阅读说明：本技术 一种应用限位开关的支腿 (Landing leg using limit switch ) 是由 邹连波 宋方畅 吴元柱 于 2018-06-15 设计创作，主要内容包括：本发明提出了一种应用限位开关的支腿,包括支腿本体、与支腿连接的油缸顶杆、油缸筒、油缸端板、与安装板固连的底盘连接座以及限位组件,支腿本体下部设有接地盘,油缸筒下部一体设有油缸端板,油缸端板边缘对称设有若干通孔,与底盘连接座通过螺栓固定连接,若干底盘连接座对称固定在高空作业平台设备的四角,限位组件包括两限位开关、一接触轴和一安装板,两限位开关上、下位设置在安装板内侧,安装板下部通过螺栓与油缸端板固定；该应用限位开关的支腿将原有只能手工加压的支腿应用上了油缸助力,并且由行程开关限定了移动行程,在实际不平整的路面上最大限度实现支撑功能,液压控制可以轻松实现自动调整支腿的高度,即安全又高效。(The invention provides a landing leg applying a limit switch, which comprises a landing leg body, an oil cylinder ejector rod connected with the landing leg, an oil cylinder barrel, an oil cylinder end plate, a chassis connecting seat fixedly connected with a mounting plate and a limit component, wherein a grounding disc is arranged at the lower part of the landing leg body; the landing leg using the limit switch applies the oil cylinder power assisting to the original landing leg which can only be manually pressurized, the travel switch limits the moving stroke, the support function is realized to the maximum extent on the actual uneven road surface, the hydraulic control can easily realize the automatic height adjustment of the landing leg, and the landing leg is safe and efficient.)

1. The utility model provides an use limit switch's landing leg which characterized in that: the support leg comprises a support leg body, an oil cylinder ejector rod connected with the support leg, an oil cylinder barrel, an oil cylinder end plate, a chassis connecting seat fixedly connected with a mounting plate and a limiting assembly;

the lower part of the supporting leg body is provided with a grounding disc which is fixedly connected with the oil cylinder ejector rod;

an oil cylinder end plate is integrally arranged at the lower part of the oil cylinder barrel, a plurality of through holes are symmetrically formed in the edge of the oil cylinder end plate and fixedly connected with the chassis connecting seats through bolts, and the chassis connecting seats are symmetrically fixed at four corners of the aerial work platform equipment;

the limiting assembly comprises two limiting switches, a contact shaft and a mounting plate, the upper position and the lower position of the two limiting switches are arranged on the inner side of the mounting plate and comprise an upper limiting switch and a lower limiting switch, the upper limiting switch and the lower limiting switch are used for limiting the stroke of the contact shaft, and the lower part of the mounting plate is fixed with the oil cylinder end plate through bolts.

2. The support leg using the limit switch as claimed in claim 1, wherein: the chassis connecting seat is integrally provided with a concave connecting plate which is in one-to-one correspondence with through holes arranged in the oil cylinder end plate, the diameters of the through holes are the same, and reinforcing ribs are arranged between the connecting plate and the chassis connecting seat.

3. The support leg using the limit switch as claimed in claim 1, wherein: the contact shaft is a long rod, the lower part of the contact shaft is vertically fixed on a disc, and the disc is fixed with the oil cylinder ejector rod.

4. The support leg using the limit switch as claimed in claim 3, wherein: a clamp spring is arranged between the contact shaft and the disc, and a pressure spring is arranged on the contact shaft sleeve.

5. The support leg using the limit switch as claimed in claim 1, wherein: the mounting panel with the hydro-cylinder end plate passes through bolted connection department and is equipped with the elastic gasket.

Technical Field

The invention relates to the technical field of aloft work and transportation, in particular to a supporting leg of an aloft work platform application limit switch.

Background

When the aerial work platform is used, when the road surface is uneven or the aerial work platform is on a slope, in order to improve the anti-overturning capacity of the aerial work platform, the supporting legs are required to be used, the elongation of the supporting legs is adjusted to the maximum extent, so that the unbalance brought to equipment by different height differences is met, and meanwhile, the aerial work platform has enough supporting force; the road surface structure provides powerful structural support for overcoming complicated and changeable road surface environment, and is convenient for construction operation.

Disclosure of Invention

The invention aims to: the landing leg applied with the limit switch is provided, and the landing leg stroke and the stretching speed can be accurately and remotely controlled.

In order to solve the technical problem, the invention provides a landing leg applying a limit switch, which comprises a landing leg body, an oil cylinder ejector rod, an oil cylinder barrel, an oil cylinder end plate, a chassis connecting seat and a limit assembly, wherein the oil cylinder ejector rod, the oil cylinder barrel, the oil cylinder end plate, the chassis connecting seat and the limit assembly are connected with the landing leg.

The lower part of the supporting leg body is provided with a grounding disc which is fixedly connected with the oil cylinder ejector rod;

an oil cylinder end plate is integrally arranged at the lower part of the oil cylinder barrel, a plurality of through holes are symmetrically formed in the edge of the oil cylinder end plate and fixedly connected with the chassis connecting seats through bolts, and the chassis connecting seats are symmetrically fixed at four corners of the aerial work platform equipment;

the limiting assembly comprises two limiting switches, a contact shaft and a mounting plate, the upper position and the lower position of the two limiting switches are arranged on the inner side of the mounting plate and comprise an upper limiting switch and a lower limiting switch, the upper limiting switch and the lower limiting switch are used for limiting the stroke of the contact shaft, and the lower part of the mounting plate is fixed with the oil cylinder end plate through bolts.

Furthermore, the chassis connecting seat is integrally provided with a concave connecting plate which is in one-to-one correspondence with the through holes arranged on the oil cylinder end plate, the diameters of the through holes are the same, and reinforcing ribs are arranged between the connecting plate and the chassis connecting seat.

Furthermore, the contact shaft is a long rod, the lower part of the contact shaft is vertically fixed on a disc, and the disc is fixed with the oil cylinder ejector rod.

Furthermore, a clamp spring is arranged between the contact shaft and the disc, and a pressure spring is arranged on the contact shaft sleeve.

Furthermore, the mounting plate and the oil cylinder end plate are provided with elastic gaskets at the joints through bolts.

The landing leg of using limit switch who adopts above-mentioned technical scheme, its theory of operation is: when the oil cylinder ejects the oil cylinder ejector rod to enable the support leg to extend out to fully support the whole aerial work platform device, the oil cylinder barrel moves upwards, the contact shaft touches the lower limit switch, the lower limit switch acts, and the movement is stopped; when the supporting leg oil cylinder is completely retracted, the contact shaft and the disc move upwards along with the oil cylinder ejector rod, the top end of the contact shaft touches the upper limit switch, the upper limit switch acts, and the supporting leg is reset.

Compared with the prior art, the support leg applying the limit switch has the following beneficial effects:

the landing leg using the limit switch improves the application function of the existing landing leg, the original landing leg which can only be manually pressurized is applied with the assistance of the oil cylinder, the travel stroke is limited by the travel switch, the support function is realized to the maximum extent on the actual uneven road surface, the height of the landing leg can be easily adjusted by hydraulic control, and the landing leg is safe and efficient on the basis that the height of the landing leg cannot exceed the travel range.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below.

FIG. 1 is a perspective view of a leg using a limit switch according to the present embodiment;

FIG. 2 is a schematic diagram illustrating a leg reset state of the present embodiment using a limit switch;

FIG. 3 is a schematic diagram illustrating an extended working state of a leg using a limit switch according to the present embodiment;

FIG. 4 is a diagram illustrating the operation of the aerial work platform apparatus according to the present embodiment;

the device comprises an oil cylinder 1, an oil cylinder 11, an oil cylinder top rod 12, a grounding disc 13, an oil cylinder end plate 14, a disc 2, a chassis connecting seat 21, a connecting plate 22, a reinforcing rib 22, a bolt 3, an upper limit switch 4, a lower limit switch 5, a mounting plate 6, a contact shaft 7, a pressure spring 8 and a clamp spring 9.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.