Bottom supporting device for ramp of roll-on-roll-off ship

Abstract

The utility model discloses a roll-on-roll-off ship ramp bottom supporting device and relates to the roll-on-roll-off equipment field, a connecting rod is hinged to a roll-on-roll-off ship ramp, the supporting device comprises a base, a telescopic rod and a plug pin, the telescopic rod and the plug pin are fixed and arranged on one side of the base, a lock hole is formed in the base, and the plug pin is arranged in the lock hole. One end of the connecting rod is slidably arranged in the base and extends out through the telescopic rod to drive the bolt to be inserted into the base from the lock hole and extrude the connecting rod, so that the connecting rod and the base are locked and fixed. The ramp bottom supporting device for the roll-on-roll-off ship can replace a final support of a driving device in a ramp working state, effectively protects the driving device, is safe and reliable, greatly prolongs the service life of the whole ramp equipment, can adapt to passing and storage of vehicles with different heights, and is high in applicability.

Description

Technical Field

[0001] The utility model relates to the field of roll-on / roll-off equipment, in particular to a bottom support device for a roll-on / roll-off ship ramp. Background Art

[0002] A ro-ro ship is like a moving multi-storey indoor parking building. Its multi-layer decks can carry a large number of vehicles at a time. When vehicles enter or exit the ro-ro ship, they must drive in or out of each deck through the ramp. At present, the ramp in the working state is usually only supported by the drive device that drives it to rotate and lift. The load of the vehicle on the ramp is basically completely borne by the drive device. After long-term use, it is easy to affect the life of the drive device or the entire ramp equipment. Therefore, it is necessary to design a support device to assist the drive device in supporting the bottom of the ro-ro ship ramp in the working state, effectively protect the drive device, and increase the service life of the entire ramp equipment. Utility Model Content

[0003] In view of the above-mentioned shortcomings that currently exist, the utility model provides a bottom support device for a roll-on / roll-off ship ramp, which can replace the final support of the driving device when the ramp is in working condition, effectively protects the driving device, is safe and reliable, greatly improves the service life of the entire ramp equipment, and can adapt to the passage and storage of vehicles of different heights, and has strong applicability.

[0004] In order to achieve the above object, the embodiment of the utility model adopts the following technical solution:

[0005] A bottom support device for a roll-on / roll-off ship ramp, wherein a connecting rod is hinged on the roll-on / roll-off ship ramp, the supporting device comprises a base, and the supporting device further comprises a telescopic rod and a latch, which are fixed and both are arranged on one side of the base. A locking hole is provided on the base, and one end of the connecting rod is slidably arranged in the base and extended through the telescopic rod to drive the latch to be inserted into the base from the locking hole and squeeze the connecting rod, so that the connecting rod and the base are locked and fixed.

[0006] According to one aspect of the utility model, it also includes a guide rail, which is fixed in the base and has a track groove, and one end of the connecting rod is slidably arranged in the track groove.

[0007] According to one aspect of the utility model, the base includes a first fixing plate and a second fixing plate, which are arranged in parallel and spaced apart, and each of which has a locking hole, and one end of the connecting rod is slidably arranged between the first fixing plate and the second fixing plate.

[0008] According to one aspect of the utility model, a limiting plate is provided at one end of the guide rail, and the limiting plate is fixed in the base.

[0009] According to one aspect of the utility model, the latch is in the shape of a rectangular block, the lock hole is a rectangular hole, and the track groove is a U-shaped groove.

[0010] According to one aspect of the utility model, the base further includes an auxiliary plate, which is arranged in parallel and spaced apart on one side of the first fixing plate, and has an auxiliary hole arranged on the auxiliary plate, which is aligned with the lock hole, and the latch sleeve is arranged in the auxiliary hole.

[0011] According to one aspect of the utility model, the base further includes a plurality of rib plates, and the rib plates are respectively fixed to the first fixing plate, the second fixing plate, and the auxiliary plate.

[0012] According to one aspect of the utility model, the number of the lock holes is several, the lock holes are regularly arranged on the base, and the number of the telescopic rods, the latches, and the lock holes is consistent.

[0013] According to one aspect of the utility model, it also includes a first travel switch and a second travel switch, both of which are arranged on one side of the base, and the first travel switch and the second travel switch are respectively arranged at both ends of the latch.

[0014] According to one aspect of the utility model, it also includes a control system, which is connected to the telescopic rod, the first travel switch, and the second travel switch respectively.

[0015] Advantages of the implementation of the utility model: when the ramp (driven by the driving device) rises, one end of the connecting rod slides to a suitable position in the base, and then extends out by the telescopic rod, and the driving pin is inserted into the base from the lock hole and presses the connecting rod, so that the connecting rod and the base are locked and fixed. At this time, the connecting rod can assist the driving device to support the bottom of the ramp; in this way, the device can replace the final support of the original driving device in the working state of the ramp, effectively protect the driving device, be safe and reliable, and greatly improve the service life of the entire ramp equipment. By setting two or more lock holes, the device can ensure that the ramp is supported when it is in working positions at different angles, that is, it can adapt to ramps with different working angles, and adapt to the passage and storage of vehicles of different heights, and has strong applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0019] Figure 3 for Figure 2 Side view of the local structure;

[0020] Figure 4 It is a schematic diagram of the ramp being in a high working position when the utility model is applied;

[0021] Figure 5 This is a schematic diagram of the ramp being in a low working position when the utility model is used.

[0022] The names corresponding to the serial numbers in the figure are as follows:

[0023] 1. Ramp; 2. Driving device; 3. Connecting rod; 4. Base; 41. First fixing plate; 42. Second fixing plate; 43. Auxiliary plate; 44. Rib plate; 5. Telescopic rod; 6. Latch; 7. Lock hole; 8. Guide rail; 81. Track groove; 9. Limit plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the utility model. In the description of the utility model, it should be noted that the orientation or position relationship indicated by the terms "top", "bottom", "one side", "the other side", "front", "back", "middle part", "inside", "top", "bottom" and the like is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the utility model.

[0025] Embodiment 1

[0026] like Figure 1-Figure 5As shown, a bottom support device for a ro-ro ramp is installed on the ground or on the surface of any structural member, and a driving device 2 is provided on the ground of the dock to connect with the bottom of the ro-ro ramp 1; a connecting rod 3 is hinged on the ro-ro ramp 1, and the connecting rod 3 is located on the side of the driving device 2, and the two are respectively located at the left and right ends of the ramp 1, and the bottom end of the connecting rod 3 is slidably arranged in the base 4; the supporting device includes a base 4, a telescopic rod 5, and a latch 6; the base 4 is fixed on the ground, and the telescopic rod 5 and the latch 6 are both arranged on the same side of the base 4, the telescopic rod 5 is an electric cylinder, and the protruding end of the telescopic rod 5 is fixed to the latch 6, and the bottom of the telescopic rod 5 is fixed to the ground through a mounting seat of any structure; a locking hole 7 is provided on the side of the base 4, and the latch 6 is aligned with the locking hole 7; the telescopic rod 5 is extended, and the driving latch 6 is inserted into the base 4 from the locking hole 7 and presses the bottom end of the connecting rod 3, so that the connecting rod 3 and the base 4 are locked and fixed.

[0027] In this embodiment, there is only one locking hole 7 , which passes through the side surface of the base 4 , and the number of the telescopic rod 5 , the latch pin 6 , and the locking hole 7 is the same.

[0028] In this embodiment, the base 4 includes a first fixing plate 41 and a second fixing plate 42, which have the same structure and are arranged parallel to each other and spaced apart. The two are fixed on the ground or the surface of any structural member, and the fixing method is arbitrary and can be welded; the locking holes 7 are respectively opened through the sides of the first fixing plate 41 and the second fixing plate 42; the bottom end of the connecting rod 3 is slidably arranged between the first fixing plate 41 and the second fixing plate 42.

[0029] In this embodiment, the base 4 further includes a plurality of ribs 44, which are conventional structures, triangular plates or square plates, one end of which is welded and fixed to the first fixing plate 41 or the second fixing plate 42, and the other end is fixed to the ground, so as to enhance the structural stability.

[0030] In this embodiment, the support device further includes a guide rail 8, which is fixed between the first fixing plate 41 and the second fixing plate 42; the guide rail 8 is provided with a track groove 81, which is a U-shaped groove, and the bottom end of the connecting rod 3 is slidably arranged in the track groove 81. In this way, the bottom end of the connecting rod 3 can slide freely on the track groove 81, and the guide rail 8 or the track groove 81 can play a guiding and limiting role.

[0031] In this embodiment, a limit plate 9 is provided at the end of the guide rail 8, the limit plate 9 is tilted, and the limit plate 9 is fixed between the first fixed plate 41 and the second fixed plate 42. The limit plate 9 can be welded to the two fixed plates or to the guide rail 8. In this way, the limit position of the bottom end of the connecting rod 3 when sliding between the two fixed plates can be limited.

[0032] In this embodiment, the latch 6 is in a rectangular block shape, the lock hole 7 is a rectangular hole, and the structures and shapes of the latch 6 and the lock hole 7 are adapted. The bottom end of the connecting rod 3 is in an arc plate shape, and the plate structure facilitates the rectangular block-shaped latch 6 to better support and squeeze its end, and facilitates the connecting rod 3 and the base 4 to be locked and fixed, and the arc structure facilitates the bottom end of the connecting rod 3 to slide on the track groove 81.

[0033] In this embodiment, a locking hole can be further provided at the bottom of the connecting rod 3, and the number and structure of the locking hole are adapted to the number and structure of the locking hole 7, and the two are used in combination; at this time, when the telescopic rod 5 drives the latch 6 to extend, the latch 6 can be driven to be inserted into the locking hole 7 and the locking hole in sequence, so that the connecting rod 3 and the base 4 are locked and fixed, so that the structure is more stable. At this time, the bottom of the connecting rod 3 can have any structure shape except the arc structure at the bottom.

[0034] In practical applications, the ro-ro ramp 1 and the driving device 2 are prior art and will not be described in detail.

[0035] The working principle of this embodiment is as follows: when the ro-ro ship needs to load and unload vehicles, the ramp 1 is driven by the driving device 2 to rotate and rise, and at this time the bottom end of the connecting rod 3 will slide on the track groove 81 in the base 4. After the bottom end of the connecting rod 3 slides to a suitable position, it is extended by the telescopic rod 5, and the driving pin 6 is inserted into the base 4 from the lock hole 7 and presses the bottom end of the connecting rod 3, so that the connecting rod 3 and the base 4 are locked and fixed. At this time, the connecting rod 3 can assist the driving device 2 to support the bottom of the ramp 1, and vehicles can pass and be stored on the ramp 1.

[0036] The beneficial effects of this embodiment are as follows: this device can replace the original driving device 2 as the final support in the working state of the ramp 1, and can assist in supporting the ramp 1, thereby effectively protecting the driving device 2, being safe and reliable, and greatly improving the service life of the entire ramp 1 equipment.

[0037] Embodiment 2

[0038] The difference between this embodiment and embodiment 1 is that the base 4 also includes an auxiliary plate 43, and the auxiliary plate 43 is arranged in parallel and spaced apart on the side of the first fixed plate 41, and an auxiliary hole is opened on the side of the auxiliary plate 43, and the auxiliary hole is aligned with the lock hole 7, and the number of the two is the same, and the pin 6 is sleeved in the auxiliary hole.

[0039] In this embodiment, the auxiliary plate 43 is in the shape of a strip plate as a whole, and may be consistent with the structural shape of the first fixing plate 41 or the second fixing plate 42 .

[0040] In this embodiment, the auxiliary plate 43 and the first fixed plate 41 are connected and fixed by a square rib plate 44, and a triangular rib plate 44 is fixed on the side of the auxiliary plate 43; thus, the structure is more stable.

[0041] In this embodiment, when the latch 6 is retracted from the lock hole 7 to release the connecting rod 3, the front end of the latch 6 is retracted into the auxiliary hole, that is, the latch 6 does not completely withdraw from the auxiliary plate 43. This can prevent the latch 6 from falling or tipping over (because the latch 6 or the lock hole 7 is at a certain height from the ground) and can also reduce the burden on the telescopic rod 5.

[0042] The beneficial effects of this embodiment are as follows: by providing the auxiliary plate 43 and the auxiliary hole, the block-shaped latch 6 can be easily erected to avoid falling or tipping over, and the extension and retraction guidance of the latch 6 can be facilitated, the structural design is more standardized and reasonable, and the structure is more stable.

[0043] Embodiment 3

[0044] The difference between this embodiment and implementation one is that the support device further includes a first travel switch and a second travel switch, both of which are arranged on the side of the first fixing plate 41 of the base 4, and the first travel switch and the second travel switch are respectively arranged at both ends of the pin 6.

[0045] In this embodiment, the support device also includes a control system, which is respectively connected to the telescopic rod 5, the first travel switch, and the second travel switch; this control system can be a master control system on the dock or in the operation room of the roll-on / roll-off ship, used to control the execution of actions by each power component.

[0046] In this embodiment, the control system controls the extension of the telescopic rod 5, drives the latch 6 to be inserted into the lock hole 7 (or drives the latch 6 to be inserted into the lock hole 7 and the locking hole in sequence), and after it is inserted to a certain position, the second travel switch monitors the position of the latch 6 and transmits a signal to the control system, and then the control system controls the telescopic rod 5 to stop moving, at which time the locking and fixing work of the connecting rod 3 and the base 4 is completed; the control system controls the retraction of the telescopic rod 5, drives the latch 6 to retract from the lock hole 7 (or drives the latch 6 to retract from the locking hole and the lock hole 7 in sequence), and after it is retracted to a certain position, the first travel switch monitors the position of the latch 6 and transmits a signal to the control system, and then the control system controls the telescopic rod 5 to stop moving, at which time the release work of the connecting rod 3 is completed.

[0047] The beneficial effects of this embodiment are as follows: by setting the first travel switch and the second travel switch, the device can clearly determine and control when the latch 6 is fully inserted or fully withdrawn, with a higher degree of automation, more precision and flexibility, and more convenient use.

[0048] Embodiment 4

[0049] like Figure 1-Figure 5As shown, the difference between this embodiment and embodiment 1 is that this embodiment provides a multi-station support device for the bottom of a roll-on / roll-off ship ramp, a connecting rod 3 is hinged on the roll-on / roll-off ship ramp 1, and the support device includes a base 4; the support device also includes a telescopic rod 5 and a latch 6, both of which are fixed, and both have at least two groups, and at least two locking holes 7 are provided on the base 4, one end of the connecting rod 3 is slidably arranged in the base 4, when one end of the connecting rod 3 slides to any locking hole 7, the telescopic rod 5 is extended to drive the latch 6 to be inserted into the base 4 from the locking hole 7 and to support and squeeze the connecting rod 3, so that the connecting rod 3 and the base 4 are locked and fixed.

[0050] In this embodiment, the multi-station support device is installed on the ground or the surface of any structural member, and a driving device 2 is provided on the ground of the dock to connect with the bottom of the roll-on / roll-off ramp 1; a connecting rod 3 is hinged on the roll-on / roll-off ramp 1, and the connecting rod 3 is located on the side of the driving device 2, and the two are respectively located at the left and right ends of the ramp 1, and the bottom end of the connecting rod 3 is slidably arranged in the base 4; the support device includes a base 4, a telescopic rod 5, and a latch 6; the base 4 is fixed on the ground, and the telescopic rod 5 and the latch 6 are both arranged on the same side of the base 4, the telescopic rod 5 is an electric cylinder, the protruding end of the telescopic rod 5 is fixed to the latch 6, and the bottom of the telescopic rod 5 is fixed to the ground through a mounting seat of any structure; two locking holes 7 are provided on the side of the base 4, and the support device is a double-station support device at this time; the locking hole 7 runs through the side of the base 4, and the number of the telescopic rod 5, the latch 6, and the locking hole 7 is consistent and the positions are arranged and adapted to each other, and the positions of the three are arranged in a right-facing and aligned manner. When the bottom end of the connecting rod 3 slides to any locking hole 7, the telescopic rod 5 extends out through the locking hole, driving the latch 6 to be inserted into the base 4 from the locking hole 7 and press the bottom end of the connecting rod 3, so that the connecting rod 3 and the base 4 are locked and fixed; in this way, the device can ensure that the ramp 1 can be supported when it is in two working positions at different angles, and finally realizes the passage and storage of vehicles of different heights, and has a wider range of applications.

[0051] In this embodiment, the base 4 includes a first fixing plate 41 and a second fixing plate 42, which have the same structure and are arranged parallel to each other and spaced apart. The two are fixed on the ground or the surface of any structural member, and the fixing method is arbitrary and can be welded; two lock holes 7 are respectively opened at both ends of the side surfaces of the first fixing plate 41 and the second fixing plate 42; the bottom end of the connecting rod 3 is slidably arranged between the first fixing plate 41 and the second fixing plate 42.

[0052] In this embodiment, the base 4 further includes a plurality of ribs 44, which are conventional structures, triangular plates or square plates, one end of which is welded and fixed to the first fixing plate 41 or the second fixing plate 42, and the other end is fixed to the ground, so as to enhance the structural stability.

[0053] In this embodiment, the support device further includes a guide rail 8, which is fixed between the first fixing plate 41 and the second fixing plate 42; the guide rail 8 is provided with a track groove 81, which is a U-shaped groove, and the bottom end of the connecting rod 3 is slidably arranged in the track groove 81. In this way, the bottom end of the connecting rod 3 can slide freely on the track groove 81, and the guide rail 8 or the track groove 81 can play a guiding and limiting role.

[0054] In this embodiment, a limit plate 9 is provided at the end of the guide rail 8, the limit plate 9 is tilted, and the limit plate 9 is fixed between the first fixed plate 41 and the second fixed plate 42. The limit plate 9 can be welded to the two fixed plates or to the guide rail 8. In this way, the limit position of the bottom end of the connecting rod 3 when sliding between the two fixed plates can be limited.

[0055] In this embodiment, the latch 6 is in a rectangular block shape, the lock hole 7 is a rectangular hole, and the structures and shapes of the latch 6 and the lock hole 7 are adapted. The bottom end of the connecting rod 3 is in an arc plate shape, and the plate structure facilitates the rectangular block-shaped latch 6 to better support and squeeze its end, and facilitates the connecting rod 3 and the base 4 to be locked and fixed, and the arc structure facilitates the bottom end of the connecting rod 3 to slide on the track groove 81.

[0056] In this embodiment, a locking hole can be further provided at the bottom of the connecting rod 3, and the number and structure of the locking hole are adapted to the number and structure of the locking hole 7, and the two are used in combination; at this time, when the telescopic rod 5 drives the latch 6 to extend, the latch 6 can be driven to be inserted into the locking hole 7 and the locking hole in sequence, so that the connecting rod 3 and the base 4 are locked and fixed, so that the structure is more stable. At this time, the bottom of the connecting rod 3 can have any structure shape except the arc structure at the bottom.

[0057] In practical applications, the device can also be expanded and designed according to the needs of the workstations, such as increasing the device to a support device for three workstations, that is, a structural design with three lock holes 7 is provided on the base 4. In this way, the support device can adapt to the ramp 1 of workstations with different angles to meet the needs of multiple workstations.

[0058] In practical applications, the ro-ro ramp 1 and the driving device 2 are prior art and will not be described in detail.

[0059] The working principle of this embodiment is as follows: when the ro-ro ship needs to load and unload vehicles, the ramp 1 is driven by the driving device 2 to rotate and rise, and at this time the bottom end of the connecting rod 3 will slide on the track groove 81 in the base 4. After the bottom end of the connecting rod 3 slides to a certain locking hole 7, the corresponding telescopic rod 5 is extended, and the driving pin 6 is inserted into the base 4 from the locking hole 7 and presses the bottom end of the connecting rod 3, so that the connecting rod 3 and the base 4 are locked and fixed; when the ramp 1 needs to be adjusted to different angles, it is only necessary to let the bottom end of the connecting rod 3 slide to the corresponding locking hole 7, and then perform the above-mentioned locking and fixing operation.

[0060] The beneficial effects of this embodiment are as follows: through the design of multiple lock holes 7 or multiple workstations, the roll-on / roll-off equipment with this device can set several working angles of the ramp 1 according to the different height requirements of vehicle loading, allowing different vehicles to pass and be stored, so that the roll-on / roll-off ship can load more types of vehicles; that is, the applicability of this device is stronger and the scope of use is wider.

[0061] The advantages of the utility model are as follows:

[0062] 1. It can replace the original driving device 2 as the final support in the working state of the ramp 1, and can assist in supporting the ramp 1, thereby effectively protecting the driving device 2, being safe and reliable, and greatly improving the service life of the entire ramp 1 equipment;

[0063] 2. It can ensure that the ramp 1 is supported when it is in working positions at different angles, that is, it can adapt to ramps 1 at different working angles and the passage and storage of vehicles of different heights, and has strong applicability;

[0064] 3. The overall structure is simple, easy to disassemble, manufacture and process, low cost, convenient and flexible to use.

[0065] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model shall be based on the protection scope of the claims.

Claims

1. A bottom support device for a ro-ro ramp, wherein a connecting rod (3) is hingedly connected to the ro-ro ramp (1), and the support device comprises a base (4), characterized in that: The supporting device further comprises a telescopic rod (5) and a latch (6), both of which are fixed and arranged on one side of the base (4). A locking hole (7) is arranged on the base (4). One end of the connecting rod (3) is slidably arranged in the base (4). The telescopic rod (5) is extended to drive the latch (6) to be inserted into the base (4) through the locking hole (7) and squeeze the connecting rod (3), so that the connecting rod (3) and the base (4) are locked and fixed.

2. The bottom support device for a ro-ro ship ramp according to claim 1, characterized in that: It also includes a guide rail (8), which is fixed in the base (4), and a track groove (81) is provided on the guide rail (8), and one end of the connecting rod (3) is slidably arranged in the track groove (81).

3. The bottom support device for a ro-ro ship ramp according to claim 1, characterized in that: The base (4) comprises a first fixing plate (41) and a second fixing plate (42), which are arranged in parallel and spaced apart, and each of which is provided with a locking hole (7). One end of the connecting rod (3) is slidably arranged between the first fixing plate (41) and the second fixing plate (42).

4. The bottom support device for a ro-ro ship ramp according to claim 2, characterized in that: A limiting plate (9) is provided at one end of the guide rail (8), and the limiting plate (9) is fixed inside the base (4).

5. The bottom support device for a ro-ro ship ramp according to claim 2, characterized in that: The latch pin (6) is in the shape of a rectangular block, the lock hole (7) is a rectangular hole, and the track groove (81) is a U-shaped groove.

6. The bottom support device for a ro-ro ship ramp according to claim 3, characterized in that: The base (4) further comprises an auxiliary plate (43), the auxiliary plate (43) being arranged in parallel and spaced relation to one side of the first fixing plate (41), the auxiliary plate (43) being provided with an auxiliary hole, the auxiliary hole being aligned with the lock hole (7), and the latch (6) being sleeved in the auxiliary hole.

7. The bottom support device for a ro-ro ship ramp according to claim 6, characterized in that: The base (4) further comprises a plurality of rib plates (44), wherein the rib plates (44) are respectively fixed to the first fixing plate (41), the second fixing plate (42), and the auxiliary plate (43).

8. The bottom support device for a ro-ro ship ramp according to claim 1, characterized in that: The number of the lock holes (7) is several, and the lock holes (7) are regularly arranged on the base (4). The number of the telescopic rods (5), the latch pins (6), and the lock holes (7) is the same.

9. The bottom support device for a ro-ro ship ramp according to claim 1, characterized in that: It also includes a first travel switch and a second travel switch, both of which are arranged on one side of the base (4), and the first travel switch and the second travel switch are respectively arranged at two ends of the latch (6).

10. The bottom support device for a ro-ro ship ramp according to claim 9, characterized in that: It also includes a control system, which is respectively connected to the telescopic rod (5), the first travel switch, and the second travel switch.

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