Rotating device for deck projection lamp of LNG (Liquefied Natural Gas) transport ship

Abstract

The utility model discloses an LNG transport ship deck projection lamp rotating device, and relates to the technical field of projection lamp rotating devices, the LNG transport ship deck projection lamp rotating device comprises a circular web plate, the upper side of the circular web plate is fixedly connected with a lower vertical circular pipe and a reinforcing toggle plate, the reinforcing toggle plate is fixedly connected with the lower vertical circular pipe, and the reinforcing toggle plate is fixedly connected with the lower vertical circular pipe. A rotating round pipe is arranged on the outer side of the lower vertical round pipe, a butterfly bolt penetrates through the interior of the rotating round pipe, an upper vertical round pipe is fixedly connected to the upper side of the rotating round pipe, an adjusting plate is fixedly connected to the upper side of the upper vertical round pipe, and a supporting plate is fixedly connected to the lower side of the adjusting plate; according to the anti-static and anti-sparkling device, static electricity diversion can be achieved through the physical mode that a grounding piece is grounded to a cable or a copper flat belt, and rubber materials are added between movable metal for isolation, so that the anti-static and anti-sparkling dual-function targets are achieved. The anti-static and anti-sparkling device has the advantages that the anti-static and anti-sparkling functions are achieved, and the anti-static and anti-sparkling functions are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of spotlight rotating devices, in particular to a spotlight rotating device for the deck of an LNG carrier. Background Technique

[0002] As an important energy source in the world, LNG has the characteristics of being volatile, flammable and explosive, and having a high calorific value of combustion. The storage and treatment environment ranges of LNG need to be defined as dangerous areas. Moreover, due to the volatile property, the extended range of the dangerous area is very large. Electrical equipment within the dangerous area range needs to be explosion-proof. At the same time, all metal rotating devices must fully consider static electricity diversion and risk prevention and control measures for the source of metal collision sparks.

[0003] LNG carriers are recognized as the ship type with the highest danger level in the shipbuilding industry. Particular attention should be paid to the prevention of various hazard sources during the design and use processes. The static electricity diversion and collision sparks of electrical equipment in the deck walkway area of the LNG cargo hold are one of the particularly high-risk hazard sources in the cargo hold area. Therefore, it is necessary to design a special spotlight base that can rotate flexibly, conduct static electricity to the ground, and has a non-metallic contact at the rotating contact interface. Content of the Utility Model

[0004] The purpose of the utility model is to provide a spotlight rotating device for the deck of an LNG carrier in view of the existing technical defects, so as to solve the problems raised in the above background technique.

[0005] To solve the above technical problems, the utility model provides the following technical solution: a spotlight rotating device for the deck of an LNG carrier, including a circular web, on the upper side of which are respectively fixedly connected a lower vertical circular tube and a reinforcing gusset plate. The reinforcing gusset plate is fixedly connected to the lower vertical circular tube. A rotating circular tube is arranged outside the lower vertical circular tube. A butterfly bolt penetrates through the inside of the rotating circular tube. An upper vertical circular tube is fixedly connected to the upper side of the rotating circular tube. An adjusting plate is fixedly connected to the upper side of the upper vertical circular tube. A supporting plate is fixedly connected to the lower side of the adjusting plate. A horizontal circular tube is fixedly connected to the lower side of the supporting plate. The horizontal circular tube is fixedly connected to the upper vertical circular tube.

[0006] The utility model further explains that grounding strips and wiring flat steels are fixedly connected to the outside of both the upper vertical circular tube and the lower vertical circular tube.

[0007] The utility model further explains that a detachable angle steel is fixedly connected to the right side of the upper vertical circular tube, and two U-shaped hoops are fixedly connected to the upper side of the detachable angle steel.

[0008] The utility model further explains that an insulating sheath made of vulcanized rubber material is arranged on the contact surface between the lower vertical circular tube and the rotating circular tube.

[0009] Further description of the utility model: The materials of the adjusting plate, support plate, horizontal circular tube, lower vertical circular tube, wire laying flat steel, strengthening gusset plate, circular web plate, upper vertical circular tube, rotating circular tube, and detachable angle steel are all metal Q235B.

[0010] Further description of the utility model: An arc-shaped screw hole is provided inside the adjusting plate, and a floodlight is bolted to the upper side of the arc-shaped screw hole.

[0011] Compared with the prior art, the beneficial effects achieved by the utility model are as follows: The utility model can achieve static electricity diversion by grounding the cable or copper flat tape through the grounding plate, and through the physical method of adding rubber materials to isolate between moving metals, achieving the dual functional objectives of anti-static and anti-spark;

[0012] By providing an adjusting plate and a rotating circular tube, floodlights of different models and sizes and the illumination working range of the floodlights can be adjusted arbitrarily. The overall structure of the upper floodlight base can be disassembled and carried easily. For example, in case of modification or maintenance and replacement needs in the later stage, the upper portable part can be disassembled and replaced without cutting the base. Similarly, in case of bad weather and sea conditions, the upper floodlight base structure and the floodlight as a whole can be transferred to a safe cabin for storage to avoid being washed away or lost by the waves;

[0013] By adding an insulating sheath made of vulcanized rubber between the lower vertical circular tube and the rotating circular tube, the metal contact part between the upper and lower bases is completely isolated, preventing the direct contact and collision of metal parts, thus eliminating the risk source of collision sparks. Description of the Drawings

[0014] The drawings are used to provide a further understanding of the utility model and constitute a part of the specification. They are used together with the embodiments of the utility model to explain the utility model, but do not constitute a limitation to the utility model. In the drawings:

[0015] Figure 1 is the overall structural schematic diagram of the utility model;

[0016] In the figure: 1, adjusting plate; 2, support plate; 3, horizontal circular tube; 4, lower vertical circular tube; 5, wire laying flat steel; 6, strengthening gusset plate; 7, circular web plate; 8, upper vertical circular tube; 9, U-shaped hoop; 10, detachable angle steel; 11, butterfly bolt; 12, rotating circular tube; 13, grounding plate. Detailed Embodiment

[0017] The technical solution of the present utility model will be further described in detail in conjunction with the preferred embodiments and their accompanying drawings in a non-limiting manner. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0018] Please refer to Figure 1 , the present utility model provides a technical solution: a rotating device for a deck floodlight of an LNG carrier, including a circular web 7. A lower vertical circular tube 4 and a reinforcing gusset 6 are respectively fixedly connected to the upper side of the circular web 7. The reinforcing gusset 6 is fixedly connected to the lower vertical circular tube 4. A rotating circular tube 12 is arranged outside the lower vertical circular tube 4. A butterfly bolt 11 penetrates through the inside of the rotating circular tube 12. An upper vertical circular tube 8 is fixedly connected to the upper side of the rotating circular tube 12. An adjusting plate 1 is fixedly connected to the upper side of the upper vertical circular tube 8. A support plate 2 is fixedly connected to the lower side of the adjusting plate 1. A horizontal circular tube 3 is fixedly connected to the lower side of the support plate 2. The horizontal circular tube 3 is fixedly connected to the upper vertical circular tube 8.

[0019] Grounding plates 13 and wiring flat steels 5 are fixedly connected to the outside of both the upper vertical circular tube 8 and the lower vertical circular tube 4. Electrostatic conduction can be achieved through a grounding cable or a copper flat strip on the grounding plate 13.

[0020] A detachable angle steel 10 is fixedly connected to the right side of the upper vertical circular tube 8. Two U-shaped clamps 9 are fixedly connected to the upper side of the detachable angle steel 10.

[0021] An insulating sheath made of vulcanized rubber is provided on the contact surface between the lower vertical circular tube 4 and the rotating circular tube 12, which completely isolates the metal contact parts and plays a role in preventing direct contact and collision of metal parts, thereby generating a risk source of collision sparks.

[0022] The materials of the adjusting plate 1, the support plate 2, the horizontal circular tube 3, the lower vertical circular tube 4, the wiring flat steel 5, the reinforcing gusset 6, the circular web 7, the upper vertical circular tube 8, the rotating circular tube 12, and the detachable angle steel 10 are all metal Q235B.

[0023] An arc-shaped screw hole is provided inside the adjusting plate 1. A floodlight is bolted to the upper side of the arc-shaped screw hole. The floodlight can rotate up to 60 degrees through the arc-shaped screw hole.

[0024] Working principle:

[0025] The adjustment of the lighting working area of the floodlight is achieved through two rotating components, namely the adjusting plate 1 and the rotating round tube 12. The adjusting plate 1 adopts an arc-shaped screw hole method. The self-provided bracket of the floodlight is connected to the adjusting plate 1 through the wing nut 11, and the rotation angle can reach 60 degrees. The rotating round tube 12 is a 114mm round tube sleeved on the lower vertical round tube 4 with a specification of 89mm, and is fixed by locking with the wing nut 11. When the rotating round tube 12 needs to be rotated, just loosen the wing nut 11. Among them, the rotating round tube 12 and the upper vertical round tube 8 are directly connected by welding. The relative rotation of the rotating round tube 12 and the lower vertical round tube 4 can reach 360 degrees. In order to conduct the static electricity of the floodlight electrical shell to the hull structural steel plate, the static electricity can be conducted through the grounding piece 13, the grounding cable or the copper flat belt. And because both the rotating round tube 12 and the lower vertical round tube 4 are made of metal materials, in the case of ship vibration or the push of wind and waves, it is very easy for the two metal materials to produce collision sparks. To avoid this risk, an insulating sheath is added to the contact surface of the rotating round tube 12 and the lower vertical round tube 4. The insulating sheath is made of vulcanized rubber material with seawater corrosion resistance, good flexibility and wear resistance. In some scenarios, the support base of the floodlight will be relatively high, and during the ship's navigation, the vibration of the floodlight will be very large. In order to make the design scheme universal, a detachable angle steel 10 and a U-shaped hoop 9 combined structure are specially added. This structure can add support according to the on-site situation or connect to the nearby handrail. By increasing the support points, the vibration of the floodlight can be reduced. Among them, the U-shaped hoop 9 is coated with PUC, which can effectively avoid the generation of sparks due to friction or collision between the U-shaped hoop and the nearby handrail.

[0026] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, 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 should not be construed as a limitation to the present invention.

[0027] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A LNG carrier deck floodlight rotating device, comprising a circular web (7), characterized in that: The upper side of the circular web (7) is respectively fixedly connected with a lower vertical circular tube (4) and a reinforcing elbow plate (6); the reinforcing elbow plate (6) is fixedly connected to the lower vertical circular tube (4); a rotating circular tube (12) is provided on the outer side of the lower vertical circular tube (4); a butterfly bolt (11) penetrates the interior of the rotating circular tube (12); the upper side of the rotating circular tube (12) is fixedly connected with an upper vertical circular tube (8); the upper side of the upper vertical circular tube (8) is fixedly connected with an adjusting plate (1); the lower side of the adjusting plate (1) is fixedly connected with a supporting plate (2); the lower side of the supporting plate (2) is fixedly connected with a transverse circular tube (3); the transverse circular tube (3) is fixedly connected to the upper vertical circular tube (8).

2. The LNG carrier deck floodlight rotating device according to claim 1, characterized in that: The outer sides of the upper vertical circular tube (8) and the lower vertical circular tube (4) are both fixedly connected with a grounding sheet (13) and a wire laying flat steel (5).

3. The LNG carrier deck floodlight rotating device according to claim 2, characterized in that: A detachable angle steel (10) is fixedly connected to the right side of the upper vertical circular tube (8), and two U-shaped clamps (9) are fixedly connected to the upper side of the detachable angle steel (10).

4. The LNG carrier deck floodlight rotating device according to claim 3 is characterized in that: The contact surfaces of the lower vertical circular tube (4) and the rotating circular tube (12) are provided with an insulating sheath made of vulcanized rubber.

5. The LNG carrier deck floodlight rotating device according to claim 4, characterized in that: The adjustment plate (1), the support plate (2), the horizontal circular tube (3), the lower vertical circular tube (4), the wire laying flat steel (5), the reinforcing elbow plate (6), the circular web plate (7), the upper vertical circular tube (8), the rotating circular tube (12), and the detachable angle steel (10) are all made of metal Q235B.

6. The LNG carrier deck floodlight rotating device according to claim 5, characterized in that: An arc-shaped screw hole is provided inside the adjustment plate (1), and a floodlight is bolted to the upper side of the arc-shaped screw hole.

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