A drag cart for underwater towing

Abstract

The present invention provides a drag car for underwater towing, which comprises a drag car body. The drag car body includes a bearing mechanism, a power system and a braking system. A first support mechanism and a second support mechanism are respectively fixed on the bearing mechanism. Connecting lugs are fixed on the first support mechanism and the second support mechanism. A tension mechanism is fixed on the connecting lugs. A fixing mechanism is fixed at one end of the tension mechanism. Lightning protection brackets are fixed on the tops of the first support mechanism and the second support mechanism. Fixing rings are fixed on the lightning protection brackets. When the drag car for underwater towing is in use, the support mechanism has strong tensile and wind resistance capabilities. Reinforcing plates, diagonal stay horse buckles and other components are welded on the top of the support mechanism, and the tower is diagonally pulled in all directions on the ground. A pulley block is installed at the central position of the support mechanism, so that the force directions of the load-carrying cable and the towing cable can be adjusted to be below the tower, which is convenient for overhaul, maintenance, operation, etc.

Description

Technical Field

[0001] The present invention relates to the field of underwater towing vehicles, and specifically to a towing vehicle for underwater towing. Background Art

[0002] A towing vehicle is a device that moves an object from one place to another, and is widely used in occasions such as aerial throwing, rescue verification, speed verification, material transportation, etc. Therefore, a towing vehicle is required for displacement use. However, the existing towing vehicle is controlled manually to move the vehicle body. The existing equipment is prone to tilt under overweight pressure and is easily damaged by the blowing of wind, which is not conducive to safe use. When moving, it is unable to quickly respond to and solve different emergencies. In addition, when the existing towing vehicle is in use, once a power failure occurs, the towing vehicle cannot be moved, thus adding hidden dangers to the use and being inconvenient to use. Summary of the Invention

[0003] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a towing vehicle for underwater towing to solve the problems raised in the above background art. The structure of the present invention is novel. When in use, it can perform arithmetic operations based on instructions and collected real-time data to achieve the display of the speed, state, braking and information of the intelligent control parachuting vehicle, information operation, logical judgment and event processing.

[0004] To achieve the above purpose, the present invention is realized through the following technical solutions: A towing vehicle for underwater towing, including a towing vehicle body, the towing vehicle body includes a bearing mechanism, a power system and a braking system. A first support mechanism and a second support mechanism are respectively fixed on the bearing mechanism. A connecting hanger is fixed on the first support mechanism and the second support mechanism. A pulling mechanism is fixed on the connecting hanger. One end of the pulling mechanism is fixed with a fixing mechanism. A lightning protection bracket is fixed on the tops of the first support mechanism and the second support mechanism. A fixing ring is fixed on the lightning protection bracket. A transmission component is installed between the first support mechanism and the second support mechanism. A vehicle body is installed on the transmission component.

[0005] Furthermore, fixing seats are fixed on the first support mechanism and the second support mechanism. A first load-bearing roller is installed on the fixing seat. A load-bearing cable is installed between the first load-bearing rollers. A load-bearing rope is installed on the first load-bearing roller. One end of the load-bearing rope is fixed with a weight mechanism.

[0006] Furthermore, the vehicle body includes an installation frame. A second load-bearing roller is fixed on the top of the installation frame. The second load-bearing roller is installed on the load-bearing cable. A towing cable is installed on the second load-bearing roller.

[0007] Further, an installation plate is fixed inside the mounting frame. A first gear and a second gear are mounted on the installation plate. The first gear and the second gear cooperate with each other, and a fixing rod is fixed on the first gear.

[0008] Further, a threaded column is mounted on the fixing rod, a lifting rod is mounted on the threaded column, and a guiding tube is fixed at the bottom of the lifting rod.

[0009] Further, the braking system includes a power-off hydraulic braking system. The power-off hydraulic braking system includes an oil tank. A solenoid valve and an oil pump are mounted on one side of the oil tank. A piston is mounted on one side of the oil pump. A top plate is mounted on the top of the piston, and a movable plate is mounted on the top of the top plate.

[0010] Further, a tension spring is mounted at the bottom of the movable plate. One end of the tension spring is fixed to a fixed base plate. The load-carrying cable is mounted between the movable plate and the fixed base plate.

[0011] Further, a tractor is mounted at the bottom of the first support mechanism. A winch is mounted on the tractor. The winch cooperates with the load-carrying cable and the towing cable. The load-carrying mechanism is fixed to the ground.

[0012] Further, a lightning protection cable is mounted between the fixing rings, and an adjusting mechanism is mounted between the counterweight mechanism and the load-carrying rope.

[0013] Further, the drag car body includes a civil engineering system, a steel structure system, a trolley system, a control system, a wireless transmission system, and a safety system.

[0014] Advantages of the present invention: A drag car for underwater towing of the present invention includes a load-carrying mechanism; a first support mechanism; a second support mechanism; a connecting lug; a tension mechanism; a fixing mechanism; a lightning protection bracket; a transmission assembly; a vehicle body; a load-carrying rope; a counterweight mechanism; a fixing seat; a first load-bearing roller; a fixing ring; a mounting frame; a second load-bearing roller; a load-carrying cable; a towing cable; an installation plate; a guiding tube; a first gear; a second gear; a fixing rod; a threaded column; a lifting rod; an oil tank; a solenoid valve; an oil pump; a piston; a top plate; a movable plate; a fixed base plate; a tension spring; the ground; a tractor; a winch.

[0015] 1. When in use, the drag car for underwater towing can perform arithmetic output according to instructions and collected real-time data, so as to realize the display, information arithmetic, logical judgment, and event processing of the speed, state, braking, and information of the controlled parachuting intelligent trolley. The wireless transmission system is responsible for transmitting human instructions and trolley information to the control system in a wireless manner. The braking system is a component that provides braking force for the trolley, and the safety system provides necessary safety guarantee measures for the parachuting intelligent trolley during operation and in abnormal states.

[0016] 2. When the drag vehicle for underwater towing is in use, the support mechanism has strong tensile and wind resistance capabilities. Reinforcement plates, guying buckles and other components are welded to the top of the support mechanism, and the tower is pulled obliquely in all directions on the ground. A pulley block is installed at the central position of the support mechanism, which can adjust the force application directions of the load-carrying cable and the towing cable to below the tower, facilitating maintenance, repair, operation, etc.

[0017] 3. The drag vehicle for underwater towing can be reliably braked in the event of the breakage or power failure of the towing rope. In this project, power-off hydraulic braking is adopted. When the trolley is working normally, the solenoid valve is powered on, the return oil circuit is closed, and the oil pump provides an oil pressure of 0.8 Mpa to push the piston to drive the ejector rod. When the thrust is greater than the potential energy spring, the friction plate disengages from the load-carrying cable and the trolley travels normally. When the trolley needs to be emergently braked, only the power supply of the solenoid valve needs to be disconnected, the oil return valve is opened, and the oil flowing into the piston flows back into the fuel tank by using the oil pressure difference. The piston loses oil pressure, and the potential energy spring directly and quickly holds the load-carrying cable and brakes it, effectively increasing safety. Description of the Drawings

[0018] Figure 1 is a schematic structural diagram of a drag vehicle for underwater towing according to the present invention;

[0019] Figure 2 is an enlarged schematic structural diagram of the top of the support mechanism of a drag vehicle for underwater towing according to the present invention;

[0020] Figure 3 is a schematic structural diagram of the vehicle body of a drag vehicle for underwater towing according to the present invention;

[0021] Figure 4 is a schematic side view structural diagram of the vehicle body of a drag vehicle for underwater towing according to the present invention;

[0022] Figure 5 is a power-off hydraulic braking system diagram of a drag vehicle for underwater towing according to the present invention;

[0023] Figure 6 is a schematic side view structural diagram after the installation of the equipment of a drag vehicle for underwater towing according to the present invention;

[0024] Figure 7 is a schematic structural diagram of the working principle of a drag vehicle for underwater towing according to the present invention;

[0025] In the figure: 1, bearing mechanism; 2, first support mechanism; 3, second support mechanism; 4, connecting lug; 5, tension mechanism; 6, fixing mechanism; 7, lightning protection bracket; 8, transmission assembly; 9, vehicle body; 10, load-bearing rope; 11, counterweight mechanism; 12, fixing seat; 13, first load-bearing roller; 14, fixing ring; 15, mounting bracket; 16, second load-bearing roller; 17, load-bearing cable; 18, towing cable; 19, mounting plate; 20, guide tube; 21, first gear; 22, second gear; 23, fixing rod; 24, threaded column; 25, lifting rod; 27, fuel tank; 28, solenoid valve; 29, oil pump; 30, piston; 31, top plate; 32, movable plate; 33, fixing substrate; 34, tension spring; 35, ground; 36, tractor; 37, winch. Detailed implementation manners

[0026] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0027] Please refer to Figures 1 to 7 , the present invention provides a technical solution: a towing vehicle for underwater towing, including a towing vehicle body, the towing vehicle body includes a bearing mechanism 1, a power system and a braking system, a first support mechanism 2 and a second support mechanism 3 are respectively fixed on the bearing mechanism 1, a connecting lug 4 is fixed on the first support mechanism 2 and the second support mechanism 3, a tension mechanism 5 is fixed on the connecting lug 4, a fixing mechanism 6 is fixed at one end of the tension mechanism 5, a lightning protection bracket 7 is fixed on the top of the first support mechanism 2 and the second support mechanism 3, a fixing ring 14 is fixed on the lightning protection bracket 7, a transmission assembly 8 is installed between the first support mechanism 2 and the second support mechanism 3, the first support mechanism 2 and the second support mechanism 3 are support frames to provide support force for the equipment, a vehicle body 9 is installed on the transmission assembly 8, the transmission assembly 8 bears a load-bearing cable 17 and a towing cable 18, a fixing seat 12 is fixed on the first support mechanism 2 and the second support mechanism 3, a first load-bearing roller 13 is installed on the fixing seat 12, a load-bearing cable 17 is installed between the first load-bearing rollers 13, a load-bearing rope 10 is installed on the first load-bearing roller 13, a counterweight mechanism 11 is fixed at one end of the load-bearing rope 10, the counterweight mechanism 11 is a counterweight block. After the rope is used for a long time, the rope will become longer and the tension will be reduced. In order to ensure the safety of tower crane, trolley test, etc., the tension of the load-bearing cable should be controlled within a certain range. The load-bearing cable tension adjustment mechanism is the core component to achieve this function.

[0028] In this embodiment, the vehicle body 9 includes a mounting bracket 15. A second load-bearing roller 16 is fixed to the top of the mounting bracket 15. The second load-bearing roller 16 is mounted on a load-bearing cable 17. A towing cable 18 is mounted on the second load-bearing roller 16. An installation plate 19 is fixed inside the mounting bracket 15. A first gear 21 and a second gear 22 are mounted on the installation plate 19. The first gear 21 and the second gear 22 cooperate with each other. A fixed rod 23 is fixed to the first gear 21. A threaded column 24 is mounted on the fixed rod 23. A lifting rod 25 is mounted on the threaded column 24. A guide tube 20 is fixed to the bottom of the lifting rod 25. A DC servo motor drives the threaded column 24 with threads to rotate through gear transmission. The rotation of the threaded column 24 with threads drives the lifting rod 25 to move up and down. A guide tube 20 is designed on the outer side of the lifting rod 25. The guide tube functions as a guide rail for the lifting rod 26. The aperture at the bottom of the guide tube 20 is smaller than the nut of the lifting rod 26, and it also functions to prevent the lifting rod 26 from falling off and taking out the threaded column 24.

[0029] In this embodiment, the braking system includes a power-off hydraulic braking system. The power-off hydraulic braking system includes an oil tank 27. A solenoid valve 28 and an oil pump 29 are mounted on one side of the oil tank 27. A piston 30 is mounted on one side of the oil pump 29. A top plate 31 is mounted on the top of the piston 30. A movable plate 32 is mounted on the top of the top plate 31. A tension spring 34 is mounted on the bottom of the movable plate 32. One end of the tension spring 34 is fixed to a fixed base plate 33. The load-bearing cable 17 is mounted between the movable plate 32 and the fixed base plate 33. A tractor 36 is mounted on the bottom of the first support mechanism 2. A winch 37 is mounted on the tractor 36. The winch 37 cooperates with the load-bearing cable 17 and the towing cable 18. The load-bearing mechanism 1 is fixed to the ground 35. A lightning protection cable is mounted between the fixed rings 14. An adjustment mechanism is mounted between the counterweight mechanism 11 and the load-bearing rope 10. The towing vehicle body includes a civil engineering system, a steel structure system, a trolley system, a control system, a wireless transmission system, and a safety system. The control system is the core component of the intelligent trolley. The control system is placed in the control room and is composed of a PLC control system, a speed regulation system, an in-vehicle control system, a tension control system, a position marker, a speed measurement, and software, etc.

[0030] When in use, the device fixes the bearing mechanism 1 and the fixing mechanism 6 on the ground 35. The fixing mechanism 6 is connected to the fixing lug 4 through the tension mechanism 5 to provide tension for the support mechanism, avoiding tilting during use. The distance between the first support mechanism 2 and the second support mechanism 3 is 130 meters and the height is 25 meters. A lightning protection cable is installed at the top of the two support mechanisms. The lightning protection cable is installed between the fixing rings 14. Two load-bearing cables 17 are arranged at a height of 22.5 meters. The load-bearing cables 17 serve as the trolley tracks with a gauge of 800 mm. The vehicle body 9 is placed on the load-bearing cables 17. One traction cable 18 is fixed at each of the front and rear ends of the vehicle body 9. The front and rear traction cables 18 are towed by the winches 38 at the bottom of the support mechanism. The vehicle body 15 moves back and forth on the load-bearing cables 17, and the speed range is 1.5 - 2.5 m / s, and the speed is adjustable. The lowest point is 20 meters from the water surface. The support mechanisms are located at both ends of the pool, and the bearing layer is about 2 meters. The winch 37 uses the inherent friction force with the traction cable 18 to drive the traction cable 18 to rotate. The rotational movement of the traction cable 18 makes a linear movement between the two support mechanisms. The vehicle body 9 is fastened to the traction cable 18. When the winch 37 rotates clockwise, it can tow the vehicle body 9 to move forward along the direction of the load-bearing cable, and when it rotates counterclockwise, it can tow the vehicle body 9 to move backward along the direction of the load-bearing cable. The load-bearing cable 17 is designed as a steel wire rope. The two ends of the rope are fixed on the first load-bearing rollers 13, and in the middle, it passes through the first load-bearing rollers 13 and droops to the bottom of the support mechanism, forming a "U" shape. An adjustable drooping force is applied at the bottom of the "U" shape. The drooping force is transmitted to the rope between the support mechanisms through the first load-bearing rollers 13, that is, the tension adjustment of the load-bearing cable is realized. The load-bearing cable tension adjustment mechanism consists of a pulley block, an adjustment bracket, a counterweight, and a tension sensor. Two pulley blocks are installed on the adjustment bracket. The farthest side distance of the pulley block is 800 mm, which is consistent with the gauge of 800 mm. The load-bearing cable passes through the pulley block. The counterweight is installed on the lower baffle of the adjustment bracket, and the tension sensor is clamped on the load-bearing cable. When the tension of the load-bearing cable needs to be adjusted, the tension value collected by the tension sensor is compared with the set target tension, and the purpose of adjusting the tension of the load-bearing cable can be achieved by increasing or decreasing the number of counterweights. Furthermore, the design principle of adjusting according to the ground is realized;

[0031] The principle of power-off hydraulic braking is that when the trolley is working normally, the solenoid valve 28 is powered on to close the return oil circuit. The oil pump 29 provides a pressure of 0.8 Mpa. The oil pressure makes the piston 30 push the top plate 31. When the thrust is greater than the potential energy spring, the friction plate disengages from the load-bearing cable, and the trolley travels normally; when the trolley is in emergency braking or the power supply of the solenoid valve is lost, the solenoid valve 28 opens, and the oil flowing into the piston 29 uses the oil pressure difference, and the oil flows back into the fuel tank 27. The piston 30 loses the oil pressure, and the potential energy spring directly holds the load-bearing cable and brakes it. The safety system consists of lightning protection, infrared induction control, safety braking, and software tension control, etc. In this project, the dragged load is a person, and it is driven by a winch through a steel wire rope drive. The following safety risks should be considered and controlled.

[0032] The foregoing has shown and described the basic principles, main features and advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic features of the present invention, the present invention can be implemented in other specific forms. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes that fall within the meaning and scope of the equivalent elements of the claims in the present invention. Any reference signs in the claims should not be construed as limiting the claims concerned.

[0033] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A drag car for dragging in water, comprising a drag car body, characterized in that: The drag vehicle body includes a bearing mechanism (1), a power system, and a braking system. A first support mechanism (2) and a second support mechanism (3) are respectively fixed on the bearing mechanism (1). Connecting lugs (4) are fixed on the first support mechanism (2) and the second support mechanism (3). A tension mechanism (5) is fixed on the connecting lugs (4). A fixing mechanism (6) is fixed at one end of the tension mechanism (5). Lightning protection brackets (7) are fixed on the tops of the first support mechanism (2) and the second support mechanism (3). A fixing ring (14) is fixed on the lightning protection brackets (7). A transmission assembly (8) is installed between the first support mechanism (2) and the second support mechanism (3). A vehicle body (9) is installed on the transmission assembly (8); The vehicle body (9) includes a mounting frame (15). An installation plate (19) is fixed inside the mounting frame (15). A first gear (21) and a second gear (22) are installed on the installation plate (19). The first gear (21) and the second gear (22) cooperate with each other. A fixing rod (23) is fixed on the first gear (21); Fixing seats (12) are fixed on the first support mechanism (2) and the second support mechanism (3). First load-bearing rollers (13) are installed on the fixing seats (12). A load-bearing cable (17) is installed between the first load-bearing rollers (13). A load-bearing rope (10) is installed on the first load-bearing rollers (13). A counterweight mechanism (11) is fixed at one end of the load-bearing rope (10); The braking system includes a power-off hydraulic braking system. The power-off hydraulic braking system includes an oil tank (27). A solenoid valve (28) and an oil pump (29) are installed on one side of the oil tank (27). A piston (30) is installed on one side of the oil pump (29). A top plate (31) is installed on the top of the piston (30). A movable plate (32) is installed on the top of the top plate (31); A tension spring (34) is installed at the bottom of the movable plate (32). One end of the tension spring (34) is fixed to a fixed base plate (33). The load-bearing cable (17) is installed between the movable plate (32) and the fixed base plate (33).

2. The drag cart for underwater dragging according to claim 1, wherein: A second load-bearing roller (16) is fixed on the top of the mounting frame (15). The second load-bearing roller (16) is installed on the load-bearing cable (17). A towing cable (18) is installed on the second load-bearing roller (16).

3. The drag vehicle for underwater towing according to claim 1, characterized in that: A threaded column (24) is installed on the fixing rod (23). A lifting rod (25) is installed on the threaded column (24). A guide tube (20) is fixed at the bottom of the lifting rod (25).

4. A drag cart for underwater towing according to claim 1, wherein: A tractor (36) is installed at the bottom of the first support mechanism (2). A winch (37) is installed on the tractor (36). The winch (37) cooperates with the load-bearing cable (17) and the towing cable (18). The bearing mechanism (1) is fixed on the ground (35).

5. A drag cart for underwater towing according to claim 1, wherein: A lightning protection cable is installed between the fixing rings (14). An adjusting mechanism is installed between the counterweight mechanism (11) and the load-bearing rope (10).

6. The drag cart for underwater dragging according to claim 1, wherein: The drag car body includes a civil engineering system, a steel structure system, a trolley system, a control system, a wireless transmission system, and a safety system.

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