CN210595161U - Safety protection system for aerial work equipment - Google Patents
Safety protection system for aerial work equipment Download PDFInfo
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- CN210595161U CN210595161U CN201920487730.7U CN201920487730U CN210595161U CN 210595161 U CN210595161 U CN 210595161U CN 201920487730 U CN201920487730 U CN 201920487730U CN 210595161 U CN210595161 U CN 210595161U
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- vertical telescopic
- supporting leg
- weighing sensor
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- oil cylinder
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- 238000005303 weighing Methods 0.000 claims abstract description 39
- 238000010276 construction Methods 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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Abstract
The utility model discloses a safety protection system for high-altitude operation equipment, which is characterized in that supporting legs are arranged on the high-altitude operation equipment, and each supporting leg comprises a horizontal telescopic supporting leg, a vertical fixed supporting leg, a vertical telescopic supporting leg, a pin shaft type weighing sensor and a vertical telescopic oil cylinder; the vertical fixing supporting leg is fixed at the tail end of the horizontal telescopic supporting leg, the vertical telescopic supporting leg is sleeved in the vertical fixing supporting leg, the pin shaft type weighing sensor is installed on the vertical fixing supporting leg, two ends of the vertical telescopic oil cylinder are respectively connected with the pin shaft type weighing sensor and the vertical telescopic supporting leg, the vertical telescopic oil cylinder drives the vertical telescopic supporting leg to stretch and retract, and the pin shaft type weighing sensor detects the magnitude of the reaction force of the vertical telescopic oil cylinder. The utility model discloses a high altitude construction's danger and security are judged to the reaction force that the pin shaft formula weighing sensor detected the landing leg and received, and security and stability are good.
Description
Technical Field
The utility model relates to the field of machinary, especially, relate to an aerial working equipment safety protection system.
Background
For the stability and the security of guaranteeing the product operation to satisfy different operation operating mode and environmental requirement, equipment such as high altitude construction car usually has the telescopic landing leg in sub vehicle frame chassis main part mechanical structure peripheral overall arrangement, and every landing leg contains horizontal telescopic leg and perpendicular telescopic leg usually, and the telescopic cylinder drive of landing leg inside can realize horizontal landing leg at horizontal direction concertina movement, and perpendicular landing leg is at perpendicular direction concertina movement. When the high-altitude operation vehicle works, the horizontal supporting legs are required to be unfolded completely and extend in place, the vertical supporting legs extend completely and reach in place, the whole vehicle guarantees the horizontal position state, and the landing detection switches on the vertical supporting legs detect that the vertical supporting legs reach in place, and then the upper platform arm frame can be operated.
The existing overhead working truck in the market has no detection of the state and the position of a horizontal supporting leg, only the landing of the supporting leg is detected, when the horizontal supporting leg is not extended out, and a vertical supporting leg is detected to land, the arm support can be extended out for operation, when the overturning moment of the whole truck extending out to a certain extent is larger than or equal to the stability moment of the whole truck, the stability of the whole truck is very poor, even if the vertical landing switch detects the virtual leg alarm of the supporting leg, the stability of the whole truck is also in a critical state, the truck is very easy to overturn, and the life safety of operators can be seriously influenced.
In order to solve the problems, a length sensor, an angle sensor and a weighing sensor are added on the arm support, and the extending length of the arm support at a specific angle is limited within a certain load range. The horizontal telescopic supporting legs are internally provided with extension and retraction in-place limits, and the vertical supporting legs are installed with landing detection, so that the problems of excessive limit, more fault points, poor reliability, high cost and the like are easily caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an aerial working equipment safety protection system improves aerial working equipment security and stability.
On one hand, the utility model provides a safety protection system for high-altitude operation equipment, which is characterized in that supporting legs are arranged on the high-altitude operation equipment, and each supporting leg comprises a horizontal telescopic supporting leg, a vertical fixed supporting leg, a vertical telescopic supporting leg, a pin shaft type weighing sensor and a vertical telescopic oil cylinder; the vertical fixing supporting leg is fixed at the tail end of the horizontal telescopic supporting leg, the vertical telescopic supporting leg is sleeved in the vertical fixing supporting leg, the pin shaft type weighing sensor is installed on the vertical fixing supporting leg, two ends of the vertical telescopic oil cylinder are respectively connected with the pin shaft type weighing sensor and the vertical telescopic supporting leg, the vertical telescopic oil cylinder drives the vertical telescopic supporting leg to stretch and retract, and the pin shaft type weighing sensor detects the magnitude of the reaction force of the vertical telescopic oil cylinder.
The device further comprises a controller, the pin shaft type weighing sensor is connected with the controller, the controller collects signals of the pin shaft type weighing sensor in real time, and the pin shaft type weighing sensor detects real-time magnitude of the reaction force of the vertical telescopic oil cylinder and sends the real-time magnitude of the reaction force to the controller for judgment and control.
Furthermore, a safety value is arranged in the controller, when the reaction force of the vertical telescopic oil cylinder detected by the pin shaft type weighing sensor is smaller than or equal to the safety value, the controller judges that the vertical telescopic oil cylinder is dangerous, and stops the current operation or sends out an alarm signal; when the counter force of the vertical telescopic oil cylinder detected by the pin shaft type weighing sensor is greater than a safety value, the controller judges that the vertical telescopic oil cylinder is safe.
Furthermore, the vertical telescopic oil cylinder comprises a piston rod and a cylinder barrel, the cylinder barrel is hinged with the pin shaft type weighing sensor, and the piston rod is hinged with the vertical telescopic oil cylinder through a pin shaft.
Furthermore, four support legs are arranged on the high-altitude operation equipment, when the counter force of the vertical telescopic oil cylinder detected by the pin shaft type weighing sensor on one support leg is less than or equal to a safety value, the controller judges that the counter force is dangerous, and stops the current operation or sends an alarm signal; when the counter force of the vertical telescopic oil cylinder detected by the pin shaft type weighing sensor on one of the supporting legs is larger than a safety value, the controller judges that the supporting legs are safe.
The utility model discloses a high altitude construction equipment safety protection system lies in for prior art beneficial effect:
1. the high-altitude operation equipment can operate at any position and has good safety and stability. The supporting legs do not need related telescopic in-place detection and grounding detection switches.
2. The arm support of the high-altitude operation equipment does not need to be internally provided with components such as an angle sensor, a length sensor, a weighing sensor and the like to limit the state of the arm support at a certain position and the extending length of a load. The control protection of the overhead working truck is greatly simplified.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a support leg of the present invention;
FIG. 2 is a schematic view of the structure of the vertically telescopic leg of the present invention;
fig. 3 is a schematic structural diagram of the pin shaft type weighing sensor of the present invention.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, specific details are set forth in order to provide a thorough understanding of the present invention. The invention can be implemented in a number of other ways than those described herein, and those skilled in the art will be able to make similar generalizations without departing from the spirit of the invention. The invention is therefore not limited to the specific embodiments disclosed below.
As shown in fig. 1, 2 and 3, the safety protection system for high-altitude operation equipment of the present invention preferably has four legs installed on the high-altitude operation equipment, and each leg includes a rear horizontal telescopic leg 1, a vertical fixed leg 2, a vertical telescopic leg 3, a pin shaft type weighing sensor 4, a vertical telescopic cylinder 5 and a controller 6. The vertical fixed supporting leg 2 is welded on the horizontal telescopic supporting leg 1, the lower end of the vertical telescopic supporting leg 3 is connected with a piston cylinder rod of a vertical telescopic oil cylinder 5 through a pin shaft (as shown in figure 2), a cylinder barrel of the vertical telescopic oil cylinder 5 is connected with the upper end of the vertical fixed supporting leg 2 through a pin shaft type weighing sensor 4 (as shown in figure 2), and an outlet wire at the connected end part of the pin shaft type weighing sensor 4 is connected with a controller 6 (as shown in figure 3).
The vertical telescopic oil cylinder 5 can drive the vertical telescopic supporting leg 3 to telescopically move through telescopic motion. When the overhead working truck works, the supporting legs must be supported to support the weight of the whole truck. The vertical telescopic supporting legs 3 extend out and touch the ground to support the weight of the whole vehicle, the weight of the whole vehicle supported by the vertical telescopic supporting legs 3 and the vertical telescopic oil cylinders 5 is transmitted to the pin shaft type weighing sensors 4, and the pin shaft type weighing sensors 4 detect the real-time magnitude of the reaction force F of the vertical telescopic oil cylinders 5 and transmit the real-time magnitude to the controller 6 for judgment and control. A safety value is set in the controller 6. When the counter force F of the vertical telescopic oil cylinder 5 detected by the pin shaft type weighing sensor 4 in one of the supporting legs is smaller than or equal to a safety value, the controller 6 judges that the counter force is dangerous, stops the related current action or sends an alarm signal. When the counter force F of the vertical telescopic oil cylinder 5 detected by the pin shaft type weighing sensor 4 is larger than a safety value, the controller 6 judges that the operation is safe and allows the relevant current operation. The related current operations generally refer to boom extension and retraction operations, work platform operations and the like.
The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the core concepts of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (5)
1. A safety protection system for high-altitude operation equipment is characterized in that supporting legs are mounted on the high-altitude operation equipment and comprise horizontal telescopic supporting legs (1), vertical fixed supporting legs (2), vertical telescopic supporting legs (3), pin shaft type weighing sensors (4) and vertical telescopic oil cylinders (5); the vertical fixing supporting leg (2) is fixed at the tail end of the horizontal telescopic supporting leg (1), the vertical telescopic supporting leg (3) is sleeved in the vertical fixing supporting leg (2), the pin shaft type weighing sensor (4) is installed on the vertical fixing supporting leg (2), two ends of the vertical telescopic oil cylinder (5) are respectively connected with the pin shaft type weighing sensor (4) and the vertical telescopic supporting leg (3), the vertical telescopic oil cylinder (5) drives the vertical telescopic supporting leg (3) to stretch, and the pin shaft type weighing sensor (4) detects the magnitude of a reaction force of the vertical telescopic oil cylinder (5).
2. The safety protection system for the aerial work equipment according to claim 1, which comprises a controller (6), wherein the pin-shaft type weighing sensor (4) is connected with the controller, the controller (6) collects signals of the pin-shaft type weighing sensor (4) in real time, and the pin-shaft type weighing sensor (4) detects real-time magnitude of reaction force of the vertical telescopic oil cylinder (5) and sends the real-time magnitude of the reaction force to the controller (6) for judgment and control.
3. The safety protection system for the aerial work equipment according to claim 2, wherein a safety value is arranged in the controller (6), and when the reaction force of the vertical telescopic oil cylinder (5) detected by the pin-type weighing sensor (4) is less than or equal to the safety value, the controller (6) judges that the system is dangerous and stops the current operation or sends an alarm signal; when the counter force of the vertical telescopic oil cylinder (5) detected by the pin shaft type weighing sensor (4) is larger than a safety value, the controller (6) judges that the safety is ensured.
4. The safety protection system for aerial work equipment according to claim 1, wherein the vertical telescopic oil cylinder (5) comprises a piston rod and a cylinder barrel, the cylinder barrel is hinged with the pin shaft type weighing sensor (4), and the piston rod is hinged with the vertical telescopic oil cylinder (5) through a pin shaft.
5. The safety protection system for the aerial work equipment according to any one of claims 1 to 4, characterized in that four legs are installed on the aerial work equipment, when the counterforce detected by the pin-type weighing sensor (4) on one leg of the four legs on the vertical telescopic oil cylinder (5) is less than or equal to a safety value, the controller (6) judges that the safety is dangerous, stops the current operation or sends an alarm signal; when the counter force of the vertical telescopic oil cylinder (5) detected by the pin shaft type weighing sensor (4) on one of the supporting legs is larger than a safety value, the controller (6) judges that the safety is ensured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920487730.7U CN210595161U (en) | 2019-04-11 | 2019-04-11 | Safety protection system for aerial work equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920487730.7U CN210595161U (en) | 2019-04-11 | 2019-04-11 | Safety protection system for aerial work equipment |
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| Publication Number | Publication Date |
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| CN210595161U true CN210595161U (en) | 2020-05-22 |
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| CN201920487730.7U Active CN210595161U (en) | 2019-04-11 | 2019-04-11 | Safety protection system for aerial work equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109970011A (en) * | 2019-04-11 | 2019-07-05 | 湖南星邦重工有限公司 | A kind of aerial lift device safety system |
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2019
- 2019-04-11 CN CN201920487730.7U patent/CN210595161U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109970011A (en) * | 2019-04-11 | 2019-07-05 | 湖南星邦重工有限公司 | A kind of aerial lift device safety system |
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