Diaphragm dismounting structure and breast pump

Abstract

The utility model discloses a diaphragm dismounting structure and breast pump, diaphragm dismounting structure includes the diaphragm that is used for the gas-liquid separation of breast pump, shell, cover body and cover body half dismounting structure, in the technical scheme of this utility model, the cover body can be dismantled completely from the shell, also can be connected to the shell in the state of covering or half dismounting, and the cover body is connected to the shell in the state of covering or half dismounting. In practical application, when the cover body is in a covering state, the cover body and the shell seal and clamp the diaphragm, so that the isolation cavity is divided into a closed liquid side and a closed gas side, and milk is effectively isolated; and when the user needs to only take down the diaphragm but not completely detach the cover body, the cover body can be set to be in a semi-detached state, and the cover body is still connected with the shell but the isolation cavity is exposed, so that the user can take out the diaphragm conveniently.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of maternal and infant products, especially to a diaphragm dismounting structure and breast pump. BACKGROUND

[0002] Women will secrete a lot of milk during lactation, and to avoid the accumulation of excess milk in the mammary glands to form a mass or produce inflammation, it is necessary to use a breast pump to squeeze out the accumulated milk in the mammary glands and save the milk, which can dredge the mammary glands on the one hand and save the milk for breastfeeding on the other hand.

[0003] The diaphragm is provided in the breast pump, and when the shroud of the breast pump is attached to the human skin, a closed space is formed inside. At this time, the diaphragm can be deformed under the action of the negative pressure driving system, so that a negative pressure is formed in the closed space inside the breast pump, thereby facilitating the pumping of the user's milk, and the diaphragm can isolate the electronic components and milk inside the breast pump, thereby ensuring the reliability of the equipment.

[0004] The existing breast pump needs to be regularly cleaned to avoid the growth of bacteria on the milk stains on the diaphragm, thereby affecting the hygiene of the milk. The existing diaphragm is detachably connected by a cover and a shell to clamp the diaphragm in the openable isolation cavity. When the user dismounts the diaphragm, the cover needs to be completely dismounted to dismount the diaphragm, which is relatively cumbersome. UTILITY MODEL CONTENTS

[0005] The main purpose of the utility model is to provide a diaphragm dismounting structure and breast pump, which aims to facilitate user use.

[0006] To achieve the above-mentioned purpose, the utility model provides a diaphragm dismounting structure applied to a breast pump, which comprises:

[0007] A diaphragm for gas-liquid separation of the breast pump;

[0008] A shell comprising an opening and an isolation cavity (101) recessed inward along the opening;

[0009] A cover detachably mounted on the shell, the cover being provided with a vent communicating with the isolation cavity, the cover being used to press and seal the diaphragm at the opening, the diaphragm comprising a liquid side in contact with milk and a gas side not in contact with milk;

[0010] A cover half-dismounting structure, the cover being connected to the shell through the cover half-dismounting structure, and the cover comprising at least a first state and a second state:

[0011] In the first state, the cover is movably connected to the shell, and the cover can realize two states of sealing the opening and opening the opening;

[0012] the cover is separated from the shell in the second state.

[0013] In some embodiments of the present application, the cover half disassembly structure comprises a first disassembly part and a second disassembly part, the first disassembly part and the second disassembly part are connected to the outer periphery of the isolation cavity and the cover respectively, and the first disassembly part and the second disassembly part are detachably rotatably connected.

[0014] In some embodiments of the present application, the first disassembly part is provided with a rotating hole, and the hole wall of the rotating hole is provided with a avoiding opening;

[0015] The second disassembly part comprises a rotating shaft and a connecting structure, the connecting structure is protruded on the circumference of the cover, the side surface of the rotating shaft is connected with the connecting structure, the rotating shaft is rotatably installed and limited in the rotating hole, the shaft diameter of the rotating shaft is greater than the width of the avoiding opening in the radial direction of the rotating hole, the connecting structure is matched with the avoiding opening, and a space is arranged between the connecting structure and the wall surface of the avoiding opening in the circumferential direction of the rotating hole.

[0016] In some embodiments of the present application, the avoiding opening is provided on at least one side in the axial direction of the rotating hole, and a limiting notch is arranged on one side wall surface of the rotating hole in the circumferential direction, the connecting structure is located in the limiting notch in the state that the cover covers the opening, and the connecting structure is separated from the limiting notch in the first state that the cover is opened from the opening.

[0017] In some embodiments of the present application, the rotating shaft is in interference fit with the rotating hole.

[0018] In some embodiments of the present application, the cover and the shell are detachably connected relative to the other side of the rotatable connection.

[0019] In some embodiments of the present application, the shell is provided with a clamping part on one side relative to the first disassembly part, the cover is provided with a buckling part on one side relative to the second disassembly part, and the clamping part and the buckling part are connected to lock the cover in the covering state.

[0020] In some embodiments of the present application, the clamping part and the buckling part are provided with a plurality of clamping parts, the plurality of clamping parts are arranged at intervals along the outer periphery of the mounting cavity, the plurality of buckling parts are arranged at intervals along the circumference of the cover, and one clamping part is correspondingly clamped in one buckling part.

[0021] In some embodiments of the present application, the clamping part is a clamping convex, the buckling part is provided as a clasp, the clasp is provided with a clamping hole, and the clamping convex is clamped in the clamping hole.

[0022] In some embodiments of the utility model, the breast pump comprises:

[0023] The breast shield is attached to and seals the breast, and the breast shield is provided with a nipple passage;

[0024] The milk storage container is in liquid communication with the breast shield through the nipple passage;

[0025] The negative pressure driving system causes the diaphragm to vibrate, and the shell is integrally formed on the breast shield or detachably fixed on the breast shield, and the negative pressure driving system is in gas communication with the vent.

[0026] In some embodiments of the utility model, the breast pump comprises:

[0027] The breast shield is attached to and seals the breast;

[0028] The milk storage container is in liquid communication with the breast shield;

[0029] The negative pressure driving system causes the diaphragm to vibrate, and the shell is integrally formed on the breast shield or detachably fixed on the breast shield, and the negative pressure driving system is in gas communication with the vent.

[0030] In the technical scheme of the utility model, the cover can be completely detached from the shell, and when the cover is in the first state, it can be closed on the opening or semi-detachably connected to the opening. In actual application, when the cover is closed, the cover and the shell seal and clamp the diaphragm, so that the isolation cavity is divided into a closed liquid side and a gas side, effectively isolating the milk. When the user needs to remove only the diaphragm without completely detaching the cover, the cover can be semi-detachably connected to the opening, and the cover is still connected to the shell but the isolation cavity is exposed, so that the user can remove the diaphragm. This can improve the convenience of disassembly and assembly, and the risk of losing parts during disassembly and assembly is relatively low. Of course, the user can also completely detach the cover, depending on the specific situation. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can obtain other drawings from the structures shown in the drawings without creating any creative labor.

[0032] Fig. 1 The structure diagram of one embodiment of the breast pump provided by the utility model;

[0033] Fig. 2 The exploded view of one embodiment of the breast pump provided by the utility model;

[0034] Fig. 3 It is a structure schematic view of one embodiment of the diaphragm dismounting structure and breast pump shield in the utility model.

[0035] Fig. 4 It is a sectional view of one embodiment of the breast pump provided by the utility model.

[0036] Explanation of reference numerals:

[0037] 100, diaphragm dismounting structure; 101, isolation cavity; 1011, liquid side; 1012, gas side; 102, cover half dismounting structure; 10, shell; 11, first dismounting part; 111, rotating hole; 112, avoiding opening; 113, limiting gap; 114, limiting plate; 115, communicating opening; 116, opening; 12, clamping part; 20, cover; 21, second dismounting part; 211, rotating shaft; 212, connecting structure; 22, buckling part; 2211, clamping hole; 23, air vent; 1000, breast pump; 200, main body; 210, milk collection channel; 220, breast pump shield; 221, flexible flange; 222, connecting pipeline; 223, nipple channel; 240, milk storage container; 241, milk storage cavity; 250, negative pressure driving system; 260, one-way valve; 300, diaphragm; 400, cover.

[0038] The realization, functional features and advantages of the utility model will be further described with reference to the drawings in combination with embodiments. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0040] It should be noted that if the embodiments of the utility model involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between components in a certain specific posture, and if the specific posture changes, the directional indications also change accordingly.

[0041] In addition, if the description of "first", "second" and the like is involved in the embodiments of the utility model, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one feature. In addition, if "and / or" or "and / or" appears throughout the text, it means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.

[0042] Please refer to Figs. 1 to 4 The utility model proposes a diaphragm dismounting structure 100, apply to breast pump 1000, diaphragm dismounting structure 100 includes the diaphragm for the gas-liquid separation of breast pump 1000, shell 10, cover 20 and cover 20 half dismounting structure 102, wherein, shell 10 includes opening 116 and the isolation chamber 101 that recesses inwards along opening 116, cover 20 can be detached and installed in shell 10, cover 20 is set up with the vent 23 of communication with isolation chamber 101, cover 20 is used for tightly sealing in opening 116 with diaphragm, and diaphragm includes the liquid side 1011 of contacting milk and the gas side 1012 of not contacting milk, cover 20 is connected shell 10 through cover 20 half dismounting structure 102, and cover 20 at least includes first state and second state: cover 20 is in first state, cover 20 is movably connected on shell 10, and cover 20 can realize sealed opening 116 and the two kinds of states of opening from opening 116, cover 20 is in second state, cover 20 is separated from shell 10.

[0043] In the technical scheme of the utility model, the cover 20 can be completely detached from the shell 10, and when the cover 20 is in the first state, it can be closed on the opening 116 or half-dismounted and connected to the opening 116. In actual application, when the cover 20 is closed, the cover 20 and the shell 10 seal and clamp the diaphragm, so that the isolation chamber 101 is divided into airtight liquid side 1011 and gas side 1012, effectively isolating the milk. When the user needs to remove only the diaphragm without completely removing the cover 20, the cover 20 can be half-dismounted and connected to the opening 116, and the cover 20 is still connected to the shell 10 but the isolation chamber 101 is exposed, so that the user can take out the diaphragm. This can improve the convenience of dismounting, and the risk of losing parts during dismounting is relatively low. Of course, the user can also completely remove the cover 20, depending on the specific situation.

[0044] The above-mentioned diaphragm 300 can be used to separate the liquid side 1011 and the gas side 1012 of the isolation chamber 101. The vent 23 of the cover body 20 is used to communicate with the negative pressure drive system 250 of the breast pump 1000 host, so as to generate negative pressure in the isolation chamber 101 through the negative pressure drive system, thereby causing the diaphragm 300 to deform. The cover body 20 and the shell 10 can be connected by threaded connection, sliding connection, etc. In some embodiments of the present utility model, the shell 10 is provided with a threaded hole, and the cover body 20 is fixed to the shell 10 by a bolt, and the cover body 20 is rotatably connected to the bolt head of the bolt. In this way, when the bolt is tightened, the cover body 20 will not rotate, but can move away from the shell 10 together with the bolt head, so that the isolation chamber 101 is exposed.

[0045] Preferably, the semi-disassembly structure 102 of the cover 20 includes a first disassembly portion 11 and a second disassembly portion 21. The first disassembly portion 11 and the second disassembly portion 21 are connected to the outer periphery of the isolation chamber 101 and the cover 20, respectively. The first disassembly portion 11 and the second disassembly portion 21 are detachably and rotatably connected. The first disassembly portion 11 and the second disassembly portion 21 are interchangeable. That is, the first disassembly portion 11 can be connected to the outer periphery of the isolation chamber 101 and the second disassembly portion 21 can be connected to the cover 20, or the second disassembly portion 21 can be connected to the outer periphery of the isolation chamber 101 and the first disassembly portion 11 can be connected to the cover 20. The rotational connection between the first disassembly portion 11 and the second disassembly portion 21 allows the cover 20 to be easily installed and removed. This simplifies the disassembly process, allowing users to easily replace or clean the diaphragm of the breast pump 1000, thereby improving product maintenance efficiency. Furthermore, the design of the rotating connection allows the cover 20 to be firmly positioned on the housing 10, ensuring that the diaphragm is correctly compressed and sealed when the breast pump 1000 is in operation, thereby preventing milk leakage.

[0046] There are many specific implementations of the above-mentioned first disassembly and assembly part 11 and the second disassembly and assembly part 21. For example, the first disassembly and assembly part 11 is a rotating shaft, and the second disassembly and assembly part 21 is two rotating sleeves spaced apart. When the cover body 20 is installed to the shell body 10, one rotating sleeve is first aligned and assembled with one end of the rotating shaft, and then the other rotating sleeve is aligned and assembled with the other end of the rotating shaft.

[0047] Preferably, in some embodiments of the present invention, the first disassembly and assembly part 11 is provided with a rotating hole 111, and the hole wall of the rotating hole 111 is provided with an avoidance opening 112; the second disassembly and assembly part 21 includes a rotating shaft 211 and a connecting structure 212, the connecting structure 212 is protruded from the periphery of the cover body 20, the side of the rotating shaft 211 is connected to the connecting structure 212, the rotating shaft 211 is rotatably installed and limited in the rotating hole 111, the shaft diameter of the rotating shaft 211 is greater than the width of the avoidance opening 112 in the radial direction of the rotating hole 111, the connecting structure 212 cooperates with the avoidance opening 112, and a gap is provided between the connecting structure 212 and the avoidance opening 112 on the circumferential wall of the rotating hole 111.

[0048] Through the above scheme, the first disassembly part 11 and the second disassembly part 21 are positioned more accurately, so that the cover 20 is not easy to be dislocated. The shaft diameter of the rotating shaft 211 is greater than the width of the avoiding opening 112 in the radial direction of the rotating hole 111, so that the rotating shaft 211 can be prevented from being pulled out of the rotating hole 111, and the tightness and reliability of the connection are ensured. On the other hand, the design of the avoiding opening 112 helps to reduce the interference between the rotating shaft 211 and the hole wall during rotation, thereby reducing wear and prolonging the service life of the product.

[0049] Further, in some embodiments of the utility model, the avoiding opening 112 is arranged through at least one side in the axial direction of the rotating hole 111, and a limiting gap 113 is arranged on one side wall surface of the avoiding opening 112 in the circumferential direction of the rotating hole 111. In the state that the cover 20 covers the opening 116, the connecting structure 212 is located in the limiting gap 113. In the first state that the cover 20 is opened from the opening 116, the connecting structure 212 is separated from the limiting gap 113. In this way, when the cover 20 is assembled to the shell 10, the rotating shaft 211 can be aligned with the rotating hole 111, and the connecting structure 212 can be aligned with the avoiding opening 112, so that the rotating shaft 211 is inserted into the rotating hole 111 in the axial direction. After assembly, the limiting gap 113 is aligned with the connecting structure 212, which not only widens the rotating angle of the rotating shaft 211, but also, in the state that the cover 20 is closed, the connecting structure 212 is accommodated in the limiting gap 113, and the limiting gap 113 can limit the connecting structure 212 from moving in the axial direction together with the rotating shaft 211, so that the structure is more stable. Moreover, by arranging the avoiding opening 112 and the limiting gap 113 in the rotating hole 111, the complex mechanical structure is avoided, so that the overall design is simpler and more compact. This design not only reduces the manufacturing cost, but also reduces the number of mechanical parts that may fail, thereby improving the reliability and durability of the product.

[0050] Further, in some embodiments of the utility model, the rotating shaft 211 is in interference fit with the rotating hole 111. The interference fit between the rotating shaft 211 and the rotating hole 111 enhances the firmness of the connection, so that the structure is more durable during repeated disassembly and use. Moreover, the end of the connecting structure 212 that penetrates the avoiding opening 112 is in interference fit, the connecting structure 212 is aligned with the limiting gap 113 after assembly, and the connecting structure 212 can rotate together with the rotating shaft 211 in the limiting gap 113. In this way, after the connecting structure 212 is assembled in place, the connecting structure 212 is not easy to be pulled out by itself, and needs to be actively disassembled by the user to be removed, so that the user can control the half-disassembly state and the completely disassembled state of the cover 20.

[0051] In the above scheme, the diaphragm dismounting structure 100 can be tightly fitted with the shell 10 to clamp the diaphragm by the pressing force of other structures after being installed into the breast pump 1000. Preferably, in some embodiments of the utility model, the cover 20 and the shell 10 are detachably connected relative to the other side of the rotary connection. In this way, only the self-limiting action can realize stable sealing.

[0052] The detachable connection mode of the cover 20 and the shell 10 can be various, which can be fixed by screwing, or can be fixed by magnetic attraction, and preferably, in some embodiments of the utility model, the shell 10 is provided with a clamping portion 12 relative to one side of the first dismounting portion 11, and the cover 20 is provided with a buckling portion 22 relative to one side of the second dismounting portion 21, and the clamping portion 12 and the buckling portion 22 are connected to lock the cover 20 in the closed state. The cooperation of the clamping portion 12 and the buckling portion 22 enhances the connection stability between the cover 20 and the shell 10, and ensures that the cover 20 will not accidentally fall off during the working process of the breast pump 1000, thereby ensuring the safety and reliability during use. When using the breast pump 1000, the user can easily lock the cover 20 in the correct position, the operation mode is intuitive, and the user experience can be improved.

[0053] In order to further improve the stability, in some embodiments of the utility model, the clamping portion 12 and the buckling portion 22 are both provided with a plurality of clamping portions 12, a plurality of buckling portions 22 are arranged along the outer periphery of the mounting cavity, and a clamping portion 12 is correspondingly clamped in a buckling portion 22. Through the cooperation of the plurality of clamping portions 12 and the buckling portions 22, the connection stability between the cover 20 and the shell 10 is further enhanced, so that the breast pump 1000 is not easy to loosen during work, and the reliability of use is ensured. And the clamping portion 12 is arranged along the outer periphery of the mounting cavity, and the buckling portion 22 is arranged along the periphery of the cover 20, so that the force is uniformly distributed during connection, the local stress concentration is reduced, the durability of the overall structure is improved, and the sealing performance of the internal diaphragm can also be improved.

[0054] The above-mentioned clamping portion 12 and buckling portion 22 can be provided as a clamping hook and a clamping groove, or can be provided as other shaped structures, and preferably, in some embodiments of the utility model, the clamping portion 12 is a clamping convex, and the buckling portion 22 is provided as a clamping buckle, and the clamping buckle is provided with a clamping hole 2211, and the clamping convex is clamped in the clamping hole 2211. Through the cooperation of the clamping convex and the clamping hole 2211, the firm connection between the shell 10 and the cover 20 is realized, which can ensure the stability of the cover 20 and the shell 10 on the one hand, and also facilitates the user to disassemble and assemble.

[0055] The utility model discloses still propose a breast pump 1000, including the suction of the adhesion and the sealing breast's breast shield 220, and the breast shield 220 through its set nipple channel 223 liquid intercommunication's storage milk container 240, the negative pressure drive system 250 of causing diaphragm vibration and above-mentioned diaphragm dismounting structure 100. The specific structure of this diaphragm dismounting structure 100 refers to the above-mentioned embodiment, because the breast pump 1000 of the utility model adopts all the technical solutions of the above-mentioned embodiment, therefore at least has all the beneficial effects brought by the technical scheme of the above-mentioned embodiment, here will not repeat.

[0056] The specific position of the diaphragm dismounting structure 100 is flexible, and can be set according to actual conditions. In some embodiments of the utility model, the shell 10 is integrally formed on the breast shield 220 or detachably fixed on the breast shield 220, and the negative pressure drive system 250 is in gas communication with the air vent 23. In other embodiments of the utility model, the shell 10 is integrally formed on the storage milk container 240 or detachably fixed on the storage milk container 240, and the negative pressure system is in gas communication with the air vent 23.

[0057] Through the above scheme, the overall structure has high compactness, the diaphragm dismounting structure 100 does not interfere with other components at all, the working reliability of the breast pump 1000 is ensured, the connection between the components is reasonable, the functionality is ensured, and the convenience of user operation is considered. In the structure of the diaphragm 300 and the diaphragm dismounting structure 100, the gas side 1012 is in communication with the air vent 23. Such a layout allows air to enter and exit during the breast pumping process, helps to adjust the internal pressure, and at the same time avoids the overflow of milk.

[0058] In some embodiments of the utility model, the breast shield 220 includes a flexible flange 221 and a connecting pipeline 222, the nipple channel is formed in the connecting pipeline 222, one end of the connecting pipeline 222 is communicated to the middle part of the flexible flange, the shell 10 is at least partially provided as a flexible part, the flexible part is integrally connected with the flexible flange 221. In this way, when the air pressure between the diaphragm 300 and the shell 10 changes, the flexible part and the flexible flange 221 deform, causing a negative pressure to be formed inside the breast pump 1000. In this scheme, the diaphragm dismounting structure 100 and the breast shield 220 do not need to be provided with a communication hole, which reduces the process difficulty and processing complexity.

[0059] In some embodiments of the utility model, the connecting pipeline 222 is in one-way communication with the storage milk cavity 241 through a one-way valve 260. This avoids the waste caused by the backflow of milk or causes discomfort to the user.

[0060] The above are only exemplary embodiments of the present application, and do not limit the patent scope of the present application, and any equivalent structural transformation made by using the content of the present application specification and drawings, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A diaphragm disassembly and assembly structure, used in a breast pump, characterized in that: The diaphragm disassembly and assembly structure comprises: Diaphragm used to separate gas and liquid in breast pumps; a housing, the housing comprising an opening and an isolation cavity recessed inwardly along the opening; a cover body, the cover body being detachably mounted on the housing, the cover body being provided with a vent communicating with the isolation chamber, the cover body being used to compress and seal a diaphragm against the opening, the diaphragm including a liquid side in contact with milk and a gas side not in contact with milk; A semi-detachable cover structure, wherein the cover is connected to the housing via the semi-detachable cover structure, and the cover includes at least a first state and a second state: In the first state, the cover is movably connected to the housing, and the cover can be in two states: sealing the opening and opening from the opening; When the cover is in the second state, the cover is separated from the housing.

2. The diaphragm assembly and disassembly structure according to claim 1, characterized in that: The semi-disassembly structure of the cover includes a first disassembly portion and a second disassembly portion, wherein the first disassembly portion and the second disassembly portion are respectively connected to the periphery of the isolation cavity and the cover, and the first disassembly portion and the second disassembly portion are detachably rotatably connected.

3. The diaphragm assembly and disassembly structure according to claim 2, characterized in that: The first disassembly and assembly portion is provided with a rotation hole, and a hole wall of the rotation hole is provided with an avoidance opening; The second disassembly and assembly part includes a rotating shaft and a connecting structure. The connecting structure is protruded from the periphery of the cover body. The side of the rotating shaft is connected to the connecting structure. The rotating shaft is rotatably installed and limited in the rotating hole. The shaft diameter of the rotating shaft is larger than the width of the avoidance opening in the radial direction of the rotating hole. The connecting structure cooperates with the avoidance opening, and a gap is provided between the connecting structure and the avoidance opening on the circumferential wall of the rotating hole.

4. The diaphragm assembly and disassembly structure according to claim 3, characterized in that: The avoidance opening is provided through at least one side in the axial direction of the rotating hole, and a limiting notch is provided on one side wall surface of the avoidance opening in the circumferential direction of the rotating hole. When the cover body covers the opening, the connecting structure is located in the limiting notch. When the cover body is in the first state of being opened from the opening, the connecting structure is separated from the limiting notch.

5. The diaphragm assembly and disassembly structure according to claim 3, characterized in that: The rotating shaft is interference fit with the rotating hole.

6. The diaphragm assembly and disassembly structure according to any one of claims 2 to 5, characterized in that: The cover and the shell are detachably connected relative to the other side of the rotational connection.

7. The diaphragm assembly and disassembly structure according to claim 6, characterized in that: A clamping portion is provided on a side of the shell opposite to the first detachable portion, and a buckling portion is provided on a side of the cover body opposite to the second detachable portion. The clamping portion is connected to the buckling portion to lock the cover body in a closed state.

8. The diaphragm assembly and disassembly structure according to claim 7, characterized in that: There are multiple clamping parts and buckling parts, multiple clamping parts are arranged at intervals along the outer periphery of the isolation cavity, and multiple buckling parts are arranged at intervals along the periphery of the cover body, and one clamping part is correspondingly clamped to one buckling part.

9. The diaphragm assembly and disassembly structure according to claim 7, wherein: The clamping portion is a clamping protrusion, the buckle portion is configured as a buckle, the buckle is provided with a clamping hole, and the clamping protrusion is clamped in the clamping hole.

10. A breast pump comprising the diaphragm disassembly and assembly structure according to any one of claims 1 to 9, characterized in that: The breast pump comprises: A breast shield that fits and seals the breast, the breast shield being provided with a nipple passage; a milk storage container in fluid communication with the breast shield via the nipple passage; A negative pressure drive system causes the diaphragm to vibrate, the shell is integrally formed with the breast shield or detachably fixed to the breast shield, and the gas of the negative pressure drive system is connected to the vent.

11. A breast pump comprising the diaphragm disassembly and assembly structure according to any one of claims 1 to 9, characterized in that: The breast pump comprises: breast shields that fit snugly and seal tightly against the breast; a milk storage container in fluid communication with the breast shield; A negative pressure drive system causes the diaphragm to vibrate, wherein the shell is integrally formed with the milk storage container or detachably fixed to the milk storage container, and the gas of the negative pressure drive system is connected to the vent.

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