CN218624250U

CN218624250U - Slip casting plugging device

Info

Publication number: CN218624250U
Application number: CN202223076490.2U
Authority: CN
Inventors: 丁洋洋; 刘腾达; 付伟奇; 唐张圆; 杨威
Original assignee: No 1 Engineering Co Ltd of CCCC First Highway Engineering Co Ltd
Current assignee: No 1 Engineering Co Ltd of CCCC First Highway Engineering Co Ltd
Priority date: 2022-11-18
Filing date: 2022-11-18
Publication date: 2023-03-14
Anticipated expiration: 2032-11-18

Abstract

The utility model relates to a tunnel construction equipment technical field, concretely relates to slip casting plugging device, the utility model provides a slip casting plugging device, include: the device comprises a first pipe, a second pipe, a conical head, a conversion cylinder, a positioning piece and a ball valve assembly. Wherein the first pipe is used for transporting slurry; the second pipe is coaxially arranged in the first pipe and is used for transporting slurry; the conical head is fixedly installed along the axial direction of the first pipe; the conversion cylinder is arranged at one end of the first pipe, which is away from the conical head; the positioning piece is used for connecting the inner wall of the conversion cylinder and the outer wall of the second pipe; the ball valve assembly is arranged in the inner cavity of the conversion cylinder and is arranged at one end of the second pipe, which is away from the conical head; the ball valve assembly has a first state for controlling the flow of the slurry into the first pipe and the second pipe through the switching cylinder, and a second state for controlling the flow of the slurry into the second pipe. The adjustment of the slurry transportation state is realized by adjusting the communication state of the ball valve assembly, the first pipe and the second pipe, so that the grouting efficiency is improved.

Description

Slip casting plugging device

Technical Field

The utility model relates to a tunnel construction equipment technical field, concretely relates to slip casting plugging device.

Background

The mountainous area tunnel is an important traffic facility and is a 'bridge' for vehicles to cross mountains. Because the water-retaining wall is buried in the stratum, the water-retaining wall is easily influenced by hydrogeology, natural conditions and the like, and is often confronted with disaster problems such as water leakage, rock mass slippage and the like in the later operation process, thereby causing traffic safety hidden dangers. Aiming at the problem of waterproof and leaking stoppage of the cracks of the tunnel, the most common solution at present is to realize leaking stoppage by grouting the cracks in the rock body.

Traditional slip casting device generally stretches into the grout that crack department injected into can solidify with the grout mouth, then can realize the packing to the crack after waiting for the grout solidification to the realization is to the leaking stoppage in tunnel gap, wherein the grout outlet of traditional slip casting pipe only has one, carries out slip casting filling operation to the gap through a grout outlet.

The grouting filling is carried out through one grout outlet, the grouting pressure provided in the grouting space is limited, the deep filling of the gap is not facilitated, the grouting duration is long, the rock gap is difficult to fill in a short time, the contact time between the tail end of the grouting pipe and the bottom of the rock grouting hole is long, and the grout outlet is blocked by grout, so that the grouting efficiency is reduced; and when the grouting pipe is separated from the rock mass grouting hole, a part of grout flows outwards, and the outflow part needs to be supplemented, so that the grouting efficiency is influenced.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model discloses the technical problem that solve traditional slip casting device's grout outlet only has one can influence the defect of slip casting efficiency to a slip casting plugging device is provided.

In order to solve the problem, the utility model provides a

The utility model has the advantages of it is following:

1. the utility model provides a slip casting plugging device, include: the device comprises a first pipe, a second pipe, a conical head, a conversion cylinder, a positioning piece and a ball valve assembly. Wherein the first pipe is used for transporting slurry; the second pipe is coaxially arranged in the first pipe and is used for transporting slurry; the conical head is fixedly arranged along the axial direction of the first pipe; the conversion cylinder is arranged at one end of the first pipe, which is away from the conical head; the positioning piece is used for connecting the inner wall of the conversion cylinder and the outer wall of the second pipe; the ball valve assembly is arranged in the inner cavity of the conversion cylinder and is arranged at one end of the second pipe, which is away from the conical head; the ball valve assembly has a first state for controlling the flow of the slurry into the first pipe and the second pipe through the switching cylinder, and a second state for controlling the flow of the slurry into the second pipe.

The grouting plugging device with the structure realizes the adjustment of the slurry transportation state by adjusting the communication state of the ball valve assembly, the first pipe and the second pipe, when the grouting hole needs to be filled by using large grouting pressure, the grouting plugging device is adjusted to the first state, and the first pipe and the second pipe can drive the conical head to inject slurry into the grouting hole for filling; when the grouting operation needs to be completed and the grouting plugging device and the grouting hole need to be separated, the grouting plugging device is adjusted to be in the second state, and at the moment, the second pipe can drive the conical head to slowly inject grout into the grouting hole, so that the moving-out part of the grouting plugging device is filled.

2. The utility model provides a slip casting plugging device, include: the second hole, the second hole is the through-hole of the inside sunken setting along the periphery wall of first pipe.

The slip casting plugging device of this structure can be with the thick liquid injection slip casting hole in the device through the second hole, and evenly distributed's a plurality of second holes can evenly pour into the slip casting hole with the thick liquid to improve slip casting pressure and realize the packing to the gap depths, and can improve slip casting efficiency, it is long when shortening the slip casting.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of an internal structure of a grouting plugging device according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a main body of the grouting plugging device provided by the embodiment of the present invention;

fig. 3 is a schematic structural view of the grouting plugging device provided by the embodiment of the present invention in an initial state during construction in a rock mass;

fig. 4 is a schematic structural view of the grouting plugging device provided by the embodiment of the invention in a termination state during construction in a rock mass;

fig. 5 is a side view of a main structure of a grouting plugging device provided in an embodiment of the present invention;

fig. 6 is a schematic diagram of an internal structure of a conversion cylinder according to an embodiment of the present invention;

description of reference numerals:

1. a conical head; 101. a first hole;

2. a first tube; 201. a second hole;

3. a second tube;

4. a baffle plate;

5. a conversion cylinder;

6. a positioning member;

7. a ball valve assembly; 701. a switch; 702. a ball valve body; 703. a second circular hole; 704. a first circular hole;

8. a third tube;

9. a rock mass;

10. and (4) grouting holes.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Examples

The embodiment provides a grouting plugging device, as shown in fig. 1 to 6, comprising: a first tube 2, a second tube 3, a conical head 1, a transition cylinder 5, a spacer 6 and a ball valve assembly 7. Wherein the first pipe 2 is used for transporting slurry; a second pipe 3 is coaxially installed within the first pipe 2 and is used for transporting slurry; the conical head 1 is fixedly arranged along the axial direction of the first pipe 2; the conversion cylinder 5 is arranged at one end of the first pipe 2, which is far away from the conical head 1; the positioning piece 6 is used for connecting the inner wall of the conversion cylinder 5 and the outer wall of the second pipe 3; the ball valve assembly is arranged in the inner cavity of the conversion cylinder 5 and is arranged at one end of the second pipe 3, which is far away from the conical head 1; the ball valve assembly 7 has a first state of controlling the flow of the slurry into the first pipe 2 and the second pipe 3 through the switching cylinder 5, and a second state of controlling the flow of the slurry into the second pipe 3.

The grouting plugging device with the structure realizes the adjustment of the slurry transportation state by adjusting the communication state of the ball valve assembly 7, the first pipe 2 and the second pipe 3, and when a grouting hole needs to be filled by large grouting pressure, the grouting plugging device is adjusted to a first state, and at the moment, the first pipe 2 and the second pipe 3 can drive the conical head 1 to inject slurry into the grouting hole for filling; when the grouting operation is completed and the grouting plugging device and the grouting hole need to be separated, the grouting plugging device and the grouting hole are adjusted to be in the second state, at the moment, the second pipe 3 can drive the conical head 1 to slowly inject grout into the grouting hole, and therefore the moving-out part of the grouting plugging device is filled.

As shown in fig. 1 to 4, in the present embodiment, the first tube 2 is a circular tube, and the second tube 3 is coaxially disposed in the circular tube, and in other embodiments, the shape of the first tube 2 is not limited, and may be a square tube or a hexagonal tube, and when the first tube 2 is a square tube, the second tube 3 is coaxially disposed in the square tube, and when the first tube 2 is a hexagonal tube, the second tube 3 is coaxially disposed in the hexagonal tube; the shape of the first pipe 2 is not limited, and only the transportation of the slurry is required.

As shown in fig. 1 to 4, in the present embodiment, the first tube 2 is provided with the second holes 201, the second holes 201 are through holes recessed inwards along the outer peripheral wall of the first tube 2, the second holes 201 are arranged on the first tube 2 at intervals, the size and number of the second holes 201 are not limited, and it is only necessary to ensure that the slurry can flow out from the second holes 201 to the grouting holes.

As shown in fig. 1 to 5, in the present embodiment, the conical head 1 is provided with first holes 101, the first holes 101 are through holes recessed inwards along the conical surface of the conical head 1, the through holes are four and distributed in a cross shape, in other embodiments, three or six through holes may be provided, and when three through holes are provided, the three through holes are distributed in a triangular shape at the conical surface of the conical head 1; when six through holes are arranged, the six through holes are distributed in a hexagonal shape on the conical surface of the conical head 1; the number of the through holes is not limited, and only the fact that the slurry can flow to the inside of the grouting hole through the through holes is guaranteed.

As shown in fig. 1 to 6, in the present embodiment, the ball valve assembly 7 includes: a ball valve body 702, a switch 701, a first round hole 704 and a second round hole 703; the ball valve body 702 is rotatably mounted in the inner cavity of the conversion cylinder 5; the mounting end of the switch 701 is mounted on the ball valve body 702, the connecting end of the switch 701 penetrates through the conversion cylinder 5, and the switch 701 is used for driving the ball valve body 702 to axially rotate around the inner cavity of the conversion cylinder 5; a first circular hole 704 is arranged on the ball valve body 702 in a penetrating way; the second circular hole 703 is arranged on the ball valve body 702 in a penetrating manner, and the axis of the first circular hole 704 and the axis of the second circular hole 703 are in the same horizontal plane. The first round hole 704 and the second round hole 703 are arranged at an angle of 90 degrees, in other embodiments, the first round hole 704 and the second round hole 703 are arranged at an angle of 60 degrees or at an angle of 45 degrees, and an included angle between the first round hole 704 and the second round hole 703 is not limited, so that the ball valve body 702 can be driven to rotate in the inner cavity of the conversion cylinder 5 and the adjustment of the first state and the second state can be realized only by ensuring the adjustment switch 701.

As shown in fig. 1 to 6, in the present embodiment, in the first state, the first circular hole 704 communicates with the inner cavity of the conversion cylinder 5; in the second state, the second circular hole 703 is in communication with the lumen of the second tube 3. In the first state, the first round hole 704 is communicated with the conversion cylinder 5, and the slurry flows into the conversion cylinder 5 through the first round hole 704 and is transported to the grouting hole through the first pipe 2 and the second pipe 3; in the second state, the second circular hole 703 is communicated with the inner cavity of the second pipe 3, and the slurry is transported to the second pipe 3 through the second circular hole 703; the slurry transportation position can be switched by changing the communication state of the first round hole 704 and the second round hole 703.

As shown in fig. 1 to 6, in the present embodiment, the diameter of the second circular hole 703 is smaller than or equal to the inner diameter of the second pipe 3, and the diameter of the second circular hole 703 is smaller than or equal to the inner diameter of the second pipe 3, so that the slurry can be directly transported to the second pipe 3 after passing through the second circular hole 703, thereby preventing the slurry from leaking into the conversion cylinder 5.

As shown in fig. 1 to 6, in the present embodiment, the diameter of the first circular hole 704 is smaller than or equal to the inner diameter of the conversion cylinder 5, so as to avoid the slurry passing through the first circular hole 704 from being blocked in the inner cavity of the conversion cylinder 5, which causes solidification and affects the grouting efficiency.

As shown in fig. 1, 3 and 4, in the present embodiment, the positioning member 6 is a positioning piece, one end of which is fixedly installed along the axial direction of the inner cavity wall of the conversion cylinder 5, and the other end of which is fixedly installed along the axial direction of the outer sidewall of the second tube 3. The positioning sheets are provided with four positioning sheets, every two of the four positioning sheets are vertically arranged, in other embodiments, the positioning sheets can be provided with three or two positioning sheets, and when the positioning sheets are provided with three positioning sheets, the three positioning sheets are arranged in a 120-degree included angle mode; when two positioning sheets are arranged, the two positioning sheets are arranged at an included angle of 180 degrees; the number of the positioning pieces is not limited, and only the conversion cylinder 5 and the second tube 3 can be fixed.

As shown in fig. 1 to 4, in the present embodiment, a baffle 4 is slidably mounted on an outer wall of the first pipe 2, the baffle 4 is a circular baffle, and the diameter of the circular baffle is larger than that of the grouting hole, so that the outflow of slurry caused when the first pipe 2 and the grouting hole are separated is reduced; in other embodiments, the baffle 4 is a square baffle or an irregular baffle, the shape of the baffle 4 is not limited, and only the diameter larger than the grouting hole is required to be ensured and the grouting hole can be covered to prevent the slurry from flowing outwards in the separation stage.

As shown in fig. 1 to 4, in the present embodiment, a third tube 8 is installed at an end of the conversion cylinder 5 away from the first tube 2, and the third tube 8 is embedded in the inner cavity of the conversion cylinder 5.

When the water leakage position of the tunnel is determined, firstly, a grouting hole 10 is pre-drilled on a determined rock mass 9 through drilling equipment, a baffle 4 on the grouting plugging device is pushed to one end of a conversion cylinder 5, then a conical head 1 is pushed to the hole bottom of the grouting hole 10, the baffle 4 is pushed to the hole opening of the grouting hole 10 and is pressed by force, and the outflow of slurry in the grouting process is reduced. And (3) turning a switch 701 of the ball valve assembly 7 to open the first round hole 704 to control the external slurry inlet equipment to start grouting through the third pipe 8. Grout enters the rock body crack through the second holes 201 around the first pipe 2 and the first holes 101 in the conical head 1, and the pressure is maintained for 10min when the grout pressure of external grout inlet equipment reaches a preset value, so that the grout is fully filled in the rock body crack. Then, the switch 701 of the rotating ball valve assembly 7 is adjusted to a second round hole 703, at this time, the grout only flows into the second pipe 3, the conical head 1 is slowly pulled out, during the period, the retaining plate 4 is kept to press the opening of the grouting hole 10, when the bottom surface of the conical head 1 reaches the opening retaining plate 4, the pressure is also kept for 10min, so that the grout is further supplemented into the rock body crack and the grout lost by outflow in the device pulling-out process is further supplemented, and the crack filling rate is improved. After the pressure maintaining is finished, the device can be removed, and the grouting plugging work is finished.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims

1. A grouting plugging device is characterized by comprising:

a first pipe (2), said first pipe (2) being adapted to transport a slurry;

a second pipe (3), said second pipe (3) being coaxially arranged within said first pipe (2), said second pipe (3) being adapted to transport a slurry;

the conical head (1), the conical head (1) is fixedly arranged along the axial direction of the first pipe (2);

the conversion cylinder (5), the conversion cylinder (5) is fixedly connected with one end of the first pipe (2) departing from the conical head (1);

a positioning element (6), said positioning element (6) being adapted to connect an inner wall of said conversion drum (5) and an outer wall of said second tube (3);

a ball valve assembly (7), wherein the ball valve assembly (7) is arranged in the inner cavity of the conversion cylinder (5), and the ball valve assembly (7) is arranged at one end of the second pipe (3) facing away from the conical head (1);

wherein the ball valve assembly (7) has a first state for controlling the flow of the slurry into the first pipe (2) and the second pipe (3) through the switching cylinder (5), and a second state for controlling the flow of the slurry into the second pipe (3).

2. The grouting plugging device according to claim 1, further comprising: a second hole (201), the second hole (201) being a through hole provided so as to be recessed inward along the outer peripheral wall of the first tube (2).

3. The grouting plugging device according to claim 1, further comprising: the first hole (101) is a through hole which is formed by inwards recessing along the conical surface of the conical head (1).

4. Grouting plugging device according to claim 1, characterized in that said ball valve assembly (7) comprises: the ball valve comprises a ball valve body (702), a switch (701), a first round hole (704) and a second round hole (703);

the ball valve body (702) is rotatably arranged in the inner cavity of the conversion cylinder (5);

the mounting end of the switch (701) is fixedly connected to the ball valve body (702), the connecting end of the switch (701) penetrates through the conversion cylinder (5), and the switch (701) is suitable for driving the ball valve body (702) to axially rotate around the inner cavity of the conversion cylinder (5);

the first round hole (704) is arranged on the ball valve body (702) in a penetrating mode;

the second round hole (703) penetrates through the ball valve body (702), and the axis of the first round hole (704) and the axis of the second round hole (703) are in the same horizontal plane.

5. The grouting plugging device according to claim 4, characterized in that in a first state, the first circular hole (704) communicates with the inner cavity of the transition cylinder (5);

in a second state, the second circular hole (703) is communicated with the inner cavity of the second pipe (3).

6. Grouting plugging device according to claim 4, characterized in that the diameter of the second circular hole (703) is equal to or less than the inner diameter of the second pipe (3).

7. The grouting plugging device according to claim 4, characterized in that the diameter of the first circular hole (704) is equal to or less than the inner diameter of the transition cylinder (5).

8. The grouting plugging device according to claim 1, wherein the positioning member (6) is a positioning piece, one end of the positioning piece is fixedly arranged along the axial direction of the inner cavity wall of the conversion cylinder (5), and the other end of the positioning piece is fixedly arranged along the axial direction of the outer side wall of the second pipe (3).

9. The grouting plugging device according to any one of claims 1 to 6, further comprising: the baffle (4) is connected to the outer wall of the first pipe (2) in a sliding mode.

10. The grouting plugging device according to any one of claims 1 to 6, further comprising: and the third pipe (8), wherein the third pipe (8) is fixedly connected to one end of the conversion cylinder (5) deviating from the first pipe (2).