Sealing connecting piece mechanism for local replacement of socket and spigot type corrugated drain pipe

Abstract

The utility model discloses a sealing connecting piece mechanism for local replacement of a socket and spigot type corrugated drain pipe. The sealing connecting piece mechanism solves the problem of effective sealing when a cut-off position of a corrugated pipe is cut out for replacement. A corrugated drainage pipe at a digging position in a trench is cut off and replaced by a new corrugated drainage pipe section with the same length and the same caliber, a sealing ring connecting piece is arranged at the joint of a new corrugated pipe and an old corrugated pipe, the section of the sealing ring connecting piece is I-shaped, a closed annular air cavity is arranged at the position of an I-shaped web of the sealing ring connecting piece, and the sealing ring connecting piece is connected with the sealing ring connecting piece. An annular air cavity is formed in one end of the sealing ring connecting piece, air with pressure is arranged in the annular air cavity, annular protrusions are arranged on the inner sides of an upper flange plate and a lower flange plate on the two sides of the I shape of the sealing ring connecting piece, the upper annular protrusion, the lower annular protrusion and the annular air cavity jointly form an omega-shaped groove body, and one end of the cut-off corrugated drainage pipe is inserted into the omega-shaped groove body at one end of the sealing ring connecting piece. The device is convenient to assemble and install and low in cost.

Description

Technical Field

[0001] The utility model relates to an underground spigot-and-socket type corrugated drainage pipe, in particular to a sealing connector mechanism for partial replacement of an underground spigot-and-socket type corrugated drainage pipe. Background Art

[0002] During the excavation of the trench for the heating pipeline, the existing corrugated drainage pipe in the trench may be broken sometimes. The corrugated drainage pipe is a socket-type corrugated pipe. After the corrugated pipe is broken, if it needs to be restored, the broken corrugated pipe needs to be dug out of the soil as a whole and replaced. Since the whole corrugated pipe is 4-6 meters long, it is necessary to expand the excavation area on the ground when digging out the whole pipe, which is time-consuming and labor-intensive. If only the broken part of the corrugated pipe is cut off for replacement, it can achieve time-saving and efficient results, but how to connect and seal the replaced pipe body with the original pipe body becomes a difficult problem in on-site operations. Summary of the invention

[0003] The utility model provides a sealing connector mechanism for partial replacement of a spigot-and-socket type corrugated drainage pipe in soil, which solves the technical problem of how to effectively seal when the corrugated pipe is cut off for replacement.

[0004] The utility model solves the above technical problems through the following technical solutions:

[0005] A sealing connector mechanism for partial replacement of a socket-type corrugated drainage pipe comprises an original corrugated drainage pipe, a damaged pipe section is arranged on the original corrugated drainage pipe, the damaged pipe section on the original corrugated drainage pipe is cut off to form an original left section of the corrugated drainage pipe and an original right section of the corrugated drainage pipe, a new corrugated pipe section is replaced between the original left section of the corrugated drainage pipe and the original right section of the corrugated drainage pipe, a left sealing ring connector is arranged at the butt joint of the original left section of the corrugated drainage pipe and the new corrugated pipe section, the main body of the left sealing ring connector is a rubber ring body with an "I"-shaped cross section, a closed annular air cavity is arranged in the rubber ring body, the central axis of the annular air cavity coincides with the central axis of the rubber ring body, and the annular air cavity is provided with a sealing ring. It is filled with pressurized air, and the pressure of the pressurized air is twice the atmospheric pressure; on the left outer side facade of the rubber ring body, there are respectively provided an outer ring eaves extending to the left and an inner ring eaves extending to the left, and a left "Ω"-shaped annular embedding groove is formed between the outer ring eaves extending to the left and the inner ring eaves extending to the left; on the right outer side facade of the rubber ring body, there are respectively provided an outer ring eaves extending to the right and an inner ring eaves extending to the right, and a right "Ω"-shaped annular embedding groove is formed between the outer ring eaves extending to the right and the inner ring eaves extending to the right, the butt joint port of the left section of the original corrugated drainage pipe is embedded in the left "Ω"-shaped annular embedding groove, and the butt joint port of the new corrugated pipe section is embedded in the right "Ω"-shaped annular embedding groove.

[0006] A downward protrusion is arranged on the inner side surface of the outer annular eave extending to the left, and an upward protrusion is arranged on the outer side surface of the inner annular eave extending to the left, and the downward protrusion and the upward protrusion are arranged correspondingly.

[0007] The downward protrusion on the outer annular eave extending to the left is embedded in the corrugated groove at the end of the left section of the original corrugated drainage pipe, and the downward protrusion on the outer annular eave extending to the right is embedded in the corrugated groove at the end of the new corrugated pipe section; when the butt joint of the left section of the original corrugated drainage pipe is embedded in the left "Ω"-shaped annular embedding groove, and the butt joint of the new corrugated pipe section is embedded in the right "Ω"-shaped annular embedding groove, the annular air cavity is in a squeezed and deformed state.

[0008] The utility model is convenient to assemble, easy to install and low in cost, and provides a quick remedial measure for accidentally damaging the socket-type corrugated drainage pipe during the excavation of the thermal pipe trench, greatly reducing the cost of repairing the pipeline and saving the repair time. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural schematic diagram of the utility model;

[0010] Figure 2 It is a structural schematic diagram of an existing bellows type corrugated drainage pipe with a broken opening 4;

[0011] Figure 3 It is a schematic structural diagram of the left sealing ring connector 6 of the utility model in a side view direction;

[0012] Figure 4 yes Figure 3 Middle BB section view;

[0013] Figure 5 yes Figure 3 AA section view. DETAILED DESCRIPTION

[0014] The utility model is described in detail below with reference to the accompanying drawings:

[0015] A sealing connector mechanism for partial replacement of a socket-type corrugated drainage pipe comprises an original corrugated drainage pipe, on which a damaged pipe section 3 is arranged, after the damaged pipe section 3 on the original corrugated drainage pipe is cut off, an original corrugated drainage pipe left section 1 and an original corrugated drainage pipe right section 2 are formed, a new corrugated drainage pipe section 5 is replaced between the original corrugated drainage pipe left section 1 and the original corrugated drainage pipe right section 2, a left sealing ring connector 6 is arranged at the butt joint between the original corrugated drainage pipe left section 1 and the new corrugated drainage pipe section 5, the main body of the left sealing ring connector 6 is a rubber ring body 8 with an "I"-shaped cross section, a closed annular air cavity 9 is arranged in the rubber ring body 8, the central axis of the annular air cavity 9 coincides with the central axis of the rubber ring body 8, and the annular air cavity 9 is filled with Compressed air, the pressure of the compressed air is twice the atmospheric pressure; on the left outer side elevation of the rubber ring body 8, there are respectively provided an outer annular eave 10 extending to the left and an inner annular eave 11 extending to the left, and a left "Ω"-shaped annular embedding groove 12 is formed between the outer annular eave 10 extending to the left and the inner annular eave 11 extending to the left, and on the right outer side elevation of the rubber ring body 8, there are respectively provided an outer annular eave 13 extending to the right and an inner annular eave 14 extending to the right, and a right "Ω"-shaped annular embedding groove 15 is formed between the outer annular eave 13 extending to the right and the inner annular eave 14 extending to the right, and the butt joint of the left section 1 of the original corrugated drainage pipe is embedded in the left "Ω"-shaped annular embedding groove 12, and the butt joint of the new corrugated pipe section 5 is embedded in the right "Ω"-shaped annular embedding groove 15.

[0016] A downward protrusion is arranged on the inner side surface of the outer annular eave 10 extending to the left, and an upward protrusion is arranged on the outer side surface of the inner annular eave 11 extending to the left, and the downward protrusion and the upward protrusion are arranged correspondingly.

[0017] The downward protrusion on the outer annular eave 10 extending to the left is embedded in the corrugated groove at the end of the left section 1 of the original corrugated drainage pipe, and the downward protrusion on the outer annular eave 13 extending to the right is embedded in the corrugated groove at the end of the new corrugated pipe section 5; when the butt joint of the left section 1 of the original corrugated drainage pipe is embedded in the left "Ω"-shaped annular embedding groove 12, and the butt joint of the new corrugated pipe section 5 is embedded in the right "Ω"-shaped annular embedding groove 15, the annular air cavity 9 is in a squeezed and deformed state.

[0018] A sealing method for partial replacement of a spigot-and-socket type corrugated drainage pipe in soil, comprising an existing spigot-and-socket type corrugated drainage pipe buried in the soil, each section of the spigot-and-socket type corrugated drainage pipe buried in the soil having a length of about 4-5 meters, one end of each section of the pipe being a large end and the other being a small end, the large end of the pipe of this section being spigot-and-socketed with the small end of an adjacent pipe, and the small end of the pipe of this section being spigot-and-socketed with the large end of another adjacent pipe to form a spigot-and-socket type pipeline, therefore, if a section of the pipe needs to be replaced after being damaged, the soil on the entire pipe needs to be dug out and the entire pipe needs to be replaced, which has the disadvantages of being laborious and time-consuming; when there is a damaged opening 4 that has been dug out on the existing spigot-and-socket type corrugated drainage pipe, the present invention replaces and seals the damaged pipe section through the following steps, without the need to excavate and replace the entire pipe;

[0019] The first step is to cut off the damaged pipe section 3 where the damaged opening 4 is located, that is, only a small damaged section of the whole pipe needs to be cut off, and replaced with a new corrugated pipe section 5 with the same diameter as the damaged pipe section 3. The length of the new corrugated pipe section 5 is 2-4 cm shorter than that of the damaged pipe section 3 to facilitate docking and replacement;

[0020] The second step is to make a left sealing ring connector 6 and a right sealing ring connector 7 with a sealing rubber material. The sealing rubber material is a common material for making rubber sealing rings. The structure of the left sealing ring connector 6 is exactly the same as that of the right sealing ring connector 7. The left sealing ring connector 6 is made by one-time casting using a manufacturing mold, and its technical features are as follows: the main body of the left sealing ring connector 6 is a rubber annular body 8 with an "I"-shaped cross section, and a closed annular air cavity 9 is arranged in the rubber annular body 8. The central axis of the annular air cavity 9 coincides with the central axis of the rubber annular body 8. The annular air cavity 9 is filled with pressurized air, and the pressure of the pressurized air is twice the atmospheric pressure. The rubber annular body 8 is similar to a sealing ring entity. On the left side elevation of the rubber annular body 8, there are respectively arranged An outer annular eave 10 extending to the left and an inner annular eave 11 extending to the left, a left "Ω"-shaped annular embedding groove 12 is formed between the outer annular eave 10 extending to the left and the inner annular eave 11 extending to the left, an outer annular eave 13 extending to the right and an inner annular eave 14 extending to the right are respectively arranged on the right side elevation of the rubber ring body 8, and a right "Ω"-shaped annular embedding groove 15 is formed between the outer annular eave 13 extending to the right and the inner annular eave 14 extending to the right. The rubber ring body 8, the outer annular eave 10 extending to the left, the inner annular eave 11 extending to the left, the outer annular eave 13 extending to the right and the inner annular eave 14 extending to the right are all made of sealing rubber material and are integrated through a mold. The left "Ω"-shaped annular embedding groove 12 and the right "Ω"-shaped annular embedding groove 15 become connecting bayonet joints for connecting two butted bellows;

[0021] Step 3: After the damaged pipe section 3 is cut off, the original corrugated drainage pipe left section 1 and the original corrugated drainage pipe right section 2 are formed. The left sealing ring connector 6 is sleeved on the right end of the original corrugated drainage pipe left section 1, so that the right port of the original corrugated drainage pipe left section 1 is embedded in the left "Ω"-shaped annular embedding groove 12; the right sealing ring connector 7 is sleeved on the left end of the original corrugated drainage pipe right section 2, so that the left port of the original corrugated drainage pipe right section 2 is embedded in the right "Ω"-shaped annular embedding groove of the right sealing ring connector 7; first install the two sealing ring connectors on the butt joint of the existing corrugated pipe, and then carry out the butt joint work of the new corrugated pipe section 5;

[0022] The fourth step is to turn outward the outer annular rim 13 extending to the right on the left sealing ring connector 6, and at the same time, turn outward the outer annular rim extending to the left on the right sealing ring connector 7 to make room for the new bellows section 5 to move into place, and then translate the new bellows section 5 from one side of the existing socket-type corrugated drain pipe to between the left sealing ring connector 6 and the right sealing ring connector 7, so that the inner annular rim 14 extending to the right is embedded in the left port of the new bellows section 5, and the inner annular rim extending to the left of the right sealing ring connector 7 is embedded in the right port of the new bellows section 5. In this process, the two inner annular rims also need to be folded and inserted into the port of the new bellows section 5;

[0023] The fifth step is to reset the outer annular rim 13 that is turned outward and extends to the right, and also reset the outer annular rim that is turned outward and extends to the left on the right sealing ring connector 7, thereby completing the connection work of replacing the damaged pipe section 3 with a new corrugated pipe section 5.

[0024] Step 6: Move the new bellows section 5 in the left-right direction by external force, embed the downward protrusion on the outer annular eave 10 extending to the left into the corrugated groove at the end of the left section 1 of the original bellows drain pipe, and embed the downward protrusion on the outer annular eave 13 extending to the right into the corrugated groove at the end of the new bellows section 5; since a closed annular air cavity 9 is provided in the rubber ring body 8, the annular air cavity 9 is filled with pressurized air, and when the two butted bellows pipe openings enter the "Ω"-shaped annular embedding groove, the annular air cavity 9 is squeezed, and the traction force generated by the squeezing makes the downward protrusion on the outer annular eave 10 extending to the left more tightly combined with the corrugated groove at the end of the left section 1 of the original bellows drain pipe, thereby playing a good sealing role.

Claims

1. A sealing connector mechanism for partial replacement of a socket-type corrugated drainage pipe, comprising an original corrugated drainage pipe, a damaged pipe section (3) being arranged on the original corrugated drainage pipe, the damaged pipe section (3) on the original corrugated drainage pipe being cut off to form an original corrugated drainage pipe left section (1) and an original corrugated drainage pipe right section (2), a new corrugated drainage pipe section (5) being replaced between the original corrugated drainage pipe left section (1) and the original corrugated drainage pipe right section (2), a left sealing ring connector (6) being arranged at the butt joint between the original corrugated drainage pipe left section (1) and the new corrugated drainage pipe section (5), It is characterized in that The main body of the left sealing ring connector (6) is a rubber ring body (8) with an I-shaped cross section. A closed annular air cavity (9) is arranged in the rubber ring body (8). The central axis of the annular air cavity (9) coincides with the central axis of the rubber ring body (8). The annular air cavity (9) is filled with pressurized air. The pressure of the pressurized air is twice the atmospheric pressure. On the left outer side elevation of the rubber ring body (8), an outer annular eave (10) extending to the left and an inner annular eave (11) extending to the left are respectively arranged. A left "Ω"-shaped annular embedding groove (12) is formed between the left section (11) and the right outer side elevation of the rubber ring body (8). An outer annular eave (13) extending to the right and an inner annular eave (14) extending to the right are respectively provided. A right "Ω"-shaped annular embedding groove (15) is formed between the outer annular eave (13) extending to the right and the inner annular eave (14) extending to the right. The butt joint of the left section (1) of the original corrugated drainage pipe is embedded in the left "Ω"-shaped annular embedding groove (12), and the butt joint of the new corrugated pipe section (5) is embedded in the right "Ω"-shaped annular embedding groove (15).

2. A sealing connector mechanism for partial replacement of a socket-and-spigot type corrugated drainage pipe according to claim 1, It is characterized in that A downward protrusion is provided on the inner side surface of the outer annular eave (10) extending to the left, and an upward protrusion is provided on the outer side surface of the inner annular eave (11) extending to the left, and the downward protrusion and the upward protrusion are provided correspondingly.

3. A sealing connector mechanism for partial replacement of a spigot-and-socket type corrugated drainage pipe according to claim 2, It is characterized in that The downward protrusion on the outer annular eave (10) extending to the left is embedded in the corrugated groove at the end of the left section (1) of the original corrugated drainage pipe, and the downward protrusion on the outer annular eave (13) extending to the right is embedded in the corrugated groove at the end of the new corrugated pipe section (5); When the butt joint of the left section (1) of the original corrugated drainage pipe is embedded in the left "Ω"-shaped annular embedding groove (12), and the butt joint of the new corrugated pipe section (5) is embedded in the right "Ω"-shaped annular embedding groove (15), the annular air cavity (9) is in a squeezed and deformed state.

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