CN114684051A - Overturning type rear bumper of semitrailer - Google Patents

Abstract

The invention discloses a turnover type rear bumper of a semitrailer, which comprises: the lever body assembly is hinged to the frame through the rotating pin, the positioning seat is connected to the frame, the positioning piece is arranged on the lever body assembly, a web plate of the frame corresponds to the positioning piece and is provided with a first positioning hole for inserting the positioning piece, and the positioning seat corresponds to the positioning piece and is provided with a second positioning hole for inserting the positioning piece. When the locating piece is pegged graft in the locating hole one time, the bar body assembly is in the protection position, and the cylinder body is in the position on perpendicular to ground promptly, can satisfy the front truck exclusive use demand, and when the locating piece is pegged graft in locating hole two, the bar body assembly is in the position of accomodating, and the bar body assembly is in the position that inclines to ground promptly, can satisfy the front truck and put a rear truck and articulate back train combination user demand.

Description

Overturning type rear bumper of semitrailer

Technical Field

The invention belongs to the technical field of van vehicles, and particularly relates to a turnover type rear bumper of a semitrailer.

Background

The rear bumper is the inherent structure of semitrailer rear end, has the law requirement of height from the ground. The rear bumper of present semitrailer all is fixed mounting in the frame, in order to realize that semitrailer (front truck) and well-arranged axle rear truck connect into two and hang the train and when normally using smoothly, need demolish the rear bumper of front truck, when it and well-arranged axle rear truck are hung off and exclusive use or the semitrailer is when annual check, need install the rear bumper assembly.

Disclosure of Invention

This application is through providing a convertible rear bumper of semitrailer to this rear bumper awkward problem of solving fixed structure.

The embodiment of the application provides a convertible rear bumper of semitrailer, include:

the lever assembly is hinged to the frame;

the positioning seat is connected to the frame;

the positioning piece is arranged on the lever body assembly, the frame corresponds to the positioning piece and is provided with a first positioning hole for inserting the positioning piece, and the positioning seat corresponds to the positioning piece and is provided with a second positioning hole for inserting the positioning piece.

The beneficial effects of the embodiment are as follows: through setting up in with setting element complex locating hole one and locating hole two for the bar body assembly can be around the pin joint rotation with the frame and select to fix a position at the positioning seat or fix a position at the frame, thereby changes the position of bar body assembly, makes the bar body assembly can switch at protection position or storage position.

On the basis of the above embodiment, the embodiment of the present application may be further modified as follows:

in one embodiment of the present application: the bar body assembly includes:

the upper end of the vertical supporting plate is hinged with the frame;

and the crosspiece is connected to the lower end of the vertical supporting plate. The beneficial effect of this step: .

In one embodiment of the present application: the vertical supporting plates are symmetrically arranged on two sides of the upper end of the crosspiece.

In one embodiment of the present application: the bar body assembly still includes:

the reinforcing rib is arranged between the crosspiece and the vertical supporting plate. The beneficial effect of this step: the strength of the bar body assembly is improved through the reinforcing ribs.

In one embodiment of the present application: the positioning member includes:

the pin shaft is inserted into the lever body assembly, and one end of the pin shaft is provided with a first limiting surface;

the gasket is arranged at the other end of the pin shaft relative to the first limiting surface and is provided with a second limiting surface;

and the nut is connected to the pin shaft and used for positioning the gasket on the pin shaft. The beneficial effect of this step: the quick disassembly and assembly operation of the positioning piece can be realized.

Drawings

In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings used in the detailed description or the prior art description 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 schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the lever assembly in the protection position;

fig. 3 is a schematic structural view of the lever assembly located at the accommodating position.

Wherein, 1 bar body assembly, 101 vertical supporting plates, 102 crosspieces and 103 reinforcing ribs;

2, positioning a second positioning seat 201;

3, positioning parts, 301 pin shafts, 302 gaskets, 303 nuts, 304 limiting surfaces I and 305 limiting surfaces II;

4, rotating the pin;

5 frame, 501 locating hole one.

Detailed Description

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integral; the mechanical connection can be realized by selecting a proper connection mode in the prior art, such as welding, riveting, threaded connection, bonding, pin connection, key connection, elastic deformation connection, buckle connection, interference connection and injection molding; or an electrical connection, transmitting energy or signals by electricity; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

As shown in fig. 1 to 3, a roll-over rear bumper of a semitrailer includes: bar body assembly 1, positioning seat 2, setting element 3, rotating pin 4, bar body assembly 1 articulates in frame 5 through rotating pin 4, positioning seat 2 is connected in frame 5, setting element 3 sets up in bar body assembly 1, the web of frame 5 corresponds setting element 3 and offers the locating hole 501 that is used for grafting setting element 3, positioning seat 2 corresponds setting element 3 and offers the locating hole two 201 that is used for grafting setting element 3, when setting element 3 pegs graft in locating hole 501, bar body assembly 1 is in the protection position, bar body assembly 1 is in the position on perpendicular to ground promptly, can satisfy front truck exclusive use demand, when setting element 3 pegs graft in locating hole two 201, bar body assembly 1 is in the position of accomodating, bar body assembly 1 is in the position on slope ground promptly, can satisfy front truck and the rear axle rear truck articulates rear train combination user demand.

As shown in fig. 2, the lever assembly 1 includes: the frame comprises vertical supporting plates 101 and a crosspiece 102, wherein the upper ends of the vertical supporting plates 101 are hinged to the frame 5 through rotating pins 4, the crosspiece 102 is connected to the lower ends of the vertical supporting plates 101, and the vertical supporting plates 101 are symmetrically arranged on two sides of the upper ends of the crosspiece 102.

As shown in fig. 2, the lever assembly 1 further includes: the reinforcing rib 103 is arranged between the crosspiece 102 and the vertical supporting plate 101, and the reinforcing rib 103 is used for improving the strength of the bar body assembly 1.

As shown in fig. 1, 2, vertical supporting plate 101 includes two sideboard, sideboard sets up in bottom plate upper end both sides along vertical symmetry, the bottom plate is connected with the crosspiece upper end, three through-hole has been seted up along transversely in proper order in the sideboard upper end, wherein the leftmost side through-hole is used for pegging graft commentaries on classics round pin 4, two through-holes in right side are used for pegging graft setting element 3, two sideboard symmetries in same vertical supporting plate 101 set up in the web of frame 5 or the both sides of positioning seat 2, through two sideboard atress simultaneously, can improve the stability of junction structure, strengthening rib 103 is L shape structure, strengthening rib 103 sets up between two sideboard, the stability of structure between the sideboard has been improved through the strengthening rib, the stability of being connected between vertical supporting plate 101 and the crosspiece 102 has also been improved.

As shown in fig. 1, the positioning member 3 includes: the vertical support plate assembly comprises a pin shaft 301, a gasket 302 and a nut 303, wherein the pin shaft 301 is inserted into a through hole correspondingly formed in the lever assembly 1, a first limiting surface 304 is arranged at one end of the pin shaft 301, the gasket 302 is arranged at the other end of the pin shaft 301 relative to the first limiting surface 304, the gasket 302 is provided with a second limiting surface 305, the nut 303 is connected to the pin shaft 301 and used for positioning the gasket 302 on the pin shaft 301, and the first limiting surface 304 and the second limiting surface 305 are matched and used for positioning the vertical support plate 101 on the frame 5 or the positioning seat 2.

In the mechanism, a bar body assembly 1 and a frame 5 are fixed with a positioning piece 3 through a rotating pin 4, the connection is convenient, the strength is safe and reliable, the rotating pin 4 in the mechanism is used as a rotating point of the bar body assembly 1, and the bar body assembly 1 is in a free rotating state by disassembling the positioning piece 3. When the rear bumper is in a normal state (as shown in fig. 2), the positioning piece 3 is connected with the web plate of the frame 5, so that the rear bumper is ensured to be vertical to the ground, and the independent use requirement of a front vehicle is met; when the rear bumper is in a retracted and stored state (as shown in fig. 3), the positioning piece 3 is connected with the positioning seat 2 below the frame 5, so that the rear bumper is ensured to be positioned at a position which is almost parallel to the ground, and the combined use requirements of a front vehicle and a rear vehicle with a middle shaft for hanging a rear train are met. The turnover type rear bumper of the semitrailer is ingenious in structure, convenient to disassemble, simple to operate and reliable in strength.

The foregoing are merely exemplary embodiments of the present invention, and no attempt is made to show structural details of the invention in more detail than is necessary for the fundamental understanding of the art, the description taken with the drawings making apparent to those skilled in the art how the several forms of the invention may be embodied in practice with the teachings of the invention. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent.

Claims (5)

1. The utility model provides a convertible rear bumper of semitrailer which characterized in that includes:

the lever assembly is hinged to the frame;

the positioning seat is connected to the frame;

the positioning piece is arranged on the lever body assembly, the frame corresponds to the positioning piece and is provided with a first positioning hole for inserting the positioning piece, and the positioning seat corresponds to the positioning piece and is provided with a second positioning hole for inserting the positioning piece.

2. The roll over rear bumper of claim 1, wherein the lever assembly comprises:

the upper end of the vertical supporting plate is hinged to the frame;

and the crosspiece is connected to the lower end of the vertical supporting plate.

3. The roll over rear bumper according to claim 2, wherein the vertical support plates are symmetrically disposed at both sides of the upper end of the crosspiece.

4. The roll over rear bumper of claim 3, wherein the bumper body assembly further comprises:

the reinforcing rib is arranged between the crosspiece and the vertical supporting plate.

5. The roll over rear bumper of claim 4, wherein the positioning member comprises:

the pin shaft is inserted into the lever body assembly, and one end of the pin shaft is provided with a first limiting surface;

the gasket is arranged at the other end of the pin shaft relative to the first limiting surface and is provided with a second limiting surface;

and the nut is connected to the pin shaft and used for positioning the gasket on the pin shaft.

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