CN214985283U - Adjustable linkage supporting leg of semitrailer - Google Patents

Abstract

The utility model discloses an adjustable linkage landing leg of semitrailer, including the mounting frame plate, set up two bilateral symmetry distribution's receipts on the mounting frame plate and put mouthful, two receive and put between the mouth position and seted up the expansion mouth, two it is connected with the pivot all to rotate between the inner wall around receiving and releasing mouthful, two all fixedly in the pivot has cup jointed the supporting leg, it is connected with two-way threaded rod to rotate jointly between the inner wall of the expansion mouth left and right sides, two the movable block that two bilateral symmetry set up has been cup jointed to the screw thread on the two-way threaded rod the first U type piece of the equal fixedly connected with of movable block lower extreme, two the equal fixedly connected with second U type piece in the relative one side of supporting leg is adjacent it is connected with the connecting rod to rotate jointly between first U type piece and the second U type piece. The utility model discloses can carry out the supporting state and fold up the state regulation conversion work to two landing legs of semi-trailer, the linkage nature is high, and adapts to different topography.

Description

Adjustable linkage supporting leg of semitrailer

Technical Field

The utility model relates to a semitrailer technical field especially relates to an adjustable linkage landing leg of semitrailer.

Background

The semitrailer is common transport vehicle in the life, when the semitrailer does not use, often need use the landing leg to support to guarantee that it is stable, current semitrailer landing leg is mostly two, for convenient receiving and releasing, control through two cylinders mostly, and do not have linkage between two supporting legs, when a cylinder breaks down and leads to and another cylinder can't go up and down in step, can cause the semitrailer slope, the risk of taking place to turn on one's side or the automobile body damage.

Therefore, an adjustable linkage supporting leg of the semitrailer is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing an adjustable linkage support leg of a semitrailer.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an adjustable linkage landing leg of semitrailer, includes the installation frame plate, set up two bilateral symmetry's receipts on the installation frame plate and put the mouth, two receive and put the position between the mouth and seted up the movable mouthful, two all rotate between the inner wall around receiving and releasing mouthful and be connected with the pivot, two all fixed the supporting leg that has cup jointed in the pivot, it is connected with two-way threaded rod to rotate jointly between the inner wall of the movable mouthful left and right sides, two the movable block that two bilateral symmetry set up has been cup jointed to the screw thread on the two-way threaded rod, two the equal fixedly connected with first U type piece of movable block lower extreme, two the equal fixedly connected with second U type piece in the relative one side of supporting leg, it is adjacent rotate jointly between first U type piece and the second U type piece is connected with the connecting rod.

Preferably, two baffles of common fixedly connected with between inner wall around the expansion opening, two the baffle is located the expansion opening intermediate position, two-way threaded rod runs through two baffles, on the two-way threaded rod and for the fixed cover to have connect the worm wheel between two baffles, the fixed first motor that inlays that is equipped with on the mounting plate, the fixed worm that has connect of output of first motor, worm and worm wheel meshing.

Preferably, the lower ends of the two support legs are respectively provided with a movable groove, the movable grooves are internally and slidably connected with a sliding plate, the lower ends of the sliding plates are fixedly connected with support blocks, the lower ends of the support blocks extend out of the movable grooves and are fixedly connected with support plates, a movable plate is slidably connected in the movable grooves and above the sliding plates, and a spring is fixedly connected between the movable plate and the sliding plates together.

Preferably, the movable slot, the sliding plate and the movable plate are all rectangular structures.

Preferably, two in the supporting leg and all fixedly embedded in activity groove top position be equipped with the second motor, the output fixedly connected with threaded rod of second motor, the threaded rod lower extreme extends to in the activity groove and the screw thread runs through the movable plate setting.

Preferably, the center positions of the upper ends of the two sliding plates are both provided with notches.

Preferably, the lower ends of the two supporting plates are provided with anti-skidding teeth.

Compared with the prior art, the device has the advantages that:

1. the first motor drives the bidirectional threaded rod to rotate through the worm gear and the worm, so that the two moving blocks move relatively on the bidirectional threaded rod, the corresponding supporting legs are pulled by the connecting rods to rotate the rotating shafts, and the supporting legs are adjusted and converted from the supporting state and the folding state.

2. When the two second motors work, the threaded rods can be driven to rotate, then the movable plate is pushed to move in the movable groove, and the support plate, the support block and the sliding plate are driven to move together under the action of the springs, so that the height of the support legs is adjusted to adapt to different terrains.

To sum up, the utility model discloses can carry out the supporting state and fold up the state regulation conversion work to two landing legs of semi-trailer, the linkage is high, and adapts to different topography.

Drawings

Fig. 1 is a front perspective view of an adjustable linkage leg of a semitrailer according to the present invention;

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;

fig. 3 is the utility model provides a structure stereogram of supporting leg in adjustable linkage landing leg of semitrailer.

In the figure: the device comprises a mounting frame plate 1, a retracting opening 2, a moving opening 3, a rotating shaft 4, supporting legs 5, a bidirectional threaded rod 6, a moving block 7, a first U-shaped block 8, a second U-shaped block 9, a connecting rod 10, a baffle 11, a worm wheel 12, a first motor 13, a worm 14, a movable groove 15, a sliding plate 16, a supporting block 17, a limiting frame plate 18, a supporting plate 19, a moving plate 20, a spring 21, a threaded rod 22, a second motor 23 and anti-skidding teeth 24.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, an adjustable linkage supporting leg of semitrailer, including mounting frame plate 1, set up two bilateral symmetry's receipts and release mouth 2 on the mounting frame plate 1, receive and release mouth 2 and make things convenient for supporting leg 5 to rotate, the position has seted up the expansion mouth 3 between two receipts and release mouths 2, it is connected with pivot 4 all to rotate between the inner wall around two receipts and release mouths 2, supporting leg 5 has all fixedly cup jointed on two pivot 4, it is connected with two-way threaded rod 6 to rotate jointly between the inner wall of the 3 left and right sides of expansion mouth, two bilateral symmetry's movable block 7 that set up has been cup jointed to the screw thread on two-way threaded rod 6, the equal fixedly connected with first U type piece 8 of two movable block 7 lower extremes, the equal fixedly connected with second U type piece 9 in the relative one side of two supporting legs 5, it is connected with connecting rod 10 to rotate jointly between adjacent first U type piece 8 and the second U type piece 9, accessible connecting rod 10 pulling corresponding supporting leg 5 when movable block 7 moves.

Two baffles 11 are fixedly connected between the front inner wall and the rear inner wall of the movable opening 3, the two baffles 11 are positioned in the middle of the movable opening 3, the bidirectional threaded rod 6 penetrates through the two baffles 11, a worm wheel 12 is fixedly sleeved on the bidirectional threaded rod 6 between the two baffles 11, a first motor 13 is fixedly embedded on the mounting frame plate 1, a worm 14 is fixedly sleeved at the output end of the first motor 13, the worm 14 is meshed with the worm wheel 12, and the first motor 13 can drive the bidirectional threaded rod 6 to rotate through the transmission of the worm wheel 12 and the worm 14.

The movable groove 15 has all been seted up to two supporting legs 5 lower extreme, sliding connection has sliding plate 16 in the movable groove 15, sliding plate 16 lower extreme fixedly connected with supporting shoe 17, supporting shoe 17 lower extreme extends movable groove 15 and fixedly connected with backup pad 19, in the movable groove 15 and at sliding plate 16 top position sliding connection have movable plate 20, common fixedly connected with spring 21 between movable plate 20 and the sliding plate 16, the impact force that produces when backup pad 19 contact ground can be cushioned to spring 21, movable groove 15, sliding plate 16 and movable plate 20 are the rectangle structure, avoid taking place to rotate.

In two supporting legs 5 and in the activity groove 15 top position all fixed the inlay be equipped with second motor 23, the output fixedly connected with threaded rod 22 of second motor 23, threaded rod 22 lower extreme extends to in the activity groove 15 and the screw thread runs through movable plate 20 and sets up, and when second motor 23 rotated, can drive movable plate 20 and move down, then adjust the position of backup pad 19, satisfy the support work of different topography then.

The central positions of the upper ends of the two sliding plates 16 are provided with notches, so that the threaded rods 22 can be inserted into the notches when the springs 21 are compressed, and collision is avoided.

The lower ends of the two supporting plates 19 are provided with anti-skid teeth 24, so that the anti-skid performance is improved.

The utility model discloses the theory of operation as follows:

the utility model is arranged on the semitrailer through the mounting frame plate 1, the first motor 13 can drive the bidirectional threaded rod 6 to rotate through the transmission of the worm wheel 12 and the worm 14, thereby changing the positions of the two moving blocks 7, and the two moving blocks 7 are always symmetrically arranged about the middle position of the bidirectional threaded rod 6, and then when the two moving blocks 7 move, under the connecting action of the connecting rod 10, the supporting leg 5 is pulled and rotates in an arc shape around the rotating shaft 4, when the two moving blocks 7 move to the maximum distance, the two supporting legs 5 are in a vertical state, and then the supporting work can be carried out, when the two moving blocks 7 move to the minimum interval, the two supporting legs 5 all rotate upwards and are arranged close to the mounting frame plate 1 to be in a suspended state, folding work is completed, the two supporting legs 5 are linked to move, the operation state is synchronous, and therefore the stability of the supporting is guaranteed.

When the two second motors 23 work, the threaded rods 22 can be driven to rotate, and then the moving plate 20 is pushed to move in the moving groove 15, and the supporting plate 19, the supporting block 17 and the sliding plate 16 are driven to move together under the action of the springs 21, so that the height of the supporting legs 5 can be adjusted to adapt to different terrains.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (7)

1. The utility model provides an adjustable linkage landing leg of semitrailer, includes mounting frame plate (1), its characterized in that, set up two bilateral symmetry distribution's receipts and release mouth (2) on mounting frame plate (1), two movable mouthful (3) have been seted up to the position between receipts and release mouth (2), two all rotate between the inner wall around receipts and release mouth (2) and be connected with pivot (4), two all fixedly cup jointed supporting leg (5) on pivot (4), rotate jointly between the inner wall of the left and right sides of movable mouthful (3) and be connected with two-way threaded rod (6), two movable block (7) that bilateral symmetry set up are cup jointed to the screw thread on two-way threaded rod (6), two the equal fixedly connected with of movable block (7) lower extreme first U type piece (8), two the equal fixedly connected with second U type piece (9) in the relative one side of supporting leg (5), it is adjacent rotate jointly between first U type piece (8) and second U type piece (9) and be connected with the connecting rod (8) 10).

2. The adjustable linkage supporting leg of a semitrailer according to claim 1, characterized in that two baffles (11) are fixedly connected between the front inner wall and the rear inner wall of the movable opening (3) together, the two baffles (11) are located in the middle of the movable opening (3), the two-way threaded rod (6) penetrates through the two baffles (11), a worm wheel (12) is fixedly sleeved on the two-way threaded rod (6) and between the two baffles (11), a first motor (13) is fixedly embedded on the mounting frame plate (1), a worm (14) is fixedly sleeved on the output end of the first motor (13), and the worm (14) is meshed with the worm wheel (12).

3. The adjustable linkage leg of a semitrailer according to claim 1, characterized in that the lower ends of the two support legs (5) are respectively provided with a movable groove (15), a sliding plate (16) is connected in the movable groove (15) in a sliding manner, the lower end of the sliding plate (16) is fixedly connected with a support block (17), the lower end of the support block (17) extends out of the movable groove (15) and is fixedly connected with a support plate (19), a movable plate (20) is connected in the movable groove (15) in a sliding manner at a position above the sliding plate (16), and a spring (21) is fixedly connected between the movable plate (20) and the sliding plate (16).

4. The adjustable linkage leg of a semitrailer according to claim 3, characterized in that the movable slot (15), the sliding plate (16) and the moving plate (20) are all rectangular structures.

5. The adjustable linkage supporting leg of a semitrailer according to claim 3, characterized in that a second motor (23) is fixedly embedded in each of the two supporting legs (5) at a position above the movable groove (15), a threaded rod (22) is fixedly connected to the output end of the second motor (23), the lower end of the threaded rod (22) extends into the movable groove (15), and the threads penetrate through the movable plate (20).

6. The adjustable linkage leg of a semitrailer according to claim 3, characterized in that the sliding plates (16) are provided with notches at the central positions of the upper ends thereof.

7. A semitrailer adjustable linkage leg according to claim 3, characterised in that the lower ends of both support plates (19) are provided with anti-slip teeth (24).

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