Assembled frame

Abstract

The utility model relates to the field of buses, in particular to an assembled frame which comprises a front frame body, a middle frame body and a rear frame body. The front frame body comprises a front chassis and a front vehicle body fixed on the front chassis, the middle frame body comprises a middle chassis and a middle vehicle body fixed on the middle chassis, the rear frame body comprises a rear chassis and a rear vehicle body fixed on the rear chassis, and the front end of the middle chassis and the rear end of the front chassis abut against each other and are detachably connected; the rear end of the middle chassis and the front end of the rear chassis abut against each other and are detachably connected. The front end of the middle vehicle body and the rear end of the front vehicle body abut against each other and are detachably connected. The rear end of the middle vehicle body abuts against the front end of the rear vehicle body and is detachably connected with the front end of the rear vehicle body, the front frame body, the middle frame body and the rear frame body form an integral frame, the middle chassis is arranged between the front chassis and the rear chassis to connect the front chassis and the rear chassis, assembly of the frame is achieved, the front frame body, the rear frame body and the middle frame body can be transported in the transportation process, and the delivery efficiency is improved.

Description

An assembled vehicle frame Technical Field

[0001] This utility model relates to the field of minibuses, specifically to an assembly frame. Background Technology

[0002] Minibuses are a common form of public transportation or passenger transport, playing an important role in many cities and rural areas. They are typically smaller than traditional buses and have fewer seats, usually around ten to thirty, allowing them to navigate more flexibly in various road conditions.

[0003] The minibus frame is the core support of the entire vehicle structure, and its design directly determines the vehicle's load-bearing capacity, safety, and comfort. As a small passenger vehicle, the minibus frame needs to balance high strength and lightweight design while meeting stability requirements under complex road conditions. Minibus frames typically employ a space truss structure or a fully load-bearing frame, welded from high-strength steel tubing. This design uses crisscrossing members to form a closed frame, which both distributes the load and enhances torsional stiffness.

[0004] In the current process of manufacturing and selling vehicle frames, the frames need to be welded uniformly in the factory before being packaged and shipped as a whole. This requires the frame size to be strictly matched with the container size, resulting in poor shipping efficiency. Summary of the Invention

[0005] The purpose of this utility model is to provide an assembly frame that improves the existing overall packaging and shipping of frames, which requires strict matching of frame size with container size, resulting in poor shipping efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An assembled vehicle frame includes a front frame, a middle frame, and a rear frame;

[0008] The front frame includes a front chassis and a front body fixed to the front chassis; the middle frame includes a middle chassis and a middle body fixed to the middle chassis; and the rear frame includes a rear chassis and a rear body fixed to the rear chassis.

[0009] The front end of the middle chassis abuts against the rear end of the front chassis and is then disassembled and connected; the rear end of the middle chassis abuts against the front end of the rear chassis and is then disassembled and connected; the front end of the middle body abuts against the rear end of the front body and is then disassembled and connected; the rear end of the middle body abuts against the front end of the rear body and is then disassembled and connected.

[0010] Furthermore, the front and rear ends of the middle chassis are provided with outwardly protruding limiting blocks, and the rear ends of the front chassis and the front ends of the rear chassis are provided with inwardly recessed limiting grooves. The limiting grooves correspond one-to-one with the limiting blocks, and the limiting blocks are embedded in the limiting grooves.

[0011] Furthermore, a front adhesive layer is provided between the front end of the middle vehicle body and the rear end of the front vehicle body; a rear adhesive layer is provided between the rear end of the middle vehicle body and the front end of the rear vehicle body.

[0012] Furthermore, the mid-chassis includes a front crossbeam, a rear crossbeam, and a main beam assembly fixed between the front and rear crossbeams.

[0013] The limiting block is fixed on the front side of the front crossbeam and the rear side of the rear crossbeam.

[0014] The bottom of the vehicle body is connected to both ends of the front crossbeam, both ends of the rear crossbeam, and both sides of the main beam assembly. The main beam assembly includes multiple parallel main beams, with both ends of the main beams welded to the front and rear crossbeams respectively. Reinforcing rods are fixed between the main beams.

[0015] Furthermore, the main beam, front crossbeam, and rear crossbeam are all provided with center cable routing holes; the front chassis is provided with front cable routing holes; and the rear chassis is provided with rear cable routing holes.

[0016] The center wiring holes of the front crossbeam correspond one-to-one with the front wiring holes and are interconnected. The center wiring holes of the rear crossbeam correspond one-to-one with the rear wiring holes and are interconnected.

[0017] Furthermore, a first support plate is provided on the opposite sides of both the front and rear crossbeams, and an upwardly extending vertical plate is connected to the top surface of the first support plate.

[0018] The vertical plates are respectively attached and fixed to the opposite sides of the front and rear crossbeams;

[0019] One end of the first support plate extends to the bottom of the main beam and is fixed to the bottom surface of the main beam. The other ends of the first support plates of the front and rear crossbeams extend to the bottom surfaces of the front and rear crossbeams respectively and are fixed to the bottom surfaces of the front and rear crossbeams respectively.

[0020] Furthermore, the first support plate and the vertical plate are welded to the front crossbeam, the rear crossbeam, and the main beam. The first support plate has a first welding hole and a second welding hole. The first welding hole is located below the main beam, and the second welding hole is located below the welding positions of the two ends of the main beam with the front crossbeam and the rear crossbeam.

[0021] Furthermore, a second support plate is attached and fixed to the bottom surface of the main beam. The side of the second support plate extends to below the bottom surface of the reinforcing rod and is attached and fixed to the bottom surface of the reinforcing rod.

[0022] Furthermore, the second support plate is welded to the main beam and the support rod, and at least two fourth welding holes are provided on the second support plate, which are distributed below the bottom surface of the main beam and the reinforcing rod.

[0023] Furthermore, weight reduction grooves are provided on both the front and rear chassis.

[0024] By adopting the above technical solution, this utility model has the following advantages compared with the prior art:

[0025] 1. The front frame, middle frame, and rear frame form an integral chassis. The chassis is connected between the front and rear chassis via a mid-chassis, enabling the assembly of the chassis. During transportation, the front frame, rear frame, and middle frame can be transported separately and assembled at the destination, reducing transportation costs and improving delivery efficiency.

[0026] 2. At the same time, the arched structures of the middle body, front body and rear body fit together to increase the connection area between the front frame, rear frame and middle frame, and improve the stability of the connection between them, thereby ensuring that the assembled frame has good structural strength. Attached Figure Description

[0027] Figure 1 is a structural schematic diagram of the assembled vehicle frame of this utility model;

[0028] Figure 2 is an exploded structural diagram of the assembled vehicle frame of this utility model;

[0029] Figure 3 is a schematic diagram of the front frame structure of the assembled vehicle frame described in this utility model;

[0030] Figure 4 is a schematic diagram of the bottom structure of the middle frame of the assembled vehicle frame of this utility model;

[0031] Figure 5 is a bottom view of the middle frame of the assembled vehicle frame of this utility model;

[0032] Figure 6 is an enlarged schematic diagram of part A of the assembled vehicle frame described in this utility model;

[0033] Figure 7 is a schematic diagram of the first support plate structure of the assembled vehicle frame of this utility model.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1. Front frame; 11. Front chassis; 111. Weight reduction groove; 112. Front cable routing hole; 113. Limiting groove; 12. Front body; 121. Circular component;

[0036] 2. Mid-frame; 21. Mid-chassis; 211. Front crossbeam; 2111. Limiting block; 212. Main beam; 213. Rear crossbeam; 214. Reinforcing rod; 215. First support plate; 2151. Vertical plate; 2152. First weld hole; 2153. Second weld hole; 216. Second support plate; 2161. Third weld hole; 217. Mid-line wiring hole; 22. Mid-body; 221. Front adhesive layer; 222. Rear adhesive layer;

[0037] 3. Rear frame; 31. Rear chassis; 311. Rear cable routing hole; 32. Rear body. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0039] Additionally, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" are all based on the orientation or positional relationship shown in the accompanying drawings. They are merely for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element of this utility model must have a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0040] When an element is referred to as being "fixed to," "set on," or "contained on" another element, it can be directly on or indirectly on that other element. When an element is referred to as being "connected to," it can be directly connected to or indirectly connected to that other element.

[0041] Unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Example

[0042] Referring to Figures 1-7, this embodiment provides an assembly frame, including a front frame 1, a middle frame 2, and a rear frame 3. The front frame 1 includes a front chassis 11 and a front body 12 fixed to the front chassis 11. The middle frame 2 includes a middle chassis 21 and a middle body 22 fixed to the middle chassis 21. The rear frame 3 includes a rear chassis 31 and a rear body 32 fixed to the rear chassis 31. The front end of the middle chassis 21 abuts against the rear end of the front chassis 11 and is detachably connected; the rear end of the middle chassis 21 abuts against the front end of the rear chassis 31 and is detachably connected; the front end of the middle body 22 abuts against the rear end of the front body 12 and is detachably connected; the rear end of the middle body 22 abuts against the front end of the rear body 32 and is detachably connected. In this embodiment, the front end of the middle chassis 21 is connected to the rear end of the front chassis 11, the rear end of the middle chassis 21 is connected to the front end of the rear chassis 31, the front end of the middle body 22 is connected to the rear end of the front body 12, and the rear end of the middle body 22 is connected to the front end of the rear body 32 by bolts and nuts.

[0043] The front frame 1, middle frame 2, and rear frame 3 form an integral chassis, which is connected to the front chassis 11 and rear chassis 31 via a middle chassis 21, enabling chassis assembly. During transportation, the front frame 1, rear frame 3, and middle frame 2 can be transported separately and assembled at the destination, improving delivery efficiency, reducing labor and transportation costs, and facilitating modular production to increase production efficiency. Simultaneously, the arched structures of the middle body 22, front body 12, and rear body 32 fit together, increasing the connection area between the front frame 1, rear frame 3, and middle frame 2, improving the stability of the connections, and ensuring the assembled chassis has good structural strength. Furthermore, the front frame 1, middle frame 2, and rear frame 3 are connected by bolts, eliminating the need for a welding workshop during assembly, enabling rapid assembly and reducing labor costs.

[0044] Furthermore, the front and rear ends of the middle chassis 21 are provided with outwardly protruding limiting blocks 2111, and the rear ends of the front chassis 11 and the front ends of the rear chassis 31 are provided with inwardly recessed limiting grooves 113, with each limiting groove 113 corresponding to a limiting block 2111. The limiting blocks 2111 are embedded in the limiting grooves 113, and the limiting blocks 2111 provide a vertical limiting force to the front chassis 11 and the rear chassis 31 to prevent the front chassis 11 and the rear chassis 31 from detaching from the middle chassis 21 in the vertical direction.

[0045] Referring to Figure 1, further, a front adhesive layer 221 is provided between the front end of the middle body 22 and the rear end of the front body 12; a rear adhesive layer 222 is provided between the rear end of the middle body 22 and the front end of the rear body 32. The front adhesive layer 221 and the rear adhesive layer 222 further limit the connection between the front body 12 and the middle body 22, and between the rear body 32 and the middle body 22, improving the structural strength after assembly and providing a certain buffering effect during driving, preventing vibration from affecting the connection stability between the front frame, middle frame, and rear frame. Furthermore, annular members 121 are welded between the front end of the middle body 22 and the rear end of the front body 12, and between the rear end of the middle body 22 and the front end of the rear body 32. The annular members 121 are wound around the front end of the middle body 22 and the rear end of the front body 12, and between the rear end of the middle body 22 and the front end of the rear body 32, limiting the connection between the front body 12, the middle body 22, and the rear body 32, further improving the connection strength between them.

[0046] Specifically, the mid-chassis 21 includes a front crossbeam 211, a rear crossbeam 213, and a main beam 212 assembly fixed between the front crossbeam 211 and the rear crossbeam 213. A limiting block 2111 is fixed to the front side of the front crossbeam 211 and the rear side of the rear crossbeam 213. The bottom end of the mid-body 22 is connected to both ends of the front crossbeam 211, both ends of the rear crossbeam 213, and both sides of the main beam 212 assembly. The main beam 212 assembly includes multiple parallel main beams 212, with both ends of each main beam 212 welded to the front crossbeam 211 and the rear crossbeam 213 respectively. Reinforcing rods 214 are fixed between the main beams 212. In this embodiment, there are three main beams 212, spaced apart between the front crossbeam 211 and the rear crossbeam 213. This reduces the weight of the mid-frame while ensuring good structural strength. The reinforcing rods 214 also improve the structural strength of the mid-chassis 21.

[0047] Furthermore, the main beam 212, front crossbeam 211, and rear crossbeam 213 are all provided with center wiring holes 217; the front chassis 11 is provided with a front wiring hole 112; and the rear chassis 31 is provided with a rear wiring hole 311. The center wiring holes 217 of the front crossbeam 211 correspond one-to-one with the front wiring holes 112 and are interconnected; similarly, the center wiring holes 217 of the rear crossbeam 213 correspond one-to-one with the rear wiring holes 311 and are interconnected. The interconnected center wiring holes 217, front wiring holes 112, and rear wiring holes 311 allow the connecting wires of electronic devices from various parts of the vehicle body to pass through and be routed, providing restraint and support for the connecting wires and ensuring the stability of the wiring connections.

[0048] Referring to Figures 4-7, specifically, a first support plate 215 is provided on the opposite sides of the front crossbeam 211 and the rear crossbeam 213. An upwardly extending vertical plate 2151 is connected to the top surface of the first support plate 215, and the vertical plate 2151 is respectively attached and fixed to the opposite sides of the front crossbeam 211 and the rear crossbeam 213. In this embodiment, the vertical plate 2151 is welded to the front crossbeam 211 and the rear crossbeam 213, making the first support plate 215 appear horizontally, supporting and limiting the main beam 212, and improving the connection strength of the main beam 212. Furthermore, there are two vertical plates 2151, located on both sides of the ends of the main beam 212, giving way to the main beam 212 and ensuring that the first support plate 215 can provide stable support for the main beam 212. At the same time, increasing the connection range between the vertical plate 2151 and the front crossbeam 211 and the rear crossbeam 213 improves the stability within the first support plate.

[0049] Furthermore, one end of the first support plate 215 extends below the main beam 212 and is fixedly attached to the bottom surface of the main beam 212. In this embodiment, the first support plate 215 is welded to the main beam 212, and one end of the first support plate 215 is located below the main beam 212 to support the main beam 212 and improve the connection strength between the main beam 212 and the front crossbeam 211 and the rear crossbeam 213. The other end of the first support plate 215 of the front crossbeam 211 and the rear crossbeam 213 extends to the bottom surface of the front crossbeam 211 and the rear crossbeam 213, respectively, and is fixedly attached to the bottom surface of the front crossbeam 211 and the rear crossbeam 213, respectively. In this embodiment, the other end of the first support plate 215 is welded to the bottom surfaces of the front crossbeam 211 and the rear crossbeam 213 to form a horizontal connection structure for the front crossbeam 211 and the rear crossbeam 213. At the same time, the vertical plate 2151 connects the front crossbeam 211 and the rear crossbeam 213 in the vertical direction to form a multi-directional connection structure, which further improves the installation strength of the first support plate 215.

[0050] Furthermore, the first support plate 215 and the vertical plate 2151 are welded to the front crossbeam 211, the rear crossbeam 213, and the main beam 212. Referring to Figure 6, the first support plate 215 has a first weld hole 2152 and a second weld hole 2153. The first weld hole 2152 is located below the main beam 212, and the second weld hole 2153 is located below the welding positions at both ends of the main beam 212 with the front crossbeam 211 and the rear crossbeam 213. The first weld hole 2152 increases the length of the welding position between the first support plate 215 and the main beam 212, further improving the connection strength between the first support plate 215 and the main beam 212. The second weld hole 2153 is located at the end of the main beam 212 and extends to the bottom of the front crossbeam 211 and the rear crossbeam 213. While increasing the length of the welding position between the first support plate 215 and the main beam 212, the front crossbeam 211 and the rear crossbeam 213, it also welds the connection positions between the two ends of the main beam 212 and the front crossbeam 211 and the rear crossbeam 213, further improving the structural strength of the first support plate 215, the main beam 212, the front crossbeam 211 and the rear crossbeam 213.

[0051] Furthermore, a second support plate 216 is fixedly attached to the bottom surface of the main beam 212. The side of the second support plate 216 extends below the bottom surface of the reinforcing rod 214 and is fixedly attached to the bottom surface of the reinforcing rod 214. The second support plate 216 is located below the bottom surfaces of the main beam 212 and the reinforcing rod 214, providing support and limiting at the connection position between the main beam 212 and the reinforcing rod 214, thereby improving the connection strength between them. In this embodiment, the second support plate 216 is welded to the main beam 212 and the support rod. At least two fourth welding holes are provided on the second support plate 216, which are distributed below the bottom surfaces of the main beam 212 and the reinforcing rod 214. The fourth welding holes increase the length of the welding position between the second support plate 216 and the main beam 212 and the support rod, thereby increasing the connection strength between the second support plate 216 and the main beam 212 and the support rod, and further improving the structural strength of the middle chassis 21.

[0052] In this embodiment, weight reduction grooves 111 are provided on both the front chassis 11 and the rear chassis 31. The weight of the front chassis 11 and the rear chassis 31 is reduced by the weight reduction grooves 111, so that the overall center of gravity of the frame moves closer to the middle chassis 21, thereby improving the stability of the frame after assembly.

[0053] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. An assembled vehicle frame, characterized in that, The system includes a front frame, a middle frame, and a rear frame. The front frame includes a front chassis and a front body fixed to the front chassis. The middle frame includes a middle chassis and a middle body fixed to the middle chassis. The rear frame includes a rear chassis and a rear body fixed to the rear chassis. The front end of the middle chassis abuts against the rear end of the front chassis and is detachably connected. The rear end of the middle chassis abuts against the front end of the rear chassis and is detachably connected. The front end of the middle body abuts against the rear end of the front body and is detachably connected. The rear end of the middle body abuts against the front end of the rear body and is detachably connected.

2. The assembled vehicle frame according to claim 1, characterized in that: The front and rear ends of the middle chassis are provided with outwardly protruding limiting blocks, and the rear ends of the front chassis and the front ends of the rear chassis are provided with inwardly recessed limiting grooves. The limiting grooves correspond one-to-one with the limiting blocks, and the limiting blocks are embedded in the limiting grooves.

3. The assembled vehicle frame according to claim 1, characterized in that: A front adhesive layer is provided between the front end of the middle vehicle body and the rear end of the front vehicle body; a rear adhesive layer is provided between the rear end of the middle vehicle body and the front end of the rear vehicle body.

4. The assembled vehicle frame according to claim 2, characterized in that: The mid-chassis includes a front crossbeam, a rear crossbeam, and a main beam assembly fixed between the front and rear crossbeams. The limiting block is fixed on the front side of the front crossbeam and the rear side of the rear crossbeam. The bottom of the mid-body is connected to both ends of the front crossbeam, both ends of the rear crossbeam, and both sides of the main beam assembly. The main beam assembly includes multiple parallel main beams. The two ends of the main beams are welded to the front and rear crossbeams respectively. Reinforcing rods are fixed between the main beams.

5. The assembled vehicle frame according to claim 4, characterized in that: The main beam, front crossbeam, and rear crossbeam are all provided with center cable routing holes; the front chassis is provided with front cable routing holes; the rear chassis is provided with rear cable routing holes; the center cable routing holes of the front crossbeam correspond one-to-one with the front cable routing holes and are interconnected; the center cable routing holes of the rear crossbeam correspond one-to-one with the rear cable routing holes and are interconnected.

6. The assembled vehicle frame according to claim 4, characterized in that: Each of the front and rear crossbeams has a first support plate on its opposite side. The top surface of the first support plate is connected to an upwardly extending vertical plate, which is respectively attached and fixed to the opposite side of the front and rear crossbeams. One end of the first support plate extends to the bottom of the main beam and is attached and fixed to the bottom surface of the main beam. The other end of the first support plate of the front and rear crossbeams extends to the bottom surface of the front and rear crossbeams respectively and is attached and fixed to the bottom surface of the front and rear crossbeams respectively.

7. The assembled vehicle frame according to claim 6, characterized in that: The first support plate and the vertical plate are welded to the front crossbeam, the rear crossbeam and the main beam. The first support plate has a first welding hole and a second welding hole. The first welding hole is located below the main beam and the second welding hole is located below the welding positions of the two ends of the main beam with the front crossbeam and the rear crossbeam.

8. The assembled vehicle frame according to claim 4, characterized in that: A second support plate is attached and fixed to the bottom surface of the main beam. The side of the second support plate extends to the bottom surface of the reinforcing rod and is attached and fixed to the bottom surface of the reinforcing rod.

9. The assembled vehicle frame according to claim 8, characterized in that: The second support plate is welded to the main beam and the support rod. At least two fourth welding holes are provided on the second support plate, which are distributed below the bottom surface of the main beam and the reinforcing rod.

10. The assembled vehicle frame according to claim 1, characterized in that: Weight reduction grooves are provided on both the front and rear chassis.

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