Middle and rear floor framework assembly with novel structure

Abstract

The middle and rear floor framework assembly with the novel structure comprises longitudinal beams, a front cross beam, a middle cross beam, a rear cross beam and an anti-collision protection beam, the front cross beam is arranged between the longitudinal beams, the middle cross beam is arranged between the longitudinal beams on one side of the front cross beam, the rear cross beam is arranged between the longitudinal beams on one side of the middle cross beam, and the anti-collision protection beam is arranged between the longitudinal beams on one side of the middle cross beam. Strip-shaped grooves are formed in the outer walls of the sides, close to the front cross beam, the middle cross beam and the rear cross beam, of the longitudinal beams, positioning clamping grooves are formed in the inner walls of the strip-shaped grooves at equal intervals, inserting grooves are formed in the outer walls of the sides, away from the front cross beam, the middle cross beam and the rear cross beam, of the longitudinal beams at equal intervals, and the anti-collision protection beams are arranged on one sides of the longitudinal beams. Supporting rods are welded to the inner walls of the anti-collision protection beams at equal intervals, and one ends of the supporting rods extend into the inserting grooves. According to the utility model, the rigidity and the strength are improved, the energy-absorbing and anti-collision performance is realized, and the stability and the pressure resistance are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile floor frames, in particular to a middle and rear floor frame assembly with a novel structure. Background Art

[0002] In the structure of electric vehicles, the center-rear floor frame assembly is the main functional part, playing an important role in connection and transition issues. The center-rear floor frame assembly plays an important role in the safety structure of the vehicle body.

[0003] The center-rear floor frame assembly is generally composed of a combination of longitudinal and transverse beams, and has a relatively simple structure. In order to reduce the weight of the vehicle body, the longitudinal and transverse beams are often relatively thin, and the rigidity and strength are average. When the car is hit, the center-rear floor frame assembly is easily deformed by force, causing damage to the vehicle body. Moreover, the structural stability and pressure resistance of the center-rear floor frame assembly are average, and its load-bearing capacity is not strong, so it is urgently in need of improvement. Utility Model Content

[0004] The purpose of the utility model is to provide a mid-rear floor frame assembly with a novel structure to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a center-rear floor frame assembly with a new structure, comprising a longitudinal beam, a front cross beam, a middle cross beam, a rear cross beam and an anti-collision guard beam, the front cross beam is arranged between the longitudinal beams, the middle cross beam is arranged between the longitudinal beams on one side of the front cross beam, and the rear cross beam is arranged between the longitudinal beams on one side of the middle cross beam, and the longitudinal beam is provided with a strip groove on the outer wall close to the front cross beam, the middle cross beam and the rear cross beam, and the inner wall of the strip groove is provided with positioning grooves at equal intervals, and the positioning grooves correspond to the front cross beam, the middle cross beam and the rear cross beam respectively, and the outer wall of the longitudinal beam away from the front cross beam, the middle cross beam and the rear cross beam is provided with slots at equal intervals, the anti-collision guard beam is arranged on one side of the longitudinal beam, and both ends of the anti-collision guard beam are connected to the longitudinal beam by bolts, and the inner wall of the anti-collision guard beam is welded with support rods at equal intervals, and one end of the support rod extends to the inside of the slot.

[0006] Preferably, upper and lower grooves are respectively provided at both ends of the upper and lower surfaces of the longitudinal beam to facilitate positioning of the upper and lower compression-resistant brackets.

[0007] Preferably, upper compression-resistant brackets are provided above the front cross beam, the middle cross beam and the rear cross beam, and both ends of the upper compression-resistant brackets extend to the interior of the upper slot and are connected to the longitudinal beams by bolts, thereby enhancing the compression resistance and load-bearing performance.

[0008] Preferably, a lower compression-resistant bracket is provided below the front cross beam, the middle cross beam and the rear cross beam, and both ends of the lower compression-resistant bracket extend to the interior of the lower slot and are connected to the longitudinal beam by bolts, thereby enhancing the compression resistance and load-bearing performance.

[0009] Preferably, both ends of the front cross beam, the middle cross beam and the rear cross beam extend into the interior of the strip groove and are connected to the longitudinal beam by bolts, and both ends of the front cross beam, the middle cross beam and the rear cross beam are welded with positioning blocks, and the positioning blocks are tightly engaged with the positioning slots, so as to facilitate the fixation of the front cross beam, the middle cross beam and the rear cross beam.

[0010] Preferably, the first welding groove, the second welding groove and the third welding groove are respectively provided on both sides of the surfaces of the front cross beam, the middle cross beam and the rear cross beam, and the first reinforcing rods are welded inside the first welding groove, the second welding groove and the third welding groove, and the second reinforcing rods are welded between the first reinforcing rods, thereby further enhancing the structural strength of the front cross beam, the middle cross beam and the rear cross beam.

[0011] Preferably, the lower compression support and the upper compression support are both tightly fitted with the front crossbeam, the middle crossbeam and the rear crossbeam, and the upper compression support and the lower compression support are both I-shaped structures.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The front cross beam, the middle cross beam and the rear cross beam are all arranged between the longitudinal beams, the first reinforcing rod is welded in the first welding groove, the second welding groove and the third welding groove on the surface of the front cross beam, the middle cross beam and the rear cross beam, the second reinforcing rod reinforces the structure of the first reinforcing rod, the first reinforcing rod and the second reinforcing rod enhance the structural strength of the front cross beam, the middle cross beam and the rear cross beam, thereby improving the rigidity and strength of the center and rear floor frame assembly, the anti-collision guard beam is arranged on one side of the longitudinal beam, the two ends of the anti-collision guard beam are fixed to the longitudinal beam by bolts, the support rod on the inner wall of the anti-collision guard beam is stuck in the slot, and when the vehicle is hit, the anti-collision guard beam is deformed The anti-collision guard beam absorbs energy from the impact and protects the longitudinal and transverse beams, reducing their deformation during the impact, thereby reducing the damage to the center-rear floor frame assembly caused by the impact. Furthermore, the upper compression bracket and the lower compression bracket are respectively arranged on the upper and lower surfaces of the front cross beam, the middle cross beam, and the rear cross beam, the two ends of the upper compression bracket are clamped in the upper clamping groove and fixed by bolts, and the two ends of the lower compression bracket are clamped in the lower clamping groove and fixed by bolts. The arrangement of the upper compression bracket and the lower compression bracket enhances the compression resistance and load-bearing performance of the center-rear floor frame assembly, thereby improving the structural stability and pressure resistance of the center-rear floor frame assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 2This is a schematic diagram of the cross-sectional structure of the longitudinal beam of the utility model;

[0016] Figure 3 It is a partial enlarged structural schematic diagram of the utility model;

[0017] Figure 4 It is a schematic diagram of the enlarged structure of the upper compression support of the utility model;

[0018] Figure 5 It is a side structural schematic diagram of the utility model.

[0019] In the figure: 1, longitudinal beam; 101, strip groove; 102, positioning slot; 103, slot; 104, upper slot; 105, lower slot; 2, front cross beam; 201, first welding groove; 3, middle cross beam; 301, second welding groove; 4, rear cross beam; 401, third welding groove; 5, upper pressure-resistant bracket; 6, anti-collision guard beam; 601, support rod; 7, positioning block; 8, first reinforcing rod; 9, second reinforcing rod; 10, lower pressure-resistant bracket. DETAILED DESCRIPTION

[0020] The technical solutions 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. All other embodiments obtained by ordinary technicians in the field without creative work based on the embodiments of the utility model shall fall within the scope of protection of the utility model.

[0021] See also Figure 1-5 The utility model provides an embodiment: a mid-rear floor frame assembly with a new structure, including a longitudinal beam 1, a front cross beam 2, a middle cross beam 3, a rear cross beam 4 and an anti-collision guard beam 6, the front cross beam 2 is arranged between the longitudinal beams 1, the middle cross beam 3 is arranged between the longitudinal beams 1 on one side of the front cross beam 2, and the rear cross beam 4 is arranged between the longitudinal beams 1 on one side of the middle cross beam 3. The longitudinal beam 1 is provided with a strip groove 101 on the outer wall of the side close to the front cross beam 2, the middle cross beam 3, and the rear cross beam 4, and the inner wall of the strip groove 101 is provided with positioning grooves 102 at equal intervals, and the positioning grooves 102 correspond to the front cross beam 2, the middle cross beam 3, and the rear cross beam 4 respectively, and the longitudinal beam 1 is provided with slots 103 at equal intervals on the outer wall of the side away from the front cross beam 2, the middle cross beam 3, and the rear cross beam 4;

[0022] The anti-collision guard beam 6 is arranged on one side of the longitudinal beam 1, and both ends of the anti-collision guard beam 6 are connected to the longitudinal beam 1 by bolts, and the inner wall of the anti-collision guard beam 6 is welded with support rods 601 at equal intervals, and one end of the support rod 601 extends to the inside of the slot 103;

[0023] An upper groove 104 and a lower groove 105 are respectively provided at both ends of the upper surface and the lower surface of the longitudinal beam 1, so as to facilitate the positioning of the upper compression support 5 and the lower compression support 10;

[0024] An upper compression bracket 5 is provided above the front cross beam 2, the middle cross beam 3, and the rear cross beam 4, and both ends of the upper compression bracket 5 extend to the interior of the upper clamping groove 104 and are connected to the longitudinal beam 1 by bolts, thereby enhancing the compression resistance and load-bearing performance;

[0025] A lower pressure-resistant bracket 10 is provided below the front cross beam 2, the middle cross beam 3, and the rear cross beam 4, and both ends of the lower pressure-resistant bracket 10 extend to the inside of the lower clamping groove 105 and are connected to the longitudinal beam 1 by bolts, thereby enhancing the pressure resistance and load-bearing performance;

[0026] Both ends of the front cross beam 2, the middle cross beam 3, and the rear cross beam 4 extend to the inside of the strip groove 101 and are connected to the longitudinal beam 1 through bolts, and both ends of the front cross beam 2, the middle cross beam 3, and the rear cross beam 4 are welded with positioning blocks 7, and the positioning blocks 7 are tightly engaged with the positioning slots 102, so as to facilitate the fixing of the front cross beam 2, the middle cross beam 3, and the rear cross beam 4;

[0027] The first welding groove 201, the second welding groove 301, and the third welding groove 401 are respectively arranged on both sides of the surface of the front cross beam 2, the middle cross beam 3, and the rear cross beam 4, and the first reinforcing rod 8 is welded inside the first welding groove 201, the second welding groove 301, and the third welding groove 401, and the second reinforcing rod 9 is welded between the first reinforcing rods 8, which further enhances the structural strength of the front cross beam 2, the middle cross beam 3, and the rear cross beam 4;

[0028] The lower compression support 10 and the upper compression support 5 are both tightly fitted with the front cross beam 2, the middle cross beam 3, and the rear cross beam 4, and the upper compression support 5 and the lower compression support 10 are both "I"-shaped structures.

[0029] When the embodiment of the present application is in use: first, the middle and rear floor frame assembly is mainly composed of a longitudinal beam 1, a front cross beam 2, a middle cross beam 3, a rear cross beam 4, an anti-collision guard beam 6, an upper compression bracket 5, and a lower compression bracket 10, wherein the front cross beam 2, the middle cross beam 3, and the rear cross beam 4 are all arranged between the longitudinal beam 1, and the two ends of the front cross beam 2, the middle cross beam 3, and the rear cross beam 4 extend into the strip groove 101 and are fixed by bolts, and the positioning blocks 7 at the two ends of the front cross beam 2, the middle cross beam 3, and the rear cross beam 4 are clamped in the positioning clamping groove 102, and further, the first reinforcing rod 8 is welded in the first welding groove 201, the second welding groove 301, and the third welding groove 401 on the surface of the front cross beam 2, the middle cross beam 3, and the rear cross beam 4, and the second reinforcing rod 9 reinforces the structure of the first reinforcing rod 8, and the first reinforcing rod 8 and the second reinforcing rod 9 enhance the structural strength of the front cross beam 2, the middle cross beam 3, and the rear cross beam 4, thereby improving the rigidity and strength of the middle and rear floor frame assembly. Secondly, the anti-collision guard beam 6 is arranged on one side of the longitudinal beam 1, and the two ends of the anti-collision guard beam 6 are fixed to the longitudinal beam 1 by bolts, and the support rod 601 on the inner wall of the anti-collision guard beam 6 is stuck in the slot 103. When the vehicle is hit, the anti-collision guard beam 6 is deformed to absorb the energy of the impact. The anti-collision guard beam 6 protects the longitudinal and transverse beams and reduces their deformation during the collision, thereby reducing the damage caused by the impact to the middle and rear floor frame assembly. Furthermore, the upper compression bracket 5 and the lower compression bracket 10 are respectively arranged on the upper and lower surfaces of the front cross beam 2, the middle cross beam 3, and the rear cross beam 4, and the two ends of the upper compression bracket 5 are stuck in the upper clamping groove 104 and fixed by bolts, and the two ends of the lower compression bracket 10 are stuck in the lower clamping groove 105 and fixed by bolts. The setting of the upper compression bracket 5 and the lower compression bracket 10 enhances the compression resistance and load-bearing performance of the middle and rear floor frame assembly, thereby improving the structural stability and pressure resistance of the middle and rear floor frame assembly.

Claims

1. A mid-rear floor frame assembly with a novel structure, characterized in that: The invention comprises a longitudinal beam (1), a front cross beam (2), a middle cross beam (3), a rear cross beam (4) and an anti-collision protection beam (6), wherein the front cross beam (2) is arranged between the longitudinal beams (1), the middle cross beam (3) is arranged between the longitudinal beams (1) on one side of the front cross beam (2), and the rear cross beam (4) is arranged between the longitudinal beams (1) on one side of the middle cross beam (3). The outer wall of the longitudinal beam (1) on the side close to the front cross beam (2), the middle cross beam (3) and the rear cross beam (4) is provided with a strip groove (101), and the inner wall of the strip groove (101) is provided with positioning grooves (102) at equal intervals, and The positioning slots (102) correspond to the front cross beam (2), the middle cross beam (3) and the rear cross beam (4) respectively; slots (103) with equal spacing are arranged on the outer wall of the longitudinal beam (1) away from the front cross beam (2), the middle cross beam (3) and the rear cross beam (4); the anti-collision guard beam (6) is arranged on one side of the longitudinal beam (1), and both ends of the anti-collision guard beam (6) are connected to the longitudinal beam (1) by bolts; support rods (601) with equal spacing are welded on the inner wall of the anti-collision guard beam (6), and one end of the support rod (601) extends to the inside of the slot (103).

2. The middle and rear floor frame assembly with a novel structure according to claim 1 is characterized in that: An upper clamping groove (104) and a lower clamping groove (105) are respectively provided at both ends of the upper surface and the lower surface of the longitudinal beam (1).

3. The middle and rear floor frame assembly with a novel structure according to claim 1 is characterized in that: An upper pressure-resistant bracket (5) is provided above the front cross beam (2), the middle cross beam (3) and the rear cross beam (4), and both ends of the upper pressure-resistant bracket (5) extend into the interior of the upper clamping groove (104) and are connected to the longitudinal beam (1) via bolts.

4. The middle and rear floor frame assembly with a novel structure according to claim 1 is characterized in that: A lower pressure-resistant bracket (10) is provided below the front cross beam (2), the middle cross beam (3) and the rear cross beam (4), and both ends of the lower pressure-resistant bracket (10) extend into the interior of the lower clamping groove (105) and are connected to the longitudinal beam (1) via bolts.

5. The middle and rear floor frame assembly with a novel structure according to claim 1 is characterized in that: Both ends of the front cross beam (2), the middle cross beam (3) and the rear cross beam (4) extend into the interior of the strip-shaped groove (101) and are connected to the longitudinal beam (1) via bolts, and both ends of the front cross beam (2), the middle cross beam (3) and the rear cross beam (4) are welded with positioning blocks (7), and the positioning blocks (7) are tightly engaged with the positioning slots (102).

6. The middle and rear floor frame assembly with a novel structure according to claim 1 is characterized in that: A first welding groove (201), a second welding groove (301), and a third welding groove (401) are respectively arranged on both sides of the surface of the front cross beam (2), the middle cross beam (3), and the rear cross beam (4), and first reinforcing rods (8) are welded inside the first welding groove (201), the second welding groove (301), and the third welding groove (401), and second reinforcing rods (9) are welded between the first reinforcing rods (8).

7. The middle and rear floor frame assembly with a novel structure according to claim 4 is characterized in that: The lower anti-compression support (10) and the upper anti-compression support (5) are both tightly fitted with the front cross beam (2), the middle cross beam (3), and the rear cross beam (4), and the upper anti-compression support (5) and the lower anti-compression support (10) are both "I"-shaped structures.

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