CN217951646U - Expansion device - Google Patents

Expansion device Download PDF

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Publication number
CN217951646U
CN217951646U CN202222209692.3U CN202222209692U CN217951646U CN 217951646 U CN217951646 U CN 217951646U CN 202222209692 U CN202222209692 U CN 202222209692U CN 217951646 U CN217951646 U CN 217951646U
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CN
China
Prior art keywords
sliding rail
oil cylinder
connector
oil
fixed
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Active
Application number
CN202222209692.3U
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Chinese (zh)
Inventor
王周城
王新德
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Shanghai Xinte Pipeline Engineering Co ltd
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Shanghai Xinte Pipeline Engineering Co ltd
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Priority to CN202222209692.3U priority Critical patent/CN217951646U/en
Application granted granted Critical
Publication of CN217951646U publication Critical patent/CN217951646U/en
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Abstract

An expander. The left sliding rail is in sliding fit with the right sliding rail through the T-shaped sliding groove, expanding shafts are respectively fixed on the lower sides of the left sliding rail and the right sliding rail, supporting frames are fixed on the front and back of the surface of the right sliding rail, an oil cylinder supporting frame is fixed on the surface of the left sliding rail, an inner cavity of the oil cylinder supporting frame is arranged at the bottom end of an oil cylinder, a piston of oil 1 is connected with a connector, the connector is connected with the supporting frames through a pin shaft, and an oil cylinder oil inlet is formed in the upper end of the oil cylinder. Compared with the prior art, the expander overcomes the defects that a pipeline sealing rubber ring is not firmly sealed and water leakage is easily caused, and the expander for lengthening the perimeter of the steel ring is designed, fills steel belts made of the same materials after expansion to enlarge the diameter of the steel ring, has enough tension to compact the sealing rubber ring, and achieves effective sealing.

Description

Expansion device
Technical Field
The utility model relates to an expand ware relates to that the pipe laying technical field is applied to underground cement pipeline's sealing.
Background
With the development of cities, the laying of underground pipelines, some pipelines adopting plastics as raw materials are convenient to bury pipes, but for the laying of pipelines with larger diameters, cement pipelines are generally adopted for connection laying, particularly the splicing of large-scale pipelines, the pipeline connection parts all have a sealing problem, a sealing rubber ring is required for sealing, as the sealing rubber ring is not pressurized and sealed, water leakage is easy to happen due to poor sealing of the sealing rubber ring, serious whole engineering is scrapped due to serious water leakage, the inside of the pipeline is pressurized through a steel ring to realize sealing for solving the problem, the diameter of the steel ring is smaller than that of the pipeline and is not enough to compress the sealing rubber ring, the perimeter of the steel ring can only be lengthened in the pipeline, the sealing rubber ring is compressed through the physical elasticity of the lengthened steel ring, but a device for expanding the lengthened steel ring is required to be designed, steel belts made of the same material are filled after expanding, the diameter of the steel ring is expanded, and the sealing rubber ring is compressed with enough tension.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the not firm defect of sealing between cement pipeline, design the device that expands of extension steel ring girth, fill the steel band of the same material after expanding, reach the steel ring diameter and enlarge, realize having the ware that expands of enough tension compaction sealing rubber ring.
The technology is realized as follows: including expanding axle, right side slip rail, round pin axle, supporting rack, connector, piston, hydro-cylinder oil inlet, left side slip rail, hydro-cylinder supporting rack, its characterized in that: the left sliding rail is in sliding fit with the right sliding rail through a T-shaped sliding groove, the lower sides of the left sliding rail and the right sliding rail are respectively fixed with an expansion shaft, a supporting frame is fixed on the front and back of the right sliding rail surface, an oil cylinder supporting frame is fixed on the left sliding rail surface, the bottom end of an oil cylinder is arranged in the inner cavity of the oil cylinder supporting frame, a piston of the oil cylinder is connected with a connector, the connector is connected with the supporting frame through a pin shaft, and the upper end of the oil cylinder is provided with an oil cylinder oil inlet.
The obvious advantages and effects after the technology is implemented are as follows: compared with the prior art, the expander overcomes the defects that the sealing rubber ring of a cement pipeline is not firmly sealed and water leakage is easily caused, and the expander for lengthening the perimeter of the steel ring is designed, fills a steel belt made of the same material after expansion to enlarge the diameter of the steel ring, has enough tension to compact the sealing rubber ring, and achieves effective sealing.
Drawings
FIG. 1 is a schematic view of the structure of the present invention,
the device comprises an expansion shaft 1, a steel ring 2, an expansion filling block 3, an expansion filling block 4, an expansion filling block fixing buckle 5, a T-shaped sliding groove 6, a right sliding rail 6, a pin shaft 7, a supporting frame 8, a connector 9, a piston 10, an oil cylinder 11, an oil cylinder oil inlet 12, a left sliding rail 13, an oil cylinder supporting frame 14 and a sealing rubber ring 15.
Detailed Description
The invention will be further described, by way of example, with reference to the accompanying drawings, in which:
referring to the attached drawing 1, a left sliding rail 13 is in sliding fit with a right sliding rail 6 through a T-shaped sliding groove 5, expanding shafts 1 are respectively fixed on the lower sides of the left sliding rail 13 and the right sliding rail 6, supporting frames 8 are fixed on the front and back of the surface of the right sliding rail 6, an oil cylinder supporting frame 14 is fixed on the surface of the left sliding rail 1, the bottom end of an oil cylinder 11 is arranged in an inner cavity of the oil cylinder supporting frame 14, a piston 10 of the oil cylinder 11 is connected with a connector 9, the connector 9 is connected with the supporting frame 8 through a pin shaft 7, and an oil cylinder oil inlet 12 is arranged at the upper end of the oil cylinder 11.
Referring to the attached drawing 1, when the steel ring 2 expands, the steel ring 2 presses on the inner circumferential surface of the sealing rubber ring 15, the two expansion shafts 1 are respectively inserted into holes at two ends of the steel ring 2, the oil cylinder 11 is started, oil with pressure enters the oil cylinder 11, the piston 10 is pushed, the left sliding rail 13 and the right sliding rail 6 are driven to move in opposite directions through the T-shaped sliding groove 5, the two expansion shafts 1 also move in opposite directions according to the moving directions of the right sliding rail 6 and the left sliding rail 13, the distance of the opening of the steel ring 2 is opened, the expansion distance of the two expanding filler block fixing buckles 4 is larger than the length of the expanding filler block 3, the expanding filler block 3 is lightly filled between the two expanding filler block fixing buckles 4, the circumferential length of the steel ring 2 is increased, the diameter of the steel ring 2 is increased, the elastic pressure of the steel ring 2 is forced to move to the inner circumference of the sealing rubber ring 15, and the sealing rubber ring 15 is compressed, and the purpose of sealing the sealing rubber ring 15 for sealing a pipeline is achieved.
After the work is finished, the oil cylinder 11 is downloaded and the device is taken out for standby.

Claims (1)

1. The utility model provides an expand ware, is including expanding axle, right side slip rail, round pin axle, supporting rack, connector, piston, hydro-cylinder oil inlet, left side slip rail, hydro-cylinder supporting rack, its characterized in that: the left sliding rail is in sliding fit with the right sliding rail through the T-shaped sliding groove, expanding shafts are respectively fixed on the lower sides of the left sliding rail and the right sliding rail, supporting frames are fixed on the front and back of the surface of the right sliding rail, an oil cylinder supporting frame is fixed on the surface of the left sliding rail, an inner cavity of the oil cylinder supporting frame is arranged at the bottom end of an oil cylinder, a piston of the oil cylinder is connected with a connector, the connector is connected with the supporting frames through a pin shaft, and an oil cylinder oil inlet is formed in the upper end of the oil cylinder.
CN202222209692.3U 2022-08-18 2022-08-18 Expansion device Active CN217951646U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202222209692.3U CN217951646U (en) 2022-08-18 2022-08-18 Expansion device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202222209692.3U CN217951646U (en) 2022-08-18 2022-08-18 Expansion device

Publications (1)

Publication Number Publication Date
CN217951646U true CN217951646U (en) 2022-12-02

Family

ID=84231474

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202222209692.3U Active CN217951646U (en) 2022-08-18 2022-08-18 Expansion device

Country Status (1)

Country Link
CN (1) CN217951646U (en)

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