Quick and movable gangue blocking wall for filling gangue behind support

Abstract

The utility model relates to the technical field of coal mine filling mining, in particular to a fast and movable waste rock blocking wall for filling waste rock behind a support, and mainly solves the technical problems that an existing waste rock blocking wall is poor in structural stability, time-consuming and labor-consuming to build and poor in flexibility. The fast and movable type waste rock blocking wall comprises a bottom plate used for being attached to the ground of a roadway; the wall body assembly comprises a fixed wall body and spliced wall bodies, the bottom of the fixed wall body is hinged to the bottom plate, a hinged shaft is arranged in the width direction of the bottom plate, the number of the spliced wall bodies is at least one, the spliced wall bodies are detachably fixed to the upper portion of the fixed wall body, and the fixed wall body and all the spliced wall bodies form a complete wall body used for blocking waste rock; the supporting assembly comprises a telescopic rod and a locking piece, the telescopic rod is perpendicular to the width direction of the bottom plate, one end of the telescopic rod is hinged to the bottom plate, the other end of the telescopic rod is hinged to the fixed wall, and the locking piece is used for locking the length of the telescopic rod. The device is high in structural stability, easy and rapid to build and high in flexibility.

Description

Technical Field

[0001] This utility model relates to the field of coal mine backfilling technology, and in particular to a quick-moving retaining wall for backfilling gangue behind the support frame. Background Technology

[0002] In coal mine backfilling mining, as the hydraulic supports move forward, goaf areas will form behind the hydraulic supports. Goaf areas need to be filled with gangue to support the roof and control surface subsidence. The gangue needs to be blocked by retaining walls to prevent it from falling into other areas.

[0003] The existing retaining walls mainly include the following types:

[0004] The first type is the timber stack retaining wall, which is mainly built of wood. It has low strength and poor structural stability. The construction requires manual stacking, which is labor-intensive and inefficient. It is easily affected by the environment and requires frequent maintenance and replacement, which is costly. In addition, there are many gaps between the timber stacks, resulting in poor retaining effect. The gangue can easily slide and mix into the coal mining area, affecting safe production.

[0005] The second type is sandbag walls. Construction requires a lot of manpower to move sandbags. The underground working space is limited, the moving is difficult, it takes up a lot of manpower, the installation speed is slow, and the sandbags are easily damaged. They are affected by the squeezing, friction and sharp objects of gangue. After the filling material leaks, the gangue blocking effect decreases or even fails.

[0006] The third type is a concrete wall. Construction includes formwork installation, concrete pouring, curing, etc. It has a long cycle, poor underground construction conditions, and difficulties in material transportation, mixing and pouring, which further prolongs the construction period. Construction requires a large amount of materials, professional equipment and personnel, resulting in high costs. After completion, the location and shape are difficult to change, resulting in poor flexibility. Adjustments are difficult when the coal mining face advances, wasting resources and affecting production progress. Utility Model Content

[0007] To overcome the technical defects of existing retaining walls, such as poor structural stability, time-consuming and labor-intensive construction, and poor flexibility, this utility model provides a quick and movable retaining wall for backfilling with gangue after the frame is erected.

[0008] The present invention provides a quick-moving retaining wall for backfilling gangue after erection, comprising:

[0009] The base plate is used to adhere to the tunnel floor.

[0010] A wall assembly includes a fixed wall and a splicing wall. The bottom of the fixed wall is hinged to a base plate with the hinge axis arranged along the width direction of the base plate. The splicing wall has at least one piece and is detachably fixed above the fixed wall. The fixed wall and all the splicing walls form a complete wall for blocking coal.

[0011] A support assembly includes a telescopic rod and a locking element. The telescopic rod is perpendicular to the width direction of the base plate. One end of the telescopic rod is hinged to the base plate and the other end is hinged to a fixed wall. The locking element is used to lock the length of the telescopic rod.

[0012] Optionally, the spliced ​​wall includes a top wall section and a standard wall section;

[0013] The top surface of the fixed wall is provided with a first closed groove, and the bottom of the standard wall section is provided with a first protrusion. The first protrusion is embedded in the first closed groove and is fixed by a first bolt.

[0014] The top surface of the standard wall section is provided with a second closed groove, and the bottom of the top wall section is provided with a second protrusion. The second protrusion is embedded in the second closed groove and is fixed by a second bolt.

[0015] The fixed wall, standard wall section, and top wall section form a plane on one side used to block the coal.

[0016] Optionally, the base plate is provided with two hinge seats located at both ends in its width direction. The bottom of the fixed wall is provided with two connecting blocks corresponding to the two hinge seats. The connecting blocks are connected to the corresponding hinge seats through a hinge shaft. The base plate is also provided with a stop strip located between the two hinge seats. The stop strip is used to block the gap between the fixed wall and the base plate.

[0017] Optionally, the fixed wall has an installation groove, and one end of the telescopic rod is hinged in the installation groove.

[0018] Optionally, the telescopic rod includes a connecting cylinder and a connecting post. The connecting post is inserted into the connecting cylinder. The connecting post has multiple sets of first through holes distributed along its length. The connecting cylinder has a second through hole. The locking element is a bolt that passes through the first and second through holes.

[0019] The technical solution provided by this utility model has the following advantages compared with the prior art:

[0020] 1) The quick and movable retaining wall for backfilling gangue provided by this utility model adopts a combination structure of base plate, wall component and support component. On the one hand, the installation process is simple and convenient. On the other hand, the height of the overall structure can be reduced by shortening the telescopic rod of the support component, which is convenient for transportation and movement in narrow alley space and has strong flexibility.

[0021] 2) The quick-movable retaining wall for backfilling gangue provided by this utility model has a telescopic rod and locking component that can form a triangular frame structure with the base plate and fixed wall, which has strong structural stability and can withstand greater gangue pressure, effectively preventing the impact and compression of gangue.

[0022] 3) The quick-movable retaining wall for backfilling gangue provided by this utility model has two ends of the telescopic rod that are hinged to the base plate and the fixed wall respectively. The angle between the base plate and the fixed wall can be adjusted by adjusting the length of the telescopic rod, so that this device can be used to retain gangue on the roadway surface at different angles.

[0023] 4) The quick and movable retaining wall for backfilling gangue provided by this utility model consists of a fixed wall and a splicing wall. By installing different splicing walls, the height of the retaining wall can be adjusted, so that this device can be adapted to the retaining needs of working faces at different heights.

[0024] 5) The quick-movable retaining wall for backfilling gangue provided by this utility model is an integral assembly structure with simple structure, low cost, and easy inspection and replacement of locally damaged parts. It can be used as an important safety protection tool for coal mine backfilling mining and has broad prospects for promotion and implementation. Attached Figure Description

[0025] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 A three-dimensional structural diagram of the quick-movable retaining wall in an embodiment of this utility model;

[0028] Figure 2 This is a side view of the quick-movable retaining wall in an embodiment of the present invention;

[0029] Figure 3 A schematic diagram showing the base plate and auxiliary structures in an embodiment of this utility model;

[0030] Figure 4 This is a schematic diagram of the structure of the spliced ​​wall in an embodiment of the present utility model;

[0031] Figure 5 This is a schematic diagram of the top wall section in an embodiment of the present invention;

[0032] Figure 6 This is a schematic diagram of the structure of a standard wall section in an embodiment of this utility model.

[0033] In the picture:

[0034] 1. Base plate; 11. Hinge seat; 12. Stop bar; 13. Hinge base; 2. Wall assembly; 21. Fixed wall; 211. First closed groove; 212. First bolt; 213. Connecting block; 214. Mounting groove; 22. Spliced ​​wall; 221. Top wall section; 2211. Second protrusion; 222. Standard wall section; 2221. First protrusion; 2222. Second closed groove; 2223. Second bolt; 3. Support assembly; 31. Telescopic rod; 311. Connecting cylinder; 3111. Second through hole; 312. Connecting column; 3121. First through hole; 32. Locking element. Detailed Implementation

[0035] To better understand the above-mentioned objectives, features, and advantages of this utility model, the solution of this utility model will be further described below. It should be noted that, unless otherwise specified, the embodiments and features of this utility model can be combined with each other.

[0036] In this description, it should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. It should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joint" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0037] Many specific details are set forth in the following description in order to provide a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of the present invention, and not all embodiments.

[0038] The following is combined Figures 1 to 6 The specific embodiments of this utility model will be described in detail below.

[0039] This embodiment provides a quick and movable retaining wall for backfilling gangue behind the frame, including a base plate 1, a wall assembly 2, and a support assembly 3.

[0040] The base plate 1 is used to adhere to the roadway floor.

[0041] Specifically, the shape of the base plate 1 is not limited, but preferably adopts... Figure 1 The rectangle shown has a width that matches the width of the alleyway.

[0042] Specifically, the thickness of the base plate 1 ranges from 10cm to 15cm.

[0043] Specifically, the base plate 1 is provided with two hinge seats 11 located at both ends in its width direction, and the hinge seats 11 are used to connect the wall component 2; the base plate 1 is also provided with a stop strip 12 located between the two hinge seats 11, and the stop strip 12 is used to block the gap between the wall component 2 and the base plate 1; the base plate 1 is also provided with a hinge base 13 for connecting the support component 3.

[0044] The wall assembly 2 includes a fixed wall 21 and a splicing wall 22. The bottom of the fixed wall 21 is hinged to the base plate 1 and the hinge axis is arranged along the width direction of the base plate 1. The splicing wall 22 is provided at least one piece and can be detachably fixed above the fixed wall 21. The fixed wall 21 and all the splicing walls 22 form a complete wall for blocking coal.

[0045] It is easy to understand that the height of the complete wall can be adjusted by replacing the splicing wall panels 22 with different heights.

[0046] Specifically, the bottom of the fixed wall 21 is provided with two connecting blocks 213 corresponding to the two hinge seats 11, and the connecting blocks 213 are connected to the corresponding hinge seats 11 through the hinge shaft.

[0047] It should be noted that, due to the presence of the connecting block 213 and the hinge seat 11, there is a gap between the base plate 1 and the fixed wall 21 in the area between the two hinge seats 11. Therefore, in this embodiment, a baffle 12 is provided on the base plate 1 to block the gap between the wall assembly 2 and the base plate 1, thereby preventing gangue from leaking out from the gap.

[0048] Specifically, the fixed wall 21 has an installation groove 214 for connecting the support component 3.

[0049] Specifically, the spliced ​​wall 22 includes a top wall section 221 and a standard wall section 222. The top surface of the fixed wall 21 is provided with a first closed groove 211, and the bottom of the standard wall section 222 is provided with a first protrusion 2221. The first protrusion 2221 is embedded in the first closed groove 211 and fixed through by a first bolt 212. The top surface of the standard wall section 222 is provided with a second closed groove 2222, and the bottom of the top wall section 221 is provided with a second protrusion 2211. The second protrusion 2211 is embedded in the second closed groove 2222 and fixed through by a second bolt 2223. The fixed wall 21, the standard wall section 222, and the top wall section 221 form a plane on one side used to block the waste rock. During installation, since the height of the standard wall section 222 is fixed, the appropriate number of standard wall sections 222 and the appropriate height of the top wall section 221 can be selected according to the specific tunnel height to make the height of the complete wall match the actual tunnel height.

[0050] It should be noted that the number of standard wall sections 222 installed is not limited and can be determined based on the actual tunnel height. For example... Figure 1 The standard wall section 222 shown is installed once; the top wall sections 221 are provided with multiple sections of different heights and are evenly distributed within a range with the height of the standard wall section 222 as the upper limit, so as to be able to adapt to a variety of common tunnel sizes.

[0051] It is easy to understand that the first protrusion 2221 cooperates with the first closed groove 211 and the first bolt 212 realizes the detachable fixed connection between the standard wall section 222 and the fixed wall 21; the second protrusion 2211 cooperates with the second closed groove 2222 and the second bolt 2223 realizes the detachable fixed connection between the standard wall section 222 and the top wall section 221.

[0052] It should be noted that when the number of standard wall sections 222 is set to two or more, the first protrusion 2221 of the upper standard wall section 222 cooperates with the second closed groove 2222 of the lower adjacent standard wall section 222 and the second bolt 2223 is used to achieve a detachable fixed connection between the adjacent standard wall sections 222.

[0053] The support assembly 3 includes a telescopic rod 31 and a locking member 32. The telescopic rod 31 is perpendicular to the width direction of the base plate 1. One end of the telescopic rod 31 is hinged to the base plate 1 and the other end is hinged to the fixed wall 21. The locking member 32 is used to lock the length of the telescopic rod 31.

[0054] Specifically, one end of the telescopic rod 31 is hinged to the mounting groove 214, that is, a hinge block is integrally formed or fixed in the mounting groove 214, and the end of the telescopic rod 31 is connected to the hinge block.

[0055] Specifically, the telescopic rod 31 includes a connecting cylinder 311 and a connecting post 312. The connecting post 312 is inserted into the connecting cylinder 311 and has multiple sets of first through holes 3121 distributed along its length. The connecting cylinder 311 has a second through hole 3111. The locking element 32 is a bolt that passes through the first through hole 3121 and the second through hole 3111. The total length of the telescopic rod 31 can be adjusted by adjusting the length of the connecting post 312 inserted into the connecting cylinder 311. The length of the telescopic rod 31 can be locked by aligning the second through hole 3111 with a set of first through holes 3121 and then simultaneously inserting the bolt through the first through hole 3121 and the second through hole 3111.

[0056] It should be noted that although the length of the telescopic rod 31 cannot be continuously adjusted through the second through hole 3111 and the first through hole 3121, the reasonable setting of the spacing between adjacent first through holes 3121 can meet the needs of blocking coal on the roadway surface at various angles.

[0057] The working principle of the quick-movable retaining wall used for backfilling with gangue in this embodiment is as follows:

[0058] S1. Extend the telescopic rod 31 to its shortest length to minimize the overall height of the device, and then transport the device to the target location in this position.

[0059] S2. Determine the length of the telescopic rod 31 based on the angle of the roadway ground at the target location, and determine the number of standard wall sections 222 to be spliced ​​and the height of the top wall section 221 based on the roadway height;

[0060] S3. Assemble the standard wall section 222 and the top wall section 221 in sequence according to the result determined in step S2;

[0061] S4. Adjust the telescopic rod 31 to the target length according to the result determined in step S2;

[0062] S5. This completes the installation of the entire device.

[0063] The above are merely specific embodiments of this utility model, enabling those skilled in the art to understand or implement this utility model. Although detailed descriptions have been provided with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments, and they should all be covered by the protection scope of the claims.

Claims

1. A quick-moving retaining wall for backfilling gangue behind a frame, characterized in that, include: The base plate (1) is used to adhere to the roadway floor; The wall assembly (2) includes a fixed wall (21) and a splicing wall (22). The bottom of the fixed wall (21) is hinged to the base plate (1) and the hinge axis is arranged along the width direction of the base plate (1). The splicing wall (22) is provided with at least one piece and is detachably fixed above the fixed wall (21). The fixed wall (21) and all the splicing walls (22) form a complete wall for blocking coal. The support assembly (3) includes a telescopic rod (31) and a locking member (32). The telescopic rod (31) is perpendicular to the width direction of the base plate (1). One end of the telescopic rod (31) is hinged to the base plate (1) and the other end is hinged to the fixed wall (21). The locking member (32) is used to lock the length of the telescopic rod (31).

2. The quick-movable retaining wall for backfilling gangue after erection as described in claim 1, characterized in that, The spliced ​​wall (22) includes a top wall section (221) and a standard wall section (222); The top surface of the fixed wall (21) is provided with a first closed groove (211), and the bottom of the standard wall section (222) is provided with a first protrusion (2221). The first protrusion (2221) is embedded in the first closed groove (211) and is fixed by a first bolt (212). The top surface of the standard wall section (222) is provided with a second closed groove (2222), and the bottom of the top wall section (221) is provided with a second protrusion (2211). The second protrusion (2211) is embedded in the second closed groove (2222) and is fixed through by a second bolt (2223). The fixed wall (21), standard wall section (222) and top wall section (221) form a plane on one side used to block the coal.

3. The quick-movable retaining wall for backfilling gangue after erection as described in claim 1, characterized in that, The base plate (1) is provided with two hinge seats (11) located at both ends of its width direction. The bottom of the fixed wall (21) is provided with two connecting blocks (213) corresponding to the two hinge seats (11). The connecting blocks (213) are connected to the corresponding hinge seats (11) through the hinge shaft. The base plate (1) is also provided with a stop strip (12) located between the two hinge seats (11). The stop strip (12) is used to block the gap between the fixed wall (21) and the base plate (1).

4. The quick-movable retaining wall for backfilling gangue after erection, as described in any one of claims 1 to 3, is characterized in that, The fixed wall (21) has an installation groove (214), and one end of the telescopic rod (31) is hinged in the installation groove (214).

5. The quick-movable retaining wall for backfilling gangue after erection, as described in claim 4, is characterized in that, The telescopic rod (31) includes a connecting cylinder (311) and a connecting post (312). The connecting post (312) is inserted into the connecting cylinder (311). The connecting post (312) has multiple sets of first through holes (3121) distributed along its length. The connecting cylinder (311) has a second through hole (3111). The locking member (32) is a bolt that passes through the first through hole (3121) and the second through hole (3111).

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