CN119838074A

CN119838074A - Negative pressure anti-leakage wearable breast pump based on dynamic self-stabilization and use method

Info

Publication number: CN119838074A
Application number: CN202510330644.5A
Authority: CN
Inventors: 陈剑彪; 陈昌鑫
Original assignee: Guangdong Horigen Mother & Baby Products Co ltd
Current assignee: Guangdong Horigen Mother & Baby Products Co ltd
Priority date: 2025-03-20
Filing date: 2025-03-20
Publication date: 2025-04-18
Anticipated expiration: 2045-03-20
Also published as: CN119838074B

Abstract

The invention relates to the technical field of mother and infant products, in particular to a negative pressure leakage-proof wearable breast pump based on dynamic self-stabilization and a use method thereof, comprising an outer cover body, an inner cover and a self-locking negative pressure maintaining mechanism, wherein the outer cover body is provided with a pressure regulating hole, and the self-locking negative pressure maintaining mechanism comprises a regulating channel, an automatic switching structure, a self-locking structure, a pressure regulating structure and an air pressure sensor; the tuning channel comprises a main channel; the automatic switch structure is arranged at one end of the main channel, which is close to the outer cover body; the self-locking structure is arranged at the middle position inside the main channel and is used for isolating the main channel, the pressure regulating structure is arranged at one end of the main channel far away from the outer cover body and is used for regulating the air pressure between the outer cover body and the inner cover body, the air pressure sensor is arranged at one end of the main channel connected with the pressure regulating hole, and the self-locking negative pressure maintaining mechanism is arranged, so that the dynamic regulation of the air pressure of the closed space is realized, and the breast shield is ensured to be continuously and stably adsorbed on the breasts of a puerpera.

Description

Negative pressure anti-leakage wearable breast pump based on dynamic self-stabilization and use method

Technical Field

The invention relates to the technical field of mother and infant products, in particular to a negative pressure anti-leakage wearable breast pump based on dynamic self-stabilization, and also relates to a use method of the negative pressure anti-leakage wearable breast pump based on dynamic self-stabilization.

Background

In modern childcare, breast feeding is favored for its multiple benefits to infant health. However, for many new mothers, manual milking or use of traditional breast pumps is often accompanied by numerous inconveniences and challenges, such as inefficiency in pumping, discomfort to the breast, and leakage of milk. In order to solve these problems, various wearable breast pumps are appeared on the market, and the purpose is to provide a more convenient and efficient breast sucking experience. While existing wearable breast pumps alleviate the burden on new mothers to some extent, they still suffer from some significant drawbacks.

The patent with the bulletin number of CN221771013U discloses a split type wearable breast pump, which provides a lining cover which can be detachably arranged on the inner side of a horn-shaped breast pump through optimizing the structural design of the breast pump, can be embedded into the breast pump according to the actual condition of the breast form of a user, and the thin opening end of the lining cover synchronously seals the through hole of the thin opening end of the breast pump when being embedded, so that the sealing performance of the breast pump during negative pressure adsorption is ensured while the front end of the breast pump is covered more tightly, the milk leakage condition during milk suction can be reduced, and the use experience of the user is optimized.

Although the suction cup cover and the breast-sucking cover are used for absorbing negative pressure on the breasts of the puerpera, when a user moves or uses the breast-sucking cover to change the gesture, a gap can be formed between the breast-sucking cover and the skin, so that external air enters the breast-sucking cover, the air pressure in the breast-sucking cover is increased, the absorption effect is weakened, and at the moment, the user is required to manually discharge the air in the breast-sucking cover, and the absorption capacity of the breast-sucking cover is restored.

Disclosure of Invention

To above-mentioned problem provides a prevent leaking wearable breast pump based on developments are from steady negative pressure, through setting up self-locking negative pressure maintenance mechanism to realize the dynamic adjustment to enclosure space atmospheric pressure, ensure that the brassiere is adsorbed on lying-in woman's breast constantly steadily, effectively prevent to leak, promote and inhale milk efficiency and comfort level.

The invention provides a dynamic self-stabilizing negative pressure leakage-proof wearable breast pump, which comprises an outer cover body and an inner cover body which are integrally formed, wherein a pressure regulating hole is formed in the outer cover body, a lining cover communicated with the breast pump body is arranged in the inner cover body, a self-locking negative pressure maintaining mechanism is arranged on the pressure regulating hole and comprises a regulating channel, an automatic switching structure, a self-locking structure, a pressure regulating structure and an air pressure sensor, the regulating channel comprises a main channel communicated with the pressure regulating hole, the automatic switching structure is arranged at one end of the main channel close to the outer cover body, when the air pressure between the outer cover body and the inner cover body needs to be regulated, the automatic switching structure is in an open state, the self-locking structure is arranged in the middle position in the main channel and used for isolating the main channel, the self-locking structure is arranged at one end of the main channel far away from the outer cover body and used for regulating the air pressure between the outer cover body and the inner cover body, and the air pressure sensor is arranged at one end of the main channel connected with the pressure regulating hole.

Preferably, the automatic switch structure comprises a valve shell connected with the main channel and a valve core arranged in the valve shell, wherein a first air exchanging channel and a second air exchanging channel are respectively arranged at the upper half part and the lower half part of the inner wall of the valve shell, the valve core is positioned between the first air exchanging channel and the second air exchanging channel, and the peripheral wall of the valve core is in butt joint with the inner wall of the valve shell.

Preferably, the automatic switch structure further comprises a first control component for controlling the valve core to move, when the adsorption effect needs to be enhanced, the first control component controls the valve core to be in butt joint with the first ventilation channel, and when the adsorption effect needs to be weakened, the first control component controls the valve core to be in butt joint with the second ventilation channel.

Preferably, the automatic switch structure further comprises a positioning ring arranged on the inner wall of the valve casing, the positioning ring is positioned between the first ventilation channel and the second ventilation channel, and an annular groove matched with the positioning ring is formed in the peripheral wall of the valve core.

Preferably, the self-locking structure comprises a conical cover, a partition block and a second control assembly, wherein a ventilation window is formed in the side wall of the conical cover, the partition block is coaxially arranged in the conical cover and is matched with the inner cavity of the conical cover, and the second control assembly is used for controlling the partition block to move along the axis of the conical cover.

Preferably, the second control assembly comprises a connecting rod and two magnetic rings, wherein one end of the connecting rod is connected with the partition block, the other end of the connecting rod extends out of the end part of the conical cover and is movably connected with the conical cover, one magnetic ring is fixed at the end part of the conical cover and penetrates through the connecting rod, and the other magnetic ring is fixed at the end part of the connecting rod extending out of the conical cover.

Preferably, the second control assembly further comprises a second spring sleeved on the connecting rod and located between the two magnetic rings, and two ends of the second spring are respectively abutted with the end part of the conical cover and the end part of the connecting rod.

Preferably, the pressure regulating structure comprises a cover body, a mounting bin and a pressure regulating assembly, wherein the cover body is fixedly connected with the main channel, the cover body is provided with a plurality of pressure regulating holes, the mounting bin is fixedly connected with the cover body, the side wall of the mounting bin is provided with a heat dissipation hole, the pressure regulating assembly is arranged in the mounting bin, and the pressure regulating assembly is used for regulating the air flow direction in the main channel.

Preferably, the adjustment channel further comprises a support assembly disposed over the pressure adjustment aperture, and the main channel is mounted on the support assembly.

The application method of the negative pressure anti-leakage wearable breast pump based on dynamic self-stabilization is applied to the negative pressure anti-leakage wearable breast pump based on dynamic self-stabilization, and comprises the following steps of:

s1, firstly, clamping a lining cover into the inner cover body;

S2, covering the outer cover body and the inner cover body on breasts of puerpera, opening the self-locking structure, pressing the outer cover body, discharging air between the outer cover body and the inner cover body from the main channel, and closing the self-locking structure;

S3, when the air pressure sensor detects that the air pressure between the outer cover body and the inner cover body is increased, the self-locking structure is opened again, the pressure regulating structure continuously discharges part of air in the outer cover body and the inner cover body, and at the moment, the automatic switch structure is opened;

S4, after the air pressure between the outer cover body and the inner cover body is adjusted, the self-locking structure, the pressure adjusting structure and the automatic switch structure are sequentially closed.

Compared with the prior art, the invention has the beneficial effects that:

1. The automatic pressure regulating structure and the air pressure sensor are arranged, the automatic pressure regulating structure and the self-locking structure cooperate to realize accurate control of the main channel, when air pressure needs to be regulated, the automatic pressure regulating structure is opened to allow air to circulate, and after the air pressure is stabilized, the self-locking structure cuts off the main channel to prevent external air from flowing back, the air pressure in the enclosed space is maintained to be stable, the air pressure regulating structure further enhances the flexibility of air pressure regulation, when the air pressure sensor detects air pressure fluctuation, the air pressure in the enclosed space can be balanced by the air pressure regulating structure through regulating the air pressure in the main channel, the inner liner cover is ensured to be always tightly attached to the breasts of a lying-in woman, and the automatic pressure regulating structure, the self-locking structure and the air pressure regulating structure cooperate to realize dynamic regulation of the air pressure in the enclosed space, ensure that the inner liner cover is continuously and stably adsorbed on the breasts of the lying-in woman, thereby effectively preventing leakage and improving the milk sucking efficiency and comfort;

2. The invention is provided with the valve shell and the valve core, the first air exchanging channel on the inner wall of the valve shell is used for reducing the air pressure in the closed space in the initial stage, so that the lining cover can be closely adsorbed on the breasts of a puerpera, once the air pressure reaches an equilibrium state, the valve core is reset and is closely attached to the inner wall of the valve shell, the backflow of external air is effectively prevented, and the second air exchanging channel on the inner wall of the valve shell is used for improving the air pressure in the closed space when the milk sucking process is finished, so that the breast pump is convenient to take down easily;

3. When the adsorption effect needs to be enhanced, the first control component controls the valve core to be in butt joint with the first air exchange channel, so that air in the closed space is allowed to flow out, the air pressure is reduced, the adsorption force of the lining cover on breasts of a puerpera is enhanced, when the adsorption effect needs to be weakened, the pressure regulating structure supplies air to the closed space to improve the air pressure, the first control component controls the valve core to be in butt joint with the second air exchange channel, so that the air in the main channel is allowed to flow into the closed space, the adsorption force is weakened, the breast pump is convenient to take down, the energy is stored and released through the first control component, the efficient resetting of the valve core is realized, and the service efficiency of the breast pump is improved.

Drawings

FIG. 1 is a perspective view of a dynamic self-stabilizing negative pressure leakage-proof wearable breast pump of the present invention;

FIG. 2 is a front view of an outer casing, an inner casing and a self-locking negative pressure maintenance mechanism in a negative pressure anti-leakage wearable breast pump based on dynamic self-stabilization of the present invention;

FIG. 3 is a perspective cross-sectional view at A-A in FIG. 2;

FIG. 4 is a partial enlarged view at B in FIG. 3;

FIG. 5 is a perspective view of a valve housing, valve core and first control assembly of the negative pressure leak-proof wearable breast pump based on dynamic self-stabilization of the present invention;

FIG. 6 is a perspective view II of a valve housing, valve core and first control assembly of a negative pressure leak-proof wearable breast pump based on dynamic self-stabilization according to the present invention;

FIG. 7 is a perspective view of a valve housing, valve core and retaining ring in a negative pressure leak-proof wearable breast pump based on dynamic self-stabilization in accordance with the present invention;

FIG. 8 is a perspective view of a self-locking structure in a negative pressure leakage-proof wearable breast pump based on dynamic self-stabilization of the present invention;

FIG. 9 is a perspective view of a negative pressure leakage-proof wearable breast pump based on dynamic self-stabilization and a second control assembly of the present invention;

FIG. 10 is a perspective view of a pressure regulating structure in a negative pressure leakage-proof wearable breast pump based on dynamic self-stabilization according to the present invention;

FIG. 11 is a perspective view of a mounting cartridge and pressure regulating assembly in a negative pressure leak-proof wearable breast pump based on dynamic self-stabilization in accordance with the present invention;

FIG. 12 is a perspective view of the main channel and support assembly of the negative pressure leak-proof wearable breast pump based on dynamic self-stabilization of the present invention.

The reference number in the figure is 1, the outer cover body; 11, a pressure regulating hole, 2, an inner cover body, 3, an inner cover, 4, a self-locking negative pressure maintaining mechanism, 41, an adjusting channel, 411, a main channel, 412, a supporting component, 4121, a supporting seat, 4122, a base, 42, an automatic switching structure, 421, a valve shell, 4211, a first air exchanging channel, 4212, a second air exchanging channel, 422, a valve core, 4221, an annular groove, 423, a first control component, 4231, a guide rod, 4232, a first spring, 424, a positioning ring, 43, a self-locking structure, 431, a conical cover, 4311, a ventilation window, 432, a partition block, 433, a second control component, 4331, a connecting rod, 4332, a magnetic ring, 4333, a second spring, 44, a pressure regulating structure, 441, a cover body, 442, an installation bin, 443, a pressure regulating component, 4431, a motor, 4432, a pressure regulating fan, 45 and a pressure sensor.

Detailed Description

The invention will be further described in detail with reference to the drawings and the detailed description below, in order to further understand the features and technical means of the invention and the specific objects and functions achieved.

Referring to fig. 1 to 12, the negative pressure leakage-proof wearable breast pump based on dynamic self stabilization comprises an outer cover body 1 and an inner cover body 2 which are integrally formed, wherein the outer cover body 1 is provided with a pressure regulating hole 11, the inner cover body 2 is internally provided with a lining cover 3 communicated with a breast pump body, the pressure regulating hole 11 is provided with a self-locking negative pressure maintaining mechanism 4, the self-locking negative pressure maintaining mechanism 4 comprises a regulating channel 41, an automatic switching structure 42, a self-locking structure 43, a pressure regulating structure 44 and an air pressure sensor 45, the regulating channel 41 comprises a main channel 411 communicated with the pressure regulating hole 11, the automatic switching structure 42 is arranged at one end of the main channel 411 close to the outer cover body 1, when air pressure between the outer cover body 1 and the inner cover body 2 needs to be regulated, the automatic switching structure 42 is in an open state, the self-locking structure 43 is arranged at the middle position inside the main channel 411, the self-locking structure 43 is used for isolating the main channel 411, the pressure regulating structure 44 is arranged at one end of the main channel 411 far from the outer cover body 1, the pressure regulating structure 44 is used for regulating the air pressure between the outer cover body 1 and the inner cover body 2, and the air pressure sensor 45 is arranged at one end of the main channel 411, which is connected with the air pressure sensor 11.

Firstly, the inner liner cover 3 is installed in the inner cover 2, then the outer cover 1 and the inner cover 2 are covered on breasts of puerpera, a closed space is formed outside the outer cover 1, the inner cover 2 and the skin of puerpera, when puerpera presses the outer cover 1, the self-locking structure 43 keeps on, air is allowed to be discharged through the automatic switching structure 42, the air pressure in the closed space is reduced until the inner liner cover 3 is adsorbed on the breasts, then the self-locking structure 43 and the automatic switching structure 42 are closed, external air backflow is effectively prevented, if gaps are generated between the outer cover 1 and the skin due to puerpera activities, the external air possibly permeates into the closed space, air pressure fluctuation is caused, when the air pressure sensor 45 detects that the air pressure is changed, the pressure regulating structure 44 is started first, the self-locking structure 43 is restarted, the air in the main channel 411 is discharged until the air pressure in the main channel 411 is lower than the air pressure in the closed space, at the moment, the automatic switching structure 42 is opened again, the redundant air in the closed space is allowed to flow out until the air pressure reaches a preset value, then the self-locking structure 43 and the automatic switching structure 42 are closed again, the air pressure is kept constant again, the reciprocating automatic switching structure 42 and the air pressure is closed again, the air pressure is effectively prevented from flowing back and the air pressure is continuously constant, the air pressure is continuously regulated on the breast, the self-locking structure 43 and the air pressure is stably adsorbed on the breasts, and the air pressure is stably and stable on the breast, and the air pressure is continuously and stable, and the air pressure is matched and the air pressure is absorbed by the air pressure in the breast.

Referring to fig. 4 and 5, the automatic opening and closing structure 42 includes a valve housing 421 connected to a main passage 411 and a valve body 422 provided inside the valve housing 421, a first ventilation duct 4211 and a second ventilation duct 4212 are provided at an upper half and a lower half of an inner wall of the valve housing 421, respectively, and the valve body 422 is positioned between the first ventilation duct 4211 and the second ventilation duct 4212, and a peripheral wall of the valve body 422 abuts against an inner wall of the valve housing 421.

When the outer cover 1 and the inner cover 2 are tightly attached to breasts of puerpera to form a closed space, air in the closed space is squeezed to generate a force towards the middle of the main channel 411, the force pushes the valve core 422 to move, the peripheral wall of the valve core 422 moves to the first air exchanging channel 4211 of the inner wall of the valve housing 421, a gap is generated between the valve core 422 and the inner wall of the valve housing 421, air in the closed space flows into the main channel 411 through the first air exchanging channel 4211 to reduce air pressure, once the inner cover 3 is stably attached to breasts, the air pressure in the closed space reaches an equilibrium state, at the moment, the valve core 422 is reset between the first air exchanging channel 4211 and the second air exchanging channel 4212 and is tightly attached to the inner wall of the valve housing 421, the automatic switch structure 42 is closed to effectively prevent external air from flowing back, a negative pressure state is maintained, when the breast pump needs to be removed, the pressure regulating structure 44 starts working to provide air to the closed space, the air in the main channel 411 is caused to gradually rise, the air in the main channel 411 generates a force towards the main channel 411, the air in the closed space moves to the second air exchanging channel 4212, the air in the main channel 422 is pushed to the second air exchanging channel 4212, the air pressure in the main channel 422 is easily reaches the air exchanging channel 4212, and the air pressure in the second air exchanging channel 4212 is easily generated from the inner channel 421, and the inner wall of the main channel 421 is easily removed from the air channel is located in the gap of the main channel, and the position of the air channel is located in the position of the air channel is located between the position, and is located between a position, and is located.

Referring to fig. 4, 5 and 6, the automatically opening and closing structure 42 further includes a first control assembly 423 for controlling the movement of the valve core 422, wherein the first control assembly 423 controls the valve core 422 to be in butt joint with the first ventilation duct 4211 when the adsorption effect needs to be enhanced, and the first control assembly 423 controls the valve core 422 to be in butt joint with the second ventilation duct 4212 when the adsorption effect needs to be reduced.

Specifically, the first control assembly 423 includes a guide rod 4231 and two first springs 4232, two ends of the guide rod 4231 are connected with two ends of the valve casing 421, the valve core 422 is movably mounted on the guide rod 4231, the two first springs 4232 are respectively sleeved at two ends of the guide rod 4231, and two ends of the first springs 4232 are respectively connected with ends of the valve core 422 and the valve casing 421.

In the working process, when the air pressure in the closed space rises and applies a force to the valve core 422 to drive the valve core 422 to move towards the first air exchanging channel 4211, the valve core 422 compresses the first spring 4232 close to one side of the first air exchanging channel 4211, the first spring 4232 stores elastic potential energy in the compressed process, once the lining cover 3 is successfully adsorbed on the breasts of a parturient, the first spring 4232 immediately releases the stored potential energy to push the valve core 422 to return to the initial position, namely between the first air exchanging channel 4211 and the second air exchanging channel 4212, so as to close the air exchanging channel, thereby maintaining stable adsorption effect, on the contrary, when the adsorption effect needs to be weakened, for example, when the lining cover 3 is removed, the pressure regulating structure 44 supplies air to the closed space, so as to lead the air pressure in the main channel 411 to rise, and generates a force towards the second air exchanging channel 4212 to drive the valve core 422 to move and compress the first spring 4232 close to one side of the closed space, and likewise, the first spring 4232 stores elastic potential energy in the compressed process, after the lining cover 3 is removed, the first spring 4232 is pushed to release the first spring 422, so as to release the potential energy to prepare the valve core 422 for the return by the first air exchanging channel, thereby realizing high energy release and energy release by the first valve core 423.

Referring to fig. 4 and 7, the automatic opening and closing structure 42 further includes a positioning ring 424 disposed on an inner wall of the valve housing 421, and the positioning ring 424 is located between the first air exchanging channel 4211 and the second air exchanging channel 4212, and an annular groove 4221 matching with the positioning ring 424 is formed on a peripheral wall of the valve core 422.

In the working process, when the first spring 4232 near the first air exchange channel 4211 releases the stored elastic potential energy and pushes the valve core 422 to move towards the initial position, the valve core 422 may apply a force to the first spring 4232 on the second air exchange channel 4212 side temporarily due to inertia action, which may cause the first spring 4232 on the second air exchange channel 4212 side to be compressed, then the first spring 4232 releases the elastic potential energy and pushes the valve core 422 to move towards the opposite direction, so that the valve core 422 generates reciprocating vibration between the two first springs 4232, therefore, a positioning ring 424 is arranged on the inner wall of the valve housing 421, an annular groove 4221 is arranged on the peripheral wall of the valve core 422, in the initial state, the annular groove 4221 on the valve core 422 is clamped on the positioning ring 424, a stable supporting point is formed, when the valve core 422 is moved due to the action of external force, but once the valve core 4221 approaches to the initial position, the first spring 4232 pushes the valve core 422 to be clamped into the positioning ring 424 again, the annular groove 4221 is stopped rapidly, and resistance force is generated between the positioning ring 424 and the valve core 422 is stopped rapidly, and the resistance force is stopped continuously due to the inertia force generated between the positioning ring 4221 and the annular groove 4221.

Referring to fig. 4 and 8, the self-locking structure 43 includes a conical cover 431, a partition block 432 and a second control component 433, wherein a ventilation window 4311 is formed on a sidewall of the conical cover 431, the partition block 432 is coaxially disposed inside the conical cover 431, the partition block 432 is matched with an inner cavity of the conical cover 431, and the second control component 433 is used for controlling the partition block 432 to move along an axis of the conical cover 431.

Under the condition that the self-locking structure 43 is not arranged, before the pressure regulating structure 44 is started, the valve core 422 is in a stress balance state, after the pressure regulating structure 44 is started, air in the main channel 411 is discharged, the air pressure in the main channel 411 is reduced, the stress on two sides of the valve core 422 is unbalanced, the stress on one side of the valve core 422 towards the main channel 411 is reduced, the valve core 422 moves towards the first ventilation channel 4211, the reduction of the air pressure in the main channel 411 is a continuous process, the condition that the air pressure on one side of the valve core 422 towards the main channel 411 is higher than the air pressure on the other side of the valve core 422 still exists in the process, the air in the main channel 411 flows to a closed space, the air pressure in the closed space is further increased, the adsorption effect is weakened, therefore, the self-locking structure 43 is arranged between the automatic switch structure 42 and the pressure regulating structure 44, when the air pressure in the closed space needs to be reduced, the self-locking structure 43 separates the main channel 411 into two independent areas, the pressure regulating structure 44 is started, the air on one side of the self-locking structure 43 is extracted, the two sides of the self-locking structure 43 form a large pressure difference, then the second control component 433 is activated, the driving the separation block 432 and the conical cover 431 are separated, the situation that the air pressure is still exists, the air pressure on one side of the valve core 422 is higher than the other side of the air pressure is higher than the air pressure on the other side of the main channel 411, the air channel is required to flow to the closed, and the air pressure is reduced to the air pressure stable, and the air pressure is guaranteed, and the air pressure is stable and stable, and the air pressure is reduced, and the air pressure and is guaranteed, and the air pressure and stable.

Referring to fig. 8 and 9, the second control assembly 433 includes a connection rod 4331 and two magnetic rings 4332, one end of the connection rod 4331 is connected with the blocking block 432, the other end of the connection rod 4331 extends out of the end of the cone-shaped cover 431 and is movably connected with the cone-shaped cover 431, one magnetic ring 4332 is fixed at the end of the cone-shaped cover 431 and is penetrated by the connection rod 4331, and the other magnetic ring 4332 is fixed at the end of the connection rod 4331 extending out of the cone-shaped cover 431.

When the main channel 411 is required to be opened, reverse current is introduced to the two magnetic rings, under the action of electromagnetic attraction, the original moving magnetic rings pull or push the blocking blocks 432 to be separated from the conical cover 431 through the connecting rods 4331, so that the channel is opened, when one of the two magnetic rings 4332 is a permanent magnetic ring and the other magnetic ring is an electrified magnetic ring, the polarity of the electrified magnetic ring is adjusted to be the same as the polarity of the permanent magnetic ring when the main channel 411 is required to be closed, the connecting rods 4331 and the blocking blocks 432 are driven to move to the conical cover 431 and contact by the principle that the like magnetic poles repel each other, so that the sealing effect is achieved, when the main channel 411 is required to be opened, the polarity of the electrified magnetic ring is reversed, the polarity of the electrified magnetic ring is opposite to that of the permanent magnetic ring, the blocking blocks 432 are separated from the conical cover 431, and the polarity of the channel is quickly opened through the adjustment of the blocking blocks 431, and the sealing position of the channel is quickly opened, and the sealing position of the channel is realized.

Referring to fig. 8 and 9, the second control assembly 433 further includes a second spring 4333 sleeved on the connection rod 4331 and positioned between the two magnetic rings 4332, and both ends of the second spring 4333 are respectively abutted with the end of the cone-shaped cover 431 and the end of the connection rod 4331.

When the two magnetic rings 4332 are close to each other, if the positions of the two magnetic rings 4332 are not limited, the two magnetic rings 4332 may collide, so that the magnetic rings 4332 are damaged, and therefore, the second spring 4333 is arranged, under the action of the elastic force of the second spring 4333, a continuous acting force towards the conical cover 431 is applied to the partition block 432 through the connecting rod 4331, so that the partition block 432 and the conical cover 431 are ensured to keep in a contact state, and an effective closing of a channel is realized, and when the two magnetic rings 4332 need to be close to each other to open the channel, the second spring 4333 is gradually compressed, and the compression stroke of the second spring 4333 is limited, so that the minimum distance after the two magnetic rings 4332 are close to each other is limited, and the physical contact and collision between the two magnetic rings 4332 are effectively prevented.

Referring to fig. 4, 10 and 11, the pressure regulating structure 44 includes a cover body 441, a mounting bin 442 and a pressure regulating component 443, wherein the cover body 441 is fixedly connected with the main channel 411, the cover body 441 is provided with a plurality of pressure regulating holes, the mounting bin 442 is fixedly connected with the cover body 441, a side wall of the mounting bin 442 is provided with a heat dissipation hole, the pressure regulating component 443 is arranged in the mounting bin 442, and the pressure regulating component 443 is used for regulating the air flow direction in the main channel 411.

Specifically, the voltage regulating assembly 443 includes a motor 4431 and a voltage regulating fan 4432, the motor 4431 is disposed in the mounting bin 442, and an output shaft of the motor 4431 extends out of the mounting bin 442, and the voltage regulating fan 4432 is connected to an output shaft of the motor 4431.

When the air pressure of the enclosed space needs to be reduced, the motor 4431 starts and drives the pressure regulating fan 4432 to rotate clockwise, the rotation action of the pressure regulating fan 4432 generates a strong suction effect, air in the main channel 411 is pumped out, the air pressure in the main channel 411 is reduced, the air pressure difference enables the main channel 411 to form suction force to the interior of the enclosed space, the air pressure reduction is realized, conversely, if the air pressure of the enclosed space needs to be increased, the motor 4431 drives the pressure regulating fan 4432 to rotate anticlockwise, at the moment, the rotation of the pressure regulating fan 4432 sucks external air into the main channel 411, the air pressure in the main channel 411 is rapidly increased, and the air pressure in the enclosed space can also be rapidly increased, so that the air pressure of the enclosed space is rapidly regulated.

Referring to fig. 4 and 12, the adjustment channel 41 further includes a support assembly 412, the support assembly 412 being disposed on the pressure adjustment hole 11, and the main channel 411 being mounted on the support assembly 412.

Specifically, the support assembly 412 includes a support seat 4121 and a base 4122, the support seat 4121 is embedded in the pressure adjusting hole 11, the support seat 4121 is in interference fit with the pressure adjusting hole 11, the middle portion of the support seat 4121 has a flow channel, the base 4122 is fixed on the support seat 4121, and the main channel 411 is mounted on the base 4122.

The outer cover 1 is made of flexible materials, when the outer cover 1 is used, a user can squeeze air between the outer cover 1 and the inner cover 2, however, due to the flexible characteristic of the outer cover 1, the outer cover 1 deforms under stress, and a potential gap is possibly generated at the joint of the main channel 411 and the pressure adjusting hole 11, so that the supporting component 412 is arranged, the supporting seat 4121 in the supporting component 412 is tightly combined with the outer cover 1 through interference fit, a sealing interface is formed, the air is effectively prevented from entering a closed space through a tiny gap between the supporting seat 4121 and the outer cover 1, meanwhile, the base 4122 is connected with the supporting seat 4121, and the main channel 411 is fixedly connected with the base 4122, so that the supporting component 412 effectively prevents the air from leaking through the gap at the joint, and the air pressure stability in the closed space is maintained.

S1, firstly, clamping a lining cover 3 into the inner cover body 2;

s2, covering the outer cover 1 and the inner cover 2 on breasts of puerpera, opening the self-locking structure 43, pressing the outer cover 1, discharging air between the outer cover 1 and the inner cover 2 from the main channel 411, and closing the self-locking structure 43;

S3, when the air pressure sensor 45 detects that the air pressure between the outer cover 1 and the inner cover 2 is increased, the self-locking structure 43 is opened again, the pressure regulating structure 44 continuously discharges part of air in the outer cover 1 and the inner cover 2, and at the moment, the automatic switching structure 42 is opened;

s4, after the air pressure between the outer cover body 1 and the inner cover body 2 is regulated, the self-locking structure 43, the pressure regulating structure 44 and the automatic switch structure 42 are sequentially closed.

The foregoing examples merely illustrate one or more embodiments of the invention, which are described in greater detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of the invention should be assessed as that of the appended claims.

Claims

1. A negative pressure leak-proof wearable breast pump based on dynamic self-stabilization, comprising an outer cover body (1) and an inner cover body (2) formed in one piece, the outer cover body (1) being provided with a pressure regulating hole (11), the inner cover body (2) being provided with an inner lining cover (3) connected to a breast pump body, characterized in that a self-locking negative pressure maintaining mechanism (4) is provided on the pressure regulating hole (11), the self-locking negative pressure maintaining mechanism (4) comprising a regulating channel (41), an automatic switch structure (42), a self-locking structure (43), a pressure regulating structure (44) and an air pressure sensor (45); the regulating channel (41) comprising a main channel (411) connected to the pressure regulating hole (11); an automatic switch structure (42), a self-locking structure (43), a pressure regulating structure (44) and an air pressure sensor (45); the regulating channel (41) comprising a main channel (411) connected to the pressure regulating hole (11); and a pressure regulating mechanism (412) being provided on the inner cover body (2). The switch structure (42) is arranged at one end of the main channel (411) close to the outer cover body (1); when the air pressure between the outer cover body (1) and the inner cover body (2) needs to be adjusted, the automatic switch structure (42) is in an open state; the self-locking structure (43) is arranged at a middle position inside the main channel (411); the self-locking structure (43) is used to isolate the main channel (411); the pressure regulating structure (44) is arranged at one end of the main channel (411) away from the outer cover body (1); the pressure regulating structure (44) is used to adjust the air pressure between the outer cover body (1) and the inner cover body (2); and the air pressure sensor (45) is arranged at one end of the main channel (411) connected to the pressure regulating hole (11).

2. A negative pressure anti-leakage wearable breast pump based on dynamic self-stabilization according to claim 1, characterized in that the automatic switch structure (42) comprises a valve housing (421) connected to the main channel (411) and a valve core (422) arranged inside the valve housing (421); the upper half and the lower half of the inner wall of the valve housing (421) are respectively provided with a first ventilation channel (4211) and a second ventilation channel (4212); the valve core (422) is located between the first ventilation channel (4211) and the second ventilation channel (4212), and the peripheral wall of the valve core (422) abuts against the inner wall of the valve housing (421).

3. A wearable breast pump with negative pressure and leakage prevention based on dynamic self-stabilization according to claim 2, characterized in that the automatic switch structure (42) further comprises a first control component (423) for controlling the movement of the valve core (422); when the adsorption effect needs to be enhanced, the first control component (423) controls the valve core (422) to connect with the first ventilation channel (4211); when the adsorption effect needs to be weakened, the first control component (423) controls the valve core (422) to connect with the second ventilation channel (4212).

4. A wearable breast pump with negative pressure and leakage prevention based on dynamic self-stabilization according to claim 2, characterized in that the automatic switch structure (42) further comprises a positioning ring (424) arranged on the inner wall of the valve housing (421), and the positioning ring (424) is located between the first ventilation channel (4211) and the second ventilation channel (4212), and an annular groove (4221) cooperating with the positioning ring (424) is provided on the peripheral wall of the valve core (422).

5. A negative pressure anti-leakage wearable breast pump based on dynamic self-stabilization according to claim 1, characterized in that the self-locking structure (43) comprises a conical cover (431), a partition block (432) and a second control component (433); a ventilation window (4311) is provided on the side wall of the conical cover (431); the partition block (432) is coaxially arranged inside the conical cover (431), and the partition block (432) is consistent with the inner cavity of the conical cover (431); the second control component (433) is used to control the partition block (432) to move along the axis of the conical cover (431).

6. A negative pressure anti-leakage wearable breast pump based on dynamic self-stabilization according to claim 5, characterized in that the second control component (433) comprises a connecting rod (4331) and two magnetic rings (4332); one end of the connecting rod (4331) is connected to the partition block (432), and the other end of the connecting rod (4331) extends out of the end of the conical cover (431) and is movably connected to the conical cover (431); one magnetic ring (4332) is fixed to the end of the conical cover (431) and passed through by the connecting rod (4331), and the other magnetic ring (4332) is fixed to the end of the connecting rod (4331) extending out of the conical cover (431).

7. A negative pressure anti-leakage wearable breast pump based on dynamic self-stabilization according to claim 6, characterized in that the second control component (433) further comprises a second spring (4333) sleeved on the connecting rod (4331) and located between the two magnetic rings (4332), and the two ends of the second spring (4333) are respectively in contact with the end of the conical cover (431) and the end of the connecting rod (4331).

8.A wearable breast pump with negative pressure and leakage prevention based on dynamic self-stabilization according to claim 1, characterized in that the pressure regulating structure (44) comprises a cover body (441), a mounting chamber (442) and a pressure regulating assembly (443); the cover body (441) is fixedly connected to the main channel (411), and the cover body (441) is provided with a plurality of pressure regulating holes; the mounting chamber (442) is fixedly connected to the cover body (441), and a heat dissipation hole is provided on the side wall of the mounting chamber (442); the pressure regulating assembly (443) is arranged in the mounting chamber (442), and the pressure regulating assembly (443) is used to adjust the airflow direction in the main channel (411).

9. A negative pressure anti-leakage wearable breast pump based on dynamic self-stabilization according to claim 1, characterized in that the regulating channel (41) further comprises a supporting component (412), the supporting component (412) is arranged on the pressure regulating hole (11), and the main channel (411) is installed on the supporting component (412).

10. A method for using a negative pressure anti-leakage wearable breast pump based on dynamic self-stabilization, applied to a negative pressure anti-leakage wearable breast pump based on dynamic self-stabilization according to any one of claims 1 to 9, characterized in that it comprises the following steps:

S1, first insert the inner lining cover (3) into the inner cover body (2);

S2, the outer cover body (1) and the inner cover body (2) are then placed on the breasts of the parturient, the self-locking structure (43) is opened, the outer cover body (1) is pressed, the air between the outer cover body (1) and the inner cover body (2) is discharged from the main channel (411), and the self-locking structure (43) is closed;

S3, when the air pressure sensor (45) detects that the air pressure between the outer cover body (1) and the inner cover body (2) increases, the self-locking structure (43) opens again, the pressure regulating structure (44) continues to discharge part of the air inside the outer cover body (1) and the inner cover body (2), and at this time the automatic switch structure (42) opens;

S4. When the air pressure between the outer cover (1) and the inner cover (2) is adjusted, the self-locking structure (43), the pressure regulating structure (44) and the automatic switch structure (42) are closed in sequence.