Automatic direction adjusting device for right rear-view mirror of left driving position semitrailer and working method
阅读说明：本技术 左驾位半挂车右后视镜自动调向装置及工作方法 (Automatic direction adjusting device for right rear-view mirror of left driving position semitrailer and working method ) 是由 王厚朋 宋戈 于 2020-08-24 设计创作，主要内容包括：本申请公开了一种左驾位半挂车右后视镜自动调向装置,包括在牵引车的右后视镜上设有被拉动单元,在半挂车底盘与牵引车牵引座连接处设有拉动单元,拉动单元通过一根拉线管与被拉动单元连接；车辆转弯时,半挂车底盘与牵引车产生相互转动,会向后拉动钢绞线,在钢制线管的约束下拉动被拉动单元带动后视镜同步向外转动,始终保证初始镜像状态,达到消除转弯盲区的目的；工作原理也适用于右驾位半挂车的左后视镜,不但解决了右转弯盲区问题,而且原理结构简单,实用性强。(The application discloses an automatic direction adjusting device for a right rearview mirror of a left driving position semitrailer, which comprises a pulled unit arranged on the right rearview mirror of a tractor, a pulling unit arranged at the joint of a semitrailer chassis and a tractor traction seat, and a pulling unit connected with the pulled unit through a stay wire pipe; when the vehicle turns, the chassis of the semitrailer and the tractor rotate mutually, the steel strand can be pulled backwards, the pulled unit is pulled under the constraint of the steel wire pipe to drive the rearview mirror to synchronously rotate outwards, the initial mirror image state is always ensured, and the purpose of eliminating the turning blind area is achieved; the working principle is also suitable for the left rearview mirror of the right driving position semitrailer, the problem of right turning blind areas is solved, the principle structure is simple, and the practicability is high.)
1. A left driving position semitrailer right rear view mirror automatic direction adjusting device is characterized in that a pulled unit is arranged on a right rear view mirror of a tractor, a pulling unit is arranged at the connection position of a semitrailer chassis and a tractor traction seat, and the pulling unit is connected with the pulled unit through a wire pulling pipe;
the stay wire pipe consists of a steel wire pipe and an internal steel strand; the stay tube is arranged between the pulling unit and the pulled unit along the vehicle body;
the pulled unit comprises two parts: firstly, a first stay wire fixing column is connected to the rear-view mirror body, a stay wire connecting structure is arranged on the first stay wire fixing column, a connecting line between a stay wire connecting point and the axis of the mirror body frame is a mirror body rotating radius line, and the theoretical length is a; secondly, a first bobbin blocking column is fixed on the mirror body frame, a threading structure is arranged on the first bobbin blocking column, the distance between a threading point of the structure and the axis point of the mirror body frame is b, and a = b is required; the first stay wire fixing column and the first pipeline blocking column are required to be positioned on the same plane and form a vertical included angle; a return spring is also arranged on the rear-view mirror body;
the pulling unit comprises two parts: the first type is that a second pull wire fixing column is arranged on the disk surface near the rotation central point of the semitrailer chassis, and a pull wire connecting structure is arranged on the second pull wire fixing column; the second stay wire fixing column is required to be arranged on the left side of the rotation central point, a connecting line of a column axis point of the second stay wire fixing column and the rotation central point of the disk surface forms a theoretical rotation drawing radius line, and the length c of the drawing radius line is equal to the length a of the rotation radius line of the lens body; a second wire pipe blocking column is arranged in front of a second pull wire fixing column of the tractor, and a threading structure is arranged on the second wire pipe blocking column;
the connection structure of the pulled unit, the stay wire tube and the pulling unit is as follows: the steel stranded wires exposed at the two ends of the stay wire pipe respectively penetrate through the threading structures of the wire pipe blocking columns of the pulled unit and the pulling unit and then are respectively connected with the stay wire fixing columns of the units through the stay wire connecting structures of the units, and the steel wire pipe of the stay wire pipe is clamped between the two wire pipe blocking columns.
2. The automatic direction-adjusting device for the right rearview mirror of the left-driving-position semitrailer according to claim 1, wherein one end of the exposed steel strand of the stay wire pipe is provided with a fixing pin, the corresponding stay wire connecting structure of the stay wire fixing column is characterized in that the stay wire fixing column is provided with a pin hole matched with the fixing pin, the pin hole is provided with a wire guide hole, the fixing pin is inserted into the pin hole after the steel strand passes through the wire guide hole, and the corresponding wire tube blocking column is provided with a wire through hole with a slit, so that the slit is required to be matched with the diameter of the steel strand, and the steel strand is extruded and deformed from the slit to enter the wire through hole.
3. The automatic direction-adjusting device for the right rearview mirror of the left driving position semitrailer according to claim 1, characterized in that one end of the exposed steel strand of the stay wire pipe is a threading head, and the corresponding stay wire connecting structure is that a thread, a wire pressing hole and a matched nut are arranged on a stay wire fixing column, and the steel strand is clamped by the nut when passing through the wire pressing hole; meanwhile, the threading structure of the corresponding spool blocking column is characterized in that a threaded hole is formed in the column cap, a bolt with a center hole is installed in the threaded hole, and the tightness of the steel strand is finely adjusted by adjusting the bolt.
4. The automatic left-driving-position semitrailer right rearview mirror direction adjusting device as claimed in claim 1, wherein a steel strand wire head exposed at one end of the wire pulling pipe is provided with a fixing pin, a corresponding wire pulling connecting structure of the wire pulling fixing column is characterized in that a pin hole matched with the fixing pin is formed in the wire pulling fixing column, a wire guide hole is formed in the pin hole, the fixing pin is inserted into the pin hole after the steel strand wire passes through the wire guide hole, and a corresponding wire tube blocking column is of a threading structure that a threading hole with a slit is formed in a column head, so that the slit is required to be matched with the diameter of the steel strand wire, and the steel strand wire is extruded and deformed from the slit to enter the threading hole; the steel strand wire head exposed out of the other end of the stay wire pipe is a threading head, and the corresponding stay wire connecting structure is that a stay wire fixing column is provided with a thread, a wire pressing hole and a matched nut, and the steel strand wire penetrates through the wire pressing hole and is clamped by the nut; meanwhile, the threading structure of the corresponding spool blocking column is characterized in that a threaded hole is formed in the column cap, a bolt with a center hole is installed in the threaded hole, and the tightness of the steel strand is finely adjusted by adjusting the bolt.
5. A connecting method of the left driving position semitrailer right rearview mirror automatic direction adjusting device as claimed in claim 1, characterized in that the pulled unit, the pull wire pipe and the pulling unit are connected by placing a semitrailer chassis and a tractor on a straight line, firstly, one end of a steel strand exposed out of the pull wire pipe penetrates through a threading structure of a first wire pipe blocking column of the pulled unit, and then, the steel strand is fixed on a first pull wire fixing column through the pull wire connecting structure; and guiding the stay wire pipe to a second wire pipe blocking column of the pulling unit along the same trend of the tractor, penetrating the other end of the steel strand through a threading structure of the second wire pipe blocking column to enable the steel strand to be tensioned to the initial angle of the rearview mirror, and fixing the steel strand on a second stay wire fixing column through a stay wire connecting structure.
6. A connecting method of the left driving position semitrailer right rearview mirror automatic direction adjusting device as claimed in claim 1, characterized in that the pulled unit, the stay wire pipe and the pulling unit are connected by placing a semitrailer chassis and a tractor on a straight line, firstly, one end of a steel strand exposed out of the stay wire pipe penetrates through a threading hole of a second stay wire pipe blocking column of the pulling unit, and then, the steel strand is fixed on the second stay wire fixing column through a stay wire connecting structure; and guiding the stay wire pipe to a first wire pipe blocking column of the pulled unit along the tractor, penetrating the other end of the steel strand through a threading hole of the first wire pipe blocking column to enable the steel strand to be tensioned to the initial angle of the rearview mirror, and fixing the other end of the steel strand on a first stay wire fixing column through a stay wire connecting structure.
7. A working method of the automatic steering device for the right rearview mirror of the left-driving-position semitrailer as claimed in claim 1, is characterized in that when a vehicle turns right, corresponding to the fact that a semitrailer chassis rotates left, a steel strand is pulled backwards, a pulled unit is pulled under the constraint of a steel wire pipe to drive the rearview mirror to synchronously rotate outwards, and due to the fact that the theoretical lengths of rotating arms of the two are the same, the rotating speed and the linear moving distance of the two are the same, the rotating angle of the rearview mirror is larger when the vehicle turns, the initial mirror image state is always guaranteed, and the purpose of eliminating turning blind areas is achieved; when the vehicle gradually returns to the straight running, the rearview mirror returns to the original state under the action of the return spring.
Technical Field
The application relates to the field of automobiles, in particular to a rearview mirror of a semi-trailer.
Background
The semitrailer is a trailer pulled by a semitrailer tractor head, and is also called a semitrailer train. The common container transport vehicle is a typical semi-trailer train, the front head is a tractor, and the rear loading part is a semi-trailer. The connection mode is as shown in figure 1 and figure 2, a traction seat 5 (commonly called as a rotary table) is arranged on a tractor 1, a socket is arranged on the traction seat 5, a pin shaft 3 is arranged at the front part of a chassis 2 of a semi-trailer body, and the pin shaft 3 is locked by a pin after entering the socket. A semi-trailer train is a heavy transport vehicle with a relatively long body (up to 13 meters). For a left driving position, because the automobile body is longer and the automobile body and the automobile head rotate mutually, the left turning position can generate 'poor inner wheel', pedestrians, especially people riding the battery car, neglect the safety distance between the pedestrians and the semi-trailer and are easily thrown by the tail or roll under the automobile to cause traffic accidents. The semitrailer is provided with the convex rearview mirrors as other vehicles, and the rearview mirrors play an important role in the driving process of the semitrailer and are equivalent to eyes of the semitrailer; the rearview mirror mounting structure of the semitrailer is characterized in that a vertical
For this reason, the applicant (semitrailer driver) disclosed application No. 201910769631.2 a right side blind-free rearview mirror for a left-hand drive position semitrailer. The technical scheme is that the rearview mirror device comprises a rotating device arranged on a rearview mirror of a vehicle head and a corner control device arranged on a traction seat of a vehicle body, wherein a rearview mirror body can swing left and right by taking a mirror body frame as a shaft under the action of the rotating device; the rotation device consists of a spring baffle, a return spring, a push rod bracket and a miniature pneumatic push rod (a single-action cylinder controlled by an electromagnetic valve), the arc-shaped stroke baffle of the corner control device and a travel switch are connected on a power line of the electromagnetic valve, and the travel switch enters the arc-shaped stroke baffle to be opened when the vehicle turns to a certain angle, so that the miniature pneumatic push rod extends out to push the rearview mirror body to sequentially rotate backwards along with the turning of the vehicle, thereby eliminating a turning blind area and restoring the original position of the rearview mirror body under the action of the return spring when the vehicle turns straight. Although the technology solves the problem of blind areas, the technology needs a brake air source and a storage battery power source of the semi-trailer train, so that the structure is complex, and the installation and the use are inconvenient.
Disclosure of Invention
In order to overcome the defects of the technology, the invention discloses a simple and easy semi-trailer train rearview mirror automatic direction adjusting device without an air source and a storage battery power supply, and simultaneously discloses a working method thereof. The device and the method are suitable for left driving positions and right driving positions.
The automatic direction adjusting device for the right rearview mirror of the left driving position semitrailer is characterized by further comprising a pulled unit arranged on the right rearview mirror of the tractor, a pulling unit arranged at the connection position of a semitrailer chassis and a tractor traction seat, and a pull pipe connected with the pulled unit;
the stay wire pipe is based on the principle of a bicycle brake cable and consists of a steel wire pipe and an internal steel stranded wire; the stay tube is arranged between the pulling unit and the pulled unit along the vehicle body;
the pulled unit includes 1: a first stay wire fixing column is connected to the rear-view mirror body, a stay wire connecting structure is arranged on the first stay wire fixing column, a connecting line between a stay wire connecting point and the axis of the mirror body frame is a mirror body rotating radius line, and the theoretical length is a; the method comprises the following steps: a first bobbin blocking column is fixed on the mirror body frame, a threading structure is arranged on the first bobbin blocking column, the theoretical length between a threading point and the axis of the mirror body frame is b, and a = b is required; the first stay wire fixing column and the first pipeline blocking column are required to be positioned on the same plane and form a vertical included angle; a return spring is also arranged on the rear-view mirror body;
the pulling unit comprises two parts: the first type is that a second pull wire fixing column is arranged on the disk surface near the rotation central point of the semitrailer chassis, and a pull wire connecting structure is arranged on the second pull wire fixing column; the second stay wire fixing column is required to be arranged on the left side of the rotating central point of the disk surface, and the distance c between the two points of the axis point of the second stay wire fixing column and the rotating central point of the disk surface is equal to the length a of the rotating radius line of the mirror body, so that a theoretical rotating drawing radius line is formed; a second wire pipe blocking column is arranged on the tractor, a threading structure is arranged on the second wire pipe blocking column, and the second wire pipe blocking column is required to be positioned in front of a second stay wire fixing column;
the connection structure of the pulled unit, the stay wire tube and the pulling unit is as follows: the steel stranded wires exposed at the two ends of the stay wire pipe respectively penetrate through the threading structures of the wire pipe blocking columns of the pulled unit and the pulling unit and then are respectively connected with the stay wire fixing columns of the units through the stay wire connecting structures of the units, and the steel wire pipe of the stay wire pipe is clamped between the two wire pipe blocking columns.
The specific connection method of the pulled unit, the stay wire pipe and the pulling unit is that one end of the steel strand exposed out of the stay wire pipe penetrates through a threading hole of a first stay wire blocking column of the pulled unit, and then the steel strand is fixed on a first stay wire fixing column through a stay wire connecting structure; and guiding the stay wire pipe to a second wire pipe blocking column of the pulling unit along the tractor, penetrating the other end of the steel strand through a threading hole of the second wire pipe blocking column to enable the steel strand to be tensioned to the initial angle of the rearview mirror, and fixing the steel strand on a second stay wire fixing column through a stay wire connecting structure. Or the following steps:
one end of the steel strand exposed out of the stay wire pipe penetrates through a threading hole of a second stay wire blocking column of the pulling unit, and then the steel strand is fixed on a second stay wire fixing column through a stay wire connecting structure; and guiding the stay wire pipe to a first wire pipe blocking column of the pulled unit along the tractor, penetrating the other end of the steel strand through a threading hole of the first wire pipe blocking column to enable the steel strand to be tensioned to the initial angle of the rearview mirror, and fixing the other end of the steel strand on a first stay wire fixing column through a stay wire connecting structure.
Furthermore, for convenient and simple installation, one end of the steel strand is provided with a fixing pin, the corresponding stay wire connecting structure is provided with a pin hole matched with the fixing pin on the stay wire fixing column, the pin hole is provided with a wire guide hole, the fixing pin is inserted into the pin hole after the steel strand passes through the wire guide hole, and the corresponding wire pipe blocking column is provided with a wire through hole with a slit on a column head, so that the slit is required to be matched with the diameter of the steel strand, and the steel strand is extruded and deformed from the slit to enter the wire through hole.
Furthermore, in order to facilitate simple and convenient installation, the other end of the steel strand is a threading head, and the corresponding stay wire connecting structure is that a stay wire fixing column is provided with a thread, a wire pressing hole and a matched nut, and the steel strand penetrates through the wire pressing hole and is clamped by the nut; meanwhile, the threading structure of the corresponding spool blocking column is characterized in that a threaded hole is formed in the column cap, a bolt with a center hole is installed in the threaded hole, and the tightness of the steel strand is finely adjusted by adjusting the bolt.
It should be noted that, when the pulling unit, the stay tube and the pulled unit are connected, the chassis of the semitrailer and the tractor are in a straight line.
The working principle of the invention is the same as that of a bicycle brake cable, because two ends of the core wire of the brake cable are respectively fixed on the brake handle and the moving point of the brake, two ends of the wire tube are propped against by the fixed points, the core wire of the brake cable has the tendency of being straightened when in work, and the brake handle pulls the brake under the constraint of the wire tube. Similarly, when the vehicle turns, the chassis of the semitrailer and the tractor rotate mutually, when the vehicle turns right, the semitrailer rotates leftwards corresponding to the chassis of the semitrailer, because the fixed point of the steel strand of the pulling unit is on the left side of the rotation center, the steel strand can be pulled backwards, the pulled unit is pulled under the constraint of the steel wire pipe to drive the rearview mirror to synchronously rotate outwards, and because the theoretical lengths of the rotating arms of the semitrailer are the same, the rotating speed and the linear movement distance of the semitrailer are the same, and the rotating angle of the rearview mirror is larger than the turning angle of the vehicle, so that the initial mirror image state is always ensured, and the purpose of eliminating the turning blind area is achieved; when the vehicle gradually returns to the straight running, the rearview mirror returns to the original state under the action of the return spring; when the vehicle turns left, to the tractor right turn, pulling unit turning point can block the post to pulling unit spool and be close to in the rotation center left side, and the section steel strand wires that expose this moment can be bent naturally, does not influence the normal use of this device.
In addition, the rotation included angle is set to be 90 degrees, because the semitrailer is gradual when running and turning on the highway, the relative rotation of the semitrailer chassis and the tractor can never form a right angle, and the rotation angle of the rearview mirror completely meets the use requirement.
The working principle of the invention is also suitable for the left rearview mirror of the right driving position semitrailer and is also in the protection scope of the application.
Compared with the prior art, the blind area turning device has the advantages that the problem of a right turning blind area is solved, the principle structure is simple, and the practicability is high.
Drawings
FIG. 1 is a schematic illustration of a front view of the main construction of a semi-trailer train;
FIG. 2 is a schematic illustration of a top view of the main configuration of the semi-trailer train;
FIG. 3 is a schematic view of the construction of the pulled unit of the embodiment;
FIG. 4 is a view A-A of FIG. 3 showing the mirror housing and mirror frame attachment structure;
FIG. 5 is a view B-B of FIG. 3 showing one configuration of the pulled unit;
FIG. 6 is a view B-B of FIG. 3 showing another configuration of the pulled unit;
FIG. 7 is a schematic view showing the construction of the pulling unit of the embodiment;
FIG. 8 is a schematic view showing a connection structure of the pulling unit, the wire pulling tube and the unit to be pulled of the embodiment;
FIG. 9 is a schematic front view showing the construction of a pulling unit (pulled unit) of the embodiment;
FIG. 10 is a side view of an embodiment of a wire fixation post;
FIG. 11 is a top view of FIG. 9;
FIG. 12 is a side view of an embodiment conduit blocking post;
fig. 13 is a front view schematically showing the construction of the pulling unit with respect to the unit to be pulled.
Illustration, 1-tractor, 2-semitrailer chassis, 3-pin shaft, 4-rearview mirror, 5-tractor seat, 6-first pull wire fixing column, 7-wire hole, 8-mirror body frame, 9-shaft sleeve, 10-steel stranded wire, 11-steel wire tube, 12-first wire tube blocking column, 13-wire, 14-rotation drawing radius wire, 15-second pull wire fixing column, 16-second wire tube blocking column, 17-disc surface rotation central point, 18-return spring, 19-fixed pin, 20-pin hole, 21-wire hole, 22-hollow bolt, 23-nut, 24-wire pressing hole.
Detailed Description
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