge and the second partition with the second mating edge, and the host module is installed in the installation cavity. This design can, on the one hand, prevent milk from entering the installation cavity and contaminating or damaging the host module, and on the other hand, the host module is located at the top of the breast pump, making installation and disassembly very convenient. In addition, a sealing ring is provided at the connection between the front housing and the rear housing. The sealing ring, the first mating edge, the first partition, the second mating edge, and the second partition cooperate to isolate the milk passage and the gas passage of the breast pump, ensuring that the milk passage and the gas passage do not affect each other, and the milk flows smoothly without residue.

[0025] The milk outlet channel of the milk storage chamber extends directly to the top of the housing, shortening the channel path, reducing the space occupied by the channel of the milk storage chamber, and using the host module to cover the opening, effectively reducing the thickness of the breast pump and making it more comfortable to wear. The components with relatively large weight ratios of the drive assembly and the power supply assembly are respectively arranged in a central and symmetric structure, making the weight distribution of the host module more uniform, and it is not easy to shift or drag the breast during wearing, protecting breast health.

[0026] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and / or additional aspects and advantages of the present utility model will become apparent and understandable from the description of the embodiments in conjunction with the following drawings, where:

[0028] Figure 1 This is a schematic structural diagram of the connecting piece of the breast pump of the present utility model.

[0029] Figure 2 This is a schematic structural diagram of the rear housing of the breast pump of the present utility model.

[0030] Figure 3 This is another schematic structural diagram of the rear housing of the breast pump of the present utility model.

[0031] Figure 4 This is a schematic structural diagram of the breast pump of the present utility model.

[0032] Figure 5 This is an exploded schematic structural diagram of the breast pump of the present utility model.

[0033] Figure 6 This is a cross-sectional view of the breast pump of the present utility model.

[0034] Figure 7 This is another exploded schematic structural diagram of the breast pump of the present utility model

[0035] Figure 8 This is an exploded schematic structural diagram of the breast pump of the present utility model from another angle.

[0036] Figure 9 This is a schematic combined structure diagram of the front housing and the negative pressure chamber of another embodiment of the breast pump of the embodiment of the present utility model;

[0037] Figure 10 For Figure 9 exploded structural diagram;

[0038] Figure 11 This is a schematic structural diagram of the rear housing of another embodiment of the breast pump of the embodiment of the present utility model;

[0039] Figure 12 This is an exploded schematic structural diagram of the breast pump of the embodiment of the present utility model;

[0040] Figure 13 This is an exploded schematic diagram of the main machine module of the breast pump of the embodiment of the present utility model. Detailed implementation manners

[0041] The following details the embodiments of the present utility model. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.

[0042] In the description of the present utility model, it should be understood that when it comes to orientation descriptions, such as the upper, lower, front, rear, left, right, top, bottom, etc., the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0043] In the description of the present utility model, the meaning of "several" is one or more, the meaning of "multiple" is two or more, "greater than", "less than", "exceeding", etc. are understood as not including the recited number, and "above", "below", "within", etc. are understood as including the recited number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0044] In the description of the present utility model, unless otherwise clearly defined, words such as "arrangement", "installation", "connection", etc. should be understood in a broad sense, and those skilled in the relevant technical field can reasonably determine the specific meanings of the above words in the present utility model in combination with the specific content of the technical solution.

[0045] The breast pump according to an embodiment of the present utility model will be described below with reference to the drawings. For the convenience of understanding and description, the side of the breast pump that is close to the breast is defined as the front of the breast pump, and the other side opposite to the front of the breast pump is defined as the rear of the breast pump.

[0046] Refer to Figure 1 , the present utility model discloses a breast pump connector 100, which has a connecting cylinder 110. The connecting cylinder 110 has a front cylinder opening 111 and a rear cylinder opening 112 that are opposite to each other. The front cylinder opening 111 faces and connects to the following horn cavity 11. A rear chamber 120 is formed by the lateral extension of the periphery of the rear cylinder opening 112. The rear chamber 120 is used to accommodate the following negative pressure chamber 200. The connecting cylinder 110 communicates with the rear chamber 120. A first through hole 113 is provided at the bottom of the connecting cylinder 110. The first through hole 113 is used to communicate with the following milk storage chamber 40. A second through hole 121 is provided on the rear chamber 120. The second through hole 121 is used to connect to the following host module 400. Thus, through the breast pump connector 100, the horn cavity 11, the negative pressure chamber 200, the host assembly, and the milk storage chamber 40 are respectively integrated in the front, rear, upper, and lower directions of the breast pump, facilitating the connection between various components, reducing additional redundant connection structures, and making the following breast pump light and delicate in structure and convenient to use.

[0047] Meanwhile, arranging the host component 400 and the milk storage chamber 40 above and below the breast pump connector 100 respectively can also reduce the thickness of the breast pump in the front-back direction, making its structure compact, with the components evenly distributed and reasonably laid out, and the shape being small and beautiful. The reduction in the thickness of the breast pump enables working mothers to have a similar breast shape when wearing it in public places or workplaces as when not wearing it, which is both beautiful and does not disclose the privacy of working mothers, and is very practical.

[0048] Meanwhile, the rear chamber 120 includes a corrugated plate 122 connected to the rear barrel opening 112, that is, a rear chamber side wall 123 vertically extending from the periphery of the corrugated plate 122, making the rear chamber 120 in a groove shape. The second through hole 121 is provided on the rear chamber side wall 123, preferably at the top of the rear chamber side wall 123.

[0049] The present utility model also provides a breast pump having the above-mentioned breast pump connector 100. The breast pump has a front housing 10 and a rear housing 20, which are connected to each other to form the inner cavity of the breast pump. A horn cavity 11 is provided on the front side of the front housing 10. The front barrel opening 111 faces the horn cavity 11 of the breast pump.

[0050] In an embodiment of the present utility model, referring to Figure 2 and Figure 3 , the breast pump connector 100 is arranged in the middle of the rear housing 20 and is integrally formed with the rear housing 20. Specifically, the rear housing 20 has a left rear housing part 21, a right rear housing part 22, and a middle rear housing part 23 connecting the two. The rear chamber side wall 123 of the rear chamber 120 is connected to the middle rear housing part 23. The left rear housing part 21 and the right rear housing part 22 are located on both sides of the connecting barrel 110.

[0051] Preferably, an avoidance space 24 is dug in the middle rear housing part 23 opposite to the rear chamber 120, so that the negative pressure chamber 200 accommodated in the rear chamber 120 is exposed outside the rear housing 20, facilitating the installation and disassembly of the negative pressure chamber 200.

[0052] Referring to Figure 3 , a first partition 114 and a second partition 115 symmetrically extend from the left and right side walls of the connecting barrel 110. The first partition 114 is connected to the left rear housing part 21, and the second partition 115 is connected to the right rear housing part 22, thereby dividing the rear housing into an upper rear housing part 20a and a lower rear housing part 20b.

[0053] Referring to Figure 4 and Figure 5, the rear chamber 120 houses the negative pressure chamber 200. The negative pressure chamber 200 includes a silica gel deformation part 210 and a groove-shaped rear cover 220. The silica gel deformation part 210 is sealingly connected to the corrugated plate 122 of the rear chamber 120, and the rear cover 220 fits against the rear chamber side wall 123 of the rear chamber 120, thereby placing the negative pressure chamber 200 in the rear chamber 120. The rear cover 220 is provided with a third through hole 221 opposite the second through hole 121. The main body module 400 is disposed at the upper part 20a of the rear shell. The main body module 400 alternately inflates or deflates the negative pressure chamber 200 through an air pipe 401 passing through the second through hole 121 and the third through hole 221. The air pipe 401 is sealingly connected to the third through hole 221. The main body module 400, the air pipe 401 and the negative pressure chamber 200 form a gas passage.

[0054] The central part 211 of the silica gel deformation part 210 protrudes into the rear barrel opening 112 of the connecting barrel 110. When the main body module 400 inflates the negative pressure chamber 200, the gas in the negative pressure chamber 200 increases and presents a positive pressure, then the central part 211 of the silica gel deformation part 210 expands towards the front barrel opening 111 of the connecting barrel 110, thereby reducing the space in the horn cavity 11 and the connecting barrel 110. At this time, if the front shell 10 is sealingly attached to the breast, the air in the horn cavity 11 and the connecting barrel 110 will be compressed and its pressure will increase. Then the main body module 400 stops inflating the negative pressure chamber 200 and evacuates the gas from the negative pressure chamber 200, so that the gas in the negative pressure chamber 200 decreases and presents a negative pressure, then the silica gel deformation part 220 resets under the action of its own elastic force, and the space in the horn cavity 11 and the connecting barrel 110 increases and its pressure decreases. Repeating this process produces the effect of simulating a baby sucking and promotes the breast to secrete milk.

[0055] Referring to Figures 4 - 7 , the front shell 10 is provided with a horn cavity 11 penetrating the front shell 10, and the small-mouth end 11a of the horn cavity 11 is connected to the front barrel opening 111 of the connecting barrel 110.

[0056] The front shell 10 has a left front shell part 12, a right front shell part 13 and a middle front shell part 14. The horn cavity 11 is located in the middle front shell part 14. The front shell 10 extends and connects the front left side 15 of the left front shell part 12 and the front right side 16 of the right front shell part 13 respectively from the left and right sides of the small-mouth end 11a of the horn cavity 11. The front left side 15 is cooperatively connected to the first partition plate 114, and the front right side 16 is cooperatively connected to the second partition plate 115, thereby dividing the inner cavity of the breast pump into an upper installation cavity 30 and a lower milk storage chamber 40. The installation cavity 30 is used to install the main body module 400. The milk storage chamber 40 is used to collect and store milk.

[0057] Preferably, a sealing ring 50 is provided at the connection between the front housing 10 and the rear housing 20. The sealing ring 50 seals and connects the front left side 15 and the first partition 114, the front right side 16 and the second partition 115, the small-mouth end 11a of the horn cavity 11 and the front barrel opening of the connecting tube 110, as well as other edge connection parts between the front housing 10 and the rear housing 20.

[0058] Specifically, the sealing ring 50 has a sealing ring body 51 and sealing strips 52 provided on both sides of the sealing ring body. The sealing ring body 51 seals and connects the small-mouth end 11a of the horn cavity 11 and the front barrel opening of the connecting tube 110; the two sealing strips 52 respectively seal and connect the front left side 15 and the first partition 114, and the front right side 16 and the second partition 115.

[0059] Refer to Figure 6 and Figure 7 As shown in [relevant figure numbers], the connecting tube 110 communicates with the milk storage chamber 40 through the first through hole 113. A one-way valve 114 is provided at the first through hole 113. Milk flows into the connecting tube 110 through the horn cavity 11, and then enters the milk storage chamber 40 through the one-way valve 114. The one-way valve 114 controls that milk can only flow into the milk storage chamber 40 and cannot flow out from the milk storage chamber 40. The horn cavity 11, the connecting tube 110, the first through hole 113 and the milk storage chamber 40 form a milk passage. In the present utility model, the one-way valve 114 is provided at the first through hole 113 and is located at the top of the milk storage chamber 40. Milk enters the milk storage chamber 40 by relying on its own gravity through the one-way valve 114, with smooth flow and no residue, which helps to secrete milk and solves the problem of the pressure caused by milk entering from the bottom of the milk storage chamber 40 and pushing the milk inside the milk storage chamber 40 upward in the prior art.

[0060] The sealing ring 50, the front left side 15 and the first partition 114, and the front right side 16 and the second partition 115 isolate the milk passage and the gas passage of the breast pump, so that the milk passage and the gas passage do not affect each other, and the milk flows smoothly without residue.

[0061] Refer to Figure 5 As shown in [relevant figure number], a breast pad 17 is attached to the horn cavity 11, so that when the horn cavity fits the breast, it is soft and comfortable and has good sealing performance.

[0062] Refer to Figure 9 and Figure 10 As shown in [relevant figure numbers], another embodiment of the breast pump of the present utility model is shown. The breast pump connector 100 is provided in the middle of the front housing 10'. Specifically, the front housing 10' has a left front housing part 12', a right front housing part 13', and a middle front housing part 14' connecting the two. A horn cavity 11 is provided on the middle front housing part 14'. The small-mouth end 11a of the horn cavity 11 is integrally formed with the front barrel opening 111 of the connecting tube 110.

[0063] The front housing 10' extends and connects to the front left side 15' of the left part 12' of the front housing and the front right side 16' of the right part 13' of the front housing respectively from the left and right sides of the small-mouth end 11a of the horn cavity 11, thereby dividing the front housing 10' into an upper part 10a and a lower part 10b of the front housing.

[0064] Referring to Figure 11 , the breast pump further includes a rear housing 20', and the rear housing 20 matches the front housing 10'. The rear housing 20' has a left part 21' of the rear housing, a right part 22' of the rear housing, and a middle part 23' of the rear housing connecting the two. A mating groove 25 is provided at a position of the middle part 23' of the rear housing facing the rear chamber 120, and a part of the rear chamber 120 is received in the mating groove 25. A first partition 114' and a second partition 115' symmetrically extend from the left and right side walls of the mating groove 25. The first partition 114' connects to the left part 21' of the rear housing, and the second partition 115' connects to the right part 22' of the rear housing, thereby dividing the rear housing 20' into an upper part 20'a and a lower part 20'b of the rear housing. The front left side 15' is matingly connected to the first partition 114', and the front right side 16' is matingly connected to the second partition 115', thereby dividing the inner cavity of the breast pump into an upper installation cavity and a lower milk storage chamber 40. The installation cavity is used to install the main machine module 400. The milk storage chamber 40 is used to collect and store breast milk.

[0065] In another embodiment of the present invention, as Figures 3 - 5 , and Figure 12 shown, the breast pump includes a housing 1 composed of a front housing 10 and a rear housing 20 and a main machine module 400. The main machine module 400 and the housing 1 adopt a detachable connection structure, and the electrical components are centrally arranged in the main machine module 400. When the breast pump is cleaned, it is separated from the electrical components, and the cleaning is safer. A milk storage chamber 40, a negative pressure chamber 200, and a horn cavity 11 are arranged in the housing 1. The horn cavity 11 and the milk storage chamber 40 adopt a one-way communication structure to prevent the breast milk in the milk storage chamber 40 from flowing back. The negative pressure chamber 200 is located on one side of the horn cavity 11. When in use, the horn cavity 11 fits against the breast, and the negative pressure chamber 200 simulates the sucking action of a baby through pressure change and deformation, thereby sucking out the breast milk.

[0066] The pressure change of the negative pressure chamber 200 is adjusted by the main machine module 400. The main machine module 400 includes a driving component 410 and a power supply component 420. The driving component 410 is electrically connected to the power supply component 420, and the suction port of the driving component 410 is communicated with the negative pressure chamber 200. The driving component 410 adopts a gas pump structure to realize the functions of air extraction and air discharge.

[0067] The component adopts a central structure, that is, the driving component 410 is placed in the middle of the host module 400, while the power supply component 420 adopts a symmetric layout and is divided into two parts and placed on both sides of the driving component 410. Since the driving component 410 and the power supply component 420 account for most of the weight of the host module 400, the driving component 410 and the power supply component 420 are reasonably distributed, making the weight distribution of the host module 400 more uniform. When the mother wears the breast pump, the weight of the host module 400 is evenly distributed above the breast, avoiding the situation that the breast pump slips or pulls the breast due to uneven weight distribution of the breast pump, protecting the normal development of the breast and preventing the breast from deforming.

[0068] Among them, the milk storage chamber 40 is provided with a milk outlet channel 41, and the milk outlet channel 41 extends to the top of the housing 1. When the host module 400 and the housing 1 are buckled, the bottom of the host module 400 blocks the opening of the milk outlet channel. When the driving component 410 evacuates the negative pressure chamber 200, the volume of the negative pressure chamber 200 decreases, and the volume of the horn chamber 11 increases, forming a negative pressure environment. At this time, breast milk is sucked out. When the driving component 410 inflates the negative pressure chamber 200, the volume of the negative pressure chamber 200 increases, and the volume of the horn chamber 11 decreases, forming a positive pressure environment, and the breast milk is pushed into the milk storage chamber 40. The breast milk in the milk storage chamber 40 increases, and the milk outlet channel 41 communicates with the outside, so that the internal pressure of the milk storage chamber 40 is kept consistent with the outside atmospheric pressure.

[0069] Specifically, after the host module 400 and the housing 1 are buckled, there is a gap between the opening of the milk outlet channel and the bottom of the host module 400. When the breast pump is in the storage state or the use state, the host module 400 can block the opening of the milk outlet channel 41, preventing external pollutants from entering the milk storage chamber 40 through the opening of the milk outlet channel 41, and can also keep the milk outlet channel communicating with the outside, ensuring that the internal pressure and the external pressure of the milk storage chamber 40 are equal, so that the breast milk can flow smoothly into the milk storage chamber 40. If the milk outlet channel 41 is in a closed state, as the amount of breast milk in the milk storage chamber 40 increases, the pressure in the milk storage chamber 40 increases, and the pressure difference between the horn chamber 11 and the milk storage chamber 40 decreases, and it will be difficult for the breast milk to flow into the milk storage chamber 40, affecting the working efficiency of the breast pump.

[0070] The breast pump of the present invention optimizes the structure of the milk outlet channel 41 of the milk storage chamber 40, so that the breast pump can ensure the hygiene of the milk storage chamber 40 in any state and reduce pollution. The opening position of the milk outlet channel 41 is optimized, and the path of the milk outlet channel 41 is shortened, so that the milk outlet channel 41 does not occupy the lateral space of the breast pump, which is beneficial to reducing the thickness of the breast pump and making it more comfortable to wear. The driving component 410 and the power supply component 420 are symmetrically arranged in the host module 400, making the weight distribution of the host module 400 more uniform, the breast pump more stable to wear and reducing breast pulling, protecting breast health.

[0071] In some embodiments of the present invention, such as Figure 3, Figure 6 As shown in the figure, the front housing includes a connecting cylinder 110, a horn cavity 11, and a breast pad 17. The connecting cylinder 110 is disposed on one side of the negative pressure cavity 200. One side of the horn cavity 11 is communicated with the connecting cylinder 110, and a breast pad 17 is provided on the opening surface of the other side.

[0072] Specifically, the front housing is successively provided with a connecting cylinder 110, a horn cavity 11, and a breast pad 17. The connecting cylinder 110 is located at the end of the horn cavity 11. The breast pad 17 is made of silicone material and fits the opening of the horn cavity 11. When the horn cavity 11 is attached to the breast, the breast pad 17 is attached to the breast, which can make the inside of the connecting cylinder 110 better sealed and avoid air leakage from affecting the milk suction effect. The silicone material breast pad 17 can also reduce the sensitivity of the breast and make it more comfortable to wear.

[0073] In some embodiments of the present invention, as Figure 6 shown, the contour of the horn cavity 11 is arranged to imitate the shape of the breast. The breast pad 17 is disposed at the opening of the horn cavity 11, and the breast pad 17 is used to fit the breast.

[0074] Specifically, the contour of the horn cavity 11 matches the contour of the breast. When the breast pump is attached to the breast, it can reduce the pressure feeling of the horn cavity 11 on the breast. Compared with the conventional shape channel of the existing breast pump, the horn cavity 11 of this embodiment reduces the pressure on the breast through bionic modeling, can reduce the depth of the horn cavity 11, and reduce the thickness of the breast pump. The bionic modeling can also increase the fitting area between the horn cavity 11 and the breast, and the fitting seal is better. And it can make the weight of the breast pump be distributed on the breast surface, avoiding the breast from being deformed due to concentrated force.

[0075] In some embodiments of the present invention, as Figure 6 shown, a silicone deformation part 210 is provided between the connecting cylinder 120 and the negative pressure cavity 200, and the surface contour of the horn cavity 11 at the joint with the silicone deformation part 210 matches the contour of the silicone deformation part 210.

[0076] Specifically, the cross-section of the silicone deformation part 210 is in a flanging shape, which is easy to deform and has a relatively large deformation amount, increasing the volume change of the space between the negative pressure cavity 200, the connecting cylinder 120, and the horn cavity 11. In other words, it increases, thereby improving the milk suction efficiency. The silicone deformation part 210 is made of silicone material, and the elastic deformation effect is better. In order to make the sealing between the housing and the silicone deformation part 210 better, the contour of the area where the housing and the silicone deformation part 210 are attached matches the contour of the silicone deformation part 210, increasing the contact area and the sealing performance is better. The working principle of the silicone deformation part 210 deforming under the pressure change of the negative pressure cavity 200 is a well-known technical solution to those skilled in the art and will not be described in detail in this embodiment.

[0077] In some embodiments of the present invention, asFigure 3 As shown, a check valve is provided at the bottom of the connecting cylinder 110, and the connecting cylinder 110 is in one-way communication with the milk storage chamber 40.

[0078] Specifically, the check valve 114 is made of silicone material and is in a closed state under normal conditions. When the volume of the negative pressure chamber 200 increases, the volume of the space between the negative pressure chamber 200, the connecting cylinder 110, and the horn chamber 11 decreases, thereby increasing the pressure in this space and pushing the check valve 114 to open. Subsequently, breast milk enters the milk storage chamber 40 from the check valve 114 under the action of gravity. When the volume of the negative pressure chamber 200 decreases, the volume of the space between the negative pressure chamber 200, the connecting cylinder 110, and the horn chamber 11 increases, thereby reducing the pressure in this space. At this time, the pressure in the milk storage chamber 40 is greater than the pressure in this space, and the check valve 114 returns to its closed state. The breast pump repeats the above cycle, enabling the breast milk to be stored in the milk storage chamber 40 every time after milk suction and effectively preventing the breast milk in the milk storage chamber 40 from flowing back.

[0079] In some embodiments of the present utility model, as Figures 4 - 6 shown, the housing 1 includes a front housing 10 and a rear housing 20. The horn chamber 11 is located at the front housing 10, the connecting cylinder 110 is located at the rear housing 20, and the milk storage chamber 40 is formed by combining the front housing 10 and the rear housing 20.

[0080] Specifically, the housing 1 of the present utility model is composed of a front housing 10 and a rear housing 20, and the front housing 10 and the rear housing 20 are fastened by a snap structure. The milk storage chamber 40 is located at the lower part of the housing 1. The housing is convenient for disassembling and cleaning the inside of the milk storage chamber 40, reducing the cleaning difficulty and making it easier to clean the sanitary dead corners.

[0081] In some embodiments of the present utility model, as Figures 5 - 6 shown, a sealing ring 50 is provided at the connection between the front housing 10 and the rear housing 20, and the sealing ring 50 seals the connection gap between the horn chamber 11 and the connecting cylinder 110 and the connection gap of the milk storage chamber 40.

[0082] Specifically, since the milk storage chamber 40 is connected by the front housing 10 and the rear housing 20, leaving a connection gap, there is a problem of unstable sealing performance. The sealing ring 50 is used to fill the connection gap, improving the sealing performance of the milk storage chamber 40 and preventing liquid leakage. The connection gap between the horn chamber 11 and the connecting cylinder 110 is also likely to cause a decrease in the working efficiency of the breast pump due to a decrease in sealing performance. The sealing ring 50 can simultaneously fill the connection gap between the horn chamber 11 and the connecting cylinder 110, further improving the working sealing performance of the breast pump.

[0083] In some embodiments of the present utility model, as Figure 6 and Figure 13As shown, the main body module 400 is provided with a negative pressure hole 401, and the suction port of the driving assembly 410 is connected to the negative pressure hole 401 through a silicone tube (not shown). When the main body module 400 is connected to the housing 1, the negative pressure hole 401 is tightly connected to the second through hole 121 of the negative pressure chamber 200.

[0084] Specifically, the air hole of the negative pressure chamber 200 adopts a counterbore structure, while the negative pressure hole adopts a convex hole structure. When the negative pressure chamber 200 is connected to the negative pressure hole 401, the negative pressure hole 401 and the air hole are tightly connected, enabling the driving assembly 410 to change the internal pressure of the negative pressure chamber 200 so as to realize the simulated sucking action of the breast pump. A silicone sealing ring is provided on the periphery of the negative pressure hole 401, which can improve the sealing performance between the negative pressure hole 401 and the negative pressure chamber 200.

[0085] In some embodiments of the present utility model, as Figure 13 shown, the main body module 400 includes a control assembly. The control assembly 230 is arranged above the driving assembly 410 and is electrically connected to the driving assembly 410. Specifically, the components in the main body module 400 adopt a vertical stacking structure, reducing the horizontal layout and the thickness of the breast pump. The control assembly 230 is fixedly arranged above the driving assembly 410. The control assembly 230 includes an operation panel, which can display the working state of the breast pump and adjust the working mode of the breast pump.

[0086] Specifically, the main body module 400 further includes a charging interface 402. The charging interface 402 is arranged on the other side of the suction port of the driving assembly 410, so that the silicone tube and the charging interface 402 are respectively on both sides of the driving assembly 410, balancing the weight distribution of the main body module 400.

[0087] In some embodiments of the present utility model, as Figure 12 shown, the main body module 400 and the housing 1 are fastened through an elastic connection structure. Specifically, the main body module 400 and the housing 1 are fixedly connected by a detachable ejector pin 403. When the main body module 400 is connected to the housing 1 in place, the ejector pin 403 cooperates with the inner wall positioning groove of the housing 1, and the ejector pin 403 pops into the positioning groove and makes a sound when hitting, giving the user a positive feedback on the connection.

[0088] It should be understood that the elastic connection structure for fastening the main body module 400 and the housing 1 is not the only implementation manner. In some other embodiments, a magnetic attraction connection structure can also be adopted, which can achieve the effect of automatic guiding connection. The connection structure between the main body module 400 and the housing is not elaborated one by one in the present utility model. It should be understood that without departing from the basic concept of the present utility model, the connection structure between the main body module 400 and the housing can be flexibly changed, and all should be regarded as within the protection scope defined by the present utility model.

[0089] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0090] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A breast pump connector, characterized in that, It includes a connecting cylinder which has opposite front cylinder openings and rear cylinder openings; a rear chamber is formed by the periphery of the rear cylinder opening extending outward, the connecting cylinder communicates with the rear chamber, a through hole is provided at the bottom of the connecting cylinder, and a second through hole is provided on the rear chamber. The rear chamber includes a corrugated plate connecting the rear cylinder opening, that is, a rear chamber side wall vertically extending from the periphery of the corrugated plate, so that the rear chamber is in a groove shape; the second through hole is provided at the top of the rear chamber side wall.

2. A breast pump, characterized in that, It has the breast pump connector described in claim 1; the breast pump has a front shell and a rear shell which are cooperatively connected, a horn cavity is provided on the front side surface of the front shell, and the front cylinder opening faces the horn cavity.

3. The breast pump according to claim 2, wherein, The rear shell has a left rear shell part, a right rear shell part, and a middle rear shell part connecting the two; the breast pump connector is provided in the middle rear shell part and is integrally formed with the rear shell, and the rear chamber side wall of the rear chamber is connected to the middle rear shell part; the left rear shell wall and the right rear shell part are located on both sides of the connecting cylinder.

4. The breast pump according to claim 3, characterized in that, A clearance position is dug in the middle rear shell part opposite to the rear chamber.

5. The breast pump according to claim 3, characterized in that, A first partition plate and a second partition plate symmetrically extend from the left and right side walls of the connecting cylinder, the first partition plate is connected to the left rear shell part, and the second partition plate is connected to the right rear shell part, thereby dividing the rear shell into an upper rear shell part and a lower rear shell part.

6. The breast pump according to claim 5, characterized in that, The front shell is provided with the horn cavity penetrating the front shell, and the small-mouth end of the horn cavity is connected to the front cylinder opening of the connecting cylinder; the front shell has a left front shell part, a right front shell part, and a middle front shell part; the horn cavity is located in the middle front shell part; the front shell extends and connects the front left side edge of the left front shell part and the front right side edge of the right front shell part respectively from the left and right sides of the small-mouth end of the horn cavity, the front left side edge is cooperatively connected to the first partition plate, and the front right side edge is cooperatively connected to the second partition plate, thereby dividing the inner cavity of the breast pump into an upper installation cavity and a lower milk storage chamber.

7. The breast pump according to claim 6, characterized in that, A sealing ring is provided at the connection between the front shell and the rear shell, and the sealing ring seals and connects the front left side edge and the first partition plate, the front right side edge and the second partition plate, and the small-mouth end of the horn cavity and the connecting cylinder.

8. The breast pump according to claim 2, wherein The front shell has a left front shell part, a right front shell part, and a middle front shell part connecting the two; the horn cavity is provided on the middle front shell part, and the small-mouth end of the horn cavity is integrally formed with the front cylinder opening of the connecting cylinder.

9. The breast pump according to claim 8, characterized in that, The breast pump further includes a rear shell which is matched with the front shell, and the rear shell is provided with a matching groove at a position opposite to the rear chamber, and a part of the rear chamber is accommodated in the matching groove.

10. The breast pump according to claim 9, characterized in that, The front housing extends and connects the front left side of the left part of the front housing and the front right side of the right part of the front housing respectively from the left and right sides of the small-mouth end of the horn cavity; the rear housing has a left part of the rear housing, a right part of the rear housing, and a middle part of the rear housing connecting the two; a first partition and a second partition symmetrically extend from the left and right side walls of the fitting groove, the first partition is connected to the left part of the rear housing, and the second partition is connected to the right part of the rear housing; the front left side is fitted and connected to the first partition, and the front right side is fitted and connected to the second partition, so as to divide the inner cavity of the breast pump into an upper installation cavity and a lower milk storage chamber.

11. The breast pump according to claim 2, characterized in that, The breast pump has a main machine module, which is detachably connected to the front housing and the rear housing, and includes a central driving component and symmetrically arranged power supply components, the power supply components are electrically connected to the driving component, and the suction port of the driving component is communicated with the negative pressure cavity accommodated in the rear cavity.

12. The breast pump according to claim 2, characterized in that, A milk outlet channel is provided at the top of the front housing or the rear housing, and a main machine module is arranged on the top of the front housing and the rear housing. When the main machine module is buckled with the front housing and the rear housing, the bottom of the main machine module blocks the opening of the milk outlet channel.

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