Pulley structure of sweeping robot

Abstract

The utility model discloses a pulley structure of a floor mopping robot, which belongs to the technical field of floor mopping robots and comprises a fixed support, a connecting part, a universal support and a pulley assembly, a first opening and a second opening are formed in the fixed support in a penetrating manner, and the connecting part comprises a front end part and a rear end part. The connecting part is provided with a first opening and a second opening, the front end part extends into the universal support from the second opening and penetrates through the first opening, the rear end part is detachably connected with the upper end of the universal support, and the pulley assembly is detachably connected with the universal support. The connecting part and the fixing support do not need to be fixed through screws, the groove is formed in the position close to the umbrella-shaped protrusion, the rubber ring is arranged in the groove, damping can be conducted when the pulley assembly passes through the uneven ground, and damage to parts of the device is reduced.

Description

Technical Field

[0001] This utility model relates to the field of sweeping robot technology, and in particular to a pulley structure for a sweeping robot. Background Technology

[0002] A robotic vacuum cleaner, also known as an automatic cleaning robot, smart vacuum cleaner, or robotic vacuum cleaner, is a type of smart home appliance that uses artificial intelligence to automatically clean floors in a room. It typically uses a combination of brushing and vacuuming to collect debris into its own dustbin, thus completing the cleaning process. Generally, robots that perform sweeping, vacuuming, and mopping are all categorized as robotic vacuum cleaners.

[0003] Most existing robotic vacuum cleaners use a single, integrated roller assembly, which is difficult to disassemble. Therefore, a more easily disassembled roller assembly is needed for convenient replacement and cleaning. For example, the applicant's Chinese utility model patent CN221711803U discloses a roller structure for robotic vacuum cleaners that allows for easy disassembly, replacement, and cleaning, reducing product operating costs. However, this application has shortcomings. The connecting parts require fixing screws, making disassembly cumbersome. Furthermore, the application lacks a shock-absorbing component to protect the roller assembly from vibration, which could shorten its lifespan. Additionally, the buffer strips on the tires can trap small debris on the floor, making cleaning difficult. Utility Model Content

[0004] In order to solve the above-mentioned technical problems, this utility model provides a pulley structure for a sweeping robot.

[0005] The technical solution of this utility model is implemented as follows:

[0006] A roller structure for a sweeping robot includes a fixed bracket, a connecting part, a universal bracket, and a roller assembly. The fixed bracket has a first opening and a second opening through it. The connecting part includes a front end and a rear end. The front end extends into the second opening and passes through the first opening. The rear end is detachably connected to the upper end of the universal bracket. The roller assembly is detachably connected to the universal bracket.

[0007] Preferably, the fixed bracket includes a storage part and a fixing part. The storage part is tubular and one end extends through the center of the end face of the fixing part. The second opening is located at the end of the storage part that extends through the center of the end face of the fixing part, and the first opening is located at the other end away from the fixing part. The first opening is provided with a buckle protrusion that adapts to the front end.

[0008] Preferably, the end face of the fixing part is provided with fixing holes, and there are at least two fixing holes, which are symmetrically arranged with the storage part as the center.

[0009] Preferably, the connecting part is tubular, and the connecting part further includes a first rotating shaft and a sleeve. The first rotating shaft passes through the sleeve and is located between the front end and the rear end. Both ends of the first rotating shaft are fixedly connected to the front end and the rear end, respectively. The front end is provided with an umbrella-shaped protrusion, which is snapped together with the snap-fit ​​protrusion. The rear end is provided with a snap-fit ​​part.

[0010] Preferably, rubber rings are fitted between the front end and the rear end and the sleeve.

[0011] Preferably, the universal bracket includes an adjustment part with a snap-fit ​​position. The snap-fit ​​position is adapted to the snap-fit ​​part and snaps into it. The universal bracket can rotate around the connection part to drive the pulley assembly to rotate.

[0012] Preferably, the universal bracket further includes a protective chassis, which is disposed below the adjustment section and has a mounting position for mounting the pulley assembly.

[0013] Preferably, the pulley assembly includes a second shaft, a tire, and a tire bracket. The mounting position has mounting holes on both sides for mounting the second shaft. The second shaft passes through the center of the tire bracket and is fixedly connected to it, and its two ends are rotatably connected to the mounting holes on both sides of the mounting position.

[0014] Preferably, the tire bracket has multiple protrusions spaced apart on its periphery, the tire is nested on the periphery of the tire bracket, and the tire is made of foamed rubber.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This utility model provides a pulley structure for a sweeping robot. The device provides a shock absorption effect and increases the service life of the pulley assembly by setting rubber rings between the front and rear ends of the connecting part and the sleeve. The use of an integrated connecting part eliminates the need for additional screws for fixing, reducing disassembly time. The use of foamed rubber tires provides anti-slip properties and facilitates tire cleaning without leaving any blind spots. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the pulley structure of a sweeping robot according to the present invention;

[0018] Figure 2 This is an exploded view of the pulley structure of a sweeping robot according to this utility model;

[0019] Figure 3 This is a schematic diagram of the first structure of the fixed bracket of this utility model;

[0020] Figure 4 This is a schematic diagram of the second structure of the fixing bracket of this utility model;

[0021] Figure 5 This is a schematic diagram of the connecting part of this utility model;

[0022] Figure 6 This is a schematic diagram of the universal support structure of this utility model;

[0023] Figure 7 This is a schematic diagram of the tire bracket of this utility model.

[0024] 1-Fixed bracket; 11-Storage section; 110-First opening; 111-Second opening; 12-Fixing section; 120-Fixing hole; 2-Connecting section; 21-Front end; 22-Rear end; 23-Sleeve; 24-First rotating shaft; 25-Rubber ring; 3-Universal bracket; 31-Adjusting section; 311-Snap-fit ​​position; 32-Protective chassis; 321-Mounting hole; 4-Pulley assembly; 41-Second rotating shaft; 42-Tire; 43-Tire bracket; 430-Protrusion. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figure 1-7 This utility model relates to a pulley structure for a sweeping robot, comprising a fixed bracket 1, a connecting part 2, a universal bracket 3, and a pulley assembly 4. The fixed bracket 1 has a first opening 110 and a second opening 111 through its interior. The connecting part 2 includes a front end 21 and a rear end 22. The front end 21 extends into the second opening 111 and passes through the first opening 110. The rear end 22 is detachably connected to the upper end of the universal bracket 3. The pulley assembly 4 is detachably connected to the universal bracket 3.

[0027] The fixed bracket 1 includes a storage part 11 and a fixing part 12. The storage part 11 is tubular and one end passes through the center of the end face of the fixing part 12. The second opening 111 is located at the end of the storage part 11 that passes through the center of the end face of the fixing part 12. The first opening 110 is located at the other end away from the fixing part 12. The first opening 110 is provided with a snap-fit ​​protrusion adapted to the front end 21. The connecting part 2 is tubular and also includes a first rotating shaft 24 and a sleeve 23. The first rotating shaft 24 passes through the sleeve 23 and is located between the front end 21 and the rear end 22. The two ends of the first rotating shaft 24 are fixedly connected to the front end 21 and the rear end 22, respectively. The front end 21 is provided with an umbrella-shaped protrusion that is snapped together with the snap-fit ​​protrusion. The rear end 22 is provided with a snap-fit ​​part.

[0028] Specifically, the front end portion 21 extends through the storage portion 11 via the second opening 111, so that the umbrella-shaped protrusion is snapped into the buckle protrusion. The curvature of the umbrella-shaped protrusion makes it easy for the front end portion 21 to pass through the buckle protrusion and snap into it. At the same time, the lower part of the umbrella surface of the umbrella-shaped protrusion can firmly lock the connecting portion 2 into the storage portion 11 and prevent it from falling off.

[0029] Furthermore, rubber rings 25 are fitted between the front end 21 and the rear end 22 and the sleeve 23. The rubber rings 25 enable the device to have a shock absorption effect and can extend the service life of the device to a certain extent.

[0030] Furthermore, the fixing part 12 is in the shape of a flat, rounded rhomboid prism, and one end of the storage part 11 passes through one end face of the fixing part 12 and is horizontally arranged with the other end face of the fixing part 12.

[0031] Furthermore, a fixing hole 120 is provided on the end face of the fixing part 12, and there are at least two fixing holes 120, which are symmetrically arranged with the storage part 11 as the center.

[0032] Specifically, the robot vacuum cleaner is provided with a mounting post that connects to the fixing hole 120, so that the fixing bracket 1 can be installed on the robot vacuum cleaner. Moreover, the mounting post is detachably connected to the fixing hole 120, so that the fixing bracket 1 can be removed from the robot vacuum cleaner.

[0033] The universal bracket 3 includes an adjustment part 31, on which a snap-fit ​​position 311 is provided. The snap-fit ​​position 311 is adapted to the snap-fit ​​part and snap-fitted to the snap-fit ​​part. The universal bracket 3 can rotate around the connecting part 2 to drive the pulley assembly 4 to rotate. The universal bracket 3 also includes a protective chassis 32, which is disposed below the adjustment part 31. The protective chassis 32 has a mounting position for mounting the pulley assembly 4. The protective chassis 32 protects the pulley assembly 4 and prevents the pulley assembly 4 from being damaged by collision.

[0034] The pulley assembly 4 includes a second rotating shaft 41, a tire 42, and a tire bracket 43. The mounting position has mounting holes 321 on both sides for mounting the second rotating shaft 41. The second rotating shaft 41 passes through the center of the tire bracket 43 and is fixedly connected to it. Both ends are rotatably connected to the mounting holes 321 on both sides of the mounting position. The tire bracket 42 has a plurality of protrusions 430 spaced apart on its periphery. The tire 42 is nested on the periphery of the tire bracket 43.

[0035] Furthermore, the tire 42 is made of foamed rubber, which gives the tire 42 a good anti-slip effect and also makes it easy to clean.

[0036] This utility model provides a pulley structure for a sweeping robot. By setting rubber rings 25 between the front end 21 and rear end 22 of the connecting part 2 and the sleeve 23, the pulley assembly 4 can have a shock absorption effect during movement, increasing the service life of the pulley assembly 4. By using an integrated connecting part 2, no additional screws are needed for fixing, reducing disassembly time. By using a tire 42 made of foamed rubber, it can not only prevent slipping but also make it easy to clean the tire 42 without leaving any dead corners.

[0037] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0038] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A pulley structure for a robotic vacuum cleaner, characterized in that: The assembly includes a fixed bracket (1), a connecting part (2), a universal bracket (3), and a pulley assembly (4). The fixed bracket (1) has a first opening (110) and a second opening (111) through it. The connecting part (2) includes a front end (21) and a rear end (22). The front end (21) extends into the second opening (111) and passes through the first opening (110). The rear end (22) is detachably connected to the upper end of the universal bracket (3). The pulley assembly (4) is detachably connected to the universal bracket (3). The fixed bracket (1) includes a storage part (11) and a fixing part (12). The storage part (11) is tubular and one end passes through the center of the end face of the fixing part (12). The second opening (111) is located at the end of the storage part (11) that passes through the center of the end face of the fixing part (12). The first opening (110) is located at the other end away from the fixing part (12). The first opening (110) is provided with a buckle protrusion adapted to the front end (21). The connecting part (2) is tubular. The connecting part (2) also includes a first rotating shaft (24) and a sleeve (23). The first rotating shaft (24) passes through the sleeve (23). The first rotating shaft (24) is located between the front end (21) and the rear end (22), and the two ends of the first rotating shaft (24) are fixedly connected to the front end (21) and the rear end (22) respectively. The front end (21) is provided with an umbrella-shaped protrusion, and the umbrella-shaped protrusion is connected to the buckle protrusion by a buckle. The rear end (22) is provided with a snap-fit ​​part.

2. The pulley structure of a sweeping robot according to claim 1, characterized in that: The fixing part (12) has a fixing hole (120) on its end face. There are at least two fixing holes (120), which are symmetrically arranged with the storage part (11) as the center.

3. The pulley structure of a sweeping robot according to claim 1, characterized in that: Rubber rings (25) are fitted between the front end (21) and the rear end (22) and the sleeve (23).

4. The pulley structure of a sweeping robot according to claim 1, characterized in that: The universal bracket (3) includes an adjustment part (31), and a snap-fit ​​position (311) is provided on the adjustment part (31). The snap-fit ​​position (311) is adapted to the snap-fit ​​part and snap-fit ​​connected to the snap-fit ​​part. The universal bracket (3) can rotate around the connecting part (2) to drive the pulley assembly (4) to rotate.

5. The pulley structure of a sweeping robot according to claim 4, characterized in that: The universal bracket (3) also includes a protective chassis (32), which is located below the adjustment part (31) and has a mounting position for installing the pulley assembly (4).

6. The pulley structure of a sweeping robot according to claim 5, characterized in that: The pulley assembly (4) includes a second rotating shaft (41), a tire (42) and a tire bracket (43). The mounting position has mounting holes (321) on both sides for mounting the second rotating shaft (41). The second rotating shaft (41) passes through the center of the tire bracket (42) and is fixedly connected to it. Both ends are rotatably connected to the mounting holes (321) on both sides of the mounting position.

7. The pulley structure of a sweeping robot according to claim 6, characterized in that: The tire (42) bracket is provided with a plurality of protrusions (430) at intervals around its periphery. The tire (42) is nested on the periphery of the tire (42) bracket and the tire (42) is made of foamed rubber.

Images