A highly controllable special heavy-duty vehicle

Abstract

The present invention provides a highly controllable special large-sized vehicle, and relates to the technical field of special vehicles. A highly controllable special large-sized vehicle comprises a lifting mechanism, a tractor head is arranged at the front end of the lifting mechanism, a rear steering mechanism is arranged at the rear end of the lifting mechanism, a locking mechanism is arranged on the left and right sides between the rear steering mechanism and the lifting mechanism, the lifting mechanism comprises a bucket and an end plate, the front and rear ends of the bucket are both provided with end plates, the rear steering mechanism comprises a rear platform, the middle and rear part of the bottom end of the rear platform is rotatably connected to the middle and front part of the top end of the rear vehicle, and a second hydraulic rod is arranged on the left and right sides of the bottom end of the rear platform. By controlling the first hydraulic rod to lift the bucket, the passability of the special large-sized vehicle fully loaded with goods when passing through the overpass is increased, and by controlling the second hydraulic rod to rotate the rear vehicle, the turning radius of the vehicle is reduced in cooperation with the tractor head to assist the vehicle in turning in narrow sections.

Description

Technical Field

[0001] The invention relates to the technical field of special vehicles, in particular to a highly controllable special large vehicle. Background Art

[0002] Special vehicles refer to vehicles whose overall dimensions, weight, etc. exceed the design vehicle limits and vehicles for special purposes. They are specially made or modified, equipped with fixed devices and equipment, and whose main function is not to carry people or goods. Special vehicles generally have special signs or special models. They refer to vehicles that perform special duties and hang special vehicle license plates, and are equipped with sirens and sign lights, such as ambulances, fire trucks, police cars, engineering rescue vehicles, military supervision vehicles, etc.

[0003] Special large vehicles are needed to transport special large goods. However, special large vehicles carrying goods currently have difficulty passing through some overpasses. In addition, since special large vehicles generally have long bodies, it is difficult for them to turn when encountering narrow roads. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies of the prior art, the present invention provides a highly controllable special large-sized vehicle, which solves the problem that a special large-sized vehicle fully loaded with goods has difficulty passing through some overpasses and has difficulty turning on narrow roads.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: A highly controllable special large vehicle, comprising a lifting mechanism, a tractor head is provided at the front end of the lifting mechanism, a rear steering mechanism is provided at the rear end of the lifting mechanism, and locking mechanisms are provided on the left and right sides between the rear steering mechanism and the lifting mechanism;

[0008] The lifting mechanism includes a bucket and an end plate, the front and rear ends of the bucket are both provided with end plates, the middle part of the end plates are both provided with mounting openings, the left and right sides of the mounting openings are both provided with slide grooves, the inside of the mounting openings are both provided with connecting blocks, the connecting blocks are respectively fixedly connected to the upper middle parts of the front and rear ends of the bucket, the two sides of the bottom end of the mounting opening are both fixedly connected to the bottom end of the cylinder body of the first hydraulic rod, and the top end of the rod body of the first hydraulic rod is respectively fixedly connected to the two sides of the bottom end of the connecting block on the same side;

[0009] The rear steering mechanism comprises a rear platform, the rear middle part of the bottom end of the rear platform is rotatably connected to the front middle part of the top end of the rear vehicle, and the left and right sides of the bottom end of the rear platform are both provided with a second hydraulic rod.

[0010] Preferably, the locking mechanism includes a fixed arm and a locking slot, the middle parts of the left and right sides of the front end of the rear vehicle are rotatably connected to the rear end of the fixed arm, the front end of the fixed arm is provided with a through hole, and the middle and lower parts of the left and right sides of the rear end of the rear end plate are fixedly connected with a locking slot, and the locking slot is respectively engaged with the front end of the fixed arm on the same side.

[0011] Preferably, the cylinder ends of the second hydraulic rod are rotatably connected to the middle and upper left and right sides of the rear end of the rear end plate, and the rod body ends of the second hydraulic rod are rotatably connected to the left and right sides of the top end of the rear vehicle tail.

[0012] Preferably, sliders are fixedly connected to the middle parts of the left and right sides of the connecting block, and the sliders are slidably connected to the corresponding sliding grooves respectively.

[0013] Preferably, a hydraulic pump is fixedly connected to the top end of the rear platform, and the first hydraulic rod and the second hydraulic rod are connected to the hydraulic pump via oil pipes respectively.

[0014] Preferably, a traction plate is fixedly connected to the upper front portion of the end plate at the front end, and a front middle portion of the bottom end of the traction plate is rotatably connected to a rear middle portion of the top end of the traction vehicle head.

[0015] Preferably, bolts are transversely arranged in the middle of the locking grooves, and the bolts pass through the corresponding locking grooves and through holes and are threadedly connected with nuts.

[0016] Working principle: When passing the bottom of the overpass, the first hydraulic rod can be retracted by controlling the hydraulic pump. At this time, the connecting block drives the truck bed to descend, so that the truck bed and the goods carried inside are lowered to increase the vehicle's passability. After passing the overpass, the first hydraulic rod is controlled to support the truck bed to increase the distance between the bottom of the truck bed and the ground to prevent the bottom of the truck bed from scratching the ground. When the vehicle needs to turn on a narrow road, the fixed arm is first removed from the lock slot, and then the hydraulic pump is controlled to drive the second hydraulic rod to retract and control the steering mechanism to swing, thereby reducing the turning radius of the vehicle to assist the vehicle in turning.

[0017] (III) Beneficial effects

[0018] The present invention provides a highly controllable special large vehicle, which has the following beneficial effects:

[0019] 1. The present invention controls the hydraulic pump to contract the first hydraulic rod, allowing the connecting block to drive the truck bed to descend, so that the truck bed and the goods carried therein are partially lowered in height, thereby increasing the passability of the vehicle passing through the bottom of the overpass. After passing through the overpass, the first hydraulic rod is controlled to prop up the truck bed, thereby increasing the distance between the bottom of the truck bed and the ground, and preventing the bottom of the truck bed from scratching the ground during the driving of the vehicle.

[0020] 2. The present invention moves the fixed arm away from the locking groove, and then controls the hydraulic pump to drive two second hydraulic rods to telescopically control the rear steering mechanism to rotate, thereby cooperating with the tractor head to reduce the turning radius of the vehicle and assist the vehicle in turning on narrow roads. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 2 This is a disassembled diagram of the lifting mechanism of the present invention;

[0023] Figure 3 This is a schematic diagram of the steering vehicle tail structure of the present invention;

[0024] Figure 4 for Figure 3 Magnified view of point A in .

[0025] Among them, 1. tractor head; 101. traction plate; 2. lifting mechanism; 201. truck bed; 202. end plate; 203. connection block; 204. slider; 205. first hydraulic rod; 206. mounting port; 207. slide groove; 3. rear steering mechanism; 301. rear platform; 302. second hydraulic rod; 303. rear vehicle tail; 4. locking mechanism; 401. fixed arm; 402. through hole; 403. locking groove; 404. bolt; 405. nut; 5. hydraulic pump. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Example:

[0028] like Figure 1-4As shown, an embodiment of the present invention provides a highly controllable special large-sized vehicle, comprising a lifting mechanism 2, a tractor head 1 is arranged at the front end of the lifting mechanism 2, a rear steering mechanism 3 is arranged at the rear end of the lifting mechanism 2, a locking mechanism 4 is arranged on the left and right sides between the rear steering mechanism 3 and the lifting mechanism 2, the lifting mechanism 2 comprises a vehicle bucket 201 and an end plate 202, the front and rear ends of the vehicle bucket 201 are both provided with the end plates 202, the middle part of the end plates 202 are both provided with mounting openings 206, the left and right sides of the mounting openings 206 are both provided with slide grooves 207, the interior of the mounting openings 206 are both provided with connecting blocks 203, and the connecting blocks 203 are respectively fixedly connected to the upper middle parts of the front and rear ends of the vehicle bucket 201, Both sides of the bottom end of the mounting opening 206 are fixedly connected to the bottom end of the cylinder body of the first hydraulic rod 205. The top end of the rod body of the first hydraulic rod 205 is respectively fixedly connected to both sides of the bottom end of the connecting block 203 on the same side. The middle parts of the left and right sides of the connecting block 203 are fixedly connected with sliders 204. The sliders 204 are respectively slidably connected to the corresponding slide grooves 207. The sliders 204 play a role of limiting the position during the lifting and lowering of the bucket 201. At the same time, the slider 204 also plays a role of connecting the bucket 201 during the driving process of the vehicle. The front upper part of the front end plate 202 is fixedly connected to the traction plate 101. The front middle part of the bottom end of the traction plate 101 is rotatably connected to the rear middle part of the top end of the traction head 1.

[0029] When passing the bottom of the overpass, the hydraulic pump 5 is controlled to retract the first hydraulic rod 205, allowing the connecting block 203 to drive the truck bed 201 to descend. At this time, the truck bed 201 and the goods carried therein are partially lowered to increase the vehicle's passability. After passing the overpass, the first hydraulic rod 205 is controlled to prop up the truck bed 201 to increase the distance between the bottom of the truck bed 201 and the ground to prevent the bottom of the truck bed 201 from scratching the ground.

[0030] The rear steering mechanism 3 includes a rear platform 301, and the middle rear part of the bottom end of the rear platform 301 is rotatably connected to the middle front part of the top end of the rear vehicle tail 303. Second hydraulic rods 302 are arranged on the left and right sides of the bottom end of the rear platform 301. The cylinder ends of the second hydraulic rod 302 are respectively rotatably connected to the middle upper parts of the left and right sides of the rear end of the rear side end plate 202, and the rod ends of the second hydraulic rod 302 are respectively rotatably connected to the left and right sides of the top end of the rear vehicle tail 303. A hydraulic pump 5 is fixedly connected to the top end of the rear platform 301, and the first hydraulic rod 205 and the second hydraulic rod 302 are respectively connected to the hydraulic pump 5 through oil pipes.

[0031] When the vehicle needs to turn on a narrow road, the fixed arm 401 is first removed from the locking groove 403, and then the second hydraulic rod 302 is driven to extend and retract by controlling the hydraulic pump 5, and the rear steering mechanism 3 is controlled to rotate, and the tractor head 1 is cooperated to reduce the turning radius of the vehicle to assist the vehicle in turning on a narrow road.

[0032] The locking mechanism 4 includes a fixed arm 401 and a locking slot 403. The middle parts of the left and right sides of the front end of the rear vehicle tail 303 are rotatably connected to the rear end of the fixed arm 401. The front end of the fixed arm 401 is provided with a through hole 402. The middle and lower parts of the left and right sides of the rear end of the rear end plate 202 are fixedly connected with the locking slot 403. The locking slot 403 is respectively engaged with the front end of the fixed arm 401 on the same side. The middle part of the locking slot 403 is transversely provided with a bolt 404. The bolt 404 passes through the corresponding locking slot 403 and the through hole 402 and is threadedly connected with a nut 405.

[0033] The locking mechanism 4 is used to stabilize the rear steering mechanism 3 during normal driving of the vehicle, to prevent the rear steering mechanism 3 from shaking during driving of the vehicle and causing the bucket 201 to drift, thereby ensuring safe driving of the vehicle.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A height-controllable special heavy-duty vehicle, comprising a lifting mechanism (2), characterized in that: A tractor head (1) is provided at the front end of the lifting mechanism (2), a rear steering mechanism (3) is provided at the rear end of the lifting mechanism (2), and locking mechanisms (4) are provided on the left and right sides between the rear steering mechanism (3) and the lifting mechanism (2); The lifting mechanism (2) comprises a bucket (201) and an end plate (202), the front and rear ends of the bucket (201) are both provided with the end plates (202), the middle part of the end plates (202) are both provided with mounting openings (206), the left and right sides of the mounting openings (206) are both provided with sliding grooves (207), the interior of the mounting openings (206) are both provided with connecting blocks (203), the connecting blocks (203) are respectively fixedly connected to the upper middle parts of the front and rear ends of the bucket (201), the two sides of the bottom end of the mounting opening (206) are both fixedly connected to the bottom end of the cylinder body of the first hydraulic rod (205), and the top end of the rod body of the first hydraulic rod (205) is respectively fixedly connected to the two sides of the bottom end of the connecting block (203) on the same side; The rear steering mechanism (3) comprises a rear platform (301), the middle rear portion of the bottom end of the rear platform (301) is rotatably connected to the middle front portion of the top end of the rear vehicle tail (303), and second hydraulic rods (302) are provided on both the left and right sides of the bottom end of the rear platform (301); The locking mechanism (4) comprises a fixed arm (401) and a locking groove (403); the middle parts of the left and right sides of the front end of the rear vehicle tail (303) are both rotatably connected to the rear end of the fixed arm (401); the front end of each fixed arm (401) is provided with a through hole (402); the middle and lower parts of the left and right sides of the rear end of the rear end plate (202) are both fixedly connected with the locking groove (403); the locking groove (403) can respectively engage with the front end of the fixed arm (401) on the same side; The cylinder ends of the second hydraulic rod (302) are rotatably connected to the middle and upper parts of the left and right sides of the rear end of the rear end plate (202), and the rod ends of the second hydraulic rod (302) are rotatably connected to the left and right sides of the top end of the rear vehicle tail (303).

2. A highly controllable special large vehicle according to claim 1, characterized in that: Slide blocks (204) are fixedly connected to the middle parts of the left and right sides of the connection block (203), and the slide blocks (204) are respectively slidably connected to corresponding slide grooves (207).

3. A highly controllable special large vehicle according to claim 1, characterized in that: A hydraulic pump (5) is fixedly connected to the top end of the rear platform (301), and the first hydraulic rod (205) and the second hydraulic rod (302) are respectively connected to the hydraulic pump (5) via oil pipes.

4. A highly controllable special large vehicle according to claim 1, characterized in that: The front upper portion of the front end plate (202) is fixedly connected to a traction plate (101), and the front middle portion of the bottom end of the traction plate (101) is rotatably connected to the rear middle portion of the top end of the traction vehicle head (1).

5. The height-controllable special large vehicle according to claim 1, characterized in that: A bolt (404) is transversely arranged in the middle of each locking slot (403), and each bolt (404) passes through the corresponding locking slot (403) and through hole (402) and is threadedly connected with a nut (405).

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