CN2512976Y

CN2512976Y - Pipeline blocking device

Info

Publication number: CN2512976Y
Application number: CN 01277371
Authority: CN
Inventors: 王海忠
Original assignee: WUJIAQU PUBLIC INFORMATION INDUSTRY Co Ltd XINJIANG
Current assignee: WUJIAQU PUBLIC INFORMATION INDUSTRY Co Ltd XINJIANG
Priority date: 2001-12-20
Filing date: 2001-12-20
Publication date: 2002-09-25
Anticipated expiration: 2011-12-20

Abstract

The utility model belongs to the improvement of the blocking device for the pipeline opening of pipeline construction, in particular to a pipeline blocking device, which consists of a tension rod, a tension core, a tension sleeve and a seal ring. The tension rod is the rod body with threads, whose head is provided with a rotating handle and the tail part is provided with a blocking shoulder. The screw holes on the center of the tension core with the outside column surface in the cone surface are cooperated with the threads of the rod body of the tension rod, and the end is provided with a tension sleeve having blocking shoulder in a drum shape, and the central hole on the drum bottom is moveably cooperated with the tension rod. The outside cone surface of the tension core and the internal drum wall of the tension sleeve are cooperated with each other. The external drum wall of the tension sleeve is provided with the seal ring. A seal ring is arranged between the inside of the blocking shoulder of the tension rod and the drum bottom external wall of the tension sleeve. The utility model has good blocking and sealing effects, which can effectively prevent the sediment from entering pipeline, and the utility model is convenient for installation and disassembling, which can be used repeatedly.

Description

The pipe plugging device

Technical field: the utility model belongs to the improvement of pipeline construction pipeline opening blocking device, particularly a kind of pipe plugging device.

Background technique: at present, some pipelines need the pipeline opening shutoff with some position in advance in underground burial and construction process, and as communication pipe, and the device of blocking pipe mouth is with waterproof cement, concrete shutoff in advance.When constructing, be subjected to the restriction of various conditions with cement, the concrete shutoff mouth of pipe in the open air, the shutoff mouth of pipe is difficulty relatively, and raw-material cost height.Along with the variation of temperature, after the concrete drying is solidified, often cause be full of cracks, make silt bring in the pipeline and deposit along with current, have a strong impact on construction in later period.When construction in later period, the blocking device of the mouth of pipe need be unloaded down, but the concrete plug is set in the mouth of pipe, dismounting concrete plug is very difficult, and the concrete plug that disassembles can not be reused.

Summary of the invention: the purpose of this utility model is to provide a kind of pipe plugging device, not only is not subjected to the influence of climatic environment, and plugging effect is good, can effectively prevent in the pipeline after sealing, silt enter shutoff.And install, dismantle easily, can use repeatedly.

The purpose of this utility model is achieved in that a kind of pipe plugging device, by tighting rod, the tensioner core, tensioner cover and seal ring are formed, tighting rod is the screwed body of rod, its head is provided with turning handle, its afterbody is provided with shoulder block, external cylindrical surface is the tensioner core of conical surface, the threads engaged of the screw at its center and the tighting rod body of rod, the end has the tensioner cover of the round barrel shape of shoulder block, center hole and tighting rod are movingly at the bottom of its barrel, the inner barrel wall of the outer conical surface of tensioner core and tensioner cover matches, and on the outer barrel wall of tensioner cover seal ring is installed, and between the inboard of tighting rod shoulder block and the tensioner cover barrel end outer wall seal ring is installed.

When the utility model uses, rotate tighting rod earlier, make the disengagement that cooperates of tensioner cover and tensioner core, after the utility model filled in the mouth of pipe, rotate tighting rod, force the tensioner core to be pressed in the tensioner cover by body of rod rotation screw thread, the external diameter of the opening side of tensioner cover is increased, and seal by seal ring on it and spout diameter tensioner.Good sealing effect has prevented in the pipeline after water, silt enter shutoff effectively.When construction in later period, the counter-rotating tighting rod withdraws from the tensioner core by screw thread in the tensioner cover, and the tensioner cover shrinks original state, easily the utility model is unloaded down from the mouth of pipe.The utility model can repeated multiple times use, and is not subjected to the influence of climatic environment.

Description of drawings: Fig. 1 shows structural representation for the utility model complete section, and Fig. 2 shows structural representation for the tighting rod complete section, and Fig. 3 is the plan structure schematic representation of Fig. 2.

Embodiment: the utility model is described in further detail below in conjunction with accompanying drawing, a kind of pipe plugging device, by tighting rod 3, tensioner core 1, tensioner cover 5 and seal ring 4,6 form, tighting rod 3 is the screwed body of rod, its head is provided with turning handle 2, and turning handle 2 is suspension ring shape or pancake or prismatic, and the afterbody of tighting rod 3 is provided with shoulder block.Tighting rod 3 is a hollow stem, to save material.External cylindrical surface is the tensioner core 1 of conical surface, the threads engaged of the screw at its center and tighting rod 3 bodies of rod, and the end has the tensioner cover 5 of the round barrel shape of shoulder block, and center hole and tighting rod 3 are movingly at the bottom of its barrel.Tensioner cover 5 is made of high density polyethylene (HDPE), has certain flexibility and ductility, and intensity and corrosion resistance are all relatively good.The outer conical surface of tensioner core 1 matches with the inner barrel wall of tensioner cover 5, on the outer barrel wall of tensioner cover 5 seal ring 6 is installed, and seal ring 6 is a rubber seal.At the bottom of 5 barrels in the inboard of tighting rod 3 shoulder blocks and tensioner cover, between the outer wall seal ring 4 is installed.

Claims

1. pipe plugging device, it is characterized in that: by tighting rod (3), tensioner core (1), tensioner cover (5) and seal ring (4,6) form, tighting rod (3) is the screwed body of rod, its head is provided with turning handle (2), its afterbody is provided with shoulder block, external cylindrical surface is the tensioner core (1) of conical surface, the threads engaged of the screw at its center and tighting rod (3) body of rod, the end has the tensioner cover (5) of the round barrel shape of shoulder block, center hole and tighting rod (3) are movingly at the bottom of its barrel, the outer conical surface of tensioner core (1) matches with the inner barrel wall of tensioner cover (5), seal ring (6) is installed on the outer barrel wall of tensioner cover (5), between the inboard of tighting rod (3) shoulder block and tensioner cover (5) bucket end outer wall, seal ring (4) is installed.

2. pipe plugging device according to claim 1 is characterized in that: turning handle (2) is suspension ring shape or pancake or prismatic.

3. pipe plugging device according to claim 1 is characterized in that: tensioner cover (5) is made of high density polyethylene (HDPE).