Ramp for launching and retrieving boats

Abstract

The utility model belongs to the field of ship launching and landing technology, and relates to a ramp ship launching and landing equipment. The equipment comprises a driving device and a carrying device, a pit chamber is concavely arranged on the wharf ground opposite to the ramp, and a cover plate is rotationally connected to the top of the pit chamber; the carrying device is located on the ramp to support the ship, the driving device comprises a first winch and a second winch arranged in the pit chamber, a steel wire rope on the first winch is connected to the leading end of the carrying device by passing through a first guide wheel on the inner wall of the cover plate, a steel wire rope on the second winch is connected to the trailing end of the carrying device by passing through a second guide wheel on the side wall of the pit chamber and a steering wheel at the end of the ramp away from the wharf; when the ship is launched or landed, the cover plate is opened, the first winch or the second winch is operated, the carrying device is driven to move the ship up or down along the ramp, and the winch stops operating after the ship is launched or landed, and the cover plate is closed. The utility model can realize convenient launching and landing of the ship at the ramp and does not affect the aesthetic appearance of the wharf environment.

Description

Technical Field

[0001] This utility model belongs to the field of boat launching and launching technology, specifically relating to a boat launching and launching equipment at a ramp. Background Technology

[0002] In recent years, sailing and yachting have become increasingly popular both domestically and internationally, typically requiring the construction of dedicated marinas to create specialized port areas that provide comprehensive services for these vessels, including external protection, internal mooring, and landing. Currently, to meet the space requirements for launching and launching vessels, particularly in terms of height, marinas generally require vertical quay walls and ramps. One end of the ramp connects to the marina ground, while the other extends into the water. Transport tracks are laid on the ramps, and large lifting facilities such as gantry cranes, overhead cranes, fixed cantilever cranes, or long-stroke forklifts are also needed to assist in launching and launching vessels. These facilities occupy significant shoreline and water area, resulting in substantial investment, high maintenance costs, and considerable space requirements, which clash with the aesthetically pleasing environment surrounding the marinas. Furthermore, the preparation time for launching and launching vessels using these facilities is lengthy, leading to low operational efficiency. Utility Model Content

[0003] In view of the shortcomings of the related technologies, this utility model provides a boat launching and launching equipment at a ramp, which aims to enable boats to launch and launch conveniently at ramps, reduce equipment investment and operating costs, and does not affect the aesthetics of the boat dock environment.

[0004] This utility model provides a boat launching and launching equipment for a ramp. A pit chamber is recessed in the dock ground facing the ramp, and a cover plate is rotatably connected to the top of the pit chamber. The boat launching and launching equipment for the ramp includes a drive unit and a carrying unit. The transport equipment is located on the ramp and is used to support boats that are about to go into the water or go out into the water. The drive unit includes a first winch and a second winch located in the pit chamber. A first wire rope is wound on the first winch and a second wire rope is wound on the second winch. A first guide wheel is provided on the inner wall of the cover plate. The first wire rope passes around the first guide wheel and connects to the head end of the transport device. A second guide wheel is provided on the side wall of the pit chamber. A steering wheel is provided at the end of the ramp away from the dock. The second wire rope passes around the second guide wheel and the steering wheel in sequence and connects to the tail end of the transport device. When a boat is to be launched or launched, the cover is opened, and the first or second winch operates, driving the transport device to move the boat up or down along the length of the ramp. After the boat has been launched or launched, the first and second winches stop operating, and the cover is closed.

[0005] In some embodiments, a cable groove is recessed on the ramp and on the dock floor facing the ramp side of the pit chamber, and a second steel wire rope is threaded through the cable groove.

[0006] In some embodiments, multiple idlers are spaced apart along the length of the trough to support the second wire rope.

[0007] In some embodiments, the transport device includes a lead marker car and multiple boat trolleys that are spaced apart and connected sequentially along the length of the ramp. A first steel wire rope is connected to the lead marker car, and a second steel wire rope is connected to the boat trolley furthest from the lead marker car. The lead marker car is equipped with a marker pole, the top of which is always above the water surface. The marker pole is equipped with a water level gauge and a mooring ram. The multiple boat trolleys work together to support the boat.

[0008] In some embodiments, each boat trolley is provided with a bottom pad and two side pads disposed opposite each other on both sides of the bottom pad, and the bottom of the boat is pressed against the bottom pad and the two side pads.

[0009] In some embodiments, a column is provided in the pit chamber, and the driving device also includes a hydraulic cylinder, with its two ends respectively hinged to the top of the column and the inner wall of the cover plate.

[0010] In some embodiments, both the first winch and the second winch are hydraulic winches; a hydraulic pump station is provided in the pit chamber to provide hydraulic power to the first winch, the second winch, and the hydraulic cylinder.

[0011] In some embodiments, the pit chamber is divided into a drive zone and a power zone arranged side by side; the first winch, the second winch, the column and the hydraulic cylinder are all arranged in the drive zone, and the cover plate is rotatably connected to the top of the drive zone of the pit chamber; the hydraulic pump station is arranged in the power zone, and the top of the power zone of the pit chamber is provided with a cover plate.

[0012] In some embodiments, a water collection trap is recessed on the bottom surface of the pit chamber, and a submersible pump is installed inside the water collection trap. The outlet of the submersible pump is connected to the outside of the pit chamber through a drain pipe.

[0013] Based on the above technical solution, the boat launching and launching equipment at the ramp in this embodiment of the utility model, through the specific setting and combined application of the drive device in the pit and the carrying device on the ramp, can realize convenient launching and launching of boats at the ramp, improve the efficiency of boat launching and launching operations, reduce the occupation of shoreline, water area and dock space, not affect the safety of dock ground passage, not affect the aesthetics of the ramp and dock environment, and does not require laying tracks or using large boat lifting facilities, thus reducing equipment investment and operating costs. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is an overall schematic diagram of the boat launching and launching equipment at the ramp of this utility model. Figure 2 for Figure 1 Enlarged view of the central pit chamber; Figure 3 This is a top view of the pit chamber in this utility model; Figure 4 for Figure 1 Enlarged view of the first vehicle in the Chinese bidding process; Figure 5 This is a schematic diagram of the structure of the first prototype vehicle in this utility model; Figure 6 for Figure 1 Enlarged view of the vehicle depot on the middle of the ship; Figure 7 This is a schematic diagram of the structure of the boat-shaped vehicle in this utility model; Figure 8 This is a schematic diagram illustrating the state of a boat being launched or launched using this utility model; Figure 9 This is a schematic diagram of the state when using this utility model to tow a boat for launching or launching; In the diagram: 10. Dock floor; 20. Ramp; 30. Pit chamber; 301. Drive zone; 302. Power zone; 31. Cover plate; 311. Hinge; 32. Frame beam; 33. Water collection trap; 34. Ladder; 35. First guide wheel; 36. Second guide wheel; 37. Steering wheel; 38. Cable trough; 39. Idler roller; 40. Carrying device; 41. First marker car; 411. Marker pole; 412. Water level gauge; 413. Mooring ram; 42. Boat trolley; 421. Bottom pad; 422. Side pad; 43. Connecting rod; 44. Jack cable; 50. Drive unit; 51. First winch; 52. Second winch; 53. First wire rope; 54. Second wire rope; 55. Column; 56. Hydraulic cylinder; 57. Hydraulic pump station; 60. Boat. Detailed Implementation

[0015] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0016] In the description of this utility model, it should be understood that the terms "center", "lateral", "longitudinal", "upper", "lower", "top", "bottom", "inner", "outer", "left", "right", "front", "rear", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0017] The terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] refer to Figures 1-9 As shown, this utility model provides a boat launching and launching equipment at a ramp, which is used to meet the launching and launching needs of boats such as sailboats and yachts at the ramp 20.

[0020] A pit chamber 30 is recessed in the dock ground 10 facing the ramp 20. A cover plate 31 is rotatably connected to the top of the pit chamber 30. The cover plate 31 is used to close or open the pit chamber 30. Specifically, the cover plate 31 is rotatably connected to the top of the pit chamber 30 away from the ramp 20 via a hinge 311. The open end of the cover plate 31 is close to the ramp 20. After the cover plate 31 is opened, it tilts towards the ramp 20. When the cover plate 31 is closed, the top surface of the cover plate 31 is flush with the dock ground 10.

[0021] The vessel launching and launching equipment at the ramp includes a drive unit 50 and a carrying unit 40. The carrying unit 40 is located on the ramp 20 and is used to support the vessel 60 waiting to be launched or launched. Specifically, the carrying unit 40 has wheels and can drive the vessel 60 on it to move up or down along the length of the ramp 20 under the action of external force. The end of the carrying unit 40 facing the dock ground 10 is called the bow end, and the other end is called the stern end.

[0022] The drive unit 50 includes a first winch 51 and a second winch 52 located within the pit chamber 30. A first wire rope 53 is wound on the first winch 51, and a second wire rope 54 is wound on the second winch 52. A first guide wheel 35 is provided on the inner wall of the cover plate 31. The first wire rope 53 on the first winch 51 passes around the first guide wheel 35 and connects to the head end of the transport device 40. There is at least one first guide wheel 35 on the cover plate 31. A second guide wheel 36 is provided on the side wall of the pit chamber 30 near the top of the pit chamber 30. A steering wheel 37 is provided at the end of the ramp 20 away from the dock. The second wire rope 54 on the second winch 52 passes around the second guide wheel 36 and the steering wheel 37 in sequence and connects to the tail end of the transport device 40. Furthermore, the first guide wheel 35, the second guide wheel 36, the steering wheel 37, the first wire rope 53, the second wire rope 54, and the transport device 40 are generally arranged corresponding to the centerline of the ramp 20. Thus, a closed-loop traction system is formed by the arrangement of the first winch 51, the first wire rope 53, the transport device 40, the second wire rope 54, and the second winch 52.

[0023] When the boat 60 needs to be launched or launched, the cover plate 31 on the pit chamber 30 must be opened. The opening angle of the cover plate 31 is set according to actual needs, and the opening angle of the cover plate 31 must be locked after it is opened. Specifically, when the boat 60 needs to be launched, the first winch 51 operates, causing the first wire rope 53 to wind onto the drum of the first winch 51. This drives the carrying device 40 via the first wire rope 53, moving the boat 60 up the length of the ramp 20. Simultaneously, the tension is transmitted to the second wire rope 54, which drives the second winch 52 to rotate passively. When the boat 60 needs to be launched, the second winch 52 operates, causing the second wire rope 54 to wind onto the drum of the second winch 51. The second wire rope 54 drives the transport device 40 to move the boat 60 down the length of the ramp 20 via the second wire rope 54, while simultaneously transferring tension to the first wire rope 53, which in turn drives the first winch 51 to rotate passively. This enables convenient launching and launching of the boat 60. During launching and launching, both the first and second wire ropes 53 and 54 remain taut to ensure the transport device 40 does not deviate. After launching or launching, both the first and second winches 51 and 52 stop operating, and the cover plate 31 closes. When the boat 60 is not launching or launching, the cover plate 31 seals the pit chamber 30, reducing the space occupied by the launching and launching equipment on the dock, ensuring the dock floor 10 is flat and unobstructed, and guaranteeing the safety of passage on the dock floor 10 and the overall aesthetics of the dock environment.

[0024] The above illustrative embodiment, through the specific arrangement of the transport device 40 and the two winches connected end to end to the transport device 40 by steel wire rope, enables convenient launching and launching of the boat 60 at the ramp 20, improving the efficiency of launching and launching operations of the boat 60. Compared with the prior art, this embodiment does not require the laying of tracks, which can reduce equipment investment and operating costs. Through the setting of the pit chamber 30, the drive device 50 is placed under the dock surface 10, reducing the occupation of dock space. Through the setting of the rotating cover plate 31 on the pit chamber 30, when the boat 60 is not launching or launching, the pit chamber 30 is closed to coordinate with the surrounding environment, without affecting the traffic safety of the dock surface 10 and the aesthetics of the dock environment.

[0025] refer to Figure 1 , Figure 2 , Figures 5-7 As shown, in some embodiments, a cable trough 38 is recessed on the ramp 20 and on the dock floor 10 facing the ramp 20 from the pit chamber 30. Specifically, the cable trough 38 is recessed on the centerline of the ramp 20, and the second wire rope 54 on the second winch 52 passes through the cable trough 38. Thus, the cable trough 38 prevents the second wire rope 54 from protruding above the dock floor 10 or the ramp 20 floor, improving operational safety and enhancing the appearance of the ramp 20. Furthermore, in some embodiments, multiple idler rollers 39 are spaced apart along the length of the cable trough 38 to support the second wire rope 54, preventing it from sagging and ensuring it remains taut, further ensuring that the transport device 40 does not deviate from its designated position.

[0026] refer to Figure 1 , Figures 4-7As shown, in some embodiments, the transport device 40 includes a lead car 41 and multiple boat cars 42 arranged at intervals and connected sequentially along the length of the ramp 20. The lead car 41 is located at the end closest to the dock ground 10. The lead car 41 and the boat cars 42, as well as adjacent boat cars 42, are connected by rigid connecting rods 43. Both the boat cars 42 and the lead car 41 are typically equipped with four sets of wheels to allow the transport device 40 to travel along the ramp 20. The first wire rope 53 on the first winch 51 is connected to the center of the crossbeam of the lead car 41 via a jack cable 44. The second wire rope 54 on the second winch 52 is connected to the center of the crossbeam of the boat car 42 furthest from the lead car 41. Multiple boat cars 42 jointly support the boat 60, and the specific number of boat cars 42 can be flexibly set according to the size of the boat 60 to be launched or launched. The lead vehicle 41 is equipped with a marker pole 411, which is usually located at the center of the lead vehicle 41, with its top always above the water surface. When a boat 60 needs to board a boat trolley 42, the marker pole 411 on the lead vehicle 41 serves as a guide and position for the boat 60. The marker pole 411 is equipped with a mooring horn 413, to which one end of the boat 60 to be launched or launched can be tied. The marker pole 411 is also equipped with a water level gauge 412 for observing the water level. Compared to the integrated transport device 40, the transport device 40 in this embodiment, composed of the lead vehicle 41 and multiple boat trolleys 42, can flexibly adapt to the needs of launching and launching different sizes of boats 60, and reduces the weight and manufacturing cost of the transport device 40.

[0027] refer to Figure 7 As shown, in some embodiments, each boat carrier 42 is provided with a bottom pad 421 and two side pads 422 disposed opposite to each other on both sides of the bottom pad 421. The bottom of the boat 60 is pressed against the bottom pad 421 and the two side pads 422. Specifically, the bottom pad 421 and the two side pads 422 form an approximately V-shaped receiving space. The shape of the receiving space is adapted to the bottom shape of the boat 60 to be launched or launched, so as to provide stable support for the boat 60.

[0028] refer to Figure 2 , Figure 3 As shown, a column 55 is installed inside the pit chamber 30, and the column 55 can be located between the first winch 51 and the second winch 52. The drive device 50 also includes a hydraulic cylinder 56, the two ends of which are hinged to the top of the column 55 and the inner wall of the cover plate 31, respectively. When it is necessary to open the cover plate 31, the hydraulic cylinder 56 extends to push the cover plate 31 obliquely, causing the cover plate 31 to flip to a preset angle and locking the final opening angle of the cover plate 31 to ensure that the traction effect of the drive device 50 on the transport device 40 is stable and controllable. When it is necessary to close the cover plate 31, the hydraulic cylinder 56 retracts to drive the cover plate 31 to flip to be flush with the dock ground 10 to close the pit chamber 30. Reference Figure 3 As shown, in some embodiments, both the first winch 51 and the second winch 52 are hydraulic winches; a hydraulic pump station 57 is provided inside the pit chamber 30. The hydraulic pump station 57 is connected to the first winch 51, the second winch 52, and the hydraulic cylinder 56 via inlet and outlet oil pipes, respectively, and provides hydraulic power to the first winch 51, the second winch 52, and the hydraulic cylinder 56 through the configuration of the hydraulic pump station 57. It should be noted that the hydraulic cylinder 56 is equipped with a safety lock, so even if the hydraulic pipeline breaks, the cover plate 31 will not automatically fall back. Furthermore, an intelligent control system can be configured to control the opening and closing of the cover plate 31 and the operation of the first winch 51 and the second winch 52 using devices such as mobile phones or computers, realizing intelligent remote control.

[0029] refer to Figure 2 , Figure 3 As shown, in some embodiments, the pit chamber 30 is divided into a drive zone 301 and a power zone 302 arranged side by side. The drive zone 301 corresponds to the middle section of the ramp 20 in the width direction. The first winch 51, the second winch 52, the column 55 and the hydraulic cylinder 56 are all arranged in the drive zone 301. The cover plate 31 is rotatably connected to the top of the drive zone 301 of the pit chamber 30. The power zone 302 is located on one side of the drive zone 301. The hydraulic pump station 57 is arranged in the power zone 302. The top of the power zone 302 of the pit chamber 30 is provided with a cover plate (not shown). The cover plate is detachably connected to the pit chamber 30. It should be noted that since the hydraulic pump station 57 does not require frequent maintenance, the cover plate and the pit chamber 30 are normally closed; the cover plate 31 is frequently opened and closed as needed for the boat 60 to go up and down, so the drive device 50 is centrally located on one side inside the pit chamber 30; thus, a compact layout of the various devices and equipment inside the pit chamber 30 is achieved, and the size of the movable cover plate 31 can be reduced, reducing the impact on the dock surface 10, and also reducing the configuration of the hydraulic cylinder 56.

[0030] Furthermore, a frame beam 32 is laid across the top of the pit chamber 30 at the junction of the drive zone 301 and the power zone 302. One side of the cover plate 31 and the shield are both attached to the frame beam 32, thereby improving the connection stability of the cover plate 31 and the shield at the top of the pit chamber 30 and improving the passage safety of the dock surface 10 after the cover plate 31 and the shield close the pit chamber 30.

[0031] refer to Figure 2 , Figure 3As shown, in some embodiments, a water collection trap 33 is recessed on the bottom surface of the pit chamber 30 to collect any water that may accumulate inside the pit chamber 30. A submersible pump (not shown) is installed inside the water collection trap 33, and the outlet of the submersible pump is connected to the outside of the pit chamber 30 via a drain pipe (not shown). The submersible pump and drain pipe can be used to drain the water in the water collection trap 33 to the outside of the pit chamber 30. A ladder 34 is provided on the side wall of the pit chamber 30 to allow personnel to enter and exit the pit chamber 30 for equipment debugging and maintenance.

[0032] The following is combined with Figures 1-9 Briefly describe the main steps of launching and launching the boat 60 using this utility model: 1) Before the boat 60 is launched, the transport device 40 is located at the end of the ramp 20 away from the dock ground 10; the actual water level is observed using the water level gauge 412 on the marker pole 411 of the first marker vehicle 41; when the water level reaches above the preset tide level, the boat 60 is aligned with the marker pole 411 on the first marker vehicle 41 and starts moving until the boat 60 is directly above the multiple boat trolleys 42, and then the alignment of the boat 60 with the marker pole 411 of the first marker vehicle 41 is checked again and ensured; water is injected into the ballast tank of the boat 60 to make the boat 60 sink until it sits on the multiple boat trolleys 42, and one end of the boat 60 is tied to the mooring ram 413 on the marker pole 411 of the first marker vehicle 41; The hydraulic cylinder 56 inside the pit chamber 30 is activated to extend it and open the cover plate 31 on the top of the pit chamber 30. It is understood that the first wire rope 53 will be pulled out a certain length as the cover plate 31 is opened, which will drive the first winch 51 to rotate passively. After the cover plate 31 is opened to the position, the first winch 51 is activated to wind the first wire rope 53 onto the drum of the first winch 51. The first wire rope 53 drives the transport device 40 to move the boat 60 up the length of the ramp 20 until it reaches the dock ground 10 at the top of the ramp 20, thereby realizing the launching operation of the boat 60 at the ramp 20.

[0033] After the boat 60 completes the launching operation, the first winch 51 stops operating. To ensure the safety of passage on the dock surface 10, the hydraulic cylinder 56 retracts to close the cover plate 31 and seal the pit chamber 30. It is understood that when the cover plate 31 is closed, the first winch 51 stops for a period of time so that the first wire rope 53 continues to wind onto the drum of the first winch 51. This ensures that the first wire rope 53 remains taut after the cover plate 31 is closed, preventing the transport device 40 from shifting and facilitating the subsequent launching operation of the boat 60.

[0034] 2) When the boat 60 is to be launched, the transport device 40 is located at one end of the ramp 20 near the dock ground 10, and the boat 60 sits on the transport device 40. The hydraulic cylinder 56 in the pit chamber 30 is activated to extend it and open the cover plate 31 on the top of the pit chamber 30. It is understood that the first wire rope 53 will be pulled out a certain length as the cover plate 31 opens, driving the first winch 51 to rotate passively. After the cover plate 31 is opened to the correct position, the second winch 52 is activated, causing the second wire rope 54 to wind onto the drum of the second winch 52. The second wire rope 54 drives the transport device 40 to move the boat. The boat 60 moves down the length of the ramp 20 until it reaches the end of the ramp 20 away from the dock surface 10. The second winch 52 stops operating, and the hydraulic cylinder 56 retracts to close the cover 31 to seal the pit chamber 30, ensuring the safety of passage and the aesthetics of the dock surface 10. It should be noted that during the closing of the cover 31, the first winch 51 operates synchronously so that the first wire rope 53 is wound onto the drum of the first winch 51, so that the first wire rope 53 remains taut after the cover 31 is closed, preventing the carrying device 40 from shifting and facilitating the subsequent launching operations of the boat 60. Disconnect the boat 60 from the mooring ram 413; the ballast tank of the boat 60 is drained outward, causing the boat 60 to float up and separate from the boat trolley 42, and the boat 60 leaves the transport device 40, thereby realizing the launching operation of the boat 60 at the ramp 20.

[0035] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0036] The above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A device for launching and launching boats at a ramp, characterized in that, A pit chamber is recessed in the dock floor directly opposite the ramp, and a cover plate is rotatably connected to the top of the pit chamber; the launching and launching equipment for boats at the ramp includes a drive unit and a carrying unit, wherein... The transport device is located on the ramp and is used to support boats waiting to be launched or launched. The drive unit includes a first winch and a second winch located in the pit chamber. A first wire rope is wound on the first winch, and a second wire rope is wound on the second winch. A first guide wheel is provided on the inner wall of the cover plate, and the first wire rope passes around the first guide wheel and connects to the head end of the transport device. A second guide wheel is provided on the side wall of the pit chamber, and a steering wheel is provided at the end of the ramp away from the dock. The second wire rope passes around the second guide wheel and the steering wheel in sequence and connects to the tail end of the transport device. When the vessel is to be launched or launched, the cover is opened, and the first or second winch operates, driving the transport device to move the vessel up or down along the length of the ramp; when the vessel has completed launching or launching, the first and second winches stop operating, and the cover is closed.

2. The equipment for launching and launching boats at a ramp according to claim 1, characterized in that, A cable groove is recessed on the ramp and on the dock floor facing the ramp side of the pit chamber, and a second steel wire rope is threaded through the cable groove.

3. The equipment for launching and launching boats at a ramp according to claim 2, characterized in that, Multiple idlers are spaced apart along the length of the groove to support the second wire rope.

4. The equipment for launching and launching boats at a ramp according to claim 1, characterized in that, The transport device includes a lead marker car and multiple boat trolleys that are spaced apart and connected sequentially along the length of the ramp. The first steel wire rope is connected to the lead marker car, and the second steel wire rope is connected to the boat trolley furthest from the lead marker car. The lead marker car is equipped with a marker pole, the top of which is always above the water surface. The marker pole is equipped with a water level gauge and a mooring ram. The multiple boat trolleys work together to support the boat.

5. The equipment for launching and launching boats at a ramp according to claim 4, characterized in that, Each of the boat hull cars is provided with a bottom pad and two side pads arranged opposite each other on both sides of the bottom pad, and the bottom of the boat is pressed against the bottom pad and the two side pads.

6. The equipment for launching and launching boats at a ramp according to claim 1, characterized in that, The pit chamber is equipped with a column, and the driving device also includes a hydraulic cylinder, the two ends of which are respectively hinged to the top of the column and the inner wall of the cover plate.

7. The equipment for launching and launching boats at a ramp according to claim 6, characterized in that, Both the first winch and the second winch are hydraulic winches; a hydraulic pump station is provided in the pit chamber, which is used to provide hydraulic power to the first winch, the second winch and the hydraulic cylinder.

8. The equipment for launching and launching boats at a ramp according to claim 7, characterized in that, The pit chamber is divided into a drive zone and a power zone arranged side by side; the first winch, the second winch, the column and the hydraulic cylinder are all located in the drive zone, and the cover plate is rotatably connected to the top of the drive zone of the pit chamber; the hydraulic pump station is located in the power zone, and the top of the power zone of the pit chamber is equipped with a cover plate.

9. The equipment for launching and launching boats at a ramp according to claim 1, characterized in that, A water collection trap is recessed on the bottom surface of the pit chamber, and a submersible pump is installed inside the water collection trap. The outlet of the submersible pump is connected to the outside of the pit chamber through a drain pipe.

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