CN216982468U

CN216982468U - Quick rotary mechanism of quick-witted front wheel is ploughed a little

Info

Publication number: CN216982468U
Application number: CN202220417723.1U
Authority: CN
Inventors: 刘新胜; 高杰
Original assignee: Chongqing Rato Technology Co Ltd
Current assignee: Chongqing Rato Technology Co Ltd
Priority date: 2022-02-28
Filing date: 2022-02-28
Publication date: 2022-07-19
Anticipated expiration: 2032-02-28
Also published as: WO2023159701A1

Abstract

The utility model belongs to the technical field of mini-tillers, and provides a front wheel quick rotating mechanism of a mini-tilter, which comprises: a fixed seat; the two ends of the connecting shaft are fixedly connected with the fixed seat; the limiting shafts are sequentially arranged at intervals around the central line of the connecting shaft, and two ends of each limiting shaft are fixedly connected with the fixing seat; the mounting frame is provided with a front wheel, one end of the mounting frame, which is far away from the front wheel, is provided with a sliding chute, the sliding chute is connected with the connecting shaft in a sliding way and can rotate around the central line of the connecting shaft, the end part of one end of the mounting frame, which is far away from the front wheel, is provided with a limiting groove matched with the limiting shaft, and one end of the limiting groove, which is far away from the front wheel, is opened; and one end of the elastic piece is connected with the connecting shaft, the other end of the elastic piece is connected with the mounting frame, and the elastic piece has the tendency that the mounting frame moves towards the direction close to the limiting shaft in a natural state. The front wheel quick rotating mechanism of the mini-tiller is simple in structure and high in switching efficiency.

Description

Quick rotary mechanism of quick-witted front wheel is ploughed a little

Technical Field

The utility model relates to the technical field of mini-tillers, in particular to a front wheel quick rotating mechanism of a mini-tilter.

Background

As shown in fig. 1, a rotating mechanism of a front wheel of a conventional mini-tiller comprises a plurality of first through holes 1 formed in a mounting frame, a second through hole 2 formed in a fixing seat, a plug pin 3 and a split pin 4.

The rotating mechanism has the following disadvantages: when changing the angle of front wheel, need extract the split pin earlier, then extract the bolt, later side can rotate the mounting bracket in order to change the angle of front wheel, waits to rotate the front wheel and targets in place the back, need insert the bolt earlier again, inserts the split pin side again and can lock it, and the operation is complicated, and switching efficiency is lower.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a quick rotating mechanism for a front wheel of a mini-tiller, which is simple to operate and improves the switching efficiency.

In order to achieve the above object, the present invention provides a front wheel rapid rotation mechanism of a mini-tiller, comprising:

a fixed seat;

the two ends of the connecting shaft are fixedly connected with the fixed seat;

the limiting shafts are sequentially arranged around the central line of the connecting shaft at intervals, and two ends of each limiting shaft are fixedly connected with the fixing seat;

the mounting frame is provided with a front wheel, one end of the mounting frame, which is far away from the front wheel, is provided with a sliding chute, the mounting frame is connected with the connecting shaft in a sliding way through the sliding chute and can rotate around the central line of the connecting shaft, the end part of one end of the mounting frame, which is far away from the front wheel, is provided with a limiting groove matched with the limiting shaft, and one end of the limiting groove, which is far away from the front wheel, is opened; and

elastic component, its one end with connecting shaft, the other end with the mounting bracket is connected, and under the natural state, elastic component has and makes the mounting bracket is to being close to the trend of the direction motion of spacing axle.

Further, one end, far away from the front wheel, of the mounting frame is provided with an arc guide surface.

Furthermore, the number of the limiting shafts is two.

Furthermore, the included angle of a connecting line between the two limiting shafts and the shaft axis of the connecting shaft is alpha, and alpha is more than or equal to 80 degrees and less than or equal to 90 degrees.

Further, α is 85 °.

Further, the elastic member is a spring.

Further, hooks are arranged at two ends of the spring, and two ends of the spring are connected with the connecting shaft and the mounting frame through the hooks.

The utility model has the beneficial effects that:

according to the quick rotating mechanism for the front wheel of the mini-tiller, when the angle of the front wheel is switched, only the mounting frame needs to be moved in the direction away from the limiting shaft by exerting force, the limiting shaft is separated from the limiting groove, then the mounting frame is rotated, the limiting groove corresponds to the other limiting shaft, the pulling force is removed, the limiting pin can be inserted into the limiting groove under the action of the elastic force of the elastic piece, the structure is simple, and the switching efficiency is high.

Drawings

In order to more clearly illustrate the detailed description of the utility model or the technical solutions in the prior art, the drawings that are needed in the detailed description of the utility model or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

FIG. 1 is a perspective view of a front wheel rotating mechanism of a micro-cultivator in the prior art;

fig. 2 is a perspective view of a front wheel quick rotating mechanism of a mini-tiller according to an embodiment of the utility model;

FIG. 3 is an enlarged view taken at A of FIG. 2;

fig. 4 is a sectional view of the front wheel quick rotating mechanism of the mini-tiller shown in fig. 2;

fig. 5 is an enlarged view at B shown in fig. 4.

Reference numerals:

the front wheel structure comprises a first through hole 1, a second through hole 2, a bolt 3, a cotter pin 4, a fixing seat 5, a mounting groove 51, a through hole 52, a connecting shaft 6, a limiting shaft 7, a mounting frame 8, a sliding groove 81, a limiting groove 82, an arc guide surface 83, an elastic part 9, a hook 91 and a front wheel 10.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only used as examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the utility model pertains.

In the description of the present application, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model.

Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

As shown in fig. 2-5, the utility model provides a quick rotating mechanism for a front wheel of a mini-tiller, which comprises a fixed seat 5, a connecting shaft 6, a limiting shaft 7, a mounting rack 8 and an elastic part 9.

Wherein, the fixing seat 5 is fixedly connected with the frame of the mini-tiller. Two ends of the connecting shaft 6 are fixedly connected with the fixed seat 5. Specifically, the fixing base 5 is provided with mounting grooves 51 with openings at two adjacent sides, and in the mounting grooves 51 formed in the connecting shaft 6, two ends of the connecting shaft 6 are fixedly connected with the fixing base 5. Specifically, one end of the connecting shaft 6 is provided with a thread, and the other end is provided with a limiting portion, so that the connecting shaft 6 is fixed on the fixing seat 5 through cooperation with a nut.

The number of the limiting shafts 7 is multiple, the limiting shafts 7 are sequentially arranged around the central line of the connecting shaft 6 at intervals, and two ends of each limiting shaft 7 are fixedly connected with the fixing seat 5. Specifically, the limiting shaft 7 is disposed in the mounting groove 51, and two ends of the limiting shaft are fixedly connected with the fixing seat 5. Specifically, through holes 52 are formed in two sides of the mounting groove 51, and two ends of the limiting shaft 7 are in interference fit with the through holes 52.

Front wheel 10 is installed to the one end of mounting bracket 8, and the spout 81 has been seted up to the one end of keeping away from front wheel 10 of mounting bracket 8, and mounting bracket 8 is through this

spout

81 and 6 sliding connection of connecting axle, and mounting bracket 8 can rotate around the central line of connecting axle 6, and the spacing groove 82 that suits with spacing axle 7 is still seted up to the tip of the one end of keeping away from front wheel 10 of mounting bracket 8, and the one end opening of keeping away from front wheel 10 of spacing groove 82. During the use, establish spacing axle 7 card in spacing groove 82, can reach the pivoted purpose of restriction mounting bracket 8. One end of the elastic piece 9 is connected with the connecting shaft 6, the other end is connected with the mounting frame 8, and in a natural state, the elastic piece 9 has a tendency of enabling the mounting frame 8 to move towards a direction close to the limiting shaft 7.

When the angle of front wheel 10 needs to be changed, draw mounting bracket 8 hard and make mounting bracket 8 remove and make spacing axle 7 and spacing groove 82 separate to the direction of keeping away from spacing axle 7, later rotate mounting bracket 8 for spacing groove 82 is corresponding with another spacing axle 7, removes the pulling force, under the effect of the elastic force of elastic component 9, makes the spacer pin insert in the spacing groove 82.

The front wheel quick rotating mechanism of the mini-tiller is simple in structure and high in switching efficiency.

In one embodiment, the end of the mounting frame 8 remote from the front wheel 10 is provided with a radiused guide surface 83. During the use, through the cooperation of circular arc spigot surface 83 with the spacer pin for mounting bracket 8 is when rotating, and circular arc spigot surface 83 contacts with the spacer pin, thereby can judge more fast whether spacing groove 82 is corresponding with the spacer pin, and then further improve switching efficiency.

In one embodiment, the number of the stopper shafts 7 is two.

In one embodiment, the included angle between the connecting line between the two limiting shafts 7 and the axis of the connecting shaft 6 is alpha, and alpha is more than or equal to 80 degrees and less than or equal to 90 degrees.

In one embodiment, α is 85 °.

In one embodiment, the resilient member 9 is a spring. The elastic piece 9 with the structure has simple structure.

In one embodiment, hooks 91 are provided at both ends of the spring, and both ends of the spring are connected with the connecting shaft 6 and the mounting frame 8 through the hooks.

This structure, convenient to detach and change the spring.

In the description of the present invention, numerous specific details are set forth. It is understood, however, that embodiments of the utility model may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.

Claims

1. The utility model provides a quick rotary mechanism of quick-witted front wheel is ploughed a little which characterized in that: the method comprises the following steps:

a fixed seat;

the two ends of the connecting shaft are fixedly connected with the fixed seat;

2. The quick-rotating mechanism of the front wheel of the micro-cultivator of claim 1, characterized in that: and one end of the mounting rack, which is far away from the front wheel, is provided with an arc guide surface.

3. The quick rotating mechanism of the front wheel of the mini-tiller according to claim 1, characterized in that: the number of the limiting shafts is two.

4. The quick rotating mechanism of the front wheel of the mini-tiller according to claim 3, characterized in that: the included angle of a connecting line between the two limiting shafts and the axial lead of the connecting shaft is alpha which is more than or equal to 80 degrees and less than or equal to 90 degrees.

5. The quick-rotating mechanism of front wheel of micro-cultivator of claim 4, characterized in that: α is 85 °.

6. The front wheel rapid rotating mechanism of the micro-cultivator of any one of claims 1 to 5, characterized in that: the elastic piece is a spring.

7. The quick rotating mechanism of the front wheel of the mini-tiller according to claim 6, wherein: the two ends of the spring are provided with hooks, and the two ends of the spring are connected with the connecting shaft and the mounting frame through the hooks.