CN214396705U

CN214396705U - Semitrailer landing leg structure convenient to adjust

Info

Publication number: CN214396705U
Application number: CN202120224064.5U
Authority: CN
Inventors: 朱其安; 周爱斌; 高一恺
Original assignee: Yang Zhou Vulcan Machinery Manufacturing Co ltd
Current assignee: Yang Zhou Vulcan Machinery Manufacturing Co ltd
Priority date: 2021-01-27
Filing date: 2021-01-27
Publication date: 2021-10-15
Anticipated expiration: 2031-01-27

Abstract

The utility model relates to a semitrailer technical field especially relates to a semitrailer landing leg structure convenient to adjust, including shock attenuation chamber and bottom plate, the inner wall sliding fit in shock attenuation chamber has slider and pillar, and the middle part of the boss up end that the middle part of bottom plate up end was established is seted up flutedly, and the installation is fixed with the bulb bearing in the recess, and the middle part of bulb bearing inserts and establishes the one end that is fixed with the pillar, and the middle part of pillar is inserted and is established and be fixed with connecting block and arc connector, and the up end equidistance of bottom plate is equipped with the telescopic link fixed block, and the up end of telescopic link fixed block is equipped with the telescopic link. The utility model discloses in, this semitrailer leg structure convenient to adjust not only can make the bottom plate cover more stable on the ground that has the grit when practical, communicates oil pipe on the shock attenuation chamber simultaneously, and the later stage of being convenient for carries out the oiling to the shock attenuation intracavity wall and maintains, has improved this semitrailer leg structure's life greatly.

Description

Semitrailer landing leg structure convenient to adjust

Technical Field

The utility model relates to a semitrailer technical field especially relates to a semitrailer landing leg structure convenient to adjust.

Background

In order to realize the traction of the semi-trailer, a specific axle of the semi-trailer is positioned at the back of the center of the frame, the front end of the semi-trailer is provided with a coupling device connected with the tractor, the structural form that when the semi-trailer is not connected with the tractor, the support of the front end of the semi-trailer is realized by putting down and stretching out the support legs is determined, if unstable factors such as gravels exist on the ground covered by a bottom plate of the semi-trailer, the potential safety hazard can exist, meanwhile, the later maintenance is inconvenient, and therefore, the semi-trailer support leg structure convenient to adjust is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a semitrailer landing leg structure convenient to adjust.

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

the utility model provides a semitrailer landing leg structure convenient to adjust, including shock attenuation chamber and bottom plate, the inner wall sliding fit in shock attenuation chamber has the slider, the lower terminal surface of slider is equipped with the pillar perpendicularly, and the lower terminal surface of pillar extends to the outside in shock attenuation chamber, the middle part of bottom plate up end is equipped with the boss, the middle part of boss up end is seted up flutedly, the installation is fixed with the bulb bearing in the recess, and the middle part of bulb bearing inserts the one end of establishing and being fixed with the pillar, the middle part of pillar is inserted and is established and be fixed with the connecting block, the outside equidistance of connecting block is equipped with the arc connector, the up end equidistance of bottom plate is equipped with the telescopic link fixed block, the up end of telescopic link fixed block is equipped with the telescopic link, and welded fastening is passed through with to the up end of telescopic part and the one end of arc connector.

Preferably, the upper end surface of the damping cavity is horizontally provided with a mounting plate, triangular reinforcing ribs are symmetrically welded between the lower end surface of the mounting plate and the outer side of the damping cavity, and bolts are symmetrically screwed and fixed on two sides of the mounting plate.

Preferably, a plurality of convex strips are arranged on the lower end face of the bottom plate at equal intervals.

Preferably, the inside of shock attenuation chamber is equipped with first spring perpendicularly, and first spring is located between the up end of the lower terminal surface of the inside roof of shock attenuation chamber and slider.

Preferably, the outer side of the telescopic part of the telescopic rod is sleeved with a second spring, and the second spring is located between the lower end face of the arc-shaped connector and the upper end face of the telescopic rod fixing part.

Preferably, the telescopic rod is installed in an inclined mode, and the included angle between the telescopic rod and the horizontal plane is 50-60 degrees.

Preferably, the upper part of one side of the damping cavity is communicated with an L-shaped oil pipe, and one end of the vertical part of the L-shaped oil pipe is screwed and fixed with a spiral cover.

The utility model has the advantages that:

the utility model discloses in, this semitrailer leg structure convenient to adjust not only can make the bottom plate cover more stable on the ground that has the grit when practical, communicates oil pipe on the shock attenuation chamber simultaneously, and the later stage of being convenient for carries out the oiling to the shock attenuation intracavity wall and maintains, has improved this semitrailer leg structure's life greatly.

Drawings

Fig. 1 is a schematic structural view of a semitrailer leg structure convenient to adjust in a stretching state;

fig. 2 is the utility model provides a semitrailer landing leg structure convenient to adjust is main when compression state and looks at the schematic diagram.

In the figure: 1 shock attenuation chamber, 2 mounting panels, 3 triangle-shaped strengthening ribs, 4 bolts, 5L shape oil pipe, 6 sliders, 7 pillars, 8 bosss, 9 bottom plates, 10 sand grips, 11 telescopic link fixed blocks, 12 connecting blocks, 13 telescopic links, 14 arc connectors, 151 first spring, 152 second spring, 16 ball bearings.

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. 1-2, the semitrailer landing leg structure convenient to adjust comprises a damping cavity 1 and a bottom plate 9, wherein an installation plate 2 is horizontally arranged on the upper end surface of the damping cavity 1, triangular reinforcing ribs 3 are symmetrically welded between the lower end surface of the installation plate 2 and the outer side of the damping cavity 1, and bolts 4 are symmetrically screwed and fixed on two sides of the installation plate 2, so that an operator can be better and conveniently installed on the semitrailer landing leg structure;

the lower end face of the bottom plate 9 is equidistantly provided with a plurality of convex strips 10, and the convex strips 10 can increase the friction force when the bottom plate 9 is contacted with the ground, so that the bottom plate 9 can be more stably covered on the ground with gravels;

the inner wall of the damping cavity 1 is in sliding fit with a sliding block 6, a strut 7 is vertically arranged on the lower end face of the sliding block 6, the lower end face of the strut 7 extends to the outer side of the damping cavity 1, a first spring 151 is vertically arranged inside the damping cavity 1, the first spring 151 is located between the lower end face of the top wall inside the damping cavity 1 and the upper end face of the sliding block 6, and the first spring 151 has good elastic potential energy and can play a good role in buffering and damping when in use;

the upper part of one side of the damping cavity 1 is communicated with an L-shaped oil pipe 5, and one end of the vertical part of the L-shaped oil pipe 5 is screwed and fixed with a spiral cover, so that an operator can conveniently oil the inside of the damping cavity 1, the support leg structure of the semitrailer can be conveniently maintained, and the service life of the semitrailer is greatly prolonged;

a boss 8 is arranged in the middle of the upper end face of the bottom plate 9, a groove is formed in the middle of the upper end face of the boss 8, a ball bearing 16 is fixedly installed in the groove, and one end of a support 7 is inserted and fixed in the middle of the ball bearing 16;

a connecting block 12 is fixedly inserted in the middle of the supporting column 7, arc-shaped connectors 14 are equidistantly arranged on the outer side of the connecting block 12, telescopic rod fixing blocks 11 are equidistantly arranged on the upper end face of the bottom plate 9, telescopic rods 13 are arranged on the upper end face of the telescopic rod fixing blocks 11, the upper end face of the telescopic part of each telescopic rod 13 is fixedly welded with one end of each arc-shaped connector 14, each telescopic rod 13 is installed in an inclined mode, and the included angle between each telescopic rod 13 and the horizontal plane is 50-60 degrees;

the outside cover of the flexible portion of telescopic link 13 is equipped with second spring 152, and second spring 152 is located between the up end of the lower terminal surface of arc connector 14 and telescopic link 13 fixed part, and second spring 152 has good elastic potential energy, can play fine buffering absorbing effect when using.

In the embodiment, when the semitrailer leg structure is used, an operator firstly installs and fixes the mounting plate 2 of the semitrailer leg structure on a frame of a semitrailer through the bolts 4, the lower end surface of the bottom plate 9 is provided with a plurality of convex strips 10 at equal intervals, and the convex strips 10 can increase the friction force when the bottom plate 9 is contacted with the ground, so that the bottom plate 9 can be more stably covered on the ground with gravels;

the damping cavity 1 is communicated with an L-shaped oil pipe 5, so that an operator can conveniently oil the damping cavity 1, the support leg structure of the semitrailer can be conveniently maintained, and the service life of the semitrailer is greatly prolonged;

furthermore, the first spring 151 and the second spring 152 have good elastic potential energy, and the first spring 151 and the second spring 152 can play a good role in buffering and damping under the mutual action of pressure;

this semitrailer leg structure convenient to adjust not only can make the bottom plate cover more stable on the ground that has the grit when practical, communicates oil pipe on the shock attenuation chamber simultaneously, and the later stage of being convenient for carries out the oiling to the shock attenuation intracavity wall and maintains, has improved this semitrailer leg structure's life greatly.

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

1. A semitrailer landing leg structure convenient to adjust comprises a damping cavity (1) and a bottom plate (9), and is characterized in that a sliding block (6) is arranged on the inner wall of the damping cavity (1) in a sliding fit mode, a supporting column (7) is vertically arranged on the lower end face of the sliding block (6), the lower end face of the supporting column (7) extends to the outer side of the damping cavity (1), a boss (8) is arranged in the middle of the upper end face of the bottom plate (9), a groove is formed in the middle of the upper end face of the boss (8), a ball head bearing (16) is fixedly installed in the groove, one end, fixed with the supporting column (7), of the ball head bearing (16) is inserted in the middle of the supporting column (7), a connecting block (12) is fixedly inserted in the middle of the supporting column (7), arc-shaped connectors (14) are arranged on the outer side of the connecting block (12) at equal intervals, telescopic rod fixing blocks (11) are arranged on the upper end face of the bottom plate (9), a telescopic rod (13) is arranged on the upper end face of each telescopic rod fixing block (11), and the upper end surface of the telescopic part of the telescopic rod (13) is fixed with one end of the arc-shaped connector (14) by welding.

2. The semitrailer landing leg structure convenient to adjust according to claim 1, is characterized in that an installation plate (2) is horizontally arranged on the upper end face of the shock absorption cavity (1), triangular reinforcing ribs (3) are symmetrically welded between the lower end face of the installation plate (2) and the outer side of the shock absorption cavity (1), and bolts (4) are symmetrically screwed and fixed on two sides of the installation plate (2).

3. A semitrailer leg structure convenient to adjust according to claim 1, characterized in that the lower end surface of the bottom plate (9) is provided with a plurality of convex strips (10) at equal intervals.

4. A semitrailer leg structure convenient to adjust according to claim 1, characterized in that the inside of the shock absorption cavity (1) is vertically provided with a first spring (151), and the first spring (151) is located between the lower end surface of the top wall inside the shock absorption cavity (1) and the upper end surface of the sliding block (6).

5. A semitrailer leg structure convenient to adjust according to claim 1, characterized in that the outside of the telescopic part of the telescopic rod (13) is sleeved with a second spring (152), and the second spring (152) is located between the lower end face of the arc-shaped connector (14) and the upper end face of the fixed part of the telescopic rod (13).

6. A semitrailer leg structure convenient to adjust according to claim 1, characterized in that the telescopic rod (13) is installed obliquely, and the included angle between the telescopic rod (13) and the horizontal plane is 50-60 °.

7. A semitrailer leg structure convenient to adjust according to claim 1, characterized in that the upper part of one side of the shock absorption cavity (1) is communicated with an L-shaped oil pipe (5), and one end of the vertical part of the L-shaped oil pipe (5) is screwed and fixed with a screw cap.