Lightweight vehicle body structure

Abstract

To prevent damage of an internal device caused when a device storage box is deformed and damaged by an impact from the outside.SOLUTION: A vehicle body structure includes a floor frame, a passenger compartment, and a control device box. The passenger compartment is installed above the floor frame, the control device box in which control devices are arranged is installed inside the floor frame, buffer blocks are installed inside the floor frame, and a front-rear sliding structure is formed between the buffer blocks and the floor frame. First buffer springs are fixed at the front and rear sides of the buffer block. The combination of the first buffer springs and the buffer blocks buffers impact and deformation of the floor frame in the front-rear direction. The combination of movable blocks and second buffer springs buffers impact and deformation of the floor frame in the left-right direction.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to the technical field of vehicle body structure, and more particularly to a lightweight vehicle body structure. [Background technology]

[0002] With the advancement of modern technology, vehicles are becoming more intelligent, with an increasing number of autonomous and wirelessly controlled intelligent vehicles. Intelligent vehicles can be manufactured in various types to suit different usage scenarios. In order to extend the power range of intelligently controlled vehicles, the body structure is becoming increasingly lighter, and the overall mass is reduced by using lightweight, high-strength materials. In the autonomous driving-based separable body structure disclosed in Patent Document 1, the body structure is configured as a detachable connection between the cabin, deck, and chassis. This structure is advantageous for modular design of the body structure, thereby simplifying the body structure, and the overall vehicle structure is more aesthetically pleasing. In this invention, the deck is an intermediate connection structure, allowing the chassis and cabin to be used separately, enabling chassis sharing and effectively saving resources. Furthermore, by combining and connecting the deck and cabins with different functions (passenger / cargo), the overall vehicle can achieve multi-purpose functions. When a current vehicle body is in use, an equipment storage box needs to be connected to the vehicle body frame to install subsequent intelligent control equipment, and the equipment storage box is connected to the frame by welding or other fixing methods. During subsequent use, if an accident occurs to the frame and the frame is subjected to an external collision, the frame will be deformed by the collision force, and the impact and acting force generated by this deformation will be directly transmitted to the equipment storage box, causing deformation and damage to the equipment storage box and leading to destruction of the internal equipment, and increasing the difficulty of subsequent vehicle body repairs. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] China Utility Model Publication No. 210760409 Summary of the Invention [Problem to be solved by the invention]

[0004] The present invention aims to provide a lightweight vehicle body structure that solves the problem that when a frame receives an impact due to an external collision as described in the background art above, the frame is deformed by the impact force, and the effects and acting forces generated by this deformation are transmitted directly to the equipment storage box, causing deformation and damage to the equipment storage box and leading to the destruction of the internal equipment. [Means for solving the problem]

[0005] In order to achieve the above object, the present invention provides the following technical solution: a lightweight vehicle body structure, comprising a floor frame, a passenger compartment, and a control box, the passenger compartment is installed above the floor frame, a control box for arranging control equipment is installed inside the floor frame, a buffer block is installed inside the floor frame, a front-rear sliding structure is formed between the buffer block and the floor frame, first buffer springs are fixed to the front and rear of the buffer block, the buffer blocks are arranged symmetrically outside the control box, a fixed block is fixed inside the buffer block and penetrates the inner surface of the floor frame, a movable block is nested within the fixed block, an inner end of the movable block is connected to the control box and supports the control box, and a second buffer spring is fixed to the outer end of the movable block and installed inside the fixed block to buffer the movement of the movable block and buffer the force generated by deformation of the floor frame from being transmitted to the control box.

[0006] To further optimize this technical solution, an appearance cover is installed on the outside of the floor frame, and the appearance cover is wrapped around the outside of the floor frame in an encircling manner, and the appearance cover is located between the floor frame and the passenger compartment, decorating the exterior of the floor frame.

[0007] In order to further optimize this technical solution, the lower part of the control equipment box is designed to have an open structure, an installation cover is installed at the lower part of the control equipment box, and the installation cover and the control equipment box are detachably connected by a bolt, so that the installation cover can be opened later to inspect the inside of the control equipment box.

[0008] To further optimize this technical solution, a detachable joint mechanism is provided inside the movable block, and the movable block and the control box are connected via the detachable joint mechanism.

[0009] To further optimize this technical solution, a detachable joint mechanism is provided inside the movable block, and the movable block is interconnected with the control device box via the detachable joint mechanism.

[0010] To further optimize this technical solution, the detachable joint mechanism includes a connecting block, a through groove, a first locking rod, a connector and a connecting groove; The connection block is fixed to the outside of the control box, and the connection block and the movable block are arranged in one-to-one correspondence, and the inner end of the movable block is provided with a groove corresponding to the movable block, and the groove is opened in a horizontal direction; The through-groove is drilled vertically in the center of the connecting block, The first log rod is disposed inside and between the movable blocks to form a telescopic connection, and the first log rod and the through groove form a telescopic connection. The connector is fixed to the top of the first log rod, The connecting groove is opened inside the movable block, and the connecting groove is located on the upper side of the connecting block, and a screw connection is formed between the connecting groove and the connector.

[0011] To further optimize this technical solution, a connecting mechanism is provided on the underside of the passenger compartment, and the passenger compartment is connected to the floor frame via the connecting mechanism.

[0012] To further optimize this technical solution, the joining mechanism includes a joining pin, a joining groove, a screw groove and a second locking rod; The joint pins are fixed to the underside of the floor frame, and the joint pins are evenly arranged on the underside of the floor frame; The joint groove is opened on the upper surface of the floor frame, and a concave-convex fitting structure is formed between the joint groove and the joint pin; The screw groove is provided on the underside of the connecting pin. The second locking rod penetrates the underside of the floor frame, forming a telescopic connection between the second locking rod and the floor frame, and the upper end of the second locking rod is located inside the thread groove, forming a threaded connection between the second locking rod and the thread groove. [Effects of the Invention]

[0013] Compared with the prior art, the advantageous effects of the present invention are as follows: (1) This lightweight body structure uses a combination of a first buffer spring and a buffer block to buffer the impact and deformation of the floor frame in the forward / backward direction, and a combination of a movable block and a second buffer spring to buffer the impact and deformation of the floor frame in the left / right direction. This reduces the impact of force and deformation on the control equipment box and strengthens the protection of the internal equipment. Even after impact or deformation, the body can be controlled normally, and repairing the floor frame does not require repairing the control equipment, reducing the difficulty of subsequent repairs. (2) This lightweight body structure allows the connection block to be fixed to the movable block via the first lock rod, and the fixed block can be disassembled from the connection block, making it easy to remove the control equipment box and facilitating uniform installation and adjustment of equipment within the control equipment box. (3) This lightweight body structure allows the passenger compartment to be disassembled on the floor frame through the detachable connection of the connecting pins and connecting grooves, and can be replaced with different types of passenger compartments depending on the application, making it more flexible and versatile to use. [Brief explanation of the drawings]

[0014] [Figure 1] 1 is a schematic diagram of the three-dimensional structure of the present invention. [Figure 2] FIG. 2 is a schematic diagram of the bottom view structure of the present invention. [Figure 3] 1 is a schematic diagram of an exploded view of the present invention; FIG. [Figure 4] 1 is a schematic diagram of an exploded top view of a floor frame structure of the present invention. [Figure 5] FIG. 2 is a schematic diagram of the front exploded structure of the fixing block of the present invention. [Figure 6] FIG. 2 is a schematic diagram of the front exploded view of the joining pin structure of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0015] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention, but obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts also fall within the scope of protection of the present invention.

[0016] Fig. 1 is a schematic diagram of a three-dimensional structure of the present invention. Fig. 2 is a schematic diagram of a bottom view structure of the present invention. Fig. 3 is a schematic diagram of an exploded structure of the present invention. Fig. 4 is a schematic diagram of a top view exploded structure of a floor frame of the present invention. Fig. 5 is a schematic diagram of a front view exploded structure of a fixed block of the present invention. Fig. 6 is a schematic diagram of a front view exploded structure of a connecting pin of the present invention. Referring to Figures 1 to 6, the present invention provides the following technical solutions. The lightweight vehicle body structure includes a floor frame 1, a passenger compartment 3, and a control box 4. The passenger compartment 3 is installed on the upper side of the floor frame 1, and the control box 4 for arranging control equipment is installed inside the floor frame 1. A buffer block 6 is installed inside the floor frame 1, and a front-rear sliding structure is formed between the buffer block 6 and the floor frame 1. A first buffer spring 7 is fixed to the front and rear of the buffer block 6. The buffer blocks 6 are arranged symmetrically outside the control box 4. A fixed block 8 is fixed to the inside of the buffer block 6 and penetrates the inner surface of the floor frame 1. A movable block 9 is nested inside the fixed block 8. The inner end of the movable block 9 is connected to the control box 4 and supports it. A second buffer spring 10 is fixed to the outer end of the movable block 9 and is installed inside the fixed block 8 to buffer the movement of the movable block 9 and buffer the force generated by the deformation of the floor frame 1 from being transmitted to the control box 4.

[0017] An appearance cover 2 is installed on the outside of the floor frame 1, and the appearance cover 2 is wrapped around the outside of the floor frame 1 in an encircling manner, and the appearance cover 2 is positioned between the floor frame 1 and the passenger compartment 3, and decorates the exterior of the floor frame 1.

[0018] The floor frame 1 is made of lightweight material to reduce the overall weight, and the floor frame 1 can be used as a support frame, with the trailing wheel mechanism mounted below the floor frame 1, and vehicle-related control equipment mounted in the control equipment box 4. When the vehicle body collides or the floor frame 1 is deformed, the fixed block 8 can absorb and buffer the deformation of the floor frame 1 in the front-to-rear direction through the action of the first buffer spring 7, and the movable block 9 and the second buffer spring 10 can absorb and buffer the deformation in the left-to-right direction, so that the control equipment box 4 itself can be kept stable and the equipment inside the control equipment box 4 can be protected from damage. In addition, the impact vibration of the floor frame 1 can be buffered, providing a more stable working environment for the equipment inside the control equipment box 4 and preventing damage to the equipment.

[0019] The bottom of the control equipment box 4 is designed to have an open structure, and an installation cover 5 is installed at the bottom of the control equipment box 4, and the installation cover 5 and the control equipment box 4 are detachably connected by a bolt. The installation cover 5 can be opened later to inspect the inside of the control equipment box 4.

[0020] A detachable joint mechanism is provided inside the movable block 9, and the movable block 9 and the control device box 4 are connected via the detachable joint mechanism.

[0021] The detachable connecting mechanism includes a connection block 11, a through-groove 12, a first locking rod 13, a connector 14, and a connecting groove 15. The connection block 11 is fixed on the outside of the control box 4, and is arranged in a one-to-one correspondence with the movable block 9. The inner end of the movable block 9 is provided with a corresponding groove that runs horizontally. The through-groove 12 runs vertically in the center of the connection block 11. The first locking rod 13 is arranged inside and between the movable blocks 9 to form a telescopic connection, and the first locking rod 13 and the through-groove 12 also form a telescopic connection. The connector 14 is fixed on the upper side of the first locking rod 13. The connecting groove 15 runs inside the movable block 9 and is located on the upper side of the connection block 11. A screw connection is formed between the connecting groove 15 and the connector 14. A joining mechanism is provided on the underside of the passenger compartment 3, and the passenger compartment 3 is connected to the floor frame 1 via the joining mechanism. The connecting mechanism includes connecting pins 16, connecting grooves 17, thread grooves 18, and second locking rods 19. The connecting pins 16 are fixed to the underside of the floor frame 1 and are evenly arranged on the underside of the floor frame 1. The connecting grooves 17 are opened on the upper surface of the floor frame 1, and a concave-convex fitting structure is formed between the connecting grooves 17 and the connecting pins 16. The thread grooves 18 are opened on the underside of the connecting pins 16. The second locking rod 19 passes through the underside of the floor frame 1, forming a nested connection between the second locking rod 19 and the floor frame 1. The upper end of the second locking rod 19 is located inside the thread groove 18, and a threaded connection is formed between the second locking rod 19 and the thread groove 18.

[0022] When it is necessary to perform maintenance on the equipment inside the control box 4, the installation cover 5 can be opened to expose the control box 4, and the control box 4 can be removed from the floor frame 1. When removing the control box 4, the first locking rod 13 can be rotated to release the threaded connection between the connector 14 and the connecting groove 15, and the first locking rod 13 can be pulled out of the through groove 12. The control box 4 can then be moved horizontally to release the connection between the connecting block 11 and the movable block 9, thereby removing the control box 4. This is convenient for carrying out large-scale repair work inside the control box 4. The casing 3 can also be disassembled to adjust it according to the needs of use. When disassembling, the second locking rod 19 can be rotated to release the threaded connection between the second locking rod 19 and the threaded groove 18, and then the connecting pin 16 can be pulled out of the connecting groove 17 to realize the disassembly of the casing 3. In this lightweight vehicle body structure, the combination of the first buffer spring 7 and buffer block 6 buffers the impact and deformation of the floor frame 1 in the forward / backward direction, and the combination of the movable block 9 and second buffer spring 10 buffers the impact and deformation of the floor frame 1 in the left / right direction, thereby reducing the impact of force and deformation on the control equipment box 4 and strengthening the protection of the internal equipment. Even after being impacted or deformed, the vehicle body can be controlled normally, and repairing the floor frame 1 does not require repairing the control equipment, reducing the difficulty of subsequent repairs. In this lightweight body structure, the connection block 11 can be fixed to the movable block 9 via the first lock rod 13, and the fixed block 8 can be disassembled from the connection block 11, making it easy to remove the control equipment box 4 and facilitating uniform installation and adjustment of equipment within the control equipment box 4. This lightweight body structure allows the passenger compartment 3 to be disassembled on the floor frame 1 through the removable connection of the connecting pins 16 and connecting grooves 17, and can be replaced with a different type of passenger compartment 3 depending on the application, making it more flexible and versatile to use.

[0023] Any content not described in detail herein belongs to the prior art known to those skilled in the art.

[0024] Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art may still modify the technical solutions recorded in the above embodiments or equivalently replace some of the technical features therein, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall fall within the protection scope of the present invention. [Explanation of symbols]

[0025] 1 floor frame, 2 appearance cover, 3 compartment, 4 control equipment box, 5 installation cover, 6 buffer block, 7 first buffer spring, 8 fixed block, 9 movable block, 10 second buffer spring, 11 connection block, 12 through groove, 13 first lock rod, 14 connector, 15 connection groove, 16 connecting pin, 17 connecting groove, 18 thread groove, 19 second lock rod

Claims

1. A lightweight vehicle body structure including a floor frame (1), a vehicle compartment (3), and a control equipment box (4), the vehicle compartment (3) being installed above the floor frame (1), and the control equipment box (4) for arranging control equipment being installed inside the floor frame (1), A buffer block (6) is installed inside the floor frame (1), and a front-rear sliding structure is formed between the buffer block (6) and the floor frame (1). A first buffer spring (7) is fixed to the front and rear of the buffer block (6). The buffer block (6) is arranged symmetrically on the outside of the control equipment box (4). A fixing block (8) is fixed inside the buffer block (6), and the fixing block (8) penetrates the inner surface of the floor frame (1). A lightweight vehicle body structure characterized in that a movable block (9) is nested inside the lock (8), the inner end of the movable block (9) is connected to the control equipment box (4) and supports the control equipment box (4), and a second buffer spring (10) is fixed to the outer end of the movable block (9), and the second buffer spring (10) is arranged inside the fixed block (8) to buffer the movement of the movable block (9) and buffer the force generated by deformation of the floor frame (1) from being transmitted to the control equipment box (4).

2. The lightweight vehicle body structure according to claim 1, characterized in that an appearance cover (2) is installed on the outside of the floor frame (1), and the appearance cover (2) is wrapped around the outside of the floor frame (1) in an encircling manner, and the appearance cover (2) is positioned between the floor frame (1) and the vehicle interior (3).

3. 2. The lightweight vehicle body structure according to claim 1, wherein the lower part of the control equipment box (4) is designed to have an open structure, an installation cover (5) is installed at the lower part of the control equipment box (4), and the installation cover (5) and the control equipment box (4) are detachably connected by a bolt.

4. A lightweight vehicle body structure as described in claim 1 or 3, characterized in that a detachable joining mechanism is provided inside the movable block (9), and the movable block (9) and the control equipment box (4) are connected via the detachable joining mechanism.

5. The detachable joining mechanism includes a connecting block (11), a through groove (12), a first locking rod (13), a connector (14) and a connecting groove (15); The connection block (11) is fixed to the outside of the control box (4), and the connection block (11) and the movable block (9) are arranged in a one-to-one correspondence. The inner end of the movable block (9) is provided with a groove corresponding to the movable block (9), and the groove is opened in the horizontal direction. The through groove (12) is opened vertically in the center of the connecting block (11), The first log rod (13) is disposed inside the movable block (9) and between the movable blocks (9) to form a telescopic connection, and the first log rod (13) and the through groove (12) form a telescopic connection; 5. The lightweight vehicle body structure according to claim 4, wherein the connecting groove (15) is opened inside the movable block (9), and the connecting groove (15) is located on the upper side of the connecting block (11), and a screw connection is formed between the connecting groove (15) and the connector (14).

6. 2. The lightweight vehicle body structure according to claim 1, wherein a joining mechanism is provided on the underside of the passenger compartment (3), and the passenger compartment (3) is connected to the floor frame (1) via the joining mechanism.

7. The joining mechanism includes a joining pin (16), a joining groove (17), a screw groove (18) and a second lock rod (19); The joint pins (16) are fixed to the underside of the floor frame (1), and the joint pins (16) are evenly arranged on the underside of the floor frame (1); The joint groove (17) is opened on the upper surface of the floor frame (1), and a recessed and protruding fitting structure is formed between the joint groove (17) and the joint pin (16); The screw groove (18) is formed on the underside of the joining pin (16), 7. The lightweight vehicle body structure according to claim 6, wherein the second lock rod (19) penetrates the underside of the floor frame (1), forming a telescopic connection between the second lock rod (19) and the floor frame (1), and the upper end of the second lock rod (19) is located inside the thread groove (18), forming a threaded connection between the second lock rod (19) and the thread groove (18).

Images