CN219062689U - HDPE double-wall corrugated pipe - Google Patents

HDPE double-wall corrugated pipe Download PDF

Info

Publication number
CN219062689U
CN219062689U CN202223593226.6U CN202223593226U CN219062689U CN 219062689 U CN219062689 U CN 219062689U CN 202223593226 U CN202223593226 U CN 202223593226U CN 219062689 U CN219062689 U CN 219062689U
Authority
CN
China
Prior art keywords
corrugated
pipe
clamping
inner tube
wall
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
CN202223593226.6U
Other languages
Chinese (zh)
Inventor
李永成
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.)
Hubei Tongjun Pipe Technology Co ltd
Original Assignee
Foshan Shengchang Pipe Industry Technology 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 Foshan Shengchang Pipe Industry Technology Co ltd filed Critical Foshan Shengchang Pipe Industry Technology Co ltd
Priority to CN202223593226.6U priority Critical patent/CN219062689U/en
Application granted granted Critical
Publication of CN219062689U publication Critical patent/CN219062689U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/20Controlling water pollution; Waste water treatment

Landscapes

  • Laying Of Electric Cables Or Lines Outside (AREA)

Abstract

The utility model relates to the field of pipelines, in particular to an HDPE double-wall corrugated pipe. The corrugated pipe comprises a corrugated inner pipe, a corrugated outer pipe and a connecting assembly; adjacent corrugated inner pipes are connected through a connecting component. The connecting assembly comprises a connecting inner pipe and a connecting outer sleeve; two ends of the connecting inner pipe extend into the corrugated inner pipe at the corresponding side respectively; the connecting outer sleeve is arranged on the periphery of the connecting inner tube, and annular mounting grooves are formed in the front side and the rear side of the connecting outer sleeve along the periphery of the connecting inner tube; the two groups of mounting grooves are arranged in a mirror image mode, and clamping pieces are arranged between the two groups of mounting grooves; the head of the corrugated inner tube extends into the mounting groove at the corresponding side and is fixed by the clamping piece. The connecting inner pipe extends into the corrugated inner pipe. The corrugated inner pipe is clamped into the mounting groove, and the clamping piece is fixed to the corrugated inner pipe. The HDPE double-wall corrugated pipe is simple in connection mode, convenient to detach and replace the parts, and convenient and efficient to maintain.

Description

HDPE double-wall corrugated pipe
Technical Field
The utility model relates to the field of pipelines, in particular to an HDPE double-wall corrugated pipe.
Background
HDPE double-wall corrugated pipe, PE corrugated pipe for short, was first developed in Germany in the early 80 s. Over ten years of development and perfection, a complete product line has evolved from a single variety. The production process and the use technology are mature. Because of its excellent performance and relatively economical cost, it has been greatly popularized and applied in developed countries such as Europe and America. The double-wall corrugated pipe is a novel light pipe with high-density polyethylene as a raw material, has the characteristics of light weight, high pressure resistance, good toughness, quick construction, long service life and the like, has excellent pipe wall structural design, and greatly reduces the cost compared with pipes with other structures. And the connection is convenient and reliable, so that the method is widely applied at home and abroad. And a large number of concrete pipes and cast iron pipes are replaced.
The Chinese patent document with the publication number of CN206694680U discloses an HDPE double-wall corrugated pipe convenient to connect, which comprises an HDPE double-wall corrugated pipe first main body, wherein one side of the HDPE double-wall corrugated pipe first main body is provided with a first interface, the inside of the first interface is provided with a second thread, one side of the second thread is provided with a ferrule inner wall, one side of the ferrule inner wall is provided with an HDPE double-wall corrugated pipe first main body inner wall, the other side of the HDPE double-wall corrugated pipe first main body is provided with an HDPE double-wall corrugated pipe second main body, one side of the HDPE double-wall corrugated pipe second main body is provided with a second interface, the surface of the second interface is provided with a fixed ring, the top end of the fixed ring is provided with a sliding rail, the top end of the sliding rail is provided with a ferrule, and the surface of the ferrule is provided with a first thread.
The existing HDPE double-wall corrugated pipes are required to be connected with each other so as to prolong the length and meet the use requirements. Therefore, the working personnel need the HDPE double-wall corrugated pipe which can be connected quickly and efficiently, is simple in connection operation and is convenient to maintain.
Disclosure of Invention
Aiming at the problems in the background technology, an HDPE double-wall corrugated pipe is provided. The connecting inner pipe extends into the corrugated inner pipe. The corrugated inner pipe is clamped into the mounting groove, and the clamping piece is fixed to the corrugated inner pipe. The HDPE double-wall corrugated pipe is simple in connection mode, convenient to detach and replace the parts, and convenient and efficient to maintain.
The utility model provides an HDPE double-wall corrugated pipe, which comprises a corrugated inner pipe, a corrugated outer pipe and a connecting component; adjacent corrugated inner pipes are connected through a connecting component. The connecting assembly comprises a connecting inner pipe and a connecting outer sleeve; two ends of the connecting inner pipe extend into the corrugated inner pipe at the corresponding side respectively; the connecting outer sleeve is arranged on the periphery of the connecting inner tube, and annular mounting grooves are formed in the front side and the rear side of the connecting outer sleeve along the periphery of the connecting inner tube; the two groups of mounting grooves are arranged in a mirror image mode, and clamping pieces are arranged between the two groups of mounting grooves; the head of the corrugated inner tube extends into the mounting groove at the corresponding side and is fixed by the clamping piece.
Preferably, the connecting inner tube is attached to the inner wall of the corrugated inner tube.
Preferably, the outer wall of the connecting inner tube is provided with waves which are clamped with the waves on the inner wall of the corrugated inner tube.
Preferably, the corrugated inner tube is engaged with the groove wall of the mounting groove.
Preferably, the groove wall of the mounting groove is provided with corrugations matching the corrugated inner pipe.
Preferably, the clamping piece comprises a clamping frame, a pull rod, a handle and a spring; the connecting jacket is provided with a clamping groove communicated with the mounting groove; the head of the corrugated inner tube is provided with a mounting ring; the mounting ring is provided with a clamping hole; the clamping hole is opposite to the notch of the clamping groove; the pull rod is arranged in the clamping groove in a sliding way, one end of the pull rod extends out of the connecting sleeve and is connected with the handle, the other end of the pull rod is connected with the clamping frame, and the periphery of the pull rod is provided with a spring; the clamping frame is arranged in the clamping groove in a sliding way, and the bottom clamping end stretches out of the clamping groove to be clamped with the clamping hole under the pushing of the spring.
Preferably, the clamping frame is of a U-shaped structure, a water-absorbing expansion rubber layer is arranged outside the clamping frame, and the vertical sections on two sides are respectively clamped with the mounting rings on the corresponding sides.
Preferably, the connecting inner pipe is provided with a limiting hole; the limiting hole is communicated with the clamping hole and is clamped with the clamping frame.
Compared with the prior art, the utility model has the following beneficial technical effects:
1. the connecting inner pipe extends into the corrugated inner pipe. The corrugated inner pipe is clamped into the mounting groove, and the clamping piece is fixed to the corrugated inner pipe. The HDPE double-wall corrugated pipe is simple in connection mode, convenient to detach and replace the parts, and convenient and efficient to maintain.
2. The utility model is provided with the clamping piece, and the handle is pulled during clamping to withdraw the clamping frame from the mounting groove. And then the corrugated inner pipe is clamped into the mounting groove until the clamping hole is in place. The handle is loosened, the clamping frame is clamped into the clamping hole, and the corrugated inner tube is fixed. The operation is simple and convenient, and the replacement and maintenance of the local HDPE double-wall corrugated pipe are convenient.
Drawings
FIG. 1 is a schematic view of an external structure of an embodiment of the present utility model;
FIG. 2 is a cross-sectional view of an corrugated inner tube and an corrugated outer tube in one embodiment of the present utility model;
FIG. 3 is a side view of a connection assembly according to one embodiment of the present utility model;
fig. 4 is a cross-sectional view at a in fig. 2.
Reference numerals: 1. a corrugated inner tube; 2. a corrugated outer tube; 3. a connection assembly; 4. the connecting sleeve; 5. connecting the inner tube; 6. a clamping piece; 7. a mounting groove; 8. a mounting ring; 9. a spring; 10. a clamping groove; 11. a clamping frame; 12. a clamping hole; 13. a limiting hole; 14. a pull rod; 15. a handle.
Detailed Description
Example 1
As shown in fig. 1-3, the HDPE double-wall corrugated pipe provided by the utility model comprises a corrugated inner pipe 1, a corrugated outer pipe 2 and a connecting assembly 3; adjacent corrugated inner pipes 1 are connected through a connecting component 3. The connecting assembly 3 comprises a connecting inner pipe 5 and a connecting outer sleeve 4; two ends of the connecting inner pipe 5 extend into the corrugated inner pipe 1 at the corresponding side respectively; the connecting jacket 4 is arranged on the periphery of the connecting inner pipe 5, and annular mounting grooves 7 are formed on the front side and the rear side of the connecting jacket along the periphery of the connecting inner pipe 5; the two groups of mounting grooves 7 are arranged in a mirror image mode, and the clamping piece 6 is arranged between the two groups of mounting grooves 7; the head of the corrugated inner tube 1 extends into the corresponding side mounting groove 7 and is fixed by the engaging member 6.
The working principle of this embodiment is as follows: the corrugated inner tube 1 and the corrugated outer tube 2 are combined. The connecting inner tube 5 is then extended into the corrugated inner tube 1. The corrugated inner tube 1 is clamped into the mounting groove 7, and the clamping piece 6 is fixed on the corrugated inner tube 1. The HDPE double-wall corrugated pipe is simple in connection mode, convenient to detach and replace the parts, and convenient and efficient to maintain.
Example two
As shown in fig. 1-3, the HDPE double-wall corrugated pipe provided by the utility model comprises a corrugated inner pipe 1, a corrugated outer pipe 2 and a connecting assembly 3; adjacent corrugated inner pipes 1 are connected through a connecting component 3. The connecting assembly 3 comprises a connecting inner pipe 5 and a connecting outer sleeve 4; two ends of the connecting inner pipe 5 extend into the corrugated inner pipe 1 at the corresponding side respectively; the connecting jacket 4 is arranged on the periphery of the connecting inner pipe 5, and annular mounting grooves 7 are formed on the front side and the rear side of the connecting jacket along the periphery of the connecting inner pipe 5; the two groups of mounting grooves 7 are arranged in a mirror image mode, and the clamping piece 6 is arranged between the two groups of mounting grooves 7; the head of the corrugated inner tube 1 extends into the corresponding side mounting groove 7 and is fixed by the engaging member 6.
Further, the connecting inner tube 5 is attached to the inner wall of the corrugated inner tube 1.
Further, the outer wall of the connecting inner tube 5 is provided with corrugations, and is clamped with the inner wall corrugations of the corrugated inner tube 1.
In this embodiment, the inner connecting pipe 5 and the corrugated inner pipe 1 are provided with matched corrugations, and the inner connecting pipe 5 and the inner wall of the corrugated inner pipe 1 are bonded by the corrugated embossments of the inner connecting pipe 5 and the corrugated inner pipe 1, so that the connection firmness is improved.
Further, the corrugated inner tube 1 is engaged with the groove wall of the installation groove 7.
Further, the groove wall of the installation groove 7 is provided with corrugations matching the corrugated inner pipe 1.
In this embodiment, the installation groove 7 and the corrugated inner pipe 1 are provided with matched corrugations, and the corrugated inner pipe 1 and the installation groove 7 are clamped by the corrugated concave-convex stagger, so that the clamping firmness is improved.
Example III
As shown in fig. 1-3, the HDPE double-wall corrugated pipe provided by the utility model comprises a corrugated inner pipe 1, a corrugated outer pipe 2 and a connecting assembly 3; adjacent corrugated inner pipes 1 are connected through a connecting component 3. The connecting assembly 3 comprises a connecting inner pipe 5 and a connecting outer sleeve 4; two ends of the connecting inner pipe 5 extend into the corrugated inner pipe 1 at the corresponding side respectively; the connecting jacket 4 is arranged on the periphery of the connecting inner pipe 5, and annular mounting grooves 7 are formed on the front side and the rear side of the connecting jacket along the periphery of the connecting inner pipe 5; the two groups of mounting grooves 7 are arranged in a mirror image mode, and the clamping piece 6 is arranged between the two groups of mounting grooves 7; the head of the corrugated inner tube 1 extends into the corresponding side mounting groove 7 and is fixed by the engaging member 6.
Further, the connecting inner tube 5 is attached to the inner wall of the corrugated inner tube 1.
Further, the outer wall of the connecting inner tube 5 is provided with corrugations, and is clamped with the inner wall corrugations of the corrugated inner tube 1.
In this embodiment, the inner connecting pipe 5 and the corrugated inner pipe 1 are provided with matched corrugations, and the inner connecting pipe 5 and the inner wall of the corrugated inner pipe 1 are bonded by the corrugated embossments of the inner connecting pipe 5 and the corrugated inner pipe 1, so that the connection firmness is improved.
Further, the corrugated inner tube 1 is engaged with the groove wall of the installation groove 7.
Further, the groove wall of the installation groove 7 is provided with corrugations matching the corrugated inner pipe 1.
In this embodiment, the installation groove 7 and the corrugated inner pipe 1 are provided with matched corrugations, and the corrugated inner pipe 1 and the installation groove 7 are clamped by the corrugated concave-convex stagger, so that the clamping firmness is improved.
As shown in fig. 4, the engaging member 6 includes an engaging frame 11, a pull rod 14, a handle 15, and a spring 9; the connecting sleeve 4 is provided with a clamping groove 10 communicated with the mounting groove 7; the head of the corrugated inner tube 1 is provided with a mounting ring 8; the mounting ring 8 is provided with a clamping hole 12; the clamping hole 12 is opposite to the notch of the clamping groove 10; the pull rod 14 is arranged in the clamping groove 10 in a sliding way, one end of the pull rod extends out of the connecting sleeve 4 and is connected with the handle 15, the other end of the pull rod is connected with the clamping frame 11, and the periphery of the pull rod is provided with the spring 9; the clamping frame 11 is arranged in the clamping groove 10 in a sliding way, and the bottom clamping end stretches out of the clamping groove 10 to be clamped with the clamping hole 12 under the pushing of the spring 9.
In this embodiment, the specific structure of the engaging member 6 is provided, and the handle 15 is pulled during the engagement to withdraw the engaging frame 11 from the mounting groove 7. The corrugated inner tube 1 is clamped into the mounting groove 7 until the clamping hole 12 is in place. The handle 15 is loosened, the clamping frame 11 is clamped into the clamping hole 12, and the corrugated inner tube 1 is fixed. The operation is simple and convenient, and the replacement and maintenance of the local HDPE double-wall corrugated pipe are convenient.
Example IV
As shown in fig. 1-3, the HDPE double-wall corrugated pipe provided by the utility model comprises a corrugated inner pipe 1, a corrugated outer pipe 2 and a connecting assembly 3; adjacent corrugated inner pipes 1 are connected through a connecting component 3. The connecting assembly 3 comprises a connecting inner pipe 5 and a connecting outer sleeve 4; two ends of the connecting inner pipe 5 extend into the corrugated inner pipe 1 at the corresponding side respectively; the connecting jacket 4 is arranged on the periphery of the connecting inner pipe 5, and annular mounting grooves 7 are formed on the front side and the rear side of the connecting jacket along the periphery of the connecting inner pipe 5; the two groups of mounting grooves 7 are arranged in a mirror image mode, and the clamping piece 6 is arranged between the two groups of mounting grooves 7; the head of the corrugated inner tube 1 extends into the corresponding side mounting groove 7 and is fixed by the engaging member 6.
Further, the connecting inner tube 5 is attached to the inner wall of the corrugated inner tube 1.
Further, the outer wall of the connecting inner tube 5 is provided with corrugations, and is clamped with the inner wall corrugations of the corrugated inner tube 1.
In this embodiment, the inner connecting pipe 5 and the corrugated inner pipe 1 are provided with matched corrugations, and the inner connecting pipe 5 and the inner wall of the corrugated inner pipe 1 are bonded by the corrugated embossments of the inner connecting pipe 5 and the corrugated inner pipe 1, so that the connection firmness is improved.
Further, the corrugated inner tube 1 is engaged with the groove wall of the installation groove 7.
Further, the groove wall of the installation groove 7 is provided with corrugations matching the corrugated inner pipe 1.
In this embodiment, the installation groove 7 and the corrugated inner pipe 1 are provided with matched corrugations, and the corrugated inner pipe 1 and the installation groove 7 are clamped by the corrugated concave-convex stagger, so that the clamping firmness is improved.
As shown in fig. 4, the engaging member 6 includes an engaging frame 11, a pull rod 14, a handle 15, and a spring 9; the connecting sleeve 4 is provided with a clamping groove 10 communicated with the mounting groove 7; the head of the corrugated inner tube 1 is provided with a mounting ring 8; the mounting ring 8 is provided with a clamping hole 12; the clamping hole 12 is opposite to the notch of the clamping groove 10; the pull rod 14 is arranged in the clamping groove 10 in a sliding way, one end of the pull rod extends out of the connecting sleeve 4 and is connected with the handle 15, the other end of the pull rod is connected with the clamping frame 11, and the periphery of the pull rod is provided with the spring 9; the clamping frame 11 is arranged in the clamping groove 10 in a sliding way, and the bottom clamping end stretches out of the clamping groove 10 to be clamped with the clamping hole 12 under the pushing of the spring 9.
Further, the clamping frame 11 is of a U-shaped structure, a water-absorbing expansion rubber layer is arranged outside, and the vertical sections on two sides are respectively clamped with the mounting rings 8 on the corresponding sides. When water leakage occurs, the water-absorbing expansion rubber layer absorbs water, the clamping of the clamping frame 11 and the clamping hole 12 is firmer, further leakage is prevented, and leakage is prevented and reduced automatically.
Further, a limiting hole 13 is arranged on the connecting inner pipe 5; the limiting hole 13 is communicated with the clamping hole 12 and is clamped with the clamping frame 11. The whole tightness is further improved by matching the residual limiting holes 13 of the clamping frames 11.
The embodiments of the present utility model have been described in detail with reference to the drawings, but the present utility model is not limited thereto, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present utility model.

Claims (8)

1. The HDPE double-wall corrugated pipe is characterized by comprising a corrugated inner pipe (1), a corrugated outer pipe (2) and a connecting assembly (3); adjacent corrugated inner pipes (1) are connected through a connecting component (3);
the connecting component (3) comprises a connecting inner pipe (5) and a connecting outer sleeve (4); two ends of the connecting inner tube (5) respectively extend into the corrugated inner tube (1) at the corresponding side; the connecting jacket (4) is arranged on the periphery of the connecting inner tube (5), and annular mounting grooves (7) are formed on the front side and the rear side of the connecting jacket along the periphery of the connecting inner tube (5); the two groups of mounting grooves (7) are arranged in a mirror image mode, and a clamping piece (6) is arranged between the two groups of mounting grooves (7); the head of the corrugated inner tube (1) stretches into the mounting groove (7) at the corresponding side and is fixed through the clamping piece (6).
2. HDPE double-walled bellows according to claim 1, characterized in that the connecting inner tube (5) is attached to the inner wall of the corrugated inner tube (1).
3. HDPE double-walled bellows according to claim 2, characterized in that the outer wall of the connecting inner tube (5) is provided with corrugations which engage with the inner wall corrugations of the corrugated inner tube (1).
4. HDPE double-walled corrugated pipe according to claim 1, characterized in that the corrugated inner pipe (1) engages with the groove wall of the installation groove (7).
5. HDPE double-walled corrugated pipe according to claim 4, characterized in that the groove walls of the installation groove (7) are provided with corrugations matching the corrugated inner pipe (1).
6. HDPE double-walled bellows according to claim 1, characterized in that the snap-in element (6) comprises a snap-in frame (11), a pull rod (14), a handle (15) and a spring (9); a clamping groove (10) communicated with the mounting groove (7) is arranged on the connecting jacket (4); the head of the corrugated inner tube (1) is provided with a mounting ring (8); a clamping hole (12) is arranged on the mounting ring (8); the clamping hole (12) is opposite to the notch of the clamping groove (10); the pull rod (14) is arranged in the clamping groove (10) in a sliding way, one end of the pull rod extends out of the connecting sleeve (4), the connecting handle (15) is connected with the clamping frame (11), and the periphery of the pull rod is provided with the spring (9); the clamping frame (11) is arranged in the clamping groove (10) in a sliding way, and the bottom clamping end stretches out of the clamping groove (10) to be clamped with the clamping hole (12) under the pushing of the spring (9).
7. HDPE double-wall corrugated pipe according to claim 6, characterized in that the clamping frame (11) is of U-shaped structure, the outside is provided with a water-swelling rubber layer, and the vertical sections on both sides are respectively clamped with the mounting rings (8) on the corresponding sides.
8. HDPE double-wall corrugated pipe according to claim 6, characterized in that the connecting inner pipe (5) is provided with a limiting hole (13); the limiting hole (13) is communicated with the clamping hole (12) and is clamped with the clamping frame (11).
CN202223593226.6U 2022-12-29 2022-12-29 HDPE double-wall corrugated pipe Active CN219062689U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202223593226.6U CN219062689U (en) 2022-12-29 2022-12-29 HDPE double-wall corrugated pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202223593226.6U CN219062689U (en) 2022-12-29 2022-12-29 HDPE double-wall corrugated pipe

Publications (1)

Publication Number Publication Date
CN219062689U true CN219062689U (en) 2023-05-23

Family

ID=86377571

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202223593226.6U Active CN219062689U (en) 2022-12-29 2022-12-29 HDPE double-wall corrugated pipe

Country Status (1)

Country Link
CN (1) CN219062689U (en)

Similar Documents

Publication Publication Date Title
CN219062689U (en) HDPE double-wall corrugated pipe
CN102338256A (en) Novel non-metal compensator for pipeline
CN102313086A (en) Inner expansion connecting structure for screw sleeve type steel and plastic composite pipe
CN212377531U (en) Pipe connector with good sealing performance
CN211550831U (en) Water pump and turbine top cover high-pressure pipeline connecting structure
CN201803023U (en) Movable double-flange balance flexible connection pipe
CN202182270U (en) Flange type internal expansion connecting structure for steel plastic composite pipe
CN205065156U (en) Telescopic joint
CN208519386U (en) A kind of vacuum-resistant tetrafluoro compensator
CN202252455U (en) Screw sleeve type internal expansion connecting structure for steel-plastic composite pipes
CN217312787U (en) Tubular microfiltration membrane
CN219367109U (en) HDPE internal pressure reinforcing pipe
CN208793890U (en) A kind of high-temperature expansion joint
CN110985781A (en) Water pump and turbine top cover high-pressure pipeline connecting structure
CN221034398U (en) High-sealing PE corrugated pipe for drainage
CN218564677U (en) Environment-friendly water purifying joint
CN218094782U (en) Connecting device for gas pipeline
CN217815511U (en) Pipe joint sealing structure
CN211239194U (en) Glass fiber reinforced plastic cable protection pipe
CN220286686U (en) Water supply and drainage pipeline convenient to clearance
CN221004209U (en) Double-arm corrugated pipe for preventing stratum from subsidence
CN216390452U (en) Split type submarine cable tubular construction of jacket
CN104373735A (en) Steel pipeline compensator
CN220168792U (en) Novel reinforcing winding carat pipe
CN219549825U (en) Stainless steel braided hose

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20240424

Address after: 443000, No. 395 Jianghan Avenue, Xiannv Town, Zhijiang City, Yichang City, Hubei Province

Patentee after: Hubei Tongjun Pipe Technology Co.,Ltd.

Country or region after: China

Address before: No.1 and No.2, Pengshan Road, Fuwan Industrial Zone, Hecheng street, Gaoming District, Foshan City, Guangdong Province

Patentee before: FOSHAN SHENGCHANG PIPE INDUSTRY TECHNOLOGY Co.,Ltd.

Country or region before: China

TR01 Transfer of patent right