Reinforced light semitrailer girder

Abstract

The utility model discloses a reinforced light semitrailer girder which comprises two longitudinal long beams, and a connecting cross beam is fixed between the two longitudinal long beams. The semitrailer girder has the advantages that in the existing semitrailer girder design, the structural strength is enhanced by increasing the thickness of a steel plate or additionally arranging reinforcing ribs, however, due to the mode, the girder structure is fixed, the weight is large, the overall load of a semitrailer is increased, and then the transportation efficiency and the fuel economy are affected. According to the utility model, the detachable reinforced steel pipe structure is adopted, so that the strength of the girder can be flexibly adjusted. When the bearing capacity needs to be increased, the reinforcing steel pipes can be installed in place, and the longitudinal long beams are supported through the reinforcing steel pipes and prevented from being broken. In general, the reinforcing steel pipes can be detached, so that the weight of the girder is reduced, the load of the semitrailer is reduced, and the transportation efficiency and the fuel economy are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of semitrailer girder, specifically is a reinforced light semitrailer girder. BACKGROUND

[0002] In the existing semitrailer girder design, in order to enhance its structural strength, usually adopt two main methods: one is to increase the thickness of girder steel plate, two is to add reinforcing rib. These methods have been proved to effectively improve the carrying capacity of semitrailer girder in practice. However, this traditional strengthening mode has an inherent defect, that is, once the strengthening structure is determined, it is relatively fixed, and cannot be flexibly adjusted according to actual demand. Therefore, even in the case of not needing additional strength, the weight of girder is often larger, which undoubtedly increases the overall load of semitrailer, affects its transportation efficiency and fuel economy.

[0003] In view of the above problems, the industry urgently needs a new type of semitrailer girder design, which can meet the strength requirement and realize lightweight to reduce the load of semitrailer and improve the transportation efficiency. INVENTION CONTENTS

[0004] The utility model discloses to the shortage of prior art, provide a reinforced light semitrailer girder to solve the problem in the background art.

[0005] The utility model provides the following technical scheme: a reinforced light semitrailer girder, including longitudinal long beam, the quantity of longitudinal long beam is two, and the connecting crossbeam is fixed between two longitudinal long beams, and the end of two longitudinal long beams is fixed with the reinforcing seat for being fixed with the semitrailer body base, the reinforcing seat detachably installs reinforcing steel pipe, the length direction of reinforcing steel pipe is consistent with the length direction of longitudinal long beam, and reinforcing steel pipe is supported at the bottom of longitudinal long beam.

[0006] Preferably, the inner side of two longitudinal long beams is equipped with recessed groove, and the end of connecting crossbeam is connected in recessed groove.

[0007] Preferably, the connecting crossbeam is welded with recessed groove.

[0008] Preferably, the outer side top of longitudinal long beam is fixed with extension plate, and the other end of extension plate and longitudinal long beam connection is fixed with inclined support plate between the outer side bottom of longitudinal long beam.

[0009] Preferably, the bottom of longitudinal long beam is fixed with steel block along the length direction equidistantly, and the through hole for making reinforcing steel pipe insertion is arranged on steel block.

[0010] Preferably, the reinforcing steel pipe penetrates through two of the reinforcing seats, and two ends of the reinforcing steel pipe are threadedly connected with connecting plates, and two ends of the connecting plates are threadedly connected with two fixing bolts and the reinforcing seats.

[0011] Preferably, the through hole is internally fixed with a rubber sleeve.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: the existing semitrailer girder design often adopts the mode of increasing the thickness of steel plates or adding reinforcing ribs to enhance the structural strength, but this mode leads to fixed girder structure, large weight, increased overall load of the semitrailer, and further affects the transportation efficiency and fuel economy. The utility model adopts the detachable reinforcing steel pipe structure, realizes flexible adjustment of the girder strength, and when the bearing capacity needs to be increased, the reinforcing steel pipe can be installed in place, the longitudinal girder is supported by the reinforcing steel pipe to prevent it from being broken. In general cases, the reinforcing steel pipe can be detached, thereby reducing the weight of the girder and the load of the semitrailer, and helping to improve the transportation efficiency and fuel economy. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 It is a three-dimensional structure schematic view of the utility model.

[0014] Fig. 2 It is a three-dimensional structure schematic view of the utility model.

[0015] Fig. 3 It is a three-dimensional structure schematic view of the utility model when the reinforcing steel pipe is not installed.

[0016] In the drawing: 1, longitudinal girder; 2, connecting cross beam; 3, reinforcing seat; 4, reinforcing steel pipe; 5, recessed groove; 6, extension plate; 7, inclined support plate; 8, steel block; 9, through hole; 10, connecting plate; 11, fixing bolt; 12, rubber sleeve. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0018] Please refer to Figs. 1-3The utility model discloses a reinforced light semi-trailer girder, including longitudinal long beam 1, the quantity of longitudinal long beam 1 is two, and the fixed connection crossbeam 2 of two longitudinal long beam 1 is fixed between, and the end of two longitudinal long beam 1 is fixed with the reinforcing seat 3 for with semi-trailer body base fixed, above constitutes the basic structure of semi-trailer girder, here do not repeat.

[0019] The main innovation of the utility model lies in that:

[0020] The reinforcing seat 3 detachably installs the reinforcing steel pipe 4, the length direction of reinforcing steel pipe 4 is consistent with the length direction of longitudinal long beam 1, and the reinforcing steel pipe 4 is supported at the bottom of longitudinal long beam 1, when the bearing capacity of longitudinal long beam 1 needs to be increased, the two ends of reinforcing steel pipe 4 can be connected in two reinforcing seats 3 respectively, longitudinal long beam 1 is supported through reinforcing steel pipe 4, to prevent longitudinal long beam 1 from breaking, on the contrary, under normal circumstances, reinforcing steel pipe 4 can be disassembled, so as to reduce the weight of semi-trailer girder, reduce the load of trailer.

[0021] In some embodiments, the inner side of the two longitudinal long beams 1 is provided with a recess groove 5, and the end of the connecting crossbeam 2 is connected in the recess groove 5. The connecting crossbeam 2 plays a connecting role between the two longitudinal long beams 1, increasing the firmness of the semi-trailer girder.

[0022] In some embodiments, the connecting crossbeam 2 and the recess groove 5 are welded and fixed.

[0023] In some embodiments, the outer side top of the longitudinal long beam 1 is fixed with an extension plate 6. The purpose of the extension plate 6 is to increase the support surface of the semi-trailer girder to the trailer compartment. The other end of the extension plate 6 connected with the longitudinal long beam 1 and the outer side bottom of the longitudinal long beam 1 are fixed with an inclined support plate 7. The inclined support plate 7 is provided with a triangular stable structure together with the extension plate 6 and the longitudinal long beam 1, improving the support strength of the extension plate 6 to the bottom of the compartment.

[0024] The following is a specific embodiment of the installation of the reinforcing steel pipe 4:

[0025] The bottom of the longitudinal long beam 1 is fixed with a steel block 8 at equal intervals along the length direction. A through hole 9 is provided on the steel block 8 for inserting the reinforcing steel pipe 4. The reinforcing steel pipe 4 penetrates the two reinforcing seats 3, and the two ends of the reinforcing steel pipe 4 are threadedly connected with a connecting plate 10. Two fixing bolts 11 are threadedly connected between the two ends of the connecting plate 10 and the reinforcing seats 3. When installing the reinforcing steel pipe 4, the reinforcing steel pipe 4 is inserted into the reinforcing seat 3, the reinforcing steel pipe 4 passes through the steel block 8 at the bottom of the longitudinal long beam 1, then the connecting plate 10 is threadedly connected at the end of the reinforcing steel pipe 4 for limiting, and finally the connecting plate 10 and the reinforcing seat 3 are fixed through the fixing bolts 11.

[0026] The rubber sleeve 12 is fixed in the through hole 9, and when the reinforced steel pipe 4 is inserted into the through hole 9, the rubber sleeve 12 is wrapped on the surface of the reinforced steel pipe 4, and buffering effect can be achieved between the steel block 8 and the reinforced steel pipe 4.

[0027] In summary, the utility model aims at realizing a reinforced light semi-trailer girder which meets strength requirements and realizes light weight, through the design of the detachable reinforced steel pipe 4, so that the semi-trailer girder can reduce weight and reduce load when additional strength is not needed, thereby improving transportation efficiency and fuel economy, while maintaining necessary structural strength.

[0028] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A reinforced light-weight semi-trailer girder, characterized by: The application relates to a semi-trailer frame, which comprises two longitudinal long beams (1), a connecting beam (2) fixed between the two longitudinal long beams (1), and a reinforcing seat (3) fixed at the end of the two longitudinal long beams (1) and used for fixing a semi-trailer body base, wherein the reinforcing seat (3) is detachably provided with a reinforcing steel pipe (4) whose length direction is consistent with the length direction of the longitudinal long beam (1), and the reinforcing steel pipe (4) is supported at the bottom of the longitudinal long beam (1).

2. The reinforced light-weight semi-trailer girder according to claim 1, characterized in that: The inner side of the two longitudinal long beams (1) is provided with a recessed groove (5), and the end of the connecting beam (2) is connected in the recessed groove (5).

3. A reinforced light-weight semi-trailer girder according to claim 2, characterized in that: The connecting beam (2) is welded and fixed with the recessed groove (5).

4. The reinforced light-weight semi-trailer girder according to claim 1, characterized in that: The outer side top of the longitudinal long beam (1) is fixed with an extension plate (6), and the other end of the extension plate (6) connected with the longitudinal long beam (1) is fixed with an inclined supporting plate (7) between the outer side bottom of the longitudinal long beam (1).

5. The reinforced light-weight semi-trailer girder according to claim 1, characterized in that: The bottom of the longitudinal long beam (1) is fixed with a steel block (8) at equal intervals along the length direction, and the steel block (8) is provided with a through hole (9) for inserting the reinforcing steel pipe (4).

6. A reinforced light-weight semi-trailer girder according to claim 5, characterized in that: The reinforcing steel pipe (4) penetrates through the two reinforcing seats (3), and the two ends of the reinforcing steel pipe (4) are threadedly connected with a connecting plate (10), and the two ends of the connecting plate (10) are threadedly connected with two fixing bolts (11) between the reinforcing seats (3).

7. The reinforced light-weight semi-trailer girder according to claim 5, characterized in that: The through hole (9) is fixed with a rubber sleeve (12).

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