Grouting reinforcement device for safe mining of working face
By designing a sliding frame and rotating plate to fix the grouting head in the grouting reinforcement device, combined with airbag sealing, the problems of grouting head slippage and grout overflow are solved, ensuring the stability and efficiency of the grouting process.
Patent Information
- Application Number
- CN202520003205.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-02
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-01-02
AI Technical Summary
Existing grouting devices have difficulty fixing the grouting head during the grouting process, which makes it easy for the grouting head to slip out of the borehole, affecting the grouting effect.
A grouting reinforcement device was designed, comprising a frame, a grouting mechanism, an expansion mechanism, and a sealing mechanism. The grouting head is fixed and detached through the cooperation of a sliding frame and a rotating plate, and an airbag is used to seal the inner wall of the borehole to prevent grout from overflowing.
This ensures the grouting head is stably fixed inside the borehole, preventing it from slipping out and effectively preventing grout overflow, thus ensuring the smooth progress of the grouting process.
Smart Images
Figure CN223824967U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to coal mining technical field especially relates to a working face safety exploitation grouting reinforcement device. BACKGROUND
[0002] The nappe refers to the rock layer covered on the coal seam in the mining process of the mine, which includes the roof rock layer, the intermediate rock layer (if any) and part of the floor rock layer. In order to ensure the stability of the rock layer covered on the coal seam (i.e. the nappe), prevent roof fall, rib spalling and other safety accidents, it is necessary to grout and reinforce it.
[0003] At present, the slurry is usually injected into the rock mass fracture of the coal seam roof or side slope through drilling under the action of the grouting equipment. After the slurry solidifies, the strength and integrity of the rock mass can be enhanced, thereby improving the stability of the nappe. However, the existing device needs the operating personnel to hold the grouting head for grouting, it is difficult to fix the grouting head during the grouting process, and the grouting head is easy to slide out of the drilling hole and affect the grouting.
[0004] Therefore, in view of the above problems, the working face safety exploitation grouting reinforcement device capable of fixing the grouting head during the grouting process and avoiding the grouting head from sliding out of the drilling hole and affecting the grouting is developed. UTILITY MODEL CONTENT
[0005] In order to overcome the shortcomings that the existing device is difficult to fix the grouting head during the grouting process, and the grouting head is easy to slide out of the drilling hole and affect the grouting, the utility model provides the working face safety exploitation grouting reinforcement device capable of fixing the grouting head during the grouting process and avoiding the grouting head from sliding out of the drilling hole and affecting the grouting.
[0006] Technical scheme: A working face safety exploitation grouting reinforcement device, comprising a rack, a wheel, a grouting mechanism and an expansion mechanism, the left and right two parts of the rack are rotatably connected with the wheels on the lower side, the rack is provided with the grouting mechanism for grouting into the drilling hole, and the grouting mechanism is provided with the expansion mechanism for avoiding sliding out of the drilling hole.
[0007] In a preferred embodiment of the utility model, the grouting mechanism comprises a grouting equipment, a connecting pipe, a grouting head and a handle, the grouting equipment is connected to the rack, the connecting pipe is connected to the right side of the grouting equipment, the grouting head is connected to the end of the connecting pipe, and the handle is connected to the left part of the grouting head. The operating personnel holds the handle to make the grouting head extend into the drilling hole, the slurry is conveyed to the grouting head through the connecting pipe under the action of the grouting equipment, and the slurry is injected into the drilling hole through the grouting head, so that the slurry is injected into the rock mass fracture through the drilling hole.
[0008] In a preferred embodiment of the utility model, the expansion mechanism includes sliding frame, first adjusting screw rod, rotating piece and torsion spring, the left part of grouting head is slidably connected with sliding frame, the left side of upper part of grouting head is rotatably connected with first adjusting screw rod, sliding frame is threadedly connected with first adjusting screw rod, the middle part of grouting head is rotatably connected with multiple rotating pieces, and torsion spring is connected between rotating piece and grouting head, first adjusting screw rod rotates and drives sliding frame to slide right in grouting head, sliding frame slides and extrudes rotating piece to make it rotate and open, and torsion spring is deformed under stress, thereby rotating piece and the inner wall of drill hole are clamped, and grouting head can be fixed.
[0009] In a preferred embodiment of the utility model, the right side of sliding frame and the left side of rotating piece are both inclined surface structures.
[0010] In a preferred embodiment of the utility model, the utility model further includes disengagement mechanism, the disengagement mechanism includes support block, support ring, slide rod and second adjusting screw rod, the front and rear parts of handle are both slidably connected with slide rod, the right sides of slide rod are connected with support ring, the left side of lower part of support ring is rotatably connected with second adjusting screw rod, the left lower side of grouting head is connected with support block, support block is threadedly connected with second adjusting screw rod, the rock layer at the position of support ring and orifice is contacted, under the guidance of slide rod, second adjusting screw rod rotates and drives grouting head to move left, thereby grouting head can be disengaged from drill hole.
[0011] In a preferred embodiment of the utility model, rotating knobs are arranged on first adjusting screw rod and second adjusting screw rod.
[0012] In a preferred embodiment of the utility model, anti-skid grooves are formed in rotating knobs, for increasing friction.
[0013] In a preferred embodiment of the utility model, the utility model further includes sealing mechanism, the sealing mechanism includes piston tube, piston rod and air bag, the left part of grouting head is connected with piston tube, piston rod is slidably connected in piston tube, the left part of piston rod is connected with sliding frame, the middle part of grouting head is connected with air bag, air bag is connected with piston tube through connecting pipe, sliding frame moves right and drives piston rod to move right, thereby extruding in piston tube, and further make the gas in piston tube be transported to air bag through connecting pipe, make air bag inflate and expand and contact with the inner wall of drill hole, block the slurry in drill hole through air bag, and avoid slurry overflow.
[0014] The utility model has the following advantages: 1, the utility model is through first adjusting screw rod rotation, drive sliding frame to slide right in grouting head, sliding frame slides and extrudes rotating piece to make it rotate and open and clamp with the inner wall of drill hole, can reach in the grouting process to the grouting head is fixed, avoid grouting head from drill hole and slide out and influence the effect of grouting.
[0015] 2. The utility model discloses a support ring is contacted with the rock stratum of orifice position, under the guidance of the slide bar, and the second adjusting screw rod rotates and drives the grouting head to move to left through the thread, can reach the effect that grouting head can be separated from the drilling hole.
[0016] 3. The utility model discloses a slide frame moves right and drives the piston rod to move right, extrudes in the piston pipe, makes the gas in the piston pipe through the connecting pipe and transports to the gasbag, to make the gasbag inflation and contact with the inner wall of drilling hole, can reach the effect that the grout in the drilling hole is blocked through the gasbag, avoids the overflow of grout. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is the three-dimensional structure schematic diagram of the utility model.
[0018] Figure 2 It is the three-dimensional structure schematic diagram of the grouting mechanism of the utility model.
[0019] Figure 3 It is the three-dimensional structure schematic diagram of the inflation mechanism of the utility model.
[0020] Figure 4 It is the three-dimensional structure schematic diagram of the separation mechanism of the utility model.
[0021] Figure 5 It is the three-dimensional structure schematic diagram of the sealing mechanism of the utility model.
[0022] Figure 6 It is the sectional view of the sealing mechanism of the utility model.
[0023] Among them: 1 - frame, 2 - wheel, 3 - grouting mechanism, 31 - grouting equipment, 32 - connecting pipe, 33 - grouting head, 34 - handle, 4 - inflation mechanism, 41 - slide frame, 42 - first adjusting screw rod, 43 - rotating piece, 44 - torsion spring, 5 - separation mechanism, 51 - support block, 52 - support ring, 53 - slide bar, 54 - second adjusting screw rod, 6 - sealing mechanism, 61 - piston pipe, 62 - piston rod, 63 - gasbag. DETAILED DESCRIPTION
[0024] The utility model is described in detail below in combination with the drawings and specific embodiments, but not as the limitation of the utility model.
[0025] A working face safety mining grouting reinforcement device, as shown in Figure 1 It includes frame 1, wheel 2, grouting mechanism 3 and inflation mechanism 4, and wheel 2 is rotatably connected to the lower side of the left and right two parts of frame 1, grouting mechanism 3 is arranged on frame 1, and inflation mechanism 4 is arranged on grouting mechanism 3.
[0026] As Figure 1 AndFigure 2 As shown in
[0027] As shown in Figure 1 and Figure 3 The expansion mechanism 4 includes a sliding frame 41, a first adjusting screw 42, a rotating piece 43 and a torsion spring 44. The sliding frame 41 is slidingly connected to the left part of the grouting head 33. The first adjusting screw 42 is rotatably connected to the upper left side of the grouting head 33. The sliding frame 41 is threadedly connected to the first adjusting screw 42. Four rotating pieces 43 are rotatably connected to the middle part of the grouting head 33. The torsion spring 44 is connected between each of the rotating pieces 43 and the grouting head 33.
[0028] As shown in Figure 1 and Figure 4 The device further includes a disengaging mechanism 5. The disengaging mechanism 5 includes a support block 51, a support ring 52, a sliding rod 53 and a second adjusting screw 54. The sliding rod 53 is slidingly connected to the front and rear parts of the handle 34. The support ring 52 is connected between the right sides of the sliding rods 53. The second adjusting screw 54 is rotatably connected to the lower left side of the support ring 52. The support block 51 is connected to the lower left side of the grouting head 33. The support block 51 is threadedly connected to the second adjusting screw 54.
[0029] As shown in Figure 1 , Figure 5 and Figure 6 The device further includes a sealing mechanism 6. The sealing mechanism 6 includes a piston tube 61, a piston rod 62 and an air bag 63. The piston tube 61 is connected to the left part of the grouting head 33. The piston rod 62 is slidingly connected in the piston tube 61. The piston rod 62 is connected to the sliding frame 41. The air bag 63 is connected to the middle part of the grouting head 33. The air bag 63 is connected to the piston tube 61 through the connecting tube 32.
[0030] The utility model discloses a first need through the operation personnel hand -held handle 34 when using first make the grouting head 33 extend into the borehole, make the support ring 52 with the rock stratum of orifice position contact, after rotating the first adjusting screw rod 42, the first adjusting screw rod 42 rotates and drives the sliding frame 41 to slide right in the grouting head 33 through the thread, and the sliding frame 41 slides and extrudes the rotary piece 43 and makes it rotate and open, and the torsional spring 44 is stressed and deformed, thereby through the rotary piece 43 and the borehole inner wall clamping, and then can fix the grouting head 33, and the sliding frame 41 moves right and drives the piston rod 62 to move right, thereby extruding in the piston pipe 61, and then make the gas in the piston pipe 61 through the connecting pipe 32 and be transported to the gasbag 63, make the gasbag 63 inflation and contact with the borehole inner wall, then under the action of grouting equipment 31 through the connecting pipe 32 and be transported to the grouting head 33 with the slurry of grouting head 33 and be injected into the borehole, thereby through the borehole and be injected into the rock mass fissure with the slurry, and the slurry in the borehole is blocked through the gasbag 63 in the grouting process, avoid the slurry overflow, and after the grouting work is completed, rotate the first adjusting screw rod 42, and the first adjusting screw rod 42 rotates and drives the sliding frame 41 to slide left reset in the grouting head 33 through the thread, and the sliding frame 41 resets and the rotary piece 43 is separated, and the rotary piece 43 is reset under the action of torsional spring 44, thereby no longer fix the grouting head 33 and limit, and the sliding frame 41 resets and drives the piston rod 62 to move left reset, thereby make the gasbag 63 reset and separate with the borehole inner wall, and the slurry can form the adhesion or solidification between the grouting head 33 and the borehole inner wall when grouting, lead to the grouting head 33 to be difficult to pull out, so can rotate the second adjusting screw rod 54, under the guidance of slide bar 53, the second adjusting screw rod 54 rotates and drives the grouting head 33 to move left through the thread, thereby make the grouting head 33 can separate with the borehole.
[0031] Although the utility model has been described with reference to the example embodiment, it should be appreciated that the utility model is not limited to the disclosed example embodiment. The scope of the following claims should be construed as broadly as possible so as to encompass all modifications and equivalent structures and functions.
Claims
1. A grouting reinforcement device for safe mining of working faces, characterized in that, The machine includes a frame (1), wheels (2), a grouting mechanism (3), and an expansion mechanism (4). Wheels (2) are rotatably connected to the lower left and right sides of the frame (1). The frame (1) is equipped with a grouting mechanism (3) for grouting into the borehole. The grouting mechanism (3) is equipped with an expansion mechanism (4) to prevent it from slipping out of the borehole. The grouting mechanism (3) includes a grouting device (31), a connecting pipe (32), a grouting head (33), and a handle (34). The frame (1) The grouting device (31) is connected to the top. A connecting pipe (32) is connected to the right side of the grouting device (31). A grouting head (33) is connected to the end of the connecting pipe (32). A handle (34) is connected to the left side of the grouting head (33). The operator holds the handle (34) to insert the grouting head (33) into the borehole. Under the action of the grouting device (31), the grout is transported to the grouting head (33) through the connecting pipe (32), and the grout is injected into the borehole through the grouting head (33). The grout is injected into the rock fissures through drilling. The expansion mechanism (4) includes a sliding frame (41), a first adjusting screw (42), a rotating plate (43), and a torsion spring (44). The left side of the grouting head (33) is slidably connected to the sliding frame (41), and the upper left side of the grouting head (33) is rotatably connected to the first adjusting screw (42). The sliding frame (41) and the first adjusting screw (42) are threadedly connected. The middle part of the grouting head (33) is rotatably connected to multiple rotating plates. The rotating plate (43) is connected to the grouting head (33) by a torsion spring (44). The first adjusting screw (42) rotates and drives the sliding frame (41) to slide to the right inside the grouting head (33) through the thread. The sliding frame (41) slides and squeezes the rotating plate (43) to make it rotate and open. The torsion spring (44) is deformed by the force, and thus the rotating plate (43) is engaged with the inner wall of the borehole, thereby fixing the grouting head (33).
2. The grouting reinforcement device for safe mining of a working face according to claim 1, characterized in that, The right side of the sliding frame (41) and the left side of the rotating plate (43) are both inclined structures.
3. A grouting reinforcement device for safe mining of a working face according to claim 2, characterized in that, It also includes a disengagement mechanism (5), which includes a support block (51), a support ring (52), a slide rod (53), and a second adjusting screw (54). The front and rear parts of the handle (34) are slidably connected to the slide rod (53). The right side of the slide rod (53) is connected to the support ring (52). The lower left side of the support ring (52) is rotatably connected to the second adjusting screw (54). The lower left side of the grouting head (33) is connected to the support block (51). The support block (51) and the second adjusting screw (54) are threadedly connected, so that the support ring (52) contacts the rock strata at the borehole. Under the guidance of the slide rod (53), the second adjusting screw (54) rotates and drives the grouting head (33) to move to the left through the thread, so that the grouting head (33) can be disengaged from the borehole.
4. A grouting reinforcement device for safe mining of a working face according to claim 3, characterized in that, Both the first adjusting screw (42) and the second adjusting screw (54) are equipped with rotating knobs.
5. A grouting reinforcement device for safe mining of a working face according to claim 4, characterized in that, Each knob has anti-slip grooves to increase friction.
6. A grouting reinforcement device for safe mining of a working face according to claim 5, characterized in that, It also includes a sealing mechanism (6), which includes a piston tube (61), a piston rod (62) and an air bladder (63). The left side of the grouting head (33) is connected to the piston tube (61), and the piston rod (62) is slidably connected inside the piston tube (61). The left side of the piston rod (62) is connected to the sliding frame (41), and the middle part of the grouting head (33) is connected to the air bladder (63). The air bladder (63) is connected to the piston tube (61) through the connecting pipe (32). When the sliding frame (41) moves to the right, it drives the piston rod (62) to move to the right, thereby squeezing the inside of the piston tube (61). This causes the gas inside the piston tube (61) to be transported to the air bladder (63) through the connecting pipe (32), so that the air bladder (63) inflates and contacts the inner wall of the borehole. The air bladder (63) blocks the grout in the borehole and prevents the grout from overflowing.