Centralized treatment device for spraying water on roof of coal mine tunnel

Abstract

The utility model discloses a coal mine tunnel roof drenching water centralized treatment device which comprises a water accumulation frame of a rectangular structure, two first built-in frames are installed in the water accumulation frame in the length direction of the water accumulation frame, and the length direction of each first built-in frame is perpendicular to the length direction of the water accumulation frame. The portion, located between the two first built-in frames, in the water accumulation frame is sunken downwards to form a flow guide groove of a conical structure, the bottom of the flow guide groove communicates with a telescopic water guide pipe, the telescopic water guide pipe is rotationally connected with the bottom of the flow guide groove, and second through holes are formed in the bottoms of the side walls, facing each other, of the two first built-in frames and communicate with the interior of the water accumulation frame. The water accumulating frame can form various different forms through movement of the two first built-in frames, so that the water spraying device can be suitable for water spraying treatment of the top plate in various different forms, the requirements of different water spraying areas can be met, and the flexibility of the whole device is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine roadway maintenance, in particular to a device for centralized treatment of roof water gushing in coal mine roadways. Background Art

[0002] Before a coal mine is mined, a heading machine is used to separately open the intake airway and the return airway first, and then the fully-mechanized mining system enters the coal seam for normal mining. During the process of driving the roadway, roof water gushing is a relatively common hydrogeological disaster. Roof water gushing not only affects the environment of the roadway and causes inconvenience to the passage of personnel (it is more common to wet the clothes of personnel), but also when the water drops fall on the belt and mix with the coal, it will affect the transportation of the mined coal and the coal quality. Therefore, great attention is paid to the harm of roof water gushing. Usually, a container is suspended on the roof to collect the water gushing. For example, the patent number of the prior art is CN219754595U, and the name is a device for centralized treatment of roof water gushing in coal mine roadways. All the roof water gushing drips into the metal mesh box, and then the water in the metal mesh box is introduced into the water accumulation bucket, and finally the water inside the metal mesh box is discharged into the roadway floor through a drain pipe.

[0003] However, the water accumulation area of the above metal mesh box is fixed. If there are multiple places of roof water gushing in a certain area, the limited water accumulation area of the metal mesh box cannot meet the collection of roof water gushing. Only by setting multiple metal mesh boxes to cooperate to achieve the treatment of water gushing. Suspending multiple metal mesh boxes will increase the labor intensity of workers, and each metal mesh box is equipped with a water accumulation bucket respectively, which will also cause waste of water accumulation bucket resources. Summary of the Utility Model

[0004] In order to solve the above technical problems existing in the prior art, the utility model provides a device for centralized treatment of roof water gushing in coal mine roadways.

[0005] To achieve the above object, the utility model provides the following technical solution: A device for centralized treatment of roof water gushing in coal mine roadways includes a water accumulation frame in a rectangular structure. Two first inner frames are installed inside the water accumulation frame along its length direction. The length direction of each first inner frame is perpendicular to the length direction of the water accumulation frame. A diversion groove in a conical structure is formed by downward depression between the two first inner frames inside the water accumulation frame. A telescopic guide pipe is communicated with the bottom of the diversion groove. The telescopic guide pipe is rotatably connected to the bottom of the diversion groove. Second through holes are opened at the bottom of the side walls of the two first inner frames facing each other and are communicated with the inside of the water accumulation frame; each can slide relative to it along the length direction of the water accumulation frame, and at the same time, the two first inner frames can also slide relative to it along the width direction of the water accumulation frame so as to change the water accumulation area of the water accumulation frame.

[0006] Preferably, first blocking plates are sealed at both ends of the water accumulation frame in the length direction, and first slide rails are fixedly connected to the two first blocking plates on one side facing the first built-in frame along the length direction thereof, and first slide grooves adapted to the first slide rails are respectively formed on the two first built-in frames, and the first slide rails are embedded in the first slide grooves and slidably connected thereto;

[0007] A second blocking plate is sealed on the outer wall of the water accumulation frame corresponding to the direction in which the two first built-in frames slide out, and a second slide rail is fixedly connected to the inner side of the second blocking plate along its length direction toward the direction of the first built-in frame, and a second slide groove adapted to the second slide rail is formed on the side wall of the first built-in frame, and the second slide rail is embedded in the second slide groove and slidably connected thereto;

[0008] The first slide rail and the second slide rail are both in T-shaped structure.

[0009] Preferably, a connecting rod is fixed in the middle of the water accumulation frame along its width direction, and limit rods are rotatably installed on the top of the connecting rod near its two ends, and a limit column is fixed in the vertical direction at the position of the limit rod corresponding to the top of the first built-in frame, and the limit column extends upward into the corresponding limit rod and slides with it.

[0010] Preferably, the second through holes are distributed below the limiting columns, and when the first built-in frame slides outward along the width direction of the water accumulation frame to the limit position, the second through holes are always located in the water accumulation frame.

[0011] Preferably, a second built-in frame is installed inside each first built-in frame, the second built-in frame is connected to the inside of the first built-in frame through a third through hole, and each second built-in frame can slide relative to the first built-in frame toward a side away from the first sliding groove.

[0012] Preferably, a third slide rail having a T-shaped structure is fixedly mounted on the inner wall of the first built-in frame corresponding to the sliding direction of the second built-in frame, and slide grooves matching the third slide rail are formed on the outer walls on both sides of the second built-in frame;

[0013] A fourth slide rail is fixed on the outer wall of the water accumulation frame corresponding to the sliding direction of the second built-in frame, and the fourth slide rail is adapted to the slide groove on the outer wall of the second built-in frame. When the first built-in frame slides to the extreme position along the width direction of the water accumulation frame, the second built-in frame on the inner wall of the first built-in frame close to the third through hole and the fourth slide rail are located in a straight line.

[0014] Preferably, a support rod is rotatably mounted on the outer wall of the water collection frame below the fourth slide rail, and the length of the support rod is consistent with the width of the second built-in frame.

[0015] Preferably, a filter screen is installed at the connection point between the bottom of the guide groove and the telescopic water guide pipe, and the filter screen is an upwardly raised arc-shaped structure.

[0016] Compared with the prior art, the utility model provides a device for centralized treatment of roof water gushing in coal mine roadways, which has the following beneficial effects:

[0017] (1) In the roof water gushing centralized treatment device proposed by the utility model, two first built-in frames are arranged inside the water accumulation frame, and the two first built-in frames can slide relative to the water accumulation frame along its length direction and width direction respectively, so as to change the water accumulation area of the water accumulation frame. When the two first built-in frames slide relative to the water accumulation frame along its width direction, parts facing opposite directions slide out of the water accumulation frame partially. The water accumulation frame can form various different shapes through the movement of the two first built-in frames, so as to be applicable to the treatment of water gushing in various different shapes of the roof. Workers can adjust the angle and area of the water accumulation frame according to the position of the water gushing during installation, which can not only meet the needs of different water gushing areas, but also greatly improve the flexibility of the whole device.

[0018] (2) The present application also installs a second built-in frame inside the first built-in frame. When the first built-in frame slides to the limit position along the width direction of the water accumulation frame, the second built-in frame can slide out of the first built-in frame, thereby further increasing the area of the water accumulation frame.

[0019] (3) The present application is connected with a telescopic water guide pipe at the bottom of the diversion groove, and the telescopic water guide pipe is rotatably connected with the water accumulation frame. After the water accumulation frame is suspended on the roof at any angle in the horizontal direction, by rotating the telescopic water guide pipe, its end can be contacted with the two side walls of the roadway, and then the water gushing can be drained from the side wall to the bottom plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings are used to provide a further understanding of the utility model, and constitute a part of the specification. They are used together with the embodiments of the utility model to explain the utility model, and do not constitute a limitation to the utility model. In the drawings:

[0021] Figure 1 is the structural schematic diagram of the whole device in the embodiment of the present application;

[0022] Figure 2 is the front view of the whole device in the embodiment of the present application;

[0023] Figure 3 is the overall structural schematic diagram of the water accumulation frame in the embodiment of the present application;

[0024] Figure 4 is the schematic diagram of the whole device from another angle in the embodiment of the present application;

[0025] Figure 5 is the assembly schematic diagram of the second built-in frame and the first built-in frame in the embodiment of the present application;

[0026] Figure 6 isFigure 5 Schematic structural diagram from another angle in

[0027] Figure 7 Schematic diagram after the full expansion of the first inner frame and the second inner frame in the embodiment of the present application;

[0028] Figure 8 Schematic diagram after the expansion of two first inner frames in the embodiment of the present application.

[0029] In the figure: 1, water accumulation frame; 2, lifting lug; 3, telescopic water guide pipe; 5, first inner frame; 6, guide rod; 7, connecting rod; 8, first baffle; 9, second baffle; 10, fourth slide rail; 11, support rod; 12, counterweight wheel; 13, diversion groove; 14, filter screen; 15, bolt; 16, first slide rail; 17, second slide rail; 18, limiting rod; 20, limiting column; 21, second inner frame; 22, first chute; 23, second chute; 24, first through hole; 25, second through hole; 26, third through hole; 27, third slide rail. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Usually, the components of the embodiments of the present invention described and shown in the accompanying drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but only represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present invention.

[0031] Please refer to Figures 1-8, in this embodiment, a device for centralized treatment of roof water leakage in coal mine roadways is proposed, which includes a water accumulation frame 1 with a rectangular structure. Two first built-in frames 5 are installed inside the water accumulation frame 1 along its length direction, and the length direction of each first built-in frame 5 is perpendicular to the length direction of the water accumulation frame 1. A conical diversion groove 13 is formed by downward depression between the two first built-in frames 5 inside the water accumulation frame 1. A telescopic water guide pipe 3 is connected to the bottom of the diversion groove 13. Second through holes 25 are opened at the bottoms of the side walls of the two first built-in frames 5 facing each other. When the water droplets from the roof fall into the first built-in frame 5, the water flows into the water accumulation frame 1 through the second through holes 25 and finally flows out from the telescopic water guide pipe 3. In practical applications, the entire device can be suspended on the roof at the position corresponding to the water leakage through four lifting lugs 2 at the top (simply pass a wire through the lifting lugs 2 and wind it around the steel mesh of the roof), and then adjust the telescopic water guide pipe 3 according to the position of the entire device. Since the installation angle and position of the device are uncontrollable, the telescopic water guide pipe 3 in this embodiment is rotatably installed at the bottom of the water accumulation frame 1. After the device is suspended and fixed, the operator rotates the telescopic water guide pipe 3 to face the side wall of the roadway, and then lengthens or shortens the telescopic water guide pipe 3 so that its end can contact the side wall, which can ensure that the water accumulated inside the water accumulation frame 1 will flow along the side wall into the floor.

[0032] In order to increase the water accumulation area of the water accumulation frame 1, this embodiment proposes to movably install the first built-in frames 5 inside the water accumulation frame 1, and each first built-in frame 5 can slide relative to the water accumulation frame 1 along the length direction of the water accumulation frame 1, that is, the first built-in frame 5 can partially slide outside the water accumulation frame 1, thereby achieving the effect of extending the length of the water accumulation frame 1. At the same time, the two first built-in frames 5 can also slide relative to the water accumulation frame 1 along the width direction of the water accumulation frame 1, and the two first built-in frames 5 partially slide outside the water accumulation frame 1 in opposite directions along the width direction of the water accumulation frame 1, so as to achieve the effect of increasing the width of the water accumulation frame 1.

[0033] In the above solution, at both ends of the water accumulation frame 1 in the length direction, first blocking plates 8 are hermetically arranged. On one side of the two first blocking plates 8 facing the first inner frame 5, first sliding rails 16 are fixedly connected along their length directions. On the two first inner frames 5, first sliding grooves 22 adapted to the first sliding rails 16 are respectively formed. The first sliding rails 16 are embedded in the first sliding grooves 22 and are slidably connected thereto. On the outer wall of the water accumulation frame 1, corresponding to the directions in which the two first inner frames 5 slide out, second blocking plates 9 are hermetically arranged. On the inner side of the second blocking plates 9 facing the first inner frame 5, second sliding rails 17 are fixedly connected along their length directions. On the side walls of the first inner frames 5, second sliding grooves 23 adapted to the second sliding rails 17 are formed. The second sliding rails 17 are embedded in the second sliding grooves 23 and are slidably connected thereto. It should be noted that both the first sliding rails 16 and the second sliding rails 17 are in a T-shaped structure. When it is necessary to extend the length of the water accumulation frame 1, one or two of the first blocking plates 8 are pulled according to actual needs, so that the corresponding first inner frame 5 slides out of the water accumulation frame 1. During the sliding process of the first inner frame 5, the second blocking plate 9 is blocked by the water accumulation frame 1 and cannot slide synchronously with the first inner frame 5 along the length direction of the water accumulation frame 1. Therefore, the second sliding rails 17 and the second sliding grooves 23 maintain relative sliding. Similarly, when it is necessary to increase the width of the water accumulation frame 1, one or two of the second blocking plates 9 are pulled. At this time, the first blocking plates 8 remain fixed relative to the water accumulation frame 1, and the first sliding rails 16 and the first sliding grooves 22 slide relative to each other.

[0034] When the two first inner frames 5 slide along either the length direction or the width direction of the water accumulation frame 1, only one side of them is in a connected state with the inner wall of the water accumulation frame 1. For example, when the first inner frame 5 slides along the length direction of the water accumulation frame 1, the second sliding grooves 23 on the first inner frame 5 and the second sliding rails 17 on the inner side of the second blocking plate 9 are in a connected state, and there are no second sliding grooves 23 on the other side of the first inner frame 5. It is equivalent to that there is only one side provided with a sliding rail when the first inner frame 5 slides relative to the water accumulation frame 1, and there is no corresponding limiting structure to prevent the first inner frame 5 from completely detaching from the water accumulation frame 1. This makes the whole device unsafe during use, especially when the whole device is suspended on the top plate. When its center of gravity is unstable, it is possible that the first inner frame 5 will detach from the water accumulation frame 1 and fall. In view of this, in this embodiment, a connecting rod 7 is fixedly arranged in the middle of the water accumulation frame 1 along its width direction. At positions near both ends of the top of the connecting rod 7, limiting rods 18 are respectively rotatably installed. At positions corresponding to the limiting rods 18 on the top of the first inner frame 5, limiting columns 20 are fixedly arranged vertically. The limiting columns 20 extend upward into the corresponding limiting rods 18 and are slidably matched therewith. By sliding the limiting columns 20 in the limiting rods 18, the sliding of the first inner frame 5 can be limited and guided. It can not only limit the sliding distance of the first inner frame 5, but also play the role of a guide rail, so that both sides of the first inner frame 5 are restricted by guide rails when sliding.

[0035] It should also be pointed out that since the first built-in frame 5 can slide in two directions relative to the water collection frame 1, the position of the second through hole 25 opened on the first built-in frame 5 and connected to the water collection frame 1 is subject to certain restrictions. The second through hole 25 is located below the limiting column 20. When the first built-in frame 5 slides outward along the length direction of the water collection frame 1, the second through hole 25 is always connected to the inside of the water collection frame 1. When the first built-in frame 5 slides outward along the width direction of the water collection frame 1 to the limit state (the limiting column 20 slides to its end relative to the limiting rod 18), the second through hole 25 is still located in the water collection frame 1. In the present embodiment, a first through hole 24 is further provided on the outer wall of the first built-in frame 5. The first through hole 24 is distributed at the bottom of the first built-in frame 5 on the side opposite to the second slide groove 23. When the first built-in frame 5 slides along the length direction inside the water accumulation frame 1, the first through hole 24 is in a closed state. Moreover, when the first built-in frame 5 slides to the limit state along the length direction of the water accumulation frame 1, the first through hole 24 is still located inside the water accumulation frame 1 and is in a closed state. Only when the first built-in frame 5 slides along the width direction of the water accumulation frame 1, the first through hole 24 is connected. This can increase the connection area between the first built-in frame 5 and the inner side of the water accumulation frame 1.

[0036] Further, in this embodiment, a second built-in frame 21 is also installed inside each first built-in frame 5. The second built-in frame 21 is in internal communication with the first built-in frame 5 through a third through hole 26. Each second built-in frame 21 can slide relative to the first built-in frame 5 toward the side away from the first sliding groove 22. By partially sliding the second built-in frame 21 relative to the first built-in frame 5 to the outside thereof, the width of the first built-in frame 5 can be increased, so that the water accumulation area of the entire water accumulation frame 1 is increased. A third slide rail 27 with a T-shaped structure is fixedly installed on the inner wall of the first built-in frame 5 corresponding to the sliding direction of the second built-in frame 21. Sliding grooves adapted to the third slide rail 27 are formed on the outer walls on both sides of the second built-in frame 21. When the first built-in frame 5 slides to the extreme position along the width direction of the water accumulation frame 1, the second built-in frame 21 will then slide outward relative to the first built-in frame 5. A fourth slide rail 10 is fixed on the outer wall of the water accumulation frame 1 corresponding to the sliding direction of the second built-in frame 21. The fourth slide rail 10 is adapted to the sliding groove on the outer wall of the second built-in frame 21. And when the first built-in frame 5 slides to the extreme position along the width direction of the water accumulation frame 1, the second built-in frame 21 on the side of the inner wall of the first built-in frame 5 close to the third through hole 26 is exactly in a straight line with the fourth slide rail 10, and the sliding groove on the outer wall of the second built-in frame 21 can directly slide onto the fourth slide rail 10. Similarly, when the second built-in frame 21 slides to the extreme position, the third through hole 26 is still inside the first built-in frame 5. In order to support the bottom of the second built-in frame 21 exposed to the outside, in this embodiment, a support rod 11 is rotatably installed below the fourth slide rail 10 on the outer wall of the water accumulation frame 1. The length of the support rod 11 is the same as the width of the second built-in frame 21. When the second built-in frame 21 slides outward relative to the first built-in frame 5, the support rod 11 can be rotated 90° and placed below the second built-in frame 21 to support and fix it.

[0037] In addition, when the first built-in frame 5 slides to the outside of the water accumulation frame 1 along the length direction, the first blocking plate 8 and the first built-in frame 5 can also slide along the length direction of the first slide rail 16. Once relative sliding occurs between the two, then when the first built-in frame 5 is reset, since the first blocking plate 8 cannot be aligned with the opening of the water accumulation frame 1, this will cause the two to be unable to be accurately reset. Based on this, a bolt 15 is threadedly connected to the outside of the first blocking plate 8 in this embodiment. When the first built-in frame 5 slides along the length direction of the water accumulation frame 1, the bolt 15 can be rotated to screw it into the threaded hole of the first sliding groove 22, so that the first blocking plate 8 and the first built-in frame 5 are fixed together. When it is necessary for the first built-in frame 5 to slide along the width direction of the water accumulation frame 1, rotate it in the reverse direction to disconnect the first built-in frame 5 and the first blocking plate 8. Similarly, a bolt 15 is connected to the outside of the second blocking plate 9 in the same way.

[0038] Since the entire device in this embodiment can adjust the water accumulation area of the water accumulation frame 1 according to the area of the roof water spray, when only one first built-in frame 5 slides out along the width direction of the water accumulation frame 1, it will cause the center of gravity of the entire device to be unbalanced, which may cause the water accumulation frame 1 to tilt. The tilted water accumulation frame 1 will affect the inflow of the roof water spray into the telescopic water guide pipe 3. Therefore, in this embodiment, guide rods 6 are also installed on both sides of the bottom of the water accumulation frame 1 along its width direction. A plurality of counterweight wheels 12 are sleeved on the guide rods 6 (each counterweight wheel 12 can be disassembled from the guide rod 6, and the specific disassembly method is not limited), and the number and distribution positions of the counterweight wheels 12 on the two guide rods 6 are adjusted to make the entire device in a balanced state.

[0039] Finally, in this embodiment, a filter screen 14 is also installed at the connection between the bottom of the diversion groove 13 and the telescopic water guide pipe 3. The filter screen 14 has an upwardly arched arc-shaped structure. Due to the periodic roof pressure, small coal blocks will bounce off the roof, and when these coal blocks fall to the bottom of the diversion groove 13, they will cause blockage of the telescopic water guide pipe 3. Therefore, in this embodiment, an upwardly arched arc-shaped filter screen 14 is adopted. When the coal blocks fall to the bottom of the diversion groove 13, under the action of the arc-shaped structure of the filter screen 14, the coal blocks are distributed around the filter screen 14 to ensure the smoothness at the center of the filter screen 14.

[0040] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. Coal mine roadway roof water gushing centralized treatment device, characterized in that: The invention comprises a water collection frame (1) with a rectangular structure, wherein two first built-in frames (5) are installed inside the water collection frame (1) along its length direction, wherein the length direction of each first built-in frame (5) is perpendicular to the length direction of the water collection frame (1), wherein the inside of the water collection frame (1) is located between the two first built-in frames (5) and is recessed downward to form a conical guide groove (13), wherein the bottom of the guide groove (13) is connected to a telescopic water guide pipe (3), wherein the telescopic water guide pipe (3) is rotatably connected to the bottom of the guide groove (13), and the bottoms of the side walls of the two first built-in frames (5) facing each other are provided with second through holes (25) which are connected to the inside of the water collection frame (1); each of the two first built-in frames (5) can slide relative to the water collection frame (1) along its length direction, and the two first built-in frames (5) can also slide relative to the water collection frame (1) along its width direction, so that the water collection area of the water collection frame (1) can be changed.

2. The centralized treatment device for roof water spray in coal mine roadways according to claim 1, characterized in that: The two ends of the water accumulation frame (1) in the length direction are sealed with first blocking plates (8), and the two first blocking plates (8) are fixedly connected with first slide rails (16) along the length direction on one side facing the first built-in frame (5), and the two first built-in frames (5) are respectively formed with first slide grooves (22) adapted to the first slide rails (16), and the first slide rails (16) are embedded in the first slide grooves (22) and slidably connected thereto; A second blocking plate (9) is provided on the outer wall of the water accumulation frame (1) in a sealing manner corresponding to the direction in which the two first built-in frames (5) slide out; a second slide rail (17) is fixedly connected to the inner side of the second blocking plate (9) along its length direction in the direction facing the first built-in frames (5); a second slide groove (23) adapted to the second slide rail (17) is formed on the side wall of the first built-in frame (5); the second slide rail (17) is embedded in the second slide groove (23) and is slidably connected thereto; The first slide rail (16) and the second slide rail (17) are both T-shaped structures.

3. The centralized treatment device for roof water gushing in coal mine roadways according to claim 2, wherein: A connecting rod (7) is fixed in the middle of the water accumulation frame (1) along its width direction, and the top of the connecting rod (7) is rotatably mounted with limit rods (18) near its two ends, and a limit column (20) is fixed in the vertical direction at the position of the top of the first built-in frame (5) corresponding to the limit rod (18), and the limit column (20) extends upward into the corresponding limit rod (18) and slidably cooperates with it.

4. The centralized treatment device for roof water gushing in coal mine roadways according to claim 3, characterized in that: The second through hole (25) is distributed below the limiting column (20), and when the first built-in frame (5) slides outward along the width direction of the water collection frame (1) to the limit position, the second through hole (25) is always located in the water collection frame (1).

5. The centralized treatment device for roof water gushing in coal mine roadways according to claim 4, characterized in that: A second built-in frame (21) is installed inside each first built-in frame (5); the second built-in frame (21) is connected to the inside of the first built-in frame (5) through a third through hole (26); and each second built-in frame (21) can slide relative to the first built-in frame (5) toward a side away from the first sliding groove (22).

6. The centralized treatment device for roof water gushing in coal mine roadways according to claim 5, wherein: A third slide rail (27) having a T-shaped structure is fixedly mounted on the inner wall of the first built-in frame (5) corresponding to the sliding direction of the second built-in frame (21), and slide grooves matching the third slide rail (27) are formed on the outer walls on both sides of the second built-in frame (21); On the outer wall of the water accumulation frame (1), a fourth slide rail (10) is fixed corresponding to the sliding direction of the second inner frame (21). The fourth slide rail (10) is adapted to the chute on the outer wall of the second inner frame (21). When the first inner frame (5) slides to the extreme position along the width direction of the water accumulation frame (1), the second inner frame (21) on the side of the inner wall of the first inner frame (5) close to the third through hole (26) and the fourth slide rail (10) are in a straight line.

7. The device for centralized treatment of roof water gushing in coal mine roadways according to claim 6, characterized in that: A support rod (11) is rotatably installed below the fourth slide rail (10) on the outer wall of the water accumulation frame (1). The length of the support rod (11) is the same as the width of the second inner frame (21).

8. The device for centralized treatment of roof water gushing in coal mine roadways according to any one of claims 1-7, characterized in that: A filter screen (14) is installed at the connection between the bottom of the diversion groove (13) and the telescopic water pipe (3). The filter screen (14) has an upwardly convex arc-shaped structure.

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