Multifunctional loader-digger and supporting leg mechanism thereof

By incorporating switchable flexible and rigid contact surfaces in the outrigger mechanism of the excavator loader and utilizing a drive motor to rotate the gears, the problem of damage to smooth road surfaces caused by the sawtooth support structure in existing technologies is solved, achieving the effects of stable support and reduced damage.

CN224002011UActive Publication Date: 2026-03-17XCMG CONSTRUCTION MACHINERY CO LTD SCIENCE & TECHNOLOGY BRANCH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-24
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

The serrated support structure of existing excavators and loaders can damage the ground when working on smooth surfaces such as cement or asphalt, indicating that the design is unreasonable.

Method used

Design a multi-functional outrigger mechanism for excavators and loaders, equipped with a first ground contact surface and a second ground contact surface. Driven by a drive component such as a drive motor, the active gear is rotated to switch the ground contact surface of the support seat to adapt to different road conditions, including flexible plate surfaces and rigid raised surfaces, so as to achieve stable support and reduce damage.

Benefits of technology

It enables flexible switching of the support surface according to road conditions, which can not only provide stable support but also reduce damage to the road surface. The automatic locking function improves the flexibility and stability of the support.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a multifunctional loader-digger supporting leg mechanism which comprises a supporting leg and a supporting seat rotationally connected to the end of the supporting leg, a first ground plane and a second ground plane are arranged on the supporting seat, the first ground plane is used for supporting on a flat road surface, and the second ground plane is used for supporting on a muddy road surface. And the driving piece is used for driving the supporting seat to rotate. The supporting seat with the first grounding surface and the second grounding surface is rotatably connected to the end part of the supporting leg, so that the supporting surface can be flexibly switched according to the road surface condition, the stable supporting can be realized, and the damage to the road surface can be reduced. The driving motor arranged in the supporting leg drives the driving gear to rotate, the driven wheel and the supporting base integrated with the driven wheel can be driven to rotate, switching is convenient, and automatic locking can be achieved.
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Description

Technical Field

[0001] This application belongs to the field of engineering machinery technology, and in particular relates to a multi-functional excavator loader and its outrigger mechanism. Background Technology

[0002] Excavator loaders are multi-functional engineering machinery that integrates excavation and loading.

[0003] Currently, the support structure of backhoe loaders often uses serrated surfaces to achieve stable support on muddy roads. However, when working on smooth surfaces such as cement or asphalt, the existing serrated support structure will cause serious damage to the ground. Obviously, this single support structure is not reasonably designed. Summary of the Invention

[0004] In view of the above-mentioned problems in the prior art, this application provides a multi-functional excavator loader and its outrigger mechanism, which can flexibly switch the support surface according to the road conditions, so as to achieve stable support while reducing damage to the road surface.

[0005] To achieve the above objectives, the technical solution provided in this application is as follows:

[0006] In a first aspect, this application provides a multi-functional excavator loader outrigger mechanism, including an outrigger and a support base rotatably connected to the end of the outrigger. The support base is provided with a first ground surface and a second ground surface. The first ground surface is used for support on a flat road surface, and the second ground surface is used for support on a muddy road surface. It also includes a drive component for driving the support base to rotate.

[0007] Optionally, the driving component includes a drive motor and a drive gear mounted on the support leg. The drive motor drives the drive gear to rotate, and a driven wheel is mounted on the support base. The driven wheel meshes with the drive gear.

[0008] Optionally, the support base includes a base plate and two side plates disposed at both ends of the bottom end. A rotating shaft is disposed on the support leg, with both ends of the rotating shaft passing through the two side plates respectively. The driven wheel is disposed on the rotating shaft between the support leg and the side plate.

[0009] Optionally, the driven wheel is welded to the side plate.

[0010] Optionally, bushings are provided at both ends of the rotating shaft, and the bushings are welded to the outer side wall of the side plate.

[0011] Optionally, the first ground plane includes a flexible plate surface, and the second ground plane includes a rigid protruding surface.

[0012] Optionally, the flexible plate surface is a rubber plate, the rigid protrusion surface is wavy or sawtooth, and the flexible plate surface is opposite to the rigid protrusion surface.

[0013] Optionally, the drive motor is built into the outrigger and sealed by a mounting cover and a sealing gasket between the mounting cover and the outrigger housing.

[0014] Secondly, this application provides a multi-functional excavator loader, including a frame, a telescopic cylinder, and the outrigger mechanism described in the first aspect. The outrigger and the telescopic cylinder of the outrigger mechanism are rotatably connected to the frame, and the end of the outrigger away from the frame is hinged to the end of the telescopic cylinder away from the frame via a connecting plate.

[0015] Optionally, the outrigger mechanism is symmetrically arranged on both sides of the vehicle frame.

[0016] Compared with the prior art, this application has at least the following beneficial effects:

[0017] This application utilizes a support base with a first and a second contact surface rotatably connected to the end of the outrigger. This allows for flexible switching of the support surface according to road conditions, achieving stable support while minimizing damage to the road surface. A drive motor built into the outrigger drives the drive gear to rotate, which in turn rotates the driven wheel and the support base integrated with the driven wheel. Switching is convenient and can be automatically locked. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a multi-functional excavator loader according to an embodiment of this application;

[0020] Figure 2 This is a front view of the outrigger mechanism of the multi-functional excavator loader in the embodiments of this application;

[0021] Figure 3 This is a top view of the outrigger mechanism of the multi-functional excavator loader in the embodiments of this application;

[0022] Figure 4 This is a side view of the outrigger mechanism of the multi-functional excavator loader in the embodiments of this application;

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Outrigger; 2. Support base; 21. First ground contact; 22. Second ground contact; 23. Base plate; 24. Side plate; 3. Drive gear; 4. Driven wheel; 5. Shaft; 51. Bushing; 6. Frame; 7. Telescopic cylinder. Detailed Implementation

[0025] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use.

[0026] Example 1

[0027] like Figure 1-4 As shown, a multi-functional excavator loader outrigger mechanism includes an outrigger 1 and a support base 2 rotatably connected to the end of the outrigger 1. The support base 2 is provided with a first ground surface 21 and a second ground surface 22. The first ground surface 21 is used for support on a flat road surface, and the second ground surface 22 is used for support on a muddy road surface. It also includes a drive component for driving the support base 2 to rotate.

[0028] By driving the support seat 2 at the end of the outrigger 1 to rotate through the drive component, the switching between the first ground surface 21 and the second ground surface 22 can be easily realized, so that the outrigger 1 system can adapt to different road conditions, achieve stable support, and reduce damage to the road surface.

[0029] Example 2

[0030] The difference between this embodiment and Embodiment 1 is that the driving component includes a drive motor built into the support leg 1. The drive motor is sealed inside the support leg by a mounting cover plate, and a sealing gasket is provided between the cover plate and the support leg housing to prevent water from entering the motor. The output shaft of the drive motor is connected to the drive gear 3, and the drive motor drives the drive gear 3 to rotate. The support base 2 is provided with a driven wheel 4, which meshes with the drive gear 3. Thus, when the drive motor drives the drive gear 3 to rotate, it can drive the driven wheel 4 and the support base 2 to rotate, realizing the switching between the first ground surface 21 and the second ground surface 22.

[0031] The support base 2 includes a base plate 23 and two side plates 24 disposed at both ends of the bottom. In this embodiment, both side plates 24 are welded to the base plate 23. A rotating shaft 5 is mounted on the support leg 1, with both ends of the rotating shaft 5 passing through the two side plates 24 respectively. A driven wheel 4 is disposed on the rotating shaft 5 between the support leg 1 and the side plates 24. By positioning the support leg 1 and the rotating shaft 5 between the two side plates 24, the stability of the support leg structure is ensured.

[0032] In this embodiment, the driven wheel 4 is welded to the side plate 24 to facilitate synchronous rotation between the driven wheel 4 and the side plate 24.

[0033] To ensure the stability of the rotating shaft 5, bushings 51 are fitted at both ends of the rotating shaft 5. The bushings 51 are welded to the outer side wall of the side plate 24 to limit the position of the rotating shaft 5.

[0034] In this embodiment, the first ground surface 21 includes a flexible plate surface, and the second ground surface 22 includes a rigid protruding surface. The flexible plate surface is a rubber sheet, and the rigid protruding surface is wavy or serrated, with the flexible plate surface and the rigid protruding surface facing each other. When the road surface is flat, it can be rotated to the first ground surface 21 of the rubber sheet for support. When the road surface is muddy, rotating to the rigid protruding surface makes the support more stable and firm.

[0035] Example 3

[0036] like Figure 1 As shown, a multi-functional excavator loader includes a frame 6, a telescopic cylinder 7, and a leg mechanism as described in this embodiment. Both the outrigger 1 and the telescopic cylinder 7 are rotatably connected to the frame 6. The end of the outrigger 1 furthest from the frame 6 is hinged to the end of the telescopic cylinder 7 furthest from the frame 6 via a connecting plate. The outrigger 1, the telescopic cylinder 7, and the frame 6 form a triangular structure. The telescopic cylinder 7 extends or retracts, causing the outrigger 1 to extend or retract. The leg mechanism is symmetrically arranged on both sides of the frame 6.

[0037] By rotatably connecting the support base 2, which has a first contact surface 21 and a second contact surface 22, to the end of the outrigger 1, the support surface can be flexibly switched according to the road surface conditions, achieving stable support while reducing damage to the road surface. The drive motor built into the outrigger 1 drives the drive gear 3 to rotate, which in turn drives the driven wheel 4 and the support base 2 integrated with the driven wheel 4 to rotate. The switching is convenient and can be automatically locked.

[0038] In this embodiment, the switch for the drive motor is located in the cab of the excavator loader for easy control.

[0039] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art will understand the specific meaning of the above terms in this application based on the specific circumstances.

[0040] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A multi-functional excavator loader outrigger mechanism characterized by, The support leg and the support base are rotatably connected, the support base is provided with a first ground contact surface and a second ground contact surface, the first ground contact surface is used for supporting on a flat road, and the second ground contact surface is used for supporting on a muddy road.

2. The multifunctional excavating loader kickout mechanism according to claim 1, characterized in that, The first ground contact surface comprises a flexible plate surface, and the second ground contact surface comprises a rigid convex surface.

3. The multifunctional excavating loader kickout mechanism according to claim 1, wherein, The driving member comprises a driving motor and a driving gear provided on the support leg, the driving motor is used for driving the driving gear to rotate, the support base is provided with a driven gear, and the driven gear is engaged with the driving gear.

4. The multifunctional excavating loader kickout mechanism according to claim 3, characterized in that, The support base comprises a bottom plate and two side plates provided at two ends of the bottom plate, a rotating shaft is provided on the support leg, and two ends of the rotating shaft pass through the two side plates respectively.

5. The multifunctional excavating loader kickout mechanism of claim 4, wherein, The driven gear is welded on the side plate.

6. The multifunctional excavating loader kickout mechanism of claim 4, wherein, Two ends of the rotating shaft are provided with shaft sleeves, and the shaft sleeves are welded on the outer side walls of the side plates.

7. The multifunctional excavating loader kickout mechanism of claim 2, wherein, The flexible plate surface is a rubber plate, the rigid convex surface is in a wave shape or a zigzag shape, and the flexible plate surface is opposite to the rigid convex surface.

8. The multifunctional excavating loader kickout mechanism of claim 3, wherein, The driving motor is built in the support leg and is sealed through a mounting cover plate and a sealing rubber gasket between the mounting cover plate and a shell of the support leg.

9. A multi-purpose excavator loader characterized by, The support leg mechanism comprises a vehicle frame, a telescopic cylinder, and the support leg mechanism, the support leg and the telescopic cylinder are rotatably connected with the vehicle frame, and one end of the support leg away from the vehicle frame is hinged to one end of the telescopic cylinder away from the vehicle frame through a connecting plate.

10. A multi-purpose excavator loader according to claim 9, characterised in that, The support leg mechanism is symmetrically arranged on both sides of the vehicle frame.