Multifunctional trailer mechanism of rubber-tyred vehicle

Abstract

The utility model relates to the technical field of mining area vehicle rescue, in particular to a multifunctional trailer mechanism of a rubber-tyred vehicle, which comprises a support arm, an extension arm, a hauling cross beam, an overturning hydraulic cylinder and a rotating arm, when the trailer mechanism is contracted and folded, the overturning hydraulic cylinder is in a contracted state, the pulling rotating arm is in a vertically upward state, the bumping post is driven to be lapped on the top of a carriage of the mining explosion-proof vehicle, and the stability of the trailer mechanism after being contracted and folded is improved; the rotating arm drives the supporting arm to be in a vertically upward state; when the trailer mechanism is unfolded, the overturning hydraulic cylinder extends to push the rotating arm to rotate downwards and drive the bumping post to rotate to a vertical state, and meanwhile, the rotating arm drives the supporting arm to rotate downwards, so that the hauling cross beam is in contact with the ground; and contraction, folding and unfolding of the trailer mechanism are achieved through the arranged overturning hydraulic cylinder, and therefore the fault vehicle can be conveniently hauled.

Description

Technical Field

[0001] This utility model relates to the field of mine vehicle rescue technology, specifically a multi-functional trailer mechanism for rubber-wheeled vehicles. Background Technology

[0002] In mining operations, trackless rubber-tired vehicles are the main transportation tools for underground operations, and their reliability and safety are crucial to the entire mining process. However, due to the complex environment inside the mine, trackless rubber-tired vehicles may occasionally malfunction and need to be towed out of the mine for repairs.

[0003] A search revealed a patent application with application number CN202010284404.3 that discloses a scissor lift trailer. Its scissor fork lifting mechanism ensures smooth lifting and maintaining the balance of the vehicle during lifting, towing, and transportation. The trailer guardrail can also be used to limit and fix the vehicle during transportation, preventing it from tilting or falling off and avoiding secondary collisions that could cause secondary accidents. The transportation process is stable and reliable, the structure is simple and compact, and it is convenient to manufacture, install, use, and operate, with low cost.

[0004] A patent application with application number CN201310022914.3 discloses a trailer mechanism for a fire truck, wherein first and second accident vehicle tire clamping arms each have a first and second tire clamping plate at one end; a pair of lifting cylinders are connected to a first crossbeam. This reduces workload, improves operational efficiency, has good space utilization, is simple in design, and is easy to manufacture and install.

[0005] A patent application with application number CN201910973599.X discloses a trailer mechanism for automobile towing. This invention uses a rod sleeved in a fixed cylinder that can slide together with a buffer piston. Hydraulic oil is provided on both sides of the buffer piston. Through the damping hole, it can achieve the buffering performance in the event of a rear-end collision during automobile towing. The telescopic rod not only has a long buffer stroke, but also has a contact at its end. When towing is carried out, the contact is pulled out of the vehicle bumper so that when two vehicles are towing, the contact can protect the paint safety of the vehicle in the event of a rear-end collision.

[0006] Although the existing towing mechanisms mentioned above are capable of towing vehicles, due to the special and complex environment inside mines, existing underground vehicle breakdown towing mainly uses steel wire ropes and rigid links. This method poses significant safety hazards, such as steel wire rope breakage or rigid link detachment, which may lead to personnel injury and equipment damage. Furthermore, due to the special structure of trackless rubber-wheeled vehicles, the traditional steel wire rope and rigid link towing method cannot be used.

[0007] Therefore, a multi-functional trailer mechanism for rubber-wheeled vehicles is proposed to address the above problems. Utility Model Content

[0008] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0009] The technical solution adopted by this utility model to solve its technical problem is as follows: The multi-functional trailer mechanism of the rubber-tired vehicle of this utility model includes a support arm set at the rear of the mining explosion-proof vehicle, and the support arm can be flipped; an extension arm is slidably installed inside the support arm; an H-shaped fastener is fixedly connected to the end of the extension arm away from the support arm; a towing crossbeam is fixedly connected inside the top groove of the H-shaped fastener; both ends of the towing crossbeam are provided with a mounting unit, and the mounting unit is used to mount a disabled vehicle.

[0010] Preferably, the rear of the mining explosion-proof vehicle is hinged with a swing arm; a stop post is fixedly connected to the top of the swing arm; fixing plates are fixedly connected to both sides of the connection between the swing arm and the stop post; a tilting hydraulic cylinder is hinged between the side of the two fixing plates away from the swing arm and the top surface of the mining explosion-proof vehicle; and the support arm is located on the side of the swing arm away from the mining explosion-proof vehicle.

[0011] Preferably, a blind hole is provided inside the bottom end of the extension arm; an extension hydraulic cylinder is fixedly connected between the top end of the blind hole of the extension arm and the bottom end of the inner cavity of the support arm.

[0012] Preferably, the bottom of the support arm is rotatably connected to the bottom of the rotating arm; a storage groove is provided on the side of the rotating arm near the support arm; an adjusting hydraulic cylinder is hinged to the bottom of the storage groove; the piston rod end of the adjusting hydraulic cylinder is hinged to the support arm; the adjusting hydraulic cylinder can be stored inside the storage groove.

[0013] Preferably, a rubber buffer pad is fixed to the top of the side of the support arm away from the mining explosion-proof vehicle.

[0014] Preferably, the mounting unit includes a mounting seat and a fixed base plate that are slidably mounted on the outer ring of the towing beam; the mounting seat and the fixed base plate cooperate to surround the outer periphery of the towing beam; both sides of the mounting seat and the fixed base plate are locked and fixed by multiple bolts; a hanging lug is bolted to the side of the mounting seat away from the towing beam; and a U-shaped frame is provided on the side of the mounting seat closest to the mining explosion-proof vehicle.

[0015] Preferably, the towing beam has a plurality of positioning through holes evenly distributed on it; the mounting base has a nut groove in the middle of the side near the towing beam; a nut is engaged inside the nut groove; a positioning screw is rotatably mounted in the middle of the fixed base plate; the positioning screw passes through the positioning through hole and is threadedly engaged with the nut.

[0016] Preferably, the top of the mounting base has a rotating hole; a rotating rod is rotatably installed inside the rotating hole; the rotating rod is fixedly connected to the U-shaped frame.

[0017] Preferably, a retaining ring is fitted around the outer edge of the end of the rotating rod away from the U-shaped frame; a convex groove is formed at the end of the rotating rod away from the U-shaped frame; a blocking element is provided inside the groove, and the blocking element can prevent the retaining ring from falling off; the blocking element includes a pair of locking pins; countersunk holes are formed at both ends of the locking pins; a connecting rod is slidably installed inside the countersunk holes at both ends of the two locking pins; a boss matching the countersunk hole is provided at both ends of the connecting rod; and multiple springs are uniformly fixed inside the groove between the two locking pins.

[0018] Preferably, a pair of locking strips are fixedly connected to the middle of the two opposite sides of the locking pins; each pair of locking strips engages with the two sides of the locking groove.

[0019] The advantages of this utility model are:

[0020] 1. The present invention discloses a multi-functional trailer mechanism for rubber-tired vehicles, comprising a support arm, an extension arm, a towing crossbeam, a tilting hydraulic cylinder, and a rotating arm. When the trailer mechanism is retracted and folded, the tilting hydraulic cylinder is in a retracted state, pulling the rotating arm to a vertically upward state, causing the stop post to rest on the top of the mining explosion-proof vehicle's cargo box, thus improving the stability of the trailer mechanism after retraction and folding. The rotating arm drives the support arm to a vertically upward state. When the trailer mechanism is unfolded, the tilting hydraulic cylinder extends and pushes the rotating arm to rotate downward, causing the stop post to rotate to a vertical state. At the same time, the rotating arm drives the support arm to rotate downward, so that the towing crossbeam contacts the ground. The tilting hydraulic cylinder enables the trailer mechanism to retract, fold, and unfold, thereby facilitating the towing of disabled vehicles.

[0021] 2. The multi-functional trailer mechanism for rubber-tired vehicles described in this utility model includes a storage slot and an adjusting hydraulic cylinder. The adjusting hydraulic cylinder connects the support arm and the rotating arm, and the rotational connection between the support arm and the rotating arm enables synchronous rotation between them, allowing the rotating arm to drive the support arm to rotate. By adjusting the hydraulic cylinder to drive the support arm to rotate, the angle of the support arm can be controlled, thereby controlling the angle and height of the towing beam. This allows the vehicle to adapt to complex terrain and improves towing safety. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a perspective view of the trailer mechanism in its folded state according to this utility model;

[0024] Figure 2 This is a perspective view of the trailer mechanism in the deployed state of this utility model;

[0025] Figure 3 This is an exploded view of the trailer mechanism in this utility model;

[0026] Figure 4 This is a perspective view of the towing beam in this utility model;

[0027] Figure 5 This is a perspective view of the mounting unit in this utility model;

[0028] Figure 6 This is an exploded view of the mounting unit in this utility model;

[0029] Figure 7 This is a cross-sectional view of the mounting unit in this utility model;

[0030] Figure 8 This is a perspective view of the transfer rod of this utility model;

[0031] Figure 9 This is an exploded view of the transfer rod of this utility model;

[0032] Figure 10 This is a perspective view of the blocking component in this utility model.

[0033] In the diagram: 1. Support arm; 2. Extension arm; 3. H-shaped fastener; 4. Transport beam; 5. Swing arm; 6. Stop post; 7. Fixing plate; 8. Tilting hydraulic cylinder; 9. Extension hydraulic cylinder; 10. Storage slot; 11. Adjustment hydraulic cylinder; 12. Rubber buffer pad; 13. Mounting seat; 14. Fixed base plate; 15. Hanging lug; 16. U-shaped frame; 17. Positioning through hole; 18. Nut groove; 19. Nut; 20. Positioning screw; 21. Rotating hole; 22. Swing rod; 23. Retaining ring; 24. Slot; 25. Locking pin; 26. Connecting rod; 27. Spring; 28. Locking strip. Detailed Implementation

[0034] 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 scope of protection of the present utility model.

[0035] like Figures 1 to 3 As shown, a multi-functional trailer mechanism for a rubber-tired vehicle includes a support arm 1 located at the rear of a mining explosion-proof vehicle, and the support arm 1 is capable of being flipped; an extension arm 2 is slidably installed inside the support arm 1; an H-shaped fastener 3 is fixedly connected to one end of the extension arm 2 away from the support arm 1; a towing beam 4 is fixedly connected inside the top groove of the H-shaped fastener 3; both ends of the towing beam 4 are provided with mounting units, and the mounting units are used to mount disabled vehicles;

[0036] Due to the special and complex environment inside mines, existing underground vehicle breakdown trailers mainly use steel wire ropes and rigid links. This method has significant safety hazards, such as steel wire rope breakage and rigid link detachment, which may lead to personnel injury and equipment damage. Furthermore, due to the special structure of trackless rubber-wheeled vehicles, the traditional steel wire rope and rigid link trailer method cannot be used. Therefore, this utility model provides a multi-functional trailer mechanism for rubber-wheeled vehicles.

[0037] In this embodiment, the trailer mechanism is installed on the mining explosion-proof vehicle, which facilitates safe and stable movement and transportation in the mine.

[0038] When not towing a faulty vehicle during operation, the trailer mechanism is in a retracted and folded state, that is, the support arm 1 is in a vertically upward state, the extension arm 2 is stored inside the support arm 1, and the support arm 1 drives the towing beam 4 to be located at the top, so that the trailer mechanism does not touch the ground and is located on the top of the mine explosion-proof vehicle, thus facilitating the movement of the mine explosion-proof vehicle in the mine.

[0039] When a disabled vehicle needs to be towed, the mine explosion-proof truck moves to the front of the disabled vehicle, with the rear of the mine explosion-proof truck facing the disabled vehicle, meaning the towing mechanism is close to the front of the disabled vehicle. Then, the support arm 1 is flipped down, so that the towing beam 4 contacts the ground. The extension arm 2 is moved out from the support arm 1, increasing the distance between the towing beam 4 and the mine explosion-proof truck, allowing the towing beam 4 to move to the bottom of the disabled vehicle's front. At the same time, using the steel cable winch on the mine explosion-proof truck, the steel cable is wound around the towing hook of the disabled vehicle. The pull of the winch slowly pulls the disabled vehicle toward the towing beam 4. The mounting unit is used to attach and fix the disabled vehicle to the towing beam 4. The mine explosion-proof truck is then started to tow the disabled vehicle out of the mine. This avoids the safety hazards of steel cable breakage and hard link detachment in traditional towing methods.

[0040] like Figures 1 to 3 As shown, a rotating arm 5 is hinged to the rear of the mining explosion-proof vehicle; a stop post 6 is fixed to the top of the rotating arm 5; fixing plates 7 are fixed to both sides of the connection between the rotating arm 5 and the stop post 6; a tilting hydraulic cylinder 8 is hinged between the side of the two fixing plates 7 away from the rotating arm 5 and the top surface of the mining explosion-proof vehicle; and the support arm 1 is located on the side of the rotating arm 5 away from the mining explosion-proof vehicle.

[0041] When the trailer mechanism is in the retracted and folded state during operation, the tilting hydraulic cylinder 8 is in the retracted state, pulling the rotating arm 5 to a vertically upward state, causing the stop column 6 to rest on the top of the mine explosion-proof vehicle's cargo box, thus improving the stability of the trailer mechanism after retraction and folding; the rotating arm 5 drives the support arm 1 to a vertically upward state; the fixed plate 7 not only facilitates the installation of the tilting hydraulic cylinder 8, but also improves the connection strength between the stop column 6 and the rotating arm 5.

[0042] When the trailer mechanism is deployed, the tilting hydraulic cylinder 8 extends and pushes the rotating arm 5 to rotate downward, causing the stop column 6 to rotate to a vertical position. At the same time, the rotating arm 5 drives the support arm 1 to rotate downward, so that the towing beam 4 contacts the ground.

[0043] After the faulty vehicle is fixed between the towing beam 4 and the load, the tilting hydraulic cylinder 8 retracts, causing the swing arm 5 and the support arm 1 to rotate upward, which in turn causes the towing beam 4 to lift the front of the faulty vehicle.

[0044] The trailer mechanism can be retracted, folded, and unfolded by the set tilting hydraulic cylinder 8, which facilitates the towing of disabled vehicles. In this embodiment, the baffle 6 is a diamond-shaped hollow structure. The baffle 6 not only improves the stability of the trailer mechanism after it is retracted and folded, but also avoids direct collision between the disabled vehicle and the mining explosion-proof vehicle, thus improving the safety of towing.

[0045] like Figures 1 to 3As shown, a blind hole is provided inside the bottom end of the extension arm 2; an extension hydraulic cylinder 9 is fixedly connected between the top end of the blind hole of the extension arm 2 and the bottom end of the inner cavity of the support arm 1; the extension hydraulic cylinder 9 controls the extension arm 2 to slide out of the support arm 1 and retract the support arm 1, thereby realizing the adjustment of the distance between the pulling arm 5 and the mine explosion-proof vehicle, which facilitates the control and adjustment of the distance between the faulty vehicle and the mine explosion-proof vehicle, thereby improving the safety of towing.

[0046] like Figure 3 As shown, the bottom of the support arm 1 is rotatably connected to the bottom of the rotating arm 5; a storage groove 10 is provided on the side of the rotating arm 5 near the support arm 1; an adjusting hydraulic cylinder 11 is hinged to the bottom of the storage groove 10; the piston rod end of the adjusting hydraulic cylinder 11 is hinged to the support arm 1; the adjusting hydraulic cylinder 11 can be stored inside the storage groove 10.

[0047] The support arm 1 and the rotating arm 5 are connected by the adjustable hydraulic cylinder 11. This, combined with the rotational connection between the support arm 1 and the rotating arm 5, allows for synchronous rotation between the rotating arm 5 and the support arm 1, thus enabling the rotating arm 5 to drive the support arm 1 to rotate.

[0048] During operation, when the boom 5 drives the support arm 1 to rotate downwards, and the towing beam 4 needs to contact the ground, the ground in the mine is relatively complex. By adjusting the hydraulic cylinder 11 to push the support arm 1 to rotate, the angle of the support arm 1 is controlled and adjusted, thereby controlling and adjusting the angle and height of the towing beam 4, which can adapt to complex terrain and improve the safety of towing.

[0049] like Figures 1 to 3 As shown, a rubber buffer pad 12 is fixed to the top of the side of the support arm 1 away from the mining explosion-proof vehicle; the rubber buffer pad 12 effectively reduces the impact force between the trailer mechanism and the ground after it is deployed, improves the safety of the trailer mechanism, and reduces damage to the ground.

[0050] like Figures 1 to 5 As shown, the mounting unit includes a mounting seat 13 and a fixed base plate 14 that are slidably mounted on the outer ring of the towing beam 4; the mounting seat 13 and the fixed base plate 14 cooperate to surround the outer periphery of the towing beam 4; both sides of the mounting seat 13 and the fixed base plate 14 are locked and fixed by multiple bolts; a hanging lug 15 is bolted to the side of the mounting seat 13 away from the towing beam 4; a U-shaped frame 16 is provided on the side of the mounting seat 13 closest to the mining explosion-proof vehicle.

[0051] During operation, the distance and position between the two mounting units are controlled and adjusted according to the different types of disabled vehicles, so that the mounting units correspond to the towing positions of the disabled vehicles.

[0052] During adjustment, loosen the bolts between the mounting base 13 and the fixed base plate 14, so that the mounting base 13 and the fixed base plate 14 loosen their clamping and fixing of the towing beam 4, and push the mounting base 13 and the fixed base plate 14 to move and adjust their position along the towing beam 4; after adjustment, tighten the bolts between the mounting base 13 and the fixed base plate 14, so that the mounting base 13 and the fixed base plate 14 clamp and fix the towing beam 4; this facilitates the adjustment of the position of the mounting unit, thereby improving the applicability.

[0053] The hook 15 is suitable for articulated towing structures for disabled vehicles; the U-shaped frame 16 is suitable for integrated towing structures for disabled vehicles, thereby further expanding the scope of application.

[0054] like Figures 4 to 7 As shown, the towing beam 4 is provided with a plurality of positioning through holes 17 evenly distributed; the mounting base 13 is provided with a nut groove 18 in the middle of the side near the towing beam 4; a nut 19 is engaged inside the nut groove 18; a positioning screw 20 is rotatably installed in the middle of the fixed base plate 14; the positioning screw 20 passes through the positioning through hole 17 and is threadedly engaged with the nut 19;

[0055] During operation, after the position of the mounting unit is adjusted, the positioning screw 20 passes through the fixed base plate 14 and the positioning through hole 17 and is locked with the nut 19, thereby further improving the fixing strength of the mounting unit and preventing the mounting unit from shifting along the towing beam 4.

[0056] like Figures 5 to 7 As shown, the top of the mounting base 13 is provided with a rotating hole 21; a rotating rod 22 is rotatably installed inside the rotating hole 21; the rotating rod 22 is fixedly connected to the U-shaped frame 16;

[0057] The rotating rod 22 can rotate inside the rotating hole 21, allowing the U-shaped frame 16 to rotate. This not only facilitates the connection between the integrated towing structure of the disabled vehicle and the U-shaped frame 16, but also makes it easier for the mining explosion-proof vehicle to make turns when towing the disabled vehicle.

[0058] like Figures 5 to 10 As shown, a retaining ring 23 is fitted around the outer edge of the rotating rod 22 away from the U-shaped frame 16; a convex groove 24 is opened at the end of the rotating rod 22 away from the U-shaped frame 16; a blocking element is provided inside the groove 24, and the blocking element can prevent the retaining ring 23 from falling off; the blocking element includes a pair of locking pins 25; countersunk holes are opened at both ends of the locking pins 25; a connecting rod 26 is slidably installed inside the countersunk holes at both ends of the two locking pins 25; a boss matching the countersunk hole is provided at both ends of the connecting rod 26; a plurality of springs 27 are uniformly fixed inside the groove between the two locking pins 25.

[0059] During operation, when installing the U-shaped frame 16, insert the rotating rod 22 into the rotating hole 21, and slip the retaining ring 23 onto the outer ring of the rotating rod 22 from the other end of the rotating hole 21. Press down the two locking pins 25 so that they come closer together, compressing the spring 27. When the two locking pins 25 are close together, they can pass through the opening of the slot 24 and enter the interior. Then release the two locking pins 25, allowing the spring 27 to return to its original position. The spring 27 pushes the two locking pins 25 away from each other along the connecting rod 26. At the same time, the connecting rod 26 limits the maximum distance between the two locking pins 25. The two locking pins 25 respectively clamp and fix the two sides inside the slot 24. The locking pins 25 block the retaining ring 23, thereby installing the rotating rod 22 into the interior of the rotating hole 21.

[0060] When disassembling and replacing the U-shaped bracket 16, press the two locking pins 25 to bring them closer together, which compresses the spring 27. When the two locking pins 25 are close together, they can pass through the opening of the slot 24 and disengage. Then, remove the retaining ring 23 from the outer ring of the rotating rod 22 and pull the rotating rod 22 out of the rotating hole 21, thus completing the disassembly of the U-shaped bracket 16. This facilitates the disassembly and replacement by the staff and allows for quick replacement of the corresponding connecting parts according to different faulty vehicles.

[0061] like Figures 8 to 10 As shown, a pair of locking strips 28 are fixedly connected to the middle of the two opposite sides of the locking pins 25; each pair of locking strips 28 engages with both sides of the locking groove 24; the engagement between the locking strips 28 and the locking groove 24 further improves the firmness of the blocking member inside the locking groove 24 and reduces the possibility of the blocking member falling off.

[0062] Working principle: When installing the U-shaped frame 16, insert the rotating rod 22 into the rotating hole 21, and put the retaining ring 23 onto the outer ring of the rotating rod 22 from the other end of the rotating hole 21. Press the two locking pins 25 so that the two locking pins 25 are close together, which compresses the spring 27. When the two locking pins 25 are close together, they can pass through the opening of the slot 24 and enter the interior. Then release the two locking pins 25 so that the spring 27 returns to its original position. The spring 27 pushes the two locking pins 25 away from each other along the connecting rod 26. At the same time, the connecting rod 26 limits the farthest distance between the two locking pins 25. The two locking pins 25 respectively clamp and fix the two sides inside the slot 24. The locking pins 25 block the retaining ring 23, thereby installing the rotating rod 22 into the interior of the rotating hole 21.

[0063] Depending on the type of vehicle that is disabled, the distance and position between the mounting units on both sides are controlled and adjusted so that the mounting units correspond to the towing position of the disabled vehicle.

[0064] During adjustment, loosen the bolts between the mounting base 13 and the fixed base plate 14, so that the mounting base 13 and the fixed base plate 14 loosen the clamping and fixing of the towing beam 4, and push the mounting base 13 and the fixed base plate 14 to move and adjust the position along the towing beam 4; after the adjustment is completed, tighten the bolts between the mounting base 13 and the fixed base plate 14, so that the mounting base 13 and the fixed base plate 14 clamp and fix the towing beam 4; by passing the positioning screw 20 through the fixed base plate 14 and the positioning through hole 17, and locking it with the nut 19, the fixing strength of the mounting unit is further improved, and the displacement of the mounting unit along the towing beam 4 is prevented;

[0065] When the disabled vehicle is not being towed, the trailer mechanism is in a retracted and folded state. That is, the tilting hydraulic cylinder 8 is in a retracted state, pulling the swing arm 5 to a vertically upward state, causing the stop column 6 to rest on the top of the mine explosion-proof vehicle's cargo box, which improves the stability of the trailer mechanism after retracting and folding. The swing arm 5 drives the support arm 1 to a vertically upward state, and the extension arm 2 is stored inside the support arm 1. The support arm 1 drives the towing beam 4 to be located at the top, so that the trailer mechanism does not touch the ground and is located on the top of the mine explosion-proof vehicle's cargo box, which facilitates the movement of the mine explosion-proof vehicle in the mine.

[0066] When a disabled vehicle needs to be towed, the mining explosion-proof vehicle moves to the front of the disabled vehicle, with the rear of the mining explosion-proof vehicle facing the disabled vehicle, i.e., the towing mechanism is close to the front of the disabled vehicle. At this time, the tilting hydraulic cylinder 8 extends and pushes the rotating arm 5 to rotate downward, causing the stop column 6 to rotate to a vertical position. At the same time, the rotating arm 5 drives the support arm 1 to rotate downward, so that the towing beam 4 contacts the ground. Meanwhile, by adjusting the hydraulic cylinder 11 to push the support arm 1 to rotate, the angle of the support arm 1 is controlled and adjusted, thereby controlling and adjusting the angle and height of the towing beam 4, so as to adapt to complex terrain.

[0067] Using the steel rope winch on the mining explosion-proof vehicle, the steel rope is wound around the towing hook of the disabled vehicle, and the disabled vehicle is slowly pulled towards the towing beam 4 by the pulling force of the winch; the hook 15 is suitable for the articulated towing structure of the disabled vehicle; the U-shaped frame 16 is suitable for the integrated towing structure of the disabled vehicle.

[0068] Once the disabled vehicle is secured to the towing beam 4, the tilting hydraulic cylinder 8 retracts, causing the swing arm 5 and support arm 1 to rotate upwards, which in turn causes the towing beam 4 to lift the front of the disabled vehicle. The mine explosion-proof vehicle is then started to tow the disabled vehicle out of the mine, thus avoiding safety hazards such as broken wire ropes and detached hard links in traditional towing methods.

[0069] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A multi-functional trailer mechanism for rubber-tired vehicles, characterized in that: The device includes a support arm located at the rear of a mining explosion-proof vehicle, and the support arm is capable of being flipped; an extension arm is slidably installed inside the support arm; an H-shaped fastener is fixedly connected to the end of the extension arm away from the support arm; a towing beam is fixedly connected inside the top groove of the H-shaped fastener; both ends of the towing beam are provided with mounting units, and the mounting units are used to mount disabled vehicles.

2. The multi-functional trailer mechanism for a rubber-tired vehicle according to claim 1, characterized in that: The rear of the explosion-proof mining vehicle is hinged with a swing arm; a stop post is fixed to the top of the swing arm; fixing plates are fixed to both sides of the connection between the swing arm and the stop post; a tilting hydraulic cylinder is hinged between the side of the two fixing plates away from the swing arm and the top surface of the mining explosion-proof vehicle; the support arm is located on the side of the swing arm away from the mining explosion-proof vehicle.

3. The multi-functional trailer mechanism for a rubber-tired vehicle according to claim 1, characterized in that: A blind hole is provided inside the bottom end of the extension arm; an extension hydraulic cylinder is fixedly connected between the top end of the blind hole of the extension arm and the bottom end of the inner cavity of the support arm.

4. The multi-functional trailer mechanism for a rubber-tired vehicle according to claim 2, characterized in that: The bottom of the support arm is rotatably connected to the bottom of the rotating arm; a storage groove is provided on the side of the rotating arm near the support arm; an adjusting hydraulic cylinder is hinged to the bottom of the storage groove; the piston rod end of the adjusting hydraulic cylinder is hinged to the support arm; the adjusting hydraulic cylinder can be stored inside the storage groove.

5. The multi-functional trailer mechanism for a rubber-tired vehicle according to claim 1, characterized in that: A rubber buffer pad is fixed to the top of the side of the support arm away from the explosion-proof mining vehicle.

6. The multi-functional trailer mechanism for a rubber-tired vehicle according to claim 1, characterized in that: The mounting unit includes a mounting seat and a fixed base plate that are slidably mounted on the outer ring of the towing beam; the mounting seat and the fixed base plate cooperate to surround the outer periphery of the towing beam; both sides of the mounting seat and the fixed base plate are locked and fixed by multiple bolts; a hanging lug is bolted to the side of the mounting seat away from the towing beam; a U-shaped frame is provided on the side of the mounting seat near the mining explosion-proof vehicle.

7. The multi-functional trailer mechanism for a rubber-tired vehicle according to claim 6, characterized in that: The towing beam has multiple positioning through holes evenly spaced; the mounting base has a nut groove in the middle of the side near the towing beam; a nut is engaged inside the nut groove; a positioning screw is rotatably mounted in the middle of the fixed base plate; the positioning screw passes through the positioning through hole and is threadedly engaged with the nut.

8. A multi-functional trailer mechanism for a rubber-tired vehicle according to claim 6, characterized in that: The top of the mounting base has a rotating hole; a rotating rod is rotatably installed inside the rotating hole; the rotating rod is fixedly connected to the U-shaped frame.

9. A multi-functional trailer mechanism for a rubber-tired vehicle according to claim 8, characterized in that: A retaining ring is fitted around the outer edge of the end of the rotating rod away from the U-shaped frame; a convex-shaped slot is opened at the end of the rotating rod away from the U-shaped frame; a blocking element is provided inside the slot, and the blocking element can prevent the retaining ring from falling off; The blocking component includes a pair of locking pins; countersunk holes are provided at both ends of the locking pins; a connecting rod is slidably installed inside the countersunk holes at both ends of the two locking pins; a boss matching the countersunk hole is provided at both ends of the connecting rod; and multiple springs are uniformly fixed inside the groove between the two locking pins.

10. A multi-functional trailer mechanism for a rubber-tired vehicle according to claim 9, characterized in that: A pair of locking strips are fixedly connected to the middle of the two opposite sides of the locking pins; each pair of locking strips engages with the two sides of the locking groove.

Images