阅读说明：本技术 一种防挤压装置及高空作业平台 (Anti-extrusion device and aerial work platform ) 是由 许树根 于 2019-09-16 设计创作，主要内容包括：本发明涉及防挤压系统技术领域,具体为一种防挤压装置及高空作业平台,包括用于安装在高空作业平台的防护栏上的操作平台防护架,所述操作平台防护架上活动连接有至少一根供人体倚靠的检测杆,所述检测杆上安装有用于触发报警系统报警的位置变化感应装置,安全性更高。(The invention relates to the technical field of an anti-extrusion system, in particular to an anti-extrusion device and an aerial work platform, which comprise an operation platform protection frame arranged on a guard rail of the aerial work platform, wherein the operation platform protection frame is movably connected with at least one detection rod for leaning of a human body, and the detection rod is provided with a position change induction device for triggering an alarm system to give an alarm, so that the safety is higher.)

1. An anti-extrusion device, its characterized in that: the device comprises an operation platform protection frame (1) used for being installed on a protective guard of an aerial work platform, wherein at least one detection rod (2) for leaning of a human body is movably connected to the operation platform protection frame (1), and a position change induction device (3) used for triggering an alarm system to give an alarm is installed on the detection rod (2).

2. An anti-extrusion device as defined in claim 1, wherein: the detection rod (2) is rotatably connected to the operating platform protection frame (1).

3. An anti-extrusion device as defined in claim 2, wherein: and a hinge seat (4) for hinging the detection rod (2) is fixed on the operating platform protection frame (1).

4. An anti-extrusion device as defined in claim 3, wherein: and a limiting device (5) for limiting the detection rod (2) is arranged on the hinged seat (4).

5. An anti-extrusion device as defined in claim 4, wherein: the limiting device (5) comprises a front limiting block (51) used for limiting the swing of the detection rod (2) towards the direction of the operating platform and a rear limiting plate (52) used for limiting the swing of the detection rod (2) towards the direction of an operator, wherein a free moving interval (512) for enabling the detection rod (2) to swing is arranged between the front limiting block (51) and the rear limiting plate (52).

6. An anti-extrusion device as defined in claim 5, wherein: the rear limiting plate (52) is part of the hinge seat (4).

7. An anti-extrusion device as defined in claim 4, wherein: an elastic reset device (6) for resetting the detection rod (2) is arranged on the hinged seat (4).

8. An anti-extrusion device as defined in claim 1, wherein: the anti-extrusion device is provided with two opposite detection rods (2) at the left and right, and position change induction devices (3) are arranged at the opposite end parts.

9. An anti-extrusion device as defined in claim 8, wherein: the position change induction device (3) on one detection rod (2) is a magnetic induction switch, and the position change induction device (3) on the other detection rod (2) is a magnetic block.

10. an aerial work platform having a base (7) for an operator to stand on and a guard rail (8) mounted on the base (7), characterized in that: an anti-squeezing device as claimed in any one of claims 1 to 9 is mounted on the guard rail (8).

Technical Field

The invention relates to the technical field of an anti-extrusion system, in particular to an anti-extrusion device and an aerial work platform.

Background

The aerial work platform is used more and more frequently in the society nowadays, and its security receives people's attention more yet, and especially, when circumstances such as barrier appears above the platform or the rear, probably operating personnel does not discover and the machine continues to rise when taking place, then the staff probably is extruded by the barrier, more probably because of operating personnel can't in time loosen operating handle and make the machine continue to rise, finally causes more serious accident etc. exist among the prior art and prevent this kind of extrusion safety device.

The working platform anti-extrusion system and the aerial work platform disclosed in the Chinese patent with the publication number of CN208249834U are characterized in that the working platform anti-extrusion system is arranged on the working platform, the working platform comprises an operating platform, the operating platform comprises an anti-extrusion pull rope which is positioned at the rear side of the operating platform and two ends of the anti-extrusion pull rope are connected with the working platform, at least one end of the anti-extrusion pull rope is connected with a pull rope switch arranged on the working platform, the pull rope switch is connected with an upper controller, and the upper controller is provided with a platform action stopping module. Has the advantages that: the anti-extrusion pull rope connected with the pull rope switch is adopted to detect the extrusion condition, the detection mode is contact type, the false triggering is not easy, the structure is easy to hurt the human body, and the pull rope switch and the pull rope are easy to damage and have poor restorability;

also, as disclosed in chinese patent publication No. CN107257773A, a working platform for preventing continuous involuntary operation includes: a floor structure having a width dimension and a depth dimension; and a safety barrier coupled with the floor structure, a control panel area being cooperable with the safety barrier and including a sensor support bar having a top rail extending along the width dimension and side bars extending substantially perpendicularly from the top rail, each of the side bars including: an upper portion extending inwardly from the top rail along the depth dimension to a curved portion, and a lower portion extending outwardly from the curved portion along the depth dimension to the safety fence, a platform switch configured to trip when a predetermined force is applied being attached to a sensor support bar by a switch bar, the switch bar being held by a shear element, the entire structure being a fixed structure, the rigidity being greater, especially in the case of a large pressing force, although alarming, the impact on a person is greater, and the position of the person is more restricted, the danger avoidance effect being insufficient.

Disclosure of Invention

the invention aims to provide an anti-extrusion device with higher safety.

The technical purpose of the invention is realized by the following technical scheme: the utility model provides an anti-extrusion device, is including being used for installing the operation platform protection frame on aerial working platform's rail guard, swing joint has at least one measuring bar that supplies the human body to lean on the operation platform protection frame, install the position change induction system who is used for triggering alarm system to report to the police on the measuring bar.

Among the above-mentioned scheme, when operating personnel is extruded or will be extruded, operating personnel just can push away the measuring pole through leaning on of health and make the change that the measuring pole takes place the position inform alarm system operating personnel be in dangerous situation and close the continuous operation of workstation, the positional information change of measuring pole detects the back and feeds back to alarm system through position change induction system, just can realize, like this, the human body not only can have certain danger of keeping away and removes the space, can also effectively report to the police simultaneously, the security improves.

Preferably, the detection rod is rotatably connected to the operation platform protection frame.

Preferably, a hinge seat for hinging the detection rod is fixed on the operation platform protection frame.

Preferably, the hinge base is provided with a limiting device for limiting the position of the detection rod.

Preferably, the limiting device comprises a front limiting block for limiting the swing of the detection rod to the direction of the operating platform and a rear limiting plate for limiting the swing of the detection rod to the direction of an operator, and a free movement interval for the swing of the detection rod is arranged between the front limiting block and the rear limiting plate.

Preferably, the rear limiting plate is a part of the hinge seat.

Preferably, the hinge base is provided with an elastic reset device for resetting the detection rod.

Preferably, the detection lever abuts against the rear stopper plate.

Preferably, the anti-squeezing device includes two detection levers facing each other in the left-right direction, and a position change sensing device is provided at each of the facing ends.

preferably, the position change sensing device on one of the detection rods is a magnetic induction switch, and the position change sensing device on the other detection rod is a magnetic block.

Preferably, at least a part of the surface of the detection rod is an arc-shaped part which can be contacted with an operator.

Preferably, the outer part of the detection rod is wrapped with a buffer layer.

Another object of the present invention is to provide an aerial work platform with improved safety.

The technical purpose of the invention is realized by the following technical scheme: an aerial work platform is provided with a base for an operator to stand on and a guard rail arranged on the base, wherein the guard rail is provided with the anti-extrusion device.

The invention has the beneficial effects that: the utility model provides a structural security is higher, and the exactness that the warning was triggered is higher, and is better to human body and equipment self at the protectiveness of preventing that the extrusion is kept away dangerous in-process, and the stability and the recovery nature of structure are better, and long-term use is difficult to damage.

Drawings

Fig. 1 is a partial perspective view of an anti-extrusion device mounted on an aerial work platform according to embodiment 1 of the present invention;

FIG. 2 is an enlarged view taken at I in FIG. 1;

fig. 3 is a partial perspective view of a region where one of the detection rods 2 is located, as seen from a front side view angle in embodiment 1 of the present invention.

Fig. 4 is a schematic perspective view of embodiment 4 of the present invention.

In the figure: 1. the operation platform comprises an operation platform protection frame, 2, a detection rod, 3, a position change sensing device, 4, a hinged seat, 5, a limiting device, 51, a front side limiting block, 52, a rear side limiting plate, 512, a free movement interval, 6, an elastic resetting device, 20, a buffer layer, a1, an operation platform, 10, a protection frame, 11, a protection rod, 40, a hinged shaft, 400, a semi-enclosed guide interval, 41, a side plate, 42, an upper plate, 43, a lower plate, 4a, an upper rotating plate, 4b, a lower rotating plate, 4c, a side rotating plate, 60, a torsion spring, 7, a base, 8 and a protective guard.

Detailed Description

The following specific examples are given by way of illustration only and not by way of limitation, and it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made in the examples without inventive faculty, and yet still be protected by the scope of the claims.