Steering wheel structure of driving type cleaning machine

Abstract

The steering wheel structure of the driving type cleaning machine comprises a base, an outer gear and a positioning seat, the base is provided with a positioning groove, the outer gear is used for installing a steering wheel, a driving groove is formed in the middle of the outer gear, the outer gear is installed on the inner side wall of the positioning groove in a pivoted mode, and an inner gear is installed on the base in a pivoted mode and arranged in the driving groove. The inner gear is connected with the transmission shaft, the outer diameter of the inner gear is smaller than the inner diameter of the positioning groove, the positioning seat is arranged in the receding groove and fixedly installed on the base, the positioning seat extends upwards and is provided with a displayer, and the displayer is arranged in the display section. An inner gear meshed with the outer gear is arranged in a driving groove of the outer gear, and an avoiding groove for mounting the positioning seat is formed between the inner gear and the outer gear, so that a display can be conveniently mounted on the positioning seat; the avoiding groove provides a threading space for the display wire harness at the same time, and the positioning seat structure also plays a role in limiting the cable so as to protect the cable and prevent the cable from being rolled into gear engagement.

Description

Technical Field

[0001] This utility model relates to the field of cleaning machines, and in particular to a steering wheel structure for a ride-on cleaning machine. Background Technology

[0002] Ride-on cleaning machines include ride-on sweepers and ride-on scrubbers, available in a variety of shapes and sizes to suit a wide range of facilities. From small, flexible ride-on sweepers and scrubbers to heavy-duty, high-efficiency large ride-on cleaning machines.

[0003] Existing cleaning machines are generally controlled by a steering wheel. To facilitate the timely acquisition of driving data, a display screen is usually installed on the steering wheel. The display screen is usually embedded in the steering wheel for easy observation, such as Chinese Patent 202320587682.5. However, its structure is complex, so the cost of production and assembly is high, and its size is also relatively large. Utility Model Content

[0004] The main purpose of this invention is to propose a steering wheel structure for a ride-on cleaning machine, which aims to improve the existing steering wheel structure of cleaning machines, making it simple in structure and easy to assemble, thereby further reducing production costs.

[0005] To achieve the above objectives, this utility model proposes a steering wheel structure for a ride-on cleaning machine, comprising:

[0006] The base is provided with a positioning groove;

[0007] An external gear is used to mount a steering wheel, the steering wheel has a display area in the center, and the external gear has a drive groove in the center. The external gear is pivotally mounted on the inner wall of the positioning groove.

[0008] The internal gear is pivotally mounted on the base and located in the drive groove. The internal gear is connected to the transmission shaft. The outer diameter of the internal gear is smaller than the inner diameter of the positioning groove. The internal gear and the positioning groove form a clearance groove. The internal gear meshes with the external gear.

[0009] A positioning seat is disposed in a clearance groove and fixedly installed on a base. The positioning seat extends upward and is provided with a display, which is located in a display area.

[0010] In the actual design, the base and steering wheel are set coaxially, so as not to affect normal use in terms of use and appearance. In order to transmit the rotation of the steering wheel to the steering wheel, an internal gear that meshes with the external gear is set in the drive groove of the external gear. The outer diameter of the internal gear is smaller than that of the external gear. Then, a clearance groove for mounting the positioning seat is formed between the internal gear and the external gear, which facilitates the mounting of the display on the positioning seat. Its structure is simple and stable, and its size is also small, and the assembly process is also simpler.

[0011] The clearance slot provides space for the monitor cable harness to pass through, and the positioning seat structure also serves to limit the cable, intending to protect the cable from being caught in the gear meshing. Attached Figure Description

[0012] Figure 1 This is a half-sectional schematic diagram of the present invention;

[0013] Figure 2 This is a sectional view of the present invention in the height direction;

[0014] Figure 3 This is a horizontal sectional view of the present invention;

[0015] Figure 4 A schematic diagram showing the fit between the external gear and the internal gear;

[0016] Figure 5 This is a three-dimensional schematic diagram of the present invention.

[0017] In the picture,

[0018] 1 is the base, 10 is the positioning groove.

[0019] 2 represents the external gear, 20 represents the steering wheel, 21 represents the crank arm, 22 represents the drive groove, and 23 represents the clearance groove.

[0020] 3 represents the internal gear, and 30 represents the drive shaft.

[0021] 4 is the positioning base, and 40 is the display.

[0022] 51 is the first screw hole, and 52 is the second screw hole.

[0023] 6 is a wire guide hole.

[0024] 71 is the first bearing, and 72 is the second bearing.

[0025] 8 represents the shaft. Detailed Implementation

[0026] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0027] It should be noted that if any directional indication (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.) is involved in the embodiments of this utility model, the directional indication is only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0028] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0029] like Figures 1 to 5 As shown, a steering wheel structure for a ride-on cleaning machine includes:

[0030] Base 1, wherein the base 1 is provided with a positioning groove 10;

[0031] An external gear 2 is used to mount a steering wheel 20. The steering wheel 20 has a display area in its center, and the external gear 2 has a drive groove 22 in its center. The external gear 2 is pivotally mounted on the inner wall of the positioning groove 10.

[0032] The internal gear 3 is pivotally mounted on the base 1 and located in the drive groove 22. The internal gear 3 is connected to the transmission shaft 30. The outer diameter of the internal gear 3 is smaller than the inner diameter of the positioning groove 10. The internal gear 3 and the positioning groove 10 form a clearance groove 23. The internal gear 3 meshes with the external gear 2.

[0033] Positioning seat 4 is located in the clearance groove 23 and fixedly installed on the base 1. The positioning seat 4 extends upward and is provided with a display 40, which is located in the display area.

[0034] In the actual design, the base 1 and the steering wheel 20 are set coaxially, so as not to affect normal use in terms of use and appearance. In order to transmit the rotation of the steering wheel 20 to the steering wheel, an internal gear 3 that meshes with the external gear 2 is set in the drive groove 22 of the external gear 2. The outer diameter of the internal gear 3 is smaller than that of the external gear 2. Then, a clearance groove 23 for mounting the positioning seat 4 is formed between the internal gear 3 and the external gear 2, which facilitates the mounting of the display 40 on the positioning seat 4. Its structure is simple and stable, and its size is also small, and the assembly process is also simpler.

[0035] Specifically, the steering wheel 20 is provided with a downwardly extending crank arm 21. The lower end of the crank arm 21 extends to the position between the display 40 and the base 1. The lower end of the crank arm 21 is installed on the external gear 2 by a screw. By adopting the setting of the crank arm 21, interference with the display screen is avoided when the steering wheel 20 is rotated, and the structure is simple and stable.

[0036] In this embodiment of the utility model, the upper wall of the external gear 2 is higher than the upper wall of the base 1, and the lower end of the crank arm 21 is installed on the upper wall of the external gear 2. The simple misalignment structure facilitates the installation of the steering wheel 20.

[0037] Specifically, the inner peripheral wall of the inner gear 3 is provided with an inner tooth portion, and the outer peripheral wall of the outer gear 2 is provided with an outer tooth portion that meshes with the inner tooth portion, thereby transmitting the rotation of the steering wheel 20 to the inner gear 3; of course, a staggered gear meshing structure, such as a helical tooth structure, can also be used.

[0038] In this embodiment of the invention, the positioning base 4 is provided with a first screw hole 51, and the housing of the display 40 is provided with a second screw hole 52 that mates with the first screw hole 51. A screw extends into the first screw hole 51 and the second screw hole 52 to fix the housing to the positioning base 4. In actual assembly, the steering wheel 20 is installed first, and then the display 40 is fixed to the positioning base 4. The screw can be installed from bottom to top or from top to bottom to meet different installation requirements and effectively simplify the assembly process.

[0039] Specifically, the positioning seat 4 has a wire hole 6 in the middle, which is used for the cable to pass through and connect to the display 40. At the same time, the positioning seat also has the function of protecting the cable from being caught in the gear.

[0040] In this embodiment of the invention, the positioning seat 4 is arc-shaped, thereby achieving a relatively stable support effect in a smaller space.

[0041] Specifically, a first bearing 71 is provided between the outer peripheral wall of the external gear 2 and the inner peripheral wall of the positioning groove 10, thereby ensuring the stable rotation of the external gear 2.

[0042] In this embodiment of the utility model, the positioning groove 10 is provided with an upwardly extending shaft portion 8, and the inner wall of the shaft portion is provided with a second shaft 72 bearing. The transmission shaft 30 is installed in the middle of the second bearing, thereby ensuring the stable rotation of the internal gear 3.

[0043] Specifically, the curved arm 21 is provided in three parts, which serves to identify the direction.

[0044] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A steering wheel structure for a ride-on cleaning machine, characterized in that, include: The base is provided with a positioning groove; An external gear is used to mount a steering wheel, the steering wheel has a display area in the center, and the external gear has a drive groove in the center. The external gear is pivotally mounted on the inner wall of the positioning groove. An internal gear is pivotally mounted on a base and located in a drive groove. The internal gear is connected to a transmission shaft. The outer diameter of the internal gear is smaller than the inner diameter of the positioning groove. The internal gear and the positioning groove form a clearance groove. The internal gear meshes with an external gear. A positioning seat is disposed in a clearance groove and fixedly installed on a base. The positioning seat extends upward and is provided with a display, which is located in a display area.

2. The steering wheel structure of the ride-on cleaning machine as described in claim 1, characterized in that: The steering wheel has a downwardly extending crank arm, the lower end of which extends between the display and the base, and the lower end of the crank arm is mounted to an external gear by a screw.

3. The steering wheel structure of the ride-on cleaning machine as described in claim 2, characterized in that: The upper wall of the external gear is higher than the upper wall of the base, and the lower end of the crank arm is mounted on the upper wall of the external gear.

4. The steering wheel structure of the ride-on cleaning machine as described in claim 1, characterized in that: The inner peripheral wall of the internal gear is provided with an internal tooth portion, and the outer peripheral wall of the external gear is provided with an external tooth portion that meshes with the internal tooth portion.

5. The steering wheel structure of the ride-on cleaning machine as described in claim 1, characterized in that: The positioning seat is provided with a first screw hole, and the housing of the display is provided with a second screw hole that mates with the first screw hole. After a screw extends into the first screw hole and the second screw hole, the housing is fixed to the positioning seat.

6. The steering wheel structure of the ride-on cleaning machine as described in claim 1, characterized in that: The positioning base has a cable pass-through hole in the middle, which is used for cable to pass through and connect to the display.

7. The steering wheel structure of the ride-on cleaning machine as described in claim 1, characterized in that: The positioning seat is arc-shaped.

8. The steering wheel structure of the ride-on cleaning machine as described in claim 1, characterized in that: A first bearing is provided between the outer peripheral wall of the external gear and the inner peripheral wall of the positioning groove.

9. The steering wheel structure of the ride-on cleaning machine as described in claim 1, characterized in that: The positioning groove has an upwardly extending shaft portion, and the inner wall of the shaft portion is provided with a second bearing, with the transmission shaft installed in the middle of the second bearing.

10. The steering wheel structure of the ride-on cleaning machine as described in claim 2, characterized in that: The crank arm has three parts.

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