A scrubber brush disc lifting device

Abstract

This invention relates to the field of floor scrubbers and discloses a floor scrubber brush lifting device. The key technical features include a fixed frame and an electric push rod. The electric push rod is fixedly connected within the fixed frame, which contains a sliding mechanism. The sliding mechanism includes a slide rod and two fixed parts. The slide rod is fixed between the two fixed parts. By using a tension spring, when the electric push rod moves the slide rod towards the end closest to the electric push rod, the fixed block moves vertically downwards under gravity. At this time, the tension spring is stretched to reduce the force between the slide rod and the output end of the electric push rod, thus extending the service life of the electric push rod. Furthermore, by using two fixed parts, the position of the slide rod can be adjusted between the two fixed parts, facilitating the fixing of the slide rod and the electric push rod. Changing the position of the slide rod by the electric push rod changes the height of the fixed block.

Description

Technical Field

[0001] This invention relates to the field of floor scrubbers, and more specifically to a floor scrubber brush lifting device. Background Technology

[0002] A floor scrubber is a cleaning machine suitable for cleaning hard floors while simultaneously drying and removing wastewater from the site. It offers advantages such as environmental friendliness, energy efficiency, and high performance. Floor scrubbers are categorized into semi-automatic, fully automatic, walk-behind, and ride-on types.

[0003] Floor scrubbers are equipped with a brush plate lifting device, which adjusts the height of the brush plate relative to the floor so that the brush plate can work. In general, the lifting device is powered by an electric push rod, but the electric push rod is prone to damage after prolonged use. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a floor scrubber brush lifting device to extend the service life of the electric push rod.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A floor scrubber brush lifting device includes a fixed frame and an electric push rod. The electric push rod is fixedly connected inside the fixed frame. A sliding mechanism is provided inside the fixed frame. The sliding mechanism includes a slide rod and two fixed parts. The slide rod is fixed between the two fixed parts and slidably connected to the fixed frame. The electric push rod is used to drive the slide rod to move horizontally. A tension spring is fixedly connected between the fixed parts and the fixed frame. A steel wire rope is fixedly connected between the two fixed parts. A fixed block is fixedly connected to the steel wire rope. Guide mechanisms are respectively provided on two opposite sides of the fixed frame. The steel wire rope moves the fixed block vertically through the guide mechanisms.

[0007] In this invention, preferably, the fixing part includes two fixing plates, each fixing plate having an oblong hole, one end of the tension spring on the same side being fixedly connected between the two fixing plates, and both ends of the slide rod passing through the corresponding oblong holes.

[0008] In this invention, preferably, the fixing frame has sliding grooves on its two opposite sides, and the sliding rod is slidably connected to the sliding grooves.

[0009] In this invention, preferably, the guiding mechanism includes a pressure plate, and a pulley is rotatably connected between the pressure plate and the fixing frame.

[0010] In this invention, preferably, a positioning block is provided between the fixing plate adjacent to the fixing frame and the fixing frame, the positioning block is fixedly connected to the slide bar, and the wire rope includes a first tension section and a second tension section, the positioning block being used to make the first tension section and the second tension section parallel to each other.

[0011] In this invention, preferably, the central axis of the pulley is positioned lower than the position of the slide bar, so that the first tension section is parallel to the horizontal plane.

[0012] In this invention, preferably, a counterweight is provided on the fixing block.

[0013] In this invention, preferably, the distance between the center of the first stretching segment and the center of the second stretching segment is equal to the length of the counterweight.

[0014] In this invention, preferably, the counterweight is divided into a first bonding block and a second bonding block, and the first bonding block and the second bonding block are respectively provided with grooves on opposite sides, and the two grooves form a space for the steel wire rope to pass through.

[0015] The beneficial effects of this invention are as follows: By setting a tension spring, when the electric push rod drives the slide rod to move towards the end close to the electric push rod, the fixed block moves vertically downward by gravity. At this time, the tension spring is stretched to reduce the force of the slide rod against the output end of the electric push rod, which can extend the service life of the electric push rod. Furthermore, by setting two fixing parts, the position of the slide rod can be adjusted between the two fixing parts, which facilitates the fixing of the slide rod and the electric push rod. By changing the position of the slide rod by the electric push rod, the height position of the fixed block can be changed. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0017] Figure 2 This is the front view of the present invention;

[0018] Figure 3 This is a top view of the present invention;

[0019] Figure 4 This is a cross-sectional view of the present invention.

[0020] Reference numerals: 1. Fixing frame; 2. Electric push rod; 3. Sliding mechanism; 31. Slide rod; 32. Fixing part; 33. Fixing plate; 34. Waist-shaped hole; 35. Slide groove; 4. Tension spring; 5. Steel wire rope; 51. First tension section; 52. Second tension section; 6. Fixing block; 7. Guide mechanism; 71. Pressure plate; 72. Pulley; 8. Positioning block; 9. Counterweight block; 91. First fitting block; 92. Second fitting block; 93. Groove. Detailed Implementation

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0024] Please also see Figures 1 to 4This embodiment of a floor scrubber brush lifting device includes a fixed frame 1 and an electric push rod 2. The electric push rod 2 is fixedly connected inside the fixed frame 1. A sliding mechanism 3 is provided inside the fixed frame 1. The sliding mechanism 3 includes a slide rod 31 and two fixed parts 32. The slide rod 31 is fixed between the two fixed parts 32, which facilitates fixing the slide rod 31 and allows the position of the slide rod 31 to be adjusted between the two fixed parts 32. This facilitates the fixing of the slide rod 31 and the electric push rod 2. The slide rod 31 is slidably connected to the fixed frame 1. The electric push rod 2 is used to drive the slide rod 31 to move horizontally. A tension spring 4 is fixedly connected between the fixed parts 32 and the fixed frame 1. The tension spring 4 allows the electric push rod 2 to move horizontally. When retracted, the fixed block 6 moves vertically downwards under gravity, causing the slide bar 31 to exert a force toward the electric push rod 2. The tension spring 4 provides a force away from the electric push rod 2 to reduce the impact of the slide bar 31 on the electric push rod 2 when the fixed block 6 is vertically downwards, thereby increasing the service life of the electric push rod 2. A steel wire rope 5 is fixedly connected between the two fixed parts 32, and a fixed block 6 is fixedly connected to the steel wire rope 5. Guide mechanisms 7 are respectively provided on the opposite sides of the fixed frame 1. The steel wire rope 5 moves the fixed block 6 vertically through the guide mechanisms 7. The position of the slide bar 31 can be changed by the electric push rod 2, thereby changing the height position of the fixed block 6.

[0025] Reference Figure 1 , Figure 2 and Figure 3 As shown, the fixing part 32 includes two fixing plates 33. Each fixing part 32 is provided with two fixing plates 33, which makes it more convenient and stable to fix the wire rope 5 and the tension spring 4. The fixing plate 33 is provided with a waist-shaped hole 34. One end of the tension spring 4 on the same side is fixedly connected between the two fixing plates 33. The two ends of the slide rod 31 pass through the corresponding waist-shaped hole 34 respectively. The two ends of the slide rod 31 are provided with threads and are fixed to the fixing plate 33 by nuts.

[0026] Reference Figure 1 and Figure 2 As shown, the fixed frame 1 has sliding grooves 35 on its two opposite sides. The sliding grooves 35 provide the sliding direction and support force for the sliding rod 31, and the sliding rod 31 is slidably connected to the sliding grooves 35.

[0027] Reference Figure 1 , Figure 2 and Figure 3 As shown, the guide mechanism 7 includes a pressure plate 71, and a pulley 72 is rotatably connected between the pressure plate 71 and the fixed frame 1. The wire rope 5 is wound on the pulley 72, and the transmission can be realized more conveniently through the pulley 72.

[0028] Reference Figure 1 , Figure 2 and Figure 4As shown, a positioning block 8 is provided between the fixing plate 33 adjacent to the fixing frame 1 and the fixing frame 1. The positioning block 8 is fixedly connected to the slide rod 31. The wire rope 5 includes a first tension section 51 and a second tension section 52. The first tension section 51 and the second tension section 52 are the wire rope 5 parts between the pulley 72 and the fixing part 32, respectively. The positioning block 8 makes the first tension section 51 and the second tension section 52 parallel to each other, so that the first tension section 51 and the second tension section 52 slide stably on the pulley 72 and prevent the first tension section 51 and the second tension section 52 from sliding off the pulley 72. The central axis of the pulley 72 is lower than the position of the slide rod 31 so that the first tension section 51 is parallel to the horizontal plane, so that the tension of the slide rod 31 on the first tension section 51 and the second tension section 52 is parallel to the horizontal plane, so that the force is applied more completely and the force is prevented from being decomposed.

[0029] Reference Figure 1 , Figure 2 and Figure 4 As shown, a counterweight 9 is provided on the fixed block 6. The counterweight 9 increases the weight of the fixed block 6, so that the fixed block 6 can move stably downward in the vertical direction by relying on gravity.

[0030] Reference Figure 1 and Figure 2 As shown, the distance between the center of the first stretching section 51 and the center of the second stretching section 52 is equal to the length of the counterweight 9, so that the two sections of the wire rope 5 located between the pulley 72 and the fixed block 6 are parallel to each other, making the movement of the fixed block 6 in the vertical direction more stable.

[0031] Reference Figure 1 , Figure 2 and Figure 3 As shown, the counterweight 9 is divided into a first bonding block 91 and a second bonding block 92. The opposite sides of the first bonding block 91 and the second bonding block 92 are respectively provided with grooves 93. The two grooves 93 form a space for the steel wire rope 5 to pass through, which solves the problem of the steel wire rope 5 being difficult to fix and connect with the fixed block 6 or the counterweight 9.

[0032] Working principle: When the electric push rod 2 drives the slide rod 31 to move away from the electric push rod 2, the slide rod 31 pulls the steel wire rope 5. The steel wire rope 5 causes the fixed block 6 to move upward through the pulley 72. When the electric push rod 2 drives the slide rod 31 to move closer to the electric push rod 2, the fixed block 6 moves vertically downward by gravity. At this time, the tension spring 4 is stretched to reduce the force of the slide rod 31 against the output end of the electric push rod 2.

[0033] The above are merely preferred embodiments of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A floor scrubber brush lifting device, comprising a fixed frame (1) and an electric push rod (2), wherein the electric push rod (2) is fixedly connected within the fixed frame (1), characterized in that: The fixed frame (1) is provided with a sliding mechanism (3), which includes a slide rod (31) and two fixed parts (32). The slide rod (31) is fixed between the two fixed parts (32) and is slidably connected to the fixed frame (1). The electric push rod (2) is used to drive the slide rod (31) to move horizontally. A tension spring (4) is fixedly connected between the fixed parts (32) and the fixed frame (1). A steel wire rope (5) is fixedly connected between the two fixed parts (32). A fixed block (6) is fixedly connected to the steel wire rope (5). Guide mechanisms (7) are provided on opposite sides of the fixed frame (1). The steel wire rope (5) moves the fixed block (6) vertically through the guide mechanisms (7). The system includes two fixing plates (33), each with a waist-shaped hole (34). One end of the tension spring (4) on the same side is fixedly connected between the two fixing plates (33). The two ends of the slide rod (31) pass through the corresponding waist-shaped holes (34). The guide mechanism (7) includes a pressure plate (71), and a pulley (72) is rotatably connected between the pressure plate (71) and the fixing frame (1). A positioning block (8) is provided between the fixing plate (33) adjacent to the fixing frame (1) and the fixing frame (1). The positioning block (8) is fixedly connected to the slide rod (31). The wire rope (5) includes a first tension section (51) and a second tension section (52). The positioning block (8) makes the first tension section (51) and the second tension section (52) parallel to each other.

2. The floor scrubber brush lifting device according to claim 1, characterized in that: The fixing frame (1) has sliding grooves (35) on its two opposite sides, and the sliding rod (31) is slidably connected to the sliding grooves (35).

3. The floor scrubber brush lifting device according to claim 1, characterized in that: The central axis of the pulley (72) is positioned lower than that of the slide bar (31) so that the first stretching section (51) is parallel to the horizontal plane.

4. The floor scrubber brush lifting device according to claim 1, characterized in that: A counterweight (9) is provided on the fixed block (6).

5. The floor scrubber brush lifting device according to claim 4, characterized in that: The distance between the center of the first stretching segment (51) and the center of the second stretching segment (52) is equal to the length of the counterweight (9).

6. The floor scrubber brush lifting device according to claim 4, characterized in that: The counterweight (9) is divided into a first bonding block (91) and a second bonding block (92). The first bonding block (91) and the second bonding block (92) have grooves (93) on their opposite sides, and the two grooves (93) form a space for the steel wire rope (5) to pass through.

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