Landing leg crank stabilizing mechanism of low flatbed semitrailer

Abstract

The utility model discloses a landing leg crank stabilizing mechanism of a low flatbed semitrailer, which comprises a fixing plate, a fixing cavity is arranged in the fixing plate, a supporting rod is arranged on the lower inner wall of the fixing cavity in a sliding mode, and the supporting rod penetrates through the lower inner wall of the fixing cavity and extends out of the outer side of the fixing plate. An electric crank is fixedly connected to the top end of the fixing plate, a rotating rod is fixedly connected to the output end of the electric crank, the rotating rod penetrates through the upper inner wall of the fixing cavity and extends into the fixing cavity, and the supporting rod is arranged on the outer side of the rotating rod in a threaded and sleeving mode. According to the utility model, through the clamping of the fixed clamping groove and the fixed clamping block, the angle of the supporting rod can be adjusted, the supporting rod can be fixed at the same time, and the elastic force of the connecting spring is utilized to prevent the connecting clamping block from being separated from the fixed clamping groove when the connecting clamping block is not adjusted, so that the supporting leg and the semitrailer are fixed more firmly, and the electric crank is used more stably; the use of the device is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of a leg crank stabilizing mechanism, in particular to a leg crank stabilizing mechanism of a low-bed semi-trailer. Background Art

[0002] A semitrailer is a trailer equipped with a coupling device that can transmit horizontal and vertical forces to the tractor. After the semitrailer is separated from the tractor, support legs are required to support the semitrailer to avoid damage to the semitrailer.

[0003] When the existing outrigger crank handle stabilizing mechanism of a low-bed semi-trailer is in use, the crank handle is not stable enough due to insufficient fixation of the supporting legs and the semi-trailer, which makes the adjustment of the outriggers easily affected, which is not conducive to the use of the device. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, such as: due to insufficient fixation of the supporting legs and the semi-trailer, the crank handle is not stable enough when in use, which makes the adjustment of the supporting legs easily affected, which is not conducive to the use of the device, and a supporting leg crank handle stabilizing mechanism for a low-bed semi-trailer is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A leg crank stabilization mechanism for a low-bed semi-trailer comprises a fixing plate, a fixing cavity is defined inside the fixing plate, a support rod is slidably arranged on the lower inner wall of the fixing cavity, the support rod penetrates the lower inner wall of the fixing cavity and extends to the outer side of the fixing plate, an electric crank is fixedly connected to the top end of the fixing plate, a rotating rod is fixedly connected to the output end of the electric crank, the rotating rod penetrates the upper inner wall of the fixing cavity and extends to the interior of the fixing cavity, the support rod is threadedly sleeved on the outer side of the rotating rod, a connecting rod is fixedly connected to one side wall of the fixing plate, a mounting plate is rotatably connected to the side wall of the connecting rod away from the fixing plate, and an adjustment structure is arranged on the mounting plate.

[0007] Preferably, the adjustment structure includes an adjustment cavity opened inside the connecting rod, the inner side of the adjustment cavity is slidably connected with an adjustment rod, the adjustment rod passes through the inner wall of the adjustment cavity and the side wall of the mounting plate and extends to the inner side of the mounting plate, one end of the adjustment rod located on the inner side of the mounting plate is fixedly connected to the connecting plate, a plurality of fixed blocks are fixedly connected to the side wall of the connecting plate, two groups of fixed slots matching each fixed block are opened on the mounting plate, and the two groups of fixed slots are arranged perpendicular to each other.

[0008] Preferably, a connecting spring is fixedly connected to a side wall of the adjusting rod away from the connecting plate, and one end of the connecting spring away from the adjusting rod is fixedly connected to the inner wall of the adjusting cavity.

[0009] Preferably, a plurality of connecting bolts are arranged on the side wall of the mounting plate, and each of the connecting bolts penetrates the mounting plate.

[0010] Preferably, a fixed shell wrapping the electric crank is disposed on the outer side thereof, and the bottom end of the fixed shell is fixedly connected to the top end of the fixed plate.

[0011] Preferably, the bottom end of the support rod is fixedly connected to a fixed bottom plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are: through the fixed slot and the fixed block, the support rod can be fixed while the angle of the support rod is adjusted, and at the same time, the elastic force of the connecting spring is utilized to prevent the connecting block from being separated from the fixed slot when not adjusted, so that the fixation of the support leg and the semi-trailer is more firmly made, the use of the electric crank is more stable, and it is conducive to the use of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a three-dimensional structural diagram of an outrigger crank handle stabilizing mechanism of a low-bed semi-trailer proposed by the utility model;

[0014] Figure 2 A schematic diagram of the side view of the three-dimensional structure of the outrigger crank stabilizing mechanism of a low-bed semi-trailer proposed by the utility model;

[0015] Figure 3 The utility model is a structural schematic diagram of an outrigger crank stabilizing mechanism for a low-bed semi-trailer.

[0016] In the figure: 1 fixed plate, 2 fixed cavity, 3 support rod, 4 fixed bottom plate, 5 electric crank, 6 rotating rod, 7 fixed shell, 8 connecting rod, 9 mounting plate, 10 adjustment cavity, 11 adjustment rod, 12 connecting plate, 13 fixed card slot, 14 fixed card block, 15 connecting spring, 16 connecting bolt. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0018] Reference Figure 1-Figure 3, a leg crank stabilizing mechanism of a low-bed semi-trailer, comprising a fixing plate 1, a fixing cavity 2 is opened inside the fixing plate 1, a support rod 3 is slidably arranged on the lower inner wall of the fixing cavity 2, and the support rod 3 penetrates the lower inner wall of the fixing cavity 2 and extends to the outer side of the fixing plate 1, an electric crank 5 is fixedly connected to the top of the fixing plate 1, a rotating rod 6 is fixedly connected to the output end of the electric crank 5, the rotating rod 6 penetrates the upper inner wall of the fixing cavity 2 and extends to the inner side of the fixing cavity 2, and the support rod 3 is threadedly sleeved on the outer side of the rotating rod 6, a connecting rod 8 is fixedly connected to one side wall of the fixing plate 1, a mounting plate 9 is rotatably connected to the connecting rod 8 on the side wall away from the fixing plate 1, and an adjusting structure is arranged on the mounting plate 9, through which the supporting rod 3 is perpendicular to the ground to support the semi-trailer, the electric crank 5 is started, and the output end of the electric crank 5 drives the rotating rod 6 to rotate, because the supporting rod 3 cannot rotate, the supporting rod 3 will move under the action of the thread, thereby adjusting the length of the supporting rod 3, so as to support the semi-trailer;

[0019] The adjustment structure includes an adjustment cavity 10 provided inside the connecting rod 8, an adjustment rod 11 is slidably connected to the inner side of the adjustment cavity 10, the adjustment rod 11 penetrates the inner side wall of the adjustment cavity 10 and the side wall of the mounting plate 9 and extends to the inner side of the mounting plate 9, one end of the adjustment rod 11 located on the inner side of the mounting plate 9 is fixedly connected to a connecting plate 12, a plurality of fixed card blocks 14 are fixedly connected to the side wall of the connecting plate 12, two groups of fixed card grooves 13 matching each fixed card block 14 are provided on the mounting plate 9, and the two groups of fixed card grooves 13 are arranged perpendicular to each other, the connecting plate 12 is moved to move outward, the fixed card block 14 is moved to the outside of the fixed card groove 13, and the connecting plate 12 is no longer stuck, so that the connecting rod 8, the fixed plate 1 and the support rod 3 can be rotated to support the support rod 3;

[0020] A connecting spring 15 is fixedly connected to a side wall of the adjusting rod 11 away from the connecting plate 12. One end of the connecting spring 15 away from the adjusting rod 11 is fixedly connected to the inner wall of the adjusting cavity 10. The elastic force of the connecting spring 15 causes the adjusting rod 11 to move toward the inner side of the adjusting cavity 10, so that the fixed block 14 on the connecting plate 12 is stuck in the fixed slot 13.

[0021] A plurality of connecting bolts 16 are arranged on the side wall of the mounting plate 9, and each connecting bolt 16 is arranged through the mounting plate 9, and the mounting plate 9 and the entire device are fixed to the semi-trailer through the connecting bolts 16; a fixed shell 7 is arranged on the outer side of the electric crank 5 to wrap it, and the bottom end of the fixed shell 7 is fixedly connected to the top end of the fixing plate 1, and the fixed shell 7 plays a role in protecting the electric crank 5; the bottom end of the support rod 3 is fixedly connected to the fixed bottom plate 4, so that the support of the support rod 3 is more stable.

[0022] When the lever 12 is in motion, the locking cam 14 is released and the locking cam 14 is released, the locking cam 14 is released and the locking cam 14 is released, the locking cam 14 is released and the locking cam 14 is released.

[0023] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A low-bed semi-trailer outrigger crank stabilizing mechanism, comprising a fixing plate (1), characterized in that: The fixing plate (1) is provided with a fixing cavity (2) inside, a support rod (3) is slidably arranged on the lower inner wall of the fixing cavity (2), and the support rod (3) penetrates the lower inner wall of the fixing cavity (2) and extends to the outer side of the fixing plate (1), the top end of the fixing plate (1) is fixedly connected to an electric crank (5), the output end of the electric crank (5) is fixedly connected to a rotating rod (6), the rotating rod (6) penetrates the upper inner wall of the fixing cavity (2) and extends to the inside of the fixing cavity (2), and the support rod (3) is threadedly sleeved on the outer side of the rotating rod (6), a connecting rod (8) is fixedly connected to one side wall of the fixing plate (1), and a mounting plate (9) is rotatably connected to the side wall of the connecting rod (8) away from the fixing plate (1), and an adjustment structure is arranged on the mounting plate (9).

2. The outrigger crank stabilizing mechanism of a low-bed semi-trailer according to claim 1, characterized in that: The adjustment structure comprises an adjustment cavity (10) provided inside the connecting rod (8); an adjustment rod (11) is slidably connected to the inner side of the adjustment cavity (10); the adjustment rod (11) penetrates the inner side wall of the adjustment cavity (10) and the side wall of the mounting plate (9) and extends to the inner side of the mounting plate (9); one end of the adjustment rod (11) located inside the mounting plate (9) is fixedly connected to a connecting plate (12); a plurality of fixed card blocks (14) are fixedly connected to the side wall of the connecting plate (12); two groups of fixed card slots (13) matching each fixed card block (14) are provided on the mounting plate (9), and the two groups of fixed card slots (13) are arranged perpendicular to each other.

3. The outrigger crank stabilizing mechanism of a low-bed semi-trailer according to claim 2, characterized in that: A connecting spring (15) is fixedly connected to a side wall of the adjusting rod (11) away from the connecting plate (12); one end of the connecting spring (15) away from the adjusting rod (11) is fixedly connected to the inner side wall of the adjusting cavity (10).

4. The outrigger crank stabilizing mechanism of a low-bed semi-trailer according to claim 1, characterized in that: A plurality of connecting bolts (16) are arranged on the side wall of the mounting plate (9), and each of the connecting bolts (16) is arranged to penetrate the mounting plate (9).

5. The outrigger crank stabilizing mechanism of a low-bed semi-trailer according to claim 1, characterized in that: A fixed shell (7) is provided on the outer side of the electric crank (5) to wrap the electric crank (5), and the bottom end of the fixed shell (7) is fixedly connected to the top end of the fixed plate (1).

6. The outrigger crank stabilizing mechanism of a low-bed semi-trailer according to claim 1, characterized in that: The bottom end of the support rod (3) is fixedly connected to a fixed bottom plate (4).

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