CN217933155U

CN217933155U - Structure of making an uproar and having its cleaning machine falls in cleaning machine

Info

Publication number: CN217933155U
Application number: CN202221439059.7U
Authority: CN
Inventors: 彭志斌
Original assignee: Shanghai Yili Electric Co ltd; Zhejiang Yili Machinery and Electric Co Ltd
Current assignee: Shanghai Yili Electric Co ltd; Zhejiang Yili Machinery and Electric Co Ltd
Priority date: 2022-06-08
Filing date: 2022-06-08
Publication date: 2022-11-29
Anticipated expiration: 2032-06-08

Abstract

The utility model relates to a structure of making an uproar falls in cleaning machine and cleaning machine that has it should fall the structure of making an uproar including can form the housing and the amortization piece in sound absorption chamber in coordination, amortization piece includes first component and second component, first component is including component unit, and is adjacent connect each other between the component unit, the component unit has two openings that each other is the opposite side, the housing seals one of them of two openings, the second component sets up one side of component unit to cover one of them another of two openings, be equipped with on the part of covering the opening of second component and access to the inside through hole of component unit. The utility model discloses a set up in the inside amortization piece and the housing that can form the sound-absorbing chamber of cleaning machine, can reduce the noise that the cleaning machine during operation sent by a wide margin.

Description

Structure of making an uproar and having its cleaning machine falls in cleaning machine

Technical Field

The utility model particularly relates to a structure of making an uproar falls in cleaning machine and cleaning machine that has it.

Background

As shown in figure 1, the noise reduction structure in the cleaning machine generally belongs to passive noise reduction, namely, sound insulation cotton II is arranged in a machine shell assembly I, and noise generated by the operation of a gear when a motor pump assembly A in the cleaning machine works is absorbed through the sound insulation cotton II. Specifically, the soundproof cotton II is disposed on either the inner casing A0 for housing the motor pump assembly a or the side wall of the side heat dissipation duct III outside the inner casing A0 to absorb and shield noise.

The disadvantages of the above arrangement are:

1. because soundproof cotton II usually adopts mode of pasting or clamp plate is fixed and interior casing A0 or the lateral wall fixed connection of side heat dissipation channel III, consequently in the use of cleaning machine, soundproof cotton II has not hard up or the risk that drops and become invalid, when soundproof cotton II is not hard up or drops, it will block up interior casing A0 and side heat dissipation channel III, influence motor pump assembly A's radiating effect, and lead to motor pump assembly A to take place unusual temperature rise phenomenon, and then influence the life-span and the result of use of cleaning machine.

2. The production cost is high; more specifically, the motor pump assembly a may generate a small amount of sparks which may be scattered outward during operation, and if the soundproof cotton II is not made of a special material with high cost, the sparks may contact the soundproof cotton II and cause a fire.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a structure of making an uproar falls in cleaning machine and cleaning machine that has it should fall the structure of making an uproar and cancelled soundproof cotton's setting, and has higher security and reliability.

The utility model provides a structure of making an uproar falls includes housing and amortization piece that can form the sound-absorbing chamber in coordination, amortization piece includes first component and second component, first component is including the component element, and is adjacent connect each other between the component element, the component element has two openings that each other is the opposite side, the housing seals one of them of two openings, the second component sets up the one side of component element to cover two wherein another of opening, be equipped with on the part that covers the opening of second component and access to constitute the inside through hole of unit.

Optionally, the sound absorption cavity is a helmholtz resonator, and the constituent units have a circular or polygonal cross section.

Optionally, the noise reduction member is separated from the housing and fixedly connected to the housing, or one of the first component and the noise reduction member is integrally formed with the housing.

Optionally, the washing machine further comprises an external meshing part and an internal transmission part, wherein the external meshing part is a gear and is used for meshing with other gears in the washing machine, the internal transmission part is fixedly arranged on the external meshing part and is used for being connected with a transmission shaft in the washing machine, and the hardness of the external meshing part is smaller than that of the internal transmission part.

Optionally, a connecting portion protruding outward is disposed on a surface of the inner transmission member facing the external engagement member, and the connecting portion is fixedly connected to the external engagement member to increase a connecting force between the inner transmission member and the external engagement member.

Optionally, the connecting portion is a toothed or knurled structure.

The utility model also provides a cleaning machine, include as above arbitrary any cleaning machine structure of making an uproar falls.

Optionally, the silencer comprises a first transmission shaft and a second transmission shaft, wherein a first gear is fixedly arranged on the first transmission shaft, a second gear is fixedly arranged on the second transmission shaft, and the silencing piece is arranged at intervals with the first gear and the second gear.

Optionally, the housing includes a base, a side wall, and a sealing portion, the base is disposed on the outer side of the first gear and the second gear, the side wall is disposed on the base and located on the outer side of the silencing member, the sealing portion extends from the side wall to the inside of the cleaning machine, and the sealing portion has a shape of sealing one of the two openings of the component unit.

Optionally, the first gear and the second gear are meshed, the second component comprises a first matching piece and a second matching piece which are connected with each other, the first matching piece and the second matching piece are respectively located on one side of the first gear and one side of the second gear, the first matching piece and the first gear are arranged at intervals, the second matching piece and the second gear are arranged at intervals, and the first matching piece and the second matching piece are provided with component units.

In summary, the utility model can greatly reduce the noise generated by the cleaning machine during operation through the silencing piece and the housing which are arranged inside the cleaning machine and can form the sound absorbing cavity; preferably, through setting up the position that meshes with first gear of second gear in this cleaning machine as the part of being made by the softer material to set up the part that is made by harder material with the position that the second gear links to each other with the second transmission shaft, the utility model discloses can also further reduce the collision noise of first gear with the second gear during operation.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following preferred embodiments are described in detail with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic view of a part of the internal structure of a related art washing machine.

Fig. 2 is a schematic view of a cleaning machine according to an embodiment of the present invention.

Fig. 3 is a schematic view of a part of the internal structure of the cleaning machine according to the embodiment of the present invention.

Fig. 4 is a schematic view of a part of the internal structure of the cleaning machine in the embodiment of the present invention.

Fig. 5 is a schematic view of a silencer according to an embodiment of the present invention.

Fig. 6 is a schematic view of a part of the structure of the silencer according to the embodiment of the present invention.

Fig. 7 is a schematic diagram of the constituent units in a possible embodiment of the present invention.

Fig. 8 is a schematic diagram of the constituent units in a possible embodiment of the present invention.

Fig. 9 is a schematic view illustrating an assembly relationship between the housing and the first gear, the second gear and the noise reduction member according to the embodiment of the present invention.

Fig. 10 is a partial cross-sectional view of a cleaning machine in an embodiment of the invention.

Fig. 11 is an exploded view of the noise damping member, the second gear and the first gear according to the embodiment of the present invention.

Description of the reference numerals

I, a shell assembly, II, soundproof cotton and III, a side heat dissipation channel;

a-motor pump assembly, A0-inner shell, A1-pump assembly, A2-motor assembly, B-gap;

1-a first transmission shaft, 2-a cover, 21-a base, 22-a side wall, 23-a closed part, 3-a second transmission shaft, 4-a silencing part, 41-a first component, 411-a component unit, 42-a second component, 421-a first matching piece, 422-a second matching piece, 423-a through hole, 5-a first gear, 6-a second gear, 61-an inner transmission piece, 611-a connecting part, 62-an outer meshing piece, 621-a matching part and 7-a sound absorption cavity.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

The terms "first," "second," and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

As shown in fig. 2 to 4, the embodiment provides a cleaning machine, a motor pump assembly a is arranged in a casing assembly I of the cleaning machine, a pump assembly A1 is arranged at an upper portion of the motor pump assembly a, a motor assembly A2 is arranged at a lower portion of the motor pump assembly a, and the motor assembly A2 includes a motor and a first transmission shaft 1 driven by the motor; the middle part of the motor pump assembly A is provided with a housing 2 belonging to a cylinder of the pump assembly A1, the inside of the housing 2 is provided with a second transmission shaft 3 (belonging to the pump assembly A1), a silencing part 4, a first gear 5 and a second gear 6, wherein the first transmission shaft 1 is arranged on the right side of the diagram of the second transmission shaft 3, the first gear 5 is fixed on the upper part of the diagram of the first transmission shaft 1, the second gear 6 is fixed on the lower part of the second transmission shaft 3, the second gear 6 is meshed with the first gear 5, and the motor can drive the first transmission shaft 1 to rotate so as to drive the second transmission shaft 3 to rotate, so that the pump assembly A1 can normally work. In particular, the noise reduction member 4 is fixed inside the casing 2 and located on the upper side of the first gear 5 and the second gear 6, and the noise reduction member 4 and the casing 2 can cooperate to form a plurality of helmholtz resonant cavities with a sound absorption function (the sound absorption principle is common knowledge in the art and is not described herein); when the cleaning machine operates, the noise generated when the first gear 5 and the second gear 6 operate is absorbed by the Helmholtz resonant cavity for the most part, so that the effect of reliably reducing the noise can be realized by eliminating the soundproof cotton.

Referring to fig. 5, the silencer 4 includes a first component 41 and a second component 42, in which the first component 41 includes a plurality of cylindrical components 411 that are through from top to bottom, and the components 411 have two through openings (i.e., upper and lower through openings) on opposite sides of each other; the second component 42 is an 8-shaped plate and includes a first fitting member 421 and a second fitting member 422 connected to each other, the second fitting member 422 is a ring-shaped plate having a larger volume relative to the first fitting member 421, and the first fitting member 421 is a flat cylindrical plate having a smaller volume relative to the second fitting member 422; in this embodiment, 22 constituent units 411 are arranged in the circumferential direction of the second fitting member 422 and fixed to the upper surface of the second fitting member 422, 3 constituent units 411 are fixed to the upper surface of the first fitting member 421, and adjacent constituent units 411 are arranged closely; as shown in fig. 6, a plurality of through holes 423 are further provided on the first fitting member 421 and the second fitting member 422, the hole diameters of the through holes 423 are smaller than the inner diameters of the component units 411, and the through holes 423 correspond to the component units 411 on the first fitting member 421 and the second fitting member 422 one by one, and the axial direction of each through hole 423 is collinear with the axial direction of the corresponding component unit 411, so as to form the helmholtz resonator on the sound-deadening member 4 in cooperation with the housing 2. It should be noted that the specific form of the composition unit 411 is flexible for those skilled in the art to set, for example, it has a polygonal cross section; in some embodiments, the constituent cells 411 have a quadrangular cross-section as shown in fig. 7 or a hexagonal cross-section as shown in fig. 8.

Referring further to fig. 9 and 10, the housing 2 of the present embodiment has a partial structure covering the upper opening of the assembly unit 411, so as to cooperate with the silencer 4 to form a helmholtz resonator. Specifically, when the noise-reducing member 4 is installed in the washing machine, the first fitting member 421 is positioned above the first gear 5, the second fitting member 422 is positioned above the second gear 6, and a gap B is provided between the noise-reducing member 4 and the first and second gears 5 and 6; correspondingly, the housing 2 includes a base 21, a side wall 22 and a closing part 23, wherein the base 21 is annularly arranged on the peripheries of the first gear 5 and the second gear 6, the side wall 22 is formed by extending upwards from the base 21 on the outer sides of the first gear 5 and the second gear 6, the side wall 22 is annularly arranged on the periphery of the noise-reducing piece 4, and the side wall 22 is a part of the housing 2 which is in interference fit with the noise-reducing piece 4; the upper edge of the side wall 22 is flush with the upper edge of the constituent units 411, and the closing portion 23 extends from the upper edge of the side wall 22 toward the inside of the cleaning machine and has a shape of closing the through holes of all the constituent units 411 of the first constituent portion 41, so as to form the sound-absorbing chamber 7 having only one external communication port, i.e., the through hole 423, in the cleaning machine, i.e., the aforementioned helmholtz resonator. Thus, when the first gear 5 and the second gear 6 generate impact noise, because the volume of the passage formed by the through hole 423 and going to the sound absorption cavity 7 is much smaller than the volume of the sound absorption cavity 7, the noise will pass through the gap B and generate pressure pulsation at the inlet of the passage, and the air in the passage is driven to oscillate into the sound absorption cavity 7; with the pulsation of the air, the air in the sound absorption chamber 7 will be compressed and expanded continuously, which finally results in the increase and decrease of the air pressure, and then the change of the pressure in the sound absorption chamber 7 will affect the air vibration in the channel in turn; in the vibration process, the energy of the noise is greatly lost, so that the effects of sound absorption and noise reduction for the cleaning machine are achieved.

Optionally, the manner of fixing the noise suppressor 4 in the housing 2 may be flexibly adjusted by those skilled in the art according to needs, for example, the noise suppressor 4 may be fixed in the housing 2 by welding or fastening (e.g., bolt) connection or snap connection, and the noise suppressor 4 may also be directly integrated with the housing 2 (by injection molding or the like) or integrally formed in the manufacturing process of the housing 2. Of course, from the viewpoint of simplifying the process, it is also possible to separately integrate only the first component 41 and the housing 2, and to provide the second component 42 separately.

Referring to fig. 11, preferably, the second gear 6 further includes an inner transmission member 61 and an outer engagement member 62, wherein the inner transmission member 61 is embedded in the middle of the outer engagement member 62 and sleeved on the second transmission shaft 3, and an outer surface of the inner transmission member 61 facing the outer engagement member 62 is provided with a connection portion 611 protruding outwards, and the connection portion 611 is a tooth with a trapezoidal cross section in this embodiment; correspondingly, the external engaging member 62 is a gear with a matching portion 621 formed naturally by injection molding at the middle part, the matching portion 621 penetrates through the external engaging member 62 and is a penetrating area capable of accommodating the connecting portion 611; specifically, the external engaging member 62 is made of a first material (plastic in this embodiment), and the internal transmission member 61 is made of a second material (metal in this embodiment), the first material having a hardness lower than that of the second material; in this embodiment, the external engaging member 62 is formed on the periphery of the inner transmission member 61 by insert molding, and since the external engaging member 62 is soft relative to the inner transmission member 61, the impact noise generated after the external engaging member 62 is engaged with the first gear 5 is relatively small, thereby achieving the active noise reduction effect.

It should be noted that the teeth are provided on the outer peripheral side of the inner transmission member 61 mainly to increase the connecting force between the outer transmission member 62 and the inner transmission member 61, so as to prevent the inner transmission member 61 and the outer transmission member 62 from being separated. In some possible embodiments, the connecting portion 611 may be replaced by a knurled structure, in which case the knurled structure may be densely arranged on the outer periphery of the inner transmission member 61 and connected in a wavy shape, which may also have the effect of ensuring a reliable connecting force between the outer engaging member 62 and the inner transmission member 61.

In summary, the utility model can greatly reduce the noise generated by the cleaning machine during operation by arranging the silencing piece 4 and the housing 2 which can form the sound absorption cavity 7 in the cleaning machine; preferably, the collision noise generated when the first gear 5 and the second gear 6 are operated can be further reduced by setting the portion of the second gear 6 engaged with the first gear 5 in the washing machine as a member made of a relatively soft material and setting the portion of the second gear 6 connected to the second transmission shaft 3 as a member made of a relatively hard material.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a structure of making an uproar falls in cleaning machine, its characterized in that includes can cooperate encloser (2) and the amortization piece (4) that form sound absorbing chamber (7), amortization piece (4) include first component (41) and second component (42), first component (41) include component unit (411), and adjacent connect each other between component unit (411), component unit (411) have two openings that are opposite side each other, encloser (2) seal one of them of two openings, second component (42) set up in one side of component unit (411) to cover one of them another of two openings, be equipped with on the part of covering of second component (42) and lead to through hole (423) inside component unit (411).

2. The structure of noise reduction according to claim 1, characterized in that said sound-absorbing chamber (7) is a helmholtz resonator, said integral unit (411) having a circular or polygonal cross section.

3. The noise reduction structure of a cleaning machine according to claim 1, characterized in that the noise reduction member (4) is provided separately from the casing (2) and is fixedly connected to the casing (2), or

One of the first component (41) or the silencer (4) is integrally formed with the housing (2).

4. The noise reduction structure of a washing machine according to claim 1, further comprising an external engagement member (62) and an internal transmission member (61), wherein the external engagement member (62) is a gear and is adapted to engage with other gears in the washing machine, the internal transmission member (61) is fixedly provided on the external engagement member (62) and is adapted to be connected to a transmission shaft in the washing machine, and the hardness of the external engagement member (62) is less than that of the internal transmission member (61).

5. Noise reducing structure for washing machine according to claim 4, characterized in that the surface of the inner transmission member (61) facing the outer engaging member (62) is provided with a connecting portion (611) protruding outward, and the connecting portion (611) is fixedly connected with the outer engaging member (62) for increasing the connecting force between the inner transmission member (61) and the outer engaging member (62).

6. Noise reducing structure for washing machines according to claim 5, characterized in that said connection portion (611) is of a toothed or knurled structure.

7. A cleaning machine, characterized by comprising a cleaning machine noise reduction structure according to any one of claims 1 to 6.

8. The cleaning machine according to claim 7, characterized by comprising a first transmission shaft (1) and a second transmission shaft (3), wherein a first gear (5) is fixedly arranged on the first transmission shaft (1), a second gear (6) is fixedly arranged on the second transmission shaft (3), and the noise reduction member (4) is arranged at a distance from the first gear (5) and the second gear (6).

9. The washing machine according to claim 8, characterized in that said casing (2) comprises a base (21), a lateral wall (22) and a closing portion (23), said base (21) being arranged outside said first gear (5) and said second gear (6), said lateral wall (22) being arranged on said base (21) and outside said silencing element (4), said closing portion (23) extending from said lateral wall (22) towards the inside of the washing machine, said closing portion (23) having the form of closing one of the two through openings of said component unit (411).

10. The cleaning machine according to claim 8, wherein the first gear (5) and the second gear (6) are engaged, the second component (42) comprises a first fitting element (421) and a second fitting element (422) connected with each other, the first fitting element (421) and the second fitting element (422) are respectively located at one side of the first gear (5) and one side of the second gear (6), the first fitting element (421) is arranged at a distance from the first gear (5), the second fitting element (422) is arranged at a distance from the second gear (6), and the first fitting element (421) and the second fitting element (422) are both provided with a component unit (411).