Dumper side protective fence with adjusting function

Abstract

The utility model relates to the technical field of dumper side protective fences, in particular to a dumper side protective fence with an adjusting function, which comprises an upper protective fence main body and a first connecting arm, a second connecting arm capable of sliding up and down is arranged in the first connecting arm, and an anti-collision beam is arranged at the bottom end of the second connecting arm. A lower protective fence body is arranged on the front end face of the anti-collision beam and located below the upper protective fence body, vertically-upward side plates are arranged on the upper surface of the anti-collision beam and located on the two sides of the second connecting arm, a top locking assembly for clamping and fixing the side plates is arranged on the first connecting arm, and a top locking assembly for clamping and fixing the side plates is arranged on the side portion of the first connecting arm. The side plate side wall locking device is good in structural stability and large in protection area, a motor vehicle is not prone to deformation in the side face collision process, the motor vehicle is effectively intercepted, and the motor vehicle is prevented from being rolled into the bottom of the vehicle from the side face.

Description

Technical Field

[0001] This utility model belongs to the field of side guardrail technology, specifically a side guardrail for dump trucks with adjustable function. Background Technology

[0002] Dump trucks are vehicles that unload goods themselves using hydraulic or mechanical lifting. They are large vehicles with high chassis. To prevent motor vehicles and non-motor vehicles from being pulled under the truck from the side in a collision, side guardrails are installed. However, the existing side guardrails are fixed to the side of the dump truck, and their protective height is fixed and cannot be adjusted. For better anti-roll-in effect, the side guardrails need to be closer to the ground. But when driving on some complex road surfaces, it will lead to poor passability. Therefore, designing a side guardrail with adjustable ground distance that can improve the anti-roll-in effect without affecting the vehicle's passability is one of the urgent problems to be solved. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a side guardrail for dump trucks with adjustable function to address the above-mentioned defects and solve the problems mentioned in the background art.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: a side guardrail for a dump truck with adjustable function includes an upper guardrail body, a first connecting arm symmetrically arranged on the rear end face of the upper guardrail body in a vertically upward state, a second connecting arm slidably arranged inside the first connecting arm, the second connecting arm extending to the bottom end of the first connecting arm, a crash beam provided at the bottom end of the second connecting arm, a lower guardrail body provided on the front end face of the crash beam, the lower guardrail body located below the upper guardrail body, side plates vertically upward arranged on both sides of the upper surface of the crash beam, a top locking assembly for clamping and fixing the side plates provided on the first connecting arm, a plurality of connecting holes evenly spaced below the top locking assembly on the side of the first connecting arm, and a fixing assembly for locking with the connecting holes provided at the top of the side wall of the side plate.

[0005] Furthermore, the top locking assembly includes a mounting plate, a slide groove, a slider, a spring, a clamping rod, and a clamping block. The mounting plate is disposed on the side wall of the first connecting arm. The slide groove is symmetrically opened at the bottom end of the mounting plate. The slider is slidably disposed inside the slide groove. The spring is disposed between the slider and the side wall of the slide groove. One end of the clamping rod passes through the mounting plate and is fixedly connected to the bottom end of the slider. The clamping block is disposed at the bottom end of the clamping rod near the side plate. The two ends of the side plate are provided with slots that match the clamping blocks.

[0006] Furthermore, the bottom end of the clamping block inside the slot is provided with a first driving slope, and the two ends of the upper surface of the side plate are provided with a second driving slope that matches the first driving slope.

[0007] Furthermore, the fixing component includes an annular slide rail disposed on the side plate, a knob disposed on the annular slide rail, and a connecting screw disposed inside the annular slide rail. One end of the screw passes through the annular slide rail, the side plate, and is threadedly connected to the connecting hole, while the other end passes through the annular slide rail, the knob, and is threadedly connected to the knob.

[0008] Furthermore, a horizontally arranged mounting bracket is provided at the top of the rear end face of the first connecting arm, the mounting bracket being perpendicular to the first connecting arm, and a reinforcing component being provided between the first connecting arm and the mounting bracket.

[0009] Furthermore, the reinforcing component includes a first connecting part, a second connecting part, and an inclined rod. The first connecting part and the second connecting part are disposed at both ends of the inclined rod. The first connecting part is fixedly connected to the rear end face of the first connecting arm, and the second connecting part is fixedly connected to the bottom end of the mounting frame. The inclined rod, the first connecting arm, and the mounting frame form a triangular stable structure.

[0010] The beneficial effects of this utility model are:

[0011] This utility model utilizes a combination of a second connecting arm, a crash beam, a lower guardrail body, a side plate, a top locking assembly, connecting holes, and a fixing assembly. When driving on a smooth, paved road, the top locking assembly releases the side plate, allowing the lower guardrail body and crash beam to move downwards along the first connecting arm to the desired height via the second connecting arm. The fixing assembly then locks the side plate to the corresponding connecting hole on the first connecting arm, bringing the lower guardrail body closer to the ground. The lower guardrail body, the second connecting arm, and the upper guardrail body work together to increase the side impact protection area, effectively preventing non-motorized vehicles and motorized vehicles from being dragged under the vehicle in a side collision. On complex road surfaces, the fixing assembly separates from the connecting hole, pushing the lower guardrail body upwards. The second connecting arm slides inside the first connecting arm, bringing the side plate closer to and clamping it with the top locking assembly. The fixing assembly then locks to the connecting hole at its current position, fixing the lower guardrail body at its current height, increasing its ground clearance and improving its passability. Attached Figure Description

[0012] The foregoing and other objects, features and advantages of this invention will become apparent from the following detailed description taken in conjunction with the accompanying drawings.

[0013] Figure 1 This is a front view of the present utility model.

[0014] Figure 2This is a side view of the first connecting arm and the second connecting arm of this utility model.

[0015] Figure 3 for Figure 2 An enlarged schematic diagram of the structure at point A.

[0016] Figure 4 This is a cross-sectional view of the fixing component of this utility model.

[0017] Figure 5 This is a side view of the first connecting arm and mounting bracket of this utility model.

[0018] The components include: 1. Upper guardrail body; 2. First connecting arm; 3. Second connecting arm; 4. Anti-collision beam; 5. Lower guardrail body; 6. Side plate; 601. Slot; 602. Second driving ramp; 7. Top locking assembly; 701. Mounting plate; 702. Slide groove; 703. Slider; 704. Spring; 705. Clamping rod; 706. Clamping block; 707. First driving ramp; 8. Connecting hole; 9. Fixing assembly; 901. Circular slide rail; 902. Knob; 903. Screw; 10. Mounting bracket; 11. First connecting part; 12. Second connecting part; 13. Inclined rod. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] Reference Figure 1-5 As shown, the adjustable side guardrail for dump trucks includes an upper guardrail body 1 and a first connecting arm 2 symmetrically arranged on the rear end face of the upper guardrail body 1 in a vertically upward state. The upper guardrail body 1 is composed of an upper crossbeam, a lower crossbeam, and vertical beams arranged on both sides of the upper and lower crossbeams to form a rectangular structure. The vertical beams have arc-shaped sides on both sides. A vertical reinforcing beam is provided between the upper and lower crossbeams to increase its structural stability and impact resistance, making it less likely for the vehicle to deform in a side impact, effectively intercepting the vehicle and preventing it from being rolled under the vehicle from the side.

[0021] A second connecting arm 3 is slidably mounted inside the first connecting arm 2, extending to the bottom of the first connecting arm 2. The outer surface of the second connecting arm 2 is slidably connected to the inner wall of the first connecting arm 2. A crash beam 4 is mounted at the bottom of the second connecting arm 3, and a lower guardrail body 5 is mounted on the front end of the crash beam 4. The crash beam 4 increases the structural strength of the lower guardrail body 5, making it less prone to deformation and damage under external impact, thus improving its anti-entrapment performance. By moving the second connecting arm 3 up and down, the ground clearance of the lower guardrail body 5 is adjusted, increasing the protective area. In side collisions with motor vehicles and non-motor vehicles, it can contact the lower bumper of the vehicle for buffering, preventing direct impact on the A-pillar due to the high ground clearance, and improving the anti-entrapment performance for non-motor vehicles. When encountering complex road surfaces, the lower guardrail body 5 can be moved upward to increase the ground clearance and improve passability.

[0022] The lower guardrail body 5 is located below the upper guardrail body 1 to increase the overall protection area of ​​the side and improve the anti-roll-in performance. On the upper surface of the anti-collision beam 4, on both sides of the second connecting arm 3, there are vertically upward side plates 6. The first connecting arm 2 is provided with a top locking component 7 that clamps and fixes the side plates 6. When the lower guardrail body 5 moves upward to the highest point, the top locking component 7 clamps and fixes the side plates 6, so that the lower guardrail body 5 first completes the locking to facilitate the operation of the fixing component, and then forms a lock with the connecting hole 8, making its fixation more firm and stable.

[0023] The top locking assembly 7 includes a mounting plate 701, a slide groove 702, a slider 703, a spring 704, a clamping rod 705, and a clamping block 706. The mounting plate 701 is mounted on the side wall of the first connecting arm 2. The slide groove 702 is symmetrically located at the bottom of the mounting plate 701. The slider 703 is slidably disposed inside the slide groove 702. The spring 704 is disposed between the slider 703 and the side wall of the slide groove 702. One end of the clamping rod 705 passes through the mounting plate 701 and is fixedly connected to the bottom of the slider 703. The clamping block 706 is located at the bottom of the clamping rod 705 near the side plate 6. The side plate 6 has slots 601 at both ends that match the clamping blocks 706. The bottom of the mounting plate 701 has a through groove communicating with the slide groove 702. One end of the clamping rod 705 passes through the through groove and is fixedly connected to the slider 703. The inner diameter of the through groove is smaller than that of the slide groove 702, allowing the slider 703 to reciprocate stably within the slide groove 702. The bottom end of the clamping block 706 inside 601 is provided with a first driving inclined surface 707, and the two ends of the upper surface of the side plate 6 are provided with second driving inclined surfaces 602 that match the first driving inclined surface 707. When the lower guardrail body 5 moves upward, the side plate 6 moves upward together. The second driving inclined surface 602 abuts against the first driving inclined surface 707, driving the clamping block 706, clamping rod 705, and slider 703 to move along the slide groove 702 to the end away from the side plate 6. The spring 704 is compressed, causing it to undergo elastic deformation. The clamping block 706 is continuously limited by the side wall of the side plate 6 until the slot 601 corresponds to the clamping block 706. The force limiting the clamping block 706 disappears, the spring 704 returns to its original position, and the clamping block 706 is driven into the slot 601. The side wall of the clamping rod 705 abuts against the side wall of the side plate 6, and the spring 704 always applies a clamping force to clamp and fix the side plate 6.

[0024] On the side of the first connecting arm 2, below the top locking assembly 7, there are multiple connecting holes 8 evenly spaced. The top of the side wall of the side plate 6 is provided with a fixing assembly 9 that locks with the connecting holes 8. The fixing assembly 9 further increases the firmness of the fixing between the side plate 6 and the first connecting arm 2. The fixing assembly 9 is fixedly connected to the connecting holes 8 at different heights according to the requirements. The fixing assembly 9 includes an annular slide rail 901 set on the side plate 6, a knob 902 set on the annular slide rail 901, and a connecting screw 903 set inside the annular slide rail 901. One end of the screw 903 passes through the annular slide rail 901, the side plate 6 and the connecting hole 8 and is threadedly connected. The other end passes through the annular slide rail 901 and the knob 902 and is threadedly connected to the knob 902. The knob 902 has an annular groove that matches the annular slide rail 901. By rotating the knob 902, the screw 903 is driven to move horizontally, pass through the side plate 6 and be threadedly connected to the connecting hole 8, so that the side plate 6 is further fixedly connected to the first connecting arm 2.

[0025] A horizontally arranged mounting bracket 10 is provided at the top of the rear end face of the first connecting arm 2. The mounting bracket 10 is perpendicular to the first connecting arm 2. A reinforcing component is provided between the first connecting arm 2 and the mounting bracket 10. The reinforcing component includes a first connecting part 11, a second connecting part 12, and an inclined rod 13. The first connecting part 11 and the second connecting part 12 are located at both ends of the inclined rod 13. The first connecting part 11 is fixedly connected to the rear end face of the first connecting arm 2, and the second connecting part 12 is fixedly connected to the bottom end of the mounting bracket 10. The inclined rod 13, the first connecting arm 2, and the mounting bracket 10 form a triangular stable structure. The triangular stable structure makes it difficult for the first connecting arm 2 to bend backward under external impact, so as to effectively intercept and resist side collisions and improve its anti-entrapment effect.

[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A side protection fence with adjusting function for a self-unloading vehicle, comprising an upper fence body (1), a first connecting arm (2) symmetrically arranged on the rear end face of the upper fence body (1) and in a vertical upward state, characterized in that: The second connecting arm (3) is arranged inside the first connecting arm (2) and extends to the bottom end of the first connecting arm (2), the bottom end of the second connecting arm (3) is provided with a collision beam (4), the front end surface of the collision beam (4) is provided with a lower guardrail body (5), the lower guardrail body (5) is below the upper guardrail body (1), the upper surface of the collision beam (4) is provided with a vertical upward side plate (6) on both sides of the second connecting arm (3), the first connecting arm (2) is provided with a top locking assembly (7) for clamping and fixing the side plate (6), a plurality of connecting holes (8) are uniformly arranged on the side of the first connecting arm (2) below the top locking assembly (7), and the top end of the side wall of the side plate (6) is provided with a fixing assembly (9) for locking with the connecting hole (8).

2. The side protective fence of the self-unloading vehicle with the adjusting function according to claim 1, characterized in that: The top locking assembly (7) comprises a mounting plate (701), a sliding groove (702), a sliding block (703), a spring (704), a clamping rod (705) and a clamping block (706), the mounting plate (701) is arranged on the side wall of the first connecting arm (2), the sliding groove (702) is symmetrically formed at the bottom end of the mounting plate (701), the sliding block (703) is slidably arranged in the sliding groove (702), the spring (704) is arranged between the sliding block (703) and the side wall of the sliding groove (702), one end of the clamping rod (705) penetrates through the mounting plate (701) and is fixedly connected with the bottom end of the sliding block (703), and the clamping block (706) is arranged at the bottom end of one end of the clamping rod (705) close to the side plate (6). The two ends of the side plate (6) are provided with clamping grooves (601) matched with the clamping block (706).

3. The side protective fence of the self-unloading vehicle with the adjusting function according to claim 2, characterized in that: The bottom end of the clamping block (706) in the clamping groove (601) is provided with a first driving slope (707), and the upper surface of the side plate (6) is provided with a second driving slope (602) matched with the first driving slope (707).

4. The side protective fence of the self-unloading vehicle with the adjusting function according to claim 2, characterized in that: The fixing assembly (9) comprises an annular sliding rail (901) arranged on the side plate (6), a knob (902) rotatably arranged on the annular sliding rail (901), and a connecting screw rod (903) arranged in the annular sliding rail (901), one end of the screw rod (903) penetrates through the annular sliding rail (901), the side plate (6) and the connecting hole (8) and is threadedly connected, and the other end penetrates through the annular sliding rail (901) and the knob (902) and is threadedly connected with the knob (902).

5. The side protective fence of the self-unloading vehicle with the adjusting function according to claim 1, characterized in that: The top end of the rear end surface of the first connecting arm (2) is provided with a horizontally arranged mounting bracket (10), the mounting bracket (10) is perpendicular to the first connecting arm (2), and a reinforcing assembly is arranged between the first connecting arm (2) and the mounting bracket (10).

6. The side protective fence of the self-unloading vehicle with the adjusting function according to claim 5, characterized in that: The reinforcing assembly comprises a first connecting part (11), a second connecting part (12) and an inclined rod (13), the first connecting part (11) and the second connecting part (12) are arranged at two ends of the inclined rod (13), the first connecting part (11) is fixedly connected with the rear end face of the first connecting arm (2), the second connecting part (12) is fixedly connected with the bottom end of the mounting rack (10), and the inclined rod (13), the first connecting arm (2) and the mounting rack (10) form a triangular stable structure.

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