Steering wheel with protection structure

Abstract

The utility model provides a steering wheel with a protection structure, which belongs to the technical field of window cleaning machines, is arranged at the edge of a window cleaning machine body and comprises a rotating ring and a universal wheel, the universal wheel is embedded in the rotating ring and freely rotates, the rotating ring is of an annular structure and protrudes out of the edge of the machine body, and the rotating ring rotates to do circular motion when touching a working surface. An elastic protection structure is arranged on the periphery of the rotating ring and can absorb impact force generated in the moving process of the steering wheel, vibration of a window cleaning machine body is reduced, the stability of the machine is improved, friction between the rotating ring and the working face is reduced, and the rotating ring is effectively prevented from being damaged when making contact with the working face. The service life of the steering wheel is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model belongs to window cleaning machine technical field, and specifically relates to a steering wheel with protection structure. BACKGROUND

[0002] The steering wheel of the existing window cleaning machine is generally a simple wheel, which is mainly used for assisting the window cleaning machine body to walk along the working surface. However, the current steering wheel lacks a protection structure, so that the steering wheel directly contacts the working surface, cannot effectively buffer the impact force generated in the movement process, and the window cleaning machine body vibrates violently during operation, which seriously affects the stability of the machine and makes the machine more vulnerable to damage. Especially in a more severe working environment, the wear rate of the steering wheel is significantly accelerated, which not only shortens the service life of the window cleaning machine and reduces its performance, but also leads to an increase in maintenance costs and downtime, thereby reducing the user's experience.

[0003] Therefore, it is necessary to design a steering wheel with a protection structure to solve the problems in the prior art. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a steering wheel with a protection structure to solve the problems raised in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A steering wheel with a protection structure is arranged at the edge of a window cleaning machine body, the steering wheel comprises a rotating ring and a universal wheel, the universal wheel is rotatably connected to the body through a connecting rod, the universal wheel is embedded in the rotating ring to rotate freely, the rotating ring is rotatably connected to the edge of the body through a fixing piece, the rotating ring protrudes from the edge of the body in a ring structure, the rotating ring touches the working surface to rotate in a circular motion, and the outer periphery of the rotating ring is provided with an elastic protection structure.

[0007] Further, one side of the elastic protection structure close to the rotating ring is provided with a first tooth pattern, the first tooth pattern is in meshing connection with a second tooth pattern arranged on the outer periphery of the rotating ring, and the first tooth pattern is used for increasing the friction force between the elastic protection structure and the rotating ring.

[0008] Further, the outer surface of the elastic protection structure is in a netted or striped pattern.

[0009] Further, the elastic protection structure is made of rubber.

[0010] Further, the lower part of the rotating ring is composed of a plurality of arc pieces, gaps are arranged between adjacent arc pieces, and the elastic protection structure is in a ring structure and is sleeved on the outer periphery of the arc pieces.

[0011] Further, the steering wheels are arranged at four corners of the window cleaning machine.

[0012] Further, the lower surface of the rotating ring is provided with a cleaning brush.

[0013] Further, the outer wall of the fixing member is rotationally connected with the inner wall of the rotating ring, the fixing member is provided with a through hole, the connecting rod passes through the through hole, a spring is sleeved on the connecting rod, one end of the spring is fixed on the fixing member and the other end is fixed on the universal wheel.

[0014] Compared with the prior art, the beneficial effects of the present application are:

[0015] By arranging the elastic protection structure on the outer periphery of the steering wheel, the impact force generated during the movement of the steering wheel can be absorbed, the vibration of the window cleaning machine body is reduced, the stability of the machine is improved, the friction between the steering wheel and the working surface is reduced, the steering wheel is effectively prevented from being damaged when contacting the working surface, the wear speed is reduced, and the good state of the steering wheel is maintained. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of the specification, and are used together with the embodiments of the present application to explain the present application, and do not constitute a limitation on the present application. In the drawings:

[0017] Figure 1 is a schematic diagram of the steering wheel with a protection structure of the present application;

[0018] Figure 2 is a schematic diagram of the steering wheel with a protection structure of the present application;

[0019] Figure 3 is a schematic diagram of the rotating ring of the present application;

[0020] Figure 4 is a schematic diagram of the universal wheel of the present application;

[0021] In the drawings: 1- steering wheel, 11- rotating ring, 111- arc piece, 12- universal wheel, 13- connecting rod, 14- fixing member, 141- through hole, 15- elastic protection structure, 2- machine body. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0023] A steering wheel 1 with a protective structure, the steering wheel 1 is arranged at the edge of a window cleaning machine body 2, the steering wheel 1 comprises a rotating ring 11 and a universal wheel 12, the universal wheel 12 is rotatably connected with the body 2 through a connecting rod 13, the universal wheel 12 is embedded in the rotating ring 11 and freely rotates, the rotating ring 11 is rotatably connected with the edge of the body 2 through a fixing part 14, the rotating ring 11 protrudes from the edge of the body 2 in a ring structure, the rotating ring 11 touches the working surface and rotates in a circular motion, and the outer periphery of the rotating ring 11 is provided with an elastic protective structure 15.

[0024] The universal wheel 12 is embedded in the rotating ring 11 and freely rotates, which enhances the maneuverability of the window cleaning machine in complex paths, such as right-angle turns and obstacle crossing; the protruding design of the rotating ring 11 makes the steering wheel 1 contact the working surface before the body 2, absorbs part of the collision energy, reduces the collision force between the body 2 and the working surface, effectively reduces the damage risk of the window cleaning machine body 2, and in addition, the steering wheel 1 can be electrically connected with the control system, and the signal of the steering wheel 1 colliding with the working surface is fed back to the control system, and the control system responds to avoid according to the signal, effectively protecting the window cleaning machine body 2. The outer periphery of the rotating ring 11 is provided with an elastic protective structure 15, which acts as a buffer layer to absorb the impact force of the collision, avoiding direct impact of the metal parts of the window cleaning machine on the working surface, protecting the equipment and window structure, and at the same time, the elastic protective structure 15 can also reduce the friction between the steering wheel 1 and the working surface, reduce the wear speed, maintain the good state of the steering wheel 1, and make the window cleaning machine more stable, efficient and reliable in use.

[0025] Further, one side of the elastic protective structure 15 close to the rotating ring 11 is provided with a first tooth pattern, and the first tooth pattern is engaged and connected with a second tooth pattern arranged on the outer periphery of the rotating ring 11, for increasing the friction force between the elastic protective structure 15 and the rotating ring 11.

[0026] The elastic protective structure 15 and the rotating ring 11 are engaged and connected with tooth patterns, the static friction force is increased through mechanical interlocking, the slipping between the elastic protective structure 15 and the rotating ring 11 caused by speed change or load fluctuation is prevented, the power transmission efficiency is ensured, in addition, the tooth pattern can disperse the contact stress, reduce local wear, and prolong the service life of the rotating ring 11 and the elastic structure.

[0027] Further, the outer surface of the elastic protective structure 15 is in a netted or striped pattern.

[0028] The surface texture of the elastic protective structure 15 can effectively increase the micro friction with the working surface, and significantly reduce the risk of slipping, especially on a smooth surface.

[0029] Further, the elastic protective structure 15 is made of rubber.

[0030] Due to the low elastic modulus, the elastic protection structure 15 is made of rubber material, which can effectively absorb vibration and impact energy, such as the instantaneous load when the window cleaning machine crosses the window frame, reduce the fatigue damage of the internal parts of the equipment, in addition, the rubber has strong weather resistance, can maintain stable performance in high and low temperature (-30℃ to 80℃) and humid environment, suitable for outdoor high-altitude operation, compared with metal or plastic, the noise of rubber when contacting with the working surface is lower, which meets the environmental protection requirements of urban high-altitude operation.

[0031] Further, the lower part of the rotating ring 11 is composed of a plurality of circular arc pieces 111, and gaps are provided between adjacent circular arc pieces 111. The elastic protection structure 15 is annular and is sleeved on the outer periphery of the circular arc pieces 111.

[0032] The segmented design of the circular arc pieces 111 allows the rotating ring 11 to have local elastic deformation, avoiding the rigidity of the overall structure being too strong to cause the universal wheel 12 to be stuck. The rotating ring 11 can better adapt to different working surface shapes and unevenness when contacting with the working surface.

[0033] Further, the steering wheels 1 are arranged at the four corners of the window cleaning machine.

[0034] The four-corner layout forms a rectangular support surface, which balances the weight of the machine body 2 and prevents tilting or overturning caused by one-sided overload. In addition, the corner steering wheels 1 can independently respond to obstacles, cooperatively improve the obstacle crossing ability, and reduce the shaking of the machine body 2.

[0035] Further, the lower surface of the rotating ring 11 is provided with a cleaning brush.

[0036] The brush synchronously cleans the working surface when the steering wheel 1 rotates, avoiding the secondary cleaning process and improving the work efficiency. In addition, the brush provides additional friction when contacting with the working surface, which assists the steering wheel 1 to improve the grip on a slippery surface, such as a glass after rain.

[0037] Further, the outer wall of the fixing member 14 is rotationally connected with the inner wall of the rotating ring 11. The fixing member 14 is provided with a through hole 141, the connecting rod 13 passes through the through hole 141, a spring is sleeved on the connecting rod 13, one end of the spring is fixed on the fixing member 14, and the other end is fixed on the universal wheel 12.

[0038] The spring can provide certain buffering and damping effect, absorb and reduce the direct impact between the connecting rod 13 and the universal wheel 12, reduce the vibration of the window cleaning machine body 2, thereby reducing wear and tear and prolonging the service life.

[0039] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application have been described in detail, for the skilled in the art, it still can be modified, or for the equivalent replacement of part of the technical features of the technical solutions recorded in the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, shall be included within the scope of the present application.

Claims

1. A steering wheel with a protective structure, which is provided at the edge of a duster body, characterized in that: The steering wheel comprises a rotating ring and a universal wheel, the universal wheel is connected with the body through a connecting rod, the universal wheel is embedded in the rotating ring and rotates freely, the rotating ring is connected with the edge of the body through a fixing part, the rotating ring is in a ring structure and protrudes from the edge of the body, the rotating ring touches the working surface and rotates in a circular motion, and the outer periphery of the rotating ring is provided with an elastic protection structure.

2. A steerable wheel with protective structure according to claim 1, characterized in that: One side of the elastic protection structure is provided with a first thread, the first thread is connected with a second thread arranged on the outer periphery of the rotating ring in a meshing mode, and the first thread is used for increasing the friction between the elastic protection structure and the rotating ring.

3. A steerable wheel with protective structure according to claim 1, characterized in that: The outer surface of the elastic protection structure is in a netted or striped shape.

4. The steerable wheel with protective structure according to claim 1, characterized in that: The elastic protection structure is made of rubber.

5. The steerable wheel with protective structure according to claim 1, characterized in that: The lower part of the rotating ring is composed of a plurality of arc pieces, gaps are arranged between adjacent arc pieces, the elastic protection structure is in a ring structure and is sleeved on the outer periphery of the arc pieces.

6. A steerable wheel with protective structure according to claim 1, characterized in that: The steering wheel is arranged at four corners of the window cleaning machine.

7. The steerable wheel with protective structure according to claim 1, characterized in that: The lower surface of the rotating ring is provided with a cleaning brush.

8. The steerable wheel with protective structure according to claim 1, characterized in that: The outer wall of the fixing part is connected with the inner wall of the rotating ring in a rotating mode, the fixing part is provided with a through hole, the connecting rod passes through the through hole, a spring is sleeved on the connecting rod, one end of the spring is fixed on the fixing part, and the other end of the spring is fixed on the universal wheel.

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