CN107838864A - A kind of car steering wheel plumbing arm extraction mechanism - Google Patents

Abstract

The invention discloses a pull-out mechanism for a vertical arm of a passenger car steering machine, which includes a flat-headed cylindrical pin, a cotter pin, a grabbing hook, a large bolt, and a support seat body; the support seat body is provided with a U-shaped support frame and a middle bolt hole; The U-shaped support frame is evenly arranged on the straight edge of the outer circumference of the support seat body, and the middle bolt hole is arranged at the center of the support seat body; the U-shaped support frame is provided with a flat-head cylindrical pin hole, and the flat-head cylindrical pin passes through The flat-head cylindrical pin hole is provided; the large bolt passes through the middle bolt hole and is arranged at the center of the support seat body; the grab hook is in an L-shaped right-angle structure, and its upper end is provided with a circular through hole through which the flat-head cylindrical pin passes. Through the circular through hole on the grapple hook, connect the U-shaped support frame and the grapple hook; through the design of the grapple hook and the middle large bolt, the present invention can not only effectively hook the steering machine vertical arm in the process of pulling out the steering machine vertical arm The arm can also use the rotation of the large bolt in the middle to pull out the drop arm lightly and conveniently.

Description

A pull-out mechanism for the vertical arm of the steering machine of a passenger car

technical field

The invention belongs to the technical field of passenger cars, and relates to a pull-out mechanism for a drop arm of a steering machine of a passenger car.

Background technique

The steering mechanism of the passenger car is an important mechanical part of the passenger car, which is of great significance to the normal operation of the passenger car, and the drop arm of the steering machine is an important part to ensure the normal operation of the steering mechanism. The vertical arm of the steering machine is installed at the end of the output shaft of the steering machine, and it is closely matched with the output shaft of the steering machine. During daily use, due to the action of alternating loads, the drop arm and the output shaft of the steering machine are more closely matched; at the same time , Most of the drop arms of the steering machine are cast parts, and the weight is relatively large. After installation on the steering machine, the reserved space for disassembly and assembly is small. The above three reasons lead to the process of disassembling and replacing the drop arm of the steering machine. Difficult to pull the arm out. The invention provides a solution for pulling out the vertical arm of the steering machine.

Contents of the invention

The object of the present invention is to provide a pull-out mechanism for the drop arm of the steering machine of a passenger car, which can conveniently and quickly pull out the drop arm of the steering machine, and has the characteristics of simple structure, good reliability, and low cost.

The purpose of the present invention can be achieved through the following technical solutions:

A passenger car steering machine vertical arm pull-out mechanism, including flat-headed cylindrical pins, cotter pins, grabbing hooks, large bolts, and a support seat body; wherein, the support seat body is provided with a U-shaped support frame and a middle bolt hole; a U-shaped The support frame is evenly arranged on the straight edge of the outer circumference of the support seat body, and the middle bolt hole is provided at the center of the support seat body; the U-shaped support frame is provided with a flat-head cylindrical pin hole, and the flat-head cylindrical pin passes through The flat-head cylindrical pin hole is set; the large bolt passes through the middle bolt hole and is arranged at the center of the support seat body; the grapple is in an L-shaped right-angle structure, and the upper end of the L-shaped right-angle structure is provided with a circular through hole. The flat-headed cylindrical pin passes through the circular through hole on the grapple to connect the U-shaped support frame and the grapple; one end of the flat-headed cylindrical pin is provided with a through hole, and the cotter pin passes through the through-hole on the flat-headed cylindrical pin.

The three groups of U-shaped support frames are evenly arranged on the three outer circumferential straight edges of the support base; the included angle between the center lines of each group of U-shaped support frames is 120 degrees.

The agency uses the following steps:

First, rotate the large bolt located in the middle bolt hole, so that the L-shaped right-angle structure of the grapple can hook the inner surface of the vertical arm of the steering machine; The angle becomes larger, and then the L-shaped right-angle structure of the grapple is placed on the inner surface of the steering machine drop arm to hook the steering machine drop arm; after the grapple hooks the steering machine drop arm, the angle between it and the support body is 90° After the hook catches the drop arm of the steering machine, the large bolt can be rotated until one end of the large bolt touches the outer surface of the drop arm of the steering machine. The hook will move outward at the same time, and then drive the drop arm of the steering machine to disengage from the output shaft of the steering machine.

Beneficial effects of the present invention: the present invention not only can effectively hook the steering machine drop arm in the process of pulling out the steering machine drop arm through the design of the grab hook and the middle large bolt, but also can utilize the rotation of the middle large bolt, which is light and convenient It is convenient to pull out the drop arm; the invention has compact structure and is convenient to use, which is beneficial for the operator to pull out the drop arm of the steering machine.

Description of drawings

In order to facilitate the understanding of those skilled in the art, the present invention will be further described below in conjunction with the accompanying drawings.

Fig. 1 is the front view of the present invention;

Fig. 2 is the top view of the present invention;

The parts represented by each label in the accompanying drawings are as follows: 1-flat cylindrical pin, 2-U-shaped support frame, 3-middle bolt hole, 4-cotter pin, 5-grabbing hook, 6-big bolt, 7-support seat body.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

As shown in Figure 1-2, a pull-out mechanism for the drop arm of the steering wheel of a passenger car includes a flat-head cylindrical pin 1, a cotter pin 4, a grabbing hook 5, a large bolt 6, and a support seat body 7;

Wherein, the support seat body 7 is provided with a U-shaped support frame 2 and an intermediate bolt hole 3. Specifically, the U-shaped support frame 2 is evenly arranged on the outer circumferential straight edge of the support seat body 7, and the intermediate bolt hole 3 Set at the center of the support seat body 7; further, three sets of U-shaped support frames 2 are evenly arranged on the three outer circumferential straight edges of the support seat 7; the angle between the center lines of each group of U-shaped support frames is 120 degrees ;

Wherein, the U-shaped support frame 2 is provided with a flat-headed cylindrical pin hole, and the flat-headed cylindrical pin 1 passes through the provided flat-headed cylindrical pin hole; the large bolt 6 passes through the middle bolt hole 3 and is arranged at the center of the support seat body 7 , can rotate around the central bolt hole;

Wherein, the grapple 5 has an L-shaped right-angle structure, and a circular through hole is arranged on the upper end of the L-shaped right-angle structure, and the flat-headed cylindrical pin 1 passes through the circular through hole on the grapple 5 to connect the U-shaped support frame 2 And the grapple 5, the grapple 5 can swing around the flat cylindrical pin 1, the lower part of the L-shaped right-angle structure on the grapple 5 is used to hook the back of the steering machine drop arm, when the drop arm is pulled out, the L-shaped right-angle structure will drive the vertical The arm is disengaged from the output shaft of the steering machine;

Wherein, one end of the flat-headed cylindrical pin 1 is provided with a through hole, and the flat-headed cylindrical pin 1 passes through the flat-headed cylindrical pin hole on the U-shaped support frame 2 and the circular through-hole on the grabbing hook 5, and the grabbing hook 5 is connected to the U-shaped on the support frame 2; at the same time, the grapple can swing around the flat cylindrical pin, which is convenient for hooking and taking off the drop arm;

Wherein, the cotter pin 4 passes through the through hole on the flat-headed cylindrical pin 1, restricts the flat-headed cylindrical pin 1 to move radially in the through hole, and prevents the flat-headed cylindrical pin from falling off from the through hole of the U-shaped support frame;

When the present invention is in use, first rotate the large bolt 6 located in the middle bolt hole 3, so that the L-shaped right-angle structure of the grab hook 5 can catch the inner surface of the vertical arm of the steering machine; hook 5, so that the angle between the grapple 5 and the support seat body 7 becomes larger, and then the L-shaped right-angle structure of the grapple 5 is placed on the inner surface of the vertical arm of the steering machine to hook the vertical arm of the steering machine; the grapple 5 hooks the steering machine After the drop arm, the included angle between it and the support seat body 7 is 90 degrees, so that the pull-out mechanism is evenly stressed during the process of pulling out the drop arm; after the grab hook 5 catches the drop arm of the steering machine, the large bolt can be rotated 6. Continue to rotate the large bolt 6 until one end of the large bolt 6 touches the outer surface of the vertical arm of the steering machine. Due to the interaction between the large bolt 6 and the support base body 7, the support base body 7 together with the support base body 7 The grab hook 5 on the top will move outward at the same time, and then drive the steering machine drop arm to break away from the steering machine output shaft, so that the steering machine drop arm can be pulled out simply and effectively. The invention is simple and practical.

The preferred embodiments of the invention disclosed above are only to help illustrate the invention. The preferred embodiments are not exhaustive in all detail, nor are the inventions limited to specific embodiments described. Obviously, many modifications and variations can be made based on the contents of this specification. This description selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can well understand and utilize the present invention. The invention is to be limited only by the claims, along with their full scope and equivalents.

Claims (3)

1. a kind of car steering wheel plumbing arm extraction mechanism, it is characterised in that including flat-nosed cylinder pin, split pin, grapple, big spiral shell Bolt, support base body；

Wherein, the support base body is provided with U-shaped support frame and middle screw keyhole；U-shaped support frame is uniformly arranged on support In the excircle straight line trimming of seat body, middle screw keyhole is arranged on the center of support base body；

Flat-nosed cylinder pin-and-hole, flat-nosed cylinder pin-and-hole of the flat-nosed cylinder pin through setting are provided with the U-shaped support frame；Institute State the center that king-bolt is arranged at support base body through middle screw keyhole；

The L-shaped right-angle structure of grapple, the upper end of the L-shaped right-angle structure are provided with manhole, and flat-nosed cylinder pin passes through Manhole on grapple, connect U-shaped support frame and grapple；Described flat-nosed cylinder pin one end is provided with through hole, the split pin Through hole through on flat-nosed cylinder pin.

A kind of 2. car steering wheel plumbing arm extraction mechanism according to claim 1, it is characterised in that U-shaped branch described in three groups Support is uniformly arranged in three excircle straight line trimmings of support base sheet；Each group U-shaped support frame centerlines are 120 Degree.

3. a kind of car steering wheel plumbing arm extraction mechanism according to claim 1, it is characterised in that the mechanism uses step It is as follows：

Rotation is located at the king-bolt in middle screw keyhole first so that the L-shaped right-angle structure of grapple can catch on steering wheel plumbing arm Inner surface；

The grapple that can be rotated around flat-nosed cylinder pin is swung again so that grapple and support base body angle become big, and then by the L of grapple The inner surface that shape right-angle structure is placed on steering wheel plumbing arm hooks steering wheel plumbing arm；

After grapple catches on steering wheel plumbing arm, the angle of itself and support base body is 90 degree；

After grapple catches on steering wheel plumbing arm, you can rotation king-bolt, until the appearance of steering wheel plumbing arm is arrived on one end top of king-bolt Face, continue to rotate king-bolt, support base body will while move outward together with the grapple being connected on support base body, and then band Dynamic steering wheel plumbing arm off-direction machine output shaft.