Breast pump sealing mechanism and breast pump

Abstract

The utility model provides a breast pump sealing mechanism and breast pump relates to breast pump technical field, wherein the sealing mechanism includes milk cover body, milk cover body includes milk bowl cover and sealing structure, the sealing structure includes rigid sealing piece and flexible sealing piece, and the rigid sealing piece and flexible sealing piece form connecting neck between connecting neck, and the connecting neck is connected with the flexible sealing piece. The rigid sealing piece of a rigid structure is adopted, stable strength and stability can be provided, the flexible sealing piece can elastically deform in the direction close to the rigid sealing piece, and the connecting flange located in the connecting clamping groove can be attached to the rigid sealing piece more tightly; the elastic deformation can compensate poor contact between the connecting flange and the connecting clamping groove caused by errors or deviation during assembly, tight connection between the milk cover body and the milk bowl and reasonable combination of a rigid structure and a flexible structure are guaranteed, the dual functions of rigid supporting and flexible adaptation are achieved, sealing tightness is guaranteed, and the service life of the milk cover body and the milk bowl is prolonged. And the stability and the adaptability of the whole structure are also improved.

Description

Technical Field

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

[0002] With the popularization of breastfeeding, breast pumps, as a practical tool for storing breast milk, are increasingly favored by new mothers. The main function of a breast pump is to help mothers effectively express milk from their mammary glands, while milk storage containers are key equipment to ensure that expressed breast milk can be safely stored. As a special milk storage container, milk bowls have important functions and practical value.

[0003] Common milk storage containers mainly consist of a milk cap body and a milk bowl. The milk cap body includes a milk bowl lid and a sealing structure. The sealing structure is located inside the milk bowl lid. When the milk bowl lid is connected to the milk bowl, the sealing structure directly abuts against the inner wall of the milk bowl to form a seal, preventing milk leakage during storage.

[0004] However, most breast milk storage devices on the market currently use flexible materials for their sealing structure and bottle lids, resulting in insufficient sealing effect and structural strength. This design has certain limitations during the milk expression process, especially when there is a large range of motion. The inner wall of the bottle is too smooth, which makes it easy for the bottle lid and sealing structure to detach from the bottle, causing milk to spill out of the storage component and affecting the safety and convenience of breast milk storage.

[0005] Due to the use of flexible materials, which are not strong enough, the connection between the milk cap and the milk bowl is not stable enough during the milk feeding process. It cannot withstand a large range of motion, and the sealing effect is easily affected by the external environment, resulting in poor sealing and easy leakage of milk.

[0006] This utility model was proposed in response to the shortcomings of the existing technology. Utility Model Content

[0007] The sealing structure and lid of most existing milk storage devices mentioned above are usually made of flexible materials. The strength of flexible materials is insufficient, which makes the connection between the lid and the bowl not stable enough during milk expression. They cannot withstand a large range of motion, and the sealing effect is easily affected by the external environment, resulting in poor sealing and easy milk leakage.

[0008] The technical solution adopted by this utility model to solve its technical problem is:

[0009] A breast pump sealing mechanism includes a breast cap body, the breast cap body including a breast bowl cover and a sealing structure disposed on the breast bowl cover, the sealing structure including a rigid sealing element and a flexible sealing element, and a connecting groove with an opening is formed between the rigid sealing element and the flexible sealing element, the connecting groove being able to engage with the connecting flange of the breast bowl.

[0010] As described above, in the breast pump sealing mechanism, the milk bowl cover is a flexible structure, and the milk bowl cover and the flexible sealing element are integrally formed; the milk bowl cover and the rigid sealing element are connected by an overmolded form, or by a detachable connection form.

[0011] As described above, the breast pump sealing mechanism includes a rigid seal with a sealing ring and a rigid connecting protrusion thereon, and a flexible seal with a first flexible connecting protrusion corresponding to the rigid connecting protrusion. The milk bowl cover has a receiving groove with an opening on one side, which can accommodate part of the sealing ring. The receiving groove is located at the bottom of the first flexible connecting protrusion.

[0012] As described above, the sealing mechanism of the breast pump has multiple through holes arranged circumferentially on the surface of the sealing connecting ring, and multiple connecting posts corresponding to the through holes are arranged in the receiving groove, with the connecting posts located inside the through holes.

[0013] As described above, in the breast pump sealing mechanism, the edge of the milk bowl cover is provided with a second flexible connecting protrusion, and the rigid connecting protrusion is located between the second flexible connecting protrusion and the first flexible connecting protrusion, and the second flexible connecting protrusion is connected to the rigid connecting protrusion.

[0014] As described above, the breast pump sealing mechanism has a connecting member between the second flexible connecting protrusions that can improve the connection strength between the two. The connecting member includes a matching first mating step and a second mating step. The first mating step is provided on the rigid connecting protrusion, and the second mating step is provided on the second flexible connecting protrusion.

[0015] As described above, in the breast pump sealing mechanism, the flexible seal has a sealing flange on the side near the rigid seal, and the sealing flange can abut against the inner wall of the milk bowl.

[0016] As described above, the breast pump sealing mechanism includes a first flexible connecting protrusion on the milk bowl lid, which gradually slopes inward toward the center of the milk bowl lid.

[0017] As described above, the breast pump sealing mechanism has a first outwardly extending handle flange on the outer edge of the milk bowl lid, which facilitates the user to attach or detach the milk bowl lid body by gripping it.

[0018] A breast pump includes a milk bowl and a breast pump sealing mechanism as described in any of the above claims. The milk bowl is provided with a connecting flange, which is engaged in a connecting groove. The flexible seal is elastically deformable, so that the outer wall of the milk bowl abuts against the inner wall of the rigid seal, and the outer wall of the connecting flange abuts against the inner walls of the rigid seal and the flexible seal, respectively.

[0019] The beneficial effects of this utility model are:

[0020] This utility model relates to a breast pump sealing mechanism and a breast pump, and pertains to the field of breast pump technology. The sealing mechanism includes a breast cap body, which comprises a breast bowl cover and a sealing structure. The sealing structure includes a rigid seal and a flexible seal. A connecting groove is formed between the rigid and flexible seals to engage with the connecting flange of the breast bowl. By using a rigid seal, a stable and robust structure is provided. The flexible seal can elastically deform towards the rigid seal, achieving a tighter fit between the connecting flange and the rigid seal within the connecting groove. This elastic deformation compensates for poor contact between the connecting flange and the connecting groove due to errors or deviations during assembly, ensuring a tight connection between the breast cap body and the breast bowl. The rational combination of rigid and flexible structures achieves a dual function of rigid support and flexible adaptation, ensuring not only a tight seal but also improving the stability and adaptability of the entire structure.

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the breast pump according to Embodiment 1 of this utility model;

[0023] Figure 2 This is a front view schematic diagram of the breast pump according to Embodiment 1 of this utility model;

[0024] Figure 3 for Figure 2 Cross-sectional view and enlarged view along line AA;

[0025] Figure 4 for Figure 2 Cross-sectional view and enlarged view along line BB;

[0026] Figure 5 This is a schematic diagram and a partially enlarged schematic diagram of the structure of the milk foam body according to Embodiment 1 of this utility model;

[0027] Figure 6 This is an exploded view of the milk foam body of Embodiment 1 of this utility model;

[0028] Figure 7 This is a front view schematic diagram of the milk bowl lid according to Embodiment 1 of this utility model;

[0029] Figure 8 for Figure 7 Cross-sectional view and enlarged view along line CC;

[0030] Figure 9 This is a schematic diagram of the breast pump according to Embodiment 2 of this utility model;

[0031] Figure 10 This is an exploded view of the breast pump according to Embodiment 2 of this utility model. Detailed Implementation

[0032] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings. The described embodiments are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0033] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0034] Furthermore, the use of terms such as "first" and "second" in this utility model is 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 as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0035] Example 1:

[0036] like Figures 1 to 8 As shown, the breast pump sealing mechanism of this embodiment includes a breast cap body 1. The breast cap body 1 includes a breast bowl cover 11 and a sealing structure 12 disposed on the breast bowl cover 11. The sealing structure 12 includes a rigid sealing element 121 and a flexible sealing element 111. A connecting groove 13 with an opening is formed between the rigid sealing element 121 and the flexible sealing element 111. The connecting groove 13 can be engaged with the connecting flange 21 of the breast bowl 2.

[0037] Specifically, the sealing structure 12 in this embodiment includes a rigid seal 121 and a flexible seal 111. By adopting the rigid seal 121 with a rigid structure, it can provide solid strength and stability, resist the suction and external force during the milk feeding process, and maintain a firm connection between the milk cap body 1 and the milk bowl 2. The rigid seal 121 can also ensure the tight engagement of the connecting groove 13 and the connecting flange 21, making it less likely to loosen or fall off.

[0038] Specifically, the flexible seal 111 is used for adaptability and elastic sealing. The flexible seal 111 can undergo elastic deformation in the direction closer to the rigid seal 121, so as to achieve a tighter fit between the connecting flange 21 and the rigid seal 121. This elastic deformation can compensate for poor contact between the connecting flange 21 and the connecting groove 13 caused by errors or deviations during assembly, ensuring a tight connection between the milk cap body 1 and the milk bowl 2. The reasonable combination of rigid and flexible structures realizes the dual function of rigid support and flexible adaptation, which not only ensures the tightness of the seal, but also improves the stability and adaptability of the entire structure.

[0039] Furthermore, the function of the connecting slot is to firmly attach the milk cap body to the connecting flange 21 of the milk bowl, achieving a reliable physical connection. The opening of the slot design allows for flexible operation, making it convenient for users to quickly assemble and disassemble the milk cap.

[0040] like Figures 1 to 8 As shown, the milk bowl lid 11 in this embodiment has a flexible structure, which helps to improve the user's comfort during use. The milk bowl lid 11 and the flexible sealing element 111 are integrally molded, which is convenient for production. Preferably, the milk bowl lid 11 and the rigid sealing element 121 are connected by overmolding. Specifically, the rigid sealing element 121 is first injection molded (using hard plastic), and then the rigid sealing element 121 is placed in a secondary molding mold. Then, a flexible material (such as soft plastic) is poured in, so that the rigid sealing element 121 and the flexible milk bowl lid 11 are injection molded in a secondary process. The flexible material can penetrate or adhere well to the surface of the rigid material in the molten state, forming a strong interface bond, thereby achieving the integral molding effect of rigid and flexible materials.

[0041] Furthermore, during the secondary injection molding process, the flexible sealing element 111 is integrally formed with the flexible milk bowl lid 11.

[0042] Specifically, the rigid sealing element 121 forms a stable frame on the flexible milk cup lid 11, effectively improving the structural strength of the milk cup body 1. The secondary injection molding avoids the gap problem that may occur in the traditional multi-part splicing, realizing a seamless combination between the milk cup body and the sealing structure, effectively improving the sealing performance of the milk cup body 1 and reducing the risk of milk leakage.

[0043] Preferably, the two materials are combined in one mold through a two-stage injection molding process, eliminating the need for additional assembly steps and auxiliary materials (such as glue or screws), which greatly improves production efficiency. Through two-stage injection molding, the rigid and flexible materials achieve a high-strength bond at the interface, avoiding the loosening or separation caused by long-term use of traditional splicing methods (such as adhesives, clips, etc.).

[0044] In other embodiments, the milk bowl lid 11 and the rigid seal 121 are connected by a detachable connection, and a suitable design can be selected according to actual needs.

[0045] like Figures 1 to 8 As shown, the rigid seal 121 in this embodiment includes a sealing connecting ring 1211 and a rigid connecting protrusion 1212 disposed thereon. The flexible seal 111 includes a first flexible connecting protrusion corresponding to the rigid connecting protrusion 1212. Specifically, the sealing connecting ring 1211 provides a more sufficient connection volume between the rigid seal 121 and the milk bowl lid 11, thereby improving the connection strength between the milk bowl lid 11 and the rigid seal 121. Furthermore, by providing the rigid connecting protrusion 1212 and the first flexible connecting protrusion, a connecting groove 13 is formed between them to achieve a snap-fit ​​connection with the connecting flange 21.

[0046] Preferably, in this embodiment, the rigid connecting protrusion 1212 is provided with a first groove 122, and the first flexible connecting protrusion is provided with a second groove 112 corresponding to the first groove 122. The rigid connecting protrusion 1212, the first groove 122, the first flexible connecting protrusion and the second groove 112 surround to form a connecting slot 13 with an opening. Through the multi-point combination of the rigid connecting protrusion 121, the first flexible connecting protrusion 111 and the corresponding grooves (the first groove 122 and the second groove 112), the sealing performance of the connecting slot is more stable and durable, which can effectively prevent the milk cap body and the milk bowl from being not securely connected during the milk feeding process, and prevent the milk from leaking from the joint between the two, or prevent the two from separating.

[0047] Preferably, even if the suction fluctuates or the user's hand operation causes vibration during the milk pumping process, the elastic deformation of the first flexible connection protrusion can continuously adjust the sealing state, thereby effectively preventing milk from spilling out.

[0048] The milk bowl lid 11 of this embodiment is provided with a receiving groove 113 with an opening on one side. The receiving groove 113 can accommodate part of the sealing connecting ring 1211. The receiving groove 113 is located at the bottom of the first flexible connecting protrusion.

[0049] Specifically, the receiving groove 113 provides an embedded fixed position for the sealing connecting ring 1211. The sealing connecting ring 1211 is partially embedded in the receiving groove so that the flexible material milk bowl lid 11 wraps around a part of the rigid seal 121, thereby forming a more secure connection and avoiding loosening or separation at the rigid-flexible joint.

[0050] Specifically, during the actual use of a breast pump, the suction generated by milk expression, the user's loading and unloading operations, or external vibrations may cause pulling or impact forces on the sealing structure. By embedding some of the rigid seals 121 into the receiving groove, this design can effectively disperse the force, reduce the stress on a single connection point, and thus improve the overall structure's impact resistance.

[0051] The receiving groove 113 not only provides a fixed position that combines rigidity and flexibility, but also increases the contact area between the flexible milk bowl lid 11 and the rigid seal 121 through the "embedded" design. The increased contact area can form a tighter fit, thereby improving the structural stability, sealing performance and service life of the milk bowl lid body 1 formed by the connection between the milk bowl lid 11 and the sealing structure 12.

[0052] Furthermore, the embedded design hides part of the edges of the sealing structure in flexible material, reducing the exposed area and thus reducing the number of cleaning dead spots during the cleaning process, making it easier for users to clean the milk foam faster and more thoroughly.

[0053] Furthermore, the design of the receiving groove 113 can be well compatible with the combination of rigid seal 121 and flexible milk bowl lid in the secondary injection molding process. Through mold design, the embedded part of the sealing connecting ring 1211 can be precisely positioned, thereby ensuring that the size and bonding strength of each product are consistent.

[0054] like Figures 1 to 8 As shown, the sealing connecting ring 1211 of this embodiment has a plurality of through holes 123 arranged circumferentially on its surface, and a plurality of connecting posts 114 corresponding to the through holes 123 are provided in the receiving groove 113, and the connecting posts 114 are located in the through holes 123.

[0055] Specifically, the through-hole 123 in this embodiment can optimize the injection molding process, providing multiple flow channels for plastic injection, helping the soft rubber material to flow quickly and evenly, so that the soft rubber material can be more evenly distributed to various areas of the mold cavity, avoiding the formation of injection dead corners or air retention, thereby ensuring that the cavity is completely filled. Since the soft rubber material can flow quickly through the through-hole 123, the filling time of the plastic during the injection molding process is significantly shortened, thereby improving production efficiency and effectively improving the compatibility and bonding strength of the material.

[0056] The through-hole 123 design increases the contact area between the soft and hard rubber. This increased contact area not only enhances the mechanical bonding strength between the materials but also further improves the stability of the connection through friction.

[0057] Furthermore, when the flexible plastic (soft rubber material) is injected into the through hole 123, the plastic cools and solidifies inside the through hole, forming a through connecting post 114. The presence of the connecting post 114 creates a multi-point embedded physical locking structure between the milk bowl lid 11 and the sealing connecting ring 1211, forming an embedded structure similar to a "rivet", thereby significantly enhancing the bonding strength between the milk bowl lid 11 and the rigid sealing element 121.

[0058] Furthermore, the connecting post 114 extends through the through hole 123. This design greatly improves the pull-out resistance of the rubber coating, ensuring that the rigid seal 121 will not accidentally fall off during use or cleaning.

[0059] In other embodiments, the milk bowl lid 11 and the rigid seal 121 are detachably connected. The user can raise the first flexible connecting protrusion to enlarge the opening of the receiving groove 113, then insert part of the sealing connecting ring 1211 into the receiving groove 113, and insert the connecting post 114 into the through hole 123 (at this time, one end of the connecting post 114 is a free end and is not integrally formed with the milk bowl lid 11), and then press the milk bowl lid 11 and the sealing connecting ring 1211 to achieve assembly. A suitable design can be selected according to actual needs.

[0060] like Figures 1 to 8 As shown, the edge of the milk bowl lid 11 in this embodiment is provided with a second flexible connecting protrusion 115. The rigid connecting protrusion 1212 is located between the second flexible connecting protrusion 115 and the first flexible connecting protrusion. The second flexible connecting protrusion 115 is connected to the rigid connecting protrusion 1212. Preferably, in this embodiment, a connecting member is provided between the second flexible connecting protrusions 115 to improve the connection strength between the two. The connecting member includes a matching first mating step 124 and a second mating step 116. The first mating step 124 is provided on the rigid connecting protrusion 1212, and the second mating step 116 is provided on the second flexible connecting protrusion 115. Through the cooperation of the mating steps, the connection strength of the rigid connecting protrusion 1212 and the second flexible connecting protrusion 115 can be further improved to ensure the structural strength after the milk bowl lid 11 and the rigid sealing member 121 are connected. Furthermore, this design further increases the contact area of ​​the sealing interface, forming a multi-layer sealing structure, which can maintain a stable sealing effect even under fluctuations in the suction of the breast pump or long-term use.

[0061] Furthermore, the design of the first mating step 124 and the second mating step 116 not only increases the number of connection points, but also disperses stress concentration when external forces are applied, preventing damage caused by excessive pressure on a single part, and improving the stability of the overall structure.

[0062] In other embodiments, the connecting member can be a mating between a protrusion and a groove, and a suitable design can be selected according to actual needs.

[0063] like Figures 1 to 8 As shown, in this embodiment, the flexible sealing element 111 has a sealing flange 1111 on the side near the rigid sealing element 121. The sealing flange 1111 is made of a flexible material, which is soft and has a certain elasticity. When the milk cap body 1 and the milk bowl 2 are installed, the sealing flange 1111 will deform due to compression and fit against the inner wall of the milk bowl 2, thereby forming a stable sealing interface. The design of the sealing flange 1111 effectively expands the contact area between the flexible sealing element 111 and the inner wall of the milk bowl 2. The increase in contact area not only improves the sealing performance, but also better resists the risk of air leakage caused by suction fluctuations or external forces.

[0064] Preferably, through the deformation of the sealing flange 1111 and the supporting effect of the flexible seal 111 and the rigid seal 121, a multi-seal system combining rigidity and flexibility is formed. This design can provide a more stable sealing effect during the use of the breast pump and maintain airtightness even when the suction fluctuates greatly.

[0065] like Figures 1 to 8 As shown, in this embodiment, the first flexible connecting protrusion gradually tilts inward toward the center of the milk bowl lid 11, thereby causing the opening size of the connecting groove 13 to gradually decrease in the direction toward the inside of the connecting groove 13. This design makes full use of the elasticity and geometric shrinkage characteristics of the flexible material, so that the connecting flange 21 of the milk bowl 2 can smoothly pass through the opening and be inserted into the connecting groove 13, and achieve a firm connection after being inserted. The tilted first flexible connecting protrusion provides a guiding function during the insertion process, avoiding insertion difficulties or jamming due to the opening being too narrow.

[0066] like Figures 1 to 8 As shown, the included angle between the sealing ring 1211 and the rigid connecting protrusion 1212 in this embodiment is an acute angle.

[0067] When the sealing ring 1211 and the rigid connecting protrusion 1212 form an acute angle, the sealing structure will apply a certain inward squeezing force to the outside during the connection process. This pressure can effectively improve the adhesion of the sealing surface, reduce the generation of gaps, and further improve the sealing effect.

[0068] The acute angle design allows the rigid connecting protrusion 1212 to "hug" the connecting flange 21 during the engagement of the first flexible connecting protrusion 111, increasing the contact area between the connecting groove 13 and the connecting flange 21. By utilizing the elastic deformation capability of the flexible material, the sealing performance remains stable during long-term use, forming a more perfect sealing interface and preventing breast milk or liquid from leaking through gaps.

[0069] like Figures 1 to 8 As shown, a breast pump according to this embodiment includes a milk bowl 2 and a breast pump sealing mechanism as described in any of the above. The milk bowl 2 is provided with a connecting flange 21, which is engaged in a connecting groove 13. The first flexible connecting protrusion 111 can elastically deform so that the outer wall of the milk bowl 2 abuts against the inner wall of the rigid sealing member 121, so that the outer wall of the connecting flange 21 abuts against the inner walls of the rigid sealing member 121 and the flexible sealing member 111 respectively.

[0070] Preferably, in this embodiment, the flexible seal 111 is elastically deformable, so that the outer wall of the milk bowl 2 abuts against the inner wall of the rigid seal 121, so that the outer wall of the connecting flange 21 abuts against the inner walls of the rigid seal 121 and the flexible seal 111 respectively.

[0071] The sealing structure 12 adopts a dual sealing design of rigidity and flexibility to ensure that the milk will not leak during storage or pumping, thus protecting the hygiene and safety of breast milk.

[0072] Furthermore, the open structure design of the connecting slot 13 makes the assembly process of the milk cap and the milk bowl very simple. Just align the positions and gently snap them in to complete the connection. When disassembling, a gentle pull will separate them. The snap-fit ​​design does not require additional threads or tightening operations, nor does it require complicated tools to achieve a firm connection. This design is very user-friendly (especially for new mothers), saving operation time and improving ease of use.

[0073] Preferably, the flexible material of the flexible seal 111 can accommodate minor installation errors, while the rigid seal 121 provides structural strength. This combination adapts to the needs of the breast pump in different usage environments, ensuring a stable connection and good sealing.

[0074] This sealing structure is compatible with both manual and electric breast pumps, providing a stable and reliable connection and sealing performance regardless of suction strength or frequency of use.

[0075] The breast pump in this embodiment, through its innovative design of the milk bowl 2 and its sealing structure, not only meets the high standards of sealing, connection stability, and ease of operation required by breast pumps, but also significantly improves product durability and production efficiency. This design provides a highly efficient, reliable, and user-friendly solution for breast pump products, giving it strong market competitiveness and user appeal.

[0076] Preferably, in other embodiments, the flexible seal 111 is connected to the milk bowl lid 11 by a detachable connection, and the rigid seal 121 is integrally formed with the milk bowl lid 11; or, the flexible seal 111 is connected to the milk bowl lid 11 by a detachable connection, and the rigid seal 121 is connected to the milk bowl lid 11 by a detachable connection, and a suitable design can be selected according to actual needs.

[0077] Example 2:

[0078] like Figures 9 to 10 As shown, the difference between this embodiment and embodiment 1 is that the outer edge of the milk bowl lid 11 in this embodiment is provided with an outwardly extending first handle flange 117. The first handle flange 117 facilitates the user to attach and detach the milk cap body 1 from the milk bowl 2 by gripping it, thereby further improving the loading and unloading efficiency between the milk cap body 1 and the milk bowl 2.

[0079] Preferably, to increase the structural strength of the first handle flange 117, the rigid sealing member 121 is provided with a second handle flange 125 corresponding to the first handle flange 117. The second handle flange 125 is located inside the first handle flange 117. Even if the user repeatedly operates the milk bowl lid with force, the integrity of the handle structure can be maintained, and it is not easy to break or permanently deform.

[0080] Preferably, there are two first handle flanges 117, which are respectively located on both sides of the bottom outer edge of the milk bowl lid 11. This symmetrical layout design can ensure that the user can operate more conveniently and quickly in any direction without having to adjust the direction of the milk bowl lid.

[0081] The above examples are merely illustrative of the technical content of this utility model to facilitate reader understanding, but do not imply that the implementation of this utility model is limited to these embodiments. Any technical extensions or re-creations made based on this utility model are protected by this utility model. The scope of protection of this utility model is defined by the claims.

Claims

1. A breast pump sealing mechanism, characterized in that: The milk cap body (1) includes a milk bowl lid (11) and a sealing structure (12) provided on the milk bowl lid (11). The sealing structure (12) includes a rigid seal (121) and a flexible seal (111). A connecting groove (13) with an opening is formed between the rigid seal (121) and the flexible seal (111). The connecting groove (13) can be engaged with the connecting flange (21) of the milk bowl (2).

2. The breast pump sealing mechanism according to claim 1, characterized in that: The milk bowl lid (11) is a flexible structure, and the milk bowl lid (11) and the flexible sealing element (111) are integrally formed; the milk bowl lid (11) and the rigid sealing element (121) are connected by a rubber coating or by a detachable connection.

3. The breast pump sealing mechanism according to claim 2, characterized in that: The rigid seal (121) includes a sealing connecting ring (1211) and a rigid connecting protrusion (1212) disposed thereon. The flexible seal (111) includes a first flexible connecting protrusion corresponding to the rigid connecting protrusion (1212). The milk bowl cover (11) is provided with a receiving groove (113) with an opening on one side. The receiving groove (113) can accommodate part of the sealing connecting ring (1211). The receiving groove (113) is located at the bottom of the first flexible connecting protrusion.

4. The breast pump sealing mechanism according to claim 3, characterized in that: The sealing connecting ring (1211) has a plurality of through holes (123) arranged circumferentially on its surface, and a plurality of connecting posts (114) corresponding to the through holes (123) are provided in the receiving groove (113), and the connecting posts (114) are located in the through holes (123).

5. The breast pump sealing mechanism according to claim 3, characterized in that: The edge of the milk bowl lid (11) is provided with a second flexible connecting protrusion (115), and the rigid connecting protrusion (1212) is located between the second flexible connecting protrusion (115) and the first flexible connecting protrusion. The second flexible connecting protrusion (115) is connected to the rigid connecting protrusion (1212).

6. The breast pump sealing mechanism according to claim 5, characterized in that: A connecting member is provided between the second flexible connecting protrusions (115) to improve the connection strength between them. The connecting member includes a matching first mating step (124) and a second mating step (116). The first mating step (124) is provided on the rigid connecting protrusion (1212), and the second mating step (116) is provided on the second flexible connecting protrusion (115).

7. The breast pump sealing mechanism according to claim 1, characterized in that: The flexible seal (111) has a sealing flange (1111) on the side near the rigid seal (121), and the sealing flange (1111) can abut against the inner wall of the milk bowl (2).

8. The breast pump sealing mechanism according to claim 1, characterized in that: The flexible seal (111) includes a first flexible connecting protrusion on the milk bowl lid (11), which gradually slopes inward toward the center of the milk bowl lid (11).

9. The breast pump sealing mechanism according to claim 1, characterized in that: The outer edge of the milk bowl lid (11) is provided with an outwardly extending first handle flange (117), which facilitates the user to attach or detach the milk lid body (1) from the milk bowl (2) by gripping it.

10. A breast pump, characterized in that: The device includes a milk bowl (2) and a breast pump sealing mechanism as described in any one of claims 1 to 9. The milk bowl (2) is provided with a connecting flange (21), which is engaged in a connecting groove (13). The flexible seal (111) is elastically deformable, so that the outer wall of the milk bowl (2) abuts against the inner wall of the rigid seal (121), so that the outer wall of the connecting flange (21) abuts against the inner walls of the rigid seal (121) and the flexible seal (111) respectively.

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