Detachable manually-operated small suspender

Abstract

The detachable manually-operated small suspender comprises a main shaft, the main shaft is sleeved with a connecting sleeve, a main suspender body is arranged on the sleeve, and an upper support and a lower support which are used for connection and fixation are arranged at the upper end and the lower end of the main shaft respectively; the main lifting rod comprises a main lifting arm and a supporting rod used for supporting the main lifting arm, one end of the main lifting arm is connected with the sleeve, the other end of the main lifting arm is provided with a lifting hook eye ring and a pull lock eye ring, the lifting hook eye ring is used for being connected with a chain block, and the pull lock eye ring is used for being connected with a steel cable. The problem that sailors have to go in and out of the cabins for many times to fetch objects through a vertical ladder in reality is solved, the objects can be fetched conveniently and rapidly among different void cabins without arranging a watertight hydraulic sliding door on each watertight cabin wall among the void cabins of the ship, manual load-bearing operation can be effectively reduced, and the ship can be taken out conveniently and rapidly even under the high sea condition. And the working efficiency and the safety of operators can also be improved. The device is simple in structure and convenient to manufacture.

Description

Technical Field

[0001] The invention relates to the design, arrangement and installation of a detachable manually operated small suspension rod, belonging to the technical field of ship supporting devices. Background Art

[0002] Super large trailing suction dredgers are generally equipped with a bow living building, a stern engine room, and a mud tank with a large opening in the middle. There are multiple buoyancy voids on both sides of the mud tank section. The deck height of these voids is generally about 4 meters. There are watertight bulkheads between each adjacent buoyancy void. Figure 1 As shown. In order to make full use of the space here, the owner often sets up steel shelves to store sundries or deck tools. Usually, a hanging hole is set in the open position of the main deck, and a steel ladder leading to the empty cabin is set under the hanging hole cover. Every time the deck workers go to the cabin to get something, they must open the hanging hole cover, climb in through the ladder, and then climb out with the heavy objects by the ladder, which is time-consuming and laborious and poses a safety hazard; if the entrance and exit are set in the stairway of the bow living building or the aft engine room, watertight hydraulic sliding doors have to be installed on each watertight bulkhead between the empty cabins for passage, which not only increases the construction cost but also takes a lot of time and effort.

[0003] In order to reduce manual load-bearing operations and improve the work efficiency and safety of operators even under high sea conditions, it is urgent to provide a new solution and tool with good social and economic benefits. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a solution and device that can achieve fast and safe results even under high sea conditions, by designing a low-cost detachable manually operated small boom to achieve convenient and quick retrieval between different empty compartments.

[0005] In order to solve the above problems, the technical solution of the present invention provides a detachable manually operated small boom, which includes a main shaft, a connecting sleeve is provided on the outer sleeve of the main shaft, a main boom is provided on the sleeve, and the upper and lower ends of the main shaft are respectively provided with an upper support and a lower support for connection and fixation; the main boom includes a main boom and a strut for supporting the main boom, one end of the main boom is connected to the sleeve, and the other end is provided with a hook eye and a zipper eye, the hook eye is used to connect a hand winch, and the zipper eye is used to connect a steel cable.

[0006] Preferably, the main boom, the support rod and the connecting pipe are in a triangular truss structure.

[0007] Preferably, the upper support includes an upper bearing body for limiting the sleeve, an upper bushing is provided between the upper bearing body and the main shaft, the upper bushing and the upper bearing body are connected to the main shaft through an oil cup; an upper support plate is provided above the upper bearing body, and a nut is provided on the upper part of the upper support plate.

[0008] More preferably, an adjusting washer is provided between the upper support plate and the upper bearing body; a washer is provided on the upper and lower sides of the upper support plate respectively; and a lifting eye screw is provided on the top of the main shaft.

[0009] More preferably, the lower support includes a lower bearing body for limiting the sleeve, a lower bushing is provided between the lower bearing body and the main shaft, the lower bushing and the lower bearing body are connected to the main shaft through an oil cup, and a one-way thrust bearing is provided under the lower bushing; the bottom end of the main shaft is fixed to the lower support plate through a lower bearing seat.

[0010] More preferably, the upper support plate is connected to the reinforced elbow plate panel one, the lower support plate is connected to the reinforced elbow plate panel two, the reinforced elbow plate panel one and the reinforced elbow plate panel two are arranged on the reinforced elbow plate, and the reinforced elbow plate is fixed between the splash guard plate, the splash guard top plate and the deck.

[0011] More preferably, a splash guard horizontal girder is provided at the connection between the second reinforcing rib plate panel and the lower rib plate.

[0012] More preferably, a reinforcing rib plate is provided between the horizontal girder of the splash guard plate and the second reinforcing bracket panel.

[0013] Preferably, the hook eyelet is arranged below the main boom, and a cable eyelet is respectively arranged on both sides of the main boom, and the zipper eyelet is respectively connected to a steel cable, and the other end of the steel cable is wound around the horn.

[0014] Preferably, the small boom also includes a slot-shaped bracket for accommodating the main boom.

[0015] The invention discloses a detachable manual small suspension rod installed on a splashproof coaming of a mud tank hatch, with a lifting capacity of 500 kg. The rod can be fixed on the coaming and tied firmly when not in use.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The small hoisting rod of the present invention can conveniently and quickly hoist the articles in the cabin to the deck surface by using the main hoisting rod and the main shaft, and the crew does not need to go in and out of the cabin for many times to take out the articles by using the straight ladder, thereby effectively improving the operation efficiency and increasing the safety.

[0018] According to local conditions, the upper and lower supports of the small boom of the present invention can be flexibly rotated, and the boom can be stored by utilizing the splash-proof enclosure structure, which does not occupy the deck area and does not affect the passage of personnel.

[0019] The small suspension rod of the present invention adopts a steel tube truss design, has a simple structure and is easy to manufacture.

[0020] The small suspension rod of the present invention is detachable, and the main suspension rod and the main shaft are connected with the upper and lower support plate nuts, which is convenient for disassembly, assembly and displacement, and can be used for hanging and placing articles at different empty hatches, without the need to set a watertight hydraulic sliding door on each watertight bulkhead between empty cabins for passing and transporting articles.

[0021] The small boom of the present invention does not need to be ordered from a professional manufacturer, and the shipyard can manufacture it according to the drawing, thereby saving costs and improving progress. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the overall arrangement of the small suspension rod provided by the present invention;

[0023] Figure 2 A schematic diagram of the structure of the small suspension rod provided by the present invention;

[0024] Figure 3 A top view of the small suspension rod provided by the present invention in different states;

[0025] Figure 4 for Figure 3 Sectional view of the AA plane;

[0026] Figure 5 is a cross-sectional view of the upper support;

[0027] Figure 6 This is a cross-sectional view of the lower support. DETAILED DESCRIPTION

[0028] In order to make the present invention more clearly understood, preferred embodiments are described in detail below with reference to the accompanying drawings.

[0029] Example

[0030] like Figure 1-6 As shown, a small boom 1 provided by the present invention for the hatch coaming of an open deck of a certain type of self-propelled super-large trailing suction dredger includes a main shaft 5, a connecting sleeve 4 is provided on the main shaft 5, and a main boom is provided on the sleeve 4. The upper and lower ends of the main shaft 5 are respectively provided with an upper support and a lower support for connection and fixing; the main boom includes a main boom 2 and a support rod 3 for supporting the main boom 2, one end of the main boom 2 is connected to the sleeve 4, and the other end is provided with a hook eye 21 and a zipper eye 19, the hook eye 21 is used to connect a hand chain hoist 22 with a load of 500 kg, and the zipper eye 19 is used to connect a steel cable 20. The hook eye 21 is provided below the main boom 2, and a cable eye 19 is provided on both sides of the main boom 2, and the zipper eye 19 is respectively connected to a steel cable 20, and the other end of the steel cable 20 is wound around the horn 24.

[0031] The main boom 2, the support rod 3 and the connecting pipe 5 are in a triangular truss structure. The lifting angle α of the main boom 2 can be adjusted according to the height of the lifted cargo.

[0032] The main shaft 5 is a No. 45 round steel with an internal and external thread on the upper end. The main shaft 5 passes through the connecting sleeve 4 through the eye screw 17 on the top and is threadedly connected with the upper support and the lower support.

[0033] The upper support includes an upper bearing body 9 for limiting the sleeve 4, an upper bushing 10 is provided between the upper bearing body 9 and the main shaft 5, and the upper bushing 10 and the upper bearing body 9 are connected to the main shaft 5 through an oil cup 11; an upper support plate 6 is provided above the upper bearing body 9, and a nut 7 is provided on the upper part of the upper support plate 6. An adjustment washer 8 is provided between the upper support plate 6 and the upper bearing body 9; a washer 25 is provided on the upper and lower sides of the upper support plate 6; and a lifting eye screw 17 is provided on the top of the main shaft 5.

[0034] The lower support includes a lower bearing body 12 for limiting the sleeve 4, a lower bushing 13 is provided between the lower bearing body 12 and the main shaft 5, the lower bushing 13 and the lower bearing body 9 are connected to the main shaft 5 through an oil cup 11, and a one-way thrust bearing 14 is provided below the lower bushing 13; the bottom end of the main shaft 5 is fixed to the lower support plate 16 through the lower bearing seat 15.

[0035] The upper support plate 6 is connected to the reinforced bracket panel 102, and the lower support plate 16 is connected to the reinforced bracket panel 2 103. The reinforced bracket panel 102 and the reinforced bracket panel 2 103 are arranged on the reinforced bracket 105, and the reinforced bracket 105 is fixed between the splash guard plate 106, the splash guard top plate 107, and the deck 101. The connection between the reinforced rib panel 2 103 and the lower rib plate 16 is provided with a splash guard horizontal girder 104. In order to bear the component force of the vertical force of the suspension rod acting on the lower support plate 16, a reinforced rib plate 18 is installed on the splash guard horizontal girder 104 for corresponding structural reinforcement. The upper support plate 6 and the lower support plate 16 can be adjusted according to the height of the splash guard plate 106 and the height of the splash guard horizontal girder 104.

[0036] A groove-shaped bracket 23 for accommodating the main boom 2 is also provided on the reinforced bracket panel 102 .

[0037] All fixed connections in the above structure are welded, and the welding method is continuous deep penetration welding or full penetration welding.

[0038] The small boom 1 does not occupy the passage area on both sides of the main deck. It can be installed above different empty tanks as needed, such as Figure 1 Positions Ⅰ, Ⅱ, Ⅲ in the middle.

[0039] Figure 3 The top view of the small boom 1 in the storage and working state reflects the working and storage state of the small boom in this embodiment. In the working state, the heavy object is lifted out of the lifting cover 100 by the hand chain hoist 22, the steel cable 20 is pulled to turn, the heavy object is moved to the open space on the deck 101, and the lifting cover 101 is closed; the steel cable 20 is pulled to turn, the small boom 1 is turned to the storage state, the main boom 2 is clamped into the groove bracket 23, and finally the steel cable 20 is fastened to the horn 24, which does not affect the walking of people in the deck 101 passage.

[0040] In summary, the present invention can effectively reduce manual load-bearing operations, and can improve the work efficiency and safety of operators even under higher sea conditions; compared with the existing in-cabin cargo-picking technology, the present invention is simple to manufacture, easy to operate, has a large lifting load, and is detachable. There is no need to set a watertight hydraulic sliding door on each watertight bulkhead between empty cabins, so the purpose of convenient and quick retrieval in different empty cabins can be achieved, and it has good social and economic benefits.

Claims

1. A detachable manually operated small boom, characterized in that: The invention comprises a main shaft (5), the main shaft (5) is provided with a connecting sleeve (4) on its outer sleeve, a main suspension rod is provided on the sleeve (4), and the upper and lower ends of the main shaft (5) are respectively provided with an upper support and a lower support for connection and fixing; the main suspension rod comprises a main suspension arm (2) and a support rod (3) for supporting the main suspension arm (2); one end of the main suspension arm (2) is connected to the sleeve (4), and the other end is provided with a hook eyelet (21) and a zipper eyelet (19); the hook eyelet (21) is used to connect a hand winch (22), and the zipper eyelet (19) is used to connect a steel cable (20).

2. The detachable manually operated small suspension rod as claimed in claim 1, characterized in that: The main boom (2), the support rod (3) and the connecting pipe (5) are in a triangular truss structure.

3. The detachable manually operated small suspension rod as claimed in claim 1, characterized in that: The upper support comprises an upper bearing body (9) for limiting the sleeve (4); an upper bushing (10) is provided between the upper bearing body (9) and the main shaft (5); the upper bushing (10) and the upper bearing body (9) are connected to the main shaft (5) via an oil cup (11); an upper support plate (6) is provided above the upper bearing body (9); a nut (7) is provided on the upper part of the upper support plate (6).

4. The detachable manually operated small suspension rod as claimed in claim 3, characterized in that: An adjusting washer (8) is provided between the upper support plate (6) and the upper bearing body (9); a washer (25) is provided on the upper and lower sides of the upper support plate (6); and a lifting eye screw (17) is provided on the top of the main shaft (5).

5. The detachable manually operated small suspension rod as claimed in claim 4, characterized in that: The lower support comprises a lower bearing body (12) for limiting the sleeve (4); a lower bushing (13) is provided between the lower bearing body (12) and the main shaft (5); the lower bushing (13) and the lower bearing body (9) are connected to the main shaft (5) through an oil cup (11); a one-way thrust bearing (14) is provided below the lower bushing (13); and the bottom end of the main shaft (5) is fixed to a lower support plate (16) through a lower bearing seat (15).

6. The detachable manually operated small suspension rod as claimed in claim 5, characterized in that: The upper support plate (6) is connected to the reinforced bracket panel 1 (102), the lower support plate (16) is connected to the reinforced bracket panel 2 (103), the reinforced bracket panel 1 (102) and the reinforced bracket panel 2 (103) are arranged on the reinforced bracket (105), and the reinforced bracket (105) is fixed between the splash guard plate (106), the splash guard top plate (107) and the deck (101).

7. The detachable manually operated small suspension rod as claimed in claim 6, characterized in that: A splash-proof enclosure horizontal girder (104) is provided at the connection between the second reinforcing rib plate panel (103) and the lower rib plate (16).

8. The detachable manually operated small suspension rod as claimed in claim 7, characterized in that: A reinforcing rib plate (18) is provided between the splash guard plate horizontal girder (104) and the second reinforcing bracket panel (103).

9. The detachable manually operated small suspension rod as claimed in claim 1, characterized in that: The hook eyelet (21) is arranged below the main boom (2), and a cable eyelet (19) is respectively arranged on both sides of the main boom (2). The zipper eyelet (19) is respectively connected to a steel cable (20), and the other end of the steel cable (20) is wound around the horn (24).

10. The detachable manually operated small suspension rod according to any one of claims 1 to 9, characterized in that: It also includes a slot-shaped bracket (23) for accommodating the main boom (2).

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