Power-assisted mechanism of scrubber

Abstract

The utility model relates to the technical field of household cleaning electric appliances, in particular to a scrubber power-assisted mechanism which comprises a base, a connecting frame, a swing arm, a limiting element and a power-assisted wheel, the connecting frame is arranged on one side of the base, a rotating shaft is arranged at one end of the swing arm, and a mounting part is arranged at the other end of the swing arm. The swing arm is movably mounted on one side of the connecting frame through a rotating shaft, a tension element is arranged on the side, away from the rotating shaft, of the connecting frame, one end of the tension element is connected with the swing arm and used for providing tension for the swing arm, the limiting element is used for limiting movement of the swing arm, and one end of the power assisting wheel is mounted on the mounting part. The power-assisted wheel can continuously apply pressure to the ground through the tension provided by the tension spring, so that the friction force between the power-assisted wheel and the ground is kept, and the slipping of the power-assisted wheel caused by insufficient friction force is overcome.

Description

Technical Field

[0001] The utility model relates to the technical field of household cleaning appliances, in particular to a power assist mechanism for a floor scrubber. Background Art

[0002] A floor scrubber is a device used to clean floor surfaces, commonly used in commercial and domestic environments. They typically use water and detergent to clean floors, and remove dirt, dust and other debris through devices such as brushes, rags or vacuum cleaners. Floor scrubbers can work in a variety of ways, including manual push, electric or automated. In a domestic environment, small floor scrubbers are often used to clean hard floors in the home, such as wooden floors, tile floors, etc.

[0003] In daily use, household floor scrubbers need to be used with a power-assist mechanism to reduce the physical exertion of operators. The existing power-assist wheels of floor scrubbers will have insufficient friction on smooth and wet surfaces, causing the power-assist wheels to slip, affecting the control of the power-assist wheels and the feel of the floor scrubber. Utility Model Content

[0004] To solve the above problems, the utility model provides a floor scrubber assisting mechanism that uses the tension provided by a tension spring to enable the assisting wheel to continuously apply pressure to the ground, thereby maintaining the friction between the assisting wheel and the ground and overcoming the slipping of the assisting wheel caused by insufficient friction.

[0005] The technical solution adopted by the utility model is: a floor scrubber assist mechanism, including a base, a connecting frame, a swing arm, a limiting element and a power-assisting wheel, the connecting frame is arranged on one side of the base, one end of the swing arm is provided with a rotating shaft, and the other end is provided with a mounting portion, the swing arm is movably mounted on one side of the connecting frame through the rotating shaft, a tension element is provided on the side of the connecting frame away from the rotating shaft, one end of the tension element is connected to the swing arm and is used for providing tension to the swing arm, the limiting element is used for movably limiting the swing arm, and one end of the power-assisting wheel is mounted on the mounting portion.

[0006] A further improvement to the above solution is that a hinge element is provided on one side of the base located on the connecting frame, and the hinge element is connected to a connecting rod.

[0007] A further improvement to the above solution is that the connecting frame includes two groups of connecting plates arranged opposite to each other, a hollow groove is formed between the two connecting plates, and the hinge element is arranged in the hollow groove.

[0008] A further improvement to the above solution is that a bottom bracket is provided on the lower side of the hollow slot located at the hinge element, and the bottom bracket is provided with auxiliary wheels.

[0009] A further improvement to the above solution is that the base is arranged at the bottom of the empty slot and connects the two opposite connecting plates.

[0010] A further improvement to the above scheme is that the limiting element includes an upper limit block and a lower limit block, a limiting groove is formed between the upper limit block and the lower limit block, and the limiting groove is used for the upper and lower movable limiting of the swing arm.

[0011] A further improvement to the above scheme is that two power-boosting wheels are provided, the two power-boosting wheels are respectively arranged on the outer side surfaces of the two connecting plates, and at least one of the two power-boosting wheels has a built-in driving element.

[0012] A further improvement to the above scheme is that the driving element is an outer rotor direct drive motor, the power-assisted wheel is provided with a tire, and the inner diameter of the tire is sleeved on the rotor housing of the outer rotor direct drive motor.

[0013] A further improvement to the above solution is that the outer diameter of the tire is provided with anti-skid patterns, and drainage grooves are provided on the anti-skid patterns, and the drainage grooves are continuously arranged in an "eight" shape on the anti-skid patterns.

[0014] A further improvement to the above solution is that the tension element is a tension spring, and the connecting frame is provided with a tension shaft pin, and the tension shaft pin is used for the tension spring connection.

[0015] The beneficial effects of the utility model are:

[0016] Compared with the existing power-assisting structure of the floor scrubber, the utility model installs the power-assisting wheel of the floor scrubber on a swing arm, the swing arm is fixed on one side of the base, the swing arm is rotatably installed on the connecting frame through a rotating shaft, and the connecting frame is connected to the swing arm through a tension element. When the floor scrubber is suspended in the air, the power-assisting wheel is not subjected to external force, and the swing arm is deflected downward by the tension of the tension spring. When the floor scrubber is placed on the ground, the power-assisting wheel is supported by the ground, and the swing arm is deflected upward accordingly. The power-assisting wheel of the utility model is provided with a tension by the tension spring, so that the power-assisting wheel can continuously apply pressure to the ground, maintain the friction between the power-assisting wheel and the ground, and overcome the slipping of the power-assisting wheel caused by insufficient friction. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the power-assisting mechanism of the floor scrubber of the utility model;

[0018] Figure 2 for Figure 1 The enlarged schematic diagram at A in the middle;

[0019] Figure 3 for Figure 1 A top view of the power-assist mechanism of the middle floor scrubber;

[0020] Figure 4 for Figure 3 Sectional view of AA in the middle;

[0021] Figure 5 for Figure 4 Enlarged schematic diagram of point B in the middle.

[0022] Explanation of the accompanying drawings: base 1, hinge element 11, connecting rod 12, bottom bracket 13, auxiliary wheel 14, connecting frame 2, tension element 21, connecting plate 3, swing arm 4, rotating shaft 41, mounting portion 42, limiting element 5, upper limit block 51, lower limit block 52, power-assisted wheel 6, driving element 61, tire 62, anti-slip pattern 621. DETAILED DESCRIPTION

[0023] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0024] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0026] like Figure 1 to Figure 5 As shown, in one embodiment of the utility model, a floor scrubber assist mechanism is involved, including a base 1, a connecting frame 2, a swing arm 4, a limiting element 5 and a power-assisting wheel 6. The connecting frame 2 is arranged on one side of the base 1, one end of the swing arm 4 is provided with a rotating shaft 41, and the other end is provided with a mounting portion 42. The swing arm 4 can be movably mounted on one side of the connecting frame 2 through the rotating shaft 41. A tension element 21 is arranged on the side of the connecting frame 2 away from the rotating shaft 41. One end of the tension element 21 is connected to the swing arm 4 and is used to provide tension to the swing arm 4. The limiting element 5 is used for movably limiting the swing arm 4. One end of the power-assisting wheel 6 is mounted on the mounting portion 42. The tension element 21 is a tension spring, and the connecting frame 2 is provided with a tension shaft pin, which is used for tension spring connection. In this embodiment, the tension shaft pin is used to fix the tension spring, and the swing arm 4 is connected after being fixed. It is more stable and reliable when in use, and the spring will not fall off.

[0027] In this embodiment, the power-boosting wheel 6 of the floor scrubber is installed on the swing arm 4, and the swing arm 4 is fixed on one side of the base 1. The swing arm 4 is rotatably installed on the connecting frame 2 through the rotating shaft 41, and the connecting frame 2 is connected to the swing arm 4 through the tension element 21. When the floor scrubber is suspended in the air, the power-boosting wheel 6 is not subjected to external force, and the swing arm 4 is deflected downward by the tension of the tension spring. When the floor scrubber is placed on the ground, the power-boosting wheel 6 is supported by the ground, and the swing arm 4 is deflected upward accordingly. The power-boosting wheel 6 of the utility model is provided with a tension by the tension spring so that the power-boosting wheel 6 can continuously apply pressure to the ground, maintain the friction between the power-boosting wheel 6 and the ground, and overcome the slipping of the power-boosting wheel 6 caused by insufficient friction.

[0028] The base 1 is provided with an articulated element 11 on one side of the connecting frame 2, and the articulated element 11 is connected to a connecting rod 12. Specifically, the connecting frame 2 includes two sets of connecting plates 3 arranged opposite to each other, and an empty slot is formed between the two connecting plates 3, and the articulated element 11 is arranged in the empty slot. In this embodiment, the arrangement of the articulated element 11 enables the floor scrubber to flexibly turn and operate in a narrow or complex environment, thereby improving the flexibility and convenience of operation. The two sets of connecting plates 3 ensure that the connecting frame 2 of the floor scrubber is stable and durable, and can withstand various vibrations and impacts when the floor scrubber is working, thereby extending the service life of the floor scrubber.

[0029] The hollow groove is located at the lower side of the hinge element 11 and is provided with a base 13, and the base 13 is provided with auxiliary wheels 14. In this embodiment, the provision of the base 13 and the auxiliary wheels 14 can increase the stability of the floor scrubber, especially on uneven ground, the auxiliary wheels 14 can help disperse the weight and provide additional support, thereby reducing the possibility of the machine shaking and tilting. The provision of the auxiliary wheels 14 makes the floor scrubber more flexible and convenient when it needs to move or turn, and the operator can easily push and control the floor scrubber, thereby improving the operating efficiency. Through the design of the base 13 and the auxiliary wheels 14, the operator will feel more stable and comfortable when moving and controlling the floor scrubber, reducing the labor intensity of the operation and improving the operating experience.

[0030] The bottom bracket 13 is arranged at the bottom of the empty slot and connects the two opposite connecting plates 3. In this embodiment, the bottom bracket 13, as a connecting intermediate piece of the connecting plates 3, can increase the stability of the connecting frame 2, ensure that the connecting frame 2 remains stable when the floor scrubber is working, and reduce the possibility of loosening and vibration. The arrangement of the bottom bracket 13 helps to provide balanced support for the connecting plates 3, thereby improving the overall stability and operational safety of the floor scrubber.

[0031] The limiting element 5 includes an upper limit block 51 and a lower limit block 52, and a limit groove is formed between the upper limit block 51 and the lower limit block 52, and the limit groove is used for the upper and lower movable limit of the swing arm 4. In this embodiment, the limit block ensures that the swing arm 4 can only rotate within a certain angle; specifically, when the floor scrubber is suspended, the power-assisting wheel 6 is not subjected to external force, the swing arm 4 is deflected downward by the tension of the tension spring, and the lower limit block 52 limits the rotation of the swing arm 4; when the floor scrubber is placed on the ground, the power-assisting wheel 6 is supported by the ground, and the swing arm 4 is deflected upward accordingly, and the upper limit block 51 limits the rotation of the swing arm 4.

[0032] In the above embodiment, the limiting element 5 can be directly arranged on the connecting frame 2 , and in different embodiments, it can also be arranged on the base 1 , the purpose of which is to limit the swing arm 4 .

[0033] There are two power-boosting wheels 6, which are respectively arranged on the outer sides of the two connecting plates 3, and at least one of the two power-boosting wheels 6 is equipped with a driving element 61. In this embodiment, the arrangement of the power-boosting wheel 6 makes the floor scrubber more flexible and easy to operate when moving and turning, especially in narrow spaces or scenarios where frequent turning is required, which can improve the operating efficiency. The power-boosting wheel 6 with a built-in driving element 61 can provide additional traction and driving force, which helps the floor scrubber to move and operate on different surfaces. The application of the design of at least one built-in driving element 61 on the outside of the connecting plate 3 on the floor scrubber may bring technical effects such as flexibility, enhanced driving force, reduced labor intensity of operators and improved machine stability, which is beneficial to improving the performance and operating convenience of the floor scrubber. Further, the structural cost can also be saved.

[0034] The driving element 61 is an outer rotor direct drive motor, and the power-assisted wheel 6 is provided with a tire 62, and the inner diameter of the tire 62 is sleeved on the rotor housing of the outer rotor direct drive motor. In this embodiment, the outer rotor direct drive motor is used as the driving element 61 to directly drive the power-assisted wheel 6, which reduces the transmission link, improves the transmission efficiency, and also reduces energy loss. The provision of the tire 62 helps to increase the friction between the power-assisted wheel 6 and the ground, providing greater traction, thereby enhancing the mobility of the floor scrubber on different ground surfaces. Among them, the driving element 61 can also be in the form of a brushed motor combined with a reducer.

[0035] The outer diameter of the tire 62 is provided with an anti-skid pattern 621, and the anti-skid pattern 621 is provided with a drainage groove, and the drainage groove is continuously arranged in an "eight" shape on the anti-skid pattern 621. In this embodiment, the provision of the anti-skid pattern 621 can increase the contact between the tire 62 and the ground, improve the grip and anti-skid properties, especially on wet or uneven ground, which helps to improve the driving stability and safety of the floor scrubber. The "eight" shape design of the drainage groove can effectively disperse and discharge water, reduce the impact of accumulated water on the grip of the tire 62, improve the drainage performance of the tire 62, and help maintain good grip in a humid or rainy environment.

[0036] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A floor scrubber assist mechanism, characterized in that: It includes a base, a connecting frame, a swing arm, a limiting element and a power-assisting wheel, wherein the connecting frame is arranged on one side of the base, one end of the swing arm is provided with a rotating shaft, and the other end is provided with a mounting portion, and the swing arm is movably mounted on one side of the connecting frame through the rotating shaft; a tension element is provided on the side of the connecting frame away from the rotating shaft, one end of the tension element is connected to the swing arm and is used to provide tension to the swing arm, and the limiting element is used to limit the movement of the swing arm; one end of the power-assisting wheel is mounted on the mounting portion.

2. The floor scrubber assist mechanism according to claim 1, characterized in that: A hinge element is arranged on one side of the base located at the connecting frame, and the hinge element is connected with a connecting rod.

3. The floor scrubber assist mechanism according to claim 2, characterized in that: The connecting frame comprises two groups of connecting plates arranged opposite to each other, an empty slot is formed between the two connecting plates, and the hinge element is arranged in the empty slot.

4. The floor scrubber assist mechanism according to claim 3, characterized in that: The empty slot is located at the lower side of the hinge element and is provided with a bottom bracket, and the bottom bracket is provided with auxiliary wheels.

5. The floor scrubber assist mechanism according to claim 4, characterized in that: The bottom bracket is arranged at the bottom of the empty slot and connects the two opposite connecting plates.

6. The floor scrubber assist mechanism according to claim 1, characterized in that: The limiting element comprises an upper limiting block and a lower limiting block, a limiting groove is formed between the upper limiting block and the lower limiting block, and the limiting groove is used for limiting the upper and lower movements of the swing arm.

7. The floor scrubber assist mechanism according to claim 3, characterized in that: There are two power-boosting wheels, which are respectively arranged on the outer sides of the two connecting plates, and at least one of the two power-boosting wheels is equipped with a driving element.

8. The floor scrubber assist mechanism according to claim 7, characterized in that: The driving element is an outer rotor direct drive motor, and the booster wheel is provided with a tire, the inner diameter of the tire is sleeved on the rotor housing of the outer rotor direct drive motor.

9. The floor scrubber assist mechanism according to claim 8, characterized in that: The outer diameter of the tire is provided with anti-skid patterns, and drainage grooves are provided on the anti-skid patterns. The drainage grooves are continuously arranged on the anti-skid patterns in an "eight" shape.

10. The floor scrubber assist mechanism according to claim 1, characterized in that: The tension element is a tension spring, and the connecting frame is provided with a tension shaft pin, and the tension shaft pin is used for the tension spring connection.

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