Breast pump with hidden milk pouring opening
By incorporating a hidden cavity and vent on the breast pump, the problem of poor air pressure flow between the milk outlet and the outside environment is solved, resulting in a smooth milk expression process and hygienic milk, while reducing noise and power requirements.
Patent Information
- Application Number
- CN202422755647.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-12
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2034-11-12
AI Technical Summary
Existing concealed breast pumps have poor airflow between the milk outlet and the outside air pressure, which requires the vacuum negative pressure device to increase its power to pump milk normally, and also increases noise during the pumping process.
A breast pump with a concealed inlet was designed. By setting a concealed cavity and a second baffle on the upper cover, a gap is left between the inlet nipple and the inner wall of the concealed cavity. Airflow is discharged through the concealed cavity and the exhaust port, ensuring alternating changes in air pressure and simulating the alternating action of 'sucking-exhausting'.
It achieves smooth milk expression while concealing the milk inlet, preventing foreign objects from contaminating the milk, reducing noise, and improving milk expression efficiency.
Smart Images
Figure CN223668389U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a breast pump technical field especially, it relates to a hidden type breast pump of milk back mouth. BACKGROUND
[0002] The breast pump is used for extruding the breast milk accumulated in the mammary gland, generally utilizes the vacuum negative pressure device to change the internal air pressure size alternately, realizes the simulation'suck - discharge' alternation action to suck the breast milk from the breast and stores in the feeding bottle.
[0003] But in practice, it is found that, because the milk back mouth needs to be communicated with the outside air pressure during the breast pump process, to ensure that the vacuum negative pressure can change the internal air pressure size normally. UTILITY MODEL CONTENTS
[0004] The utility model discloses at least one of the technical problems in the prior art is solved.
[0005] According to the hidden type breast pump of milk back mouth of the utility model, including: host computer, with host computer inner chamber is used to install breast milk, the host computer front side has the breast pumping face, be provided with breast pumping hole on the breast pumping face, the breast pumping face upper side is provided with first baffle, the host computer upper side is provided with milk back mouth, the milk back mouth with first baffle rear side is connected, the first step position is formed between the milk back mouth front side and first baffle upper side, the milk back mouth is communicated with host computer inner chamber, upper lid body can be covered in host computer upper side, the lower side position of upper lid body front side is provided with hidden recess, the hidden recess front side is provided with second baffle, be provided with exhaust port on second baffle, when upper lid body covers in host computer, the milk back mouth enters the hidden recess, second baffle can prop up first step position, and the air gap is left between the milk back mouth outer wall and hidden recess inner wall, the air current that the milk back mouth discharges can be in turn after the hidden recess, exhaust port is discharged.
[0006] According to some embodiments of the utility model, the lower side of the upper cover body is provided with a positioning bead, and the upper side of the host computer is provided with a positioning recess. When the upper cover body is covered on the host computer, the host computer can press the positioning bead through the positioning recess.
[0007] According to some embodiments of the utility model, the second step is formed between the upper side outer wall surface of the host computer and the rear side of the first baffle, and the upper cover body is provided with a concave step as a third step at left and right sides of the hidden cavity, and the second step and the third step are attached when the upper cover body is covered on the host computer.
[0008] According to some embodiments of the utility model, the horizontal section of the milk feeding nozzle and the hidden cavity is square, the left and right sides of the milk feeding nozzle are connected with the second step, and the left and right sides of the hidden cavity are connected with the third step.
[0009] According to some embodiments of the utility model, the exhaust port is a groove structure arranged at the lower side of the second baffle.
[0010] According to some embodiments of the utility model, the distance between the upper end surface of the milk feeding nozzle and the upper side inner wall surface of the hidden cavity is a when the upper cover body is covered on the host computer, and the value of a is a >= 0.8mm.
[0011] According to some embodiments of the utility model, the height of the first step is b, and the value of b is b >= 2mm.
[0012] According to some embodiments of the utility model, the host computer comprises a first host component and a second host component, the inner cavity of the host computer is located in the first host component, the first host component is provided with a mounting port at the front side, the second host component is mounted on the mounting port, the second host component comprises the milk suction surface at the front side and the suction chamber at the rear side, the suction chamber has a suction cavity, the milk suction hole is located at the front side of the suction chamber and communicates with the suction cavity, the suction chamber extends into the inner cavity of the host computer, the suction chamber is provided with a milk discharge port at the lower side, and the suction cavity communicates with the inner cavity of the host computer through the milk discharge port.
[0013] According to some embodiments of the utility model, the suction chamber is provided with a gas bag mounting cavity at the upper side, a gas bag is arranged on the gas bag mounting cavity, the gas bag has a gas bag inner cavity, the upper side of the gas bag is sealingly connected with the upper wall surface of the first host component, the first host component is provided with an external negative pressure port at the upper side, and the external negative pressure port can communicate with the gas bag inner cavity and the vacuum pump in the upper cover body respectively when the upper cover body is covered on the host computer.
[0014] According to some embodiments of the utility model, a one-way valve is arranged on the milk discharge port, and the one-way valve is a silica gel duckbill valve.
[0015] According to the embodiment of the utility model, the inverted teat opening hidden breast pump has at least the following technical effects: when the upper cover body is covered on the main machine, the hidden recess cavity and the second baffle can shield the inverted teat nozzle, so that foreign matters from outside cannot enter the inverted teat nozzle and pollute the milk in the inner cavity of the main machine during the breast pumping process; during the breast pumping process, the air in the inner cavity of the main machine can successively pass through the inverted teat nozzle, the hidden recess cavity and the air outlet and exchange with the outside, so that the breast pump can smoothly simulate the "suction-discharge" alternating action and complete the breast pumping action.
[0016] Additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS
[0017] Additional aspects and advantages of the utility model will become obvious and easy to understand from the description of the embodiments in combination with the following drawings, in which:
[0018] Figure 1 It is the perspective view of the inverted teat opening hidden breast pump of the utility model;
[0019] Figure 2 It is the sectional view of the inverted teat opening hidden breast pump of the utility model;
[0020] Figure 3 It is the structure schematic view of the inverted teat opening hidden breast pump of the utility model;
[0021] Figure 4 It is the exhaust working principle schematic view of the inverted teat opening hidden breast pump of the utility model;
[0022] Figure 5 It is the perspective view of the main machine in the utility model;
[0023] Figure 6 It is the sectional view of the main machine in the utility model;
[0024] Figure 7 It is the perspective view of the first main machine component in the utility model;
[0025] Figure 8 It is the perspective view of the second main machine component in the utility model;
[0026] Figure 9 It is the perspective view of the upper cover body in the utility model;
[0027] Figure 10 It is the sectional view of the upper cover body in the utility model;
[0028] Figure 11 It is the combined schematic view of the utility model.
[0029] REFERENCE NUMERALS:
[0030] Host 100, first host component 110, host cavity 111, mounting port 112, second host component 120, milk suction surface 121, milk suction hole 122, suction force chamber 124, suction force cavity 125, milk discharge port 126, air bag mounting cavity 127, first baffle 130, first step position 131, second step 132, positioning recess 133, inverted nipple 140, air bag 150, air bag cavity 151, air bag upper side opening 152, external negative pressure port 160, one-way valve 170, silica gel horn cover 180, petal massage convex part 181, lower cover joint surface 190, cover joint alignment groove 191, air bag pressing ring 192, upper cover body 200, hidden recess 210, second baffle 220, exhaust port 221, third step 222, upper cover joint surface 230, cover joint alignment rib 231, vacuum pump 300, circuit board 400, positioning bead 410, power connection port 420, button 430. DETAILED DESCRIPTION
[0031] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having 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 application, and cannot be understood as a limitation of the present application.
[0032] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as a limitation of the present application. The device or element indicated is necessarily constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.
[0033] In the description of the present application, the meaning of multiple is more than two, greater than, less than, more than, etc. is not included in the number. If it is described as first, second, it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.
[0034] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.
[0035] The following refers to Figure 1 and Figure 2 The inverted nipple hidden breast pump according to the embodiments of the present application is described.
[0036] like Figure 1 and Figure 2 As shown, the concealed milk inlet breast pump according to an embodiment of the present invention includes a main unit 100 and an upper cover 200.
[0037] The main unit 100 has an inner cavity 111 for holding breast milk. The front of the main unit 100 has a milk-absorbing surface 121 with a milk-absorbing hole 122. A first baffle 130 is located on the upper side of the milk-absorbing surface 121. A nipple 140 is located on the upper side of the main unit 100, connected to the rear side of the first baffle 130. A first step 131 is formed between the front side of the nipple 140 and the upper side of the first baffle 130. The nipple 140 communicates with the inner cavity 111. An upper cover 200 can be closed onto the upper side of the main unit 100. A hidden cavity 210 is provided on the lower front side of the cover 200. A second baffle 220 is provided on the front side of the hidden cavity 210. An exhaust port 221 is provided on the second baffle 220. When the upper cover 200 is closed on the main unit 100, the nipple 140 extends into the hidden cavity 210. The second baffle 220 can hold the first step 131. There is a gap between the outer wall of the nipple 140 and the inner wall of the hidden cavity 210. The airflow discharged from the nipple 140 can pass through the hidden cavity 210 and the exhaust port 221 in sequence before being discharged.
[0038] For example, such as Figure 1 and Figure 2 As shown, the main unit 100 has an inner cavity 111 for holding breast milk. The front of the main unit 100 has a milk-suction surface 121 with a milk-suction hole 122. The milk-suction surface 121 is aligned with the breast, and the milk-suction hole 122 is aligned with the nipple, ensuring normal milk suction operation of this breast pump. A first baffle 130 is provided on the upper side of the milk-suction surface 121. A pouring nipple 140 is provided on the upper side of the main unit 100, communicating with the inner cavity 111. When the main unit 100 is tilted, breast milk can be poured out of the inner cavity 111 through the pouring nipple 140. The pouring nipple 140 is connected to the rear side of the first baffle 130, forming a first step 131 between the front side of the pouring nipple 140 and the upper side of the first baffle 130.
[0039] The upper cover body 200 can be covered on the upper side of the main machine 100. The lower side of the front side of the upper cover body 200 is provided with a hidden cavity 210. The front side of the hidden cavity 210 is provided with a second baffle 220, and the second baffle 220 is provided with an exhaust port 221 which is communicated with the cavity of the hidden cavity 210. When the upper cover body 200 is covered on the main machine 100, the milk pouring nozzle 140 is inserted into the hidden cavity 210, and the second baffle 220 can abut against the first step position 131, so that the upper cover body 200 is tightly matched with the main machine 100, and the milk pouring nozzle 140 can be hidden in the hidden cavity 210 to prevent foreign matters from entering the hidden cavity 210 and the milk pouring nozzle 140. The air flow discharged from the milk pouring nozzle 140 can pass through the hidden cavity 210 and the exhaust port 221 in sequence and then be discharged, so that the air in the inner cavity 111 of the main machine can be circulated with the outside through the milk pouring nozzle 140 and the exhaust port 221, and the milk suction and milk pouring is smooth.
[0040] In actual milk suction, referring to Figure 2 、 Figure 3 , the upper cover body 200 is first covered on the main machine 100. At this time, the milk pouring nozzle 140 of the main machine 100 is inserted into the hidden cavity 210 of the upper cover body 200, and the second baffle 220 at the front side of the hidden cavity 210 abuts against the first step position 131 at the front side of the milk pouring nozzle 140, so that the hidden cavity 210 and the second baffle 220 can shield the hidden milk pouring nozzle 140, and ensure that foreign matters cannot enter the milk pouring nozzle 140 and pollute the milk in the inner cavity 111 of the main machine during the milk suction process.
[0041] Then, the milk suction surface 121 of the milk suction device of the utility model is aligned with the breast, the milk suction hole 122 is aligned with the nipple, and the milk suction device of the utility model is started to perform the milk suction work. Referring to Figure 4 , during the milk suction work, although the milk pouring nozzle 140 is shielded and hidden, the air in the inner cavity 111 of the main machine can still be circulated with the outside through the milk pouring nozzle 140, the hidden cavity 210 and the exhaust port 221 in sequence, so that the milk suction device of the utility model can smoothly simulate the "suction-pouring" alternating action and complete the milk suction action.
[0042] After the milk suction work is completed, referring to Figure 5 , the upper cover body 200 can be removed, so that the milk pouring nozzle 140 is exposed, and then the milk in the inner cavity 111 of the main machine can be directly poured out from the milk pouring nozzle 140 for use or storage.
[0043] In some embodiments of the utility model, referring to Figure 2 、 Figure 3, the host 100 comprises a first host component 110 and a second host component 120, and a host cavity 111 is located in the first host component 110. The first host component 110 is provided with a mounting port 112 at the front side, and the second host component 120 is mounted on the mounting port 112. The second host component 120 comprises a front side milk suction surface 121 and a rear side suction chamber 124, the suction chamber 124 has a suction cavity 125, a milk suction hole 122 is located at the front side of the suction chamber 124 and communicates with the suction cavity 125, the suction chamber 124 extends into the host cavity 111, and the lower side of the suction chamber 124 is provided with a milk discharge port 126, and the suction cavity 125 communicates with the host cavity 111 through the milk discharge port 126. Referring to Figure 11 , the combination design of the first host component 110 and the second host component 120 ensures that the host 100 can be disassembled for cleaning. Referring to Figure 7 、 Figure 8 , after the first host component 110 and the second host component 120 are disassembled, the host cavity 111 in the first host component 110 can be cleaned from the position of the mounting port 112, and the suction cavity 125 in the second host component 120 can be cleaned from the position of the milk suction hole 122.
[0044] The suction chamber 124 is a three-way part of the host 100, and is an important part of the host 100 for milk suction. When the milk suction surface 121 is aligned with the breast and the milk suction hole 122 is aligned with the nipple, the milk sucked out enters the suction cavity 125 in the suction chamber 124 through the milk suction hole 122 and is discharged from the milk discharge port 126 into the host cavity 111.
[0045] In some embodiments of the utility model, the upper side of the host 100 is provided with a lower cover joint surface 190, and the lower cover joint surface 190 is distributed with a cover joint alignment groove 191. The lower side of the upper cover body 200 is provided with an upper cover joint surface 230, and the upper cover joint surface 230 is distributed with a cover joint alignment rib 231. When the upper cover body 200 is covered on the host 100, the upper cover joint surface 230 is attached to the lower cover joint surface 190, and the cover joint alignment rib 231 is clamped in the cover joint alignment groove 191, so that the connection between the upper cover body 200 and the host 100 can be further ensured to be stable and reliable.
[0046] In some embodiments of the utility model, referring to Figure 6 , the upper side of the suction chamber 124 is provided with an air bag mounting cavity 127, the air bag mounting cavity 127 is provided with an air bag 150, the air bag 150 has an air bag cavity 151, the upper side of the air bag 150 is sealingly connected to the upper wall surface of the first host component 110, and the upper side of the first host component 110 is provided with an external negative pressure port 160. Referring to Figure 2 、 Figure 3 When the upper cover body 200 is covered on the host 100, the external negative pressure port 160 can respectively communicate with the air bag cavity 151 and the vacuum pump 300 in the upper cover body 200.
[0047] The first main body member 110 and the second main body member 120 of the main machine 100 are fixed members, and the air bag 150 is movable to form a negative pressure environment so that the suction chamber 124 generates suction force. The air bag 150 is located in an air bag mounting cavity 127, and the air bag 150 is connected with the vacuum pump 300 through an external negative pressure port 160. The air bag 150 is contracted to form a negative pressure through the vacuum pump 300. When the air bag 150 cooperates with the vacuum pump 300 to work, the vacuum pump 300 starts to work intermittently, so that the air bag 150 fluctuates regularly, and the volume of the air bag inner cavity 151 changes intermittently to generate an intermittent negative pressure, so as to simulate the action of a baby sucking a breast, so that milk is sucked out. The milk is sucked out and flows into the main machine inner cavity 111 from the milk discharge port 126 on the lower side of the suction chamber 124 to be collected.
[0048] In further embodiments of the utility model, the air bag 150 has an air bag upper side opening 152, and the lower side of the upper wall surface of the first main body member 110 is provided with an air bag pressing ring 192. When the upper cover body 200 is covered on the main machine 100, the air bag pressing ring 192 clamps the inner side of the air bag upper side opening 152, and the air bag inner cavity 151 clamps the outer side of the air bag upper side opening 152. In this way, the upper side of the air bag 150 and the upper wall surface of the first main body member 110 are sufficiently sealed, and air leakage of the air bag 150 during the formation of negative pressure is avoided.
[0049] In some specific embodiments of the utility model, the breast pumping surface 121 is provided with a silica gel horn cover 180. In this way, when the breast pumping surface 121 is attached to the breast, the silica gel horn cover 180 makes the breast more comfortable.
[0050] Further, the silica gel horn cover 180 is provided with petal massage convex parts 181, which can play a role in massaging the breast.
[0051] In some embodiments of the utility model, with reference to Figure 2 、 Figure 6 , the milk discharge port 126 is provided with a one-way valve 170, and the one-way valve 170 is a silica gel duckbill valve. The one-way valve 170 includes duckbill inclined surfaces on both sides, and a straight hole is formed between the lower sides of the duckbill inclined surfaces, and the straight hole faces the main machine inner cavity 111. The milk flowing into the milk discharge port 126 flows into the main machine inner cavity 111 through the one-way valve 170.
[0052] In some embodiments of the utility model, with reference to Figure 9 、 Figure 10 , the lower side of the upper cover body 200 is provided with a positioning bead 410, and the upper side of the main machine 100 is provided with a positioning recess 133. When the upper cover body 200 is covered on the main machine 100, the main machine 100 can clamp the positioning bead 410 through the positioning recess 133, so as to realize the positioning connection between the upper cover body 200 and the main machine 100, and avoid the loosening of the upper cover body 200.
[0053] In some embodiments of the present application, the positioning bead 410 on the underside of the upper cover body 200 can be replaced by a spring needle contact, which is electrically connected to the circuit board 400. When the upper cover body 200 is closed on the main machine 100, the main machine 100 can press the spring needle contact, which can trigger the circuit board 400, so that the circuit board 400 can be started. That is, only when the upper cover body 200 is closed on the main machine 100, the spring needle contact is compressed, so that the circuit board 400 will start to work, avoiding the upper cover body 200 and the main machine 100 from being separated from each other. Figure 2 Figure 10 The upper cover body 200 is internally provided with a circuit board 400, which serves as an electric control device of the breast pump of the present application.
[0054] In some embodiments of the present application, the positioning bead 410 on the underside of the upper cover body 200 can be replaced by a spring needle contact, which is electrically connected to the circuit board 400. When the upper cover body 200 is closed on the main machine 100, the main machine 100 can press the spring needle contact, which can trigger the circuit board 400, so that the circuit board 400 can be started. That is, only when the upper cover body 200 is closed on the main machine 100, the spring needle contact is compressed, so that the circuit board 400 will start to work, avoiding the upper cover body 200 and the main machine 100 from being separated from each other.
[0055] In some embodiments of the present application, the positioning bead 410 on the underside of the upper cover body 200 can be replaced by a spring needle contact, which is electrically connected to the circuit board 400. When the upper cover body 200 is closed on the main machine 100, the main machine 100 can press the spring needle contact, which can trigger the circuit board 400, so that the circuit board 400 can be started. That is, only when the upper cover body 200 is closed on the main machine 100, the spring needle contact is compressed, so that the circuit board 400 will start to work, avoiding the upper cover body 200 and the main machine 100 from being separated from each other. Figure 5
[0056] In some embodiments of the present application, the positioning bead 410 on the underside of the upper cover body 200 can be replaced by a spring needle contact, which is electrically connected to the circuit board 400. When the upper cover body 200 is closed on the main machine 100, the main machine 100 can press the spring needle contact, which can trigger the circuit board 400, so that the circuit board 400 can be started. That is, only when the upper cover body 200 is closed on the main machine 100, the spring needle contact is compressed, so that the circuit board 400 will start to work, avoiding the upper cover body 200 and the main machine 100 from being separated from each other.
[0057] In some embodiments of the present application, the positioning bead 410 on the underside of the upper cover body 200 can be replaced by a spring needle contact, which is electrically connected to the circuit board 400. When the upper cover body 200 is closed on the main machine 100, the main machine 100 can press the spring needle contact, which can trigger the circuit board 400, so that the circuit board 400 can be started. That is, only when the upper cover body 200 is closed on the main machine 100, the spring needle contact is compressed, so that the circuit board 400 will start to work, avoiding the upper cover body 200 and the main machine 100 from being separated from each other.
[0058] In some embodiments of the present application, the positioning bead 410 on the underside of the upper cover body 200 can be replaced by a spring needle contact, which is electrically connected to the circuit board 400. When the upper cover body 200 is closed on the main machine 100, the main machine 100 can press the spring needle contact, which can trigger the circuit board 400, so that the circuit board 400 can be started. That is, only when the upper cover body 200 is closed on the main machine 100, the spring needle contact is compressed, so that the circuit board 400 will start to work, avoiding the upper cover body 200 and the main machine 100 from being separated from each other.
[0059] In some embodiments of the present application, the positioning bead 410 on the underside of the upper cover body 200 can be replaced by a spring needle contact, which is electrically connected to the circuit board 400. When the upper cover body 200 is closed on the main machine 100, the main machine 100 can press the spring needle contact, which can trigger the circuit board 400, so that the circuit board 400 can be started. That is, only when the upper cover body 200 is closed on the main machine 100, the spring needle contact is compressed, so that the circuit board 400 will start to work, avoiding the upper cover body 200 and the main machine 100 from being separated from each other.
[0060] In some embodiments of the present application, the positioning bead 410 on the underside of the upper cover body 200 can be replaced by a spring needle contact, which is electrically connected to the circuit board 400. When the upper cover body 200 is closed on the main machine 100, the main machine 100 can press the spring needle contact, which can trigger the circuit board 400, so that the circuit board 400 can be started. That is, only when the upper cover body 200 is closed on the main machine 100, the spring needle contact is compressed, so that the circuit board 400 will start to work, avoiding the upper cover body 200 and the main machine 100 from being separated from each other. Figure 5 Figure 9 The upper cover 200 has concave steps on both sides of the hidden cavity 210 as the third step 222. When the upper cover 200 is closed on the main unit 100, the second step 132 and the third step 222 fit together, which ensures that the upper cover 200 and the main unit 100 are accurately aligned and firmly connected, and ensures that the upper cover 200 will not shift during milk feeding, which would cause an excessively large gap between the nipple 140 and the hidden cavity 210, allowing foreign objects to enter and contaminating the milk.
[0061] In some specific embodiments of this utility model, the second step 132 is located on the left and right sides of the nipple 140.
[0062] In some embodiments of this utility model, reference is made to Figure 4 The horizontal cross-section of the nipple 140 and the concealed cavity 210 is square. (Refer to...) Figure 5 The nipple 140 connects to the second step 132 on both sides. (Refer to...) Figure 9 The hidden cavity 210 is connected to the third step 222 on both sides. The above design can ensure that when the top cover 200 is closed on the main unit 100, there is as little as possible to avoid an excessively large gap between the nipple 140 and the hidden cavity 210, which would make it easy for foreign objects to enter the hidden cavity 210.
[0063] In some embodiments of this utility model, the upper end of the nipple 140 is offset from the horizontal position of the vent 221, which can further prevent external dust from entering the nipple 140 through the vent 221.
[0064] In some embodiments of this utility model, the exhaust port 221 is a through hole structure provided on the second baffle 220.
[0065] In some embodiments of this utility model, the exhaust port 221 is a groove structure provided on the lower side of the second baffle 220, which not only facilitates the processing of the exhaust port 221 structure, but also makes it convenient to clean the exhaust port 221.
[0066] In some embodiments of this utility model, reference is made to Figure 4 When the upper cover 200 is closed on the main unit 100, the shortest distance between the upper end of the nipple 140 and the upper inner wall of the hidden cavity 210 is at least 0.8mm. That is, when the upper cover 200 is closed on the main unit 100, the shortest distance between the upper end of the nipple 140 and the upper inner wall of the hidden cavity 210 is defined as a, where a is greater than or equal to 0.8mm, ensuring that the airflow passing through the nipple 140 can enter the hidden cavity 210.
[0067] In some embodiments of the utility model, the shortest height of the first step position 131 is at least 2mm. That is, the shortest height of the first step position 131 is defined as b, and the value of b is b≥2mm, which ensures that the first step position 131 can reliably shield and hide the inverted teat 140.
[0068] In some embodiments of the utility model, the shortest horizontal distance between the frontmost position of the breast pumping surface 121 and the frontmost position of the inverted teat 140 is c, and the value of c is c≤5cm. When the host 100 is properly positioned with the breast, the above design makes the gravity center of the breast pump as close to the breast as possible, and makes the distance between the inverted teat 140 and the breast pumping surface 121 as short as possible. This not only avoids air leakage between the breast pumping surface 121 and the breast due to the shaking of the breast pump, but also ensures that the air in the host cavity 111 can quickly pass through the inverted teat 140 and exchange with the outside, making the breast pumping process reliable enough.
[0069] Other configurations and operations of the breast pump according to the embodiments of the utility model are known to those skilled in the art and will not be described in detail here.
[0070] The following description will be made with reference to Figure 1 and Figure 2 A specific embodiment of the inverted teat hidden breast pump according to the embodiments of the utility model will be described in detail. It should be understood that the following description is only exemplary and is not a specific limitation of the utility model.
[0071] As shown in Figure 1 and Figure 2 , the breast pump of the utility model comprises a host 100 and an upper cover body 200.
[0072] The host 100 comprises a first host component 110 and a second host component 120. Referring to Figure 7 , the first host component 110 comprises a host cavity 111, a mounting port 112, an inverted teat 140, a lower cover surface 190, an external negative pressure port 160, and a gas bag pressing ring 192 is arranged on the lower side of the lower cover surface 190. Referring to Figure 8The second main component 120 comprises a milk suction surface 121, a milk suction hole 122, a suction force chamber 124, a suction force cavity 125, a milk discharge port 126, and a gas bag mounting cavity 127. The gas bag mounting cavity 127 is provided with a gas bag 150. The gas bag 150 has a gas bag inner cavity 151 and a gas bag upper side opening 152. The milk discharge port 126 is provided with a one-way valve 170. The milk suction surface 121 is provided with a silica gel horn cover 180, and the silica gel horn cover 180 is provided with petal massage convex portions 181. A first step position 131 is formed between the front side of the milk discharge nozzle 140 and the upper side of the first baffle plate 130. Second step positions 132 are formed between the left and right sides of the upper side outer wall surface of the main machine 100 and the left and right sides of the rear side of the first baffle plate 130. Positioning grooves are arranged at the rear side of the second step positions 132.
[0073] The upper cover body 200 comprises a hidden recess cavity 210, a second baffle plate 220, and an upper cover joint surface 230. The upper cover joint surface 230 is provided with a joint positioning rib 231. The second baffle plate 220 is provided with an air outlet 221 at the lower side. The left and right sides of the hidden recess cavity 210 of the upper cover body 200 are provided with concave steps as third step positions 222. The vacuum pump 300 is arranged in the main machine 100. The upper cover body 200 is provided with a circuit board 400, positioning beads 410, an electrical connection port 420, and a button 430.
[0074] According to the inverted milk discharge port hidden breast pump, when the upper cover body 200 is combined with the main machine 100, the hidden recess cavity 210 and the second baffle plate 220 can shield the inverted milk discharge nozzle 140, so that foreign matters cannot enter the inverted milk discharge nozzle 140 and pollute the milk in the main machine inner cavity 111 during the breast pumping process. During the breast pumping process, the air in the main machine inner cavity 111 can be sequentially discharged through the inverted milk discharge nozzle 140, the hidden recess cavity 210, the air outlet 221, and the outside, so that the breast pump can simulate the “suction-discharge” alternating action and complete the breast pumping action.
[0075] In the description of the present specification, the description of the terms “some embodiments” or “it is conceivable that” and the like means that the specific features, structures, materials or characteristics described in combination with the embodiments or examples are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0076] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.
Claims
1. A hidden breast pump with a backflow prevention valve, characterized in that, The utility model relates to a breast pump, which comprises a main body (100) having a main body cavity (111) for accommodating milk, a breast pumping surface (121) provided on the front side of the main body (100), a breast pumping hole (122) provided on the breast pumping surface (121), a first baffle (130) provided on the upper side of the breast pumping surface (121), and a milk pouring nozzle (140) provided on the upper side of the main body (100) and connected to the rear side of the first baffle (130), wherein the front side of the milk pouring nozzle (140) and the upper side of the first baffle (130) form a first step (131), and the milk pouring nozzle (140) is in communication with the main body cavity (111). An upper cover body (200) is capable of being attached to the upper side of the main body (100), a hidden recess (210) is provided on the lower side of the front side of the upper cover body (200), a second baffle (220) is provided on the front side of the hidden recess (210), an air outlet (221) is provided on the second baffle (220), when the upper cover body (200) is attached to the main body (100), the milk pouring nozzle (140) extends into the hidden recess (210), the second baffle (220) is capable of abutting against the first step (131), and a gap is left between the outer wall of the milk pouring nozzle (140) and the inner wall of the hidden recess (210), so that the airflow discharged from the milk pouring nozzle (140) can pass through the hidden recess (210) and the air outlet (221) in sequence and then be discharged. A positioning bead (410) is provided on the lower side of the upper cover body (200), and a positioning recess (133) is provided on the upper side of the main body (100), so that when the upper cover body (200) is attached to the main body (100), the main body (100) can clamp the positioning bead (410) through the positioning recess (133).
2. The hidden breast pump with a backmilk port according to claim 1, characterized in that A second step (132) is formed between the outer wall surface of the upper side of the main body (100) and the rear side of the first baffle (130), and a concave step as a third step (222) is provided on the left and right sides of the hidden recess (210) of the upper cover body (200), so that when the upper cover body (200) is attached to the main body (100), the second step (132) and the third step (222) are in abutment.
3. The hidden breast pump with a backmilk port according to claim 1, characterized in that The horizontal cross section of the milk pouring nozzle (140) and the hidden recess (210) is square, the left and right sides of the milk pouring nozzle (140) are connected to the second step (132), and the left and right sides of the hidden recess (210) are connected to the third step (222).
4. The hidden breast pump with a backmilk port according to claim 3, characterized in that The air outlet (221) is a groove structure provided on the lower side of the second baffle (220).
5. The hidden milk pump with milk backflow prevention according to claim 1, characterized in that, When the upper cover body (200) is attached to the main body (100), the distance between the upper end surface of the milk pouring nozzle (140) and the upper side inner wall surface of the hidden recess (210) is defined as a, and the value of a is a≥0.8 mm.
6. The hidden milk pump with milk backflow prevention according to claim 1, characterized in that, The height of the first step (131) is defined as b, and the value of b is b≥2 mm.
7. The hidden milk pump with milk backflow prevention according to claim 1, characterized in that, 8. The hidden milk pump with milk backflow prevention according to claim 1, characterized in that, The host (100) includes a first host component (110) and a second host component (120), the host cavity (111) is located in the first host component (110), the first host component (110) is provided with a mounting port (112) on the front side, the second host component (120) is mounted on the mounting port (112), the second host component (120) includes the milk suction surface (121) on the front side and the suction chamber (124) on the back side, the suction chamber (124) has a suction cavity (125), the milk suction hole (122) is located on the front side of the suction chamber (124) and communicates with the suction cavity (125), the suction chamber (124) extends into the host cavity (111), the suction chamber (124) is provided with a milk discharge port (126) on the lower side, the suction cavity (125) communicates with the host cavity (111) through the milk discharge port (126).
9. The hidden milk pump with milk backflow prevention according to claim 8, characterized in that, The suction chamber (124) is provided with an air bag mounting cavity (127) on the upper side, the air bag mounting cavity (127) is provided with an air bag (150) thereon, the air bag (150) has an air bag cavity (151), the upper side of the air bag (150) is sealingly connected with the upper wall surface of the first host component (110), the first host component (110) is provided with an external negative pressure port (160) on the upper side, when the upper cover body (200) is covered on the host (100), the external negative pressure port (160) can respectively communicate with the air bag cavity (151) and the vacuum pump (300) in the upper cover body (200).
10. The hidden milk pump with milk backflow prevention according to claim 8, characterized in that, The milk discharge port (126) is provided with a one-way valve (170), and the one-way valve (170) is a silica gel duckbill valve.