CN210179105U

CN210179105U - FRD double containment detects in real time and closes water socket joint

Info

Publication number: CN210179105U
Application number: CN201921392388.9U
Authority: CN
Inventors: Jun Liang; 梁军
Original assignee: Sichuan Yuanshan Science And Technology Co Ltd
Current assignee: Yuandan new material technology (Chengdu) Co.,Ltd.
Priority date: 2019-04-02
Filing date: 2019-08-26
Publication date: 2020-03-24
Anticipated expiration: 2029-08-26

Abstract

The utility model belongs to the technical field of close water connection, concretely relates to FRD double containment point-in-time measuring closes water socket joint. To probably be mutual contact and inclosed among the prior art between socket and the bellmouth, mutual contact and inclosed position probably lead to the inside connectivity of annular space to be interrupted, and then make the leakproofness inspection of double containment socket joint probably appear detecting incomplete problem, the technical scheme of the utility model is that: the socket is a joint part of the insertion end, and the socket is a joint part of the socket end. The outer wall of the socket is provided with an annular pressure test groove, two sides of the pressure test groove are respectively provided with an annular sealing ring mounting groove, and a sealing ring is mounted in the sealing ring mounting groove; and the socket is provided with a pressure test hole, and the position of the pressure test hole corresponds to the pressure test groove. In addition, a baffle plate can be arranged in the pressure test groove. The utility model is suitable for a connection of drain line.

Description

FRD double containment detects in real time and closes water socket joint

Technical Field

The utility model belongs to the technical field of close water connection, concretely relates to FRD double containment point-in-time measuring closes water socket joint.

Background

The drain pipeline is formed by connecting and installing drain pipes which are processed by a plurality of sections of separation, and the requirement on the connection structure between the water pipes can keep good sealing performance for a long time. In the prior art, the connection between water pipes usually adopts a socket joint, and the connection mode of the socket joint is a connection mode of inserting a socket at one end of a pipe or a pipe fitting into a bell mouth of a to-be-connected piece and filling a sealing material in an annular space. Its advantage is easy installation.

The sealing of the socket joint can take various forms, wherein double sealing is a very effective sealing form. And, set up a pressure testing hole through the position between two sealing washers on the bellmouth, can conveniently detect socket joint's leakproofness in real time.

However, since the annular gaps of the socket and the socket are not uniformly distributed in the circumferential direction, there may be a large gap in some parts, there may be a small gap in some parts, and even there may be a contact and a sealing between the socket and the socket in some parts, and the contact and the sealing may cause the communication interruption in the annular gap. Thus, it may be difficult to fully detect the tightness of the annulus over the entire circumference by providing only one pressure test hole at a certain point. In addition, because the drainage pipeline is usually installed underground, once leakage and other problems occur in the use process, the maintenance is time-consuming, and if the water pipe needs to be replaced, the normal operation of the pipeline is seriously affected.

SUMMERY OF THE UTILITY MODEL

To probably be mutual contact and inclosed among the prior art between socket and the bellmouth, mutual contact and inclosed position probably lead to the inside connectivity of annular space to be interrupted, and then make the leakproofness inspection of double containment socket joint probably appear detecting incomplete problem, the utility model provides a FRD double containment detects water socket joint immediately, its aim at: the structure of the double-seal socket joint is improved, so that the tightness detection of the annular gap in the whole circumferential range can be completed through one pressure test hole.

The utility model adopts the technical scheme as follows:

an FRD double-seal immediate-detection closed water socket joint comprises a socket and a socket, wherein the socket is a joint part of an insertion end, and the socket is a joint part of a socket end. The outer wall of the socket is provided with an annular pressure test groove, two sides of the pressure test groove are respectively provided with an annular sealing ring mounting groove, and a sealing ring is mounted in the sealing ring mounting groove; and the socket is provided with a pressure test hole, and the position of the pressure test hole corresponds to the pressure test groove. Wherein the FRD is an acronym of an English expression of Rapidtest Flat supported Double sealed socket connector.

In the prior art, a pressure test groove is not specially arranged, the outer diameter of a socket is matched with the inner diameter of a socket, and in this case, because a closed part caused by extrusion, deformation, foreign matter blockage and the like possibly exists in an annular gap between the socket and the socket, the connectivity in the annular gap is interrupted, so that the tightness in the whole annular area between two sealing rings cannot be completely guaranteed to be detected by arranging a pressure test hole at any position between double sealing structures. Therefore, according to the technical scheme, the pressure testing groove is specially arranged between the two sealing rings, enough space is reserved in the pressure testing groove, the contact and the sealing between the outer wall of the socket and the inner wall of the socket in the range of the pressure testing groove can be avoided, and the annular space in the pressure testing groove is ensured to be completely communicated. When the tightness detection is carried out through the pressure test hole, the fluid for pressure test can fully fill the whole annular area, and the tightness detection in the whole annular range is completed. The situation that the water leaks when the tightness detection is passed and the water is actually used is completely avoided.

Preferably, a baffle plate for separating the pressure test groove is arranged in the pressure test groove; the pressure test holes are two and are respectively arranged on two sides of the baffle.

Even if the drain pipe has good sealing performance during installation, leakage is inevitably generated due to corrosion, looseness and the like in the subsequent long-term use process. The drain lines are usually buried underground and it is very cumbersome, labor intensive and may affect the proper operation of the lines for a long time if the leaking drain needs to be replaced. Through the preferable scheme, the annular space in the pressure test groove is partitioned by the baffle plate, so that the communication line from one pressure test hole to the other pressure test hole in the space is unique. Like this, when certain socket joint on the drain line appears leaking, pour into sealed glue into through a pressure testing hole in to the pressure testing groove, through another pressure testing hole exhaust air, and then can fill totally in the pressure testing groove and seal glue, finally make the socket joint who leaks restore sealing performance. The socket joint can be maintained through a simple method, the whole drain pipe is prevented from being replaced due to the water leakage problem, the maintenance time is shortened, and the influence of maintenance on the normal operation of the pipeline is reduced.

The socket joint in the prior art does not have the function of quick maintenance for two reasons: firstly, only one pressure test hole is usually arranged in the prior art, so that air in an annular space cannot be discharged, the sealant is difficult to fill completely, and the effect of stopping leakage by using the sealant cannot be realized; secondly, the socket joint in the prior art has no pressure test groove, so that the outer wall of the socket is contacted and sealed with the inner wall of the bellmouth due to extrusion, deformation, foreign matter blockage and the like, the connectivity in the annular space is interrupted, and the sealant cannot be completely filled; in addition, even if the effect of blocking leakage is temporarily realized through incomplete filling, the drain pipe is buried underground for a long time, the pressure is high, foreign matters such as silt easily enter the annular gap, the communication part and the closed part in the annular gap are easy to change, and a new leakage point appears, so that the effect of blocking leakage is not easy to maintain for a long time through incomplete sealing glue filling. In the preferred scheme, the pressure test groove can be completely filled with the sealant, which is equivalent to adding a complete sealing ring, so that a new leakage point is not easy to appear in the subsequent long-term operation process.

Preferably, four annular partition plates are arranged on the outer wall of the socket in parallel, and the pressure test groove and the sealing ring installation groove are surrounded by the outer wall of the socket and the four annular partition plates. Through setting up annular baffle, can promote the degree of depth of examination pressure tank and sealing washer mounting groove effectively, increase the space in the groove.

Further preferably, the outer wall of the bellmouth is provided with four reinforcing rings, and the positions of the reinforcing rings correspond to the positions of the annular partition plates one by one. After the socket is inserted into the bell mouth, the top of the annular partition plate can extrude the bell mouth, so that the reinforcing ring is arranged at the corresponding position, the bearing capacity of the bell mouth can be enhanced, and the mechanical stability of the socket joint is enhanced.

Preferably, one end of the spigot, which faces the opening, is provided with an annular pressing block, one side of the socket, which faces the socket piece, is provided with an annular inclined surface, and the pressing block is matched with the inclined surface. In the preferred scheme, the pressure block and the inclined plane form extrusion after the socket is inserted in place, so that the pressure test hole is ensured to be aligned with the pressure test groove.

Preferably, the sealing ring is a profiled sealing ring. The special-shaped sealing ring, namely the special-shaped section sealing ring, is a sealing ring system with sections of other shapes except circular and rectangular sections, such as Y-shaped, V-shaped, U-shaped, X-shaped, D-shaped, triangular and T-shaped sections. The special-shaped sealing ring has different effects according to the structural characteristics, for example, has better sealing effect, strong anti-twisting force, difficult sliding and the like under the condition of smaller compression force.

Preferably, one side of the bellmouth is provided with a plane supporting plate, the top of the plane supporting plate is provided with an arc surface matched with the outer wall of the bellmouth, and the bottom of the plane supporting plate is provided with a plane. The plane supporting plate is arranged at the lower end of the bellmouth and used for supporting the ground, so that the position of the bellmouth is more solid.

Further preferably, the planar support plate is a mesh plate. The grid can hold the foreign matter, therefore the grid plate is convenient for install in the place that silt is more, and installs more smoothly more easily.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. according to the technical scheme, the pressure testing groove is specially arranged between the two sealing rings, enough space is reserved in the pressure testing groove, the contact and the sealing condition between the outer wall of the inserting port and the inner wall of the socket in the range of the pressure testing groove can be avoided, and the annular space in the pressure testing groove is ensured to be completely communicated. When the tightness detection is carried out through the pressure test hole, the fluid for pressure test can fully fill the whole annular area, and the tightness detection in the whole annular range is completed. The situation that the water leaks when the tightness detection is passed and the water is actually used is completely avoided.

2. The baffle is used for separating an annular space in the pressure test groove, so that a communication line from one pressure test hole to another pressure test hole in the space is unique. Like this, when certain socket joint on the drain line appears leaking, pour into sealed glue into through a pressure testing hole in to the pressure testing groove, through another pressure testing hole exhaust air, and then can fill totally in the pressure testing groove and seal glue, finally make the socket joint who leaks restore sealing performance. The socket joint can be maintained through a simple method, the whole drain pipe is prevented from being replaced due to the water leakage problem, the maintenance time is shortened, and the influence of maintenance on the normal operation of the pipeline is reduced.

3. When the leak stoppage is maintained, the pressure test groove can be completely filled with the sealant, which is equivalent to adding a complete sealing ring, so that a new leakage point is not easy to appear in the subsequent long-term operation process.

4. Through setting up annular baffle, can promote the degree of depth of examination pressure tank and sealing washer mounting groove effectively, increase the space in the groove.

5. After the socket is inserted into the bell mouth, the top of the annular partition plate can extrude the bell mouth, so that the reinforcing ring is arranged at the corresponding position, the bearing capacity of the bell mouth can be enhanced, and the mechanical stability of the socket joint is enhanced.

6. After the socket is inserted in place, the pressing block and the inclined plane form extrusion, so that the limiting effect is achieved, and the pressure test hole is ensured to be aligned with the pressure test groove.

7. The sealing ring adopts the special-shaped sealing ring, and the special-shaped sealing ring has different effects according to the structural characteristics, for example, has better sealing effect, strong anti-twisting force, difficult sliding and the like under the condition of smaller compression force.

8. The plane supporting plate is arranged at the lower end of the bellmouth and used for supporting the ground, so that the position of the bellmouth is more solid.

9. The grid can hold the foreign matter, therefore the grid plate is convenient for install in the place that silt is more, and installs more smoothly more easily.

Drawings

The invention will now be described, by way of example, with reference to the accompanying drawings, in which:

fig. 1 is a schematic cross-sectional structure diagram of embodiment 1 of the present invention;

fig. 2 is a schematic cross-sectional structure of embodiment 1 of the present invention along the direction B-B in fig. 1;

fig. 3 is a schematic cross-sectional structure of embodiment 1 of the present invention along the direction a-a in fig. 1;

fig. 4 is a schematic structural view of a socket in embodiment 1 of the present invention;

fig. 5 is a schematic structural view of a socket in embodiment 1 of the present invention;

fig. 6 is a schematic cross-sectional structure diagram of embodiment 2 of the present invention;

fig. 7 is a schematic cross-sectional structure of embodiment 2 of the present invention along the direction a-a in fig. 6;

fig. 8 is a schematic three-dimensional structure diagram of a planar supporting plate in embodiment 2 of the present invention;

fig. 9 is a left side view of the planar support plate in embodiment 2 of the present invention;

fig. 10 is a front view of a planar support plate in embodiment 2 of the present invention;

fig. 11 is a schematic cross-sectional view of a prior art annular gap in which connectivity discontinuities may occur.

The pressure testing device comprises a socket 1, an annular partition plate 11, a pressing block 12, a baffle 13, a socket 2, a reinforcing ring 21, a pressure testing hole 22, a slope 23, a sealing ring 3, a pressure testing groove 4, a pipeline 5, a plane supporting plate 6, a notch 61, a communication part 7 and a sealing part 8.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

The present invention will be described in detail with reference to fig. 1 to 10. It should be noted that some of the figures are appropriately enlarged in scale to clearly illustrate the structures, and thus the scale of the structures illustrated in the figures should not be construed as limiting the scope of the present application. Furthermore, the FRD double-seal immediate-detection closed water socket joint in the present application is not only applicable to connection between drain pipes, but also applicable to connection between a drain pipe and a water valve, connection between a drain pipe and a water storage tank, and the like, and therefore the scope of protection of the present application cannot be limited by the application scenarios exemplified by the embodiments.

Example 1

The socket joint in the embodiment is used for connecting a polyolefin plastic drain pipe and comprises a socket 1 and a socket 2, wherein the socket 1 is a part used for inserting in the socket joint, and the socket 2 is a part used for socket in the socket joint. The outer wall of the socket 1 is provided with an annular pressure test groove 4, and two annular sealing ring mounting grooves are respectively arranged on two sides of the pressure test groove 4. In order to set up the deeper pressure testing groove 4 of degree of depth and sealing washer mounting groove, 1 outer wall parallel arrangement of socket has four annular baffles 11, pressure testing groove 4 and sealing washer mounting groove enclose by 1 outer wall of socket and four annular baffles 11. Because the drain pipe has more specifications, the commonly used specification outer diameter range comprises 200-1200mm, and the groove depths of the pressure test groove 4 and the sealing ring installation groove are properly adjusted corresponding to different outer diameters, for example, the outer diameter of the drain pipe with a certain specification is 400mm, and the groove depths of the pressure test groove 4 and the sealing ring installation groove are both 20mm by setting the height of the annular partition plate 11. The outer wall of the socket 2 is provided with four reinforcing rings 21, the positions of the reinforcing rings 21 correspond to the positions of the annular partition plates 11 one by one, and the reinforcing rings 21 can increase the capability of the socket 2 for bearing the extrusion of the annular partition plates 11. Install sealing washer 3 in the sealing washer mounting groove, two sealing washers 3 constitute the double containment structure among the prior art, and sealing washer 3 can select one kind or two kinds of special-shaped sealing washer according to the demand. The special-shaped sealing ring is a sealing ring with a Y-shaped, V-shaped, U-shaped, X-shaped, D-shaped, triangular or T-shaped cross section. Be provided with pressure testing hole 22 on bellmouth 2, the position and the pressure testing groove 4 of pressure testing hole 22 correspond, and pressure testing hole 22 sets up to the screw hole, conveniently is connected with the equipment that carries out the leakproofness test. In addition, after the installation of the socket joint is completed and the tightness is detected, the threaded hole can be blocked by a cock with threads, so that foreign matters are prevented from entering the pressure test groove 4. One end of the socket 1 is an opening, and the other end is connected with an insertion part; one end of the bell mouth 2 is an opening, and the other end is connected with a socket piece. In this embodiment, in order to limit the insertion depth of the socket 1, the pressure testing hole 22 is conveniently aligned with the pressure testing groove 4, the socket 1 is provided with an annular pressing block 12 towards the open end, one side of the socket 2 towards the socket is provided with an annular inclined surface 23, and the pressing block 12 is matched with the inclined surface 23.

In the prior art, the annular gap between the outer wall of the socket 1 and the inner wall of the socket 2 is very small, so that the situation of connectivity interruption is easy to occur under the action of extrusion, deformation, foreign matter blockage and other reasons. As shown in fig. 11, when the annular gap is small, more than one closed portion 8 is likely to appear in the annular gap, and the closed portion 8 divides the annular gap into a plurality of independent communicating portions. Thus, when a pressure test hole is arranged at a certain point on the circumference for pressure test, the sealing performance of the whole circumferential range cannot be detected.

The difference between the structure of the embodiment and the prior art is that a pressure testing groove 4 is specially arranged between two sealing rings 3, and the pressure testing groove 4 leaves enough space, so that the contact and the sealing between the outer wall of the socket 1 and the inner wall of the socket 2 in the range of the pressure testing groove 4 can be avoided, and the annular space in the pressure testing groove 4 is ensured to be completely communicated. In this way, when the tightness is checked through the pressure test hole 22, the fluid for pressure test can sufficiently fill the entire annular region, and the tightness check in the entire annular region is completed. The situation that the water leaks when the tightness detection is passed and the water is actually used is completely avoided.

The structure of this embodiment is further preferable in consideration of the fact that even if the sealing performance of the socket joint is good when it is installed, corrosion or loosening is inevitable in the subsequent long-term use, and further, leakage may occur. The drain lines are usually buried underground and it is very cumbersome, labor intensive and may affect the proper operation of the lines for a long time if the leaking drain needs to be replaced. For this purpose, a baffle 13 for blocking the pressure test groove 4 is provided in the pressure test groove 4. The number of the pressure test holes 22 is two, and the two pressure test holes 22 are respectively arranged on two sides of the baffle 13. In addition, it should be noted that the two pressure test holes 22 are located as close to the baffle 13 as possible, so that air can be prevented from remaining near the baffle 13 during the subsequent sealant injection process. The baffle 13 can be integrally formed in the pressure test groove 4 in the machining process, and can also be installed in the pressure test groove 4 in a clamping connection mode and the like. In addition, because the viscosity of the sealant is high, the connection part of the baffle 13 and the edge of the pressure test groove 4 does not need to be sealed.

In the preferred structure, the annular space in the pressure test groove 4 is partitioned by the baffle plate, so that the communication line from one pressure test hole 22 to another pressure test hole 22 in the space is unique. Like this, when a certain socket joint on the drain line appears leaking, pour into sealed glue into to pressure testing groove 4 through one of them pressure testing hole 22, through another pressure testing hole 22 exhaust air, and then can fill totally in the pressure testing groove 4 and seal glue, finally make the socket joint who leaks restore sealing performance. The sealant belongs to the prior art, has a plurality of types, and can be selected by a person skilled in the art according to actual requirements. The socket joint can be maintained through a simple method, the whole drain pipe is prevented from being replaced due to the water leakage problem, the maintenance time is shortened, and the influence of maintenance on the normal operation of the pipeline is reduced.

The socket joint in the prior art does not have the function of quick maintenance for two reasons: firstly, only one pressure test hole is usually arranged in the prior art, so that air in an annular space cannot be discharged, the sealant is difficult to fill completely, and the effect of stopping leakage by using the sealant cannot be realized; secondly, the socket joint in the prior art has no pressure test groove, so that the outer wall of the socket 1 is contacted and sealed with the inner wall of the bell mouth 2 due to extrusion, deformation, foreign matter blockage and the like, and the situation of connectivity interruption in an annular gap as shown in fig. 11 occurs, and the sealant cannot be completely filled; in addition, even if the effect of blocking leakage is temporarily realized through incomplete filling, the drain pipe is buried underground for a long time, the pressure is high, foreign matters such as silt easily enter the annular gap, the communication part and the closed part in the annular gap are easy to change, and a new leakage point appears, so that the effect of blocking leakage is not easy to maintain for a long time through incomplete sealing glue filling.

Example 2

On the basis of embodiment 1, in order to facilitate installation, a planar support plate 6 is arranged on one side of the socket 2, the planar support plate 6 is structured as shown in fig. 8, the viewing angle of fig. 8 is slightly inclined towards the bottom of the planar support plate 6, the top of the planar support plate 6 is provided with an arc surface matched with the outer wall of the socket 2, and the top of the planar support plate 6 is further provided with a notch 61 for matching with the reinforcing ring 21 on the outer wall of the socket 2. The bottom of the plane supporting plate 6 is provided with a plane. After the socket joint is installed, the plane supporting plate 6 is arranged at the lower end of the bellmouth and used for supporting the ground, so that the position of the bellmouth is more solid. In addition, the pressure test hole 22 is arranged at the upper end of the socket 2, so that the operation of pressure test or sealant injection is convenient. The planar support plate 6 is a mesh plate. The grid can hold the foreign matter, therefore the grid plate is convenient for install in the place that silt is more, and installs more smoothly more easily.

The above-mentioned embodiments only express the specific embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for those skilled in the art, without departing from the technical idea of the present application, several changes and modifications can be made, which are all within the protection scope of the present application.

Claims

1. The utility model provides a FRD double containment detects immediately and closes water socket joint connects, includes socket (1) and bellmouth (2), its characterized in that: an annular pressure test groove (4) is formed in the outer wall of the socket (1), two annular sealing ring installation grooves are formed in two sides of the pressure test groove (4), and a sealing ring (3) is installed in each sealing ring installation groove; a pressure test hole (22) is formed in the socket (2), and the position of the pressure test hole (22) corresponds to the pressure test groove (4);

a baffle (13) for separating the pressure testing groove (4) is arranged in the pressure testing groove (4); the number of the pressure test holes (22) is two, and the two pressure test holes (22) are respectively arranged on two sides of the baffle (13);

an annular pressing block (12) is arranged at one end, facing the opening, of the socket (1), an annular inclined surface (23) is arranged at one side, facing the socket piece, of the socket (2), and the pressing block (12) is matched with the inclined surface (23);

socket (1) outer wall parallel arrangement has four annular baffle (11), examination pressure tank (4) and sealing washer mounting groove enclose by socket (1) outer wall and four annular baffle (11).

2. The FRD double-seal immediate-detection closed water spigot-and-socket joint as claimed in claim 1, wherein: the outer wall of the socket (2) is provided with four reinforcing rings (21), and the positions of the reinforcing rings (21) correspond to the positions of the annular partition plates (11) one by one.

3. The FRD double-seal immediate-detection closed water spigot-and-socket joint as claimed in claim 1, wherein: the sealing ring (3) is a special-shaped sealing ring.

4. The FRD double-seal immediate-detection closed water spigot-and-socket joint as claimed in claim 1, wherein: one side of bellmouth (2) is provided with plane backup pad (6), plane backup pad (6) top is provided with the cambered surface with the outer wall complex of bellmouth (2), plane backup pad (6) bottom is provided with the plane.

5. The FRD dual seal immediate test closed water socket joint of claim 4, wherein: the plane supporting plate (6) is a grid plate.