outrigger device

Abstract

This application provides an outrigger device, relating to the field of tractor auxiliary support technology, to optimize the front-loading outrigger structure to a certain extent, simplify the support and storage process, and ensure support stability. The outrigger device provided by this application includes a main frame, a support assembly, and an unlocking assembly. The support assembly includes an outer support and an inner support. One end of the outer support is rotatably connected to the main frame, and the outer support forms a receiving space, within which the inner support is stored. One end of the inner support is rotatably connected to the main frame, and the other end forms a positioning post. The inner wall of the outer support forms a guide groove. The positioning post enters along the opening of the guide groove and slides to the limit position of the guide groove, allowing the outer support to fully open and form a triangular support structure with the inner support and the main frame. The unlocking assembly includes a locking hook and a mating component. The locking hook is disposed on the main frame, and the mating component is disposed inside the outer support and is movably connected to the outer support.

Description

Technical Field

[0001] This utility model relates to the field of tractor auxiliary support technology, and in particular to a support leg device. Background Technology

[0002] With the widespread application of agricultural and construction machinery, front loaders, as important supporting equipment for tractors, play a crucial role in material handling, earthmoving, and other fields. The outrigger system, as one of the core components of a front loader, directly affects the overall working efficiency and operational safety of the equipment.

[0003] In existing technologies, outrigger devices typically employ a mechanical fixing structure, connecting the inner support of the outrigger to the outrigger body via a pin, supplemented by a cotter pin to prevent the pin from falling off. This structure requires precise alignment of the inner support hole and the outrigger hole when switching between supported states, often necessitating two people working together: one to align the holes, and the other to insert the pin and install the cotter pin. This design not only increases labor costs but also reduces operational efficiency.

[0004] Furthermore, the traditional cotter pin fixing method has inherent defects due to the strong vibrations that inevitably occur during the operation of the front-loading equipment. Prolonged vibration can easily cause the cotter pins to loosen or even fall off, leading to pin displacement or complete detachment, creating safety hazards such as accidental retraction of the outriggers or support failure. This structural defect not only affects the normal use of the equipment but may also pose a threat to the personal safety of the operators.

[0005] Therefore, there is an urgent need to provide a support leg device to address the problems existing in the prior art to some extent. Utility Model Content

[0006] The purpose of this invention is to provide a support leg device that optimizes the front-loading support leg structure to a certain extent, simplifies the support and storage process, and ensures support stability.

[0007] This utility model provides a support leg device, including a main frame, a support assembly, and an unlocking assembly. The support assembly includes an outer support and an inner support. One end of the outer support is rotatably connected to the main frame, and the outer support forms a receiving space, in which the inner support is housed. One end of the inner support is rotatably connected to the main frame, and the other end forms a positioning post. The inner wall of the outer support forms a guide groove. The positioning post enters along the opening of the guide groove and slides to the limit position of the guide groove. When the outer support is fully opened, it forms a triangular support structure with the inner support and the main frame. The unlocking assembly includes a locking hook and a mating component. The locking hook is disposed on the main frame, and the mating component is disposed on the inner side of the outer support and is movably connected to the outer support.

[0008] The support assembly further includes a torsion spring, and one end of the inner support is rotatably connected to the main frame through the torsion spring.

[0009] Specifically, a connecting ear is formed on the main frame, and the torsion spring is connected to the connecting ear.

[0010] The support assembly further includes a first guide plate and a second guide plate. The interface of the outer support is U-shaped. The first guide plate and the second guide plate are disposed opposite to each other on the inner sides of the two side walls of the outer support, and the guide groove is formed on the first guide plate and the second guide plate.

[0011] Specifically, the guide groove is arc-shaped.

[0012] The unlocking component also includes a pull member, one end of which is connected to the outer support and the other end of which is connected to the mating member, providing a preload force to the mating member.

[0013] Specifically, the two side walls of the outer support are each formed with a waist hole corresponding to the position of the mating member. The waist hole extends along the length of the outer support. The mating member is slidably disposed in the waist hole, and the pulling member can pull the mating member to be held in the first position of the waist hole.

[0014] Furthermore, the locking hook has a groove and an arc-shaped guide portion, and the mating part can enter the groove by contacting the arc-shaped guide portion.

[0015] Furthermore, the pulling element is a tension spring.

[0016] Furthermore, the support assembly also includes a support leg, which is rotatably connected to the end of the outer support away from the main frame.

[0017] Compared with the prior art, the outrigger device provided by this utility model has the following advantages: The outrigger device provided by this utility model includes a main frame, a support assembly, and an unlocking assembly. The support assembly includes an outer support and an inner support. One end of the outer support is rotatably connected to the main frame and forms a receiving space, in which the inner support is housed. One end of the inner support is rotatably connected to the main frame, and the other end forms a positioning post. The inner wall of the outer support forms a guide groove. The positioning post enters along the opening of the guide groove and slides to the limit position of the guide groove. When the outer support is fully opened, it forms a triangular support structure with the inner support and the main frame. The unlocking assembly includes a locking hook and a mating part. The locking hook is set on the main frame, and the mating part is set on the inner side of the outer support and is movably connected to the outer support.

[0018] This analysis shows that the space formed by the outer support can accommodate the inner support, thus allowing for a smaller storage space when stored. This enables the inner support to be folded into the outer support and also ensures the service life of the inner support to a certain extent.

[0019] By rotatably connecting one end of the outer support to the main frame and one end of the inner support to the main frame, and forming a positioning post at the other end of the inner support, and forming a guide groove on the inner wall of the outer support, when the outer support is rotated, the end of the inner support with the positioning post can slide within the outer support, while the other end of the inner support rotates relative to the main frame.

[0020] Because the inner wall of the outer support in this application has a guide groove, the positioning column can enter the guide groove through the opening of the guide groove and slide in the guide groove until it slides to the limit position of the guide groove, thereby enabling the outer support, inner support and main frame to form a triangular support structure, and the end of the outer support away from the main frame to contact the ground, thereby completing the support action for the front loading equipment.

[0021] Understandably, when the outriggers are in a supported state, the weight of the front loading equipment is applied to the outriggers, which keeps the positioning pins at the limit position of the guide groove, thus ensuring the overall stability of the outriggers to a certain extent.

[0022] Furthermore, this application provides a locking hook on the main frame and a corresponding fitting on the outer support. When the outer support changes from a supported state to a folded state, the fitting can be hooked by the locking hook, thereby completing the retraction and folding of the entire support leg device.

[0023] Correspondingly, when changing from the supported state to the folded state, the outer support is lifted first. During the rotation of the outer support, the inner support will also rotate. At the same time, the positioning post at the end of the inner support away from the main frame will automatically move from the extreme position of the guide groove to the opening until it is disengaged from the guide groove. When the outer support is completely in contact with the main frame, the inner support is completely retracted into the receiving space. At this time, the mating parts are hooked by the locking hook, so that the overall support leg device is kept in the retracted state.

[0024] During the retraction process, since there is no need for hole alignment or other operations, minimal human intervention is required. During the support process, the inner and outer supports are stably maintained in a triangular support state by the formed guide groove and the gravity of the front loading equipment itself. Thus, the outrigger device provided in this application has both stable support capabilities and a fast and convenient retraction process, reducing labor costs and improving work efficiency. Attached Figure Description

[0025] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 A schematic diagram of the supporting leg device in the supporting state provided in the embodiment of this utility model; Figure 2 A cross-sectional view of the outrigger device in a supported state according to an embodiment of the present utility model; Figure 3 This is a structural schematic diagram of the folded-up state of the support leg device provided in an embodiment of the present utility model.

[0027] In the diagram: 1-Main frame; 101-Locking hook; 1011-Arc-shaped guide part; 1012-Groove; 102-Connecting ear; 2-Outer support; 201-First guide plate; 2011-Guide groove; 202-Waist hole; 3-Inner support; 301-Positioning post; 4-Torsion spring; 5-Matching part; 6-Pull part; 7-Supporting foot. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, 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 components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0029] In the description of the embodiments of this application, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0030] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0031] In the description of the embodiments of this application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "connect" 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 of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] As used herein, the term “and / or” includes any one of the relevant items listed and any combination of any two or more items.

[0033] For ease of description, spatial relation terms such as “above,” “upper,” “below,” and “lower” may be used herein to describe the relationship between one element and another as shown in the accompanying drawings. Such spatial relation terms are intended to include not only the orientation depicted in the drawings but also the different orientations of the device during use or operation.

[0034] The terminology used herein is for the purpose of describing various examples only and is not intended to limit this disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms “comprising,” “including,” and “having” enumerate the stated features, quantities, operations, components, elements, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0035] Variations in the shapes shown in the accompanying drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the accompanying drawings, but include changes in shape that may occur during manufacturing.

[0036] The features of the examples described herein can be combined in various ways that will be apparent upon understanding the disclosure of this application. Furthermore, although the examples described herein have various constructions, other constructions are possible, as will be apparent upon understanding the disclosure of this application. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis that they can be implemented by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0037] like Figure 1 As shown, this utility model provides a support leg device, including a main frame 1, a support assembly, and an unlocking assembly. The support assembly includes an outer support 2 and an inner support 3. One end of the outer support 2 is rotatably connected to the main frame 1, and the outer support 2 forms a receiving space, with the inner support 3 housed within the receiving space. One end of the inner support 3 is rotatably connected to the main frame 1, and the other end forms a positioning post 301. The inner wall of the outer support 2 forms a guide groove 2011. The positioning post 301 enters along the opening of the guide groove 2011 and slides to the limit position of the guide groove 2011, so that the outer support 2 is fully opened and forms a triangular support structure with the inner support 3 and the main frame 1. The unlocking assembly includes a locking hook 101 and a mating part 5. The locking hook 101 is disposed on the main frame 1, and the mating part 5 is disposed on the inner side of the outer support 2, and the mating part 5 is movably connected to the outer support 2.

[0038] Compared with the prior art, the outrigger device provided by this utility model has the following advantages: The support leg device provided by this utility model can accommodate the inner support 3 through the receiving space formed by the outer support 2, so that it can have a smaller storage space when stored, allowing the inner support 3 to be folded into the outer support 2, and also ensuring the service life of the inner support 3 to a certain extent.

[0039] By rotatably connecting one end of the outer support 2 to the main frame 1 and one end of the inner support 3 to the main frame 1, and forming a positioning post 301 at the other end of the inner support 3, and forming a guide groove 2011 on the inner wall of the outer support 2, when the outer support 2 is rotated, the end of the inner support 3 with the positioning post 301 can slide within the outer support 2, while the other end of the inner support 3 rotates relative to the main frame 1.

[0040] Since the inner wall of the outer support 2 in this application has a guide groove 2011, the positioning column 301 can enter the guide groove 2011 through the opening of the guide groove 2011 and slide in the guide groove 2011 until it slides to the limit position of the guide groove 2011, thereby forming a triangular support structure between the outer support 2, the inner support 3 and the main frame 1, and the end of the outer support 2 away from the main frame 1 contacts the ground, thereby completing the support action for the front loading equipment.

[0041] Understandably, because the weight of the front loading equipment is applied to the outrigger device when it is in the supported state, the positioning column 301 will always be kept at the limit position of the guide groove 2011, thus ensuring the overall stability of the outrigger device to a certain extent.

[0042] Furthermore, this application provides a locking hook 101 on the main frame 1 and a corresponding mating part 5 on the outer support 2. Thus, when the outer support 2 changes from a supporting state to a folded state, the mating part 5 can be hooked by the locking hook 101, thereby completing the retraction and folding of the entire support leg device.

[0043] Correspondingly, when changing from the supported state to the folded state, the outer support 2 is lifted first. During the rotation of the outer support 2, the inner support 3 will also rotate. At the same time, the positioning post 301 at the end of the inner support 3 away from the main frame 1 will automatically move from the extreme position of the guide groove 2011 to the open position until it is disengaged from the guide groove 2011. When the outer support 2 is completely attached to the main frame 1, the inner support 3 is completely retracted into the receiving space. At this time, the mating part 5 is hooked by the locking hook 101, so that the overall support leg device is kept in the retracted state.

[0044] During the retraction process, since there is no need for hole alignment or other operations, minimal human intervention is required. During the support process, the inner support 3 and the outer support 2 are stably maintained in a triangular support state by the formed guide groove 2011 and the gravity of the front loading equipment itself. Thus, the outrigger device provided in this application has both stable support capability and a fast and convenient retraction process, reducing labor costs and improving work efficiency.

[0045] Optionally, such as Figures 1-3 As shown, the support assembly also includes a torsion spring 4, and one end of the inner support 3 is rotatably connected to the main frame 1 through the torsion spring 4.

[0046] By using the torsion spring 4 between the main frame 1 and the inner support 3, the torsion spring 4 can obtain torque when the inner support 3 gradually retracts. When the operating mating part 5 disengages from the locking hook 101, the torque of the torsion spring 4 can assist the manual labor in quickly unfolding the inner support 3 and the outer support 2, and even achieve fully automatic unfolding, thereby reducing the force required for manual handling of the outer support 2 and reducing the workload of manual labor.

[0047] Preferably, the main frame 1 in this application has a connecting ear 102 formed thereon, and the torsion spring 4 is connected to the connecting ear 102.

[0048] The connecting lug 102 formed on the main frame 1 provides installation space for the torsion spring 4. Since the torsion spring 4 is a consumable part, by setting the connecting lug 102 and installing the torsion spring 4 with the connecting shaft, when the torsion spring 4 needs to be replaced, there is no need to damage the structure of the main frame 1 and the inner support 3. At the same time, since the torsion spring 4 is at a certain distance from the inner support 3 and the main frame 1 by utilizing the connecting lug 102, it is easier to disassemble and assemble, thereby reducing the difficulty of maintenance to a certain extent.

[0049] Optionally, the support assembly in this application further includes a first guide plate 201 and a second guide plate. The interface of the outer support 2 is U-shaped. The first guide plate 201 and the second guide plate are disposed opposite to each other on the inner sides of the two side walls of the outer support 2, and a guide groove 2011 is formed on the first guide plate 201 and the second guide plate.

[0050] By arranging the first guide plate 201 and the second guide plate on the inner side of the two side walls of the outer support 2, two opposing guide grooves 2011 can be formed, so that the sliding and guiding process of the positioning column 301 is more uniformly stressed, avoiding the problem of jamming.

[0051] Preferably, such as Figure 2 As shown, the guide groove 2011 in this application is arc-shaped, which can limit the movement of the positioning post 301 to a certain extent by utilizing the curvature of the guide groove 2011, avoiding the problem of the positioning post 301 coming out of the guide groove 2011 in the supported state, and ensuring the stability of the supported state.

[0052] Optionally, such as Figure 2 As shown, the unlocking component in this application also includes a pull member 6, one end of which is connected to the outer support 2 and the other end is connected to the mating member 5, providing pre-tightening force to the mating member 5.

[0053] In this application, the mating part 5 can be rotatably connected to one side wall of the outer support 2 at one end and connected to the pulling part 6 at the other end. When the end of the mating part 5 connected to the pulling part 6 is pulled, the pulling part 6 can be stretched. When the mating part 5 enters the groove 1012 of the locking hook 101, the pulling part 6 is still in a stretched state, so that the mating part 5 can be tightly abutted in the groove 1012, thereby realizing the locking between the mating part 5 and the locking hook 101.

[0054] When unlocking is required, move one end of the mating part 5 so that it passes around the lock hook 101. After passing around the lock hook 101, release the mating part 5. The pulling part 6 will return to the retracted state, thereby driving the mating part 5 to return to its original position and completing the unlocking.

[0055] Preferably, the pulling element 6 in this application is a tension spring, and more preferably, such as Figure 2As shown, the outer support 2 in this application has waist holes 202 formed on both sides of the wall corresponding to the position of the mating part 5. The waist holes 202 extend along the length direction of the outer support 2. The mating part 5 is slidably disposed in the waist hole 202, and the pulling part 6 can pull the mating part 5 to be held in the first position of the waist hole 202.

[0056] The waist hole 202 formed on the outer support 2 can limit the movement of the mating part 5 and also serve as a guide to ensure a stable fit between the mating part 5 and the locking hook 101.

[0057] Optionally, such as Figure 1 As shown, the locking hook 101 in this application has a groove 1012 and an arc-shaped guide portion 1011, and the mating part 5 can enter the groove 1012 by contacting the arc-shaped guide portion 1011.

[0058] In actual operation, the operator moves the outer support 2 towards the main frame 1. When the mating part 5 encounters the locking hook 101, it first contacts the outer arc-shaped guide part 1011 of the locking hook 101. Under the guidance of the arc-shaped guide part 1011, the mating part 5 is forced to slide in the waist hole 202. During the sliding process, the tension spring will be stretched. When the mating part 5 moves to the groove 1012, the tension spring will pull the mating part 5 into the groove 1012 and always tightly abut against the bottom of the groove 1012, thereby achieving the locking between the mating part 5 and the locking hook 101, thus keeping the entire support leg device in the folded and retracted state with the main frame 1.

[0059] Optionally, such as Figures 1-3 As shown, the support component in this application also includes a support leg 7, which is rotatably connected to the end of the outer support 2 away from the main frame 1.

[0060] By setting a support foot 7 at the end of the outer support 2 away from the main frame 1, and rotatably connecting the support foot 7 to the outer support 2, the outer support 2 can adapt to the ground angle and always be in contact with the ground, thereby ensuring the support stability of the outer support 2.

[0061] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A leg device, characterized in that Includes the main frame, support components, and unlocking components; The support assembly includes an outer support and an inner support. One end of the outer support is rotatably connected to the main frame, and the outer support forms a receiving space, in which the inner support is housed. One end of the inner support is rotatably connected to the main frame, and the other end forms a positioning post. The inner wall of the outer support forms a guide groove. The positioning post enters along the opening of the guide groove and slides to the limit position of the guide groove. The outer support is fully opened to form a triangular support structure with the inner support and the main frame. The unlocking component includes a locking hook and a mating part. The locking hook is disposed on the main frame, and the mating part is disposed on the inner side of the outer support, and the mating part is movably connected to the outer support.

2. The leg arrangement of claim 1, wherein The support assembly also includes a torsion spring, and one end of the inner support is rotatably connected to the main frame via the torsion spring.

3. The leg arrangement of claim 2, wherein A connecting ear is formed on the main frame, and the torsion spring is connected to the connecting ear.

4. The leg arrangement of claim 1, wherein The support assembly further includes a first guide plate and a second guide plate. The interface of the outer support is U-shaped. The first guide plate and the second guide plate are disposed opposite to each other on the inner sides of the two side walls of the outer support, and the guide groove is formed on the first guide plate and the second guide plate.

5. The leg arrangement of claim 1, wherein The guide groove is arc-shaped.

6. The leg arrangement of claim 1, wherein The unlocking component also includes a pull member, one end of which is connected to the outer support and the other end of which is connected to the mating member, providing a preload force to the mating member.

7. The leg arrangement of claim 6, wherein The two side walls of the outer support are each formed with a waist hole corresponding to the position of the mating member. The waist hole extends along the length of the outer support. The mating member is slidably disposed in the waist hole, and the pulling member can pull the mating member to be held in the first position of the waist hole.

8. The leg arrangement of claim 7, wherein The locking hook has a groove and an arc-shaped guide portion, and the mating part can enter the groove by contacting the arc-shaped guide portion.

9. The leg arrangement of claim 7, wherein, The pulling element is a tension spring.

10. The leg arrangement of claim 1, wherein, The support assembly also includes a support leg, which is rotatably connected to the end of the outer support away from the main frame.

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