A kind of automobile front floor rear cross beam assembly
Technical field
The utility model relates to auto parts and components technical field of structures more particularly to a kind of automobile front floor rear cross beam assemblies.
Background technique
With the continuous development of automotive engineering, requirement of the user for automobile is also higher and higher, focus more on the security performance of automobile, therefore, the security performance for improving automobile is particularly critical during designing and developing in automobile, and crossbeam is to improve the high pith of vehicle safety performance, and crucial effect can be played to side impact, impact force, can be sent to the automobile other side by especially preceding Floor rear crossbeam assembly under the operating conditions such as automobile side crash.
In existing automobile front floor plate assembly structure, it is rigid connection between crossbeam and car body, when impact force is excessive, the resonance power that occupant still will receive shock generates inertia and leads to injury, and safety is lower, and crossbeam is mounted on vehicle body, once slight collision occurs and is damaged, it is also very troublesome when needing repairing, and repair and replacement higher cost.
Utility model content
Purpose of the utility model is to solve disadvantages existing in the prior art, and a kind of automobile front floor rear cross beam assembly proposed.
To achieve the goals above, the utility model adopts the technical scheme that a kind of automobile front floor rear cross beam assembly, including rear cross beam main body, the both ends side wall of the rear cross beam main body is fixedly connected to connecting flange, and connecting flange is fixedly connected with the vehicle body by fixing bolt, the upper end side wall of the rear cross beam main body is by being fixedly connected with buffer unit at center, and buffer unit is fixedly connected with Crashworthy plate far from one end side wall of rear cross beam main body, it is fixedly connected between the Crashworthy plate and rear cross beam main body by two the first springs, and two first springs be located at buffer unit two sides be symmetrical arranged.
It is as above-mentioned technical proposal to further describe:
The buffer unit includes fixed block, the fixed block is fixedly connected with the upper end side wall of rear cross beam main body, and fixed block is hollow structure, the fixed block offers through-hole far from one end side wall of rear cross beam main body, and inserted link is plugged and slidably connected in through-hole, the lower end inner wall of the fixed block is fixedly connected by second spring with the side wall of inserted link.
It is as above-mentioned technical proposal to further describe:
Opposite two sides side wall offers mounting groove in the fixed block, and strut is fixedly connected in mounting groove, it is arranged on the strut and slidably connects sliding sleeve, and the bottom side of the wall of sliding sleeve is fixedly connected by third spring with the side wall of mounting groove, the third spring, which is set on strut, to be arranged, the side wall of the sliding sleeve is fixedly connected with connecting rod, and connecting rod is fixedly connected far from one end side wall of sliding sleeve with the side wall of inserted link.
It is as above-mentioned technical proposal to further describe:
The strut is arranged in cylindrical type, and the through hole inner wall of the lateral wall of strut and sliding sleeve is slidably connected.
It is as above-mentioned technical proposal to further describe:
The sidewall symmetry of the buffer unit is fixedly connected there are four supporting block, and the bottom side of the wall of four supporting blocks is fixedly connected with the upper end side wall of rear cross beam main body.
It is as above-mentioned technical proposal to further describe:
The Crashworthy plate has cushion by viscose adhesion far from one end side wall of buffer unit.
The utility model has the following beneficial effects: when vehicle body side is collided, Crashworthy plate will receive shock first, first spring is squeezed and generates elastic force, simultaneously, since inserted link and through-hole are slidably connected, inserted link follows Crashworthy plate to be displaced in fixed block at this time, second spring, which is squeezed, also generates elastic force, and since sliding sleeve and rear cross beam main body are slidably connected, it is displaced on strut with connecting rod fixed sliding over, third spring, which is squeezed, also generates elastic force, pass through the first spring, the elastic force mating reaction of second spring and third spring, impact force suffered by Crashworthy plate can effectively be offset, rear cross beam main body can tentatively be protected, the impact resistance power of entire rear cross beam assembly is increased simultaneously, resonance power can be weakened, improve passenger inside the vehicle's safety.
Detailed description of the invention
Fig. 1 be the utility model proposes a kind of automobile front floor rear cross beam assembly structural schematic diagram;
Fig. 2 be the utility model proposes a kind of automobile front floor rear cross beam assembly buffer unit schematic diagram;
Fig. 3 is the enlarged structure schematic diagram in Fig. 1 at A.
Marginal data:
1, rear cross beam main body;2, connecting flange;3, fixing bolt;4, Crashworthy plate;5, the first spring;6, fixed block;7, through-hole;8, inserted link;9, second spring;10, mounting groove;11, strut;12, sliding sleeve;13, third spring;14, connecting rod;15, supporting block;16, cushion.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, and the technical scheme in the utility model embodiment is clearly and completely described, it is clear that the described embodiments are only a part of the embodiments of the utility model, instead of all the embodiments.Based on the embodiments of the present invention, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, fall within the protection scope of the utility model.
In the description of the utility model, it should be noted that, the orientation or positional relationship of the instructions such as term " center ", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, it is merely for convenience of describing the present invention and simplifying the description, rather than the device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention;Term " first ", " second ", " third " are used for description purposes only, it is not understood to indicate or imply relative importance, furthermore, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, it may be a detachable connection, or be integrally connected;It can be mechanical connection, be also possible to be electrically connected;It can be directly connected, the connection inside two elements can also be can be indirectly connected through an intermediary.For the ordinary skill in the art, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
Referring to Fig.1-3, a kind of a kind of embodiment provided by the utility model: automobile front floor rear cross beam assembly, including rear cross beam main body 1, the both ends side wall of rear cross beam main body 1 is fixedly connected to connecting flange 2, and connecting flange 2 is fixedly connected with the vehicle body by fixing bolt 3, the upper end side wall of rear cross beam main body 1 is by being fixedly connected with buffer unit at center, and buffer unit is fixedly connected with Crashworthy plate 4 far from one end side wall of rear cross beam main body 1, it is fixedly connected between Crashworthy plate 4 and rear cross beam main body 1 by two the first springs 5, and two the first springs 5 be located at buffer unit two sides be symmetrical arranged, endurance is more evenly;
Buffer unit includes fixed block 6, fixed block 6 is fixedly connected with the upper end side wall of rear cross beam main body 1, and fixed block 6 is hollow structure, fixed block 6 offers through-hole 7 far from one end side wall of rear cross beam main body 1, and inserted link 8 is plugged and slidably connected in through-hole 7, the lower end inner wall of fixed block 6 is fixedly connected by second spring 9 with the side wall of inserted link 8;
Opposite two sides side wall offers mounting groove 10 in fixed block 6, and strut 11 is fixedly connected in mounting groove 10, it is arranged on strut 11 and slidably connects sliding sleeve 12, and the bottom side of the wall of sliding sleeve 12 is fixedly connected by third spring 13 with the side wall of mounting groove 10, third spring 13, which is set on strut 11, to be arranged, the side wall of sliding sleeve 12 is fixedly connected with connecting rod 14, and connecting rod 14 is fixedly connected far from one end side wall of sliding sleeve 12 with the side wall of inserted link 8;
When vehicle body side is collided, Crashworthy plate 4 will receive shock first, first spring 5 is squeezed and generates elastic force, simultaneously, since inserted link 8 and through-hole 7 are slidably connected, inserted link 8 follows Crashworthy plate 4 to be displaced in fixed block 6 at this time, second spring 9, which is squeezed, also generates elastic force, and since sliding sleeve 12 and rear cross beam main body 11 are slidably connected, fixed sliding sleeve 12 is displaced on strut 11 with connecting rod 14, third spring 13, which is squeezed, also generates elastic force, pass through the first spring 5, the elastic force mating reaction of second spring 9 and third spring 13, impact force suffered by Crashworthy plate 4 can effectively be offset, rear cross beam main body 1 can tentatively be protected, the impact resistance power of entire rear cross beam assembly is increased simultaneously;
Strut 11 is arranged in cylindrical type, reduce friction, and the lateral wall of strut 11 and the through hole inner wall of sliding sleeve 12 are slidably connected, convenient for the displacement of sliding sleeve 12, the sidewall symmetry of buffer unit is fixedly connected there are four supporting block 15, and the bottom side of the wall of four supporting blocks 15 is fixedly connected with the upper end side wall of rear cross beam main body 1, connect buffer unit with rear cross beam main body more firm, one end side wall of the Crashworthy plate 4 far from buffer unit has cushion 16 by viscose adhesion, improves impact resistance.
Working principle: when vehicle body side is collided, Crashworthy plate 4 will receive shock first, first spring 5 is squeezed and generates elastic force, simultaneously, since inserted link 8 and through-hole 7 are slidably connected, inserted link 8 follows Crashworthy plate 4 to be displaced in fixed block 6 at this time, second spring 9, which is squeezed, also generates elastic force, and since sliding sleeve 12 and rear cross beam main body 11 are slidably connected, fixed sliding sleeve 12 is displaced on strut 11 with connecting rod 14, third spring 13, which is squeezed, also generates elastic force, pass through the first spring 5, the elastic force mating reaction of second spring 9 and third spring 13, impact force suffered by Crashworthy plate 4 can effectively be offset, rear cross beam main body 1 can tentatively be protected, the impact resistance power of entire rear cross beam assembly is increased simultaneously.
Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention; it is not intended to limit the utility model; although the utility model is described in detail with reference to the foregoing embodiments; for those skilled in the art; it is still possible to modify the technical solutions described in the foregoing embodiments; or equivalent replacement of some of the technical features; within the spirit and principle of the utility model; any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.