CN209484111U - A kind of centre revolving joint - Google Patents

Abstract

The utility model discloses a kind of centre revolving joints, including interior conduit, said inner tube is socketed with Outer Tube on the outside of road, the Outer Tube is rotatablely connected by bearing and disc, the Outer Tube and interior conduit form spatia, the lateral wall in said inner tube road offers aperture, locates to be equipped with the sealing ring being connected on Outer Tube inner sidewall and interior conduit lateral wall up and down close to aperture in the spatia.The centre revolving joint, when driving straight tube rotation, supervisor drives Outer Tube to rotate on disc by bearing and O-ring, is rotating at Outer Tube on interior conduit, and the sealing performance at rotation connection of competing, oil liquid by threaded hole after being entered on interior conduit, it is first filled with spatia when flowing into bend pipe by the aperture of inner tube pipeline outer wall, liquid caching is formed, oil liquid is enable to flow directly into bend pipe when flowing out by aperture by spatia, cutout is not will form, enhanced convenience work.

Description

A kind of centre revolving joint

Technical field

The utility model relates to mechanical fitting technical field, specially a kind of centre revolving joint.

Background technique

Rotary joint is the connection sealing device that medium is input in slewing from solid equipment, is adjusted in high speed Lower water flowing, hot oil, compressed air or low-pressure steam and specially design, existing centre revolving joint will be protected in actual use Fluency of the leakproofness and medium when determining rotation between body of the body and inside of demonstrate,proving outside in flowing, the body in outside and interior The fluency of leakproofness and medium in flowing when determining rotation between body of side most important job specification when being adapter work It embodies.

Utility model content

The purpose of this utility model is to provide a kind of centre revolving joints, to solve mentioned above in the background art ask Topic.

To achieve the above object, the utility model provides the following technical solutions: a kind of centre revolving joint, including inner tube Road, the inside in said inner tube road are hollow structure, the one end in said inner tube road integrally formed with coupling, the coupling it is interior Side offers the threaded hole being connected with internal cavities, and the two sides in said inner tube road are connected with disc, said inner tube road it is outer Side is socketed with Outer Tube, and the Outer Tube is rotatablely connected by bearing and disc, and the top and the bottom of the bearing are fitted with O-shaped Circle, the Outer Tube and interior conduit form spatia, and the lateral wall in said inner tube road offers aperture, in the spatia close to Aperture is located to be equipped with the sealing ring being connected on Outer Tube inner sidewall and interior conduit lateral wall up and down, and the lateral wall of the Outer Tube connects Logical to be connected with bend pipe, the other end of the bend pipe is connected with straight tube by connecting hoop.

Preferably, the bend pipe is correspondingly arranged with aperture.

Preferably, the bearing is waterproof sealing bearing.

Compared with prior art, the utility model has the beneficial effects that the centre revolving joint, is driving straight tube rotation When, supervisor drives Outer Tube to rotate on disc by bearing and O-ring, is rotating at Outer Tube on interior conduit, and strive Sealing performance at strong rotation connection, oil liquid pass through the aperture of inner tube pipeline outer wall after entering on interior conduit by threaded hole It is first filled with spatia when flowing into bend pipe, forms liquid caching, it is straight by spatia when oil liquid being enable to flow out by aperture It connects and flows into bend pipe, not will form cutout, enhanced convenience works.

Detailed description of the invention

FIG. 1 is a schematic structural view of the utility model；

Fig. 2 is the utility model Outer Tube and disc attachment structure schematic diagram；

Fig. 3 is structure structural schematic diagram at A in Fig. 2.

In figure: 1, straight tube, 2, connecting hoop, 3, bend pipe, 4, Outer Tube, 5, aperture, 6, interior conduit, 7, disc, 8, coupling, 9, threaded hole, 10, sealing ring, 11, spatia, 12, O-ring, 13, bearing.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1-3 is please referred to, the utility model provides a kind of technical solution: a kind of centre revolving joint, including interior conduit 6, The inside of interior conduit 6 be hollow structure, one end of interior conduit 6 integrally formed with coupling 8, the inside of coupling 8 offer with The threaded hole 9 that internal cavities are connected, input duct are threaded in threaded hole 9, and are added in junction winding band Strong sealing effect, the two sides of interior conduit 6 are connected with disc 7, and the outside of interior conduit 6 is socketed with Outer Tube 4, and Outer Tube 4 passes through Bearing 13 and disc 7 are rotatablely connected, and bearing 13 is waterproof sealing bearing, and the top and the bottom of bearing 13 are fitted with O-ring 12, adopt The rotating mechanism that sealing is formed with bearing 13 and O-ring 12 is rotating at Outer Tube 4 on interior conduit 6, and in sealing State, Outer Tube 4 and interior conduit 6 form spatia 11, and the lateral wall of interior conduit 6 offers aperture 5, aperture 5 and spatia 11 It is connected, it is close on 6 lateral wall of 4 inner sidewall of Outer Tube and interior conduit equipped with being connected in close to about 5 aperture in spatia 11 Seal 10, the lateral wall of Outer Tube 4 have been fixedly communicated bend pipe 3, and bend pipe 3 is correspondingly arranged with aperture 5, pass through the sealing ring 10 of setting It is connected to single aperture 5 directly with single bend pipe 3, may not flow into the spatia 11 in 10 outside of sealing ring, using design gaps Chamber 11 makes oil liquid be first filled with spatia 11 when flowing into bend pipe 3 by aperture 5, forms liquid caching, oil liquid is enable to lead to It crosses when aperture 5 is flowed out and is flowed directly into bend pipe 3 by spatia 11, not will form cutout, enhanced convenience works, bend pipe 3 The other end straight tube 1 is connected with by connecting hoop 2, two neighboring central switching head is connected by straight tube 1.

After being connected in oil extraction pipeline in normal work, straight tube 1 is connected to the connecing on oil pipe of rotation to adapter, in band When dynamic straight tube 1 rotates, 1 drive Outer Tube 4 of supervisor is rotated on disc 7 by bearing 13 and O-ring 12, turn Outer Tube 4 can It moves on interior conduit 6, oil liquid is flowed into curved after being entered on interior conduit 6 by threaded hole 9 by the aperture 5 of 6 outer wall of interior conduit It is first filled with spatia 11 when in pipe 3, forms liquid caching.

In the description of the present invention, it should be understood that term " coaxial ", " bottom ", " one end ", " top ", " in The orientation of the instructions such as portion ", " other end ", "upper", " side ", " top ", "inner", " front ", " center ", " both ends " or position are closed System is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing the present invention and simplifying the description, rather than The device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot It is construed as a limitation of the present invention.

In the present invention unless specifically defined or limited otherwise, term " installation ", " setting ", " connection ", " Gu Calmly ", the terms such as " being screwed on " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral； It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, can also indirectly connected through an intermediary, it can be with It is the interaction relationship of the connection or two elements inside two elements, unless otherwise restricted clearly, for this field For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (3)

1. a kind of centre revolving joint, it is characterised in that: including interior conduit (6), the inside of said inner tube road (6) is hollow knot Structure, the one end of said inner tube road (6) are offered and internal cavities on the inside of the coupling (8) integrally formed with coupling (8) The threaded hole (9) being connected, the two sides of said inner tube road (6) are connected with disc (7), the outside socket of said inner tube road (6) Have Outer Tube (4), the Outer Tube (4) is rotatablely connected by bearing (13) and disc (7), and the top and the bottom of the bearing (13) are equal It is fitted with O-ring (12), the Outer Tube (4) and interior conduit (6) form spatia (11), the outside of said inner tube road (6) Wall offers aperture (5), close to aperture (5) locate to be equipped with up and down in the spatia (11) be connected in Outer Tube (4) inner sidewall with The lateral wall of sealing ring (10) on interior conduit (6) lateral wall, the Outer Tube (4) has been fixedly communicated bend pipe (3), the bend pipe (3) the other end is connected with straight tube (1) by connecting hoop (2).

2. a kind of centre revolving joint according to claim 1, it is characterised in that: the bend pipe (3) is corresponding with aperture (5) Setting.

3. a kind of centre revolving joint according to claim 1, it is characterised in that: the bearing (13) is waterproof sealing shaft It holds.