CN216777637U - Mute type breast pump - Google Patents

Abstract

The utility model provides a mute type breast pump, includes host computer shell and core assembly, the battery of setting in the host computer shell, its characterized in that: the machine core assembly comprises a machine core shell, a cam pump and an electromagnetic valve, wherein the cam pump and the electromagnetic valve are arranged in the machine core shell, the machine core shell is formed by closing a machine core upper cover and the machine core bottom shell, a plurality of supporting ribs and supporting points are respectively arranged on the inner walls of the machine core upper cover and the machine core bottom shell corresponding to the upper end and the lower end of the cam pump and the electromagnetic valve, the machine core shell is not in direct contact with the inner wall of the host shell, and the bottom of the machine core shell is fixedly supported with the host shell through a spring mechanism. The utility model has simple and compact structure, adopts a 2-level damping scheme, blocks a noise source and reduces a transmission path of vibration from the source of damping and noise reduction, achieves a good damping and noise reduction effect on the premise of not increasing obvious cost, and improves user experience.

Description

Mute type breast pump

Technical Field

The utility model relates to the technical field of mother and infant articles, in particular to a mute type breast pump.

Background

A breast pump refers to a tool for expressing breast milk accumulated in a breast. The electric breast pumps in the current market mainly pull the breasts by changing the air pressure in the tee joint, so that the function of sucking milk is achieved. The cam pump is mostly adopted in the internal movement of the existing breast pump, and the cam pump has a micro-vibration effect when negative pressure suction is generated due to the structural characteristics of the cam pump, so that the comfort of milk suction is better for users. However, because the interior of the cam pump is in reciprocating piston motion, the vibration and noise of the pump are inevitably large, and the user experience is influenced.

At present, to the problem of large noise vibration of a breast pump, modes such as sponge wrapping and silica gel wrapping are mostly adopted to buffer and absorb shock and isolate noise at the same time. Although the mode can play a certain role in shock absorption and noise reduction, the effect is not ideal.

According to the investigation, the traditional Chinese patent 'portable silent breast pump' with the patent number of CN201820940840.X comprises a shell, wherein the inner wall of the shell is provided with a milk sucking device, the inner wall of the shell is at least provided with a sound insulation rib, the sound insulation rib is wrapped on the periphery of the milk sucking device, and a closed space is formed inside the sound insulation rib. This structure plays the effect of noise box through the muscle that gives sound insulation of assembly in the casing, though simple structure, the device of suckleing still with shells inner wall direct contact, the shock attenuation effect is still not ideal enough.

Disclosure of Invention

The technical problem to be solved by the utility model is to provide a mute type breast pump with simple and compact structure, good damping effect and low noise aiming at the technical current situation.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides a mute type breast pump, includes host computer shell and core assembly, the battery of setting in the host computer shell, its characterized in that: the machine core assembly comprises a machine core shell, a cam pump and an electromagnetic valve, wherein the cam pump and the electromagnetic valve are arranged in the machine core shell, the machine core shell is formed by closing a machine core upper cover and the machine core bottom shell, a plurality of supporting ribs and supporting points are respectively arranged on the inner walls of the machine core upper cover and the machine core bottom shell corresponding to the upper end and the lower end of the cam pump and the electromagnetic valve, the machine core shell is not in direct contact with the inner wall of the host shell, and the bottom of the machine core shell is fixedly supported with the host shell through a spring mechanism.

As the improvement, the core casing is the rectangle, and core upper cover and core drain pan all adopt the effectual rubber material that gives sound insulation, and the thickness of core upper cover and core drain pan is 3 ~ 7mm, and the brace rod be with the circumference complex arc brace rod of cam pump, brace rod and strong point formation one-level shock attenuation.

Further, the specific structure of spring mechanism fixed stay does: the left side and the right side of the machine core bottom shell are provided with lugs extending outwards horizontally, through holes are formed in the lugs, screw columns corresponding to the through holes of the lugs are arranged on the bottom surface of the inner wall of the host shell in a protruding mode, the diameters of the upper ends of the screw columns are smaller than the diameters of the through holes of the lugs, the diameters of the lower ends of the screw columns are larger than the diameters of the through holes of the lugs, the machine core shell is sleeved on the screw columns through the through holes of the lugs, a disc head screw penetrates through the lugs to be connected with the screw columns, a spring is sleeved on the screw columns and supported between the bottom surface of the host shell and the lower end faces of the lugs, the machine core shell is enabled to have an upward trend all the time, and secondary shock absorption is formed between the spring and the machine core shell.

Still further, the default initial height of spring is A, and the screw post height is B, and the wall thickness of core drain pan is C, and the diameter of the upper end diameter of screw post is D, the diameter of through hole on the lug is E, needs to satisfy:

0≤B-A-C≤3mm；

1≤E-D≤6mm。

still further, the lug is four that bilateral symmetry set up, and the screw post that corresponds on the host computer shell bottom surface is four.

Further, the core assembly further comprises a three-way connecting pipe and a silica gel conduit, wherein a hole for the silica gel conduit to extend out is formed in the lower end face of the core bottom shell, and the silica gel conduit penetrates through the hole to be connected with the host shell.

And finally, the host shell is formed by combining an upper shell and a lower shell, connecting columns are arranged at four corners of the inner wall of the lower shell, corresponding connecting holes are arranged at four corners of the upper shell, the upper shell and the lower shell are fixed by screws after being combined, and a control panel is arranged on the upper end surface of the upper shell.

Compared with the prior art, the utility model has the advantages that: having adopted 2 grades of shock attenuation schemes, starting from vibration/noise reduction's source, the transmission path of separation noise source and reduction vibrations, the first order shock attenuation adopts muscle and some bearing structure, reduces pump valve and core shell contact, and the spring shock attenuation is adopted in the second level shock attenuation, guarantees that the core only contacts with the spring, does not produce any direct or indirect contact with the host computer shell, reaches optimum shock attenuation effect. The utility model has simple and compact structure, achieves good damping and noise reduction effects on the premise of not increasing obvious cost, and improves user experience.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is an exploded view of FIG. 1;

fig. 3 is a schematic structural view of the movement assembly;

fig. 4 is a schematic view of the internal structure of fig. 3 after the upper cover of the movement is opened;

FIG. 5 is an exploded view of FIG. 3;

FIG. 6 is a longitudinal cross-sectional view of FIG. 3;

fig. 7 is a partially enlarged view of the region M in fig. 6.

Detailed Description

The utility model is described in further detail below with reference to the accompanying examples.

As shown in fig. 1 to 7, a silent breast pump includes a main unit housing 1, and a movement assembly a and a battery 5 disposed in the main unit housing 1, wherein the main unit housing 1 is formed by an upper housing 11 and a lower housing 12, four corners of an inner wall of the lower housing 12 are provided with connection posts 121, four corners of the upper housing 11 are provided with corresponding connection holes, the upper housing 11 and the lower housing 12 are fixed by screws after being closed, and an upper end surface of the upper housing 1 is provided with a control panel 111. The core assembly A comprises a core shell 2 and a cam pump 3 and an electromagnetic valve 4 which are arranged in the core shell 2, the main body of the core shell 2 is rectangular, the core shell 2 is formed by closing a core upper cover 21 and a core bottom shell 22, the core upper cover 21 and the core bottom shell 22 are made of rubber materials with good sound insulation effect, the thickness of the core upper cover 21 and the core bottom shell 22 is 3-7 mm, the core assembly A has good sound insulation effect, and the cost is controllable. The inner walls of the upper cover 21 and the bottom shell 22 of the movement are respectively provided with a plurality of support ribs 24 and support points 23 corresponding to the upper and lower ends of the cam pump 3 and the electromagnetic valve 4, wherein the support ribs 24 are arc-shaped support ribs matched with the circumference of the cam pump 3, the support ribs 24 and the support points 23 reduce the contact between the pump valve and the movement shell 2, and primary shock absorption is formed. The inner wall of the movement shell 2 and the inner wall of the host shell 1 are not in direct contact, and the bottom of the movement shell 2 and the host shell 1 are fixedly supported through a spring 6 mechanism. The specific structure of the spring 6 mechanism fixing support is as follows: the left side and the right side of the movement bottom shell 22 are symmetrically provided with four lugs 25 which extend outwards and horizontally, through holes 251 are formed in the lugs 25, screw columns 122 which correspond to the through holes 251 of the lugs 25 are convexly arranged on the bottom surface of the inner wall of the lower shell 12 of the host shell 1, the diameters of the upper ends of the screw columns 122 are smaller than the diameters of the through holes 251 of the lugs 25, the diameters of the lower ends of the screw columns 122 are larger than the diameters of the through holes 251 of the lugs 25, the movement shell 2 is sleeved on the screw columns 122 through the through holes 251 of the lugs 25, a pan head screw 7 penetrates through the lugs 25 to be connected with the screw columns 122, a spring 6 is sleeved on the screw columns 122 and supported between the bottom surface of the lower shell 12 and the lower end surface of the lugs 25, the movement shell 2 has a trend of being upward all the time, the pan head screw 7 prevents a component A from being separated from the spring 6, and secondary damping is formed between the movement spring 6 and the movement shell 2.

The default initial height of spring 6 is A, and the screw post 122 height is B, and the wall thickness of core drain pan 22 is C, and the upper end diameter of screw post 122 is D, the diameter of through hole 251 is E on the lug 25, for guaranteeing, after the assembly targets in place, core assembly A can not cause vibrations transmission with screw post 122 and pan head screw 7 output contact, and the size should satisfy the following formula:

0≤B-A-C≤3mm；

1≤E-D≤6mm。

the movement assembly A further comprises a three-way connecting pipe and a silica gel conduit, the lower end face of the movement bottom shell 22 is provided with an opening through which the silica gel conduit extends, and the silica gel conduit penetrates through the opening to be connected with the host shell 1.

A plastic base can also be added below the machine core assembly A, the machine core assembly A is fixed on the plastic base, and the plastic base is matched and fixed with the host machine shell 1 through a spring and a screw.

The breast pump has the same breast pumping function as the prior cam pump, and the specific structure and principle are not described repeatedly.

This embodiment has adopted 2 grades of shock attenuation schemes, from vibration/noise reduction's source, the separation noise source and the transfer path who reduces vibrations, the first order shock attenuation, adopt muscle and some bearing structure, reduce pump valve and core casing contact, the second level shock attenuation adopts spring shock attenuation, guarantee that the core only contacts with the spring, do not produce any direct or indirect contact with the host computer shell, reach optimum shock attenuation effect, a fine vibration/noise reduction effect is reached under the prerequisite that does not increase obvious cost, user experience has been improved.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (7)

1. The utility model provides a mute type breast pump, includes host computer shell and core assembly, the battery of setting in the host computer shell, its characterized in that: the machine core assembly comprises a machine core shell, a cam pump and an electromagnetic valve, wherein the cam pump and the electromagnetic valve are arranged in the machine core shell, the machine core shell is formed by closing a machine core upper cover and the machine core bottom shell, a plurality of supporting ribs and supporting points are respectively arranged on the inner walls of the machine core upper cover and the machine core bottom shell corresponding to the upper end and the lower end of the cam pump and the electromagnetic valve, the machine core shell is not in direct contact with the inner wall of the host shell, and the bottom of the machine core shell is fixedly supported with the host shell through a spring mechanism.

2. The silent breast pump as set forth in claim 1 wherein: the core casing is the rectangle, and core upper cover and core drain pan all adopt the effectual rubber material that gives sound insulation, and the thickness of core upper cover and core drain pan is 3 ~ 7mm, and the brace rod be with the circumference complex arc brace rod of cam pump, brace rod and strong point formation one-level shock attenuation.

3. The silent breast pump as set forth in claim 2, wherein: the specific structure of the spring mechanism fixed support is as follows: the left and right sides of core drain pan is equipped with the lug that outside level extended, the through-hole has been seted up on the lug, the inner wall bottom surface epirelief of host computer shell is equipped with the screw post that corresponds with the through-hole of lug, the upper end diameter of screw post is less than the through-hole diameter of lug, the lower extreme diameter of screw post is greater than the through-hole diameter of lug, the core casing passes through the through-hole cover of lug and establishes on the screw post, a pan head screw passes the lug and is connected with the screw post, the spring housing is established on the screw post, support between the bottom surface of host computer shell and the lower terminal surface of lug, make the core casing have ascending trend all the time, form the second grade shock attenuation between spring and the core casing.

4. The silent breast pump as set forth in claim 3, wherein: the spring defaults to the initial height and is A, and the screw post height is B, and the wall thickness of core drain pan is C, and the diameter of the upper end diameter of screw post for D, the diameter of through hole on the lug be E, need satisfy:

0≤B-A-C≤3mm；

1≤E-D≤6mm。

5. the silent breast pump as set forth in claim 4 wherein: the lug is four that bilateral symmetry set up, and what correspond, the screw post on the host computer shell bottom surface is four.

6. A silent breast pump as claimed in any one of claims 1 to 5, wherein: the machine core subassembly still includes tee bend takeover and silica gel pipe, and the lower terminal surface of machine core drain pan is equipped with the trompil that supplies the silica gel pipe to stretch out, and the silica gel pipe passes the trompil and is connected with the host computer shell.

7. A silent breast pump as claimed in any one of claims 1 to 5, wherein: the host shell is formed by the involution of an upper shell and a lower shell, connecting columns are arranged at four corners of the inner wall of the lower shell, corresponding connecting holes are arranged at four corners of the upper shell, the upper shell and the lower shell are fixed through screws after involution, and a control panel is arranged on the upper end face of the upper shell.

Images