CN210971248U

CN210971248U - Hand steering mechanism

Info

Publication number: CN210971248U
Application number: CN201921767347.3U
Authority: CN
Inventors: 张植; 李云伍; 刘得雄; 张国勇; 胡腾达; 曹青青; 张越
Original assignee: Southwest University
Current assignee: Southwest University
Priority date: 2019-10-21
Filing date: 2019-10-21
Publication date: 2020-07-10
Anticipated expiration: 2029-10-21

Abstract

The embodiment of the utility model discloses a hand steering mechanism, including four brake cables, steering rocker arm, first rocker arm bracket, steering column and handle, and the one end fixed connection of steering rocker arm is on first rocker arm bracket, and the other end of steering rocker arm is installed left and right steering drag link through the bolt hole, is provided with the second rocker arm bracket that erects four brake cables on the steering rocker arm, is provided with the shaft hole on the steering rocker arm between bolt hole and second rocker arm bracket; the steering column passes through axis of rotation movable mounting on rocker bracket, be provided with the couple on the steering column, the couple is connected with the spring, second rocker bracket is connected to the other end of spring, the top of first rocker bracket is provided with micro-gap switch, pass through rocker bracket cooperation realization steering mechanism through steering column and steering rocker, realization steering mechanism that can be light turns to, when the steering column resumes initial position, preferentially send trigger signal, power is preferentially cut off, then brake, the production of power interference phenomenon has effectively been avoided.

Description

Hand steering mechanism

Technical Field

The embodiment of the utility model provides a relate to vehicle braking technical field, concretely relates to hand steering mechanism.

Background

At present, the walking type vehicle is basically not powered by a machine, only general mechanical braking is used, and the condition that the vehicle is powered and braked at the same time, namely power interference is avoided. However, when the machine is used to provide power, the power transmitted to the driving wheels must be cut off when braking is required in order to avoid power interference.

The problem of insufficient power interference is easily caused when a steering mechanism brakes after the machine is used for providing power for the existing hand-held vehicle.

SUMMERY OF THE UTILITY MODEL

Therefore, the embodiment of the utility model provides a hand steering mechanism passes through the rocker bracket cooperation through the steering column and turns to the rocking arm and realizes steering mechanism, and realization steering mechanism that can be light turns to, and initial position in-process is got back to the steering column, preferentially sends trigger signal, and power is preferred to be cut off, then brakes, has avoided the production of power interference phenomenon, effectively solves the problem that braking in-process power interferes.

In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:

a hand steering mechanism comprises four brake cables, a steering rocker arm, a first rocker arm bracket, a steering column and a handle arranged at the top of the steering column, wherein one end of the steering rocker arm is fixedly connected to the first rocker arm bracket, the other end of the steering rocker arm is provided with a left steering tie rod and a right steering tie rod through bolt holes, the steering rocker arm is provided with a second rocker arm bracket for erecting the four brake cables, and the steering rocker arm positioned between the bolt holes and the second rocker arm bracket is provided with a shaft hole;

the steering column is movably mounted on the first rocker bracket through a rotating shaft, a hook is arranged on the steering column and connected with a spring, the other end of the spring is connected to the top of the second rocker bracket, and a micro switch used for generating a trigger signal by contacting with the steering column is arranged at the top of the first rocker bracket.

Further, the steering column includes that the steering column B who installs on first rocker bracket through the axis of rotation manages, and the suit is at the steering column A pipe on steering column B manages, the top at steering column A pipe is installed to the handle, be provided with on steering column A pipe and the steering column B pipe and cooperate and run through the unthreaded hole, and steering column A pipe and steering column B pipe are connected through installing the tight set bolt who runs through the unthreaded hole.

Furthermore, one end of each of the four brake cables is connected to the bottom of the steering column B tube, and the hook is arranged on the tube body of the steering column B tube positioned at the upper part of the rotating shaft.

Furthermore, the steering rocker arm is mounted on a frame of the hand-held vehicle through a shaft hole, and the steering rocker arm rotates around the shaft hole.

Further, the initial position of the steering column B pipe is vertical to the steering rocker arm.

The embodiment of the utility model provides a have following advantage:

the utility model discloses a steering column passes through the rocker bracket cooperation with the steering rocker arm and realizes steering mechanism, and the realization steering mechanism that can be light turns to, and initial position in-process is got back to the steering column, preferentially sends trigger signal, and power is preferred to be cut off, then brakes, has avoided the production of power interference phenomenon.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.

Fig. 1 is a schematic front view structure diagram of a steering mechanism according to an embodiment of the present invention;

fig. 2 is a schematic top view of a steering mechanism according to an embodiment of the present invention.

In the figure: 1-a handle; 2-steering column a tube; 3-steering column B tube; 4-hooking; 5-a rotating shaft; 6-a first rocker arm bracket; 7-a steering rocker arm; 8-a second rocker arm bracket; 9-a brake cable; 10-a spring; 11-a microswitch; 12-a through light hole; 13-left and right tie rods; 14-bolt holes; 15-shaft hole; 17-tightening the bolt.

Detailed Description

The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 and 2, an embodiment of the present invention provides a hand-held steering mechanism, which includes four brake cables 9, a steering rocker arm 7, a first rocker bracket 6, a steering column and a handle 1 installed on the top of the steering column, wherein one end of the steering rocker arm 7 is fixedly connected to the first rocker bracket 6, a left and right tie rod 13 is installed on the other end of the steering rocker arm 7 through a bolt hole 14, a second rocker bracket 8 for erecting the four brake cables 9 is arranged on the steering rocker arm 7, and a shaft hole 15 is arranged on the steering rocker arm 7 between the bolt hole 14 and the second rocker bracket 8;

the steering column is movably mounted on a first rocker arm bracket 6 via a rotary shaft 5, the steering column being in clearance fit with the rotary shaft 5 and being rotatable about the rotary shaft 5.

The steering column is provided with a hook 4, the hook 4 is connected with a spring 10, the other end of the spring 10 is connected to the top of the second rocker arm bracket 8, and the top of the first rocker arm bracket 6 is provided with a micro switch 11 which is used for being in contact with the steering column to generate a trigger signal.

The steering column drives the steering rocker arm 7 to swing through the swing handle 1, and the left and right steering tie rods 13 can be pulled to move left and right through the matching relation of the steering rocker arm 7 and the bolts of the steering tie rods 13, so that steering is realized.

The steering column includes that to install the steering column B pipe 3 on first rocker bracket 6 through axis of rotation 5, the suit is at steering column A pipe 2 on steering column B pipe 3, the top at steering column A pipe 2 is installed to handle 1, be provided with on steering column A pipe 2 and the steering column B pipe 3 and cooperate and run through unthreaded hole 12, and steering column A pipe 2 and steering column B pipe 3 are connected through installing at the tight set bolt 17 that runs through unthreaded hole 12, for the stability of guaranteeing the connection, generally select two to run through unthreaded hole 12 and fix with tight set bolt 17 simultaneously.

The selected two through light holes 12 at different positions are combined to form steering columns with different lengths, so that the positions of the handle 1 are different to meet the requirements of users with different heights.

One ends of four brake cables 9 are connected to the bottom of the steering column B tube 3, and the hook 4 is arranged on the tube body of the steering column B tube 3 positioned at the upper part of the rotating shaft 5.

The steering rocker arm 7 is mounted on the frame of the hand-held vehicle through the shaft hole 15, and the steering rocker arm 7 rotates around the shaft hole 15.

The initial position of the steering column B tube 3 of the utility model is vertical to the steering rocker arm 7, when the steering column is at the initial position, the initial position is shown as I in figure 1, the position pulled by the brake cable 9 is farthest, the whole vehicle is in a braking state, and the steering column is contacted with the micro switch 11;

under the action of the handle 1, the steering column rotates around the rotating shaft 5, so that the steering column deviates from an initial position, namely II in figure 1, the brake is released, and the steering column and the microswitch 11 are released from a release state.

When the vehicle needs to be braked in the process of running, the steering column is firstly contacted with the microswitch 11 in the process of returning to the initial position, and a braking signal is provided for the system so as to cut off the power immediately and avoid power interference.

The utility model discloses a steering column passes through the rocker bracket cooperation with the steering rocker arm and realizes steering mechanism, and the realization steering mechanism that can be light turns to, and initial position in-process is got back to the steering column, and micro-gap switch 11 sends triggering signal preferentially, and power cuts off preferentially, then brakes, the effectual production of avoiding the power interference phenomenon among the braking process.

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. A hand steering mechanism is characterized by comprising four brake cables (9), a steering rocker arm (7), a first rocker arm bracket (6), a steering column and a handle (1) arranged at the top of the steering column, wherein one end of the steering rocker arm (7) is fixedly connected to the first rocker arm bracket (6), the other end of the steering rocker arm (7) is provided with a left and right steering tie rod (13) through a bolt hole (14), the steering rocker arm (7) is provided with a second rocker arm bracket (8) for erecting the four brake cables (9), and the steering rocker arm (7) between the bolt hole (14) and the second rocker arm bracket (8) is provided with a shaft hole (15);

the steering column passes through axis of rotation (5) movable mounting on first rocker bracket (6), be provided with couple (4) on the steering column, couple (4) are connected with spring (10), the top at second rocker bracket (8) is connected to the other end of spring (10), the top of first rocker bracket (6) is provided with and is used for producing trigger signal with the steering column contact micro-gap switch (11).

2. A hand-held steering mechanism according to claim 1, wherein the steering column comprises a steering column B tube (3) mounted on the first rocker bracket (6) through a rotating shaft (5), a steering column A tube (2) sleeved on the steering column B tube (3), the handle (1) is mounted on the top of the steering column A tube (2), the steering column A tube (2) and the steering column B tube (3) are provided with through unthreaded holes (12) which are matched, and the steering column A tube (2) and the steering column B tube (3) are connected through set bolts (17) mounted on the through unthreaded holes (12).

3. A hand steering mechanism according to claim 2, wherein one end of each of four brake cables (9) is connected to the bottom of the B-tube (3) of the steering column, and the hook (4) is provided on the shaft of the B-tube (3) of the steering column above the rotating shaft (5).

4. A hand steered mechanism according to claim 1, wherein the pitman arm (7) is mounted to the frame of the hand steered vehicle via an axle hole (15), and the pitman arm (7) rotates around the axle hole (15).

5. A hand steered mechanism according to claim 2, wherein the initial position of the B tube (3) is perpendicular to the steering arm (7).