Rear longitudinal beam assembly with reinforcing structure

Abstract

The rear longitudinal beam assembly with the reinforcing structure comprises a rear longitudinal beam rear section and a rear longitudinal beam front section, the rear longitudinal beam front section comprises a main beam shell, an inner supporting frame and a shear-resistant middle frame, the main beam shell is installed at one end of the rear longitudinal beam rear section and fixedly connected with the rear longitudinal beam rear section, the inner supporting frame is installed in the main beam shell, and the shear-resistant middle frame is fixedly connected with the inner supporting frame. And the inner supporting frame is fixedly connected with the main beam shell. The main beam shell is designed to be of a structure that the front shell body is matched with the connecting inserting pipe, inserting operation can be conducted through the connecting inserting pipe easily when the main beam shell needs to be connected with the rear longitudinal beam rear section, the inner supporting frame is installed in the connecting inserting pipe, then the using strength of the connecting inserting pipe is improved through the inner supporting frame, deformation and damage are avoided, and the service life of the main beam shell is prolonged. Meanwhile, after the main beam shell and the rear longitudinal beam rear section are connected in an inserted mode, the shearing middle frame can penetrate through the main beam shell and the rear longitudinal beam rear section.

Description

Technical Field

[0001] The utility model relates to the technical field of rear longitudinal beam assemblies, in particular to a rear longitudinal beam assembly with a reinforced structure. Background Art

[0002] At present, with the continuous improvement of vehicle collision safety, comfort and the self-weight of new energy vehicles, the material strength and thickness of the rear longitudinal beam are getting higher and higher. As the main load-bearing structure of the load-bearing body, the rear longitudinal beam bears the forces from the vehicle's own weight, occupants, chassis shock absorption and collision, so higher requirements are put forward on the structural design of the rear longitudinal beam.

[0003] The existing Chinese patent with publication number CN218112797U discloses a rear longitudinal beam assembly and a vehicle, wherein the rear longitudinal beam assembly is used for a fuel cell vehicle, and the fuel cell vehicle is provided with a fuel storage tank. The rear longitudinal beam assembly comprises: a rear longitudinal beam body, wherein the rear longitudinal beam body is provided with a recessed portion, wherein the recessed portion is recessed from the inside to the outside to form an escape area, and wherein the escape area is suitable for escaping the end of the fuel storage tank. Thus, by providing the recessed portion on the rear longitudinal beam body, an escape area is formed on the rear longitudinal beam assembly for escaping the end of the fuel storage tank.

[0004] With respect to the above-mentioned related technologies, it is found that the above-mentioned rear longitudinal beam assembly improves the strength of the rear section of the rear longitudinal beam, but in actual use, it is found that the overall strength of the connection between the front section of the rear longitudinal beam and the rear section of the rear longitudinal beam is insufficient, and the front and rear ends are easily separated when impacted. Utility Model Content

[0005] The present application provides a rear longitudinal beam assembly with a reinforced structure, which is used to solve the problems raised in the background technology.

[0006] The utility model is achieved in this way:

[0007] A rear longitudinal beam assembly with a reinforced structure includes a rear longitudinal beam rear section and a rear longitudinal beam front section, the rear longitudinal beam front section includes a main beam shell, an inner support frame and a shear-resistant middle frame, the main beam shell is installed at one end of the rear longitudinal beam rear section, and the main beam shell is fixedly connected to the rear longitudinal beam rear section, the inner support frame is installed in the main beam shell, and the inner support frame is fixedly connected to the main beam shell, the shear-resistant middle frame is horizontally inserted into the main beam shell, the inner support frame and the rear longitudinal beam rear section in sequence, and the shear-resistant middle frame is fixedly connected to the rear longitudinal beam rear section by bolts.

[0008] Furthermore, the main beam shell includes a front shell and a connecting pipe, the connecting pipe is arranged on one side of the front shell, and the connecting pipe and the front shell are integrally formed.

[0009] Furthermore, the inner support frame includes a frame and cross ribs, the cross ribs are vertically arranged in the frame, and the cross ribs and the frame are integrally formed.

[0010] Furthermore, concave side frames for the shear-resistant middle frame to pass through are arranged on both sides of the frame, and the concave side frames are integrally formed with the frame.

[0011] Furthermore, the shear-resistant middle frame includes an insert steel plate and an outer plate, the insert steel plate is vertically arranged at both ends of the outer plate, and the insert steel plate and the outer plate are integrally formed.

[0012] Furthermore, the front shell is provided with a horizontal slot for inserting a steel plate for installation, and the outer end of the front shell is also provided with a storage groove for storing an outer plate.

[0013] Furthermore, corresponding positioning holes are provided on the connecting pipe, the frame and the rear section of the rear longitudinal beam.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the utility model designs the main beam shell into a structure in which the front shell body and the connecting plug are matched, so that when it is needed to be connected with the rear section of the rear longitudinal beam, the connecting plug can be plugged in through the connecting plug, and an inner support frame is installed in the connecting plug to increase the use strength of the connecting plug, thereby avoiding deformation and damage. At the same time, after the main beam shell and the rear section of the rear longitudinal beam are plugged in, the shear frame can be used to pass through the two, thereby further increasing the stability of the connection between the two and greatly increasing the connection strength between the two. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a structural schematic diagram of the rear longitudinal beam assembly of an automobile;

[0017] Figure 2 It is a three-dimensional diagram of the overall structure in the embodiment of the utility model;

[0018] Figure 3 It is a schematic diagram of the exploded structure of the overall structure in the embodiment of the utility model;

[0019] Figure 4 yes Figure 3 A perspective view of the inner support frame shown;

[0020] Figure 5 yes Figure 4 A cross-sectional view of the device along the AA direction;

[0021] Figure 6 yes Figure 3 A perspective view of the main beam shell shown;

[0022] Figure 7 yes Figure 6 A cross-sectional view of the device along direction BB is shown.

[0023] In the figure: 1, rear section of rear longitudinal beam; 2, front section of rear longitudinal beam; 21, main beam shell; 211, front shell body; 212, connecting plug; 213, horizontal slot; 214, storage slot; 215, positioning hole; 22, inner support frame; 221, frame; 222, cross rib; 223, concave side frame; 23, shear-resistant middle frame; 231, plug steel plate; 232, outer plate. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is claimed, but merely represents selected embodiments of the utility model.

[0025] Reference Figure 1 , Figure 2 and Figure 3 As shown, a rear longitudinal beam assembly with a reinforced structure includes a rear longitudinal beam rear section 1 and a rear longitudinal beam front section 2, the rear longitudinal beam front section 2 includes a main beam shell 21, an inner support frame 22 and a shear-resistant middle frame 23, the main beam shell 21 is installed at one end of the rear longitudinal beam rear section 1, and the main beam shell 21 is fixedly connected to the rear longitudinal beam rear section 1, the inner support frame 22 is installed in the main beam shell 21, and the inner support frame 22 is fixedly connected to the main beam shell 21, the shear-resistant middle frame 23 is horizontally inserted into the main beam shell 21, the inner support frame 22 and the rear longitudinal beam rear section 1 in sequence, and the shear-resistant middle frame 23 is fixedly connected to the rear longitudinal beam rear section 1 by bolts. When in use, the front section 2 of the rear longitudinal beam is installed on one side of the rear section 1 of the rear longitudinal beam to cooperate with the connection. At the same time, the structural setting of the front section 2 of the rear longitudinal beam is used to ensure that the inner support frame 22 is installed in the main beam shell 21, and then the main beam shell 21 is supported by the inner support frame 22, so as to increase the connection strength between the front section 2 of the rear longitudinal beam and the rear section 1 of the rear longitudinal beam. At the same time, after the front section 2 of the rear longitudinal beam and the rear section 1 of the rear longitudinal beam are connected, the shear-resistant middle frame 23 can be inserted into the two, so as to further increase the stability of the connection between the two.

[0026] Reference Figure 3 , Figure 6and Figure 7 As shown, the main beam shell 21 includes a front shell 211 and a connecting plug 212, the connecting plug 212 is arranged on one side of the front shell 211, and the connecting plug 212 is integrally formed with the front shell 211. The structural setting of the main beam shell 21 ensures that the front shell 211 can be inserted into the rear section 1 of the rear longitudinal beam through the connecting plug 212 when it is installed to achieve a stable connection. The inner support frame 22 includes a frame 221 and a cross rib 222, the cross rib 222 is vertically arranged in the frame 221, and the cross rib 222 is integrally formed with the frame 221. The structural setting of the inner support frame 22 ensures that the frame 221 can be supported in the connecting plug 212, thereby increasing the use strength of the connecting plug 212 and avoiding deformation after external force. At the same time, by arranging the cross rib 222 in the frame 221, the overall use strength of the frame 221 is increased through the cross rib 222.

[0027] Reference Figure 3 , Figure 4 and Figure 5 As shown, the frame 221 is provided with concave side frames 223 for the shear-resistant middle frame 23 to pass through on both sides, and the concave side frames 223 are integrally formed with the frame 221. By providing the concave side frames 223 for the shear-resistant middle frame 23 to pass through on both sides of the frame 221, when the shear-resistant middle frame 23 is inserted into the front section 2 of the rear longitudinal beam, the concave side frames 223 can be used for limiting. The shear-resistant middle frame 23 includes an insert steel plate 231 and an outer plate 232, and the insert steel plate 231 is vertically arranged at both ends of the outer plate 232, and the insert steel plate 231 is integrally formed with the outer plate 232. By setting the structure of the shear-resistant middle frame 23, it is convenient to connect the two insert steel plates 231 to each other through the outer plate 232, so that when plugging is required, the two insert steel plates 231 can be sequentially passed through the front section 2 of the rear longitudinal beam and the rear section 1 of the rear longitudinal beam, and finally the rear section 1 of the rear longitudinal beam and the insert steel plate 231 are fixed to each other by bolts.

[0028] Reference Figure 4 and Figure 7 As shown, a horizontal slot 213 for installing the plug-in steel plate 231 is provided on the front housing 211, and a receiving slot 214 for receiving the outer plate 232 is also provided at the outer end of the front housing 211. By providing the horizontal slot 213 on the front housing 211, it is convenient to insert and install the plug-in steel plate 231 through the horizontal slot 213, and at the same time, by setting the receiving slot 214, it is ensured that the outer plate 232 can be received in the receiving slot 214 after the plug-in steel plate 231 is fully inserted, and corresponding positioning holes 215 are provided on the connecting plug 212, the frame 221 and the rear section 1 of the rear longitudinal beam. By setting the positioning holes 215, it is convenient for bolts to pass through the connecting plug 212, the frame 221 and the rear section 1 of the rear longitudinal beam, so as to fix the three to each other.

[0029] Working principle: When in use, the inner support frame is fixedly installed in the connecting insert of the main beam shell, and then the front section of the rear longitudinal beam can be inserted into the rear section of the rear longitudinal beam through the connecting insert, and the long bolts are passed through the positioning holes of the rear section of the rear longitudinal beam, the connecting insert and the frame in sequence, and finally the bolts are installed on the long bolts to lock it, and finally the shear-resistant middle frame insert steel plate is inserted from the horizontal slot. When it is fully inserted, the front section of the rear longitudinal beam and the insert steel plate can be fixed to each other during the insertion process of the front section of the rear longitudinal beam.

[0030] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A rear longitudinal beam assembly with a reinforced structure, comprising a rear longitudinal beam rear section (1) and a rear longitudinal beam front section (2), characterized in that: The front section (2) of the rear longitudinal beam comprises a main beam shell (21), an inner support frame (22) and a shear-resistant middle frame (23); the main beam shell (21) is mounted on one end of the rear section (1) of the rear longitudinal beam, and the main beam shell (21) is fixedly connected to the rear section (1) of the rear longitudinal beam; the inner support frame (22) is mounted in the main beam shell (21), and the inner support frame (22) is fixedly connected to the main beam shell (21); the shear-resistant middle frame (23) is horizontally inserted into the main beam shell (21), the inner support frame (22) and the rear section (1) of the rear longitudinal beam in sequence, and the shear-resistant middle frame (23) is fixedly connected to the rear section (1) of the rear longitudinal beam by bolts.

2. The rear longitudinal beam assembly with a reinforced structure according to claim 1, characterized in that: The main beam shell (21) comprises a front shell (211) and a connecting insert (212); the connecting insert (212) is arranged on one side of the front shell (211), and the connecting insert (212) and the front shell (211) are integrally formed.

3. The rear longitudinal beam assembly with a reinforced structure according to claim 2, characterized in that: The inner support frame (22) comprises a frame (221) and a cross rib (222); the cross rib (222) is vertically arranged in the frame (221), and the cross rib (222) and the frame (221) are integrally formed.

4. The rear longitudinal beam assembly with a reinforced structure according to claim 3, characterized in that: Concave side frames (223) for the shear-resistant middle frame (23) to pass through are arranged on both sides of the frame (221); the concave side frames (223) and the frame (221) are integrally formed.

5. The rear longitudinal beam assembly with a reinforced structure according to claim 4, characterized in that: The shear-resistant middle frame (23) comprises an insert steel plate (231) and an outer plate (232); the insert steel plate (231) is vertically arranged at both ends of the outer plate (232); and the insert steel plate (231) and the outer plate (232) are integrally formed.

6. The rear longitudinal beam assembly with a reinforced structure according to claim 5, characterized in that: The front shell (211) is provided with a horizontal slot (213) for installing the steel plate (231), and the outer end of the front shell (211) is also provided with a storage groove (214) for storing the outer plate (232).

7. The rear longitudinal beam assembly with a reinforced structure according to claim 6, characterized in that: The connecting insert (212), the frame (221) and the rear section (1) of the rear longitudinal beam are all provided with corresponding positioning holes (215).

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