A modular floor scrubber noise reduction system

Abstract

This invention discloses a modular floor scrubber noise reduction system, which includes a housing assembly, a noise reduction assembly, and a lubrication assembly. The housing assembly includes a transmission plate, a water-absorbing motor mounted on the transmission plate, an upper and lower noise reduction cover sleeved around the water-absorbing motor, a mounting plate connected to the lower noise reduction cover, and a silencer pipe mounted on the lower noise reduction cover. The noise reduction assembly includes a fixing plate, a support column mounted on the fixing plate, a slide cylinder hinged to the support column, a support rod slidably connected to the slide cylinder, a first spring, a center rod, a second spring, and a lubrication assembly. The modular floor scrubber noise reduction system of this invention can effectively reduce the noise of the water-absorbing motor, significantly reducing the noise of motor operation. The modular design is compatible with multiple motors, distributing the motor vibration force to each spring and also distributing the vertical force of the vibration to the horizontal direction. Large vibrations can automatically trigger lubrication compensation, lubricating the connection between the support rod and the slide cylinder, extending the service life.

Description

Technical Field

[0001] This invention relates to the technical field of floor scrubbers, and more particularly to a modular floor scrubber silent system. Background Technology

[0002] Traditional floor scrubbers currently suffer from excessive noise from their vacuum motors. In high-end office buildings, hospitals, schools, and other locations requiring quiet environments, this noise can negatively impact the environment, making them unsuitable for use. For floor scrubbers, the noise primarily originates from the vibration of the internal water-absorbing motor. Therefore, reducing motor vibration is one of the effective methods for noise reduction. Existing vibration reduction methods typically involve adding damping materials around or inside the motor, or using vibration-damping structures to dampen the motor. However, these methods cannot automatically lubricate the internal components based on the intensity of vibration damping, resulting in ineffective noise reduction. Summary of the Invention

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0004] In view of the problems existing in the current modular floor scrubbing machine noise reduction system, the present invention is proposed.

[0005] Therefore, the purpose of this invention is to provide a modular floor scrubber noise reduction system that can effectively reduce the noise of the water suction motor and automatically lubricate the inside of the slide when encountering large vibrations.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: A modular floor scrubber noise reduction system includes a housing assembly, comprising a transmission plate, a water-absorbing motor disposed on the transmission plate, an upper noise reduction cover and a lower noise reduction cover sleeved around the water-absorbing motor, a mounting plate connected to the lower noise reduction cover, and a sound-absorbing pipe disposed on the lower noise reduction cover; a noise reduction assembly, comprising a fixing plate, a support column disposed on the fixing plate, a slide cylinder hinged to the support column, a support rod slidably connected to the slide cylinder, a first spring sleeved around the support rod, a central rod hinged to the support rod, and a second spring sleeved around the central rod; and a lubrication assembly disposed on the fixing plate.

[0007] As a preferred embodiment of the modular floor scrubber noise reduction system of the present invention, the water suction motor is fixedly connected to the upper noise reduction cover and the lower noise reduction cover. The upper noise reduction cover is also provided with a heat insulation pad. The inner walls of both the upper and lower noise reduction covers are provided with sound-absorbing cotton. The mounting sheet is fixedly installed at the bottom of the lower noise reduction cover. The bottom of the lower noise reduction cover is also provided with a heat dissipation cover. The inner wall of the heat dissipation cover is provided with sealing cotton. The silencing pipe is connected to the water suction motor. A sealing gasket is provided between the upper and lower noise reduction covers.

[0008] As a preferred embodiment of the modular floor scrubber silent system of the present invention, the support column is provided in four parts, the support column is arranged in a square with four corners, each support column is hinged to two slide cylinders, the two slide cylinders are perpendicular to each other, one end of the support rod is sleeved in the slide cylinder, and the other end is hinged to the center rod.

[0009] As a preferred embodiment of the modular floor scrubber silent system of the present invention, the first spring is disposed inside the slide cylinder, one end of the first spring is fixedly connected to the end of the support rod, and the other end is fixedly connected to the end of the slide cylinder near the central rod. The central rod is disposed in the center between the two support columns, and there are four central rods. The two sides of the central rod are respectively hinged to a support rod, and the central rod is slidably connected to the fixed plate.

[0010] As a preferred embodiment of the modular floor scrubber silent system of the present invention, the top of the central rod is fixedly connected to the transmission plate, one end of the second spring is fixedly connected to the central rod, and the other end is fixedly connected to the fixing plate.

[0011] As a preferred embodiment of the modular floor scrubber silent system of the present invention, the lubrication component includes a mounting base, an inlet pipe, an outlet pipe and a sliding cavity disposed on the mounting base, a piston slidably disposed in the sliding cavity, a stop ball and a third spring disposed in the piston and the inlet pipe, and a hose connecting the outlet pipe and the slide cylinder.

[0012] As a preferred embodiment of the modular floor scrubber silent system of the present invention, the mounting base is disposed on the other side of the fixed plate relative to the support column, the water inlet pipe is connected to the oil tank, a plug ball is disposed at the inlet of the water inlet pipe, the diameter of the plug ball is larger than the diameter of the inlet of the water inlet pipe, and a third spring is disposed below the plug ball, one end of the third spring is fixedly connected to the plug ball, and the other end is fixedly connected to the inner wall of the mounting base.

[0013] As a preferred embodiment of the modular floor scrubber silent system of the present invention, the water inlet pipe is connected to the sliding cavity, the piston is slidably connected to the sliding cavity, the end of the piston outside the mounting base is fixedly connected to the center rod, and a pipe is provided inside the piston, the pipe being connected to the sliding cavity.

[0014] As a preferred embodiment of the modular floor scrubber silent system of the present invention, the pipeline is provided with a plug ball and a third spring, the pipe opening is provided with a plug ball, and the diameter of the plug ball is larger than the diameter of the pipe opening; one end of the third spring is fixedly connected to the plug ball, and the other end is fixedly connected to the inner wall of the mounting base.

[0015] As a preferred embodiment of the modular floor scrubber silent system of the present invention, the water outlet pipe is connected to the sliding cavity, and the third spring is in a compressed state when at rest; four hoses are provided, one end of the hose is connected to the water outlet pipe, and the other end has two branches, which are respectively connected to two sliding cylinders.

[0016] The beneficial effects of this invention are as follows: The modular floor scrubber noise reduction system of this invention can effectively reduce the noise of the water suction motor, significantly reducing the noise of the motor operation. The modular design is compatible with multiple motors, distributing the motor vibration force to each spring and also distributing the vertical force of the vibration to the horizontal direction, effectively preventing excessive use of the springs. Large vibrations can automatically trigger lubrication compensation, lubricating the connection between the support rod and the slide, extending the service life. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0018] Figure 1 This is a schematic diagram of the overall structure of the modular floor scrubber silent system of the present invention.

[0019] Figure 2 This is a schematic diagram of the outer shell assembly structure of the modular floor scrubber silent system of the present invention.

[0020] Figure 3 This is a schematic diagram of the noise reduction and lubrication components of the modular floor scrubber silent system of the present invention.

[0021] Figure 4 This is a schematic diagram of the noise reduction component structure of the modular floor scrubber silent system of the present invention.

[0022] Figure 5 This is a schematic diagram of the internal structure of the slide cylinder of the modular floor scrubber silent system of the present invention.

[0023] Figure 6 This is a schematic diagram of the lubrication component structure of the modular floor scrubber silent system of the present invention.

[0024] Figure 7This is a schematic diagram of the internal structure of the mounting base for the modular floor scrubber silent system of the present invention. Detailed Implementation

[0025] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0028] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0029] Example 1

[0030] Reference Figure 1-2, the first embodiment of the present invention, provides a modular floor scrubber noise reduction system. This system includes a housing assembly 100, a noise reduction assembly 200, and a lubrication assembly 300. The housing assembly 100 includes a transmission plate 101, a water suction motor 102 mounted on the transmission plate 101, an upper noise reduction cover 103 and a lower noise reduction cover 104 sleeved around the water suction motor 102, a mounting plate 105 connected to the lower noise reduction cover 104, and a silencer pipe 106 mounted on the lower noise reduction cover 104. The noise reduction assembly 200 includes a fixing plate 201, a support column 202 mounted on the fixing plate 201, and a lubrication assembly 300. 2. A hinged slide cylinder 203, a support rod 204 slidably connected to the slide cylinder 203, a first spring 205 sleeved on the support rod 204, a central rod 206 hinged to the support rod 204, and a second spring 207 sleeved on the central rod 206; and a lubrication assembly 300, including a mounting base 301, an inlet pipe 302 disposed on the mounting base 301, an outlet pipe 303 and a sliding cavity 304, a piston 305 slidably disposed in the sliding cavity 304, a stop ball 306 and a third spring 307 disposed in the piston 305 and the inlet pipe 302, and a hose 308 connecting the outlet pipe 303 and the slide cylinder 203.

[0031] The water suction motor 102 is fixedly connected to the upper soundproof cover 103 and the lower soundproof cover 104. The upper soundproof cover 103 is also provided with a heat insulation pad 103a. The inner walls of the upper soundproof cover 103 and the lower soundproof cover 104 are provided with sound-absorbing cotton 107. The mounting sheet metal 105 is fixedly installed at the bottom of the lower soundproof cover 104. The bottom of the lower soundproof cover 104 is also provided with a heat dissipation cover 104a. The inner wall of the heat dissipation cover 104a is provided with sealing cotton 104c. The silencer pipe 106 is connected to the water suction motor 102. A sealing gasket 104b is provided between the upper soundproof cover 103 and the lower soundproof cover 104.

[0032] Operation process: First, for the water suction motor 102, the upper soundproof cover 103 and the lower soundproof cover 104 are essentially fitted over the water suction motor 102, with the water suction motor 102 fixed inside. The top heat insulation pad 103a can be sealed to the air inlet of the sewage tank. The sound-absorbing cotton 107 covers the inner wall of the outer casing assembly 100 to minimize the noise of the water suction motor 102. The silencer pipe 106 connects to the interface of the water suction motor 102. The mounting sheet metal 105 connects the lower soundproof cover 104 to the transmission plate 101. A heat dissipation hood 104a is installed at the bottom of the lower soundproof cover 104 to dissipate heat from the water suction motor 102. The upper soundproof cover 103 and the lower soundproof cover 104 provide multiple levels of sound absorption from top to bottom, which can significantly and effectively reduce the noise of the motor operation.

[0033] Example 2

[0034] Reference Figure 3-7, in the second embodiment of the present invention, to reduce the vibration impact of the water suction motor 102, four support columns 202 are provided, arranged in a square with four corners. Each support column 202 is hinged to two sliding cylinders 203, which are perpendicular to each other. One end of the support rod 204 is sleeved inside the sliding cylinder 203, and the other end is hinged to the central rod 206. A first spring 205 is provided inside the sliding cylinder 203. One end of the first spring 205 is fixedly connected to the end of the support rod 204, and the other end is fixedly connected to the end of the sliding cylinder 203 near the central rod 206. The central rod 206 is located in the center between two support columns 202. There are four central rods 206, each hinged to one support rod 204 on both sides. The central rod 206 is slidably connected to the fixing plate 201. The top of the central rod 206 is fixedly connected to the transmission plate 101. One end of the second spring 207 is fixedly connected to the central rod 206, and the other end is fixedly connected to the fixing plate 201.

[0035] The vibration of the water suction motor 102 is transmitted to the central rod 206 through the transmission plate 101. The central rod 206 is set at four points on the square of the transmission plate 101. When the transmission plate 101 vibrates, it squeezes the central rod 206, causing the central rod 206 to undulate on the fixed plate 201. When the central rod 206 undulates and vibrates, it drives one end of the hinged support rod 204 to undulate and vibrate. The undulating vibration of the central rod 206 is distributed to the first spring 205 in the two side support rods 204 and the second spring 207 on the central rod 206. The tension is used to counteract motor vibration; and since the bottom of the transmission plate 101 is provided with four sets of central rods 206, different vibrations at various positions of the transmission plate 101 can be damped. When the vibration point is not in the center, it can also be distributed to each of the first springs 205 and the second springs 207. As shown in the figure, the second spring 207 is the main force-bearing spring, and the vibration force of the undulating central rods 206 can be distributed to the first springs 205 by the support rods 204. This force-bearing structure can protect the second springs 207, prevent them from excessively stretching and contracting and causing metal fatigue, and improve the service life of the noise reduction component 200.

[0036] To provide lubrication compensation within the slide 203, a mounting base 301 is positioned on the other side of the fixed plate 201 relative to the support column 202. A water inlet pipe 302 is connected to an oil tank. A stopper ball 306, larger in diameter than the inlet diameter of the water inlet pipe 302, is installed at the inlet of the water inlet pipe 302. A third spring 307 is also installed below the stopper ball 306, with one end fixedly connected to the stopper ball 306 and the other end fixedly connected to the inner wall of the mounting base 301. The water inlet pipe 302 connects to the sliding cavity 304. A piston 305 is slidably connected to the sliding cavity 304. The end of the piston 305 outside the mounting base 301 is fixedly connected to the center rod 206. A pipe 305a is provided inside the piston 305, communicating with the sliding cavity 304. A plug ball 306 and a third spring 307 are installed inside pipe 305a. The plug ball 306, with a diameter larger than the pipe opening diameter, is located at the pipe opening of pipe 305a. One end of the third spring 307 is fixedly connected to the plug ball 306, and the other end is fixedly connected to the inner wall of the mounting base 301. The outlet pipe 303 is connected to the sliding cavity 304. The third spring 307 is in a compressed state when stationary. Four flexible hoses 308 are provided. One end of each hose 308 is connected to the outlet pipe 303, and the other end has two branches, each connected to one of the two sliding cylinders 203.

[0037] It is easy to see in the noise reduction component 200 that the vibration force of the transmission plate 101 is distributed to the support rod 204 and the first spring 205. The support rod 204 will frequently rub against the slide cylinder 203. This type of structure is very likely to cause rigid friction between the support rod 204 and the slide cylinder 203 after long-term use, which will have a side effect on noise reduction.

[0038] Operation process: A mounting base 301 is set on the other side of the fixed plate 201. When the center rod 206 vibrates, it will drive the piston 305 to move back and forth in the sliding cavity 304. When the piston 305 is pushed into the sliding cavity 304, the lubricant in the sliding cavity 304 will be pushed into the water inlet pipe 302. The ball plug 306 at the water inlet pipe 302 is squeezed by the lubricant in the sliding cavity 304 and is pressed against the pipe opening at the water inlet pipe 302. When the piston 305 continues to be pushed into the sliding cavity 304, the lubricant will push open the ball plug 306 in the pipe 305a and enter the sliding cavity 304 through the pipe 305a. The lubricant in the sliding cavity 304 increases and is discharged into the water outlet pipe 303. When the piston 305 is pulled out of the sliding cavity 304, the space between the piston 305 and the sliding cavity 304 increases. Due to the air pressure difference, the external lubricant will rush in, and the ball plug 306 in the pipe 305a will be... The piston 305 is squeezed to press against the opening of pipe 305a, sealing pipe 305a. The plug 306 at the inlet pipe 302 is pushed open by the lubricant flowing in from outside the inlet pipe 302, thus performing a pumping operation on the oil tank. Through the above steps, the piston 305 continuously draws lubricating oil from the oil tank through its cyclic sliding motion. The lubricating oil is discharged through the outlet pipe 303, which is connected to the hose 308. The lubricating oil enters the slide cylinder 203 through the hose 308 for lubrication compensation. It should be noted that the slide cylinder 203 is not a sealed structure, and the hose 308 will not be unable to introduce lubricant due to air pressure. The vibration and fluctuation of the center rod 206 can drive the piston 305 to move. The greater the vibration and fluctuation of the center rod 206, the faster the lubrication compensation in the slide cylinder 203, thereby protecting the connection between the support rod 204 and the slide cylinder 203 and extending its service life.

[0039] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0040] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the currently considered best mode for carrying out the invention, or those features that are not relevant to implementing the invention) may be omitted.

[0041] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0042] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A modular floor cleaning machine sound attenuation system, characterized by: The utility model relates to a water absorption device, and relates to a water absorption device, which comprises a housing assembly (100), a noise reduction assembly (200) and a lubricating assembly (300). The housing assembly (100) comprises a transmission plate (101), a water absorption motor (102) arranged on the transmission plate (101), an upper silencer (103) and a lower silencer (104) sleeved outside the water absorption motor (102), a mounting plate (105) connected with the lower silencer (104) and a silencer pipe (106) arranged on the lower silencer (104). The noise reduction assembly (200) comprises a fixing plate (201), a support column (202) arranged on the fixing plate (201), a sliding cylinder (203) hingedly connected with the support column (202), a support rod (204) slidingly connected with the sliding cylinder (203), a first spring (205) sleeved outside the support rod (204), a center rod (206) hingedly connected with the support rod (204) and a second spring (207) sleeved outside the center rod (206). The lubricating assembly (300) is arranged on the fixing plate (201) and comprises a mounting seat (301), a water inlet pipe (302) arranged on the mounting seat (301), a water outlet pipe (303) and a sliding cavity (304), a piston (305) slidingly arranged in the sliding cavity (304), a plug ball (306) and a third spring (307) arranged in the piston (305) and the water inlet pipe (302), a hose (308) connecting the water outlet pipe (303) and the sliding cylinder (203), the mounting seat (301) being arranged on the other side of the fixing plate (201) relative to the support column (202), the water inlet pipe (302) being connected to an oil tank, the plug ball (306) being arranged at the pipe opening of the water inlet pipe (302), the plug ball (306) having a diameter greater than the diameter of the pipe opening of the water inlet pipe (302), the third spring (307) being further arranged below the plug ball (306), one end of the third spring (307) being fixedly connected with the plug ball (306) and the other end being fixedly connected with the inner wall of the mounting seat (301), the water inlet pipe (302) being communicated with the sliding cavity (304), the piston (305) being slidingly connected with the sliding cavity (304), the end of the piston (305) outside the mounting seat (301) being fixedly connected with the center rod (206), a pipeline (305a) being arranged in the piston (305), the pipeline (305a) being communicated with the sliding cavity (304), the plug ball (306) and the third spring (307) being arranged in the pipeline (305a), the plug ball (306) being arranged at the pipe opening of the pipeline (305a), the plug ball (306) having a diameter greater than the diameter of the pipe opening of the pipeline (305a), one end of the third spring (307) being fixedly connected with the plug ball (306) and the other end being fixedly connected with the inner wall of the mounting seat (301).

2. The modular walk-behind scrubber silence system of claim 1, wherein: The water suction motor (102) is fixedly connected with the upper silencer (103) and the lower silencer (104), the upper silencer (103) is further provided with a heat insulation pad (103a), the inner walls of the upper silencer (103) and the lower silencer (104) are both provided with silencer cotton (107), the mounting plate (105) is fixedly arranged at the bottom of the lower silencer (104), the lower silencer (104) is further provided with a heat dissipation cover (104a), the inner wall of the heat dissipation cover (104a) is provided with sealing cotton (104c), the silencer pipe (106) is communicated with the water suction motor (102), and the upper silencer (103) and the lower silencer (104) are provided with a sealing pad (104b) therebetween.

3. The modular walk-behind scrubber silence system of claim 2, wherein: The four support columns (202) are arranged in a square shape, each of the support columns (202) is hingedly connected with two slide cylinders (203), the two slide cylinders (203) are perpendicular to each other, one end of the support rod (204) is sleeved in the slide cylinder (203), and the other end of the support rod (204) is hingedly connected with the center rod (206).

4. The modular walk-behind scrubber silence system of claim 3, wherein: The first spring (205) is arranged in the slide cylinder (203), one end of the first spring (205) is fixedly connected with the end of the support rod (204), and the other end of the first spring (205) is fixedly connected with the end of the slide cylinder (203) close to the center rod (206), the center rod (206) is arranged in the center between the two support columns (202), the center rod (206) is provided with four center rods (206), the two sides of the center rod (206) are respectively hingedly connected with one support rod (204), and the center rod (206) is slidably connected with the fixed plate (201).

5. The modular walk-behind scrubber silence system of claim 4, wherein: The top of the center rod (206) is fixedly connected with the transmission plate (101), one end of the second spring (207) is fixedly connected with the center rod (206), and the other end of the second spring (207) is fixedly connected with the fixed plate (201).

6. The modular walk-behind scrubber silence system of claim 1, wherein: The water outlet pipe (303) is communicated with the sliding cavity (304), and the third spring (307) is in a compressed state in a static state; the four hoses (308) are arranged, one end of the hose (308) is communicated with the water outlet pipe (303), and the other end of the hose (308) has two branches and is communicated with the two slide cylinders (203) respectively.

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