CN204849771U

CN204849771U - Packer

Info

Publication number: CN204849771U
Application number: CN201520578124.8U
Authority: CN
Inventors: 杜天刚; 刘开华
Original assignee: CHONGQING 18 TUXINCHENG GROUTING WATERPROOFING ENGINEERING Co Ltd
Current assignee: CHONGQING 18 TUXINCHENG GROUTING WATERPROOFING ENGINEERING Co Ltd
Priority date: 2015-08-04
Filing date: 2015-08-04
Publication date: 2015-12-09
Anticipated expiration: 2025-08-04

Abstract

The embodiment of the utility model discloses packer, including grout pipe, leaking stoppage area and the pipe of watering in advance. Wherein, the grout pipe is the hollow tube, the outer wall setting of grout pipe the leaking stoppage area, the leaking stoppage area is the gridle column structure, encircles the periphery of grout pipe, the inner wall in leaking stoppage area with the outer wall in close contact with of grout pipe, the pipe activity of watering in advance set up in in the space that grout pipe outer wall and grout hole inner wall formed, and point to the leaking stoppage area, be used for to water in the leaking stoppage area. Water is met in the leaking stoppage area, and thereby the inflation is filled the grout pipe outer wall with the space that the grout hole inner wall formed, just the leaking stoppage area with the inner wall of grout hole has very big frictional force, is enough to resist grouting material's impact force prevents effectively that grouting material backward flow from spilling over, and packer need not to carry on the manual regulation at the grout in -process, operates more portably.

Description

A kind of packer

Technical field

The utility model relates to builds grouting technique field, particularly relates to a kind of packer.

Background technology

Grouting is that grouting agent is poured into stratum, by the infiltration of grouting agent, diffusion, gelling or solidification, increasing formation strength, reduces stratum permeability, prevents stratum deformation and carries out a kind of technology that concrete structure studies for a second time courses one has flunked.In pit mining, tunnel and underground structure construction and water conservancy and hydropower curtain water stop engineering, often need to be in the milk.Concrete grouting step generally comprises, and preboring one grout hole, then stretches into described grout hole by grout pipe, and grouting agent pours into stratum by described grout pipe; The diameter of grout hole is generally greater than the caliber of grout pipe, and in filling process, grouting agent is easy to reflux from the space between the inwall and the outer wall of grout pipe of grout hole overflow, and adequate measures therefore must be taked in engineering to be blocked.

Packer is a kind of common equipment preventing grouting agent backflow from overflowing.In the packer of prior art, air type packer is the most common, and its primary structure generally comprises air bag, pressure valve and the inflator pump etc. that are bundled in grout pipe outer wall.Described inflator pump is connect by pipeline and described airbags and to described airbag aeration; Described pressure valve is arranged on the pipeline of the described inflator pump of connection and described air bag, for regulating the blowing pressure of described inflator pump.Described airbag aeration expands, and fills up the space between described grout pipe and described grout hole, thus prevents grouting agent backflow from overflowing.

But in use, the blowing pressure is too little for existing air type packer, easily causes described airbag aeration insufficient, can not realize blocking function; The blowing pressure is too large, easily causes balloon rupture; And, in filling process, the actuating pressure of grouting agent to described air bag of backflow also constantly changes, staff needs to adjust described pressure valve at any time, to ensure that described air bag can match with the actuating pressure of described grouting agent, greatly increase the operation easier of packer, be easy to overflow because backflow occurs misoperation.

Utility model content

The utility model embodiments provides a kind of packer, to solve packer usability of the prior art difference and easily to return the problem of slurry.

In order to solve the problems of the technologies described above, the utility model embodiment discloses following technical scheme:

The utility model embodiment discloses a kind of packer, comprises grout pipe, leak stopping band and inoculated water conduit, wherein:

Described grout pipe is hollow tube, and the outer wall of described grout pipe arranges described leak stopping band;

Described leak stopping band is endless belt-shaped structure, periphery around described grout pipe, the inwall of described leak stopping band and the outer wall close contact of described grout pipe;

Point to described leak stopping band, for pouring water to described leak stopping band in the space that the inwall of outer wall and grout hole that described inoculated water conduit is movably set in described grout pipe is formed.

Preferably, described leak stopping band is arranged at the top of described grout pipe and/or the outer wall of bottom.

Preferably, described leak stopping band is water-swellable putty band or polyurethane foam leak stopping band.

Preferably, the width of described leak stopping band is 6-12cm.

Preferably, the external diameter of described leak stopping band nature is less than the internal diameter of described grout hole.

From above technical scheme, a kind of packer that the utility model embodiment provides, comprises grout pipe, leak stopping band and inoculated water conduit; Wherein, described grout pipe is hollow tube, and the outer wall of described grout pipe arranges described leak stopping band; Described leak stopping band is endless belt-shaped structure, periphery around described grout pipe, the inwall of described leak stopping band and the outer wall close contact of described grout pipe; Described inoculated water conduit to be movably set in space that described grout pipe outer wall and grout hole inwall formed and to point to described leak stopping band, for pouring water to described leak stopping band.In actual use, described inoculated water conduit is poured water to described leak stopping band, described leak stopping band water-swellable thus effectively fill up described space, and described leak stopping band and described grout hole have very large frictional force, be enough to opposing grouting agent to the impact of described leak stopping band, reach the object that anti-backflow is overflowed, in filling process, without the need to manually adjusting described packer, operate easier.

Accompanying drawing explanation

In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, for those of ordinary skills, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.

The structural representation of a kind of packer that Fig. 1 provides for the utility model embodiment;

The plan structure schematic diagram of a kind of packer that Fig. 2 provides for the utility model embodiment;

The structural representation of the another kind of packer that Fig. 3 provides for the utility model embodiment;

The symbol of Fig. 1-3 is expressed as:

1-grout pipe, 2-leak stopping band, 3-inoculated water conduit, 4-grout hole.

Detailed description of the invention

Technical scheme in the utility model is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all should belong to the scope of the utility model protection.

Embodiment one

See Fig. 1, be the structural representation of a kind of packer that the utility model embodiment provides, also referring to Fig. 2, can be the plan structure schematic diagram of a kind of packer that the utility model embodiment provides, comprise grout pipe 1, leak stopping band 2 and inoculated water conduit 3.

Wherein, described grout pipe 1 is hollow tube, and grouting agent flows through and injects stratum in described grout pipe 1.Time in working order, it is inner that described grout pipe 1 stretches into described grout hole 4.Preferably, described grout pipe 1 is cylindrical, hollow pipe, and certain described grout pipe 1 can be the hollow tube of other shapes arbitrarily, such as cuboid etc.

Described leak stopping band 2, is arranged at the outer wall at described grout pipe 1 top, and described grout pipe 1 top can be understood as, the subaerial part of described grout pipe 1; Described leak stopping band 2 is endless belt-shaped structure, periphery, the inwall of described leak stopping band 2 and the outer wall close contact of described grout pipe 1 around described grout pipe 1.The mode that described leak stopping band 2 can select silicone adhesive to paste is fixed on the outer wall of described grout pipe 1.Described leak stopping band 2 diameter is in its natural state less than the internal diameter of described grout hole 4, to ensure that described grout pipe 1 stretches into described grout hole 4 smoothly.Described leak stopping band 2 is water-swellable putty band or polyurethane foam leak stopping band, described water-swellable putty band or described polyurethane foam leak stopping band meet water and self-expansion, the coefficient of expansion can reach 200%-300%, the space that the inwall of the outer wall and grout hole 4 that grout pipe 1 filled up effectively by the described water-swellable putty band after expansion or described polyurethane foam leak stopping band is formed and have good frictional force with the inwall of described grout hole 4, be enough to resist the impact force that in filling process, grouting agent backflow produces, reach the object that anti-backflow is overflowed.Preferably, the width of described leak stopping band 2 is 6-12cm.Certainly, described leak stopping band 2 can be the expanding material of other any materials, and the size of described leak stopping band 2 also can be other arbitrary values.

Described inoculated water conduit 3, in the space that the inwall of the outer wall and described grout hole 4 that are movably set in described grout pipe 1 is formed.And described inoculated water conduit 3 points to described leak stopping band 2, conveniently described leak stopping band 2 is poured water.In actual use, described inoculated water conduit 3 is poured water to described leak stopping band 2, and described leak stopping band 2 is expand into be enough to block described space and after passed examination, described inoculated water conduit 3 can be extracted out; In filling process, constructor, without the need to adjusting packer, can realize the blocking function of described packer easily.

Embodiment two

As shown in Figure 3, be the structural representation of the another kind of packer that the utility model embodiment provides, comprise grout pipe 1, leak stopping band 2 and inoculated water conduit 3.The difference part of the present embodiment and embodiment one is, the outer wall bottom described grout pipe 1 is also provided with described leak stopping band 2.Wherein, can be understood as bottom described grout pipe 1, described grout pipe 1 stretches into described grout hole 4 and the part of close described grout hole 4 inside.Be arranged at the described leak stopping band 2 of described grout pipe 1 bottom outer wall also for endless belt-shaped structure and closely around the periphery of described grout pipe 1.Certainly, described leak stopping band 2 can be arranged at the optional position of the outer wall of described grout pipe 1, such as the middle part etc. of described grout pipe 1.The utility model embodiment and embodiment one same section referring to embodiment one, can not repeat them here.

Described leak stopping band 2 is arranged at bottom described grout pipe 1 with on the outer wall at top, if grouting agent breaches the leak stopping band 2 being arranged at described grout pipe 1 bottom outer wall in filling process, the leak stopping band 2 of described grout pipe 1 bottom outer wall effectively can cut down the pressure of grouting agent, thus make described grouting agent be difficult to continue to break through the leak stopping band 2 being arranged at described grout pipe 1 top exterior walls, further enhancing the sealing of described packer, thus prevent the backflow of grouting agent from overflowing.And when reality uses, the space that the inwall of outer wall and described grout hole 4 that described inoculated water conduit 3 first can stretch into described grout pipe 1 is formed, the described leak stopping band 2 being positioned at described grout pipe 1 bottom outer wall is poured water, extract described inoculated water conduit 3 more outward, the described leak stopping band 2 being positioned at described grout pipe 1 top exterior walls is poured water, until described leak stopping band 2 complete expansion, in filling process also without the need to adjustment, easy to use.

Embodiment one to two is only the utility model section Example, and certainly, described leak stopping band 2 also can be arranged at the optional position of described grout pipe 1 tube wall by those skilled in the art, the such as middle part etc. of described grout pipe 1 tube wall; Described packer also can comprise any number of described leak stopping band 2, and multiple described leak stopping band 2 can be spaced from each other or close to each other.

The above is only detailed description of the invention of the present utility model, those skilled in the art is understood or realizes the utility model.To be apparent to one skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.

Claims

1. a packer, is characterized in that, comprises grout pipe (1), leak stopping band (2) and inoculated water conduit (3), wherein:

Described grout pipe (1) is hollow tube, and the outer wall of described grout pipe (1) arranges described leak stopping band (2);

Described leak stopping band (2) is endless belt-shaped structure, periphery around described grout pipe (1), the inwall of described leak stopping band (2) and the outer wall close contact of described grout pipe (1);

Point to described leak stopping band (2), for pouring water to described leak stopping band (2) in the space that the inwall of outer wall and grout hole (4) that described inoculated water conduit (3) is movably set in described grout pipe (1) is formed.

2. packer according to claim 1, is characterized in that, described leak stopping band (2) is arranged at the top of described grout pipe (1) and/or the outer wall of bottom.

3. packer according to claim 1 and 2, is characterized in that, described leak stopping band (2) is water-swellable putty band or polyurethane foam leak stopping band.

4. packer according to claim 1, is characterized in that, the width of described leak stopping band (2) is 6-12cm.

5. packer according to claim 1, is characterized in that, the external diameter of described leak stopping band (2) nature is less than the internal diameter of described grout hole (4).