SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model provides a tube connecting structure, it has the good advantage of leakproofness.
In order to achieve the above purpose, the utility model provides a following technical scheme:
a pipe connecting structure comprises a pipe body and a connecting ring sleeve, wherein the connecting ring sleeve comprises an outer connecting piece and an inner connecting piece coaxially fixed in the outer connecting piece, two ends of the connecting ring sleeve are provided with annular grooves, and the annular grooves are positioned between the outer connecting piece and the inner connecting piece and used for embedding and connecting the end part of the pipe body; the outer side wall of the pipeline body is provided with a flange, and two ends of the outer connecting piece are respectively connected with the flanges of the pipeline bodies at two ends of the outer connecting piece.
Through above-mentioned technical scheme, set up annular groove, ring flange, when needing the connecting tube, correspond the embedding annular groove respectively with the tip of two pipelines, rethread ring flange and pipe connection fixed can, the annular groove has prolonged the sealed route of pipeline to make the leakproofness of pipe connection better.
The present invention may be further configured in a preferred embodiment as: a plurality of studs are axially distributed at two ends of the outer connecting piece, the axes of the studs are parallel to the axis of the outer connecting piece, and the studs correspondingly penetrate through the through holes of the flange plate.
Through above-mentioned technical scheme, be connected through setting up a plurality of double-screw bolts and ring flange, make the pipe connection more stable.
The present invention may be further configured in a preferred embodiment as: the outer connecting piece includes linkage segment and coaxial fixed connection in the canned paragraph at linkage segment axial both ends, every the diameter of canned paragraph is towards keeping away from the direction grow setting gradually of linkage segment.
Through above-mentioned technical scheme, the through-hole on the ring flange corresponds the lateral wall of pipeline body and has certain distance, and when the ring flange was connected with the double-screw bolt, the outer joint spare was opened outward, may produce the gap between annular groove and the pipeline body lateral wall, through setting up canned paragraph and linkage segment, the diameter of canned paragraph was towards keeping away from the direction grow gradually of linkage segment has reduced the influence that brings when the ring flange is connected, reduces the production in gap to the connection leakproofness that makes the pipeline is better.
The present invention may be further configured in a preferred embodiment as: every the one end that the canned paragraph kept away from the linkage segment is coaxial to be seted up the seal groove, the seal groove inlays and is equipped with the sealing ring.
Through above-mentioned technical scheme, set up seal groove, sealing ring, the sealing ring supports the boundary when tight pipeline body embedding annular groove, has increased the leakproofness of pipe connection.
The present invention may be further configured in a preferred embodiment as: two inclined planes are formed at the groove bottom of the annular groove, are positioned on the inner and outer annular walls of the annular groove and are arranged towards the direction close to the groove bottom.
Through above-mentioned technical scheme, the pipeline body passes through the ring flange and fixes screwing, and the tip of pipeline body extrudees towards the tank bottom along the incline direction on inclined plane, and the tank bottom is because the extrusion of this tip of pipeline and then produce towards the extruded power of pipeline body tip, through the mutual extruded power of tank bottom and pipeline body tip, makes the tighter of the tip laminating of tank bottom lateral wall and pipeline body to make the leakproofness of pipe connection better.
The present invention may be further configured in a preferred embodiment as: the inner wall of the annular groove is covered with an elastic sealing layer, and the end part of the pipeline body is embedded into the annular groove and tightly abuts against the elastic sealing layer.
Through above-mentioned technical scheme, set up the elastic sealing layer, when pipeline body tip was inlayed, the deformation of elastic sealing groove was converted into to the power of pipeline body embedding, and the elastic sealing layer fills up the gap between this tip of pipeline and the bottom of annular groove bottom tank, makes the inseparabler of being connected of this tip of annular groove inner wall and pipeline to the leakproofness of pipe connection has been increased.
The present invention may be further configured in a preferred embodiment as: the end part close to the connecting ring sleeve is provided with a guide part, and the shape of the guide part corresponds to the two inclined planes.
Through above-mentioned technical scheme, set up the guide part, guide this end of body embedding annular groove of pipeline to it is inseparable with the tank bottom laminating, increased the leakproofness of pipeline connection.
The present invention may be further configured in a preferred embodiment as: two guide surfaces are arranged at two axial ends of the inner connecting piece, and the two guide surfaces are both arranged on the inner annular wall of the inner connecting piece.
Through above-mentioned technical scheme, through setting up the spigot surface, the spigot surface can lead to rivers and has reduced rivers and gather in the notch department of annular groove, makes the leakproofness that annular groove and mouth of pipe are connected better.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) by arranging the annular groove and the flange plate, the pipeline connection has better sealing performance and is stable;
(2) by arranging the sealing groove and the sealing layer and embedding the sealing ring in the sealing groove, the sealing performance of pipeline connection is improved;
(3) through setting up the spigot surface for the leakproofness that annular groove and mouth of pipe are connected is better.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
Example (b):
a pipe connecting structure, see figure 1, includes pipeline body 1 and connection ring cover 2, and two pipeline bodies 1 are connected to connection ring cover 2 both ends, and the coaxial flange 3 that is fixed with of pipeline body 1 lateral wall, flange 3 are close to the tip setting of pipeline body 1.
Referring to fig. 2 and 3, two annular grooves 8 are formed at two ends of the connecting ring sleeve 2, and the two annular grooves 8 are parallel to the axial direction of the connecting ring sleeve 2 and are arranged towards the direction corresponding to the pipeline body 1. The two inclined surfaces 81 are arranged at the groove bottoms of the two annular grooves 8, and the two inclined surfaces 81 are positioned on the inner and outer annular walls of the annular grooves 8 and are arranged towards the direction close to the groove bottoms. The annular groove 8 is provided with a layer of elastic sealing layer 10, the elastic sealing layer 10 is made of rubber, and the elastic sealing layer 10 covers the inner wall of the annular groove 8. The end of the pipeline body 1 further comprises a guide part 9, and the guide part 9 is arranged corresponding to the two inclined surfaces 81. When the pipeline body 1 is correspondingly embedded into the annular groove 8, the guide part 9 abuts against the elastic sealing layer 10 and is attached to the bottom of the annular groove 8 for sealing.
The connection ring housing 2 includes an outer connection member 21 and an inner connection member 22 coaxially fixed in the outer connection member 21, an outer diameter of the inner connection member 22 is smaller than an inner diameter of the outer connection member 21, and the outer connection member 21 and the inner connection member 22 are fixedly connected by the connection portion 12. The two annular grooves 8 are located between the outer connecting piece 21 and the inner connecting piece 22, and the two annular grooves 8 are formed by splicing the outer connecting piece 21, the inner connecting piece 22 and the connecting part 12.
Outer connecting piece 21 includes linkage segment 212 and two fixed sections 211 of coaxial fixed connection in linkage segment 212 axial both ends, and the diameter of two fixed sections 211 all is towards keeping away from the direction grow gradually of linkage segment 212 sets up.
A plurality of studs 4 are axially distributed at two ends of the outer connecting piece 21, the studs 4 are far away from the outer connecting piece 21, the studs 4 are respectively and uniformly distributed on the end faces of the two fixing sections 211 along the axial direction of the connecting ring sleeve 2, the number and the positions of the studs 4 are in one-to-one correspondence with the through holes 5 on the flange plate 3, and the axial lines of the studs 4 are parallel to the axial direction of the outer connecting piece 21.
Two guide surfaces 11 are fixed at two axial ends of the inner connecting piece 22, and the two guide surfaces 11 are both positioned on the inner annular wall of the inner connecting piece 22 and arranged in a chamfer mode. When the water flows through the inner connecting piece 22, the guide surface 11 guides the water flow so that the water flow does not accumulate at the notch of the annular groove 8.
Every canned paragraph 211 is kept away from the one end of linkage segment 212 is coaxial to have seted up seal groove 6, and seal groove 6 is close to the lateral wall that corresponds the canned paragraph 211 axis and runs through the inside wall setting of this canned paragraph 211, and the external diameter of seal groove 6 sets up along the length direction grow gradually of canned paragraph 211. The sealing groove 6 is embedded with a sealing ring 7, and the material of the sealing ring 7 is the same as that of the elastic sealing layer 10 and is integrally arranged with the corresponding elastic sealing layer 10. When the pipeline body 1 is inserted into the annular groove 8 for connection, the sealing ring 7 tightly abuts against the inner wall of the sealing groove 6 close to the pipeline body 1, the end face of the flange 3 close to the connecting section 212 and the outer side wall of the pipeline body 1 respectively to enhance sealing.
When the pipeline body 1 is inserted into the annular groove 8 for connection, the guide part 9 guides the pipeline body 1 to enable the pipeline body 1 to be correspondingly embedded into the annular groove 8 and tightly abut against the elastic sealing layer 10, then the studs 4 at two ends of the outer connecting piece 21 correspondingly penetrate through the through holes 5 on the flange plate 3, and then the studs 4 are screwed by nuts to enable the pipe connecting structure to be fixedly connected with the pipeline bodies 1 at two ends.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.