CN210829321U

CN210829321U - Umbrella-shaped top-hat support bag

Info

Publication number: CN210829321U
Application number: CN201921473114.2U
Authority: CN
Inventors: 郑文贤
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-05
Filing date: 2019-09-05
Publication date: 2020-06-23
Anticipated expiration: 2029-09-05

Abstract

The utility model discloses an umbrella-type capping support bag belongs to coal mining technical field. An umbrella-shaped roof support bag comprises a single hydraulic prop, a flexible bag, a chassis, an umbrella-shaped top and a grouting pipe. The hydraulic prop is characterized in that the single hydraulic prop is made of glass fiber reinforced plastic materials, the single hydraulic prop and the umbrella-shaped top form a whole, the chassis is arranged at the bottom of the single hydraulic prop, the grouting pipe and the single hydraulic prop are bound together, and the single hydraulic prop, the chassis, the umbrella-shaped top and the grouting pipe are arranged in the flexible bag. The beneficial effects of the utility model are that can be safe, high-efficient, low-cost processing colliery roof fall accident.

Description

Umbrella-shaped top-hat support bag

Technical Field

The utility model particularly relates to an umbrella-type rises and props up bag belongs to coal mining technical field.

Background

The existing coal mine roof fall accident treatment method generally adopts a wood pile roof-contacting method for treatment, but the method has a plurality of disadvantages.

Firstly, the method comprises the following steps: is very dangerous and very easy to cause casualty accidents.

Secondly, the method comprises the following steps: low efficiency and long time for dealing with roof fall accidents, sometimes as many as several days.

Thirdly, the method comprises the following steps: the cost is high, the time for processing roof fall accidents is long, the consumed manpower, material resources and financial resources are large, and great direct and indirect economic losses are caused to the coal mine enterprises.

Disclosure of Invention

An object of the utility model is to provide a new supporting mode of handling colliery roof fall accident for overcoming the above-mentioned problem that exists among the prior art of production, and provide a simple structure ingenious, can drop into production, safe, the low-cost supporting mode of high efficiency.

The structure of the utility model comprises a single hydraulic prop 3, a flexible bag 5, a chassis 4, an umbrella-shaped top 1 and a grouting pipe 2.

The utility model discloses a following technical scheme realizes, the hydraulic prop of its characterized in that hydraulic prop adopts the hydraulic prop 3 of the glass steel material that has now among the coal mining machinery to this lightens transport weight and reduce cost. The flexible bag 5 may be made of a material having a certain elasticity and a relatively high strength. The umbrella-shaped top 1 is produced by adopting an umbrella-shaped structure, the single hydraulic prop 3 supports the middle of the umbrella-shaped top 1 and then rises, and the single hydraulic prop 3 is equivalent to an umbrella rod. The grouting pipe 2 is formed to be bent at the top and the outlet is downward so as to facilitate grouting, the grouting pipe 2 is tied with the single hydraulic prop 3, and the umbrella-shaped top 1 is fixed with the flexible bag 5 so as to be convenient to use.

The method is characterized in that the existing grouting pump in the coal mine machinery is used for injecting quick-setting concrete into the flexible bag 5 through the grouting pipe 2, the concrete is injected into the flexible bag 5 and is stopped after the flexible bag is swelled and completely contacted with the coal wall, and after the quick-setting concrete in the flexible bag 5 is solidified, the umbrella-shaped roof-fall supporting bag forms a new stable stress balance structure with the coal wall, the top plate and the hydraulic support. If the hydraulic support of working face roof fall when many, can put out a word above the support of roof fall the utility model discloses, and the distance each other will paste tightly, wait after the concrete solidification of injection the utility model discloses will with coal wall, roof, hydraulic support, adjacent form new firm structure between the utility model, reach the force balance once more, the hydraulic support of working face just can take the area to move the frame as early as possible through the roof fall region.

The utility model has the advantages of can be under the operating condition of safety high efficiency low cost handle colliery roof fall accident.

Description of the drawings:

FIG. 1 is a schematic view of an umbrella-shaped top-hat support bag

FIG. 2 is a schematic view of an umbrella roof support bag on a coal face

FIG. 3 is a schematic view of the top front and bottom of an umbrella in an umbrella-shaped roof-fall support bag

FIG. 4 is a schematic side view of an umbrella top in an umbrella roof-fall support bag

FIG. 5 is a schematic diagram of a single hydraulic prop in an umbrella-shaped roof-fall support bag

FIG. 6 is a schematic front view of a bottom plate in an umbrella-shaped roof-fall support bag

FIG. 7 is a cross-sectional view of the chassis along line ab in the umbrella-shaped cap support bag

FIG. 8 is a schematic view of a flexible bag in an umbrella-shaped roof-fall support bag

FIG. 9 is a schematic diagram of the combination of an umbrella-shaped top and a single hydraulic prop in an umbrella-shaped roof-fall support bag

FIG. 10 is a schematic view of a grouting pipe in an umbrella-shaped roof-fall support bag

In the figure: 1. umbrella-shaped top, 2 grouting pipes, 3 single hydraulic prop, 4 chassis, 5 flexible bag and 6 grouting holes

7. Single hydraulic prop place, 8. liquid filling hole, 9 outlet

The specific implementation mode is as follows:

the utility model discloses a do further detailed description below with the accompanying drawing, place earlier on the hydraulic support for the safe position below the hydraulic support of roof fall as shown in figure 2 flexible bag 5 and umbelliform top 1 in the utility model, personnel get into the intermediate position of placing chassis 4 bottom the inside of flexible bag 5 from export 9, and reuse hydraulic prop 3 holds in the middle of umbelliform top 1, then places hydraulic prop 3 on the hydraulic prop of chassis 4 places 7.

The single hydraulic prop 3 is filled with liquid through the liquid filling hole 8 to be lifted to a required height, after the liquid filling is finished, the flexible bag 5 is cut into an opening which can enter and exit the grouting pipe 2 at the grouting hole 6 of the chassis 4, at this time, a person can immediately come out from the outlet 9, and then the outlet 9 is fixed to prevent the concrete from jumping out. Because the hydraulic prop 3 and the umbrella top 1, the flexible bag 5 are together, the umbrella top 1 and the flexible bag 5 will also be lifted when the hydraulic prop 3 is lifted. The quick-setting concrete is injected into the grouting pipe 2 through the chassis grouting hole 6, and the concrete is stopped after the flexible bag 5 is swelled and the coal wall is completely contacted, because the grouting pipe 2 is downward with a bent opening, the injected quick-setting concrete is gradually filled from the bottom of the flexible bag 5 and slowly ascends until the whole flexible bag 5 is filled.

After the quick-setting concrete in the flexible bag 5 is solidified, the umbrella-shaped roof-fall supporting bag, the coal wall, the top plate and the hydraulic support form a new stable stress balance structure. At this time, the hydraulic support rack puller on the working face must rapidly pull the hydraulic support rack to pass through the roof fall area as soon as possible. When the working face had the large tracts of land roof fall, can put umbrella-type roof fall support bag word on hydraulic support, after rapid hardening concrete among the flexible bag 5 solidifies like this, the utility model discloses will with coal wall, roof, hydraulic support, adjacent the utility model discloses between form new firm atress balanced structure, the hydraulic support of working face just can take the area to move the frame as early as possible through the roof fall region.

Claims

1. An umbrella-shaped top-hat support bag is characterized in that: the single hydraulic prop (3) supports the middle of the umbrella-shaped top (1), and the umbrella-shaped top (1) can also be lifted when the single hydraulic prop (3) is lifted.

2. The umbrella-shaped roof support bag of claim 1, wherein: the grouting pipes (2) are bound on the single hydraulic prop (3), the upper parts of the grouting pipes (2) are provided with downward bent outlets, and the grouting pipes (2) and the single hydraulic prop (3) are placed at corresponding positions on the chassis (4).

3. The umbrella-shaped roof support bag of claim 1, wherein: the flexible bag (5) is connected with the umbrella-shaped top (1), and the umbrella-shaped top (1), the single hydraulic prop (3), the grouting pipe (2) and the chassis (4) are all arranged in the flexible bag (5).

4. The umbrella-shaped roof support bag of claim 1, wherein: the single hydraulic prop (3) is made of glass fiber reinforced plastic.