Front auxiliary frame structure of automobile

Abstract

The utility model relates to the technical field of frame structures, and discloses an automobile front auxiliary frame structure which comprises a front cross beam, an arc sleeve is movably connected to the outer surface of the front cross beam, a first connecting piece is fixedly connected to the front face of the arc sleeve, and a built-in groove is formed in the inner surface of the first connecting piece. A driving rod is movably connected to the inner surface of the built-in groove, a second connecting piece is movably connected to the front end of the driving rod, a telescopic block is arranged on the inner surface of the second connecting piece, and connecting rods are fixedly connected to the two sides of the front face of the front cross beam, so that direct impact of a road surface and wheels on a vehicle body is reduced, and therefore abrasion and deformation of the vehicle body are reduced; according to the auxiliary frame, the automobile body structure is protected, suspension is more stable, the control stability of an automobile is improved, meanwhile, the local pressure resistance of the auxiliary frame can be improved through the arrangement of the reinforcing blocks, the structural strength and rigidity of the auxiliary frame are enhanced, the auxiliary frame is firmer and more stable when bearing external loads and impacts, and the safety of the automobile is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle frame structures, and more specifically to a front auxiliary vehicle frame structure of an automobile. Background Art

[0002] The automobile subframe is part of the automobile chassis structure, usually referring to the structural member located between the front and rear suspensions in addition to the main frame. It can support and fix the suspension system, improve the rigidity and load-bearing capacity of the vehicle body, and protect important components such as the engine and transmission.

[0003] When the existing front subframe structure of an automobile is subjected to a large impact or torque, the insufficient toughness of the front subframe of the automobile will cause the frame structure to deform, which will affect the stability of the vehicle; and the strength and rigidity of the front subframe structure of the automobile may be insufficient, causing the vehicle body to be easily deformed or damaged when subjected to external loads and impacts, affecting the vehicle's handling performance and driving stability. Utility Model Content

[0004] In order to overcome the above defects of the prior art, the utility model provides a front subframe structure of an automobile to solve the problems existing in the above background technology.

[0005] The utility model provides the following technical solution: a front sub-frame structure of an automobile, comprising a front crossbeam, an arc sleeve movably connected to the outer surface of the front crossbeam, a first connecting piece fixedly connected to the front surface of the arc sleeve, a built-in groove opened on the inner surface of the first connecting piece, a driving rod movably connected to the inner surface of the built-in groove, a second connecting piece movably connected to the front end of the driving rod, a telescopic block provided on the inner surface of the second connecting piece, connecting rods fixedly connected to both sides of the front surface of the front crossbeam, a rear crossbeam fixedly connected to the back of the connecting rod, and a reinforcing block fixedly connected to one side of the connecting rod;

[0006] Furthermore, a first bending rod is fixedly connected to both sides of the top of the front beam, the back of the connecting rod is fixedly connected to the front beam, the front of the connecting rod is fixedly connected to the rear beam, and the top of the rear beam is fixedly connected to the second bending rod.

[0007] Furthermore, a through hole is provided on the inner surface of the arc sleeve, and the inner surface of the through hole is movably connected to the front cross beam, the outside of the rear cross beam is fixedly connected to the fixed sleeve, the back side of the fixed sleeve is fixedly connected to the second connecting piece, and the top and bottom of the inner surface of the second connecting piece are provided with limiting grooves, the top and bottom of the front end of the driving rod are fixedly connected to the limiting blocks that are adapted to the limiting grooves, one side of the driving rod is fixedly connected to a telescopic block, the front end of the driving rod is movably connected to a fixing pin, and the outer surface of the fixing pin is movably connected to the driving rod and the first connecting piece.

[0008] Furthermore, one side of the outer surface of the telescopic block is movably connected to a connecting tube, one side of the telescopic block is fixedly connected to a blocking piece, the inner surface of the connecting tube is provided with a placement groove, the inner surface of the placement groove is movably connected to a spring, and the other side of the spring is movably connected to a blocking piece.

[0009] Furthermore, the reinforcement block includes a top plate, the top of the top plate is fixedly connected to a rib plate, the bottom of the top plate is fixedly connected to an inclined plate, a right-angle block is fixedly connected at the angle between the inclined plate and the top plate, the other side of the inclined plate is fixedly connected to a folding plate, the other side of the top plate and the folding plate have the same width, the rear ends of the top plate and the folding plate are fixedly connected to a front cross beam, and the front ends of the top plate and the folding plate are fixedly connected to a connecting rod.

[0010] Furthermore, the tops of the first bending rod and the second bending rod are fixedly connected to mounting seats, blocks are fixedly connected to both sides of the top of the mounting seats, a first mounting hole is opened in the middle of the block, and one end of the block is fixedly connected to a side panel, a second mounting hole is opened in the middle of the side panel.

[0011] Technical effects and advantages of the utility model:

[0012] 1. According to the utility model, after the front subframe is hit, the front cross beam is stressed and the arc sleeve is stressed at the same time. Due to the toughness of the front cross beam and the arc sleeve, the arc sleeve moves to one side. When the arc sleeve moves, the first connecting member moves to one side. When the first connecting member moves to one side, the driving rod connected to the built-in groove thereof moves. When the fixing pin is set, the front end of the driving rod is fixed so that the rear end of the driving rod opens to both sides. When the rear end of the driving rod opens to both sides, the telescopic block is stressed so that the blocking piece moves to the inside of the placement groove. At this time, the spring contracts to offset the impact force of the front cross beam, which is beneficial to reduce the direct impact of the road surface and the wheels on the vehicle body, thereby reducing the wear and deformation of the vehicle body, protecting the vehicle body structure, making the suspension more stable, and thus improving the handling stability of the vehicle.

[0013] 2. The overall shape of the reinforcement block of the utility model is similar to a J shape. The folding plate is inclined toward the connecting rod through the setting of the inclined plate. This bending design can increase the strength of the reinforcement block and provide convenience when welding the folding plate and the connecting rod. It is beneficial to increase the local compressive resistance of the subframe through the setting of the reinforcement block, enhance its structural strength and rigidity, and make the subframe more solid and stable when subjected to external loads and impacts, thereby improving vehicle safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 This is a schematic diagram of the driving rod structure of the utility model.

[0016] Figure 3 It is a schematic diagram of the cross-sectional structure of the connecting tube of the utility model.

[0017] Figure 4 This is a schematic diagram of the reinforcing block structure of the utility model.

[0018] Figure 5 It is a schematic diagram of the mounting seat structure of the utility model.

[0019] The accompanying drawings are marked as follows: 1. front crossbeam; 101. first bending rod; 102. connecting rod; 103. rear crossbeam; 104. second bending rod; 2. arc sleeve; 201. through hole; 202. first connecting member; 203. built-in groove; 204. fixing pin; 205. driving rod; 206. second connecting member; 207. limiting groove; 208. fixing sleeve; 3. telescopic block; 301. connecting tube; 302. baffle; 303. placement groove; 304. spring; 4. reinforcement block; 401. top plate; 402. rib plate; 403. flat angle block; 404. inclined plate; 405. folding plate; 5. mounting seat; 501. block; 5011. first mounting hole; 502. side plate; 5022. second mounting hole. DETAILED DESCRIPTION

[0020] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative. The automobile front subframe structure involved in the present invention is not limited to the various structures recorded in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0021] Reference Figure 1-5 The utility model provides a front subframe structure of an automobile, including a front crossbeam 1, an outer surface of the front crossbeam 1 is movably connected with an arc sleeve 2, the front surface of the arc sleeve 2 is fixedly connected with a first connecting piece 202, the inner surface of the first connecting piece 202 is provided with a built-in groove 203, the inner surface of the built-in groove 203 is movably connected with a driving rod 205, the front end of the driving rod 205 is movably connected with a second connecting piece 206, the inner surface of the second connecting piece 206 is provided with a telescopic block 3, both sides of the front side of the front crossbeam 1 are fixedly connected with connecting rods 102, the back side of the connecting rod 102 is fixedly connected with a rear crossbeam 103, and one side of the connecting rod 102 is fixedly connected with a reinforcing block 4.

[0022] In a preferred embodiment, the first bending rod 101 is fixedly connected to both sides of the top of the front beam 1, the back of the connecting rod 102 is fixedly connected to the front beam 1, the front of the connecting rod 102 is fixedly connected to the rear beam 103, and the top of the rear beam 103 is fixedly connected to the second bending rod 104.

[0023] In a preferred embodiment, a through hole 201 is provided on the inner surface of the arc sleeve 2, and the inner surface of the through hole 201 is movably connected to the front cross beam 1, and the outside of the rear cross beam 103 is fixedly connected to a fixing sleeve 208, and the back of the fixing sleeve 208 is fixedly connected to a second connecting member 206, and limiting grooves 207 are provided at the top and bottom of the inner surface of the second connecting member 206, and the top and bottom of the front end of the driving rod 205 are fixedly connected to the limiting blocks and are adapted to the limiting grooves 207, one side of the driving rod 205 is fixedly connected to the telescopic block 3, the front end of the driving rod 205 is movably connected to the fixing pin 204, and the outer surface of the fixing pin 204 is movably connected to the driving rod 205 and the first connecting member 202.

[0024] In a preferred embodiment, one side of the outer surface of the telescopic block 3 is movably connected to a connecting tube 301, one side of the telescopic block 3 is fixedly connected to a blocking piece 302, the inner surface of the connecting tube 301 is provided with a placement groove 303, the inner surface of the placement groove 303 is movably connected to a spring 304, and the other side of the spring 304 is movably connected to the blocking piece 302.

[0025] In a preferred embodiment, the reinforcing block 4 includes a top plate 401, the top of the top plate 401 is fixedly connected to a rib plate 402, the bottom of the top plate 401 is fixedly connected to an inclined plate 404, a right-angle block 403 is fixedly connected at the angle between the inclined plate 404 and the top plate 401, a folding plate 405 is fixedly connected to the other side of the inclined plate 404, the other side of the top plate 401 and the folding plate 405 have the same width, the rear ends of the top plate 401 and the folding plate 405 are fixedly connected to a front cross beam 1, and the front ends of the top plate 401 and the folding plate 405 are fixedly connected to a connecting rod 102.

[0026] In a preferred embodiment, the tops of the first bending rod 101 and the second bending rod 104 are fixedly connected to a mounting base 5, the two sides of the top of the mounting base 5 are fixedly connected to blocks 501, a first mounting hole 5011 is opened in the middle of the block 501, and one end of the block 501 is fixedly connected to a side panel 502, and a second mounting hole 5022 is opened in the middle of the side panel 502.

[0027] The working principle of the utility model is as follows: after the front sub-frame is hit, the front cross beam 1 is stressed and the arc sleeve 2 is stressed at the same time. Since the front cross beam 1 and the arc sleeve 2 have toughness, the arc sleeve 2 moves to one side. When the arc sleeve 2 moves, the first connecting member 202 moves to one side. When the first connecting member 202 moves to one side, the driving rod 205 connected to its built-in groove 203 moves. When the fixing pin 204 is set, the front end of the driving rod 205 is fixed so that the rear end of the driving rod 205 opens to both sides. When the rear end of the driving rod 205 opens to both sides, the telescopic block 3 is stressed, so that the blocking piece 302 moves to the inner side of the placement groove 303. At this time, the spring 304 contracts to offset the front cross beam 1 from the impact force, which is beneficial to reduce the direct impact of the road and wheels on the vehicle body, thereby reducing the wear and deformation of the vehicle body, protecting the vehicle body structure, making the suspension more stable, and thus improving the handling stability of the vehicle; the overall shape of the reinforcement block 4 is similar to a J shape, and the folding plate 405 is inclined toward the connecting rod 102 through the setting of the inclined plate 404. The strength of the reinforcement block 4 can be increased through this bending design, and it can provide convenience when the folding plate 405 is welded with the connecting rod 102, which is beneficial to increase the local compressive resistance of the subframe through the setting of the reinforcement block 4, enhance its structural strength and rigidity, make the subframe more solid and stable when subjected to external loads and impacts, and improve vehicle safety.

Claims

1. A front subframe structure of an automobile, comprising a front crossbeam (1), characterized in that: The outer surface of the front cross beam (1) is movably connected to a circular arc sleeve (2), the front surface of the circular arc sleeve (2) is fixedly connected to a first connecting piece (202), the inner surface of the first connecting piece (202) is provided with a built-in groove (203), the inner surface of the built-in groove (203) is movably connected to a driving rod (205), the front end of the driving rod (205) is movably connected to a second connecting piece (206), the inner surface of the second connecting piece (206) is provided with a telescopic block (3), the two sides of the front surface of the front cross beam (1) are fixedly connected to connecting rods (102), the back surface of the connecting rod (102) is fixedly connected to a rear cross beam (103), and one side of the connecting rod (102) is fixedly connected to a reinforcing block (4).

2. The front subframe structure of an automobile according to claim 1, characterized in that: The first bending rods (101) are fixedly connected to both sides of the top of the front crossbeam (1), the back of the connecting rod (102) is fixedly connected to the front crossbeam (103), the front of the connecting rod (102) is fixedly connected to the rear crossbeam (103), and the top of the rear crossbeam (103) is fixedly connected to the second bending rod (104).

3. The front subframe structure of an automobile according to claim 1, characterized in that: The inner surface of the arc sleeve (2) is provided with a through hole (201), the inner surface of the through hole (201) is movably connected to the front cross beam (1), the outer side of the rear cross beam (103) is fixedly connected to a fixing sleeve (208), the back side of the fixing sleeve (208) is fixedly connected to a second connecting piece (206), the top and bottom of the inner surface of the second connecting piece (206) are provided with a limiting groove (207), the top and bottom of the front end of the driving rod (205) are fixedly connected to a limiting block that is matched with the limiting groove (207), one side of the driving rod (205) is fixedly connected to a telescopic block (3), the front end of the driving rod (205) is movably connected to a fixing pin (204), and the outer surface of the fixing pin (204) is movably connected to the driving rod (205) and the first connecting piece (202).

4. The front subframe structure of an automobile according to claim 1, characterized in that: One side of the outer surface of the telescopic block (3) is movably connected to a connecting tube (301), one side of the telescopic block (3) is fixedly connected to a blocking piece (302), the inner surface of the connecting tube (301) is provided with a placement groove (303), the inner surface of the placement groove (303) is movably connected to a spring (304), and the other side of the spring (304) is movably connected to the blocking piece (302).

5. The front subframe structure of an automobile according to claim 1, characterized in that: The reinforcing block (4) comprises a top plate (401), the top of the top plate (401) is fixedly connected to a rib plate (402), the bottom of the top plate (401) is fixedly connected to an inclined plate (404), a right angle block (403) is fixedly connected to the angle between the inclined plate (404) and the top plate (401), a folding plate (405) is fixedly connected to the other side of the inclined plate (404), the other side of the top plate (401) and the folding plate (405) are of equal width, the rear ends of the top plate (401) and the folding plate (405) are fixedly connected to a front cross beam (1), and the front ends of the top plate (401) and the folding plate (405) are fixedly connected to a connecting rod (102).

6. The front subframe structure of an automobile according to claim 2, characterized in that: The tops of the first bending rod (101) and the second bending rod (104) are both fixedly connected to a mounting seat (5), the two sides of the top of the mounting seat (5) are fixedly connected to a block (501), a first mounting hole (5011) is provided in the middle of the block (501), one end of the block (501) is fixedly connected to a side plate (502), and a second mounting hole (5022) is provided in the middle of the side plate (502).

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