CN216921966U

CN216921966U - Stealthy shielding roller shutter device

Info

Publication number: CN216921966U
Application number: CN202220010306.5U
Authority: CN
Inventors: 赵卫兴; 李曙刚; 范建涛; 盛文星
Original assignee: Jiangsu Jixin Ship Equipment Co ltd
Current assignee: Jiangsu Jixin Ship Equipment Co ltd
Priority date: 2022-01-05
Filing date: 2022-01-05
Publication date: 2022-07-08
Anticipated expiration: 2032-01-05

Abstract

The utility model relates to a stealthy shielding roller shutter device, which comprises a driving mechanism and a roller shutter mechanism; the driving mechanism comprises a supporting plate, a motor, a first transmission chain wheel, a second transmission chain wheel and a first chain; the supporting plate is fixed at the upper end of one side of the opening; the first transmission chain wheel is rotationally connected with the supporting plate, and the second transmission chain wheel is fixed on the outer side of the first transmission chain wheel; the rolling mechanism comprises a transverse bracket, a main shaft, a shielding net and two side rails; the main shaft is horizontally and rotatably arranged on the transverse support, one end of the main shaft is connected with a second chain, one end of the second chain is sleeved on the second transmission chain wheel, and the other end of the second chain is connected to one end of the main shaft; the two side rails are vertically fixed on the outer side of the opening; the shielding net is wound on the main shaft; a plurality of first pulleys are arranged on two sides of the shielding net. The net size of the opening is unchanged, and the inlet and outlet of the sea repair equipment are not influenced.

Description

Stealthy shielding roller shutter device

Technical Field

The utility model relates to the technical field of ship accessories, in particular to a hidden shielding roller shutter device.

Background

The areas of a ventilation port, an equipment access port, a ship-based boat, a sea compensation device and the like of a ship are provided with a stealth shielding net, so that radar waves are not transmitted, internal equipment and structures cannot form cavity reflection, and a local scattering source in the area is thoroughly solved. The invisible shielding net is usually designed into a hinge type or a rolling curtain type, so that the equipment is convenient to access and overhaul.

The design current situation of invisible appearance of ships at home and abroad:

in a certain type of domestic missile yacht, an opening of a yacht body is covered by a rolling door and a shutter, and rolling curtain devices are arranged at a side of a certain dock landing ship and a small yacht.

In order to prevent radar reflection areas generated by lifeboats and maritime supply devices, the French Raftiet-level protective warship is specially provided with a wire mesh net curtain, the net curtain is flush with the side wall of an inclined superstructure, and the net curtain is put down during sailing. The shielding effect is achieved, radar waves are prevented from passing through, and the radar reflection area cannot be formed by the facilities inside.

At present, a main shaft on a roller shutter device on a ship is arranged in an opening, and support structures at two ends of the main shaft reduce the net size of the opening and influence the in and out of a sea repair device

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a hidden shielding roller shutter device, which has the advantages that side rails at two ends of a main shaft are easy to install, the net size of an opening is not changed, and the entering and exiting of a sea repair device are not influenced.

In order to achieve the purpose of the utility model, a stealthy shielding roller shutter device is provided, which comprises a driving mechanism and a roller shutter mechanism;

the driving mechanism comprises a supporting plate, a motor, a first transmission chain wheel, a second transmission chain wheel and a first chain; the supporting plate is fixed at the upper end of one side of the opening; the motor is arranged on the supporting plate; the first rotating chain wheel is rotationally connected with the supporting plate, and the second driving chain wheel is fixed on the outer side of the first driving chain wheel and shares the same axis with the first driving chain wheel; one end of the first chain is sleeved on the first transmission chain wheel, and the other end of the first chain is connected with the output end of the motor;

the roller shutter mechanism comprises a transverse bracket, a main shaft, a shielding net and two side rails; the transverse bracket is fixed at the upper part of the outer side of the opening; the main shaft is horizontally and rotatably arranged on the transverse support along the width direction of the opening, one end of the main shaft is connected with a second chain, one end of the second chain is sleeved on the second transmission chain wheel, and the other end of the second chain is connected to one end of the main shaft; the two side rails are vertically fixed on the outer side of the opening; the shielding net is wound on the main shaft, and one end of the shielding net is fixed on the main shaft; all be equipped with a plurality of first pulleys on the both sides of shielding net, first pulley with side track looks adaptation, the shielding net sets up two through the first pulley of its both sides slip on the side track.

Preferably, the shielding net comprises a plurality of spiral net wires and a plurality of wire penetrating wires; two adjacent spiral net wires are connected together through wire penetrating, and the other spiral net wires and the wire penetrating are sequentially assembled according to the method to form a double-spiral net structure.

Preferably, each of the spiral mesh wire and the threading wire is fixed at the left end and the right end and fused together by argon arc welding.

Preferably, the material of the shielding net is 316 stainless steel.

Preferably, a counterweight rod is fixed at the bottom of the shielding net, second pulleys are arranged at two ends of the counterweight rod, and the second pulleys are matched with the side rails; and the counterweight rods are arranged on the two side rails in a sliding manner through second pulleys at two ends.

Preferably, the transverse support is further provided with an auxiliary roller in a horizontal rotating mode, and the auxiliary roller is located above the side guide rail.

The stealthy shielding roller shutter device has the following advantages that:

(1) the main shaft of the hidden shielding roller shutter device is arranged outside the opening, and the problem that the hidden performance of equipment is influenced by an external main shaft structure is solved through the overall hidden design of the main ship body. The motor at the inner side of the bulkhead opening is transmitted to the main shaft at the outer side of the bulkhead opening through two-stage chain wheel transmission, so that the opening and closing functions of the hidden shielding roller shutter device are realized;

(2) the side track structures at the two ends of the main shaft are easy to install, the net size of the opening is unchanged, and the entering and exiting of the sea repair equipment are not influenced.

Drawings

Fig. 1 is a schematic structural view of a hidden shielding roller blind apparatus according to the present embodiment;

FIG. 2 is a schematic structural view of a driving mechanism in the present embodiment;

fig. 3 is a side view of a stealth shield rolling shutter device in the present embodiment;

FIG. 4 is a schematic view of the structure of the driving mechanism connected to the spindle in the present embodiment;

fig. 5 is a schematic structural view of the weight lever in the present embodiment;

fig. 6 is a schematic structural view of the shielding net in the present embodiment;

fig. 7 is a front view of a concealed shielding roller blind apparatus according to the present embodiment.

Detailed description of the preferred embodiments

The utility model is further described below with reference to the following figures and specific examples.

As shown in fig. 1, the stealth shielding rolling screen device of the utility model comprises a driving mechanism and a rolling screen mechanism;

as shown in fig. 2, the driving mechanism includes a support plate 6, a motor 11, a first driving sprocket 8, a second driving sprocket 9, and a first chain 7; the supporting plate 6 is fixed at the upper end of one side of the opening 1; the motor 11 is arranged on the supporting plate 6; the first rotating chain wheel 8 is rotationally connected with the supporting plate 6, and the second driving chain wheel 9 is fixed on the outer side of the first driving chain wheel 8 and shares the same axis with the first driving chain wheel 8; one end of the first chain 7 is sleeved on the first transmission chain wheel 8, and the other end of the first chain 7 is connected with the output end of the motor 11; the first transmission chain wheel 8 and the second transmission chain wheel 9 are driven by the first chain 7 to rotate through the driving of the motor 11.

As shown in fig. 3 and 4, the roller shutter mechanism includes a lateral bracket 4, a main shaft 5, a shielding net 15, and two side rails 2; the transverse bracket 4 is fixed at the upper part of the outer side of the opening 1; the main shaft 5 is horizontally and rotatably arranged on the transverse support 4 along the width direction of the opening 1, one end of the main shaft 5 is connected with a second chain 12, one end of the second chain 12 is sleeved on the second transmission chain wheel 9, and the other end of the second chain 12 is connected to one end of the main shaft 5; the two side rails 2 are vertically fixed on the outer side of the opening 1; the shielding net 15 is wound on the main shaft, and one end of the shielding net 15 is fixed on the main shaft 5; a plurality of first pulleys (not shown in the figure) are arranged on both sides of the shielding net 15, the first pulleys are matched with the side rails 2, and the shielding net 15 is arranged on the two side rails 2 in a sliding manner through the first pulleys on both sides of the shielding net; so set up, through the transmission of first chain 7 and second chain 12, drive main shaft 5 and rotate to realize that shielding net 15 moves from top to bottom on side track 2, open or close opening 1.

In this embodiment, as shown in fig. 6 and 7, the shielding net 15 has a double-spiral structure, and includes a plurality of spiral net wires and a plurality of wire penetrations; two adjacent spiral net wires are connected together through wire penetrating, and the other spiral net wires and the wire penetrating are sequentially assembled according to the method to form a net-shaped structure. Through the research on the four-type stealth shielding net, the RCS of the crawling wave and the diffraction wave of the target is in the magnitude of 0dBsm, and the RCS value of the stealth target is greatly influenced. RCS simulation results show that: the average attenuation value (dB) of the double-spiral net under typical frequency points of X and Ku wave bands is relatively large, namely the stealth shielding effect is obvious. The double-helix stealth shielding net has the advantages of high structural strength, stable and reliable performance, suitability for the working condition of a roller shutter and the like.

Furthermore, each spiral net wire and each wire penetrating are fixed at the left end and the right end and are welded together through argon arc welding, so that the strength and the longitudinal tensile strength of the whole net structure are ensured.

Furthermore, the shielding net 15 is made of 316 stainless steel, which is resistant to seawater corrosion.

In this embodiment, as shown in fig. 5, a counterweight rod 13 is fixed at the bottom of the shielding net 15, two ends of the counterweight rod 13 are both provided with a second pulley 14, and the second pulley 14 is adapted to the side rail 2; the counterweight rods 13 are arranged on the two side rails 2 in a sliding manner through second pulleys 14 at two ends; by arranging the balance weight rod 13, the shielding net 15 can be effectively ensured to be kept stable in the process of ascending or descending.

In addition, the transverse support 4 is also horizontally and rotatably provided with an auxiliary roller 10, and the auxiliary roller 10 is positioned above the side rail 2 and plays a role in guiding the shielding net 15, so that the shielding net 15 on the main shaft 5 can be accurately conveyed onto the side rail 2.

Although embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are exemplary and not to be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. A stealthy shielding roller shutter device is characterized by comprising a driving mechanism and a roller shutter mechanism;

2. The roller blind apparatus of claim 1, wherein the shielding mesh comprises a plurality of spiral mesh wires and a plurality of thread wires; two adjacent spiral net wires are connected together through the corresponding wire penetrating respectively to form a double-spiral net structure.

3. The concealed shielding roller shutter device according to claim 2, wherein each of the spiral mesh wires and the through wires are fixed at the left and right ends by argon arc welding.

4. The roller blind apparatus of any one of claims 1 to 3, wherein the shielding mesh is made of 316 stainless steel.

5. The stealth shielding roller shutter device according to any one of claims 1 to 3, wherein a weight bar is fixed to a bottom of the shielding net, and second pulleys are provided at both ends of the weight bar and adapted to the side rails; and the counterweight rods are arranged on the two side rails in a sliding manner through second pulleys at two ends.

6. The blind shielding rolling shutter device according to any one of claims 1 to 3, wherein an auxiliary roller is further horizontally rotatably provided on the lateral bracket, and the auxiliary roller is located above the side rail.