CN216269189U - Telescopic stable supporting leg - Google Patents

Abstract

The utility model discloses a telescopic stable supporting leg which comprises a fixed arm, a bending type movable arm, a telescopic oil cylinder assembly and a vertical oil cylinder assembly, wherein the fixed arm is fixedly connected with the fixed arm; the auxiliary frame is provided with two fixed arms which are fixed on the auxiliary frame in an external splayed shape, the two bending movable arms are respectively movably arranged on the two fixed arms, the movable ends of the bending movable arms are positioned in the fixed arms, the stretching out and the retracting of the bending movable arms are realized through a telescopic oil cylinder assembly, and the bending ends of the bending movable arms on the two sides are mutually parallel; the vertical perpendicular hydro-cylinder subassembly of installing of type digging arm bending end of bending, perpendicular hydro-cylinder subassembly is in the state of withdrawing during the transportation state, and perpendicular hydro-cylinder subassembly is in the state of stretching out during the operation of erectting. The utility model can solve the problems that the special vehicle used in narrow regions is not enough in anti-overturning stable moment under the condition of limited work site and space, and the width of the support leg does not exceed the width of the bridge in a transportation state.

Description

Telescopic stable supporting leg

Technical Field

The utility model relates to the technical field of emergency bridge equipment, in particular to a telescopic stable supporting leg.

Background

The special vehicle is equipped with and uses the stable landing leg as the strong point in the operation process of erectting, withdrawing, relies on the chassis dead weight to provide anti-overturning stable moment. When the conditioning mass is limited, the stabilizing moment provided by the self-weight of the chassis is limited, and at the moment, in order to ensure the operation stability, the supporting point needs to move forwards. In addition, because the special vehicle that narrow region used equips width direction size restriction, stable landing leg need be withdrawed to the size limit during the transport state in, requires stable landing leg to set up to the movable type, just can satisfy job stabilization requirement and transport state and do not overrun the requirement. The current movable supporting leg opening mode comprises the following steps: telescoping, swing, and frog.

The swing type supporting leg rotates a certain angle around the hinge point in the opening and retracting processes, and no obstacle obstructing the rotation of the supporting leg can be arranged in the sweeping range of the supporting leg; in addition, due to the limitation of the width dimension of the bridge span, the swing type supporting leg is in a splayed shape after being opened, the extending length is larger, and the requirements on a working site and space are higher. The frog type supporting leg has limited size of a rocker arm of the supporting leg, the span of the supporting leg is small, and the forward movement amount of a supporting point cannot meet the requirement of operation stability.

SUMMERY OF THE UTILITY MODEL

In view of the above, the utility model provides a telescopic stable support leg, which can solve the problem that the anti-overturning stable moment of a special vehicle used in a narrow region is insufficient under the condition of limited work site and space, and the problem that the width of the support leg does not exceed the width of a bridge in a transportation state.

The technical scheme adopted by the utility model is as follows:

a telescopic stable landing leg comprises a fixed arm, a bending type movable arm, a telescopic oil cylinder assembly and a vertical oil cylinder assembly;

the auxiliary frame is characterized in that the auxiliary frame is provided with two fixed arms, the two fixed arms are fixed on the auxiliary frame in an external splayed shape, the two bending movable arms are respectively movably arranged on the two fixed arms, the movable ends of the bending movable arms are positioned in the fixed arms, the stretching out and the retracting of the bending movable arms are realized through a telescopic oil cylinder assembly, and the bending ends of the bending movable arms on the two sides are mutually parallel; the vertical perpendicular hydro-cylinder subassembly of installing of type digging arm bending end of bending, perpendicular hydro-cylinder subassembly is in the state of withdrawing during the transportation state, and perpendicular hydro-cylinder subassembly is in the state of stretching out during the operation of erectting.

Furthermore, a sliding block is arranged on the outer wall of the movable end of the bending type movable arm matched with the fixed arm.

Furthermore, an oil cylinder base II and an oil cylinder pin II are further arranged on the bending type movable arm and are used for fixedly connecting the telescopic oil cylinder assembly.

Furthermore, the bending end of the bending type movable arm is provided with a bearing cylinder for connecting a vertical oil cylinder assembly.

Furthermore, the fixed arm comprises a fixed arm beam, an oil cylinder seat I and an oil cylinder pin I;

and the oil cylinder seat I and the oil cylinder pin I are arranged in the fixed arm beam and are used for fixedly connecting the telescopic oil cylinder assembly.

Further, the vertical oil cylinder assembly comprises a vertical oil cylinder and a bearing disc, and the bearing disc is fixed at the bottom end of the vertical oil cylinder.

Has the advantages that:

1. according to the utility model, the movable arm is designed into a bending type, so that the problem that the width of the lower leg does not exceed the bridge width in a transportation state can be solved. Meanwhile, the purpose of forward movement of the supporting point is achieved through extension and retraction of the movable arm, and the problem that the special vehicle used in narrow regions is not enough in anti-overturning stable moment under the condition that a working site and space are limited is solved.

2. The outer wall of the movable end of the bending type movable arm matched with the fixed arm is also provided with a sliding block for reducing sliding friction force.

Drawings

FIG. 1 is an extended schematic view of a leg of the present invention.

Fig. 2 is a schematic illustration of the leg retraction of the present invention.

Fig. 3 is a three-dimensional schematic view of the composition structure of the leg of the present invention.

Fig. 4 is a schematic plan view of the structure of the leg assembly of the present invention.

The device comprises a fixed arm 1, a fixed arm beam 1, an oil cylinder seat I1, an oil cylinder pin I3, a bending type movable arm 2, a bearing cylinder 2-1, a bending type beam 2-2, an oil cylinder seat II 2-3, an oil cylinder pin II 2-4, a sliding block 2-5, a telescopic oil cylinder component 3, a vertical oil cylinder component 4, a vertical oil cylinder 4-1, a bearing disc 4-2, a bridge span 5 and an auxiliary frame 6.

Detailed Description

The utility model is described in detail below by way of example with reference to the accompanying drawings.

The utility model provides a telescopic stable supporting leg which comprises a fixed arm 1, a bending type movable arm 2, a telescopic oil cylinder assembly 3 and a vertical oil cylinder assembly 4.

As shown in fig. 3 and 4, the fixed arm 1 comprises a fixed arm beam 1-1, an oil cylinder base i 1-2 and an oil cylinder pin i 1-3; the oil cylinder base I1-2 and the oil cylinder pin I1-3 are arranged in the fixed arm beam 1-1 and are used for fixedly connecting the telescopic oil cylinder assembly 3.

The bending type movable arm 2 comprises a bearing cylinder 2-1, a bending type cross beam 2-2, an oil cylinder base II 2-3, an oil cylinder pin II 2-4 and a sliding block 2-5; the oil cylinder base II 2-3 and the oil cylinder pin II 2-4 are arranged at the movable end of the bending type cross beam 2-2. The outer wall of the movable end of the bending type beam 2-2 is also provided with a circle of sliding blocks 2-5 for reducing sliding friction force. The bending end of the bending type beam 2-2 is provided with a bearing cylinder 2-1 which is used for connecting a vertical oil cylinder assembly 4.

The vertical oil cylinder assembly 4 comprises a vertical oil cylinder 4-1 and a bearing disc 4-2, and the bearing disc 4-2 is fixed at the bottom end of the vertical oil cylinder 4-1.

As shown in fig. 1 and 2, two fixed arms 1 are fixed on an auxiliary frame 6 in an external splayed shape, two bending movable arms 2 are movably mounted on the two fixed arms 1 respectively, the movable ends of the bending movable arms 2 are located in the fixed arms 1, the extending and retracting of the bending movable arms 2 are realized through a telescopic oil cylinder assembly 3, and the bending ends of the bending movable arms 2 at two sides are parallel to each other; the bending end of the bending type movable arm 2 is vertically provided with a vertical oil cylinder assembly 4, the vertical oil cylinder assembly 4 is in a withdrawing state in a transportation state, and the vertical oil cylinder assembly 4 is in an extending state in erection operation.

When the telescopic oil cylinder assembly is installed, the bent movable arm 2 is inserted into one end, without the oil cylinder seat I1-2, of the fixed arm 1 and is adjusted to a proper position, and then the telescopic oil cylinder assembly 3 is installed at one end, with the oil cylinder seat I1-2, of the fixed arm 1. One end of the telescopic oil cylinder component 3 is connected with the oil cylinder seat I1-2 through an oil cylinder pin I1-3, and the other end of the telescopic oil cylinder component is connected with the oil cylinder seat II 2-3 through an oil cylinder pin II 2-4. Hole sites for installing oil cylinder pins are reserved at the oil cylinder base I1-2 and the oil cylinder base II 2-3 of the fixed arm beam 1-1 and the bending beam 2-2. The vertical oil cylinder assembly 4 is connected with the bending type movable arm 2 through a bearing cylinder 2-1. During transportation, the vertical oil cylinder assembly 4 is in a retracting state, and during operation, the vertical oil cylinder assembly 4 is in a putting down state.

The operation process is as follows: the bridge erecting vehicle stops in place, firstly extends the bending type movable arm 2 laterally through the amplitude variation of the telescopic oil cylinder component 3, then falls down the bearing disc 4-2 through the amplitude variation of the vertical oil cylinder 4-1, the supporting points are positioned at two sides of the bridge span 5 and are in a splayed shape after being opened relative to the swinging type supporting leg, and the extension length of the utility model is smaller; because the movable arm is of a bending type, the forward movement of a supporting point is realized, and the span of the supporting leg is larger. When the device is withdrawn, the operation process is opposite to the erection process.

In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. A telescopic stable landing leg is characterized by comprising a fixed arm, a bending type movable arm, a telescopic oil cylinder assembly and a vertical oil cylinder assembly;

the auxiliary frame is characterized in that the auxiliary frame is provided with two fixed arms, the two fixed arms are fixed on the auxiliary frame in an external splayed shape, the two bending movable arms are respectively movably arranged on the two fixed arms, the movable ends of the bending movable arms are positioned in the fixed arms, the stretching out and the retracting of the bending movable arms are realized through a telescopic oil cylinder assembly, and the bending ends of the bending movable arms on the two sides are mutually parallel; the vertical perpendicular hydro-cylinder subassembly of installing of type digging arm bending end of bending, perpendicular hydro-cylinder subassembly is in the state of withdrawing during the transportation state, and perpendicular hydro-cylinder subassembly is in the state of stretching out during the operation of erectting.

2. The telescopic stabilizer leg as claimed in claim 1, wherein the outer wall of the movable end of the bending type movable arm engaged with the fixed arm is provided with a slider.

3. The telescopic type stabilizing leg as claimed in claim 1 or 2, wherein the bending type movable arm is further provided with a cylinder base II and a cylinder pin II for fixedly connecting a telescopic cylinder assembly.

4. The telescopic stabilizer leg as claimed in claim 1 or 2, characterized in that the bent end of the bent type movable arm is provided with a bearing cylinder for connecting a vertical cylinder assembly.

5. The telescopic stabilizer leg as claimed in claim 3, characterized in that said fixed arm comprises a fixed arm beam, a cylinder block I and a cylinder pin I;

and the oil cylinder seat I and the oil cylinder pin I are arranged in the fixed arm beam and are used for fixedly connecting the telescopic oil cylinder assembly.

6. The telescopic stabilizing leg according to claim 1, wherein said vertical cylinder assembly includes a vertical cylinder and a carrier plate, said carrier plate being secured to a bottom end of the vertical cylinder.

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