CN110562330B - Automobile rear floor structure - Google Patents
Automobile rear floor structure Download PDFInfo
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- CN110562330B CN110562330B CN201910954232.3A CN201910954232A CN110562330B CN 110562330 B CN110562330 B CN 110562330B CN 201910954232 A CN201910954232 A CN 201910954232A CN 110562330 B CN110562330 B CN 110562330B
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- metal plate
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- rear floor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/20—Floors or bottom sub-units
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
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Abstract
The invention discloses an automobile rear floor structure which comprises a first metal plate, a second metal plate, a plurality of elastic supporting structures and a limiting structure, wherein the first metal plate and the second metal plate are arranged in parallel; the elastic support structures are positioned between the first metal plate and the second metal plate and are in strip shapes, the elastic support structures are arranged in parallel, and a gap is reserved between every two adjacent elastic support structures; the lower end of the limiting structure is fixed on the second metal plate, a limiting groove is formed in the upper end of the limiting structure, the bottom of the elastic supporting structure is located in the limiting groove, the top of the elastic supporting structure is fixed on the first metal plate, and a foam filling agent is filled between the first metal plate and the second metal plate. The invention has light weight, high strength and no volatilization of harmful gas. Due to the adoption of the hollow structure, the density of the rear floor structure is lower, and the rear floor structure plays a positive role in light weight of the automobile.
Description
Technical Field
The invention relates to an automobile rear floor structure, and belongs to the technical field of automobile part structures.
Background
The automobile rear floor sideboard is an important component of an automobile floor assembly, the upper edge of the automobile rear floor sideboard is connected with a rear floor, the lower part of the automobile rear floor sideboard is welded with a longitudinal beam, and the front part and the rear part of the automobile rear floor sideboard are connected with a hub bag and a rear apron board, so that the structural strength of the automobile rear floor sideboard directly influences the strength and the rigidity of an automobile body frame. At present, the rear floor side plates of a plurality of automobiles have defects in structural design, for example, the rear floor side plates adopt integral pieces formed by integral stamping, have higher weight, are not beneficial to the implementation of a light weight concept, and can volatilize harmful gas to influence the health of passengers.
Disclosure of Invention
The invention aims to provide an automobile rear floor structure which is light in weight, high in strength and free of harmful gas volatilization.
In order to solve the technical problems, the invention adopts the following technical scheme:
a rear floor structure of an automobile comprises a first metal plate, a second metal plate, a plurality of elastic supporting structures and a limiting structure, wherein the first metal plate and the second metal plate are arranged in parallel; the elastic support structures are positioned between the first metal plate and the second metal plate and are in strip shapes, the elastic support structures are arranged in parallel, and a gap is reserved between every two adjacent elastic support structures; the lower end of the limiting structure is fixed on the second metal plate, the upper end of the limiting structure is provided with a limiting groove, the bottom of the elastic supporting structure is positioned in the limiting groove, the top of the elastic supporting structure is fixed on the first metal plate, and a foam filling agent is filled between the first metal plate and the second metal plate; the elastic supporting structure consists of a first supporting plate, a second supporting plate, a middle connecting plate, a supporting column and a top supporting plate, the first supporting plate and the second supporting plate are identical in structure and are obliquely arranged, the tops of the first supporting plate and the second supporting plate are fixedly connected with the middle connecting plate, the bottom of the supporting column is fixed at the top of the middle connecting plate, the top supporting plate is horizontally arranged, the top supporting plate is fixedly connected with the top of the supporting column, and the top surface of the top supporting plate is abutted against the bottom surface of the first metal plate; the lower parts of the first supporting plate and the second supporting plate are provided with rectangular through holes, the upper surface of the second metal plate is provided with a plurality of reinforcing plates which are parallel to each other, the reinforcing plates are perpendicular to the elastic supporting structures, the tops of the reinforcing plates abut against the elastic supporting structures, and the reinforcing plates are located in the through holes.
In the foregoing rear floor structure for an automobile, the first supporting plate includes a vertical plate, the vertical plate is located at a lower end of the first supporting plate, and an area of the top supporting plate is larger than a cross-sectional area of the supporting column.
In the automobile rear floor structure, the top supporting plate is provided with a first threaded hole, the first metal plate is provided with a first counter bore at a position corresponding to the first threaded hole, and the first counter bore and the first threaded hole are internally provided with a first fixing bolt.
In the automobile rear floor structure, the lower part of the limiting structure is provided with a second threaded hole, a second counter bore is arranged at a position, corresponding to the second threaded hole, on the second metal plate, and a second fixing bolt is arranged in the second threaded hole and the second counter bore.
In the floor structure behind foretell car, limit structure's lower part has spacing sand grip, on the second metal sheet with the position that spacing sand grip corresponds has the spacing groove, spacing sand grip is located the spacing inslot, the second screw hole is located on the spacing sand grip.
In the above rear floor structure for an automobile, the lower portions of the first support plate and the second support plate each have a rectangular through hole.
The method for manufacturing the automobile rear floor with the reinforcing structure comprises the following steps:
1. heating the mould to 40 ℃, and coating a release agent on the mould;
2. polishing, wiping and drying the surfaces of the first metal plate and the second metal plate, and then heating to 40 ℃;
3. laying a second metal plate in the mold, fixing the limiting structure on the second metal plate, and arranging the elastic supporting structure in a limiting groove of the limiting structure;
4. laying a layer of plastic film on the upper surface of the top support plate, filling foam filler above the second metal plate in the mold, and cutting off the redundant foam filler along the upper surface of the top support plate;
5. laying a first metal plate on the elastic supporting structure, and fixing the first metal plate on the elastic supporting structure;
6. and (3) applying pressure on the first metal plate, keeping the pressure for 30 minutes, demolding and trimming to obtain a finished product.
Compared with the prior art, the invention not only has lighter weight, but also has higher strength, and can not volatilize harmful gas. Due to the adoption of the hollow structure, the rear floor has lower structural density and plays a positive role in the light weight of the automobile; and, set up the elastic support structure of special construction between first metal sheet and second metal sheet for this floor possesses certain elasticity under the prerequisite that possesses anticipated intensity behind the car, can cushion the car and hang the transmission vibration, improves the travelling comfort of vehicle. When the rear floor supports pressure greatly, if the vehicle bumps, the first supporting plate and the second supporting plate of the elastic supporting structure deform, and the vibration amplitude generated by bumping in the middle and rear seats is reduced, so that the comfort of the vehicle is improved. Because the material that can produce harmful volatile gas all is between first metal sheet and second metal sheet, so this floor behind the car can not produce harmful volatile gas, belongs to the environmental protection design, and flame retardant property is good. Elastic support structure plays the intensity that promotes back floor fore-and-aft direction, and the reinforcing plate promotes the intensity of back floor left right direction to can make foam filling agent get into elastic support structure more easily through designing the thru hole in elastic support structure's first backup pad and second backup pad in, make more abundant that foam filling agent filled, and the reinforcing plate is located the thru hole, can not take place to interfere with elastic support structure.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1;
FIG. 3 is a perspective view of the flexible support structure;
FIG. 4 is a schematic view of the internal structure of the back panel structure.
Reference numerals: 1-a first metal plate, 2-an elastic support structure, 3-a second metal plate, 4-a first counter bore, 5-a first fixing bolt, 6-a first threaded hole, 7-a second support plate, 8-a limiting groove, 9-a limiting structure, 10-a second threaded hole, 11-a second fixing bolt, 12-a second counter bore, 13-a limiting convex strip, 14-a vertical plate, 15-a first support plate, 16-a middle connecting plate, 17-a support column, 18-a top support plate, 19-a reinforcing plate, and 20-a through hole.
The invention is further described with reference to the following figures and detailed description.
Detailed Description
Example 1 of the invention: a rear floor structure of an automobile comprises a first metal plate 1, a second metal plate 3, a plurality of elastic supporting structures 2 and a limiting structure 9, wherein the first metal plate 1 and the second metal plate 3 are arranged in parallel; the elastic support structures 2 are positioned between the first metal plate 1 and the second metal plate 3, the elastic support structures 2 are in a strip shape, the elastic support structures 2 are arranged in parallel, and a gap is reserved between every two adjacent elastic support structures 2; the lower end of the limiting structure 9 is fixed on the second metal plate 3, the upper end of the limiting structure 9 is provided with a limiting groove 8, the bottom of the elastic supporting structure 2 is positioned in the limiting groove 8, the top of the elastic supporting structure 2 is fixed on the first metal plate 1, and a foam filling agent is filled between the first metal plate 1 and the second metal plate 3; the elastic supporting structure 2 comprises a first supporting plate 15, a second supporting plate 7, a middle connecting plate 16, a supporting column 17 and a top supporting plate 18, the first supporting plate 15 and the second supporting plate 7 are identical in structure, the first supporting plate 15 and the second supporting plate 7 are obliquely arranged, the tops of the first supporting plate 15 and the second supporting plate 7 are fixedly connected with the middle connecting plate 16, the bottom of the supporting column 17 is fixed at the top of the middle connecting plate 16, the top supporting plate 18 is horizontally arranged, the top supporting plate 18 is fixedly connected with the top of the supporting column 17, and the top surface of the top supporting plate 18 abuts against the bottom surface of the first metal plate 1; the lower parts of the first supporting plate 15 and the second supporting plate 7 are respectively provided with a rectangular through hole 20, the upper surface of the second metal plate 3 is provided with a plurality of reinforcing plates 19 which are parallel to each other, the reinforcing plates 19 are perpendicular to the elastic supporting structure 2, the top of each reinforcing plate 19 abuts against the elastic supporting structure 2, and the reinforcing plates 19 are positioned in the through holes.
Example 2: a rear floor structure of an automobile comprises a first metal plate 1, a second metal plate 3, a plurality of elastic supporting structures 2 and a limiting structure 9, wherein the first metal plate 1 and the second metal plate 3 are arranged in parallel; the elastic support structures 2 are positioned between the first metal plate 1 and the second metal plate 3, the elastic support structures 2 are in a strip shape, the elastic support structures 2 are arranged in parallel, and a gap is reserved between every two adjacent elastic support structures 2; the lower end of the limiting structure 9 is fixed on the second metal plate 3, the upper end of the limiting structure 9 is provided with a limiting groove 8, the bottom of the elastic supporting structure 2 is positioned in the limiting groove 8, the top of the elastic supporting structure 2 is fixed on the first metal plate 1, and a foam filling agent is filled between the first metal plate 1 and the second metal plate 3; the elastic supporting structure 2 comprises a first supporting plate 15, a second supporting plate 7, a middle connecting plate 16, a supporting column 17 and a top supporting plate 18, the first supporting plate 15 and the second supporting plate 7 are identical in structure, the first supporting plate 15 and the second supporting plate 7 are obliquely arranged, the tops of the first supporting plate 15 and the second supporting plate 7 are fixedly connected with the middle connecting plate 16, the bottom of the supporting column 17 is fixed at the top of the middle connecting plate 16, the top supporting plate 18 is horizontally arranged, the top supporting plate 18 is fixedly connected with the top of the supporting column 17, and the top surface of the top supporting plate 18 abuts against the bottom surface of the first metal plate 1; the lower parts of the first supporting plate 15 and the second supporting plate 7 are respectively provided with a rectangular through hole 20, the upper surface of the second metal plate 3 is provided with a plurality of reinforcing plates 19 which are parallel to each other, the reinforcing plates 19 are perpendicular to the elastic supporting structure 2, the top of each reinforcing plate 19 abuts against the elastic supporting structure 2, and the reinforcing plates 19 are positioned in the through holes.
The first support plate 15 includes a vertical plate 14, the vertical plate 14 is located at the lower end of the first support plate 15, and the top support plate 18 has an area larger than the cross-sectional area of the support column 17. The top support plate 18 is provided with a first threaded hole 6, a first counter bore 4 is formed in the position, corresponding to the first threaded hole 6, of the first metal plate 1, and a first fixing bolt 5 is arranged in the first counter bore 4 and the first threaded hole 6.
Example 3: a rear floor structure of an automobile comprises a first metal plate 1, a second metal plate 3, a plurality of elastic supporting structures 2 and a limiting structure 9, wherein the first metal plate 1 and the second metal plate 3 are arranged in parallel; the elastic support structures 2 are positioned between the first metal plate 1 and the second metal plate 3, the elastic support structures 2 are in a strip shape, the elastic support structures 2 are arranged in parallel, and a gap is reserved between every two adjacent elastic support structures 2; the lower end of the limiting structure 9 is fixed on the second metal plate 3, the upper end of the limiting structure 9 is provided with a limiting groove 8, the bottom of the elastic supporting structure 2 is positioned in the limiting groove 8, the top of the elastic supporting structure 2 is fixed on the first metal plate 1, and a foam filling agent is filled between the first metal plate 1 and the second metal plate 3; the elastic supporting structure 2 comprises a first supporting plate 15, a second supporting plate 7, a middle connecting plate 16, a supporting column 17 and a top supporting plate 18, the first supporting plate 15 and the second supporting plate 7 are identical in structure, the first supporting plate 15 and the second supporting plate 7 are obliquely arranged, the tops of the first supporting plate 15 and the second supporting plate 7 are fixedly connected with the middle connecting plate 16, the bottom of the supporting column 17 is fixed at the top of the middle connecting plate 16, the top supporting plate 18 is horizontally arranged, the top supporting plate 18 is fixedly connected with the top of the supporting column 17, and the top surface of the top supporting plate 18 abuts against the bottom surface of the first metal plate 1; the lower parts of the first supporting plate 15 and the second supporting plate 7 are respectively provided with a rectangular through hole 20, the upper surface of the second metal plate 3 is provided with a plurality of reinforcing plates 19 which are parallel to each other, the reinforcing plates 19 are perpendicular to the elastic supporting structure 2, the top of each reinforcing plate 19 abuts against the elastic supporting structure 2, and the reinforcing plates 19 are positioned in the through holes.
The first support plate 15 includes a vertical plate 14, the vertical plate 14 is located at the lower end of the first support plate 15, and the top support plate 18 has an area larger than the cross-sectional area of the support column 17.
The top support plate 18 is provided with a first threaded hole 6, a first counter bore 4 is formed in the position, corresponding to the first threaded hole 6, of the first metal plate 1, and a first fixing bolt 5 is arranged in the first counter bore 4 and the first threaded hole 6.
The lower part of the limiting structure 9 is provided with a second threaded hole 10, a second counter bore 12 is arranged on the second metal plate 3 corresponding to the second threaded hole 10, and a second fixing bolt 11 is arranged in the second threaded hole 10 and the second counter bore 12.
The lower part of limiting structure 9 has spacing sand grip 13, the second metal sheet 3 go up with the position that spacing sand grip 13 corresponds has spacing groove 8, spacing sand grip 13 is located in spacing groove 8, second screw hole 10 is located on the spacing sand grip 13. The manufacturing method of the automobile rear floor with the reinforcing structure according to the above embodiment includes the steps of:
1. heating the mould to 40 ℃, and coating a release agent on the mould;
2. polishing, wiping and drying the surfaces of the first metal plate (1) and the second metal plate (3), and then heating to 40 ℃;
3. laying a second metal plate (3) in the mold, fixing a limiting structure (9) on the second metal plate (3), and arranging an elastic supporting structure (2) in a limiting groove (8) of the limiting structure (9);
4. laying a layer of plastic film on the upper surface of the top support plate (18), filling foam filler above the second metal plate (3) in the mould, and cutting off the redundant foam filler along the upper surface of the top support plate (18);
5. laying a first metal plate (1) on an elastic supporting structure (2), and fixing the first metal plate (1) on the elastic supporting structure (2);
6. and (3) applying pressure on the first metal plate (1), keeping the pressure for 30 minutes, demolding and trimming to obtain a finished product.
The working principle of one embodiment of the invention is as follows: due to the adoption of the hollow structure, the rear floor has lower structural density and plays a positive role in the light weight of the automobile; and, set up the elastic support structure 2 of special construction between first metal sheet 1 and second metal sheet 3 for this car rear floor possesses certain elasticity under the prerequisite that possesses anticipated intensity, can cushion the car and hang the transmission vibration, improves the travelling comfort of vehicle. When the back floor supports pressure great, jolt like the vehicle takes place, the first backup pad 15 and the second backup pad 17 of elastic support structure 2 can take place to warp, and the amplitude of vibration owing to jolt the production is reduced to the neutralization back seat, promotes the vehicle travelling comfort.
Because the material that can produce harmful volatile gas all is between first metal sheet 1 and second metal sheet 3, so this floor behind the car can not produce harmful volatile gas, belongs to the environmental protection design, and flame retardant property is good. Elastic support structure 2 plays the intensity that promotes back floor fore-and-aft direction, and reinforcing plate 19 promotes the intensity of back floor left right direction to through design thru hole 20 can make foam filling agent get into elastic support structure 2 more easily on elastic support structure's first backup pad 1 and second backup pad 3 in, make more abundant that foam filling agent filled, and reinforcing plate 19 is located thru hole 20, can not take place to interfere with elastic support structure 2.
Claims (5)
1. The automobile rear floor structure is characterized by comprising a first metal plate (1), a second metal plate (3), a plurality of elastic supporting structures (2) and a limiting structure (9), wherein the first metal plate (1) and the second metal plate (3) are arranged in parallel; the elastic support structures (2) are positioned between the first metal plate (1) and the second metal plate (3), the elastic support structures (2) are in a strip shape, the elastic support structures (2) are arranged in parallel, and a gap is reserved between every two adjacent elastic support structures (2); the lower end of the limiting structure (9) is fixed on the second metal plate (3), the upper end of the limiting structure (9) is provided with a limiting groove (8), the bottom of the elastic supporting structure (2) is positioned in the limiting groove (8), the top of the elastic supporting structure (2) is fixed on the first metal plate (1), and a foam filling agent is filled between the first metal plate (1) and the second metal plate (3); the elastic supporting structure (2) is composed of a first supporting plate (15), a second supporting plate (7), a middle connecting plate (16), a supporting column (17) and a top supporting plate (18), the first supporting plate (15) and the second supporting plate (7) are identical in structure, the first supporting plate (15) and the second supporting plate (7) are obliquely arranged, the tops of the first supporting plate (15) and the second supporting plate (7) are fixedly connected with the middle connecting plate (16), the bottom of the supporting column (17) is fixed to the top of the middle connecting plate (16), the top supporting plate (18) is horizontally arranged, the top supporting plate (18) is fixedly connected with the top of the supporting column (17), and the top surface of the top supporting plate (18) abuts against the bottom surface of the first metal plate (1); the lower parts of the first supporting plate (15) and the second supporting plate (7) are respectively provided with a rectangular through hole (20), the upper surface of the second metal plate (3) is provided with a plurality of reinforcing plates (19) which are parallel to each other, the reinforcing plates (19) are perpendicular to the elastic supporting structure (2), the top of each reinforcing plate (19) abuts against the elastic supporting structure (2), and the reinforcing plates (19) are located in the through holes.
2. The vehicle rear floor structure according to claim 1, wherein the first support plate (15) includes a vertical plate (14), the vertical plate (14) being located at a lower end of the first support plate (15), and the top support plate (18) has an area larger than a cross-sectional area of the support pillar (17).
3. The vehicle rear floor structure according to claim 1, wherein the top support plate (18) has a first threaded hole (6), the first metal plate (1) has a first counter bore (4) at a position corresponding to the first threaded hole (6), and the first counter bore (4) and the first threaded hole (6) have a first fixing bolt (5) therein.
4. The vehicle rear floor structure according to claim 1, wherein the lower portion of the limiting structure (9) is provided with a second threaded hole (10), a second counter bore (12) is formed in the second metal plate (3) at a position corresponding to the second threaded hole (10), and a second fixing bolt (11) is arranged in the second threaded hole (10) and the second counter bore (12).
5. The method for manufacturing a rear floor of an automobile according to claim 4, comprising the steps of:
(1) heating the mould to 40 ℃, and coating a release agent on the mould;
(2) polishing, wiping and drying the surfaces of the first metal plate (1) and the second metal plate (3), and then heating to 40 ℃;
(3) laying a second metal plate (3) in the mold, fixing a limiting structure (9) on the second metal plate (3), and arranging an elastic supporting structure (2) in a limiting groove (8) of the limiting structure (9);
(4) laying a layer of plastic film on the upper surface of the top support plate (18), filling foam filler above the second metal plate (3) in the mold, and cutting off the redundant foam filler along the upper surface of the top support plate (18);
(5) laying the first metal plate (1) on the elastic supporting structure (2), and fixing the first metal plate (1) on the elastic supporting structure (2);
(6) and applying pressure on the first metal plate (1), keeping the pressure for 30 minutes, demolding and trimming to obtain a finished product.
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CN201910954232.3A CN110562330B (en) | 2019-10-09 | 2019-10-09 | Automobile rear floor structure |
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CN201910954232.3A CN110562330B (en) | 2019-10-09 | 2019-10-09 | Automobile rear floor structure |
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CN110562330A CN110562330A (en) | 2019-12-13 |
CN110562330B true CN110562330B (en) | 2022-03-04 |
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CN201910954232.3A Active CN110562330B (en) | 2019-10-09 | 2019-10-09 | Automobile rear floor structure |
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Citations (8)
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JPH01119481A (en) * | 1987-10-30 | 1989-05-11 | Mazda Motor Corp | Floor structure of automobile |
JPH111182A (en) * | 1997-06-13 | 1999-01-06 | Yanmar Agricult Equip Co Ltd | Floor structure of rice planter for riding |
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2019
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JPH01119481A (en) * | 1987-10-30 | 1989-05-11 | Mazda Motor Corp | Floor structure of automobile |
JPH111182A (en) * | 1997-06-13 | 1999-01-06 | Yanmar Agricult Equip Co Ltd | Floor structure of rice planter for riding |
CN205311719U (en) * | 2015-12-23 | 2016-06-15 | 江苏美龙航空部件有限公司 | Cavity floor for passenger train |
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