CN206054971U - Spigot-and-socket steel bushing concrete pressure pipe - Google Patents
Spigot-and-socket steel bushing concrete pressure pipe Download PDFInfo
- Publication number
- CN206054971U CN206054971U CN201621113266.8U CN201621113266U CN206054971U CN 206054971 U CN206054971 U CN 206054971U CN 201621113266 U CN201621113266 U CN 201621113266U CN 206054971 U CN206054971 U CN 206054971U
- Authority
- CN
- China
- Prior art keywords
- socket
- pipe
- spigot
- wall
- steel bushing
- 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
Abstract
This utility model provides a kind of spigot-and-socket steel bushing concrete pressure pipe, it is related to pipeline field, spigot-and-socket steel bushing concrete pressure pipe includes pressure tube body, pressure tube body includes inner wall tube and outer wall pipe, inner wall tube is provided with the socket hoop and socket ring of the socket joint connection that can cooperate, adjacent pressure tube body can pass through socket hoop and socket ring socket joint connects, and make installation process convenient and swift；Using double wall pipe, central filler has reinforcement material, can bear higher intrinsic pressure larger with opposing outer load, it is ensured that the service life of pipeline；And many places of various anti-corrosion materials apply and use, pipeline corrosion protection ability is further improved, extend pipeline service life, it is safe and reliable.
Description
Technical field
This utility model is related to pipeline field, in particular to a kind of spigot-and-socket steel bushing concrete pressure pipe.
Background technology
The development of steel pipe (Steel pipe) production technology starts from the manufacturing rise of bicycle, 19th century younger oil
Exploitation, naval vessel, boiler, the manufacture of aircraft during Two World Wars, the manufacture of apparatus of thermo-electric power boiler after World War II changes
Learn drilling and transport of industrial expansion and petroleum gas etc., all effectively promote Steel Tube Industries kind, yield and
Qualitative development.
Steel pipe is applied not only to conveyance fluid and powdery solid, exchanges heat energy, manufacture machine components and container, and it is still a kind of
Economic steel.Steel can not only be saved, simplified construction with steel pipe manufacture water-carriage system, and the face of stopping off can be greatly reduced
Product, investment reduction and maintenance cost.
Steel pipe, is the pipe for being made and being done internal and external anti-corrosive and be fabricated to by single steel matter, for conveying water, oil, gas etc.
Fluid, at home and abroad widely uses.
Steel pipe can bear higher intrinsic pressure, but, it is relatively low that steel pipe bears external load ability, can only increase thickness of steel pipe to change
It is apt to which and bears external load ability.In Practical Project case, increase thickness of steel pipe, cost is high, opposing external load deformation energy
Power is also very weak.Steel pipe is embedded in underground or open-air atmosphere, very high to outer wall requirement for anticorrosion, due to being monolayer steel pipe, once send out
Raw corrosion, affects engineering service life.Prior art steel pipe is usually straight tube structure, steel pipe adjacent tubes during construction and installation
Road connection needs butt welding at the construction field (site) and makes mouth of pipe anticorrosive coat, and difficulty of construction is big, costly, difficult quality guarantee；Connect
Head is rigid joint, and the ability for resisting deformation is weak, is susceptible to rupture failure.Especially large-diameter steel pipe, due to its cost height, supports
Anti- external load ability, interface and anticorrosive quality are difficult to ensure that.
For current duct products kind, product selects single.
In prior art, existing can not be while bears compared with high internal pressure and external load ability, construction and installation are loaded down with trivial details, use the longevity
The life problem that long and anti-corrosion capability does not lack.
Utility model content
The purpose of this utility model is to provide a kind of spigot-and-socket steel bushing concrete pressure pipe, to realize holding simultaneously
By compared with high internal pressure and external load ability, adjacent channel are easy for installation, long service life and anti-corrosion capability are strong purpose.
What this utility model was realized in：
A kind of spigot-and-socket steel bushing concrete pressure pipe, including pressure tube body, the pressure tube body include inner wall tube
With outer wall pipe, located at the periphery of the inner wall tube, the inner wall tube includes body, socket hoop and socket to the outer wall pipe box
Ring, the socket hoop and socket ring are respectively arranged at the two ends of the axial direction of the body, and the socket hoop and socket ring can phases
Mutually coordinate socket joint connection.
Further, the outer surface of the inner surface of the inner wall tube and the outer wall pipe is equipped with anticorrosive coat, the pressure
Socket hoop one end and socket ring one end of tube body is respectively provided with flexible water coating, table in the socket ring outer surface and socket hoop
Face is provided with corrosion-inhibiting coating.
Further, reinforcing member and keeper are provided between the inner wall tube and the outer wall pipe.
Further, reinforcement material is filled between the inner wall tube and outer wall pipe.
Further, the socket hoop includes flat segments and to the close transition of the outer wall pipe, the flat segments with
The inner wall tube is parallel with the outer wall pipe.
Further, the outer surface of the socket ring is provided with least two circumferential grooves, and the adjacent ring of each two is recessed
Only Jiao Tai is provided between groove.
Further, the central shaft of the vertical spigot-and-socket steel bushing concrete pressure pipe of the circumferential groove, it is described extremely
Few two circumferential grooves are parallel to each other.
Further, the only Jiao Tai is provided with installing hole, and the installing hole is through the only Jiao Tai.
Further, O-ring seal is provided with the circumferential groove.
Further, the pressure tube body also includes cathodic protection attachment means, and the cathodic protection attachment means set
It is placed in the end of the outer wall pipe.
Hinge structure, this utility model have the advantages that：A kind of spigot-and-socket steel that this utility model is provided
Sleeve concrete pressure pipe, including pressure tube body, pressure tube body include inner wall tube and outer wall pipe, and inner wall tube is provided with can be mutual
Coordinate the socket hoop and socket ring of socket joint connection, make installation process convenient and swift；And double wall pipe is adopted, can bear higher interior
External pressure.
To enable above-mentioned purpose of the present utility model, feature and advantage to become apparent, preferred embodiment cited below particularly, and
Accompanying drawing appended by coordinating, is described in detail below.
Description of the drawings
It is to make purpose, technical scheme and the advantage of this utility model embodiment clearer, new below in conjunction with this practicality
Accompanying drawing in type embodiment, is clearly and completely described to the technical scheme in this utility model embodiment, it is clear that retouched
The embodiment stated is a part of embodiment of this utility model, rather than the embodiment of whole.Generally described in accompanying drawing herein and
The component of this utility model embodiment for illustrating can be arranged and be designed with a variety of configurations.Therefore, below to attached
The detailed description of the embodiment of the present utility model provided in figure is not intended to limit claimed scope of the present utility model,
But it is merely representative of selected embodiment of the present utility model.Based on the embodiment in this utility model, ordinary skill people
The every other embodiment obtained under the premise of creative work is not made by member, belongs to the model of this utility model protection
Enclose.
Fig. 1 shows a kind of axial sectional view of pressure tube body that this utility model is provided.
Fig. 2 shows a kind of radial cross-section of pressure tube body that this utility model is provided.
Fig. 3 shows a kind of axial cross-sectional schematic of socket hoop that this utility model is provided.
Fig. 4 shows a kind of axial cross-sectional schematic of socket ring that this utility model is provided.
Fig. 5 shows a kind of socket joint junction of spigot-and-socket steel bushing concrete pressure pipe provided by the utility model
Structural representation.
Primary symbols explanation：
100- pressure tube bodies；110- inner wall tubes；111- bodys；113- socket hoops；1131- flat segments；1133- gradual changes
Section；115- socket rings；1151- circumferential grooves；1153- stops Jiao Tai；1155- installing holes；1157- O-ring seals；120- outer wall pipes；
121- cathodic protection attachment means；130- anticorrosive coats；140- flexible water coatings；150- corrosion-inhibiting coatings；160- reinforcing members；170-
Keeper；180- reinforcement materials.
Specific embodiment
Below in conjunction with accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out clearly
Chu, it is fully described by, it is clear that described embodiment is only a part of embodiment of this utility model, rather than the reality of whole
Apply example.The component of this utility model embodiment generally described and illustrated in accompanying drawing herein can be come with a variety of configurations
Arrangement and design.Therefore, the detailed description of embodiment of the present utility model below to providing in the accompanying drawings is not intended to limit
Claimed scope of the present utility model, but it is merely representative of selected embodiment of the present utility model.Based on this utility model
Embodiment, the every other embodiment obtained on the premise of creative work is not made by those skilled in the art, all
Belong to the scope of this utility model protection.
It should be noted that：Similar label and letter represent similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined in individual accompanying drawing, then in subsequent accompanying drawing which further need not be defined and is explained.Meanwhile, it is new in this practicality
In the description of type, term " first ", " second " etc. are only used for distinguishing description, and it is not intended that indicating or implying relatively important
Property.
Fig. 1 shows a kind of axial sectional view of pressure tube body 100 that this utility model embodiment is provided, and Fig. 2 shows
A kind of radial cross-section of pressure tube body provided by the utility model 100, as shown in Figure 1 and Figure 2, pressure tube body are gone out
100 include inner wall tube 110 and outer wall pipe 120, and inner wall tube 110 includes body 111, socket hoop 113 and socket ring 115, outer wall
Pipe 120 is sheathed on the periphery of inner wall tube 110, and socket hoop 113 and socket ring 115 are respectively arranged at 111 edge of body of inner wall tube 110
The two ends of 100 axial direction of pressure tube body.
The pressure tube body 100 that the present embodiment is provided also includes cathodic protection attachment means 121, cathodic protection attachment means
121 located at the two ends along 100 axial direction of pressure tube body of outer wall pipe 120.Cathodic protection attachment means 121 are external for electrically connecting
Cathodic protection system, protects pressure tube body 100 not by electrochemical corrosion, further improves pipeline corrosion protection ability, extend pipeline
Service life, it is safe and reliable.
160 He of reinforcing member is provided between the inner wall tube 110 and outer wall pipe 120 of the pressure tube body 100 that the present embodiment is provided
Keeper 170, and it is filled with reinforcement material 180.
In the preferred embodiment of the present embodiment, reinforcing member 160 is reinforcing bar.Optimally, reinforcing member 160 is from construction concrete steel
Muscle.Because the height of reinforcing bar receive force intensity and stretch-proof bending ability, reinforcing member 160 between inner wall tube 110 and outer wall pipe 120 with
Strengthen the intensity of the external and internal pressure that can bear of pressure tube body 100, pressure tube body 100 is more consolidated firm.
In the preferred embodiment of the present embodiment, keeper 170 is reinforcing bar, in the length of spacing pressure tube body 100
Meanwhile, strengthen the intensity of the external and internal pressure that can bear of 100 end of pressure tube body, pressure tube body 100 is more consolidated
It is firm.
In the preferred embodiment that the present embodiment is provided, reinforcement material 180 selects concrete.Optimally, it is not low from intensity
In the concrete of C40.The firm characteristic of concrete is to strengthen the anti-pressure ability of pressure tube body 100.And in inner wall tube 110
And the reinforcing member 160 and keeper 170 between outer wall pipe 120, coordinate with reinforcement material 180 and greatly reinforced pressure tube body
100 voltage endurance capability.Optimally, reinforcement material 180 selects concrete, reinforcing member 160 to select distributing bar, and both form reinforcing bar
Concrete, to build more stable and firm pressure tube body 100.Therefore, the spigot-and-socket steel bushing coagulation that the present embodiment is provided
Soil pressure solenoid can bear higher intrinsic pressure, can resist external load again and ensure that pipeline is indeformable.
Traditional pipeline configuration mostly is monolayer steel pipe, and the external and internal pressure which can bear is low and holds corrosion-vulnerable, can be serious
Affect the service life of pipeline.The pressure tube body 100 that the present embodiment is provided adopts the double-walled of inner wall tube 110 and outer wall pipe 120
Tubular construction, can the external and internal pressure that can bear of intensified pressure tube body 100 significantly intensity and corrosion resistance.And including
Reinforcing member 160, keeper 170 and reinforcement material 180 between wall pipe 110 and outer wall pipe 120 makes the anti-of pressure tube body 100
External and internal pressure ability is greatly enhanced；The employing of reinforcement material 180 not only strengthens 100 anti-external and internal pressure energy of pressure tube body
Power, has also completely cut off contacting between inner wall tube 110 and the external world, inner wall tube 110 is not corroded by external environment.Therefore, this reality
The spigot-and-socket steel bushing concrete pressure pipe for applying example offer can bear higher intrinsic pressure, can resist external load again and ensure pipeline not
Deformation.
The inner surface of inner wall tube 110 and the outer surface of outer wall pipe 120 of the pressure tube body 100 that the present embodiment is provided is all provided with
There is anticorrosive coat 130, pressure tube body 100 is equipped with flexible water coating 140 in the end face of socket hoop 113 and socket ring 115, insert
115 outer surface of choma and 113 inner surface of socket hoop are provided with corrosion-inhibiting coating 150, the parcel inner wall tube 110 of flexible water coating 140, outer
Wall pipe 120 and inner wall tube 110 and the reinforcement material 180 in the middle of outer wall pipe 120.
In the preferred embodiment that the present embodiment is provided, corrosion-inhibiting coating 150 is wear-resisting, corrosion resistant anti-corrosion material, to enter one
Step improves pipeline corrosion protection ability, extends pipeline service life, safe and reliable, and makes more wear-resisting at socket joint connecting interface stablizing not
It is vulnerable to environmental corrosion.Optimally, corrosion-inhibiting coating 150 is high-end corrosion resistant coating.
In the preferred embodiment that the present embodiment is provided, the anticorrosive coat 130 of 120 outer surface of outer wall pipe is polyurethaness preserving timber
Material, but it is not limited only to polyurethaness anti-corrosion material, or other weatherability corrosion-inhibiting coatings, it is not rotten by environment with protecting tube road
Erosion.The anticorrosive coat 130 of 110 inner surface of inner wall tube is the anti-corrosion material for meeting sanitary standard of drinking water requirement, it is ensured that conveying water quality peace
Complete reliable, tube wall is not corroded, and further extends pipeline service life.
In the preferred embodiment that the present embodiment is provided, flexible water coating is polyurethaness anti-corrosion material, but is not limited only to
Polyurethaness anti-corrosion material, or other have flexible anti-corrosion materials, with protecting tube road end face reinforcement material 180 and
Pressure tube body 100 does not receive environmental corrosion, further improves pipeline corrosion protection ability, extends pipeline service life.Optimally, it is flexible
The thickness of waterproof coating is 1.5-2mm.
Fig. 3 shows a kind of axial cross-sectional schematic of socket hoop 113 that this utility model embodiment is provided, due to holding
The axial sectional view of choma 113 is structure symmetrical above and below, therefore, Fig. 3 illustrate only the structural representation of its top half.As schemed
Shown in 3, the socket hoop 113 that this utility model is provided includes flat segments 1131 and to the close transition 1133 of outer wall pipe 120, puts down
Straight section 1131 is parallel with inner wall tube 110 and outer wall pipe 120.
In this utility model embodiment, the shape of flat segments 1131 and transition 1133, transition 1133 are to outer wall pipe
120 close distances and amplitude, all correspond to the shape of socket ring 115, in order to which socket ring 115 and socket hoop 113 are mutual
Between socket joint connection more it is tight with suit.
Fig. 4 shows a kind of axial cross-sectional schematic of socket ring 115 that this utility model embodiment is provided, due to inserting
The axial sectional view of choma 115 is structure symmetrical above and below, therefore, Fig. 4 illustrate only the structural representation of its top half.As schemed
Shown in 4, the end of the socket ring 115 that this utility model embodiment is provided is provided with only glue platform 1153.Two rings parallel to each other
Outer surface of the groove 1151 located at socket ring 115, central shaft of the circumferential groove 1151 perpendicular to pressure tube body 100, and two
Circumferential groove 1151 is respectively arranged at the both sides of only glue platform 1153, and only glue platform 1153 is additionally provided with installing hole 1155, installing hole 1155
Through only glue platform 1153.
In this utility model embodiment, circumferential groove 1151 is two, but in other embodiments, circumferential groove 1151
Quantity can be not limited only to two, or at least two, per being provided with only glue between two adjacent circumferential grooves 1151
Platform 1153.
Fig. 5 shows a kind of socket joint junction of spigot-and-socket steel bushing concrete pressure pipe provided by the utility model
Structural representation, as shown in figure 5, spigot-and-socket steel bushing concrete pressure pipe provided by the utility model can include multistage pressure
Solenoid body 100, passes through 115 company of being closely fit with of socket hoop 113 and socket ring between every two sections of adjacent pressure tube bodies 100
Connect.The socket ring 115 of one section pressure tube body 100 is inserted in the socket hoop 113 of adjacent another section pressure tube body, ring
O-ring seal 1157 is provided with groove 1151, by 1157 seal nipple of O-ring seal, socket hoop 113 and socket ring can be made
Connection between 115 is even closer.Reduce construction and installation scene boil on the nape opposite the mouth, welding and antiseptical problem, spigot-and-socket steel bushing
The job site of concrete pressure pipe is quick and easy for installation.
After the spigot-and-socket steel bushing concrete pressure pipe that the present embodiment is provided is installed, by stopping the peace arranged on glue platform 1153
Dress hole 1155 can carry out installation bulge test, the installation quality of quick inspection pipe joint, and that further improves pipeline uses peace
Entirely.
In sum, the spigot-and-socket steel bushing concrete pressure pipe that this utility model is provided, including pressure tube body, pressure
Tube body includes inner wall tube and outer wall pipe, and inner wall tube is provided with the socket hoop and socket ring of the socket joint connection that can cooperate, adjacent
Pressure tube body can pass through socket hoop and socket ring socket joint connects, and make installation process convenient and swift；It is using double wall pipe, middle
Filled with reinforcement material, higher intrinsic pressure larger with opposing outer load can be born, it is ensured that the service life of pipeline；And it is various anti-
The many places of rotten material apply to be used, and further improves pipeline corrosion protection ability, extends pipeline service life, safe and reliable.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation are made a distinction with another entity or operation, and are not necessarily required or implied these entities or deposit between operating
In any this actual relation or order.And, term " including ", "comprising" or its any other variant are intended to
Nonexcludability is included, so that a series of process, method, article or equipment including key elements not only will including those
Element, but also including other key elements being not expressly set out, or also include for this process, method, article or equipment
Intrinsic key element.In the absence of more restrictions, the key element for being limited by sentence "including a ...", it is not excluded that
Also there is other identical element in process, method, article or equipment including the key element.
In description of the present utility model, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " sets
Put ", " installation ", should be interpreted broadly " being connected ", " connection ", for example, it may be fixedly connected, or be detachably connected,
Or be integrally connected；Can be mechanically connected, or electrically connect；Can be joined directly together, it is also possible to by intermediary
It is indirectly connected to, can is the connection of two element internals.For the ordinary skill in the art, can be managed with concrete condition
Solve concrete meaning of the above-mentioned term in this utility model.
In description of the present utility model, it should be noted that term " on ", D score, "left", "right", " interior ", " outward " etc.
The orientation or position relationship of instruction is that, based on orientation shown in the drawings or position relationship, or the utility model product is when using
The orientation usually put or position relationship, are for only for ease of description this utility model and simplify description, rather than indicate or dark
Show that the device or element of indication there must be specific orientation, with specific azimuth configuration and operation therefore it is not intended that right
Restriction of the present utility model.
Preferred embodiment of the present utility model is the foregoing is only, this utility model is not limited to, for this
For the technical staff in field, this utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle
Within, any modification, equivalent substitution and improvements made etc. are should be included within protection domain of the present utility model.It should be noted that
Arrive：Similar label and letter represent similar terms in following accompanying drawing, therefore, once determined in a certain Xiang Yi accompanying drawing
Justice, then in subsequent accompanying drawing need not further be defined and be explained to which.
Claims (10)
1. a kind of spigot-and-socket steel bushing concrete pressure pipe, it is characterised in that including pressure tube body, the pressure tube body bag
Include inner wall tube and outer wall pipe, the outer wall pipe box located at the periphery of the inner wall tube, the inner wall tube include body, socket hoop with
And socket ring, the socket hoop and the socket ring be respectively arranged at the two ends of the axial direction of the body, and the socket hoop and
The socket ring can cooperate socket joint connection.
2. spigot-and-socket steel bushing concrete pressure pipe as claimed in claim 1, it is characterised in that the inner surface of the inner wall tube
Anticorrosive coat, described socket hoop one end of the pressure tube body and the socket ring one are equipped with the outer surface of the outer wall pipe
End is respectively provided with flexible water coating, and the socket ring outer surface and the bellmouth ring inner surface are provided with corrosion-inhibiting coating.
3. spigot-and-socket steel bushing concrete pressure pipe as claimed in claim 1, it is characterised in that the inner wall tube is outer with described
Reinforcing member and keeper are provided between wall pipe.
4. spigot-and-socket steel bushing concrete pressure pipe as claimed in claim 3, it is characterised in that the inner wall tube and described outer
Reinforcement material is filled between wall pipe.
5. spigot-and-socket steel bushing concrete pressure pipe as claimed in claim 1, it is characterised in that the socket hoop includes straight
Section and to the close transition of the outer wall pipe, the flat segments are parallel with the inner wall tube and the outer wall pipe.
6. spigot-and-socket steel bushing concrete pressure pipe as claimed in claim 1, it is characterised in that the outer surface of the socket ring
At least two circumferential grooves are provided with, between the adjacent circumferential groove of each two, only Jiao Tai is provided with.
7. spigot-and-socket steel bushing concrete pressure pipe as claimed in claim 6, it is characterised in that the vertical institute of the circumferential groove
The central shaft of spigot-and-socket steel bushing concrete pressure pipe is stated, at least two circumferential groove is parallel to each other.
8. spigot-and-socket steel bushing concrete pressure pipe as claimed in claim 6, it is characterised in that the only Jiao Tai is provided with installation
Hole, the installing hole is through the only Jiao Tai.
9. spigot-and-socket steel bushing concrete pressure pipe as claimed in claim 8, it is characterised in that be provided with the circumferential groove
O-ring seal.
10. the spigot-and-socket steel bushing concrete pressure pipe as described in any one of claim 1-9, it is characterised in that the pressure
Tube body also includes cathodic protection attachment means, and the cathodic protection attachment means are arranged at the end of the outer wall pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621113266.8U CN206054971U (en) | 2016-10-11 | 2016-10-11 | Spigot-and-socket steel bushing concrete pressure pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621113266.8U CN206054971U (en) | 2016-10-11 | 2016-10-11 | Spigot-and-socket steel bushing concrete pressure pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206054971U true CN206054971U (en) | 2017-03-29 |
Family
ID=58363974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621113266.8U Active CN206054971U (en) | 2016-10-11 | 2016-10-11 | Spigot-and-socket steel bushing concrete pressure pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206054971U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108756436A (en) * | 2018-07-18 | 2018-11-06 | 苏州云白环境设备股份有限公司 | Inner cylinder thin wall type free-standing steel chimney |
| CN109323049A (en) * | 2018-11-22 | 2019-02-12 | 中水电第十工程局（郑州）有限公司 | Bushing type aqueduct and its construction method of installation applied to through bridge |
-
2016
- 2016-10-11 CN CN201621113266.8U patent/CN206054971U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108756436A (en) * | 2018-07-18 | 2018-11-06 | 苏州云白环境设备股份有限公司 | Inner cylinder thin wall type free-standing steel chimney |
| CN109323049A (en) * | 2018-11-22 | 2019-02-12 | 中水电第十工程局（郑州）有限公司 | Bushing type aqueduct and its construction method of installation applied to through bridge |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206054971U (en) | Spigot-and-socket steel bushing concrete pressure pipe | |
| CN101619779B (en) | Sealing device for buried pipe connected with protective well | |
| CN106247034A (en) | Spigot-and-socket steel bushing concrete pressure pipe | |
| CN103912740A (en) | Nondestructive welding joint for long-distance pipeline steel pipe with inner coating | |
| CN207906626U (en) | EXPE steel multiple tubes | |
| CN203757199U (en) | Austenitic stainless steel conveying pipeline | |
| CN203223708U (en) | Mining composite steel pipe with macromolecule epoxy coating | |
| CN204493924U (en) | Steel wire winding reinforced plastic pipe material | |
| CN205938223U (en) | Compound pipe is strengthened to reinforced concrete glass steel | |
| CN204647602U (en) | A kind of composite bimetal pipe pipe end linkage structure | |
| CN210564386U (en) | Take anticorrosive sucker rod of full cladding of stainless steel joint | |
| CN210179174U (en) | Anticorrosive structure of buried pipeline junction | |
| CN208295325U (en) | A kind of wear-resisting anti-loose American Standard rectangular steel tube | |
| CN207364474U (en) | Power plant's mother liquor conveyance conduit and power plant desulfurization denitrating system | |
| CN206816972U (en) | A kind of low-pressure fluid conveyance conduit steel pipe | |
| CN204829121U (en) | Acidproof wear -resisting high temperature resistant multiple composite pipe | |
| CN202972253U (en) | Reinforced water drainage pipe connector and connection structure thereof | |
| CN211083134U (en) | Mesh steel belt polyethylene composite pipe | |
| CN210661860U (en) | Trachea adapter | |
| CN212672603U (en) | Socket joint formula steel sleeve concrete pressure tube | |
| CN207648313U (en) | A kind of frp process pipeline novel sealing connection structure | |
| CN217030254U (en) | Corrosion-resistant steel pipe | |
| CN204785125U (en) | Composite pipe way | |
| CN207569410U (en) | A kind of quick coupling | |
| CN219473084U (en) | Corrosion-resistant durable seamless steel pipe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 751600 Hexi, Qingtongxia City, Wuzhong City, Ningxia Hui Autonomous Region Patentee after: Ningxia Qinglong Pipe Group Co.,Ltd. Address before: 751600 Hexi, Qingtongxia City, Wuzhong City, Ningxia Hui Autonomous Region Patentee before: NINGXIA QINGLONG PIPES INDUSTRY Co.,Ltd. |