Automatic locking device mounted on flat plate type wrecker

Abstract

The utility model discloses an automatic locking device on a flat plate type wrecker, which comprises a girder frame and a flat plate upper assembly arranged on the girder frame, and a locking device for locking the flat plate upper assembly and a driving device for driving the locking device to act are arranged between the girder frame and the flat plate upper assembly. And the driving device is electrically connected with a control switch of the power takeoff. Due to the fact that the automatic locking device arranged on the flat plate is additionally arranged on the flat plate wrecker, a control signal of the device is taken from the control switch of the power takeoff arranged on the flat plate wrecker, and the device is arranged to be in linkage with the power takeoff, the flat plate upper assembly is locked when the flat plate wrecker is transported in a back-loading mode, and the flat plate upper assembly is prevented from sliding. And when the obstacle is cleared in the accident scene, the locking of the flat plate upper assembly is released, so that the flat plate upper assembly can freely stretch, retract and incline.

Description

Technical Field

[0001] The utility model relates to the technical field of flat wrecking trucks, in particular to a device for locking the upper mounting of a flat wrecking truck. Background Art

[0002] When the existing flat wrecking truck is in the process of carrying and transporting, the fixing of the upper mounting on the girder frame is completely positioned and fixed by the pressure maintaining of each action oil cylinder. However, in actual process, sometimes the hydraulic system will have problems such as leakage and non-pressure maintaining. Once this problem occurs, it is very easy to cause the upper mounting on the flat to slide off the girder frame to the ground, resulting in secondary accidents. Therefore, it is necessary to develop a locking device for locking the upper mounting on the flat of a flat wrecking truck during carrying and transporting. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a device for a flat wrecking truck that can automatically lock the upper mounting on the flat.

[0004] The technical solution adopted to solve the above technical problem: An automatic locking device for the upper mounting of a flat wrecking truck, including a girder frame and an upper mounting on the flat installed on the girder frame, characterized in that: a locking device for locking the upper mounting on the flat and a driving device for driving the locking device to act are installed between the girder frame and the upper mounting on the flat, and the driving device is electrically connected to the control switch of the power take-off.

[0005] On the above basis, the locking device includes a hook hinged to the girder frame, and the driving device includes a cylinder or an oil cylinder for driving the hook to swing.

[0006] On the above basis, an emergency manual control handle for driving the locking device to act is further installed on the girder frame.

[0007] The beneficial effects brought by adopting the utility model: Since the flat wrecking truck of the utility model is equipped with an automatic locking device for the upper mounting on the flat, the control signal of this device is taken from the control switch of the upper mounting power take-off and is set to be linked with the power take-off, so that the flat wrecking truck locks the upper mounting on the flat during carrying and transporting to prevent the upper mounting on the flat from sliding; while unlocking the upper mounting on the flat during wrecking at the accident site, so that the upper mounting on the flat can freely stretch and tilt. Description of the Drawings

[0008] Figure 1 Structural schematic diagram of the automatic locking device for the upper mounting of the flat wrecking truck of the utility model. Detailed Embodiment

[0009] As Figure 1As shown in the figure, an automatic locking device for the upper mounting of a flat type obstacle removal vehicle includes a girder frame 1 and a flat upper mounting 2 installed on the girder frame 1. A locking device 3 for locking the flat upper mounting 2 and a driving device 4 for driving the locking device 3 to act are installed between the girder frame 1 and the flat upper mounting 2. The driving device 4 is electrically connected to the control switch 5 of the power take-off.

[0010] The power take-off is a device that outputs the power of the engine of the obstacle removal vehicle to the upper mounting as a power source. When the power take-off is engaged, the flat upper mounting can obtain a power source, so that each action mechanism of the upper mounting can be controlled. When the obstacle removal vehicle is driving, the power take-off usually needs to be disengaged, that is, the power output from the engine to the upper mounting is cut off. The control switch 5 installed in the cab controls the engagement and disengagement of the power take-off.

[0011] When the power take-off control switch 5 is operated to engage, a linkage signal will be sent to the driving device 4, and the driving device 4 drives the locking device 3 to unlock the flat upper mounting 2, restoring the safe and free telescopic and tilting actions of the flat upper mounting 2.

[0012] When the power take-off control switch 5 is operated to disengage, a linkage signal will be sent to the driving device 4, and the driving device 4 drives the locking device 3 to lock the flat upper mounting 2, locking the flat upper mounting 2 to the girder frame 1 to prevent the flat upper mounting 2 from sliding.

[0013] It can be known that the locking device 3 is a conventional electric control locking mechanism. In this embodiment, the locking device 3 includes a hook 31 hinged to the girder frame 1 and a hanging pin 32 fixed to the flat upper mounting 2 that can be hooked by the hook 31. Specifically, a set of locking devices 3 can be arranged on both sides of the front end of the flat upper mounting 2 correspondingly, and the hooks 31 among them are synchronously linked by a linkage shaft, so as to provide a more balanced and reliable locking force. The driving device 4 includes a cylinder or an oil cylinder for driving the hook 31 to swing. The power take-off control switch 5 controls the telescopic action of the cylinder or the oil cylinder, and the telescopic of the cylinder or the oil cylinder can drive the hook 31 to swing back and forth, performing the hooking and separating actions on the hanging pin 32, so as to realize the locking and unlocking of the flat upper mounting 2.

[0014] In this embodiment, an emergency manual control handle 6 for driving the locking device 3 to act is also installed on the girder frame 1. In this way, when the automatic control system of the locking device fails to act abnormally, the locking device 3 can be driven to perform the locking and unlocking actions through the conventional emergency manual control handle 6.

Claims

1. An automatic locking device for a flatbed tow truck, comprising a beam frame and a flatbed mounted on the beam frame, characterized in that: A locking device for locking the flat panel upper mount and a driving device for driving the locking device are installed between the beam frame and the flat panel upper mount, and the driving device is electrically connected to the control switch of the power take-off.

2. The automatic locking device for a flatbed tow truck according to claim 1, characterized in that: The locking device comprises a hook hinged to the beam frame, and the driving device comprises a cylinder or an oil cylinder for driving the hook to swing.

3. The automatic locking device mounted on a flatbed tow truck according to claim 1 or 2, characterized in that: The beam frame is also equipped with an emergency manual control handle for driving the locking device.

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