CN210890486U

CN210890486U - Direct-buried pipeline polyurethane foaming connecting layer

Info

Publication number: CN210890486U
Application number: CN201921142109.3U
Authority: CN
Inventors: 李威峰
Original assignee: Wuhan Dongfang Juren Waterproof Insulation Co ltd
Current assignee: Wuhan Dongfang Juren Waterproof Insulation Co ltd
Priority date: 2019-07-19
Filing date: 2019-07-19
Publication date: 2020-06-30
Anticipated expiration: 2029-07-19

Abstract

The utility model discloses a direct-burried pipeline polyurethane foaming articulamentum, including interior steel pipe, the inside cover of interior steel pipe is equipped with the oversheath, the both ends of interior steel pipe all are equipped with the linking pipe, interior steel pipe with connect through polyurethane foaming layer between the oversheath, the one end of linking pipe extends to in the inside snap ring groove of polyurethane foaming layer, the cover is equipped with on the interior steel pipe and is located the solid fixed ring of polyurethane foaming in situ portion, a plurality of through-hole has been seted up on the oversheath, the outside of oversheath be equipped with the mechanism that shelters from of through-hole looks adaptation. The beneficial effects are that: through the setting of linking pipe for interior steel pipe and linking pipe constitute wholly, and then avoid the high temperature and warp, and then prolonged the life of pipeline, through the mechanism that shelters from that sets up, effectually shelter from the through-hole, and then avoid the external environment to the influence that the polyurethane foaming layer caused, and then improved the thermal insulation performance of internal steel pipe, improved the practicality of pipeline.

Description

Direct-buried pipeline polyurethane foaming connecting layer

Technical Field

The utility model relates to a pipeline field particularly, relates to a direct burial formula pipeline polyurethane foaming articulamentum.

Background

The prefabricated direct-buried pipeline is mainly used for a regional heat supply external network pipeline, the using amount of the prefabricated direct-buried pipeline is larger and larger along with the popularization of China for central heat supply, and the application range is wider and wider. The prefabricated directly buried pipeline has the advantages of good waterproof and anti-corrosion performance, investment saving, construction period shortening, low maintenance cost and the like. The prefabricated directly buried pipeline that uses at present comprises steel pipe, heat preservation and outer tube, and is very high because of the temperature of hot water or steam in the steel pipe in the heat supply process, because the coefficient of expansion of anticorrosive coating, support, steel pipe is different, must lead to hookup location between two pipelines to take place the inflation, and the hookup location that leads to two pipelines keeps warm the effect relatively poor after the temperature is very high, and then influences the practicality of pipeline.

An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

To the problem among the correlation technique, the utility model provides a direct-burried pipeline polyurethane foaming articulamentum to overcome the above-mentioned technical problem that current correlation technique exists.

Therefore, the utility model discloses a specific technical scheme as follows:

the utility model provides a direct-burried pipeline polyurethane foaming articulamentum, includes interior steel pipe, the inside cover of interior steel pipe is equipped with the oversheath, the both ends of interior steel pipe all are equipped with links up the pipe, interior steel pipe with connect through the polyurethane foaming layer between the oversheath, the one end that links up the pipe extends to in the inside snap ring groove of polyurethane foaming layer, the cover is equipped with on the interior steel pipe and is located the solid fixed ring of polyurethane foaming in situ portion, a plurality of through-hole has been seted up on the oversheath, the outside of oversheath be equipped with the mechanism that shelters from of through-hole looks adaptation.

Preferably, the fixing rings are respectively provided with a fastening hole inside, and the outer sheath is connected with the fixing rings through fastening rods matched with the fastening holes.

Preferably, the fastening hole is a threaded hole, and the fastening rod is a threaded rod.

Preferably, the outer sheath is provided with clamping grooves located on two sides of the through hole, and clamping openings are symmetrically formed in the adjacent clamping grooves far away from the inner wall.

Preferably, the shielding mechanism comprises a shielding plate arranged on one side of the outer wall of the outer sheath, the shielding plate is connected with a clamping rod barrel positioned in the clamping groove, and a clamping assembly is arranged in the clamping rod barrel.

Preferably, the clamping assembly comprises first through grooves which are symmetrically arranged in the shielding plate, the first through grooves are adjacent to each other and communicated with the second through grooves, clamping rods are inserted into the first through grooves, one ends of the clamping rods penetrate through openings in the inner wall of the clamping rod cylinder and extend into the bayonets, and the adjacent clamping rods are connected through second springs located in the second through grooves.

Preferably, the clamping rod is of an L-shaped structure, and one side, far away from the bayonet, of the bottom end of the clamping rod is provided with a first spring connected with the inner wall of the clamping rod cylinder.

The utility model has the advantages that: the utility model discloses a through-hole that sets up is convenient for pour into the polyurethane foaming layer into in the outside sheath, and cooperate solid fixed ring's effect, the effectual installation stability who improves oversheath and interior steel pipe, setting through linking pipe, make interior steel pipe and linking pipe constitute wholly, and then avoid the high temperature and warp, and then prolonged the life of pipeline, through the mechanism that shelters from that sets up, effectually shelter from the through-hole, and then avoid the external environment to the influence that the polyurethane foaming layer caused, and then improved the thermal insulation performance of internal steel pipe, the practicality of pipeline has been improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a polyurethane foam connection layer of a direct buried pipeline according to an embodiment of the present invention;

fig. 2 is an enlarged schematic view of the shielding mechanism at a in fig. 1.

In the figure:

1. an inner steel tube; 2. an outer sheath; 3. connecting the pipe; 4. a polyurethane foam layer; 5. a snap ring groove; 6. a fixing ring; 7. a through hole; 8. a fastening hole; 9. a fastening rod; 10. a card slot; 11. a shielding plate; 12. a rod clamping cylinder; 13. a first through groove; 14. a second through groove; 15. a clamping rod; 16. a bayonet; 17. an opening; 18. a first spring; 19. and a second spring.

Detailed Description

For further explanation of the embodiments, the drawings are provided as part of the disclosure and serve primarily to illustrate the embodiments and, together with the description, to explain the principles of operation of the embodiments, and to provide further explanation of the invention and advantages thereof, it will be understood by those skilled in the art that various other embodiments and advantages of the invention are possible, and that elements in the drawings are not to scale and that like reference numerals are generally used to designate like elements.

According to the utility model discloses an embodiment provides a direct burial pipeline polyurethane foaming articulamentum.

The first embodiment is as follows:

as shown in fig. 1-2, according to the utility model discloses direct-burried pipeline polyurethane foaming articulamentum, including interior steel pipe 1, the inside cover of interior steel pipe 1 is equipped with oversheath 2, the both ends of interior steel pipe 1 are all overlapped and are equipped with linking pipe 3, interior steel pipe 1 with connect through polyurethane foaming layer 4 between the oversheath 2, the one end of linking pipe 3 extends to in the inside snap ring groove 5 of polyurethane foaming layer 4, the cover is equipped with on the interior steel pipe 1 and is located the inside solid fixed ring 6 in polyurethane foaming layer 4, a plurality of through-hole 7 has been seted up on the oversheath 2, the outside of oversheath 2 be equipped with the mechanism that shelters from of through-hole 7 looks adaptation.

Example two:

as shown in fig. 1, the fixing rings 6 are provided with fastening holes 8, the outer sheaths 2 and the fixing rings 6 are connected through fastening rods 9 matched with the fastening holes 8, and obviously, the fastening holes 8 and the fastening rods 9 improve the connection tightness between the fixing rings 6 and the outer sheaths 2, and further improve the connection tightness between the inner steel pipe 1 and the outer sheaths 2.

As shown in fig. 1, the fastening hole 8 is a threaded hole, and the fastening rod 9 is a threaded rod, so that the threaded hole and the threaded rod are convenient to detach and mount, and the structure is simple and the practicability is high.

As shown in fig. 1 and 2, the outer sheath 2 is provided with two clamping grooves 10 located at two sides of the through hole 7, and adjacent clamping grooves 10 are symmetrically provided with bayonets 16 far from the inner wall, and obviously, the arrangement of the clamping grooves 10 and the bayonets 16 provides possibility for installation of the shielding mechanism.

As shown in fig. 2, shelter from the mechanism including set up in the shielding plate 11 of oversheath 2 outer wall one side, shielding plate 11 with be located the inside card rod section of thick bamboo 12 of draw-in groove 10 is connected, the inside of a card rod section of thick bamboo 12 is equipped with the chucking subassembly, and it is difficult to see out from above-mentioned design, shelters from setting up effectual realization of mechanism and shelters from through-hole 7, and then can reduce the influence that external environment caused polyurethane foam layer 4, and then prolonged polyurethane foam layer 4's life.

As shown in fig. 2, the clamping assembly includes a first through groove 13 symmetrically disposed inside the shielding plate 11, the first through groove 13 is communicated with a second through groove 14, a clamping rod 15 is inserted into the first through groove 13, one end of the clamping rod 15 penetrates through an opening 17 formed in the inner wall of the clamping rod cylinder 12 and extends into the bayonet 16, and the clamping rods 15 are adjacent to each other and are connected through a second spring 19 located inside the second through groove 14.

As shown in fig. 1, the clamping rod 15 is of an L-shaped structure, one side, away from the bayonet 16, of the bottom end of the clamping rod 15 is provided with a first spring 18 connected with the inner wall of the clamping rod barrel 12, and obviously, the arrangement of the first spring 18 can effectively stop the end portion of the clamping rod 15 to be clamped in the bayonet 16, so that the clamping stability of the clamping rod 15 and the bayonet 16 is improved.

For the convenience of understanding the technical solution of the present invention, the following detailed description is made on the working principle or the operation mode of the present invention in the practical process.

In practical application, the outer sheath 2 is sleeved outside the inner steel pipes 1, the two inner steel pipes 1 are connected through the connecting pipe 3, the fastening rod 9 is used for fixing the outer sheath 2 and the fixing ring 6, the fastening rod 9 extends into the fastening hole 8, the polyurethane foam layer 4 is injected into the through hole 7, the polyurethane foam layer 4 enables the inner steel pipes 1 and the outer sheath 2 to be in close contact with the end portion of the connecting pipe 3, the heat preservation effect on the through hole 7 is achieved, the top ends of the two clamping rods 15 are far away from each other and are pulled, the bottom end of the bayonet 16 is moved to the inside of the clamping rod barrel 12, the spring II 19 is stretched, the spring I18 is compressed, the clamping rod barrel 12 at the bottom end of the shielding plate 11 is extended into the clamping groove 10 by a worker, the clamping rods 15 are loosened, and the bottom ends of the clamping rods 15 penetrate through the openings 17 and extend into the bayonet 16 by the reverse acting force of the spring I18, realize bayonet 16 and card pole 15's joint process, and then make shielding plate 11 to the effect of sheltering from of through-hole 7, and then can reduce the influence of external environment to polyurethane foam layer 4.

To sum up, with the help of the above technical scheme, the utility model discloses a through-hole 7 that sets up is convenient for pour into polyurethane foam layer 4 into in the outside sheath 2 to the solid fixed ring 6's of cooperation effect, the effectual installation stability who improves oversheath 2 and interior steel pipe 1, through linking up the setting of pipe 3, make interior steel pipe 1 and linking up pipe 3 to constitute wholly, and then avoid the high temperature and warp, and then the life of pipeline has been prolonged, through the mechanism that shelters from that sets up, effectually shelter from through-hole 7, and then avoid the external environment to the influence that polyurethane foam layer 4 caused, and then improved the thermal insulation performance of internal steel pipe 1, the practicality of pipeline has been improved.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a direct-burried pipeline polyurethane foaming articulamentum, a serial communication port, includes interior steel pipe (1), the inside cover of interior steel pipe (1) is equipped with oversheath (2), the both ends of interior steel pipe (1) all are equipped with linking pipe (3), interior steel pipe (1) with connect through polyurethane foaming layer (4) between oversheath (2), the one end of linking pipe (3) extends to in polyurethane foaming layer (4) inside snap ring groove (5), the cover is equipped with on interior steel pipe (1) and is located polyurethane foaming layer (4) inside solid fixed ring (6), a plurality of through-hole (7) have been seted up on oversheath (2), the outside of oversheath (2) be equipped with the mechanism that shelters from of through-hole (7) looks adaptation.

2. The polyurethane foam connecting layer for the directly buried pipeline as claimed in claim 1, wherein the fixing rings (6) are provided with fastening holes (8), and the outer sheath (2) and the fixing rings (6) are connected through fastening rods (9) matched with the fastening holes (8).

3. The polyurethane foam connecting layer of a direct buried pipeline as claimed in claim 2, wherein the fastening holes (8) are threaded holes, and the fastening rods (9) are threaded rods.

4. The polyurethane foam connecting layer for the directly-buried pipeline as claimed in claim 1, wherein the outer sheath (2) is provided with clamping grooves (10) located at two sides of the through hole (7), and bayonets (16) are symmetrically arranged on the adjacent clamping grooves (10) far away from the inner wall.

5. The polyurethane foam connecting layer of a directly buried pipeline according to claim 4, wherein the shielding mechanism comprises a shielding plate (11) arranged on one side of the outer wall of the outer sheath (2), the shielding plate (11) is connected with a clamping rod barrel (12) located inside the clamping groove (10), and a clamping assembly is arranged inside the clamping rod barrel (12).

6. The polyurethane foam connecting layer for the directly buried pipeline as claimed in claim 5, wherein the clamping assembly comprises first through grooves (13) symmetrically arranged in the shielding plate (11), the adjacent first through grooves (13) are communicated with second through grooves (14), clamping rods (15) are inserted into the first through grooves (13), one ends of the clamping rods (15) penetrate through openings (17) formed in the inner wall of the clamping rod barrel (12) and extend into the bayonets (16), and the adjacent clamping rods (15) are connected through second springs (19) located in the second through grooves (14).

7. The polyurethane foam connecting layer of a direct buried pipeline as claimed in claim 6, wherein the clamping rod (15) is of an L-shaped structure, and a first spring (18) connected with the inner wall of the clamping rod barrel (12) is arranged on one side of the bottom end of the clamping rod (15) far away from the bayonet (16).