CN217713993U

CN217713993U - Water supply and drainage pipeline screw gland formula connection structure and pipeline connection structure

Info

Publication number: CN217713993U
Application number: CN202222038010.7U
Authority: CN
Inventors: 王俊; 王子宁; 王铭睿
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-08-03
Filing date: 2022-08-03
Publication date: 2022-11-01
Anticipated expiration: 2032-08-03

Abstract

The utility model discloses a water supply and drainage pipeline screw socket gland formula connection structure and pipeline connection structure belongs to the pipe connection technology field. A screw gland type connecting structure of a water supply and drainage pipeline comprises: a pipe, a pipe joint and a gland; the pipeline extends into the interior of the pipe joint; the gland is sleeved on the pipeline and connected with the pipe joint; the pipeline is sequentially sleeved with a limiting ring, a pushing ring and a sealing ring which are positioned in the pipe joint; the limiting ring is contacted with the gland; the sealing ring is extruded and deformed through the pipe joint and the pipeline, so that the sealing ring is respectively matched with the pipe joint and the pipeline in a sealing way. The utility model discloses a sealing washer produces radial extrusion deformation between coupling and pipeline, and both sides are extruded including the sealing washer promptly, compare in current both ends by extruded mode, and the extruded reaction force can not be used on the gland, can not influence the connectivity, also the difficult appearance drops and blocks dead phenomenon.

Description

Water supply and drainage pipeline screw gland formula connection structure and pipeline connection structure

Technical Field

The utility model relates to a pipe connection technical field, concretely relates to water supply and drainage pipeline screw socket gland formula connection structure and pipeline connection structure.

Background

The description of the background art of the present invention pertains to the related art related to the present invention, and is only for the purpose of illustrating and facilitating the understanding of the contents of the present invention, and it is not to be understood that the applicant definitely considers or presumes that the applicant considers the present invention as the prior art of the application date of the present invention which is filed for the first time.

The existing pipeline screw gland connection mode can drive the extrusion ring to extrude the sealing ring to connect through screwing up the screw gland, and the inside of the connector is sealed through arranging the sealing ring. At present, the pipeline connection structure commonly used adopts the propulsion circle to promote the sealing washer and targets in place and produce the extrusion force to the sealing washer, makes the sealing washer warp like both sides to reach sealed effect, at this moment, the reaction force of sealing washer can be used for on fixed connection's extrusion circle and screw gland, makes screw gland receive great reaction force, influences the connectivity, and the deformation can also appear droing and phenomenon such as card is dead moreover, can't dismantle.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a water supply and drainage pipeline screw socket gland formula connection structure and pipeline connection structure to solve current pipeline when connecting, the reaction force that the sealing washer warp the production can be used in the screw gland that is used for fixed connection, thereby influences the connectivity or appear droing and block dead scheduling problem.

The utility model provides an above-mentioned technical problem's technical scheme as follows:

a screw cap type connecting structure of a water supply and drainage pipeline comprises: a pipe, a pipe joint and a gland; the pipeline extends into the interior of the pipe joint; the gland is sleeved on the pipeline and connected with the pipe joint; the pipeline is sequentially sleeved with a limiting ring, a pushing ring and a sealing ring which are positioned in the pipe joint; the limiting ring is contacted with the gland; the sealing ring is extruded and deformed through the pipe joint and the pipeline, so that the sealing ring is respectively matched with the pipe joint and the pipeline in a sealing way.

The utility model discloses a sealing washer produces radial extrusion deformation between coupling and pipeline, and both sides are extruded including the sealing washer promptly, compare in current both ends by extruded mode, and the extruded reaction force can not be used on the gland, can not influence the connectivity, also the phenomenon of dying with the card appears droing difficultly. Furthermore, the utility model discloses a gland and spacing ring separately set up, and when the gland was connected through rotating and coupling, the spacing ring was difficult to rotate, avoided causing the damage of sealing washer because of rotating.

Furthermore, the limiting ring, the propelling ring and the sealing ring are sequentially contacted, and the propelling ring and the sealing ring are pushed by the limiting ring, so that the sealing ring is deformed between the pipe joint and the pipeline to form sealing fit.

Furthermore, the pipe joint is sequentially provided with a first step and a second step from the inside to the end part, so that a first hole expanding surface and a second hole expanding surface are sequentially formed on the inner side of the pipe joint; after the pipeline extends into the pipe joint, the end part of the pipeline is contacted with the first step, and the outer side surface of the pipeline is contacted with the first chambering surface; the pushing ring and the sealing ring are both positioned between the second reaming surface and the outer side surface of the pipeline.

Furthermore, an inclined plane is arranged at the position, close to the gland, of the second reaming surface, and the outer side face of the limiting ring is in contact fit with the inclined plane.

The utility model discloses a lateral surface of spacing ring also is the inclined plane, and the transversal toper of personally submitting of spacing ring, and the gland is when promoting the spacing ring, and the spacing ring produces under the effect of inclined plane complex and warp to it is inseparabler with the pipe connection, avoids not hard up of pipeline.

Further, the seal ring is an O-ring.

Furthermore, the limit ring is provided with a notch, or both the limit ring and the propelling ring are provided with notches. The arrangement of the notch is convenient for sleeving the limiting ring or the pushing ring on the pipeline, and meanwhile, the existence of the notch on the limiting ring is convenient for the folding and deformation of the limiting ring, so that the limiting ring is tightly connected with the pipeline and the pipe joint.

Furthermore, the limit ring and the propelling ring are arranged in a split manner or in an integrated manner.

The utility model discloses a spacing ring and propulsion circle components of a whole that can function independently set up, the gland when promoting, because the existence of spacing ring, the propulsion circle is more difficult to rotate to can ensure that the sealing washer can not damage because of rotating.

Further, the end of the pipe joint is provided with a connecting groove, the gland is connected with the bottom wall of the connecting groove, and the outer side wall of the gland is flush with the outer side wall of the pipe joint.

Further, the gland is in threaded connection with the bottom wall of the connecting groove.

The pipeline connecting structure has two ends of pipe joint connected to the upstream and downstream pipelines via the screwed gland type water supply and drainage pipeline.

The utility model discloses following beneficial effect has:

(1) The utility model discloses a sealing washer produces radial extrusion deformation between coupling and pipeline, and both sides are extruded including the sealing washer promptly, compare in current both ends by extruded mode, and the extruded reaction force can not be used on the gland, can not influence the connectivity, also the difficult appearance drops and blocks dead phenomenon.

(2) The gland and the limiting ring are separately arranged, when the gland is connected with the pipe joint through rotation, the limiting ring is not easy to rotate, and the damage of the sealing ring caused by rotation is avoided; in addition, when the limit ring and the propelling ring are arranged in a split mode, the propelling ring is not easy to rotate due to the existence of the limit ring, and therefore the sealing ring can be prevented from being damaged due to rotation.

Drawings

FIG. 1 is a schematic view of the screw gland type connecting structure of the water supply and drainage pipeline of the present invention;

fig. 2 is a schematic structural view of the pipe joint of the present invention;

fig. 3 is a schematic structural view of the stop collar of the present invention;

fig. 4 is a schematic structural view of the propulsion ring of the present invention;

fig. 5 is a schematic view of the pipe connection structure of the present invention.

In the figure: 10-a pipeline; 20-pipe joint; 21-a first step; 22-a second step; 23-a first reamer face; 24-a second reamer face; 25-inclined plane; 26-a connecting trough; 30-pressing cover; 40-a limiting ring; 50-a propulsion ring; 60-sealing ring.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

Referring to fig. 1, the present invention provides a screw gland type connection structure for water supply and drainage pipeline, which includes: a pipe 10, a pipe joint 20, and a gland 30. The pipe 10 extends into the pipe joint 20, and the gland 30 is sleeved on the pipe 10 and connected with the pipe joint 20. The pipeline 10 is further sequentially sleeved with a limiting ring 40, a pushing ring 50 and a sealing ring 60, the limiting ring 40, the pushing ring 50 and the sealing ring 60 are all located inside the pipe joint 20, and the inner side and the outer side of the sealing ring 60 are respectively extruded and deformed through the pipeline 10 and the pipe joint 20, so that the inner side and the outer side of the sealing ring 60 are respectively in sealing fit with the pipeline 10 and the pipe joint 20. Compared with the existing two-end extrusion mode, the radial extrusion deformation of the sealing ring 60 is generated between the pipe joint 20 and the pipeline 10, namely the sealing ring 60 is extruded at the inner side and the outer side, and the reaction force of the extrusion cannot act on the gland 30, so that the connectivity cannot be influenced, and the phenomena of falling and blocking cannot easily occur.

Referring to fig. 1 and 2, the pipe joint 20 is provided with a first step 21 and a second step 22 in sequence from the inside to the end (the end close to the corresponding gland 30), and the first step 21 and the second step are present to form a first counterbore surface 23 and a second counterbore surface 24 on the inside of the pipe joint 20. After the pipe 10 is inserted into the pipe joint 20, its end is in contact with the first step 21 and its outer side is in contact with the first counterbore surface 23. The thrust ring 50 and the sealing ring 60 are located between the second counterbore face 24 and the pipe 10, preferably with the sealing ring 60 in contact with the second step 22, ensuring that the sealing ring 60 is pushed into place. The second reaming surface 24 is provided with an inclined surface 25 at a position close to the gland 30, the limiting ring 40 is positioned between the inclined surface 25 and the pipeline 10, the outer side surface of the limiting ring 40 is in contact fit with the inclined surface 25, i.e. the cross section of the limiting ring 40 is trapezoidal, and when the gland 30 pushes, the limiting ring 40 is tightly connected with the pipe joint 20 and the pipeline 10 under the extrusion of the inclined surface 25.

In this embodiment, the sealing ring 60, the thrust ring 50 and the limiting ring 40 move under the action of the gland 30, that is, the gland 30, the limiting ring 40, the thrust ring 50 and the sealing ring 60 contact in sequence; the sealing ring 60 is an O-ring having a cross-sectional diameter larger than the width of the gap between the second counterbore 24 and the pipe 10, and obviously a rectangular sealing ring having a cross-sectional width larger than the width of the gap between the second counterbore 24 and the pipe 10 may also be used.

The lateral wall that the coupling joint 20 is close to the one end of gland 30 is equipped with spread groove 26, and the diapire threaded connection of the inside wall of gland 30 and spread groove 26, gland 30 produce circumferential displacement when rotatory, and the terminal surface of gland 30 and the lateral wall contact of spread groove 26 for spacing to gland 30 avoids the excessive extrusion to sealing washer 60. In this embodiment, to increase the structural continuity of the connection, the outer side wall of gland 30 is flush with the outer side wall of fitting 20.

Referring to fig. 3 and 4, the stop collar 40 has a notch, the thrust ring 50 has no notch, and the notch on the stop collar 40 enables the stop collar 40 to deform (become larger or smaller) in the radial direction, so as to facilitate the stop collar 40 to be sleeved on the pipeline 10, and meanwhile, when the gland 30 is installed, the stop collar 40 is pressed by the inclined surface 25, so that the stop collar 40 is in close contact with the pipeline 10 and the pipe joint 20, thereby preventing the pipeline 10 from falling off, and increasing the reliability of connection. The pushing ring 50 is thin and easy to deform, and can be smoothly installed without a notch.

In this embodiment, the stop ring 40 and the thrust ring 50 are separated, so as to avoid the damage of the sealing ring 60 caused by the rotation motion, and obviously, in other embodiments of the present invention, the stop ring 40 and the thrust ring 50 may also be integrally formed. Furthermore, in other embodiments of the present invention, the following may also be: the limiting ring 40 and the pushing ring 50 are both provided with notches, and when the limiting ring 40 and the pushing ring 50 are integrally formed, the notches on the limiting ring 40 and the pushing ring 50 are preferably consistent in size.

The utility model discloses a water supply and drainage pipeline screw socket gland formula connection structure's installation:

(1) The gland 30, the limiting ring 40, the pushing ring 50 and the sealing ring 60 are sequentially sleeved on the pipeline 10, so that lubricating oil can be coated on the sealing ring 60 before the sealing ring 60 is sleeved for facilitating the installation of the sealing ring 60 and protecting the sealing ring 60;

(2) Extending the pipe 10 into the pipe joint 20 until the pipe 10 contacts the first step 21;

(3) The sealing ring 60, the pushing ring 50 and the limiting ring 40 are sequentially pushed into the pipe joint 20;

(4) The gland 30 is pushed to enable the gland 30 to be in threaded connection with the pipe joint 20, the sealing ring 60, the pushing ring 50 and the limiting ring 40 are gradually pushed to the specified position by the gland 30 in the rotating process, the sealing ring 60 is compressed under the action of the second hole expanding surface 24 and the pipeline 10, and the limiting ring 40 is in close contact with the pipe joint 20 and the pipeline 10 under the action of the inclined surface 25.

Referring to fig. 5, the present invention further provides a pipe connection structure, wherein both ends of the pipe joint are connected to the upstream and downstream pipes by using the screw gland type connection structure of the water supply and drainage pipe.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. The utility model provides a water supply and drainage pipeline screw socket gland formula connection structure which characterized in that includes: a pipe (10), a pipe joint (20), and a gland (30); the pipe (10) extends into the interior of the pipe joint (20); the gland (30) is sleeved on the pipeline (10) and is connected with the pipe joint (20); the pipeline (10) is sequentially sleeved with a limiting ring (40), a pushing ring (50) and a sealing ring (60) which are positioned in the pipe joint (20); the limiting ring (40) is in contact with the gland (30); the sealing ring (60) is extruded and deformed through the pipe joint (20) and the pipeline (10), so that the sealing ring (60) is in sealing fit with the pipe joint (20) and the pipeline (10) respectively.

2. The screw gland type connecting structure of the water supply and drainage pipeline according to claim 1, wherein the limiting ring (40), the pushing ring (50) and the sealing ring (60) are sequentially contacted, and the pushing ring (50) and the sealing ring (60) are pushed by the limiting ring (40) to deform the sealing ring (60) between the pipe joint (20) and the pipeline (10) to form sealing fit.

3. Screw cap type connection structure of a water supply and drainage pipeline according to claim 1, characterized in that the pipe joint (20) is provided with a first step (21) and a second step (22) in sequence from the inside to the end part, so that the inner side of the pipe joint (20) is formed with a first reaming surface (23) and a second reaming surface (24) in sequence; after the pipeline (10) extends into the pipe joint (20), the end part of the pipeline is contacted with the first step (21), and the outer side surface of the pipeline is contacted with the first reaming surface (23); the thrust ring (50) and the sealing ring (60) are both located between the second reaming surface (24) and the outer side of the pipe (10).

4. The screw gland type connecting structure of the water supply and drainage pipeline according to claim 3, wherein a bevel (25) is arranged at a position of the second reaming surface (24) close to the gland (30), and the outer side surface of the limiting ring (40) is in contact fit with the bevel (25).

5. The screw gland type connecting structure of the water supply and drainage pipeline according to claim 1, wherein the sealing ring (60) is an O-shaped sealing ring.

6. The screw gland type connecting structure of the water supply and drainage pipeline according to claim 1, wherein the limiting ring (40) is provided with a notch, or the limiting ring (40) and the pushing ring (50) are both provided with notches.

7. The screw gland type connecting structure of the water supply and drainage pipeline according to claim 6, wherein the limiting ring (40) and the pushing ring (50) are arranged separately or integrally.

8. The screw cap type connection structure of the water supply and drainage pipeline according to any one of claims 1 to 7, wherein the end of the pipe joint (20) is provided with a connecting groove (26), the press cap (30) is connected with the bottom wall of the connecting groove (26), and the outer side wall of the press cap (30) is flush with the outer side wall of the pipe joint (20).

9. The screw cap type connection structure of water supply and drainage pipeline according to claim 8, wherein the pressing cap (30) is in threaded connection with the bottom wall of the connection groove (26).

10. A pipeline connecting structure, characterized in that both ends of a pipe joint are connected with an upstream pipeline and a downstream pipeline by adopting the screw gland type connecting structure of the water supply and drainage pipeline as claimed in any one of claims 1 to 9.