Inspection ship for inspecting ship lift platform connecting bolts

Abstract

The utility model discloses a polling ship for polling ship lift platform connecting bolts, which comprises a ship body, a mounting plate is fixed on the ship body, two lifting rod groups are arranged in the mounting plate, and each lifting rod group comprises a plurality of X-shaped diagonal bracings; the top ends of one set of parallel supporting rods of the two diagonal bracings on the topmost layer are rotationally connected with one side of the bottom of the lifting table, a horizontal through groove is formed in the other side of the bottom of the lifting table, and a transverse pull rod at the top ends of the other set of parallel supporting rods slides in the horizontal through groove. The connection mode of the bottommost cross bridging and the mounting disc is the same as the connection mode of the topmost cross bridging and the mounting disc; and the horizontal hydraulic oil cylinder is arranged in the mounting disc. The device is simple in structure, the height of the lifting platform can be rapidly adjusted to adapt to sea level lifting brought by tides, meanwhile, the working face integrally covered by the device is effectively lifted through the movable table, the stability of the lifting platform is effectively improved, the safety of inspection personnel is ensured, the ship moving frequency is reduced, and the working time is further prolonged.

Description

Technical Field

[0001] The utility model relates to the field of ship repair equipment, in particular to an inspection boat used for inspecting connecting bolts of a ship lift platform. Background Art

[0002] As an important equipment for shipbuilding in modern shipyards, the ship lift plays an important role in improving the turnover rate of the slipway and reducing costs. When a ship needs to be repaired, the ship lift platform (hereinafter referred to as the platform) is immersed in water, and the ship lift is driven above the ship lift platform. The ship lift lifts the ship to be repaired out of the water, and then transfers it to the dry berth by the transfer system for repair work. When the ship is repaired or manufactured, the launching method is the opposite of the previous method.

[0003] According to the requirements, it is generally necessary to conduct an inspection of the connection bolts of the entire ship lift platform about once every six months. If any problematic bolts are found, they can be replaced or rectified. In a certain project, the height from the sea level to the bottom of the platform main beam is 1 meter, and there is a height difference of about 3 meters from the bottom of the main beam to the platform docking bolt position. Therefore, it is necessary to consider the short operating window period when the maintenance ship enters due to the influence of the tide, and whether the inspection personnel will be locked in the confined space under the platform after the operation. At the same time, ordinary maintenance ships are monohulls with insufficient stability. When maintenance personnel climb to work, there is a risk of capsizing. Under current technical conditions, the conventional maintenance method is to build a temporary scaffolding channel platform, which is difficult to set up and dismantle.

[0004] Due to the structural limitations of the ship lift platform, how patrol personnel can quickly and safely enter, reach the bolt connection position, and quickly move between the platform joints while requiring lifting operations is a difficult problem currently faced by patrol personnel.

[0005] To this end, an inspection boat for inspecting the connecting bolts of a ship lift platform is proposed to solve the above technical problems. Utility Model Content

[0006] The technical problem solved by the utility model is that in the prior art, due to the short operation window period, the insufficient stability of the ship leading to capsizing, and the high freeboard of ordinary maintenance ships, it is impossible to exit after entering, resulting in the risk of inspectors being trapped in the enclosed space under the platform, and the problem that when conventional scaffolding channels are used, it is difficult to dismantle, the span is long, the construction near the water is difficult, and it is impossible to walk and move freely between spans.

[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is as follows: an inspection boat for inspecting the connecting bolts of a ship lift platform, comprising a hull, a mounting plate fixed on the hull, two sets of mutually parallel lifting rod groups are arranged in the mounting plate, and the lifting rod group includes a plurality of X-shaped scissor struts arranged vertically and hinged to each other through transverse tie rods; the top of a group of parallel struts of the two scissor struts on the top layer is hinged to one side of the bottom of the lifting platform, and a horizontal through groove is provided on the other side of the bottom of the lifting platform, and the transverse tie rod at the top of the other group of parallel struts slides in the horizontal through groove; the connection method of the bottom layer of the scissor struts and the mounting plate is the same as the connection method of the top layer of the scissor struts and the mounting plate; and also includes a horizontal hydraulic cylinder arranged in the mounting plate for pushing the sliding end of the bottom layer of the scissor struts to slide;

[0008] The upper surface of the lifting platform also has two parallel strip-shaped mounting seats protruding upward, and the facing surfaces of the two mounting seats are each provided with a horizontal mounting groove; it also includes a movable platform, and the two sides of the movable platform have plug-in parts protruding outward, and the plug-in parts are inserted into the mounting grooves.

[0009] Particularly, a downwardly recessed cabin is provided on the upper surface of the hull, and the mounting plate is arranged at the bottom of the cabin.

[0010] Particularly, a transverse screw hole is provided on the outer surface of the mounting seat, and a locking bolt for locking the plug-in portion is provided in the transverse screw hole.

[0011] Particularly, the upper surfaces of the lifting platform and the movable platform are provided with guardrails.

[0012] In particular, the vertical bars and the horizontal bars of the guardrail and the vertical bars and the hull are hinged, and also include a square sleeve connected to the horizontal bar of the guardrail of the lifting platform. When the guardrails of the lifting platform and the movable platform are in an upright state, the transverse pin passes horizontally through the square sleeve and is inserted into the end of the horizontal bar of the guardrail of the movable platform to lock the guardrail.

[0013] In particular, it also includes a lifting cylinder arranged on the upper surface of the hull, and both ends of the lifting cylinder are respectively hinged to the mounting plate and the lifting platform.

[0014] Compared with the prior art, the utility model has the following advantages and beneficial effects: the utility model device adopts the form of scissor brace, which is controlled by electro-hydraulic to extend and retract, and can quickly and accurately adjust the platform height to adapt to the change of water level caused by tide, and can also retract the lifting platform and scissor brace below the deck panel of the hull, effectively reducing the overall height of the hull, so that it can move normally from directly below the main beam of the ship lift platform, avoiding the problem that some ships can only operate at low tide, so that the inspection operation is not affected by the tide level. At the same time, by dividing the maintenance platform into a lifting platform and a movable platform, the operating range can be effectively expanded through the movable platform, and the number of ship movements can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model.

[0016] Figure 2 This is a schematic diagram of the scissors support and lifting platform structure.

[0017] Figure 3 It is a schematic diagram of the connection relationship between the movable platform and the lifting platform.

[0018] Figure 4 It is a schematic diagram of the connection relationship between the square sleeve and the horizontal pin.

[0019] The meanings of the numbers in the figure are: hull—1; mounting plate—2; scissor brace—3; lifting platform—4; horizontal through groove—5; horizontal tie rod—6; horizontal hydraulic cylinder—7; mounting seat—8; horizontal mounting groove—9; movable platform—10; plug-in part—11; cabin—12; locking bolt—13; guardrail—14; lifting cylinder—15; square sleeve—16; horizontal latch—17. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the accompanying drawings in the embodiments of the utility model, so as to have a further understanding of the concept of the utility model, the technical problems solved, the technical features constituting the technical solutions and the technical effects brought about.

[0021] like Figure 1~Figure 2 As shown, the utility model is an inspection boat for inspecting the connecting bolts of a ship lift platform, comprising a hull 1, a mounting plate 2 being fixed on the hull 1, two sets of mutually parallel lifting rod groups being arranged in the mounting plate 2, the lifting rod groups comprising a plurality of X-shaped scissor struts 3 which are arranged vertically and hinged to each other through a transverse tie rod 6; the top ends of a group of parallel struts of the two scissor struts 3 on the top layer are hinged to one side of the bottom of a lifting platform 4, a horizontal through groove 5 is provided on the other side of the bottom of the lifting platform 4, and the transverse tie rod 6 at the top end of the other group of parallel struts slides in the horizontal through groove 5; the connection mode of the bottom layer of the scissor struts 3 and the mounting plate 2 is the same as the connection mode of the top layer of the scissor struts 3 and the mounting plate 2; and also comprising a horizontal hydraulic cylinder 7 arranged in the mounting plate 2 for pushing the sliding end of the bottom layer of the scissor struts 3 to slide.

[0022] like Figure 3 As shown, the upper surface of the lifting platform 4 also has two parallel strip-shaped mounting seats 8 protruding upward, and the facing surfaces of the two mounting seats 8 are each provided with a horizontal mounting groove 9; it also includes a movable platform 10, and the two sides of the movable platform 10 have plug-in parts 11 protruding outward, and the plug-in parts 11 are inserted into the horizontal mounting grooves 9.

[0023] In the utility model, the hull 1 serves as the main load-bearing platform for inspecting ships, which bears the load of the lifting platform 4 and maintains its stability during operation. During the actual inspection operation, the lifting platform 4 is retracted to the lowest position, and the hull 1 directly passes through the main beam of the ship lift platform from the end of the ship lift basin to reach the position where the bolts need to be inspected. Since the lifting platform 4 on the top of the hull 1 is in a retracted state as a whole, it can pass under the main beam and turn around at will, so as to safely enter the belly of the ship lift platform, avoiding the situation where it is impossible to enter or collide with the main beam after entering when the water level changes due to the tide. After the inspection personnel enter the lifting platform 4, they adjust the length of the movable platform 10 outside the lifting platform 4 according to the actual inspection situation, thereby effectively extending the coverage area of ​​the movable platform 4. Through the horizontal hydraulic cylinder 7, the height of the lifting platform 4 can be controlled according to the actual tidal situation, which is convenient for inspecting the connecting bolts of the seams of the ship lift platform.

[0024] As a preferred embodiment, a downwardly recessed cabin 12 is provided on the upper surface of the hull 1 , and the mounting plate 2 is arranged at the bottom of the cabin 12 .

[0025] In this embodiment, a downwardly recessed cabin 12 is provided on the hull 1, so that the scissor support 3 and the mounting plate 2 can be mostly or completely accommodated in the cabin 12 in the retracted state, thereby effectively reducing the space occupied by the utility model device in the vertical direction.

[0026] As a preferred embodiment, a transverse screw hole is provided on the outer surface of the mounting seat 8 , and a locking bolt 13 for locking the plug-in portion 11 is provided in the transverse screw hole.

[0027] This embodiment provides a specific structure for locking the movable platform 10 , by horizontally inserting the locking bolt 13 into the transverse screw hole and pressing against the plug-in portion 11 , thereby fixing the movable platform 10 on the lifting platform 4 to prevent the movable platform 10 from sliding.

[0028] As a preferred embodiment, the upper surfaces of the lifting platform 4 and the movable platform 10 are both provided with guardrails 14 .

[0029] In this embodiment, the guardrail 14 prevents the inspectors from falling during the inspection process, thus playing a protective role to a certain extent.

[0030] As a preferred embodiment, the vertical bars and the horizontal bars of the guardrail 14 and the vertical bars and the hull 1 are hinged, and also include a square sleeve 16 on the horizontal bar of the guardrail 14 connected to the lifting platform 14. When the guardrails 14 of the lifting platform 4 and the movable platform 10 are in an upright state, the transverse pin 17 horizontally passes through the square sleeve 16 and is inserted into the end of the horizontal bar of the guardrail 14 of the movable platform 10 to lock the guardrail 14.

[0031] In this embodiment, if Figure 4As shown, a specific structure of the guardrail 14 is provided. When it is necessary to store, the horizontal pin is removed to separate the horizontal bar of the guardrail 14 of the lifting platform 4 from the horizontal bar of the guardrail 14 of the movable platform 10, so that the two can be tilted down separately, which is convenient for lowering the height. When the guardrail 14 needs to be erected, the vertical bars of the guardrail 14 of the lifting platform 4 and the movable platform 10 are erected respectively, and after the square sleeve 16 is aligned with the horizontal bar of the guardrail 14 of the movable platform 10, the horizontal pin 17 is inserted horizontally, so that the two become a connecting rod structure, thereby ensuring that the guardrail 14 as a whole will not tilt down, and play a protective role.

[0032] As a preferred embodiment, it further comprises a lifting cylinder 15 arranged on the upper surface of the hull 1, and both ends of the lifting cylinder 15 are hinged to the mounting plate 2 and the lifting platform 4 respectively.

[0033] In this embodiment, by arranging a lifting cylinder 15 on the surface of the hull 1, it can cooperate with the scissor strut 3 to jointly support the lifting and lowering of the lifting platform 4, effectively improving the stability of the lifting platform 4 during the lifting and fixing process, and preventing the lifting platform 4 or the movable platform 10 from shaking.

[0034] The words “connection” and “fixation” appearing in the description of the present invention may refer to fixed connection, processing and forming, welding, or mechanical connection. The specific meanings of the above terms in the present invention shall be understood according to the specific circumstances.

[0035] In the description of the present invention, the terms "center", "upper", "lower", "horizontal", "inner", "outer", etc., which indicate the orientation or position relationship, are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying a specific orientation that the device or element referred to must have, and therefore cannot be understood as a limitation on the present invention.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. An inspection boat for inspecting the connection bolts of a ship lift platform, characterized in that: The invention comprises a hull (1), a mounting plate (2) being fixed on the hull (1), two sets of mutually parallel lifting rod groups being arranged in the mounting plate (2), the lifting rod groups comprising a plurality of X-shaped scissor struts (3) arranged vertically and hinged to each other via a cross tie rod (6); the top ends of a set of parallel struts of the two scissor struts (3) at the top are hinged to one side of the bottom of a lifting platform (4), a horizontal through groove (5) is arranged at the other side of the bottom of the lifting platform (4), and the cross tie rod (6) at the top end of the other set of parallel struts slides in the horizontal through groove (5); the connection mode between the bottom scissor struts (3) and the mounting plate (2) is the same as the connection mode between the top scissor struts (3) and the mounting plate (2); and the invention also comprises a horizontal hydraulic cylinder (7) arranged in the mounting plate (2) and used for pushing the sliding end of the bottom scissor struts (3) to slide; The upper surface of the lifting platform (4) further has two parallel strip-shaped mounting seats (8) protruding upwards, and the facing surfaces of the two mounting seats (8) are each provided with a horizontal mounting groove (9); and the lifting platform (10) further includes a movable platform (10), and the movable platform (10) has plug-in portions (11) protruding outwards on both sides, and the plug-in portions (11) are inserted into the horizontal mounting grooves (9).

2. The inspection boat for inspecting the connection bolts of a ship lift platform according to claim 1, characterized in that: The upper surface of the hull (1) is provided with a downwardly recessed cabin (12), and the mounting plate (2) is arranged at the bottom of the cabin (12).

3. The inspection boat for inspecting the connection bolts of a ship lift platform according to claim 1, characterized in that: The outer surface of the mounting seat (8) is provided with a transverse screw hole, and a locking bolt (13) for locking the plug-in portion (11) is provided in the transverse screw hole.

4. The inspection boat for inspecting the connection bolts of a ship lift platform according to claim 1, characterized in that: The upper surfaces of the lifting platform (4) and the movable platform (10) are both provided with guardrails (14).

5. The inspection boat for inspecting the connection bolts of a ship lift platform according to claim 4, characterized in that: The guardrail (14) is hinged between the vertical rod and the horizontal rod, and between the vertical rod and the hull (1), and also includes a square sleeve (16) connected to the horizontal rod of the guardrail (14) of the lifting platform (4). When the guardrails (14) of the lifting platform (4) and the movable platform (10) are both in an upright state, a transverse latch (17) passes horizontally through the square sleeve (16) and is inserted into the end of the horizontal rod of the guardrail (14) of the movable platform (10), thereby locking the guardrail (14).

6. The inspection boat for inspecting the connection bolts of a ship lift platform according to claim 1, characterized in that: It also includes a lifting cylinder (15) arranged on the upper surface of the hull (1), wherein both ends of the lifting cylinder (15) are respectively hinged to the mounting plate (2) and the lifting platform (4).

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