Lifting supporting leg device

Abstract

The utility model provides a lifting landing leg device, which relates to the technical field of landing legs and comprises a base, a hydraulic telescopic rod I is fixedly connected in the base, the top end of the hydraulic telescopic rod I extends to the top end of the base, and two groups of universal self-locking wheels in bilateral symmetry are arranged at the bottom end of the base. The universal self-locking wheels are located at the corners of the bottom end of the base correspondingly, the outer wall of the first hydraulic telescopic rod is fixedly connected with a servo motor, and the outer side of the base is movably connected with a set of symmetrical first power arms through connecting shafts. Through the arrangement of the second hydraulic telescopic rod, the first power arm, the second power arm and the supporting rod, the first power arm is driven by the output end of the second hydraulic telescopic rod to conduct vertical position adjustment, at the moment, the supporting rod and the second power arm can synchronously move along with the first power arm, and therefore the base is far away from the ground to reach the proper supporting height; and the supporting practicability and the use flexibility of the device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of outriggers, in particular to a lifting outrigger device. Background Art

[0002] The support leg is an elastic element with gas and liquid as working medium. It is composed of a pressure tube, a piston, a piston rod and several connecting parts. It is filled with high-pressure nitrogen. Since there is a through hole inside the piston, the gas pressure at both ends of the piston is equal, and the cross-sectional areas on both sides of the piston are different. One end is connected to the piston rod and the other end is not. Under the action of gas pressure, pressure is generated on the side with a smaller cross-sectional area, that is, the elastic force of the support rod. The size of the elastic force can be set by setting different nitrogen pressures or different diameters of piston rods. Unlike mechanical springs, the support rod has a nearly linear elastic curve.

[0003] However, in the prior art, the force bearing area of ​​the output end of the outrigger is fixed in actual use, and the support area cannot be adjusted, resulting in insufficient support stability. In view of this, we provide a lifting outrigger device. Utility Model Content

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a lifting leg device, including a base, a hydraulic telescopic rod 1 is fixedly connected to the inside of the base, and the top of the hydraulic telescopic rod 1 extends to the top of the base, and the bottom end of the base is provided with two groups of left-right symmetrical universal self-locking wheels, and the universal self-locking wheels are respectively located at the corners of the bottom end of the base, the outer wall of the hydraulic telescopic rod 1 is fixedly connected to a servo motor, and the outer side of the base is movably connected to a group of symmetrical power arms 1 through a connecting shaft.

[0005] As a preferred embodiment, the output end of the servo motor is fixedly connected to a rotating rod, and a thread is provided on the surface of the rotating rod, and a sliding block is sleeved on the surface of the rotating rod.

[0006] As a preferred embodiment, the outer side of the output end of the hydraulic telescopic rod 1 is movably connected to a group of symmetrical support blocks 1 through a hinge, and a connecting column is fixedly connected to one side of the support block 1 close to the rotating rod.

[0007] As a preferred embodiment, the connecting column and the opposite sides of the slider are both movably connected with a transmission arm, and the transmission arm and the slider form a rotating, stretching and folding connection structure through a rotating rod.

[0008] As a preferred embodiment, a group of power arms 2 are fixedly connected to both sides of the bottom end of the base, and the power arm 2 is located directly below the power arm 1. The power arm 2 and the opposite side of the power arm 1 are movably connected with a hydraulic telescopic rod 2, one end of the hydraulic telescopic rod 2 is fixedly connected to one side of the base, and the other end of the hydraulic telescopic rod 2 is fixedly connected to one side of the power arm 1.

[0009] As a preferred embodiment, the sides of the power arm 1 and the power arm 2 away from the base are both movably connected to a support rod via a connecting shaft, and the bottom end of the support rod is fixedly connected to a support block 2.

[0010] Compared with the prior art, the advantages and positive effects of the utility model are:

[0011] 1. The utility model is provided with a hydraulic telescopic rod 2, a power arm 1, a power arm 2 and a support rod, and utilizes the output end of the hydraulic telescopic rod 2 to drive the power arm 1 to adjust the up and down position. At this time, the support rod and the power arm 2 will move synchronously with the power arm 1, so that the base is away from the ground to reach a suitable support height, which is beneficial to improving the practicality of the support and the flexibility of the device.

[0012] 2. The utility model arranges a servo motor, a rotating rod, a slider and a support block. The servo motor is used to drive the rotating rod to rotate, so that the slider mounted on the surface of the rotating rod can be adjusted up and down. At this time, the transmission arm will stretch and fold, thereby unfolding the support block to increase the support area, which is beneficial to increase the stability of the support work. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The present invention is a three-dimensional structural schematic diagram.

[0014] Figure 2 The utility model is a schematic diagram of a hydraulic telescopic rod connection structure.

[0015] Figure 3 This is a schematic diagram of the servo motor connection structure provided by the utility model.

[0016] Figure 4 This is a schematic diagram of the support rod connection structure provided by the utility model.

[0017] Legend:

[0018] 1. Base; 2. Hydraulic telescopic rod 1; 3. Universal self-locking wheel; 4. Servo motor; 5. Power arm 1; 6. Rotating rod; 7. Sliding block; 8. Support block 1; 9. Connecting column; 10. Transmission arm; 11. Power arm 2; 12. Hydraulic telescopic rod 2; 13. Support rod; 14. Support block 2. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] like Figure 1-4 As shown, the utility model provides a technical solution: a lifting leg device, including a base 1, a hydraulic telescopic rod 2 is fixedly connected inside the base 1, and the top of the hydraulic telescopic rod 2 extends to the top of the base 1, and two groups of left-right symmetrical universal self-locking wheels 3 are arranged at the bottom end of the base 1, and the universal self-locking wheels 3 are respectively located at the corners of the bottom end of the base 1, the outer wall of the hydraulic telescopic rod 2 is fixedly connected to the servo motor 4, and the outer side of the base 1 is movably connected to a group of symmetrical power arms 5 through a connecting shaft.

[0021] like Figure 1 , Figure 2 , Figure 3 As shown, the output end of the servo motor 4 is fixedly connected to a rotating rod 6, and the surface of the rotating rod 6 is provided with a thread, and the surface of the rotating rod 6 is sleeved with a slider 7, and the outer side of the output end of the hydraulic telescopic rod 2 is movably connected to a group of symmetrical support blocks 8 through a hinge, and the side of the support block 8 close to the rotating rod 6 is fixedly connected to a connecting column 9. The connecting column 9 and the opposite side of the slider 7 are both movably connected to a transmission arm 10, and the transmission arm 10 and the slider 7 form a rotating, stretching and folding connection structure through the rotating rod 6.

[0022] like Figure 1 , Figure 4 As shown, a group of power arms 11 are fixedly connected to both sides of the bottom end of the base 1, and the power arm 11 is located directly below the power arm 15. The power arm 11 and the opposite side of the power arm 15 are movably connected with a hydraulic telescopic rod 12, one end of the hydraulic telescopic rod 12 is fixedly connected to one side of the base 1, and the other end of the hydraulic telescopic rod 12 is fixedly connected to one side of the power arm 15. The power arm 15 and the side of the power arm 11 away from the base 1 are both movably connected with a support rod 13 through a connecting shaft, and the bottom end of the support rod 13 is fixedly connected with a support block 14.

[0023] Working principle: When in use, first push the device to the supporting position, and then use the output end of the hydraulic telescopic rod 12 to drive the power arm 5 to adjust the up and down position. At this time, the support rod 13 and the power arm 11 will move synchronously with the power arm 5, so that the base 1 is away from the ground to reach a suitable supporting height, and then use the servo motor 4 to drive the rotating rod 6 to rotate, so that the slider 7 mounted on the surface of the rotating rod 6 is adjusted up and down. At this time, the transmission arm 10 will stretch and fold, thereby unfolding the support block 8 to increase the supporting area. After use, first retract the support block 8, then turn off the servo motor 4 to retract the hydraulic telescopic rod 2, and then retract the support rod 13 through the hydraulic telescopic rod 12 to make the universal self-locking wheel 3 fall to the ground.

Claims

1. A lifting leg device, comprising a base (1), characterized in that: A hydraulic telescopic rod (2) is fixedly connected to the interior of the base (1), and the top end of the hydraulic telescopic rod (2) extends to the top end of the base (1). Two groups of left-right symmetrical universal self-locking wheels (3) are arranged at the bottom end of the base (1), and the universal self-locking wheels (3) are respectively located at the corners of the bottom end of the base (1). A servo motor (4) is fixedly connected to the outer wall of the hydraulic telescopic rod (2), and a group of symmetrical power arms (5) are movably connected to the outer side of the base (1) via a connecting shaft.

2. A lifting leg device according to claim 1, characterized in that: The output end of the servo motor (4) is fixedly connected to a rotating rod (6), and a thread is provided on the surface of the rotating rod (6). A sliding block (7) is sleeved on the surface of the rotating rod (6).

3. A lifting leg device according to claim 2, characterized in that: The outer side of the output end of the hydraulic telescopic rod 1 (2) is movably connected to a group of symmetrical support blocks 1 (8) via a hinge, and a connecting column (9) is fixedly connected to the side of the support block 1 (8) close to the rotating rod (6).

4. A lifting leg device according to claim 3, characterized in that: The connecting column (9) and the opposite side of the sliding block (7) are both movably connected with a transmission arm (10), and the transmission arm (10) and the sliding block (7) form a rotating, stretching and folding connection structure through the rotating rod (6).

5. The lifting leg device according to claim 1, characterized in that: A set of power arms 2 (11) are fixedly connected to both sides of the bottom end of the base (1), and the power arms 2 (11) are located directly below the power arm 1 (5). A hydraulic telescopic rod 2 (12) is provided on the opposite side of the power arms 2 (11) and the power arm 1 (5), one end of the hydraulic telescopic rod 2 (12) is fixedly connected to one side of the base (1), and the other end of the hydraulic telescopic rod 2 (12) is fixedly connected to one side of the power arm 1 (5).

6. The lifting leg device according to claim 1, characterized in that: The sides of the power arm 1 (5) and the power arm 2 (11) away from the base (1) are both movably connected to a support rod (13) via a connecting shaft, and the bottom end of the support rod (13) is fixedly connected to a support block 2 (14).

Images