阅读说明：本技术 一种带伸缩状态检测机构的支腿及作业车 (Landing leg with telescopic state detection mechanism and operation vehicle ) 是由 丁雷雷 王子铭 李春新 焦乐 苏航 于 2020-07-23 设计创作，主要内容包括：本发明公开了一种带伸缩状态检测机构的支腿及作业车,包括支腿固定架及支腿油缸,其特征在于：支腿油缸可滑动连接于支腿固定架,支腿油缸与支腿固定架之间设有用于限制支腿油缸滑动行程的限位装置；支腿固定架还设有行程开关,支腿油缸设有触发板；当支腿处于支撑状态时,限位装置处于下极限状态,触发板驱动行程开关动作；当支腿处于非支撑状态时,限位装置处于上极限状态,触发板与行程开关脱开。本发明安全可靠,简单高效,可保护结构件及电器件不受损坏。整体检测可自复位,动作灵活,故障率低,维修方便,很好地解决了现有技术方案中存在的弊端,可有效提升皮卡类或小底盘高空作业车的作业性能。(The invention discloses a supporting leg with a telescopic state detection mechanism and an operation vehicle, which comprise a supporting leg fixing frame and a supporting leg oil cylinder, and are characterized in that: the supporting leg oil cylinder is slidably connected with the supporting leg fixing frame, and a limiting device for limiting the sliding stroke of the supporting leg oil cylinder is arranged between the supporting leg oil cylinder and the supporting leg fixing frame; the supporting leg fixing frame is also provided with a travel switch, and the supporting leg oil cylinder is provided with a trigger plate; when the supporting legs are in a supporting state, the limiting device is in a lower limit state, and the trigger plate drives the travel switch to act; when the supporting legs are in the non-supporting state, the limiting device is in the upper limit state, and the trigger plate is disconnected with the travel switch. The invention is safe, reliable, simple and efficient, and can protect the structural part and the electric part from being damaged. The integral detection can be self-reset, the action is flexible, the fault rate is low, the maintenance is convenient, the defects existing in the prior art are well overcome, and the operation performance of the high-altitude operation vehicle with leather trucks or small chassis can be effectively improved.)

1. The utility model provides a landing leg of flexible state detection mechanism in area, includes landing leg mount (3) and landing leg hydro-cylinder (1), its characterized in that: the supporting leg oil cylinder (1) is connected to the supporting leg fixing frame (3) in a sliding mode, and a limiting device used for limiting the sliding stroke of the supporting leg oil cylinder (1) is arranged between the supporting leg oil cylinder (1) and the supporting leg fixing frame (3);

the supporting leg fixing frame (3) is also provided with a travel switch (4), and the supporting leg oil cylinder (1) is provided with a trigger plate (7);

when the supporting legs are in a supporting state, the limiting device is in a lower limit state, and the trigger plate (7) drives the travel switch (4) to act;

when the supporting leg is in the non-supporting state, the limiting device is in the upper limit state, and the trigger plate (7) is disconnected with the travel switch (4).

2. The outrigger with a telescopic state detection mechanism according to claim 1, wherein: the limiting device is connected to a fixed check ring (2) and a limiting check ring (6) of the supporting leg oil cylinder (1), when the supporting leg is in a supporting state, the limiting check ring (6) is connected to the lower end of the supporting leg fixing frame (3), and when the supporting leg is in a non-supporting state, the limiting check ring (6) is connected to the upper end of the supporting leg fixing frame (3).

3. The outrigger with a telescopic state detection mechanism according to claim 1, wherein: the supporting leg oil cylinder (1) is connected to the fixed check ring (2) and the limiting check ring (6) through the annular groove.

4. The outrigger with a telescopic state detection mechanism according to claim 1, wherein: the supporting leg oil cylinder (1) is further provided with a rotation stopping block (8), the supporting leg fixing frame (3) is provided with a positioning groove matched with the rotation stopping block (8), and the rotation stopping block (8) is connected to the positioning groove.

5. The outrigger with a telescopic state detection mechanism according to claim 4, wherein: and the limiting check ring (6), the rotation stopping block (8) and the trigger plate (7) are welded on the outer surface of the supporting leg oil cylinder (1).

6. An operation car which is characterized in that: a leg comprising the telescopic state detection mechanism according to any one of claims 1 to 5.

Technical Field

The invention relates to the technical field of engineering operation vehicles, in particular to a supporting leg with a telescopic state detection mechanism and an operation vehicle.

Background

The outrigger is one of the key components of the work vehicle. The telescopic state detection of the supporting legs is one of the core functions of the overhead working truck, and the difference of the detection modes directly influences the operation of the whole truck and the safety operation performance of the whole truck. At present, the landing leg of high-altitude vehicle detects mainly has two kinds of modes: one is a conventional approach switch detection mode, and the other is a travel switch detection mode. If adopt traditional proximity switch detection mode, detection cost is higher, and proximity switch is signal detection, and the reliability is relatively poor. For above-mentioned two kinds of detection methods, the travel switch detects has mechanical trigger formula, and the precision is high, advantage with low costs, but travel switch among the prior art's stroke can't reach telescopic cylinder's flexible scope, consequently if need detect the flexible state of landing leg through travel switch, just need redesign the structure of landing leg.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention provides a supporting leg with a telescopic state detection mechanism and an operation vehicle, and solves the technical problem of low reliability in monitoring of the telescopic state of the supporting leg.

In order to achieve the above purpose, the invention adopts the following technical scheme:

the utility model provides a landing leg of flexible state detection mechanism in area, includes landing leg mount and landing leg hydro-cylinder, its characterized in that: the supporting leg oil cylinder is slidably connected with the supporting leg fixing frame, and a limiting device for limiting the sliding stroke of the supporting leg oil cylinder is arranged between the supporting leg oil cylinder and the supporting leg fixing frame;

the supporting leg fixing frame is also provided with a travel switch, and the supporting leg oil cylinder is provided with a trigger plate;

when the supporting legs are in a supporting state, the limiting device is in a lower limit state, and the trigger plate drives the travel switch to act;

when the supporting legs are in the non-supporting state, the limiting device is in the upper limit state, and the trigger plate is disconnected with the travel switch.

Preferably, the above-mentioned support leg with a telescopic state detection mechanism: the limiting device is connected to a fixed check ring and a limiting check ring of the supporting leg oil cylinder, when the supporting leg is in a supporting state, the limiting check ring is connected to the lower end of the supporting leg fixing frame, and when the supporting leg is in a non-supporting state, the limiting check ring is connected to the upper end of the supporting leg fixing frame.

Preferably, the above-mentioned support leg with a telescopic state detection mechanism: the supporting leg oil cylinder is connected with the fixed check ring and the limiting check ring through the annular groove.

Preferably, the above-mentioned support leg with a telescopic state detection mechanism: the landing leg hydro-cylinder still is equipped with the rotation stopping piece, and the landing leg mount is equipped with rotation stopping piece assorted constant head tank, and rotation stopping piece connects in the constant head tank.

Preferably, the above-mentioned support leg with a telescopic state detection mechanism: and the limiting check ring, the rotation stopping block and the trigger plate are welded on the outer surface of the supporting leg oil cylinder.

An operation car which is characterized in that: the landing leg with the telescopic state detection mechanism comprises any one of the landing legs.

The invention achieves the following beneficial effects:

compared with the prior art, the invention has the advantages of safety, reliability, simplicity, high efficiency and capability of protecting the structural part and the electric part from being damaged. The whole detection can be self-reset, the action is flexible, the failure rate is low, the maintenance is convenient, and the defects existing in the prior art are well overcome.

The invention is particularly suitable for leather-card type or small-chassis high-altitude operation vehicles, effectively solves the problem that the inclined supporting leg of the small-load high-altitude operation vehicle is difficult to detect, and can effectively improve the operation performance of the leather-card type or small-chassis high-altitude operation vehicle.

Drawings

FIG. 1 is a side view of a leg with a telescoping position detection mechanism of the present invention;

FIG. 2 is a front view of the leg with a telescoping position detection mechanism of the present invention;

the meaning of the reference numerals: 1-a support oil cylinder; 2-fixing a retainer ring; 3-supporting leg fixing frame; 4-a travel switch; 5-a travel switch detection rod; 6-limiting retainer ring; 7-trigger plate; 8-rotation stopping block; 9-support leg.

Detailed Description

The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

As shown in fig. 1 and 2: the embodiment discloses a landing leg of flexible state detection mechanism in area, including landing leg mount 3 and landing leg hydro-cylinder 1: but landing leg hydro-cylinder 1 sliding connection is in landing leg mount 3, is equipped with the stop device who is used for restricting landing leg hydro-cylinder 1 slip stroke between landing leg hydro-cylinder 1 and the landing leg mount 3, and landing leg mount 3 still is equipped with travel switch 4, and landing leg hydro-cylinder 1 is equipped with trigger plate 7. When the supporting legs are in a supporting state, the limiting device is in a lower limit state, and the trigger plate 7 drives the travel switch 4 to act; when the supporting leg is in the non-supporting state, the limiting device is in the upper limit state, and the trigger plate 7 is disconnected with the travel switch 4.

Preferably, the limiting device of this embodiment is a fixing retainer ring 2 and a limiting retainer ring 6 connected to the leg cylinder 1, when the leg is in the supporting state, the limiting retainer ring 6 is connected to the lower end (lower limit state) of the leg fixing frame 3, and when the leg is in the non-supporting state, the limiting retainer ring 6 is connected to the upper end (upper limit state) of the leg fixing frame 3.

Specifically, in order to promote the strength of the limiting device, the supporting leg oil cylinder 1 of the embodiment is connected to the fixed retainer ring 2 and the limiting retainer ring 6 through the ring grooves. Two retaining rings are installed in the inside of corresponding annular, have promoted intensity on the one hand, moreover, because the position of retaining ring need with travel switch 4 the position, trigger the stroke phase-match, consequently can also play the effect of location.

Because trigger plate 7 is not cyclic annular, can trigger travel switch 4 in order to guarantee to trigger plate 7, need to guarantee that landing leg hydro-cylinder 1 does not take place to rotate, in order to realize this requirement, landing leg hydro-cylinder 1 of this embodiment still is equipped with and ends commentaries on classics piece 8, landing leg mount 3 is equipped with and ends 8 assorted constant head tanks of commentaries on classics piece, it connects in the constant head tank to end commentaries on classics piece 8, it is required to explain that end commentaries on classics piece 8 need can slide in the constant head tank, no matter the landing leg is in supported state or non-supported state, end commentaries on classi. The limiting retainer ring 6, the rotation stopping block 8 and the trigger plate 7 of the embodiment are preferably welded on the outer surface of the leg oil cylinder 1. The fixed retainer ring 2 can be detachably mounted on the supporting leg oil cylinder 1, so that the supporting leg oil cylinder 1 can be assembled and maintained conveniently.

During the use, when the landing leg is in the shrink state, under the effect of gravity, landing leg hydro-cylinder 1 glides along landing leg mount 3, makes spacing retaining ring 6 connect in the upper end (upper limit state) of landing leg mount 3, triggers board 7 and throw off with travel switch detection bar 4 of travel switch 4 this moment. The landing leg hydro-cylinder 1 stretches out to when contacting ground through stabilizer blade 9, under ground reaction force effect, landing leg hydro-cylinder 1 moves up along landing leg mount 3, when spacing retaining ring 6 contacted the lower extreme of landing leg mount 3, trigger plate 7 can extrude travel switch detection pole 5, show that the landing leg has begun to be in actual support state, can stop stretching out of landing leg hydro-cylinder 1 this moment, in practical application, when stabilizer blade 9 contacts ground, landing leg hydro-cylinder 1 still can continue to stretch out and be used for increasing the holding power.

Compared with the prior art, the embodiment is safe, reliable, simple and efficient, and can protect the structural part and the electric part from being damaged. The whole detection can be self-reset, the action is flexible, the failure rate is low, the maintenance is convenient, and the defects existing in the prior art are well overcome. The embodiment is particularly suitable for the pickup type or small-chassis high-altitude operation vehicle, effectively solves the problem that the inclined supporting leg of the small-load high-altitude operation vehicle is difficult to detect, and can effectively improve the operation performance of the pickup type or small-chassis high-altitude operation vehicle.

The embodiment also discloses a working vehicle which comprises the support leg with the telescopic state detection mechanism.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.