A dredging device for coal mine well drainage

Abstract

This invention discloses a sludge removal device for coal mine drainage, belonging to the field of coal mine sludge removal construction technology. The device includes a sludge removal pump and a sludge removal pipe. The output end of the sludge removal pump is connected to the sludge removal pipe, and the end of the sludge removal pipe is connected to a scraping device. The scraping device includes a hollow connecting rod. An impeller is rotatably connected to one side of the hollow connecting rod, and scraping claws are movably connected to both ends of the hollow connecting rod. A transmission mechanism is provided inside the hollow connecting rod, connected between the impeller and the scraping claws. The impeller rotates under the suction of the sludge removal pump, simultaneously driving the transmission mechanism. This, in turn, drives the scraping claws at both ends to swing relative to or in opposite directions, pushing the sludge towards the sludge removal pipe and discharging it from the pump. This invention, through two relatively swinging scraping claws, expands the sludge removal range, breaking up clumps of sludge and transporting them to the sludge removal pipe for rapid sludge removal. It solves the problems of low efficiency and difficult operation in existing coal mine sludge removal methods.

Description

Technical Field

[0001] This invention belongs to the field of coal mine dredging construction technology, and relates to a dredging device for coal mine drainage. Background Technology

[0002] During coal mining, seepage or gushing water often occurs in the mine shafts. Water used for production also flows into the mine shafts after use, all of which cause water accumulation underground. This accumulation of water forms silt. Currently, the method of silt removal in coal mines is to use silt pumps to extract the silt from underground. However, existing silt removal devices rely solely on the suction force of the device itself, resulting in a limited silt removal range. Furthermore, the silt in coal mines tends to clump together, making it impossible to remove the silt quickly using only the suction force of the silt removal device. Summary of the Invention

[0003] This invention overcomes the shortcomings of existing technologies and proposes a dredging device for coal mine drainage. It solves the problems of low dredging efficiency and difficult operation in existing coal mine dredging systems.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solution.

[0005] A sludge removal device for coal mine drainage includes a sludge removal pump and a sludge removal pipe. The output end of the sludge removal pump is connected to the sludge removal pipe, and the end of the sludge removal pipe is connected to a sludge scraping device. The sludge scraping device includes a hollow connecting rod. An impeller is rotatably connected to one side of the hollow connecting rod, and sludge scraping claws are movably connected to both ends of the hollow connecting rod. A transmission mechanism is provided inside the hollow connecting rod, and the transmission mechanism is connected between the impeller and the sludge scraping claws. The impeller rotates under the suction of the sludge removal pump, which in turn drives the transmission mechanism to move. In turn, the transmission mechanism drives the sludge scraping claws at both ends to swing relative to or in opposite directions, pushing the sludge towards the sludge removal pipe and being discharged by the sludge removal pump.

[0006] Furthermore, the transmission mechanism includes a rack, a rotating shaft, and a gear; the shaft of the impeller is fixedly connected to the rotating shaft; one end of the rotating shaft extends into the hollow connecting rod and is fixedly connected to an L-shaped connecting rod; a gear is rotatably connected to the inner wall of the hollow connecting rod; racks are symmetrically slidably connected to the inner wall of the hollow connecting rod; both racks are meshed with the gear; a hollow lever is fixedly connected to one side of one rack; one end of the L-shaped connecting rod is slidably connected to the interior of the hollow lever; and shift posts are symmetrically fixedly connected to one side of both racks.

[0007] An extension plate is symmetrically fixedly connected to one side of the hollow connecting rod. Sliding grooves are symmetrically opened at both ends of the hollow connecting rod and at corresponding positions of the extension plate. An extension rod is hinged inside the extension plate. A stroke groove is opened in the middle of the extension rod. The end of the extension rod away from the extension plate is fixedly connected to the scraper claw. The push pin is slidably connected to the inner wall of the stroke groove. The sliding groove is slidably connected to the extension rod.

[0008] Furthermore, a first groove is provided in the gap between the scraping claws, a baffle plate is rotatably connected to the inner wall of the first groove, a connecting column is fixedly connected to the side of the baffle plate that rotates with the first groove, the connecting column is rotatably connected to the inner wall of the first groove, a torsion spring is sleeved on the outer wall of the connecting column, the end of the torsion spring away from the first groove is fixedly connected to the baffle plate, and the other end of the torsion spring is fixedly connected to the first groove.

[0009] Furthermore, ball bearings are symmetrically arranged on both sides of the scraper claw.

[0010] Furthermore, the outer side of the scraping claw is chamfered.

[0011] Furthermore, an arc-shaped block is fixedly connected to the side of the hollow connecting rod away from the impeller.

[0012] Furthermore, it also includes a base; the dredging pump is fixedly connected to the base.

[0013] Furthermore, a wheel is fixedly connected to the bottom of the base, and a handle is fixedly connected to one side of the base.

[0014] Furthermore, the dredging pipe includes a guide pipe and a connecting pipe; the guide pipe is fixedly connected to the output end of the dredging pump, and one end of the guide pipe is detachably connected to the connecting pipe, with the hollow connecting rod disposed inside the connecting pipe.

[0015] The beneficial effects of this invention compared to the prior art are as follows:

[0016] In use, this invention utilizes the suction force generated by the dredging pump to rotate the impeller. The L-shaped connecting rod and the hollow lever work together to cause the gears and two racks to reciprocate. Furthermore, the stroke groove on the extension rod and the lever work together to cause the scraping claws to rhythmically agitate the silt, increasing the dredging range and drawing clumps of silt to the connecting pipe for extraction. This device, with its two relatively swinging scraping claws, expands the dredging range and can break up clumps of silt, transporting them quickly to the dredging pipe for efficient dredging. This solves the problems of low dredging efficiency and difficult operation in existing coal mine dredging systems. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the coal mine drainage and dredging device described in this invention.

[0018] Figure 2 This is a schematic diagram of the hollow connecting rod described in this invention;

[0019] Figure 3 This is one of the side sectional views of the hollow connecting rod described in this invention;

[0020] Figure 4 This is a partially enlarged view of the scraping claw described in this invention;

[0021] Figure 5 This is a second side sectional view of the hollow connecting rod described in this invention.

[0022] In the diagram: 1. Base; 2. Dredging pump; 3. Sludge scraper; 4. Guide tube; 5. Connecting pipe; 6. Hollow connecting rod; 7. Impeller; 8. First groove; 9. Baffle plate; 10. Connecting column; 11. Torsion spring; 13. Arc block; 14. Ball bearing; 15. Wheel; 16. Handle; 121. Extension plate; 122. Slide groove; 123. Rotating shaft; 124. Gear; 125. Rack; 126. Hollow lever; 127. L-shaped connecting rod; 128. Extension rod; 129. Stroke groove; 1210. Lever. Detailed Implementation

[0023] To make the technical problems to be solved, the technical solutions, and the beneficial effects of this invention clearer, the invention will be further described in detail with reference to the embodiments and accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. The technical solutions of this invention are described in detail below with reference to the embodiments and accompanying drawings, but the scope of protection is not limited thereto.

[0024] Please see Figures 1 to 5 This embodiment proposes a sludge removal device for coal mine drainage, including a base 1, a sludge removal pump 2, and a sludge scraper 3. A wheel 15 is fixedly connected to the bottom end of the base 1, and a handle 16 is fixedly connected to one side of the base 1, facilitating the movement of the entire sludge removal device. The sludge removal pump 2 is fixedly connected to the top end of the base 1, and a conduit 4 is fixedly connected to the output end of the sludge removal pump 2. A connecting pipe 5 is rotatably connected to one end of the conduit 4. A hollow connecting rod 6 is installed inside the connecting pipe 5, and an impeller 7 is rotatably connected to one side of the hollow connecting rod 6. An arc-shaped block 13 is fixedly connected to the side of the hollow connecting rod 6 away from the impeller 7.

[0025] The hollow connecting rod 6 has sludge scraping claws 3 at both ends. The hollow connecting rod 6 has a transmission mechanism inside, which is connected between the impeller 7 and the sludge scraping claws 3. The impeller 7 rotates under the suction of the sludge pump 2, which drives the transmission mechanism to move. In turn, the transmission mechanism drives the sludge scraping claws 3 at both ends to swing relative to each other or in opposite directions, forming a sludge scraping effect. This helps to push the sludge towards the connecting pipe 5 and discharge it by the sludge pump 2.

[0026] For details, please refer to Figure 2-5 As shown, the transmission mechanism includes: a rack 125, a rotating shaft 123, and a gear 124. The rotating shaft 123 is fixedly connected to the center of the impeller 7. One end of the rotating shaft 123 extends into the hollow connecting rod 6 and is fixedly connected to an L-shaped connecting rod 127. The gear 124 is rotatably connected to the inner wall of the hollow connecting rod 6. The racks 125 are symmetrically slidably connected to the inner wall of the hollow connecting rod 6. Both racks 125 are meshed with the gear 124. A hollow lever 126 is fixedly connected to one side of one rack 125. One end of the L-shaped connecting rod 127 is slidably connected to the interior of the hollow lever 126. A lever post 1210 is symmetrically fixedly connected to one side of each of the two racks 125.

[0027] An extension plate 121 is symmetrically fixedly connected to one side of the hollow connecting rod 6. Sliding grooves 122 are symmetrically formed at both ends of the hollow connecting rod 6 and at corresponding longitudinal positions on the extension plate 121 for the up-and-down swinging of the scraping claw 3. An extension rod 128 is hinged inside the extension plate 121. A stroke groove 129 is formed in the middle of the extension rod 128. The end of the extension rod 128 away from the extension plate 121 is fixedly connected to the scraping claw 3. The deflector 1210 is slidably connected to the inner wall of the stroke groove 129, and the sliding groove 122 is slidably connected to the extension rod 128.

[0028] The outer side of the scraping claw 3 is chamfered, and both scraping claws 3 adopt a lightweight design. The two sides of the scraping claw 3 are symmetrically provided with ball bearings 14.

[0029] A first groove 8 is provided in the gap between the scraping claws 3. A baffle plate 9 is rotatably connected to the inner wall of the first groove 8. A connecting post 10 is fixedly connected to the side of the first groove 8 that is rotatably connected to the baffle plate 9. The connecting post 10 is rotatably connected to the inner wall of the first groove 8. A torsion spring 11 is sleeved on the outer wall of the connecting post 10. One end of the torsion spring 11 away from the first groove 8 is fixedly connected to the baffle plate 9, and the other end of the torsion spring 11 is fixedly connected to the first groove 8.

[0030] Working principle:

[0031] When using this invention, the entire dredging device is moved to a suitable position, and then the guide tube 4 and connecting pipe 5 are inserted into the silt. At this time, the dredging pump 2 is started. At this time, a large suction force is generated in the guide tube 4 and connecting pipe 5, which pulls out the silt located at the connecting pipe 5. At the same time, the impeller 7 in the connecting pipe 5 rotates. The impeller 7 drives the rotating shaft 123 and the L-shaped connecting rod 127 to rotate, so that the hollow lever 126 drives one of the racks 125 to move. The corresponding rack 125 cooperates with the gear 124, so that the two racks 125 form a reciprocating motion. The lever 1210 on one side of the rack 125 drives the extension rod 128 to move. The scraping claw 3 rotates along the connection between the extension rod 128 and the extension plate 121. The stroke groove 129 in the extension rod 128 is slidably connected to the push post 1210. When the ends of the two racks 125 move away from each other, the angle between the two extension rods 128 begins to increase, causing the two scraping claws 3 to unfold. At this time, the blocking plate 9 on the scraping claw 3 comes into contact with the silt, causing the blocking plate 9 to squeeze the torsion spring 11. The blocking plate 9 begins to rotate along the first groove 8 and forms a 90-degree angle with the scraping claw 3. When the ends of the two racks 125 move closer to each other, the angle between the two extension rods 128 begins to decrease. When the blocking plate 9 is no longer squeezed by the silt, it resets under the elastic force of the torsion spring 11, blocking the scraped silt. As the two racks 125 move, the silt is gradually pulled towards the connecting pipe 5, effectively expanding the dredging range. In addition, the outer side of the scraping claw 3 is designed with a chamfer to facilitate the squeezing of clumps of silt.

[0032] The above description is a further detailed explanation of the present invention in conjunction with specific preferred embodiments. It should not be considered that the specific embodiments of the present invention are limited to this. For those skilled in the art, several simple deductions or substitutions can be made without departing from the present invention, and all of these should be considered to fall within the scope of patent protection determined by the submitted claims.

Claims

1. A dredging device for coal mine drainage, comprising a dredging pump (2) and a dredging pipe, wherein the output end of the dredging pump (2) is connected to the dredging pipe, characterized in that, The end of the dredging pipe is connected to the sludge scraping device; the sludge scraping device includes a hollow connecting rod (6); an impeller (7) is rotatably connected to one side of the hollow connecting rod (6), and sludge scraping claws (3) are movably connected to both ends of the hollow connecting rod (6). A transmission mechanism is provided inside the hollow connecting rod (6), and the transmission mechanism is connected between the impeller (7) and the sludge scraping claws (3). The impeller (7) rotates under the suction of the dredging pump (2), and at the same time drives the transmission mechanism to move. Then, through the transmission mechanism, the sludge scraping claws (3) at both ends swing relative to each other or in opposite directions, pushing the sludge towards the dredging pipe and being discharged by the dredging pump (2). A first groove (8) is provided in the gap between the scraping claws (3). A baffle plate (9) is rotatably connected to the inner wall of the first groove (8). A connecting column (10) is fixedly connected to the side of the baffle plate (9) that rotates with the first groove (8). The connecting column (10) is rotatably connected to the inner wall of the first groove (8). A torsion spring (11) is sleeved on the outer wall of the connecting column (10). One end of the torsion spring (11) away from the first groove (8) is fixedly connected to the baffle plate (9). The other end of the torsion spring (11) is fixedly connected to the first groove (8). When the two scraping claws (3) swing in opposite directions, the blocking plate (9) on the scraping claw (3) comes into contact with the silt, causing the blocking plate (9) to squeeze the torsion spring (11). The blocking plate (9) begins to rotate along the first groove (8) and forms a 90-degree angle with the scraping claw (3). When the two scraping claws (3) swing relative to each other, the blocking plate (9) is no longer squeezed by the silt and resets under the elastic force of the torsion spring (11), blocking the scraped silt.

2. The dredging device for coal mine drainage according to claim 1, characterized in that, The transmission mechanism includes a rack (125), a rotating shaft (123), and a gear (124); the shaft of the impeller (7) is fixedly connected to the rotating shaft (123); one end of the rotating shaft (123) extends into the hollow connecting rod (6) and is fixedly connected to an L-shaped connecting rod (127); the inner wall of the hollow connecting rod (6) is rotatably connected to a gear (124); the inner wall of the hollow connecting rod (6) is symmetrically slidably connected to a rack (125); both racks (125) are meshed with the gear (124); one side of one rack (125) is fixedly connected to a hollow lever (126); one end of the L-shaped connecting rod (127) is slidably connected to the hollow lever (126); and one side of both racks (125) is symmetrically fixedly connected to a lever (1210). An extension plate (121) is symmetrically fixedly connected to one side of the hollow connecting rod (6). Slide grooves (122) are symmetrically opened at both ends of the hollow connecting rod (6) and at corresponding positions of the extension plate (121). An extension rod (128) is hinged inside the extension plate (121). A stroke groove (129) is opened in the middle of the extension rod (128). The end of the extension rod (128) away from the extension plate (121) is fixedly connected to the scraper claw (3). The pusher (1210) is slidably connected to the inner wall of the stroke groove (129). The slide groove (122) is slidably connected to the extension rod (128).

3. The dredging device for coal mine drainage according to claim 1, characterized in that, The scraper claw (3) has symmetrical ball bearings (14) on both sides.

4. A dredging device for coal mine drainage according to claim 1, characterized in that, The outer side of the scraper claw (3) is chamfered.

5. A dredging device for coal mine drainage according to claim 1, characterized in that, An arc-shaped block (13) is fixedly connected to the side of the hollow connecting rod (6) away from the impeller (7).

6. A dredging device for coal mine drainage according to claim 1, characterized in that, It also includes a base (1); the dredging pump (2) is fixedly connected to the base (1).

7. A dredging device for coal mine drainage according to claim 6, characterized in that, The bottom end of the base (1) is fixedly connected to a wheel (15), and a handle (16) is fixedly connected to one side of the base (1).

8. A dredging device for coal mine drainage according to claim 1, characterized in that, The dredging pipe includes a conduit (4) and a connecting pipe (5); the conduit (4) is fixedly connected to the output end of the dredging pump (2), and one end of the conduit (4) is detachably connected to the connecting pipe (5), and the hollow connecting rod (6) is set inside the connecting pipe (5).

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