Connecting joint applied to new and old underground drainage pipelines made of different materials
By combining connecting pipes, flange fittings, and fastening fittings, the problem of unstable connection caused by the difference in materials between new and old drainage pipes is solved, achieving stable connection and sealing, and meeting the needs of renovation of old residential areas.
Patent Information
- Application Number
- CN202520050392.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-09
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2035-01-09
AI Technical Summary
During the renovation of old residential areas, the old and new drainage pipes may not be securely connected due to differences in materials, which could lead to water leakage.
It adopts a combination structure of connecting pipes, flanges and fasteners, including PE plastic flanges, rubber plates, fastening plates and fastening rings, etc., and achieves stable connection and sealing of new and old pipes through heat fusion connection and sealing components.
It achieves stable connection between new and old drainage pipes of different materials, prevents water leakage, improves the reliability and sealing of the connection, adapts to differences in pipe materials, and meets the needs of renovation of old residential areas.
Smart Images
Figure CN223579219U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to old pipeline adjustment installation technical field, concretely is a kind of connection joint applied to different material new and old underground drainage pipeline. BACKGROUND
[0002] With the vigorous support of policy to old community reconstruction and update, the outdoor pipe network reconstruction project of old community is more and more.
[0003] Due to the reconstruction construction drainage system of old community is different, some only reconstruct outdoor drainage system, at this time, the original old drainage pipeline of single building outlet needs to be connected with newly-built pipeline branch pipe, but the material of two kinds of pipe network is mostly different, does not meet the requirement of direct connection, and the problem of leakage caused by unstable connection can occur. To overcome the above problems, a new type of pipeline connection mode is needed to meet the needs of connecting different material outlet drainage pipeline with newly-built drainage pipe network.
[0004] Therefore, the present application is proposed. UTILITY MODEL CONTENT
[0005] The utility model aims at providing a kind of connection joint applied to different material new and old underground drainage pipeline, to solve the problems presented in the above background.
[0006] To solve the above technical problems, the utility model provides a kind of connection joint applied to different material new and old underground drainage pipeline, comprising: connecting pipeline, flange connecting piece connected at one end of the connecting pipeline and fastening connecting piece connected at the other end of the connecting pipeline;
[0007] The flange connecting piece includes a second flange plate connected to the connecting pipeline, and the second flange plate is connected to a first flange plate provided on the new pipeline through a connecting bolt;
[0008] The fastening connecting piece includes a rubber plate, a fastening plate and a fastening ring successively sleeved on the connecting pipeline from inside to outside, and the fastening connecting piece connects the connecting pipeline with the old pipeline.
[0009] According to an embodiment of the present application, the side where the first flange plate and the second flange plate are attached to each other is provided with an annular mounting groove, and a sealing ring is arranged inside the annular mounting groove.
[0010] The sealing ring is an annular structure made of rubber.
[0011] According to an embodiment of the present application, the fastening ring is integrally formed with a notch, and the end faces on both sides of the notch are provided with connecting parts extending away from the fastening ring.
[0012] Two connection portions are detachably connected by fastening bolts.
[0013] According to an embodiment of the present application, the rubber plate is a cylindrical rubber structure, and the diameter of the rubber plate is equal to the inner diameter of the connecting pipe.
[0014] The fastening plate is a cylindrical stainless steel structure.
[0015] According to an embodiment of the present application, the first flange and the second flange are both PE plastic flanges.
[0016] The first flange is hot-melt connected to the new pipe.
[0017] The second flange is hot-melt connected to the connecting pipe.
[0018] According to an embodiment of the present application, a sealing assembly is arranged on the inner wall of the connecting pipe away from the flange connector.
[0019] The sealing assembly comprises an annular accommodating groove arranged on the inner wall of the connecting pipe, and the inner part of the annular accommodating groove is sequentially provided with an elastic sealing ring and a pressing ring from inside to outside, the elastic sealing ring is adhered to the outer surface of the pressing ring, and the outer walls of the elastic sealing ring and the pressing ring are in close contact with the inner wall of the annular accommodating groove.
[0020] According to an embodiment of the present application, the sealing assembly further comprises a piston cavity arranged on the inner wall of the connecting pipe, the piston cavity is in communication with the annular accommodating groove, a piston plate is slidably installed in the piston cavity, a push rod is fixedly installed on the outer wall of the piston plate, one end of the push rod away from the piston plate extends to the inside of the annular accommodating groove and is fixedly connected with the side wall of the pressing ring, the inside of the piston cavity is filled with a high-molecular gel, a water guide main rope is installed on the outer wall of the connecting pipe, a plurality of water guide sub-ropes are fixedly connected with the outer wall of one end of the water guide main rope, and the other end of the water guide main rope extends to the inside of the piston cavity.
[0021] Compared with the prior art, the present application has the following advantages:
[0022] 1. The new pipe and the connecting pipe are fastened together through the flange connector, the old pipe is inserted into the connecting pipe, and the connecting pipe and the old pipe are fastened through the fastening connector, which has the advantages of simple structure, stable and reliable connection, strong adaptability, etc., solves the problem that two pipes cannot be directly connected due to different materials, and meets the needs of the drainage system reconstruction in the old community reconstruction.
[0023] 2. The utility model discloses, through adopt connecting pipeline, flange connecting piece and fastening connecting piece cooperation, realized the effective connection of original drainage pipeline and newly built drainage pipe network, solved the problem of direct connection because of different material, specification, fastening connecting piece has the inner wall of elastic structure, has certain elasticity and deformation ability, can adapt to the tiny difference of two kinds of pipeline when connecting, improved the stability and reliability of connection, simultaneously played the sealing effect, guaranteed the leakproofness and stability of connecting place, effectively prevented the occurrence of water leakage phenomenon. BRIEF DESCRIPTION OF DRAWINGS
[0024] Figure 1 It is the front view structural schematic drawing of a kind of connecting joint of different material new and old underground drainage pipeline in the utility model;
[0025] Figure 2 It is the section structure schematic drawing of a kind of connecting joint of different material new and old underground drainage pipeline in the utility model;
[0026] Figure 3 It is the structural schematic drawing of flange connecting piece in the utility model;
[0027] Figure 4 It is the structural schematic drawing of fastening connecting piece in the utility model;
[0028] Figure 5 It is the installation and use method schematic drawing of the utility model. Figure 2 The structure enlarged view of middle A;
[0029] Figure 6 It is the installation and use method schematic drawing of the utility model.
[0030] In the drawing: 1, new pipeline;2, old pipeline;3, connecting pipeline;4, flange connecting piece;41, first flange plate;42, second flange plate;43, connecting bolt;44, sealing ring;5, fastening connecting piece;51, rubber plate;52, fastening plate;53, fastening ring;54, connecting portion;55, fastening bolt;6, sealing assembly;61, elastic sealing ring;62, compression ring;63, water guide main rope;64, water guide branch rope;65, piston cavity;66, piston plate;67, push rod;68, high molecular gel. DETAILED DESCRIPTION
[0031] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings of the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.
[0032] Please refer toFigures 1-6 This utility model provides a technical solution: a connection joint for new and old underground drainage pipes of different materials, including a connecting pipe 3, a flange connector 4 connected to one end of the connecting pipe 3, and a fastening connector 5 connected to the other end of the connecting pipe 3 (the end away from the flange connector 4).
[0033] The flange connector 4 includes a second flange 42 that is fixedly connected to the connecting pipe 3. The second flange 42 is connected to a connecting bolt 43, and the second flange 42 is connected to a first flange 41 through the connecting bolt 43.
[0034] The first flange 41 is installed on the new pipeline 1;
[0035] Fastening connector 5 includes a rubber plate 51, a fastening plate 52 and a fastening ring 53 arranged sequentially from the inside to the outside of the connecting pipe 3;
[0036] During installation, you can press... Figure 5 The diagram illustrates the connection between the underground drainage pipe and the newly constructed pipe. The underground drainage pipe is the old pipe 2, and the newly constructed pipe is the new pipe 1. The fastening connector 5 secures the old pipe 2 and the connecting pipe 3 together, serving to connect them and prevent sewage leakage. The connecting pipe 3 is made of PE pipe, with a model and specifications similar to the old pipe 2 and consistent with the new pipe 1. It serves to connect the new pipe 1 and protect the old pipe 2. The flange connector 4 includes two pairs of relatively opposite pipes, both made of PE plastic flanges, which serve to connect the new pipe 1 and the connecting pipe 3 to form an integral structure.
[0037] See Figure 2 and Figure 3 In one specific embodiment of this example, an annular mounting groove is provided on the side where the first flange 41 and the second flange 42 are in contact with each other, and a sealing ring 44 is provided inside the annular mounting groove. The sealing ring 44 is an annular structural component made of rubber.
[0038] See Figure 3 In one specific embodiment of this example, the fastening ring 53 has an integrally formed notch, and a connecting part 54 extends vertically from the end face on both sides of the notch. A fastening bolt 55 is connected between the two connecting parts 54, and the fastening bolt 55 allows for detachable connection.
[0039] See Figure 4 In one specific embodiment of this example, the fastening ring 53 and the connecting part 54 are connected by the fastening bolt 55 to form an annular through hole that fastens the outer wall of the winding tube. The rubber plate 51 and the fastening plate 52 are both disposed inside the annular through hole.
[0040] See Figure 4In one specific embodiment of the present embodiment, the rubber plate 51 is a cylindrical rubber structure with a diameter determined according to the diameter of the connecting pipe 3, and the fastening plate 52 is a cylindrical or arc-shaped structure or plate made of stainless steel.
[0041] Referring to Figure 2 In one specific embodiment of the present embodiment, the first flange plate 41 and the second flange plate 42 are arranged in pairs and are both PE plastic flange plates. The first flange plate 41 and the second flange plate 42 are hot-melt connected to the pipes on both sides (the connecting pipe 3 and the new pipe 1). That is, the first flange plate 41 is hot-melt connected to the new pipe 1, and the second flange plate 42 is hot-melt connected to the connecting pipe 3.
[0042] Referring to Figure 2 and Figure 5 In one specific embodiment of the present embodiment, the inner wall of the end of the connecting pipe 3 away from the flange connector 4 is provided with a sealing assembly 6. The sealing assembly 6 includes an annular accommodating groove formed in the inner wall of the connecting pipe 3. An elastic sealing ring 61 and a pressing ring 62 are arranged in the annular accommodating groove from the inside to the outside. The elastic sealing ring 61 is bonded to the outer surface of the pressing ring 62, and the outer walls of the elastic sealing ring 61 and the pressing ring 62 are in close contact with the inner wall of the annular accommodating groove.
[0043] During installation, the elastic sealing ring 61 and the pressing ring 62 arranged on the inner wall of the connecting pipe 3 can be in close contact with the outer wall of the port of the old pipe 2. The elastic sealing ring 61 and the pressing ring 62 further play a sealing effect, which can ensure that the connecting pipe 3 and the old pipe 2 are in a sealed connection state, thereby avoiding leakage of liquid.
[0044] Referring to Figure 2 and Figure 5 In one specific embodiment of the present embodiment, the sealing assembly 6 further includes a piston cavity 65 formed in the inner wall of the connecting pipe 3. The piston cavity 65 is in communication with the annular accommodating groove. A piston plate 66 is slidably installed in the piston cavity 65. A push rod 67 is fixedly installed on the outer wall of the piston plate 66. One end of the push rod 67 extends into the annular accommodating groove and is fixedly connected to the side wall of the pressing ring 62. The piston cavity 65 is filled with a high-molecular gel 68. A water guide main rope 63 is installed on the outer wall of the connecting pipe 3. A plurality of water guide sub-ropes 64 are fixedly connected to the outer wall of one end of the water guide main rope 63. The other end of the water guide main rope 63 extends into the piston cavity 65.
[0045] First use, when the old pipeline 2 and the connecting pipe 3 inside the flow of water, if the elastic sealing ring 61 and the old pipeline 2 connection gap, a small amount of water along the joint gap of connecting pipe 3 and old pipeline 2 penetration; the penetration of water will be absorbed by the guide water main rope 63 and guide water rope 64, the water absorbed by the guide water main rope 63 can enter the inside of the piston cavity 65 and contact with the high molecular gel 68, the high molecular gel 68 after swelling can push the piston plate 66 and the push rod 67 to the outside of the piston cavity 65, and then push the compression ring 62 to compress the elastic sealing ring 61 on the old pipeline 2 port surface, can tightly fit the outer wall of the old pipeline 2, effectively prevent liquid from the interface between the old pipeline 2 and the connecting pipe 3.
[0046] Working principle:
[0047] Step 1, according to the size of the underground drainage pipe network, calculate and determine the size of each component of the connecting joint:
[0048] Rubber plate 51 adopts 20cm long rubber cylinder ring, diameter refers to the original drainage pipe (old pipeline 2) pipe diameter, fastening plate 52 adopts 20cm long cylinder, diameter refers to the original drainage pipe diameter, connected together through fastening ring 53.
[0049] Connecting pipe 3 adopts 60cm long PE pipe, diameter refers to the original drainage pipe (old pipeline 2) pipe diameter, one end is connected with the second flange plate 42 by hot melting.
[0050] Flange connecting piece 4 adopts two symmetrical PE plastic flange plates, the first flange plate 41 is connected with the new pipeline 1 by hot melting.
[0051] Step 2, according to the above description, the construction personnel excavate the trench of the underground outlet drainage branch pipe (old pipeline 2) and the newly built drainage branch pipe (connecting pipe 3 and new pipeline 1).
[0052] Step 3, fasten the new pipeline 1 and the connecting pipe 3 together through the flange connecting piece 4.
[0053] Step 4, insert the old pipeline 2 into the connecting pipe 3, and fasten the connecting pipe 3 and the old pipeline 2 with the fastening connecting piece 5.
[0054] Step 5, according to the specification, the pipeline is filled with cushion, pipe trench thoracic cavity, and the range of 500mm above the pipeline is backfilled with medium sand.
Claims
1. A connecting joint for connecting new and old underground drainage pipes made of different materials, characterized in that, Include: The connecting pipe (3), the flange connector (4) connected to one end of the connecting pipe (3) and the fastening connector (5) connected to the other end of the connecting pipe (3); The flange connector (4) comprises a second flange plate (42) connected to the connecting pipe (3), and the second flange plate (42) is connected to the first flange plate (41) provided on the new pipe (1) through the connecting bolt (43); The fastening connector (5) comprises a rubber plate (51), a fastening plate (52) and a fastening ring (53) which are sequentially sleeved on the connecting pipe (3) from inside to outside, and the fastening connector (5) connects the connecting pipe (3) with the old pipe (2).
2. The connecting joint for new and old underground drainage pipes of different materials according to claim 1, characterized in that, The first flange plate (41) and the second flange plate (42) are provided with an annular mounting groove on the side of mutual adhesion, and a sealing ring (44) is arranged in the annular mounting groove; The sealing ring (44) is an annular structure made of rubber.
3. The connecting joint of claim 1, wherein the connecting joint is applied to new and old underground drainage pipes made of different materials. The fastening ring (53) is integrally formed with a notch, and the end faces on both sides of the notch are provided with connecting parts (54) extending away from the fastening ring (53); Two connecting parts (54) are detachably connected by a fastening bolt (55).
4. The connecting joint of claim 1, wherein The rubber plate (51) is a cylindrical rubber structure, and the diameter of the rubber plate (51) is equal to the inner diameter of the connecting pipe (3); The fastening plate (52) is a cylindrical structure made of stainless steel.
5. The connecting joint of claim 1, wherein the connecting joint is applied to new and old underground drainage pipes made of different materials. The first flange plate (41) and the second flange plate (42) are both PE plastic flange plates; The first flange plate (41) is hot melt connected with the new pipe (1); The second flange plate (42) is hot melt connected with the connecting pipe (3).
6. The connecting joint of any one of claims 1-5, applied to new and old underground drainage pipes of different materials, characterized in that, The inner wall of the connecting pipe (3) away from the flange connector (4) is provided with a sealing assembly (6); The sealing assembly (6) comprises an annular accommodating groove formed in the inner wall of the connecting pipe (3), and an elastic sealing ring (61) and a pressing ring (62) are sequentially arranged in the annular accommodating groove from inside to outside, the elastic sealing ring (61) is adhered to the outer surface of the pressing ring (62), and the outer walls of the elastic sealing ring (61) and the pressing ring (62) are in close contact with the inner wall of the annular accommodating groove.
7. The connecting joint of claim 6, characterized in that, The sealing assembly (6) further comprises a piston cavity (65) formed in the inner wall of the connecting pipe (3), the piston cavity (65) is in communication with the annular accommodating groove, a piston plate (66) is slidably installed in the piston cavity (65), a push rod (67) is fixedly installed on the outer wall of the piston plate (66), one end of the push rod (67) away from the piston plate (66) extends into the annular accommodating groove and is fixedly connected with the side wall of the pressing ring (62), and the piston cavity (65) is filled with a high molecular gel (68), a water guide main rope (63) is installed on the outer wall of the connecting pipe (3), a plurality of water guide sub-ropes (64) are fixedly connected to the outer wall of one end of the water guide main rope (63), and the other end of the water guide main rope (63) extends into the piston cavity (65).