Breast pump

Abstract

The utility model discloses a breast pump, and relates to the technical field of mother and baby products, the scheme is that the breast pump comprises a bottle body, a three-way piece, a duckbill valve, an elastic cup, a pumping power device and a breast pumping disc, the upper part of the three-way piece is provided with a negative pressure groove and a breast pumping channel, the middle part of the three-way piece is fixedly provided with a three-way pipe, and the lower part of the three-way piece is provided with a cavity; the negative pressure groove and the breast pumping channel are both communicated with the interior of the three-way pipe, the elastic cup is clamped in the negative pressure groove, the pumping power device is fixedly arranged at the upper end of the elastic cup, the breast pumping disc is fixedly arranged at the end, away from the three-way piece, of the breast pumping channel, and an elastic step is arranged in the breast pumping disc. The duckbill valve is fixedly arranged at the lower end of the three-way pipe, and an air hole is formed in the three-way pipe; according to the automatic milk sucking device, automatic milk sucking is achieved, use of people is further facilitated, negative pressure generated in the milk sucking disc every time is buffered to a certain degree, and the comfort level of a user is improved to a certain degree.

Description

Technical Field

[0001] The utility model relates to the technical field of maternal and infant products, in particular to a breast pump. Background Art

[0002] A breast pump is a maternal and infant product that uses negative pressure to extract breast milk and store it in a bottle. Since breast milk can be stored for dozens of hours in a refrigerated environment and for more than a month in a frozen environment, a breast pump allows mothers to freely adjust their breastfeeding time by feeding with a bottle or a cup. In addition to making breastfeeding easier, a breast pump can also solve the sucking difficulties of some infants, for example, it can be used for premature infants or infants with insufficient jaw bite strength. In addition, in some cases, it can also help mothers with flat and inverted nipples, underdeveloped mammary glands, and scanty milk to collect milk. No. 202320672027X discloses a breast pump. This solution generates negative pressure by manually pressing a balloon, which requires manual operation and is relatively inconvenient to use. On the other hand, when the negative pressure inside the milk extraction part (i.e., the breast pump tray described in the present invention) is too high, it may cause breast discomfort. Against this background, the applicant is committed to developing a breast pump that can automatically extract milk, further facilitating people's use, and providing a certain degree of buffering for the negative pressure generated inside the breast pump tray each time, thereby improving the user's comfort to a certain extent. Summary of the Invention

[0003] The purpose of the utility model is to realize automatic milk extraction, further facilitate people's use, and to buffer the negative pressure generated each time inside the breast pump tray to a certain extent, thereby improving the comfort of the user to a certain extent.

[0004] In order to achieve the above purpose, the technical solutions adopted by the present invention are as follows:

[0005] A breast pump comprises a bottle body, a tee, a duckbill valve, an elastic cup, a suction power device, and a breast suction tray. The upper portion of the tee is provided with a negative pressure groove and a milk suction channel. A tee pipe is fixedly provided in the middle portion of the tee. A cavity is provided in the lower portion of the tee. The negative pressure groove and the milk suction channel are both connected to the interior of the tee pipe. The elastic cup is clamped in the negative pressure groove. The suction power device is fixedly provided at the upper end of the elastic cup. The breast suction tray is fixedly provided at an end of the milk suction channel away from the tee. An elastic step is provided inside the breast suction tray.

[0006] The lower fixed cover of the tee is arranged at the bottle mouth of the bottle body, and the interior of the bottle body is connected with the interior of the cavity. The lower end of the tee pipe extends into the cavity. The duckbill valve is fixedly arranged at the lower end of the tee pipe. An air hole is opened on the tee, and the air hole is connected with the interior of the cavity.

[0007] Furthermore, the thickness of the elastic cup decreases from top to bottom.

[0008] Furthermore, the inner wall of the breast pump tray is provided with a sandblasted surface.

[0009] Furthermore, it also includes a support cover, which is fixed on the periphery of the breast pump tray and fixed on one end of the breast pump channel away from the tee piece.

[0010] Furthermore, the lower portion of the tee piece is screwed onto the bottle mouth of the bottle body.

[0011] Furthermore, a partition is fixedly provided inside the three-way pipe.

[0012] Furthermore, two air holes are provided.

[0013] Furthermore, the suction power device is an integrated arrangement.

[0014] Furthermore, the suction power device is arranged in a split type.

[0015] The beneficial effects of the utility model are as follows: when the utility model is used, the breast pumping plate is covered on the nipple, the suction power device is started, and the suction power device intermittently pumps at a certain frequency;

[0016] When the suction power device pumps, the air inside the elastic cup is sucked out. As the elastic cup contracts, negative pressure is generated inside the negative pressure tank. Since the tee is provided with an air hole that connects to the interior of the cavity, and a duckbill valve is provided at the lower end of the tee, the duckbill valve only allows a small amount of air inside the cavity to enter the tee, thereby generating a certain negative pressure inside the milk extraction channel and the milk extraction tray. Under the action of negative pressure, milk is sucked out, and the sucked milk flows into the tee along the milk extraction channel;

[0017] When the suction power device stops suctioning, the outside air enters the elastic cup through the suction power device, and the elastic cup recovers and fills the negative pressure groove. Since a small amount of air has entered the inside of the three-way tube from the cavity, the elastic cup recovers and fills the negative pressure groove, and the air pressure inside the three-way tube is slightly greater than the air pressure inside the bottle body, so that the milk at the lower end of the three-way tube is pressed into the bottle body through the duckbill valve, and so on. The utility model achieves the purpose of automatic milk suction, thereby further facilitating people's use.

[0018] In addition, the present invention provides an elastic step inside the breast pump tray. When negative pressure is generated inside the breast pump tray, the elastic step also contracts accordingly, thereby buffering and alleviating the sudden negative pressure to a certain extent, avoiding discomfort to the human body caused by excessive negative pressure. In this way, the present invention achieves the purpose of buffering the negative pressure inside the breast pump tray to a certain extent, and improves the comfort of the user to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is one of the overall structural diagrams of the utility model;

[0020] Figure 2 This is the second schematic diagram of the overall structure of the utility model;

[0021] Figure 3 It is a cross-sectional view of the overall structure of the utility model;

[0022] Figure 4 It is an exploded view of the overall structure of the utility model;

[0023] Figure 5 This is a structural cross-sectional view of the tee;

[0024] Figure 6 This is the third schematic diagram of the overall structure of the utility model;

[0025] Figure 7 This is the fourth schematic diagram of the overall structure of the utility model;

[0026] Figure 8 This is the fifth schematic diagram of the overall structure of the utility model;

[0027] The accompanying drawings are:

[0028] Bottle 1,

[0029] Tee 2, negative pressure tank 21, milk suction channel 22, tee pipe 23, partition 231, cavity 24, air hole 25,

[0030] Duckbill valve 3, elastic cup 4, suction power device 5, breast pump tray 6, elastic step 61, support cover 7. DETAILED DESCRIPTION

[0031] The present invention will be further described below with reference to the accompanying drawings.

[0032] like Figures 1 to 8 The breast pump shown includes a bottle body 1, a three-way piece 2, a duckbill valve 3, an elastic cup 4, a suction power device 5, a breast pump plate 6, and a support cover 7.

[0033] A negative pressure groove 21 and a milk suction channel 22 are provided at the upper part of the tee 2, a tee pipe 23 is fixedly provided at the middle part of the tee 2, and a cavity 24 is provided at the lower part of the tee 2. The negative pressure groove 21 and the milk suction channel 22 are both connected to the interior of the tee pipe 23, and the lower end of the tee pipe 23 extends into the cavity 24. A duckbill valve 3 is fixedly provided at the lower end of the tee pipe 23. The function of the duckbill valve 3 is that when negative pressure is generated inside the tee pipe 23, the duckbill valve 3 only allows a small amount of air inside the cavity 24 to enter the interior of the tee pipe 23, so that the interior of the tee pipe 23 maintains a negative pressure state for a certain period of time.

[0034] The tee piece 2 is provided with two air holes 25, and the air holes 25 are connected with the interior of the cavity 24. The lower fixed cover of the tee piece 2 is provided at the bottle mouth of the bottle body 1. Specifically, the lower part of the tee piece 2 is screwed into the bottle mouth of the bottle body 1, and the interior of the bottle body 1 is connected with the interior of the cavity 24. The design of the air holes 25 makes the air pressure inside the cavity 24 and the bottle body 1 equal to the external atmospheric pressure.

[0035] The elastic cup 4 is clamped in the negative pressure groove 21, and the suction power device 5 is fixedly arranged at the upper end of the elastic cup 4. When the suction power device 5 sucks, the air inside the elastic cup 4 is sucked out, and the elastic cup 4 contracts. At the same time, the elastic cup 4 contracts, and negative pressure is generated inside the negative pressure groove 21.

[0036] The breast pump tray 6 is fixedly arranged at the end of the breast pumping channel 22 away from the tee piece 2. An elastic step 61 is provided inside the breast pump tray 6. When negative pressure is generated inside the breast pump tray 6, the elastic step 61 also contracts and deforms accordingly, thereby buffering and alleviating the sudden negative pressure to a certain extent, avoiding discomfort caused by excessive negative pressure. In this way, the utility model achieves the purpose of buffering the negative pressure inside the breast pump tray 6 to a certain extent, thereby improving the comfort of the user to a certain extent.

[0037] The thickness of the elastic cup 4 decreases from top to bottom. This design enables the elastic cup 4 to have better elasticity and better rebound.

[0038] The inner wall of the breast pump tray 6 is provided with a sandblasted surface, which further simulates the environment inside the baby's mouth. When the breast pump tray 6 is attached to the human body, the sandblasted surface can also play a certain massage role, further promoting milk secretion.

[0039] The support cover 7 is fixedly arranged at the periphery of the breast pumping plate 6 and is fixedly arranged at one end of the breast pumping channel 22 away from the tee piece 2, so that the support cover 7 plays a certain supporting role on the breast pumping plate 6.

[0040] A partition plate 231 is fixedly installed inside the three-way pipe 23 .

[0041] In this embodiment, the suction power device 5 can be set as an integrated type, that is, Figure 1 、 Figure 2 and Figure 6 As shown, all components of the suction power device 5 are arranged together; the suction power device 5 can be set as a split type, that is, including a driving mechanism, an air pipe and a cover, and the two ends of the air pipe are respectively connected to the driving mechanism and the cover, that is, Figure 7 and Figure 8 The figure shows the structure of the cover of the suction power device 5.

[0042] The working principle of the present invention is as follows: a breast pump tray 6 is placed on the nipple, and the suction power device 5 is started, and the suction power device 5 intermittently pumps at a certain frequency.

[0043] When the suction power device 5 sucks, the air inside the elastic cup 4 is sucked out. At the same time as the elastic cup 4 contracts, negative pressure is generated inside the negative pressure groove 21. Since the air hole 25 is opened on the tee piece 2, the air hole 25 is connected to the interior of the cavity 24, and a duckbill valve 3 is provided at the lower end of the tee pipe 23. The duckbill valve 3 only allows a small amount of air inside the cavity 24 to enter the tee pipe 23, thereby also generating a certain negative pressure inside the milk suction channel 22 and the milk suction plate 6. Under the action of the negative pressure, milk is sucked out, and the sucked milk flows into the tee pipe 23 along the milk suction channel 22.

[0044] When the suction power device 5 stops suctioning, the outside air enters the elastic cup 4 through the suction power device 5, and the elastic cup 4 recovers and fills the negative pressure groove 21. Since a small amount of air has entered the three-way pipe 23 from the cavity 24, the elastic cup 4 recovers and fills the negative pressure groove 21, and the air pressure inside the three-way pipe 23 is slightly greater than the air pressure inside the bottle body 1. As a result, the milk at the lower end of the three-way pipe 23 is pressed into the bottle body 1 through the duckbill valve 3, and so on. The utility model achieves the purpose of automatic milk suction, thereby further facilitating people's use.

[0045] The above disclosure is only a preferred embodiment of the present invention and cannot be used to limit the scope of protection of the present invention. Therefore, equivalent changes made within the scope of the patent application of the present invention are still within the scope covered by the present invention. The above does not impose any limitation on the technical scope of the present invention. Any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A breast pump, characterized in that: The invention comprises a bottle body, a tee, a duckbill valve, an elastic cup, a suction power device, and a breast pump tray. The upper part of the tee is provided with a negative pressure groove and a milk suction channel. The middle part of the tee is fixedly provided with a tee pipe. The lower part of the tee is provided with a cavity. The negative pressure groove and the milk suction channel are both connected to the interior of the tee pipe. The elastic cup is clamped in the negative pressure groove. The suction power device is fixedly provided at the upper end of the elastic cup. The breast pump tray is fixedly provided at the end of the milk suction channel away from the tee. The interior of the breast pump tray is provided with an elastic step. The lower fixed cover of the tee is arranged at the bottle mouth of the bottle body, and the interior of the bottle body is connected with the interior of the cavity. The lower end of the tee pipe extends into the cavity. The duckbill valve is fixedly arranged at the lower end of the tee pipe. An air hole is opened on the tee, and the air hole is connected with the interior of the cavity.

2. A breast pump according to claim 1, characterized in that: The thickness of the elastic cup decreases from top to bottom.

3. A breast pump according to claim 1, characterized in that: The inner wall of the breast pump tray is provided with a sandblasted surface.

4. A breast pump according to claim 1, characterized in that: The invention also comprises a support cover, which is fixed on the periphery of the breast pump tray and fixed on one end of the breast pump channel away from the tee piece.

5. A breast pump according to claim 1, characterized in that: The lower part of the three-way piece is screwed on the bottle mouth of the bottle body.

6. A breast pump according to claim 1, characterized in that: A partition is fixedly arranged inside the three-way pipe.

7. A breast pump according to claim 1, characterized in that: There are two air holes.

8. A breast pump according to any one of claims 1 to 7, characterized in that: The suction power device is arranged in an integrated manner.

9. A breast pump according to any one of claims 1 to 7, characterized in that: The suction power device is arranged in a split type.

Images