Novel rotary joint
By designing an interference fit between the steering nut, steering joint, and rotating O-ring, the problems of insufficient rotational resistance and waterproof performance of the rotary joint were solved, achieving a rotary joint effect with low resistance and high waterproof performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-25
- Publication Date
- 2026-03-27
AI Technical Summary
Existing rotary joints exhibit significant resistance during rotation, which can easily cause metal hoses to come loose. Furthermore, their waterproof performance is insufficient, affecting the safety and lifespan of the equipment.
A novel rotary joint has been designed, employing a steering nut, a steering joint, and a rotary O-ring. Through precise interference fit and sealing structure, it reduces rotational resistance and improves waterproof performance.
It enables easy rotation of the metal hose, avoids decoupling, and forms a reliable sealing structure, improving the waterproof performance and reliability of the equipment.
Smart Images
Figure CN224049893U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of swivel joint, specifically relates to a novel swivel joint. BACKGROUND
[0002] In some special equipment or electrical control cabinet equipment, metal hose often needs to be continuously rotated, and the conventional swivel joint has great resistance when running, which makes the metal hose prone to tripping phenomenon in the rotating process, influences normal use and safety of the equipment, and meanwhile, the waterproof performance is also an important index for the swivel joint, and if the waterproof effect is poor, the equipment inside can be damp, short-circuit and the like, thereby influencing the service life and performance of the equipment, therefore, a novel swivel joint is urgently needed to solve the above problems. SUMMARY
[0003] In view of the problems in the above background art, the utility model aims at providing a novel swivel joint.
[0004] To achieve the above technical purpose, the utility model adopts the following technical scheme:
[0005] A novel swivel joint, comprising a steering nut, the upper side of the steering nut is provided with a mounting groove, a limiting block is mounted in the mounting groove, the top outer side of the steering nut is provided with an assembly step, a steering joint is movably mounted on the top outer side of the steering nut, the steering joint is provided with a limiting butt joint groove at the position corresponding to the limiting block, the steering joint is provided with a steering groove on the upper side of the limiting butt joint groove, a rotating O-shaped ring is mounted in the steering groove, the inner side of the rotating O-shaped ring is mounted on the assembly step, the top outer side of the steering joint is provided with a sealing groove, and a sealing O-shaped ring is mounted in the sealing groove.
[0006] Further limited, the outer side upper end of the limiting block is provided with a guide inclined surface, one side of the limiting block is provided with a notch and is provided in a C-shaped structure. Such a structure design facilitates the assembly work of the steering joint along the guide inclined surface.
[0007] Further limited, the rotating O-shaped ring is produced by using oiling silica gel, NBR+silicone oil material. Such a structure design makes the rotating O-shaped ring have good lubricity, rust and corrosion resistance, oil resistance, wear resistance, high temperature resistance and good elasticity, and improves the use effect.
[0008] Further limited, the axial interference between the rotating O-shaped ring, the steering nut and the steering joint is 0.29mm, the radial interference is 0.26mm, and the axial part gap between the steering nut and the steering joint is controlled within 0.16mm. Such a structure design can form a reliable sealing structure and effectively prevent liquid or dust from entering the inside of the swivel joint.
[0009] Further limited, the steering nut and the outer side of the steering joint are hexagonal structure, the top of the steering joint is provided with thread.
[0010] The utility model discloses the beneficial effect is: the utility model discloses through setting up steering nut, steering joint and rotating O type ring, after assembling, can greatly reduce the rotating resistance of rotating joint, makes metal flexible pipe can rotate easily, effectively avoids the occurrence of tripping phenomenon, the cooperation installation and strict axial part gap control of sealing O type ring simultaneously, can form reliable sealing structure, effectively prevent liquid or dust from entering rotating joint inside, improve the waterproof performance and reliability of equipment. BRIEF DESCRIPTION OF DRAWINGS
[0011] The utility model can be further explained by the non - limiting embodiment shown in the attached drawing;
[0012] Fig. 1 It is structural diagram of a novel rotating joint of the utility model embodiment;
[0013] Fig. 2 It is sectional structure schematic diagram of a novel rotating joint of the utility model embodiment;
[0014] Fig. 3 It is explosion structure schematic diagram of a novel rotating joint of the utility model embodiment;
[0015] The main element symbol explanation is as follows:
[0016] Steering nut 1, installation groove 2, limit block 3, assembly step 4, steering joint 5, limit butt joint groove 6, steering recess 7, rotating O type ring 8, sealing groove 9, sealing O type ring 10, guide inclined plane 11, gap 12, thread 13. DETAILED DESCRIPTION
[0017] In order to make the person skilled in the art can better understand the utility model, the utility model technical scheme is further explained below in conjunction with the attached drawing and example.
[0018] As Figs. 1-3As shown, the utility model discloses a novel rotary joint, the upper side of steering nut 1 is equipped with installation groove 2, and the installation groove 2 is installed with limiting block 3, and the top outside of steering nut 1 is equipped with assembly step 4, and the top outside of steering nut 1 is movably installed with steering joint 5, and the steering joint 5 is equipped with limiting butt joint groove 6 at the corresponding limiting block 3, and the steering joint 5 is equipped with steering recess 7 on the upside of limiting butt joint groove 6, and the steering recess 7 is installed with rotating O type ring 8, and the inside of rotating O type ring 8 is installed on assembly step 4, and the top outside of steering joint 5 is equipped with sealing groove 9, and sealing groove 9 is installed with sealing O type ring 10.
[0019] Preferably, the outside upper end of limiting block 3 is equipped with guide inclined plane 11, and the side of limiting block 3 is equipped with notch 12 and is arranged in C-shaped structure. Such structural design facilitates the assembly work of steering joint 5 along guide inclined plane 11. In fact, other structural shapes of limiting block 3 can be considered according to specific conditions.
[0020] Preferably, rotating O type ring 8 is produced by using oiling silica gel, NBR+silicone oil material. Such structural design makes rotating O type ring 8 have good lubricity, rust and corrosion resistance, oil resistance, wear resistance, high temperature resistance and good elasticity, improves the use effect. In fact, other structural shapes of rotating O type ring 8 can be considered according to specific conditions.
[0021] Preferably, the axial interference of rotating O type ring 8 with steering nut 1 and steering joint 5 is 0.29mm, and the radial interference is 0.26mm, and the axial part clearance between steering nut 1 and steering joint 5 is controlled within 0.16mm. Such structural design can form reliable sealing structure, effectively prevents liquid or dust from entering the inside of rotary joint. In fact, other installation structural shapes of rotating O type ring 8 with steering nut 1 and steering joint 5 can be considered according to specific conditions.
[0022] Preferably, the outside of steering nut 1 and steering joint 5 is arranged in hexagonal structure, and the top of steering joint 5 is equipped with screw thread 13. Such structural design facilitates the installation and connection of steering nut 1 and steering joint 5. In fact, other structural shapes of steering nut 1 and steering joint 5 can be considered according to specific conditions.
[0023] In the embodiment, during installation, the rotating O-ring 8 is first installed into the steering groove 7 of the steering joint 5, then the limiting block 3 is installed into the installation groove 2 of the steering nut 1, and then the steering joint 5 is installed onto the steering nut 1. During installation, the bottom of the steering joint 5 is spread along the guide slope 11 on the top of the limiting block 3, so that the steering joint 5 can pass through the limiting block 3 and be clamped at the bottom of the limiting block 3, and meanwhile the outer side of the limiting block 3 is fitted into the limiting butt joint groove 6 of the steering joint 5. At this time, the steering joint 5 drives the rotating O-ring 8 to press on the assembly step 4, and finally the sealing O-ring 10 is installed into the sealing groove 9 on the top of the steering joint 5, and the installation is completed.
[0024] The rotating O-ring 8 is made of oil outlet silica gel or NBR+silicone oil material, and is installed between the steering nut 1 and the steering joint 5. During installation, the rotating O-ring 8 is ensured to have interference fit dimensions with the steering nut 1 and the steering joint 5. Specifically, the axial interference is 0.29 mm, and the radial interference is 0.26 mm. Such interference fit can effectively prevent liquid or dust from entering the interior of the rotating joint, and can also reduce the rotating resistance under the premise of ensuring the sealing effect.
[0025] In order to further ensure the performance of the rotating joint, the axial part gap needs to be strictly controlled. The axial part gap between the steering nut 1 and the steering joint 5 is controlled within 0.16 mm through accurate machining and assembly process. In this way, the problems of sealing failure and unstable rotation caused by excessive gap can be avoided, and the performance of maintaining low rotating force can also be helped.
[0026] The above embodiment only exemplarily illustrates the principle and effect of the present application, and is not used to limit the present application. Any person skilled in the art can modify or change the above embodiment without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought of the present application should be covered by the claims of the present application.
Claims
1. A novel rotary joint characterized in that: The utility model provides steering nut (1), the upper side of steering nut (1) is equipped with installation groove (2), the installation groove (2) is installed with limit block (3), the top outside of steering nut (1) is equipped with assembly step (4), the top outside of steering nut (1) is movably installed with steering joint (5), the steering joint (5) is equipped with limit butt joint groove (6) at corresponding limit block (3), the steering joint (5) is equipped with steering recess (7) on the upper side of limit butt joint groove (6), the steering recess (7) is installed with rotary O type ring (8), the inner side of rotary O type ring (8) is installed on assembly step (4), the top outside of steering joint (5) is equipped with sealing groove (9), sealing groove (9) is installed with sealing O type ring (10).
2. A novel rotary joint as claimed in claim 1, wherein: The outer side upper end of the limit block (3) is equipped with a guide slope (11), one side of the limit block (3) is equipped with a notch (12) and is arranged in a C-shaped structure.
3. A novel rotary joint as claimed in claim 2, wherein: The rotary O type ring (8) is made of oiling silica gel, NBR and silicone oil material.
4. A novel rotary joint as claimed in claim 3, wherein: The axial interference of the rotary O type ring (8) with the steering nut (1) and the steering joint (5) is 0.29mm, the radial interference is 0.26mm, and the axial part gap between the steering nut (1) and the steering joint (5) is controlled within 0.16mm.
5. A novel rotary joint as claimed in claim 4, characterized in that: The outer sides of the steering nut (1) and the steering joint (5) are hexagonal in structure, and the top of the steering joint (5) is provided with threads (13).