A connection stable upper and lower frame

Abstract

The utility model relates to the field of frame welding installation discloses a kind of upper and lower frames of stable connection, including frame body and pipe fitting, the fixed block one is fixedly connected in the frame body outside, the fixed rod is arranged in the fixed block one inside, the fixed block two is fixedly connected in the fixed rod outside, the support rod is fixedly connected in the fixed block one inside, the spring is arranged in the support rod outside, the fixed block one inside is provided with the limit block one, the fixed plate one is rotatably connected in the pipe fitting outer wall, the fixed plate one top end is fixedly connected with pad block. In the utility model, the utility model innovative design quick installation structure can quickly complete frame installation, efficiency is improved nearly 80% and connection is stable;Equipped with multistage adjusting mechanism, can adjust the spacing between clamping block and fixed plate angle, double screw cap reinforcement, guarantee welding quality, save time and effort.

Description

Technical Field

[0001] This utility model relates to the field of vehicle frame welding and installation, and in particular to a stable upper and lower vehicle frame connection. Background Technology

[0002] In modern industrial manufacturing, the chassis, as a core supporting component of various mechanical equipment and vehicles, directly affects the stability and safety of the overall structure through its installation and welding quality. With the continuous improvement of industrial production efficiency and quality requirements, higher standards are being placed on the speed, precision, and reliability of chassis installation and welding processes.

[0003] Currently, traditional vehicle frame installation methods mostly employ bolt fastening and snap-fit ​​splicing. These installation processes often require operators to repeatedly align and tighten, making the steps cumbersome and time-consuming. A complete vehicle frame installation typically takes several minutes or even longer, severely restricting production efficiency. Furthermore, when welding the vehicle frame, the existing equipment's fixing mechanisms lack adjustment flexibility, making it difficult to meet the needs of different frame specifications and diverse welding angles. Moreover, its single fixing method cannot effectively restrict frame displacement during welding, easily leading to excessively large weld gaps, affecting weld quality and requiring additional manpower for rework and repair. In addition, the connection stability of traditional installation structures is poor. Under complex road conditions or high-intensity usage scenarios, the frame is prone to loosening, detachment, or even disintegration due to external impacts and continuous vibrations, posing safety hazards and failing to meet the modern industrial requirements for efficient, safe, and high-quality vehicle frame installation and welding. Therefore, to address these technical problems, this application proposes a stable connection between upper and lower vehicle frames. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a stable upper and lower frame connection. This utility model features an innovative quick-installation structure that allows for rapid frame installation, increasing efficiency by nearly 80% and ensuring a stable connection. It is equipped with a multi-level adjustment mechanism to adjust the spacing between clamping blocks and the angle of the fixing plate, and double-nut reinforcement to ensure welding quality, saving time and effort.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A sturdy upper and lower frame includes a frame body and tubular components. A fixing block is fixedly connected to the outside of the frame body. A fixing rod is installed inside the fixing block. A second fixing block is fixedly connected to the outside of the fixing rod. A support rod is fixedly connected inside the fixing block. A spring is installed outside the support rod. A limit block is installed inside the fixing block. A fixing plate is rotatably connected to the outer wall of the tubular components. A pad is fixedly connected to the top of the fixing plate. A screw limit block is fixedly connected to the top of the pad. A screw is installed inside the screw limit block. A clamping block is fixedly connected to the top of the screw. A second screw is fixedly connected to the outside of the fixing plate. A nut is installed on the outer wall of the second screw.

[0007] Furthermore, the pipe fitting has a second groove inside, and the second screw is disposed inside the second groove.

[0008] Furthermore, a fixing plate is fixedly connected to the outer wall of the pipe fitting, and uprights are installed inside the frame.

[0009] Furthermore, a slot is provided inside the frame, and the fixing block is disposed inside the slot.

[0010] Furthermore, a second limiting block is fixedly connected to the top of the first limiting block, and a rotating column is rotatably connected inside the first limiting block.

[0011] Furthermore, the spring is fixedly connected to both ends of the fixed block, and the support rod is slidably connected inside the fixed block.

[0012] Furthermore, the spring is fixedly connected to both ends of the fixed block, and the support rod is slidably connected inside the fixed block.

[0013] Furthermore, the rotating column is rotatably connected inside the fixed block and the limiting block.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, the innovative quick-installation structure achieves plug-and-lock at the frame head through the linkage of fixing block two, limiting block and spring. Compared with the traditional installation method, the operator only needs to simply plug and unplug fixing block two, and the frame can be installed within 10 seconds, improving the installation efficiency by nearly 80%. The limiting locking mechanism after the spring returns to its original position can withstand external force impact and continuous vibration of up to 500N, ensuring that the frame remains firmly connected in complex road conditions and high-intensity use, effectively eliminating the risk of detachment and disintegration due to vibration, and laying a solid safety foundation for subsequent processing and actual use.

[0016] 2. In this utility model, the device is equipped with a multi-stage adjustment mechanism, which allows for free adjustment of the clamping block spacing via screw one, adapting to the fixing requirements of different frame specifications. The combination design of slot two and screw two enables precise adjustment of the fixing plate angle, meeting diverse welding angle requirements. The double-nut reinforcement design achieves double stable locking of the frame, effectively suppressing frame displacement and shaking during welding, preventing excessive weld gaps from the source, ensuring welding quality, and simultaneously freeing up manpower, making welding operations more time-saving and labor-saving. Attached Figure Description

[0017] Figure 1 This is a perspective view of a stable upper and lower frame according to the present invention.

[0018] Figure 2 This is a schematic diagram of a fixing block for a stable connection between upper and lower vehicle frames, as proposed in this utility model.

[0019] Figure 3 This is a schematic diagram of a limiting block for a stable connection between the upper and lower vehicle frames proposed in this utility model.

[0020] Figure 4 A schematic diagram of a fixing plate for a stable connection between the upper and lower vehicle frames proposed in this utility model.

[0021] Legend:

[0022] 1. Frame; 2. Fixing block one; 3. Pipe fitting; 4. Fixing plate one; 5. Fixing plate two; 6. Spring; 7. Groove one; 8. Fixing block two; 9. Fixing rod; 10. Limiting block one; 11. Support rod; 12. Limiting block two; 13. Rotating column; 14. Screw one; 15. Screw limiting block; 16. Pad; 17. Clamping block; 18. Nut; 19. Groove two; 20. Screw two; 21. Upright. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Reference Figures 1-3The frame 1 and the pipe fitting 3 are connected together. A fixing block 2 is fixedly connected to the outside of the frame 1 for direct fixation of the upright 21. A fixing rod 9 is installed inside the fixing block 2. A fixing block 8 is fixedly connected to the outside of the fixing rod 9. Pushing the fixing block 8 moves the fixing rod 9. A support rod 11 is fixedly connected inside the fixing block 2. A spring 6 is installed outside the support rod 11. A limit block 10 is installed inside the fixing block 2 to fix the fixing rod 9, thus ensuring that the fixing block 8 is securely connected inside the upright 21, making the upright 21 and the frame 1 firmly connected together. The outer wall of the pipe fitting 3 is rotated. The device is equipped with a fixing plate 4, which allows for better adjustment of the welding angle along the rotation direction of the pipe fitting. A pad 16 is fixedly connected to the top of the fixing plate 4, and a screw limit block 15 is fixedly connected to the top of the pad 16. A screw 14 is installed inside the screw limit block 15, and a clamping block 17 is fixedly connected to the top of the screw 14. The frame is fixed by rotating the screw 14. A screw 20 is fixedly connected to the outside of the fixing plate 4, and a nut 18 is installed on the outer wall of the screw 20. After adjusting the welding angle, tighten the two nuts 18 to fix the angle of the fixing plate 4, which facilitates the welding operation.

[0025] Reference Figures 2-4 The pipe fitting 3 has a slot 19 inside, and a screw 20 is set inside the slot 19, which allows the fixing plate 4 to rotate along the slot 19 to adjust the required welding angle. The outer wall of the pipe fitting 3 is fixedly connected to a fixing plate 5 to fix another frame. The frame 1 has a vertical pole 21 inside, which can pass through the frame 1 for quick installation. The frame 1 has a slot 7 inside, and a fixing block 8 is set inside the slot 7. The fixing block 8 limits and fixes the frame 1 and the vertical pole 21 inside the slot 7. The top of the limiting block 10 is fixedly connected to the limiting block 22 to limit the elasticity of the spring 6. The limiting block 10 is rotatably connected to a rotating column 13 inside, so that the limiting block 10 can rotate along the rotating column 13. The limiting block 10 can move up and down and return to its original position along the rotating column 13. The spring 6 is fixedly connected to both ends of the fixing block 2, and the fixed connection is not easy to fall off. The support rod 11 is slidably connected inside the fixing block 2.

[0026] Working Principle: This invention involves pulling out the fixing block 28 and inserting the head of the frame into the fixing ring of the frame from bottom to top. Then, the fixing block 28 is pushed inward, causing the fixing rods 9 at both ends of the fixing block 28 to enter the grooves of the limiting block 10. When the fixing rods 9 enter the grooves, they push the limiting block 10 upward. The limiting block 10 is connected by the rotation of the rotating column 13, thereby compressing the spring 6 at its end. When the fixing rods 9 are fully inserted into the grooves, the spring 6 loses its thrust and returns to its original state, thus pushing the limiting block 10 downward. This allows the limiting block 10 to firmly fix the fixing rods 9 inside the grooves, enabling quick installation of the head of the frame. The frame is also less prone to falling off or disassembling. The clamping block 17 and the fixing plate 25 are adjusted by rotating the screw 14 on the fixing plate 25. The gap between the two frames is adjusted to allow the corresponding frame to be inserted. Then, screw 14 is rotated to fix it, so that the gap between clamp 17 and fixing plate 4 can accommodate the frame to be welded. Then, screw 14 is rotated to fix the frame. After the two frames to be welded are fixed, the angle of fixing plate 4 is adjusted along slot 219 so that fixing plate 4 and fixing plate 25 form the angle of the frame to be welded. Then, the nut 18 inside screw 20 is tightened for the first reinforcement, and then the nut 18 outside is tightened for the second fixation to prevent the frame from moving during the welding process and causing large gaps in the weld. After the reinforcement is completed, only the connection between the two frames needs to be welded. There is no need to fix the frame continuously, saving time.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., 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 sturdy upper and lower frame, comprising a frame body (1) and tubular components (3), characterized in that: The frame (1) is externally fixedly connected to a fixing block 1 (2), the fixing block 1 (2) is internally provided with a fixing rod (9), the fixing rod (9) is externally fixedly connected to a fixing block 2 (8), the fixing block 1 (2) is internally fixedly connected to a support rod (11), the support rod (11) is externally provided with a spring (6), the fixing block 1 (2) is internally provided with a limit block 1 (10), the outer wall of the pipe fitting (3) is rotatably connected to a fixing plate 1 (4), the top of the fixing plate 1 (4) is fixedly connected to a pad (16), the top of the pad (16) is fixedly connected to a screw limit block (15), the screw limit block (15) is internally provided with a screw 1 (14), the top of the screw 1 (14) is fixedly connected to a clamping block (17), the fixing plate 1 (4) is externally fixedly connected to a screw 2 (20), the outer wall of the screw 2 (20) is provided with a nut (18).

2. The stable upper and lower frame according to claim 1, characterized in that: The pipe fitting (3) has a slot two (19) inside, and the screw two (20) is set inside the slot two (19).

3. The stable upper and lower frame according to claim 1, characterized in that: The outer wall of the pipe fitting (3) is fixedly connected to a fixing plate (5), and the frame (1) is provided with a vertical pole (21).

4. The stable upper and lower frame according to claim 1, characterized in that: The frame (1) has a slot (7) inside, and the fixing block (8) is set inside the slot (7).

5. A securely connected upper and lower frame according to claim 1, characterized in that: The top of the limiting block one (10) is fixedly connected to the limiting block two (12), and the limiting block one (10) is rotatably connected to the rotating column (13).

6. The stable upper and lower frame according to claim 1, characterized in that: The spring (6) is fixedly connected to both ends of the fixed block (2), and the support rod (11) is slidably connected inside the fixed block (2).

7. A sturdy upper and lower frame according to claim 1, characterized in that: The spring (6) is fixedly connected to both ends of the fixed block (2), and the support rod (11) is slidably connected inside the fixed block (2).

8. A securely connected upper and lower frame according to claim 5, characterized in that: The rotating column (13) is rotatably connected inside the fixed block (2) and the limiting block (10).

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