A combined rotary joint

Abstract

This invention provides a combined rotary joint, including a stator body and a rotor body mounted on the side of the stator body. The stator body has a stator tube interface, and the rotor body has a rotor tube interface. Both the stator tube interface and the rotor tube interface are equipped with clamping components. Each clamping component includes a clamping ring, a fixing ring, and a sliding ring, with two clamping rings. This invention allows for clamping and disassembling of the hose by pressing the sliding ring with one hand, freeing the operator's other hand to hold the hose stably and easily complete the connection operation with the stator tube interface or rotor tube interface. This effectively simplifies the installation and disassembly process and reduces operational difficulty. Utilizing the elastic restoring force of spring two, the push block applies pressure to the contact block, causing the two clamping rings to come close together and firmly clamp the hose, effectively preventing the hose from falling off during use and reducing leakage problems caused by loose connections.

Description

Technical Field

[0001] This utility model belongs to the field of rotary joint technology, and more specifically, it relates to a combined rotary joint. Background Technology

[0002] Rotary joints are pipe connection devices where the connected pipes can rotate relative to each other. They can be used to transmit various media such as gas, liquid, and oil. Types of rotary joints include: hydraulic rotary joints, high-pressure rotary joints, multi-channel rotary joints, high-speed rotary joints, high-temperature rotary joints, single-channel rotary joints, and combined rotary joints. However, existing combined rotary joints have certain inconveniences in use.

[0003] For example, a Chinese patent discloses a combined rotary joint, publication number: CN220870329U, which "the fastening cylinder can fix and clamp the hose connected to the stator tube interface and the rotor tube interface through the internal limiting rod and the anti-slip fastening pad during use, which can improve the stability of the connection between the stator tube interface and the rotor tube interface, prevent the hose from falling off, and prevent leakage." However, in actual use, the above patent is not convenient enough for clamping the hose, is inconvenient to use, and has poor fixing effect on the hose. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a combined rotary joint, which is achieved by the following specific technical means: A combined rotary joint includes a stator body and a rotor body mounted on the side of the stator body. The stator body has a stator tube interface, and the rotor body has a rotor tube interface. Both the stator tube interface and the rotor tube interface are provided with clamping assemblies. Each clamping assembly includes a clamping ring, a fixing ring, and a sliding ring. There are two clamping rings, both of which are arc-shaped and used to clamp and fix a flexible hose. Contact blocks are fixedly installed at opposite ends of the two clamping rings. Push blocks are installed at both ends of the sliding ring. The two push blocks respectively abut the surfaces of the two contact blocks, and the abutting surfaces are beveled. Two springs are installed on each clamping ring, and a second spring is fixedly connected between the sliding ring and the fixing ring.

[0005] Furthermore, the fixing ring is fixedly sleeved on the stator tube interface or the rotor tube interface, and the slip ring is slidably installed on the stator tube interface or the rotor tube interface, with the slip ring located above the fixing ring.

[0006] Furthermore, there are four springs of type two, which are equidistantly distributed in a circle. Four limiting rods of type two are fixedly installed equidistantly on the upper end of the fixed ring. Each limiting rod of type two is movably sleeved on the spring of type two, and each limiting rod of type two movably passes through the slip ring.

[0007] Furthermore, connecting rods are fixedly installed at both ends of the slip ring, and each push block is fixedly connected to the connecting rod.

[0008] Furthermore, each of the contact blocks has a connecting block fixedly installed at both ends, and each connecting block is fixedly connected to the outer wall of the stator tube interface or the rotor tube interface through a spring. Each connecting block has a limiting rod that moves through it, and each spring is movably sleeved on the limiting rod.

[0009] Furthermore, the two clamping rings are located at the upper port of the stator tube interface or the rotor tube interface.

[0010] Compared with the prior art, the present invention has the following beneficial effects: 1. This modular rotary joint allows for clamping and disassembling of the hose by pressing the slip ring with one hand. The operator can use the other hand to hold the hose stably and easily complete the connection operation with the stator tube interface or rotor tube interface. This effectively simplifies the installation and disassembly process and reduces the difficulty of operation. Utilizing the elastic restoring force of the second spring, the push block is pushed to apply pressure to the contact block, so that the two clamping rings come close together and firmly clamp the hose. This can effectively prevent the hose from falling off during use and reduce leakage problems caused by loose connection.

[0011] Second, the first limit rod precisely limits the movement of the contact block and the clamping ring, ensuring that the two clamping rings move stably only in the preset direction, avoiding unnecessary positional deviations and ensuring the accuracy of the clamping action; the second limit rod limits the movement of the slip ring, connecting rod and push block, making their movement trajectory stable, further ensuring the overall stability of the clamping assembly. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall combined rotary joint of this utility model.

[0013] Figure 2 This is a schematic diagram of the clamping component of this utility model.

[0014] Figure 3 This is a schematic diagram of the contact block of this utility model.

[0015] Figure 4 This is a schematic diagram of the slip ring of this utility model.

[0016] In the diagram, the correspondence between component names and drawing numbers is as follows: 1. Stator body; 2. Rotor body; 3. Stator tube interface; 4. Rotor tube interface; 5. Clamping ring; 51. Contact block; 52. Connecting block; 53. Spring 1; 54. Limiting rod 1; 6. Fixing ring; 61. Spring 2; 62. Limiting rod 2; 7. Slip ring; 71. Connecting rod; 72. Push block. Detailed Implementation

[0017] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0018] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example

[0020] As attached Figure 1 To be continued Figure 4 As shown: This utility model provides a combined rotary joint, including a stator body 1 and a rotor body 2 installed on the side of the stator body 1. A stator tube interface 3 is installed on the stator body 1, and a rotor tube interface 4 is installed on the rotor body 2. Both the stator tube interface 3 and the rotor tube interface 4 are provided with clamping assemblies, which include clamping rings 5, fixing rings 6, and sliding rings 7, for clamping and fixing the hose. Contact blocks 51 are fixedly installed at opposite ends of the two clamping rings 5, and push blocks 72 are installed at both ends of the sliding ring 7. The two push blocks 72 respectively conform to the surfaces of the two contact blocks 51. Furthermore, the surfaces that come into contact with each other are all designed with bevels. Each clamping ring 5 is equipped with two springs 53. A spring 61 is fixedly connected between the slip ring 7 and the fixed ring 6. By moving the two contact blocks 51 closer to each other, the two clamping rings 5 ​​move closer to each other, thereby clamping and fixing the hose. This can prevent the hose from falling off and leaking. The hose can be clamped and disassembled by pressing the slip ring 7 with one hand, which makes it convenient for the operator to hold the hose with the other hand and connect it to the stator tube interface 3 or the rotor tube interface 4, making it more convenient to use. There are two clamping rings 5, both of which are arc-shaped, which fits the shape of the hose better and has a larger contact area with the hose, thus making it more effective in fixing the hose. The fixed ring 6 is fixedly sleeved on the stator tube interface 3 or the rotor tube interface 4, and the slip ring 7 is slidably installed on the stator tube interface 3 or the rotor tube interface 4. The slip ring 7 is located above the fixed ring 6. The clamping assembly can be used by pressing the slip ring 7, which is convenient to operate. There are four springs 61, which are equidistantly distributed in a circle. Four limiting rods 62 are fixedly installed equidistantly on the upper end of the fixed ring 6. Each limiting rod 62 is movably sleeved on the spring 61. Each limiting rod 62 movably passes through the slip ring 7. The limiting rods 62 movably pass through the slip ring 7 and limit the movement of the slip ring 7, the connecting rod 71 and the push block 72, making their movement more stable and ensuring the stable operation of the clamping assembly. Both ends of the slip ring 7 are fixedly installed with connecting rods 71, and each push block 72 is fixedly connected to the connecting rod 71 respectively; Each contact block 51 has a connecting block 52 fixedly installed at both ends. Each connecting block 52 is fixedly connected to the outer wall of the stator tube interface 3 or the rotor tube interface 4 by a spring 53. Each connecting block 52 has a limit rod 54 that moves through it. Each spring 53 is movably sleeved on the limit rod 54. The limit rod 54 limits the movement of the contact block 51 and the clamping ring 5, making the movement of the two clamping rings 5 ​​more stable and preventing positional displacement in other directions. Two clamping rings 5 ​​are located at the upper port of the stator tube interface 3 or the rotor tube interface 4, and are used to clamp and fix the hose.

[0021] The working principle of this embodiment: Step 1: During use, the guide hose can be connected to the stator tube interface 3 and rotor tube interface 4 as needed. During connection and installation, press the slip ring 7 to move it downwards. This downward movement of the slip ring 7 causes the two connecting rods 71 ​​to move downwards, which in turn causes the two contact blocks 51 to move downwards. This creates a gap between the push block 72 and the contact block 51. Utilizing the elasticity of the spring 53, the two clamping rings 5 ​​expand outwards (moving away from each other), widening the gap between them. Then, the hose is inserted through the two clamping rings 5 ​​into the stator tube interface 3 or rotor tube interface 4. After insertion... Release the slip ring 7. Utilize the elastic restoring action of spring 61 to reset the slip ring 7. The elastic force of the slip ring 7 is greater than that of spring 53, causing the two push blocks 72 to apply force to the contact block 51. This causes the two contact blocks 51 to move closer to each other. The movement of the two contact blocks 51 towards each other drives the two clamping rings 5 ​​to move closer to each other, thus clamping and fixing the hose. This prevents the hose from falling off and leaking. The hose can be clamped and disassembled by pressing the slip ring 7 with one hand, allowing the operator to hold the hose with the other hand and connect it to the stator tube interface 3 or rotor tube interface 4, making it more convenient to use. Step 2: Limiting rod 1 54 limits the movement of contact block 51 and clamping ring 5, making the movement of the two clamping rings 5 ​​more stable and preventing positional deviation in other directions. Limiting rod 2 62 moves through slip ring 7, limiting the movement of slip ring 7, connecting rod 71 and push block 72, making their movement more stable and ensuring the stable operation of the clamping assembly.

[0022] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A combined rotary joint comprising a stator body (1) and a rotor body (2) mounted on the side end of the stator body (1), a stator pipe interface (3) is mounted on the stator body (1), a rotor pipe interface (4) is mounted on the rotor body (2), characterized in that: The stator pipe interface (3) and the rotor pipe interface (4) are provided with clamping assemblies, the clamping assemblies comprise clamping rings (5), fixing rings (6) and sliding rings (7), the number of the clamping rings (5) is two, the two clamping rings (5) are arc-shaped and used for clamping and fixing the hose; Wherein, the two ends of the two clamping rings (5) away from each other are fixedly provided with contact blocks (51), the two ends of the sliding ring (7) are provided with push blocks (72), the two push blocks (72) are respectively attached to the surfaces of the two contact blocks (51), and the attached surfaces are designed as inclined surfaces; Wherein, two spring ones (53) are installed on each clamping ring (5), and spring two (61) is fixedly connected between the sliding ring (7) and the fixing ring (6).

2. The combined rotary joint of claim 1, wherein: The fixing ring (6) is fixedly sleeved on the stator pipe interface (3) or the rotor pipe interface (4), the sliding ring (7) is slidingly installed on the stator pipe interface (3) or the rotor pipe interface (4), and the sliding ring (7) is located above the fixing ring (6).

3. The combined rotary union of claim 1, wherein: The number of the spring two (61) is four, which is distributed at equal intervals in a circle, four limiting rods two (62) are fixedly installed on the upper end of the fixing ring (6) at equal intervals in a circle, each limiting rod two (62) is movably sleeved on the spring two (61), and each limiting rod two (62) movably penetrates the sliding ring (7).

4. The combined rotary joint of claim 1, wherein: The two ends of the sliding ring (7) are fixedly provided with connecting rods (71), and each push block (72) is fixedly connected with the connecting rod (71).

5. The combined rotary joint of claim 1, wherein: The two ends of each contact block (51) are fixedly provided with connecting blocks (52), each connecting block (52) is fixedly connected with the outer wall of the stator pipe interface (3) or the rotor pipe interface (4) through the spring one (53), each connecting block (52) movably penetrates the limiting rod one (54), and each spring one (53) is movably sleeved on the limiting rod one (54).

6. The combined rotary joint of claim 1, wherein: The two clamping rings (5) are located at the upper port of the stator pipe interface (3) or the rotor pipe interface (4).

Images