CN215756030U

CN215756030U - Limiting alarm device for support oil cylinder of automobile crane

Info

Publication number: CN215756030U
Application number: CN202121401064.4U
Authority: CN
Inventors: 徐春生; 孙广西
Original assignee: Jiangsu Tianyi Heavy Industry Technology Co ltd
Current assignee: Jiangsu Tianyi Heavy Industry Technology Co ltd
Priority date: 2021-06-23
Filing date: 2021-06-23
Publication date: 2022-02-08
Anticipated expiration: 2031-06-23

Abstract

The utility model discloses a limiting alarm device for a support oil cylinder of an automobile crane, which comprises a limiting structure and a limiting system, wherein the limiting structure comprises a support oil cylinder, a flange arranged on the cylinder wall of the support oil cylinder, a leveling support arranged below the flange, a foot plate arranged below the leveling support and a trigger switch arranged on the leveling support.

Description

Limiting alarm device for support oil cylinder of automobile crane

Technical Field

The utility model relates to the field of automobile crane safety, in particular to a limiting alarm device for a support leg oil cylinder of an automobile crane.

Background

When the existing automobile crane retracts the supporting leg oil cylinder, people can only observe whether the supporting leg oil cylinder is retracted, and loss and accidents which are difficult to repair are possibly caused to vehicles once the supporting leg oil cylinder is forgotten. Further, a device for warning when the operator forgets or does not finish the cylinder is needed.

SUMMERY OF THE UTILITY MODEL

Aiming at the technical problem, the utility model provides a limiting alarm device for a support leg oil cylinder of an automobile crane,

the method comprises the following steps:

the limiting structure comprises a supporting leg oil cylinder, a flange arranged on the wall of the supporting leg oil cylinder, a leveling support arranged below the flange, a foot plate arranged below the leveling support and a trigger switch arranged on the leveling support, the limiting system comprises a power supply, an integrated circuit module, a pneumatic switch device, a trigger device and a signal module, the integrated circuit module is powered from the power supply to the signal module and the pneumatic switch device module, and the trigger switch controls the trigger device.

Preferably, the leveling support comprises an upper support, a lower support arranged below the upper support and a bolt piece for connecting the upper support and the lower support, the upper support is provided with a bolt hole, the lower support is provided with a waist-shaped hole, and the waist-shaped hole is symmetrical to the bolt hole.

Preferably, the pneumatic switch device comprises a control air passage, a pneumatic switch and a power takeoff connected with the control air passage.

Preferably, the integrated circuit module is connected with a buzzer and a warning light.

Has the advantages that:

1. the utility model can play a role in warning when the operator forgets or does not finish the oil cylinder, thereby effectively improving the operation safety.

Drawings

The utility model will be further described with reference to the accompanying drawings.

FIG. 1 is a schematic view of the overall mechanism of an embodiment of the present invention;

FIG. 2 is an enlarged view of the point A in FIG. 1;

FIG. 3 is a schematic view of a spacing system of the present invention;

fig. 4 is a schematic diagram of the limiting alarm principle of the utility model.

The figures in the drawings represent:

1. the device comprises a support oil cylinder 2, a contact switch closure 3, an upper support 4, a flange 5, a kidney-shaped hole 6, a lower support 7, a trigger switch 8, an integrated circuit module 9, a foot plate 10, a power supply 11, a signal module 12, a pneumatic switch device 13, a trigger device 14, a buzzer 15, a warning lamp 16, a power take-off switch opening 17, a power take-off switch closing 18 and a contact switch disconnection.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "front", "rear", "left", "right", "upper", "lower", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

As shown in fig. 1 and 2, the present invention includes a limiting structure and a limiting system, wherein the limiting structure includes a leg cylinder, a flange disposed on a cylinder wall of the leg cylinder, a leveling bracket mounted below the flange, a foot plate disposed below the leveling bracket, and a trigger switch disposed on the leveling bracket, the limiting system includes a power supply, an integrated circuit module, a pneumatic switch device, a trigger device, and a signal module, the integrated circuit module supplies power to the signal module and the pneumatic switch device module from the power supply, and the trigger switch controls the trigger device.

The utility model discloses a bolt spare of lower carriage, including the upper bracket, locate the support of making level the lower carriage of upper bracket below and connect the upper bracket with the bolt spare of lower carriage, be equipped with the bolt hole on the upper bracket, be equipped with waist shape hole on the lower carriage, waist shape hole with the bolt hole is symmetrical, so the air pressure switch device include control gas circuit, air pressure switch and with the power takeoff that the control gas circuit is connected, the integrated circuit module is connected with bee calling organ and warning light.

The air pressure switch device is connected to a control air passage of the hydraulic power takeoff switch, the power takeoff switch is opened to ventilate, so that the air pressure switch device is broken, and the air pressure switch device is opened when the power takeoff switch is closed.

As shown in fig. 3 and 4, when the leg cylinder is retracted, the top end of the foot plate is in contact with the leveling bracket, so that the plane of the foot plate is perpendicular to the moving direction of the leg cylinder, the trigger switch is further enabled to be in contact with the leveling foot plate, the trigger switch forms an open circuit, and if the leg cylinder is not retracted, the trigger switch forms a closed circuit. When the power takeoff switch is turned on, the air pressure switch device is in an off state under the action of compressed air. The supporting leg oil cylinder cannot be retracted to form a loop, and the warning lamp and the buzzer do not give an alarm. Therefore, the operator is not affected in the construction process. When the driver finishes construction or changes places, the hydraulic power takeoff switch is closed, and the air pressure switch forms a passage under the action of the spring. Therefore, when the supporting leg oil cylinder is not retracted completely, the switch is triggered to be switched on, and the warning lamp and the buzzer in the driving process give an alarm and flash to prompt that the supporting leg is not retracted or retracted completely. When the oil cylinder is completely withdrawn, the trigger switch forms an open circuit, and the warning lamp and the buzzer do not give an alarm to prove that the oil cylinder is completely withdrawn and closed. Therefore, a driver can timely detect whether the support leg oil cylinder is in a retracting state when driving to a transition. The unnecessary loss and accidents caused by the fact that the oil cylinder scratches the ground when not retracted are avoided.

Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model.

Claims

1. The utility model provides a spacing alarm device of mobile crane landing leg hydro-cylinder which characterized in that: the limiting structure comprises a supporting leg oil cylinder, a flange arranged on the wall of the supporting leg oil cylinder, a leveling support arranged below the flange, a foot plate arranged below the leveling support and a trigger switch arranged on the leveling support, the limiting system comprises a power supply, an integrated circuit module, a pneumatic switch device, a trigger device and a signal module, the integrated circuit module is powered from the power supply to the signal module and the pneumatic switch device module, and the trigger switch controls the trigger device.

2. The limit alarm device for the support oil cylinder of the automobile crane as claimed in claim 1, wherein: the leveling support comprises an upper support, a lower support and a bolt piece, wherein the lower support is arranged below the upper support, the bolt piece is connected with the upper support and the lower support, a bolt hole is formed in the upper support, a waist-shaped hole is formed in the lower support, and the waist-shaped hole is symmetrical to the bolt hole.

3. The limit alarm device for the support oil cylinder of the automobile crane as claimed in claim 2, wherein: the air pressure switch device comprises a control air passage, an air pressure switch and a power takeoff connected with the control air passage.

4. The limit alarm device for the support oil cylinder of the automobile crane as claimed in claim 3, wherein: the integrated circuit module is connected with a buzzer and a warning lamp.