Quick-fit rotary joint

Abstract

The utility model provides a quick assembly and disassembly type swivel joint relates to swivel joint technical field, including the mounting bush, the first limit ring is fixedly connected with the mounting bush outer surface, the movable bush is sleeved with the mounting bush outer surface, the rotary connection pipe is sleeved with the mounting bush inboard. In the utility model, when connecting the mounting bush and the rotary connection pipe, first need to move the movable bush to the active state, provide the space for the insertion of rotary connection pipe, after promoting the movable bush, the rotary connection pipe can enter the mounting bush smoothly, the force that adds promotes the interaction of movable ball and movable rod, forms the activity space, and further creates the condition for the insertion of rotary connection pipe, after the insertion of rotary connection pipe, the elasticity of spring makes the movable bush restore the original position, promotes movable ball movement, further drives movable rod displacement, until movable ball is guided limit groove, ensure that the rotary connection pipe is accurate limit, prevent the separation, limit groove not only limit the separation, still guarantee that the rotary connection pipe can rotate freely after the insertion.

Description

Technical Field

[0001] This utility model relates to the field of rotary joint technology, and in particular to a quick-installation and disassembly rotary joint. Background Technology

[0002] The rotary joint ensures smooth rotation and reliable sealing performance through built-in bearings and seals. Fluid enters the rotary joint from the fixed port, passes through the built-in bearings and seals, allowing the rotating parts to rotate freely.

[0003] In existing technologies, tightening or loosening threads with a wrench is extremely inconvenient, and repeated rotation is time-consuming and inefficient. Frequent disassembly and assembly can also cause thread wear and stripping, leading to the scrapping of the connector and increasing maintenance costs. If threaded connections are to be able to rotate after connection, additional complex components such as bearings are required, which not only increases costs but also makes the structure more complex. Although snap-fit ​​connections are relatively easy to install, they have a low fault tolerance rate. During installation, the snap-fit ​​slots must be precisely aligned, and even a slight deviation will make it difficult to insert. In addition, some snap-fits are difficult to disassemble, and some one-time designed snap-fits are easily damaged by forced disassembly, affecting reuse. Utility Model Content

[0004] This utility model mainly provides a quick-connect and disassemble rotary joint that is easy to plug in, prevents leakage and detachment.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a quick-release rotary joint, comprising a mounting sleeve, a first limiting ring fixedly connected to the outer surface of the mounting sleeve, a movable sleeve sleeved on the outer surface of the mounting sleeve, a rotary connecting tube sleeved on the inner side of the mounting sleeve, a limiting groove formed on the outer surface of one end of the rotary connecting tube, a plurality of movable holes formed on one end of the mounting sleeve, a movable rod slidably connected to the inner side of the movable holes, movable balls fixedly connected to both ends of the movable rod, a limiting block fixedly connected to one end of the movable sleeve, and a spring sleeved on the outer surface of the mounting sleeve, the spring being located between the first limiting ring and the limiting block.

[0006] Preferably, the movable ball at the bottom of the movable rod extends to the inside of the limiting groove, and a limiting sleeve is fixedly connected to the outer surface of one end of the rotating connecting tube.

[0007] Preferably, the limiting sleeve is fitted onto the outer surface of the mounting sleeve, and one end of the limiting sleeve has an insertion groove.

[0008] Preferably, one end of the movable sleeve is inserted into the insertion slot.

[0009] Preferably, one end of the mounting sleeve has a sealing groove, and a sealing ring is installed inside the sealing groove.

[0010] Preferably, the sealing ring is fitted onto the outer surface of the rotary connecting pipe.

[0011] Preferably, a second limiting ring is fixedly connected to the inner wall of the mounting sleeve, and the second limiting ring abuts against the rotating connecting pipe.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, when connecting the mounting sleeve and the rotating connecting tube, the movable sleeve first needs to be moved to the movable state to provide space for the insertion of the rotating connecting tube. After pushing the movable sleeve, the rotating connecting tube can smoothly enter the mounting sleeve. The applied force causes the movable ball and the movable rod to interact, forming a movable space, which in turn creates conditions for the insertion of the rotating connecting tube. After the rotating connecting tube is inserted, the elasticity of the spring causes the movable sleeve to return to its original position, pushes the movable ball to move, and further drives the movable rod to move until the movable ball is guided to the limiting groove, ensuring that the rotating connecting tube is accurately limited and preventing it from detaching. The limiting groove not only restricts detachment, but also ensures that the rotating connecting tube can rotate freely after insertion.

[0014] 2. In this utility model, the connection between the mounting sleeve and the rotating connecting pipe is enhanced by a series of mating components to ensure the stability and sealing of the connection. The limiting sleeve and the movable sleeve cooperate to enhance the stability of the connection point, prevent loosening or displacement, and play a mechanical locking role. At the same time, it protects the connection and prevents loss of sealing. The insertion groove on one side of the limiting sleeve and the insertion part of the movable sleeve are precisely matched to enhance the connection stability. When the rotating connecting pipe is inserted, the second limiting ring ensures that the pipe is accurately joined by limiting the insertion position, avoiding poor sealing or wear caused by insertion deviation. The first limiting ring and the spring work together to store elastic energy by compressing the spring and provide auxiliary force to ensure that the movable sleeve is smoothly reset and maintain the stability of the component function. Attached Figure Description

[0015] Figure 1 This is a perspective view of a quick-release rotary joint proposed in this utility model;

[0016] Figure 2 This is a cross-sectional view of a quick-release rotary joint proposed in this utility model;

[0017] Figure 3 This is a cross-sectional structural diagram of a quick-assembly and disassembly rotary joint proposed in this utility model;

[0018] Figure 4 This is a schematic diagram of the disassembled structure of a quick-release rotary joint proposed in this utility model.

[0019] Legend: 1. Mounting sleeve; 11. First limiting ring; 12. Second limiting ring; 13. Sealing ring; 14. Movable hole; 15. Sealing groove; 2. Movable sleeve; 21. Limiting block; 3. Limiting sleeve; 31. Insertion groove; 4. Rotary connecting pipe; 41. Limiting groove; 5. Spring; 6. Movable rod; 61. Movable ball. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] Please see Figure 1 - Figure 4 This utility model provides a technical solution: a quick-release rotary joint, including a mounting sleeve 1, a first limiting ring 11 fixedly connected to the outer surface of the mounting sleeve 1, a movable sleeve 2 sleeved on the outer surface of the mounting sleeve 1, a rotary connecting tube 4 sleeved on the inner side of the mounting sleeve 1, a limiting groove 41 opened on the outer surface of one end of the rotary connecting tube 4, a plurality of movable holes 14 opened on one end of the mounting sleeve 1, a movable rod 6 slidably connected to the inner side of the movable holes 14, movable balls 61 fixedly connected to both ends of the movable rod 6, a limiting block 21 fixedly connected to one end of the movable sleeve 2, and a spring 5 sleeved on the outer surface of the mounting sleeve 1, the spring 5 being located between the first limiting ring 11 and the limiting block 21.

[0023] When connecting the mounting sleeve 1 and the rotating connecting tube 4, the movable sleeve 2 must first be moved to the movable state. Specifically, by moving the movable sleeve 2, the user can create space for the insertion of the rotating connecting tube 4. Once the movable sleeve 2 is pushed, the rotating connecting tube 4 can smoothly enter the interior of the mounting sleeve 1. During this process, the applied force causes the movable ball 61 and the movable rod 6 to interact, creating a certain amount of space between them. This space is crucial because it allows the movable ball 61 and the movable rod 6 to move upwards, thus creating suitable conditions for the insertion of the rotating connecting tube 4.

[0024] Once the rotating connecting tube 4 is successfully inserted into the mounting sleeve 1, the spring 5, through its inherent elasticity, forces the movable sleeve 2 to return to its original position. At this time, the movable sleeve 2 begins to push the movable ball 61 to move, further causing the movable rod 6 to displace. As the movable rod 6 moves, the movable ball 61 at one end is guided into the limiting groove 41. The existence of the limiting groove 41 plays an important role here, ensuring that the rotating connecting tube 4 can be accurately limited after installation, thereby preventing the rotating connecting tube 4 from detaching from the mounting sleeve 1.

[0025] The limiting groove 41 not only prevents the rotary connecting pipe 4 from detaching, but also ensures that the rotary connecting pipe 4 can rotate freely after insertion. Through this design, the rotary connecting pipe 4 can have the necessary rotation function while ensuring stable installation, so that the connection structure can meet the needs of fixation and flexibility in practical applications.

[0026] like Figure 3 As shown, the movable ball 61 at the bottom of the movable rod 6 extends to the inside of the limiting groove 41, and the limiting sleeve 3 is fixedly connected to the outer surface of one end of the rotating connecting tube 4. The movable ball 61 is guided into the limiting groove 41, which not only restricts the rotating connecting tube 4 from detaching, but also ensures that the rotating connecting tube 4 can rotate freely after insertion.

[0027] like Figure 2 As shown, the limiting sleeve 3 is fitted onto the outer surface of the mounting sleeve 1, and one end of the limiting sleeve 3 has an insertion groove 31. The limiting sleeve 3 can further protect the connection between the mounting sleeve 1 and the rotating connecting pipe 4, and avoid loss of sealing due to long-term use or external force.

[0028] like Figure 4 As shown, one end of the movable sleeve 2 is inserted into the insertion slot 31. The insertion slot 31 and the insertion part of one end of the movable sleeve 2 are precisely matched, thereby enhancing the stability of the connection point.

[0029] like Figure 3 As shown, a sealing groove 15 is provided at one end of the mounting sleeve 1, and a sealing ring 13 is installed inside the sealing groove 15. This can improve the sealing performance.

[0030] like Figure 3 As shown, the sealing ring 13 is fitted onto the outer surface of the rotating connecting pipe 4. This prevents leakage during rotation after connection.

[0031] like Figure 3 As shown, a second limiting ring 12 is fixedly connected to the inner wall of the mounting sleeve 1, and the second limiting ring 12 abuts against the rotary connecting tube 4. The second limiting ring 12 ensures that the rotary connecting tube 4 can be accurately inserted into the predetermined engagement position by limiting the insertion position of the rotary connecting tube 4.

[0032] The method of use and working principle of this device are as follows: When installing the connecting sleeve 1 and the rotating connecting tube 4, the movable sleeve 2 must be moved first, and then the rotating connecting tube 4 is inserted. During this process, the rotating connecting tube 4 will apply a force to the movable ball 61, and at the same time provide space for the movable ball 61 and the movable rod 6 to move upward, thereby ensuring that the rotating connecting tube 4 is smoothly inserted into the installation sleeve 1.

[0033] After insertion, spring 5 will push movable sleeve 2 to move due to its elasticity, and movable sleeve 2 will in turn push movable ball 61; when movable rod 6 moves, it will drive movable ball 61 at one end to embed into limiting groove 41, thereby limiting the rotation connecting tube 4 and completing the installation of rotation connecting tube 4. The design of limiting groove 41 can prevent rotation connecting tube 4 from detaching from mounting sleeve 1, while ensuring that rotation connecting tube 4 can rotate freely.

[0034] While the mounting sleeve 1 is inserted into the rotating connecting pipe 4, the limiting sleeve 3 is also fitted onto the outer surface of the mounting sleeve 1, and the insertion groove 31 on one side of the limiting sleeve 3 is inserted into one end of the movable sleeve 2. This design not only improves the firmness of the connection, but also further protects the connection between the mounting sleeve 1 and the rotating connecting pipe 4, preventing damage to the seal.

[0035] Furthermore, during the insertion of the rotating connecting tube 4, the second limiting ring 12 can restrict the insertion position of the rotating connecting tube 4, while ensuring that the limiting groove 41 and the movable hole 14 are precisely aligned. During the operation of the movable sleeve 2, the movable sleeve 2, in conjunction with the first limiting ring 11, can compress the spring 5, causing the spring 5 to return to its original position through elastic assistance of the movable sleeve 2.

[0036] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A quick-release rotary joint, comprising a mounting sleeve (1), wherein a first limiting ring (11) is fixedly connected to the outer surface of the mounting sleeve (1), characterized in that: The outer surface of the mounting sleeve (1) is fitted with a movable sleeve (2), and the inner side of the mounting sleeve (1) is fitted with a rotating connecting tube (4). A limiting groove (41) is opened on the outer surface of one end of the rotating connecting tube (4). A plurality of movable holes (14) are opened on one end of the mounting sleeve (1). A movable rod (6) is slidably connected to the inner side of the movable hole (14). Movable balls (61) are fixedly connected to both ends of the movable rod (6). A limiting block (21) is fixedly connected to one end of the movable sleeve (2). A spring (5) is fitted on the outer surface of the mounting sleeve (1). The spring (5) is located between the first limiting ring (11) and the limiting block (21).

2. The quick-release rotary joint according to claim 1, characterized in that: The movable ball (61) at the bottom of the movable rod (6) extends to the inside of the limiting groove (41), and a limiting sleeve (3) is fixedly connected to the outer surface of one end of the rotating connecting tube (4).

3. A quick-release rotary joint according to claim 2, characterized in that: The limiting sleeve (3) is fitted onto the outer surface of the mounting sleeve (1), and one end of the limiting sleeve (3) is provided with an insertion groove (31).

4. A quick-release rotary joint according to claim 1, characterized in that: One end of the movable sleeve (2) is inserted into the insertion slot (31).

5. A quick-release rotary joint according to claim 1, characterized in that: The mounting sleeve (1) has a sealing groove (15) at one end, and a sealing ring (13) is installed inside the sealing groove (15).

6. A quick-release rotary joint according to claim 5, characterized in that: The sealing ring (13) is fitted onto the outer surface of the rotating connecting pipe (4).

7. A quick-release rotary joint according to claim 1, characterized in that: The inner wall of the mounting sleeve (1) is fixedly connected to a second limiting ring (12), which abuts against the rotating connecting pipe (4).

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