Offset wharf vehicle framework structure capable of collapsing and absorbing energy

Abstract

The utility model relates to the technical field of vehicle body structures, in particular to an offset wharf vehicle framework structure capable of collapsing and absorbing energy, which comprises a framework and joints, the framework and the joints are welded to form a cage type frame, the joints comprise a left A-pillar joint and a right A-pillar joint, A-pillars and side wall upper edge beams are arranged on the left A-pillar joint and the right A-pillar joint, and the left A-pillar joint and the right A-pillar joint are welded to form the cage type frame. The A column support is connected with the front windshield glass and the door frame; the side wall roof side rail support is connected with the top cover outer plate and the door frame; when a vehicle turns on one side or rolls over, the cage type framework vehicle body formed by the section bars and the special connectors can effectively transmit collision energy to all parts of the vehicle body, the integrity of the whole frame is always kept, the deformation of a cab is reduced, the living space of passengers is guaranteed, and therefore the collision safety of the whole vehicle is improved; the types and the number of automobile body parts are effectively reduced, a welding tool is simplified, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle body structures, in particular to an offset dock vehicle frame structure capable of collapsing and absorbing energy. Background Art

[0002] The existing commercial vehicle body uses steel structure body inner and outer panels, which are formed by stamping steel and then welded together to obtain a body structure for load bearing. Due to the limitations of the overall layout of commercial vehicles, the engine compartment cannot be arranged as a collision crumple zone like passenger cars. The body can only respond to the increasingly stringent collision regulations by improving material strength and optimizing the existing compact structure.

[0003] The existing inner and outer plate structure body is heavy, which affects the curb weight of the whole vehicle and consumes a lot of fuel. At the same time, the stamping process has extremely high requirements for the mold, which increases the production cost. On the other hand, the mechanical properties near the weld after welding are seriously reduced, resulting in insufficient rigidity of the body frame and the cockpit, which cannot guarantee the safety of people in the car in the event of a collision. At present, energy conservation, environmental protection and the development of a low-carbon economy have become the main theme of the world. In the automotive field, in addition to improving the power system and using clean energy, lightweighting of automobiles is an effective and easy way to save energy and reduce CO2 emissions. To reduce the weight of the car and reduce costs, it is necessary to use suitable materials and processes. Among many materials, profiles have the advantages of high cross-sectional shape freedom, excellent formability, and a small number of parts, and can be widely used in the automotive field. In response to new requirements for automobile collision, rollover and falling object protection in domestic and foreign regulations, the use of profiles to design a body structure with a crush energy absorption effect can effectively simplify the body frame structure, reduce the number of parts, and simplify welding tooling, so as to achieve the purpose of lightweight design and reduce energy consumption.

[0004] The prior art mainly has the following disadvantages:

[0005] 1. The process is complicated and the tooling investment cost is high.

[0006] 2. Heavy weight and low lightweighting rate.

[0007] 3. In order to meet the requirements of collision regulations, the overall material distribution of the vehicle body is uneven, and performance and materials are in excess.

[0008] Therefore, an offset dock vehicle frame structure capable of collapsing and absorbing energy is invented to solve the problem that the existing commercial vehicle inner and outer panel structures have complex bodywork and are heavy and cannot meet the requirements of collision energy absorption. Utility Model Content

[0009] In view of the problems existing in the prior art, the purpose of the utility model is to provide an offset dock vehicle frame structure that can collapse and absorb energy, which significantly improves the strength of the vehicle body. When the vehicle encounters rollover, tumbling or heavy objects falling, firstly, the joint between the A-pillar and the top cover frame can effectively maintain the integrity of the overall frame, and the collision energy can be transmitted to each frame beam through the joint; secondly, the body frame collapses and absorbs energy, which can maximize the survival space of the occupants and improve the safety factor of the occupants in the vehicle.

[0010] The technical solution adopted by the utility model to solve its technical problems is: a collapsible energy-absorbing offset dock vehicle frame structure, including a frame and a joint, the frame and the joint are welded into a cage frame, the joint includes a left A-pillar joint and a right A-pillar joint, the left A-pillar joint and the right A-pillar joint are both provided with an A-pillar and a side upper beam, the A-pillar supports connect the front windshield and the door frame, and the side upper beam supports connect the top cover outer panel and the door frame.

[0011] Preferably, the frame includes a front frame, a left side frame, a roof frame, a right side frame, a rear frame and a floor frame.

[0012] Preferably, the left A-pillar joint and the right A-pillar joint are both provided with a joint connector and a front windshield upper cross beam, and the joint connector, the front windshield upper cross beam, the A-pillar and the side panel upper beam are all made of metal profiles.

[0013] Preferably, the front enclosure frame is welded and fixed to the A-pillars on both sides, the left enclosure frame and the right enclosure frame are welded and fixed between the side enclosure upper beams and the floor frame, the top cover frame is welded and fixed to the side enclosure upper beams and the front windshield upper cross beam, and the rear enclosure frame is welded and fixed between the floor frame and the side enclosure upper beams on both sides.

[0014] Preferably, the joint connector is welded to fix the side panel upper beam and the front windshield upper cross beam.

[0015] Preferably, the A-pillar and the upper side beam of the side panel adopt a profile structure that absorbs energy when crushed in collision.

[0016] The utility model has the following beneficial effects:

[0017] The collapsible energy-absorbing offset dock vehicle frame structure designed by the utility model enables the cage-type frame body composed of profiles and special joints to effectively transfer the collision energy to various parts of the vehicle body when the vehicle rolls over or rolls, always maintaining the integrity of the overall frame, reducing deformation of the cab, ensuring the survival space of the occupants, and thus improving the collision safety of the entire vehicle.

[0018] The utility model discloses a frame structure of an offset dock vehicle capable of crushing and absorbing energy, which has an A-pillar and an upper side beam of a side wall with a crushing and absorbing function, so that the vehicle can crush and deform when it rolls over or rolls over, thereby absorbing collision energy, reducing deformation of the cab, ensuring the survival space for the occupants, and improving the collision safety of the entire vehicle.

[0019] The collapsible energy-absorbing offset dock vehicle frame structure designed by the utility model adopts profiles as the main frame structure, which effectively reduces the types and quantities of vehicle body parts, simplifies welding tools, and reduces production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a crushable energy-absorbing offset dock vehicle frame structure.

[0021] Figure 2 It is a structural diagram of the A-pillar joint.

[0022] Figure 3 This is a cross-sectional view of the A-pillar before it collapses and absorbs energy.

[0023] Figure 4 This is a cross-sectional view of the A-pillar after it has collapsed and absorbed energy.

[0024] Figure 5 It is a cross-sectional view of the upper side beam before it collapses and absorbs energy.

[0025] Figure 6 It is a cross-sectional view of the upper side beam after the side panel has collapsed and absorbed energy.

[0026] In the figure: 1-1, front enclosure frame; 1-2, left enclosure frame; 1-3, roof frame; 1-4, right enclosure frame; 1-5, rear enclosure frame; 1-6, floor frame; 1-7, left A-pillar joint; 1-8, right A-pillar joint; 2-1, A-pillar; 2-2, side enclosure upper beam; 2-3, joint connector; 2-4, front windshield upper crossbeam; 3-1, front windshield glass; 3-2, door frame; 2-1-1, deformed A-pillar; 4-1, roof outer panel; 4-1-1, deformed roof outer panel; 2-2-1, deformed side enclosure upper beam. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely further describe the technical solutions in the embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Embodiment 1:

[0029] like Figure 1-Figure 6As shown, a crushable energy-absorbing offset dock vehicle frame structure includes a frame and joints, which are welded together to form a complete cage frame. The frame includes a front enclosure frame 1-1, a left enclosure frame 1-2, a top cover frame 1-3, a right enclosure frame 1-4, a rear enclosure frame 1-5 and a floor frame 1-6, and the joints include a left A-pillar joint 1-7 and a right A-pillar joint 1-8.

[0030] The left A-pillar joint 1-7 and the right A-pillar joint 1-8 are both provided with an A-pillar 2-1, a side panel upper beam 2-2, a joint connector 2-3 and a front windshield upper cross beam 2-4, and the joint connector 2-3, the front windshield upper cross beam 2-4, the A-pillar 2-1 and the side panel upper beam 2-2 are all made of metal profiles. The joint connector 2-3 is welded to fix the side panel upper beam 2-2 and the front windshield upper cross beam 2-4.

[0031] The A-pillar 2-1 supports and connects the front windshield 3-1 and the door frame 3-2, and the side upper side beam 2-2 supports and connects the top cover outer panel 4-1 and the door frame 3-2.

[0032] The front enclosure frame 1-1 is welded and fixed to the A-pillars 2-1 on both sides, the left enclosure frame 1-2 and the right enclosure frame 1-4 are welded and fixed between the side enclosure upper side beam 2-2 and the floor frame 1-6, the top cover frame 1-3 is welded and fixed to the side enclosure upper side beam 2-2 and the front windshield upper cross beam 2-4, and the rear enclosure frame 1-5 is welded and fixed between the floor frame 1-6 and the side enclosure upper side beams 2-2 on both sides.

[0033] The A-pillar 2-1 and the upper side beam 2-2 of the side panel adopt a profile structure that can absorb energy when it collapses during collision.

[0034] Embodiment 2: Implementation process of crush energy absorption using the structural form of embodiment 1.

[0035] like Figure 3-Figure 4 As shown, the connection structure of the profile A-pillar 2-1 with the crush energy absorption function, Figure 3 The middle view is a schematic diagram of the front structure of the crumple energy absorption, where 2-1 is the A-pillar, 3-1 is the front windshield, and 3-2 is the door frame. Figure 4 The middle view is a schematic diagram of the structure after crushing and energy absorption, where 2-1-1 is the cross-section of the A-pillar after crushing and deformation.

[0036] like Figure 5-Figure 6 As shown, the structure of the profile side upper side beam 2-2 with the function of crushing energy absorption, Figure 5 The middle view is a schematic diagram of the front structure of the crush energy absorption, where 4-1 is the roof outer panel, 2-2 is the side panel upper beam, and 3-2 is the door frame. Figure 6 The middle view is a schematic diagram of the structure after crushing and energy absorption, where 4-1-1 is the outer panel of the top cover after deformation, and 2-2-1 is the section of the upper beam of the side panel after crushing and deformation.

[0037] In actual use, if the vehicle rolls over or rolls, the energy absorption area of ​​the A-pillar 2-1 and the side upper beam 2-2 of the outermost special-shaped structural profile of the vehicle body frame will collapse and deform, greatly absorbing the impact energy, thereby greatly reducing the deformation of the cab and ensuring the survival space for the occupants, thereby improving the collision safety of the entire vehicle.

[0038] The present utility model is not limited to the above-mentioned implementation modes, and anyone should be aware of the structural changes made under the inspiration of the present utility model. Any technical solutions that are the same or similar to the present utility model fall within the protection scope of the present utility model.

[0039] The technology, shape and structure parts not described in detail in the present invention are all known technologies.

Claims

1. A collapsible energy-absorbing offset dock vehicle frame structure, characterized in that: The invention comprises a frame and a joint, wherein the frame and the joint are welded into a cage-type frame, wherein the joint comprises a left A-pillar joint (1-7) and a right A-pillar joint (1-8), wherein the left A-pillar joint (1-7) and the right A-pillar joint (1-8) are both provided with an A-pillar (2-1) and a side upper beam (2-2), wherein the A-pillar (2-1) supports and connects a front windshield (3-1) and a door frame (3-2), and the side upper beam (2-2) supports and connects a top cover outer panel (4-1) and a door frame (3-2).

2. The collapsible energy-absorbing offset dock vehicle frame structure according to claim 1, characterized in that: The frame comprises a front enclosure frame (1-1), a left enclosure frame (1-2), a top cover frame (1-3), a right enclosure frame (1-4), a rear enclosure frame (1-5) and a floor frame (1-6).

3. The collapsible energy-absorbing offset dock vehicle frame structure according to claim 1, characterized in that: The left A-pillar joint (1-7) and the right A-pillar joint (1-8) are also provided with a joint connector (2-3) and a front windshield upper crossbeam (2-4); the joint connector (2-3), the front windshield upper crossbeam (2-4), the A-pillar (2-1) and the side panel upper beam (2-2) are all made of metal profiles.

4. The collapsible energy-absorbing offset dock vehicle frame structure according to claim 2, characterized in that: The front enclosure frame (1-1) is welded and fixed to the A-pillars (2-1) on both sides; the left enclosure frame (1-2) and the right enclosure frame (1-4) are welded and fixed between the side enclosure upper beam (2-2) and the floor frame (1-6); the top cover frame (1-3) is welded and fixed to the side enclosure upper beam (2-2) and the front windshield upper cross beam (2-4); and the rear enclosure frame (1-5) is welded and fixed between the floor frame (1-6) and the side enclosure upper beams (2-2) on both sides.

5. The collapsible energy-absorbing offset dock vehicle frame structure according to claim 3, characterized in that: The joint connector (2-3) is welded to fix the side panel upper beam (2-2) and the front windshield upper cross beam (2-4).

6. The collapsible energy-absorbing offset dock vehicle frame structure according to claim 1, characterized in that: The A-pillar (2-1) and the side upper beam (2-2) adopt a profile structure capable of absorbing energy by collapsing during collision.

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