Breast pump sealing structure and breast pump

Abstract

The utility model relates to the technical field of breast pumps, and provides a breast pump sealing structure and a breast pump, the breast pump sealing structure comprises a first assembly part and a second assembly part assembled with the first assembly part, and an assembly gap exists when the first assembly part and the second assembly part are assembled; the sealing structure further comprises an elastic sealing part arranged between the first assembly part and the second assembly part and used for sealing the first assembly part and the second assembly part. The elastic sealing piece comprises a guide sealing part. The elastic sealing part is arranged between the first assembly part and the second assembly part and comprises the guide sealing part, so that the assembly gap between the first assembly part and the second assembly part is sealed, and the influence of the assembly process on the sealing effect is prevented; the problems of liquid leakage or air leakage and the like of the first assembly part and the second assembly part are avoided, and the use safety and the performance stability of the breast pump are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of breast pumps, and particularly relates to a sealing structure of a breast pump. Background Art

[0002] As an important auxiliary tool for infant feeding, breast pumps play an indispensable role in the field of maternal and infant care. With the development of technology, the design and functions of breast pumps have been continuously optimized and improved to meet the needs of modern families for convenient, efficient, and safe use.

[0003] Existing breast pumps are assembled from multiple separate parts to form an integrated whole. During actual assembly and use, it is easy to generate assembly gaps between the parts, and the sealing effect between the gaps is poor, resulting in problems such as liquid leakage or air leakage in existing breast pumps.

[0004] Therefore, in order to further improve the sealing effect of the internal structure of breast pumps and ensure the safe use and stable performance of breast pumps, it is necessary to deeply improve and optimize the existing sealing structure. Summary of the Utility Model

[0005] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a breast pump sealing structure that enhances the sealing performance and meets the user's needs for efficient and safe use.

[0006] To solve the above problems, the utility model provides the following technical solutions:

[0007] A breast pump sealing structure includes a first fitting and a second fitting assembled with the first fitting. There is an assembly gap when the first fitting and the second fitting are assembled; the sealing structure further includes an elastic sealing member disposed between the first fitting and the second fitting; the elastic sealing member includes a guiding sealing portion; by providing an elastic sealing member between the first fitting and the second fitting, and the elastic sealing member includes a guiding sealing portion, the assembly gap between the first fitting and the second fitting is sealed, preventing the assembly process from affecting the sealing effect, avoiding problems such as liquid leakage or air leakage between the first fitting and the second fitting, and ensuring the safe use and stable performance of the breast pump.

[0008] In the above embodiment of a breast pump sealing structure, when the first fitting and the second fitting are not assembled, the guiding sealing portion is inclined as a whole towards the moving direction of the first fitting during assembly or the moving direction during disassembly; the purpose of setting this structure is to enable the guiding sealing portion to more easily follow the movement of the first fitting and be caught in the assembly gap between the first fitting and the second fitting when the first fitting is assembled into the second fitting.

[0009] In the above-mentioned embodiment of a breast pump sealing structure, the elastic seal is connected to the second fitting. The purpose of the connection is to enable the elastic seal to seal the assembly gap along with the first fitting among the above three, avoiding installing the elastic seal as a separate component.

[0010] In the above-mentioned embodiment of a breast pump sealing structure, the elastic seal is integrally formed with the second fitting. In some other embodiments, the purpose of designing the elastic sealing structure to be integrally formed with the above three second fittings is to simplify the processing and installation procedures during the production of the breast pump and improve the processing efficiency of the breast pump.

[0011] In the above-mentioned embodiment of a breast pump sealing structure, the elastic seal is detachably installed on the second fitting and matches the first fitting. The purpose is to enable, when designing some breast pump products that require the breast pump sealing structure to be taken out, to meet the user's operations of taking out the breast pump sealing structure for cleaning, replacement, maintenance, etc., and improve convenience.

[0012] In the above-mentioned embodiment of a breast pump sealing structure, the guiding seal portion includes a first side and a second side. The first side forms a first angle with the second fitting, and the second side forms a second angle with the second fitting;

[0013] Wherein, the first angle faces the moving direction of the first fitting during assembly, and the second angle faces the moving direction of the first fitting when disengaging from the assembly;

[0014] The first angle is an obtuse angle;

[0015] When the first side abuts against the side wall of the second fitting and deforms, the angle of the first angle increases, and the second side deforms along with the deformation of the first side, causing the angle of the second angle to decrease. When the elastic seal completes the assembly of the second fitting along with the first fitting, the angles of the first angle and the second angle both stop changing. At this time, the assembly gap between the first fitting and the second fitting is sealed. The first angle is an obtuse angle, and the second angle is a right angle.

[0016] In the above-mentioned embodiment of a breast pump sealing structure, the angle of the second angle is less than and / or equal to the angle of the first angle; setting this structure can make the structure of the guiding seal portion more adaptable to the structure between the installed first fitting and / or second fitting, so as to design breast pump products with different structural guiding seal portions to meet different usage requirements and usage scenarios of users.

[0017] In the above-mentioned embodiment of the milk pump sealing structure, the cross-section of the guiding and sealing portion is triangular, and the angle of the second included angle is less than or equal to 90 degrees; by using the different inclination angle structures of the first included angle and the second included angle, the extrusion force after the assembly of the first fitting and the second fitting is increased, the deformation amount is increased, and the detachment of the first fitting can be effectively avoided.

[0018] In the above-mentioned embodiment of the milk pump sealing structure, when the first fitting and the second fitting are assembled, the guiding and sealing portion is inclined towards the moving direction of the first fitting during assembly; the first side forms an extending surface, and the second side forms a compression surface, so as to enable the guiding and sealing portion to form an elastic acting force for extruding the first fitting, which is beneficial to the sealing effect of the elastic seal. At the same time, when disassembling the first fitting, more force is required, which is more conducive to avoiding the detachment of the first fitting.

[0019] In the above-mentioned embodiment of the milk pump sealing structure, the cross-section of the first side and / or the second side is arc-shaped or a straight line segment; by using the different inclination angle structures of the first included angle and the second included angle, the cross-section of the first side and / or the second side is arc-shaped or a straight line segment, further increasing the extrusion force after the assembly of the first fitting and the second fitting, increasing the deformation amount, and effectively avoiding the detachment of the first fitting.

[0020] In the above-mentioned embodiment of the milk pump sealing structure, the first side and the second side are connected and form an acute angle therebetween, or the first side and the second side are connected by a third side, and a third side is provided between the first side and the second side. By setting the third side to connect the first side and the second side, the overall guiding and sealing portion fits more closely to the inner wall of the second fitting.

[0021] This embodiment provides a milk pump using the milk pump sealing structure on a milk bowl and a milk bowl cover, including:

[0022] A sucking assembly for sucking milk from the user's breast;

[0023] A main body assembly including an air pump for providing negative pressure to the sucking assembly;

[0024] A milk storage container for storing the milk sucked out from the sucking assembly, the milk storage container including a milk bowl and a milk bowl cover detachably installed on the milk bowl;

[0025] The milk pump further includes the sealing structure according to any one of the above-mentioned embodiments, the first fitting is one of the milk bowl and the milk bowl cover, and the second fitting is the other of the milk bowl and the milk bowl cover.

[0026] In the above-described embodiment of a breast pump, the elastic seal is installed on the circumferential side of the milk bowl or the milk bowl cover and is located at the connection where the milk bowl and the milk bowl cover are close to each other.

[0027] This embodiment also provides a breast pump using a breast pump sealing structure on a milk bowl and a breast shield, including:

[0028] A sucking assembly for sucking milk from the user's breast, the sucking assembly including a breast shield;

[0029] A main body assembly including an air pump for providing negative pressure to the sucking assembly;

[0030] A milk storage container for storing the milk sucked out from the sucking assembly, the milk storage container including a milk bowl;

[0031] The breast pump further includes the sealing structure as described in any one of the above embodiments, the first fitting being one of the milk bowl and the breast shield, and the second fitting being the other of the milk bowl and the breast shield.

[0032] In the above-described embodiment of a breast pump, the elastic seal is installed on the circumferential side of the milk bowl or the breast shield and is located at the connection where the milk bowl and the breast shield are close to each other.

[0033] This embodiment also provides a breast pump using a breast pump sealing structure on a support frame and a milk sucking channel, including:

[0034] A sucking assembly for sucking milk from the user's breast, the sucking assembly including a breast shield, a milk sucking channel, and a support frame communicating with the milk sucking channel;

[0035] A main body assembly including an air pump for providing negative pressure to the sucking assembly and a backflow prevention barrier;

[0036] A milk storage container for storing the milk sucked out by the sucking assembly;

[0037] The breast pump further includes the sealing structure as described in any one of the above embodiments; the first fitting is one of the support frame and the backflow prevention barrier, and the second fitting is the other of the support frame and the backflow prevention barrier.

[0038] In the above-described embodiment of a breast pump, the elastic seal is installed on the circumferential side of the support frame or the backflow prevention barrier and is located at the connection where the support frame and the backflow prevention barrier are close to each other.

[0039] The beneficial effects of the present utility model are as follows: By providing an elastic seal between the first fitting and the second fitting, and the elastic seal includes a guiding seal portion, it realizes the sealing of the assembly gap between the first fitting and the second fitting, prevents the sealing effect from being affected by the assembly process, avoids problems such as liquid leakage or air leakage between the first fitting and the second fitting, and ensures the safe use and stable performance of the breast pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a cross-sectional view of one embodiment of a breast pump of the present utility model;

[0041] Figure 2 For Figure 1 an enlarged schematic view of the position H in

[0042] Figure 3 For Figure 1 an enlarged schematic view of the position I in

[0043] Figure 4 It is a cross-sectional view of another embodiment of a breast pump of the present utility model;

[0044] Figure 5 For Figure 4 an enlarged schematic view of the position G in

[0045] Figure 6 It is an unassembled schematic view of one embodiment of a sealing structure of the present utility model;

[0046] Figure 7 For Figure 6 a schematic view of a sealing structure after being assembled in

[0047] Figure 8 It is a schematic view of the structure of other embodiments of a sealing structure of the present utility model;

[0048] Figure 9 It is a schematic view of the structure of other embodiments of a sealing structure of the present utility model;

[0049] Figure 10 It is a schematic view of the structure of other embodiments of a sealing structure of the present utility model.

[0050] REFERENCE MARKS:

[0051] 100, sealing structure; 110, first fitting; 111, second fitting; 10, assembly gap; 13a, relief channel; 21a, milk suction channel; 300, breast pump; 310, suction assembly; 321, air pump; 322, processor; 313, main unit assembly; V1, moving direction when the first fitting is assembled into the second fitting; V2, moving direction when the first fitting is detached from the second fitting;

[0052] 112, Elastic seal; 121, Guide seal part; 212, Milk bowl; 213, Breast shield; 200, Milk storage container; 141, First side; 142, Second side; 143, Third side; 122, Extension part; α1, First included angle; α2, Second included angle;

[0053] 112, Elastic seal; 221, Guide seal part; 311, Support frame; 312, Anti-backflow barrier; 200, Milk storage container; 241, First side; 242, Second side; 243, Third side; 222, Extension part; α3, First included angle; α4, Second included angle;

[0054] 412, Elastic seal; 421, Guide seal part; 400, Milk storage container; 411, Milk bowl cover; 412, Milk bowl; 441, First side; 442, Second side; α5, First included angle; α6, Second included angle; 431, Limiting part;

[0055] 512, Elastic seal; 521, Guide seal part; 541, First side; 542, Second side; α7, First included angle; α8, Second included angle;

[0056] 612, Elastic seal; 621, Guide seal part; 641, First side; 642, Second side; α9, First included angle; α10, Second included angle;

[0057] 712, Elastic seal; 721, Guide seal part; 741, First side; 742, Second side; 743, Third side; α11, First included angle; α12, Second included angle;

[0058] 812, Elastic seal; 821, Guide seal part; 841, First side; 842, Second side; 843, Third side; α13, First included angle; α14, Second included angle. Detailed implementation manners

[0059] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0060] In addition, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality of" means two or more, unless otherwise specifically defined.

[0061] The present utility model provides a breast pump 300. Please refer to Figure 1 as shown, which is integrated into a whole breast pump 300 by assembling a plurality of separate components. The components of the breast pump 300 include a suction assembly 310, a main unit assembly 313, and a milk storage container 200. Among them, the suction assembly 310 is used to suck milk from the user's breast. The suction assembly 310 includes a breast shield 213, a suction channel 21a, and a support frame 311 communicating with the suction channel 21a. The main unit assembly 313 includes an air pump 321 for providing negative pressure for the suction assembly 310, a processor 322 for controlling the operation of the air pump 321, and a backflow prevention barrier 312. The milk storage container 200 is used to store the milk sucked out from the suction assembly 310.

[0062] During the assembly process of the utility model breast pump 300, there will be assembly gaps when assembling each component. In order to avoid problems such as liquid leakage or air leakage and ensure the use safety and stable performance of the breast pump, it is necessary to seal the assembly gaps of each component.

[0063] As Figures 1-3 shown, this is an embodiment of the utility model breast pump 300. The milk storage container 200 is assembled to the suction assembly 310, and the suction assembly 310 is assembled to the main unit assembly 313. To achieve the seal between the milk bowl 212 and the breast shield 213, and the seal between the support frame 311 and the backflow prevention barrier 312. This embodiment of the breast pump 300 further includes an elastic seal 112 for sealing the assembly gap 10.

[0064] Please refer to Figure 2As shown, an elastic seal 112 is provided between the milk bowl 212 and the breast shield 213. Specifically, after the milk bowl 212 and the breast shield 213 are assembled, there is an assembly gap 10 between the milk bowl 212 and the breast shield 213, and the elastic seal 112 is disposed within the assembly gap 10 between the milk bowl 212 and the breast shield 213. The elastic seal 112 seals the assembly gap 10 between the milk bowl 212 and the breast shield 213, that is, ensures the sealing effect between the milk bowl 212 and the breast shield 213, thereby avoiding problems such as liquid leakage or air leakage between the milk bowl 212 and the breast shield 213. Specifically, the elastic seal 112 includes a guiding and sealing portion 121. The guiding and sealing portion 121 is located between the milk bowl 212 and the breast shield 213. The guiding and sealing portion 121 includes a first side 141 and a second side 142. The first side 141 forms a first included angle α1 with the breast shield 213, and the second side 142 forms a second included angle α2 with the side of the breast shield 213. And the first included angle α1 faces the moving direction when the milk bowl 212 is assembled into the breast shield 213, and the second included angle α2 faces the moving direction when the milk bowl 212 is detached from the breast shield 213; when the elastic seal 112 seals the assembly gap 10 between the milk bowl 212 and the breast shield 213, the first side 141 is in contact with and compressed by the inclined inner wall of the breast shield 213, and the second side 142 abuts against and is compressed by another vertical inner wall of the breast shield 213. At this time, the guiding and sealing portion 121 will deform with the assembly of the milk bowl 212 to the breast shield 213, that is: the first side 141 abuts against the side wall of the breast shield 213 and deforms, so that the angle of the first included angle α1 increases, and the second side 142 deforms with the deformation of the first side 141, so that the angle of the second included angle α2 decreases. When the elastic seal 112 is assembled with the milk bowl 212 to the breast shield 213, the angles of the first included angle α1 and the second included angle α2 both stop changing. At this time, the assembly gap 10 between the milk bowl 212 and the breast shield 213 is sealed. The first included angle α1 is an obtuse angle, the second included angle α2 is a right angle, and a third side 143 is provided between the first side 141 and the second side 142. By providing the third side 143 to connect the first side 141 and the second side 142, the guiding and sealing portion 121 can be made to fit more closely with the inner wall of the breast shield 213 as a whole.

[0065] In this embodiment, the elastic seal 112 is integrally formed with the milk bowl 212. Of course, in other embodiments of the present utility model, the elastic seal 112 can be provided on a detachable separate connecting member and detachably connected to the milk bowl 212 or the breast shield 213.

[0066] As Figure 3As shown, in this embodiment, an elastic seal 112 is also provided between the support frame 311 and the anti-backflow barrier 312 to seal the assembly gap 10 between the support frame 311 and the anti-backflow barrier 312. In this embodiment, the elastic seal 112 is connected to the support frame 311 and seals the assembly gap 10 between the support frame 311 and the anti-backflow barrier 312 during the process of the support frame 311 assembling and supporting the anti-backflow barrier 312, that is, to ensure the sealing effect between the support frame 311 and the anti-backflow barrier 312, thereby avoiding problems such as liquid leakage or air leakage between the support frame 311 and the anti-backflow barrier 312. Specifically, the first included angle α3 faces the moving direction when the support frame 311 is assembled into the anti-backflow barrier 312, and the second included angle α4 faces the moving direction when the support frame 311 is disassembled from the anti-backflow barrier 312. When the elastic seal 112 seals the assembly gap 10 between the support frame 311 and the anti-backflow barrier 312, the first side 241 is spaced from the inclined inner wall of the anti-backflow barrier 312, and the second side 242 abuts against and is compressed by the other vertical inner wall of the anti-backflow barrier 312. At this time, the guiding and sealing portion 221 will deform with the assembly of the support frame 311 to the anti-backflow barrier 312, that is, the first side 241 abuts against the side wall of the anti-backflow barrier 312 and deforms, so that the angle of the first included angle α3 increases, and the second side 242 deforms with the deformation of the first side 241, so that the angle of the second included angle α4 decreases. When the elastic seal 112 is assembled with the support frame 311 and the anti-backflow barrier 312, the angles of the first included angle α3 and the second included angle α4 both stop changing. At this time, the assembly gap 10 between the support frame 311 and the anti-backflow barrier 312 is sealed. The first included angle α3 is an obtuse angle, the second included angle α4 is a right angle, and a third side 243 is provided between the first side 241 and the second side 242. The third side 243 is set to be arc-shaped. By providing the third side 243 to connect the first side 241 and the second side 242, the guiding and sealing portion 221 can be made to fit more closely to the inner wall of the milk suction shield 213 as a whole.

[0067] In this embodiment, elastic seals 112 are provided both between the milk bowl and the milk suction shield and between the support frame and the anti-backflow barrier. It can be understood that in other embodiments of the present invention, an elastic seal may be provided only between the milk bowl and the milk suction shield, or only between the support frame and the anti-backflow barrier. Of course, the breast pump of the present invention may also be provided with elastic seals between other fittings.

[0068] The present invention provides elastic seals between different fittings without limitation.

[0069] Optionally, the anti-backflow barrier 312 in the above embodiments can be set as a suction bowl or a suction diaphragm; the suction bowl is an important part of the breast pump 300, and its main function is to generate negative pressure to assist in milk suction; at the same time, the suction diaphragm is a diaphragm located inside the breast pump 300, and it usually works together with the air pump 321 to make the diaphragm deform through the negative pressure generated by the pump, thereby generating suction force at the milk suction part of the breast pump 300.

[0070] As Figure 4 shown, another embodiment of the breast pump provided by the present invention is shown. The breast pump includes a milk storage container 400. The milk storage container 400 includes a milk bowl 412 and a milk bowl cover 411 detachably installed with the milk bowl 412. An elastic seal 402 is arranged between the milk bowl 412 and the milk bowl cover 411 to seal the assembly gap 40 between the milk bowl 412 and the milk bowl cover 411; in this embodiment, the elastic seal 402 is connected to the milk bowl cover 411 and seals the assembly gap 10 between the milk bowl 412 and the milk bowl cover 411 during the process of the milk bowl cover 411 covering the milk bowl 412. Specifically, the first side 441 forms a first included angle α5 with one side wall of the milk bowl cover 411, and the second side 442 forms a second included angle α6 with the straight line of the other side wall of the milk bowl cover 411. The first included angle α5 faces the moving direction when the milk bowl 412 is assembled into the milk bowl cover 411, and the second included angle α6 faces the moving direction when the milk bowl 412 is disassembled from the milk bowl cover 411; when the elastic seal 402 seals the assembly gap 10 between the milk bowl 412 and the milk bowl cover 411, the first side 441 abuts against the vertical inner wall of the milk bowl 412 and is compressed by mutual extrusion, and the second side 442 is compressed by force as the first side 441 deforms. At this time, the guiding seal part 421 will deform with the assembly process of the milk bowl 412 and the milk bowl cover 411. The first side 441 abuts against the side wall of the milk bowl 412 and deforms, so that the angle of the first included angle α5 increases, and the second side 442 deforms as the first side 441 deforms, so that the angle of the second included angle α6 decreases. When the elastic seal 402 is assembled with the milk bowl 412 and the milk bowl cover 411, the angles of the first included angle α5 and the second included angle α6 both stop changing. At this time, the assembly gap 10 between the milk bowl 412 and the milk bowl cover 411 is sealed. The first included angle α5 is an obtuse angle, the second included angle α6 is a right angle, and a third side 443 is arranged between the first side 441 and the second side 442. By arranging the third side 443 to connect the first side 441 and the second side 442, the guiding seal part 421 can be more closely attached to the inner wall of the milk bowl 412 as a whole.

[0071] In the solutions of the above three different embodiments, the elastic seal is connected to the milk bowl cover 411, the breast shield 213, and the support frame 311 respectively. The purpose of the connection is to enable the elastic seal to seal the assembly gap along with the first fitting of one of the above three components, avoiding installing the elastic seal as a separate component. In some embodiments, optionally, the elastic seal and the above three fittings are detachably connected, aiming to meet the user's needs for cleaning, replacement, maintenance, etc. when removing the suction pump sealing structure in the design of some suction pump products that require the removal of the suction pump sealing structure, thus enhancing convenience. In other embodiments, the purpose of designing the elastic sealing structure to be integrally formed with the above three second fittings is to simplify the processing and installation procedures during the production of the suction pump and improve the processing efficiency of the suction pump.

[0072] It can be understood that the elastic seal is made of an elastic material such as silicone, and the milk bowl cover is made of a relatively hard material such as PP or ABS. PP is a transparent plastic. In this embodiment, the elastic seal of different materials and the above three fittings can be integrally formed, or the elastic seal can be sleeved on the above three fittings. By designing two different assembly methods, the assembly connection between the elastic seal and the fittings can be realized, which can be applied to different structures of the suction pump to meet various application scenarios of the suction pump.

[0073] Please refer to Figures 6-10 As shown, there are various different structures of the sealing structure of the present invention. The sealing structures of different structures can be implemented in suction pumps of different structures to seal different fittings of the suction pump. In the present invention, the sealing structure includes a first fitting 110, a second fitting 111, and an elastic seal 512 disposed between the first fitting 110 and the second fitting 111. When the first fitting 110 and the second fitting 111 are assembled, there is an assembly gap 10 between them, and the elastic seal 512 is used to seal the assembly gap to make the first fitting 110 and the second fitting 111 sealed. It can be understood that the first fitting 110 can be one of the milk bowls 212, 412, the anti-backflow barrier 312, the milk bowl cover 411, the breast shield 213, the anti-backflow barrier 312, and the support frame 311 of the suction pump, and the second fitting is the other one of the milk bowls 212, 412, the anti-backflow barrier 312, the milk bowl cover 411, the breast shield 213, the anti-backflow barrier 312, and the support frame 311 of the suction pump that cooperates with the first fitting.

[0074] Please refer to Figures 6-7As shown, in an embodiment of the sealing structure of the present utility model, the elastic sealing member 512 includes a guiding and sealing portion 521. The guiding and sealing portion 521 includes a first side 541 and a second side 542. The first side 541 forms a first included angle α7 with the second fitting 111, and the second side 542 forms a second included angle α8 with the second fitting 111. Among them, the first included angle α7 faces the moving direction V1 of the first fitting 110 during assembly, and the second included angle α8 faces the moving direction V2 of the first fitting 110 during disassembly. In this embodiment, the first direction V1 is defined as the moving direction of the first fitting 110 during assembly, and the second direction V2 is defined as the moving direction of the first fitting 110 during disassembly. The first included angle α7 is an obtuse angle, and the second included angle α8 is a right angle. When the first fitting 110 and the second fitting 111 are not assembled, the entire guiding and sealing portion 521 is inclined towards the moving direction V1 or the moving direction V2 when the first fitting 110 is assembled into the second fitting 111. The purpose of setting this structure is that when the first fitting 110 is assembled into the second fitting 111, the guiding and sealing portion 521 can more easily follow the movement of the first fitting 110 and be clamped into the assembly gap 10 between the first fitting 110 and the second fitting 111. And when the first fitting and the second fitting are assembled, the guiding and sealing portion 521 is inclined towards the moving direction V1 of the first fitting 110 during assembly. The first side 541 of the guiding and sealing portion 521 forms an extended surface, and the second side 542 forms a compressed surface. Moreover, during the process of assembling the first fitting to the second fitting, the angle of the first included angle α7 increases, and the second included angle α8 decreases. Therefore, the guiding and sealing portion forms an elastic acting force that presses the first fitting, and at the same time, the first fitting generates a plastic deformation force on the guiding and sealing portion. Through this plastic deformation force, the guiding and sealing portion deforms, which is beneficial to the sealing effect of the elastic sealing member. At the same time, when disassembling the first fitting, more force is required, which is more conducive to preventing the first fitting from falling off.

[0075] In this embodiment, the cross-section of the guiding and sealing portion 521 is triangular and is a right triangle. The first included angle α7 is an obtuse angle, the second included angle α8 is 90 degrees, and the first side 541 and the second side 542 are connected and form an acute angle therebetween. Of course, in other embodiments of the present utility model, the second included angle α8 is not limited to a right angle and can be less than 90 degrees; it can also be less than and / or equal to the angle of the first included angle α7. The purpose of setting this structure can make the structure of the guiding and sealing portion more adaptable to the structure between the installed first fitting and / or the second fitting, so that breast pump products with different structures of the guiding and sealing portion can be designed to meet different usage requirements and usage scenarios of users.

[0076] In other embodiments of the present utility model, such as Figure 8As shown, the angle of the first included angle α9 of the guiding and sealing part 621 is greater than 90°, the angle of the second included angle α10 is equal to the angle of the first included angle α9, and the first side 641 and the second side 642 are connected and form an acute angle therebetween.

[0077] In other embodiments of the present utility model, such as Figure 9 as described, a third side 743 may also be provided between the first side 741 and the second side 742, and the connection between the first side 741 and the second side 742 is formed through the third side 743.

[0078] In other embodiments of the present utility model, such as Figure 10 as described, the first side 841 and the second side 842 are arc-shaped, and the cross-section of the guiding and sealing part 821 is crescent-shaped. The angle of the first included angle α13 is greater than 90°, and the angle of the second included angle α14 is less than 90.

[0079] The sealing effect of the elastic seal of the present utility model is better. The guiding and sealing part utilizes the different inclination angle structures of the first included angle and the second included angle, so that the extrusion force after the assembly of the first fitting and the second fitting is increased, the deformation amount is increased, and the detachment of the first fitting can be effectively avoided.

[0080] In summary, the present utility model provides a milk pump sealing structure and a milk pump. By providing an elastic seal between the first fitting and the second fitting, and the elastic seal includes a guiding and sealing part, the assembly gap between the first fitting and the second fitting is sealed, the influence of the assembly process on the sealing effect is prevented, the problems of liquid leakage or air leakage between the first fitting and the second fitting are avoided, and the use safety and performance stability of the milk pump are ensured.

[0081] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present application.

Claims

1. A breast pump sealing structure, comprising a first assembly part and a second assembly part assembled with the first assembly part, wherein an assembly gap exists between the first assembly part and the second assembly part during assembly; characterized in that: The sealing structure further comprises an elastic sealing member disposed between the first assembly member and the second assembly member; the elastic sealing member comprises a guide sealing portion.

2. The breast pump sealing structure according to claim 1, characterized in that: When the first assembly member and the second assembly member are not assembled, the guide sealing portion is tilted as a whole toward a moving direction of the first assembly member during assembly or a moving direction of the first assembly member during disassembly.

3. The breast pump sealing structure according to claim 1, characterized in that: The elastic sealing member is connected to the second assembly member.

4. The breast pump sealing structure according to claim 3, characterized in that: The elastic sealing component and the second assembly component are integrally formed.

5. The breast pump sealing structure according to claim 3, characterized in that: The elastic sealing component is detachably mounted on the second assembly component and matches the first assembly component.

6. The breast pump sealing structure according to claim 2, characterized in that: The guide sealing portion comprises a first side edge and a second side edge, the first side edge and the second assembly part form a first angle, and the second side edge and the second assembly part form a second angle; Wherein, the first angle is toward the moving direction of the first assembly part during assembly, and the second angle is toward the moving direction of the first assembly part during disassembly; The first angle is an obtuse angle.

7. The breast pump sealing structure according to claim 6, characterized in that: The second angle is smaller than and / or equal to the first angle.

8. The breast pump sealing structure according to claim 6, characterized in that: The cross section of the guide sealing portion is triangular, and the angle of the second angle is less than or equal to 90 degrees.

9. The breast pump sealing structure according to claim 6, characterized in that: When the first assembly part and the second assembly part are assembled, the guide sealing part is inclined toward the moving direction of the first assembly part during assembly; the first side forms an extension surface, and the second side forms a compression surface, so that the guide sealing part forms an elastic force to squeeze the first assembly part.

10. The breast pump sealing structure according to claim 6, characterized in that: The cross section of the first side and / or the second side is an arc or a straight line segment.

11. The breast pump sealing structure according to claim 6, characterized in that: The first side edge is connected to the second side edge and forms an acute angle therebetween, or the first side edge is connected to the second side edge via a third side edge.

12. A breast pump, comprising: an extraction assembly for extracting milk from a user's breast; A host assembly, including an air pump for providing negative pressure to the suction assembly; A milk storage container, used for storing milk sucked out from the suction assembly, the milk storage container comprising a milk bowl and a milk bowl cover detachably mounted to the milk bowl; It is characterized in that: the breast pump also includes a sealing structure as described in any one of claims 1-11, the first assembly part is one of the milk bowl and the milk bowl cover, and the second assembly part is the other of the milk bowl and the milk bowl cover.

13. The breast pump according to claim 12, characterized in that: The elastic sealing member is installed on the peripheral side of the milk bowl or the milk bowl cover and is located at the connection between the milk bowl and the milk bowl cover where they are close to each other.

14. A breast pump, comprising: an extraction assembly for extracting milk from a user's breast, the extraction assembly comprising a breast shield; A host assembly, including an air pump for providing negative pressure to the suction assembly; A milk storage container, used for storing milk sucked out from the suction assembly, the milk storage container comprising a milk bowl; It is characterized in that the breast pump also includes the sealing structure according to any one of claims 1 to 11, the first assembly part is one of the milk bowl and the breast shield, and the second assembly part is the other of the milk bowl and the breast shield.

15. The breast pump according to claim 14, characterized in that: The elastic sealing member is installed on the peripheral side of the milk bowl or the breast shield and is located at the connection between the milk bowl and the breast shield where they are close to each other.

16. A breast pump, comprising: A suction assembly, used for sucking milk from a user's breast, the suction assembly comprising a breast shield, a milk suction channel and a support frame connected to the milk suction channel; A host assembly, including an air pump and an anti-backflow barrier for providing negative pressure to the suction assembly; A milk storage container, used for storing the milk sucked out by the suction assembly; It is characterized in that: the breast pump also includes a sealing structure as described in any one of claims 1-11; the first assembly part is one of the support frame and the anti-backflow barrier, and the second assembly part is the other of the support frame and the anti-backflow barrier.

17. The breast pump according to claim 16, characterized in that: The elastic sealing member is installed on the peripheral side of the support frame or the anti-backflow barrier and is located at the connection where the support frame and the anti-backflow barrier are close to each other.

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