Hydraulic semitrailer gooseneck boom lifting device

Abstract

The utility model discloses a hydraulic type semitrailer gooseneck boom lifting device which comprises a semitrailer body, a gooseneck boom body and a supporting mechanism, a side frame is fixed on the upper side of the right end of the semitrailer body, a lifting frame is connected in the side frame in a sliding mode, and a plurality of first hydraulic cylinders are arranged in the side frame at equal intervals. The telescopic end of the first hydraulic cylinder is connected with the upper side of an inner cavity of a lifting frame, and a gooseneck boom body is welded to the upper end of the lifting frame. The supporting mechanism comprises a movable shaft, a supporting cylinder, a supporting plate, a first mounting seat, a second mounting seat and a second hydraulic cylinder, the bottom side of the right end of the gooseneck boom body is provided with the groove, the supporting mechanism is arranged at the groove, and the gooseneck boom body is driven by the first hydraulic cylinder to ascend and descend. The hydraulic cylinder drives the supporting plate to make contact with the ground, so that the gooseneck boom body is well supported, the good stress effect of the gooseneck boom body is guaranteed, the rollover risk is avoided, and the use safety is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of semitrailer equipment, especially relates to a hydraulic semi-trailer goose head lifting device. BACKGROUND

[0002] The goose head part (usually refers to the part bending upwards at the front of the semi-trailer) of the semi-trailer can increase the length of the carriage. When transporting some long goods, such as some pipes and wood, the extra space provided by the goose head can allow the goods to be better loaded, avoiding the safety hidden danger caused by the goods exceeding the specified range of the vehicle body.

[0003] In order to conveniently place goods of different heights, it is usually necessary to set a hydraulic lifting mechanism at the end of the goose head of the semi-trailer, improving the convenience, but as the goose head of the semi-trailer is raised, since no supporting mechanism is arranged at the other end, uneven force is caused, and thus the risk of rollover can occur. UTILITY MODEL CONTENTS

[0004] To solve the problems in the prior art, the utility model provides a hydraulic semi-trailer goose head lifting device, a groove is formed at the right end bottom side of the goose head body, and a supporting mechanism is arranged at the groove, in the process of lifting the goose head body by the first hydraulic cylinder, the hydraulic cylinder drives the supporting plate to be in contact with the ground, so that good support is provided for the goose head body, the good force effect is ensured, the risk of rollover is avoided, and the use safety is improved.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A hydraulic semi-trailer goose head lifting device, including semi-trailer body, goose head body and supporting mechanism, the right end upper side of the semi-trailer body is fixed with a side frame, the side frame is slidably connected with a lifting frame, a plurality of first hydraulic cylinders are equidistantly arranged in the side frame, the telescopic end of the first hydraulic cylinder is connected with the upper side of the inner chamber of the lifting frame, and the upper end of the lifting frame is welded with the goose head body;The supporting mechanism includes a movable shaft, a supporting cylinder, a supporting plate, a first mounting seat, a second mounting seat and a second hydraulic cylinder, a groove is formed in the right side of the goose head body, the right end of the groove is movably connected with a movable shaft, the side surface of the movable shaft is provided with a supporting cylinder, the telescopic end of the supporting cylinder is fixed with a supporting plate, the bottom side of the groove is provided with a first mounting seat, the side surface of the supporting cylinder is provided with a second mounting seat, and the first mounting seat and the second mounting seat are movably connected through a second hydraulic cylinder, a groove is formed at the right end bottom side of the goose head body, and a supporting mechanism is arranged at the groove, in the process of lifting the goose head body by the first hydraulic cylinder, the hydraulic cylinder drives the supporting plate to be in contact with the ground, so that good support is provided for the goose head body, the good force effect is ensured, the risk of rollover is avoided, and the use safety is improved.

[0007] Further, the right end bottom side of the goose head body is fixed with a baffle, the side close to the supporting cylinder of the baffle is fixed with a stop block, the left side of the stop block is provided with a stop groove, the supporting cylinder is in contact with the stop groove, the baffle is arranged on the right end bottom side of the goose head body, the stop block is arranged on the baffle, the movement range of the supporting cylinder is limited, and the perpendicularity and stability during use are guaranteed.

[0008] Compared with the prior art, the goose head body has the advantages that the recess is arranged on the right end bottom side of the goose head body, the supporting mechanism is arranged on the recess, the supporting plate is in contact with the ground during the lifting process of the goose head body driven by the first hydraulic cylinder, the goose head body is well supported, the good stress effect is guaranteed, the risk of overturning is avoided, and the use safety is improved. BRIEF DESCRIPTION OF DRAWINGS

[0009] Fig. 1 It is a structural schematic view of the utility model.

[0010] Fig. 2 It is a top view structural schematic view of the stop block.

[0011] In the drawing: 1 is a semitrailer body, 2 is a side frame, 3 is a lifting frame, 4 is a first hydraulic cylinder, 5 is a goose head body, 6 is a supporting mechanism, 61 is a movable shaft, 62 is a supporting cylinder, 63 is a supporting plate, 64 is a first mounting seat, 65 is a second mounting seat, 66 is a second hydraulic cylinder, 7 is a baffle, and 8 is a stop block. DETAILED DESCRIPTION

[0012] The technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0013] In the description of the utility model, it should be understood that the terms "up", "down", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model. EMBODIMENT

[0014] Referring to the drawings, Figs. 1-2The utility model provides a kind of hydraulic semi-trailer goose head lifting device, including semi-trailer car body 1, goose head body 5 and support mechanism 6, the right end upper side of semi-trailer car body 1 is fixed with side frame 2, lifting frame 3 is slidably connected in side frame 2, a plurality of first hydraulic cylinders 4 are equidistantly arranged in side frame 2, the telescopic end of first hydraulic cylinder 4 is connected with the upper side of the inner cavity of lifting frame 3, and the upper end of lifting frame 3 is welded with goose head body 5;Support mechanism 6 includes movable shaft 61, support cylinder 62, support plate 63, first mounting seat 64, second mounting seat 65 and second hydraulic cylinder 66, recess is set in the right side of goose head body 5, the right end of the recess is movably connected with movable shaft 61, support cylinder 62 is installed on the side surface of movable shaft 61, support plate 63 is fixed on the telescopic end of support cylinder 62, first mounting seat 64 is arranged on the bottom side of the recess, second mounting seat 65 is arranged on the side surface of support cylinder 62, and first mounting seat 64 and second mounting seat 65 are movably connected by second hydraulic cylinder 66, by setting recess on the right end bottom side of goose head body 5 and setting support mechanism at the recess, in the process that first hydraulic cylinder 4 drives goose head body 5 to lift, support cylinder 62 drives support plate 63 to contact ground, so that good support is provided to goose head body 5, the good stress effect of guaranteeing is guaranteed, the risk of rollover is avoided, and the use safety is improved.

[0015] Baffle 7 is fixed on the right end bottom side of goose head body 5, and stopper 8 is fixed on the side close to support cylinder 62 of baffle 7, stop groove is formed on the left side of stopper 8, and support cylinder 62 is in contact with stop groove, by setting baffle 7 on the right end bottom side of goose head body 5 and setting stopper 8 at baffle 7, the movement range of support cylinder 62 is limited, and the perpendicularity and stability during use are guaranteed.

[0016] Working principle: when the goods of different heights need to be carried, lifting is carried out by controlling first hydraulic cylinder 4, so as to drive lifting frame 3 and goose head body 5 to lift simultaneously, in the process, second hydraulic cylinder 66 is elongated, so as to drive support cylinder 62 to rotate around movable shaft 61 until support cylinder 62 contacts stopper 8, then support cylinder 62 drives support plate 63 to move downwards until support plate 63 contacts ground, so that good support is provided to goose head body 5, the good stress effect of guaranteeing is guaranteed, the risk of rollover is avoided, and the use safety is improved, by setting baffle 7 on the right end bottom side of goose head body 5 and setting stopper 8 at baffle 7, the movement range of support cylinder 62 is limited, and the perpendicularity and stability during use are guaranteed.

[0017] The basic principle and main features of the present application and the advantages of the present application are shown and described above, and it is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or basic characteristics of the present application; therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application, and any reference signs in the claims should not be considered as limiting the claims.

[0018] In addition, it should be understood that, although the present application is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A hydraulic semi-trailer gooseneck lifting device, comprising a semi-trailer body, a gooseneck body and a supporting mechanism, the right end upper side of the semi-trailer body is fixed with a side frame, a lifting frame is slidingly connected in the side frame, a plurality of first hydraulic cylinders are equidistantly arranged in the side frame, the extension end of the first hydraulic cylinder is connected with the upper side of the inner cavity of the lifting frame, and the upper end of the lifting frame is welded with the gooseneck body, characterized in that: The supporting mechanism comprises a movable shaft, a supporting cylinder, a supporting plate, a first mounting seat, a second mounting seat and a second hydraulic cylinder, the right side of the goose head body is provided with a groove, the right end of the groove is movably connected with the movable shaft, the side surface of the movable shaft is provided with the supporting cylinder, the telescopic end of the supporting cylinder is fixed with the supporting plate, the bottom side of the groove is provided with the first mounting seat, the side surface of the supporting cylinder is provided with the second mounting seat, and the first mounting seat and the second mounting seat are movably connected through the second hydraulic cylinder.

2. Hydraulic semi-trailer gooseneck lift according to claim 1, characterized in that The bottom side of the right end of the goose head body is fixed with a baffle, one side of the baffle close to the supporting cylinder is fixed with a stopper, the left side of the stopper is provided with a stop groove, and the supporting cylinder is in contact with the stop groove in a matched mode.

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