CN110486560B - House water supply pipeline - Google Patents
House water supply pipeline Download PDFInfo
- Publication number
- CN110486560B CN110486560B CN201910760723.4A CN201910760723A CN110486560B CN 110486560 B CN110486560 B CN 110486560B CN 201910760723 A CN201910760723 A CN 201910760723A CN 110486560 B CN110486560 B CN 110486560B
- Authority
- CN
- China
- Prior art keywords
- copper pipe
- pipe
- plastic layer
- copper
- rubber strip
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L43/00—Bends; Siphons
- F16L43/02—Bends; Siphons adapted to make use of special securing means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
- F16L47/02—Welded joints; Adhesive joints
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
- F16L47/06—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end
- F16L47/065—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end with sealing rings arranged between outer surface of pipe and inner surface of sleeve or socket, the sealing rings being placed previously on the male part
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention relates to a pipeline for buildings, in particular to a water supply pipeline for houses, which comprises a straight pipe and a bent pipe, wherein the straight pipe comprises a first copper pipe and a first plastic layer, the bent pipe comprises a second copper pipe and a second plastic layer, the first plastic layer and the second plastic layer are respectively wrapped at the outer sides of the first copper pipe and the second copper pipe, an annular slot is formed in the end part, close to the second copper pipe, of the second plastic layer, the end parts of the first copper pipe and the first plastic layer are inserted into the slot, the end part of the second copper pipe is a conical pipe with gradually contracted outer port diameter, the end part of the first copper pipe is provided with a conical pipe matched with the end part of the second copper pipe, the circumferential surface of the end part of the second copper pipe is provided with a plurality of mounting grooves, and the mounting grooves are; the inner side of the first copper pipe is convexly provided with a limiting rod, the limiting rod corresponds to the mounting groove in position, the inner side of the first copper pipe is provided with a rubber strip, the rubber strip is made of a flexible material, and one end of the rubber strip is fixedly connected with the limiting rod.
Description
Technical Field
The invention relates to a pipeline for a building, in particular to a water supply pipeline for a house.
Background
In the water supply pipeline of a house, the composite copper plastic water supply pipeline is a novel water supply pipe material, scaling and bacteria breeding are not easy to occur in the pipeline in the water supply process, particularly, hot water is conveyed, no peculiar smell exists, and the composite copper plastic water supply pipeline gradually becomes a mainstream material for the water supply pipeline of the house. The connection of the composite copper-plastic water supply pipe at the bent pipe is generally realized by connecting through matched connecting fittings, so that the sealing is realized.
The existing installation structure of the composite copper-plastic water supply pipe can refer to the invention patent with the publication number of CN101158428B, and comprises a straight pipe and a bent pipe, wherein the inner sides of the straight pipe and the bent pipe are both copper pipes, the outer side of each copper pipe is wrapped with a plastic layer, and the outer diameter of the end of the straight pipe is smaller than that of the end of the bent pipe. Slots are formed in the plastic layers at the two ends of the bent pipe, the straight pipe is inserted into the slots after being subjected to hot melting, and the copper pipe of the bent pipe is inserted into the inner side of the copper pipe of the straight pipe, so that the straight pipe and the bent pipe are in butt joint.
The defects of the prior art are that the straight pipe is inserted into the slot in a hot melting state, and the difference between the inner diameter of the copper pipe of the straight pipe and the outer diameter of the copper pipe of the bent pipe is not large, so that the difficulty is high in the butt joint process, and once the butt joint time is too long, the hot melting plastic layer is cooled, so that the hot melting sealing effect is influenced.
Disclosure of Invention
The invention aims to provide a house water supply pipeline, which achieves the effect of reducing the butt joint difficulty of a straight pipe and a bent pipe.
The above object of the present invention is achieved by the following technical solutions:
the utility model provides a house water supply pipe, including straight tube and return bend, the straight tube includes first copper pipe and first plastic layer, the return bend includes second copper pipe and second plastic layer, first plastic layer and second plastic layer wrap up respectively in the outside of first copper pipe and second copper pipe, press close to the tip of the second plastic layer of second copper pipe and seted up annular slot, the tip of first copper pipe and first plastic layer inserts in the slot, the tip of second copper pipe is the tapered tube that outer port diameter shrinks gradually, the tip of first copper pipe have with second copper pipe tip matched with tapered tube.
Through adopting above-mentioned technical scheme, at the in-process of installation straight tube and return bend, because first copper pipe and the mutual grafting complex tip of second copper pipe are the taper pipe, first copper pipe is at the male in-process, and during the tip of first copper pipe and the tip contact of second copper pipe, the clearance between first copper pipe and the second copper pipe is great, consequently can the greatly reduced straight tube and the grafting cooperation degree of difficulty of return bend, promotion installation effectiveness.
The invention is further configured to: the circumferential surface of the end part of the second copper pipe is provided with a plurality of mounting grooves which are uniformly arranged at intervals, and the mounting grooves are provided with openings at the end of the second copper pipe; the inner side of the first copper pipe is convexly provided with a limiting rod, and the limiting rod corresponds to the mounting groove in position.
Through adopting above-mentioned technical scheme, at the first copper pipe of installation and second copper pipe complex in-process, utilize the spacing mating reaction of gag lever post and mounting groove, can promote first copper pipe and the smooth and easy degree of second copper pipe installation complex.
The invention is further configured to: the mounting grooves are spirally distributed on the outer side wall of the second copper pipe.
Through adopting above-mentioned technical scheme, after the mounting groove spiral distributes, the relative position of first copper pipe and second copper pipe after the installation is comparatively stable, even when receiving along axial pulling force, is difficult for breaking away from each other between first copper pipe and the second copper pipe.
The invention is further configured to: the inboard of first copper pipe is provided with the rubber strip, the rubber strip is made for flexible material, the one end and the gag lever post fixed connection of rubber strip.
Through adopting above-mentioned technical scheme, after first copper pipe and second copper pipe are pegged graft the cooperation mutually and are accomplished, the rubber strip can hold in the mounting groove, carries out the shutoff to the cavity in the mounting groove, promotes the leakproofness between first copper pipe and the second copper pipe.
The invention is further configured to: the inboard of first copper pipe is still fixed and is provided with the dead lever, the dead lever is kept away from the one end joint of gag lever post with the rubber strip, and the dead lever is located the middle part that first copper pipe kept away from the gag lever post.
Through adopting above-mentioned technical scheme, the rubber strip can be fixed a position in the setting of dead lever, guarantees the stability of rubber strip in the inboard position of first copper pipe.
The invention is further configured to: the annular seal groove has been seted up in the outside of second copper pipe, and the mounting groove is kept away from to the seal groove, and the packing is filled with the sealing washer in the seal groove.
Through adopting above-mentioned technical scheme, the setting of seal groove and sealing washer can promote the leakproofness between first copper pipe and the second copper pipe.
The second aim of the invention is realized by the following technical scheme:
a method for installing a house water supply pipeline comprises the following steps:
s1, inserting the straight pipe into the slot at the end of the bent pipe, and pushing the tapered pipe of the first copper pipe until the inner side surface is attached to the outer side surface of the tapered pipe of the second copper pipe;
s2, heating the first and second plastic layers at the splice of the straight and bent tubes using external heating, and extruding the second plastic layer during the heating.
Through adopting above-mentioned technical scheme, the cooperation of straight tube and return bend is comparatively convenient, and the installation degree of difficulty is low to adopt the mode of external heating in step S2, can promote the stability that first plastic layer and second plastic layer melt back bonding, thereby promote the leakproofness of straight tube and return bend.
The invention is further configured to: in step S1, the inner side of the first copper pipe is fixedly provided with a limiting rod, the second copper pipe is provided with a spiral mounting groove, the limiting rod is aligned to the mounting groove in the process of mounting the straight pipe and the bent pipe, and the straight pipe or the bent pipe is rotated to enable the limiting rod to be mounted to the final position along the mounting groove.
Through adopting above-mentioned technical scheme, first copper pipe and second copper pipe utilize the mounting groove and the gag lever post of spiral setting to fix a position at the in-process of installation, can promote the stability of first copper pipe and the installation of second copper pipe, when the straight tube received axial pulling force, also can reduce the possibility that first copper pipe and second copper pipe break away from each other.
In summary, the present invention has the following technical effects:
1. the end parts of the copper pipes of the straight pipe and the bent pipe are arranged into the conical pipes which are matched with each other, so that the mounting difficulty of the straight pipe and the bent pipe is greatly reduced;
2. the installation smoothness of the straight pipe and the bent pipe is improved by arranging the installation groove on the second copper pipe and arranging the limiting rod on the first copper pipe in a protruding mode;
3. through setting the mounting groove to the heliciform, reached and promoted the stability after straight tube and return bend grafting cooperation.
Drawings
FIG. 1 is a schematic cross-sectional view illustrating a first embodiment of the present invention;
fig. 2 is a schematic cross-sectional view of an explosive structure highlighting the gag lever post and mounting groove.
In the figure, 1, a straight pipe; 11. a first copper tube; 111. a limiting rod; 112. a rubber strip; 113. fixing the rod; 12. a first plastic layer; 2. bending the pipe; 21. a second copper tube; 211. mounting grooves; 212. a sealing groove; 213. a seal ring; 22. a second plastic layer; 221. and (4) a slot.
Detailed Description
The first embodiment is as follows:
as shown in fig. 1, the present embodiment describes a house water supply pipeline, which includes a straight pipe 1 and an elbow pipe 2, wherein the straight pipe 1 is plugged into two end portions of the elbow pipe 2, i.e. the two straight pipes 1 are communicated through the elbow pipe 2.
As shown in fig. 1, the straight tube 1 includes a first copper tube 11 and a first plastic layer 12, the bent tube 2 includes a second copper tube 21 and a second plastic layer 22, the first plastic layer 12 and the second plastic layer 22 are respectively wrapped on the outer sides of the first copper tube 11 and the second copper tube 21, an annular slot 221 is formed in the end portion of the second plastic layer 22 close to the second copper tube 21, and the end portions of the first copper tube 11 and the first plastic layer 12 are inserted into the slot 221. Before the straight tube 1 is inserted into the insertion groove 221, the end part of the straight tube 1 can be heated, the first plastic layer 12 is ensured to be in a soft state, and then the straight tube 1 is directly inserted into the insertion groove 221, so that the first plastic layer 12 is contacted with the second plastic layer 22 and is gradually sealed after being attached and solidified with the second plastic layer 22. After the straight pipe 1 is inserted into the insertion slot 221, the first plastic layer 12 and the second plastic layer 22 are heated externally, so that the first plastic layer 11 and the second plastic layer 12 are softened and attached to each other, and the sealing effect is achieved.
As shown in fig. 1, the end of the second copper pipe 21 is a tapered pipe with an outer port diameter gradually reduced, and the end of the first copper pipe 11 is provided with a tapered pipe matched with the end of the second copper pipe 21. Like this at the in-process of first copper pipe 11 of installation and second copper pipe 21, when the tip of first copper pipe 11 and the tip contact of second copper pipe 21, the clearance between first copper pipe 11 and the second copper pipe 21 is great, consequently can the greatly reduced straight tube 1 and the grafting cooperation degree of difficulty of return bend 2, promotes the installation effectiveness. In addition, the end of the second copper tube 21 can be disposed to extend beyond the second plastic layer 22, which facilitates the alignment and insertion of the first copper tube 11 and the second copper tube 21.
Because the end parts of the first copper pipe 11 and the second copper pipe 21 are both set to be tapered pipes, in the process of mounting the first copper pipe 11 and the second copper pipe 21, at the stage of starting mounting, the mounting gap between the first copper pipe 11 and the second copper pipe 21 is large, and the shaking is easy to generate. As shown in fig. 2, in order to improve the installation stability of the first copper pipe 11 and the second copper pipe 21, a plurality of installation grooves 211 may be formed on the circumferential surface of the end portion of the second copper pipe 21, the installation grooves 211 are uniformly arranged at intervals, and the installation grooves 211 are open at the end of the second copper pipe 21; the inner side of the first copper tube 11 is convexly provided with a limiting rod 111, and the limiting rod 111 corresponds to the position of the mounting groove 211. At the in-process of first copper pipe 11 of installation and second copper pipe 21, utilize the spacing mating reaction of gag lever post 111 and mounting groove 211, can promote first copper pipe 11 and the installation complex stability of second copper pipe 21, reduce the degree of rocking of straight tube 1 and return bend 2, promote the smooth and easy degree of installation.
As shown in fig. 2, can also distribute the mounting groove 211 on the lateral wall of second copper pipe 21 according to the heliciform, like this, in the in-process of installation straight tube 1, straight tube 1 needs relative return bend 2 to rotate and just can guarantee that gag lever post 111 transfers smoothly along mounting groove 211, after the installation equally need straight tube 1 relative return bend 2 to rotate just can detach second copper pipe 21 from first copper pipe 11, consequently, the installation intensity of straight tube 1 and return bend 2 is higher, it is more stable, even when straight tube 1 receives along axial pulling force, also difficult mutual disengagement between first copper pipe 11 and the second copper pipe 21.
After the installation groove 211 is formed, the sealing performance between the first copper pipe 11 and the second copper pipe 21 is reduced, and in order to improve the sealing performance, as shown in fig. 2, a rubber strip 112 may be disposed on the inner side of the first copper pipe 11, the rubber strip 112 is made of a flexible material, and one end of the rubber strip 112 is fixedly connected to the limiting rod 111. After the first copper pipe 11 and the second copper pipe 21 are inserted and matched with each other, the rubber strip 112 can be accommodated in the mounting groove 211 to block a cavity in the mounting groove 211, so that the sealing performance between the first copper pipe 11 and the second copper pipe 21 is improved.
As shown in fig. 2, the mounting groove 211 is preferably a groove that does not penetrate through the sidewall of the second copper pipe 21, that is, the mounting groove 211 has a groove bottom, so that after the rubber strip 112 is located in the mounting groove 211, the stability of the rubber strip 112 can be ensured, and the rubber strip 112 is prevented from being separated from the mounting groove 211.
As shown in fig. 2, a fixing rod 113 may be further fixedly disposed on the inner side of the first copper pipe 11, the fixing rod 113 and one end of the rubber strip 112 far away from the limiting rod 111 are in clamping connection capable of being separated from each other, and the fixing rod 113 is located in the middle of the first copper pipe 11 far away from the limiting rod 111. The fixing rod 113 is arranged to position the rubber strip 112, so that the rubber strip 112 is in a tensioned and stretched state between the fixing rod 113 and the limiting rod 111, and the stability of the rubber strip 112 at the inner side of the first copper pipe 11 is ensured. As the stopper rod 111 enters the mounting groove 211, the rubber strip 112 also enters the mounting groove 211, and the rubber strip 112 is transformed from a straight state to a spiral state accommodated in the mounting groove 211, at which time the rubber strip 112 is separated from one end of the fixing rod 113.
As shown in fig. 2, in order to further improve the sealing performance between the first copper pipe 11 and the second copper pipe 21, an annular sealing groove 212 may be formed on the outer side of the second copper pipe 21, the sealing groove 212 is far away from the mounting groove 211, a sealing ring 213 is filled in the sealing groove 212, and the sealing groove 212 and the sealing ring 213 are disposed to improve the sealing performance between the first copper pipe 11 and the second copper pipe 21.
The sealing ring 213 and the rubber strip 112 are preferably made of rubber capable of expanding when encountering water, so as to improve the sealing effect, and the specific materials can be referred to in patent publication No. CN 102070896B.
The installation process of this embodiment is:
align the first copper pipe 11 with straight tube 1 and insert second copper pipe 21, gag lever post 111 aligns mounting groove 211, limit rotation straight tube 1 for gag lever post 111 slides down smoothly along spiral helicine mounting groove 211, makes the tip of straight tube 1 insert in the slot 221 of return bend 2, along with gag lever post 111 slides in mounting groove 211, can bring rubber strip 112 into mounting groove 211 in, guarantees that rubber strip 112 can sealing installation groove 211.
Example two:
the embodiment discloses an installation method of a house water supply pipeline, which comprises the following steps:
s1, inserting the straight tube 1 into the slot 221 at the end of the bent tube 2, and pushing the tapered tube of the first copper tube 11 until the inner side surface of the tapered tube of the second copper tube 21 is attached to the outer side surface of the tapered tube.
If set up the mounting groove 211 of screw thread form on second copper pipe 21, the inboard fixed gag lever post 111 that sets up of first copper pipe 11, then along with in straight tube 1 inserts slot 221, need constantly slightly rotate straight tube 1, guarantee that gag lever post 111 can get into in mounting groove 211 smoothly, make gag lever post 111 install to final position along mounting groove 211.
S2, heating the first plastic layer 12 and the second plastic layer 22 at the joint of the straight pipe 1 and the bent pipe 2, wherein external heating is used during the heating process, and the second plastic layer 22 is extruded during the heating process.
Adopt the mode of external heating, can promote the stability that first plastic layer 12 and second plastic layer 22 bonded after melting to promote the leakproofness of straight tube 1 and return bend 2.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (4)
1. The utility model provides a house water supply pipe, including straight tube (1) and return bend (2), straight tube (1) includes first copper pipe (11) and first plastic layer (12), return bend (2) includes second copper pipe (21) and second plastic layer (22), first plastic layer (12) and second plastic layer (22) wrap up respectively in the outside of first copper pipe (11) and second copper pipe (21), press close to the tip of second copper pipe (21) second plastic layer (22) and seted up annular slot (221), the tip of first copper pipe (11) and first plastic layer (12) inserts in slot (221), the tip of second copper pipe (21) is the toper pipe that outer port diameter shrinks gradually, the tip of first copper pipe (11) has the toper pipe with second copper pipe (21) tip matched with, a plurality of mounting grooves (211) have been seted up on the global of the tip of second copper pipe (21), mounting groove (211) evenly spaced, the mounting groove (211) is provided with an opening at the end of the second copper pipe (21); the inner side of the first copper pipe (11) is convexly provided with a limiting rod (111), the limiting rod (111) corresponds to the position of the mounting groove (211), and the copper pipe mounting structure is characterized in that the inner side of the first copper pipe (11) is provided with a rubber strip (112), the rubber strip (112) is made of a flexible material, and one end of the rubber strip (112) is fixedly connected with the limiting rod (111).
2. The house water supply pipeline according to claim 1, characterized in that the mounting grooves (211) are spirally distributed on the outer side wall of the second copper pipe (21).
3. The house water supply pipeline according to claim 1, characterized in that a fixing rod (113) is further fixedly arranged on the inner side of the first copper pipe (11), the fixing rod (113) is clamped with one end of the rubber strip (112) far away from the limiting rod (111), and the fixing rod (113) is located in the middle of the first copper pipe (11) far away from the limiting rod (111).
4. The house water supply pipeline according to claim 3, characterized in that an annular sealing groove (212) is formed in the outer side of the second copper pipe (21), the sealing groove (212) is far away from the mounting groove (211), and a sealing ring (213) is filled in the sealing groove (212).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910760723.4A CN110486560B (en) | 2019-08-16 | 2019-08-16 | House water supply pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910760723.4A CN110486560B (en) | 2019-08-16 | 2019-08-16 | House water supply pipeline |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110486560A CN110486560A (en) | 2019-11-22 |
| CN110486560B true CN110486560B (en) | 2020-11-06 |
Family
ID=68551909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910760723.4A Active CN110486560B (en) | 2019-08-16 | 2019-08-16 | House water supply pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110486560B (en) |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08285158A (en) * | 1995-04-17 | 1996-11-01 | Mitsubishi Plastics Ind Ltd | Connecting structure of corrugated pipe |
| CA2233050A1 (en) * | 1998-03-25 | 1999-09-25 | Chung Cheng Faucet Co., Ltd. | Welding connection tube for a valve or multi-tube connector |
| CN100504136C (en) * | 2007-10-17 | 2009-06-24 | 苏州市阳光川上管道有限公司 | Plastic coated metallic water supply pipe joint structure and plastic coated metallic water supply pipe connecting component |
| CN103899853B (en) * | 2014-03-25 | 2015-12-23 | 浙江金科科技有限公司 | A kind of complex copper moulds feedwater piping linkage structure and link thereof |
| CN106678474B (en) * | 2017-01-24 | 2019-05-14 | 浙江飞龙管业有限公司 | It is a kind of close with the tubing connected convenient for use Push-fit |
| CN207261904U (en) * | 2017-08-31 | 2018-04-20 | 温州市浩特钢业有限公司 | A kind of stainless steel pipes |
| CN207814716U (en) * | 2018-01-10 | 2018-09-04 | 上海未蓝工业技术有限公司 | It is a kind of to detain device for helical corrugation hose assembly |
| CN208397524U (en) * | 2018-01-15 | 2019-01-18 | 河南理工大学 | A kind of attachment device for coal mine gas extraction |
| CN208331488U (en) * | 2018-03-12 | 2019-01-04 | 青岛凯杰轻工机械有限公司 | A kind of pipe fitting reinforcement bindiny mechanism |
| CN208474716U (en) * | 2018-03-26 | 2019-02-05 | 河南金鹏管道有限公司 | A kind of environmentally protective high-impact feedwater piping |
| CN209245495U (en) * | 2018-07-31 | 2019-08-13 | 杭州毅而玛管业有限公司 | A kind of spigot-and-socket HDPE winding reinforcing pipe with rotation preventing function |
| CN109915667B (en) * | 2019-04-15 | 2020-02-07 | 大连长之琳科技发展有限公司 | Internal-rotation rolling type sealing joint, light straight-through pipe joint and application thereof |
-
2019
- 2019-08-16 CN CN201910760723.4A patent/CN110486560B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN110486560A (en) | 2019-11-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4035002A (en) | Pipe coupling | |
| CN110486560B (en) | House water supply pipeline | |
| CN101504096A (en) | Plug-in type pipe movable connector | |
| CN202868131U (en) | Thread compressing sealing water heating pipe fitting connecting structure with liner pipe and casing pipe | |
| CN101016967A (en) | Thin-walled stainless steel tube sealing, sticking and fastening connection method | |
| CN104019308A (en) | Hot water pipe joint | |
| CN109812630B (en) | Screw-type quick pipe fitting connector | |
| US8640642B2 (en) | Apparatus and method for internally lining an elongate member | |
| CN209545110U (en) | A kind of PVC composite cable protection pipe | |
| CN113374953B (en) | 0Cr18Ni10Ti seamless stainless steel tube | |
| CN101016966A (en) | Plastic wound structure wall faucet pipe and manufacture method therefor | |
| CN203718249U (en) | Conduit joint with threaded insert | |
| CN210372482U (en) | Connecting piece for oil gas pipeline installation | |
| CN211083273U (en) | Quick connecting device for pipeline | |
| CN108953816A (en) | PVC-U winds effective bell and spigot joint | |
| US4622197A (en) | Applying thermoplastics sleeve to crush resistant tubing | |
| CN208565887U (en) | A kind of novel bell and spigot frame of drainpipe | |
| US6491066B1 (en) | Resilient bevel for profile wall pipe | |
| KR100854411B1 (en) | Collar pipe onebodytype plastic pipe and the manufacturing method | |
| CN205919047U (en) | Pipeline is fast to be connected | |
| CN114017570B (en) | Connection method of plastic pipeline joint | |
| CN215371408U (en) | Petroleum pipeline pipe hoop | |
| CN212480440U (en) | Connection structure of seamless pipe of concatenation formula titanium | |
| CN211693968U (en) | PVC drain pipe convenient to connect | |
| CN218564707U (en) | Water pipe and external threaded joint connecting structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |