Air escape valve, integrated valve type vacuum pump and breast pump

Abstract

The invention discloses an air escape valve, an integrated valve type vacuum pump and a breast pump, and relates to the technical field of vacuumizing devices.The air escape valve comprises a shell, a driving motor and a valve body assembly, and an air cavity capable of generating negative pressure is formed in the shell; the driving motor comprises a stator and a driving shaft exposed out of the two ends of the stator, a first airflow channel is formed in the driving shaft, the first airflow channel penetrates through the driving shaft in the axial direction of the driving shaft, and the first airflow channel communicates with the air cavity; the valve body assembly comprises a linkage arm and a sealing piece, the linkage arm is connected with the driving shaft, and a second airflow channel communicated with the first airflow channel and the outside is formed in the linkage arm; the sealing piece is movably arranged in the second airflow channel; the driving motor drives the driving shaft to rotate and drives the linkage arm to rotate, so that the sealing piece shields the communication position of the second airflow channel and the outside. According to the technical scheme provided by the invention, the problem that the volume size of the breast pump is limited by an existing vacuum air exhaust assembly and an air escape valve can be solved.

Description

Technical Field

[0001] The invention relates to the technical field of vacuum pumping devices, and in particular to an air release valve, an integrated valve type vacuum pump and a breast pump. Background Art

[0002] Existing breast pumps mainly use a vacuum suction component to extract air, create a negative pressure air cavity and draw milk out to the milk suction channel; then by opening the air release valve, outside air is allowed to enter the air cavity which was originally in a negative pressure state, and the air pressure in the air cavity is restored to atmospheric pressure, and at the same time, the milk in the milk suction channel is discharged into the milk storage cavity at atmospheric pressure.

[0003] In the above-mentioned process of sucking and releasing milk, the vacuum suction component and the air release valve of the breast pump are the core structural parts. However, the overall volume of the two is currently large, which limits the internal structural layout of the breast pump, resulting in a larger overall size of the breast pump. At the same time, the vacuum suction component and the air release valve need to be driven by electricity, and the size of the battery is limited by the size of the volume; the air release valve is concentrated in the shell of the suction component, which is not convenient for daily repair and maintenance. The current vacuum suction component and air release valve limit the volume of the breast pump, which is not a good user experience. Summary of the invention

[0004] The main purpose of the present invention is to propose a deflation valve, an integrated valve vacuum pump and a breast pump, aiming to solve the problem that the current vacuum extraction component and the deflation valve limit the volume size of the breast pump, and the deflation valve is concentrated in the shell of the extraction component, which is inconvenient for daily repair and maintenance.

[0005] To achieve the above-mentioned purpose, the air release valve proposed in the present invention includes a shell, a drive motor and a valve body assembly, wherein an air cavity capable of generating negative pressure is formed in the shell; the drive motor is connected to the shell, and the drive motor is located on the outside of the shell, and the drive motor includes a stator and a drive shaft exposed at both ends of the stator, a first air flow channel is opened in the drive shaft, the first air flow channel penetrates the drive shaft along the axial direction of the drive shaft, and the first air flow channel connects the air cavity; the valve body assembly includes a linkage arm and a sealing member, the linkage arm is connected to the drive shaft, a second air flow channel connecting the first air flow channel with the outside is opened in the linkage arm; the sealing member is movably arranged in the second air flow channel; the drive motor drives the drive shaft to rotate, thereby driving the linkage arm to rotate, so that the sealing member blocks the connection between the second air flow channel and the outside.

[0006] In one embodiment, the valve body assembly further includes a stopper connected to the linkage arm, the stopper is provided with an air leakage hole connecting the second air flow channel with the outside, and the stopper is located at one end of the linkage arm away from the driving shaft.

[0007] In one embodiment, a stop surface is formed at one end of the stopper close to the sealing member, the stop surface is located at the periphery of the air leakage hole, and a sealing surface matching with the stop surface is formed at one end of the sealing member close to the stopper.

[0008] In one embodiment, the stop surface is an arc surface, the sealing element is a sphere, the radius of the sphere is smaller than the radius of the arc surface, and the radius of the sphere is larger than the radius of the air leakage hole.

[0009] In one embodiment, the valve body assembly includes a plurality of the seals and a plurality of the stoppers, a plurality of the second airflow channels interconnected with each other are provided in the linkage arm, each of the seals is movably disposed in a second airflow channel, and each of the stoppers is connected to the linkage arm and is located at one end of the second airflow channel away from the drive shaft.

[0010] In one embodiment, each of the stoppers is connected to an adjacent stopper.

[0011] In one embodiment, each of the sealing members is a magnetic member, and the sealing members are magnetically connected.

[0012] In one embodiment, the valve body assembly further comprises a reset elastic member, the reset elastic member is elastically connected to the sealing member and the linkage arm, and the reset elastic member is located at one end of the linkage arm close to the driving shaft.

[0013] In one embodiment, a limiting platform is protruded from the inner wall of the second air flow channel, and the limiting platform is located at one end of the linkage arm close to the driving shaft.

[0014] The present invention also proposes an integrated valve vacuum pump, which includes an exhaust component, a rotating shaft and an air release valve; the rotating shaft is located in the air cavity, the shell is provided with a connecting channel connected to the breast pump, the driving motor can drive the rotating shaft to rotate and drive the exhaust component through the rotating shaft to form a negative pressure space in the air cavity, the two ends of the driving shaft are respectively connected to the rotating shaft and the linkage arm, and the air cavity is connected to the second air flow channel, the first air flow channel and the outside world in sequence.

[0015] The present invention further provides a breast pump, comprising a suction cup connected to the air cavity with an integrated valve vacuum pump; and a milk storage container, wherein the milk storage container is used to store milk sucked out by the suction cup.

[0016] The technical solution of the present invention designs a deflation valve, which includes a driving motor, a linkage arm and a sealing member. A negative pressure air cavity is formed in the shell. The driving motor is connected to the shell by setting a driving motor. The driving motor is located outside the shell. The driving motor includes a stator and a driving shaft with the stator exposed at both ends. A first air flow channel is provided in the driving shaft, and the first air flow channel runs through the axial direction of the driving shaft and connects the air cavity. The valve body assembly is composed of a linkage arm and a sealing member. The linkage arm is connected to the driving shaft, and a second air flow channel is provided inside the linkage arm, and the second air flow channel connects the first air flow channel with the outside. The sealing member moves in the second air flow channel. When the driving motor drives the driving shaft to rotate, the linkage arm rotates accordingly, driving the sealing member to block the connection between the second air flow channel and the outside, thereby realizing the closing and opening function of the deflation valve. By providing the first air flow channel in the driving shaft, the complex pipeline structure is reduced, thereby reducing the volume size of the entire breast pump, which is convenient for carrying and use. Since the valve body assembly is located outside the shell, there is no need to disassemble the entire shell during repair and maintenance, and only the valve body assembly part needs to be operated, which greatly simplifies the maintenance process and reduces the maintenance cost. The drive motor directly drives the linkage arm and the seal, reducing the intermediate transmission links and improving the response speed and operating efficiency of the deflation valve. By integrating the valve body assembly, the deflation function is integrated with the drive motor, making the structure of the entire breast pump more compact and improving space utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0018] Figure 1 A schematic structural diagram of an embodiment of a gas relief valve provided by the present invention;

[0019] Figure 2 A schematic structural diagram of an embodiment of a linkage arm provided by the present invention;

[0020] Figure 3 A schematic structural diagram of another embodiment of the linkage arm provided by the present invention;

[0021] Figure 4 A schematic structural diagram of another embodiment of the linkage arm provided by the present invention;

[0022] Figure 5 A schematic structural diagram of an embodiment of an integrated valve vacuum pump provided by the present invention;

[0023] Figure 6This is a schematic structural diagram of another embodiment of the integrated valve vacuum pump provided by the present invention.

[0024] Description of Figure Numbers:

[0025] 100, air release valve; 1, driving motor; 11, driving shaft; 1a, first air flow channel; 2, linkage arm; 2a, second air flow channel; 3, sealing member; 21, stop member; 21a, air release hole; 211, stop surface; 31, sealing surface; 22, reset elastic member; 23, limit table; 32, magnetic member; 200, integrated valve vacuum pump; 4, exhaust assembly; 5, housing; 6, rotating shaft; 5a, air cavity; 5b, connecting channel; 6a, third air flow channel.

[0026] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] It should be noted that if the embodiments of the present invention 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 status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0029] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0030] The present invention provides a gas relief valve 100 .

[0031] See also Figures 1 to 5 In one embodiment of the present invention, the air release valve 100 includes a shell 5, a drive motor 1 and a valve body assembly, wherein an air cavity 5a capable of generating negative pressure is formed in the shell 5; the drive motor 1 is connected to the shell 5, and the drive motor 1 is located on the outside of the shell 5. The drive motor 1 includes a stator and a drive shaft 11 exposed at both ends of the stator, and a first air flow channel 1a is provided in the drive shaft 11, and the first air flow channel 1a penetrates the drive shaft 11 along the axial direction of the drive shaft 11, and the first air flow channel 1a communicates with the air cavity 5a; the valve body assembly includes a linkage arm 2 and a sealing member 3, the linkage arm 2 is connected to the drive shaft 11, and a second air flow channel 2a connecting the first air flow channel 1a with the outside is provided in the linkage arm 2; the sealing member 3 is movably arranged in the second air flow channel 2a; the drive motor 1 drives the drive shaft 11 to rotate, and drives the linkage arm 2 to rotate, so that the sealing member 3 blocks the connection between the second air flow channel 2a and the outside.

[0032] In this embodiment, the air release valve 100 includes an air cavity 5a capable of generating negative pressure constructed in the housing 5, and the air cavity 5a realizes a negative pressure environment through a specific structural design to facilitate the operation of the breast pump. The drive motor 1 is connected to the housing 5 and is located outside the housing 5. Such a layout is conducive to using the drive motor 1 to drive the air release valve 100 and the exhaust device. The drive motor 1 is composed of a stator and a drive shaft 11 with the stator exposed at both ends. A first air flow channel 1a is opened in the drive shaft 11, and the first air flow channel 1a penetrates along the axial direction of the drive shaft 11 to achieve communication between the air cavity 5a and the outside. Specifically, the air cavity 5a is formed by arranging a sealed cavity in the housing 5 and installing an air pump on one side of the cavity, and generating negative pressure through the operation of the air pump. Or the air cavity 5a is formed by arranging a cavity with an air permeable membrane in the housing 5, and the air permeable membrane allows air to flow in one direction. When the air pump is working, the air pressure on one side of the air permeable membrane is reduced to form a negative pressure. The provision of the first air flow channel 1a makes the air cavity 5a more directly connected to the outside world, improves the efficiency of negative pressure generation and air release, and thus improves the working performance of the breast pump. Since the drive motor 1 is located outside the housing 5, when the motor needs to be repaired or replaced, the operation is simpler and there is no need to disassemble the entire breast pump, saving maintenance time and cost.

[0033] In one embodiment, the valve body assembly design includes a linkage arm 2 and a seal 3. The linkage arm 2 is connected to the drive shaft 11 by bolts or integral injection molding, and a second airflow channel 2a is provided inside the linkage arm 2, which connects the first airflow channel 1a with the outside world, allowing air to flow freely. The seal 3 moves in the second airflow channel 2a and can block or open the channel as needed. The specific linkage arm 2 adopts a straight rod design, one end of the straight rod is fixedly connected to the drive shaft 11, and the other end is provided with a slide groove, and the seal 3 slides in the slide groove to control the opening and closing of the second airflow channel 2a. Or the linkage arm 2 adopts an L-shaped design, one arm of the L-shaped is connected to the drive shaft 11, and the other arm extends to the opening of the second airflow channel 2a, and the seal 3 is a freely rolling spherical structure, which controls the opening and closing of the channel by rolling. By driving the linkage arm 2 and the seal 3 to rotate by the drive motor 1, the second airflow channel 2a can be accurately controlled, thereby accurately adjusting the negative pressure and deflation process, and improving the efficiency and performance of the breast pump. Since the design of the linkage arm 2 and the seal 3 allows for quick disassembly and replacement, maintenance and repair become more convenient, reducing maintenance costs. The movable design of the seal 3 reduces wear, improves the durability and service life of the components, and reduces the failure rate caused by damage to the seal 3.

[0034] The technical solution of the present invention designs a deflation valve 100, which includes a driving motor 1, a linkage arm 2 and a sealing member 3. A negative pressure air cavity 5a is formed in a housing 5. The driving motor 1 is connected to the housing 5 by setting the driving motor 1. The driving motor 1 is located outside the housing 5. The driving motor 1 includes a stator and a driving shaft 11 with the stator exposed at both ends. A first airflow channel 1a is provided in the driving shaft 11, and the first airflow channel 1a runs through the axial direction of the driving shaft 11 and communicates with the air cavity 5a. The valve body assembly is composed of a linkage arm 2 and a sealing member 3. The linkage arm 2 is connected to the driving shaft 11, and a second airflow channel 2a is provided inside, and the second airflow channel 2a communicates with the first airflow channel 1a and the outside. The sealing member 3 moves in the second airflow channel 2a. When the driving motor 1 drives the driving shaft 11 to rotate, the linkage arm 2 rotates accordingly, driving the sealing member 3 to block the connection between the second airflow channel 2a and the outside, thereby realizing the closing and opening functions of the deflation valve 100. By opening the first air flow channel 1a in the drive shaft 11, the complex pipeline structure is reduced, thereby reducing the size of the entire breast pump, making it easy to carry and use. Since the valve body assembly is located outside the shell 5, there is no need to disassemble the entire shell 5 during repair and maintenance, and only the valve body assembly needs to be operated, which greatly simplifies the repair process and reduces maintenance costs. The drive motor 1 directly drives the linkage arm 2 and the seal 3, reducing the intermediate transmission links and improving the response speed and operating efficiency of the deflation valve 100. By integrating the valve body assembly, the deflation function is integrated with the drive motor 1, making the structure of the entire breast pump more compact and improving space utilization.

[0035] In one embodiment of the present invention, see Figure 1 and Figure 2 The valve body assembly also includes a stopper 21, which is connected to the linkage arm 2. The stopper 21 is provided with an air leakage hole 21a connecting the second air flow channel 2a with the outside. The stopper 21 is located at one end of the linkage arm 2 away from the driving shaft 11.

[0036] In this embodiment, the stopper 21 is connected to the linkage arm 2 through a thread or a slot, and a vent hole 21a is provided on the stopper 21, which connects the second airflow channel 2a with the outside world. The stopper 21 is located at one end of the linkage arm 2 away from the drive shaft 11. Specifically, the stopper 21 is designed as an independent component, and the vent hole 21a is circular and directly penetrates the stopper 21, so as to realize the rapid discharge of the airflow, optimize the structure of the valve body assembly, and improve the working efficiency of the breast pump. When selecting the material of the stopper 21, the noise reduction performance is considered. The stopper 21 is generally made of rubber or polyurethane. The rubber material has good shock absorption and buffering performance, can effectively absorb impact force and reduce noise. In particular, low-elasticity rubber can reduce the impact sound when the stopper 21 contacts other components, thereby improving the noise reduction effect. The polyurethane material also has good buffering and vibration reduction characteristics, which can effectively reduce the noise generated during the impact. In addition, the bolts coated with polyurethane can play a buffering role when the workpiece hits, further reducing noise and damage to the workpiece. The setting of the stopper 21 makes the deflation operation easier, and the airflow can be controlled without complicated operations, which improves the convenience of use. Since the connection method between the stopper 21 and the linkage arm 2 is simple, it is easy to disassemble and maintain, which reduces the maintenance cost and time. The design of the deflation hole 21a helps to improve the sealing of the entire valve body assembly, prevent air leakage in the non-deflation state, and ensure the milk sucking effect of the breast pump.

[0037] In one embodiment of the present invention, see Figure 3 A stop surface 211 is formed at one end of the stopper 21 close to the sealing member 3 , and the stop surface 211 is located at the periphery of the air leakage hole 21 a . A sealing surface 31 matching with the stop surface 211 is formed at one end of the sealing member 3 close to the stopper 21 .

[0038] In one embodiment, the end of the stopper 21 close to the seal 3 is designed as a stopper surface 211, and the stopper surface 211 is located at the periphery of the air leakage hole 21a to ensure that the seal 3 and the stopper 21 are tightly matched. The end of the seal 3 close to the stopper 21 is formed with a sealing surface 31 that matches the stopper surface 211. Specifically, the stopper surface 211 is designed as a plane, which is in direct contact with the plane sealing surface 31 of the seal 3, and is suitable for occasions with low pressure and not very high sealing requirements. Or the stopper surface 211 is designed as a surface with a groove, which matches with the corresponding convex sealing surface 31 of the seal 3, and is suitable for occasions with high pressure and stronger sealing performance. Through the precise matching of the stopper surface 211 and the sealing surface 31, the leakage of gas or liquid can be effectively prevented, and the sealing performance of the entire system can be improved. The matching design of the stopper 21 and the seal 3 reduces wear, improves the durability and service life of the components, and reduces the failure rate caused by damage to the seal 3. By designing different shapes of the stopper surface 211 and the sealing surface 31, different working pressures and environmental conditions can be adapted, making the stopper 21 and the sealing member 3 more widely used. Since the matching design of the stopper 21 and the sealing member 3 is simple, it is easy to disassemble and maintain, which reduces the maintenance cost and time. The design of the stopper 21 helps to maintain the stability of the sealing system under vibration or impact, and prevents equipment failure caused by sealing failure.

[0039] In one embodiment of the present invention, see Figure 3 and Figure 4 The stop surface 211 is an arc surface, the sealing member 3 is a sphere, the radius of the sphere is smaller than the radius of the arc surface, and the radius of the sphere is larger than the radius of the air leakage hole 21a.

[0040] In this embodiment, the stop surface 211 of the stopper 21 is designed as an arc surface, which cooperates with the spherical shape of the seal 3 to form a dynamic sealing structure. The radius of the sphere is smaller than the radius of the arc surface, and the radius of the sphere is larger than the radius of the air leakage hole 21a, ensuring that the seal 3 can move freely in the channel without getting stuck, and can seal the air leakage hole 21a. Specifically, the stop surface 211 is a semi-arc surface, and the seal 3 is a sphere. This design enables the seal 3 to form a stable sealing contact with the stop surface 211 when moving in the second air flow channel 2a, which is suitable for occasions that require frequent opening and closing. The stop surface 211 is a quarter arc surface, and the seal 3 is a quarter sphere. This design allows the seal 3 to move within a specific angle range, which is suitable for occasions that require precise control of airflow. The cooperation between the arc surface and the sphere provides a dynamic sealing mechanism that can maintain an effective seal when the seal 3 moves and reduce gas leakage. Since the diameter of the seal 3 is smaller than the diameter of the second airflow channel 2a, the seal 3 can move freely in the channel, providing better flexibility and adaptability, and is suitable for different working pressures and environments. The cooperation of the arc surface and the spherical body reduces the friction and wear between the seal 3 and the stopper 21, and prolongs the service life of the components. Since the seal 3 can move freely in the second airflow channel 2a, this design can quickly respond to airflow changes and improve the response speed and efficiency of the entire system.

[0041] In one embodiment of the present invention, see Figure 3 and Figure 4 The valve body assembly includes multiple sealing members 3 and multiple stop members 21. Multiple second air flow channels 2a that are interconnected are provided in the linkage arm 2. Each sealing member 3 is movably disposed in a second air flow channel 2a. Each stop member 21 is connected to the linkage arm 2 and is located at one end of a second air flow channel 2a away from the driving shaft 11.

[0042] In one embodiment, the valve body assembly includes a plurality of seals 3 and a plurality of stoppers 21, and a plurality of second airflow channels 2a that are interconnected are provided in the linkage arm 2. Each seal 3 is movably provided in a second airflow channel 2a, and each stopper 21 is connected to the linkage arm 2 and is located at one end of the second airflow channel 2a away from the drive shaft 11. Specifically, a plurality of spherical seals 3 are used, each seal 3 is provided in a corresponding second airflow channel 2a, and the stopper 21 is designed as a baffle with an arc surface, which cooperates with the arc surface of the spherical seal 3 and is located at the far end of the second airflow channel 2a. The seal 3 can effectively seal the air leakage hole 21a under the action of centrifugal force. By providing independent seals 3 and stoppers 21 in each second airflow channel 2a, the sealing performance of each channel can be ensured, gas leakage can be prevented, and the sealing efficiency of the entire system can be improved. Multiple seals 3 and multiple stoppers 21 are conducive to the stability of the overall structure and also improve the efficiency of the sealing and air leakage process. The independent seal and stopper design can reduce system failures caused by wear or damage of the seal 3 and enhance the stability and reliability of the system.

[0043] In one embodiment of the present invention, see Figure 4 , each stopper 21 is connected to the adjacent stopper 21 .

[0044] In this embodiment, each stopper 21 can be connected to the adjacent stopper 21 by bolt connection or one-piece injection molding, etc. By connecting the stopper 21 by bolts or one-piece injection molding, the structural stability of the entire valve body assembly can be improved, ensuring reliability under high pressure or vibration environments. The bolt connection method is convenient for later maintenance and replacement, because the bolt connection allows for quick disassembly and reassembly of the stopper 21, reducing maintenance time and costs. The one-piece injection molding connection method is suitable for various working environments, especially when space is limited or bolt connection cannot be used, injection molding provides a sturdy connection solution. The tight connection between the stoppers 21 helps to improve the sealing performance of the entire valve body assembly, prevent gas leakage, and improve the working effect of the breast pump. Whether it is a bolt or one-piece injection molding connection, it can enhance the durability of the stopper 21, reduce failures caused by unstable connection, and extend the service life of the product.

[0045] In one embodiment of the present invention, see Figure 3 Each sealing member 3 is a magnetic member 32, and each sealing member 3 is magnetically connected.

[0046] In one embodiment, each seal 3 is a magnetic member 32, and each seal 3 is magnetically connected. Specifically, each seal 3 is a magnetic sphere, and these spheres are attracted to each other and connected by magnetism to form a magnetic sealing barrier. The magnetic sphere can roll freely in the second airflow channel 2a, but always remains in a sealed state under the action of magnetism. Due to its unique magnetic connection method, the magnetic seal 3 can achieve the effect of rapid separation between the seal 3 and the air leakage hole 21a, which is particularly important for improving the response speed of the equipment. Since there is no physical contact between the magnetic seals 3, no wear will occur, thereby greatly extending the service life of the seal 3. Since the magnetic seal 3 has little physical contact, the friction is extremely small, which is suitable for high-speed rotation applications and reduces energy loss.

[0047] In one embodiment of the present invention, see Figure 6 The valve body assembly also includes a reset elastic member 22 , which is elastically connected to the sealing member 3 and the linkage arm 2 . The reset elastic member 22 is located at one end of the linkage arm 2 close to the drive shaft 11 .

[0048] In this embodiment, the reset elastic member 22 in the valve body assembly is elastically connected to the seal 3 and the linkage arm 2, and is located at one end of the linkage arm 2 close to the drive shaft 11. Specifically, the reset elastic member 22 can be designed as a spring, one end of which is connected to the seal 3 and the other end is connected to the linkage arm 2. When the linkage arm 2 moves under the action of the drive shaft 11, the spring provides the necessary elastic force to reset the seal 3 and keep the air release valve 100 in an open state. The design of this spring-type reset elastic member 22 is simple and easy to install and maintain. The reset elastic member 22 can also be designed as a rubber elastic element, which uses the elastic deformation characteristics of rubber to achieve the reset function. One end of the rubber elastic element is fixed on the seal 3, and the other end is fixed on the linkage arm 2. When the linkage arm 2 moves, the rubber elastic element is deformed, and the seal 3 is pushed to reset when the deformation is released. This design can provide a stable reset force while reducing noise and vibration. The use of the reset elastic member 22 ensures the accurate reset of the seal 3 in the dynamic process and improves the reliability of the reset of the seal 3. Since the reset elastic member 22 is simple in design and easy to maintain, the maintenance cost and replacement frequency in long-term operation can be reduced. The addition of the reset elastic member 22 enhances the durability of the entire valve body assembly and prolongs its service life, especially in applications where the valve is frequently opened and closed. The use of elastic materials such as rubber can effectively absorb vibration and reduce noise, thereby improving the working environment.

[0049] In one embodiment of the present invention, see Figure 3 A limiting platform 23 is protrudingly provided on the inner wall of the second air flow channel 2 a , and the limiting platform 23 is located at one end of the linkage arm 2 close to the driving shaft 11 .

[0050] In one embodiment, the inner wall of the second airflow channel 2a is provided with a stopper 23, and the stopper 23 is located at one end of the linkage arm 2 close to the drive shaft 11. Specifically, the stopper 23 can be designed as a raised cylindrical or hemispherical structure, which is directly protruded on the inner wall of the second airflow channel 2a. This design is simple and easy to process, and is suitable for occasions where a fixed position is required to limit the movement of the linkage arm 2. The stopper 23 can also be designed as a groove on the inner wall, which matches the raised portion on the linkage arm 2 to achieve the positioning of the linkage arm 2 in the airflow channel. This design is suitable for complex structures that need to limit the movement of the linkage arm 2 in a specific path. The design of the stopper 23 can ensure that the linkage arm 2 is accurately positioned in the second airflow channel 2a, and prevent the improper movement of the linkage arm 2 from affecting the sealing effect of the seal 3. The use of the stopper 23 improves the stability of the linkage arm 2 in the airflow channel, reduces the displacement of the linkage arm 2 caused by vibration or impact, and thus improves the working stability of the entire valve body assembly. The design of the limiting platform 23 reduces the direct friction between the linkage arm 2 and the inner wall of the airflow channel, thereby extending the service life of the linkage arm 2 and the airflow channel.

[0051] The present invention also provides an integrated valve type vacuum pump 200, see Figure 5 and Figure 6 The integrated valve vacuum pump 200 includes an air extraction component 4, a housing 5, a rotating shaft 6 and an air release valve 100. The specific structure of the air release valve 100 refers to the above embodiment. Since the integrated valve vacuum pump 200 adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here. Among them, the rotating shaft 6 is located in the air cavity 5a, the housing 5 is provided with a connecting channel 5b connected to the breast pump, the driving motor 1 can drive the rotating shaft 6 to rotate and drive the air extraction component 4 through the rotating shaft 6 to form a negative pressure space in the air cavity 5a, the two ends of the driving shaft 11 are respectively connected to the rotating shaft 6 and the linkage arm 2, and the air cavity 5a is connected to the second air flow channel 2a, the first air flow channel 1a and the outside world in sequence.

[0052] In this embodiment, the integrated valve vacuum pump 200 combines all the technical solutions in the above embodiments, specifically including an air extraction component 4, a housing 5, a rotating shaft 6 and a deflation valve 100. An air cavity 5a is formed in the housing 5, the rotating shaft 6 is located in the air cavity 5a, and the housing 5 is provided with a connecting channel 5b connected to the breast pump. The driving motor 1 can drive the rotating shaft 6 to rotate, and drive the air extraction component 4 through the rotating shaft 6 to form a negative pressure space in the air cavity 5a. The two ends of the driving shaft 11 are respectively connected to the rotating shaft 6 and the linkage arm 2, and the air cavity 5a is connected to the second air flow channel 2a, the first air flow channel 1a and the outside world in turn. Specifically, the housing 5 is made of aluminum alloy or plastic material, and the air cavity 5a is formed by precision machining. The rotating shaft 6 is made of stainless steel, and the surface is specially treated to reduce friction and improve corrosion resistance. The driving motor 1 is a brushless motor to improve efficiency and life. The linkage arm 2 and the seal 3 of the deflation valve 100 are made of high-strength plastic to ensure durability and cost-effectiveness. The design of the integrated valve vacuum pump 200 integrates key components such as the exhaust assembly 4 and the air release valve 100 into a housing 5, which improves the overall integration, reduces the number of external connections and components, and simplifies the system design. Due to the integrated design, the space occupied is reduced, making the vacuum pump smaller in size and lighter in weight, which is convenient to carry and use. The drive motor 1 directly drives the shaft 6 and the linkage arm 2, reducing the transmission links and improving the response speed and control accuracy. The integrated design makes it more convenient to maintain and replace parts, especially the air release valve 100 part, which can be quickly disassembled and replaced, reducing maintenance costs.

[0053] The present invention further provides a breast pump, comprising a suction cup connected to an air cavity 5a with an integrated valve vacuum pump 200; and a milk storage container for storing milk sucked out by the suction cup.

[0054] In one embodiment, the core components of the breast pump are an integrated valve vacuum pump 200, a suction cup connected to the air cavity 5a, and a milk storage container for storing the milk sucked out by the suction cup. The integrated valve vacuum pump 200 is designed according to the above-mentioned embodiment and has structures such as an air extraction component 4, a housing 5, a rotating shaft 6 and an air release valve 100. The suction cup is designed to fit closely with the breast to achieve effective milk suction. The milk storage container is designed to collect and store the milk sucked out from the breast. The design of the integrated valve vacuum pump 200 provides a stable and adjustable negative pressure, so that the breast pump can effectively suck out the milk from the breast. The soft material and adjustable design of the suction cup improve the user's comfort and reduce the discomfort during use. The leak-proof design and easy-to-clean characteristics of the milk storage container make milk storage and subsequent processing more convenient. The food-grade plastic milk storage container ensures the hygiene and safety of the milk and is suitable for infant consumption. The detachable milk storage container design allows the user to easily replace the container, reducing the maintenance cost in long-term use. The direct connection design between the integrated valve vacuum pump 200 and the suction cup simplifies the structure of the breast pump, reduces the number of components, and improves the overall stability and reliability.

[0055] The above are only exemplary embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A deflation valve, characterized in that: include: A housing (5), wherein an air cavity (5a) capable of generating negative pressure is formed in the housing (5); a drive motor (1), the drive motor (1) being connected to the housing (5), the drive motor (1) being located outside the housing (5), the drive motor (1) comprising a stator and a drive shaft (11) exposed at two ends of the stator, a first air flow channel (1a) being provided in the drive shaft (11), the first air flow channel (1a) penetrating the drive shaft (11) along the axial direction of the drive shaft (11), and the first air flow channel (1a) being connected to the air cavity; and A valve body assembly, the valve body assembly comprising a linkage arm (2) and a sealing member (3), the linkage arm (2) being connected to the drive shaft (11), the linkage arm (2) being provided with a second air flow channel (2a) connecting the first air flow channel (1a) with the outside; the sealing member (3) being movably arranged in the second air flow channel (2a); The drive motor (1) drives the drive shaft (11) to rotate, thereby driving the linkage arm (2) to rotate, so that the sealing component (3) blocks the connection between the second airflow channel (2a) and the outside world.

2. The air release valve according to claim 1, characterized in that: The valve body assembly further comprises a stopper (21), the stopper (21) being connected to the linkage arm (2), the stopper (21) being provided with an air leakage hole (21a) connecting the second air flow channel (2a) with the outside, and the stopper (21) being located at one end of the linkage arm (2) away from the drive shaft (11).

3. The air release valve according to claim 2, characterized in that: A stop surface (211) is formed at one end of the stopper (21) close to the sealing member (3), and the stop surface (211) is located at the periphery of the air leakage hole (21a). A sealing surface (31) that cooperates with the stop surface (211) is formed at one end of the sealing member (3) close to the stopper (21).

4. The air release valve according to claim 3, characterized in that: The stop surface (211) is an arc surface, the sealing element (3) is a sphere, the radius of the sphere is smaller than the radius of the arc surface, and the radius of the sphere is larger than the radius of the air leakage hole.

5. The air release valve according to any one of claims 2 to 4, characterized in that: The valve body assembly comprises a plurality of the sealing members (3) and a plurality of the stop members (21); a plurality of the second air flow channels (2a) interconnected with each other are provided in the linkage arm (2); each of the sealing members (3) is movably arranged in a second air flow channel (2a); each of the stop members (21) is connected to the linkage arm (2) and is located at one end of the second air flow channel (2a) away from the drive shaft (11).

6. The air release valve according to claim 5, characterized in that: Each of the stoppers (21) is connected to an adjacent stopper (21).

7. The air release valve according to claim 5, characterized in that: Each of the sealing components (3) is a magnetic component (32), and the sealing components (3) are magnetically connected.

8. The air release valve according to any one of claims 1 to 4, characterized in that: The valve body assembly further comprises a reset elastic member (22), wherein the reset elastic member (22) is elastically connected to the sealing member (3) and the linkage arm (2), and the reset elastic member (22) is located at one end of the linkage arm (2) close to the drive shaft (11).

9. The air release valve according to any one of claims 1 to 4, characterized in that: A limiting platform (23) is protrudingly provided on the inner wall of the second air flow channel (2a), and the limiting platform (23) is located at one end of the linkage arm (2) close to the driving shaft (11).

10. An integrated valve vacuum pump, characterized in that: The integrated valve vacuum pump comprises an exhaust assembly (4), a rotating shaft (6) and an exhaust valve as claimed in any one of claims 1 to 7; the rotating shaft (6) is located in the air cavity (5a), the shell (5) is provided with a connecting channel (5b) connected to the breast pump, the driving motor (1) can drive the rotating shaft (6) to rotate and drive the exhaust assembly (4) through the rotating shaft (6) to form a negative pressure space in the air cavity (5a), the two ends of the driving shaft (11) are respectively connected to the rotating shaft (6) and the linkage arm (2), and the air cavity (5a) is connected to the second air flow channel (2a), the first air flow channel (1a) and the outside in sequence.

11. A breast pump, characterized in that: comprising the integrated valve vacuum pump as claimed in claim 8; a suction cup communicated with the air cavity (5a); and A milk storage container is used to store the milk sucked out by the suction cup.

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