Cleaning equipment and cleaning system

Abstract

The utility model discloses cleaning equipment and a cleaning system. The cleaning equipment comprises a machine body, a suction device, a silencer and a first shock absorber, wherein the machine body is provided with a dirt suction opening and a first air outlet. The suction device is provided with a first air inlet and a second air outlet, the first air inlet is communicated with the dirt suction port through a first air duct, and the suction device is used for generating suction airflow so as to suck dirt on the surface of a cleaned object through the first air duct; the second air outlet communicates with the first air outlet through a second air duct so that airflow generated by the suction device can be exhausted to the outside through the second air duct. The silencer comprises a plurality of silencing cavities, inlets of the silencing cavities are communicated with the second air duct, sound insulation pieces are arranged in part of the silencing cavities, the first shock absorber is arranged between the suction device and the silencer, and the first shock absorber at least covers part of the inlet of one silencing cavity with the sound insulation pieces. The sound insulation part and the first shock absorber are matched in the silencing cavity to form at least one silencing path; in the depth direction of the silencing cavity, the first shock absorbers and the sound insulation parts are arranged in a spaced and staggered mode, and the projections of the first shock absorbers and the sound insulation parts in the depth direction of the silencing cavity are at least partially overlapped, so that the length of at least one silencing path in the silencing cavity is larger than the depth of the silencing cavity. The cleaning equipment can achieve multi-frequency noise elimination, and is low in cost and simple in structure.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of cleaning, in particular to a cleaning device and a cleaning system. BACKGROUND

[0002] The existing cleaning device, such as a floor cleaning machine and the like, will generate high-speed airflow and a large amount of noise when the fan is running at high speed. The frequencies of these noises are different. In the prior art, in order to achieve multi-frequency noise reduction, it is usually necessary to set a silencer capable of eliminating different frequencies near the component generating noise. Such a setting will increase the cost, occupy a large space, and also cause a large assembly difficulty, which is not conducive to the purpose of reducing the cost of the cleaning device and making the whole machine more portable. CONTENT OF THE UTILITY MODEL

[0003] Therefore, the present disclosure proposes a cleaning device and a cleaning system, aiming to solve at least one of the foregoing technical problems, and to achieve multi-frequency noise reduction of the cleaning device while taking into account at least one of the problems of simple assembly, small size, and low cost.

[0004] The present disclosure proposes a cleaning device, comprising a machine body having a dirt suction port and a first air outlet; a suction device having a first air inlet and a second air outlet; the first air inlet and the dirt suction port are communicated through a first air duct, and the suction device is used to generate a suction airflow to suck dirt on the surface of the object to be cleaned through the first air duct; the second air outlet and the first air outlet are communicated through a second air duct to discharge the airflow generated by the suction device to the outside through the second air duct; a silencer comprising a plurality of silencer cavities, the inlets of the plurality of silencer cavities being communicated with the second air duct; a sound insulation piece is arranged in part of the silencer cavities; a first damper is arranged between the suction device and the silencer, wherein the first damper covers at least part of the inlet of the silencer cavity with the sound insulation piece, the sound insulation piece and the first damper cooperate in the silencer cavity to form at least one silencing path; the first damper and the sound insulation piece are spaced and staggered in the depth direction of the silencer cavity, and the projections of the first damper and the sound insulation piece in the depth direction of the silencer cavity at least partially overlap, so that the length of at least one silencing path in the silencer cavity is greater than the depth of the silencer cavity.

[0005] In some embodiments, the cleaning device comprises a housing arranged on the machine body, the housing is arranged on the outer side of the suction device, and the housing forms the silencer on the side close to the suction device. The silencer is a cavity structure opening towards the suction device.

[0006] In some embodiments, the longest sound-absorbing path of the sound-absorbing cavity is greater than 2 mm and less than 15 mm.

[0007] In some embodiments, when multiple sound-insulating members are arranged in the same sound-absorbing cavity, the multiple sound-insulating members are arranged in a spaced manner.

[0008] In some further embodiments, in the depth direction of the sound-absorbing cavity, at least two sound-insulating members are arranged in a staggered manner.

[0009] In some embodiments, the length of the longest sound-absorbing path of at least part of the multiple sound-absorbing cavities is different; or, the length of the longest sound-absorbing path of the multiple sound-absorbing cavities is all different; or, the depths of the multiple sound-absorbing cavities are consistent; or, the depths of at least part of the multiple sound-absorbing cavities are different.

[0010] In some embodiments, the first air outlet is arranged on the machine body away from the second air outlet; and / or, the first air outlet includes two first air outlets, the two first air outlets are arranged on the machine body in a spaced manner, and the two first air outlets are arranged on the machine body away from the second air outlet.

[0011] In some embodiments, the cleaning device further comprises a flow regulating member arranged at the first air outlet and / or the second air outlet.

[0012] In some embodiments, the flow regulating member is provided with a through hole, and the porosity of the through hole is greater than or equal to 80%.

[0013] The present disclosure provides a cleaning system, comprising a base station and the cleaning device of any one of the preceding embodiments, the base station being used for maintaining the cleaning device; the base station comprises a parking position, and the cleaning device can be parked on the parking position.

[0014] The cleaning device and the cleaning system have the following beneficial effects: when the suction device is working, the vibration generated by the suction device can be absorbed by the first damper, so that the first damper can reduce the noise generated by the vibration on one hand. On the other hand, when the airflow passes through the first air duct and the second air duct, the aerodynamic noise generated by the airflow can be multi-frequency noise-reduced by the multi-frequency muffler composed of the first damper and the silencer, so that the listening quality of the whole cleaning device can be improved. Specifically, since the sound-absorbing cavities of the silencer can all absorb sound waves, and the sound-absorbing path length of the sound-absorbing cavities blocked by the first damper changes, the sound waves that can be absorbed by these sound-absorbing cavities have different frequencies from the sound waves that can be absorbed by other sound-absorbing cavities, so that a multi-frequency muffler that can absorb different sound-absorbing frequencies is formed. The present disclosure is thus arranged, which not only directly reuses the first damper inherent in the cleaning device for the design of the multi-frequency muffler, but also simplifies the structure and saves the cost. Thus, the present disclosure not only utilizes the damping effect of the first damper, but also gives the first damper the function of changing the sound-absorbing path of the ordinary sound-absorbing cavity to form a multi-frequency muffler. Thus, firstly, the utilization rate of the inherent components (the first damper) of the original cleaning device in the cleaning device of the present disclosure is high, so that the structure of the cleaning device can be simplified and the cost can be reduced. Secondly, during the assembly of the cleaning device, the first damper only needs to be covered on the fixed position of the silencer, and the simple assembly mode can realize the formation of the multi-frequency muffler. Thirdly, in the case that the first damper cooperates with the inherent shell of the cleaning device to form the multi-frequency muffler, the formation cost of the multi-frequency muffler can be further saved. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present disclosure, and other drawings can also be obtained by those skilled in the art without creating labor.

[0016] Figure 1 is a perspective structural schematic view of the cleaning device of some embodiments of the present disclosure (omitting the cleaning assembly);

[0017] Figure 2 is a longitudinal sectional view of the cleaning device of some embodiments of the present disclosure (omitting the cleaning assembly);

[0018] Figure 3 is a partial sectional view of the cleaning device of some embodiments of the present disclosure;

[0019] Figure 4 is Figure 3 is a local enlarged structural schematic view of the area A in the figure;

[0020] Figure 5is a schematic view of the assembled suction device, muffler and first damper of some embodiments of the present disclosure;

[0021] Figure 6 is a schematic view of the assembled muffler and first damper of some embodiments of the present disclosure;

[0022] Figure 7 is a cross-sectional view of the assembled muffler and first damper of some embodiments of the present disclosure;

[0023] Figure 8 is a perspective view of the first angle of the muffler of some embodiments of the present disclosure;

[0024] Figure 9 is a perspective view of the second angle of the muffler of some embodiments of the present disclosure;

[0025] Figure 10 is a cross-sectional view of the muffler of some embodiments of the present disclosure;

[0026] Figure 11 is a schematic view of the length of the muffling cavity of some embodiments of the present disclosure with the first damper blocking the inlet of the muffling cavity;

[0027] Figure 12 is a schematic view of the length of the muffling cavity of some embodiments of the present disclosure without the first damper blocking the inlet of the muffling cavity;

[0028] Figure 13 is a cross-sectional view of the muffling cavity of some embodiments of the present disclosure with the first damper blocking the inlet of the muffling cavity and a soundproofing member disposed in the muffling cavity;

[0029] Figure 14 is a cross-sectional view of the muffling cavity of some embodiments of the present disclosure with the first damper blocking the inlet of the muffling cavity and a plurality of soundproofing members disposed in the muffling cavity;

[0030] Figure 15 is a partial cross-sectional view of the cleaning apparatus of some embodiments of the present disclosure;

[0031] Figure 16 is a schematic view of the relative positions of the second air outlet and the first air outlet of the suction device of some embodiments of the present disclosure;

[0032] Figure 17 is a schematic view of the relative positions of the second air outlet and the first air outlet of the suction device of some other embodiments of the present disclosure;

[0033] Figure 18 is a partial cross-sectional view of the cleaning apparatus of some embodiments of the present disclosure with a flow rectifying member disposed at the second air outlet and the first air outlet;

[0034] Figure 19is a sectional view of disposing sound-absorbing and noise-reducing elements in an air duct according to some embodiments of the present disclosure;

[0035] Figure 20 is Figure 2 is an enlarged schematic view of part of the structure in

[0036] Figure 21 is a structural schematic view of a cleaning system according to some embodiments of the present disclosure;

[0037] Figure 22 is a schematic view of disposing sound-absorbing elements in a muffling cavity according to some embodiments of the present disclosure.

[0038] Explanation of reference signs:

[0039] 1000, cleaning system; 600, base station; 610, parking position;

[0040] 100, cleaning device; 101, first air duct; 102, second air duct;

[0041] 10, machine body; 11, first air outlet; 12, suction port;

[0042] 20, suction device; 21, first air inlet; 22, second air outlet;

[0043] 30, housing;

[0044] 31, second air inlet; 33, third mounting column; 34, third air outlet;

[0045] 40, muffler;

[0046] 41, muffling cavity; 411, inlet; 42, sound-absorbing element;

[0047] 431, cover plate; 432, first mounting plate; 433, second mounting plate; 434, partition plate;

[0048] 435, first accommodating cavity; 436, second accommodating cavity; 437, avoiding passage;

[0049] 438, first mounting column; 439, support plate;

[0050] 50, first damper; 51, first end; 52, second end; 53, second mounting column; 54, hollow portion; 60, second damper; 61, passage;

[0051] 70, flow regulating element; 71, first flow regulating element; 72, second flow regulating element;

[0052] 80, sound-absorbing and noise-reducing element; 81, first sound-absorbing cotton; 82, second sound-absorbing cotton;

[0053] 90, soundproof wall; 91, first soundproof wall; 92, second soundproof wall;

[0054] 120, recycling device. DETAILED DESCRIPTION

[0055] The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present disclosure.

[0056] It should also be understood that the terms used in the specification of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure. As used in the specification and the appended claims of the present disclosure, unless otherwise clear from the context, the singular forms "a", "an" and "the" are intended to include the plural forms.

[0057] It should be further understood that the term "and / or" used in the specification and the appended claims of the present disclosure means any combination of one or more of the associated listed items and all possible combinations, and includes these combinations.

[0058] At present, cleaning equipment such as a dust collector, a sweeping robot, a sweeping and mopping integrated machine, a scrubber, a handy vacuum cleaner, etc. usually uses a fan as a power source to generate a suction air flow and use the suction air flow to suck dust, liquid, mites, lint, or solid-liquid mixture, etc. on a cleaned surface such as a floor or a bed surface, so as to realize cleaning and collection of dirt on the cleaned surface. In the process of high-speed operation of the fan for cleaning, the fan itself will produce mechanical vibration and bring about vibration noise; the fan may also produce more pneumatic noise at the air inlet and outlet and in the air duct, which brings more noise trouble to the user of the cleaning equipment and greatly affects the user experience.

[0059] In view of this, the present disclosure proposes a cleaning equipment 100 provided with various noise reduction structures to effectively reduce the overall noise of the cleaning equipment 100 and optimize the acoustic performance of the overall machine.

[0060] Please refer to Figures 1-3 , Figure 21 A cleaning equipment 100, comprising: a machine body 10, a suction device 20 mounted on the machine body 10, a muffler 40 and a first vibration damper 50.

[0061] Among them, the machine body 10 has a sewage suction port 12 as shown in Figure 21 and a dust suction port 14 as shown in Figure 1The first air outlet 11 is shown. Dirt on the surface to be cleaned can be sucked into the body 10 through the dirt suction port 12 for collection. For example, a dirt collection container 13 can be arranged in the body 10, and the dirt suction port 12 can be arranged on the bottom of the dirt collection container 13. Figure 1 and Figure 2 The dirt can be collected by the recycling device 120 shown. The first air outlet 11 is used to discharge filtered air outside the body 10, so that the air flow in the whole machine is balanced, and the suction device 20 can continuously perform suction work.

[0062] Further, the suction device 20 has a first air inlet 21 and a second air outlet 22 as shown. Figure 3 The first air inlet 21 and the dirt suction port 12 are connected by a first air duct 101, and the suction device 20 is used to generate suction air flow to suck dirt on the surface of the object to be cleaned through the first air duct 101. The second air outlet 22 is connected with the first air outlet 11 through a second air duct 102 to discharge the air flow generated by the suction device 20 to the outside through the second air duct 102. Then, by arranging the first air duct 101 and the second air duct 102, the suction device 20 can generate suction air flow to form negative pressure and promote greater suction force at the dirt suction port 12 connected with the first air duct 101, so as to achieve collection of dirt; and the suction device 20 can quickly discharge the suction air flow to the outside of the body 10, so as to achieve balance and circulation of the air flow in the whole machine.

[0063] Please refer to Figure 4 and Figure 5 The muffler 40 includes a plurality of muffling cavities 41, and the inlets 411 of the plurality of muffling cavities 41 are connected with the second air duct 102; as Figure 13 and Figure 14As shown, the soundproofing member 42 is arranged in the partial soundproofing cavity 41. The first damper 50 is arranged between the suction device 20 and the muffler 40; the first damper 50 covers at least a partial inlet 411 of a soundproofing cavity 41 having the soundproofing member 42, and the soundproofing member 42 cooperates with the first damper 50 to form at least one soundproofing path in the soundproofing cavity 41; in the depth direction of the soundproofing path, the first damper 50 is spaced apart from and staggered with the soundproofing member 42, and the projection of the first damper 50 and the soundproofing member 42 in the depth direction of the soundproofing cavity 41 at least partially overlaps, so that the length of at least one soundproofing path in the soundproofing cavity 41 is greater than the depth of the soundproofing cavity 41. That is, in the present disclosure, the first damper 50 can cover only a partial inlet 411 of a soundproofing cavity 41 having the soundproofing member 42; the first damper 50 can also cover a partial inlet 411 of a soundproofing cavity 41 having the soundproofing member 42 and a partial inlet 411 of one or more soundproofing cavities 41 without the soundproofing member 42; the first damper 50 can also cover a partial inlet 411 of a plurality of soundproofing cavities 41 having the soundproofing member 42 and a partial inlet 411 of one or more soundproofing cavities 41 without the soundproofing member 42; the first damper 50 can also cover a partial inlet 411 of all soundproofing cavities 41 having the soundproofing member 42 and not cover a partial inlet 411 of soundproofing cavities 41 without the soundproofing member 42; and the first damper 50 can also cover a partial inlet 411 of all soundproofing cavities 41.

[0064] Therefore, the first damper 50 of the present disclosure can block a partial cross section of at least one inlet 411 of a soundproofing cavity 41 having the soundproofing member 42, so as to change the soundproofing path length of the soundproofing cavity 41. The first damper 50 has a certain damping function and can absorb a certain vibration of the suction device 20 and reduce noise; at the same time, the first damper 50 is used in combination with the muffler 40, and the muffler 40 whose at least one inlet 411 is blocked by the first damper 50 can change the soundproofing path length of the soundproofing cavity 41 inherent to the muffler 40 itself, so that the soundproofing path lengths of the plurality of soundproofing cavities 41 are at least partially different, thereby forming soundproofing cavities 41 with different sound absorption frequencies.

[0065] As can be seen from the above, the cleaning equipment 100 of the present disclosure can absorb at least part of the vibration generated by the suction device 20 when the suction device 20 is working, thereby reducing the noise generated by the vibration.

[0066] The suction device 20 generates a continuous airflow during the suction operation. When the high-speed airflow passes through the second air duct 102, the first damper 50 and the muffler 40 form a multi-frequency muffler, which can reduce the aerodynamic noise generated by the airflow. Since multiple sound absorption cavities 41 can absorb sound waves, and the sound absorption path length of the sound absorption cavity 41 covered by the first damper 50 is different from the sound absorption path length of the sound absorption cavity 41 not covered by the first damper 50, the noise frequencies that can be absorbed are different.

[0067] As shown in Figure 11 , the sound absorption path length L of the sound absorption cavity 41 of the sound absorption cavity 41 covered by the first damper 50 changes, that is, the sound absorption path length L of the sound absorption cavity 41 changes from H1 to L = H1 + L2; as shown in Figure 13 , the sound absorption path length of the sound absorption cavity 41 covered by the first damper 50 changes, that is, the sound absorption path length L of the sound absorption cavity 41 changes from H1 (as shown in Figure 11 ) to L = H1 + L12, where H1 = L11 + L13; and as shown in Figure 14 , the sound absorption path length of the sound absorption cavity 41 covered by the first damper 50 changes, that is, the sound absorption path length L of the sound absorption cavity 41 changes from H1 (as shown in Figure 11 ) to L = H1 + 2L12, where H1 = L11 + L13 + L15. Then, according to the principle of sound wave reflection interference superposition and cancellation, according to the formula f = C / (4L), when f represents the frequency of sound absorption, C represents the speed of sound propagation, C is generally taken as 344 m / s under normal temperature and atmospheric pressure in air, and L represents the sound absorption path length, when the sound absorption path length L in the sound absorption cavity 41 changes, the frequency f of the sound absorption cavity 41 covered by the first damper 50 changes, so that the frequency of the sound wave absorbed by the sound absorption cavity 41 covered by the first damper 50 is different from the frequency of the sound wave absorbed by other sound absorption cavities 41, thereby realizing multi-frequency sound absorption, and the aerodynamic noise generated by the airflow can be greatly attenuated through the sound absorption cavity 41, thereby reducing the aerodynamic noise. The present disclosure can design the sound absorption path length L of the sound absorption cavity 41 corresponding to a specific frequency (such as a specific blade frequency), thereby effectively reducing the blade frequency noise and realizing multi-frequency sound absorption, and effectively improving the listening quality. In addition, the muffler 40 is provided with multiple sound absorption cavities 41, and the sound absorption cavity 41 is a hollow cavity, so that the sound absorption cavity 41 can also achieve a certain lightweight effect.

[0068] As can be seen from the above, the muffler 40 and the first damper 50 cooperate to achieve the absorption of multiple noise sources of the suction device 20. The multi-frequency muffler designed in the present disclosure not only can directly reuse the first damper 50 inherent to the cleaning device 100 itself, but also simplifies the structure to make the structure simple and low in cost. In the assembly process, the first damper 50 only needs to be covered on the fixed position of the muffler 40, and then the multi-frequency muffler can be configured, and the assembly method is simple.

[0069] It can be understood that, compared with the quarter-wave tube muffler in the prior art which can only reduce a specific frequency, the muffler 40 of the present disclosure can achieve multi-frequency absorption, and is also more convenient to process and reduce manufacturing costs.

[0070] Compared with the cleaning device in the prior art which can only reduce vibration noise but cannot reduce pneumatic noise, the present disclosure can not only reduce the vibration noise generated by the operation of the suction device 20, but also reduce the pneumatic noise generated by the high-speed operation of the suction device 20, thereby achieving the reduction of multiple noise sources.

[0071] Compared with the prior art which arranges multiple layers of flow channels to increase the length of the flow channel and achieve more path muffling, thereby reducing the space for arranging components in the limited space of the cleaning device and limiting the increase in the length of the flow channel; the present disclosure does not simply rely on increasing the airflow flow channel to achieve noise reduction, but cooperates with the structure (the first damper 50) that the cleaning device originally has to not only reduce vibration noise but also reduce pneumatic noise of different frequencies. The present disclosure can reuse the first damper 50 to ensure good noise reduction effect and optimize the acoustic performance of the whole machine with a simple structure.

[0072] As shown in Figure 3 , the cleaning device 100 includes a housing 30 arranged on the machine body 10, the housing 30 is arranged outside the suction device 20, and the housing 30 is formed with the muffler 40 on the side close to the suction device 20. That is, the muffler 40 constitutes part of the housing 30, and the muffler 40 is also located outside the suction device 20, so that the structure is simple and compact, and easy to demold. In some embodiments, the muffler 40 can also be arranged independently of the housing 30.

[0073] Further, as shown in Figure 3 and Figure 4 , the muffler 40 is a cavity structure opening towards the suction device 20. That is, the muffler 40 can serve as part of the second air duct 102, so that the air discharged by the suction device 20 can be discharged along the predetermined path to the first air outlet 11. The cavity structure of the muffler 40 also makes the muffler 40 itself have strong sound absorption function, and enables the muffler 40 to accommodate part of the structure of the suction device 20, so that the arrangement of the components inside the whole machine is more compact.

[0074] The shell 30 outside the suction device 20 can separate the suction device 20 from the fuselage 10 and support the suction device 20, so that the suction device 20 has a relatively stable working environment. In some embodiments, the muffler 40 is part of the shell 30, which not only reduces the processing materials of the shell 30, but also stabilizes the working of the suction device 20 and reduces the noise.

[0075] In some embodiments of the present application, the longest sound attenuation path of the sound attenuation cavity 41 is greater than 2mm and less than 15mm, and the sound attenuation path length parameter of the sound attenuation cavity 41 can refer to Table 1.

[0076] In Table 1, nine sound attenuation cavities 41 of the muffler 40 are exemplarily illustrated as an example, as a group of combinations to be tested, to further test the noise elimination effect of the nine sound attenuation cavities 41 with different sound attenuation path lengths on four specific frequencies.

[0077] The sound attenuation path length parameters of different sound attenuation cavities in each combination in Table 1

[0078]

[0079] The 29 combinations of sound attenuation cavities with different sound attenuation path lengths in Table 1 are tested, and four specific frequencies are selected for transmission loss test, and the test data are shown in Table 2.

[0080] From Table 2, it can be seen that the combination 1 is used in the present application, that is, the combination of the nine sound attenuation cavities 41 with sound attenuation path lengths of 10.89mm, 11.04mm, 2.94mm, 11.03mm, 2.04mm, 7.87mm, 5.96mm, 10.10mm and 2.79mm, and the transmission loss of the four specific frequencies is relatively large, which indicates that the muffler 40 with the sound attenuation cavities 41 with the sound attenuation path lengths of the combination 1 can effectively reduce the noise of the four specific frequencies.

[0081] Table 2 shows the transmission loss test values of the sound attenuation cavities with different combinations at four specific frequencies

[0082]

[0083] In some embodiments of the present application, as shown in Figure 5 , Figure 6 , Figure 8 , Figures 11-14 At least part of the sound attenuation path lengths of the plurality of sound attenuation cavities 41 are different, and the sound attenuation path lengths of the sound attenuation cavities 41 can be different due to different internal structures (as shown in Figure 12 , or as shown in Figure 14The soundproofing cavities 41 are not covered by the first damper 50, and the soundproofing cavities 41 are additionally provided with the soundproofing members 42; or the soundproofing path length L of the soundproofing cavities 41 is different due to the partial cross section of the inlet 411 of the soundproofing cavities 41 being blocked by the first damper 50 (as shown in Figure 11 、 Figure 13 and Figure 14 The different soundproofing path lengths L correspond to different sound absorption frequencies of the soundproofing cavities 41, which is beneficial to further improve the multi-frequency soundproofing performance of the soundproofing device 40. For example, among the 10 soundproofing cavities 41, the soundproofing path lengths of 4 soundproofing cavities 41 are the same, and the soundproofing path lengths of the other 6 soundproofing cavities 41 are different. The soundproofing path lengths of the 4 soundproofing cavities 41 can be different respectively, or the soundproofing path lengths of the 6 soundproofing cavities 41 can be different respectively.

[0084] In some specific examples, the depths of the plurality of soundproofing cavities 41 are all different, and the soundproofing path lengths L of the soundproofing cavities 41 are different; or the soundproofing path lengths L of the soundproofing cavities 41 are different due to the soundproofing members 42 of different forms being arranged in the soundproofing cavities 41; or the soundproofing path lengths L of the soundproofing cavities 41 are different due to the partial cross section of the inlet 411 of the soundproofing cavities 41 being blocked by the first damper 50, so that the soundproofing path lengths L of all the soundproofing cavities 41 are different, and the sound absorption frequencies of the soundproofing cavities 41 are also different, so that the soundproofing device 40 can absorb sound of the maximum frequency width, and wideband soundproofing is achieved.

[0085] In some examples, the cross sections of the plurality of soundproofing cavities 41 are designed to be different in size, and the pipe area in the soundproofing cavities 41 affects the actual soundproofing amount, so that when the cross section shapes of the soundproofing cavities 41 are different, the soundproofing amounts generated by the soundproofing cavities 41 are also different. Therefore, in some examples, the cross section areas of the corresponding soundproofing cavities 41 can be increased at positions where the aerodynamic noise is more.

[0086] In some examples, the cross section shapes of the soundproofing cavities 41 are designed to be different, so that the structural design of the soundproofing device 40 is more flexible, and the available space can be effectively utilized. In some specific examples, the cross section shapes of the soundproofing cavities 41 are different, so that the cross section sizes of the soundproofing cavities 41 are different, and the soundproofing amounts are different.

[0087] In some examples, the plurality of soundproofing cavities 41 are arranged along the circumference of the fuselage 10. Therefore, in these examples, the soundproofing device 40 can absorb the aerodynamic noise at all positions along the circumference of the fuselage 10, which is beneficial to improve the absorption of the aerodynamic noise from multiple directions. In specific examples, the cross section areas of the inlets 411 of the plurality of soundproofing cavities 41 are different in size, that is, the cross sections of the inlets 411 of the soundproofing cavities 41 are blocked by the first damper 50, which not only improves the cooperation degree of the soundproofing device 40 and the first damper 50, but also adjusts the soundproofing amounts of the soundproofing cavities 41 at different positions of the soundproofing device 40.

[0088] Further, the plurality of first dampers 50 shield part of the cross section at the inlet 411 of the plurality of sound absorption cavities 41, the cross section area at the inlet 411 of each sound absorption cavity 41 shielded by the first dampers 50 is different in size, so that the sound absorption amount of the sound absorption cavities 41 shielded by the first dampers 50 is not the same, which is beneficial to the targeted design of the sound absorption amount of the corresponding aerodynamic noise of the sound absorber 40.

[0089] In some embodiments of the present application, at least part of the plurality of sound absorption cavities 41 is different in length along the axial direction of the fuselage 10, that is, the depth of the sound absorption cavities 41 is different. Referring to Figure 12 For example, the distance from the inlet 411 to the bottom wall of the sound absorption cavity 41 can be regarded as the length along the axial direction of the fuselage 10, and at the same time, it is also the sound absorption path length L of the sound absorption cavity 41, so when L is designed to be different, the sound absorption frequency corresponding to the sound absorption cavity 41 is also different, thereby realizing multi-frequency sound absorption. However, due to the limited arrangement space in the cleaning equipment 100 of the present application, the range of the depth of the sound absorption cavity 41 that can be adjusted is limited, and the present application covers part of the inlet 411 of the sound absorption cavity 41 by using the first damper 50, and cooperates with the sound insulation piece 42 arranged inside the sound absorption cavity 41, so that the arrangement space of the entire sound absorber 40 is not increased without increasing the depth of the sound absorption cavity 41, and the effect of the sound wave of the specific frequency that can be attenuated by each sound absorption cavity 41 is better.

[0090] In some specific examples, the depth of each sound absorption cavity 41 is consistent, so that the surface of the sound absorber 40 forms a relatively flat surface, which is beneficial to arranging the circuit board or part of the structure of the suction device 20, so that the internal structure of the entire machine is more compact and regular.

[0091] In some examples, the depth of at least part of the plurality of sound absorption cavities 41 is different, so that more frequencies of noise can be attenuated due to the structure itself.

[0092] In some embodiments of the present application, as shown in Figure 13 and Figure 14 At least part of the sound absorption cavities 41 is provided with a sound insulation piece 42, and the sound insulation piece 42 is arranged in the sound absorption cavity 41, and the sound insulation piece 42 is arranged in the sound absorption cavity 41.

[0093] Referring to Figure 13 and Figure 14As shown, at least one sound-insulating member 42 is provided inside the silencing cavity 41. In the axial direction of the fuselage 10, the side of the sound-insulating member 42 facing the inlet 411 of the silencing cavity 41 is spaced apart from the first vibration damper 50, and a portion of the side of the sound-insulating member 42 is spaced apart from the cavity wall of the silencing cavity 41, so that the silencing cavity 41 has a certain length both along the axial direction of the fuselage 10 and along the axial direction perpendicular to the fuselage 10. In these examples, the cooperation between the sound-insulating member 42 and the first vibration damper 50 enables at least one pipe bend within the silencing cavity 41, thereby lengthening the silencing path length L of the pipe.

[0094] For example in Figure 13 In the example shown, a sound insulation component 42 is provided inside the anechoic cavity 41. The side of the sound insulation component 42 facing the inlet 411 is spaced apart from the first vibration damper 50. Part of the side of the sound insulation component 42 is spaced apart from the side wall of the anechoic cavity 41, and the side of the sound insulation component 42 away from the inlet 411 contacts the bottom wall of the anechoic cavity 41. At this time, the anechoic path length L of the anechoic cavity 41 is equivalent to the superposition of L11, L12 and L13 (assuming that L11 and L13 are superimposed as L11 and L12). Figure 11 H1 or Figure 12 L in the middle, compared to Figure 12 The design that does not include sound insulation component 42 and the first vibration damper 50 Figure 13 In the example, the silencing path length L of the silencing cavity 41 is significantly longer than the length corresponding to L12; compared to Figure 11 The solution that only adds the first vibration damper 50 without adding the sound insulation component 42, Figure 13 In the example, the silencing path length L of the silencing cavity 41 is increased by the length L1 (assuming L1 + L2 = L12). In a further example, when Figure 13 When the bottom surface of the sound insulation component 42 in the example shown is spaced apart from the bottom wall of the anechoic cavity 41, the anechoic path length L of the anechoic cavity 41 will be further increased by L12. These examples are also within the scope of protection of this disclosure.

[0095] In some examples, when multiple sound insulation components 42 are provided in the same anechoic cavity 41, the multiple sound insulation components 42 are arranged at intervals. In these examples, by setting multiple sound insulation components 42, multiple sub-anechoic cavities with anechoic path lengths are formed in the anechoic cavity 41, or the anechoic cavity 41 has a longer anechoic path.

[0096] In a further example, such as Figure 22 As shown, in the depth direction of the anechoic cavity 41, two adjacent sound insulation members 42 are arranged on the same side (i.e., the opposite of the staggered arrangement), thus forming sub-anechoic cavities with two different anechoic path lengths, such as... Figure 22The purple and yellow paths shown further enhance the multi-frequency silencing capability. This arrangement allows the same silencing cavity 41 to have two silencing paths of different lengths, enabling it to silencing two different frequencies. Similarly, by placing multiple sound-insulating components 42 on the same side of the same silencing cavity 41, silencing paths of different lengths can be formed within the same cavity 41, allowing it to achieve multi-frequency silencing.

[0097] In other examples, at least two sound insulation elements 42 are staggered in the depth direction of the anechoic cavity 41. This can further increase the number of bends in the noise propagation between adjacent sound insulation elements 42 and increase the anechoic path length of the entire anechoic cavity 41.

[0098] For example, in Figure 14 In the example shown, the anechoic chamber 41 is provided with two sound insulation components 42. The side of the sound insulation component 42 near the inlet 411 facing the inlet 411 is spaced apart from the first vibration damper 50. The two sound insulation components 42 are spaced apart from each other in the axial direction of the fuselage 10. When the right side of the sound insulation component 42 near the inlet 411 is spaced apart from the inner wall of the anechoic chamber 41, the right side of the sound insulation component 42 away from the inlet 411 is connected to the inner wall of the anechoic chamber 41, and the left side of the sound insulation component 42 away from the inlet 411 is spaced apart from the side wall of the anechoic chamber 41. In this case, the anechoic path length L of the anechoic chamber 41 is equivalent to the superposition of L11, L12, L13, L14, and L15 (assuming that the superposition of L11, L13, and L15 is...). Figure 11 H1 or Figure 12 L in the middle, compared to Figure 12 The design that does not include sound insulation component 42 and the first vibration damper 50 Figure 14 In the example, the silencing path length L of the silencing cavity 41 is significantly longer than the lengths corresponding to L12 and L14; compared to Figure 11 The solution that only adds the first vibration damper 50 without adding the sound insulation component 42, Figure 14 In the example, the silencing path length L of the silencing cavity 41 is increased by the length L1 + L14 (assuming L1 + L2 = L12 = L14). In a further example, when Figure 14 When the bottom surface of the sound insulation member 42, which is away from the entrance 411, is spaced apart from the bottom wall of the anechoic chamber 41 in the example shown, the anechoic path length L of the anechoic chamber 41 will be further increased by L14. These examples are also within the scope of protection of this disclosure.

[0099] Similarly, the increase in the silencing path length L of the silencing cavity 41 with more sound insulation components 42 is not described here.

[0100] The arrangement and quantity of the sound insulation components 42 in the above examples of this disclosure are merely exemplary. Those skilled in the art should understand that any similar or equivalent structure of the sound insulation components 42 provided in the anechoic cavity 41 and with an increased anechoic path length L should be within the scope of protection of this disclosure.

[0101] As can be seen from the above, in the embodiments of this disclosure, at least some of the longest silencing path lengths of the multiple silencing cavities 41 are different. In some examples, the longest silencing path lengths of the multiple silencing cavities 41 are all different, thereby maximizing the broadband silencing of the muffler 40 and the elimination of noise at specific frequencies, and improving the overall sound quality of the device.

[0102] In some embodiments of this utility model, combined with Figure 5 and Figure 8 As shown, the silencer 40 includes a cover plate 431, a first mounting plate 432, a second mounting plate 433, and a plurality of partitions 434. The first mounting plate 432 and the second mounting plate 433 are spaced apart on the side of the cover plate 431 facing the suction device 20. A gap is formed between the first mounting plate 432 and the cover plate 431. Figure 7 and Figure 8 The open first receiving cavity 435 shown forms a shape between the first mounting plate 432, the second mounting plate 433, and the cover plate 431. Figure 7 , Figure 8 and Figure 10 The open second accommodating cavity 436 shown is divided into multiple anechoic chambers 41 by a plurality of partitions 434 spaced between a first mounting plate 432 and a second mounting plate 433. In these examples, the first mounting plate 432 and the second mounting plate 433 are arranged at intervals relative to each other, serving as the two sides of the second accommodating cavity 436, while the cover plate 431 serves as the bottom surface of the second accommodating cavity 436. After the second accommodating cavity 436 is divided into anechoic chambers 41 by the partitions 434, each adjacent partition 434, a portion of the first mounting plate 432, and a portion of the second mounting plate 433 each serve as a side of an anechoic chamber 41, while the corresponding portion of the cover plate 431 serves as the bottom surface of the anechoic chamber 41. Therefore, the silencer 40 disclosed herein has a simple structure, is easy to mold and process, and is easy to adjust the area at the inlet 411 of the silencing cavity 41 by adjusting the distance between two adjacent partitions 434, thereby adjusting the sound absorption. By adjusting the thickness of the cover plate 431 in the area enclosed by the first mounting plate 432, the second mounting plate 433 and the two partitions 434, the original sound absorption path length from the inlet 411 to the bottom wall of the silencing cavity 41 can also be adjusted, thereby forming multiple silencing cavities 41 with different sound absorption frequencies and sound absorption amounts, thus improving the multi-frequency sound absorption performance of the silencer 40 disclosed herein.

[0103] In some examples, the circuit board (not shown in the figure) is also mounted on the side of the cover plate 431 away from the first damper 50, facilitating the electrical control connection between the circuit board and the suction device 20. In these examples, as shown in Figure 9 The muffler 40 also includes a support plate 439, which is protruded upward from the side of the cover plate 431 away from the first damper 50 and encloses the circuit board. The support plate 439 can protect the circuit board from being pressed and improve the safety of the circuit board arrangement. The support plate 439 can also be in contact with part of the body 10, and a larger muffling cavity is formed between the support plate 439, the body 10, and the cover plate 431, which is conducive to further improving the muffling effect of the muffler 40.

[0104] In some embodiments of the utility model, the first damper 50 and the muffler 40 are detachably connected, for example, in one or more of the forms of threaded connection of bolts, plug-in connection of columns and slots, clamping connection of buckles and slots, or magnetic attraction.

[0105] In specific examples, as shown in Figure 6 and Figure 7 The first damper 50 and the muffler 40 are connected and fixed by fasteners. More specifically, the first damper 50 and the muffler 40 are connected in the form of bolt and thread cooperation, as shown in Figure 8 A first mounting column 438 is provided on the side of the muffler 40 facing the first damper 50. As shown in Figure 6 A second mounting column 53 is provided on the first damper 50 corresponding to the position of the first mounting column 438. An inner thread can be provided on the inner wall of the second mounting column 53. When the bolt passes through the first mounting column 438 and is tightened in the second mounting column 53, the detachable connection between the first damper 50 and the muffler 40 can be achieved. More specifically, a plurality of first mounting columns 438 are provided on the muffler 40, and a plurality of second mounting columns 53 are provided on the first damper 50. The first mounting column 438 and the second mounting column 53 are aligned and tightened by bolts to achieve the detachable installation of the first damper 50 and the muffler 40.

[0106] In some embodiments of the utility model, the muffler 40 and the shell 30 are detachably connected. That is, although the muffler 40 is part of the shell 30 and encloses the suction device 20 together, the muffler 40 and the other parts of the shell 30 are separately provided and detachably connected. The detachable connection can be in one or more of the forms of threaded connection of bolts, plug-in connection of columns and slots, clamping connection of buckles and slots, or magnetic attraction.

[0107] In specific examples, as shown in Figure 4 and Figure 5As shown, the muffler 40 is connected to the shell 30 in the form of a bolt and screw thread fitting. As shown in Figure 5 As shown, a third mounting post 33 is provided on the shell 30, and the third mounting post 33 is internally threaded. Figure 8 As shown, a first mounting post 438 is provided on the muffler 40 facing the first damper 50, and the third mounting post 33 and the first mounting post 438 are correspondingly arranged. By passing a bolt through the first mounting post 438 and screwing it into the third mounting post 33, the detachable mounting of the muffler 40 and the shell 30 can be achieved. In these examples, by detachably connecting the muffler 40 and the shell 30, the first damper 50 is also clamped between the muffler 40 and the suction device 20, and when the suction device 20 vibrates, the first damper 50 can be used for damping.

[0108] In further examples, the first mounting post 438 on the muffler 40, the second mounting post 53 on the first damper 50, and the third mounting post 33 on the shell 30 are correspondingly arranged in sequence, and when a bolt is passed through the first mounting post 438, the second mounting post 53, and screwed onto the third mounting post 33, the detachable mounting of the muffler 40, the first damper 50, and the shell 30 is simultaneously achieved. The first mounting post 438, the second mounting post 53, and the third mounting post 33 in these examples include multiple groups arranged in sequence, achieving multiple connections of the muffler 40, the first damper 50, and the shell 30, and making the overall structure stable and not easy to shake after connection.

[0109] In some examples, in combination with Figure 4 and Figure 7 As shown, the first end 51 of the first damper 50 extends into the first accommodating cavity 435, and the second end 52 of the first damper 50 extends into the second air duct 102, so that the second end 52 can block the cross section at part of the inlet 411 of the muffling cavity 41, and the first end 51 has sufficient buffer space to provide effective vibration damping for the suction device 20, thereby fully absorbing vibration noise.

[0110] In some examples, the first damper 50 is an elastic member, which can be made of rubber, silica gel or the like, so as to be stretched by the vibration force during the vibration of the suction device 20, and to restore its original shape after the vibration force is removed, so as to realize the vibration buffering of the suction device 20 and the noise reduction caused by the vibration of the suction device 20. In some examples, after the muffler 40, the first damper 50 and the shell 30 are detachably connected, the first damper 50 is slightly pressed by local slight interference, so that the first damper 50 is slightly elongated, and then the first damper 50 generates a certain downward pressing force on the suction device 20, so that the suction device 20 can stably contact the first damper 50, and the first damper 50 can timely absorb the vibration force and reduce the vibration noise during the vibration of the suction device 20. In other examples, the elastic member can also be a thin elastic sheet, so as to reduce the rigidity of the first damper 50, and facilitate the vibration reduction of the suction device 20.

[0111] In some examples, as shown in Figure 3 , the first damper 50 is sleeved on the outside of the suction device 20. That is, the first end 51 of the first damper 50 is sleeved on the outside of the suction device 20, and as shown in Figure 5 and Figure 7 , the first end 51 of the first damper 50 is formed with a hollow portion 54 close to the suction device 20, so that part of the suction device 20 can pass through the hollow portion 54, and the first end 51 of the first damper 50 is sleeved on the outside of the suction device 20; the hollow portion 54 can also enable the suction device 20 to dissipate heat.

[0112] In other examples, the first end 51 can be formed in a bulge shape protruding towards the first accommodating cavity 435 of the muffler 40, and part of the suction device 20 can be accommodated in the bulge shape, so as to realize the sleeving of the first end 51 and the suction device 20. After the first damper 50 is compressed and stretched, the first damper 50 also generates a certain downward pressing force on the suction device 20, so as to realize the stable contact of the first damper 50 and the suction device 20 and the buffering of the first damper 50 on the suction device 20. In these examples, in order to enhance the heat dissipation effect of the suction device 20, a hollow hole structure can also be formed on the first end 51 in the bulge shape, so as to dissipate heat.

[0113] In some embodiments of the utility model, the shell 30 and the machine body 10 are detachably connected, and the detachable connection structure can be one or more of the following forms: bolt thread connection, column slot insertion, buckle slot clamping or magnetic attraction.

[0114] For example, in a specific example, a fourth mounting column (not shown in the figure) is arranged on the fuselage 10, the fourth mounting column is internally threaded, and a fifth mounting column or assembly hole (not shown in the figure) is arranged on the shell 30 corresponding to the fourth mounting column, when the fourth mounting column and the fifth mounting column (or the assembly hole) are docked, a bolt is used to pass through the fifth mounting column (or the assembly hole) and be screwed in the fourth mounting column, so that the detachable connection of the fuselage 10 and the shell 30 can be realized. The fourth mounting column and the fifth mounting column in these examples can be arranged as a plurality of corresponding groups, so as to realize the stable connection between the fuselage 10 and the shell 30, and effectively reduce the gap and abnormal sound between the components.

[0115] In further examples, in order to realize the assembly of the fourth mounting column and the fifth mounting column, as shown in Figure 8 , an avoiding passage 437 is arranged on the muffler 40 along the thickness direction of the muffler 40, and the fourth mounting column can pass through the avoiding passage 437 and be docked with the fifth mounting column during the installation of the fuselage 10 and the shell 30, so as to facilitate the tightening of the fastener bolt, and realize the detachable installation of the fuselage 10 and the shell 30. In a specific example, the cross section of the avoiding passage 437 is U-shaped, that is, the second mounting plate 433 in the foregoing example is recessed towards the first mounting plate 432 to form the U-shaped avoiding passage 437, so that the fourth mounting column can be assembled and disassembled with respect to the fifth mounting column of the shell 30 along the up-down direction of the fuselage 10. The number and position of the avoiding passage 437 in these examples need to be arranged one by one corresponding to the number and position of the fourth mounting column, so that each fourth mounting column can be docked with the fifth mounting column through the corresponding avoiding passage 437.

[0116] In some embodiments of the utility model, please refer to Figure 15 , Figure 16 and Figure 17 , the first air outlet 11 is arranged on the fuselage 10 away from the second air outlet 22, so that the second air duct 102 connecting the first air outlet 11 and the second air outlet 22 has the longest length as possible, the effective growth of the second air duct 102 is realized, the grown second air duct 102 can realize more dissipation of sound energy such as vibration noise and aerodynamic noise, and the performance of path silencing is effectively improved, and the required structural basis for path silencing is provided.

[0117] In some examples, as shown in Figure 15 and Figure 17As shown, the first air outlet 11 includes two, two first air outlet 11 interval is provided on the fuselage 10, two first air outlet 11 is away from the second air outlet 22 is provided on the fuselage 10. In these examples, by setting two first air outlet 11, the diameter of the fuselage 10 can be smaller, the whole machine is more small, but also can guarantee the rapid air outlet, also can take into account the second air duct 102 has a certain path of sound attenuation effect, and the handle rod installation site of the cleaning equipment 100 is reserved the required space and position.

[0118] In other examples, as shown in Figure 16 , the first air outlet 11 is one, the part of the second air duct 102 formed between the shell 30 and the fuselage 10, the shell 30 is provided with a third air outlet 34, the third air outlet 34 is located on one side of the suction device 20, the first air outlet 11 is away from the third air outlet 34 and the first air outlet 11 is located on the other side of the suction device 20, then, the shell 30 provided with the third air outlet 34 not only makes the second air outlet 22 and the first air outlet 11 communicate, but also makes the path of the air flow between the second air outlet 22 and the first air outlet 11 further increase, that is, the air blown out from the second air outlet 22 passes through the inner second air duct 102 from the third air outlet 34 to the outer second air duct 102, and then along the outer second air duct 102 around more than three quarters of the outer circumference of the shell 30, and then from the first air outlet 11 to the outside of the fuselage 10, greatly improving the path length of the air through the second air duct 102, thereby improving the path sound attenuation capability of the second air duct 102. The setting form of the second air duct 102 in these examples is especially suitable for the case where the space in the fuselage 10 is large.

[0119] In some embodiments of the present application, in combination with Figure 3 , Figure 5 and Figure 15 As shown, the shell 30 is connected to the fuselage 10, the suction device 20 is arranged in the shell 30, the shell 30 is formed with a third air outlet 34, and the shell 30, the fuselage 10 and the muffler 40 are surrounded to form a part of the second air duct 102. That is, the fuselage 10 and the shell 30 of the present disclosure are wrapped on the outside of the suction device 20, so that the suction device 20 in the shell 30 is located in a part of the second air duct 102 surrounded by the shell 30 and the muffler 40 as a part of the shell 30, and the periphery of the shell 30 is surrounded by another part of the second air duct 102, thereby forming two parts of the second air duct 102 connected by the third air outlet 34 in the radial direction of the suction device 20, both parts of the second air duct 102 have a certain ability to convey airflow and path sound attenuation.

[0120] In some embodiments of the present application, as shown in Figure 2 and Figure 3As shown, the cleaning device 100 further comprises a second damper 60 connected to the suction device 20 at an end away from the first damper 50, which can also buffer the vibration force of the suction device 20 during the vibration of the suction device 20 and reduce the vibration noise generated by the suction device 20, and provides sufficient support for the suction device 20 so that the suction device 20 can be stably arranged in the housing 30; the second damper 60 cooperates with the first damper 50 to buffer the vibration of the suction device 20 in the up-down direction of the fuselage 10 and achieve the limiting of the suction device 20 in the housing 30.

[0121] In some examples, the second damper 60 is an elastic member, such as a rubber member or a silicone member, so as to ensure that the second damper 60 has sufficient elastic deformation performance and can fully buffer the vibration of the vibrating suction device 20 and reset the suction device 20 after stopping working.

[0122] In some specific examples, as shown in Figure 2 and Figure 3 , the housing 30 is provided with a second air inlet 31, the second damper 60 is arranged between the suction device 20 and the housing 30, and the second damper 60 is provided with a passage 61 to communicate the second air inlet 31 and the first air inlet 21, in these examples, the suction device 20 and the second damper 60 are arranged in the housing 30, when the second damper 60 is installed in place, the second damper 60 divides the space in the housing 30 into a second air duct 102 and a first air duct 101 as shown in Figure 3 , Figure 15 and Figure 16 , and a suction passage in the suction device 20, when the first damper 50 is installed in place and pressed against the suction device 20, the lower part of the suction device 20 abuts against the second damper 60, so that the position of the suction device 20 in the housing 30 is relatively fixed, and the suction device 20 has a certain vibration allowance during working.

[0123] In other specific examples, the second damper 60 divides the first air duct 101 and the second air duct 102, that is, the second damper 60 is part of the housing 30, when it is installed at the lower part of the suction device 20, the outer surface of the second damper 60 serves as part of the side surface of the housing 30, so that the second damper 60 also forms part of the first air duct 101 between the second damper 60 and the fuselage 10, thereby saving the processing cost of the housing 30.

[0124] In some embodiments of the utility model, as shown in Figure 18As shown, the cleaning device 100 further comprises a rectifying member 70 arranged at the first air outlet 11 and / or the second air outlet 22. The rectifying member 70 can make the flow rate of the air flow at the two air outlets more uniform, thereby reducing the sharp noise caused by too fast air flow.

[0125] In some examples, the rectifying member 70 is provided with a through hole, and the porosity of the through hole is greater than or equal to 80%. When the porosity of the through hole is less than 80%, the resistance of the air flow flowing through the through hole is too large, which affects the air flow rate of the first air outlet 11 and / or the second air outlet 22. By setting the porosity of the through hole to be greater than or equal to 80%, the air flow can pass through uniformly and have a suitable air flow rate, which facilitates smooth suction work of the suction device 20. In specific examples, the porosity of the through hole is set to be 80% to 90%, such as 80%, 83%, 85%, 87%, 90%, and the like, so that not only a uniform speed and a good rectifying effect can be achieved, but also a suitable air flow rate can be achieved.

[0126] In some examples, under the condition of a wind speed of 5 meters per second, the wind resistance design of the rectifying member 70 is less than 1000 Pa and greater than 10 Pa, so that the air flow passing through the rectifying member 70 can have a required air flow rate. For example, in specific examples, the wind resistance design of the rectifying member 70 is 100 Pa, 200 Pa, 300 Pa.

[0127] In specific examples, as shown, Figure 18 The rectifying member 70 at the first air outlet 11 is referred to as a first rectifying member 71, and the rectifying member 70 at the second air outlet 22 is referred to as a second rectifying member 72. Then, the air discharged from the second air outlet 22 of the suction device 20 can pass through the second rectifying member 72 for rectification and then flow into the second air duct 102; the air discharged from the second air duct 102 to the first air outlet 11 can pass through the first rectifying member 71 for rectification and then be discharged to the outside of the machine body 10.

[0128] In other examples, the second air outlet 22 of the suction device 20 is located in the circumferential direction of the suction device 20. Then, a circle of rectifying members 70 can be arranged between the outer circumference of the suction device 20 and the shell 30, so that the air discharged from the second air outlet 22 of the suction device 20 is fully rectified and then flows into the second air duct 102 outside the third air outlet 34 of the shell 30.

[0129] In some embodiments of the present application, the cleaning device 100 further comprises a sound absorption and noise reduction member 80 as shown in Figure 19 The sound absorption and noise reduction member 80 is arranged in at least one of the first air duct 101 and the second air duct 102. In the present disclosure, by arranging the sound absorption and noise reduction member 80 in each air duct, the air flow passing through each air duct can be effectively silenced, the sound waves generated by the air flow passing through can be absorbed, the flow-induced regenerative noise can be reduced, and the sound reduction effect can be improved.

[0130] In some examples, the sound-absorbing and noise-reducing component 80 is disposed on the inner wall of the first air duct 101 or the second air duct 102, for example, by pasting or by interference fit in the air duct, thereby greatly absorbing the noise of the sound waves flowing through the first air duct 101 and greatly absorbing the noise of the sound waves flowing through the second air duct 102.

[0131] In a specific example, the sound-absorbing and noise-reducing component 80 is arranged on the bottom wall of the air duct, which effectively prevents the component 80 from falling into the air duct due to gravity and blocking it, avoids the component 80 falling and affecting airflow, and also saves on the arrangement cost of the component 80. In other specific examples, such as Figure 19 As shown, the sound-absorbing and noise-reducing component 80 includes a first sound-absorbing cotton 81 disposed at the upper part of the air duct and a second sound-absorbing cotton 82 disposed at the lower part of the air duct. Airflow can pass through the flow channels where the first sound-absorbing cotton 81 and the second sound-absorbing cotton 82 are arranged facing each other, and the sound waves of the flowing airflow are effectively absorbed, further optimizing the sound wave performance of the whole machine. In other examples, when the space of the air duct (such as the first air duct 101 and the second air duct 102) is large enough, a whole ring of sound-absorbing cotton can be arranged in the air duct, thereby fully absorbing the sound of the flowing airflow, which has a good sound absorption effect and eliminates the risk of falling into the air duct and blocking it.

[0132] In some examples, the thickness of the sound-absorbing and noise-reducing component 80 is greater than or equal to 8 mm, thereby enabling the sound-absorbing and noise-reducing component 80 to have sufficient sound wave absorption effect and effectively prevent sound waves in the air duct from propagating to the outside of the air duct. For example, in specific examples, the thickness of the sound-absorbing and noise-reducing component 80 is 8 mm, 10 mm, 15 mm, 20 mm, 25 mm, 30 mm, etc.

[0133] In some embodiments of this utility model, such as Figure 20 As shown, the cleaning equipment 100 also includes multiple soundproof walls 90, which are spaced apart on the body 10. One layer of soundproof wall 90 forms a first soundproof cavity with the body 10 and the silencer 40; two adjacent layers of soundproof walls 90 form a second soundproof cavity with the body 10. This allows the suction device 20 to be located within the inner layer of the body 10, ensuring that the noise generated by the suction device 20 is firmly contained within the body 10. When the noise is transmitted outward, it must pass through the multiple sound-absorbing structures, effectively preventing noise from being transmitted to the outside of the body 10 through the internal structure. For example, in a specific example, the multiple soundproof walls 90 include a first soundproof wall 91 located near the silencer 40 and a second soundproof wall 92 connected to the body 10. The first soundproof wall 91 can be connected to the body 10 or to the silencer 40, thereby realizing the multi-layered sound-absorbing structure of this disclosure.

[0134] In summary, the disclosure can not only realize the vibration noise elimination of the suction device 20, but also realize the pneumatic noise elimination, path noise elimination and multi-layer structure noise elimination and sound insulation, finally realize the wide fixed frequency noise elimination and multi-frequency noise elimination of the cleaning equipment 100, realize the significant noise reduction, make the noise control scheme of the whole machine effective and reliable, and make the space utilization in the whole machine reasonable, the noise elimination structure relatively simple and the processing convenient.

[0135] The cleaning system 1000 of the disclosure is described below.

[0136] As shown in Figure 21 The cleaning system 1000 includes the base station 600 and the cleaning equipment 100 of the foregoing examples, and the base station 600 is used for maintaining the cleaning equipment 100. The base station 600 includes a parking position 610, and the cleaning equipment 100 can be parked in the parking position 610.

[0137] Since the cleaning system 1000 of the disclosure has the cleaning equipment 100, it also has the beneficial effects of the cleaning equipment 100, which are not described here. In addition to this, the maintenance of the cleaning equipment 100 by the base station 600 includes but is not limited to charging, dust collection, cleaning of the cleaning parts of the cleaning equipment 100, replenishment of clean water for the cleaning equipment 100, replenishment of maintenance liquid, and pumping of sewage from the cleaning equipment 100. The above maintenance types are only exemplary descriptions and are not a limitation of the disclosure.

[0138] The terms "first", "second", "third", "fourth", "fifth" in the utility model are only for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second", "third", "fourth", "fifth" can explicitly or implicitly include one or more of the features.

[0139] In the description of the disclosure, the meaning of "a plurality of" is two or more, unless otherwise explicitly and specifically limited.

[0140] In the case of not contradicting each other, the person skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples.

[0141] The above is only a specific embodiment of the disclosure, but the protection scope of the disclosure is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical range disclosed by the disclosure, and these modifications or replacements should be covered within the protection scope of the disclosure. Therefore, the protection scope of the disclosure should be subject to the protection scope of the claims.

Claims

1. A cleaning device, characterized in that, include: The body has a suction port and a first air outlet; A suction device has a first air inlet and a second air outlet; the first air inlet and the suction port are connected by a first air duct, and the suction device is used to generate a suction airflow to suck up dirt from the surface of the object being cleaned through the first air duct; the second air outlet is connected to the first air outlet through a second air duct to discharge the airflow generated by the suction device to the outside through the second air duct. A silencer, comprising multiple silencing chambers, the inlets of which are connected to the second air duct; some of the silencing chambers are provided with sound insulation components; A first vibration damper is disposed between the suction device and the silencer; Wherein, the first vibration damper covers at least a portion of the entrance to the anechoic cavity with a sound insulation component, and the sound insulation component cooperates with the first vibration damper to form at least one anechoic path in the anechoic cavity; In the depth direction of the anechoic cavity, the first vibration damper and the sound insulation component are spaced apart and staggered, and the projections of the first vibration damper and the sound insulation component in the depth direction of the anechoic cavity at least partially overlap, so that the length of at least one anechoic path in the anechoic cavity is greater than the depth of the anechoic cavity.

2. The cleaning equipment as described in claim 1, characterized in that, The cleaning device includes a housing disposed on the body of the machine. The housing is located outside the suction device. The silencer is formed on the side of the housing near the suction device. The silencer is a cavity structure facing the opening of the suction device.

3. The cleaning equipment as described in claim 1, characterized in that, The longest silencing path of the silencing cavity is greater than 2mm and less than 15mm.

4. The cleaning equipment as described in claim 1, characterized in that, When multiple sound insulation components are provided in the same anechoic cavity, the multiple sound insulation components are arranged at intervals.

5. The cleaning equipment as described in claim 4, characterized in that, At least two of the sound insulation components are staggered along the depth direction of the anechoic cavity.

6. The cleaning equipment as described in claim 1, characterized in that, The longest silencing path lengths of at least some of the multiple silencing cavities are different; or, the longest silencing path lengths of the multiple silencing cavities are all different; or, the depths of the multiple silencing cavities are the same; or, at least some of the multiple silencing cavities have different depths.

7. The cleaning equipment as described in any one of claims 1 to 6, characterized in that, The first air outlet is located away from the second air outlet on the body of the unit; and / or, The first air outlet includes two, which are spaced apart on the body and are located away from the second air outlet on the body.

8. The cleaning equipment as described in any one of claims 1 to 6, characterized in that, It also includes a rectifier, which is disposed at the first air outlet and / or the second air outlet.

9. The cleaning equipment as described in claim 8, characterized in that, The rectifier is provided with through holes, and the porosity of the through holes is greater than or equal to 80%.

10. A cleaning system, characterized in that, The system includes a base station and the cleaning equipment as described in any one of claims 1-9, wherein the base station is used for maintaining the cleaning equipment; the base station includes a docking station where the cleaning equipment can be docked.

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