A four-wheel drive vehicle frame convenient to install

Abstract

The utility model discloses a four -wheel -drive car frame convenient to installation, including frame and bottom plate, the bottom plate lower wall slidingly connected with drive board, the drive board inner wall is provided with multiple groups of sliding hole. The utility model discloses, through single -time rotation operation drive multiple clamping structure synchronous action, the rigid fixing of the frame lower wall multiple connecting column is completed one -off, has solved the problem that the traditional frame needs to lock in point -by -point and leads to the low assembly efficiency, and the fixed point few leads to the unreliable connection of problem, is especially suitable for the four -wheel -drive car competition scene of frequently dismounting.

Description

Technical Field

[0001] This utility model relates to the field of vehicle frame technology, and in particular to a four-wheel drive vehicle frame that is easy to install. Background Technology

[0002] Currently, existing technology proposes a chassis frame for a hybrid four-wheel drive test vehicle that is easy to install. The frame includes a chassis body and a base plate. Positioning grooves are formed on both sides of the central surface of the base plate, and an opening is formed on the central surface of the base plate. A limiting rod is fixedly installed within the opening. Insert blocks are fixedly connected to both sides of the bottom end of the chassis body. Moving two sliders away from each other causes two fixing plates to move away from each other, allowing the two fixing plates to insert into the limiting holes, thus limiting the insertion blocks and fixing them in the slots. This completes the installation and fixing of the chassis body. By positioning the chassis body and base plate, and then twisting the threaded rod, the two fixing plates limit the insertion blocks, completing the connection between the chassis body and the base plate. This method is relatively convenient to install and easier to operate.

[0003] However, the above-mentioned improved technology has obvious drawbacks. It only fixes the frame and the base plate by inserting the front and rear fixing plates into a set of limiting holes, while the plugs and slots on both sides can only play a positioning role and do not play a fixing role. As a result, there are very few fixed positions for the frame and the connection reliability is insufficient. Therefore, it is necessary to improve and optimize the frame structure of four-wheel drive vehicles to facilitate installation. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a four-wheel drive vehicle frame that is easy to install.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a four-wheel drive vehicle frame that is easy to install, comprising a frame and a base plate. A drive plate is slidably connected to the lower wall of the base plate. The inner wall of the drive plate is provided with multiple sets of sliding holes, which are oblong in shape. The frame is fixedly connected to the upper wall of the base plate. Multiple sets of connecting rods are fixedly connected to the lower wall of the frame. The multiple sets of connecting rods are respectively close to the front, rear, left, and right sides of the frame and correspond to the positions of the multiple sets of sliding holes. The end of the connecting rod away from the frame passes through the inner wall of the base plate and the inner wall of the sliding hole in sequence and extends to the lower side of the drive plate. A wedge for engaging the connecting rod is provided on the lower wall of the drive plate and to the right of the sliding hole. An engaging structure is provided between the wedge and the connecting rod. A second rotating seat and a first rotating seat are fixedly connected to the lower wall of the base plate and close to the left and right ends, respectively. A screw is rotatably connected between the first rotating seat and the second rotating seat. A connecting seat is threadedly connected to the outer wall of the screw and between the first rotating seat and the second rotating seat. The upper wall of the connecting seat is fixedly connected to the lower wall of the drive plate.

[0006] As a further description of the above technical solution:

[0007] Two sets of first fixing frames, arranged in a left-right distribution, are fixedly connected to the lower wall of the base plate near the front wall. Two sets of second fixing frames, arranged in a left-right distribution, are fixedly connected to the lower wall of the base plate near the rear wall. The two sets of first fixing frames are respectively opposite to one set of second fixing frames. A sliding groove is provided on the opposite side of the first fixing frame and the second fixing frame near the lower wall of the base plate. The drive plate is slidably connected to the inner side wall of the sliding groove.

[0008] As a further description of the above technical solution:

[0009] The snap-fit ​​structure includes an annular groove and a snap-fit ​​slot. The annular groove is located on the outer wall of the connecting rod and at the end of the connecting rod extending to the lower side of the drive plate. The snap-fit ​​slot is located at the end of the wedge facing the connecting rod. The inner wall size of the snap-fit ​​slot is adapted to the annular groove. The lower wall of the wedge, located on the side near the connecting rod, is provided with an inclined surface to facilitate the insertion of the wedge into the annular groove. The frame and the base plate are fixed together by the engagement of the snap-fit ​​slot and the annular groove.

[0010] As a further description of the above technical solution:

[0011] Multiple sets of wear-resistant sleeves are fixedly connected to the inner wall of the base plate. Each set of wear-resistant sleeves corresponds to a set of connecting rods. The outer wall of the connecting rod is slidably connected to the inner wall of the wear-resistant sleeve.

[0012] As a further description of the above technical solution:

[0013] The inner wall of the drive plate is provided with multiple sets of hollow holes for weight reduction on both the front and rear sides of the connecting seat, and the lower wall of the drive plate is provided with a flange for improving the structural strength of the drive plate at the lower opening of the hollow holes.

[0014] As a further description of the above technical solution:

[0015] A locking screw is threaded onto the upper wall of the base plate near the right wall, and the screw is fixed to the base plate by the locking screw.

[0016] As a further description of the above technical solution:

[0017] The right end of the screw passes through the inner wall of the first rotating seat and is fixedly connected to a handwheel.

[0018] This utility model has the following beneficial effects:

[0019] Compared with existing technologies, this easy-to-install four-wheel drive vehicle frame drives multiple snap-fit ​​structures to move synchronously through a single rotation operation, and completes the rigid fixation of multiple connecting columns on the lower wall of the frame in one go. This solves the problems of low assembly efficiency caused by the need for point-by-point locking of traditional frames and unreliable connection caused by the small number of fixing points. It is especially suitable for four-wheel drive vehicle racing scenarios that require frequent disassembly and assembly. Attached Figure Description

[0020] Figure 1 This utility model provides a schematic diagram of the overall structure of a four-wheel drive vehicle frame that is easy to install.

[0021] Figure 2 A top-view schematic diagram of the drive plate and base plate connection structure of a four-wheel drive vehicle frame that is easy to install, as proposed in this utility model.

[0022] Figure 3 This utility model proposes an easy-to-install four-wheel drive vehicle frame. Figure 2 A magnified view of a section at point A in the middle;

[0023] Figure 4 This is a top-view schematic diagram of a partial wedge block structure for a four-wheel drive vehicle frame that is easy to install, as proposed in this utility model.

[0024] Figure 5 This is a partial schematic diagram of the front structure of a wedge block for a four-wheel drive vehicle frame that is easy to install, as proposed in this utility model.

[0025] Figure 6 This utility model presents a partial sectional view of the frame, base plate, and connecting rod connection structure of a four-wheel drive vehicle frame that is easy to install.

[0026] Legend:

[0027] 1. Base plate; 2. Frame; 3. First rotating seat; 4. Handwheel; 5. Locking screw; 6. First fixing bracket; 7. Second fixing bracket; 8. Drive plate; 9. Hole; 10. Flanged edge; 11. Second rotating seat; 12. Screw; 13. Connecting seat; 14. Connecting rod; 15. Sliding hole; 16. Wedge; 17. Inclined surface; 18. Snap-fit ​​groove; 19. Wear-resistant sleeve; 20. Ring groove. Detailed Implementation

[0028] 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.

[0029] Reference Figures 1 to 6 The present invention provides a four-wheel drive vehicle frame that is easy to install: including a frame 2 and a base plate 1;

[0030] In order to achieve stable guidance of the drive plate 8 and avoid unilateral force deviation, the drive plate 8 is slidably connected to the lower wall of the base plate 1. Two sets of first fixing frames 6 are fixedly connected to the lower wall of the base plate 1 near the front wall. Two sets of second fixing frames 7 are fixedly connected to the lower wall of the base plate 1 near the rear wall. The two sets of first fixing frames 6 are respectively opposite to one set of second fixing frames 7. Slide grooves are provided on the opposite side of the first fixing frames 6 and the second fixing frames 7 near the lower wall of the base plate 1. The drive plate 8 is slidably connected to the inner wall of the slide groove.

[0031] The drive plate 8 moves smoothly in the horizontal direction within the slide groove, avoiding skew caused by force on one side, and effectively solving the problem of locking failure caused by offset.

[0032] To facilitate the insertion of the connecting rod 14, the inner wall of the drive plate 8 is provided with multiple sets of sliding holes 15. The sliding holes 15 are oblong. The frame 2 is fixedly connected to the upper wall of the base plate 1. Multiple sets of connecting rods 14 are fixedly connected to the lower wall of the frame 2. The multiple sets of connecting rods 14 are close to the front, back, left and right sides of the frame 2 and correspond to the positions of the multiple sets of sliding holes 15. The end of the connecting rod 14 away from the frame 2 passes through the inner wall of the base plate 1 and the inner wall of the sliding hole 15 in sequence and extends to the lower side of the drive plate 8. Multiple sets of wear-resistant sleeves 19 are fixedly connected to the inner wall of the base plate 1. The multiple sets of wear-resistant sleeves 19 correspond to the positions of a set of connecting rods 14. The outer wall of the connecting rod 14 is slidably connected to the inner wall of the wear-resistant sleeve 19.

[0033] When frame 2 is pressed down for installation, connecting rod 14 makes room through oblong sliding hole 15, and wear-resistant sleeve 19 reduces frictional resistance and effectively improves assembly speed.

[0034] To achieve multi-point synchronous locking and improve torsional resistance, a wedge 16 for engaging the connecting rod 14 is provided on the lower wall of the drive plate 8 and to the right of the sliding hole 15. A engaging structure is provided between the wedge 16 and the connecting rod 14. The engaging structure includes an annular groove 20 and an engaging groove 18. The annular groove 20 is provided on the outer wall of the connecting rod 14 and at the end of the connecting rod 14 that extends to the lower side of the drive plate 8. The engaging groove 18 is provided at the end of the wedge 16 facing the connecting rod 14. The inner wall size of the engaging groove 18 is adapted to the annular groove 20. An inclined surface 17 is provided on the lower wall of the wedge 16 and on the side close to the connecting rod 14 to facilitate the insertion of the wedge 16 into the annular groove 20. The frame 2 and the base plate 1 are fixed together by the engagement of the engaging groove 18 and the annular groove 20.

[0035] When the drive plate 8 moves to the left, multiple wedges 16 are simultaneously inserted into the annular groove 20 and lock multiple sets of connecting rods 14, which greatly improves the locking efficiency.

[0036] To provide manual drive and simplify the operation process, a second rotating seat 11 and a first rotating seat 3 are fixedly connected to the lower wall of the base plate 1 and near the left and right ends, respectively. A screw 12 is rotatably connected between the first rotating seat 3 and the second rotating seat 11. A connecting seat 13 is threadedly connected to the outer wall of the screw 12 and located between the first rotating seat 3 and the second rotating seat 11. The upper wall of the connecting seat 13 is fixedly connected to the lower wall of the drive plate 8. The right end of the screw 12 passes through the inner wall of the first rotating seat 3 and is fixedly connected to a handwheel 4.

[0037] Rotating the handwheel 4 will drive the drive plate 8 to move through the threaded engagement of the screw 12 and the connecting seat 13, achieving four-way synchronous locking in a single action, which significantly improves assembly efficiency;

[0038] To prevent displacement of the screw 12 due to vibration, a locking screw 5 is threadedly connected to the upper wall of the base plate 1 near the right wall, and the screw 12 is fixed to the base plate 1 by the locking screw 5.

[0039] After locking is completed, tighten the locking screw 5 to abut against the outer wall of the screw 12 to restrict its rotational freedom and prevent changes in the locking state due to vibration.

[0040] In order to reduce the weight of the drive plate 8 and maintain the structural strength, multiple sets of hollow holes 9 for weight reduction are provided on the inner wall of the drive plate 8 and on both the front and rear sides of the connecting seat 13. A flange 10 for improving the structural strength of the drive plate 8 is provided on the lower wall of the drive plate 8 and at the lower opening of the hollow holes 9.

[0041] The hollow hole 9 reduces the weight of the drive plate 8 to meet the lightweight requirements of four-wheel drive vehicles, and the flange 10 enhances the bending strength of the hollow area to prevent the drive plate 8 from deforming when locked.

[0042] Working principle: The drive plate 8 moves smoothly in the horizontal direction within the slide groove, avoiding skew caused by unilateral force and effectively solving the locking failure problem caused by offset; when the frame 2 is pressed down for installation, the connecting rod 14 makes way through the elongated sliding hole 15, and the wear-resistant sleeve 19 reduces frictional resistance, effectively improving the assembly speed; when the drive plate 8 moves to the left, multiple wedges 16 are inserted into the annular groove 20 simultaneously and lock multiple sets of connecting rods 14, greatly improving the locking efficiency; rotating the handwheel 4 can drive the drive plate 8 to move through the threaded engagement of the screw 12 and the connecting seat 13, achieving four-way synchronous locking in a single action, significantly improving assembly efficiency; after locking is completed, tightening the locking screw 5 abuts against the outer wall of the screw 12, restricting its rotational freedom and preventing changes in the locking state due to vibration; the hollow hole 9 reduces the weight of the drive plate 8 to meet the lightweight requirements of four-wheel drive vehicles, and the flange 10 enhances the bending strength of the hollow area, preventing the drive plate 8 from deforming during locking.

[0043] 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 frame for a four-wheel drive vehicle that is easy to install, characterized in that: The system includes a frame (2) and a base plate (1). A drive plate (8) is slidably connected to the lower wall of the base plate (1). The inner wall of the drive plate (8) is provided with multiple sets of sliding holes (15). The sliding holes (15) are oblong. The frame (2) is fixedly connected to the upper wall of the base plate (1). Multiple sets of connecting rods (14) are fixedly connected to the lower wall of the frame (2). The multiple sets of connecting rods (14) are respectively close to the front, back, left, and right sides of the frame (2) and correspond to the positions of the multiple sets of sliding holes (15). The end of the connecting rod (14) away from the frame (2) passes through the inner wall of the base plate (1) and the inner wall of the sliding hole (15) in sequence and extends to the lower side of the drive plate (8). A wedge (16) for engaging the connecting rod (14) is provided on the lower wall of the drive plate (8) and to the right of the sliding hole (15). A engaging structure is provided between the wedge (16) and the connecting rod (14). A second rotating seat (11) and a first rotating seat (3) are fixedly connected to the lower wall of the base plate (1) near the left and right ends, respectively. A screw (12) is rotatably connected between the first rotating seat (3) and the second rotating seat (11). A connecting seat (13) is threadedly connected to the outer wall of the screw (12) between the first rotating seat (3) and the second rotating seat (11). The upper wall of the connecting seat (13) is fixedly connected to the lower wall of the drive plate (8).

2. The easy-to-install four-wheel drive vehicle frame according to claim 1, characterized in that: Two sets of first fixing frames (6) are fixedly connected to the lower wall of the base plate (1) near the front wall. Two sets of second fixing frames (7) are fixedly connected to the lower wall of the base plate (1) near the rear wall. The two sets of first fixing frames (6) are respectively opposite to one set of second fixing frames (7). The first fixing frames (6) and the second fixing frames (7) are provided with sliding grooves on opposite sides near the lower wall of the base plate (1). The drive plate (8) is slidably connected to the inner side wall of the sliding groove.

3. The easy-to-install four-wheel drive vehicle frame according to claim 1, characterized in that: The snap-fit ​​structure includes an annular groove (20) and a snap-fit ​​groove (18). The annular groove (20) is located on the outer wall of the connecting rod (14) and at one end of the connecting rod (14) extending to the lower side of the drive plate (8). The snap-fit ​​groove (18) is located at one end of the wedge (16) facing the connecting rod (14). The inner wall size of the snap-fit ​​groove (18) is adapted to the annular groove (20). The lower wall of the wedge (16) and the side near the connecting rod (14) are provided with an inclined surface (17) for facilitating the insertion of the wedge (16) into the annular groove (20). The frame (2) and the base plate (1) are fixed together by the engagement of the snap-fit ​​groove (18) and the annular groove (20).

4. The easy-to-install four-wheel drive vehicle frame according to claim 1, characterized in that: The inner wall of the base plate (1) is fixedly connected to multiple sets of wear-resistant sleeves (19), and the multiple sets of wear-resistant sleeves (19) correspond to the positions of a set of connecting rods (14). The outer wall of the connecting rod (14) is slidably connected to the inner wall of the wear-resistant sleeve (19).

5. A four-wheel drive vehicle frame that is easy to install according to claim 1, characterized in that: The inner wall of the drive plate (8) and the front and rear sides of the connecting seat (13) are provided with multiple sets of hollow holes (9) for weight reduction. The lower wall of the drive plate (8) and the lower opening of the hollow holes (9) are provided with a flange (10) for improving the structural strength of the drive plate (8).

6. A four-wheel drive vehicle frame that is easy to install according to claim 1, characterized in that: A locking screw (5) is threadedly connected to the upper wall of the base plate (1) near the right wall, and the screw (12) is fixed to the base plate (1) by the locking screw (5).

7. A four-wheel drive vehicle frame that is easy to install according to claim 1, characterized in that: The right end of the screw (12) passes through the inner wall of the first rotating seat (3) and is fixedly connected to a handwheel (4).

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