CN213871514U

CN213871514U - Fluid pipe joint

Info

Publication number: CN213871514U
Application number: CN202022695211.5U
Authority: CN
Inventors: 张毓中
Original assignee: Zhejiang Hengzhan Machinery Co ltd
Current assignee: Zhejiang Hengzhan Machinery Co ltd
Priority date: 2020-11-19
Filing date: 2020-11-19
Publication date: 2021-08-03
Anticipated expiration: 2030-11-19

Abstract

The utility model provides a fluid pipe joint, which comprises a joint body and a connecting nut sleeved on the joint body, wherein the end part of the joint body, which penetrates through the connecting nut, is provided with an outward convex flanging, the end part of the connecting nut, which is sleeved on the joint body, is provided with an inward convex inward flanging, and the outer wall of the joint body is provided with a limiting bulge; an annular cavity is formed between the outer flanging and the inner flanging, a force application part is arranged in the annular cavity and used for pushing the connecting nut to the limiting protrusion, and the connecting nut is tightly abutted to the limiting protrusion. The force application part always applies thrust to the connecting nut to push the connecting nut to one side of the limiting bulge, so that the connecting nut is tightly propped against the limiting bulge. So in the transportation, be difficult for producing relative slip between joint body and the coupling nut for be difficult for striking each other between flanging and the inside flanging, make flanging and inside flanging be difficult for taking place to warp even damaged.

Description

Fluid pipe joint

Technical Field

The present invention relates to pipe joints, and in particular, to fluid pipe joints.

Background

At present, chinese patent with publication number CN2718358Y discloses a water pipe joint, which comprises a joint and a sleeve head sleeved on the joint, wherein a water through hole is formed in the center of the joint, and a convex edge is arranged on the end of the joint penetrating through the joint. The center of the sleeve head is provided with a through hole which is communicated with the water through hole, and a position opposite to the convex edge in the inner hole wall of the through hole is provided with a limiting step. The convex edge is matched with the limiting step to limit the joint and the sleeve head to be separated from each other. However, in the transportation process, the joint and the sleeve head can slide relatively, so that the convex edge and the limiting step are easy to collide, and the convex edge and the limiting step are easy to damage.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention is directed to a fluid pipe joint having an advantage of being less prone to relative sliding between a joint body and a coupling nut during transportation.

In order to solve the technical problem, the technical scheme of the utility model is that: a fluid pipe joint comprises a joint body and a connecting nut sleeved on the joint body, wherein an outward-protruding flanging is arranged at the end part of the joint body penetrating through the connecting nut, an inward-protruding inward-flanging is arranged at the end part of the connecting nut sleeved on the joint body, the inward-flanging is used for abutting against the outward-flanging so as to limit the connecting nut from being separated from the end part of the joint body provided with the outward-flanging, and a limiting protrusion is arranged at the outer wall of the joint body; an annular cavity is formed between the outer flanging and the inner flanging, a force application part is arranged in the annular cavity and used for pushing the connecting nut to the limiting protrusion, and therefore the connecting nut is tightly abutted to the limiting protrusion.

Through above-mentioned technical scheme, the application of force spare can the coupling nut all the time exert with thrust for push the coupling nut to spacing protruding one side, make coupling nut and spacing protruding counterbalance tightly. So in the transportation, be difficult for producing relative slip between joint body and the coupling nut for be difficult for striking each other between flanging and the inside flanging, make flanging and inside flanging be difficult for taking place to warp even damaged.

Preferably, the force application part comprises a first spring sleeved on the joint body, and two ends of the first spring respectively abut against the outward turning edge and the inward turning edge.

Through above-mentioned technical scheme, the spring one is in compression state all the time, so the spring one can last to push coupling nut to spacing protruding one side through the inside turn-ups for coupling nut and spacing protruding counterbalance are tight.

Preferably, the joint body and the connecting nut are both made of a non-ferromagnetic material; the force application part comprises a first magnetic ring arranged at the outer flanging and a second magnetic ring arranged at the inner flanging, the first magnetic ring is opposite to the second magnetic ring, and the magnetic force between the first magnetic ring and the second magnetic ring is repulsive force.

Through the technical scheme, the magnetic force between the first magnetic ring and the second magnetic ring is repulsive force, so that the first magnetic ring can push the connecting nut to one side of the limiting protrusion through the second magnetic ring, and the connecting nut is tightly abutted to the limiting protrusion.

Preferably, a first retaining ring is arranged on the outward turning edge, the magnetic ring is sleeved on the joint body, and the outer ring of the first magnetic ring is abutted against the inner ring of the first retaining ring; and a second baffle ring is arranged on the inner flanging, the second magnetic ring is sleeved on the second baffle ring, and the outer ring of the second magnetic ring is tightly propped against the inner wall of the connecting nut.

Through the technical scheme, the first baffle ring for fixing the first magnetic ring is arranged on the flanging, so that a ring groove for placing the first magnetic ring is not required to be formed in the flanging, the flanging can have strong structural strength, and the flanging is not easy to deform or even damage. The inner flanging is provided with the second baffle ring for fixing the second magnetic ring, so that an annular groove for placing the second magnetic ring is not required to be formed in the inner flanging, the inner flanging can have strong structural strength, and the inner flanging is not easy to deform or even damage.

Preferably, the force application part comprises a first rotating ring rotationally connected to the outer flange, a second rotating ring rotationally connected to the inner flange, and a plurality of second springs uniformly distributed along the circumferential direction of the annular cavity, one ends of the second springs are fixedly connected to the first rotating ring, and the other ends of the second springs are fixedly connected to the second rotating ring.

Through above-mentioned technical scheme, set up a plurality of springs two in the toroidal cavity and be in compression state all the time, so a plurality of springs two can be sustainable to exert with thrust to coupling nut through the inside turn-ups for coupling nut moves and finally offsets tightly with spacing arch to spacing protruding one side. Two ends of the second spring are respectively connected with the first rotating ring and the second rotating ring, so that when the connecting nut is rotated to connect the connecting nut with a water pipe externally provided with threads, the second spring is not easy to bend and twist, and the second spring is not easy to damage.

Preferably, a guide post is arranged at the position, opposite to the first rotating ring and the second spring, of the first rotating ring, the guide post penetrates through the corresponding second spring and abuts against the inner ring of the corresponding second spring, a sliding hole penetrates through the position, opposite to the guide post, of the second rotating ring, the end, far away from the first rotating ring, of the guide post is inserted into the sliding hole and connected with the sliding hole in a sliding mode, a connecting hole penetrates through the position, opposite to the sliding hole, of the connecting nut, and the connecting hole is communicated with the corresponding sliding hole.

Through the technical scheme, the guide post is arranged inside the second spring, and the guide post can guide the deformation of the second spring, so that the second spring is not easy to bend. Meanwhile, the first rotating ring and the second rotating ring can be connected through the guide post, so that the first rotating ring can rotate circumferentially along with the second rotating ring, and the second spring is not prone to bending and twisting when the connecting nut is rotated to connect the connecting nut with a water pipe with threads arranged outside.

Preferably, the connecting hole is kept away from the inner hole wall of the sliding hole is provided with an installation ring groove, a rubber sealing ring is embedded in the installation ring groove, and the inner ring of the rubber sealing ring protrudes out of the groove opening of the installation ring groove.

Through the technical scheme, when the guide post passes through the rubber sealing ring, the inner ring of the rubber sealing ring is tightly attached to the guide post so as to seal the gap between the guide post and the connecting hole, and water flowing through the pipe joint is difficult to flow out from the gap between the guide post and the connecting hole. The inner hole wall of the connecting hole is provided with the mounting ring groove for mounting the rubber sealing ring, so that the rubber sealing ring can be stably mounted in the connecting hole and is not easy to move in the connecting hole.

Preferably, the hole diameter of the inner hole of the rubber sealing ring is gradually increased towards one side of the sliding hole.

Through above-mentioned technical scheme, the hole aperture of rubber seal increases to sliding hole one side gradually down, so the guide post can comparatively conveniently insert in rubber seal's the hole.

Drawings

FIG. 1 is a schematic cross-sectional view of a first embodiment;

FIG. 2 is a schematic sectional view of the second embodiment;

fig. 3 is a schematic cross-sectional view of the third embodiment.

Reference numerals: 1. a connector body; 2. a connecting nut; 3. flanging; 4. inward flanging; 5. a limiting bulge; 6. an annular cavity; 7. a force application member; 71. a first spring; 72. a first magnetic ring; 73. a second magnetic ring; 74. rotating the ring I; 75. a second rotating ring; 76. a second spring; 8. a first baffle ring; 9. a second baffle ring; 10. a guide post; 11. a sliding hole; 12. connecting holes; 13. mounting a ring groove; 14. a rubber seal ring.

Detailed Description

The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings, so that the technical solution of the present invention can be more easily understood and grasped.

The first embodiment is as follows:

a fluid pipe joint, as shown in FIG. 1, comprises a joint body 1 and a coupling nut 2 sleeved on the joint body 1. The end part of the joint body 1 penetrating through the connecting nut 2 is provided with an outward convex flanging 3, and the flanging 3 and the joint body 1 are coaxial and integrally forged. The connecting nut 2 is sleeved on the end part of the joint body 1 and is provided with an inward convex inward flange 4, and the flange and the connecting nut 2 are coaxial and are integrally forged and formed. When the coupling nut 2 is moved towards the end of the coupling body 1 provided with the flanging 3, the flanging 4 on the coupling nut 2 is gradually close to the flanging 3 on the coupling body 1. When the inner flange 4 on the connecting nut 2 is abutted against the outer flange 3 on the joint body 1, the connecting nut 2 is limited to move towards the end part of the joint body 1 provided with the outer flange 3, so that the connecting nut 2 cannot be separated from the end part of the joint body 1 provided with the outer flange 3.

An annular cavity 6 is formed between the outer flanging 3 and the inner flanging 4, and a force application part 7 is arranged in the annular cavity 6 and used for pushing the connecting nut 2 to the limiting protrusion 5, so that the connecting nut 2 is tightly abutted to the limiting protrusion 5.

The force application member 7 comprises a first spring 71 sleeved on the joint body 1, two ends of the first spring 71 respectively abut against the outward flange 3 and the inward flange 4, and the first spring 71 is always in a compressed state.

Example two:

the second embodiment differs from the first embodiment in that, as shown in fig. 2, the joint body 1 and the coupling nut 2 are made of a non-ferromagnetic material. In the present embodiment, the joint body 1 and the coupling nut 2 are made of plastic. The force application part 7 comprises a first magnetic ring 72 which is sleeved on the joint body 1 and is abutted against the outward flange 3, and a second magnetic ring 73 which is embedded in the connecting nut 2 and is abutted against the inward flange 4, and the magnetic force between the first magnetic ring 72 and the second magnetic ring 73 is repulsive force. The outward flanging 3 is provided with a first baffle ring 8, and the inner ring of the first baffle ring 8 is tightly propped against the outer ring of the first magnetic ring 72. And a second baffle ring 9 is arranged on the inner flanging 4, and the outer ring of the second baffle ring 9 is tightly propped against the inner ring at the side of the first magnetic ring 72.

Example three:

the difference between the third embodiment and the first embodiment is that, as shown in fig. 3, the force applying member 7 includes a first rotating ring 74 rotatably connected to the outward flange 3, a second rotating ring 75 rotatably connected to the inward flange 4, and a plurality of second springs 76 uniformly distributed along the circumferential direction of the annular cavity 6, one end of each second spring 76 is fixedly connected to the first rotating ring 74, and the other end of each second spring 76 is fixedly connected to the second rotating ring 75.

The opposite positions of the first rotating ring 74 and the second spring 76 are provided with guide posts 10, the guide posts 10 penetrate through the corresponding second spring 76 and abut against the inner ring of the corresponding second spring 76, the opposite positions of the second rotating ring 75 and the guide posts 10 are provided with sliding holes 11 in a penetrating mode, the end portion, far away from the first rotating ring 74, of the guide posts 10 is inserted into the sliding holes 11 and connected with the sliding holes 11 in a sliding mode, the opposite positions of the connecting nut 2 and the sliding holes 11 are provided with connecting holes 12 in a penetrating mode, and the connecting holes 12 are communicated with the corresponding sliding holes 11.

An installation ring groove 13 is formed in the inner hole wall of the connecting hole 12, which is far away from the sliding hole 11, a rubber sealing ring 14 is embedded in the installation ring groove 13, the inner ring of the rubber sealing ring 14 protrudes out of the notch of the installation ring groove 13, and the inner hole diameter of the rubber sealing ring 14 is gradually increased towards one side of the sliding hole 11.

Of course, the above is only a typical example of the present invention, and besides, the present invention can also have other various specific embodiments, and all technical solutions adopting equivalent replacement or equivalent transformation are all within the scope of the present invention as claimed.

Claims

1. The utility model provides a fluid pipe joint, establishes including connecting body (1) and cover connect coupling nut (2) on body (1), connect body (1) to pass be provided with outside bellied flanging (3) on the tip of coupling nut (2), coupling nut (2) overlap in be provided with inside bellied turn-ups (4) on the tip of connecting body (1), turn-ups (4) are used for contradicting flanging (3), and then the restriction coupling nut (2) are followed the tip that connects body (1) to be equipped with flanging (3) is deviate from, characterized by: a limiting bulge (5) is arranged on the outer wall of the joint body (1); an annular cavity (6) is formed between the outer flanging (3) and the inner flanging (4), a force application part (7) is arranged inside the annular cavity (6), and the force application part (7) is used for pushing the connecting nut (2) to the limiting protrusion (5), so that the connecting nut (2) is tightly abutted to the limiting protrusion (5).

2. A fluid coupling as set forth in claim 1, wherein: the force application part (7) comprises a first spring (71) sleeved on the joint body (1), and two ends of the first spring (71) respectively abut against the outer flanging (3) and the inner flanging (4).

3. A fluid coupling as set forth in claim 1, wherein: the joint body (1) and the connecting nut (2) are both made of non-ferromagnetic materials; the force application part (7) comprises a first magnetic ring (72) arranged at the outer flanging (3) and a second magnetic ring (73) arranged at the inner flanging (4), the first magnetic ring (72) is opposite to the second magnetic ring (73), and the magnetic force between the first magnetic ring (72) and the second magnetic ring (73) is repulsive force.

4. The fluid coupling of claim 3, wherein: a first baffle ring (8) is arranged on the outward flanging (3), the first magnetic ring (72) is sleeved on the joint body (1), and the outer ring of the first magnetic ring (72) is abutted against the inner ring of the first baffle ring (8); and a second baffle ring (9) is arranged on the inner flanging (4), the second magnetic ring (73) is sleeved on the second baffle ring (9), and the outer ring of the second magnetic ring (73) is tightly propped against the inner wall of the connecting nut (2).

5. A fluid coupling as set forth in claim 1, wherein: the force application part (7) comprises a first rotating ring (74) rotatably connected to the outer flanging (3), a second rotating ring (75) rotatably connected to the inner flanging (4) and a plurality of second springs (76) uniformly distributed along the circumferential direction of the annular cavity (6), one ends of the second springs (76) are fixedly connected to the first rotating ring (74), and the other ends of the second springs (76) are fixedly connected to the second rotating ring (75).

6. A fluid coupling as set forth in claim 5, wherein: the relative position of the first rotating ring (74) and the second spring (76) is provided with a guide post (10), the guide post (10) penetrates through the second spring (76) and abuts against the inner ring of the second spring (76), a sliding hole (11) penetrates through the relative position of the second rotating ring (75) and the guide post (10), the end part, far away from the first rotating ring (74), of the guide post (10) is inserted into the sliding hole (11) and is connected with the sliding hole (11) in a sliding mode, a connecting hole (12) penetrates through the relative position of the connecting nut (2) and the sliding hole (11), and the connecting hole (12) is communicated with the corresponding sliding hole (11).

7. A fluid coupling as set forth in claim 6, wherein: keep away from connecting hole (12) installation annular (13) have been seted up to the interior pore wall department of hole (11) that slides, it is equipped with rubber seal (14) to inlay in installation annular (13), the inner circle protrusion of rubber seal (14) in the notch of installation annular (13).

8. A fluid coupling as set forth in claim 7, wherein: the inner hole diameter of the rubber sealing ring (14) is gradually increased towards one side of the sliding hole (11).