Outrigger locking device and concrete pump truck

An outrigger locking and locking technology, applied in the direction of the unloading device, etc., can solve the problems of increasing the friction between the lock tongue and the inner wall of the cylindrical shell, the locking device is laborious to use, and inconvenient to process, and achieves flexible and convenient layout. Safe and reliable locking, space-saving effect

Active Publication Date: 2012-05-30
SANY AUTOMOBILE MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This leg locking device has the following defects: first, the L-shaped chute is arranged on the side wall of the round pipe, and a branch of the L-shaped chute is centrally arranged on the side wall parallel to the axis of the round pipe, which This structure is not easy to process
Since the line of action of the applied pulling force does not coincide with the axis of the cylindrical shell, but parallel lines with a certain distance, a moment will be generated so that the axis of the deadbolt is no longer parallel to the axis of the cylindrical shell, thus Increased friction between the lock tongue and the inner wall of the cylindrical shell when the lock tongue slides, resulting in the lock tongue being stuck
Therefore, the locking device is laborious to use and inconvenient to operate

Method used

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  • Outrigger locking device and concrete pump truck
  • Outrigger locking device and concrete pump truck
  • Outrigger locking device and concrete pump truck

Examples

Experimental program
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Effect test

Embodiment Construction

[0034] Figure 1 to Figure 10 It shows an embodiment of an outrigger locking device of the present invention, including a mounting base 1, a lock core 2 and an operating mechanism 4, the lock core 2 includes a locked state and an unlocked state, the lock core 2 is hinged to the mounting base 1, and the lock The core 2 can deflect around the hinge shaft. The operating mechanism 4 is used to drive the lock core 2 to swing around the hinge shaft and switch between the locked state and the unlocked state. A lock core return spring 3 is provided between the mounting base 1 and the lock core 2. Through the lock core return spring 3, the lock core 2 is always subjected to the return driving force that drives the lock tongue 21 to protrude from the mounting seat 1, so as to keep the lock core 2 reset between the locked state and the unlocked state. This deflection structure greatly reduces the requirement for installation space, saves space, and makes the arrangement of the outrigger ...

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PUM

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Abstract

The invention discloses an outrigger locking device. The device comprises a fitting seat, a lock cylinder and a control mechanism; the lock cylinder comprises a locking state and an unlocking state and is hinged with the fitting seat; and the control mechanism is used for driving the lock cylinder to swing around a hinging axle and switch between the locking state and the unlocking state. The outrigger locking device has the characteristics of rotary offset lock cylinder structure, low requirement on installation space and safe, reliable, easy and convenient operation. The invention also discloses a concrete pump truck which comprises an outrigger arranged on a bodywork chassis, wherein the outrigger is provided with the outrigger locking device; and a baffle plate which is matched with the outrigger locking device is arranged on a walking board of the bodywork chassis.

Description

technical field [0001] The invention relates to an outrigger locking device for engineering machinery and the engineering machinery, in particular to an outrigger locking device for concrete pump trucks and the concrete pump truck. Background technique [0002] Concrete pump truck is an efficient concrete conveying engineering machinery that integrates concrete pumping mechanism, hydraulic folding boom and support mechanism on the chassis of the car, integrating driving, pumping and material distribution. In order to ensure that the outriggers of the concrete pump truck will not be thrown away due to sharp turns during its driving, each outrigger must be equipped with a locking device to lock the outriggers in the retracted position. The outrigger locking device requires a lock It is reliable, simple in structure and easy to operate. [0003] At present, most of the existing locking devices for outriggers of concrete pump trucks are composed of pin shafts, pin seats, thin s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B28C7/16
Inventor 邓彪刘志斌邱翠容周俊
Owner SANY AUTOMOBILE MFG CO LTD
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