Noise reduction structure of machine core assembly and cleaning equipment

Abstract

A noise reduction structure of a machine core assembly comprises a shell used for installing the machine core assembly, an air inlet and an air outlet are formed in the two sides of the shell respectively, a first isolation part and a second isolation part are arranged in the shell, the first isolation part extends into the shell from one side of the air inlet, and the second isolation part extends into the shell from the other side of the air inlet. An air inlet channel is formed between the first isolation part and one set of two adjacent inner side faces of the shell, the second isolation part extends into the shell from one side of the air outlet, and an air outlet channel is formed between the second isolation part and the other set of two adjacent inner side faces of the shell. According to the noise reduction structure of the machine core assembly, the first isolation part and the second isolation part are arranged in the shell so that the air inlet channel and the air outlet channel which are circuitously communicated can be formed in the shell, the noise reduction structure is similar to a labyrinth structure, and the air channels sequentially comprise the air inlet, the air inlet channel, the internal air channel of the machine core assembly, the air outlet channel and the air outlet; the noise propagation path can be prolonged to a great extent, and the noise reduction effect of the air duct is maximized. The utility model further provides cleaning equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of noise reduction of high-pressure cleaning machines, in particular to a noise reduction structure of a core component and a cleaning device. Background Art

[0002] A high-pressure cleaner is a machine that uses a high-pressure plunger pump to generate high-pressure water to wash the surface of an object through a power device. It can remove dirt and wash it away to achieve the purpose of cleaning the surface of an object. Because it uses high-pressure water to clean dirt, high-pressure cleaning is also recognized by the world as one of the most scientific, economical and environmentally friendly cleaning methods.

[0003] As people's quality of life and living standards continue to improve, people have higher and higher requirements for living environment, private transportation and sanitary conditions. High-pressure cleaning is mainly used for cleaning home exterior walls, balconies, courtyards, cars, bicycles and gardening tools to improve the cleanliness of people's living environment, transportation and gardening tools. Although high-pressure cleaning machines have gradually become a good helper for people to clean the environment, they are very noisy when used, especially high-pressure cleaning machines driven by motor pumps, which are easy to cause noise pollution.

[0004] The silencing method used by the core components of existing high-pressure cleaning machines is that the motor pump component contacts the wind shield through a shock-absorbing structure to reduce the noise between the motor pump and the wind shield. The wind shield has a certain isolation effect on the noise generated by the motor pump, and the wind shield is designed with an air outlet duct inside the wind shield. There is silencer cotton in the duct to perform secondary silence on the outlet air. This wind shield component consists of a wind shield, a wind shield cover and a cover plate. The three are assembled to form an air inlet structure with a certain gap. This wind shield component will cause resonance and generate noise during the operation of the machine, reducing the silencing effect. In addition to the wind shield component, the core component has no other silencing structures or measures, so it still cannot fully meet the silencing requirements. Long-term use may cause hearing damage. Utility Model Content

[0005] In view of this, the utility model provides a noise reduction structure and cleaning equipment for a movement assembly, by respectively arranging a first isolation portion and a second isolation portion in a shell to form a circuitously connected air inlet channel and air outlet duct in the shell, similar to a maze structure, and the air ducts are arranged in sequence of an air inlet, an air inlet duct, an internal air duct of the movement assembly, an air outlet duct and an air outlet, which can extend the noise propagation path to a great extent and ensure that the noise reduction effect of the air duct is maximized.

[0006] A noise reduction structure for a movement component comprises a shell for installing the movement component, wherein an air inlet and an air outlet are respectively arranged on two sides of the shell, and a first isolation portion and a second isolation portion are arranged in the shell, wherein the first isolation portion extends from one side of the air inlet into the shell, and an air inlet duct is formed between the first isolation portion and a group of two adjacent inner side surfaces of the shell, and the second isolation portion extends from one side of the air outlet into the shell, and an air outlet duct is formed between the second isolation portion and another group of two adjacent inner side surfaces of the shell.

[0007] According to the noise reduction structure of the movement assembly of the utility model, a first isolating portion and a second isolating portion are respectively arranged in the shell to form a circuitously connected air inlet channel and air outlet duct in the shell, similar to a maze structure, and the air ducts are arranged in sequence of the air inlet, the air inlet duct, the internal air duct of the movement assembly, the air outlet duct and the air outlet, which can extend the noise propagation path to the greatest extent and ensure that the noise reduction effect of the air duct is maximized.

[0008] In one embodiment, the first isolation portion extends in a direction parallel to two adjacent inner side surfaces of the shell, and a mounting groove for installing the movement assembly is provided in the shell, and the shape of the mounting groove is consistent with the appearance of the movement assembly. The second isolation portion extends in a direction parallel to the adjacent two sides of the mounting groove.

[0009] Specifically, the first isolation portion and the second isolation portion extend in a circuitous manner along the inner side surface of the shell and the two sides of the installation groove, respectively, which can greatly extend the length of the air inlet duct and the air outlet duct, thereby further extending the noise propagation path to further improve the noise reduction effect.

[0010] In one embodiment, two bottom surfaces in the shell connected to the first isolation part and the second isolation part are each provided with a plurality of cavities.

[0011] By arranging a plurality of cavities on the two bottom surfaces of the shell, the contact area when the airflow passes through can be increased, and energy can be absorbed so that part of the sound energy is converted into kinetic energy and dissipated, thereby playing a role in noise reduction.

[0012] In one embodiment, a plurality of cavities are arranged to form a honeycomb structure.

[0013] Multiple cavities are arranged to form a honeycomb structure, which is more conducive to improving the sound insulation effect.

[0014] In one embodiment, the air inlet is provided with an air inlet decorative plate, and the air outlet is provided with an air outlet decorative plate.

[0015] Providing an air inlet decorative plate and an air outlet decorative plate at the air inlet and the air outlet respectively is beneficial to improving the dustproof effect and overall aesthetics of the noise reduction structure of the movement assembly.

[0016] In one embodiment, the shell includes a first shell and a second shell that are detachably connected, the first isolation portion and the second isolation portion are correspondingly arranged in the first shell and the second shell, and the air inlet and the air outlet are correspondingly arranged on both sides of the first shell and the second shell.

[0017] By providing a first shell and a second shell that are detachably connected, the assembly and disassembly of the movement assembly is simple and convenient, and the maintainability is high, thereby saving costs.

[0018] In one embodiment, shock-absorbing pads are provided at positions on the first shell and the second shell for connecting with the movement assembly.

[0019] By arranging shock-absorbing pads between the first shell and the movement assembly and between the second shell and the movement assembly, it can be ensured that the first shell and the second shell have a shock-absorbing effect after being assembled to avoid resonance, thereby further improving the noise reduction effect.

[0020] In one embodiment, a switch component for electrically connecting to the movement component is disposed on the second housing.

[0021] By arranging the switch assembly to be electrically connected to the movement assembly, the switch control of the movement assembly is extremely simple and convenient, and the structure is simple and compact.

[0022] In one embodiment, a water outlet is provided on the second shell, and a sound-absorbing pad is provided at the water outlet.

[0023] Specifically, the sound-absorbing pad at the water outlet is made of soft rubber material, which is fastened to the second shell and assembled with the movement assembly to form a sealing structure, thereby reducing the noise at the water outlet, achieving the effect of sound absorption and further improving the noise reduction effect.

[0024] The cleaning device of the second aspect of the utility model comprises the noise reduction structure of the core assembly.

[0025] Obviously, the cleaning device according to the utility model has all the advantages and technical effects of the noise reduction structure of the above-mentioned core assembly because it includes the noise reduction structure of the above-mentioned core assembly.

[0026] The noise reduction structure and cleaning equipment of the movement assembly provided by the utility model respectively arrange the first isolating part and the second isolating part in the shell to form a circuitously connected air inlet channel and air outlet duct in the shell, which is similar to a maze structure. The air ducts are arranged in sequence of the air inlet, the air inlet duct, the internal air duct of the movement assembly, the air outlet duct and the air outlet, which can extend the propagation path of the noise to a great extent and ensure that the noise reduction effect of the air duct is maximized. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 The split structure of the noise reduction structure of the movement assembly of the embodiment of the utility model is schematically shown.

[0029] Figure 2 The diagram schematically shows the direction of the internal air duct of the noise reduction structure of the core assembly of the embodiment of the utility model.

[0030] Figure 3 The rib structure inside the air hood in the embodiment of the utility model is schematically shown. DETAILED DESCRIPTION

[0031] The following will describe in detail a specific embodiment of the utility model in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the description of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] In the description of the present utility model, unless otherwise clearly specified and limited, the terms "set", "install", "connection" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0033] The terms "one side", "two sides", "inner side", "side", "inner", "bottom", "top", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of description and simplified description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the utility model.

[0034] The terms "first", "second", etc. are merely used to distinguish elements of similar nature, and do not indicate or imply relative importance or a particular order.

[0035] The terms "comprises," "comprising," or any other variations thereof, are intended to cover a non-exclusive inclusion of the elements listed and may also include additional elements not expressly listed.

[0036] First embodiment

[0037] like Figures 1 to 3 As shown, the noise reduction structure of the core assembly of the first embodiment of the utility model includes:

[0038] The shell 20 in which the core assembly 10 is installed has an air inlet 21 and an air outlet 22 on both sides of the shell 20, and a first isolating portion 23 and a second isolating portion 24 are provided in the shell 20, wherein the first isolating portion 23 extends from one side of the air inlet 21 into the shell 20, and an air inlet duct 231 is formed between the first isolating portion 23 and a group of two adjacent inner side surfaces of the shell 20, and the second isolating portion 24 extends from one side of the air outlet 22 into the shell 20, and an air outlet duct 241 is formed between the second isolating portion 24 and another group of two adjacent inner side surfaces of the shell 20. Specifically, in the present embodiment, the first isolating portion 23 and the second isolating portion 24 are both rib plate structures.

[0039] According to the noise reduction structure of the core assembly of the embodiment of the utility model, the first isolation part 23 and the second isolation part 24 are respectively arranged in the shell 20 to form a circuitous air inlet channel 231 and an air outlet channel 241 in the shell 20, which is similar to a maze structure. Figure 2 The arrow direction schematically indicates the airflow direction, and the air duct directions are the air inlet 21, the air inlet duct 231, the internal air duct 101 of the movement component, the air outlet duct 241 and the air outlet 22, which can greatly extend the noise propagation path and ensure that the noise reduction effect of the air duct is maximized.

[0040] like Figure 2 and Figure 3 As shown, specifically, in this embodiment, the first isolating portion 23 extends in a direction parallel to the adjacent two inner side surfaces of the housing 20, and a mounting groove 203 for mounting the core assembly 10 is provided in the housing 20, and the shape of the mounting groove 203 is consistent with the shape of the core assembly 10, and the second isolating portion 24 extends in a direction parallel to the adjacent two sides of the mounting groove 203. Specifically, the first isolating portion 23 and the second isolating portion 24 extend in a circuitous manner along the inner side surface of the housing 20 and the two sides of the mounting groove 203, respectively, which can greatly extend the length of the air inlet duct 231 and the air outlet duct 241, thereby further extending the propagation path of the noise to further improve the noise reduction effect.

[0041] like Figure 2 and Figure 3As shown, specifically, in this embodiment, the two bottom surfaces connected to the first isolation part 23 and the second isolation part 24 in the shell 20 are provided with a plurality of cavities 204. By providing a plurality of cavities 204 on the two bottom surfaces in the shell 20, the contact area when the airflow passes through can be increased, and the energy is absorbed so that part of the sound energy is converted into kinetic energy and dissipated, thereby playing a role in noise reduction. Specifically, in this embodiment, a plurality of cavities 204 are arranged to form a honeycomb structure, which is more conducive to improving the noise reduction effect. Specifically, in this embodiment, the honeycomb structure is formed by the rib plate enclosure.

[0042] like Figure 1 As shown, specifically, in this embodiment, the air inlet 21 is provided with an air inlet decorative plate 25, and the air outlet 22 is provided with an air outlet decorative plate 26. Providing the air inlet decorative plate 25 and the air outlet decorative plate 26 at the air inlet 21 and the air outlet 22, respectively, is conducive to improving the dustproof effect and overall aesthetics of the noise reduction structure of the core assembly.

[0043] like Figure 1 As shown, specifically, in this embodiment, the housing 20 includes a first housing 201 and a second housing 202 that are detachably connected, the first isolating portion 23 and the second isolating portion 24 are correspondingly arranged in the first housing 201 and the second housing 202, and the air inlet 21 and the air outlet 22 are correspondingly arranged on both sides of the first housing 201 and the second housing 202. By providing the detachably connected first housing 201 and the second housing 202, the assembly and disassembly of the movement assembly 10 is simple and convenient, and the maintainability is high, thereby saving costs.

[0044] like Figure 1 As shown, specifically, in this embodiment, the first shell 201 and the second shell 202 are both provided with shock-absorbing pads 27 at positions for connecting with the movement assembly 10. By providing the shock-absorbing pads 27 between the first shell 201 and the movement assembly 10 and between the second shell 202 and the movement assembly 10, it can be ensured that the first shell 201 and the second shell 202 have a shock-absorbing effect after being assembled, and resonance is avoided, thereby further improving the noise reduction effect.

[0045] like Figure 1 and Figure 3 As shown, specifically, in this embodiment, a water outlet 205 is provided on the second shell 202, and a sound-absorbing pad 28 is provided at the water outlet 205. Specifically, the sound-absorbing pad 28 at the water outlet 205 is made of soft rubber material, is fastened and assembled on the second shell 202, and is assembled with the movement assembly 10 to form a sealing structure, thereby reducing the noise at the water outlet 205, achieving the effect of silencing, and further improving the noise reduction effect.

[0046] like Figure 1As shown, specifically, in this embodiment, the second housing 202 is provided with a switch assembly 29 for electrically connecting to the core assembly 10. By setting the switch assembly 29 to be electrically connected to the core assembly 10, the switch control of the core assembly 10 is extremely simple and convenient, and the structure is simple and compact.

[0047] Second embodiment

[0048] The cleaning device of the second embodiment of the utility model comprises the noise reduction structure of the core assembly.

[0049] Obviously, the cleaning device according to the utility model has all the advantages and technical effects of the noise reduction structure of the above-mentioned core assembly because it includes the noise reduction structure of the above-mentioned core assembly.

[0050] According to the above embodiments, it can be seen that the noise reduction structure and cleaning equipment of the movement assembly involved in the utility model, by respectively arranging the first isolation portion and the second isolation portion in the shell to form a circuitously connected air inlet channel, internal air duct and air outlet duct in the shell, similar to a maze structure, the air duct directions are the air inlet, the air inlet duct, the internal air duct of the movement assembly, the air outlet duct and the air outlet, which can extend the noise propagation path to a great extent and ensure that the noise reduction effect of the air duct is maximized.

[0051] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model shall be subject to the attached claims.

Claims

1. A noise reduction structure of a movement component, characterized in that: It comprises a shell for mounting a core assembly, an air inlet and an air outlet are respectively arranged on two sides of the shell, and a first isolation part and a second isolation part are arranged inside the shell; wherein, The first isolating portion extends from one side of the air inlet into the shell, and an air inlet duct is formed between the first isolating portion and a group of two adjacent inner side surfaces of the shell; The second isolating portion extends from one side of the air outlet into the shell, and an air outlet duct is formed between the second isolating portion and another group of two adjacent inner side surfaces of the shell.

2. The noise reduction structure of the movement assembly according to claim 1, characterized in that: The first isolation portion extends in a direction parallel to a group of two adjacent inner side surfaces of the shell; The housing is provided with a mounting groove for mounting the core assembly, the shape of the mounting groove is consistent with the shape of the core assembly, and the second isolating portion extends in a direction parallel to adjacent two sides of the mounting groove.

3. The noise reduction structure of the movement assembly according to claim 1 or 2, characterized in that: Both bottom surfaces in the shell connected to the first isolation part and the second isolation part are provided with a plurality of cavities.

4. The noise reduction structure of the movement assembly as claimed in claim 3, characterized in that: A plurality of the cavities are arranged to form a honeycomb structure.

5. The noise reduction structure of the movement assembly according to claim 1 or 2, characterized in that: The air inlet is provided with an air inlet decorative plate, and the air outlet is provided with an air outlet decorative plate.

6. The noise reduction structure of the movement assembly according to claim 1 or 2, characterized in that: The shell includes a first shell and a second shell that are detachably connected, the first isolation portion and the second isolation portion are correspondingly arranged in the first shell and the second shell, and the air inlet and the air outlet are correspondingly arranged on both sides of the first shell and the second shell.

7. The noise reduction structure of the movement assembly according to claim 6, characterized in that: Shock-absorbing pads are provided at positions on the first shell and the second shell for connecting with the movement assembly.

8. The noise reduction structure of the movement assembly according to claim 6, characterized in that: The second housing is provided with a switch assembly for electrically connecting with the core assembly.

9. The noise reduction structure of the movement assembly according to claim 6, characterized in that: The second shell is provided with a water outlet, and a sound-absorbing pad is provided at the water outlet.

10. A cleaning device, characterized in that: A noise reduction structure comprising the movement assembly according to any one of claims 1 to 9.

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