Anti-rollover device for automobile chassis

Abstract

The utility model relates to an anti-rollover device for an automobile chassis, which comprises a chassis frame, a mounting plate is fixedly mounted in the middle of the chassis frame, and the mounting plate is parallel to the direction of an automobile body. The trigger type protection mechanism is installed on the chassis frame and comprises a collision plate, an abutting rod, a bearing plate, a spring rod, a supporting component used for supporting, a first installation plate, a second installation plate and a torsional spring, and the first end of the collision plate extends out of the longitudinal beam; the second end of the collision plate penetrates through the longitudinal beam and is fixedly connected with the first end of a pressing rod, the second end of the pressing rod is fixedly connected with the first end of the trigger rod, and the second end of the trigger rod penetrates through the mounting plate and is fixedly connected with the first end of a bearing plate through a buckle component capable of being pushed to be unlocked. The trigger type protection mechanism is arranged in the chassis frame to support one side of the vehicle body, so that the vehicle is prevented from rolling over after being impacted at a high speed, and the personal safety of passengers is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of automobile chassis structure design, in particular to a rollover prevention device for automobile chassis. BACKGROUND

[0002] The automobile chassis structure is the basis for supporting and connecting various parts of the automobile, including the chassis frame, which is used to install the upper frame, suspension system, steering system, braking system, transmission system and other key parts. They jointly ensure the stability, maneuverability, safety and comfort of the vehicle, and are the core of the automobile driving function.

[0003] The protective structure added in the existing automobile chassis structure is mainly for buffering function, and lacks the design of rollover prevention function. Once the vehicle is subjected to high-speed impact on the side by other vehicles or encounters continuous pushing caused by the failure of the other vehicle to brake in time, the vehicle we are riding is likely to roll over, leading to more serious accidents and being not conducive to the safety of the passengers. In view of the problem that the existing automobile chassis structure lacks rollover prevention design, which leads to the vehicle being prone to rollover when subjected to side impact, there is no effective solution at present. CONTENT OF THE INVENTION

[0004] The present application provides a rollover prevention device for automobile chassis to solve the problem that the existing automobile chassis structure can cause the vehicle to be prone to rollover when subjected to side impact.

[0005] The present application provides a rollover prevention device for automobile chassis, which comprises:

[0006] A rollover prevention device for automobile chassis, the rollover prevention device comprises:

[0007] The chassis frame is fixedly installed with a support plate in the middle, and the support plate is parallel to the direction of the vehicle body.

[0008] The trigger protection mechanism installed on the chassis frame comprises a collision plate, a pressing rod, a trigger rod, a receiving plate, a spring rod, a supporting part, a first mounting plate, a second mounting plate and a torsion spring, the first end of the collision plate extends out of the longitudinal beam, the second end of the collision plate penetrates through the longitudinal beam and is fixedly connected with the first end of the pressing rod, the second end of the pressing rod is fixedly connected with the first end of the trigger rod, the second end of the trigger rod penetrates through the supporting plate and is fixedly connected with the first end of the receiving plate through a buckle part capable of being unlocked, the first mounting plate and the second mounting plate are fixedly installed on the supporting plate, the second mounting plate is rotationally connected with the receiving plate through a first rotating shaft, the first rotating shaft is perpendicular and penetrates through the receiving plate, the first mounting plate is rotationally connected with the spring rod through a torsion spring, the torsion spring is vertically connected with the first end of the spring rod, the second end of the spring rod is connected with the supporting part, the supporting part is located on the upper surface of the receiving plate, the initial state of the spring rod and the torsion spring is a compressed state and the elastic potential energy of the torsion spring makes the supporting part generate a downward extrusion torsion force on the receiving plate, when the buckle part is in a locked state, under the limiting action of the trigger rod, the receiving plate is in a horizontal state, when the trigger rod moves a preset distance towards the receiving plate, the buckle part can be unlocked.

[0009] In some embodiments, the buckle part comprises two locking blocks which are mutually buckled, both of the locking blocks are L-shaped, one of the locking blocks is fixed with the second end of the trigger rod to form a first U-shaped structure, the other locking block is fixed with the first end of the receiving plate to form a second U-shaped structure, the first U-shaped structure and the second U-shaped structure are mutually embedded to form a buckle.

[0010] In some embodiments, a telescopic spring is sleeved on the surface of the trigger rod, one end of the telescopic spring is fixedly connected with the pressing rod, the other end is fixedly connected with the surface of the supporting plate.

[0011] In some embodiments, the supporting part comprises a pair of supporting wheels, each of the supporting wheels is rotationally connected with the second end of the spring rod through a second rotating shaft.

[0012] In some embodiments, the chassis frame comprises a pair of longitudinal beams and a pair of transverse beams, the two longitudinal beams are arranged in parallel, the middle part of each of the longitudinal beams is designed in an arc shape, the two transverse beams are fixedly connected on the sides of the two longitudinal beams which are close to each other.

[0013] In some embodiments, the trigger protection mechanism is provided with a pair of trigger protection mechanisms which are distributed on the two sides of the supporting plate in a left-right staggered manner.

[0014] In some embodiments, each of the supporting wheels is rotationally connected with the second rotating shaft through a ball bearing.

[0015] In some embodiments, the second end of the receiving plate is an L-shaped plate structure and is matched with the size of the supporting wheel.

[0016] In some embodiments, the supporting wheel is made of natural rubber.

[0017] In some embodiments, a buffer strip is arranged outside the collision plate.

[0018] Compared with the related art, the utility model has the beneficial effects that:

[0019] When one side of the vehicle body is hit by other vehicles, the first end of the collision plate is horizontally pushed into the chassis frame under the pressing action of other vehicles, and then the second end pushes the pressing rod to press the trigger rod, the pressing of the trigger rod unlocks the buckle part, when the buckle part is unlocked, the receiving plate rotates clockwise around the first rotating shaft, and after losing the block of the receiving plate, under the elastic potential of the torsional spring and the spring rod, the supporting part is obliquely popped out from the chassis frame to support the other side of the vehicle body, preventing the vehicle body from rolling over, and solving the problem of lacking rollover prevention function design in the existing automobile chassis structure.

[0020] In addition to the buffer support of the supporting wheel, the first end of the collision plate is provided with a buffer strip, and the elastic spring is arranged between the pressing rod and the supporting plate, which further reduces the impact force generated by other vehicles from the outside and the inside of the vehicle.

[0021] The details of one or more embodiments of the application are presented in the following drawings and description to make other features, objects and advantages of the application more clear and easy to understand. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a perspective view of the rollover prevention device in some embodiments;

[0023] Figure 2 It is a top view of the rollover prevention device in some embodiments;

[0024] Figure 3 It is a perspective view of the trigger protection mechanism in some embodiments;

[0025] Figure 4 It is a side view of the trigger protection mechanism in some embodiments;

[0026] Figure 5 It is a perspective view of the trigger protection mechanism in some embodiments; Figure 4 It is an enlarged view of structure A in the middle.

[0027] In the figure: 1, longitudinal beam; 2, cross beam; 3, support plate; 4, impact plate; 5, pressing rod; 6, extension spring; 7, trigger rod; 8, receiving plate; 9, spring rod; 10, support wheel; 11, first mounting plate; 12, second mounting plate; 13, locking block; 14, torsion spring; 15, ball bearing; 16, buffer strip. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0029] In the utility model, unless explicitly defined and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, can be detachable connection, or integrated; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through an intermediate medium; can be the communication inside two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0030] Referring to Figure 1 and Figure 2 The embodiment provides a roll-over prevention device for automobile chassis.

[0031] The chassis frame is the carrier of the upper frame, and a support plate 3 is fixedly installed in the middle part of the chassis frame, and the support plate 3 is parallel to the direction of the vehicle body. Other chassis structural members can be installed on the support plate 3.

[0032] Specifically, the chassis frame comprises a pair of longitudinal beams 1 and a pair of cross beams 2, the two longitudinal beams 1 are arranged in parallel, the middle part of each longitudinal beam 1 is designed in an arc shape (the middle part of the two longitudinal beams 1 is recessed to form an arc shape on the side close to each other), and the two cross beams 2 are fixedly connected to the side close to each other of the two longitudinal beams 1. The longitudinal beam 1 and the cross beam 2 are the main supports of the chassis frame, are fixed by welding, and the stability between the longitudinal beam 1 and the cross beam 2 is improved.

[0033] Referring to Figure 2 and 3As shown, the first end of the collision plate 4 extends out of the longitudinal beam 1, the second end of the collision plate 4 penetrates the longitudinal beam 1 and is fixedly connected with the first end of the pressing rod 5, the second end of the pressing rod 5 is fixedly connected with the first end of the trigger rod 7, the second end of the trigger rod 7 penetrates the support plate 3 and is fixedly connected with the first end of the receiving plate 8 through the unlockable buckle component, the first mounting plate 11 and the second mounting plate 12 are both fixedly installed on the support plate 3, the second mounting plate 12 is rotationally connected with the receiving plate 8 through the first rotating shaft, the first rotating shaft is perpendicular and penetrates the receiving plate 8, the first mounting plate 11 is rotationally connected with the spring rod 9 through the torsional spring 14, the torsional spring 14 is connected with the first end of the spring rod 9 perpendicularly, the second end of the spring rod 9 is connected with the support component, the support component is located on the upper surface of the receiving plate 8, the initial states of the spring rod 9 and the torsional spring 14 are both compression states and the elastic potential energy of the torsional spring 14 makes the support component generate a downward extrusion torsional force on the receiving plate 8. When the buckle component is in the locked state, under the limiting action of the trigger rod 7, the receiving plate 8 is in a horizontal state, when the trigger rod 7 moves a preset distance towards the receiving plate 8, the buckle component is unlocked. The preset distance can be adjusted and designed according to actual conditions. For example, 1 cm, 2 cm.

[0034] The buckle component includes two locking blocks 13 that are mutually buckled, as shown in Figure 5 As shown, the two locking blocks are both L-shaped, one of the locking blocks 13 is fixedly formed with the second end of the trigger rod 7 into a first U-shaped structure, the other locking block 13 is fixedly formed with the first end of the receiving plate 8 into a second U-shaped structure, and the first U-shaped structure and the second U-shaped structure are mutually embedded to form a buckle. In the locked state, the first U-shaped structure and the second U-shaped structure are cooperatively locked to prevent the receiving plate 8 from rotating under the pressing of the support component.

[0035] Preferably, a telescopic spring 6 is sleeved and slidably connected on the surface of the trigger rod 7, one end of the telescopic spring 6 is fixedly connected with the pressing rod 5, and the other end is fixedly connected with the surface of the support plate 3. When the collision plate 4 pushes the pressing rod 5 to move horizontally, the telescopic spring 6 will also be extruded, at this time, the telescopic spring 6 will have a buffering effect on the pressing rod 5, which is used to reduce the impact force generated by the collision.

[0036] Specifically, the supporting component includes a pair of supporting wheels 10, each of which is rotationally connected to the second end of the spring rod 9 through a second rotating shaft. When the supporting component is obliquely ejected from the chassis frame, the two supporting wheels 10 are responsible for converting the sliding friction between the other side of the vehicle and the ground into rolling friction, reducing the friction between the other side of the vehicle and the ground, which can more effectively reduce the possibility of vehicle rollover, and also prevent the supporting component from generating sparks due to high temperature during high-speed friction, thereby avoiding vehicle fire. Further, each supporting wheel 10 is rotationally connected to the second rotating shaft through a ball bearing 15. The ball bearing 15 can better reduce the friction between the rotating shaft and the bearing, preventing the ejected supporting wheel 10 from rotating relative to the ground and becoming sliding friction due to the high speed generated after the vehicle is hit. In order to further improve safety, the supporting wheel 10 is made of natural rubber material. Natural rubber is a high-temperature-resistant and non-flammable material, so even if the supporting wheel 10 is in sliding friction, the natural rubber material can well reduce the probability of friction fire.

[0037] The trigger protection mechanism is passively triggered. When one side of the vehicle body is hit by another vehicle, the first end of the collision plate 4 will be pushed horizontally into the chassis frame under the pressing action of the other vehicle, and then the second end will push the pressing rod 5 to press the trigger rod 7, which will be pressed to unlock the buckle component. When the buckle component is unlocked, the receiving plate 8 will rotate clockwise around the first rotating shaft, and after losing the blockage of the receiving plate 8, under the elastic potential of the torsional spring 14 and the spring rod 9, the supporting component will be obliquely ejected from the chassis frame, supporting the other side of the vehicle body and reducing the probability of vehicle rollover, thereby solving the problem that the existing chassis structure of the vehicle can easily cause the vehicle to roll over when subjected to side impact.

[0038] Preferably, the trigger protection mechanism is provided with a pair of and is left-right staggered on both sides of the supporting plate 3. The two trigger protection mechanisms correspond to the left and right sides of the vehicle respectively, and the left-right staggered distribution makes each trigger protection mechanism operate independently and not be affected by the other. Further, as shown in Figure 4 The second end of the receiving plate 8 is an L-shaped plate structure and matches the size of the supporting wheel 10. The inner wall of the L-shaped plate structure corresponds to the elastic potential of the blocking spring rod 9 and the torsional spring 14 respectively, which better limits the supporting component in the chassis frame. In some embodiments, the first end of the collision plate 4 is provided with a layer of buffer strip. The buffer strip can reduce the impact force from the outside when the vehicle is hit by another vehicle.

[0039] The utility model discloses a trigger type protection mechanism is arranged in the chassis frame, when the body one side is hit by other vehicles, the trigger type protection mechanism of this side is triggered, and the first end of this side crash plate 4 will be pushed to the inside of chassis frame under the pressure of other vehicles, and then the second end will push the pressure bar 5 and press the trigger lever 7, and the pressure of trigger lever 7 will unlock the buckle part, when the buckle part is unlocked, the receiving plate 8 will rotate clockwise around the first pivot, after losing the block of receiving plate 8, under the elastic potential of torsion spring 14 and spring rod 9, the supporting part will be obliquely popped out from the chassis frame and support the other side of the vehicle body, prevent the vehicle body from rolling over, solve the problem that the existing automobile chassis structure lacks the design of anti -rollover function.

[0040] Further, when the supporting part of one side is obliquely popped out from the chassis frame, two supporting wheels 10 are responsible for converting the sliding friction between the vehicle side and the ground into rolling friction, reducing the friction between the vehicle side and the ground, which can more effectively reduce the possibility of vehicle rollover, and also prevent the supporting part from generating sparks due to high temperature during high-speed friction, avoiding vehicle fire.

[0041] It should be understood that the specific embodiments described herein are merely exemplary and not intended to limit the application. According to the embodiments provided in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0042] Obviously, the drawings are only some examples or embodiments of the present application, and those skilled in the art can also apply the present application to other similar situations according to the drawings without creative labor. In addition, it should be understood that although the work done in the development process may be complex and long, for those skilled in the art, some design, manufacture or production changes according to the technical content disclosed in the present application are only routine technical means and should not be regarded as insufficient disclosure of the present application.

Claims

1. A roll-over prevention device for an automotive vehicle chassis, characterized by comprising: The anti-rollover device comprises: A chassis frame, a support plate (3) is fixedly installed in the middle of the chassis frame, and the support plate (3) is parallel to the direction of the vehicle body; A trigger type protection mechanism is installed on the chassis frame, the trigger type protection mechanism comprises a collision plate (4), a pressing rod (5), a trigger rod (7), a receiving plate (8), a spring rod (9), a support component, a first mounting plate (11), a second mounting plate (12) and a torsional spring (14); The first end of the collision plate (4) extends out of the longitudinal beam (1), the second end of the collision plate (4) penetrates through the longitudinal beam (1) and is fixedly connected with the first end of the pressing rod (5), the second end of the pressing rod (5) is fixedly connected with the first end of the trigger rod (7), the second end of the trigger rod (7) penetrates through the support plate (3) and is fixedly connected with the first end of the receiving plate (8) through a buckle component which can be pushed to be unlocked, the first mounting plate (11) and the second mounting plate (12) are fixedly installed on the support plate (3), the second mounting plate (12) is rotationally connected with the receiving plate (8) through a first rotating shaft, the first rotating shaft is perpendicular to and penetrates through the receiving plate (8), the first mounting plate (11) is rotationally connected with the spring rod (9) through the torsional spring (14), the torsional spring (14) is connected with the first end of the spring rod (9) perpendicularly, the second end of the spring rod (9) is connected with the support component, the support component is located on the upper surface of the receiving plate (8), the initial state of the spring rod (9) and the torsional spring (14) is a compressed state, and the elastic potential energy of the torsional spring (14) makes the support component generate a downward extrusion torsional force on the receiving plate (8); When the buckle component is in a locked state, under the limiting action of the trigger rod (7), the receiving plate (8) is in a horizontal state, and when the trigger rod (7) moves a preset distance towards the receiving plate (8), the buckle component can be unlocked.

2. The anti-rollover device for an automobile chassis according to claim 1, characterized by The buckle component comprises two locking blocks (13) which are mutually clamped, both the locking blocks (13) are L-shaped, one of the locking blocks (13) and the second end of the trigger rod (7) form a first U-shaped structure, the other locking block (13) and the first end of the receiving plate (8) form a second U-shaped structure, and the first U-shaped structure and the second U-shaped structure are mutually embedded to form a buckle.

3. The anti-rollover device for an automobile chassis according to claim 1, characterized by The surface of the trigger rod (7) is sleeved with a telescopic spring (6), one end of the telescopic spring (6) is fixedly connected with the pressing rod (5), and the other end is fixedly connected with the surface of the support plate (3).

4. The anti-rollover device for an automobile chassis according to claim 1, characterized by The support component comprises a pair of support wheels (10), and each support wheel (10) is rotationally connected with the second end of the spring rod (9) through a second rotating shaft.

5. The anti-rollover device for an automobile chassis according to claim 1, characterized by The chassis frame comprises a pair of longitudinal beams (1) and a pair of cross beams (2), the two longitudinal beams (1) are arranged in parallel, the middle part of each longitudinal beam (1) is designed in an arc shape, and the two cross beams (2) are fixedly connected to one side of the two longitudinal beams (1) which are close to each other.

6. The anti-rollover device for an automobile chassis according to claim 1, characterized by The trigger type protection mechanism is provided with a pair of and is distributed in a left-right staggered manner on both sides of the support plate (3).

7. The anti-rollover device for an automobile chassis according to claim 4, characterized by Each of the support wheels (10) is rotatably connected with the second rotating shaft through a ball bearing (15).

8. The anti-rollover device for an automobile chassis according to claim 4, characterized by The second end of the receiving plate (8) is an L-shaped plate structure and is matched with the size of the support wheel (10).

9. The anti-rollover device for an automobile chassis according to claim 4, characterized by The support wheel (10) is made of natural rubber material.

10. The anti-rollover device for an automotive chassis according to claim 1, characterized by The first end of the collision plate (4) is provided with a layer of buffer strips (16).

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