Noise reduction structure of fabric cleaning machine and cleaning machine

Abstract

The utility model discloses a noise reduction structure of a fabric cleaning machine and the cleaning machine, and relates to the technical field of cleaning, the noise reduction structure of the fabric cleaning machine comprises a motor lower cover, a shell and an air inlet duct, a partition plate is arranged in the shell to divide an inner cavity of the shell into an upper cavity and a lower cavity, and a middle hole is formed in the middle of the partition plate; the air inlet duct penetrates through the side wall of the shell into the lower cavity of the shell, the end of the air inlet duct is in sealed communication with the middle hole, an air inlet connector is formed in the outer end of the air inlet duct, a plurality of second exhaust holes are formed in the side, close to the edge, of the partition plate, the air outlet frame comprises a frame body, a plurality of air outlets are formed in the frame body, and a first partition strip is arranged at the bottom edge; and the plurality of first parting strips are arranged along one direction. Induced air is sequentially shunted by the second exhaust holes and the air outlets and is shunted and output by the first division bars, and the air is dispersed under multi-stage shunting, so that the air noise is reduced.

Description

Technical Field

[0001] This utility model relates to the field of cleaning technology, and in particular to a noise reduction structure and a cleaning machine for fabric cleaning machines. Background Technology

[0002] A fabric cleaning machine is a specialized device for cleaning various fabric items. It uses high-pressure jet technology to spray a mixture of cleaning agent and water onto the stains to dissolve and remove them. Through brushing and suction, the mixture of stains and water is then drawn into a wastewater tank, keeping the fabric dry and clean. Fabric cleaning machines are used to clean various fabric items such as carpets, upholstered furniture, cushions, and bay window mats. They are simple and convenient to operate, and can quickly and effectively complete the cleaning of fabric items.

[0003] However, the fabric cleaning machine relies on a fan to draw in the dirt, and the fan generates a lot of noise during use, which affects the user experience. Research and development is still needed to optimize the air duct structure of the fabric cleaning machine to reduce the noise.

[0004] Therefore, it is necessary to invent a noise reduction structure for a fabric cleaning machine and a cleaning machine in general to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a noise reduction structure for a fabric cleaning machine and the cleaning machine itself, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a noise reduction structure for a fabric cleaning machine, comprising:

[0007] The motor lower cover includes a housing and an air inlet duct. The housing has an internal partition that divides the inner cavity of the housing into an upper cavity and a lower cavity. A central hole is provided in the middle of the partition. The air inlet duct passes through the side wall of the housing into its lower cavity and its end is sealed and connected to the central hole. An air inlet interface is provided at the outer end of the air inlet duct. Several second air outlet holes are provided on the side of the partition near the edge.

[0008] An air outlet frame includes a frame body with multiple air outlets and a first partition strip at the bottom edge. The first partition strip is configured as several strips and arranged in one direction.

[0009] The lower cavity end of the housing is fixed to the upper part of the air outlet frame, and the air outlet is located in the lower cavity of the housing.

[0010] Optionally, it also includes a fan, which includes a motor, an impeller and a shroud. The impeller is coaxially mounted on the output end of the motor and located inside the shroud. The side wall of the shroud has several first-row air holes. The first-row air holes of the shroud are located in the upper cavity of the housing, and the end of the shroud near the central hole is sealed and connected to the central hole, thus sealing the end of the upper cavity.

[0011] Optionally, the upper part of the frame is provided with an interface for sealing connection with the lower cavity of the housing.

[0012] Optionally, the second exhaust vent is offset from the air outlet.

[0013] Optionally, the frame is provided with a heat dissipation vent, which is located on the outside of the interface.

[0014] Optionally, it also includes a motor cover, which covers the outside of the fan and forms a heat cavity between the motor cover and the fan, and the motor cover has a heat exhaust port communicating with the heat cavity.

[0015] Optionally, it also includes a motor duct cover, which is connected between the heat exhaust port and the heat dissipation port of the motor cover.

[0016] Optionally, the bottom edge of the frame is further provided with a second partition strip, which is provided in multiple ways and arranged in one direction, and the second partition strip is located on the side close to the heat dissipation vent.

[0017] A cleaning machine includes a main housing, a water pump, a boiler, a clean water tank, and a wastewater tank. The water pump and the boiler are both installed inside the cavity of the main housing. The clean water tank and the wastewater tank are installed on the main housing. The clean water tank, the water pump, and the boiler are connected in sequence through pipes. A suction pipe is installed inside the wastewater tank. The suction pipe includes a wastewater suction pipe and a suction air pipe.

[0018] Optionally, it also includes a hose, a water outlet pipe, a handle, and a brush head, wherein the hose, handle, and brush head are connected in sequence, the water outlet pipe is installed on the hose and its two ends are respectively connected to the brush head and the boiler output end, the end of the hose is connected to the sewage suction pipe, and the sewage suction air pipe is connected to the air inlet.

[0019] The technical effects and advantages of this utility model are as follows:

[0020] This utility model fabric cleaning machine uses a fan with an added motor cover and air outlet frame. The air enters through a sealed air inlet duct, is then diverted by multiple second-row air holes, multiple air outlets, and output from multiple first partitions. The air is dispersed through multiple stages of diversion, thereby reducing wind noise and improving the technical problem of wind noise easily transmitted to the outside, resulting in a poor user experience. Furthermore, the air is guided by various channels to avoid chaotic airflow and wind noise, further reducing noise. Attached Figure Description

[0021] Figure 1 This is an exploded structural diagram of the fabric cleaning machine of this utility model.

[0022] Figure 2 This is a schematic diagram of the vertical structure of the noise reduction structure of this utility model.

[0023] Figure 3 This is a schematic diagram of the vertical structure of the fan of this utility model.

[0024] Figure 4 This is a schematic diagram of the vertical structure of the motor lower cover of this utility model.

[0025] Figure 5 This is a schematic diagram of the vertical structure of the air outlet frame of this utility model.

[0026] Figure 6 This is a bottom view of the air outlet frame structure of this utility model.

[0027] Figure 7 This is a schematic diagram of the rear vertical structure of the fabric cleaning machine of this utility model.

[0028] Figure 8 This is a cross-sectional structural diagram of the fabric cleaning machine of this utility model.

[0029] Figure 9 This is a schematic diagram of the explosion structure of the noise reduction structure of this utility model.

[0030] Figure 10 This is a schematic diagram showing the disassembled and partially cross-sectional structure of the noise reduction structure of this utility model.

[0031] Figure 11 This is a cross-sectional view of the noise reduction structure of this utility model.

[0032] Figure 12 This is a cross-sectional view of the noise reduction structure of this utility model.

[0033] In the diagram: 1. Main housing; 101. Front housing; 102. Rear housing; 103. Base; 104. Handle seat; 2. Fan; 201. Motor; 202. Impeller; 203. Fan cover; 204. First air vent; 3. Motor lower cover; 301. Housing; 302. Air inlet duct; 303. Air inlet interface; 304. Partition plate; 305. Central hole; 306. Second air vent; 4. Air outlet frame; 401. Frame; 402. Air duct; 403. Interface; 404. Air outlet; 405. Heat dissipation 406. First partition bar; 407. Second partition bar; 5. Motor cover; 6. Motor air duct cover; 7. Air outlet; 8. Clean water tank; 9. Sewage tank; 10. Water pump; 11. Boiler; 12. Hose connector; 13. Hose; 14. Water outlet pipe; 15. Handle; 16. Brush head; 17. Sewage suction pipe; 18. Sewage suction air pipe; 19. Sewage interface; 20. Air pipe interface; 21. Casters; 22. Pulleys; 23. Control panel; 24. Rear seat; 25. Cable hook; 26. Brush head holder. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0036] In this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," "link," and "fix" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection; a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0038] This utility model embodiment discloses a noise reduction structure for a fabric cleaning machine.

[0039] like Figure 1 and 9 As shown, it includes a fan 2, a motor lower cover 3, an air outlet frame 4, a motor cover 5, and a motor air duct cover 6. The fan 2, the motor lower cover 3, and the air outlet frame 4 are connected in sequence from top to bottom. The motor cover 5 covers the outside of the fan 2, and a heat cavity is formed between the motor cover 5 and the fan 2. The motor air duct cover 6 is connected to the heat cavity of the motor cover 5 and is used to guide and dissipate the heat generated by the fan 2.

[0040] like Figure 3 As shown, the fan 2 includes a motor 201, an impeller 202, a shroud 203, and a first row of air holes 204. The impeller 202 is rotatably mounted inside the shroud 203. The output end of the motor 201 is coaxially connected to the impeller 202. The shroud 203 and the two ends corresponding to the two ends of the impeller 202 are both open. The first row of air holes 204 are set as a plurality of holes opened on the side wall of the shroud 203. The plurality of first row of air holes 204 are arranged in a ring array along the circumferential surface of the side wall of the shroud 203.

[0041] Motor 201 drives impeller 202 to rotate and draw air. The air enters the shroud 203 from the end away from motor 201 and is discharged from the first exhaust hole 204 and the other end of the shroud 203. The air is dispersed from the two parts, which disperses the wind force and reduces wind noise. The exhaust air passes through motor 201, which helps to cool motor 201.

[0042] like Figure 4 and 10 As shown, the motor lower cover 3 includes a housing 301 and an air inlet duct 302. The housing 301 has a partition 304 inside, which divides the inner cavity of the housing 301 into an upper cavity and a lower cavity. The ends of the upper cavity and the lower cavity of the housing 301 are open. The air inlet duct 302 is located in the lower part of the housing 301. An air inlet interface 303 is opened at the outer end of the air inlet duct 302. A central hole 305 is opened in the middle of the partition 304. The air inlet duct 302 passes through the side wall of the housing 301 to its lower cavity, and the end of the air inlet duct 302 is sealed and connected to the central hole 305. Several second exhaust holes 306 are opened on the side of the partition 304 near the edge for the exhaust output of the first exhaust hole 204.

[0043] like Figure 5As shown, the air outlet frame 4 includes a frame body 401. The surface of the frame body 401 is provided with an interface 403 for sealing connection with one end of the housing 301. The frame body 401 is also provided with an air duct 402. One end of the air duct 402 extends to the inner middle of the interface 403. The frame body 401 is provided with an air outlet 404. The air outlet 404 is an arc-shaped strip opening. Multiple air outlets 404 are provided, and they are all located inside the interface 403. The frame body 401 is also provided with a heat dissipation vent 405, which is located outside the interface 403.

[0044] like Figure 6 As shown, the bottom edge of the frame 401 is provided with a first partition 406, which is provided in multiple ways and arranged in one direction. The bottom edge of the frame 401 is also provided with a second partition 407, which is provided in multiple ways and arranged in one direction. The second partition 407 is located on the side close to the heat dissipation port 405. The multiple first partitions 406 and the multiple second partitions 407 are used to disperse the output air and reduce wind noise. The arrangement of the first partitions 406 and the second partitions 407 allows the output air to be output from two directions, further dispersing the airflow and reducing wind noise.

[0045] It should be noted that the bottom opening of the air inlet duct 302 is used for a sealed connection with the air duct 402. The bottom opening of the air inlet duct 302 reduces the amount of material used in the product, thereby reducing costs.

[0046] like Figure 2 As shown, the motor cover 5 is also provided with a sewage inlet 19 and an air pipe inlet 20, which are used for the flow of sewage and the flow of air respectively. The motor cover 5 is also provided with a heat exhaust port for the heat dissipation of the motor 201.

[0047] This utility model also discloses the installation method of the noise reduction structure of the fabric washing machine:

[0048] like Figure 2 , 9 As shown in Figure 10, the motor cover 5 encloses the motor 201, the fan cover 203 is placed in the upper cavity of the housing 301, and the bottom end of the fan cover 203 is sealed and connected to the central hole 305, and the top of the fan cover 203 is sealed and connected to the top end of the housing 301. The top end of the housing 301 is detachably fixed to the motor cover 5. The detachable fixing includes, but is not limited to, fixing with buckles. The air pipe interface 20 of the motor cover 5 is sealed and connected to the air inlet interface 303. The bottom end of the housing 301 is sealed and connected to the interface 403 of the air outlet frame 4, and the air inlet duct 302 is correspondingly sealed and connected to the air duct 402. One end of the motor air duct cover 6 is sealed and connected to the heat exhaust port of the motor cover 5, and the other end is sealed and connected to the heat dissipation port 405.

[0049] It should be noted that after installation, the second exhaust vent 306 is offset from the air outlet 404. That is, the exhaust air passes through the second exhaust vent 306 and enters the lower cavity of the housing 301. It comes into contact with the part of the frame 401 where the air outlet 404 is not located, which acts as a buffer. Then, it moves in the lower cavity of the housing 301 and is discharged along the arc-shaped trajectory of the air outlet 404. This avoids the airflow direction being vertically straight out of the air outlet 404, further reducing wind noise. In addition, the air outlet 404 is an arc-shaped strip, and the exhaust air is output along its arc-shaped trajectory. The arc-shaped structure can further reduce the wind force and further reduce wind noise.

[0050] This utility model also records the airflow trajectory:

[0051] like Figure 6 , 10 As shown in Figure 11, the blower 2 is used for suction of dirt in the fabric cleaning machine. The air enters from the air inlet 303, passes through the air inlet duct 302 and the middle hole 305 in sequence, enters the hood 203 and is discharged from the first exhaust hole 204. It is then diverted through multiple second exhaust holes 306 and discharged. After flowing in the lower cavity of the housing 301, it is diverted from the exhaust holes 404. Furthermore, the airflow is diverted to the first partition 406 and the second partition 407 respectively, and is output by several first partitions 406 and several second partitions 407.

[0052] The induced airflow is guided through a sealed channel, multi-layered diversion, and with the second air vent 306 and the air outlet 404 staggered to avoid direct discharge, the impact force of the airflow is dispersed or reduced in multiple stages to achieve the purpose of noise reduction.

[0053] like Figure 10 and 12 As shown, part of the air drawn by the fan 2 is also discharged from the top of the shroud 203. The airflow flows through the motor 201, carrying away the heat generated by the motor 201 during operation, and is then guided out through the motor duct cover 6. The air drawn by the fan 2 plays a role in heat dissipation for its own operation, thereby improving the working stability of the fan 2.

[0054] This utility model embodiment discloses a fabric cleaning machine.

[0055] like Figure 1 and 7 As shown, the fabric cleaning machine includes a noise reduction structure, a main housing 1, a clean water tank 8, a wastewater tank 9, a water pump 10, and a boiler 11.

[0056] The main housing 1 includes a front housing 101, a rear housing 102, a handle seat 104, and a base 103, which are respectively provided at the front, rear, top, and bottom and can be detachably installed to form the main housing 1. A cavity is formed inside the main housing 1, and installation positions are reserved on the left and right sides of the main housing 1 for the detachable installation of the clean water tank 8 and the sewage tank 9.

[0057] Both the water pump 10 and the boiler 11 are installed in the cavity of the main housing 1, and are used to draw clean water and heat water, respectively. It should be noted that the boiler 11 can heat water in two modes: hot water and hot steam, for hot water cleaning and steam cleaning.

[0058] like Figure 8 As shown, a hose connector 12 is installed on the main housing 1, and the inner end of the hose connector 12 is sealed and connected to the sewage interface 19.

[0059] like Figure 7 As shown, the outer end of the hose connector 12 is sealed with a hose 13, the end of the hose 13 is connected to a handle 15, the end of the handle 15 is connected to a brush head 16, and the hose 13 is provided with a water outlet pipe 14 inside, with the end of the water outlet pipe 14 near the brush head 16 connected to the water inlet of the brush head 16.

[0060] like Figure 1 and 8 As shown, the input end of the water pump 10 is connected to the inner cavity of the clean water tank 8, and the output end of the water pump 10 is connected to the outlet pipe 14 through the boiler 11 via a pipe. The water pump 10 draws clean water from the clean water tank 8, which is heated by the boiler 11 to form hot water or steam, or cold water that is not heated by the boiler 11 is introduced into the outlet pipe 14 and output by the brush head 16 for cleaning fabric products.

[0061] like Figure 8 and 9 As shown, a suction pipe is installed inside the sewage tank 9. The suction pipe includes a sewage suction pipe 17 and a sewage suction air pipe 18. The sewage suction pipe 17 has an inlet at the bottom and an outlet at the top. The sewage suction air pipe 18 has an inlet at the top and an outlet at the bottom. The inlet at the top of the sewage suction air pipe 18 is at a higher level than the outlet at the top of the sewage suction pipe 17, forming a height difference.

[0062] The bottom inlet of the sewage suction pipe 17 is sealed and connected to the sewage interface 19, and the bottom outlet of the sewage suction air pipe 18 is sealed and connected to the air pipe interface 20.

[0063] The working principle of the fabric cleaning machine is as follows: the water pump 10 draws water through the boiler 11 and sprays it out through the outlet pipe 14 and brush head 16 to contact the fabric products. The fan 2 draws in the sewage after cleaning the fabric products. The sewage flows back from the hose 13 and enters the sewage tank 9 through the hose connector 12, sewage interface 19 and sewage suction pipe 17 in sequence. The sewage sinks to the bottom of the sewage tank 9 under the action of gravity. Air is introduced into the suction air pipe 18 and discharged after being reduced by the noise reduction structure of the fabric cleaning machine.

[0064] like Figure 2As shown, the base 103 has an air outlet 7 for airflow discharge, and the base 103 has at least three air outlets 7, which correspond to the first partition 406 and the second partition 407 of the heat dissipation port 405, respectively.

[0065] like Figure 1 As shown, it also includes a control panel 23 for operating the fabric cleaning machine.

[0066] like Figure 1 As shown, the bottom of the base 103 is also equipped with wheels for moving the fabric cleaning machine. The wheels include casters 21 and pulleys 22, and there are two casters 21 and two pulleys 22. This ensures that the fabric cleaning machine has a turning function while reducing the number of casters 21 used, thereby reducing manufacturing costs.

[0067] Fabric cleaning machines also include at least a power cord for power supply.

[0068] like Figure 7 As shown, a rear seat 24 is also provided on the rear side of the main housing 1. The rear seat 24 is provided with a cord hook 25 and a brush head holder 26, which are used for storing the power cord and the handle 15, respectively.

[0069] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A noise reduction structure for a fabric cleaning machine, characterized in that, include: The motor lower cover (3) includes a housing (301) and an air inlet duct (302). The housing (301) is provided with a partition (304) to divide the inner cavity of the housing (301) into an upper cavity and a lower cavity. A central hole (305) is provided in the middle of the partition (304). The air inlet duct (302) penetrates the side wall of the housing (301) into its lower cavity and its end is sealed and connected to the central hole (305). An air inlet interface (303) is provided at the outer end of the air inlet duct (302). Several second air holes (306) are provided on the side of the partition (304) near the edge. The air outlet frame (4) includes a frame body (401), on which multiple air outlets (404) are provided, and a first partition (406) is provided at the bottom edge. The first partition (406) is configured as several and arranged in one direction. The lower cavity end of the housing (301) is fixed to the upper part of the air outlet frame (4), and the air outlet (404) is located in the lower cavity of the housing (301).

2. The noise reduction structure of a fabric cleaning machine according to claim 1, characterized in that: It also includes a fan (2), which includes a motor (201), an impeller (202) and a shroud (203). The impeller (202) is coaxially mounted on the output end of the motor (201) and located inside the shroud (203). The side wall of the shroud (203) is provided with a number of first air holes (204). The first air holes (204) of the shroud (203) are located in the upper cavity of the housing (301), and the end of the shroud (203) near the central hole (305) is sealed and connected to the central hole (305). The shroud (203) seals the end of the upper cavity.

3. The noise reduction structure of a fabric cleaning machine according to claim 1, characterized in that: The upper part of the frame (401) is provided with an interface (403) for sealing connection with the lower cavity of the housing (301).

4. The noise reduction structure of a fabric cleaning machine according to claim 1, characterized in that: The second exhaust vent (306) is offset from the air outlet (404).

5. The noise reduction structure of a fabric cleaning machine according to claim 3, characterized in that: The frame (401) has a heat dissipation vent (405) located outside the interface (403).

6. The noise reduction structure of a fabric cleaning machine according to claim 5, characterized in that: It also includes a motor cover (5), which covers the outside of the fan (2) and forms a hot cavity between the fan (2). The motor cover (5) has a heat exhaust port that communicates with the hot cavity.

7. The noise reduction structure of a fabric cleaning machine according to claim 6, characterized in that: It also includes a motor duct cover (6), which is connected between the heat exhaust port and the heat dissipation port (405) of the motor cover (5).

8. The noise reduction structure of a fabric cleaning machine according to claim 5, characterized in that: The bottom edge of the frame (401) is also provided with a second partition (407). The second partition (407) is provided in a plurality of strips arranged in one direction. The second partition (407) is located on the side close to the heat dissipation vent (405).

9. A cleaning machine, having the noise reduction structure of the fabric cleaning machine according to any one of claims 1-8, characterized in that: The system includes a main housing (1), a water pump (10), a boiler (11), a clean water tank (8), and a sewage tank (9). The water pump (10) and the boiler (11) are installed in the cavity of the main housing (1). The clean water tank (8) and the sewage tank (9) are installed on the main housing (1). The clean water tank (8), the water pump (10), and the boiler (11) are connected in sequence by pipes. The sewage tank (9) is equipped with a sewage suction pipe, which includes a sewage suction pipe (17) and a sewage suction air pipe (18).

10. A cleaning machine according to claim 9, characterized in that: It also includes a hose (13), a water outlet pipe (14), a handle (15), and a brush head (16). The hose (13), handle (15), and brush head (16) are connected in sequence. The water outlet pipe (14) is installed on the hose (13) and its two ends are connected to the brush head (16) and the output end of the boiler (11), respectively. The end of the hose (13) is connected to the sewage suction pipe (17), and the sewage suction air pipe (18) is connected to the air inlet (303).

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