Breast pump

Abstract

The utility model discloses a breast pump, relates to the breast pump technical field, the breast pump is provided with a control module and a negative pressure module electrically connected with the control module, the breast pump comprises at least two detachably connected host machines, the control module and the negative pressure module are respectively arranged in different host machines. According to the technical scheme, the problems that a traditional breast pump is inconvenient to clean and maintain and high in maintenance cost can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a breast pump technical field, especially a kind of breast pump. BACKGROUND

[0002] Breast pump is a kind of equipment for helping lactating mother to suck out milk from breast, and mother milk can be conveniently stored using breast pump, for example, when mother goes out or needs to leave mother milk for baby to eat at other time.Breast pump can help to relieve breast congestion and reduce the risk of mastitis.

[0003] The mainboard, battery and negative pressure pump and other structures in traditional breast pump are usually integrated together, and these hardware are integrated with the whole machine as internal mechanism of breast pump, so that the maintenance and replacement cost is high if one of them fails;Meanwhile, too concentrated hardware is not convenient for user to clean breast pump, which can easily cause negative pressure pump to be damaged by water, and further affect the use of the whole machine. UTILITY MODEL CONTENT

[0004] The utility model discloses a breast pump, which aims to solve the problems of inconvenient cleaning, high maintenance cost and high maintenance cost of traditional breast pump.

[0005] To achieve the above-mentioned purpose, the utility model provides a breast pump, which has a control module and a negative pressure module electrically connected with the control module, and includes at least two detachably connected host computers, and the control module and the negative pressure module are arranged in different host computers.

[0006] In an embodiment, the breast pump includes a first host computer and a second host computer detachably connected with the first host computer, the control module is arranged in the first host computer, and the negative pressure module is arranged in the second host computer; wherein, the first host computer forms a breast pumping channel, and the negative pressure module can generate negative pressure for sucking milk in the breast pumping channel.

[0007] In an embodiment, the breast pump further includes a third host computer, the third host computer has a battery module, the third host computer is detachably connected with the first host computer, and the battery module is electrically connected with the control module and the negative pressure module.

[0008] In an embodiment, the first host computer is provided with a mounting groove, and the second host computer is provided with a mounting boss matched with the mounting groove; or the second host computer is provided with a mounting groove, and the first host computer is provided with a mounting boss matched with the mounting groove; the mounting boss and the mounting groove are slidingly matched.

[0009] In an embodiment, the first host is provided with a power supply contact electrically connected with the battery module, and the second host is provided with a plug electrically connected with the negative pressure module; when the mounting boss is accommodated in the mounting groove, the plug abuts against the power supply contact and is conducted.

[0010] In an embodiment, a negative pressure cavity is formed in the second host, and the negative pressure module comprises a negative pressure pump and a negative pressure diaphragm, the negative pressure diaphragm is arranged at a communication position between the negative pressure cavity and the milk suction channel, and the negative pressure diaphragm blocks the communication between the negative pressure cavity and the milk suction channel.

[0011] In an embodiment, a limiting groove is recessed in the second host near one end of the milk suction channel, a negative pressure hole is formed in a groove bottom of the limiting groove and communicates the limiting groove with the negative pressure cavity, an edge of the negative pressure diaphragm is clamped and limited between the second host and a circumferential edge of a groove opening of the limiting groove, the rest structure of the negative pressure diaphragm is arranged along a groove wall of the limiting groove, and a closed space is formed between the negative pressure diaphragm and the groove wall of the limiting groove and communicates the negative pressure hole.

[0012] In an embodiment, the first host is provided with a connecting hole communicating the milk suction channel, the connecting hole communicates the milk suction channel and a side of the negative pressure diaphragm away from the negative pressure hole.

[0013] In an embodiment, the first host is provided with a connecting hole communicating the milk suction channel, the connecting hole communicates the milk suction channel and a side of the negative pressure diaphragm away from the negative pressure hole.

[0014] In an embodiment, the first host is provided with a connecting hole communicating the milk suction channel, the connecting hole communicates the milk suction channel and a side of the negative pressure diaphragm away from the negative pressure hole.

[0015] The breast pump provided by the utility model realizes modular design by setting the control module and the negative pressure module in two detachably connected main machines. Specifically, the control module includes core components such as a mainboard and a battery, and is responsible for operation control and power management of the breast pump; the negative pressure module includes components such as a negative pressure pump and a negative pressure diaphragm, and is used for generating and adjusting the negative pressure required for breast pumping. The two main machines are detachably connected through an electrical interface and a mechanical connection structure (such as a buckle or a thread). In the use process, the user can easily detach and replace the faulty module according to the needs, without the need to replace the entire device. For example, when the negative pressure module fails, the user only needs to replace the module to restore the normal use of the breast pump, greatly reducing the maintenance cost and time. The breast pump with the modular design has remarkable beneficial effects. First, by dispersing the key components into different main machine modules, the maintenance and replacement costs are effectively reduced. The user does not need to replace the entire device due to the failure of one component, but only needs to replace the faulty module, greatly improving the economy and service life of the product. Secondly, the modular design makes the cleaning and maintenance of the breast pump more convenient. The user can easily detach the negative pressure module for cleaning, avoiding damage caused by improper cleaning, thereby further prolonging the service life of the device and improving the use safety. BRIEF DESCRIPTION OF DRAWINGS

[0016] 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 for those skilled in the art, other drawings can also be obtained according to the structure shown in these drawings without creative labor.

[0017] Figure 1 The structure schematic view of the breast pump one embodiment provided by the utility model;

[0018] Figure 2 The sectional view of the breast pump one embodiment provided by the utility model;

[0019] Figure 3 The Figure 2 The local enlarged view of A in the middle;

[0020] Figure 4 The structure schematic view of the shell one embodiment provided by the utility model;

[0021] Figure 5 The structure schematic view of the main body one embodiment provided by the utility model.

[0022] Explanation of reference numerals:

[0023] 100, breast pump; 1, control module; 2, negative pressure module; 3, first host; 4, second host; 3a, breast pumping channel; 5, third host; 51, battery module; 3b, mounting groove; 41, mounting boss; 31, power supply contact; 42, plug; 4a, negative pressure cavity; 21, negative pressure pump; 22, negative pressure diaphragm; 4b, limiting groove; 4c, negative pressure hole; 3c, connecting hole; 3d, mounting groove; 6, milk collection bin; 3e, milk collection hole.

[0024] The realization, functional features and advantages of the utility model will be further described in combination with embodiments with reference to the drawings. DETAILED DESCRIPTION

[0025] 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 belong to the protection scope of the utility model.

[0026] 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 posture, and if the certain posture changes, the directional indications also change accordingly.

[0027] In addition, if the embodiments of the utility model involve descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, "and / or" or "and / or" appearing throughout the text means that the three parallel schemes are included, taking "A and / or B" as an example, including 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.

[0028] The utility model provides a kind of breast pump 100.

[0029] Please refer to Figure 1 And Figure 2In an embodiment of the present application, the breast pump 100 has a control module 1 and a negative pressure module 2 electrically connected with the control module 1, and the breast pump 100 comprises at least two host machines which are detachably connected, and the control module 1 and the negative pressure module 2 are arranged in different host machines respectively.

[0030] In the embodiment, the breast pump 100 of the present application realizes the modular design by arranging the control module 1 and the negative pressure module 2 in two detachably connected host machines respectively. Specifically, the control module 1 comprises core components such as a mainboard and a battery, and is responsible for the operation control and power management of the breast pump 100; the negative pressure module 2 comprises components such as a negative pressure pump 21 and a negative pressure diaphragm 22, and is used for generating and adjusting the negative pressure required for breast pumping. The two host machines are detachably connected through an electrical interface and a mechanical connection structure (such as a buckle or a thread). In the use process, the user can easily detach and replace the faulty module according to the needs, without the need to replace the entire device. For example, when the negative pressure module 2 fails, the user only needs to replace the module to restore the normal use of the breast pump 100, greatly reducing the maintenance cost and time. The breast pump 100 with such modular design has significant beneficial effects. First, by dispersing the key components into different host machine modules, the maintenance and replacement costs are effectively reduced. The user does not need to replace the entire device due to the failure of one component, but only needs to replace the faulty module, which greatly improves the economy and service life of the product. Secondly, the modular design makes the cleaning and maintenance of the breast pump 100 more convenient. The user can easily detach the negative pressure module 2 for cleaning, avoiding damage caused by improper cleaning, thereby further prolonging the service life of the device and improving the use safety.

[0031] In an embodiment of the present application, please refer to Figure 2 , the breast pump 100 comprises a first host machine 3 and a second host machine 4 detachably connected with the first host machine 3, the control module 1 is arranged in the first host machine 3, and the negative pressure module 2 is arranged in the second host machine 4; wherein the first host machine 3 forms a breast pumping channel 3a, and the negative pressure module 2 can generate a negative pressure for pumping milk in the breast pumping channel 3a.

[0032] In an embodiment, the first host 3 and the second host 4 are combined together through a detachable connection to form a complete breast pump 100 structure. The first host 3 is internally provided with a control module 1 for controlling the running state and power management of the breast pump 100. At the same time, the first host 3 is internally designed with a breast pumping channel 3a, which penetrates through the host, for guiding the flow of milk. The second host 4 contains a negative pressure module 2, mainly including a diaphragm pump, for generating and adjusting the negative pressure required for breast pumping. In the working process, the negative pressure module 2 generates negative pressure through the breast pumping channel 3a to suck milk from the breast and guide it to the milk collection device. Among them, the power supply can be arranged in the first host 3 or the second host 4, and the first host 3 and the second host 4 are stably connected through an electrical interface and a mechanical connection structure (such as a buckle, a thread or a magnetic attraction connection), and the electrical connection and functional cooperation between the negative pressure module 2 and the control module 1 are ensured. The breast pump 100 with such a split design realizes modular functional partitioning by arranging the control module 1 and the negative pressure module 2 in the two hosts respectively, so that the maintenance and replacement of the breast pump 100 are more convenient. When the negative pressure module 2 fails, the user only needs to replace the second host 4 without replacing the entire equipment, which greatly reduces the maintenance cost and time. Such a split structure also facilitates the user to clean and disinfect the breast pump 100, especially the negative pressure module 2 can be detached alone, avoiding damage to the equipment due to improper cleaning, further prolonging the service life of the breast pump 100 and improving the reliability and safety of the product.

[0033] In an embodiment of the present application, please refer to Figure 2 The breast pump 100 further includes a third host 5, the third host 5 has a battery module 51, the third host 5 is detachably connected to the first host 3, and the battery module 51 is electrically connected to the control module 1 and the negative pressure module 2.

[0034] In the embodiment, the breast pump 100 also has a third host 5, which is internally provided with a battery module 51. The third host 5 is connected with the first host 3 in a detachable manner, so as to ensure that the battery module 51 can stably provide power support for the control module 1 and the negative pressure module 2. In a specific implementation, the first host 3 is internally provided with the control module 1 and a breast pumping channel 3a, the second host 4 is internally provided with the negative pressure module 2, and the battery module 51 in the third host 5 is connected with the first two in an electrical connection manner, forming a complete power supply and function coordination system, that is, different from the above embodiment, the part of the first host 3 in the above embodiment is further divided into two detachable parts, and detachable connection of the battery module 51 and the control module is further realized. This split battery design allows users to easily replace the battery module 51 as needed without disassembling or repairing the entire breast pump 100. For example, when the battery is out of power or the battery module 51 fails, the user only needs to disassemble and replace the third host 5 to quickly restore the normal use of the breast pump 100, while avoiding the problem of scrapping the entire machine due to battery aging or damage. This three-host modular design significantly improves the flexibility and service life of the breast pump 100. First, the independent battery module 51 design makes battery replacement and maintenance more convenient, and users do not need to replace the entire device due to battery problems, greatly reducing the use cost and maintenance time. Second, the detachability of the battery module 51 also provides the possibility for product upgrading and individualization, for example, users can choose battery modules 51 of different capacities according to their own needs to adapt to different use scenarios. In addition, the split design further optimizes the structural layout of the breast pump 100, making the functions of each module more independent, reducing the risk of damage to the entire machine due to a single module failure, and improving the reliability and user experience of the product.

[0035] In an embodiment of the utility model, please refer to Figure 1 , the first host 3 is provided with an installation groove 3b, and the second host 4 is provided with an installation boss 41 matched with the installation groove 3b;Or the second host 4 is provided with an installation groove 3b, and the first host 3 is provided with an installation boss 41 matched with the installation groove 3b;The installation boss 41 and the installation groove 3b are in sliding fit.

[0036] In an embodiment, the first host 3 and the second host 4 are detachably connected through a sliding fit structure, which can be realized by a guide rail slider structure or a groove and boss cooperation; one of the first host 3 and the second host 4 is provided with a mounting groove 3b, and the other is provided with a mounting boss 41 matched with the mounting groove 3b. In the assembly process, the user can align the mounting boss 41 with the mounting groove 3b and slide along the guide of the groove, so as to tightly connect the first host 3 and the second host 4. The sliding fit design not only ensures the stability of the mechanical connection between the two hosts, but also realizes the electrical connection between the control module 1 and the negative pressure module 2 through the electrical interface (such as metal spring needle or contact sheet). When disassembling, the user only needs to slide reversely to easily separate the two hosts, which is simple and convenient without the need of additional tools. The sliding fit connection mode brings significant convenience for the use and maintenance of the breast pump 100. First, the sliding connection structure is simple and easy to use, and the user can quickly complete the assembly and disassembly of the hosts, which greatly improves the use efficiency and user experience of the product. Secondly, this design not only ensures the stability of the mechanical connection, but also realizes precise positioning through the cooperation of the groove and the boss, avoiding the problem of poor electrical connection or function failure caused by misplacement of parts.

[0037] In an embodiment of the utility model, please refer to Figures 1 to 5 The first host 3 is provided with a power supply contact 31 electrically connected with the battery module 51, and the second host 4 is provided with a plug 42 electrically connected with the negative pressure module 2; when the mounting boss 41 is accommodated in the mounting groove 3b, the plug 42 abuts against and conducts with the power supply contact 31.

[0038] In this embodiment, the first host 3 and the second host 4 achieve power supply and functional coordination between modules through the electrical connection structure. The first host 3 is provided with power supply contacts 31 electrically connected to the battery module 51, and the second host 4 is provided with a plug 42 electrically connected to the negative pressure module 2. When the first host 3 and the second host 4 are slidably fitted through the mounting protrusion 41 and the mounting recess 3b and assembled, the plug 42 of the second host 4 will abut against the power supply contacts 31 of the first host 3, thereby realizing electrical connection and conduction. This design ensures that the negative pressure module 2 can immediately obtain stable power supply after assembly is completed, and at the same time guarantees the reliability of electrical connection through the tightness of mechanical connection. When the user assembles or disassembles the host module, no additional operation is needed to complete the electrical connection or disconnection, greatly simplifying the use process. This electrical connection design significantly improves the modular function and user experience of the breast pump 100. First, through the cooperative design of mechanical connection and electrical connection, automatic conduction during assembly of the host module and automatic power-off during disassembly are realized, without the need for manual operation by the user, reducing the possibility of misoperation and improving the safety and reliability of the product. Secondly, this structure optimizes the electrical connection between modules, avoiding the contact failure or looseness problem that may be caused by traditional plug-in connection, ensuring the stable operation of the breast pump 100 during use. In addition, this design also provides convenience for maintenance and replacement of the product, and the user can easily replace the faulty module without worrying about electrical connection problems, further reducing maintenance cost and time.

[0039] In one embodiment of the present application, please refer to Figures 2 to 4 The second host 4 forms a negative pressure cavity 4a, the negative pressure module 2 includes a negative pressure pump 21 and a negative pressure diaphragm 22, the negative pressure diaphragm 22 is arranged at the communication position of the negative pressure cavity 4a and the breast pumping channel 3a, and blocks the communication between the negative pressure cavity 4a and the breast pumping channel 3a.

[0040] In an embodiment, the second host 4 is internally designed with a negative pressure cavity 4a for accommodating the negative pressure module 2 and generating the negative pressure required for breast pumping. The negative pressure module 2 includes a negative pressure pump 21 and a negative pressure diaphragm 22, wherein the negative pressure diaphragm 22 is located at the communication between the negative pressure cavity 4a and the breast pumping channel 3a. The negative pressure pump 21 forms a negative pressure in the negative pressure cavity 4a by suction, and the negative pressure diaphragm 22 plays a key isolation role to prevent the gas in the negative pressure cavity 4a from directly contacting the milk liquid in the breast pumping channel 3a. In the working process, the negative pressure is transmitted to the breast pumping channel 3a through the negative pressure diaphragm 22 to generate the negative pressure environment required for breast pumping, and the negative pressure diaphragm 22 ensures that the milk liquid cannot enter the negative pressure cavity 4a, avoiding the pollution and damage of the milk liquid to the negative pressure module 2. This structural design realizes efficient transmission of negative pressure and reliable operation of the module. The design of this negative pressure module 2 significantly improves the performance and service life of the breast pump 100. The arrangement of the negative pressure diaphragm 22 effectively blocks the direct communication between the negative pressure cavity 4a and the breast pumping channel 3a, prevents the milk liquid from entering the negative pressure cavity 4a, and avoids damage or failure of the negative pressure pump 21 due to the entry of the milk liquid, thereby reducing maintenance costs and equipment damage risks. By integrating the negative pressure module 2 in the second host 4 and separating it from other modules, the modular design of the breast pump 100 is further enhanced, making it easier for users to clean, maintain, or replace the negative pressure module 2 individually, thereby prolonging the overall service life of the product.

[0041] In an embodiment of the present application, please refer to Figure 3 and Figure 4 , the second host 4 is recessed with a limiting groove 4b at one end close to the breast pumping channel 3a, the groove bottom of the limiting groove 4b is provided with a negative pressure hole 4c communicating the limiting groove 4b and the negative pressure cavity 4a, the edge of the negative pressure diaphragm 22 is clamped and limited between the circumference of the second host 4 and the groove opening of the limiting groove 4b, the rest of the structure of the negative pressure diaphragm 22 is arranged along the groove wall of the limiting groove 4b, and the closed space communicating the negative pressure hole 4c is formed between the negative pressure diaphragm 22 and the groove wall of the limiting groove 4b.

[0042] In the embodiment, the second host 4 is designed with a limiting groove 4b close to one end of the milk suction channel 3a, which is used to fix the negative pressure diaphragm 22 and ensure its stable work. The groove bottom of the limiting groove 4b is provided with a negative pressure hole 4c, which is communicated between the limiting groove 4b and the negative pressure cavity 4a and is used to transmit the negative pressure. The edge of the negative pressure diaphragm 22 is clamped between the second host 4 and the circumferential edge of the limiting groove 4b, and the position is ensured to be stable through bolts or clamping grooves and the like. The rest of the negative pressure diaphragm 22 is arranged along the groove wall of the limiting groove 4b and forms a closed space with the groove wall, which is communicated with the negative pressure cavity 4a through the negative pressure hole 4c. In the working process, the negative pressure is transmitted to the closed space through the negative pressure hole 4c and acts on the milk suction channel 3a through the negative pressure diaphragm 22, so as to realize the breast pumping function. The structure design ensures that the negative pressure diaphragm 22 is fixed firmly and has good sealing performance, and at the same time provides a stable channel for the effective transmission of the negative pressure. The sealing performance and waterproof performance of the breast pump 100 are enhanced, the milk liquid is prevented from penetrating into the negative pressure cavity 4a, the service life of the equipment is further prolonged, and the maintenance cost is reduced.

[0043] In an embodiment of the utility model, please refer to Figure 2 and Figure 3 , the first host 3 is provided with a connecting hole 3c communicated with the milk suction channel 3a, and the connecting hole 3c is communicated between the milk suction channel 3a and the side of the negative pressure diaphragm 22 away from the negative pressure hole 4c.

[0044] In an embodiment, the first host 3 is internally provided with a milk suction channel 3a for guiding the flow of milk liquid. In order to realize the effective transmission of negative pressure and the breast pumping function, the first host 3 is provided with a connecting hole 3c, one end of which is communicated with the milk suction channel 3a and the other end of which is communicated with the side of the negative pressure diaphragm 22 away from the negative pressure hole 4c. In the working process, the negative pressure is transmitted to the connecting hole 3c through the negative pressure diaphragm 22 and further acts on the milk suction channel 3a, so as to form a stable negative pressure environment in the milk suction channel 3a and realize the extraction of milk liquid. The structure design closely connects the negative pressure diaphragm 22 and the milk suction channel 3a through the connecting hole 3c, ensures that the negative pressure can be efficiently transmitted to the milk extraction area, and at the same time avoids the leakage and loss of negative pressure in the transmission process.

[0045] In an embodiment of the utility model, please refer to Figure 1 and Figure 5 , the first host 3 is formed with a mounting groove 3d away from the second host 4, and the breast pump 100 further comprises a milk collection bin 6, and the milk collection bin 6 is accommodated in the mounting groove 3d; wherein the negative pressure module 2 and the mounting groove 3d are located on opposite sides of the milk suction channel 3a.

[0046] In this embodiment, the first host 3 is designed with a mounting slot 3d at one end away from the second host 4, which is used to accommodate and fix the milk collection bin 6. The milk collection bin 6 is tightly positioned on the first host 3 through cooperation with the mounting slot 3d, forming a stable storage space for collecting the milk extract from the milk suction channel 3a. In terms of structural layout, the negative pressure module 2 is located on one side of the milk suction channel 3a, while the mounting slot 3d (containing the milk collection bin 6) is located on the other side of the milk suction channel 3a, both of which are connected through the milk suction channel 3a. This design enables the negative pressure generated by the negative pressure module 2 to be efficiently transmitted to the milk collection bin 6 through the milk suction channel 3a, achieving smooth extraction and collection of milk. At the same time, the tight cooperation between the milk collection bin 6 and the first host 3 ensures the sealing and safety of the milk during the collection process, avoiding leakage. This structural design significantly improves the functionality and user experience of the breast pump 100. First, by fixing the milk collection bin 6 in the mounting slot 3d of the first host 3, the tight connection between the milk collection bin 6 and the milk suction channel 3a is achieved, ensuring that the milk can flow smoothly from the milk suction channel 3a into the milk collection bin 6, improving the efficiency and stability of milk extraction. This design also enhances the sealing and safety of the breast pump 100, effectively preventing milk leakage, and also facilitates the user to disassemble, clean and replace the milk collection bin 6, further improving the hygiene and service life of the product.

[0047] In one embodiment of the present application, please refer to Figure 5 The slot wall of the mounting slot 3d is provided with a milk collection hole 3e communicating with the milk suction channel 3a, and the milk collection hole 3e communicates the milk collection bin 6 and the milk suction channel 3a.

[0048] In one embodiment, the mounting slot 3d of the first host 3 is provided with a milk collection hole 3e on the slot wall, which directly communicates the milk suction channel 3a and the milk collection bin 6. Specifically, the milk in the milk suction channel 3a is extracted under the action of negative pressure and flows into the milk collection bin 6 in the mounting slot 3d through the milk collection hole 3e. This design realizes the smooth transition of milk from the milk suction channel 3a to the milk collection bin 6 through the milk collection hole 3e, ensuring that the milk can be efficiently and stably collected. The position and size of the milk collection hole 3e are optimized to ensure the efficient transmission of negative pressure and the smooth flow of milk, while avoiding the accumulation or leakage of milk at the orifice. Through this structure, the milk collection efficiency of the breast pump 100 is significantly improved, while maintaining the compactness and stability of the overall structure. This design optimizes the internal structure of the breast pump 100, enabling the negative pressure to efficiently act on milk extraction, while reducing the negative pressure loss caused by complex structure. The setting of the milk collection hole 3e further enhances the sealing of the breast pump 100, preventing milk leakage, ensuring the hygiene and safety of use, and also facilitating the user to disassemble, clean and replace the milk collection bin 6, prolonging the service life of the product.

[0049] The above merely illustrates the exemplary embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structural transformation or direct / indirect application in other related technical fields under the technical concept of the present application and by using the content of the present application specification and drawings are included in the patent protection scope of the present application.

Claims

1. A breast pump, characterized in that The breast pump has a control module (1) and a negative pressure module (2) electrically connected with the control module (1), and comprises at least two detachably connected main machines, and the control module (1) and the negative pressure module (2) are arranged in different main machines respectively.

2. The breast pump of claim 1, wherein, The breast pump comprises a first main machine (3) and a second main machine (4) detachably connected with the first main machine (3), the control module (1) is arranged in the first main machine (3), and the negative pressure module (2) is arranged in the second main machine (4); wherein a breast pumping channel (3a) is formed in the first main machine (3), and the negative pressure module (2) can generate negative pressure for pumping milk liquid in the breast pumping channel (3a).

3. The breast pump of claim 2, wherein, The breast pump further comprises a third main machine (5) having a battery module (51), the third main machine (5) is detachably connected with the first main machine (3), and the battery module (51) is electrically connected with the control module (1) and the negative pressure module (2).

4. The breast pump of claim 3, wherein, The first main machine (3) is provided with a mounting groove (3b), and the second main machine (4) is provided with a mounting boss (41) matched with the mounting groove (3b); or the second main machine (4) is provided with a mounting groove (3b), and the first main machine (3) is provided with a mounting boss (41) matched with the mounting groove (3b). The mounting boss (41) is in sliding fit with the mounting groove (3b).

5. The breast pump of claim 4, wherein, The first main machine (3) is provided with a power supply contact (31) electrically connected with the battery module (51), and the second main machine (4) is provided with a plug (42) electrically connected with the negative pressure module (2); when the mounting boss (41) is accommodated in the mounting groove (3b), the plug (42) abuts against and is in conduction with the power supply contact (31).

6. A breast pump according to any one of claims 2 to 5, wherein, The second main machine (4) is formed with a negative pressure cavity (4a), the negative pressure module (2) comprises a negative pressure pump (21) and a negative pressure diaphragm (22), the negative pressure pump (21) is used for driving the negative pressure diaphragm (22) to move, so as to generate negative pressure in the breast pumping channel (3a), the negative pressure diaphragm (22) is arranged at a communication position between the negative pressure cavity (4a) and the breast pumping channel (3a), and the communication between the negative pressure cavity (4a) and the breast pumping channel (3a) is blocked.

7. The breast pump of claim 6, wherein, The second main machine (4) is recessed with a limiting groove (4b) near one end of the breast pumping channel (3a), a negative pressure hole (4c) is formed in the groove bottom of the limiting groove (4b) and communicates the limiting groove (4b) and the negative pressure cavity (4a), the edge of the negative pressure diaphragm (22) is clamped between the second main machine (4) and the circumferential edge of the slot opening of the limiting groove (4b), the remaining structure of the negative pressure diaphragm (22) is arranged along the groove wall of the limiting groove (4b), and the negative pressure diaphragm (22) and the groove wall of the limiting groove (4b) form a closed space communicating with the negative pressure hole (4c).

8. The breast pump of claim 7, wherein, The first host (3) is provided with a connecting hole (3c) communicating with the milk suction channel (3a), and the connecting hole (3c) communicates the milk suction channel (3a) and the side of the negative pressure diaphragm (22) away from the negative pressure hole (4c).

9. The breast pump of any one of claims 2 to 5, wherein, The first host (3) is formed with a mounting groove (3d) at the end away from the second host (4), and the milk suction device further comprises a milk collection bin (6), and the milk collection bin (6) is accommodated in the mounting groove (3d); wherein the negative pressure module (2) and the mounting groove (3d) are located on opposite sides of the milk suction channel (3a).

10. The breast pump of claim 9, wherein, The groove wall of the mounting groove (3d) is provided with a milk collection hole (3e) communicating with the milk suction channel (3a), and the milk collection hole (3e) communicates the milk collection bin (6) and the milk suction channel (3a).

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