CN107985420B - Car truss-like latent beam structure of preventing and connection structure thereof - Google Patents

Abstract

The invention discloses an automobile truss type anti-submersible beam structure, comprising a support pipe, a locking structure and a fixing base, two ends of the supporting pipe are respectively fixedly connected with the locking structure, and the locking structure is bolted to the fixing base; The buckle structure is provided with a communication hole in the transverse direction, and the two ends of the support pipe are respectively fixed in the communication hole of a lock structure. The invention also discloses a connection structure of an automobile truss type anti-submersible beam structure. The support tube of the invention replaces the traditional anti-submerged beam with complex beam system, the support tube has good rigidity, light weight and low manufacturing cost; the upper part of the support tube is in contact with the lower foam board of the rear seat, which can effectively reduce the occurrence of automobile accidents. In the event of a collision, the rear occupant's body moves down and moves forward due to the cushion of the rear seat diving. Cavity echoes generated by the upper surface of the anti-submersible beam and unable to fill the cavity inside the anti-submersible beam.

Description

Automobile truss type anti-submersible beam structure and its connecting structure

technical field

The invention belongs to the technical field of automobile rear floor installation, in particular to an automobile truss type anti-submerged beam structure and a connection structure thereof.

Background technique

At present, the rear floor of the vehicle is usually designed to be relatively flat, and most of the rear seats lack anti-submersible beams. When the car is in a collision, the rear occupants are prone to dive and move forward, causing the body of the rear occupants to be injured.

In order to improve the riding safety factor of the rear occupants, various anti-submersible beam structures have been manufactured and used successively. For example, the Chinese patent with the application number of 201520861810.6 announces a "seat anti-submersible beam", which consists of an anti-submersible beam body, a left mounting plate, a right mounting plate and two support plates; the two support plates are welded on the anti-submersible beam. In the beam body; the left mounting plate and the right mounting plate are respectively installed on the left and right ends of the anti-submerged beam body, and are respectively welded on the anti-submerged beam body by flanging. The anti-submersible beam is fixed on the upper plate of the rear seat beam and the rear floor by 8 bolts. The mass is large, the installation bolts are many, and the versatility is poor. Moreover, the cavity formed in the body of the anti-submersible beam is prone to cavity echo; Chinese Patent No. 201220356528.9, announcing an "automobile rear floor with rear seat anti-submersion beam structure", including a rear floor body, and rear seats are provided above the front end of the rear floor body and directly below the rear seats Anti-submersion beam, the cross-section of the rear seat anti-submergence beam is in the shape of a "ji", and the bottom edge and both ends of the rear seat anti-submergence beam are welded with the rear floor body to form a first closed cavity. The top surface of the anti-submersion beam of the seat is provided with mounting holes for installing the rear seat, and the several-shaped rear seat anti-submersion beam also has the problems of large mass and poor NHV performance.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an automobile truss type anti-submersible beam structure and its connecting structure, which are light in structure, convenient in installation, high in versatility and good in NHV performance.

In order to achieve the above purpose, the technical scheme adopted in the present invention is: an automobile truss type anti-submersible beam structure, comprising a support pipe, a locking structure and a fixed base, and the two ends of the support pipe are respectively fixedly connected with the locking structure, The locking structure is bolted to the fixing base.

In the present invention, 1) the support tube replaces the traditional anti-submerged beam with complex beam system, the support tube has good rigidity, light weight, and low manufacturing cost; 2) the upper part of the support tube supports the skeleton structure of the rear seat, which can effectively reduce the cost of automobiles In the event of a collision, the rear seat cushion is submerged and the rear occupant's body moves down and forward; 3) The carpet is laid on the floor and the upper surface of the fixed base, and does not need to be laid on the support tube, eliminating the traditional The anti-submersible beam of the complex beam system is installed behind the floor and forms a large-scale cavity between the floor, avoiding the void caused by the carpet being laid on the upper surface of the traditional anti-submerging beam and unable to fill the cavity inside the anti-submerging beam. 4) The fixed base can be designed into corresponding size specifications according to different models, and the upper locking structure and support tube can be installed on the fixed base through bolts to complete the installation of the entire automobile truss-type anti-submersible beam structure. It can meet the seat layout requirements of different models, and has high versatility; 5) The locking structure is used to connect the fixed base with bolts, which is convenient for timely disassembly when the anti-submerged beam structure needs to be replaced.

Further, the lock structure is provided with a communication hole in the transverse direction, and both ends of the support tube are respectively fixed in the communication hole of a lock structure. The locking structure and the support tube form a fixed connection, which does not need to be replaced as a whole, and can be adapted to the rear seats of different models.

Furthermore, the locking structure includes an upper locking structure and a lower receiving structure, one end of the lower receiving structure is provided with a bolt mounting hole, and the upper locking structure is correspondingly provided with an escape groove. The locking structure can be installed on the fixed support through the bolt installation hole, and the avoidance groove is convenient for installing the bolt.

Still further, an upper semicircular through hole is provided at one end of the upper fastening structure away from the avoidance groove, and a lower semicircular through hole is correspondingly provided on the lower receiving structure, and the upper and lower semicircular through holes are joined to form a communication hole. The communication hole and the outer contour of the support tube should be matched, so that the support tube all falls into the locking structure.

Preferably, the upper fastening structure and the lower receiving structure are separate structures, and the upper fastening structure and the lower receiving structure are fastened together. The split structure facilitates and supports pipe installation.

Further preferably, the two side walls of the avoidance groove of the upper buckle structure are respectively provided with double-layer lower flanging, the two side walls of the lower receiving structure are provided with upper flanging, and the upper flanging is buckled into the double-layer down flanging. between the edges. The upper and lower flanges after being fastened to each other can also be continuously welded to form a more stable structure.

Preferably, one end of the upper buckling structure and the lower receiving structure are hinged, and the other end of the upper buckling structure and the lower receiving structure are connected by a buckle. The lock structure can have various structural forms, as long as the support tube is fixed, and the structure that can be bolted on the fixed support can be used. The strength requirements of the finished lock structure.

Further, the fixing base is in the shape of a box, the bottom of the side wall of the fixing base is provided with a horizontal flange, a reinforcing rib is arranged between the horizontal flange and the side wall, and the upper end surface of the fixing base is provided with bolts for installation. holes and carpet mounting holes. The horizontal flanging is welded on the rear floor of the car, and the reinforcing rib increases the strength between the horizontal flanging and the side wall; the bolt mounting hole can be installed with a locking structure, and the carpet mounting hole can fix the carpet laid on the upper surface of the fixed base. Not easy to move.

A connection structure based on the above-mentioned automobile truss-type anti-submersible beam structure, comprising an automobile rear floor, a carpet and an automobile truss-type anti-submarine beam structure, the fixed base of the automobile truss-type anti-submersible beam structure is fixedly connected to the automobile rear floor, and the carpet Connected to the rear floor of the vehicle and the upper surface of the fixed base, the space between the support pipe of the truss-type anti-submersible beam structure of the vehicle and the rear floor of the vehicle communicates with the surrounding installation space.

Further, a rear seat frame is also included, and the support tube of the automobile truss-type anti-submersible beam structure is supported on the rear seat frame.

Description of drawings

FIG. 1 is a schematic diagram of the overall structure of the present invention.

FIG. 2 is a schematic structural diagram of the support tube and the locking structure after being fixedly connected.

FIG. 3 is a schematic structural diagram of the support tube before one end of the locking structure is connected

FIG. 4 is a partial structural schematic diagram of the connection between the locking structure and the support tube in FIG. 2 .

FIG. 5 is a schematic structural diagram of the present invention being integrally installed on the rear floor of an automobile.

FIG. 6 is a schematic view of the longitudinal cross-sectional structure of FIG. 5 along the middle region of the support tube.

FIG. 7 is a schematic structural diagram of a conventional anti-submerged beam of a complex beam system.

FIG. 8 is a schematic longitudinal cross-sectional structural diagram of a traditional complex beam system anti-submerged beam installed on the rear floor of an automobile.

Detailed ways

The present invention will be further described in detail below with reference to the accompanying drawings, so as to facilitate a clearer understanding of the present invention, but the present invention is not limited to the following specific embodiments.

As shown in FIG. 1, an automobile truss type anti-submersible beam structure of the present invention includes a support tube 200, a locking structure 100 and a fixed base 300. Both ends of the support tube 200 are fixedly connected to the locking structure 100 respectively. The structure 100 is bolted to the fixed base 300 . Among them, in order to reduce the manufacturing cost of the support pipe 200, a light-weight and high-strength hollow steel pipe is selected, and the subsequent installation and connection can be performed only by cutting the hollow steel pipe to an appropriate length during processing.

In combination with the above solutions, as shown in FIG. 1 , FIG. 2 , FIG. 3 and FIG. 4 , the lock structure 100 of the present invention is provided with a communication hole 130 laterally, and the two ends of the support tube 200 are respectively fixed to a communication hole 130 of the lock structure 100 . middle. In order for the locking structure 100 to be conveniently connected to the supporting steel pipe 200 and to the lower fixing base 300, the locking structure 100 includes an upper locking structure 110 and a lower receiving structure 120. One end of the lower receiving structure 120 is provided with The bolt mounting holes 121 and the upper buckling structure 110 are correspondingly provided with an escape groove 111 , and the escape groove 111 is a trapezoidal groove (the specific structure of the escape groove 111 is shown in FIG. 4 ); There is an upper semicircular through hole, and the lower supporting structure 120 has a corresponding lower semicircular through hole. The upper semicircular through hole and the lower semicircular through hole are joined to form a communication hole 130 . In order to facilitate the installation and connection, the preferred design structure is that the upper fastening structure 110 and the lower receiving structure 120 are split structures, the upper fastening structure 110 and the lower receiving structure 120 are fastened together, and the supporting tube 200 is just inserted into the communication hole after fastening In 130; the two side walls of the escape groove 111 of the upper fastening structure 110 are respectively provided with double-layer lower flanging, the two side walls of the lower receiving structure 120 are provided with upper flanging, and the upper flanging is buckled into the double-layer lower flanging. Then, in order to enhance the stability, welding is performed between the upper flange and the lower flange, and welding is also performed between the upper flange and the support tube 200 . In another preferred design structure, one end of the upper fastening structure 110 and the lower receiving structure 120 are hinged, and the other ends of the upper fastening structure 110 and the lower receiving structure 120 are connected by a buckle (not shown in the figure). In addition, as long as the support tube 200 can be placed in the lock structure 100 and is stably connected to the lock structure, it can be applied to the lock structure 100 of the present invention, including the support tube 200 being integrated with the lock structure 100 The forming design; and the locking buckle sleeved on the support tube 200, the locking buckle extending has the structure of installing the flange.

As shown in FIG. 1 and FIG. 5 , the fixing base 300 is box-shaped, and the bottom of the side wall of the fixing base 300 is provided with a horizontal flange 310, and the horizontal flange 310 can be welded on the rear floor 400 of the automobile; Reinforcing ribs 320 are arranged between the side walls to increase the connection strength. The upper end surface of the fixing base 300 is provided with bolt mounting holes 330 for the locking structure 100 to be installed, and a carpet mounting hole 340 for the carpet 500 to be installed on the fixing base 300. connect.

As shown in FIG. 5 and FIG. 6 , in the connection structure of the automobile truss type anti-submersible beam structure of the present invention, when the automobile truss type anti-submersible beam structure of the present invention is installed on the rear floor 400 of the automobile, the fixing base 300 and the rear floor 400 of the automobile are fixed. Although a part of the cavity 700 will be formed therebetween, the cavity 700 is quite small compared to the cavity 700 generated between the anti-submerged beam 600 of the traditional complex beam system and the rear floor 400 of the automobile, so the fixing base of the present invention is The noise generated by the cavity 700 between the seat 300 and the rear floor 400 of the vehicle is negligible; instead, a transparent space is formed between the support pipe 200 and the rear floor of the vehicle, and the carpet 500 can be directly laid on the rear floor 400 of the vehicle On the other hand, there will be no large cavity 700 between the anti-submersible beam 600 of the complex beam system and the rear floor 400 of the automobile. When a collision occurs, the rear seats move forward and downward; as shown in FIG. 7 and FIG. 8 , the anti-submersible beam 600 of the complex beam system includes a bent anti-submersible beam main body and a plurality of bolt mounting holes 610. A cavity 700 is formed between the anti-submersible beam 600 and the rear floor 400 of the vehicle. The upper surface of the anti-submersible beam 600 of a complex beam system is covered with a carpet 500, which is likely to generate relatively large noise and affect the NHV performance of the vehicle. After the height and other dimensions of the fixing base 300 are adjusted, the present invention can adapt to the requirements of the rear seats of various models of automobiles.

The content not described in detail in this specification is the prior art known to those of ordinary skill in the art.

The specific embodiments described above are only illustrative, and the limited modifiers of the technical terms used in the present invention are only for the convenience of the description of the present invention. Under the inspiration of its connection structure, many forms can be derived without departing from the scope of the present invention and the protection scope of the claims, which are all within the protection scope of the present invention.

Claims (5)

1. The utility model provides a latent beam structure is prevented to car truss-like, includes stay tube (200), hasp structure (100) and fixed baseplate (300), its characterized in that: two ends of the supporting tube (200) are respectively and fixedly connected with a locking structure (100), the locking structure (100) is in bolt connection with a fixed base (300), and the fixed base (300) is box-shaped; the bottom of the side wall of the fixed base (300) is provided with a horizontal flanging (310), a reinforcing rib (320) is arranged between the horizontal flanging (310) and the side wall, and the upper end face of the fixed base (300) is provided with a bolt mounting hole (330) and a carpet mounting hole (340);

the lock catch structure (100) comprises an upper buckling structure (110) and a lower bearing structure (120), one end of the lower bearing structure (120) is provided with a bolt mounting hole (121), and the upper buckling structure (110) is correspondingly provided with an avoiding groove (111); two side walls of the avoidance groove (111) of the upper buckling structure (110) are respectively provided with double-layer lower flanging, two side walls of the lower bearing structure (120) are provided with upper flanging, and the upper flanging is buckled between the double-layer lower flanging; the upper flanging and the double-layer lower flanging are welded, and the upper flanging and the supporting tube (200) are welded;

dodge groove (111) and be the dovetail groove, upper portion lock structure (110) are kept away from the one end of dodging groove (111) is equipped with first semicircle through-hole, lower part bearing structure (120) correspond and are equipped with down the semicircle through-hole, first semicircle through-hole and semicircle through-hole joint down form intercommunicating pore (130), upper portion lock structure (110) with the lower part bearing structure's (120) one end is articulated, upper portion lock structure (110) with the other end of lower part bearing structure (120) passes through the buckle joint.

2. The automobile truss type anti-submarine beam structure according to claim 1, wherein: the lock catch structure (100) is transversely provided with a communicating hole (130), and two ends of the supporting tube (200) are respectively fixed in the communicating hole (130) of the lock catch structure (100).

3. The automobile truss type anti-submarine beam structure according to claim 2, wherein: the upper buckling structure (110) and the lower bearing structure (120) are split structures, and the upper buckling structure (110) and the lower bearing structure (120) are buckled.

4. A connection structure of a truss-type anti-dive beam structure for vehicles according to any one of claims 1 to 3, comprising a rear floor (400) of a vehicle, a carpet (500), and the truss-type anti-dive beam structure for vehicles, wherein: the fixing base (300) of the automobile truss type anti-submarine beam structure is fixedly connected with the automobile rear floor (400), the carpet (500) is connected to the upper surfaces of the automobile rear floor (400) and the fixing base (300), and the supporting tube (200) of the automobile truss type anti-submarine beam structure is communicated with the space between the automobile rear floor (400) and the surrounding installation space.

5. The connecting structure of a truss-type anti-submarine beam structure according to claim 4, wherein: the automobile truss type anti-submarine beam structure comprises a rear seat framework, wherein a supporting pipe (200) of the automobile truss type anti-submarine beam structure is supported on the rear seat framework.

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