CN212338579U

CN212338579U - Double-wall corrugated pipe orifice plugging device

Info

Publication number: CN212338579U
Application number: CN202020779423.9U
Authority: CN
Inventors: 姚海燕; 徐菲; 张三元; 陈见君; 吴明山; 陈华兵
Original assignee: Hubei Renfeng Environmental Protection New Material Co ltd
Current assignee: Hubei Renfeng Environmental Protection New Material Co ltd
Priority date: 2020-05-12
Filing date: 2020-05-12
Publication date: 2021-01-12
Anticipated expiration: 2030-05-12

Abstract

Double-walled bellows mouth of pipe plugging device, including supporting shoe, end cover and pull rod, the supporting shoe is articulated with polylith arc piece respectively through many connecting rods all around, pull rod one end and supporting shoe middle part threaded connection, the other one end of pull rod is connected with the end cover through tensile portion, fixedly connected with stopper and overcoat have the slider on the pull rod, the slider is articulated with each connecting rod respectively through many push rods, there is the spring at the pull rod overcoat, the spring both ends lean on respectively on stopper and slider. The utility model discloses can make things convenient for quick carry out the shutoff to the double-walled bellows mouth of pipe.

Description

Double-wall corrugated pipe orifice plugging device

Technical Field

The utility model relates to a double-walled bellows mouth of pipe plugging device.

Background

After the double-wall corrugated pipe is connected, a hydrostatic test needs to be carried out on the connected double-wall pipe, and the pipe orifice of the double-wall pipe with a larger pipe diameter is difficult to seal.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide double-walled bellows mouth of pipe plugging device, can make things convenient for quick carry out the shutoff to the double-walled bellows mouth of pipe.

In order to solve the above problem, the to-be-solved technical scheme of the utility model is:

double-walled bellows mouth of pipe plugging device, including supporting shoe, end cover and pull rod, the supporting shoe is articulated with polylith arc piece respectively through many connecting rods all around, pull rod one end and supporting shoe middle part threaded connection, the other one end of pull rod is connected with the end cover through tensile portion, fixedly connected with stopper and overcoat have the slider on the pull rod, the slider is articulated with each connecting rod respectively through many push rods, there is the spring at the pull rod overcoat, the spring both ends lean on respectively on stopper and slider.

The rubber sheet is fixedly connected outside the arc sheet.

An insertion pipe is fixedly connected to one end of the end cover, and a plurality of sealing rings are arranged outside the insertion pipe.

The stretching part comprises a shaft seal connected to the end cover, one end of the pull rod penetrates through the shaft seal to be fixedly connected with the pressure plate, and a lifting lug is fixedly connected to the end face of the pressure plate.

The utility model has the advantages that: after the end cover is placed at the orifice of the corrugated pipe, the pull rod pulls each arc-shaped piece to prop against the inner wall of the corrugated pipe so as to seal and fix the end cover to the orifice of the corrugated pipe, the operation is simple and convenient, and the plugging device has a simple structure and is convenient to manufacture.

Drawings

The invention will be further explained with reference to the drawings:

FIG. 1 is a schematic sectional view of the present invention,

FIG. 2 is a schematic view of a cross-sectional junction structure at A-A in FIG. 1,

fig. 3 is a schematic diagram of the local enlarged structure of the present invention.

In the figure: the device comprises a supporting block 1, a connecting rod 2, an arc-shaped piece 3, a rubber piece 4, a push rod 5, a pull rod 6, a corrugated pipe 7, a sealing ring 8, an insertion pipe 9, an end cover 10, a shaft seal 11, a lifting lug 12, a pressure plate 13, a limiting block 14, a spring 15 and a sliding block 16.

Detailed Description

As shown in fig. 1 to 3, the plugging device for the pipe orifice of the double-wall corrugated pipe comprises a supporting block 1, an end cover 10 and a pull rod 6, wherein the supporting block 1 is hinged to a plurality of arc-shaped pieces 3 through a plurality of connecting rods 2, one end of the pull rod 6 is in threaded connection with the middle of the supporting block 1, the other end of the pull rod 6 is connected with the end cover 10 through a stretching part, a limiting block 14 and a sliding block 16 are fixedly connected to the pull rod in a sleeved mode, the sliding block 16 is hinged to each connecting rod 2 through a plurality of push rods 5, a spring 15 is sleeved outside the pull rod, and two ends of the spring 15.

When the corrugated pipe orifice is required to be plugged, each arc-shaped piece 3 can be inserted into the corrugated pipe, the spring 15 pushes each arc-shaped piece 3 to abut against the inner wall of the corrugated pipe, and when the end cover 10 abuts against the orifice, the support block 1 can be pulled outwards through the rotary pull rod 6, so that each arc-shaped piece 3 is tightly attached to the inner wall of the corrugated pipe, and the end cover 10 is enabled to seal the corrugated pipe orifice.

The rubber sheet 4 is fixedly connected outside the arc sheet 3. The rubber sheet 4 can have an anti-slip effect.

An insertion tube 9 is fixedly connected to one end of the end cover 10, and a plurality of rings of sealing rings 8 are arranged outside the insertion tube 9. The cannula 9 is intended on the one hand to improve the sealing effect and on the other hand to guide and position the end cap 10.

The stretching part comprises a shaft seal 11 connected to an end cover 10, one end of a pull rod 6 penetrates through the shaft seal 11 to be fixedly connected with a pressure plate 13, and a lifting lug 12 is fixedly connected to the end face of the pressure plate 13. When the pull rod 6 needs to be rotated, a steel pipe, a wrench or a steel bar and other rod-shaped objects can be inserted into the hole of the lifting lug 12 to screw the pull rod 6, so that the plugging device is more convenient to operate.

Claims

1. Double-walled bellows mouth of pipe plugging device, its characterized in that: including supporting shoe (1), end cover (10) and pull rod (6), supporting shoe (1) is articulated with polylith arc piece (3) respectively through many connecting rods (2) all around, pull rod (6) one end and supporting shoe (1) middle part threaded connection, pull rod (6) other one end is connected with end cover (10) through tensile portion, fixedly connected with stopper (14) and overcoat have slider (16) on the pull rod, slider (16) are articulated with each connecting rod (2) respectively through many push rods (5), there is spring (15) at the pull rod overcoat, spring (15) both ends are supported respectively and are leaned on stopper (14) and slider (16).

2. The double-walled bellows nozzle plugging device of claim 1, wherein: the rubber sheet (4) is fixedly connected outside the arc sheet (3).

3. The double-walled bellows orifice plugging device according to claim 1 or 2, wherein: one end of the end cover (10) is fixedly connected with an insertion pipe (9), and a plurality of rings of sealing rings (8) are arranged outside the insertion pipe (9).

4. The double-walled bellows orifice plugging device according to claim 1 or 2, wherein: the stretching part comprises a shaft seal (11) connected to an end cover (10), one end of a pull rod (6) penetrates through the shaft seal (11) to be fixedly connected with a pressure plate (13), and a lifting lug (12) is fixedly connected to the end face of the pressure plate (13).