Ship tail mud conveying and discharging pipe rotating joint

Abstract

The utility model relates to the technical field of joints, discloses a rotary joint for a dredge pipe at the tail of a ship, and solves the problems that after the rotary joint and other external pipelines are clamped and reinforced by using a spring, the spring is invalid after being used for a long time, the welded spring is troublesome to replace, and the working efficiency is reduced. Through the arrangement of a rotating pipe, a reinforcing assembly, a fixing plate, a threaded hole, a screw rod, a clamping plate, a clamping groove, a clamping opening, a clamping block, a clamping groove A, a spring and a connecting pipe, when the connecting pipe is connected with an external pipeline, the spring is manually extruded, so that the external pipeline can be in butt joint with the connecting pipe, then the applied force is released, the spring is still in an extruded contraction state, and the clamping plate makes contact with the external pipeline; and when the spring is used for a long time and the elastic force loses efficacy, the screw rod is rotated to enable the clamping plate to be taken out from the clamping groove A, the spring clamped on the clamping plate is taken out, the spring is replaced, and replacement is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of joints, in particular to a rotary joint for the mud conveying and discharging pipe at the stern of a ship. Background Technique

[0002] The rotary joint for the mud conveying and discharging pipe at the stern of a ship is a special component specifically used on a cutter suction dredger or other ships that need to conduct mud transportation. This joint is usually installed in the mud discharging pipeline at the stern of the ship, and its main function is to allow the mud discharging pipeline to rotate freely when the ship moves or turns, thereby avoiding the pipeline from being twisted or damaged.

[0003] In the existing technology, a rotary joint with the application number 202020175176.1, which relates to a rotary joint, includes a sealing ring and also includes a rotary joint sleeve. Side holes are provided on the inner circular surface of the rotary joint sleeve; one end of the rotary joint shaft is provided with a connecting plate, and an inner communication groove and a top hole that communicate with each other are provided on the outer circular surface of the rotary joint shaft; the rotary joint shaft of the rotary joint seat rotates and is inserted into the inside of the rotary cylinder, the rotary joint sleeve rotates and is sleeved outside the rotary cylinder and is fixedly connected to the connecting plate. An outer communication groove is provided on the outer circular surface of the rotary cylinder, and an inner wall hole is provided on the inner circular surface. The inner wall hole corresponds to and communicates with the inner communication groove. Side bottom holes and side top holes are provided on the flange plate of the rotary joint seat. The side bottom holes communicate with the outer communication groove, and the side top holes communicate with the inner wall hole; the fixed plate is fixed to the other end of the rotary joint shaft and is movably located above the flange plate. This rotary joint realizes the connection of multiple oil circuits while rotating, solves the rotation requirements of multiple pipelines, and is applicable to the supply of oil pressure, air pressure, and large-capacity coolant.

[0004] However, in the above structure, usually when the rotary joint is connected to an external pipeline, an inner pipe and a metal hose are installed, the inner pipe is connected to the joint, the siphon tube faces downward, and a gasket is added for fixed connection. After the rotary joint and other external pipelines are reinforced by spring clamping, the spring will fail after being used for a long time, and the welded spring is relatively troublesome to replace, reducing the work efficiency. Content of the Utility Model

[0005] The purpose of the utility model is to provide a rotary joint for the mud conveying and discharging pipe at the stern of a ship. By using this device for work, the problem that the spring will fail after being used for a long time, the welded spring is relatively troublesome to replace, and the work efficiency is reduced after the rotary joint and other external pipelines are reinforced by spring clamping is solved.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a rotary joint for the mud conveying and discharging pipe at the stern of a ship, including a rotating pipe, one side of the rotating pipe is rotatably connected to a fixed pipe, a connecting pipe is arranged inside the fixed pipe and the rotating pipe, and a reinforcing component for strengthening the connection is arranged on one side of the rotating pipe;

[0007] The reinforcement assembly includes fixing plates arranged on one side of the rotating pipe. There are multiple groups of the fixing plates. A clamping groove A is formed at the upper end of the fixing plate. A clamping block is clamped and connected inside the clamping groove A. A clamping interface is formed on one side of the clamping block. A spring is clamped and connected to one side of the clamping interface. A clamping plate is clamped and connected to one side of the spring. Clamping groove A is formed on the relatively inner sides of the fixing plate and the clamping plate. A clamping groove is formed on one side of the clamping plate. The other end of the spring is clamped and connected to the clamping groove. Threaded holes are formed on one sides of the two fixing plates and the clamping block. A screw rod is threadedly connected to one side of the threaded hole.

[0008] Further, a heat preservation pipe A is arranged on the inner wall of the rotating pipe, and a heat preservation pipe B is arranged on the inner wall of the fixed pipe.

[0009] Further, the heat preservation pipe A and the heat preservation pipe B are made of expanded perlite, and the heat preservation pipe A and the heat preservation pipe B are communicated.

[0010] Further, a main flow pipe and a support rod are arranged inside the heat preservation pipe B. A shunt pipe is communicated with one side of the main flow pipe. The support rod is fixedly connected to the shunt pipe.

[0011] Further, a connecting pipe is communicated with one side of the shunt pipe. The connecting pipe is communicated with a connecting tube. There are multiple groups of the connecting tubes.

[0012] Further, an interface is formed on one side of the rotating pipe and the heat preservation pipe A, and a connection port is formed on one side of the fixed pipe and the heat preservation pipe B. The connecting tube is communicated with the external pipeline through the interface and the connection port.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] The present utility model provides a rotary joint for a ship tail mud conveying and discharging pipe. Through the settings of the rotating pipe, the reinforcement assembly, the fixing plate, the threaded hole, the screw rod, the clamping plate, the clamping groove, the clamping interface, the clamping block, the clamping groove A, the spring and the connecting tube, when the connecting tube is connected to the external pipeline, the spring is manually squeezed so that the external pipeline can be docked with the connecting tube. Then, the applied force is released. At this time, the spring is still in the squeezed and contracted state. The clamping plate contacts the external pipeline, so that the spring is further squeezed. The generated elastic force can clamp the external pipeline. When the elastic force of the spring fails after being used for a long time, the screw rod is rotated so that the clamping plate can be taken out from the clamping groove A, and the spring clamped on the clamping plate is taken out to replace the spring, which is convenient for replacement. Description of the Drawings

[0015] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 It is an exploded view of the reinforcement assembly of the present utility model;

[0017] Figure 3 This is a half-sectional view of the overall structure of the present utility model;

[0018] Figure 4 This is a half-sectional view of the rotating pipe and the fixed pipe of the present utility model.

[0019] In the figure: 1. Rotating pipe; 11. Heat preservation pipe A; 2. Reinforcement assembly; 21. Fixed plate; 22. Threaded hole; 23. Screw; 24. Clamping plate; 241. Card slot; 25. Card interface; 26. Card engaging block; 27. Card engaging groove A; 28. Spring; 3. Fixed pipe; 31. Heat preservation pipe B; 4. Connecting pipe; 41. Connecting tube; 5. Support rod; 51. Diverging pipe; 6. Main pipe; 7. Interface; 8. Connecting port. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] To further understand the content of the present utility model, the present utility model will be described in detail in conjunction with the accompanying drawings.

[0022] Combined with Figure 1 , a rotary joint for a ship's tail mud conveying and discharging pipe includes a rotating pipe 1. One side of the rotating pipe 1 is rotatably connected to a fixed pipe 3. A connecting pipe 4 is fixedly connected inside the fixed pipe 3 and the rotating pipe 1. One side of the rotating pipe 1 is fixedly connected with a reinforcement assembly 2 for strengthening the connection.

[0023] The present utility model will be further described below in conjunction with the embodiments. Embodiment

[0024] Please refer to Figure 1 and Figure 2 , the reinforcement assembly 2 includes a fixed plate 21 arranged on one side of the rotating pipe 1. There are multiple groups of fixed plates 21. A card engaging groove A 27 is opened at the upper end of the fixed plate 21. A card engaging block 26 is engaged and connected inside the card engaging groove A 27. A card interface 25 is opened on one side of the card engaging block 26. A spring 28 is engaged and connected on one side of the card interface 25. A clamping plate 24 is engaged and connected on one side of the spring 28. A card engaging groove A 27 is opened on the opposite inner sides of the fixed plate 21 and the clamping plate 24. A card slot 241 is opened on one side of the clamping plate 24. The other end of the spring 28 is engaged and connected with the card slot 241. Threaded holes 22 are opened on one side of the two groups of fixed plates 21 and the card engaging block 26. A screw 23 is threadedly connected on one side of the threaded hole 22.

[0025] Specifically, the nozzle on the fixed pipe 3 is threadedly connected to the external pipe to achieve fixation. The nozzle 4 and the external pipe are first butt-jointed and clamped through an external metal hose and a gasket for reinforcement. During the clamping connection, the spring 28 is manually squeezed, so that the external pipe can be butted against the nozzle 4. Subsequently, the applied force is released. At this time, the spring 28 is still in a squeezed and contracted state and has elastic force to clamp the external pipe. The external pipe is located between the two sets of clamping plates 24, thus forming a clamping state. And the spring 28 continues to be squeezed, and the generated elastic force can clamp the external pipe. The clamping plate 24 is an elastic plate with a certain elasticity and can deform to a certain extent according to the force condition, thereby buffering the impact caused by the sludge. Since the metal hose and the gasket have been fixedly connected before, the basic connection stability can be maintained. After long-term threaded connection, the threads will wear, which is likely to cause the threaded connection to be insecure. The elastic force provided by the clamping plate 24 and the spring 28 clamps, increasing the friction force when the external pipe is connected to the nozzle 4, reducing the occurrence of relative sliding and rotation, being able to grip the external pipe tightly, and improving the connection stability. Align the threaded holes 22 opened in the fixing plate 21 and the clamping block 26. At this time, the screw 23 threadedly connects the fixing plate 21 and the clamping block 26 through the threaded holes 22, realizing the reinforcement of the clamping block 26, so that the spring 28 and the clamping block 26 can be firmly clamped in the clamping groove A27. When the elastic force of the spring 28 fails after being used for a long time, rotate the screw 23 so that the clamping plate 24 can be taken out from the clamping groove A27, and take out the spring 28 clamped on the clamping plate 24 to realize the replacement of the spring 28, which is convenient for replacement. Embodiment

[0026] Please refer to Figures 1-4 , a heat preservation pipe A11 is fixedly connected to the inner wall of the rotating pipe 1. The heat preservation pipe A11 and the heat preservation pipe B31 are made of expanded perlite. The heat preservation pipe A11 and the heat preservation pipe B31 are communicated. A heat preservation pipe B31 is fixedly connected to the inner wall of the fixed pipe 3. The heat preservation pipe A11 and the heat preservation pipe B31 are fixedly connected in communication. A main flow pipe 6 and a support rod 5 are fixedly connected inside the heat preservation pipe B31. A flow dividing pipe 51 is fixedly connected and communicated on one side of the main flow pipe 6. The support rod 5 is fixedly connected to the flow dividing pipe 51. A connecting pipe 41 is fixedly connected and communicated on one side of the flow dividing pipe 51. The connecting pipe 41 is fixedly connected and communicated with the nozzle 4. Multiple groups of nozzles 4 are fixedly connected. An interface 7 is opened on one side of the rotating pipe 1 and the heat preservation pipe A11. A connection port 8 is opened on one side of the fixed pipe 3 and the heat preservation pipe B31. The nozzle 4 is communicated with the external pipe through the interface 7 and the connection port 8.

[0027] Specifically, the fixed connection between the heat preservation pipe A11 and the heat preservation pipe B31 can keep the sludge inside the sludge discharge pipe warm, preventing the sludge from freezing in extremely cold weather and thus unable to flow out. The connection pipe 4 is threadedly connected with a sealing plug, and the shunt pipe 51 is threadedly connected with an external pipe to shunt and discharge the sludge, reducing the excessive pressure on the discharge through one pipe and thus avoiding the problem of leakage. When the discharge pipe 4 needs to be connected to the outside, the sealing plug inside the connection pipe 4 is taken out, and the sludge discharge pipe is communicated with the main pipe 6. At this time, the connection pipe 4 is not connected to the external pipe. First, adjust the connection angle, and then rotate the rotating pipe 1. The connection pipe 4 and the fixed pipe 3 rotate integrally around the center of the main pipe 6. The probability of the overall rotation and winding around the center is relatively low. After adjusting the angle, the interface of the connection pipe 4 corresponds to and is connected to the external pipe interface, and is threadedly connected to the external pipe. After the connection and installation are completed, the control valve is opened to discharge the mud flow, and the mud flow is shunted through multiple pipes to reduce the pressure on a single pipe.

[0028] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0029] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A stern mud delivery and discharge pipe rotary joint, comprising a rotary pipe (1), characterized in that: One side of the rotating tube (1) is rotatably connected to a fixed tube (3), a connecting tube (4) is provided inside the fixed tube (3) and the rotating tube (1), and one side of the rotating tube (1) is provided with a reinforcing component (2) for reinforcing the connection; The reinforcing assembly (2) comprises a fixing plate (21) arranged on one side of the rotating tube (1), wherein the fixing plate (21) is provided with a plurality of groups, a snap-fitting groove A (27) is provided at the upper end of the fixing plate (21), a snap-fitting block (26) is snap-fitted inside the snap-fitting groove A (27), a snap-fitting interface (25) is provided at one side of the snap-fitting block (26), a spring (28) is snap-fitted at one side of the snap-fitting interface (25), a clamping plate (24) is snap-fitted at one side of the spring (28), a snap-fitting groove A (27) is provided at the inner side opposite to the clamping plate (24), a snap-fitting groove (241) is provided at one side of the clamping plate (24), the other end of the spring (28) is snap-fitted and connected to the snap-fitting groove (241), threaded holes (22) are provided at one side of the two groups of fixing plates (21) and the snap-fitting blocks (26), and a screw rod (23) is threadedly connected at one side of the threaded hole (22).

2. A stern mud delivery and discharge pipe rotary joint according to claim 1, characterized in that: The inner wall of the rotating tube (1) is provided with a heat preservation tube A (11), and the inner wall of the fixed tube (3) is provided with a heat preservation tube B (31).

3. A stern mud delivery and discharge pipe rotary joint according to claim 2, characterized in that: The insulation pipe A (11) and the insulation pipe B (31) are made of expanded perlite, and the insulation pipe A (11) and the insulation pipe B (31) are connected.

4. A stern mud delivery and discharge pipe rotary joint according to claim 2, characterized in that: A main flow pipe (6) and a support rod (5) are arranged inside the heat preservation pipe B (31); a branch flow pipe (51) is arranged on one side of the main flow pipe (6); and the support rod (5) is fixedly connected to the branch flow pipe (51).

5. A stern mud delivery and discharge pipe rotary joint according to claim 4, characterized in that: One side of the flow distribution pipe (51) is connected to a connecting pipe (41), and the connecting pipe (41) is connected to a connecting pipe (4), and a plurality of connecting pipes (4) are provided.

6. A stern mud delivery and discharge pipe rotary joint according to claim 3, characterized in that: An interface (7) is provided on one side of the rotating tube (1) and the insulation tube A (11), a connecting port (8) is provided on one side of the fixed tube (3) and the insulation tube B (31), and the connecting pipe (4) is connected to an external pipeline via the interface (7) and the connecting port (8).

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