Rotary joint capable of realizing quick butt joint

Abstract

The utility model relates to the technical field of pipe joints, and discloses a quick butt joint rotary joint, which comprises a first rotary joint and a second rotary joint, the interface of the first rotary joint is sleeved with a clamping sleeve, and the interface of the second rotary joint is inserted with a steel ball locker. The outer ends of the steel ball locking devices are inserted into the clamping sleeve; the first ball heads are arranged on the upper side and the lower side of a connector of the first rotary connector, first limiting clamping grooves are formed in the clamping sleeves, and second ball heads are arranged on the two sides of a connector of the steel ball locker. According to the rotary joint capable of being quickly butted, a first ball head is firstly inserted into a vertical section of a first limiting clamping groove, and then a clamping sleeve is rotated, so that the first ball head is limited in a transverse section of the first clamping groove and is limited in the axial direction; therefore, the pipe joint is prevented from being accidentally separated due to external force such as pulling force, pressure or vibration in the using process, and the stability of connection is ensured.

Description

Technical Field

[0001] This utility model relates to the field of pipe fitting technology, specifically to a rotary joint that can be quickly connected. Background Technology

[0002] A rotary joint is a connecting and sealing device used to transfer fluid media (such as gas or liquid) from a stationary pipeline to rotating or reciprocating equipment. It maintains continuous media transfer while the equipment rotates and prevents leakage. Rotary joints are widely used in various industrial fields, including but not limited to papermaking, rubber, chemical, plastics, textile, printing and dyeing, steel, metallurgy, pharmaceutical, drying, food, and woodworking industries.

[0003] Common rotary joints are inserted into specific interfaces of equipment or pipes during use and then fixed by a snap-fit ​​mechanism or other fixing device to achieve quick positioning and installation. However, this method causes the rotary joint to wobble when it is connected because the snap-fit ​​between the rotary joint and the connecting pipe is under the same force during insertion, which reduces the sealing performance of the rotary joint after connection and cannot meet the working requirements of the rotary joint. Therefore, a rotary joint that can be quickly connected is proposed. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a rotary joint that can be quickly connected, thereby solving the technical problem that the rotary joint will wobble during connection due to the jamming caused by the force in the same direction between the rotary joint and the connecting pipe during insertion.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a rotary joint capable of quick docking, comprising:

[0008] The first rotary joint and the second rotary joint are both right-angle bends. The interface of the first rotary joint is fitted with a locking sleeve, and the interface of the second rotary joint is fitted with a steel ball locking device, with the outer end of the steel ball locking device inserted inside the locking sleeve.

[0009] The first ball head is installed on the upper and lower sides of the interface of the first rotary joint. The inside of the locking sleeve is provided with a first limiting groove. The interface of the steel ball locker is provided with a second ball head on both sides. The inside of the second rotary joint is provided with a second limiting groove. The first limiting groove and the second limiting groove are both L-shaped.

[0010] Preferably, the widths of the first and second limiting slots are both adapted to the diameters of the first and second ball heads, and the outer sides of the vertical sections of the first and second limiting slots both penetrate the interface end faces of the locking sleeve and the second rotary joint, facilitating docking.

[0011] Preferably, the vertical and horizontal sections of the first and second limiting slots form an L-shape, and the first and second limiting slots are arranged in a centrally symmetrical manner, so that when the locking sleeve is rotated, the ball heads on both the upper and lower sides can be inserted into the horizontal sections of the first and second limiting slots.

[0012] Preferably, the inner walls of both the first and second limiting slots are lined with rubber pads, and the inner sides of the horizontal sections of both the first and second limiting slots are arc-shaped. The added rubber pads improve the tightness of the engagement between the first and second ball heads and the first and second limiting slots.

[0013] Preferably, the ball locking device has a flow tube inserted inside, and a locking ball is engaged at the middle position of the outside of the flow tube. The ball locking device also has a limiting ball engaged inside, which improves the stability of the docking.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a rotary joint that can be quickly connected, and has the following features:

[0016] Beneficial effects:

[0017] This quick-connect rotary joint, by adding a first ball head to the outside of the first rotary joint, ensures that when the locking sleeve is inserted, the first ball head first inserts into the vertical section of the first limiting groove, and then the locking sleeve is rotated, thus confining the first ball head within the horizontal section of the first groove. The ball locking device works similarly to the second rotary joint; after the first ball head is located in the horizontal section of the first limiting groove, it is confined within the horizontal section and restricted in the axial direction. This prevents the pipe joint from accidentally disengaging due to external forces such as tension, pressure, or vibration during use, ensuring the stability of the connection and facilitating operation. In terms of positioning, compared to some connection methods that require precise alignment of multiple components or the use of a large number of bolts and nuts for fastening, this docking method using ball joints and L-shaped grooves can achieve quick connection and improve the convenience of operation. Furthermore, because the structure of the ball joint and L-shaped groove is relatively simple and not easily damaged, this docking method can still maintain good connection performance during multiple disassembly and re-docking. Each time re-docking is performed, simply follow the steps of inserting the vertical section first and then rotating to ensure the stability of the connection. This method is suitable for occasions that require frequent equipment maintenance or component replacement. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the assembly structure of the first rotary joint and the snap-fit ​​assembly of this utility model;

[0020] Figure 3 This is a schematic diagram of the first limiting slot structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the assembly structure of the steel ball locking device and the second rotary joint of this utility model;

[0022] Figure 5 This is a cross-sectional structural diagram of the steel ball locking device of this utility model.

[0023] In the diagram: 1. First rotary joint; 2. Second rotary joint; 3. Steel ball locking device; 4. Locking sleeve; 5. First ball head; 6. First limiting slot; 7. Second ball head; 8. Second limiting slot; 9. Flow pipe; 10. Locking steel ball; 11. Limiting steel ball. Detailed Implementation

[0024] 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.

[0025] This utility model provides a technical solution for a quick-connect rotary joint, comprising a first rotary joint 1, a second rotary joint 2, a steel ball locking device 3, a locking sleeve 4, a first ball head 5, a first limiting groove 6, a second ball head 7, a second limiting groove 8, a flow tube 9, a locking steel ball 10, and a limiting steel ball 11.

[0026] Please see Figure 1 The first rotary joint 1 and the second rotary joint 2 are both right-angle bent pipes. The interface of the first rotary joint 1 is fitted with a locking sleeve 4, and the interface of the second rotary joint 2 is fitted with a steel ball locking device 3, and the outer end of the steel ball locking device 3 is inserted into the inside of the locking sleeve 4.

[0027] Please see Figure 2 and Figure 3 The first ball head 5 is installed on the upper and lower sides of the interface of the first rotary joint 1. The inside of the locking sleeve 4 is provided with a first limiting groove 6. Please refer to Figure 4The steel ball locking device 3 has a second ball head 7 installed on both sides of the interface. The second rotating joint 2 has a second limiting groove 8 opened in the internal insertion port. The first limiting groove 6 and the second limiting groove 8 are both L-shaped, so the groove structure includes a vertical section and a horizontal section. The width of the first limiting groove 6 and the second limiting groove 8 are adapted to the diameter of the first ball head 5 and the second ball head 7. The outer side of the vertical section of the first limiting groove 6 and the second limiting groove 8 penetrates the interface end face of the locking sleeve 4 and the second rotating joint 2. The vertical and horizontal sections of the limiting groove 6 and the second limiting groove 8 form an L-shape. By adding a first ball head 5 outside the first rotary joint 1, when the locking sleeve 4 is inserted, the first ball head 5 first inserts into the vertical section of the first limiting groove 6, and then the locking sleeve 4 is rotated, so that the first ball head 5 is confined within the horizontal section of the first groove 6. The ball locking device 3 works similarly to the second rotary joint 2. After the first ball head 5 is located within the horizontal section of the first limiting groove, it is confined within the horizontal section and restricted in the axial direction. This design prevents the pipe fitting from accidentally dislodging due to external forces such as tension, pressure, or vibration during use, ensuring the stability of the connection and facilitating positioning. Compared to some connection methods that require precise alignment of multiple components or the use of numerous bolts and nuts for tightening, this docking method using a ball head and limiting slots enables rapid connection, improving operational convenience. Furthermore, because the structure of the ball head and limiting slots is relatively simple and not easily damaged, this docking method maintains good connection performance even after multiple disassemblies and re-connections. Each time re-connection is performed, simply inserting the vertical section first and then rotating ensures connection stability. This method is suitable for applications requiring frequent equipment maintenance or component replacement. The first limiting slot 6 and the second limiting slot 8 are arranged in a centrally symmetrical manner. Both the inner walls of the first limiting slot 6 and the second limiting slot 8 are lined with rubber pads, and the inner sides of the horizontal sections of both the first limiting slot 6 and the second limiting slot 8 are arc-shaped. Please refer to [link / reference]. Figure 5 The ball locking device 3 has a flow tube 9 inserted inside, and a locking ball 10 is engaged in the middle position of the outside of the flow tube 9. A limiting ball 11 is engaged inside the ball locking device 3.

[0028] This solution adds a first ball head 5 to the outside of the first rotary joint 1. When the locking sleeve 4 is inserted, the first ball head 5 first inserts into the vertical section of the first limiting groove 6, and then the locking sleeve 4 is rotated, thus confining the first ball head 5 within the horizontal section of the first groove 6. The ball locking device 3 works similarly to the second rotary joint 2. After the first ball head 5 is located within the horizontal section of the first limiting groove, it is confined within that section, thus restricting its axial direction. This prevents the pipe joint from accidentally disengaging due to external forces such as tension, pressure, or vibration during use, ensuring the stability of the connection and facilitating operation. In terms of positioning, compared to some connection methods that require precise alignment of multiple components or the use of a large number of bolts and nuts for fastening, this docking method, which uses a ball head and a limiting slot, can achieve a quick connection and improve the convenience of operation. Furthermore, because the structure of the ball head and the limiting slot is relatively simple and not easily damaged, this docking method can still maintain good connection performance during multiple disassembly and re-docking. Each time it is re-docking, simply follow the steps of inserting the vertical section first and then rotating to ensure the stability of the connection. This method is suitable for occasions that require frequent equipment maintenance or component replacement.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] 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 quick-connect rotary joint, comprising a first rotary joint and a second rotary joint, wherein both the first rotary joint and the second rotary joint are right-angle bends, characterized in that: The interface of the first rotary joint is fitted with a locking sleeve, and the interface of the second rotary joint is fitted with a steel ball locking device, with the outer end of the steel ball locking device inserted inside the locking sleeve. The first rotary joint has a first ball head installed on both sides of the interface, the locking sleeve has a first limiting groove inside, the ball locking device has a second ball head installed on both sides of the interface, the second rotary joint has a second limiting groove inside the insertion port, and the first limiting groove and the second limiting groove are both L-shaped.

2. The quick-connect rotary joint according to claim 1, characterized in that: The vertical and horizontal sections of the first and second limiting slots form an L-shape, and the first and second limiting slots are arranged in a centrally symmetrical manner.

3. The quick-connect rotary joint according to claim 1, characterized in that: The widths of the first and second limiting slots are both adapted to the diameters of the first and second ball heads, and the outer sides of the vertical sections of the first and second limiting slots both penetrate the interface end faces of the locking sleeve and the second rotary joint.

4. The quick-connect rotary joint according to claim 1, characterized in that: The inner walls of both the first and second limiting slots are lined with rubber pads, and the inner sides of the horizontal sections of both the first and second limiting slots are arc-shaped.

5. The quick-connect rotary joint according to claim 1, characterized in that: The ball locking device has a flow tube inserted inside, and a locking ball is engaged in the middle position of the outside of the flow tube. A limiting ball is also engaged inside the ball locking device.

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