Filtering type rotary joint

Abstract

The utility model discloses a filtering type rotary joint which comprises a rotary sealing sleeve and a combined storage hole, the combined storage hole is formed in the center of the interior of the rotary sealing sleeve, a connecting through hole is formed in the center of the top end of the rotary sealing sleeve, and the connecting through hole is communicated with the combined storage hole. A first sealing ring is mounted at the top end of the interior of the combined storage hole in a bonded mode, and a second sealing ring is mounted on the bottom face of a frame of the rotary sealing sleeve in a bonded mode. According to the filter type rotary joint, when a filter core column needs to be replaced, after a rotary connecting pipe is separated from an external pipeline, the rotary connecting pipe is pressed forcibly, the rotary connecting pipe and an adjusting circular ring can slide in a rotary sealing sleeve, the adjusting circular ring pushes a supporting spring to contract and operate, and the filter core column is separated from the external pipeline according to the limitation of a limiting supporting frame; and therefore, replacement operation can be quickly carried out.

Description

Technical Field

[0001] This utility model relates to the field of rotary joint technology, specifically a filter-type rotary joint. Background Technology

[0002] A rotary joint is a connecting device used for pipelines. After connection, it allows the connected pipeline to rotate, enabling 360° rotation for conveying media. However, rotary joints currently on the market still have the following problems:

[0003] After the rotary joint is assembled with the pipeline, the conveying medium passes directly through the rotary joint. When it is necessary to filter the conveying medium in the pipeline, a filter element needs to be added inside the rotary joint. Because the rotary joint has rotating components inside, the installation of the filter element and subsequent disassembly and replacement are inconvenient.

[0004] To address the aforementioned issues, an innovative design was developed based on the existing rotary joint. Utility Model Content

[0005] The purpose of this utility model is to provide a filter-type rotary joint to solve the problem mentioned in the background art that the rotary joints commonly found on the market have the problem that after the rotary joint is assembled with the pipeline, the conveying medium passes directly through the rotary joint. When it is necessary to filter the conveying medium in the pipeline, a filter element needs to be added inside the rotary joint. Because the rotary joint has a rotating component inside, the installation of the filter element and subsequent disassembly and replacement are inconvenient.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a filter-type rotary joint, comprising a rotary sealing sleeve and a combined storage hole. The combined storage hole is located at the center of the interior of the rotary sealing sleeve, and a connecting through hole is located at the center of the top of the rotary sealing sleeve, communicating with the combined storage hole. A first sealing ring is bonded to the top of the combined storage hole, and a second sealing ring is bonded to the bottom surface of the frame of the rotary sealing sleeve. An adjusting ring is installed inside the combined storage hole, and ball bearings are installed on the outer curved surface of the adjusting ring. A rotating connecting tube is located at the center of the top surface of the adjusting ring, and the rotating connecting tube... The connecting pipe passes through the top surface of the connecting hole and the rotating sealing sleeve. A filter core column is installed inside the rotating connecting pipe. A support spring is installed below the adjusting ring and is located inside the combined receiving hole. An arc-shaped tube is installed below the rotating sealing sleeve, and a threaded docking hole is opened at the center of the bottom end of the arc-shaped tube. A connecting pipe head is provided at the center of the top end of the arc-shaped tube and is located inside the combined receiving hole. A limit support frame is welded and fixedly installed on the inner wall of the connecting pipe head, and the limit support frame extends into the combined receiving hole and the rotating connecting pipe, and is located below the center of the filter core column.

[0007] Preferably, the adjusting ring has balls evenly spaced on it, and the balls are connected to the adjusting ring by rotation, and the balls are connected to the inner wall of the rotating sealing sleeve by fit.

[0008] Preferably, the rotating connecting pipe and the adjusting ring are integrated into one structure, and the top surface of the adjusting ring is connected to the first sealing ring by compression fitting.

[0009] Preferably, the connection between the rotating connecting tube and the filter core column is a sliding fit, and the distance between the top surface of the filter core column and the top surface of the rotating connecting tube is less than the extension range of the support spring, and the connection between the bottom surface of the filter core column and the top surface of the limiting support frame is a fitted connection.

[0010] Preferably, the support spring is connected to the adjusting ring and the connecting tube head in a close fit, and the inner diameter of the support spring is larger than the inner diameter of the connecting tube head and the adjusting ring.

[0011] Preferably, the arc-shaped tube body and the connecting tube head are integrated into one structure, and the connecting tube head is connected to the rotating sealing sleeve through the combined storage hole by a threaded connection, and the top surface of the arc-shaped tube body is connected to the second sealing ring by compression fitting.

[0012] Compared with the prior art, the beneficial effects of this utility model are: this filter-type rotary joint,

[0013] 1. First, the rotating connecting pipe can rotate 360° on the rotating sealing sleeve by adjusting the ball bearings on the ring and the combined storage hole. The sealing is achieved by pushing the support spring and squeezing the adjusting ring and the first sealing ring together. A filter core column can be installed in the center of the rotating connecting pipe to filter the conveyed medium. The filter core column is restricted by the limiting support frame to prevent it from sliding into the arc-shaped pipe body. Filter core columns of different densities can be installed according to different conveyed media.

[0014] 2. When it is necessary to replace the filter core, the rotating connecting tube can be separated from the external pipeline. Press the rotating connecting tube firmly, and the rotating connecting tube and the adjusting ring can slide inside the rotating sealing sleeve. The adjusting ring pushes the support spring to retract and rotate. The filter core is pushed out from the inside of the rotating connecting tube according to the limitation of the limit support frame, so that the replacement operation can be performed quickly. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0016] Figure 2 This is a schematic diagram of the overall cross-sectional three-dimensional structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the overall three-dimensional exploded structure of this utility model;

[0018] Figure 4 This is a three-dimensional structural diagram of the adjusting ring and rotating connecting tube of this utility model;

[0019] Figure 5 This is a three-dimensional cross-sectional view of the rotating sealing sleeve of this utility model.

[0020] In the diagram: 1. Rotary sealing sleeve; 2. Combined storage hole; 3. Connecting through hole; 4. First sealing ring; 5. Second sealing ring; 6. Adjusting ring; 7. Ball bearing; 8. Limiting support frame; 9. Rotary connecting tube; 10. Filter core column; 11. Support spring; 12. Arc-shaped tube body; 13. Threaded mating hole; 14. Connecting tube head. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1 to 5 This utility model provides a technical solution: a filter-type rotary joint, including a rotary sealing sleeve 1 and a combined receiving hole 2. The combined receiving hole 2 is provided at the center of the interior of the rotary sealing sleeve 1, and a connecting through hole 3 is provided at the center of the top of the rotary sealing sleeve 1, and the connecting through hole 3 is interconnected with the combined receiving hole 2. A first sealing ring 4 is bonded to the top of the interior of the combined receiving hole 2, and a second sealing ring 5 is bonded to the bottom surface of the frame of the rotary sealing sleeve 1. An adjusting ring 6 is installed inside the combined receiving hole 2, and a ball bearing 7 is installed on the outer curved surface of the adjusting ring 6. A rotating connecting tube 9 is provided at the center of the top surface of the adjusting ring 6, and the rotating connecting tube 9 passes through the connecting through hole 3 and the rotary receiving hole 2. On the top surface of the rotary sealing sleeve 1, a filter core column 10 is installed inside the rotary connecting pipe 9. A support spring 11 is installed below the adjusting ring 6 and is located inside the combined receiving hole 2. An arc-shaped tube 12 is installed below the rotary sealing sleeve 1, and a threaded mating hole 13 is opened at the center of the bottom end of the arc-shaped tube 12. A connecting pipe head 14 is set at the center of the top end of the arc-shaped tube 12 and is located inside the combined receiving hole 2. A limit support frame 8 is welded and fixedly installed on the inner wall of the connecting pipe head 14, and the limit support frame 8 extends into the combined receiving hole 2 and the rotary connecting pipe 9. The limit support frame 8 is located below the center of the filter core column 10.

[0023] The adjusting ring 6 has balls 7 evenly spaced on it, and the balls 7 are connected to the adjusting ring 6 by rotation. The balls 7 are also connected to the inner wall of the rotating sealing sleeve 1 by fit. The balls 7 on the adjusting ring 6 facilitate the smooth sliding assembly of the adjusting ring 6 inside the combined storage hole 2 and the subsequent 360° rotation, avoiding shaking.

[0024] The rotating connecting pipe 9 and the adjusting ring 6 are integrated into one structure, and the top surface of the adjusting ring 6 is connected to the first sealing ring 4 by compression. The adjusting ring 6 and the rotating connecting pipe 9 can operate synchronously, thereby driving the pipeline connected to the rotating connecting pipe 9 to rotate. At the same time, the adjusting ring 6 can perform sealing work by compression and bonding with the first sealing ring 4.

[0025] The connection between the rotating connecting tube 9 and the filter core column 10 is a sliding fit, and the distance between the top surface of the filter core column 10 and the top surface of the rotating connecting tube 9 is less than the extension range of the support spring 11. The connection between the bottom surface of the filter core column 10 and the top surface of the limiting support frame 8 is a fitted connection. The filter core column 10 can be installed inside the rotating connecting tube 9 for subsequent filtration of the conveyed medium. At the same time, the position of the filter core column 10 inside the rotating connecting tube 9 facilitates its subsequent push-out through the limiting support frame 8.

[0026] The support spring 11 is connected to the adjusting ring 6 and the connecting tube head 14 in a close fit manner, and the inner diameter of the support spring 11 is larger than the inner diameter of the connecting tube head 14 and the adjusting ring 6. This ensures the stability of the support spring 11 when it is compressed and retracts, and prevents it from sliding into the interior of the adjusting ring 6 and the connecting tube head 14, thereby achieving the support function of rotational sealing.

[0027] The arc-shaped tube 12 and the connecting tube head 14 are integrated into one structure. The connecting tube head 14 is connected to the rotary sealing sleeve 1 by a threaded connection through the combined receiving hole 2. The top surface of the arc-shaped tube 12 is connected to the second sealing ring 5 by compression fitting. The arc-shaped tube 12 can be installed and fixed to the rotary sealing sleeve 1 through the connecting tube head 14, and the connection between the arc-shaped tube 12 and the second sealing ring 5 is used for sealing.

[0028] Working principle: According to Figures 1 to 5First, the adjusting ring 6 and the rotating connecting tube 9 can be installed on the rotating sealing sleeve 1. The adjusting ring 6 is slidably installed in the combined receiving hole 2. At the same time, the adjusting ring 6 drives the rotating connecting tube 9 through the connecting through hole 3 and through the center of the top surface of the rotating sealing sleeve 1, so that the top surface of the adjusting ring 6 is pressed and fitted with the first sealing ring 4. Next, the support spring 11 is installed inside the combined receiving hole 2 and below the adjusting ring 6. Then, the connecting tube head 14 on the arc-shaped tube body 12 is threadedly connected to the combined receiving hole 2 at the bottom of the rotating sealing sleeve 1. At the same time, the top surface of the connecting tube head 14 supports and pushes the support spring 11, so that the support spring 11 remains stable inside the combined receiving hole 2. At the same time, the support spring 11 pushes the adjusting ring 6 to maintain the stability of the pressing and fitting between the adjusting ring 6 and the first sealing ring 4. The connecting tube head 14 can drive the limiting support frame 8 through the support spring 11 and the adjusting ring 6 to move to the bottom end of the rotating connecting tube 9. When the arc-shaped tube body 12 is rotated to drive the connecting tube head 14 to be assembled and fixed, The top surface of the arc-shaped tube 12 is pressed and fitted with the second sealing ring 5 to seal the unit, completing the overall assembly. Next, a suitable filter core 10 can be slidably installed into the interior of the rotating connecting tube 9. The limiting support frame 8 restricts the installation position of the filter core 10, preventing it from sliding into the combined receiving hole 2 and the interior of the arc-shaped tube 12. Subsequently, by pressing the rotating connecting tube 9, it retracts through the telescopic operation of the adjusting ring 6 and the support spring 11, allowing the filter core 10 inside the rotating connecting tube 9 to be pushed out through the limiting support frame 8, facilitating the overall replacement operation. After replacement, the adjusting ring 6 and the rotating connecting tube 9 can be reset and sealed by the elastic force of the support spring 11. Simultaneously, the adjusting ring 6 can smoothly slide and rotate according to the ball bearing 7, facilitating the subsequent 360° rotation of the rotating connecting tube 9. This is the entire working process of the device. Any content not described in detail in this specification belongs to the prior art known to those skilled in the art.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A filter-type rotary joint, comprising a rotary sealing sleeve (1) and a combined receiving hole (2), characterized in that: The rotating sealing sleeve (1) has a combined storage hole (2) at its inner center and a connecting through hole (3) at its top center, which communicates with the combined storage hole (2). A first sealing ring (4) is bonded to the top of the combined storage hole (2), and a second sealing ring (5) is bonded to the bottom of the frame of the rotating sealing sleeve (1). An adjusting ring (6) is installed inside the combined storage hole (2), and a ball bearing (7) is installed on the outer curved surface of the adjusting ring (6). A rotating connecting tube (9) is located at the center of the top surface of the adjusting ring (6), and the rotating connecting tube (9) passes through the connecting through hole (3) and the top surface of the rotating sealing sleeve (1). The rotating connecting tube (9) is installed inside the rotating connecting tube (9). The filter core column (10) is installed. A support spring (11) is installed below the adjusting ring (6) and the support spring (11) is located inside the combined storage hole (2). An arc-shaped tube (12) is installed below the rotating sealing sleeve (1) and a threaded docking hole (13) is opened at the center of the bottom end of the arc-shaped tube (12). A connecting tube head (14) is provided at the center of the top end of the arc-shaped tube (12) and the connecting tube head (14) is located inside the combined storage hole (2). A limiting support frame (8) is welded and fixedly installed on the inner wall of the connecting tube head (14) and the limiting support frame (8) extends into the combined storage hole (2) and the rotating connecting tube (9). The limiting support frame (8) is located below the center of the filter core column (10).

2. A filter-type rotary joint according to claim 1, characterized in that: The adjusting ring (6) has balls (7) evenly spaced on it, and the balls (7) are connected to the adjusting ring (6) by rotation, and the balls (7) are connected to the inner wall of the rotating sealing sleeve (1) by fit.

3. A filter-type rotary joint according to claim 1, characterized in that: The rotating connecting pipe (9) and the adjusting ring (6) are integrated into one structure, and the top surface of the adjusting ring (6) is connected to the first sealing ring (4) by compression fitting.

4. A filter-type rotary joint according to claim 1, characterized in that: The connection between the rotating connecting tube (9) and the filter core column (10) is a sliding fit, and the distance between the top surface of the filter core column (10) and the top surface of the rotating connecting tube (9) is less than the extension range of the support spring (11), and the connection between the bottom surface of the filter core column (10) and the top surface of the limiting support frame (8) is a fitted connection.

5. A filter-type rotary joint according to claim 1, characterized in that: The support spring (11) is connected to the adjusting ring (6) and the connecting tube head (14) in a close fit, and the inner diameter of the support spring (11) is larger than the inner diameter of the connecting tube head (14) and the adjusting ring (6).

6. A filter-type rotary joint according to claim 1, characterized in that: The arc-shaped tube (12) and the connecting tube head (14) are integrated into one structure. The connecting tube head (14) is connected to the rotating sealing sleeve (1) through the combined storage hole (2) by a threaded connection. The top surface of the arc-shaped tube (12) is connected to the second sealing ring (5) by a compression fit.

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