CN111895222B - Glass fiber reinforced plastic pipeline - Google Patents

Glass fiber reinforced plastic pipeline Download PDF

Info

Publication number
CN111895222B
CN111895222B CN202010637205.6A CN202010637205A CN111895222B CN 111895222 B CN111895222 B CN 111895222B CN 202010637205 A CN202010637205 A CN 202010637205A CN 111895222 B CN111895222 B CN 111895222B
Authority
CN
China
Prior art keywords
fixed
fixing
disc
block
pipeline body
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
Application number
CN202010637205.6A
Other languages
Chinese (zh)
Other versions
CN111895222A (en
Inventor
张飞
殷玲
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daqing Hanwei Changheng High Pressure Glass Pipelines Co ltd
Original Assignee
Daqing Hanwei Changheng High Pressure Glass Pipelines Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Daqing Hanwei Changheng High Pressure Glass Pipelines Co ltd filed Critical Daqing Hanwei Changheng High Pressure Glass Pipelines Co ltd
Priority to CN202010637205.6A priority Critical patent/CN111895222B/en
Publication of CN111895222A publication Critical patent/CN111895222A/en
Application granted granted Critical
Publication of CN111895222B publication Critical patent/CN111895222B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L57/00Protection of pipes or objects of similar shape against external or internal damage or wear
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00Devices or appurtenances for use in, or in connection with, pipes or pipe systems

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pipe Accessories (AREA)

Abstract

The invention relates to the field of pipelines, in particular to a glass fiber reinforced plastic pipeline which comprises a pipeline body, a fixing sleeve, a sealing structure, a limiting rod, a fixing block, a fixing disc, a supporting disc, a limiting block, a tension spring, a rubber block, a fixing groove and a guide rod. According to the invention, the fixing sleeve is moved to the position with lower strength of the pipeline body through sliding the fixing sleeve, the two limiting rods are simultaneously rotated by the wrench, the fixing block is driven to move and extrude the two limiting blocks after the limiting rods move, the two limiting blocks move and separate, the fixing disc and the supporting disc are enabled to slide and separate on the pipeline body, the rubber block is driven to move, the rubber block enters the inside of the fixing groove, and the rubber block simultaneously extrudes the inner side wall of the fixing sleeve and the outer side wall of the pipeline body, so that the sealing property between the fixing sleeve and the pipeline body is increased, the heating air is prevented from leaking due to the crack at the position with lower strength of the pipeline body, the pipeline body is temporarily protected, and the time for rush-repairing the pipeline is increased while the heating air is conveyed by the pipeline body.

Description

Glass fiber reinforced plastic pipeline
Technical Field
The invention relates to the field of pipelines, in particular to a glass fiber reinforced plastic pipeline.
Background
The glass fiber reinforced plastic pipeline is a light, high-strength and corrosion-resistant nonmetal pipeline. The glass fiber with resin matrix weight is wound on a rotating core mold layer by layer according to the technological requirement, and quartz sand is uniformly paved among the fibers at a long distance to serve as a sand inclusion layer.
However, when the conventional glass fiber reinforced plastic pipeline is used in the long-time transportation process of the heater, the surface of the pipeline is easy to bulge in the process of expansion with heat and contraction with cold of the glass fiber reinforced plastic pipeline, so that the strength of the pipeline is reduced, the pipeline is easy to crack and damage, and the transportation of the heater is influenced.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a glass fiber reinforced plastic pipeline.
The technical scheme adopted by the invention for solving the technical problems is as follows: a glass fiber reinforced plastic pipeline comprises a pipeline body, wherein the pipeline body is connected with a fixing sleeve in a sliding manner, guide rods are symmetrically fixed in the fixing sleeve, the fixing sleeve is connected with a sealing structure, the sealing structure comprises a limiting rod, a fixing block, a fixing disc, a supporting disc, limiting blocks, a tension spring, a rubber block and a fixing groove, the fixing disc and the supporting disc are connected in the fixing sleeve in a sliding manner, the fixing disc and the supporting disc are connected with the guide rods in a sliding manner, the fixing disc and the supporting disc are connected with the pipeline body in a sliding manner, the limiting blocks are fixed on the side walls of the fixing disc and the supporting disc, the limiting blocks are in threaded connection with the fixing sleeve, the fixing block in a round platform structure is fixed at the bottom end of the limiting rod, the side walls of the fixing block are abutted against the side walls of the two limiting blocks, the fixed disk with be fixed with between the supporting disk tension spring, the fixed disk with the lateral wall of supporting disk all is fixed with the cross-section and is the trapezium structure the rubber piece, the inside wall symmetry of fixed cover is seted up the cross-section and is the triangle-shaped structure the fixed slot.
Preferably, in order to enable the supporting disk and the fixed disk to be reset after being separated, two tension springs are arranged, two tension springs are symmetrically distributed about the fixed sleeve, four limiting blocks are arranged, and four limiting blocks are symmetrically distributed about the fixed sleeve.
Preferably, in order to make fixed disk and supporting disk separate through rotating two stopper, the gag lever post is equipped with two, two the gag lever post is about fixed cover symmetric distribution, two the gag lever post respectively with wherein two the stopper is contradicted.
Preferably, in order to improve the leakproofness of pipeline body, the block rubber is equipped with four, four the block rubber is about fixed cover symmetric distribution, four the block rubber all with sliding connection between the pipeline body, the block rubber deviates from the cross-section of the lateral wall of supporting disk is the triangle-shaped structure, the block rubber is located one side of fixed slot.
Preferably, for the lateral wall at the pipeline body is fixed to messenger's fixed cover, fixed cover is connected with fixed knot and constructs, fixed knot constructs including bracing piece and support column, the supporting disk with the both sides of fixed disk all are fixed with two sections and are the trapezium structure the bracing piece, the bracing piece with sliding connection between the fixed cover, the inside sliding connection of fixed cover has the section to be the trapezium knot the support column, the support column with the bracing piece is contradicted.
Preferably, for the fixed effect of improvement fixed cover, fixed knot constructs still includes pressure spring and sealed piece, the support column with be fixed with between the inside wall of fixed cover pressure spring, the support column run through in pressure spring's inside, the lateral wall of support column is fixed with sealed piece, the cross-section of the lateral wall of sealed piece is the sawtooth structure, for convenient fixed cover slide to the damaged position on the pipeline body, the lateral wall symmetry of pipeline body is fixed with the dead lever, fixed cover and two sliding connection between the dead lever.
The invention has the beneficial effects that:
(1) the invention provides a glass fiber reinforced plastic pipeline, which is characterized in that two limiting rods are simultaneously rotated by a wrench, so that the limiting rods move towards the direction of a pipeline body to drive a fixed block to move towards the direction of the pipeline body, the two limiting blocks are extruded in the moving process of the fixed block to move and separate the two limiting blocks, a fixed disc and a supporting disc are separated on the pipeline body in a sliding way, a tension spring is extended to generate elasticity to drive rubber blocks on the side walls of the fixed disc and the supporting disc to move, the side wall of one side of each rubber block in a triangular structure enters the inside of a fixed groove, and the rubber blocks simultaneously extrude the inner side wall of the fixed sleeve and the outer side wall of the pipeline body, thereby increasing the sealing performance between the fixed sleeve and the pipeline body, preventing the pipeline body from cracking at the position with lower strength and leaking warm air, protect the pipeline body temporarily, increase the time of salvageing the pipeline when doing benefit to the pipeline body and carrying the heating installation.
(2) The invention provides a glass fiber reinforced plastic pipeline.A fixed disk and a supporting disk are separated and simultaneously drive a supporting rod to slide towards a direction far away from the fixed block, a supporting column is pushed to slide towards the direction of a pipeline body, a pressure spring is contracted to generate elasticity, a sealing block is enabled to extrude the outer side wall of the pipeline body, and the sealing performance of the pipeline is improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the connection of the pipe body, the retention sleeve and the sealing structure shown in FIG. 1;
FIG. 3 is an enlarged view of portion A of FIG. 2;
fig. 4 is a schematic view of a connection structure of the pipe body, the fixing sleeve and the fixing rod shown in fig. 1.
In the figure: 1. the pipeline comprises a pipeline body, 2, a fixing sleeve, 3, a sealing structure, 31, a limiting rod, 32, a fixing block, 33, a fixing disc, 34, a supporting disc, 35, a limiting block, 36, a tension spring, 37, a rubber block, 38, a fixing groove, 4, a fixing rod, 5, a fixing structure, 51, a supporting rod, 52, a supporting column, 53, a pressure spring, 54, a sealing block, 6 and a guide rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, a glass fiber reinforced plastic pipeline includes a pipeline body 1, the pipeline body 1 is slidably connected with a fixing sleeve 2, guide rods 6 are symmetrically fixed in the fixing sleeve 2, the fixing sleeve 2 is connected with a sealing structure 3, the sealing structure 3 includes a limiting rod 31, a fixing block 32, a fixing disc 33, a supporting disc 34, a limiting block 35, a tension spring 36, a rubber block 37 and a fixing groove 38, the fixing disc 33 and the supporting disc 34 are slidably connected in the fixing sleeve 2, the fixing disc 33 and the supporting disc 34 are slidably connected with the guide rods 6, the fixing disc 33 and the supporting disc 34 are slidably connected with the pipeline body 1, the limiting block 35 is fixed on the side walls of the fixing disc 33 and the supporting disc 34, the limiting rod 31 is threadedly connected with the fixing sleeve 2, the bottom mounting of gag lever post 31 has the fixed block 32 that is the round platform structure, the lateral wall and two of fixed block 32 the lateral wall of stopper 35 is contradicted, the fixed disk 33 with be fixed with between the supporting disk 34 tension spring 36, the fixed disk 33 with the lateral wall of supporting disk 34 all is fixed with the cross-section and is the trapezium structure rubber block 37, the cross-section is the triangle-shaped structure has been seted up to the inside wall symmetry of fixed cover 2 fixed slot 38.
As a technical optimization scheme of the present invention, there are two tension springs 36, two tension springs 36 are symmetrically distributed with respect to the fixing sleeve 2, and four limit blocks 35 are provided, four limit blocks 35 are symmetrically distributed with respect to the fixing sleeve 2, so that the support plate 34 and the fixing plate 33 can be reset after being separated.
As a technical optimization scheme of the present invention, two limiting rods 31 are provided, two limiting rods 31 are symmetrically distributed about the fixed sleeve 2, the two limiting rods 31 respectively abut against two limiting blocks 35, and in order to separate the fixed disk 33 from the supporting disk 34 by rotating the two limiting blocks 35.
As a technical optimization scheme of the invention, four rubber blocks 37 are provided, four rubber blocks 37 are symmetrically distributed about the fixing sleeve 2, the four rubber blocks 37 are all connected with the pipeline body 1 in a sliding manner, the rubber block 37 has a triangular cross section facing away from the side wall of the support plate 34, the rubber block 37 is located on one side of the fixing groove 38, and in order to improve the sealing performance of the pipeline body 1, when in use, the rubber blocks 37 on the side walls of the fixed disc 33 and the supporting disc 34 are driven to move, so that the side wall of one side of the rubber block 37 in a triangular structure enters the inside of the fixed groove 38, the rubber blocks 37 simultaneously extrude the inner side wall of the fixed sleeve 2 and the outer side wall of the pipeline body 1, thereby increase the leakproofness between fixed cover 2 and the pipeline body 1, prevent that the lower position of intensity of pipeline body 1 from appearing the crack and revealing the heating installation, protect pipeline body 1 temporarily.
As a technical optimization scheme of the present invention, the fixing sleeve 2 is connected with a fixing structure 5, the fixing structure 5 includes a supporting rod 51 and a supporting column 52, two sides of the supporting disk 34 and the fixed disk 33 are both fixed with the two supporting rods 51 having a trapezoidal cross section, the supporting rod 51 is slidably connected with the fixing sleeve 2, the supporting column 52 having a trapezoidal cross section is slidably connected inside the fixing sleeve 2, and the supporting column 52 is abutted against the supporting rod 51, so as to fix the fixing sleeve 2 on the outer side wall of the pipeline body 1.
As a technical optimization scheme of the present invention, the fixing structure 5 further includes a pressure spring 53 and a sealing block 54, the pressure spring 53 is fixed between the supporting column 52 and the inner side wall of the fixing sleeve 2, the supporting column 52 penetrates through the pressure spring 53, the sealing block 54 is fixed on the side wall of the supporting column 52, the cross section of the side wall of the sealing block 54 is in a sawtooth structure, the fixing rods 4 are symmetrically fixed on the outer side wall of the pipeline body 1, and the fixing sleeve 2 is slidably connected with the two fixing rods 4, so as to improve the fixing effect of the fixing sleeve 2, and at the same time, the fixing sleeve 2 is convenient to slide on the pipeline body 1 to a damaged position.
When the invention is used, the fixing sleeve 2 is supported by the two fixing rods 4, the strength of the pipeline body 1 is enhanced by the fixing sleeve 2, the pipeline body 1 is beneficial to carrying out heating transmission, when the pipeline body 1 is transmitted for a long time and the heating expansion and contraction strength is reduced and cracks are easy to appear, the fixing sleeve 2 is slid to the position with lower strength of the pipeline body 1, the two limiting rods 31 are rotated by a spanner simultaneously, the limiting rods 31 are moved towards the pipeline body 1 to drive the fixing block 32 to move towards the pipeline body 1, the two limiting blocks 35 are extruded during the movement of the fixing block 32 to move and separate the two limiting blocks 35, the fixing disc 33 and the supporting disc 34 are slid and separated on the pipeline body 1, the tension spring 36 is extended to generate elasticity to drive the rubber blocks 37 on the side walls of the fixing disc 33 and the supporting disc 34 to move, so that the side wall of the rubber block 37 in a triangular structure enters the inside of the fixing groove 38, make the inside wall of fixed cover 2 of rubber block 37 extrusion simultaneously and pipeline body 1's lateral wall, thereby increase the leakproofness between fixed cover 2 and the pipeline body 1, prevent that the crack from appearing in pipeline body 1's intensity lower position and reveal the heating installation, protect pipeline body 1 temporarily, increase the time of salvageing the pipeline when doing benefit to pipeline body 1 and carrying the heating installation, drive bracing piece 51 and slide to the direction of keeping away from fixed block 32 in the fixed disk 33 and the separation of supporting disk 34, promote support column 52 and slide to pipeline body 1's direction, make compression spring 53 shrink and produce elasticity, make the lateral wall of sealed block 54 extrusion pipeline body 1, thereby make the better position of fixing the lower of the intensity at pipeline body 1 of fixed cover 2, improve pipeline body 1's intensity and leakproofness.
The foregoing shows and describes the general principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (5)

1. The glass fiber reinforced plastic pipeline comprises a pipeline body (1) and is characterized in that: the pipeline body (1) is slidably connected with a fixed sleeve (2), the internal symmetry of the fixed sleeve (2) is fixed with a guide rod (6), the fixed sleeve (2) is connected with a sealing structure (3), the sealing structure (3) comprises a limiting rod (31), a fixed block (32), a fixed disc (33), a supporting disc (34), a limiting block (35), a tension spring (36), a rubber block (37) and a fixed groove (38), the internal sliding connection of the fixed sleeve (2) is connected with the fixed disc (33) and the supporting disc (34), the fixed disc (33) and the supporting disc (34) are both in sliding connection with the guide rod (6), the fixed disc (33) and the supporting disc (34) are both in sliding connection with the pipeline body (1), the fixed disc (33) and the side wall of the supporting disc (34) are both fixed with the limiting block (35), the fixing sleeve (2) is in threaded connection with the limiting rod (31), the bottom end of the limiting rod (31) is fixedly provided with the fixing block (32) in a circular truncated cone structure, the side wall of the fixing block (32) is abutted against the side walls of the two limiting blocks (35), the tension spring (36) is fixed between the fixing disc (33) and the supporting disc (34), the rubber blocks (37) with trapezoidal sections are fixed on the side walls of the fixing disc (33) and the supporting disc (34), and the fixing grooves (38) with triangular sections are symmetrically formed in the inner side wall of the fixing sleeve (2);
rubber block (37) are equipped with four, four rubber block (37) about fixed cover (2) symmetric distribution, four rubber block (37) all with sliding connection between pipeline body (1), rubber block (37) deviate from the cross-section of the lateral wall of supporting disk (34) is the triangle-shaped structure, rubber block (37) are located one side of fixed slot (38).
2. The FRP pipe as claimed in claim 1, wherein: the tension springs (36) are two, the two tension springs (36) are symmetrically distributed about the fixed sleeve (2), the limiting blocks (35) are four, and the four limiting blocks (35) are symmetrically distributed about the fixed sleeve (2).
3. A glass reinforced plastic pipe according to claim 2, wherein: the limiting rods (31) are arranged in two numbers, the two limiting rods (31) are symmetrically distributed about the fixed sleeve (2), and the two limiting rods (31) are respectively abutted against the two limiting blocks (35).
4. The FRP pipe as claimed in claim 1, wherein: fixed cover (2) are connected with fixed knot structure (5), fixed knot structure (5) include bracing piece (51) and support column (52), supporting disk (34) with the both sides of fixed disk (33) all are fixed with two sections and are the trapezium structure bracing piece (51), bracing piece (51) with sliding connection between fixed cover (2), the inside sliding connection of fixed cover (2) has the cross-section to be trapezoidal knot support column (52), support column (52) with bracing piece (51) are contradicted.
5. The FRP pipe as claimed in claim 4, wherein: the fixing structure (5) further comprises a pressure spring (53) and a sealing block (54), the pressure spring (53) is fixed between the supporting column (52) and the inner side wall of the fixing sleeve (2), the supporting column (52) penetrates through the pressure spring (53), the sealing block (54) is fixed on the side wall of the supporting column (52), and the cross section of the side wall of the sealing block (54) is of a sawtooth structure; the outer side wall of the pipeline body (1) is symmetrically fixed with fixing rods (4), and the fixing sleeve (2) is connected with the two fixing rods (4) in a sliding mode.
CN202010637205.6A 2020-07-04 2020-07-04 Glass fiber reinforced plastic pipeline Active CN111895222B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010637205.6A CN111895222B (en) 2020-07-04 2020-07-04 Glass fiber reinforced plastic pipeline

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010637205.6A CN111895222B (en) 2020-07-04 2020-07-04 Glass fiber reinforced plastic pipeline

Publications (2)

Publication Number Publication Date
CN111895222A CN111895222A (en) 2020-11-06
CN111895222B true CN111895222B (en) 2022-08-02

Family

ID=73191536

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010637205.6A Active CN111895222B (en) 2020-07-04 2020-07-04 Glass fiber reinforced plastic pipeline

Country Status (1)

Country Link
CN (1) CN111895222B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112483575A (en) * 2020-11-26 2021-03-12 金波汽车配件有限公司 Automobile shock absorber with counterweight stabilizing structure and using method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104832746A (en) * 2015-05-27 2015-08-12 唐山三友化工股份有限公司 Flange type large-caliber PE pipeline under-pressure restoration structure and restoration method thereof
CN105351673A (en) * 2015-12-08 2016-02-24 朗格斯特哈尔滨环保节能产品制造有限公司 Polyurethane thermal insulation pipe straight pipe plate type field joint device and field joint thermal insulation method
CN105605365A (en) * 2016-04-01 2016-05-25 西南石油大学 Pipeline leakage point sealing device
CN106704759A (en) * 2015-07-13 2017-05-24 吉慧萍 Internal-pressure self-regulated sealed three-dimensional compensator with online alarm device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050016450A1 (en) * 2003-06-13 2005-01-27 Underground Solutions Technologies Group, Inc. System and arrangement for conduit reparation

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104832746A (en) * 2015-05-27 2015-08-12 唐山三友化工股份有限公司 Flange type large-caliber PE pipeline under-pressure restoration structure and restoration method thereof
CN106704759A (en) * 2015-07-13 2017-05-24 吉慧萍 Internal-pressure self-regulated sealed three-dimensional compensator with online alarm device
CN105351673A (en) * 2015-12-08 2016-02-24 朗格斯特哈尔滨环保节能产品制造有限公司 Polyurethane thermal insulation pipe straight pipe plate type field joint device and field joint thermal insulation method
CN105605365A (en) * 2016-04-01 2016-05-25 西南石油大学 Pipeline leakage point sealing device

Also Published As

Publication number Publication date
CN111895222A (en) 2020-11-06

Similar Documents

Publication Publication Date Title
CN111895222B (en) Glass fiber reinforced plastic pipeline
CN102052524A (en) Prestressed concrete glass reinforced plastic composite pipe and preparation method thereof
CN108004869A (en) A kind of basalt fiber tendons Continuous Reinforcement Cement Concrete Pavement design method
CN104802301A (en) Mould and method for preparing ultra-high performance concrete pipeline
CN203519900U (en) Air-blowing optical cable
KR20200112239A (en) Double insulated pipe
CN104482319B (en) Heat insulation plastic pipe
CN201621382U (en) Prestressed concrete and glass fiber reinforced plastic composite jack pipe
CN204347323U (en) Central beam tube type communication optical cable
CN202140711U (en) Fast seal joint
CN109027446A (en) Thermoplastic continuous fibers presoak kernmantle hot melt winding bellows and its manufacturing equipment
CN208670305U (en) A kind of high intensity antifreezing water pipe
AU2019456680B2 (en) Textile-reinforced concrete-steel pipe-FRP composite pipe and manufacturing method therefor
CN204328240U (en) A kind of reinforced insulating plastic pipe tubular construction
CN210566742U (en) Novel PPR polyurethane insulating tube
CN203396992U (en) Nonmetallic antifreezing extrusion-prevention drop cable
CN201954126U (en) Glass fiber reinforced plastic pipeline with pipe wall hollow reinforcing structure
CN220566760U (en) Seamless double-high-cavity reinforced drain pipe
CN202901564U (en) Corrosion-resistant concrete composite pipeline
CN216215613U (en) CPVC power cable protection pipe of protection of preventing frostbite in winter
CN114582572B (en) Composite insulator
CN208672865U (en) A kind of high measuring body HDPE silicone pipes
CN215334917U (en) Composite glass fibre reinforced plastic pipe
CN213712141U (en) Glass fiber reinforced plastic pipeline not easy to damage
CN202577761U (en) Compound large-section concrete filled steel tube column

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
TA01 Transfer of patent application right
TA01 Transfer of patent application right

Effective date of registration: 20220708

Address after: 163000 office building south of Jianshe Road and west of Xinfa street, high tech Zone, Daqing City, Heilongjiang Province

Applicant after: DAQING HANWEI CHANGHENG HIGH PRESSURE GLASS PIPELINES Co.,Ltd.

Address before: 21 000 Hohai University, 1 Xikang Road, Nanjing, Jiangsu Province

Applicant before: Zhang Fei

GR01 Patent grant
GR01 Patent grant