Anti-falling rotary joint

Abstract

The utility model belongs to the technical field of rotary joints, and particularly relates to an anti-falling rotary joint which comprises a connecting body, a connecting part extending outwards is arranged at one end of the connecting body, a connecting sleeve is installed on the connecting part, a connecting groove is formed in the outer wall of the connecting part, and a fixing clamp spring is installed in the connecting groove. The inner wall of the connecting end of the connecting sleeve is provided with a first fixing groove and a connecting groove which are matched with the fixing clamp spring, the connecting sleeve can be fixedly installed on the connecting part of the connecting body through matched connection of the fixing clamp spring and the first fixing groove, and a second inclined face arranged on the inner wall of the connecting groove plays a guiding role during installation. And after being mounted, the connecting sleeve is in sliding connection with the first inclined surface on the inner ring wall of the fixed clamping spring, so that the connecting sleeve is mounted on the connecting part of the connecting main body and is not easy to fall off, and the efficient, stable and durable connecting performance is realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of rotary joints, and particularly relates to an anti - detachment rotary joint. Background Technique

[0002] A rotary joint is a sealing device that allows pipeline connection components to transmit various media such as gas, liquid, and oil under relative rotation. It adopts a compact design structure and is effectively integrated into customer equipment through flange - type connection. The design of the rotary joint allows the connected pipelines to rotate relatively by 360°, and it is widely used in various occasions where media need to be rotated and transmitted. There are various types of rotary joints, including hydraulic rotary joints, high - pressure rotary joints, multi - passage rotary joints, high - speed rotary joints, high - temperature rotary joints, and single - channel rotary joints, which are suitable for different working conditions and media types. For example, multi - passage rotary joints can transmit multiple different types of media simultaneously, which is particularly common in fields such as automated equipment and rotary machinery.

[0003] When the existing rotary joints are installed and connected, a circlip is provided inside. The circlip is generally an annular metal part with an opening. The circlip is installed in the card slot inside the rotary joint. The inner diameter of the circlip needs to be smaller than the outer diameter of the inner joint of the rotary joint, and its outer diameter needs to be larger than the inner diameter of the connecting sleeve. During installation, the circlip is assembled by extrusion and then restored by the metal resilience of the circlip. During the extrusion process, the circlip is easily over - extruded and deformed, and it is likely to fall off during subsequent long - term use, reducing the service life of the rotary joint. Summary of the Utility Model

[0004] I. Technical Problems to be Solved

[0005] Aiming at the above - mentioned defects existing in the prior art, the utility model particularly provides an anti - detachment rotary joint. The second inclined surface provided on the inner wall of the connecting groove plays a guiding role during installation. After installation, it is slidably connected to the first inclined surface on the inner ring wall of the fixed circlip, so that the connecting sleeve is not easily detached when installed on the connecting part of the connecting body, thereby solving the problems in the above background.

[0006] II. Technical Solution

[0007] To solve the above - mentioned technical problems, the utility model provides an anti - detachment rotary joint, which includes a connecting body. One end of the connecting body is provided with a connecting part extending outward. A connecting sleeve is installed on the connecting part. The outer wall of the connecting part has a connecting groove, and a fixed circlip is installed in the connecting groove. The inner wall of the connecting end of the connecting sleeve is provided with a first fixed groove matching the fixed circlip. The cooperation connection of the connecting groove, the fixed circlip, and the first fixed groove can fixedly install the connecting sleeve on the connecting part of the connecting body.

[0008] Preferably, the fixed circlip is a ring with an opening. A first inclined surface with a gradually decreasing diameter is provided on the inner ring wall of the fixed circlip. A second inclined surface matching the first inclined surface is provided on the inner wall of the connecting groove, and the first inclined surface is in sliding contact with the second inclined surface.

[0009] Preferably, the bottom of the inner ring of the fixed circlip is in contact with the side wall of the connecting groove, and the bottom of the outer ring of the fixed circlip is in contact with the side wall of the first fixing groove.

[0010] Preferably, the inner ring diameter of the fixed circlip is smaller than the outer ring diameter of the connecting groove, and the outer ring diameter of the fixed circlip is larger than the inner ring diameter of the first fixing groove.

[0011] Preferably, a second fixing groove extending inward is provided on the outside of the connecting part on the connecting body, and the connecting end of the connecting sleeve is connected in cooperation with the second fixing groove.

[0012] Preferably, a sealing groove is provided on the connecting part, and a rubber sealing ring is installed inside the sealing groove.

[0013] Preferably, a plurality of sealing grooves are provided on the connecting part, and a rubber sealing ring is installed inside each sealing groove.

[0014] Preferably, the connecting body, the connecting part, the connecting sleeve and the fixed circlip are all made of metal materials.

[0015] III. Beneficial Effects

[0016] Compared with the prior art, the second inclined surface provided on the inner wall of the connecting groove of the present utility model plays a guiding role during installation. After installation, it is slidably connected to the first inclined surface on the inner ring wall of the fixed circlip, so that the connecting sleeve is not easily detached when installed on the connecting part of the connecting body, realizing efficient, stable and durable connection performance. Description of the Drawings

[0017] Figure 1 It is a three-dimensional structural schematic diagram of an anti-detachment rotary joint.

[0018] Figure 2 It is a three-dimensional structural decomposition of an anti-detachment rotary joint Figure 1 .

[0019] Figure 3 It is a three-dimensional structural decomposition of an anti-detachment rotary joint Figure 2 .

[0020] Figure 4 It is a cross-sectional view of an anti-detachment rotary joint.

[0021] In the figure:

[0022] 1. Connecting body; 2. Connecting part; 21. Connecting groove; 211. Second inclined surface; 3. Connecting sleeve; 31. First fixing groove; 4. Fixed snap ring; 41. First inclined surface; 5. Second fixing groove; 6. Sealing groove. Detailed implementation mode

[0023] The following combines the accompanying drawings and embodiments to further describe in detail the specific implementation mode of the present utility model. The following embodiments are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0024] Embodiment 1:

[0025] Combined with Figure 1 、 Figure 2 and Figure 3 As shown, the anti - detachment rotary joint of this embodiment includes a connecting body 1. One end of the connecting body 1 is provided with a connecting part 2 extending outward. A connecting sleeve 3 is installed on the connecting part 2. There is a connecting groove 21 on the outer wall of the connecting part 2. A fixed snap ring 4 is installed in the connecting groove 21. The inner wall of the connecting end of the connecting sleeve 3 is provided with a first fixing groove 31 matching the fixed snap ring 4. The cooperation connection of the connecting groove 21, the fixed snap ring 4 and the first fixing groove 31 can fixedly install the connecting sleeve 3 on the connecting part 2 of the connecting body 1. Specifically, the connecting part 2 designed to extend outward is cylindrical or conical, depending on the requirements of the specific application scenario, so as to seamlessly connect with different types of pipes or equipment. The outer wall of the connecting part 2 is provided with continuous or discontinuous annular connecting grooves 21. These grooves not only enhance the mechanical locking effect between the connecting part 2 and the connecting sleeve 3, but also provide a space for installing the fixed snap ring 4. The depth, width and shape of the connecting groove 21 are precisely calculated to ensure that the fixed snap ring 4 can be firmly embedded and will not loosen due to vibration or external force. The fixed snap ring 4, as a key locking element, is made of stainless steel or spring steel. It can firmly be stuck between the connecting groove 21 and the first fixing groove 31 of the connecting sleeve, forming a reliable locking mechanism. It can maintain the connection stability even in a high - pressure environment. The inner wall of the connecting end of the connecting sleeve 3 is provided with a first fixing groove 31 matching the fixed snap ring 4. It ensures that the connecting sleeve 3 can be accurately aligned and firmly locked on the connecting part 2 during installation.

[0026] Combined with Figure 3 and Figure 4As shown, the fixed clamping spring 4 is a ring with an opening, and a first inclined surface 41 with a gradually decreasing diameter is provided on the inner ring wall of the fixed clamping spring 4, and a second inclined surface 211 matching the first inclined surface 41 is provided on the inner wall of the connecting groove 21, and the first inclined surface 41 is in sliding contact with the second inclined surface 211. Specifically, the first inclined surface 41 with a gradually decreasing diameter is provided on the inner ring wall of the fixed clamping spring 4, which is used to gradually increase the clamping force to achieve a tight fit and locking with the connecting groove 21. The connecting groove 21, as a matching component of the fixed clamping spring 4, is also provided with a second inclined surface 211 that perfectly matches the first inclined surface 41 on its inner wall. This face-to-face inclined design enables the first inclined surface 41 to smoothly slide and contact along the second inclined surface 211 when the fixed clamping spring 4 is installed in the connecting groove 21. This sliding process not only reduces the resistance during installation, but also gradually converts the elastic potential energy of the clamping spring into a tightening force on the connecting component through the interaction between the inclined surfaces. As the clamp is pushed in further, the contact area between the first inclined surface 41 and the second inclined surface 211 gradually increases, and it can adapt to the connection grooves 21 of different sizes within a certain range, thereby improving its versatility and flexibility. At the same time, when it is necessary to disassemble or replace parts, only a slight reverse force is needed to expand the opening of the clamp, so that it can be easily removed from the connection groove 21, realizing fast and convenient maintenance operations.

[0027] The bottom of the inner ring of the fixed circlip 4 contacts the side wall of the connecting groove 21, and the bottom of the outer ring of the fixed circlip 4 contacts the side wall of the first fixing groove 31. Specifically, when the fixed circlip 4 is correctly installed in place, the bottom of its inner ring is in close contact with the side wall of the connecting groove 21. This contact point not only provides stable support for the fixed circlip 4, but also ensures the accurate positioning of the fixed circlip 4 in the axial direction. It effectively prevents the fixed circlip 4 from deflecting or shaking during the installation process, thereby ensuring the reliability and durability of the connection. At the same time, the bottom of the outer ring of the fixed circlip 4 contacts the side wall of the first fixing groove 31. The fixing effect of the fixed circlip 4 is further enhanced, and by increasing the contact area and dispersing the pressure, the fixed circlip 4 can be more firmly maintained in the predetermined position when subjected to external force. The side wall of the first fixing groove 31 provides additional support and constraint for the bottom of the outer ring of the fixed circlip 4, prevents the fixed circlip 4 from moving or deforming in the radial direction, and ensures the tightness and stability of the connection. In addition, this design of double contact between inside and outside also optimizes the force distribution of the fixed circlip 4. The contact between the bottom of the inner ring and the side wall of the connecting groove 21 mainly bears the axial force, while the contact between the bottom of the outer ring and the side wall of the first fixing groove 31 helps to disperse and balance the radial force. This mechanically balanced design enables the fixing clamp 4 to maintain stable performance when bearing complex loads and prolongs its service life. The contact design between the fixing clamp 4 and the connecting groove 21 and the first fixing groove 31 ensures the stability and reliability of the connection.

[0028] Combined with Figure 2 、 Figure 3 and Figure 4 As shown, the inner ring diameter of the fixed circlip 4 is smaller than the outer ring diameter of the connecting groove 21, and the outer ring diameter of the fixed circlip 4 is larger than the inner ring diameter of the first fixing groove 31. Specifically, the inner ring diameter of the fixed circlip 4 is set to be smaller than the outer ring diameter of the connecting groove 21, ensuring that the fixed circlip 4 can easily slide into the connecting groove 21 and achieve a tight fit between the two without causing excessive friction or interference. This dimensional difference not only facilitates the installation process but also ensures that the fixed circlip 4 closely adheres to the wall of the connecting groove 21 after being fully inserted, effectively preventing the possibility of loosening or falling off.

[0029] Embodiment 2:

[0030] Compared with Embodiment 1, a second fixing groove 5 extending inward is provided on the outer side of the connecting portion 2 of the connecting body 1, and the connecting end of the connecting sleeve 3 is in fit connection with the second fixing groove 5. The inward extension structure of the second fixing groove 5 provides an accurate positioning and locking space for the connecting end of the connecting sleeve 3. When the connecting sleeve 3 is installed on the connecting body 1, its connecting end will be inserted into the second fixing groove 5 to form a tight fit connection. This not only ensures the axial stability of the connecting sleeve 3 but also increases the friction force through the contact surface between the second fixing groove 5 and the connecting end, thereby further enhancing the firmness of the connection. In addition, the design of the second fixing groove 5 also takes into account the sealing and protection of the connection system.

[0031] One or more sealing grooves 6 are provided on the connecting portion 2, and a rubber sealing ring is installed inside the sealing groove 6. When the rubber sealing ring is installed in the sealing groove 6, it can closely adhere to the wall of the sealing groove 6 to form an effective sealing barrier. This not only prevents external media (such as gas, liquid or dust) from infiltrating into the system through the connection part but also avoids various problems caused by internal medium leakage, such as performance degradation and frequent failures. The connecting body 1, the connecting portion 2, the connecting sleeve 3 and the fixed circlip 4 are all made of metal materials.

[0032] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A anti - detachment rotary joint, comprising a connecting body (1), one end of the connecting body (1) is provided with a connecting part (2) extending outwards, and a connecting sleeve (3) is installed on the connecting part (2); It is characterized in that, The outer wall of the connecting part (2) has a connecting groove (21), a fixing circlip (4) is installed in the connecting groove (21), and a first fixing groove (31) matching with the fixing circlip (4) is arranged on the inner wall of the connecting end of the connecting sleeve (3). The cooperation connection of the connecting groove (21), the fixing circlip (4) and the first fixing groove (31) can fixedly install the connecting sleeve (3) on the connecting part (2) of the connecting body (1); The fixing circlip (4) is a ring with an opening. A first inclined surface (41) with a gradually decreasing diameter is arranged on the inner ring wall of the fixing circlip (4), and a second inclined surface (211) matching with the first inclined surface (41) is arranged on the inner wall of the connecting groove (21). The first inclined surface (41) is in sliding contact with the second inclined surface (211).

2. The anti-rotation joint according to claim 1, characterized in that, The bottom of the inner ring of the fixing circlip (4) is in contact with the side wall of the connecting groove (21), and the bottom of the outer ring of the fixing circlip (4) is in contact with the side wall of the first fixing groove (31).

3. The anti-loosening rotary joint according to claim 2, characterized in that, The inner ring diameter of the fixing circlip (4) is smaller than the outer ring diameter of the connecting groove (21), and the outer ring diameter of the fixing circlip (4) is larger than the inner ring diameter of the first fixing groove (31).

4. The anti-loosening rotary joint according to claim 3, characterized in that, A second fixing groove (5) extending inwards is arranged on the outside of the connecting part (2) of the connecting body (1), and the connecting end of the connecting sleeve (3) is in cooperation connection with the second fixing groove (5).

5. The anti-rotation joint according to claim 4, characterized in that, A sealing groove (6) is arranged on the connecting part (2), and a rubber sealing ring is installed inside the sealing groove (6).

6. The anti-loosening rotary joint according to claim 4, wherein, A plurality of sealing grooves (6) are arranged on the connecting part (2), and a rubber sealing ring is installed inside each sealing groove (6).

7. A anti-rotation joint according to any one of claims 1-6, characterized in that, The connecting body (1), the connecting part (2), the connecting sleeve (3) and the fixing circlip (4) are all made of metal materials.

Images