A bow thruster device

Abstract

The utility model discloses a bow blowing device, including annular platform and bow spray elbow, the rear end of bow spray elbow connects the inner contact body of no floating ring, and the front end connects bow spray nozzle, the upper end surface edge of annular platform is connected switching device base, switching device base is connected through the connecting frame bow spray elbow, switching device base is connected with the double rack swing oil cylinder for driving the swing of connecting frame, switching device base still includes two seat plates, two seat plates are connected on switching device base side wall, and one is used for connecting the gland of connecting frame on each seat plate upper end connection, the utility model discloses the purpose is to overcome the defect of present and provide a bow blowing device, can effectively improve the construction efficiency of drag suction dredger.

Description

Technical Field

[0001] This utility model relates to a bow blower device. Background Technology

[0002] The bow blowing device of a trailing suction hopper dredger is generally available in two types: dual-pipe and single-pipe.

[0003] Among them, the dual-pipeline scheme can separate the bow jet pipeline and the bow blow pipeline by connecting a gate valve and a tee. The switching between the two working conditions can be achieved by controlling the opening and closing of the gate valve. The advantage is that the operation is more convenient, but the disadvantage is that the equipment will be larger and the positioning of the pipeline will require higher accuracy during installation. The single-pipeline solution reduces the size of the equipment by sharing some pipelines, and the positioning requirements of the pipelines during installation are also lower, making the bow blowdown device easier to install.

[0004] However, traditional single-pipe bow blasting systems also have drawbacks. When switching between bow blasting and jet blasting modes, the crew needs to manually change the pipe connection method, which is cumbersome.

[0005] Therefore, a bow-blowing device is proposed to address the above problems. Utility Model Content

[0006] The purpose of this utility model is to overcome the existing defects and provide a bow blower device that can effectively improve the construction efficiency of trailing suction hopper dredgers.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a bow blow-out device, comprising an annular platform and a bow blow-out bend, wherein the rear end of the bow blow-out bend is connected to an inner body without a floating ring, and the front end is connected to a bow blow-out nozzle; a switching device base is connected to the upper end edge of the annular platform, and the switching device base is connected to the bow blow-out bend via a connecting frame; a double rack and pinion swing cylinder for driving the connecting frame to swing is connected to the switching device base.

[0008] Preferably, the switching device base further includes two base plates, which are connected to the side wall of the switching device base, and each base plate has a pressure cap for connecting the connecting frame connected to its upper end.

[0009] Preferably, the connecting frame includes a rotating shaft, a frame, a front ear plate of the frame, and a rear ear plate of the frame; the two ends of the rotating shaft are rotatably connected to the two seat plates through the two pressure caps, the frame is connected to the outer wall of the rotating shaft, the front end of the frame is connected to the bow nozzle through the front ear plate of the frame, and the rear end is connected to the inner body without a floating ring through the rear ear plate of the frame.

[0010] Preferably, the bow nozzle includes a tapered tube, the outer wall of which is connected to two nozzle lugs, and the nozzle lugs are hinged to the front lug of the frame via nozzle connecting pins.

[0011] Preferably, the inner connector without a floating ring includes two inner connector ear plates, which are connected to the outer wall of the inner connector without a floating ring, and are hinged to the rear ear plate of the frame via an inner connector connecting pin.

[0012] Preferably, the double rack and pinion swing cylinder includes a cylinder base and a swing cylinder body; the swing cylinder body is connected to the switching device base through the cylinder base, and the output end of the swing cylinder body is connected to one end of the rotating shaft.

[0013] Preferably, it also includes an external connector, the upper end of which is connected to the frame pipeline, the frame pipeline passing through the upper part of the frame and connecting to external equipment, and the external connector being located above the annular platform.

[0014] Preferably, it also includes an inner body with a floating ring, the inner body being located below the annular platform, and the lower end of the inner body with the floating ring being connected to the bow blowdown pipe.

[0015] Compared with the prior art, the beneficial effects of this utility model are: This bow blower device drives the connecting frame to swing through a double rack and pinion swing cylinder, realizing the separation and connection between the inner and outer connecting bodies without a floating ring, improving the connection method of the original device's bow spray pipeline, making the switching between bow blower and bow spray modes more convenient and faster, and effectively improving the construction efficiency of trailing suction hopper dredgers. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is an isometric view of the bow blower device of this utility model; Figure 2 This is a detailed view of the connection frame of this utility model; Figure 3 This is a detailed diagram showing the connection of the bow jet bend of this utility model; Figure 4 This is a schematic diagram of the swing of the bow jet bend of this utility model; Figure 5 This is a schematic diagram of the installation of the bow spray bend of this utility model.

[0017] In the diagram: 1. Base frame; 2. Base frame piping; 3. External connector; 4. Annular platform; 5. Internal connector with float ring; 6. Bow blow pipe; 7. Switching device base; 8. Connecting frame; 9. Bow nozzle; 10. Bow bend; 11. Double rack swing cylinder; 12. Internal connector without float ring; 72. Pressure cap; 73. Base plate; 81. Rotating shaft; 82. Frame; 83. Front ear plate of frame; 84. Rear ear plate of frame; 91. Tapered tube; 92. Nozzle ear plate; 93. Nozzle connecting pin; 111. Cylinder base; 112. Swing cylinder body; 122. Internal connector ear plate; 123. Internal connector connecting pin. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] like Figure 1-5 As shown, a bow blow device includes an annular platform 4 and a bow blow bend 10. The rear end of the bow blow bend 10 is connected to an inner body 12 without a floating ring, and the front end is connected to a bow blow nozzle 9. A switching device base 7 is connected to the upper edge of the annular platform 4. The switching device base 7 is connected to the bow blow bend 10 through a connecting frame 8. A double rack swing cylinder 11 for driving the connecting frame 8 to swing is connected to the switching device base 7.

[0020] Specifically, the front end of the annular platform 4 has a gap, which allows the bow nozzle system (bow nozzle 9, bow nozzle bend 10, and inner body 12 without float ring) connected to the connecting frame 8 to not interfere with the annular platform 4 when rotating.

[0021] Specifically, the switching device base 7 also includes two base plates 73, which are connected to the side wall of the switching device base 7. Each base plate 73 has a pressure cap 72 connected to its upper end for connecting the connecting frame 8. The base plates 73 and the pressure caps 72 are connected by bolts.

[0022] Specifically, the connecting frame 8 includes a pivot 81, a frame 82, a front ear plate 83, and a rear ear plate 84. The two ends of the pivot 81 are rotatably connected to two seat plates 73 through two pressure caps 72. The frame 82 is connected to the outer wall of the pivot 81. The front end of the frame 82 is connected to the bow nozzle 9 through the front ear plate 83, and the rear end is connected to the inner body 12 without a floating ring through the rear ear plate 84.

[0023] Specifically, the bow nozzle 9 includes a tapered tube 91, and two nozzle lugs 92 are connected to the outer wall of the tapered tube 91. The nozzle lugs 92 are hinged to the front lugs 83 of the frame via nozzle connecting pins 93.

[0024] Specifically, the inner body 12 without floating rings includes two inner body ear plates 122. The two inner body ear plates 122 are connected to the outer wall of the inner body 12 without floating rings. The two inner body ear plates 122 are hinged to the rear ear plate 84 of the frame through the inner body connecting pin 123.

[0025] Specifically, the double rack and pinion swing cylinder 11 includes a cylinder base 111 and a swing cylinder body 112; the swing cylinder body 112 is connected to the switching device base 7 through the cylinder base 111, and the output end of the swing cylinder body 112 is connected to one end of the rotating shaft 81.

[0026] This bow blowout device, after improving the original pipeline connection method, makes switching between pipelines more convenient. The specific usage method is as follows (taking the switching of the bow blowout pipeline to the bow jet pipeline as an example): First, check the connection between the inner body 5 with the float ring and the bow blowout winch wire rope. After confirming that the connection is correct, loosen the limiting device inside the outer body 3 to separate the inner body 5 with the float ring from the outer body 3. Slowly release the bow blowout winch wire rope so that the inner body 5 with the float ring and the bow blowout pipeline 6 descend slowly with the wire rope until the inner body 5 with the float ring descends to the sea surface and stabilizes. Then, the personnel on the anchor boat untie the wire rope on the inner body 5 with the float ring and allow the bow blowout winch to retract the wire rope. Next, the hydraulically driven double-rack oscillating cylinder 11 provides power, causing the rotating shaft 81 to rotate slowly. The bow nozzle system (bow nozzle 9, bow nozzle bend 10, and inner connector 12 without a float ring) rotates along with this system until the inner connector 121 without a float ring contacts the inner limit device of the outer connector 3, locking the limit device inside the outer connector 3. The pipeline switching is now complete. (The switching process is as follows...) Figure 4 After the switch is completed, the status is as follows Figure 5 ).

[0027] Specifically, it also includes an external connector 3, the upper end of which is connected to the mounting frame pipe 2. The mounting frame pipe 2 passes through the upper mounting frame 1 and connects to external equipment. The external connector 3 is located above the annular platform 4. It also includes an internal connector 5 with a floating ring, located below the annular platform 4. The lower end of the internal connector 5 with the floating ring is connected to the bow blow pipe 6.

[0028] Specifically, the tail of the annular platform 4 is welded to the base frame 1. The bow blow pipe 2 passes through the base frame 1 and is welded and fixed. The top flange of the outer body 3 is bolted to the front flange of the base frame pipe 2 and is located at the center line of the annular ring of the annular platform 4. The center line of the cable guide hole at the top of the base frame 1, the center line of the outer body 3, and the center line of the annular ring of the annular platform 4 coincide. The bottom flange of the inner body 5 with a floating ring is bolted to the top flange of the bow blow pipe 6, and the top sphere of the inner body 5 with a floating ring can be locked and fixed to the bottom of the outer body 3.

[0029] This bow blower device drives the connecting frame 8 to swing through the double rack and pinion swing cylinder 11, thereby achieving the separation and connection of the inner body 12 without a float ring and the outer body 3. This improves the connection method of the original device's bow spray pipeline, making the switching between bow blower and bow spray modes more convenient and faster, and can effectively improve the construction efficiency of trailing suction hopper dredgers.

[0030] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A bow-blowing device, characterized in that, It includes an annular platform (4) and a bow spray bend (10). The rear end of the bow spray bend (10) is connected to an inner body (12) without a floating ring, and the front end is connected to a bow spray nozzle (9). A switching device base (7) is connected to the upper edge of the annular platform (4). The switching device base (7) is connected to the bow spray bend (10) through a connecting frame (8). A double rack swing cylinder (11) for driving the connecting frame (8) to swing is connected to the switching device base (7).

2. The bow-blowing device according to claim 1, characterized in that, The switching device base (7) also includes two seat plates (73), which are connected to the side wall of the switching device base (7). Each seat plate (73) has a pressure cap (72) connected to the upper end of the upper end for connecting the connecting frame (8).

3. The bow-blowing device according to claim 2, characterized in that, The connecting frame (8) includes a pivot (81), a frame (82), a front ear plate (83) of the frame, and a rear ear plate (84) of the frame. The two ends of the pivot (81) are rotatably connected to the two seat plates (73) through the two pressure caps (72). The frame (82) is connected to the outer wall of the pivot (81). The front end of the frame (82) is connected to the bow nozzle (9) through the front ear plate (83) of the frame, and the rear end is connected to the inner body (12) without a floating ring through the rear ear plate (84) of the frame.

4. The bow-blowing device according to claim 3, characterized in that, The bow nozzle (9) includes a tapered tube (91), and the outer wall of the tapered tube (91) is connected to two nozzle ear plates (92). The nozzle ear plates (92) are hinged to the front ear plate (83) of the frame through a nozzle connecting pin (93).

5. The bow-blowing device according to claim 3, characterized in that, The inner body (12) without floating rings includes two inner body ear plates (122), which are connected to the outer wall of the inner body (12) without floating rings. The two inner body ear plates (122) are hinged to the rear ear plate (84) of the frame through an inner body connecting pin (123).

6. The bow-blowing device according to claim 3, characterized in that, The double rack and pinion swing cylinder (11) includes a cylinder base (111) and a swing cylinder body (112); the swing cylinder body (112) is connected to the switching device base (7) through the cylinder base (111), and the output end of the swing cylinder body (112) is connected to one end of the rotating shaft (81).

7. The bow-blowing device according to claim 1, characterized in that, It also includes an external connector (3), the upper end of which is connected to the frame pipe (2), the frame pipe (2) passes through the upper part of the frame (1) and is connected to external equipment, and the external connector (3) is located above the annular platform (4).

8. The bow-blowing device according to claim 1, characterized in that, It also includes an inner body (5) with a floating ring, which is located below the annular platform (4), and the lower end of the inner body (5) with the floating ring is connected to the bow blow pipe (6).

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