Multi-channel hose swivel

Abstract

This utility model discloses a multi-channel hose rotary joint, belonging to the field of fluid transmission technology. The utility model includes a rotating structure and a housing. The rotating structure includes a rotating shaft with a ring of retaining posts along its outer wall. The housing includes a shell with an arc-shaped groove along its inner wall, containing a retaining head that engages with the retaining posts. Each retaining post includes a column with a row of ball sockets on its left side, each ball socket containing a groove. The retaining head includes a ball head with a groove at its ball head, each groove containing a spring, and a wedge outside the spring that engages with the groove. Through the structural design of the retaining posts and retaining heads, this utility model features a ring of retaining posts on the outer wall of the rotating shaft and elastically extendable retaining heads within the arc-shaped grooves of the housing. The ball sockets of the retaining posts contain grooves, and the ball head of the retaining head, through the spring, pushes the wedge to form a stable engagement with the groove. During rotation, the contact pressure can be automatically adjusted, reducing wear.

Description

Technical Field

[0001] This utility model relates to the field of fluid transmission technology, specifically a multi-channel hose rotary joint. Background Technology

[0002] In industrial fluid transmission systems, rubber hoses are widely used for transporting fluids such as coolant and hydraulic oil due to their flexibility and resistance to media. When the pipeline system requires relatively rotating components, how to achieve continuous and reliable transmission of fluid in the rotating state becomes a key technical challenge. As a key connecting component, rotary joints can establish a sealed fluid channel between the rotating component and the fixed pipeline, ensuring leakage-free transmission of the medium.

[0003] Traditional multi-channel rotary joints typically employ mechanical seals or bearing support structures to achieve rotational functionality, and their design must balance sealing performance, load-bearing capacity, and rotational flexibility. In existing technologies, rotary joints often achieve multi-channel fluid transmission through the cooperation of inner and outer sleeves, and some structures use snap-fit ​​or threaded connections to ensure rotational stability. As industrial equipment demands higher reliability, durability, and multi-channel integration from rotary joints, it is necessary to further optimize the snap-fit ​​structure, sealing performance, and fluid channel layout of rotary joints to adapt to long-term stable operation under complex working conditions. Therefore, a multi-channel hose rotary joint is proposed to address the above issues. Utility Model Content

[0004] The purpose of this invention is to provide a multi-channel hose rotary joint.

[0005] This utility model is achieved through the following technical solution:

[0006] This utility model relates to a multi-channel hose rotary joint, comprising a rotating structure and a housing. The rotating structure includes a rotating shaft with a ring of retaining posts arranged axially on the outer wall of the rotating shaft. The housing includes a shell with an arc-shaped groove formed axially on the inner wall of the shell. A retaining head is provided in the arc-shaped groove, and the retaining posts engage with the retaining head. The retaining posts include a column body with a row of ball sockets on the left side of the column body, and a groove I is formed in a ring within each ball socket. The retaining head includes a ball head post with a ring of groove II at the ball head of the ball head post. A spring I is provided in each groove II, and a wedge is provided outside the spring I, with the wedge engaging with the groove I.

[0007] Furthermore, a second spring is provided at the end of the ball-head column, and the other end of the second spring is located in an arc-shaped groove.

[0008] Furthermore, a ring of channels is formed axially inside the rotating shaft.

[0009] Furthermore, a second channel corresponding to the first channel is provided inside the shell.

[0010] Furthermore, bearings are provided at both the upper and lower ends of the rotating shaft, and a flange is provided at the top of the rotating shaft.

[0011] Furthermore, the passageway is stepped.

[0012] This utility model has the following beneficial effects:

[0013] This utility model features a design with locking posts and a locking head. A ring of locking posts is set on the outer wall of the rotating shaft, and a retractable locking head is set in the arc-shaped groove of the outer shell. The ball socket of the locking post has a groove, and the ball head of the locking head is pushed by a spring to form a stable engagement with the wedge and groove. During rotation, the contact pressure can be automatically adjusted to reduce wear, while ensuring reliable axial and circumferential positioning to prevent loosening or misalignment during rotation. The second spring further provides buffering, making the engagement smoother and facilitating disassembly and maintenance.

[0014] This utility model features a stepped channel structure design. A stepped channel 1 is arranged axially inside the rotating shaft, which corresponds to and connects with channel 2 inside the housing. The stepped design improves the pressure-bearing capacity of the channels and allows for the rational arrangement of different media such as coolant and hydraulic oil within a limited space, reducing fluid interference. It also facilitates processing and sealing, reduces the risk of leakage, and is suitable for the high-efficiency and stable transmission requirements of multi-channel hoses.

[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the rotary joint;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the rotary joint;

[0018] Figure 3 This is a schematic diagram of the connection structure between the rotating structure and the outer shell.

[0019] Figure 4 This is a detailed structural diagram of the locking pin and locking head.

[0020] In the diagram: 1. Rotating structure; 101. Rotating shaft; 102. Channel 1; 103. Bearing; 104. Flange; 3. Locking post; 301. Post; 2. Outer shell; 201. Shell; 202. Channel 2; 203. Arc-shaped groove; 302. Ball socket; 303. Groove 1; 4. Locking head; 401. Ball head post; 402. Groove 2; 403. Spring 1; 404. Wedge; 405. Spring 2. 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 Figure 1-4 This utility model provides a technical solution: a multi-channel hose rotary joint, including a rotating structure 1 and a housing 2. The rotating structure 1 includes a rotating shaft 101, and a ring of retaining posts 3 is arranged axially on the outer wall of the rotating shaft 101. The housing 2 includes a shell 201, and an arc-shaped retaining groove 203 is opened axially on the inner wall of the shell 201. A retaining head 4 is arranged in the arc-shaped retaining groove 203.

[0023] In this embodiment, the rotating shaft 101 in the rotating structure 1 is dynamically connected to the arc-shaped groove 203 and the locking head 4 on the inner wall of the outer shell 2 via the locking post 3 on the outer wall, thereby achieving stable rotation of the rotating shaft 101 relative to the shell 201. The ball socket 302 and groove 303 on the post 301 cooperate with the ball head post 401 and wedge 404 of the locking head 4. Under the elastic force of the spring 403, the wedge 404 is embedded in the groove 303, forming a reliable locking connection, ensuring axial and circumferential limiting during rotation, and reducing wear through elastic contact, thus improving service life. The spring 405 provides additional buffering, making the locking connection smoother, facilitating assembly and disassembly, and suitable for frequent rotation conditions.

[0024] The locking post 3 and the locking head 4 are engaged. The locking post 3 includes a post body 301, and a row of ball sockets 302 are opened on the left side of the post body 301. A groove 303 is opened in a circle in each ball socket 302. The locking head 4 includes a ball head post 401, and a groove 402 is opened in a circle at the ball head of the ball head post 401. A spring 403 is set in each groove 402. A wedge 404 is set outside the spring 403. The wedge 404 cooperates with the groove 303. A spring 405 is set at the end of the post body of the ball head post 401. The other end of the spring 405 is set in the arc-shaped locking groove 203.

[0025] In this embodiment, the ball head post 401 of the clamp 4 is pushed by spring 403 to form a tight fit with the wedge 404 and the groove 303 of the clamp post 3, ensuring stability during rotation. The spring 405 at the end of the ball head post 401 further absorbs vibration and impact during rotation, preventing the clamping structure from being damaged due to excessive force. The double springs enable the clamp 4 to have adaptive adjustment capability to adapt to different speeds and load conditions. The cooperation between the groove 303 and the wedge 404 improves the positioning accuracy of the rotating shaft 101, avoids radial runout, and ensures the sealing of the fluid channel.

[0026] Furthermore, a first channel 102 is formed axially inside the rotating shaft 101. The first channel 102 is stepped. A second channel 202 corresponding to the first channel 102 is formed inside the housing 201. Bearings 103 are provided at both the upper and lower ends of the rotating shaft 101. A flange 104 is provided at the top of the rotating shaft 101.

[0027] In this embodiment, the first channel 102 inside the rotating shaft 101 is stepped and is connected to the second channel 202 of the housing 201 to form a multi-channel fluid transmission system. The stepped structure enhances the pressure-bearing capacity of the channel, optimizes the space utilization, enables the efficient flow of media such as coolant or hydraulic oil, reduces flow channel interference, facilitates processing and sealing, reduces leakage risk, and is suitable for high-pressure or multi-media transmission scenarios. The alignment of the first channel 102 and the second channel 202 ensures the continuous delivery of fluid during rotation and meets the stable transmission requirements under dynamic working conditions.

[0028] The bearings 103 at both ends of the rotating shaft 101 support its rotational movement, reduce frictional resistance, and improve operational stability. The flange 104 at the top is used to connect external pipelines or equipment, facilitating installation and fixation. The arrangement of the bearings 103 not only distributes the radial load of the rotating shaft 101 but also extends the service life of the joint. The flange 104 enhances the overall structure and ensures reliable connection between the rotary joint and other components, giving the rotary joint both high load-bearing capacity and convenient assembly characteristics.

[0029] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A multi-channel rotary union for a hose, comprising a rotary structure (1) and a housing (2), characterized in that, The following is stated: The rotating structure (1) includes a rotating shaft (101), and a ring of locking posts (3) is provided on the outer wall of the rotating shaft (101) along the axial direction; the outer shell (2) includes a shell (201), and an arc-shaped locking groove (203) is opened on the inner wall of the shell (201) along the axial direction. A locking head (4) is provided in the arc-shaped locking groove (203), and the locking posts (3) are engaged with the locking head (4); The card post (3) includes a post body (301), and a row of ball sockets (302) is opened on the left side of the post body (301). Each ball socket (302) has a groove (303) in a circle. The clip (4) includes a ball head post (401), a groove 2 (402) is opened at the ball head of the ball head post (401), a spring 1 (403) is provided in each groove 2 (402), and a wedge (404) is provided outside the spring 1 (403), and the wedge (404) cooperates with the groove 1 (303).

2. The multi-channel hose rotary joint according to claim 1, characterized in that, The ball head column (401) has a spring 2 (405) at its end, and the other end of the spring 2 (405) is located in the arc-shaped groove (203).

3. A multi-channel hose rotary joint according to claim 1, characterized in that, The rotating shaft (101) has a ring of channels (102) arranged along the axial direction inside.

4. A multi-channel hose rotary joint according to claim 3, characterized in that, The housing (201) has a second channel (202) inside, which corresponds to the first channel (102).

5. A multi-channel hose rotary joint according to claim 1, characterized in that, The rotating shaft (101) is provided with bearings (103) at both the upper and lower ends, and a flange (104) is provided at the top of the rotating shaft (101).

6. A multi-channel hose rotary joint according to claim 3, characterized in that, The first channel (102) is stepped.

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