CN114060636A

CN114060636A - PVC pipe socket thrust device and installation method thereof

Info

Publication number: CN114060636A
Application number: CN202111159678.0A
Authority: CN
Inventors: 庞磊; 陈华; 谭凯; 徐伟; 王翔宇
Original assignee: Yibin Tianyi New Material Technology Co ltd
Current assignee: Yibin Tianyi New Material Technology Co ltd
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-02-18

Abstract

The invention discloses a PVC pipe socket thrust device and an installation method thereof, the thrust device is watertight by matching the convex profile with a PVC pipe, providing the convex profile deformation space and the water pressure surface through the concave profile, utilizing the first thrust arc to elastically deform in a circular surface to clamp the sealing ring on the pipeline socket R port, the second thrust arc is matched with the first thrust arc to form a ring, the thrust ring is anchored by the outer clamping teeth, the socket thrust device has simple structure, good sealing thrust effect, low manufacturing cost and simple and rapid installation process by anchoring the inserted PVC pipe through the inner latch, the installation efficiency can be greatly improved, the adverse effect caused by manual misoperation is reduced, and the pipe joint is suitable for connection between pipelines, pipeline turning, tee joints, pipe end plugs and socket joint operation at the reducing positions of the pipelines.

Description

PVC pipe socket thrust device and installation method thereof

Technical Field

The invention relates to the field of PVC (polyvinyl chloride) pipelines, in particular to a PVC pipe socket thrust device and an installation method thereof.

Background

PVC water supply pipelines are widely used in water supply projects such as municipal administration, buildings, mountainous areas and the like. Unlike PE pipes, pipes of PVC material are typically joined by means of a socket connection. The socket connection has the advantage of being easy to install compared with the welded connection of PE pipes, but also has the significant disadvantage that the conventional socket connection does not have a thrust function and requires fixing of the connection by means of external force. The traditional scheme is that a cement pier (also called a concrete anchor pier or a buttress) is adopted, and the cement pier is used for resisting external thrust generated by internal water pressure at a pipeline turning part, a tee joint, a pipe end plug and a pipeline reducing part so as to prevent a pipeline joint from loosening, disjointing and leaking water and influence the safe operation of a pipeline. However, because the volume of the cement pier is large, the construction consumes large manpower and material resources, and the construction is often limited by the terrain, so the thrust problem of the connection of the socket pipe cannot be completely solved.

Patent US2012313368A1 discloses a take metal staple bolt machinery anti-thrust structure of sawtooth structure, and its principle utilizes the staple bolt of taking the sawtooth to lock the pipeline that needs to connect, then utilizes bolted connection mode to fix metal staple bolt and metal connecting rod. Compared with a cement pier thrust scheme, the mechanical thrust has the advantages of no geographical condition limitation, short construction period and good thrust effect. Compared with cement piers, the installation is less limited by geographical conditions, and the method can be used for scenes where some cement piers cannot be used. However, the invention has higher installation cost than the cement pier, but the construction period can be greatly reduced. The requirement is higher to the installation, and the installation of screwing up nut, bolt and wedge is comparatively time-consuming to human error appears easily, too big torsion can cause the deformation of PVC pipe wall during the installation, and the inside sawtooth structure of staple bolt harms the pipe wall easily, makes the pipe wall bearing point load, often breaks at this department at first during the pressurized.

Patent US20080007062a1 discloses an outer metal ring with a back teeth, an inner metal ring with a back teeth and a sealing rubber ring as main structures. Through the cooperation of inside and outside becket during the pipeline socket, pawl and pipeline inner wall are controlled each other on the becket, utilize to bite tight power and play and connect the thrust effect, and this result connection effect and joint strength are all better, but outer becket need put into in the fashioned flaring of R mouth, and its structure is complicated, and the shaping process also has a great deal of inconvenience, leads to the manufacturing cost of this kind of scheme higher.

Disclosure of Invention

The invention aims to: aiming at the problems of poor thrust effect, complex installation process and high manufacturing cost of the existing PVC pipe socket thrust structure in the prior art, the PVC pipe socket thrust device and the installation method thereof are provided.

In order to achieve the purpose, the invention adopts the technical scheme that:

a PVC pipe bearing thrust device comprises a sealing ring, a first thrust circular arc and a second thrust circular arc, wherein the first thrust circular arc and the second thrust circular arc can be spliced into a complete thrust circular ring, the cross sectional shapes of the first thrust circular arc and the second thrust circular arc are the same, the arc length of the second thrust circular arc is 1/5-1/4 of the arc length of the first thrust circular arc, the thrust circular ring is a rigid member and comprises a convex profile and a concave profile, the thrust circular ring comprises at least one outer latch and at least one inner latch, the sealing ring is arranged at a pipe socket R, the thrust circular ring is arranged at the pipe socket R and matched with the sealing ring, the outer latch is matched with the outer side of the pipe socket R, the inner latch is matched with the outer wall of a pipe which is inserted, the convex profile protrudes out of the pipe socket R and inclines to the side far away from the thrust circular ring, the concave profile is arranged between the convex profile and the inner side of the socket R mouth.

When the anti-dropping device is used, a PVC pipe is inserted into a pipe socket, penetrates through the anti-dropping ring and the sealing ring, the convex profile is toppled towards one side of the concave profile, and the convex profile is tightly attached to the outer wall of the inserted PVC pipe; when the anti-loosening and anti-leakage pipeline joint is acted by water pressure in a pipeline, the sealing ring is extruded outwards, acting force is transmitted to the anti-loosening circular ring, the outer latch and the inner wall of the outer side of the R socket of the socket are acted in the outward moving process of the anti-loosening and anti-leakage pipeline joint, the inner latch is in hard contact with the outer wall of the PVC pipe inserted into the socket due to reaction force and is embedded into the outer wall of the PVC pipe, the greater the external acting force is, the greater the meshing degree between the inner latch and the outer wall of the PVC pipe is, the socket and the inserted PVC pipe are locked by using the meshing force between the inner latch and the PVC pipe, the pipe joint is prevented from loosening, releasing and leaking water, even if the pipeline joint is subjected to high-strength extrusion such as earthquake and the like to generate large displacement, the joint can be prevented from releasing, and the safety of the pipeline is ensured.

By adopting the PVC pipe socket thrust device, the convex profile is matched with a PVC pipe for water tightness, the concave profile provides a convex profile deformation space and a water pressure surface, the first thrust arc is utilized to elastically deform and clamp the sealing ring in the circular surface to the pipeline socket R port, the second thrust arc is matched with the first thrust arc for ring formation, the thrust ring is anchored by the outer clamping teeth, and the inserted PVC pipe is anchored by the inner clamping teeth.

Preferably, the sealing ring further comprises a first groove and a first boss, the thrust ring further comprises a second groove and a second boss, the first groove is matched with the second boss, the second groove is matched with the first boss, and the sealing ring and the thrust ring are mutually meshed through the first boss and the second boss.

By adopting the structure, the sealing ring and the thrust ring can be tightly matched through the mutual occlusion of the first boss and the second boss, the sealing ring is prevented from being separated during pressure bearing, and the watertight effect is improved.

Preferably, the height of the outer clamping tooth is 1mm-2mm, and the tooth angle is 55-65 degrees.

Preferably, the height of the inner latch is 1mm-2mm, and the tooth angle is 55-65 degrees.

Preferably, the sealing ring is made of one or a mixture of more of ethylene propylene diene monomer, nitrile rubber, styrene butadiene rubber and natural rubber.

Preferably, the thrust ring is made of one of stainless steel, carbon steel, casting or engineering plastics.

Preferably, the complete thrust ring is machined and cut into the first and second thrust arcs.

Preferably, the outer sides of two ends of the first thrust arc are respectively provided with a blind hole.

By adopting the structure, the blind holes can be clamped by pliers-like tools to restrain the inward contraction of the two ends of the first thrust circular arc, the operation is convenient, and the efficiency is improved.

Further preferably, the diameter of the blind hole is 4mm-6 mm.

The invention also provides a method for mounting the PVC pipe socket thrust device, which comprises the following steps:

arranging the sealing ring at the socket R port of the pipeline;

restraining the two ends of the first thrust arc from being inwardly retracted, arranging the first thrust arc at the pipeline socket R port, removing the restraint, elastically resetting the first thrust arc, and fixing the sealing ring in the pipeline socket R port;

and arranging the second thrust arc to be matched with the first thrust arc to form a ring.

By adopting the installation method of the PVC pipe socket thrust device, the first thrust arc is elastically deformed in the circular surface to clamp the sealing ring on the pipeline socket R port, and the second thrust arc and the first thrust arc are matched to form a ring, so that the installation process is simple, convenient and quick, the installation efficiency can be greatly improved, and the effect is good.

In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:

1. according to the PVC pipe socket thrust device, the convex profile is matched with a PVC pipe for watertight sealing, the concave profile provides a convex profile deformation space and a water pressure surface, the first thrust arc is utilized to elastically deform in a circular surface to clamp the sealing ring in the pipeline socket R, the second thrust arc is matched with the first thrust arc for ring forming, the thrust ring is anchored through the outer clamping teeth, and the inserted PVC pipe is anchored through the inner clamping teeth;

2. according to the PVC pipe socket thrust brake, the first boss and the second boss are mutually meshed, so that the sealing ring and the thrust ring can be tightly matched, the sealing ring is prevented from being separated when bearing pressure, and the watertight effect is improved;

3. according to the PVC pipe socket thrust device, the two blind holes can be clamped by a pliers-type tool to restrain the inward contraction of the two ends of the first thrust arc, so that the operation is convenient, and the efficiency is improved;

4. according to the mounting method of the PVC pipe socket thrust device, the first thrust arc is elastically deformed in the circular surface to clamp the sealing ring to the pipeline socket R port, and the second thrust arc and the first thrust arc are matched to form a ring, so that the mounting process is simple, convenient and rapid, the mounting efficiency can be greatly improved, and the mounting effect is good.

Drawings

FIG. 1 is a schematic structural view of a seal ring;

FIG. 2 is a schematic structural view of a first anti-thrust arc and a second anti-thrust arc;

FIG. 3 is a front view of FIG. 2;

FIG. 4 is a fragmentary schematic view of a seal ring;

FIG. 5 is a segmental schematic view of a first thrust arc;

FIG. 6 is a schematic view of the engagement of the seal ring and the first anti-thrust arc;

FIG. 7 is a schematic illustration of the location of a blind hole;

fig. 8 is a schematic view of the structure of the mounting clip.

The labels in the figure are: 1-sealing ring, 11-convex profile, 12-concave profile, 13-first groove, 14-first boss, 2-first thrust arc, 21-outer latch, 22-inner latch, 23-second groove, 24-second boss, 25-blind hole, 3-second thrust arc, 4-pipeline socket R, 41-socket R outside, 42-socket R inside, 5-mounting pliers, 51-end column, and 52-handle.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example 1

As shown in fig. 1 to 8, the PVC pipe socket thrust device of the present invention includes a rubber sealing ring 1, a first thrust arc 2 and a second thrust arc 3.

As shown in fig. 2, 3 and 5, a first thrust circular arc 2 and a second thrust circular arc 3 the first thrust circular arc 2 and the second thrust circular arc 3 can be spliced into a complete thrust circular ring, the cross-sectional shapes of the first thrust circular arc 2 and the second thrust circular arc 3 are the same, the arc length of the second thrust circular arc 3 is 1/5-1/4 of the arc length of the first thrust circular arc 2, the thrust circular ring is a rigid member, the thrust circular ring is made of one of stainless steel, carbon steel, castings or engineering plastics, the thrust circular ring is machined completely and cut into the first thrust circular arc 2 and the second thrust circular arc 3, and the sealing ring 1 is made of one or a mixture of ethylene propylene diene monomer, butadiene styrene rubber, and natural rubber.

As shown in fig. 1, 4 and 6, the seal ring 1 includes a convex profile 11, a concave profile 12, a first groove 13 and a first boss 14, the convex profile 11, the concave profile 12, the first groove 13 and the first boss 14 are arranged in a circle along the inner surface of the seal ring 1, the thrust ring includes a second groove 23, a second boss 24, at least one outer latch 21 and at least one inner latch 22, in this embodiment, the outer latch 21 is one, the inner latch 22 is four, wherein the outer latch 21 has a height of 1mm to 2mm, a tooth angle of 55 ° to 65 °, the inner latch 22 has a height of 1mm to 2mm, and a tooth angle of 55 ° to 65 °, so as to have a better biting effect, the first groove 13 is adapted to the second boss 24, and the second groove 23 is adapted to the first boss 14.

The sealing ring 1 is arranged at a pipeline socket R port 4, the thrust ring is arranged at the pipeline socket R port 4 and is matched with the sealing ring 1, specifically, the sealing ring 1 and the thrust ring are mutually meshed through the first boss 14 and the second boss 24, the outer latch 21 is matched with the outer side 41 of the socket R port, the inner latch 22 is matched with the outer wall of an inserted pipeline, the convex profile 11 protrudes out of the pipeline socket R port 4 and inclines to one side far away from the thrust ring, and the concave profile 12 is arranged between the convex profile 11 and the inner side 42 of the socket R port.

As shown in fig. 7, the outer sides of the two ends of the first thrust arc 2 are respectively provided with a blind hole 25, the diameter of the blind hole 25 is 4mm-6mm, by adopting the structure, the installation clamp 5 shown in fig. 8 can clamp two blind holes 25 to restrain the inward contraction of the two ends of the first thrust arc 2, the operation is convenient, and the efficiency is improved, wherein one side of a hinge point of the installation clamp 5 is provided with a handle 52, the other side of the hinge point is provided with a head post 51, and the head post 51 is adapted to the blind hole 25.

When the anti-thrust sealing ring is used, a PVC pipe is inserted into a pipe socket, penetrates through the anti-thrust ring and the sealing ring 1, the convex profile 11 is inclined towards one side of the concave profile 12, and the convex profile 11 is tightly attached to the outer wall of the inserted PVC pipe; when the sealing ring is acted by water pressure in a pipeline, the sealing ring 1 is extruded outwards, acting force is transmitted to the thrust ring, the outer latch 21 acts on the inner wall of the outer side 41 of the socket R in the outward moving process of the thrust ring, the inner latch 22 is in hard contact with the outer wall of the PVC pipe inserted into the socket due to the reaction force and is embedded into the outer wall of the PVC pipe, the greater the external acting force is, the greater the meshing degree of the inner latch 22 and the outer wall of the PVC pipe is, the socket and the inserted PVC pipe are locked by using the meshing force between the inner latch 22 and the PVC pipe, the loosening, the disjointing and the water leakage of a pipeline joint are prevented, even if the pipeline joint is subjected to high-strength extrusion such as earthquake and the like to generate large displacement, the disjointing of the joint can be prevented, and the safety of the pipeline is ensured.

The PVC pipe socket thrust device provided by the invention has the advantages that the convex profile 11 is matched with a PVC pipe for water tightness, the concave profile 12 provides a deformation space and a water pressure surface of the convex profile 11, the first thrust circular arc 2 is utilized to elastically deform in the circular surface to clamp the sealing ring 1 in the pipeline socket R port 4, the second thrust circular arc 3 is matched with the first thrust circular arc 2 for ring formation, the thrust circular ring is anchored through the outer latch 21, the inserted PVC pipe is anchored through the inner latch 22, the first boss 14 and the second boss 24 are mutually meshed to enable the sealing ring 1 and the thrust circular ring to be tightly matched, the sealing ring 1 is prevented from being separated when bearing pressure is carried out, the water tightness effect is improved, the socket thrust device is simple in structure, good in sealing thrust effect, low in manufacturing cost and simple, convenient and rapid in installation process, the installation efficiency can be greatly improved, the adverse effect caused by manual misoperation is reduced, and the pipe joint is suitable for connection between pipelines, pipeline turning, tee joints, pipe end plugs and socket joint operation at the reducing positions of the pipelines.

Example 2

As shown in fig. 1 to 8, the method for mounting a PVC pipe socket thrust device according to embodiment 1 of the present invention includes:

arranging the sealing ring 1 at the pipeline socket R port 4;

restraining the two ends of the first thrust circular arc 2 from being inwardly retracted, arranging the first thrust circular arc 2 at the pipeline socket R port 4, removing the restraint, elastically resetting the first thrust circular arc 2, and fixing the sealing ring 1 in the pipeline socket R port 4;

and the second thrust arc 3 is matched with the first thrust arc 2 to form a ring.

According to the mounting method of the PVC pipe socket thrust device, the first thrust arc 2 is elastically deformed in a circular surface to clamp the sealing ring 1 to the pipeline socket R port 4, and the second thrust arc 3 and the first thrust arc 2 are matched to form a ring, so that the mounting process is simple, convenient and rapid, the mounting efficiency can be greatly improved, and the mounting effect is good.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. The PVC pipe bearing thrust stop device is characterized by comprising a sealing ring (1), a first thrust circular arc (2) and a second thrust circular arc (3), wherein the first thrust circular arc (2) and the second thrust circular arc (3) can be spliced into a complete thrust circular ring, the cross-sectional shapes of the first thrust circular arc and the second thrust circular arc are the same, the arc length of the second thrust circular arc (3) is 1/5-1/4 of the arc length of the first thrust circular arc (2), the thrust circular ring is a rigid piece, the sealing ring (1) comprises a convex profile (11) and a concave profile (12), the thrust circular ring comprises at least one outer latch (21) and at least one inner latch (22), the sealing ring (1) is arranged at a pipe socket R port (4), the thrust circular ring is arranged at the pipe socket R port (4) and is matched with the sealing ring (1), the outer latch (21) is matched with the outer side (41) of the R-shaped socket, the inner latch (22) is used for being matched with the outer wall of an inserted pipeline, the convex profile (11) protrudes out of the R-shaped socket (4) of the pipeline and inclines to the side far away from the thrust ring, and the concave profile (12) is arranged between the convex profile (11) and the inner side (42) of the R-shaped socket.

2. The PVC pipe socket thrust device according to claim 1, wherein the sealing ring (1) further comprises a first groove (13) and a first boss (14), the thrust ring further comprises a second groove (23) and a second boss (24), the first groove (13) is matched with the second boss (24), the second groove (23) is matched with the first boss (14), and the sealing ring (1) and the thrust ring are mutually meshed through the first boss (14) and the second boss (24).

3. The PVC pipe socket thrust runner of claim 1, wherein the height of the outer latch (21) is 1mm-2mm and the tooth angle is 55 ° -65 °.

4. The PVC pipe socket thrust runner of claim 1, wherein the height of the inner latch (22) is 1mm-2mm and the tooth angle is 55 ° -65 °.

5. The PVC pipe socket thrust brake of claim 1, wherein the sealing ring (1) is made of one or a mixture of more of ethylene propylene diene monomer, nitrile rubber, styrene butadiene rubber and natural rubber.

6. The PVC pipe socket thrust device of claim 1, wherein the thrust ring is made of one of stainless steel, carbon steel, casting or engineering plastic.

7. The PVC pipe socket thrust device according to claim 1, wherein the complete thrust ring is machined and cut into the first thrust arc (2) and the second thrust arc (3).

8. The PVC pipe socket thrust stop according to any one of claims 1 to 7, wherein the outer sides of the two ends of the first thrust arc (2) are respectively provided with a blind hole (25).

9. PVC pipe socket thrust runner according to claim 8, characterized in that the diameter of the blind hole (25) is 4-6 mm.

10. A method of mounting a PVC pipe socket thrust runner according to any of claims 1 to 9, comprising:

arranging the sealing ring (1) at the pipeline socket R (4);

constraining the two ends of the first thrust circular arc (2) to be internally contracted, arranging the first thrust circular arc (2) at the pipeline socket R port (4), removing the constraint, elastically resetting the first thrust circular arc (2), and fixing the sealing ring (1) in the pipeline socket R port (4);

and arranging the second thrust arc (3) to be matched with the first thrust arc (2) to form a ring.