一种伸缩旋转接头

Abstract

本实用新型属于管接头技术领域，尤其是涉及一种伸缩旋转接头，包括：接头本体，所述接头本体包括软质内管体和硬质外管体，所述软质内管体呈L形设置且密封滑动连接于硬质外管体的内壁；自适应伸缩机构，用于根据流体单位时间内的流量自适应调节接头本体的长度，所述自适应伸缩机构包括固定连接于软质内管体内壁的检测箱，所述检测箱的两侧壁上开设有多个通孔，所述检测箱的内部填充有多个直径相同的导电球体，所述通孔的直径小于导电球体的直径。本实用新型通过设置自适应伸缩机构，在对流体进行传输过程中，根据单位时间内流体的流量自适应调节接头的伸缩程度，提高接头与传输部件之间的密封效果，进而保证流体的输送效率和稳定性。

Claims

1. A rotary expansion joint, characterized by, include: The connector body (1) includes a soft inner tube (11) and a rigid outer tube (12). The soft inner tube (11) is L-shaped and is slidably connected to the inner wall of the rigid outer tube (12). An adaptive telescopic mechanism (2) is used to adaptively adjust the length of the connector body (1) according to the flow rate of the fluid per unit time. The adaptive telescopic mechanism (2) includes a detection box (21) fixedly connected to the inner wall of the soft inner tube (11). Multiple through holes (22) are opened on both sides of the detection box (21). The interior of the detection box (21) is filled with multiple conductive spheres (23) of the same diameter. The diameter of the through holes (22) is smaller than the diameter of the conductive spheres (23). Electrode plates (24) with opposite electrode directions are fixedly connected to the corresponding inner walls of the detection box (21). The soft inner tube (11) An excitation coil (25) is fixedly connected to the outer wall. A converter (26) and a PLC controller (27) are fixedly connected to the outer wall of the rigid outer tube (12). Slide grooves (28) are provided on the inner walls of the corresponding two sides of the rigid outer tube (12). A slider (29) fixedly connected to the outer wall of the soft inner tube (11) is slidably connected in each slide groove (28). Two electric telescopic rods (210) for driving the sliders (29) are provided inside the rigid outer tube (12). The PLC controller (27) controls the extension length of the electric telescopic rods (210) according to the flow signal transmitted by the converter (26).

2. The rotary expansion joint of claim 1, wherein, The soft inner tube (11) is made of polytetrafluoroethylene, and the rigid outer tube (12) is made of stainless steel.

3. The rotary expansion joint of claim 1, wherein, The conductive sphere (23) is made of metal.

4. The rotary expansion joint of claim 1, wherein, The soft inner tube (11) is equipped with a stirring mechanism (3) to ensure the uniform dispersion and stability of the conductive sphere (23) in the fluid. The stirring mechanism (3) includes a rotating rod (31) that is rotatably connected to the side wall of the detection box (21). The end of the rotating rod (31) away from the hard outer tube (12) extends to the outside of the detection box (21) and is fixedly connected to an axial flow fan blade (32). The part of the rotating rod (31) located inside the detection box (21) is fixedly connected to a spiral stirring rod (33).

5. The rotary expansion joint of claim 1, wherein, The rigid outer tube (12) has a liquid storage cavity (4) inside its circumferential sidewall. A piston ring (41) is slidably connected inside the liquid storage cavity (4). Multiple springs (42) arranged in a circular array are fixedly connected to the sidewall of the piston ring (41). All of the springs (42) extend outside the liquid storage cavity (4) and are fixedly connected to a sealing ring (43).

6. The rotary expansion joint of claim 5, wherein, An automatic compensation mechanism (5) is provided inside the periphery of the rigid outer tube (12) to automatically adjust the clamping force of the sealing ring (43) when the fluid flow rate changes per unit time. The automatic compensation mechanism (5) includes two liquid guiding chambers (51) opened inside the periphery of the rigid outer tube (12). The slide groove (28) is connected to the inside of the liquid storage chamber (4) through the corresponding liquid guiding chamber (51). The slider (29) is sealed to the corresponding slide groove (28). A transmission space is formed between the slide groove (28), the liquid guiding chamber (51) and the liquid storage chamber (4). The transmission space is filled with hydraulic oil.

7. The rotary expansion joint of claim 1, wherein, A connecting pipe (6) is fixedly connected to one side wall of the soft inner tube (11), and the end of the connecting pipe (6) away from the soft inner tube (11) is sealed and rotatably connected to a mounting base (61).

8. The rotary expansion joint of claim 7, wherein, A rotating mechanism (7) is provided between the soft inner tube (11) and the rigid outer tube (12) to prevent the connector body (1) from bending during extension and retraction, which would affect the normal flow of fluid. The rotating mechanism (7) includes a semi-circular gear (71) fixedly connected to the outer wall of the connecting pipe (6). A push rod (72) is fixedly connected to the end of the slider (29) away from the electric telescopic rod (210). An extension rod (73) is fixedly connected to the part of the push rod (72) that extends outside the rigid outer tube (12). The push rod (72) and the rigid outer tube (12) are in a sealed sliding connection. A rack (74) is fixedly connected to the extension rod (73). The rack (74) meshes with the semi-circular gear (71).

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