CN214248572U - Plastic winding structure wall pipe with male and female heads - Google Patents
Plastic winding structure wall pipe with male and female heads Download PDFInfo
- Publication number
- CN214248572U CN214248572U CN202022778233.8U CN202022778233U CN214248572U CN 214248572 U CN214248572 U CN 214248572U CN 202022778233 U CN202022778233 U CN 202022778233U CN 214248572 U CN214248572 U CN 214248572U
- Authority
- CN
- China
- Prior art keywords
- male
- female
- head
- connecting part
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The utility model relates to a take plastics winding arrangement wall tubular product of public female head, tubular product include a plurality of festival pipes that connect gradually, and the festival pipe includes the straight tube and locates the public head of connection at straight tube both ends respectively and connect female head, and the straight tube, connect public head and connect the inside of female head and be equipped with the runner that is linked together along length direction, and the straight tube includes inner tube, protective layer and winding layer, connects public head and connects female head buckle and connect, connects public head and connect and be equipped with expandable sealing strip between the female head. Compared with the prior art, the utility model has the technical advantages of quick construction, low construction cost, good corrosion resistance, simple and easy use, etc.
Description
Technical Field
The utility model belongs to the technical field of the pipeline is restoreed, concretely relates to take plastics winding arrangement wall tubular product of public female head.
Background
In recent years, with the rapid development of social economy in China, the urbanization progress is greatly accelerated, and the urban construction is different day by day. Along with the rapid development of cities, the enlargement of urban areas and the increase of population, the demand of people on municipal road drainage and sewage treatment systems is particularly urgent, underground pipelines of a plurality of cities are in overload operation, the existing drainage pipelines have the problems of rain and sewage mixed connection, low design reproduction period, old facilities and the like, the generation of urban diseases such as waterlogging, black and odorous water bodies is accelerated, the working efficiency of the rain and sewage drainage treatment system can be greatly improved by the perfect urban drainage pipe network and the excellent drainage pipeline engineering, the effective operation of the urban drainage system is ensured, the normal operation of urban infrastructures and matched functions is maintained, and the production and living level of urban residents is favorably improved.
At present, in old urban areas of some cities, the phenomena of leakage, damage and even fracture of an underground drainage system of the city are caused by the reasons of longer service life of the drainage pipeline system, maintenance loss of a maintenance pipeline, corrosion of water and soil media and the like, and by the objective factors of lower design life of an original pipeline, lower grade of a pipe, poor durability of a pipeline interface and the like for years; in some newly-built urban areas, due to the fact that the material quality, the construction quality and the management level are slowly improved, and due to the influences of factors such as weak foundation of part of engineering pipelines, serious overload of pavements, unreasonable urban development time sequence and the like, leakage, damage and fracture phenomena occur to part of newly-built urban pipe networks. Therefore, the urban underground damaged drainage pipeline becomes a considerable potential safety hazard, the effective repair of the damaged pipeline and the reinforcement and protection of the pipeline with the potential safety hazard become important civil engineering, the urban drainage system is improved by newly building an urban underground comprehensive pipe gallery and a large-caliber underground drainage tunnel, and the urban drainage system is expected to become one of the schemes for solving the increasingly serious inland inundation problem of the city.
In the process of improving and lifting urban infrastructure, drainage pipelines need to pass through dense population areas or large buildings, structures, branch rivers and the like. If the traditional pipe burying construction for excavation is adopted, traffic jam, green land and garden damage can be caused, and sometimes, the excavation construction is not allowed due to the existence of river channels, water nets, railways, roads, rail transit, airports and the like. On the other hand, most drainage pipe networks are penetrated by a multi-hole cluster pipe, and the design, the guiding control and the measurement of the penetrating track have many specific requirements in the technology compared with other pipelines. These drawbacks impose new requirements on the construction technology of drainage pipelines. The adoption of the trenchless construction technology can solve the problems existing in the construction and management of the drainage pipe network, and the trenchless construction technology becomes one of the important marks for measuring the scientific and technological content of the national underground pipeline construction.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a take plastics winding arrangement wall tubular product of public female head, tubular product have technical advantage such as quick construction, construction cost are low, corrosion resistance is good, simple easy-to-use.
The purpose of the utility model is realized through the following technical scheme:
the utility model provides a take plastics winding arrangement wall tubular product of public female head, includes a plurality of nodal pipes that connect gradually, the nodal pipe includes the straight tube and locates the public head of connection and the female head of connection at straight tube both ends respectively, the straight tube, connect public head and connect the inside of female head and be equipped with the runner that is linked together along length direction, the straight tube includes inner tube, protective layer and welded layer, connect public head and connect female first buckle connection, connect public head and connect and be equipped with expandable sealing strip between the female head. The male connecting head is a plug, the female connecting head is a socket, and the male connecting head is inserted in the female connecting head. The expandable sealing strip can be expanded when meeting water, so that the male connector and the female connector are connected tightly.
The straight tube is formed by winding the rectangular square tubes (namely the inner tubes) with the same structure and the protective layers in the circumferential direction, and the adjacent rectangular square tubes are welded by hot melt adhesive to form welding layers and then connected to form a continuous I-shaped steel structure.
The straight pipe, the connecting male head and the connecting female head are integrally formed.
The inflatable sealing strip adopts a rubber ring.
The connecting male head sequentially comprises a male head first connecting part, a male head second connecting part, a male head third connecting part and a male head fourth connecting part which are integrally formed, the male first connecting part is sleeved outside the straight pipe, the male second connecting part, the male third connecting part and the male fourth connecting part are all arranged around the flow channel, the second male connector part is contacted with the end part of the straight pipe, the second male connector part and the third male connector part are arranged in a ladder shape, the male head third connecting part and the male head fourth connecting part are arranged in a step shape, the outer side wall of the male head third connecting part is gradually far away from the axis of the joint pipe along the direction from the male head second connecting part to the male head fourth connecting part, the expandable sealing strip is arranged outside the fourth connecting part of the male head along the circumferential direction and is connected with the third connecting part of the male head, the outer side wall of the expandable sealing strip is gradually close to the axis of the joint pipe along the direction from the third male connecting part to the fourth male connecting part.
The outer diameter of the joint of the male-head third connecting part and the expandable sealing strip is consistent with the outer diameter of the joint of the expandable sealing strip and the male-head third connecting part, so that the expandable sealing strip can be in contact sealing with the female-head third connecting part.
The inner diameters of the male first connecting part, the male first third connecting part and the male first fourth connecting part are kept unchanged along the length direction, the thickness of the male first second connecting part is kept unchanged along the length direction, and the thickness of the male first fourth connecting part is kept unchanged along the length direction.
The gradient of public first third connecting portion lateral wall is greater than the gradient of expandable sealing strip lateral wall, the axial length of expandable sealing strip is not less than the axial length of public first fourth connecting portion for when adjacent section pipe splices, connect public first easier entering into and connect female, likewise, expandable sealing strip makes it more difficult for connecting public first following and connects female and extract, avoids the unexpected separation of section pipe because of external force that the concatenation is good.
The connecting female head sequentially comprises a female head first connecting part, a female head second connecting part, a female head third connecting part and a female head fourth connecting part which are integrally formed, the female head first connecting part is sleeved outside the straight pipe, the female head second connecting part, the female head third connecting part and the female head fourth connecting part are arranged around the flow channel, the female head second connecting part is contacted with the end part of the straight pipe, the female head second connecting part and the female head third connecting part are arranged in a step shape, the female head third connecting part and the female head fourth connecting part are arranged in a bending shape, the inner side wall of the female head third connecting part is gradually far away from the axis of the joint pipe along the direction from the female head second connecting part to the female head fourth connecting part, the inner side wall of the female head third connecting part is contacted with the outer side wall of the expandable sealing strip, and the inner side wall of the female head fourth connecting part is gradually close to the axis of the joint pipe along the direction from the female head third connecting part to the female head fourth connecting part, the inner side wall of the female fourth connecting part is in contact with the outer side wall of the male third connecting part.
The outer diameters of the first female connecting portion, the second female connecting portion, the third female connecting portion and the fourth female connecting portion are kept unchanged along the length direction, and the thickness of the second female connecting portion is kept unchanged along the length direction.
A gap is arranged between the male head fourth connecting part and the female head second connecting part, the gap can be used for providing a space for the expansion of the expandable rubber strip, a gap is arranged between the male head second connecting part and the female head fourth connecting part, and the gap can provide a space for force application when adjacent pipe joints are separated.
The external diameter of the first male connecting part is consistent with that of the second male connecting part, and the external diameter of the first male connecting part is consistent with that of the first female connecting part.
The inner pipe, the connecting male head and the connecting female head are all made of high-density polyethylene (HDPE).
A preparation method of the plastic winding structure wall pipe with the male and female heads comprises the following steps:
(a) extruding and preparing a rectangular square tube with a protective layer by using a double-layer coextrusion process;
(b) sending the rectangular square pipe with the protective layer into a winding device for spiral winding welding, and preparing a straight pipe through cooling, shaping and fixed-length cutting;
(c) and hoisting the prepared straight pipe to a pipe injection molding platform, simultaneously extruding and connecting a male head and a female head at two ends of the straight pipe, and finishing injection molding burrs to obtain the plastic winding structure wall pipe with the male head and the female head.
The use method of the plastic winding structure wall pipe with the male and female heads is based on the following specific steps: the method comprises the steps of firstly installing fastening steel belts at two ends and the middle part of a section pipe, installing one-way solid guide wheels at the positions, with included angles of 20-30 degrees, of the top end and the bottom end of each fastening steel belt and a perpendicular bisector, then hoisting a plurality of section pipes into an inspection well in sequence in parallel by using hoisting equipment according to the distance between the inspection wells, then pushing the section pipes into pipelines needing to be repaired in the inspection well in sequence, connecting adjacent section pipes through a connecting male head and a connecting female head to form a plastic winding structure wall pipe with the male head and the female head, repeating the above operations, and forming a whole body with the distance equivalent to that of the inspection well.
Compared with the prior art, the repair of the pipe by taking the plastic winding structure wall pipe with the male and female heads as the lining pipe has the following advantages and characteristics:
1. the connection position of the male connection head and the female connection head of the pipe is sealed by a rubber ring which can expand when encountering water, so that excellent leakage-proof performance after the pipe is repaired is ensured.
2. The repaired composite pipeline has excellent integral performance, greatly enhanced pipeline strength, capacity of bearing high running pressure and the load of outer soil.
3. Has the comprehensive characteristics of corrosion resistance, wear resistance, heat preservation, no scaling and long service life.
4. The repair process does not need welding, and direct socket joint connection can be realized, so that the installation time is greatly shortened, the repair construction period is shortened, the repair construction cost is reduced, and the pipeline repair efficiency is improved.
5. Materials and equipment used in construction are few, dredging and cleaning processes in the pipeline to be repaired do not need to be considered, installation difficulty is reduced, and construction cost is reduced.
Drawings
FIG. 1 is a schematic view of the overall structure of a plastic winding structure wall pipe with male and female heads;
FIG. 2 is a perspective schematic view of adjacent joints;
FIG. 3 is an enlarged view taken at A in FIG. 2;
FIG. 4 is a partial schematic view of the connection of adjacent tube segments;
FIG. 5 is a schematic diagram of a process for preparing the tube segments;
FIG. 6 is a schematic view of a tube segment with a fastening steel band and a one-way solid guide wheel installed;
FIG. 7 is a schematic cross-sectional view of a pipe joint after entering a pipeline to be repaired;
fig. 8 is a schematic view of the use of the plastic wound structural wall pipe.
In the figure: 1-straight pipe; 101-an inner tube; 102-a protective layer; 103-a solder layer; 2-connecting a male head; 201-male first connection; 202-a male second connection portion; 203-male third connecting part; 204-male fourth connecting portion; 3-connecting the female head; 301-female first connection; 302-a female second connection; 303-female third connection; 304-female fourth connection; 4-a flow channel; 5-expandable sealing strip; 6-pipe joints; 7-an extruder; 8-the pipeline to be repaired; 9-inspection well; 10-fastening a steel belt; 11-one-way solid guide wheel.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Examples
As shown in fig. 1 and 2 (taking two sections of pipes as an example), a plastic winding structure wall pipe with a male joint and a female joint comprises a plurality of sections of pipes 6 which are connected in sequence, each section of pipe 6 comprises a straight pipe 1, and a connecting male joint 2 and a connecting female joint 3 which are respectively arranged at two ends of the straight pipe 1, the insides of the straight pipe 1, the connecting male joint 2 and the connecting female joint 3 are provided with a flow passage 4 (as shown in fig. 2) which is communicated along the length direction, the straight pipe 1 comprises an inner pipe 101, a protective layer 102 and a welding layer 103, the straight pipe 1 is formed by winding rectangular square pipes (i.e. the inner pipe 101) with the protective layer 102 along the circumferential direction, adjacent rectangular square pipes are welded by hot melt adhesive to form the welding layer 103 and then connected to form a continuous i-steel structure (as shown in fig. 3 and 4), the connecting male joint 2 and the connecting female joint 3 are connected in a buckling manner, an expandable sealing strip 5 is arranged between the connecting male joint 2 and the connecting female joint 3, wherein, the inner pipe 101, the connecting male head 2 and the connecting female head 3 are all made of high-density polyethylene materials.
As shown in fig. 3 and 4, the connection male head 2 includes a male head first connection portion 201, a male head second connection portion 202, a male head third connection portion 203 and a male head fourth connection portion 204, which are integrally formed, the male head first connection portion 201 is sleeved outside the straight pipe 1, the front end of the male head first connection portion 201 is arranged in an inclined shape, the rear thickness is kept unchanged, the male head second connection portion 202, the male head third connection portion 203 and the male head fourth connection portion 204 are all arranged around the flow passage 4, the male head second connection portion 202 is in contact with the end portion of the straight pipe 1, the male head second connection portion 202 and the male head third connection portion 203 are arranged in a step shape (i.e. the thickness of the male head third connection portion 203 is smaller than that of the male head second connection portion 202), the male head third connection portion 203 and the male head fourth connection portion 204 are arranged in a step shape, the outer side wall of the male head third connection portion 203 is gradually away from the axis of the joint pipe 6 along the direction from the male head second connection portion 202 to the male head fourth connection portion 204, the expandable sealing strip 5 is arranged outside the male-head fourth connecting part 204 along the circumferential direction and is connected with the male-head third connecting part 203, the outer side wall of the expandable sealing strip 5 is gradually close to the axis of the joint pipe 6 along the direction from the male-head third connecting part 203 to the male-head fourth connecting part 204, the outer diameter of the joint of the male-head third connecting part 203 and the expandable sealing strip 5 is consistent with the outer diameter of the joint of the expandable sealing strip 5 and the male-head third connecting part 203, the inner diameters of the male-head second connecting part 202, the male-head third connecting part 203 and the male-head fourth connecting part 204 are kept unchanged along the length direction, the thickness of the male-head second connecting part 202 is kept unchanged along the length direction, the thickness of the male-head fourth connecting part 204 is kept unchanged along the length direction, the axial length of the expandable sealing strip 5 is not less than the axial length of the male-head fourth connecting part 204, the axial length of the male-head third connecting part 203 is less than the axial length of the male-head fourth connecting part 204, the inclination of the outer side wall of the male third connecting portion 203 is greater than the inclination of the outer side wall of the inflatable sealing strip 5.
As shown in fig. 3 and 4, the connecting female connector 3 sequentially includes a female first connecting portion 301, a female second connecting portion 302, a female third connecting portion 303 and a female fourth connecting portion 304, which are integrally formed, the female first connecting portion 301 is sleeved outside the straight pipe 1, the front end of the female first connecting portion 301 is arranged in an inclined shape, the rear thickness of the female first connecting portion is kept unchanged, the female second connecting portion 302, the female third connecting portion 303 and the female fourth connecting portion 304 are all arranged around the flow passage 4, the female second connecting portion 302 is in contact with the end of the straight pipe 1, the female second connecting portion 302 and the female third connecting portion 303 are arranged in a step shape (i.e. the thickness of the female third connecting portion 303 is smaller than that of the female second connecting portion 302), the female third connecting portion 303 and the female fourth connecting portion 304 are arranged in a bending manner, the inner side wall of the female third connecting portion 303 gradually gets away from the axis of the joint pipe 6 along the direction from the female second connecting portion 302 to the female fourth connecting portion 304, the inner side wall of the female third connecting part 303 is contacted with the outer side wall of the expandable sealing strip 5, the inner side wall of the female fourth connecting part 304 is gradually close to the axis of the joint pipe 6 along the direction from the female third connecting part 303 to the female fourth connecting part 304, the inner side wall of the female fourth connecting part 304 is contacted with the outer side wall of the male third connecting part 203, the female first connecting part 301 and the female second connecting part 302, the outer diameters of the female third connecting portion 303 and the female fourth connecting portion 304 are kept unchanged along the length direction, the thickness of the female second connecting portion 302 is kept unchanged along the length direction, a gap is arranged between the male fourth connecting portion 204 and the female second connecting portion 302, a gap is arranged between the male second connecting portion 202 and the female fourth connecting portion 304, the outer diameter of the male first connecting portion 201 is consistent with that of the male second connecting portion 202, and the outer diameter of the male first connecting portion 201 is consistent with that of the female first connecting portion 301.
As shown in fig. 5 (the arrow indicates the direction of the upper pipe), a method for preparing the plastic winding structural wall pipe with the male and female connectors as described above specifically includes the following steps:
(a) extruding to prepare a rectangular square pipe (namely an inner pipe 101) with a protective layer 102 by using a double-layer co-extrusion process;
(b) sending the rectangular square pipe with the protective layer 102 into a winding device for spiral winding welding to form a welding layer 103, and preparing a straight pipe 1 through cooling, shaping and fixed-length cutting;
(c) the manufactured straight pipe 1 is lifted to a pipe injection molding platform, an extruder 7 is adopted to simultaneously extrude at two ends of the straight pipe 1 to connect a male head 2 and a female head 3, and plastic winding structure wall pipes with the male heads and the female heads are obtained after trimming injection molding burrs.
A method for using the plastic winding structure wall pipe with the male and female connectors as described above, as shown in fig. 6, 7 and 8, specifically includes: firstly, fastening steel belts 10 are installed at two ends and the middle part of each pipe joint 6, one-way solid guide wheels 11 are installed at positions, with included angles of 20-30 degrees, between the top end and the bottom end of each fastening steel belt 10 and a perpendicular bisector, of the top end and the bottom end of each fastening steel belt 10, then the plurality of pipe joints 6 are hung in the inspection well 9 in parallel in sequence by using hoisting equipment and matching with the fastening steel belts 10 and the one-way solid guide wheels 11 according to the distance between the inspection wells 9, then the pipe joints are sequentially pushed into pipelines 8 needing to be repaired in the inspection well 9, then adjacent pipe joints 6 are connected through a connecting male head 2 and a connecting female head 3 to form a plastic winding structure wall pipe with a male head and a female head, and the adjacent inspection wells are communicated.
The embodiments described above are intended to facilitate the understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention according to the disclosure of the present invention.
Claims (10)
1. The utility model provides a take plastics winding arrangement wall tubular product of public female head, a serial communication port, tubular product includes a plurality of festival pipes (6) that connect gradually, festival pipe (6) include straight tube (1) and locate the public head (2) of connection and the female head (3) of straight tube (1) both ends respectively, straight tube (1), the inside of connecting public head (2) and connecting female head (3) are equipped with runner (4) that are linked together along length direction, straight tube (1) include inner tube (101), protective layer (102) and welded layer (103), connect public head (2) and connect female head (3) buckle and connect, it is equipped with expandable sealing strip (5) to connect between public head (2) and the female head (3) of connection.
2. The plastic winding structure wall pipe with the male and female heads as claimed in claim 1, wherein the male connection head (2) comprises a male first connection part (201), a male second connection part (202), a male third connection part (203) and a male fourth connection part (204) which are integrally formed in sequence, the male first connection part (201) is sleeved outside the straight pipe (1), the male second connection part (202), the male third connection part (203) and the male fourth connection part (204) are all arranged around the flow channel (4), the male second connection part (202) is in contact with the end of the straight pipe (1), the male second connection part (202) and the male third connection part (203) are arranged in a ladder shape, the male third connection part (203) and the male fourth connection part (204) are arranged in a ladder shape, and the outer side wall of the male third connection part (203) is arranged along the male second connection part (202) to the male fourth connection part (204) To the axis of keeping away from festival pipe (6) gradually, but inflatable sealing strip (5) are located outer and be connected with public first third connecting portion (203) of public first fourth connecting portion (204) along circumference, the axis that the lateral wall of inflatable sealing strip (5) is close to festival pipe (6) gradually along public first third connecting portion (203) to public first fourth connecting portion (204) direction.
3. The plastic wound structural wall pipe with the male and female ends as claimed in claim 2, wherein the outer diameter of the junction of the third connecting portion (203) of the male end and the expandable sealing strip (5) is the same as the outer diameter of the junction of the expandable sealing strip (5) and the third connecting portion (203) of the male end.
4. The plastic wound structural wall pipe with the male and female ends as claimed in claim 2, wherein the inner diameters of the male second connecting portion (202), the male third connecting portion (203) and the male fourth connecting portion (204) are kept constant along the length direction, the thickness of the male second connecting portion (202) is kept constant along the length direction, and the thickness of the male fourth connecting portion (204) is kept constant along the length direction.
5. The plastic enwound structural wall pipe with the male and female ends as claimed in claim 2, wherein the inclination of the outer side wall of the third connecting part (203) of the male end is greater than that of the outer side wall of the expandable sealing strip (5), and the axial length of the expandable sealing strip (5) is not less than that of the fourth connecting part (204) of the male end.
6. The plastic winding structure wall pipe with the male and female heads as claimed in claim 2, wherein the connecting female head (3) comprises a female head first connecting part (301), a female head second connecting part (302), a female head third connecting part (303) and a female head fourth connecting part (304) which are integrally formed in sequence, the female head first connecting part (301) is sleeved outside the straight pipe (1), the female head second connecting part (302), the female head third connecting part (303) and the female head fourth connecting part (304) are all arranged around the flow channel (4), the ends of the female head second connecting part (302) and the straight pipe (1) are in contact, the female head second connecting part (302) and the female head third connecting part (303) are arranged in a ladder shape, the female head third connecting part (303) and the female head fourth connecting part (304) are arranged in a bending manner, and the inner side wall of the female head third connecting part (303) is arranged along the direction from the female head second connecting part (302) to the female head fourth connecting part (304) Keep away from the axis of festival pipe (6) gradually, the inside wall of female first third connecting portion (303) and the lateral wall of expandable sealing strip (5) contact, the inside wall of female first fourth connecting portion (304) is close to the axis of festival pipe (6) gradually along female first third connecting portion (303) to the direction of female first fourth connecting portion (304), the inside wall of female first fourth connecting portion (304) and the lateral wall of public first third connecting portion (203) contact.
7. The plastic wound structural wall pipe with the male and female connectors according to claim 6, wherein the outer diameters of the female first connecting part (301), the female second connecting part (302), the female third connecting part (303) and the female fourth connecting part (304) are kept constant along the length direction, and the thickness of the female second connecting part (302) is kept constant along the length direction.
8. The plastic wound structural wall pipe with the male and female ends as claimed in claim 6, wherein a gap is provided between the male fourth connecting portion (204) and the female second connecting portion (302), and a gap is provided between the male second connecting portion (202) and the female fourth connecting portion (304).
9. The plastic wound structural wall pipe with the male and female connectors as claimed in claim 6, wherein the outer diameter of the male first connecting part (201) is consistent with the outer diameter of the male second connecting part (202), and the outer diameter of the male first connecting part (201) is consistent with the outer diameter of the female first connecting part (301).
10. The plastic winding structure wall pipe with the male and female heads as claimed in claim 1, wherein the inner pipe (101), the connecting male head (2) and the connecting female head (3) are all made of high density polyethylene material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022778233.8U CN214248572U (en) | 2020-11-26 | 2020-11-26 | Plastic winding structure wall pipe with male and female heads |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022778233.8U CN214248572U (en) | 2020-11-26 | 2020-11-26 | Plastic winding structure wall pipe with male and female heads |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214248572U true CN214248572U (en) | 2021-09-21 |
Family
ID=77734398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022778233.8U Active CN214248572U (en) | 2020-11-26 | 2020-11-26 | Plastic winding structure wall pipe with male and female heads |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214248572U (en) |
-
2020
- 2020-11-26 CN CN202022778233.8U patent/CN214248572U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108591646A (en) | A kind of U-shaped double-walled Spigot-and-socket pipe joint and its installation method | |
| CN103437417A (en) | Part repair structure for steel lining of drainage pipeline | |
| CN214248572U (en) | Plastic winding structure wall pipe with male and female heads | |
| CN108590752B (en) | Drainage repair system after lining of underdrain type tunnel and construction method thereof | |
| CN214116904U (en) | Rainwater and sewage drainage pipeline groove burying structure | |
| CN213393975U (en) | Reinforced concrete rabbet pipe capable of preventing interface from leaking water | |
| CN109681230A (en) | A kind of double-layer shield tunnel upper and lower level garage's service channel and its setting method | |
| CN209977493U (en) | Improved socket joint | |
| CN209229222U (en) | A kind of novel self-locking stainless steel inner lining tube for pipeline rehabilitation | |
| CN203628077U (en) | Bell and spigot joint and bell and spigot pipe fitting connecting device | |
| CN211232016U (en) | Socket-embedded self-fixing steel-plastic composite full-swinging dragging pipe | |
| CN203950935U (en) | Jacking pipe joints ground structure | |
| CN101451637A (en) | Steel plastic composite structure wall tube | |
| CN201354895Y (en) | Plastics double-wall wounded corrugated pipe | |
| CN210013303U (en) | Connecting structure for new and old sewage pipelines | |
| CN2600510Y (en) | Cement compound drain pipe with plastic lining | |
| CN203498985U (en) | Local repair structure for steel lining of exhaust pipeline | |
| CN211819413U (en) | Block-type prefabricated pipe joint for pipe-jacking tunnel | |
| CN220415355U (en) | Rectangular jacking pipe suitable for station wiring area | |
| CN214743962U (en) | Shallow pressure socket pipe connection structure | |
| CN218378318U (en) | Pipeline convenient to maintenance | |
| CN201326837Y (en) | Pipe with steel-plastic composite structural wall | |
| CN201129585Y (en) | Bidirectional socket pipe parts | |
| CN210637629U (en) | Plastic sewer pipe structure with antiskid effect | |
| CN216383079U (en) | Internal socket steel die for pipeline repair |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |