Flexible plugging wall for abandoned roadway and one-way flow limiting assembly

Abstract

The invention belongs to the technical field of roadway plugging, and particularly provides a flexible plugging wall for an abandoned roadway and a one-way flow limiting assembly.The flexible plugging wall for the abandoned roadway comprises a wall body unit, a pipe penetrating mechanism, an input connector and a hanging ring, and the wall body unit is of a bag-shaped structure; a plurality of pipe insertion openings and a plurality of pipe insertion heads are alternately arranged on the side walls of the wall body units; the one-way flow limiting assembly comprises an outer sleeve shell and an inner sleeve shell. According to the scheme, the prefabricated and formed wall body units serve as minimum modules, the wall body is formed in the mode that the multiple wall body units are spliced, the customized relation between the boundary dimension of the blocking wall and roadway specification binding is weakened, and good universality is achieved; according to the scheme, the pipe penetrating mechanism is adopted as a reserved hole, the pipe penetrating mechanism can be deployed at any joint, the problem that the hole in the pipe laying position needs to be reserved in the manufacturing link is solved, and the universality of the product is further improved; the one-way current limiting assembly is simple in structure and has extremely high stability.

Description

Technical Field

[0001] The invention belongs to the technical field of tunnel blocking, and in particular provides a flexible blocking wall and a one-way current limiting component for an abandoned tunnel. Background Art

[0002] Tailings filling operation in underground mines refers to a method of transporting the waste tailings produced after the ore is crushed and screened to the underground goaf for filling through a specific filling system. During the construction process, it is necessary to first set up blocking walls at both ends of the filling area to form a closed bearing space, and then fill the bearing space.

[0003] At present, the conventional construction method of blocking walls is brickwork, and after forming a bearing space, concrete or yellow mud and other fillers are poured into the middle to form a blocking wall. In recent years, there have also been application cases of modular blocking walls and filling plugs. Among them, although the filling plug has the advantages of flexible use and small handling volume, the wall shape needs to be customized according to the size of the lane, and the holes at the pipe routing position also need to be reserved in the manufacturing process, which is not universal. Summary of the invention

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a flexible blocking wall for abandoned tunnels, including a wall unit, a pipe-penetrating mechanism, an input interface and a hanging ring, the wall unit is a sac-like structure, a plurality of wall units are fixedly connected to each other, and a wall is formed after filling and expansion, the pipe-penetrating mechanism is arranged at the joints of the plurality of wall units, after expansion, the plurality of wall units respectively apply pressure to the pipe-penetrating mechanism from different directions to achieve the fixation of the pipe-penetrating mechanism, the input interface is arranged on the side wall of any one of the wall units, and a plurality of hanging rings are arranged on the outer edge of the wall;

[0005] The side walls of the wall units are alternately provided with a plurality of pipe sockets and a plurality of pipe plugs, and a conical block is provided at the end of the pipe plug. The pipe plug is locked after being inserted into the pipe socket, so that the plurality of wall units are fixedly connected to each other, and the plurality of wall units are interconnected, and the interiors of the pipe sockets and the pipe plugs are both equipped with one-way current limiting components.

[0006] Furthermore, the tube threading mechanism includes a sleeve shell, a sliding hole, a pressure block, a first baffle and a second baffle. The sleeve shell is a cylindrical structure, and a plurality of sliding holes are radially opened on the side wall of the sleeve shell in a centrally symmetrical manner. A plurality of pressure blocks are slidably installed in the plurality of sliding holes in a one-to-one correspondence. The first baffle and the second baffle are both fan-shaped. A plurality of first baffles and a plurality of second baffles are alternately arranged at the port of the sleeve shell, and the plurality of first baffles and a plurality of second baffles are respectively fixedly connected to the corresponding pressure blocks.

[0007] Furthermore, a forward chamfer is provided on the radial side wall of the first baffle, and a backward chamfer is provided on the radial side wall of the second baffle. When the first baffle and the second baffle gather inward, the chamfered surfaces of the first baffle and the second baffle contact each other, driving the first baffle and the second baffle to stagger.

[0008] Furthermore, a conical piece is integrally formed on the inner arc surface of the first baffle and the second baffle.

[0009] Furthermore, the chamfered surfaces of the first baffle and the second baffle are both provided with outwardly extending limiting flanges.

[0010] The one-way current limiting component comprises an outer shell and an inner shell, both of which are cylindrical, wherein both ends of the outer shell are open, one end of the inner shell is open, and the other end is a closed ball head;

[0011] The outer shell is sleeved on the outside of the inner shell, and a plurality of claws are arranged on the end surface of the outer shell. The claws are in an arc shape bending inwards, and their curvature matches the curvature of the ball head. The claws and the ball head are located on the same side, a through hole is opened on the side wall of the outer shell, and a push rod is coaxially arranged at the center of the inner shell.

[0012] Furthermore, positioning grooves are provided on the side wall of the inner shell, and the number and positions of the positioning grooves correspond to the number and positions of the claws.

[0013] Furthermore, the one-way current limiting component also includes a connecting rod, both ends of the connecting rod are provided with a push rod slot, and the connecting rod is sleeved on the push rod through the push rod slot.

[0014] Furthermore, a slide groove is provided on the inner wall of the outer shell, and a slider is provided on the outer wall of the inner shell, and the slider slides in the slide groove.

[0015] Furthermore, a thread is provided on the outer side wall of the outer shell, and the thread is located at the opposite side of the claw;

[0016] The pipe plug and the pipe socket are both fixedly connected to the corresponding one-way current limiting assembly by means of threaded connection.

[0017] The beneficial effects of using the present invention are:

[0018] This solution uses prefabricated wall units as the smallest module, and forms a wall by splicing multiple wall units, which weakens the customization relationship between the external dimensions of the blocking wall and the specifications of the laneway, and has good versatility;

[0019] This solution uses a pipe-penetrating mechanism as a reserved hole. Since the joints of multiple wall units are not closed before expansion, the pipe-penetrating mechanism can be deployed at any joint, solving the problem that the holes at the pipe-running position need to be reserved in the manufacturing process, further improving the versatility of the product.

[0020] This solution uses pipe sockets and pipe plugs to achieve connection and connectivity between wall units, and uses a one-way current limiting component to ensure the sealing effect of the pipe sockets and pipe plugs when they are not plugged in;

[0021] The one-way current limiting component has a simple structure and extremely strong stability. It is not disturbed by fillers during use. Even if the wall is already in a filled and expanded state, new wall units can still be spliced, making the use of the wall units more flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2 Another structural schematic diagram of the present invention;

[0024] Figure 3 It is a structural schematic diagram of the pipe threading mechanism of the present invention;

[0025] Figure 4 An exploded view of the pipe threading mechanism of the present invention;

[0026] Figure 5 for Figure 4 The enlarged view of point a in the middle;

[0027] Figure 6 It is a schematic diagram of the structure after the pipe socket and the pipe plug of the present invention are plugged in;

[0028] Figure 7 An exploded view of the pipe socket, the pipe plug and the one-way current limiting assembly of the present invention;

[0029] Figure 8 An exploded view of the one-way current limiting component of the present invention;

[0030] Fig. 9 It is an axial section view of the pipe socket, the pipe plug and the one-way current limiting assembly of the present invention;

[0031] Reference numerals include:

[0032] 1. Wall unit;

[0033] 2. Pipe-threading mechanism; 201. Shell; 202. Sliding hole; 203. Pressing block; 204. First baffle; 205. Second baffle; 206. Conical sheet; 207. Position-limiting flange;

[0034] 3. Input interface; 4. Hanging ring; 5. Pipe socket; 6. Pipe plug;

[0035] 7. One-way current limiting assembly; 701. Outer shell; 702. Inner shell; 703. Connecting rod; 704. Clamping claw; 705. Ball head; 706. Positioning groove; 707. Through hole; 708. Slide groove; 709. Sliding block; 710. Thread; 711. Push rod. DETAILED DESCRIPTION

[0036] The present invention is described in detail below with reference to the accompanying drawings.

[0037] Reference Figure 1 and Figure 2 A flexible blocking wall for abandoned tunnels, comprising a wall unit 1, a pipe insertion mechanism 2, an input interface 3 and a hanging ring 4, wherein the wall unit 1 is a sac-like structure, a plurality of wall units 1 are fixedly connected to each other, and a wall is formed after being filled and expanded, the pipe insertion mechanism 2 is arranged at the joints of the plurality of wall units 1, and after expansion, the plurality of wall units 1 apply pressure to the pipe insertion mechanism 2 from different directions respectively to fix the pipe insertion mechanism 2, the input interface 3 is arranged on the side wall of any one of the wall units 1, and a plurality of hanging rings 4 are arranged on the outer edge of the wall;

[0038] A plurality of pipe sockets 5 and a plurality of pipe plugs 6 are alternately arranged on the side wall of the wall unit 1. A conical block is arranged at the end of the pipe plug 6. The pipe plug 6 is locked after being inserted into the pipe socket 5, so that the plurality of wall units 1 are fixedly connected to each other and the plurality of wall units 1 are interconnected. The interior of the pipe socket 5 and the pipe plug 6 are both equipped with a one-way current limiting component 7.

[0039] Embodiment 2

[0040] Compared with the first embodiment, the present embodiment is different in that:

[0041] Reference Figure 3-Figure 5 Specifically, the tube-threading mechanism 2 includes a casing 201, a sliding hole 202, a pressing block 203, a first baffle 204, and a second baffle 205. The casing 201 is a cylindrical structure. A plurality of sliding holes 202 are radially opened on the side wall of the casing 201 in a centrally symmetrical manner. A plurality of pressing blocks 203 are slidably installed in the plurality of sliding holes 202 in a one-to-one correspondence. The first baffle 204 and the second baffle 205 are both fan-shaped. The plurality of first baffles 204 and the plurality of second baffles 205 are alternately arranged on the casing 201. At the port of the housing 201, a plurality of first baffles 204 and a plurality of second baffles 205 are respectively fixedly connected to the corresponding pressing blocks 203, a forward chamfer is provided on the radial side wall of the first baffle 204, and a backward chamfer is provided on the radial side wall of the second baffle 205. When the first baffle 204 and the second baffle 205 gather inward, the chamfered inclined surfaces of the first baffle 204 and the second baffle 205 contact each other, driving the first baffle 204 and the second baffle 205 to stagger.

[0042] Conical pieces 206 are integrally formed on the inner arc surfaces of the first blocking piece 204 and the second blocking piece 205 .

[0043] The first blocking piece 204 and the second blocking piece 205 are both provided with outwardly extending limiting flanges 207 on the chamfered surfaces.

[0044] After the construction personnel complete the assembly of the wall unit 1, they arrange one or more pipe-threading mechanisms 2 between the wall units 1 at designated locations according to the pipeline deployment requirements;

[0045] Anchor rods are driven into the tunnel wall at the wall deployment position, cables are threaded through the hanging rings 4, and the cables are tied to the anchor rods, and the pipes are passed through the corresponding pipe threading mechanisms 2 to complete the preliminary fixation of the wall;

[0046] Connect the external gas injection or grouting equipment to the input interface 3, start the equipment to fill the wall unit 1, and during the expansion process of the wall unit 1, apply pressure to the pipe-threading mechanism 2, push the pressing block 203 to slide inward, and the first baffle 204 and the second baffle 205 gather inward, shrink the aperture in the center of the first baffle 204 and the second baffle 205, and hold the pipe passing through the casing 201;

[0047] According to specific sealing performance requirements, materials such as potting glue or foam glue can be filled into the casing 201 to further improve the sealing effect.

[0048] Embodiment 3

[0049] This embodiment discloses a unidirectional current limiting component, which is applied in the first embodiment or the second embodiment, and is specifically as follows:

[0050] Reference Figure 6-Figure 9 The one-way current limiting component 7 includes an outer shell 701 and an inner shell 702, both of which are cylindrical, wherein both ends of the outer shell 701 are open, one end of the inner shell 702 is open, and the other end is a closed ball head 705;

[0051] The outer shell 701 is sleeved on the outside of the inner shell 702. A plurality of claws 704 are arranged on the end face of the outer shell 701. The claws 704 are arc-shaped and bend inwardly, and their curvature matches the curvature of the ball head 705. The claws 704 and the ball head 705 are located on the same side. A through hole 707 is opened on the side wall of the outer shell 701, and a push rod 711 is coaxially arranged in the center of the inner shell 702.

[0052] Positioning grooves 706 are provided on the side wall of the inner shell 702 , and the number and positions of the positioning grooves 706 correspond to the number and positions of the claws 704 .

[0053] When the pipe socket 5 and the pipe plug 6 are in a separated state, the one-way current limiting components 7 corresponding to the two are in a closed state, that is, the inner shell 702 is received in the outer shell 701, completely blocking the through holes 707 on both sides, the claws 704 are in a low deformation state, the inner wall of the claws 704 abuts against the arc surface of the ball head 705, and applies a small pressure to the surface of the ball head 705, constraining the inner shell 702 to keep it in a stable storage state, and the inner shell 702 applies positive pressure to the sealing ring at the bottom of the inner cavity of the outer shell 701 to ensure the sealing effect;

[0054] When the pipe plug 6 is inserted into the pipe socket 5, the top rods 711 of the two one-way current limiting components 7 abut against each other and push the inner shell 702 to move axially and gradually separate from the outer shell 701;

[0055] Until the pipe plug 6 is completely inserted into the pipe socket 5 and locked, the through hole 707 is completely open and the one-way current limiting component 7 is in an open state.

[0056] The one-way current limiting component 7 also includes a connecting rod 703 , both ends of which are provided with a push rod slot, and the connecting rod 703 is sleeved on the push rod 711 through the push rod slot, so as to extend the length of the push rod 711 .

[0057] A slide groove 708 is provided on the inner wall of the outer shell 701 , and a slider 709 is provided on the outer wall of the inner shell 702 . The slider 709 slides in the slide groove 708 .

[0058] A thread 710 is provided on the outer wall of the outer shell 701, and the thread 710 is located at the opposite side of the claw 704;

[0059] The pipe plug 6 and the pipe socket 5 are both fixedly connected to the corresponding one-way current limiting assembly 7 by means of threaded connection.

[0060] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, many changes can be made in the specific implementation methods and application scopes based on the ideas of the present invention. As long as these changes do not deviate from the concept of the present invention, they all belong to the protection scope of the present invention.

Claims

1. A flexible blocking wall for abandoned tunnels, characterized in that: It includes a wall unit, a pipe-penetrating mechanism, an input interface and a hanging ring. The wall unit is a sac-like structure. Multiple wall units are fixedly connected to each other and form a wall after being filled and expanded. The pipe-penetrating mechanism is arranged at the joints of multiple wall units. After expansion, multiple wall units apply pressure to the pipe-penetrating mechanism from different directions to fix the pipe-penetrating mechanism. The input interface is arranged on the side wall of any wall unit. Multiple hanging rings are arranged on the outer edge of the wall. The side walls of the wall units are alternately provided with a plurality of pipe sockets and a plurality of pipe plugs, and a conical block is provided at the end of the pipe plug. The pipe plug is locked after being inserted into the pipe socket, so that the plurality of wall units are fixedly connected to each other, and the plurality of wall units are interconnected, and the interiors of the pipe sockets and the pipe plugs are both equipped with one-way current limiting components.

2. A flexible blocking wall for abandoned tunnels according to claim 1, characterized in that: The tube threading mechanism includes a sleeve shell, a sliding hole, a pressure block, a first baffle and a second baffle. The sleeve shell is a cylindrical structure. A plurality of sliding holes are radially opened on the side wall of the sleeve shell in a centrally symmetrical manner. A plurality of pressure blocks are slidably installed in the plurality of sliding holes in a one-to-one correspondence. The first baffle and the second baffle are both fan-shaped. A plurality of first baffles and a plurality of second baffles are alternately arranged at the port of the sleeve shell, and the plurality of first baffles and a plurality of second baffles are respectively fixedly connected to the corresponding pressure blocks.

3. A flexible blocking wall for abandoned tunnels according to claim 3, characterized in that: The radial side wall of the first baffle is provided with a forward chamfer, and the radial side wall of the second baffle is provided with a backward chamfer. When the first baffle and the second baffle are gathered inward, the chamfered inclined surfaces of the first baffle and the second baffle contact each other, driving the first baffle and the second baffle to stagger.

4. A flexible blocking wall for abandoned tunnels according to claim 3, characterized in that: Conical pieces are integrally formed on the inner arc surfaces of the first blocking piece and the second blocking piece.

5. A flexible blocking wall for abandoned tunnels according to claim 4, characterized in that: The chamfered surfaces of the first baffle and the second baffle are both provided with outwardly extending limiting flanges.

6. A one-way current limiting component, applied to a flexible blocking wall for an abandoned tunnel as claimed in any one of claims 1 to 5, characterized in that: It includes an outer shell and an inner shell, both of which are cylindrical, wherein both ends of the outer shell are open, one end of the inner shell is open, and the other end is a closed ball head; The outer shell is sleeved on the outside of the inner shell, and a plurality of claws are arranged on the end surface of the outer shell. The claws are in an arc shape bending inwards, and their curvature matches the curvature of the ball head. The claws and the ball head are located on the same side, a through hole is opened on the side wall of the outer shell, and a push rod is coaxially arranged at the center of the inner shell.

7. The one-way current limiting assembly according to claim 6, characterized in that: Positioning grooves are provided on the side wall of the inner shell, and the number and positions of the positioning grooves correspond to the number and positions of the claws.

8. The one-way current limiting assembly according to claim 6, characterized in that: The one-way current limiting component also includes a connecting rod, both ends of the connecting rod are provided with a push rod slot, and the connecting rod is sleeved on the push rod through the push rod slot.

9. The one-way current limiting assembly according to claim 6, characterized in that: A slide groove is provided on the inner wall of the outer shell, and a slider is provided on the outer wall of the inner shell, and the slider slides in the slide groove.

10. The one-way current limiting assembly according to claim 6, characterized in that: The outer wall of the outer shell is provided with a thread, and the thread is located at the opposite side of the claw; The pipe plug and the pipe socket are both fixedly connected to the corresponding one-way current limiting assembly by means of threaded connection.

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