CN219022541U - Automatic switching device for air path of breast pump - Google Patents
Automatic switching device for air path of breast pump Download PDFInfo
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- CN219022541U CN219022541U CN202221725659.XU CN202221725659U CN219022541U CN 219022541 U CN219022541 U CN 219022541U CN 202221725659 U CN202221725659 U CN 202221725659U CN 219022541 U CN219022541 U CN 219022541U
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- air passage
- breast pump
- switching device
- automatic switching
- negative pressure
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Abstract
An automatic switching device of an air passage of a breast pump comprises a body assembly and a negative pressure control assembly, wherein the body assembly is provided with a first air passage, the negative pressure control assembly is provided with a second air passage, and the second air passage is provided with a sealing element; when the body component is connected with the negative pressure control component, the sealing piece generates displacement so that the first air passage and the second air passage are communicated. The automatic switching device for the air channel rapidly realizes the conduction and the blockage of the air channel through the linkage coordination among the ejector rod, the connecting rod and the telescopic rod, and rapidly and effectively realizes the switching of the air channel when the body component of the breast pump is connected or separated from the negative pressure control component, thereby realizing the rapid switching of the use mode of the breast pump, and being convenient and efficient.
Description
Technical Field
The utility model relates to the technical field of mother and infant products, in particular to an automatic air passage switching device of a breast pump.
Background
Breast pumps refer to means for expressing breast milk that accumulates in the breast. The breast pump has electric type and manual type, manual type and divided pressing type, simple rubber ball sucking type and needle cylinder type, and the electric type can stimulate milk array and non-stimulated milk array, and also divided into single pump, double pump and wearing type.
The conventional breast pump consists of a control host and a tee joint assembly, and a milk bottle can be arranged on the tee joint assembly. Because the breast pump needs to be carried out, the conventional breast pump is very inconvenient to carry, and the portable breast pump cannot meet the high-power working requirement at home.
Therefore, it is important to design a breast pump which can meet the double use requirements of families and outdoors. The first problem to be solved is the gas path conversion problem in two modes.
The prior breast pump is disclosed in Chinese patent CN 202654458U, and comprises the following technical contents: the breast pump with the air path reverser structure comprises a negative pressure pump, a breast pump cover, a three-way suction device and a milk storage bottle; the distinguishing points are that: and an air passage converter is arranged between the negative pressure pump and the three-way absorber. The port of the gas circuit converter comprises an air flow output/input port, an air flow output port, an air flow input port, a converter air inlet and a converter air discharge port; an upper valve plate and a lower valve plate are arranged in the cavity of the gas circuit converter; the displacement of the upper valve plate and the lower valve plate is controlled by an electronic circuit.
The technical scheme is that the air passage reverser is used in the traditional breast pump with a main machine, and the structure is very complex.
Disclosure of Invention
In order to overcome the defects of the prior art, the automatic switching device for the air channel of the breast pump is simple in structure and provided with an automatic reset function. In order to solve the technical problems, the utility model provides the following technical scheme:
an automatic switching device of an air passage of a breast pump comprises a body assembly and a negative pressure control assembly, wherein the body assembly is provided with a first air passage, the negative pressure control assembly is provided with a second air passage, and the second air passage is provided with a sealing element;
when the body component is connected with the negative pressure control component, the sealing piece generates displacement so that the first air passage and the second air passage are communicated.
On the basis of adopting the technical scheme, the utility model can also adopt the following further technical scheme:
the body assembly is provided with a push rod, the negative pressure control assembly is provided with a connecting rod, and the push rod and the connecting rod can be mutually pushed. When the body component is connected with the negative pressure control component, the ejector rod is pressed against the connecting rod to enable the connecting rod to move upwards.
The sealing piece comprises a telescopic rod and a sealing ring, and the sealing ring is arranged at the top of the telescopic rod.
And a spring is sleeved at the tail part of the telescopic rod. When the body component is connected with the negative pressure control component, the spring is in a compressed state; when the body component is separated from the negative pressure control component, the spring is reset to be in an initial state.
The rear part of the telescopic link is provided with a limiting shaft, and the top of the connecting rod is provided with an inclined plane. When the body assembly is connected with the negative pressure control assembly, the connecting rod moves upwards due to the jacking direction of the ejector rod, and the limiting shaft of the telescopic rod abuts against the inclined plane of the connecting rod and drives the telescopic rod to move leftwards under the action of the inclined plane.
The top of connecting rod is equipped with two inclined planes, leaves the clearance between two inclined planes, the telescopic link runs through in this clearance.
The second air passage comprises a main air passage and an auxiliary air passage, and a bending part is arranged at the joint of the main air passage and the auxiliary air passage.
The diameter of the front end of the sealing ring is larger than that of the auxiliary air passage. When the body component is separated from the negative pressure control component, the front end of the sealing ring abuts against the opening of the auxiliary air channel, and the sealing ring seals the auxiliary air channel.
The telescopic rod is also provided with a fixed cover, the main gas path channel is provided with an opening, and the fixed cover is hollow and is arranged at the rear side of the opening of the main gas path channel to form a movable cavity. The sealing ring is displaced in the movable cavity.
The diameter of the rear end of the sealing ring is the same as the diameter of the opening of the main gas path channel. When the body assembly is connected with the negative pressure control assembly, the rear end of the sealing ring is positioned at the opening of the main gas path channel, and the sealing ring seals the opening, so that the main gas path channel and the auxiliary gas path channel form a passage.
Compared with the prior art, the utility model has the following beneficial effects:
the automatic switching device for the air channel rapidly realizes the conduction and the blockage of the air channel through the linkage coordination among the ejector rod, the connecting rod and the telescopic rod, and rapidly and effectively realizes the switching of the air channel when the body component of the breast pump is connected or separated from the negative pressure control component, thereby realizing the rapid switching of the use mode of the breast pump, and being convenient and efficient.
Drawings
Fig. 1 is a schematic view of a structure of a breast pump for home use in which the automatic air path switching device of the breast pump of the present utility model is used.
Fig. 2 is a schematic view of the structure of the automatic switching device for air passage of the breast pump in the use state outside the breast pump according to the present utility model.
Fig. 3 is a sectional view showing a home use state of the breast pump of the automatic air path switching device of the breast pump of the present utility model.
FIG. 4 is a sectional view showing a state of use of the automatic air path switching device for a breast pump according to the present utility model.
Fig. 5 is a schematic diagram of a connecting rod structure of an automatic switching device for air path of a breast pump according to the present utility model.
Fig. 6 is a schematic view of a telescopic rod of an automatic air path switching device of a breast pump according to the present utility model.
The device comprises a body assembly 1, a first air passage 11, a push rod 12, a negative pressure control assembly 2, a second air passage 21, a main air passage 211, a secondary air passage 212, a bending part 213, a connecting rod 22, a telescopic rod 23, a sealing ring 24, a spring 25, a limiting shaft 26, an inclined surface 27, a fixed cover 28, a three-way assembly 3 and an air pipe 4.
Detailed Description
The automatic switching device for the air channel of the breast pump provided by the utility model is further described with reference to the accompanying drawings.
1-6, the automatic switching device of the air path of the breast pump comprises a body component 1, a negative pressure control component 2, a tee component 3 and an air pipe 4, wherein in a family use mode, the tee component 3 is connected with the body component 1 through the air pipe 4, and the negative pressure control component 2 is fixed on the body component 1; in the outgoing use mode, only the negative pressure control assembly 2 is fixed on the three-way assembly 3.
Wherein, body subassembly 1 is equipped with first gas circuit passageway 11, and negative pressure control assembly 2 is equipped with second gas circuit passageway 21, and second gas circuit passageway 21 is equipped with the sealing member.
Specifically, the body assembly 1 is provided with a push rod 12, and the negative pressure control assembly 2 is provided with a connecting rod 22. When the body assembly 1 is connected with the negative pressure control assembly 2, the ejector rod 12 is pressed against the connecting rod 22 to move the connecting rod 22 upward.
Further, the sealing member includes a telescopic rod 23 and a sealing ring 24, and the sealing ring 24 is arranged on the top of the telescopic rod 23.
Further, a spring 25 is sleeved at the tail of the telescopic rod 23. When the body assembly 1 is connected with the negative pressure control assembly 2, the spring 25 is in a compressed state; when the body assembly 1 is separated from the negative pressure control assembly 2, the spring 25 is reset to be in an initial state.
Further, a limit shaft 26 is arranged at the rear part of the telescopic rod 23, and an inclined plane 27 is arranged at the top of the connecting rod 22. When the body assembly 1 is connected with the negative pressure control assembly 2, the connecting rod 22 moves upwards due to the pushing of the ejector rod 12, the limiting shaft 26 of the telescopic rod 23 abuts against the inclined surface 27 of the connecting rod 22, and the telescopic rod 23 is driven to move leftwards under the action of the inclined surface 27.
Wherein, the top of connecting rod 22 is equipped with two inclined planes 27, leaves the clearance between two inclined planes 27, and telescopic link 23 runs through in this clearance.
Specifically, the second air path 21 includes a main air path 211 and a sub air path 212, and a junction between the main air path 211 and the sub air path 212 has a bending portion 213.
Further, the diameter of the front end of the seal ring 24 is larger than the diameter of the sub-air passage 212. When the body assembly 1 is separated from the negative pressure control assembly 2, the front end of the sealing ring 24 abuts against the opening of the auxiliary air passage 212, and the sealing ring 24 seals the auxiliary air passage 212.
Further, the rear end diameter of the seal ring 24 is the same as the opening diameter of the main air passage 211. When the body assembly 1 is connected with the negative pressure control assembly 2, the rear end of the sealing ring 24 is positioned at the opening of the main air channel 211, and the opening is sealed by the sealing ring 24, so that the main air channel 211 and the auxiliary air channel 212 form a passage.
The telescopic rod 23 is further provided with a fixed cover 28, the main air channel 211 is provided with an opening, and the fixed cover 28 is hollow and is arranged at the rear side of the opening of the main air channel 211 to form a movable cavity for the sealing ring 24 to displace in the movable cavity.
To sum up, in home use mode: after the negative pressure control assembly 2 is placed on the body assembly 1, the ejector rod 12 can push the connecting rod 22 to move upwards, and a leftward horizontal force is generated due to the action of the inclined surface 27 on the limiting shaft 26 of the telescopic rod 23, so that the telescopic rod 23 moves leftwards, and at the moment, the sealing ring 24 arranged on the telescopic rod 23 enables the main air channel 211 and the auxiliary air channel 212 to form a channel.
When in the use mode, the device is in the use mode: the connecting rod 22 is pushed downwards under the reset action of the spring 25, the telescopic rod 23 returns to the original initial state, the sealing rings 24 of the main air channel 211 and the auxiliary air channel 212 are blocked, and the automatic conversion of air channels is realized.
While the utility model has been shown and described with reference to a preferred embodiment, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the scope of the utility model.
Claims (10)
1. The automatic air passage switching device of the breast pump is characterized by comprising a body assembly and a negative pressure control assembly, wherein the body assembly is provided with a first air passage, the negative pressure control assembly is provided with a second air passage, and the second air passage is provided with a sealing element;
when the body component is connected with the negative pressure control component, the sealing piece generates displacement so that the first air passage and the second air passage are communicated.
2. The automatic switching device for the air passage of the breast pump according to claim 1, wherein the body assembly is provided with a push rod, the negative pressure control assembly is provided with a connecting rod, and the push rod and the connecting rod can be mutually pushed.
3. The automatic switching device for air passage of breast pump according to claim 2, wherein the sealing member comprises a telescopic rod and a sealing ring, and the sealing ring is arranged at the top of the telescopic rod.
4. An automatic switching device for air passage of a breast pump according to claim 3, wherein a spring is sleeved at the tail of the telescopic rod.
5. The automatic switching device for air passage of breast pump according to claim 3, wherein the rear part of the telescopic rod is provided with a limiting shaft, and the top of the connecting rod is provided with an inclined plane.
6. The automatic switching device for air passage of breast pump according to claim 5, wherein the top of the connecting rod is provided with two inclined planes, a gap is left between the two inclined planes, and the telescopic rod penetrates through the gap.
7. The automatic switching device for air passage of breast pump according to claim 3, wherein the second air passage comprises a main air passage and an auxiliary air passage, and a bending part is arranged at the joint of the main air passage and the auxiliary air passage.
8. The automatic switching device for air passage of breast pump according to claim 7, wherein the diameter of the front end of said sealing ring is larger than the diameter of the auxiliary air passage.
9. The automatic switching device for air passage of breast pump according to claim 7, wherein the telescopic rod is further provided with a fixed cover, the main air passage is provided with an opening, and the fixed cover is hollow and is arranged at the rear side of the opening of the main air passage to form a movable cavity.
10. The automatic switching device for air passage of breast pump according to claim 9, wherein the diameter of the rear end of the sealing ring is the same as the diameter of the opening of the main air passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221725659.XU CN219022541U (en) | 2022-07-06 | 2022-07-06 | Automatic switching device for air path of breast pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221725659.XU CN219022541U (en) | 2022-07-06 | 2022-07-06 | Automatic switching device for air path of breast pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219022541U true CN219022541U (en) | 2023-05-16 |
Family
ID=86275516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221725659.XU Active CN219022541U (en) | 2022-07-06 | 2022-07-06 | Automatic switching device for air path of breast pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219022541U (en) |
-
2022
- 2022-07-06 CN CN202221725659.XU patent/CN219022541U/en active Active
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