CN219236998U

CN219236998U - Semitrailer landing leg structure

Info

Publication number: CN219236998U
Application number: CN202320664777.2U
Authority: CN
Inventors: 张延庆; 许卫勇; 张运全
Original assignee: Hebei Wanli Special Vehicle Manufacturing Co ltd
Current assignee: Hebei Wanli Special Vehicle Manufacturing Co ltd
Priority date: 2023-03-30
Filing date: 2023-03-30
Publication date: 2023-06-23
Anticipated expiration: 2033-03-30

Abstract

The utility model discloses a semitrailer support leg structure, which belongs to the technical field of support legs and particularly relates to a semitrailer support leg structure, which comprises hydraulic legs, auxiliary hydraulic devices, a force application plate, a bottom plate and an anti-abrasion plate, wherein the hydraulic legs are convenient for integral support, the output ends of the hydraulic legs are provided with telescopic legs matched with the telescopic legs of the hydraulic legs, the side walls of the hydraulic legs are provided with the auxiliary hydraulic devices, the output ends of the auxiliary hydraulic devices are provided with telescopic rods I, and the output ends of the telescopic rods I are provided with telescopic rods II.

Description

Semitrailer landing leg structure

Technical Field

The utility model relates to the technical field of supporting legs, in particular to a semitrailer supporting leg structure.

Background

A semitrailer is a trailer in which the axle is placed behind the center of gravity of the vehicle (when the vehicle is evenly loaded) and is equipped with hitch devices that can transfer horizontal and vertical forces to the tractor. The semi-trailer is a three-axle semi-trailer, and the types of the semi-trailer are classified into eleven meter bin semi-trailer, thirteen meter bin semi-trailer, low-bed semi-trailer and the like. Is a heavy transportation vehicle connected with a semitrailer head through a traction pin. Compared with the same type of trucks, the semitrailer has the advantages that the loading capacity can be doubled, the transportation cost is reduced, and the transportation efficiency is improved. The loading part of the flat-plate semitrailer is a flat-plate cargo bed, has a large bearing surface, can be used for loading containers and can also be used for loading common long and large-sized cargoes.

The semitrailer comprises supporting legs, each supporting leg consists of a supporting disc, supporting legs, a transmission mechanism, a speed change mechanism, a transmission rod, a handle and the like, and the supporting legs are arranged at the front end of the semitrailer. When the tractor is disconnected from the semi-trailer, the semi-trailer is supported to park. In order to adapt to the height change of the semi-trailer, the supporting leg is internally provided with a lifting mechanism, so that the connection and disconnection of the semi-trailer and the tractor can be smoothly carried out. The height rise and fall is divided into two speeds. The handle rotates to be high-speed lifting when entering, and is low-speed lifting when being pulled out, and after the supporting disc contacts the ground, the supporting legs bear load, and at the moment, only the low-speed gear can be used for lifting, otherwise, the supporting leg lifting mechanism is damaged.

But in actual use, the semitrailer landing leg is going up and down and makes because the bottom application of force board is the active structure, lacks the spacing mode of effectual cooperation, easily appears rocking or the circumstances of angle dislocation, influences the basis with ground, and the application of force board position is comparatively fixed, lacks buffering, increases the effect that hinders in touching, easily appears sliding and wearing and tearing condition.

Disclosure of Invention

The utility model aims to provide a semitrailer supporting leg structure, which solves the problems that the bottom force application plate is of a movable structure when the semitrailer supporting leg is lifted in the background technology, the condition of shaking or angle dislocation is easy to occur due to the lack of an effective matching limiting mode, the foundation with the ground is affected, the position of the force application plate is relatively fixed, the effects of buffering and resistance increasing are lacked in the process of contact, and the sliding and abrasion conditions are easy to occur.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a semitrailer supporting leg structure comprises a hydraulic leg, an auxiliary hydraulic device, a force application plate, a bottom plate and an abrasion-proof plate;

wherein,,

the hydraulic legs are convenient to integrally support, and telescopic legs matched with the telescopic hydraulic legs are arranged at the output ends of the hydraulic legs;

the side wall of the hydraulic leg is provided with an auxiliary hydraulic device, the output end of the auxiliary hydraulic device is provided with a first telescopic rod, and the output end of the first telescopic rod is provided with a second telescopic rod;

the bottom of the telescopic leg is provided with a force application plate, and the top of the force application plate is welded with a first triangular block and a second triangular block;

the bottom plate is arranged at the bottom of the force application plate, and an inner backing plate is arranged at the top of an inner cavity of the bottom plate;

the anti-wear plate is adhered to the bottom of the bottom plate, and a convex strip is integrally formed at the bottom of the anti-wear plate.

Preferably, the top of the hydraulic leg is provided with a top mounting member, and the side wall of the top mounting member is provided with a mounting peg.

Preferably, the side walls of the two triangular blocks I are provided with pin shafts I penetrating through the telescopic legs.

Preferably, the side walls of the two triangular blocks II are provided with a pin shaft II penetrating through the telescopic rod II.

Preferably, the top integrated into one piece of inner backing plate is connected with the flange, a plurality of between the flange keep in advance the inner backing groove.

Preferably, the side wall of the wear plate is integrally formed and connected with a wing plate.

Compared with the prior art, the utility model has the beneficial effects that: this kind of semitrailer landing leg structure, through the combined application of accessory, set up the hydraulic leg that carries auxiliary hydraulic means, can reach the purpose of cooperation application of force board angle modulation when the flexible leg of hydraulic leg cooperation is flexible, effectively reduce application of force board and rock the probability, spacing effect is better, sets up the bottom plate that carries the inner pad board in the bottom of application of force board simultaneously, can play a buffering, increase the effect that hinders at landing leg and ground support in-process, avoid the contact surface to slide and severely wear, and conveniently change.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following detailed description of the embodiments of the present utility model will be given with reference to the accompanying drawings, which are to be understood as merely some embodiments of the present utility model, and from which other drawings can be obtained by those skilled in the art without inventive faculty. Wherein:

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic diagram of a partial detail of the present utility model;

FIG. 3 is a schematic view of a base plate of the present utility model;

FIG. 4 is an expanded schematic view of the base plate of the present utility model;

FIG. 5 is a schematic view of a wear plate of the present utility model;

in the figure: 100 hydraulic legs, 110 top mounting pieces, 120 mounting bolts, 130 telescopic legs, 200 auxiliary hydraulic devices, 210 telescopic rods I, 220 telescopic rods II, 300 force application plates, 310 triangular blocks I, 320 pin shafts I, 330 triangular blocks II, 340 pin shafts II, 400 bottom plates, 410 inner backing plates, 420 convex plates, 430 inner backing grooves, 500 wear-resisting plates, 510 wing plates and 520 convex strips.

Detailed Description

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The utility model provides a semitrailer supporting leg structure, which is provided with a hydraulic leg carrying an auxiliary hydraulic device, can achieve the aim of adjusting the angle of a force application plate when the hydraulic leg is matched with a telescopic leg to stretch, effectively reduces the shaking probability of the force application plate, has better limiting effect, and simultaneously, the bottom of the force application plate is provided with a bottom plate carrying an inner backing plate, which can play a role of buffering and increasing resistance in the supporting process of the supporting leg and the ground, prevents the sliding and serious abrasion of a contact surface, is convenient to replace, and please refer to fig. 1, 2, 3, 4 and 5, and comprises a hydraulic leg 100, an auxiliary hydraulic device 200, a force application plate 300, a bottom plate 400 and an anti-abrasion plate 500;

the top of the hydraulic leg 100 is provided with a top mounting piece 110, specifically, the top of the hydraulic leg 100 is provided with the top mounting piece 110, the hydraulic leg 100 is convenient for integral support, the output end of the hydraulic leg 100 is provided with a telescopic leg 130 matched with the telescopic of the hydraulic leg 100, the number of the hydraulic legs 100 is adjusted according to the actual requirement of the semi-trailer, and the hydraulic leg 100 needs to be uniformly mounted at the bottom of the semi-trailer;

meanwhile, the auxiliary hydraulic device 200 is fixed on the side wall of the hydraulic leg 100 through screws, specifically, the auxiliary hydraulic device 200 is arranged on the side wall of the hydraulic leg 100, a first telescopic rod 210 is arranged at the output end of the auxiliary hydraulic device 200, a second telescopic rod 220 is arranged at the output end of the first telescopic rod 210, and the auxiliary hydraulic device 200 and the hydraulic leg 100 are vertically arranged;

in some embodiments, the first telescopic rod 210 and the second telescopic rod 220 are of hard metal structures, so that stability of the hydraulic leg 100 in the extending process is improved, and the auxiliary hydraulic device 200 can be connected with a control device of the hydraulic leg in series or be externally connected with a control device alone, so that the aim of synchronous or independent adjustment with the hydraulic leg is fulfilled;

further, the top of the force application plate 300 is combined with the telescopic leg 130, specifically, the force application plate 300 is disposed at the bottom of the telescopic leg 130, and the triangle block one 310 and the triangle block two 330 are welded at the top of the force application plate 300. The triangular block one 310 and the triangular block two 330 are arranged so as to be matched with the pin shaft one 320 and the pin shaft two 340 respectively to generate movable connection;

further, the top of the bottom plate 400 is combined with the force application plate 300, specifically, the bottom of the force application plate 300 is provided with the bottom plate 400, the top of the inner cavity of the bottom plate 400 is provided with the inner pad 410, the arrangement of the inner pad 410 generates a combined structure between the force application plate 300 and the bottom plate 400, and in order to ensure the use effect of the inner pad 410, a groove matched with the inner pad 410 can be selectively arranged at the bottom of the force application plate 300;

in some embodiments, a combination bolt is disposed at the center of the bottom plate 400, and a jack matched with the combination bolt is reserved at the bottom of the force application plate 300, and the combination bolt can penetrate through the jack and then be fixed by matching with a locking nut, as shown in fig. 4.

Further, the top of the wear plate 500 is combined with the bottom plate 400, specifically, the bottom of the bottom plate 400 is adhered with the wear plate 500, the bottom of the wear plate 500 is integrally formed with the raised strips 520, and the raised strips 520 can form a wear-resistant platform at the bottom of the wear plate 500, so that resistance is increased conveniently.

When the hydraulic support is specifically used, the top mounting piece 110 is arranged at the top of the hydraulic leg 100, the top mounting piece 110 carrying the mounting bolt 120 is connected to the top mounting piece 110, the telescopic leg 130 is arranged at the bottom of the hydraulic leg 110, the bottom of the telescopic leg 130 is connected with the triangular block one 310 carrying the pin shaft one 320, the two triangular blocks one 310 are fixed on the force application plate 300, meanwhile, the force application plate 300 is also provided with the triangular block two 330, the triangular block two 330 is connected with the telescopic rod two 220 through the pin shaft two 340, the telescopic rod two 220 is provided with the auxiliary hydraulic device 200 carrying the telescopic rod one 210, the aim of adjusting the angle of the telescopic rod 300 is achieved when the hydraulic leg 100 is matched with the telescopic leg 130 in a telescopic way, the shaking probability of the force application plate 300 is effectively reduced, the limiting effect is better, meanwhile, the bottom plate 400 carrying the inner pad 410 is arranged at the bottom of the force application plate 300, the support leg and the ground support process have the functions of buffering and resistance increasing, the sliding and the serious abrasion of the contact surface are avoided, and the replacement is convenient.

Further, in order to facilitate the increase of the combining capability of the hydraulic leg 100 and the semitrailer frame, specifically, the top of the hydraulic leg 100 is provided with a top mounting member 110, and the side wall of the top mounting member 110 is provided with a mounting peg 120.

It should be noted that, in order to enable the telescopic leg 130 to move on the force application plate 300, specifically, the side walls of the two first triangular blocks 310 are provided with a first pin 320 penetrating the telescopic leg 130.

Meanwhile, in order to facilitate the increase of the mobility of the second telescopic rod 220 and the force application plate 300 and facilitate the adjustment of the fit in the telescopic operation, specifically, the side walls of the second triangular block 330 are provided with a second pin 340 penetrating through the second telescopic rod 220.

Further, in order to increase the supporting and buffering effects of the inner pad plate 410 on the force application plate 300, specifically, the top of the inner pad plate 410 is integrally connected with a protruding plate 420, and an inner pad groove 430 is reserved between the plurality of protruding plates 420.

Finally, to make the wear plate 500 closer to the apply plate 300, in particular, the side walls of the wear plate 500 are integrally formed with wings 510.

In addition, the present utility model relates to circuits, electronic components and modules in the prior art, and those skilled in the art can fully implement the present utility model, and needless to say, the protection of the present utility model does not relate to improvement of the internal structure and method.

Although the utility model has been described hereinabove with reference to embodiments, various modifications thereof may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model. In particular, the features of the disclosed embodiments may be combined with each other in any manner so long as there is no structural conflict, and the exhaustive description of these combinations is not given in this specification merely for the sake of brevity and resource saving. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims

1. The utility model provides a semitrailer landing leg structure which characterized in that: comprises a hydraulic leg (100), an auxiliary hydraulic device (200), a force application plate (300), a bottom plate (400) and a wear plate (500);

wherein,,

the hydraulic leg (100) is convenient for integral support, and a telescopic leg (130) matched with the telescopic of the hydraulic leg (100) is arranged at the output end of the hydraulic leg (100);

the auxiliary hydraulic device (200) is arranged on the side wall of the hydraulic leg (100), the first telescopic rod (210) is arranged at the output end of the auxiliary hydraulic device (200), and the second telescopic rod (220) is arranged at the output end of the first telescopic rod (210);

the force application plate (300) is arranged at the bottom of the telescopic leg (130), and a first triangular block (310) and a second triangular block (330) are welded at the top of the force application plate (300);

the bottom plate (400) is arranged at the bottom of the force application plate (300), and an inner base plate (410) is arranged at the top of an inner cavity of the bottom plate (400);

the anti-wear plate (500), the bottom of bottom plate (400) bonds anti-wear plate (500), the bottom integrated into one piece of anti-wear plate (500) is connected with sand grip (520).

2. A semitrailer leg structure as claimed in claim 1, wherein: the top of the hydraulic leg (100) is provided with a top mounting piece (110), and the side wall of the top mounting piece (110) is provided with a mounting bolt (120).

3. A semitrailer leg structure as claimed in claim 2, wherein: the side walls of the two triangular blocks I (310) are provided with pin shafts I (320) penetrating through the telescopic legs (130).

4. A semitrailer leg structure as claimed in claim 3, wherein: the side walls of the two triangular blocks II (330) are provided with a pin II (340) penetrating through the telescopic rod II (220).

5. The semitrailer leg structure as in claim 4, wherein: the top integrated into one piece of inner backing plate (410) is connected with flange (420), a plurality of interior pad groove (430) are reserved between flange (420).

6. The semitrailer leg structure as in claim 5, wherein: the side wall integrated into one piece of wear plate (500) is connected with pterygoid lamina (510).