CN109911032B

CN109911032B - Quick folding movable guardrail device for engineering truck

Info

Publication number: CN109911032B
Application number: CN201910216563.7A
Authority: CN
Inventors: 王菲菲; 徐照新; 于飞
Original assignee: CRRC Shandong Co Ltd
Current assignee: CRRC Shandong Co Ltd
Priority date: 2019-03-21
Filing date: 2019-03-21
Publication date: 2021-07-02
Anticipated expiration: 2039-03-21
Also published as: CN109911032A

Abstract

The invention discloses a quick folding movable guardrail device for an engineering truck, which comprises guardrail upright posts, a vertical tube component, a horizontal tube component, a guardrail locking device and a protective plate, wherein the main body of the guardrail upright posts is a square upright post, a plurality of guardrail upright posts are uniformly distributed and welded on two sides of a rail flat car, upright post upper positioning plates are welded on the upper parts of the guardrail upright posts, upright post lower plugging plates are welded on the bottom parts of the guardrail upright posts, and hinged bases are welded on the upright post lower plugging plates; one end of the vertical pipe assembly is connected with the hinge base through a pin and can rotate around the axis of the pin, and the other end of the vertical pipe assembly is hinged with the transverse pipe assembly through a pin; the horizontal pipe assembly can be horizontally laid down and lifted; the guardrail locking device is arranged at the end part of the transverse pipe assembly, and the guard plate is arranged at the bottom of the guardrail upright post. The invention has firm and reliable structure and reduces vibration; the folding and unfolding time is greatly reduced, the operation efficiency is improved, and the safety of personnel and the operation safety can be effectively protected.

Description

Quick folding movable guardrail device for engineering truck

Technical Field

The invention relates to a quick folding movable guardrail device for an engineering truck, and belongs to the technical field of engineering trucks.

Background

The engineering truck is required to be provided with guardrails in an open area, so that people and objects are prevented from falling off the truck. However, since the engineering vehicle is equipped with various working machines and is required to have a 360-degree dead-angle-free rotation function, which causes interference with the guard rail, the height of the guard rail is required to be designed to be variable. At present mainstream design is that to pull out the guardrail for pluggable formula, pulls out the guardrail during operation and tears down, and the precious activity duration of this kind of design waste occupies limited operating space, and operating efficiency is extremely low. Therefore, the rapid folding movable guardrail device for the engineering vehicle needs to be developed.

Disclosure of Invention

The invention aims to solve the technical problem of providing a rapid folding movable guardrail device for achieving rapid folding and unfolding of a guardrail, aiming at the defects in the prior art.

In order to solve the technical problem, the invention provides a quick folding movable guardrail device for an engineering truck, which comprises guardrail upright posts, a vertical pipe assembly, a transverse pipe assembly, a guardrail locking device and a protective plate, wherein the main body of the guardrail upright posts is a square upright post, a plurality of guardrail upright posts are uniformly distributed and welded on two sides of a rail flat car, upright post upper positioning plates are welded on the upper parts of the guardrail upright posts, upright post lower plugging plates are welded on the bottom parts of the guardrail upright posts, and hinged bases are welded on the upright post lower plugging plates; one end of the vertical pipe assembly is connected with the hinge base through a pin and can rotate around the axis of the pin, and the other end of the vertical pipe assembly is hinged with the transverse pipe assembly through a pin; the horizontal pipe assembly can be horizontally laid down and lifted; the guardrail locking device is arranged at the end part of the transverse pipe assembly, and the guard plate is arranged at the bottom of the guardrail upright post.

And the upright post upper positioning plate is provided with a circular arc-shaped opening, and the circular arc-shaped opening is matched with the vertical pipe assembly.

The guardrail locking device comprises a U-shaped bolt, a spring, a cylindrical pin, a locking nut and a handle, wherein two end parts of the U-shaped bolt are of threaded structures; the cylindrical pin penetrates through the end part of the transverse pipe assembly, two ends of the cylindrical pin are installed at the bottom of the thread of the U-shaped bolt, the spring is sleeved on the thread structure of the U-shaped bolt, and the pre-compression amount of the spring is adjusted through the locking nut; the welding has the handle on the U type bolt, and the operation handle can make guardrail locking device rotate around the axis of cylindric lock after the guardrail expandes, because the effect of spring force is taut guardrail all the time, realizes the locking of guardrail.

Rubber rollers are mounted on the U-shaped bottom of the U-shaped bolt and the handle.

And hinges are arranged between the guardrail upright posts.

Has the advantages that: compared with the prior art, the invention has firm and reliable structure, and the positioning device can effectively reduce the gap between the guardrail and the square tube and reduce the vibration; the folding and unfolding time of the movable guardrail is greatly reduced, the operation efficiency is improved, the problem that the time for dismantling the guardrail is long when an engineering vehicle operates is solved, the operation of tools and personnel on the engineering vehicle is facilitated, the guardrail is unfolded and lifted, and the safety of the personnel and the operation safety can be effectively protected.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a front view of the guardrail post of the present invention in a structural schematic form;

FIG. 3 is a schematic top view of the construction of the guardrail post of the present invention;

FIG. 4 is a front elevational view of the guardrail locking mechanism of the present invention in schematic configuration;

figure 5 is a schematic top view of the guardrail locking device of the present invention.

In the figure: the guardrail comprises a guardrail upright post 1, a vertical tube component 2, a horizontal tube component 3, a guardrail locking device 4, a guard plate 5, a hinged base 6, an upright post upper positioning plate 7, an upright post lower plugging plate 8, a U-shaped bolt 9, a spring 10, a cylindrical pin 11, a locking nut 12, a handle 13, a rubber roller 14 and a hinge 15.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples.

Fig. 1 is a schematic structural diagram of the present invention.

The invention provides a quick folding movable guardrail device for an engineering truck, which comprises guardrail upright posts 1, vertical pipe assemblies 2, transverse pipe assemblies 3, guardrail locking devices 4 and guard plates 5.

The guardrail upright post 1 can be arranged on a rail flat car and provides support for the movable guardrail;

the vertical pipe assembly 2 and the horizontal pipe assembly 3 are main components of the movable guardrail;

the guardrail locking device 4 locks the guardrail when the guardrail is unfolded, so that the guardrail is prevented from being folded accidentally during travelling;

the guard plate 5 can be wound around the vehicle to prevent tiny objects from falling down.

A plurality of guardrail upright posts 1 are uniformly distributed and welded on two sides of the rail flat car, one end of the vertical pipe component 2 is connected with the hinged base 6 through a pin and can rotate around the axis of the pin, and the other end of the vertical pipe component is hinged with the horizontal pipe component 3 through a pin; standpipe subassembly 2 forms the parallelogram structure with horizontal pipe assembly 3, utilizes the parallelogram characteristic, and horizontal pipe assembly 3 can realize the level and fall and rise, and the guardrail can realize the level promptly and fall and rise.

The guardrail locking device 4 is arranged at the end part of the transverse pipe component 3.

The guard plate 5 is arranged at the bottom of the guardrail upright post 1 and is positioned at the bottommost part of the guardrail, so that small objects can be prevented from falling off.

And hinges 15 are arranged between the guardrail upright posts 1.

Fig. 2 is a front view showing the structure of the guardrail post of the present invention.

Figure 3 is a schematic top view of the structure of the guardrail post of the present invention.

The main body of the guardrail upright post 1 is a square upright post, and an upright post upper positioning plate 7 is welded at the upper part of the guardrail upright post to provide longitudinal support and positioning for the movable guardrail and eliminate longitudinal and transverse gaps; the bottom welding has closure plate 8 under the stand, the welding has articulated base 6 on the closure plate 8 under the stand, and articulated base 6 is folding for the movable guardrail provides rotatory support.

The upright post upper positioning plate 7 is provided with an arc-shaped opening which is matched with the vertical pipe component 2; the vertical pipe assembly 2 is just clamped into the circular arc-shaped opening when being erected, so that the vertical pipe assembly can bear longitudinal load, longitudinal gaps are eliminated, and meanwhile, a positioning function is provided for the guardrail when being unfolded.

Figure 4 is a front view showing the structure of the barrier locking device of the present invention.

The guardrail locking device 4 comprises a U-shaped bolt 9, a spring 10, a cylindrical pin 11, a locking nut 12 and a handle 13, wherein two end parts of the U-shaped bolt 9 are of threaded structures; the cylindrical pin 11 penetrates through the end part of the transverse pipe assembly 3, two ends of the cylindrical pin are installed at the bottom of the thread of the U-shaped bolt 9, the spring 10 is sleeved on the thread structure of the U-shaped bolt 9, and the pre-compression amount of the spring is adjusted through the locking nut 12, so that the tension force of the guardrail is adjusted; the U-shaped bolt 9 is welded with a handle 13, when the guardrail is unfolded, the handle 13 can be operated to enable the guardrail locking device 4 to rotate around the axis of the cylindrical pin 11, and the guardrail is always tensioned under the action of spring force, so that the guardrail is locked.

Rubber covered rollers 14 are arranged on the U-shaped bottom of the U-shaped bolt 9 and the handle 13, so that vibration is reduced, and the comfort of the handle is improved.

Compared with the prior art, the invention has firm and reliable structure, and the positioning device can effectively reduce the gap between the guardrail and the square tube and reduce the vibration; the folding and unfolding time of the movable guardrail is greatly reduced, and the operation efficiency is improved.

The above-described embodiments of the invention are intended to be illustrative only and are not intended to be limiting, as all changes that come within the scope of or equivalence to the invention are intended to be embraced therein.

Claims

1. The utility model provides a quick folding movable guardrail device for machineshop car which characterized in that: the guardrail comprises guardrail upright posts (1), vertical tube assemblies (2), transverse tube assemblies (3), guardrail locking devices (4) and guard plates (5), wherein the main bodies of the guardrail upright posts (1) are square upright posts, a plurality of guardrail upright posts (1) are uniformly distributed and welded on two sides of a rail flat car, upright post upper positioning plates (7) are welded on the upper parts of the guardrail upright posts, upright post lower plugging plates (8) are welded on the bottom parts of the guardrail upright posts, and hinged bases (6) are welded on the upright post lower plugging plates (8); one end of the vertical pipe assembly (2) is connected with the hinged base (6) through a pin and can rotate around the axis of the pin, the other end of the vertical pipe assembly is hinged with the horizontal pipe assembly (3) through a pin, and the horizontal pipe assembly (3) can be horizontally laid down and lifted; the guardrail locking device (4) is arranged at the end part of the transverse pipe assembly (3), and the guard plate (5) is arranged at the bottom of the guardrail upright post (1); the guardrail locking device (4) comprises a U-shaped bolt (9), a spring (10), a cylindrical pin (11), a locking nut (12) and a handle (13), and two end parts of the U-shaped bolt (9) are of threaded structures; the cylindrical pin (11) penetrates through the end part of the transverse pipe assembly (3), two ends of the cylindrical pin are installed at the bottom of the thread of the U-shaped bolt (9), the spring (10) is sleeved on the thread structure of the U-shaped bolt (9), and the pre-compression amount of the spring is adjusted through the locking nut (12); the welding has handle (13) on U type bolt (9), and operation handle (13) can make guardrail locking device (4) rotate around the axis of cylindric lock (11) after the guardrail expandes, because the effect of spring force taut guardrail all the time, realize the locking of guardrail.

2. The quick folding movable guardrail device for the engineering truck according to claim 1, characterized in that: and the upright post upper positioning plate (7) is provided with a circular arc-shaped opening, and the circular arc-shaped opening is matched with the vertical pipe assembly (2).

3. The quick folding movable guardrail device for the engineering truck according to claim 1, characterized in that: rubber covered rollers (14) are mounted on the U-shaped bottom of the U-shaped bolt (9) and the handle (13).

4. The quick folding movable guardrail device for engineering vehicles according to claim 1, 2 or 3, characterized in that: hinges (15) are arranged between the guardrail upright posts (1).