Lifting supporting leg

Abstract

The utility model provides a lifting support leg, which relates to the technical field of lifting mechanisms, and comprises a driving gear, the driving gear is meshed with a transmission gear, the bottom of the transmission gear is connected with a one-way tripping ratchet wheel, the lower end of the one-way tripping ratchet wheel is connected with a transmission screw rod, the transmission screw rod is further sleeved with a mounting nut plate, and the mounting nut plate is connected with the transmission gear. A supporting pad is arranged at the bottom of the transmission lead screw, and the one-way tripping ratchet wheel can drive the transmission lead screw to move up and down so that the supporting pad can ascend and descend.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting mechanisms, and more specifically, to a lifting support leg. Background Art

[0002] The lifting support leg is mainly installed under the workbench, such as the bottom of an AGV mobile cart. When it needs to stop, the support leg is lowered to make the AGV cart park stably, or the support leg is raised to enable the AGV cart to move through its own drive wheels.

[0003] In the prior art, the lifting support leg is less flexible during operation, its ability to assist the host (AGV cart) is weak, and the error rate during lifting adjustment is relatively high. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a lifting support leg, which can more flexibly control the lifting of the lifting support leg, improve the auxiliary ability of the support leg, and reduce the error rate during the lifting adjustment process.

[0005] The utility model is realized through the following technical solutions: it includes a driving gear, which meshes with a transmission gear. The bottom of the transmission gear is connected with a one-way release ratchet, and the lower end of the one-way release ratchet is connected with a transmission screw rod. An installation nut plate is also sleeved on the transmission screw rod, and a support pad is arranged at the bottom of the transmission screw rod. The one-way release ratchet can drive the transmission screw rod to move up and down, so that the support pad can be lifted and lowered.

[0006] In order to better realize the utility model, further, the one-way release ratchet includes an upper ratchet and a lower ratchet, and the upper ratchet and the lower ratchet are in one-way engagement.

[0007] In order to better realize the utility model, further, a fixed shaft is also arranged above the transmission gear, an adjusting spring is sleeved on the fixed shaft, and a locking nut is arranged at the top of the fixed shaft.

[0008] In order to better realize the utility model, further, the driving gear is connected with the output shaft of a driving motor.

[0009] In order to better realize the utility model, further, it also includes a mounting plate. The driving gear, the transmission gear and the one-way release ratchet are arranged above the mounting plate, and the transmission screw rod and the driving motor are arranged below the mounting plate.

[0010] In order to better realize the utility model, further, a fixed adjusting seat is also arranged between the driving gear and the mounting plate, so that the driving gear is parallel to the transmission gear and the driving gear meshes with the transmission gear.

[0011] The beneficial effects of the present utility model are as follows:

[0012] By providing a driving gear and a transmission gear, the present utility model drives a one-way release ratchet through the transmission gear, driving the transmission screw rod to move up and down, so that the supporting pad can contact the ground or disengage from the ground. An adjusting spring is also provided above the transmission gear to enable adjustment of the driving distance of the transmission screw rod. This structure is small and can be installed under tools such as AGVs. When the AGV is not working, the supporting pad at the bottom of the transmission screw rod contacts the ground downward to play a supporting role. When the AGV needs to move for work, the supporting pad can move upward and disengage from the ground. In addition to being applicable to AGVs, it can also be used at the bottom of other working platforms. This structure has a wide range of applications, is ingeniously designed, and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the present utility model, the following will briefly introduce the drawings required in the present utility model. It should be understood that the following drawings only show some embodiments of the present utility model and should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other relevant drawings can also be obtained based on these drawings.

[0014] Figure 1 Structural schematic diagram of the lifting support leg provided by the present utility model Figure 1 ;

[0015] Figure 2 Structural schematic diagram of the lifting support leg provided by the present utility model Figure 2 ;

[0016] Figure 3 Structural schematic diagram of the lifting support leg provided by the present utility model Figure 3 ;

[0017] ICON:

[0018] 1 - Driving gear, 2 - Transmission gear, 3 - One-way release ratchet, 31 - Upper ratchet, 32 - Lower ratchet, 4 - Transmission screw rod, 5 - Installation nut plate, 6 - Supporting pad, 7 - Fixed shaft, 8 - Adjusting spring, 9 - Locking nut, 10 - Driving motor, 11 - Installation plate, 12 - Fixed adjustment seat. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following will describe the technical solutions in the present utility model in conjunction with the drawings in the present utility model.

[0020] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of the present utility model, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0021] Please see Figures 1 to 3 ,

[0022] The utility model provides a lifting support leg. In the prior art, the lifting support leg has poor flexibility during operation, weak auxiliary ability, and a high error rate during adjustment of lifting. In order to solve the above technical problems, the utility model sets a new lifting support leg structure to achieve the purpose of improving flexibility and auxiliary ability and reducing the error rate during use.

[0023] As shown in the figure, the lifting support leg mainly includes a driving gear 1, and a transmission gear 2 is meshed through the driving gear 1. A one-way tripping ratchet 3 is connected to the bottom of the transmission gear 2. As shown in the figure, the one-way tripping ratchet 3 includes two parts, specifically an upper ratchet 31 and a lower ratchet 32. The upper ratchet 31 is directly fixedly connected to the transmission gear 2, and the lower ratchet 32 ​​is connected to the upper ratchet 31 by a one-way bite. As shown in the figure, the end faces of the joints of the upper ratchet 31 and the lower ratchet 32 ​​are set to a mutually bite-engaged structure, so that the upper ratchet 31 can be engaged with the lower ratchet 32 ​​for transmission or separated from the lower ratchet 32 ​​under the drive of the transmission. Specifically, when the upper ratchet 31 rotates counterclockwise, it engages with the lower ratchet 32 ​​and rotates counterclockwise in the same direction. When the upper ratchet 31 rotates clockwise, the lower ratchet 32 ​​rotates clockwise in the same direction.

[0024] As shown in the figure, a transmission screw 4 is also connected to the bottom of the one-way release ratchet 3, and a support pad 6 is arranged at the bottom of the transmission screw 4, which can contact the ground to play a supporting role. In addition, a mounting nut plate 5 is also arranged on the transmission screw 4, through which the nut plate 5 can be fixedly connected to the bottom of the AGV trolley, and can also be connected to the bottom of other mobile platforms. In order to make the structure clearer, it is further explained that the transmission screw 4 is transmission-connected with the lower ratchet 32, and the lower ratchet 32 ​​is sleeved on the end of the transmission screw 4. When the upper ratchet 31 rotates counterclockwise, the engaging lower ratchet 32 ​​rotates counterclockwise in the same direction and is transmitted to the transmission screw 4, so that the transmission screw 4 gradually moves upward, and the support pad 6 at the bottom of the transmission screw 4 also gradually moves upward, thereby achieving the purpose of leaving the ground. Conversely, when the upper ratchet 31 rotates clockwise, the lower ratchet 32 ​​also rotates clockwise, and the transmission screw 4 gradually moves downward, so that the support pad 6 at the bottom of the transmission screw 4 moves downward until it contacts the ground to play a supporting role.

[0025] In order to better control the up-and-down movement of the transmission lead screw 4, a fixed shaft 7 is further provided above the transmission gear 2, an adjusting spring 8 is sleeved on the fixed shaft 7, and a locking nut 9 is provided at the top of the fixed shaft 7. When the support pad 6 contacts the ground, an upward reaction force will be generated on the adjusting spring 8 by the transmission lead screw 4. When the transmission gear 2 continues to rotate, the adjusting spring 8 will be compressed. After the adjusting spring 8 is compressed to a certain extent, it will drive the upper ratchet 31 upward, and then the upper ratchet 31 and the lower ratchet 32 will be separated. In addition, the compression ratio of the adjusting spring 8 can be adjusted by the locking nut 9, so as to control the torque required for the entire support leg to finally contact the ground.

[0026] In addition to the above structure, the present utility model is also provided with a mounting plate 11. As shown in the figure, a driving gear 1, a transmission gear 2 and a one-way release ratchet 3 are mounted above the mounting plate 11, and the transmission lead screw 4 is arranged below the mounting plate 11. In order to control the lifting, a driving motor 10 is also provided. The driving gear 1 is connected to the output end of the driving motor 10. During the installation process, in order to rotate more coordinately, a fixed adjusting seat 12 is also provided. The fixed adjusting seat 12 is arranged between the driving gear 1 and the mounting plate 11 to make the driving gear 1 parallel to the transmission gear 2.

[0027] The above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of changes or substitutions, which should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.

Claims

1. A lifting support leg, characterized in that: The invention comprises a driving gear (1), wherein the driving gear (1) is meshed with a transmission gear (2), the bottom of the transmission gear (2) is connected with a one-way release ratchet (3), the lower end of the one-way release ratchet (3) is connected with a transmission screw (4), a mounting nut plate (5) is sleeved on the transmission screw (4), a support pad (6) is arranged at the bottom of the transmission screw (4), and the one-way release ratchet (3) can drive the transmission screw (4) to move up and down, so that the support pad (6) can be raised and lowered.

2. The lifting support leg according to claim 1, characterized in that: The one-way release ratchet (3) comprises an upper ratchet (31) and a lower ratchet (32), and the upper ratchet (31) and the lower ratchet (32) are engaged with each other in one direction.

3. The lifting support leg according to claim 2, characterized in that: A fixed shaft (7) is also arranged above the transmission gear (2), an adjusting spring (8) is sleeved on the fixed shaft (7), and a locking nut (9) is arranged on the top of the fixed shaft (7).

4. The lifting support leg according to claim 3, characterized in that: The driving gear (1) is connected to the output shaft of the driving motor (10).

5. The lifting support leg according to claim 4, characterized in that: It also comprises a mounting plate (11), wherein the driving gear (1), the transmission gear (2) and the one-way release ratchet (3) are arranged above the mounting plate (11), and the transmission screw (4) and the driving motor (10) are arranged below the mounting plate (11).

6. The lifting support leg according to claim 5, characterized in that: A fixed adjustment seat (12) is also provided between the driving gear (1) and the mounting plate (11) to make the driving gear (1) parallel to the transmission gear (2) so that the driving gear (1) and the transmission gear (2) are meshed.

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