Breast pump

Abstract

The utility model discloses a kind of breast pumps, it is related to maternal and infant articles technical field, wherein, breast pump includes host computer, breast shield, milk storage container and dust cover;Host computer includes negative pressure pump mechanism;Breast shield includes the flange of adhering breast and the milk outlet of discharging milk into the milk storage container, negative pressure pump mechanism can directly or indirectly cause negative pressure to be generated in breast shield, to provide suction power for breast pump;Host computer, milk storage container, breast shield mutually cooperate and form integrated all-in-one breast pump complete machine;Dust cover and breast pump complete machine at least include two assembly forms, under the first assembly form, dust cover covers in breast shield to provide dustproof function;Under the second assembly form, dust cover is assembled or cooperated with breast pump complete machine, to support breast pump complete machine to keep upright or prevent the attitude of milk liquid overflow.The utility model provides breast pump, solved the problem that milk liquid is easy to flow out from exhaust structure, improve the use experience of user.

Description

Technical Field

[0001] This utility model relates to the field of maternal and infant products technology, and in particular to a breast pump. Background Technology

[0002] Breast pumps are widely used to assist breastfeeding women in expressing milk. Currently, breast pumps mainly consist of a main unit, a breast shield, and a milk storage container. To improve user convenience, breast pumps are becoming increasingly smaller, and to enhance grip comfort, their shape is typically designed as a hemispherical or semi-ellipsoidal shape.

[0003] Existing breast pumps typically have a venting structure on top of the milk storage container. After pumping, the pump needs to be placed upright to prevent milk from leaking out when tilted or laid flat. However, existing breast pumps have a curved outer surface or a small flat bottom, making them difficult to place upright or prone to tilting or falling over when placed on a table, causing milk to leak out of the venting structure and affecting user experience. Utility Model Content

[0004] The main purpose of this invention is to propose a breast pump that aims to solve the problem that milk tends to leak out of the venting structure when the existing breast pump is placed on a table after pumping.

[0005] To achieve the above objectives, the present invention provides a breast pump comprising: a main unit, a milk storage container, and a breast shield;

[0006] The breast shield includes a flange that conforms to the breast and a milk outlet for discharging milk into the milk storage container;

[0007] The main unit includes a negative pressure mechanism, which can directly or indirectly generate negative pressure inside the breast shield to provide suction power for the breast shield;

[0008] The main unit, milk storage container, and breast shield work together to form an integrated, one-piece breast pump.

[0009] The dust cover and the breast pump assembly have at least two assembly configurations:

[0010] In the first assembly configuration, the dust cover covers the breast shield to provide a dustproof function;

[0011] Second assembly configuration: The dust cover is assembled or fitted with the breast pump to support the breast pump in an upright position or to prevent milk from spilling out.

[0012] In one embodiment of this utility model, the dust cover is provided with a support structure, and in the second assembly state, the breast pump unit cooperates with the support structure.

[0013] In one embodiment of the present invention, the support structure includes a plurality of support portions arranged at relative intervals, and the support portions have a support surface on the side facing the breast pump body for point contact support of the breast pump body.

[0014] In one embodiment of the present invention, the support structure includes a plurality of support grooves, and the bottom of the breast pump unit abuts against at least three of the support grooves that are not on the same straight line, thereby achieving support.

[0015] In one embodiment of the present invention, the support structure further includes a support member, which is used to support and cooperate with some components of the breast pump, so that the breast pump can be stably in the second assembly form.

[0016] In one embodiment of this utility model, the support member is any one of a groove structure, a support plate structure, or a protruding structure used to cooperate with the breast pump.

[0017] In one embodiment of the present invention, the support structure is disposed on the inner surface of the dust cover facing the breast shield in the first assembly configuration.

[0018] In one embodiment of the present invention, the dust cover has an outer surface on the side away from the breast pump shield in the first assembly configuration, and the outer surface is used to contact an external platform in the second assembly configuration so that the inner surface of the dust cover supports the entire breast pump.

[0019] In one embodiment of this utility model, the breast pump and the dust cover are in a supporting or locking relationship in the second assembly configuration.

[0020] In one embodiment of this utility model, the locking relationship is an interference fit, a magnetic fit, or a mechanical locking fit with a snap-fit ​​structure.

[0021] In one embodiment of the present invention, the support structure includes a first support portion, a second support portion, and a third support portion that are not on the same straight line. At least one of the first support portion, the second support portion, and the third support portion includes a support groove, and at least one of them includes a support block. The entire breast pump abuts against the groove wall of the support groove and the support block.

[0022] In one embodiment of the present invention, the support structure includes a support block protruding from the surface of the dust cover, and at least two support grooves are formed on the surface of the support block. The entire breast pump is in contact with the bottom and side wall of the support groove, respectively.

[0023] In one embodiment of the present invention, the support structure includes an assembly groove that mates with at least a portion of the outer surface of the breast pump.

[0024] In one embodiment of this utility model, the mounting groove is detachably connected to the bottom of the breast pump.

[0025] In one embodiment of this utility model, the end face of the support structure away from the dust cover is an arc-shaped surface, and at least part of the surface of the breast pump is in contact with the arc-shaped surface.

[0026] In one embodiment of this utility model, the support structure and the dust cover are integrally formed.

[0027] In one embodiment of the present invention, the milk storage container includes a venting structure, which is connected to the cavity inside the milk storage container and is used to vent the air inside the milk storage container when storing milk.

[0028] This utility model proposes a breast pump comprising a main unit, a milk storage container, a breast shield, and a dust cover. The breast shield includes a flange that conforms to the breast and a milk outlet for discharging milk into the milk storage container. The main unit includes a negative pressure pump mechanism that can directly or indirectly generate negative pressure within the breast shield and provide the negative pressure needed for pumping. The main unit, milk storage container, and breast shield are integrated into a single, one-piece breast pump unit. The dust cover has at least two assembly configurations with the breast pump unit. In the first configuration, the dust cover covers the surface of the breast shield, providing dust protection. In the second configuration, the dust cover is assembled or fitted with the breast pump unit to support the pump unit in an upright position or prevent milk spillage, thus preventing milk from the storage container from flowing out through the venting structure and improving the user experience. The dust cover serves both dust protection and support functions, integrating these two functions into a single structure while also meeting the need for miniaturization of the breast pump. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0030] Figure 1 A schematic diagram of the structure of the dust cover and the entire breast pump in the second assembly configuration of the present invention.

[0031] Figure 2 for Figure 1 Exploded view of a breast pump;

[0032] Figure 3 This is a schematic diagram of the dust cover in one embodiment of the breast pump of this utility model;

[0033] Figure 4 This is a schematic diagram of the dust cover in another embodiment of the breast pump of this utility model;

[0034] Figure 5 This is a schematic diagram of the dust cover in another embodiment of the breast pump of this utility model;

[0035] Figure 6 A schematic diagram of the structure of the dust cover and the entire breast pump in the first assembly configuration provided by this utility model;

[0036] Figure 7 This is a schematic diagram of the internal structure of the breast pump in one embodiment of the present invention.

[0037] Explanation of icon numbers:

[0038] 10. Main unit; 20. Breast pump shield; 21. Milk outlet; 30. Dust cover; 31. Support structure; 311a. Support groove; 311b. Arc-shaped surface; 312. Support block; 313. First support part; 314. Second support part; 315. Third support part; 316. Assembly groove; 32. Dustproof groove; 33. Clearance groove; 40. Milk storage container; 41. Exhaust structure; 50. One-way valve.

[0039] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0041] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0042] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0043] This utility model proposes a breast pump.

[0044] Combination Figure 1 , Figure 2 and Figure 6 As shown, in one embodiment of this utility model, the breast pump includes a main unit 10, a milk storage container 40, a breast shield 20, and a dust cover 30. The breast shield 20 includes a flange that conforms to the breast and a milk outlet 21 that discharges milk into the milk storage container. The main unit 10 includes a negative pressure pump mechanism, which can directly or indirectly generate negative pressure inside the breast shield 20 to provide suction power for the breast pump. The main unit 10, the milk storage container 40, and the breast shield 20 cooperate with each other to form an integrated breast pump unit. The dust cover 30 and the breast pump unit have at least two assembly forms. In the first assembly form, the dust cover 30 covers the breast shield 20 to provide a dustproof function. In the second assembly form, the dust cover 30 is assembled or cooperates with the breast pump unit to support the breast pump unit to maintain an upright posture or prevent milk from overflowing.

[0045] In this embodiment, the breast pump is hemispherical or semi-ellipsoidal in shape. This shape facilitates hand grip and improves the convenience of milk expression. It also conforms to the shape of a bra, allowing the breast pump to be embedded inside for enhanced privacy. Because the outer surface of the breast pump is curved, it is prone to wobbling when placed on a table, potentially causing the breast shield 20 to come into contact with the surface. The breast shield 20 is funnel-shaped and connected to the negative pressure pump mechanism of the main unit 10, or via an air tube. The main unit 10 includes a negative pressure mechanism and control components. The negative pressure mechanism can be a miniature air pump, which communicates with the inside of the breast shield 20 via a conduit or cavity channel, providing a stable negative pressure source for milk extraction. The milk storage container 40 is used to collect breast milk and can be made of transparent or opaque food-grade plastic. The milk storage container 40 is connected to the breast pump shield 20 to form a milk flow channel. The negative pressure generated by the negative pressure mechanism within the breast pump shield 20 acts on the surface of the breast and draws the milk through the flow channel into the milk storage container 40. The surface of the milk storage container 40 has an exhaust structure 41, which is used to expel gas from the milk storage container 40 during the milk pumping process to ensure smooth milk pumping. The breast pump shield 20 is designed to fit snugly against the surface of the breast. The flange can be made of flexible silicone or a combination of flexible silicone and a rigid plastic shell. The flange is designed to conform to the contour of the breast, and the milk outlet is connected to the milk storage container 40 to form a flow path.

[0046] In one embodiment of this utility model, the negative pressure mechanism can also be mechanical, which can drive the flexible conduit or flexible diaphragm to reciprocate through mechanical reciprocating motion to generate negative pressure inside the breast suction shield 20.

[0047] Specifically, the integrated breast pump structure can fix the main unit 10, milk storage container 40, and breast shield 20 into a whole by means of snap-fit ​​connection or threaded connection. The main unit 10 and milk storage container 40 can also be a one-piece molded structure.

[0048] A dust cover 30 has a recessed side forming a dustproof groove 32. The shape of the dust cover 30 is the same as the end of the main unit 10 facing the milk inlet. In the first assembly configuration, the dust cover 30 is fitted onto the end of the main unit 10 facing the milk inlet by means of a snap-fit, threaded connection, or interference fit, to cover the breast pump shield 20 and thus improve dust protection. When it is necessary to place the dust cover 30 on the main unit 10, simply align the dustproof groove 32 with the milk inlet and snap the dust cover 30 onto the main unit 10. This quick-release connection method improves the convenience of user operation. Of course, the dust cover 30 and the main unit 10 can also be connected by threads.

[0049] In the second assembly configuration, the dust cover 30 can be connected to the breast pump via snap-fit, threaded connection, or other assembly methods, or through a support mechanism, to keep the breast pump upright and prevent milk from overflowing from the venting structure 41 in the milk storage container 40. Specifically, a support structure 31 is provided on the side of the dust cover 30 where the dustproof groove 32 is located. That is, the side of the dust cover 30 covering the main unit 10 for dust protection is the same side as the side supporting the breast pump. This design ensures that the dustproof and supportive side of the dust cover 30 never directly contacts the table surface, whether for dust protection or support, thereby maintaining the cleanliness of the dustproof groove 32 and the support structure 31, and improving the hygiene of the breast shield 20 and the side of the main unit 10 facing the milk outlet.

[0050] The support structure 31 can be a multi-point support structure protruding from the surface of the dust cover 30, a support structure in line contact with the entire breast pump, or a surface support structure that is in contact with the surface of the entire breast pump.

[0051] Through the above technical solution, this application not only solves the problem that existing breast pumps are prone to tipping over when placed on a table after pumping, causing milk to leak from the venting structure 41, but also addresses the compatibility issues of breast pump stability and dust protection, avoiding the cumbersome assembly and storage difficulties caused by scattered parts. The dual-function design of the dust cover 30 reduces user operation steps, allowing for quick switching between the machine's support states during breastfeeding breaks to prevent milk from leaking from the venting structure 41. Integrating these two functions into a single structure of the dust cover 30 meets the need for miniaturization of the breast pump.

[0052] In addition, the main unit 10 also includes a control component. The negative pressure mechanism is electrically connected to the control component, and the control component controls the negative pressure mechanism to directly or indirectly apply negative pressure to the breast pump shield 20. Specifically, the negative pressure mechanism can be directly connected to the breast pump shield 20 via an air tube to directly apply negative pressure to the breast pump shield 20 and generate negative pressure within the breast pump shield 20 to draw milk into the milk storage container 40. Alternatively, a deformable gas-liquid separation component, such as a diaphragm or air bladder, can be used. The negative pressure generated by the negative pressure mechanism acts on the diaphragm or air bladder, causing the diaphragm and air bladder to deform or vibrate, thereby indirectly generating negative pressure within the breast pump shield 20 to draw milk into the milk storage container 40. The breast pump also includes a flow detection element. The control component is electrically connected to the flow detection element. When milk is pumped from the breast into the milk storage container 40, the flow detection element continuously monitors the flow rate of the milk. At the same time, the control component analyzes the data fed back by the flow detection element to obtain the milk flow data and feeds it back to the display element of the breast pump. This allows the user to know the amount of milk in the milk storage container 40, thus improving the user experience.

[0053] Furthermore, the breast pump also includes a diaphragm, which is connected to a negative pressure mechanism. The control component controls the negative pressure mechanism to work, thereby generating negative pressure inside the diaphragm. The diaphragm is also connected to the internal channel of the breast shield 20. The negative pressure generated by the diaphragm acts on the breast through the breast shield 20 to draw out the milk from the breast. The diaphragm also prevents the milk from flowing back into the main unit 10.

[0054] In one embodiment, such as Figure 1 As shown, the milk storage container 40 includes a venting structure 41 with a venting channel. The venting structure 41 is located at the top of the milk storage container 40, which is also the top of the breast pump. Therefore, after pumping, the breast pump is supported on the dust cover 30 to keep it upright or slightly tilted, thus preventing milk from flowing out of the venting structure 41.

[0055] In another embodiment, such as Figure 7 As shown, the milk storage container 40 is located below the main unit 10, and the breast pump shield 40 is positioned between the main unit 10 and the milk storage container 40, connecting the negative pressure mechanism in the main unit 10 and the milk storage container 40 respectively. The milk storage container 40 has a milk inlet, and the breast pump also includes a one-way valve 50 located at the milk inlet. The milk drawn by the negative pressure mechanism through the breast pump shield 20 enters the milk storage container 40 through the one-way valve 50. The venting structure 41 is located near the milk inlet of the milk storage container 40 or on the valve cover of the one-way valve 50. During the pumping process, because the breast pump remains upright, the milk in the milk storage container 40 will not flow out from the venting structure 41. After pumping is complete, the breast pump is supported on the dust cover 30 to keep it upright or slightly tilted, preventing the milk in the milk storage container 40 from flowing out from the venting structure 41.

[0056] Combination Figures 2 to 4 As shown, in one embodiment of this utility model, the dust cover 30 is provided with a support structure 31, and the entire breast pump is fitted with the support structure 31.

[0057] Specifically, the support structure 31 can be a protrusion, a groove, or a snap-fit ​​structure. The cooperation between the breast pump and the support structure 31 means that the support structure 31 fixes or limits the breast pump through geometric matching or friction. This can be achieved through contact of the support surface, embedded connection, or snap-fit ​​locking, so that the breast pump remains stable in a specific posture. For example, the protrusion of the support structure 31 can be embedded into the groove at the bottom of the breast pump, or the edge of the support surface can abut against the side wall of the breast pump, thereby forming a mechanical constraint.

[0058] Through the above technical solution, the cooperation between the support structure 31 and the whole breast pump makes it less likely to tip over or slide when the whole breast pump is placed upright, avoiding the risk of contamination caused by the breast shield 20 coming into contact with the outside world, while simplifying the user's operation process.

[0059] In other embodiments, the support structure 31 may also be used in conjunction with the milk storage container 40.

[0060] Combination Figure 3 As shown, in one embodiment of the present invention, the support structure 31 includes a plurality of support parts arranged at relatively intervals, and the support parts have a support surface on the side facing the breast pump body for point contact support of the breast pump body.

[0061] In this embodiment, the support portion refers to a partially protruding structure extending from the surface of the dust cover 30, specifically a cylindrical or hemispherical protrusion. Providing multiple support portions improves the stability of the entire breast pump. These multiple support portions can be arranged in a regular or irregular pattern, such as a ring or triangle, providing multiple points of support for the entire breast pump. These discrete points distribute the weight of the entire breast pump, enhancing stability and preventing it from tipping over.

[0062] Specifically, there can be 3, 4, or 5 support units. Of course, in addition to point contact support, the support units can also be connected to the breast pump via line contact or surface contact, depending on the specific situation.

[0063] In one embodiment of the present invention, the support structure 31 includes a plurality of support grooves 311a, and the bottom of the breast pump unit abuts against at least three support grooves 311a that are not on the same straight line, thereby achieving support.

[0064] In this embodiment, the support groove 311a is a recessed structure provided on one side of the dust cover 30. Specifically, it can be an arc-shaped groove or a V-shaped groove. The support groove 311a can be formed by recessing the surface of a protrusion provided on one side of the dust cover 30, or it can be formed by recessing one side of the dust cover 30. The support groove 311a is used to form a contact surface with the outer wall of the breast pump to limit the displacement of the entire breast pump.

[0065] The bottom of the breast pump refers to the housing area that contacts the support structure 31. The support structure 31 includes several support grooves 311a. When the dust cover 30 is in the second assembly state, the sidewalls of the support grooves 311a form a limiting constraint with the corresponding area of ​​the bottom of the breast pump. By setting the three support grooves 311a not on the same straight line, the distribution of the three support grooves 311a forms a triangular support area, keeping the center of gravity of the breast pump within the range of the three support grooves 311a, thus improving the stability of the breast pump. This structure allows the breast pump to be placed stably in an upright position when it is not held in hand, avoiding the risk of tipping over due to the curvature of the outer surface.

[0066] In one embodiment of the present invention, the support structure 31 further includes a support member, which is used to support and cooperate with some components of the breast pump, so that the breast pump can be stably in the second assembly state.

[0067] The support component can be a protrusion, groove, or snap-fit ​​structure, which supports and cooperates with the milk storage container 40, the breast shield 20, or other components of the breast pump to limit the displacement of the entire breast pump. Specifically, in the second assembly configuration, the support structure 31 can support and cooperate with the entire breast pump through the support part / or support groove 311a, or it can support and cooperate with the milk storage container 40 through the support component, or it can support and cooperate with the main unit 10 and the milk storage container 40 through the support part, support component, and support groove 311a, thereby keeping the entire breast pump upright or preventing milk from overflowing.

[0068] In one embodiment of this utility model, the support member is any one of the following: a groove structure, a support plate structure, or a protruding structure used to cooperate with the whole breast pump.

[0069] In this embodiment, the groove structure refers to a support member with a concave profile, specifically a U-shaped groove or an arc-shaped groove, and the inner wall of the groove forms point contact, line contact or surface contact with some components of the breast pump.

[0070] The support plate structure refers to a flat or curved thin plate-shaped support component, which can be a metal sheet or a plastic sheet. The sheet-shaped structure forms point contact, line contact, or surface contact with some components of the breast pump.

[0071] The raised structure refers to the support component that protrudes from the surface of the dust cover 30. Specifically, it can be a cylindrical boss or a strip rib. The top of the raised structure fits or abuts against the surface of some components of the breast pump.

[0072] Combination Figures 2 to 6 As shown, in one embodiment of the present invention, the support structure 31 is disposed on the inner surface of the dust cover 30 facing the breast suction shield 20 in the first assembly state.

[0073] In this embodiment, the inner surface of the dust cover 30 refers to the contact surface opposite to the breast pump cover 20 in the first assembly state (i.e., when the dust cover 30 covers the breast pump cover 20). The support structure 31 is disposed on the inner surface of the dust cover 30, specifically positioned opposite the funnel-shaped opening of the breast pump cover 20. This ensures that when the dust cover 30 is in the first assembly state, the support structure 31 is positioned inside the funnel opening of the breast pump cover 20 and spaced apart from it. Therefore, the dust cover 30 maintains its original shape when covering the breast pump cover 20, and when flipped over, its inner surface structure provides stable support for the entire breast pump. This ensures both the dustproof effect of the dust cover 30 and the cleanliness of its inner surface when supported, while also avoiding an increase in the size of the breast pump due to the addition of an independent support component, thus improving the product's portability.

[0074] Combination Figure 6 As shown, in one embodiment of the present invention, the dust cover 30 has an outer surface on the side away from the breast pump shield 20 in the first assembly state, and the outer surface is used to contact the external platform in the second assembly state so that the inner surface of the dust cover 30 supports the entire breast pump.

[0075] In this embodiment, the dust cover 30 can be flat, with anti-slip textures or grooves to improve the overall anti-slip effect of the breast pump. The external platform refers to the supporting surface on which the breast pump is placed, such as a table or countertop. This solution uses the outer surface of the dust cover 30 directly as the supporting surface, eliminating the need for additional supporting components and simplifying the breast pump structure.

[0076] In one embodiment of this utility model, the breast pump and the dust cover 30 are in a supporting or locking relationship in the second assembly state.

[0077] In this embodiment, the supporting relationship refers to the mechanical support formed between the dust cover 30 and the contact surface of the breast pump unit. This can be achieved by setting protrusions, grooves, or flat contact structures to maintain the upright posture of the breast pump unit or prevent milk spillage in the second assembly configuration. The locking relationship refers to the fixed connection between the dust cover 30 and the breast pump unit. This can be achieved by using an interference fit or a snap-fit ​​structure to achieve mechanical constraint.

[0078] In some specific embodiments, the support relationship can be achieved by setting multiple protruding support points on the inner surface of the dust cover 30 and contacting the bottom of the breast pump; the locking relationship can be achieved by setting elastic buckles on the edge of the dust cover 30 to fasten to the outer wall of the milk storage container 40, or by forming an interference fit between the annular flange of the dust cover 30 and the outer surface of the milk storage container 40 or the main unit 10 to achieve a fixed fit.

[0079] In one embodiment of this utility model, the locking relationship is an interference fit, a magnetic fit, or a mechanical locking fit with a snap-fit ​​structure.

[0080] In this embodiment, interference fit refers to the interference formed between two connecting parts through dimensional design. During assembly, the parts are fixed by the frictional resistance generated by material deformation. Specifically, this can be achieved by setting an elastic flange or groove that slightly exceeds the fit size in the contact area between the dust cover 30 and the breast pump. This generates a continuous clamping force to prevent the dust cover 30 from accidentally separating from the breast pump.

[0081] Specifically, the buckle structure can be configured with a hook with a cantilever beam on the dust cover 30, and a corresponding slot on the breast pump. Locking is achieved through the elastic engagement of the hook and the slot.

[0082] This solution uses an interference fit or snap-fit ​​structure to directly lock the dust cover 30 to the whole machine, which improves the stability of the fit between the dust cover 30 and the whole breast pump in the second assembly mode and reduces the risk of milk spillage.

[0083] Combination Figure 3 As shown, in one embodiment of the present invention, the support structure 31 includes a first support portion 313, a second support portion 314, and a third support portion 315 that are not on the same straight line. At least one of the first support portion 313, the second support portion 314, and the third support portion 315 includes a support groove 311a, and at least one of them includes a support block 312. The entire breast pump abuts against the groove wall of the support groove 311a and the support block 312.

[0084] In this embodiment, some of the first support portion 313, the second support portion 314, and the third support portion 315 are block-shaped support structures, while others are support structures with grooves on their surfaces. The first support portion 313, the second support portion 314, and the third support portion 315 are not aligned on a straight line, so that each of them provides three-point support to different locations on the outer surface of the breast pump. This three-point support structure improves the stability of the entire breast pump. In other embodiments, the number of contact points between the support structure 31 and the surface of the breast pump can be four, five, or more.

[0085] Combination Figure 3 As shown, in one embodiment of the present invention, the support structure includes a support block 312 protruding from the surface of the dust cover 30. The surface of the support block 312 is provided with at least two support grooves 311a, and the entire breast pump abuts against the bottom and side wall of the two support grooves 311a respectively.

[0086] In this embodiment, the support block 312 is a block-shaped support structure extending along the circumferential direction of the dust cover 30, and two support grooves 311a are respectively located at both ends of the support block 312 along the circumferential direction of the dust cover 30. When it is necessary to support the entire breast pump, the surface of the entire breast pump abuts against the support groove 311a. The structure of the support groove 311a also serves to limit the movement of the entire breast pump, preventing the entire breast pump from sliding on the support structure 31, thereby improving the stability of the support structure 31 in supporting the entire breast pump.

[0087] In another embodiment, a first support portion 313 protrudes from the surface of the dust cover 30. The first support portion 313 is conical and has a rounded chamfer at the end away from the dust cover 30. Two support grooves 311a are formed on the surfaces of the second support portion 314 and the third support portion 315, respectively. The first support portion 313 is conical with a rounded chamfer at the end to prevent it from scratching the entire breast pump. Both the second support portion 314 and the third support portion 315 are support structures with slots on their surfaces.

[0088] Combination Figure 4 As shown, in one embodiment of the present invention, the support structure 31 includes an assembly groove 316, which engages with at least a portion of the outer surface of the breast pump.

[0089] In this embodiment, at least a portion of the inner wall of the mounting groove 316 is adapted to the overall shape of the breast pump, or the entire inner wall of the mounting groove 316 is adapted to at least a portion of the overall shape of the breast pump. This allows the entire breast pump to be at least partially embedded within the mounting groove 316, thereby improving the stability of the support for the entire breast pump. Figure 4 The cross-sectional shape of the mounting groove 316 shown is circular. In other embodiments, it can also be rectangular, elliptical, or other structures.

[0090] In one embodiment of this utility model, the mounting groove 316 is detachably connected to the bottom of the breast pump. The connection method can be an interference fit, snap-fit, magnetic attraction, or other detachable connection. For example, an elastic element can be provided at the opening of the mounting groove 316, or the support structure 31 near the opening of the mounting groove 316 can be made of an elastic material, so that after the breast pump is inserted into the mounting groove 316, it is in an interference fit with the support structure 31. In other embodiments, the breast pump can also be rested against the wall of the mounting groove 316.

[0091] Combination Figure 4As shown, in one embodiment of this utility model, two support grooves 311a are provided at the opening of the mounting groove 316. The two support grooves 311a are arranged at intervals along the circumference of the mounting groove 316 to support the bottom end face and side wall of the breast pump. The breast pump part abuts against the bottom and side wall of the two support grooves 311a, and the circumferential side of the breast pump abuts against the edge of the opening of the mounting groove 316.

[0092] In this embodiment, two support grooves 311a are symmetrically arranged along the central vertical plane of the dust cover 30. By setting the support grooves 311a and using the bottom and sidewalls of the support grooves 311a to limit and abut against the entire breast pump, the support structure 31 in this embodiment supports the entire breast pump, with one end of the entire breast pump abutting against the two support grooves 311a. For example Figure 1 As shown, the peripheral side of the breast pump abuts against the edge of the groove 316. At this time, the angle between the end face of the main unit 10 facing the milk inlet and the surface of the dust cover 30 is close to 90 degrees. The position of the breast pump at this time allows the user's hands to avoid the breast shield 20 as much as possible when picking it up and putting it down, thereby keeping the breast shield 20 clean.

[0093] Combination Figure 4 As shown, in one embodiment of this utility model, the edge of the support groove 311a is provided with a rounded chamfer to ensure a smooth transition at the edge of the support groove 311a, preventing the breast pump from being scratched when it comes into contact with the groove wall of the support groove 311a. Furthermore, the rounded chamfer also provides a buffer, allowing the surface of the breast pump to be supported by the edge of the mounting groove 316, rather than the edge of the support groove 311a. This support structure increases the spacing between the multiple support positions of the support structure 31, thereby improving the stability of the support structure 31 in supporting the entire breast pump.

[0094] Combination Figure 4 As shown, in one embodiment of this utility model, the inner diameter of the mounting groove 316 gradually decreases in the direction away from the dust cover 30.

[0095] In this embodiment, since the breast pump is hemispherical or semi-ellipsoidal in shape, when the outer surface of the breast pump comes into contact with the mounting groove 316 of the support structure 31, part of the breast pump is embedded in the mounting groove 316. The inner diameter of the mounting groove 316 gradually decreases in the direction away from the dust cover 30, that is, the mounting groove 316 is constricted in the direction away from the dust cover 30. This allows the space inside the mounting groove 316 to provide better clearance for the breast pump, so that the breast pump can be stably supported in the preset support position of the support structure 31.

[0096] Combination Figure 5 As shown, in one embodiment of this utility model, the end face of the support structure 31 away from the dust cover 30 is an arc-shaped surface 311b, and at least part of the surface of the breast pump is in contact with the arc-shaped surface 311b.

[0097] In this embodiment, the curvature of the arc surface 311b is designed according to the overall shape of the breast pump so that the surface of the breast pump can better fit the arc surface 311b. Compared with the point contact or line contact scheme between the support structure 31 and the breast pump in the above embodiments, the surface contact support between the support structure 31 and the breast pump in this embodiment can further improve the stability of the support structure 31 in supporting the breast pump.

[0098] Furthermore, two arc-shaped surfaces 311b are provided, respectively on both sides of the support structure 31, thereby increasing the contact area between the support structure 31 and the entire breast pump. In addition, a support groove 311a is also provided on the end face of the support structure 31, and the entire breast pump abuts against the bottom and side wall of the support groove 311a, thereby limiting the position of the entire breast pump.

[0099] Of course, the curved surface 311b and the support block 312 can be set at the same time to achieve a combination of point support and surface support.

[0100] It should be noted that the support structure 31 and the breast pump are used to clearly describe some embodiments when the dust cover 30 and the breast pump are in the second assembly state. In addition, the support structure 21 can also be used to support the milk storage container 40, or the support structure 31 can be used to support both the main unit 10 and the milk storage container 40.

[0101] In one embodiment of this utility model, the support structure 31 and the dust cover 30 are integrally formed to reduce the number of parts in the breast pump and improve assembly efficiency. Of course, in other embodiments, the support structure 31 and the dust cover 30 can also be fixedly connected by welding, bonding or other methods, or detachably connected by snap-fit ​​or bolt connection or other methods.

[0102] Combination Figures 1 to 5 As shown, in one embodiment of the present invention, the dust cover 30 has a dustproof groove 32 recessed on one side where the support structure 31 is provided, and an avoidance groove 33 is recessed near the groove edge of the dustproof groove 32.

[0103] In this embodiment, by providing a dustproof groove 32, when the dustproof cover 30 is fastened to the end of the main unit 10, the end of the main unit 10 is embedded in the dustproof groove 32. Therefore, the design of the dustproof groove 32 can increase the contact area between the dustproof cover 30 and the main unit 10, improving the sealing and dustproof effect of the breast pump cover 20. A relief groove 33 is formed by recessing the edge of the dustproof cover 30 near the groove 32. When the user removes the dustproof cover 30 from the main unit 10, the relief groove 33 provides space for the user's hand or fingers to grip, facilitating the removal of the dustproof cover 30. Furthermore, a grip plate is provided at the bottom of the relief groove 33, extending radially to the outside of the dustproof cover 30. The grip plate further increases the user's grip area, improving the convenience of removing the dustproof cover 30.

[0104] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A breast pump, characterized in that, include: Main unit, milk storage container, breast pump shield; The breast shield includes a flange that conforms to the breast and a milk outlet for discharging milk into the milk storage container; The main unit includes a negative pressure mechanism, which can directly or indirectly generate negative pressure inside the breast shield to provide suction power for the breast pump. The main unit, milk storage container, and breast shield work together to form an integrated, one-piece breast pump. The dust cover and the breast pump assembly have at least two assembly configurations: In the first assembly configuration, the dust cover covers the breast shield to provide a dustproof function; Second assembly configuration: The dust cover is assembled or fitted with the breast pump to support the breast pump in an upright position or to prevent milk from spilling out.

2. The breast pump as described in claim 1, characterized in that, The dust cover is provided with a support structure, and in the second assembly configuration, the entire breast pump is fitted with the support structure.

3. The breast pump as described in claim 2, characterized in that, The support structure includes multiple support parts arranged at relatively intervals. Each support part has a support surface on one side facing the breast pump, which is used to point-contact and support the breast pump.

4. The breast pump as described in claim 2, characterized in that, The support structure includes several support grooves, and the bottom of the breast pump unit abuts against at least three of the support grooves that are not on the same straight line, thereby achieving support.

5. The breast pump as described in claim 2, characterized in that, The support structure also includes a support member, which is used to support and cooperate with some components of the breast pump, so that the breast pump can be stably positioned in the second assembly state.

6. The breast pump as described in claim 5, characterized in that, The support member is any one of the following: a groove structure, a support plate structure, or a protruding structure used to cooperate with the breast pump.

7. The breast pump as described in any one of claims 2 to 6, characterized in that, The support structure is disposed on the inner surface of the dust cover facing the breast shield in the first assembly configuration.

8. The breast pump as described in claim 7, characterized in that, The dust cover has an outer surface on the side away from the breast pump shield in the first assembly configuration, and the outer surface is used to contact an external platform in the second assembly configuration so that the inner surface of the dust cover supports the entire breast pump.

9. The breast pump as described in any one of claims 1 to 6, characterized in that, The breast pump and the dust cover in the second assembly configuration are in a supporting or locking relationship.

10. The breast pump as described in claim 9, characterized in that, The locking relationship is an interference fit, a magnetic fit, or a mechanical locking fit with a snap-fit ​​structure.

11. The breast pump as described in claim 2, characterized in that, The support structure includes a first support part, a second support part, and a third support part that are not on the same straight line. At least one of the first support part, the second support part, and the third support part includes a support groove, and at least one of them includes a support block. The entire breast pump abuts against the groove wall of the support groove and the support block.

12. The breast pump as described in claim 2, characterized in that, The support structure includes a support block protruding from the surface of the dust cover. The surface of the support block has at least two support grooves, and the entire breast pump is in contact with the bottom and side wall of the support grooves respectively.

13. The breast pump as described in any one of claims 2 to 6, characterized in that, The support structure includes an assembly groove that mates with at least a portion of the outer surface of the breast pump.

14. The breast pump as described in claim 13, characterized in that, The mounting groove is detachably connected to the bottom of the breast pump.

15. The breast pump as described in claim 2, characterized in that, The end face of the support structure away from the dust cover is an arc-shaped surface, and at least part of the surface of the breast pump is in contact with the arc-shaped surface.

16. The breast pump as described in any one of claims 2 to 6, characterized in that, The supporting structure and the dust cover are integrally formed.

17. The breast pump as described in claim 1, characterized in that, The milk storage container includes a venting structure, which is connected to the internal cavity of the milk storage container and is used to expel air from inside the milk storage container when storing milk.

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