A telescopic stabilizing leg

Abstract

The application discloses a telescopic stable supporting leg, which comprises fixed arms, bending movable arms, telescopic oil cylinder assemblies and vertical oil cylinder assemblies. The fixed arms are two and are fixed on a subframe in the shape of an outer "8". The two bending movable arms are movably installed on the two fixed arms respectively. The movable ends of the bending movable arms are located in the fixed arms, and the telescopic oil cylinder assemblies are used to realize the extension and retraction of the bending movable arms. The bending ends of the two bending movable arms are parallel to each other. The vertical oil cylinder assemblies are vertically installed on the bending ends of the bending movable arms. The vertical oil cylinder assemblies are in the retracted state in the transportation state, and are in the extended state in the erecting operation. The application can solve the problems that the special vehicle used in the narrow region cannot provide enough anti-overturning stability torque in the case of limited working site and space, and the width of the supporting leg does not exceed the width of the bridge in the transportation state.

Description

Technical Field

[0001] This invention relates to the field of emergency bridge equipment technology, specifically to a telescopic stabilizing outrigger. Background Technology

[0002] Specialized vehicle equipment uses outriggers as support points during setup and dismantling, relying on the chassis's own weight to provide anti-tipping stabilizing torque. When the curb weight is limited, the stabilizing torque provided by the chassis's own weight is limited. In this case, to ensure operational stability, the support points need to be moved forward. Furthermore, due to the width-direction dimensional limitations of specialized vehicle equipment used in confined areas, the outriggers need to be retracted within dimensional limits during transport. This necessitates that the outriggers be designed to be movable to meet operational stability requirements and to ensure compliance with transport limits. Currently, movable outriggers are available in three types: telescopic, swing, and frog-type.

[0003] Swing-type outriggers require rotation around the hinge point at a certain angle during opening and retraction, and there must be no obstacles hindering their rotation within the sweeping range. Furthermore, due to bridge span width limitations, swing-type outriggers extend in a figure-eight shape with a significant outward extension, placing high demands on the work area and available space. Frog-type outriggers, on the other hand, have limited outrigger arm dimensions, smaller spans, and insufficient forward movement of the support point to ensure operational stability. Summary of the Invention

[0004] In view of this, the present invention provides a telescopic stabilizing outrigger that can solve the problem of insufficient anti-overturning stabilizing torque for special vehicles used in narrow areas with limited work sites and space, as well as the problem that the outrigger width does not exceed the bridge width during transportation.

[0005] The technical solution adopted in this invention is as follows:

[0006] A telescopic stabilizing outrigger includes a fixed arm, a bending movable arm, a telescopic cylinder assembly, and a vertical cylinder assembly.

[0007] The fixed arms consist of two parts, which are fixed to the subframe in an outward "V" shape. Two bending-type movable arms are movably mounted on the two fixed arms respectively. The movable ends of the bending-type movable arms are located inside the fixed arms, and the extension and retraction of the bending-type movable arms are realized by telescopic cylinder assemblies. The bending ends of the two bending-type movable arms are parallel to each other. A vertical cylinder assembly is vertically installed on the bending end of the bending-type movable arms. In the transportation state, the vertical cylinder assembly is in the retracted state, and in the erection operation state, the vertical cylinder assembly is in the extended state.

[0008] Furthermore, the outer wall of the movable end of the bent movable arm that mates with the fixed arm is provided with a slider.

[0009] Furthermore, the bent movable arm is also provided with a cylinder seat II and a cylinder pin II for fixing and connecting the telescopic cylinder assembly.

[0010] Furthermore, the bent end of the bent movable arm is provided with a bearing cylinder for connecting the vertical hydraulic cylinder assembly.

[0011] Furthermore, the fixed arm includes a fixed arm crossbeam, a cylinder seat I, and a cylinder pin I;

[0012] The cylinder seat I and cylinder pin I are installed inside the fixed arm crossbeam for fixed connection of the telescopic cylinder assembly.

[0013] Furthermore, the vertical cylinder assembly includes a vertical cylinder and a support plate, the support plate being fixed to the bottom end of the vertical cylinder.

[0014] Beneficial effects:

[0015] 1. This invention solves the problem of outrigger width not exceeding bridge width during transport by designing the movable boom as a bending type. Simultaneously, the extension and retraction of the movable boom allows the support point to be moved forward, addressing the issue of insufficient anti-overturning stabilizing torque in specialized vehicles used in narrow areas with limited workspace.

[0016] 2. The outer wall of the movable end of the bending movable arm that cooperates with the fixed arm of the present invention is also provided with a slider to reduce sliding friction. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the extended support leg of the present invention.

[0018] Figure 2 This is a schematic diagram of the outrigger retraction of the present invention.

[0019] Figure 3 This is a three-dimensional schematic diagram of the support leg structure of the present invention.

[0020] Figure 4 This is a schematic plan view of the support leg structure of the present invention.

[0021] Among them, 1-fixed arm, 1-1-fixed arm crossbeam, 1-2-cylinder seat I, 1-3-cylinder pin I, 2-bent type movable arm, 2-1-bearing cylinder, 2-2-bent type crossbeam, 2-3-cylinder seat II, 2-4-cylinder pin II, 2-5-slider, 3-telescopic cylinder assembly, 4-vertical cylinder assembly, 4-1-vertical cylinder, 4-2-bearing plate, 5-bridge span, 6-subframe. Detailed Implementation

[0022] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] The present invention provides a telescopic stabilizing outrigger, including a fixed arm 1, a bending movable arm 2, a telescopic cylinder assembly 3, and a vertical cylinder assembly 4.

[0024] like Figure 3 , Figure 4 As shown, the fixed arm 1 includes a fixed arm beam 1-1, a cylinder seat I1-2, and a cylinder pin I1-3; the cylinder seat I1-2 and the cylinder pin I1-3 are disposed inside the fixed arm beam 1-1 and are used to fix and connect the telescopic cylinder assembly 3.

[0025] The bending-type movable arm 2 includes a bearing cylinder 2-1, a bending-type crossbeam 2-2, a cylinder seat II 2-3, a cylinder pin II 2-4, and a slider 2-5; the cylinder seat II 2-3 and the cylinder pin II 2-4 are located at the movable end of the bending-type crossbeam 2-2. A ring of sliders 2-5 is also provided on the outer wall of the movable end of the bending-type crossbeam 2-2 to reduce sliding friction. The bending end of the bending-type crossbeam 2-2 is provided with a bearing cylinder 2-1 for connecting the vertical cylinder assembly 4.

[0026] The vertical cylinder assembly 4 includes a vertical cylinder 4-1 and a support plate 4-2, with the support plate 4-2 fixed to the bottom end of the vertical cylinder 4-1.

[0027] like Figure 1 , Figure 2 As shown, there are two fixed arms 1, which are fixed to the subframe 6 in an outward "V" shape. Two bending movable arms 2 are respectively movably installed on the two fixed arms 1. The movable end of the bending movable arm 2 is located inside the fixed arm 1, and the extension and retraction of the bending movable arm 2 are realized by the telescopic hydraulic cylinder assembly 3. The bending ends of the bending movable arms 2 on both sides are parallel to each other. A vertical hydraulic cylinder assembly 4 is vertically installed on the bending end of the bending movable arm 2. In the transportation state, the vertical hydraulic cylinder assembly 4 is in the retracted state, and in the erection operation, the vertical hydraulic cylinder assembly 4 is in the extended state.

[0028] During installation, first insert the bent movable arm 2 into the end of the fixed arm 1 without the cylinder seat I1-2 and adjust it to a suitable position. Then, install the telescopic cylinder assembly 3 from the end of the fixed arm 1 with the cylinder seat I1-2. One end of the telescopic cylinder assembly 3 is connected to the cylinder seat I1-2 via cylinder pin I1-3, and the other end is connected to the cylinder seat II2-3 via cylinder pin II2-4. The fixed arm crossbeam 1-1 and the bent crossbeam 2-2 have pre-drilled holes for installing cylinder pins at the cylinder seats I1-2 and II2-3, respectively. The vertical cylinder assembly 4 is connected to the bent movable arm 2 via the bearing cylinder 2-1. During transportation, the vertical cylinder assembly 4 is in the retracted state; during operation, the vertical cylinder assembly 4 is in the lowered state.

[0029] The operation process is as follows: The bridge erecting vehicle stops in place, and firstly, the bending movable arm 2 extends laterally through the telescopic hydraulic cylinder assembly 3. Then, the bearing plate 4-2 is lowered using the vertical hydraulic cylinder 4-1. The support points are located on both sides of the bridge span 5. Compared with the "V" shape formed when the swing outriggers are opened, the extension length of this invention is smaller. Because the movable arm is bending, the support point is moved forward, and the span of the outriggers is larger. During dismantling, the operation process is the reverse of the erection process.

[0030] In summary, the above are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A telescopic stabilizing outrigger, characterized in that, Includes fixed boom, bending boom, telescopic cylinder assembly and vertical cylinder assembly; The fixed arms consist of two parts, fixed to the subframe in an outward "V" shape. Two bending-type movable arms are movably mounted on the two fixed arms respectively. The movable ends of the bending-type movable arms are located inside the fixed arms, and the extension and retraction of the bending-type movable arms are achieved by telescopic hydraulic cylinder assemblies. The bending ends of the two bending-type movable arms are parallel to each other on the horizontal plane. A vertical hydraulic cylinder assembly is vertically installed on the bending end of the bending-type movable arms. In the transportation state, the vertical hydraulic cylinder assembly is in the retracted state, and in the erection operation state, the vertical hydraulic cylinder assembly is in the extended state.

2. The telescopic stabilizing outrigger as described in claim 1, characterized in that, The movable end of the bent movable arm that mates with the fixed arm is provided with a slider on its outer wall.

3. The telescopic stabilizing outrigger as described in claim 1 or 2, characterized in that, The bent movable arm is also provided with a cylinder seat II and a cylinder pin II for fixing and connecting the telescopic cylinder assembly.

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

5. The telescopic stabilizing outrigger as described in claim 3, characterized in that, The fixed arm includes a fixed arm crossbeam, a cylinder seat I, and a cylinder pin I; The cylinder seat I and cylinder pin I are installed inside the fixed arm crossbeam for fixed connection of the telescopic cylinder assembly.

6. The telescopic stabilizing outrigger as described in claim 1, characterized in that, The vertical cylinder assembly includes a vertical cylinder and a support plate, with the support plate fixed to the bottom of the vertical cylinder.

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