Frame connecting and fixing device

Abstract

This utility model relates to the field of vehicle frame technology and provides a vehicle frame connection and fixing device, including a connection and fixing mechanism composed of a connecting plate and connecting screws. The connecting plate is located between the rear frame and the front frame and is symmetrically arranged on the left and right sides of the front and rear frames. The two ends of the connecting plate are respectively set as a narrow side and a wide side. The narrow side of the connecting plate can effectively avoid the welds on the rear frame. This design solves the problem of mutual interference between connecting parts and welds in the prior art, ensuring the integrity of the original welds on the rear frame and the reliability of the connection, and avoiding the situation where an unreasonable connection position is forced to be selected due to avoiding welds. Moreover, the connecting plate can better fit the connection parts of the front and rear frames, making the connection more stable, distributing the force on the connection parts, improving the overall structural strength of the vehicle frame, and avoiding the problem of loose connection or uneven stress between the front and rear frames.

Description

Technical Field

[0001] This utility model belongs to the field of vehicle frame technology, and in particular relates to a vehicle frame connection and fixing device. Background Technology

[0002] Among the structural components of various vehicles, the chassis, as a key component that supports the body, powertrain, and other parts, directly affects the vehicle's driving safety and service life due to the stability of its connections. The chassis typically consists of a front chassis and a rear chassis, and the connection between the front and rear chassis relies on a specialized chassis connection and fixing device. The performance of this device plays a decisive role in the structural strength and stability of the entire chassis.

[0003] The existing frame connection and fixing device generally includes a connecting plate for connecting the front frame and the rear frame and connecting screws for fixing. The connecting plate is usually a straight plate structure, and its two ends are connected to the front frame and the rear frame respectively by connecting screws, connecting the front frame and the rear frame into a whole.

[0004] However, existing frame connection and fixing devices have many technical defects in practical applications: First, the structural design of existing connecting plates lacks specificity. When connecting with the rear frame, it is difficult to avoid the welds on the rear frame, which severely restricts the connection position. If the connection is forced near the weld, it will not only damage the integrity of the original weld on the rear frame and affect the structural strength of the rear frame, but also reduce the stability of the connection due to the mutual interference between the connecting parts and the weld, posing a safety hazard.

[0005] Therefore, in view of the above situation, there is an urgent need to develop a frame connection and fixing device to overcome the shortcomings in current practical applications. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model embodiment is to provide a vehicle frame connection and fixing device to solve the problems in the background technology mentioned above.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A vehicle frame connection and fixing device includes a connection and fixing mechanism located between a front frame and a rear frame. The connection and fixing mechanism consists of a connecting plate and connecting screws. The connecting plate is located between the rear frame and the front frame and is symmetrically arranged on the left and right sides of the front and rear frames. The two ends of the connecting plate are respectively set as a narrow side and a wide side. The narrow side of the connecting plate is fixedly connected to the rear frame by connecting screws, and the wide side of the connecting plate is fixedly connected to the front frame by connecting screws.

[0009] As a further technical solution of this utility model, the connecting plate adopts an L-shaped plate structure.

[0010] As a further technical solution of this utility model, the narrow side of the connecting plate is provided with three screw holes that cooperate with the connecting screws, and the wide side of the connecting plate is provided with two screw holes, and the two screw holes on the wide side are on the same horizontal plane.

[0011] As a further technical solution of this utility model, a connecting block and a square tube are respectively fixed on the rear frame. The connecting block and the square tube are both fixed on the rear frame by welding. The connecting block and the square tube are both located between two connecting plates. The connecting block has a connecting hole that mates with a connecting screw. The square tube has two connecting holes. The connecting holes on the connecting block and the square tube mate with the screw holes on the narrow side of the connecting plate.

[0012] As a further technical solution of this utility model, two connecting holes that mate with connecting screws are horizontally provided on the front frame, and the two connecting holes on the front frame respectively mate with two screw holes on the wide side of the connecting plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The connecting and fixing mechanism consists of a connecting plate and connecting screws. The two ends of the connecting plate are respectively set as a narrow side and a wide side. The narrow side of the connecting plate is fixedly connected to the rear frame through the connecting screws, and the wide side of the connecting plate is fixedly connected to the front frame through the connecting screws. The narrow side of the connecting plate can effectively avoid the weld on the rear frame. This design solves the problem of mutual interference between the connecting parts and the weld in the prior art, ensures the integrity of the original weld on the rear frame and the reliability of the connection, and avoids the situation of being forced to choose an unreasonable connection position due to avoiding the weld.

[0015] The connecting plate preferably adopts an L-shaped plate structure. The L-shaped connecting plate can better fit the connection parts of the front frame and the rear frame, making the connection more stable, distributing the force on the connection parts, improving the overall structural strength of the frame, and avoiding problems such as loose connection or uneven force between the front frame and the rear frame.

[0016] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the installation of the frame connection and fixing device provided in an embodiment of the present utility model.

[0018] Figure 2An exploded view of the frame connection and fixing device provided in an embodiment of this utility model.

[0019] Figure 3 for Figure 1 Enlarged view of the structure at point A in the middle.

[0020] Figure 4 for Figure 2 Enlarged view of the structure at point B.

[0021] Reference numerals: 1-Rear frame, 11-Connecting block, 12-Square tube, 2-Front frame, 3-Connecting fixing mechanism, 31-Connecting plate, 32-Connecting screw, 4-Connecting hole. Detailed Implementation

[0022] 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 merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0024] like Figures 1 to 4 As shown, a vehicle frame connection and fixing device provided as an embodiment of this utility model includes a connection and fixing mechanism 3. The connection and fixing mechanism 3 is located between the front frame 2 and the rear frame 1. The connection and fixing mechanism 3 is composed of a connecting plate 31 and a connecting screw 32. The connecting plate 31 is located between the rear frame 1 and the front frame 2 and is symmetrically arranged on the left and right sides of the front frame 2 and the rear frame 1. The two ends of the connecting plate 31 are respectively set as a narrow side and a wide side. The narrow side of the connecting plate 31 is fixedly connected to the rear frame 1 by the connecting screw 32, and the wide side of the connecting plate 31 is fixedly connected to the front frame 2 by the connecting screw 32. The narrow side of the connecting plate 31 can effectively avoid the weld on the rear frame 1. This design solves the problem of mutual interference between the connecting parts and the weld in the prior art, ensures the integrity of the original weld on the rear frame 1 and the reliability of the connection, and avoids the situation where an unreasonable connection position is forced to be selected due to avoiding the weld.

[0025] like Figures 1 to 4 As shown, in a preferred embodiment of the present invention, the connecting plate 31 preferably adopts an L-shaped plate structure. The L-shaped connecting plate 31 can better fit the connection part of the front frame 2 and the rear frame 1, making the connection more stable, dispersing the force on the connection part, improving the structural strength of the overall frame, and avoiding the problem of loose connection or uneven force between the front frame 2 and the rear frame 1.

[0026] like Figures 1 to 4As shown, in a preferred embodiment of the present invention, the connecting plate 31 has three screw holes on its narrow side that mate with the connecting screws 32, and two screw holes on its wide side, and the two screw holes on the wide side are on the same horizontal plane.

[0027] like Figures 1 to 4 As shown in the preferred embodiment of this utility model, a connecting block 11 and a square tube 12 are respectively fixed on the rear frame 1. The connecting block 11 and the square tube 12 are preferably fixed to the rear frame 1 by welding. The connecting block 11 and the square tube 12 are both located between two connecting plates 31. The connecting block 11 has a connecting hole 4 that cooperates with the connecting screw 32. The square tube 12 has two connecting holes 4. The connecting holes 4 on the connecting block 11 and the square tube 12 cooperate with the screw holes on the narrow side of the connecting plate 31. The welded connecting block 11 and the square tube 12 can form a stable whole with the rear frame 1. Together with the connecting plates 31 on both sides, the front frame 2 and the rear frame 1 are fixed from multiple angles, making the connection between the two tighter, improving the overall rigidity of the frame, and reducing the shaking and wear of the connection parts.

[0028] like Figures 1 to 4 As shown, in a preferred embodiment of the present invention, two connecting holes 4 are horizontally provided on the front frame 2 to cooperate with the connecting screws 32. The two connecting holes 4 on the front frame 2 are respectively cooperated with the two screw holes on the wide side of the connecting plate 31.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A vehicle frame connection and fixing device, characterized in that, The device includes a connecting and fixing mechanism located between the front frame and the rear frame. The connecting and fixing mechanism consists of a connecting plate and connecting screws. The connecting plate is located between the rear frame and the front frame and is symmetrically arranged on the left and right sides of the front frame and the rear frame. The two ends of the connecting plate are respectively set as a narrow side and a wide side. The narrow side of the connecting plate is fixedly connected to the rear frame by connecting screws, and the wide side of the connecting plate is fixedly connected to the front frame by connecting screws.

2. The vehicle frame connection and fixing device according to claim 1, characterized in that, The connecting plate adopts an L-shaped plate structure.

3. The vehicle frame connection and fixing device according to claim 1, characterized in that, The connecting plate has three screw holes on its narrow side that mate with connecting screws, and two screw holes on its wide side, with the two screw holes on the wide side being on the same horizontal plane.

4. The vehicle frame connection and fixing device according to claim 1, characterized in that, A connecting block and a square tube are fixed to the rear frame respectively. The connecting block and the square tube are both fixed to the rear frame by welding. The connecting block and the square tube are located between two connecting plates. The connecting block has a connecting hole that mates with a connecting screw. The square tube has two connecting holes. The connecting holes on the connecting block and the square tube mate with the screw holes on the narrow side of the connecting plate.

5. The vehicle frame connection and fixing device according to claim 1, characterized in that, The front frame has two horizontally formed connection holes that mate with connecting screws. The two connection holes on the front frame mate with two screw holes on the wide side of the connecting plate, respectively.

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