Side protection turnover mechanism for heavy tractor

Abstract

The utility model discloses a side protection turnover mechanism for a heavy-duty tractor, which comprises a fixed support assembly, a rotary support assembly, a turnover connecting piece and a pluggable self-locking fixed pin, the fixed support assembly is of a groove-shaped structure, and rotary shafts are welded at the upper ends and the lower ends of two side walls of the fixed support assembly; the rotating support assembly is of a groove-shaped structure, a rotating groove is formed in the lower end, the bottom is clamped with the rotating shaft through the rotating groove and hinged to the fixed support assembly, and the side face is connected with the side protection through an L-shaped connecting plate. A clamping groove is formed in the back of the overturning connecting piece, and the overturning connecting piece is hooked on the inner side of the upper end of the rotating support assembly through the clamping groove; a mounting hole is formed in the lower part of the turnover connecting piece, and the turnover connecting piece is connected with the rotary bracket assembly through a threaded fastener; a C-shaped opening and an inserting hole are formed in the upper portion of the overturning connecting piece, and the C-shaped opening is matched with a rotating shaft at the upper end of the fixing support assembly; and the pluggable self-locking fixing pin is inserted into an insertion hole above the turnover connecting piece. The turnover / disassembly and assembly operation of the side protection device is simple and convenient, can be completed by a single person with bare hands, and is high in reliability.

Description

Technical Field

[0001] The utility model relates to a side protection turning mechanism for a heavy-duty tractor, belonging to the technical field of heavy-duty automobile parts. Background Art

[0002] The side protection brackets of traditional tractors are difficult to disassemble and assemble, and their assembly is complicated. Some structures do not have a flipping function. When performing chassis maintenance operations such as adding urea and replacing batteries, the side protection must be removed, which is cumbersome. Some side protection brackets with a flipping function are installed with a clearance fit between the fixed side and the rotating side. When the vehicle is moving, the side protection shakes back and forth, generating noise, which reduces the NVH performance of the vehicle. At the same time, its flipping function requires the disassembly and assembly of bolts to be realized. Since vehicle maintenance operations such as adding urea are relatively frequent, frequent disassembly and assembly of bolts poses a risk of damaging the threads, which reduces the reliability of the structure. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a side protection flipping mechanism for a heavy-duty tractor vehicle with high reliability and convenient and quick flipping of the side protection in view of the defects of the prior art.

[0004] In order to solve this technical problem, the utility model provides a side protection flipping mechanism for a heavy-duty tractor, comprising a fixed bracket assembly, a rotating bracket assembly, a flip connecting piece and a pluggable self-locking fixing pin, wherein the fixed bracket assembly is a groove-shaped structure, and a rotating shaft is welded on the upper and lower ends of both side walls; the rotating bracket assembly is a groove-shaped structure, and a rotating groove is provided at the lower end, and the bottom of the rotating bracket assembly is clamped with the rotating shaft through the rotating groove and is hinged with the fixed bracket assembly, and its side is connected with the side protection through an L-shaped connecting plate; a clamping groove is provided at the back of the flip connecting piece, and is hooked on the inner side of the upper end of the rotating bracket assembly through the clamping groove; a mounting hole is provided at the bottom of the flip connecting piece, and is connected to the rotating bracket assembly through a threaded fastener; a C-shaped mouth and a plug-in hole are provided above the flip connecting piece, and the C-shaped mouth cooperates with the rotating shaft at the upper end of the fixed bracket assembly; the pluggable self-locking fixing pin is inserted into the plug-in hole above the flip connecting piece.

[0005] The fixed bracket assembly is a groove-shaped structure formed by bending a steel plate, and its side wall is a non-equal height structure. The bottom of the fixed bracket assembly is provided with a mounting hole and a side marker light harness fixing hole; a rubber plug bracket is welded to the bottom end of the back of the fixed bracket assembly for installing a rubber plug. The installed rubber plug rests on the fender to suppress the front and rear shaking of the fender during driving.

[0006] The rotating bracket assembly is formed by bending steel plates, and its side walls are provided with a flange structure. The upper end flange is a structure that is first bent inward and then flanged outward, with a wide outside and a narrow inside. The inner width of the upper end flange is equal to the outer width of the fixed bracket assembly. After buckling, the fixed bracket assembly and the rotating bracket assembly are in close contact, which can limit the movement of the flipping mechanism in the front and rear directions of the vehicle; side protection mounting holes are symmetrically provided on both side walls of the rotating bracket assembly, and reinforcing sleeves are welded coaxially with the mounting holes inside the two side walls.

[0007] The upper, middle and lower parts of both side walls of the rotating bracket assembly are symmetrically provided with side marker light harness fixing holes.

[0008] A transitional small arc section higher than the lowest point of the arc section is designed at the intersection of the lower section of the C-shaped opening on the upper part of the flip connector and the arc section; the C-shaped opening is clearance-matched with the rotating shaft at the upper end of the fixed bracket assembly.

[0009] The flip connector is formed by extrusion of aluminum profiles.

[0010] The pluggable self-locking fixing pin includes a fixing pin and a pull ring. The left and right sides of the fixing pin head are provided with eccentric mounting holes for the pull ring, and the pull ring is a structure with unequal heights on the left and right sides. The pluggable self-locking fixing pin is inserted into the insertion hole above the flip connector, and relies on its own eccentric locking characteristics to lock the fixed bracket assembly and the rotating bracket assembly.

[0011] The pull ring in the self-locking fixing pin of the pluggable belt is a spatial structure with unequal surfaces at the left and right ends, thereby enhancing the self-locking force of the self-locking fixing pin of the pluggable belt.

[0012] When the rotating bracket assembly is turned outward by 35°, it can be limited by its own lower end side wall and the fixed bracket assembly.

[0013] Beneficial effects: The side protection flipping / disassembly operation of the utility model is simple and convenient, does not require the use of tools, can be completed by one person barehanded, and has high reliability; the installation gap between the fixed side and the rotating side of the flip bracket is eliminated, which is beneficial to improving the NVH performance of the entire vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the flipping of the utility model;

[0016] Figure 3 The utility model is a schematic diagram of the assembly of the flip connector and the pluggable self-locking fixing pin.

[0017] In the figure: 1. Fixed bracket assembly; 2. Rotating bracket assembly; 3. Flip connector; 4. Pluggable self-locking fixing pin; 5. Rotating shaft; 6. L-shaped connecting plate; 7. Side protection; 8. Rotating groove; 9. Reinforced sleeve; 10. Upper end flange; 11. Small arc segment; 12. Fixing pin; 13. Pull ring; 14. Side protection connecting bracket; 15. Rubber plug bracket; 16. Rubber plug; 17. Fender. DETAILED DESCRIPTION

[0018] The utility model is described in detail below in conjunction with the accompanying drawings and embodiments.

[0019] like Figure 1-Figure 3 As shown, the utility model provides a side protection flipping mechanism for a heavy-duty tractor, comprising a fixed bracket assembly 1, a rotating bracket assembly 2, a flip connector 3 and a pluggable self-locking fixing pin 4, wherein the fixed bracket assembly 1 is a groove-shaped structure, and a rotating shaft 5 is welded to the upper and lower ends of both side walls; the rotating bracket assembly 2 is a groove-shaped structure, and a rotating groove 8 is provided at the lower end, and the bottom of the rotating bracket assembly 2 is clamped with the rotating shaft 5 through the rotating groove 8 and is hinged with the fixed bracket assembly 1, and its side is connected with the side protection 7 through an L-shaped connecting plate 6; a clamping groove is provided at the back of the flip connector 3, and is hooked on the inner side of the upper end of the rotating bracket assembly 2 through the clamping groove; a mounting hole is provided below the flip connector 3, and is connected to the rotating bracket assembly 2 through a threaded fastener; a C-shaped opening and a plug-in hole are provided above the flip connector 3, and its C-shaped opening cooperates with the rotating shaft 5 at the upper end of the fixed bracket assembly 1; the pluggable self-locking fixing pin 4 is inserted into the plug-in hole above the flip connector 3.

[0020] The fixing bracket assembly 1 is a groove-shaped structure formed by bending a steel plate, and its side wall is a non-equal height structure. A mounting hole and a side marker light harness fixing hole are provided at the bottom of the fixing bracket assembly 1; a rubber plug bracket 15 is welded to the bottom end of the back of the fixing bracket assembly 1 for installing a rubber plug 16. The installed rubber plug 16 rests on the fender 17 to suppress the front and rear shaking of the fender during driving.

[0021] The rotating bracket assembly 2 is a groove-shaped structure formed by bending a steel plate, and its side wall is provided with a flange structure. The upper end flange 10 is a structure that is first bent inward and then flanged outward, and is wide on the outside and narrow on the inside. The inner width of the upper end flange 10 is equal to the outer width of the fixed bracket assembly 1. After buckling, the fixed bracket assembly 1 and the rotating bracket assembly 2 are in close contact, which can limit the movement of the flipping mechanism in the front and rear directions of the vehicle; the two side walls of the rotating bracket assembly 2 are symmetrically provided with side protection mounting holes, and the inside of the two side walls is coaxially welded with a reinforcing sleeve 9 with the mounting holes.

[0022] The upper, middle and lower parts of both side walls of the rotating bracket assembly 2 are symmetrically provided with side marker light harness fixing holes.

[0023] A transitional small arc section 11 higher than the lowest point of the arc section is designed at the intersection of the lower section of the upper C-shaped opening of the flip connector 3 and the arc section; the C-shaped opening is clearance-matched with the rotating shaft 5 at the upper end of the fixed bracket assembly 1 .

[0024] The flip connector 3 is formed by extrusion of aluminum profile.

[0025] The pluggable self-locking fixing pin 4 is made of highly wear-resistant stainless steel material, including a fixing pin 12 and a pull ring 13. The left and right sides of the head of the fixing pin 12 are provided with eccentric mounting holes for the pull ring 13, and the pull ring 13 is a structure of unequal height on the left and right sides; the pluggable self-locking fixing pin 4 is inserted into the insertion hole above the flip connector 3, and relies on its own eccentric locking characteristics to lock the fixed bracket assembly 1 and the rotating bracket assembly 2.

[0026] The pull ring 13 in the self-locking fixing pin 4 of the pluggable belt is a spatial structure with unequal surfaces at the left and right ends, which enhances the self-locking force of the self-locking fixing pin of the pluggable belt.

[0027] When the rotating bracket assembly 2 is turned outward by 35°, it can be limited by its own lower end side wall and the fixed bracket assembly 1.

[0028] The use process of the utility model is as follows:

[0029] When installing the side anti-rollover mechanism, first use the bolts and the mounting holes of the fixed bracket assembly 1 to fasten the fixed bracket assembly 1 to the side protection connecting bracket 14; then hook the flip connector 3 on the inner side of the upper end of the rotating bracket assembly 2 and fasten it with bolts; then use the side protection mounting holes on the side wall of the rotating bracket assembly 2 and the L-shaped connecting plate 6 to fix the rotating bracket assembly 2 on the side protection 7; assemble the side protection as a whole: fit the rotating groove 8 at the lower end of the rotating bracket assembly 2 to the rotating shaft 5 at the lower end of the fixed bracket assembly 1, and snap the upper end of the rotating bracket assembly 2 with the upper end of the fixed bracket assembly 1, where it is necessary to snap the C-shaped arc section of the flip connector 3 to fit the rotating shaft 5 at the upper end of the fixed bracket assembly 1; finally, insert the pluggable self-locking fixing pin 4 into the plug-in hole at the top of the flip connector 3, and rotate the pull ring 13 downward to a position beyond its dead point or in contact with the fixing pin 12, so as to prevent the side protection 7 from flipping over.

[0030] When the side guard 7 needs to be flipped or disassembled, the pull ring 13 is bent upward to unlock it, and the pluggable self-locking fixing pin 4 is pulled out to flip the side guard 7; or the side guard 7 is rotated around the rotating shaft 5 at the lower end of the fixed bracket assembly 1, and the side guard 7 is lifted out to realize the disassembly of the side guard 7.

[0031] The utility model has strong versatility and simplifies the side protection installation and removal process; eliminates the installation gap between the fixed bracket and the rotating bracket, improves the NVH performance of the whole vehicle; and realizes chassis maintenance operations such as urea filling and battery replacement without disassembling the side protection.

[0032] The above embodiments of the present invention are merely illustrative and not exclusive, and all modifications within the scope of the present invention or equivalent to the scope of the present invention are encompassed by the present invention.

Claims

1. A side protection rollover mechanism for a heavy-duty tractor, characterized in that: The invention comprises a fixed bracket assembly (1), a rotating bracket assembly (2), a flip connector (3) and a pluggable self-locking fixing pin (4); the fixed bracket assembly (1) is a groove-shaped structure, and a rotating shaft (5) is welded on the upper and lower ends of both side walls; the rotating bracket assembly (2) is a groove-shaped structure, and a rotating groove (8) is provided at the lower end; the bottom of the rotating bracket assembly (2) is clamped with the rotating shaft (5) through the rotating groove (8) and is hinged with the fixed bracket assembly (1); and its side is connected to the rotating shaft (5) through an L-shaped connecting plate (6). The flip connector (3) is connected to the side guard (7); a slot is provided on the back of the flip connector (3) and is hooked on the inner side of the upper end of the rotating bracket assembly (2) through the slot; a mounting hole is provided below the flip connector (3) and is connected to the rotating bracket assembly (2) through a threaded fastener; a C-shaped opening and a plug-in hole are provided above the flip connector (3), and the C-shaped opening cooperates with the rotating shaft (5) at the upper end of the fixed bracket assembly (1); the pluggable self-locking fixing pin (4) is inserted into the plug-in hole above the flip connector (3).

2. The side protection rollover mechanism for heavy-duty tractor according to claim 1 is characterized in that: The fixing bracket assembly (1) is a groove-shaped structure formed by bending a steel plate, and its side wall is a non-uniform height structure. The bottom of the fixing bracket assembly (1) is provided with a mounting hole and a side marker light harness mounting hole. A rubber plug bracket (15) is welded to the bottom end of the back of the fixing bracket assembly (1) for mounting a rubber plug (16). The installed rubber plug (16) abuts against the fender (17) to suppress the fender from shaking forward and backward during driving.

3. The side protection rollover mechanism for heavy-duty tractor according to claim 1 is characterized in that: The rotating bracket assembly (2) is formed by bending a steel plate, and its side wall is provided with a flange structure. The upper end flange (10) is a structure that is first bent inward and then flanged outward, and is wide outside and narrow inside. The inner width of the upper end flange (10) is equal to the outer width of the fixed bracket assembly (1). After being buckled, the fixed bracket assembly (1) and the rotating bracket assembly (2) are in close contact, which can limit the movement of the flip mechanism in the front and rear directions of the vehicle; the two side walls of the rotating bracket assembly (2) are symmetrically provided with side protection mounting holes, and the inside of the two side walls is coaxially welded with a reinforcing sleeve (9) with the mounting hole.

4. The side protection rollover mechanism for heavy-duty tractor according to claim 3 is characterized in that: Side marker light harness fixing holes are symmetrically arranged at the upper, middle and lower parts of both side walls of the rotating bracket assembly (2).

5. The side protection rollover mechanism for heavy-duty tractor according to claim 1 is characterized in that: A transitional small arc segment (11) higher than the lowest point of the arc segment is designed at the intersection of the lower section of the upper C-shaped opening of the flip connector (3) and the arc segment; the C-shaped opening is clearance-matched with the rotating shaft (5) at the upper end of the fixed bracket assembly (1).

6. The side protection rollover mechanism for heavy-duty tractor according to claim 1 is characterized in that: The flip connector (3) is formed by extrusion of an aluminum profile.

7. The side protection rollover mechanism for heavy-duty tractor according to claim 1 is characterized in that: The pluggable self-locking fixing pin (4) comprises a fixing pin (12) and a pull ring (13), and eccentric mounting holes for the pull ring (13) are provided on the left and right sides of the head of the fixing pin (12), and the pull ring (13) is a structure with unequal heights on the left and right sides; the pluggable self-locking fixing pin (4) is plugged into the plug-in hole above the flip connector (3), and relies on its own eccentric locking characteristics to lock the fixed bracket assembly (1) and the rotating bracket assembly (2).

8. The side protection rollover mechanism for heavy-duty tractor according to claim 7 is characterized in that: The pull ring (13) in the pluggable belt self-locking fixing pin (4) is a spatial structure with unequal surfaces at the left and right ends, thereby enhancing the self-locking force of the pluggable belt self-locking fixing pin.

9. The side protection rollover mechanism for a heavy-duty tractor according to any one of claims 1 to 8, characterized in that: When the rotating bracket assembly (2) is turned outward by 35°, it can form a limit position with the fixed bracket assembly (1) through its own lower end side wall.

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