Rotary joint device

By designing a rotary joint device and utilizing the rigid sliding mechanism of the side wall of the fixed and rotary joint, the problems of small turning radius and insufficient strength of fluid conveying devices in deep-sea aquaculture are solved, realizing multi-angle conveying and high rigidity connection, which is suitable for water intake operations of deep-sea aquaculture vessels.

CN224120841UActive Publication Date: 2026-04-14QINGDAO BLUE GRANARY MARINE FISHERY DEV CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO BLUE GRANARY MARINE FISHERY DEV CO LTD
Filing Date
2025-07-28
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

In the existing technology, fluid transport devices lack effective pipeline laying and connection and angle adjustment methods in the field of deep-sea aquaculture, resulting in small turning radius and insufficient strength, making it difficult to withstand forces perpendicular to the turning plane.

Method used

A rotary joint device was designed. By using a rigid sliding mechanism fixed to the side wall of the rotary joint, a rotating shaft is used to realize the corner conveying and connection structure, which enhances the rigid connection and turning radius of the joint device. The shoulder screws between the fixed joint assembly and the rotary joint assembly are used to connect them, and the lateral sliding connection is realized by the design of the sliding plate.

Benefits of technology

It enables flexible changes in the conveying direction within a small range, while improving the ability to withstand planes perpendicular to the rotation direction, making it suitable for multi-angle water intake operations on deep-sea aquaculture vessels.

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Abstract

The utility model provides a rotary joint device, and belongs to the field of mechanical design. Corner conveying and connection structure design is achieved based on a rotating shaft, and rigid connection and large turning radius of the connector device are improved through a side wall rigid sliding mechanism for fixing and rotating the connector. Comprising a fixed connector assembly and a rotary connector assembly which are rotationally connected with each other, the fixed connector assembly comprises a hollow first frame with the overall structure being a rectangular body, two sets of first holes are symmetrically formed in the two sides of the first frame in a penetrating mode, and four sets of first surrounding plates are welded to the vertical side portions of the first frame correspondingly; a group of first arc-shaped plates are fixedly welded to the bottoms of the inner sides of the two opposite groups of first surrounding plates respectively, a group of first baffles are horizontally connected to each group of first arc-shaped plates, and a first mounting plate provided with a first water inlet and outlet is mounted at the top of the first frame; and the bottom of the first surrounding plate and the tail end of each group of first arc-shaped plates are respectively connected with a group of second baffle plates and a group of third baffle plates.
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Description

Technical Field

[0001] This application relates to the field of mechanical design, specifically proposing a rotary joint device applicable to the transportation of liquids or compressed gases. Background Technology

[0002] Currently, various connector devices that can change the direction and angle of transport are commonly used in fluid transport engineering design. For example, in the field of deep-sea aquaculture, since aquaculture vessels usually adopt a closed cabin structure, the difference between the internal and external environments of the vessel must be overcome when taking water for aquaculture. For example, an inlet is set at the bottom of the cabin, and a pump is used to suck water into the cabin and then input it into the transport channels of each aquaculture pond.

[0003] Existing technologies lack corresponding control methods for pipeline laying, connection, and adjustment of the conveying angle. Such water conveyance facilities have defects and deficiencies such as small turning radius and significantly low strength between different angle connection parts, making it difficult to withstand forces perpendicular to the turning plane.

[0004] In view of the above, this patent application is hereby filed. Utility Model Content

[0005] The rotary joint device described in this application addresses the problems of the prior art by implementing a rotary shaft-based design for corner conveying and connection. It improves the rigid connection and larger turning radius of the joint device through a rigid sliding mechanism fixed to the side wall of the rotary joint.

[0006] To achieve the above design objectives, the rotary joint device includes a fixed joint assembly and a rotary joint assembly that are rotatably connected to each other. The fixed joint assembly includes a hollow, rectangular first frame. Two sets of first holes are symmetrically arranged through both sides of the first frame. Four sets of first enclosure plates are welded to the vertical side of the first frame. A set of first arc-shaped plates is welded and fixed to the bottom inner side of the two sets of first enclosure plates. A set of first baffles is horizontally connected to each set of first arc-shaped plates. A first mounting plate with a first inlet and outlet is installed on the top of the first frame. A set of second baffles and a set of third baffles are connected to the bottom of the first enclosure plates and the end of each set of first arc-shaped plates, respectively.

[0007] The rotary joint assembly includes a hollow, rectangular second frame. Two sets of second holes are symmetrically arranged through both sides of the second frame. Four sets of second enclosure plates are welded along the vertical side of the second frame. A set of second arc-shaped plates is welded and fixed to the top of the outer side of each of the two sets of second enclosure plates. A fourth baffle is connected between the top of the second frame and the two sets of second arc-shaped plates. A fifth baffle, a third arc-shaped plate, and a sixth baffle are connected to the side of the second frame and the outer side of each set of second arc-shaped plates. A second mounting plate with a second inlet and outlet is installed at the bottom of the second frame.

[0008] The fixed joint assembly and the rotary joint assembly are connected by a shoulder screw passing through the first hole and the second hole in sequence. A nut is sealed on the outer end of the shoulder screw. The rotary joint assembly reciprocates relative to the fixed joint assembly about the axis of the shoulder screw.

[0009] Furthermore, the diameter of the second arc-shaped plate of the rotary joint assembly is smaller than the length of the smallest side of the rectangle formed by the second and third baffles of the fixed joint assembly.

[0010] Furthermore, the first mounting plate and the second mounting plate are respectively connected to the fluid delivery pipelines at both ends.

[0011] Furthermore, a first slide plate and a second slide plate are symmetrically installed on the sides of the first and third arc-shaped plates, respectively, with the first and second slide plates having the same appearance contour and surface curvature.

[0012] Furthermore, a seventh baffle and an eighth baffle are respectively provided on both sides of the first skateboard, and a ninth baffle and a tenth baffle are respectively provided on both sides of the second skateboard.

[0013] Furthermore, along the central axis after the first hole and the second hole are connected by overlapping, a third arc-shaped plate, a first sliding plate, a second sliding plate, and a third arc-shaped plate are axially fitted from the inside out in sequence; the first sliding plate is confined between the fifth baffle and the sixth baffle, and the second sliding plate is confined between the seventh baffle and the eighth baffle.

[0014] In summary, the rotary joint device proposed in this application has the following advantages and beneficial effects:

[0015] 1. This application is applicable to a variety of fluid media, can flexibly change the conveying direction within a small range, and at the same time has a large planar bearing capacity perpendicular to the rotation direction.

[0016] 2. This application achieves a lateral sliding connection between the fixed and rotary joints through a rotating shaft design, which significantly improves the rigidity of the connection part. Attached Figure Description

[0017] The following figures will be used to further illustrate the scheme of this application;

[0018] Figure 1 This is a cross-sectional schematic diagram of a rotary joint device;

[0019] Figure 2 yes Figure 1 Enlarged view of point A;

[0020] Figure 3 yes Figure 1 Enlarged view of point B;

[0021] Figure 4 Is it like this? Figure 1 Isometric side view of the structure shown;

[0022] Figure 5 This is an isometric side view of the fixed connector assembly;

[0023] Figure 6 This is a schematic diagram of the first skateboard;

[0024] Figure 7 This is a schematic diagram of the second skateboard;

[0025] Figure 8 This is an isometric view of the rotary joint assembly;

[0026] In the above figures, the components include: fixed joint assembly 10, first frame 11, first enclosure plate 12, first arc plate 13, first baffle 14, first hole 15, first inlet / outlet 16, first mounting plate 17, second baffle 18, third baffle 19, rotary joint assembly 30, second frame 31, second enclosure plate 32, second arc plate 33, second hole 34, fourth baffle 35, fifth baffle 36, third arc plate 37, sixth baffle 38, second inlet / outlet 39, second mounting plate 40, first sliding plate 50, seventh baffle 51, eighth baffle 52, second sliding plate 60, ninth baffle 61, tenth baffle 62, shoulder screw 70, and nut 71. Detailed Implementation

[0027] Example 1, as Figures 1 to 8 As shown, a rotary joint device applicable to deep-sea aquaculture vessels is disclosed. This joint device enables multi-angle conveying direction adjustment when providing water for aquaculture of various aquatic organisms in deep-sea environments.

[0028] The rotary joint device includes a fixed joint assembly 10 and a rotary joint assembly 30 that are rotatably connected to each other. The fixed joint assembly 10 includes a hollow, rectangular first frame 11. Two sets of first holes 15 are symmetrically arranged through both sides of the first frame 11. Four sets of first enclosure plates 12 are welded to the vertical side of the first frame 11. A set of first arc-shaped plates 13 are welded and fixed to the bottom of the inner side of the two sets of first enclosure plates 12 respectively. A set of first baffles 14 are horizontally connected to each set of first arc-shaped plates 13. A first mounting plate 17 with a first inlet and outlet 16 is installed on the top of the first frame 11. A set of second baffles 18 and a third baffle 19 are connected to the bottom of the first enclosure plates 12 and the end of each set of first arc-shaped plates 13 respectively. After the above components are welded and fixed, a closed space with a water transport passage is formed inside.

[0029] The rotary joint assembly 30 includes a hollow, rectangular second frame 31. Two sets of second holes 34 are symmetrically arranged through both sides of the second frame 31. Four sets of second enclosure plates 32 are welded to the vertical side of the second frame 31. A set of second arc-shaped plates 33 are welded and fixed to the top of the outer side of the two sets of second enclosure plates 32 respectively. A fourth baffle 35 is connected between the top of the second frame 31 and the two sets of second arc-shaped plates 33. A fifth baffle 36, a third arc-shaped plate 37 and a sixth baffle 38 are connected to the side of the second frame 31 and the outer side of each set of second arc-shaped plates 33 respectively. A second mounting plate 40 with a second inlet and outlet 39 is installed at the bottom of the second frame 31. After the above components are welded and fixed, a closed space with a water transport passage is formed.

[0030] The fixed joint assembly 10 and the rotary joint assembly 30 are connected by a shoulder screw 70 passing through the first hole 15 and the second hole 34 in sequence. A nut 71 is encapsulated on the outer end of the shoulder screw 70. The rotary joint assembly 30 reciprocates relative to the fixed joint assembly 10 about the axis of the shoulder screw 70.

[0031] The diameter of the second arc-shaped plate 33 of the rotary joint assembly 30 is smaller than the length of the shortest side of the rectangle formed by the second baffle 18 and the third baffle 19 of the fixed joint assembly 10. Therefore, the second arc-shaped plate 33 of the rotary joint assembly 30 can pass through the rectangle formed by the second baffle 18 and the third baffle 19 and enter the interior of the fixed joint assembly 10, thereby achieving a close fit with the first arc-shaped plate 13. Furthermore, the rotary joint assembly 30 and the fixed joint assembly 10 can be rotated along the axes of the first hole 15 and the second hole 34 by the shoulder screw 70 passing through the first hole 15 and the second hole 34.

[0032] The first mounting plate 17 and the second mounting plate 40 are respectively connected to the water delivery pipelines at both ends.

[0033] like Figure 4 As shown, the inner wall of the fixed joint assembly 10 and the outer wall of the rotary joint assembly 30 are in sliding fit in the Y direction, with a small gap between them; based on the axial installation effect of the shoulder screw 70, when the fixed joint assembly 10 is relatively fixed, the rotary joint assembly 30 can maintain good rigidity after being subjected to external force in the Y direction.

[0034] A first sliding plate 50 and a second sliding plate 60 are symmetrically installed on the sides of the first arc plate 13 and the third arc plate 37, respectively. The first sliding plate 50 and the second sliding plate 60 have the same appearance outline and surface curvature. A seventh baffle 51 and an eighth baffle 52 are respectively provided on both sides of the first sliding plate 50, and a ninth baffle 61 and a tenth baffle 62 are respectively provided on both sides of the second sliding plate 60.

[0035] like Figures 1 to 4 As shown, a third arc-shaped plate 37, a first sliding plate 50, a second sliding plate 60, and a first arc-shaped plate 13 are sequentially fitted from the inside out along the central axis after the first hole 15 and the second hole 34 are connected and overlapped. The multi-layered fitting relationship formed above determines that the first sliding plate 50 is limited between the fifth baffle 36 and the sixth baffle 38, and the second sliding plate 60 is limited between the seventh baffle 51 and the eighth baffle 52. At the same time, the first baffle 14 is used to limit the position and angle range of relative rotation of the first sliding plate 50 and the second sliding plate 60.

[0036] Based on the structural design of the aforementioned rotary joint device, this application is used to realize the transportation of water in multiple directions and angles, such as... Figure 1 As shown, at this time, the rotary joint assembly 30 is at the position of maximum rotation angle, the second baffle 18 and the fourth baffle 35 play a limiting role, and the first slide plate 50 and the second slide plate 60 are restricted to the position of minimum resistance that does not affect the liquid flow direction K.

[0037] When the rotary joint assembly 30 rotates clockwise, the sixth baffle 38 pulls the seventh baffle 51, the eighth baffle 52 pulls the ninth baffle 61, and the first slide plate 50 and the second slide plate 60 slide in sequence. When it rotates to the lowest position, the third baffle 19 blocks the tenth baffle 62, thereby forming a barrier to prevent the internal and external water bodies from communicating with each other, and increasing the angle adjustment range.

[0038] When the rotary joint assembly 30 rotates counterclockwise, the fifth baffle 36 contacts the seventh baffle 51 and the ninth baffle 61, causing the first slide plate 50 and the second slide plate 60 to also rotate counterclockwise and reach their maximum positions. At this time, the second baffle 18 restricts the fourth baffle 35, and the overall rotation angle of the rotary joint assembly 30 is at its maximum.

[0039] This application can overcome the shortcomings of the prior art, thereby enabling the change of fluid transport direction within a small space, while being able to withstand large pressure perpendicular to the rotation direction, such as in the water intake operation process of deep-sea aquaculture vessels.

[0040] In summary, the embodiments shown in the accompanying drawings are merely preferred solutions for achieving the objectives of this utility model. Those skilled in the art can draw inspiration from this and directly derive other alternative structures that conform to the design concept of this utility model. Other structural features derived therefrom should also fall within the scope of the solutions described in this utility model.

Claims

1. A rotary union device, characterized by: The assembly includes a fixed joint assembly and a rotary joint assembly that are rotatably connected to each other. The fixed joint assembly includes a hollow, rectangular first frame. Two sets of first holes are symmetrically arranged through the two sides of the first frame. Four sets of first enclosure plates are welded to the vertical side of the first frame. A set of first arc-shaped plates are welded and fixed to the bottom inner side of the two sets of first enclosure plates respectively. A set of first baffles is horizontally connected to each set of first arc-shaped plates. A first mounting plate with a first inlet and outlet is installed on the top of the first frame. A set of second baffles and a set of third baffles are connected to the bottom of the first enclosure plates and the end of each set of first arc-shaped plates respectively. The rotary joint assembly includes a hollow, rectangular second frame. Two sets of second holes are symmetrically arranged through both sides of the second frame. Four sets of second enclosure plates are welded along the vertical side of the second frame. A set of second arc-shaped plates is welded and fixed to the top of the outer side of each of the two sets of second enclosure plates. A fourth baffle is connected between the top of the second frame and the two sets of second arc-shaped plates. A fifth baffle, a third arc-shaped plate, and a sixth baffle are connected to the side of the second frame and the outer side of each set of second arc-shaped plates. A second mounting plate with a second inlet and outlet is installed at the bottom of the second frame. The fixed joint assembly and the rotary joint assembly are connected by a shoulder screw passing through the first hole and the second hole in sequence. A nut is sealed on the outer end of the shoulder screw. The rotary joint assembly reciprocates relative to the fixed joint assembly about the axis of the shoulder screw.

2. The rotary joint apparatus of claim 1, wherein: The diameter of the second arc-shaped plate of the rotary joint assembly is smaller than the length of the smallest side of the rectangle formed by the second and third baffles of the fixed joint assembly.

3. The rotary joint apparatus of claim 1, wherein: The first mounting plate and the second mounting plate are respectively connected to the fluid delivery pipelines at both ends.

4. The rotary joint apparatus of claim 1, wherein: The first and second skateboards are symmetrically installed on the sides of the first and third arc-shaped plates, respectively. The first and second skateboards have the same appearance and surface curvature.

5. The rotary joint apparatus of claim 4, wherein: A seventh baffle and an eighth baffle are respectively provided on both sides of the first skateboard, and a ninth baffle and a tenth baffle are respectively provided on both sides of the second skateboard.

6. A rotary joint device according to claim 4 or 5, characterised in that: Along the central axis of the connection between the first hole and the second hole, the third arc-shaped plate, the first sliding plate, the second sliding plate, and the first arc-shaped plate are axially fitted from the inside out. The first skateboard is confined between the fifth and sixth barriers, and the second skateboard is confined between the seventh and eighth barriers.