Pressure regulation and control mechanism of scrubber brush disc

Abstract

The utility model discloses a pressure regulation and control mechanism of scrubber brush disc relates to home furnishing accessory technical field, including sucking disc main part and air chamber casing, the air chamber casing is installed in sucking disc main part top surface center position, the bottom end of air chamber casing is fixedly connected with base plate, the upper surface of air chamber casing is connected with elastic membrane, and the elastic membrane is connected with the elastic membrane. Negative pressure is generated through operation of the air pump, garbage on the ground is absorbed through communication of the air cavity shell and the cavity of the suction cup body, and the air cavity shell can adjust the negative pressure of the cavity. The elastic film deforms under the action of negative pressure and the elastic force of the spring, and when the elastic film sinks to a certain degree, the oscillating rod pries the rubber plug, and cavity negative pressure adsorption is achieved. The effective length of the spring can be changed and the elastic force of the spring to the elastic film can be adjusted by manually rotating the threaded column, so that the negative pressure condition required for opening the air inlet is changed, the adjustment of the adsorption negative pressure is completed, and the requirements of different cleaning scenes on the suction force can be met.

Description

Technical Field

[0001] This utility model relates to the field of home furnishing accessories technology, and in particular to a pressure control mechanism for a floor scrubber brush. Background Technology

[0002] The floor scrubber brush is a key component of a floor scrubber, typically driven by a motor. It generally comes in round and square shapes, with various bristle materials; for example, nylon is suitable for cleaning hard floors, while rubber effectively removes stubborn stains. During operation, the brush brush rotates at high speed, making close contact with the floor. Combined with detergent and water, it removes and dissolves dust, stains, and debris. The scrubber's suction system then removes the wastewater and debris, thus achieving the goal of cleaning the floor. Different types of floor scrubbers are equipped with brushes of different sizes and functions to meet the cleaning needs of various scenarios, including homes, commercial spaces, and industrial environments.

[0003] For example, the patent publication number CN219516124U, "A Rotary Disk Brush for a Floor Scrubber", includes an upper cover, a cleaning disc rotatably connected to the lower side of the upper cover, cleaning bristles provided on the lower side of the cleaning disc, the cleaning bristles being arranged in multiple layers in a ring on the cleaning disc, cleaning suction ports being provided on the surface of the cleaning disc, and a cleaning suction pipe being provided on the upper side of the upper cover, the cleaning suction pipe communicating with the cleaning suction ports through the cavity between the upper cover and the cleaning disc; the cleaning suction ports are arranged in a ring on the cleaning disc, and the cleaning suction ports are configured in multiple layers, with each layer of cleaning suction ports located between two layers of cleaning bristles.

[0004] In practical applications of traditional floor scrubbers, the single, fixed suction pressure reveals many limitations, making it difficult to meet the diverse cleaning needs of different scenarios. When faced with heavy stains or small debris on the floor, a single, fixed suction power often proves insufficient. Heavier stains adhere strongly, and small debris easily gets stuck in crevices, requiring greater suction power to effectively remove them. Insufficient suction power will prevent the desired cleaning effect, resulting in incomplete cleaning. Conversely, when cleaning more delicate floors, such as wooden or marble floors, or when only simple dust removal is needed, excessive fixed suction power can have negative effects. Excessive suction power may cause scratches and abrasions to delicate floor surfaces, affecting the appearance and lifespan of the floor. At the same time, using high suction power in simple dust removal scenarios will result in unnecessary energy waste and increased operating costs. Utility Model Content

[0005] The purpose of this utility model is to solve the problems existing in the prior art by proposing a pressure control mechanism for the brush disc of a floor scrubber.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a pressure regulating mechanism for a floor scrubber brush, comprising a suction cup body and an air chamber shell. The air chamber shell is installed at the center of the top surface of the suction cup body. A base plate is fixedly connected to the bottom end of the air chamber shell. An elastic membrane is connected to the upper surface of the air chamber shell. A spring cylinder is connected to the center of the top end of the air chamber shell. A threaded column is rotatably connected to the center of the top end of the spring cylinder. A lifting plate is threadedly connected to the outer wall of the threaded column. A spring is fixedly connected between the elastic membrane and the lifting plate. An air outlet is connected to the top end of the air chamber shell. An air inlet is connected to the bottom end of the base plate. A support column is fixedly connected to the top surface of the suction cup body. A swing rod is rotatably connected to the top end of the support column. One end of the swing rod is rotatably connected to the bottom wall of the elastic membrane. A rubber plug is fixedly connected to the other end of the swing rod.

[0007] Preferably, the top of the support column passes through the top wall of the spring cylinder and is fixedly connected to a rotating handle, and a circular baffle is fixedly connected to the outer side wall of the support column, and the support column is rotatably engaged with the spring cylinder through the circular baffle.

[0008] Preferably, a threaded hole is provided at the center of the lifting plate, and the support column is threadedly connected to the lifting plate through the threaded hole.

[0009] Preferably, a limiting post is fixedly connected to the inner bottom wall of the spring cylinder, and a positioning hole is provided on the outer periphery of the lifting plate, with the outer side wall of the limiting post slidably connected to the positioning hole.

[0010] Preferably, the top end of the swing rod is rotatably connected to a hinge seat, and the hinge seat is fixedly connected to the bottom surface of the elastic membrane.

[0011] Preferably, a reinforcing rib is fixedly connected between the air chamber shell and the spring cylinder, and the reinforcing rib is evenly distributed on the outer periphery of the air chamber shell.

[0012] Preferably, the outer wall of the air chamber shell is connected to a pressure relief valve, a sealing strip is provided between the air chamber shell and the base plate, and the outer wall of the spring is coated with an anti-rust agent.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. In this invention, a negative pressure is generated by the operation of an air pump. This negative pressure is then absorbed through the connection between the air chamber shell and the suction cup body cavity. The negative pressure within the air chamber shell is adjustable. The elastic membrane deforms under the influence of negative pressure and spring force. When it depresses to a certain extent, the swing rod pries open the rubber stopper, achieving negative pressure adsorption within the cavity. Manually rotating the threaded column changes the effective length of the spring, adjusting the spring force on the elastic membrane, thereby changing the negative pressure conditions required to open the air inlet. This allows for adjustment of the adsorption negative pressure, adapting to the suction requirements of different cleaning scenarios.

[0015] 2. In this utility model, the rotating handle at the top of the support column allows for manual control of the threaded column's rotation, thereby adjusting the height of the lifting plate. The limiting column ensures stable movement of the lifting plate. Reinforcing ribs make the connection between the air chamber shell and the spring cylinder more secure, improving the overall structural strength. The sealing strip enhances the airtightness of the air chamber shell, facilitating negative pressure formation. Simultaneously, the pressure relief valve on the outside of the air chamber shell can be adjusted when the internal negative pressure is too high, preventing damage to parts due to excessive pressure differential. The application of rust inhibitor to the spring also extends its service life, ensuring long-term reliable operation of the mechanism. Attached Figure Description

[0016] Figure 1 This utility model provides an overall structural schematic diagram of the pressure control mechanism for a floor scrubber brush.

[0017] Figure 2 This utility model provides a schematic diagram of the external structure of the air chamber shell and spring cylinder in the pressure control mechanism of the brush disc of a floor scrubber;

[0018] Figure 3 This utility model provides a schematic diagram of the internal structure of the air chamber shell and spring cylinder in the pressure control mechanism of the brush disc of a floor scrubber;

[0019] Figure 4 This utility model provides a schematic diagram of the internal structure of the air chamber shell in the pressure control mechanism of a floor scrubber brush.

[0020] Figure 5 This utility model provides a schematic diagram of the internal structure of the spring cylinder in the pressure control mechanism of a floor scrubber brush.

[0021] Figure 6 This utility model presents a partial structural disassembly diagram of the pressure control mechanism of a floor scrubber brush.

[0022] Illustration: 1. Suction cup body; 2. Air chamber shell; 3. Spring cylinder; 4. Air outlet; 5. Rotating handle; 6. Reinforcing rib; 7. Air inlet; 8. Support column; 9. Swing rod; 10. Threaded column; 11. Limiting column; 12. Lifting plate; 13. Spring; 14. Elastic membrane; 15. Base plate; 16. Hinge seat; 17. Positioning hole; 18. Threaded hole. Detailed Implementation

[0023] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0025] Example 1: As Figure 1-6 As shown, this utility model provides a pressure control mechanism for a floor scrubber brush, including a suction cup body 1 and an air chamber shell 2. The air chamber shell 2 is installed at the center of the top surface of the suction cup body 1. A base plate 15 is fixedly connected to the bottom end of the air chamber shell 2. An elastic membrane 14 is connected to the upper surface of the air chamber shell 2. A spring cylinder 3 is connected to the center of the top end of the air chamber shell 2. A threaded column 10 is rotatably connected to the center of the top end of the spring cylinder 3. A lifting plate 12 is threadedly connected to the outer wall of the threaded column 10. A spring 13 is fixedly connected between the elastic membrane 14 and the lifting plate 12. An air outlet 4 is connected to the top end of the air chamber shell 2. An air inlet 7 is connected to the bottom end of the base plate 15. A support column 8 is fixedly connected to the top surface of the suction cup body 1. A swing rod 9 is rotatably connected to the top end of the support column 8. One end of the swing rod 9 is rotatably connected to the bottom wall of the elastic membrane 14. A rubber plug is fixedly connected to the other end of the swing rod 9.

[0026] The specific setup and function of this embodiment are described in detail below. A cavity is formed on the lower surface of the suction cup body 1. The cavity is connected to the air chamber shell 2 through an air inlet 7. The air chamber shell 2 is connected to the air pump of the floor scrubber through an air outlet 4. After the air pump runs, it generates negative pressure, causing the air in the cavity under the suction cup body 1 to flow upwards, thereby absorbing the garbage on the ground. The negative pressure generated in the cavity is regulated by the air chamber shell 2. An elastic membrane 14 is set at the connection between the air chamber shell 2 and the spring cylinder 3. A spring 13 is connected above the elastic membrane 14. After the air chamber shell 2 generates negative pressure, the negative pressure causes the elastic membrane 14 to deform. At the same time, the elastic force of the spring 13 on the elastic membrane 14 also causes the elastic membrane 14 to be deformed downwards. After the elastic membrane 14 is deformed, it generates its own elastic force, which is upwards. The sum of the elastic force and the negative pressure of the air and the elastic force of the spring 13 is... To achieve positional balance, when the elastic membrane 14 is concave downwards to a certain extent, the swing rod 9 at the bottom of the elastic membrane 14 is pried downwards, causing the tail end of the swing rod 9 to tilt upwards, thereby disengaging the rubber plug from the air inlet 7 and connecting the cavity with the air chamber shell 2. This allows the cavity to also have negative pressure, achieving the effect of negative pressure adsorption. When it is necessary to adjust the magnitude of the negative pressure in the cavity, the threaded column 10 is manually rotated, causing the threaded column 10 to control the movement of the lifting plate 12, thereby changing the effective length of the spring 13 and adjusting the downward elastic force of the spring 13 on the elastic membrane 14. If it is necessary to open the rubber plug again, a greater negative pressure condition needs to be formed in the air chamber shell 2. Under this negative pressure condition, the air inlet 7 is opened, and the negative pressure below the suction cup body 1 is the same as that in the air chamber shell 2. This completes the adjustment of the adsorption negative pressure of the suction cup body 1.

[0027] Example 2: Figure 3 , Figure 4 and Figure 6 As shown, the top of the support column 8 penetrates the top wall of the spring cylinder 3 and is fixedly connected to a rotating handle 5. A circular baffle is fixedly connected to the outer wall of the support column 8, and the support column 8 is rotatably engaged with the spring cylinder 3 through the circular baffle. A threaded hole 18 is provided at the center of the lifting plate 12, and the support column 8 is threadedly connected to the lifting plate 12 through the threaded hole 18. A limit post 11 is fixedly connected to the inner bottom wall of the spring cylinder 3, and a positioning hole 17 is provided on the outer periphery of the lifting plate 12. The outer wall of the limit post 11 is slidably connected to the positioning hole 17. A hinge seat 16 is rotatably connected to the top of the swing rod 9, and the hinge seat 16 is fixedly connected to the bottom surface of the elastic membrane 14. A reinforcing rib 6 is fixedly connected between the air chamber shell 2 and the spring cylinder 3, and the reinforcing rib 6 is evenly distributed on the outer periphery of the air chamber shell 2. A pressure relief valve is connected to the outer wall of the air chamber shell 2, a sealing strip is provided between the air chamber shell 2 and the base plate 15, and the outer wall of the spring 13 is coated with an anti-rust agent.

[0028] The overall effect of this embodiment is as follows: In order to control the initial length of the spring 13, while adjusting the internal negative pressure of the air chamber shell 2, the handle 5 is manually turned to rotate the threaded column 10. The threaded column 10 drives the lifting plate 12 to move up and down through the threaded hole 18. The movement of the lifting plate 12 is controlled by the limiting column 11, so that the height position of the lifting plate 12 can be adjusted. The airtightness of the air chamber shell 2 is strengthened by the sealing strip, so as to maintain the conditions for the formation of negative pressure in the air chamber shell 2. By installing reinforcing ribs 6 on the air chamber shell 2 and the spring cylinder 3, the entire structure is made more stable. By installing a pressure relief valve on the outside of the air chamber shell 2, when the internal negative pressure of the air chamber shell 2 is too large, the pressure relief valve adjusts the internal negative pressure of the air chamber shell 2, avoiding damage to parts caused by excessive pressure difference.

[0029] The operating method and working principle of this device: The air pump of the floor scrubber generates negative pressure, causing the air in the lower cavity of the suction cup body 1 to flow into the air chamber shell 2 through the air inlet 7, and then be drawn away by the air pump through the air outlet 4 to absorb the garbage on the ground. The air chamber shell 2 regulates the negative pressure of the cavity. A spring 13 is connected above the elastic membrane 14 at the connection between the air chamber shell 2 and the spring cylinder 3. When the air chamber shell 2 generates negative pressure, the elastic membrane 14 is deformed downward by the negative pressure and the elastic force of the spring 13, and generates an upward elastic force that is equal to the sum of the air negative pressure and the elastic force of the spring 13 to maintain balance. When the elastic membrane 14 is deformed to a certain extent, the bottom swing rod 9 pries it to disengage the rubber plug at the tail end from the air inlet 7, realizing the connection between the cavity and the air. The cavity shell 2 is connected for negative pressure adsorption; when adjusting the negative pressure of the cavity, manually rotate the threaded column 10 to control the movement of the lifting plate 12, change the effective length of the spring 13, adjust its elastic force on the elastic membrane 14, and open the air inlet 7. The cavity shell 2 needs a larger negative pressure to complete the adsorption negative pressure adjustment of the suction cup body 1; manually turn the rotating handle 5 to drive the threaded column 10 to rotate, and move the lifting plate 12 up and down through the threaded hole 18. The limit column 11 controls the movement of the periphery to adjust the height; the sealing strip strengthens the airtightness of the cavity shell 2, which is conducive to the formation of negative pressure. The reinforcing rib 6 between the cavity shell 2 and the spring cylinder 3 makes the structure stable. The pressure relief valve on the outside of the cavity shell 2 can be adjusted when the internal negative pressure is too large to avoid damage to the parts.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A pressure regulating mechanism for a floor scrubber brush, comprising a suction cup body (1) and an air chamber shell (2), wherein the air chamber shell (2) is installed at the center of the top surface of the suction cup body (1), characterized in that: The bottom end of the air chamber shell (2) is fixedly connected to a base plate (15). An elastic membrane (14) is connected to the upper surface of the air chamber shell (2). A spring cylinder (3) is connected to the center of the top end of the air chamber shell (2). A threaded column (10) is rotatably connected to the center of the top end of the spring cylinder (3). A lifting plate (12) is threadedly connected to the outer side wall of the threaded column (10). A spring (13) is fixedly connected between the elastic membrane (14) and the lifting plate (12). An air outlet (4) is connected to the top end of the air chamber shell (2). An air inlet (7) is connected to the bottom end of the base plate (15). A support column (8) is fixedly connected to the top surface of the suction cup body (1). A swing rod (9) is rotatably connected to the top end of the support column (8). One end of the swing rod (9) is rotatably connected to the bottom wall of the elastic membrane (14). A rubber plug is fixedly connected to the other end of the swing rod (9).

2. The pressure regulating mechanism for a floor scrubber brush disc according to claim 1, characterized in that: The top of the support column (8) passes through the top wall of the spring cylinder (3) and is fixedly connected to a rotating handle (5). A round baffle is fixedly connected to the outer side wall of the support column (8). The support column (8) is rotatably engaged with the spring cylinder (3) through the round baffle.

3. The pressure regulating mechanism for a floor scrubber brush disc according to claim 1, characterized in that: A threaded hole (18) is provided at the center of the lifting plate (12), and the support column (8) is threadedly connected to the lifting plate (12) through the threaded hole (18).

4. The pressure regulating mechanism for a floor scrubber brush disc according to claim 1, characterized in that: The inner bottom wall of the spring cylinder (3) is fixedly connected to a limiting post (11), and the outer periphery of the lifting plate (12) is provided with a positioning hole (17). The outer side wall of the limiting post (11) is slidably connected to the positioning hole (17).

5. The pressure regulating mechanism for a floor scrubber brush disc according to claim 1, characterized in that: The top end of the swing rod (9) is rotatably connected to a hinge seat (16), and the hinge seat (16) is fixedly connected to the bottom surface of the elastic membrane (14).

6. The pressure regulating mechanism for a floor scrubber brush disc according to claim 1, characterized in that: A reinforcing rib (6) is fixedly connected between the air chamber shell (2) and the spring cylinder (3), and the reinforcing rib (6) is evenly distributed on the outer periphery of the air chamber shell (2).

7. The pressure regulating mechanism for a floor scrubber brush disc according to claim 1, characterized in that: The outer wall of the air chamber shell (2) is connected to a pressure relief valve, a sealing strip is provided between the air chamber shell (2) and the base plate (15), and the outer wall of the spring (13) is coated with an anti-rust agent.

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