Rotatable pipe joint

Abstract

The utility model discloses a rotatable type pipe joint in the field of pipe joints, and aims to solve the problem that in the prior art, when a hose is rotated, the hose twists and deforms, and the flow of fluid passing through the interior of the hose is affected. One end of the male head and one end of the female head are rotatably connected, the other end of the male head and the other end of the female head are respectively connected with a hose connector on a hose, an O-shaped sealing ring and a C-shaped elastic ring are arranged at the joint of the male head and the female head, and through holes are formed in the male head and the female head. When equipment connected with one end of the hose rotates, the male head and the female head are rotatably connected, so that the hose at the other end cannot be driven to rotate, the hose cannot be distorted and deformed, and the passing flow is not changed during rotation; and the O-shaped sealing ring and the anti-drop C-shaped elastic ring are used for ensuring the sealing performance and the stability of the connection of the male head and the female head.

Description

Technical Field

[0001] The utility model relates to the field of pipe joints, in particular to a rotatable pipe joint. Background Art

[0002] In the mold tooling design process, movable core pullers or movable structures with water cooling or hydraulic systems are often used. Usually, these movable structures are connected to the tooling body through hoses. When the movable structure such as the core puller moves linearly, the hose can be used normally as long as the bending radius is greater than the minimum bending radius of the selected hose. When the movable structure such as the core puller moves rotationally, the hose will also rotate along the axial direction. At this time, the hose will be twisted and deformed. The twisting and deformation of the hose will affect the flow rate and the service life of the hose. Utility Model Content

[0003] The purpose of this application is to provide a rotatable pipe joint, which is connected by a male head and a female head that can be rotatably connected, and an O-ring and an anti-slip C-type elastic ring are provided at the connection to ensure the sealing and stability of the connection between the male head and the female head.

[0004] In order to solve the above technical problems, the following technical solutions are adopted:

[0005] The present application provides a rotatable pipe joint, comprising a male head and a female head, wherein one end of the male head and one end of the female head are coaxially rotatably connected, and the other ends of the male head and the female head are respectively connected to hose connectors on a hose, an O-ring and a C-ring are provided at the connection between the male head and the female head, and a through hole is opened inside the male head and the female head, and the through hole is connected to the interior of the hose for passing fluid.

[0006] Optionally, the male head includes a male tail end connected to the hose connector and a male head end connected to the female head, an O-ring mounting groove and a C-type elastic ring anti-slip groove are provided on the outer surface of the male head end, and a C-type elastic ring guide surface is provided on one side of the O-ring mounting groove.

[0007] Optionally, the female head includes a female tail end connected to the hose connector and a female head end connected to the male head, and a C-shaped elastic ring mounting groove and an O-ring guide surface are provided on the inner wall of the female head end, and an O-ring sealing hole is provided on the side of the O-ring guide surface away from the end of the female tail end.

[0008] Optionally, the male end is cooperatively connected with the female end, the C-type elastic ring anti-slip groove and the C-type elastic ring mounting groove are cooperatively installed with the C-type elastic ring, the O-type sealing ring mounting groove and the O-ring sealing hole are cooperatively installed with the O-ring, and the C-type elastic ring guide surface and the O-ring guide surface are in contact and cooperative.

[0009] Optionally, a male connecting thread is provided on the inner wall of the male tail end, and the hose connector is cooperatively connected to the male connecting thread.

[0010] Optionally, a male connecting thread is provided on the outer surface of the male tail end, and the hose connector is cooperatively connected to the male connecting thread. An ED sealing ring is provided on the side of the male connecting thread away from the end of the male tail end, and the hose connector is sleeved on the outer surface of the male tail end, and the sealing of the connection is ensured by the ED sealing ring.

[0011] Optionally, the outer surface of the male tail end is provided with a male long thread. After the hose is inserted into the through hole of the male, the hose connector on the hose is connected with the male long thread to install the hose.

[0012] Optionally, a female connecting thread is provided on the outer surface of the female tail end, and the hose connector is connected to the female connecting thread in cooperation. An ED sealing ring is provided on the side of the female connecting thread away from the end of the female tail end, and the sealing of the connection is ensured by the ED sealing ring.

[0013] Optionally, two O-rings are provided at the connection between the male and female heads.

[0014] Optionally, the connection between the male and female heads is provided with an axial fit clearance and a radial fit clearance, wherein the axial fit clearance is in the range of 0.2-0.3, and the radial fit clearance is in the range of 0.1-0.2.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The utility model is provided with a male head and a female head, and the male head and the female head are rotatably connected. The other end of the male head and the female head is connected to the hose connector. When the equipment connected to one end of the hose rotates, the male head and the female head are rotatably connected, and the hose at the other end will not be driven to rotate, thereby ensuring that the hose will not be twisted and deformed. The flow rate passing through the hose remains unchanged during rotation, and no twisting occurs, which will not affect the service life of the hose. An O-ring and an anti-slip C-type elastic ring are provided at the connection between the male head and the female head to ensure the sealing and stability of the connection between the male head and the female head.

[0017] 2. When the outer surface of the male or female head of the utility model is sleeved with the hose connector, a sealing ED ring is provided on the outer surface of the male or female head to ensure the sealing of the connection between the male or female head and the hose. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the connection state of the male and female connectors in the embodiment of the present utility model;

[0019] Figure 2 This is one of the schematic diagrams of the male connector structure in the embodiment of the present utility model;

[0020] Figure 3 This is the second schematic diagram of the male connector structure in the embodiment of the present utility model;

[0021] Figure 4 This is one of the schematic diagrams of the female connector structure in the embodiment of the present utility model;

[0022] Figure 5 This is the second schematic diagram of the female connector structure in the embodiment of the present utility model;

[0023] Figure 6 This is one of the schematic diagrams of the overall structure of the male and female connectors in the embodiment of the present utility model;

[0024] Figure 7 This is the second schematic diagram of the overall structure of the male and female connectors in the embodiment of the present utility model;

[0025] Figure 8 This is the third schematic diagram of the overall structure of the male and female connectors in the embodiment of the present utility model;

[0026] Figure 9 This is the fourth schematic diagram of the overall structure of the male and female connectors in the embodiment of the present utility model.

[0027] Description of reference numerals:

[0028] 1. Male connector; 2. Female connector; 3. ED sealing ring; 4. O-ring; 5. C-type elastic ring; 6. O-ring mounting groove; 7. C-type elastic ring guide surface; 8. C-type elastic ring anti-slip groove; 9. Male connector thread; 10. Female connector thread; 11. ED sealing ring mounting groove; 12. O-ring sealing hole; 13. O-ring guide surface; 14. C-type elastic ring mounting groove; 15. Axial fit clearance; 16. Radial fit clearance; 17. Pagoda connector. DETAILED DESCRIPTION

[0029] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only some embodiments of the present application, rather than all embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present application, its application, or use.

[0030] Example 1

[0031] like Figure 1As shown, this embodiment provides a rotatable pipe joint, including a male head 1 and a female head 2, one end of the male head 1 and one end of the female head 2 are coaxially rotatably connected, the other ends of the male head 1 and the female head 2 are respectively connected to the hose connector on the hose, and an O-ring 4 and a C-type elastic ring 5 are provided at the connection between the male head 1 and the female head 2, and a through hole is opened inside the male head 1 and the female head 2, and the through hole is connected to the interior of the hose for passing fluid.

[0032] One end of the male connector 1 connects to the female connector 2, and the other end connects to a hose connector. The female connector 2 connects to the male connector 1 at one end, and the other end connects to a hose connector. The hose connector is located at the end of the hose. The interiors of the hoses on the male connector 1 and the female connector 2 are connected via a through-hole. When one end of the hose is rotated by another device, the rotatable connection between the male connector 1 and the female connector 2 prevents the hose from being twisted, thereby preventing the flow of the internal fluid. An O-ring 4 and a C-ring 5 are installed at the connection between the male connector 1 and the female connector 2. The C-ring 5 ensures that the male and female connectors do not separate during relative rotation, ensuring stability. The O-ring 4 ensures that the internal fluid of the male and female connectors is sealed and prevents leakage.

[0033] Example 2

[0034] like Figures 1-6 As shown, this embodiment 2 provides a rotatable pipe joint based on the embodiment 1, wherein the male head 1 includes a male tail end connected to the hose joint and a male head end connected to the female head 2, and an O-ring mounting groove 6 and a C-type elastic ring anti-slip groove 8 are provided on the outer surface of the male head end, and a C-type elastic ring guide surface 7 is provided on one side of the O-ring mounting groove 6.

[0035] The female head 2 includes a female tail end connected to the hose connector and a female head end connected to the male head 1. A C-shaped elastic ring mounting groove 14 and an O-ring guide surface 13 are provided on the inner wall of the female head end. An O-ring sealing hole 12 is provided on the side of the O-ring guide surface 13 away from the end of the female tail end.

[0036] The male head 1 and the female head 2 are provided with a through hole running axially through the center. A male connecting thread 9 is provided on the inner surface of the male tail end, and the hose connector is threadedly connected to the inner surface of the male tail end. A female connecting thread 10 is provided on the outer surface of the female tail end, and the hose connector is threadedly connected to the female end on the outer surface of the female tail end 10.

[0037] The outer surface of the male end of the male connector 1 is provided with two O-ring mounting grooves 6 arranged at intervals, one of which is close to the end of the male end. An O-ring 4 is provided in each O-ring mounting groove 6, and a C-type elastic ring guide surface 7 is provided on the side of the C-type elastic ring anti-slip groove 8 facing the end of the male end.

[0038] A C-shaped elastic ring mounting groove 14 is located on the inner wall of the female end of the female connector 2, near the female end. An O-ring guide surface 13 is located on the side of the C-shaped elastic ring mounting groove 14 away from the female end. The diameter of the O-ring hole 12 is larger than the inner diameter of the female end. After the male end of the male connector 1 is installed inside the female end, the end of the male end abuts against the end surface of the O-ring hole 12.

[0039] The O-ring installation groove 6 and the O-ring sealing hole 12 cooperate to install the O-ring 4 , and the C-type elastic ring anti-slip groove 8 and the C-type elastic ring installation groove 14 cooperate to install the C-type elastic ring 5 .

[0040] The connection between the male connector 1 and the female connector 2 is provided with an axial clearance 15 and a radial clearance 16. The axial clearance 15 is in the range of 0.2-0.3, and the radial clearance 16 is in the range of 0.1-0.2. The axial clearance 15 and the radial clearance 16 ensure the compressive strength of the male connector 1 and the female connector 2 when used together.

[0041] During installation and use, first install the two O-rings 4 in the two O-ring installation grooves 6 on the outer surface of the male head respectively, install the C-type elastic ring 5 in the C-type elastic ring anti-slip groove 8 on the inner wall of the female head, and then insert the male end of the male head into the female end of the female head 2. When the male head 1 moves a certain distance toward the female head 2, the two O-rings 4 on the male head contact the O-ring guide surface 13 on the inner surface of the female head 1, and the O-rings 4 are gradually compressed by the O-ring wire surface 13. The C-type elastic ring 5 on the inner surface of the female head contacts the C-type elastic ring guide surface 7 on the outer surface of the male head 1, and the C-type elastic ring 5 is gradually expanded by the C-type elastic ring guide surface 7. The male head 1 continues to be inserted into the direction of the female head 2, and the compressed O-ring 4 enters the O-ring hole 12 of the female head 2 together with the male head 1. The expanded C-type elastic ring 5 enters the C-type elastic ring anti-slip groove 8 on the male head and then returns to its original state. After being compressed, the O-ring 4 is further compressed by the male connector 1 and the O-ring hole 12, providing a seal. The C-ring 5, located within the C-ring anti-slip groove 8 and the C-ring mounting groove 14, prevents the male connector 1 and female connector 2 from separating. The male end of the male connector 1 is connected to the hose connector's external connecting threads via connecting threads 9 on its inner wall. The female end of the female connector 2 is connected to the hose connector's internal connecting threads via connecting threads 10 on its outer surface. The ED seal 3, located on the exterior of the female end, seals the connection between the female end and the hose connector.

[0042] Example 3

[0043] like Figure 7As shown, this embodiment provides a rotatable pipe joint based on Example 1, which is different from Example 1 in that: a pagoda interface 17 is provided at the end where the male head 1 is connected to the hose joint, and the pagoda interface 17 can be inserted into the hose and fixedly connected to the male head 1 through a throat clamp. A connecting thread 10 is provided on the outer surface of the end where the female head 2 is connected to the hose, and an ED sealing ring 3 is provided on one side of the connecting thread 10. The female head 2 is connected to the hose joint through the connecting thread 10, and the hose joint and the female head 2 are sealed through the ED sealing ring 3.

[0044] Example 4

[0045] like Figure 8 As shown, this embodiment provides a rotatable pipe joint based on the first embodiment. The difference from the first embodiment is that a connecting thread 9 is provided on the inner wall of the end of the male head 1 connected to the hose connector, and a connecting thread 10 is provided on the inner wall of the end of the female head 2 connected to the hose connector. The hose connectors are respectively connected to the corresponding connecting threads 9 and 10, thereby connecting to the male head 1 and the female head 2.

[0046] The above-mentioned connection method with the hose connector can ensure the sealing inside the hose without the need for additional sealing parts.

[0047] Example 5

[0048] like Figure 9 As shown, this embodiment provides a rotatable pipe joint based on the first embodiment. This embodiment differs from the first embodiment in that a connecting thread 9 is provided on the outer surface of the end of the male connector 1 that connects to the hose connector, and a connecting thread 10 is provided on the outer surface of the end of the female connector 2 that connects to the hose connector. The hoses connect to the corresponding connecting threads 9 and 10, respectively, thereby connecting to the male connector 1 and the female connector 2. ED sealing rings 3 are provided on the outer surfaces of both the male connector 1 and the female connector 2, ensuring a tight seal between the male and female connectors and the hose connector.

[0049] The above is only a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A rotatable pipe joint, characterized in that: The invention comprises a male head (1) and a female head (2), wherein one end of the male head (1) and one end of the female head (2) are coaxially rotatably connected, and the other ends of the male head (1) and the female head (2) are respectively connected to hose connectors on a hose, and an O-type sealing ring (4) and a C-type elastic ring (5) are provided at the connection between the male head (1) and the female head (2), and a through hole is provided inside the male head (1) and the female head (2), and the through hole is connected to the inside of the hose for passing fluid.

2. The rotatable pipe joint according to claim 1, wherein: The male end (1) comprises a male tail end connected to the hose connector and a male end connected to the female end (2); an O-ring mounting groove (6) and a C-type elastic ring anti-slip groove (8) are provided on the outer surface of the male end; and a C-type elastic ring guide surface (7) is provided on one side of the O-ring mounting groove (6).

3. The rotatable pipe joint according to claim 2, wherein: The female head (2) comprises a female tail end connected to the hose connector and a female head end connected to the male head, wherein the inner wall of the female head end is provided with a C-shaped elastic ring installation groove (14) and an O-ring guide surface (13), and the O-ring guide surface (13) is provided with an O-ring sealing hole (12) on a side away from the end of the female tail end.

4. The rotatable pipe joint according to claim 3, wherein: The male end is connected with the female end in cooperation, the C-type elastic ring anti-slip groove (8) and the C-type elastic ring installation groove (14) are cooperated to install the C-type elastic ring (5), the O-type sealing ring installation groove (6) and the O-type ring sealing hole (12) are cooperated to install the O-type sealing ring (4), and the C-type elastic ring guide surface (7) and the O-type sealing ring guide surface (13) are in contact and cooperation.

5. The rotatable pipe joint according to claim 2, wherein: A male connecting thread (9) is provided on the inner wall of the male tail end, and the hose connector is connected to the male connecting thread (9) in a cooperative manner.

6. The rotatable pipe joint according to claim 2, wherein: The outer surface of the male tail end is provided with a male connecting thread (9), and the hose connector is connected to the male connecting thread (9) in a cooperative manner. The side of the male connecting thread (9) away from the end of the male tail end is provided with an ED sealing ring (3), and the hose connector is sleeved on the outer surface of the male tail end, and the sealing of the connection is ensured by the ED sealing ring (3).

7. The rotatable pipe joint according to claim 2, wherein: The outer surface of the male tail end is provided with a male long thread (17). After the hose is inserted into the through hole of the male head (1), the hose connector on the hose is connected with the male long thread to install the hose.

8. The rotatable pipe joint according to claim 3, wherein: The outer surface of the female tail end is provided with a female connecting thread (10), and the hose connector is connected with the female connecting thread in cooperation. An ED sealing ring (3) is provided on the side of the female connecting thread (10) away from the end of the female tail end, and the sealing of the connection is ensured by the ED sealing ring (3).

9. The rotatable pipe joint according to claim 1, wherein: Two O-type sealing rings (4) are provided at the connection between the male head (1) and the female head (2).

10. The rotatable pipe joint according to claim 1, wherein: The connection between the male head (1) and the female head (2) is provided with an axial fit clearance (15) and a radial fit clearance (16). The range of the axial fit clearance (15) is 0.2-0.3, and the range of the radial fit clearance (16) is 0.1-0.2.

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