Engineering blasting hole backfilling device
By using the guide groove, fixing plate, first cylinder, guide block and universal wheel in combination, along with motor-driven spiral blades, the problem of aligning the blast hole backfilling device with the blast hole is solved, achieving precise and uniform backfilling effect and improving construction efficiency.
Patent Information
- Application Number
- CN202520395418.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-07
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-03-07
AI Technical Summary
Existing blast hole backfilling devices often fail to accurately align the backfill inlet with the blast hole after being fixed, causing backfill material to spill around the blast hole, increasing operational difficulty and reducing work efficiency.
The system employs a combination of guide grooves, fixed plates, a first cylinder, guide blocks, and casters to ensure that the discharge pipe of the backfill hopper is precisely aligned with the blast hole, and that the backfill material is evenly pushed through motor-driven spiral blades.
It improved backfill accuracy, reduced the workload of subsequent device position adjustments, and improved construction efficiency and ease of operation.
Smart Images

Figure CN223741370U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to engineering blasting technical field especially engineering blasting blasthole backfilling device. BACKGROUND
[0002] Engineering blasting technology has penetrated into many fields of economic construction after development, especially made important contribution for railway construction, mining, city old city directional blasting etc.
[0003] However, the existing blasthole backfilling device has obvious defects. When the operator fixes the device in place, the backfilling opening often cannot be accurately aligned with the blasthole, which directly leads to the backfilling material unable to accurately enter the blasthole, but is poured around the blasthole. Subsequently, the device position has to be re-adjusted and fixed again, which not only increases the operation difficulty, greatly increases the labor intensity of the construction personnel, but also seriously reduces the overall work efficiency, and has adverse effects on the engineering progress. UTILITY MODEL CONTENT
[0004] The utility model aims at at least one of the technical problems in the related art. To this end, one purpose of the utility model is to provide an engineering blasting blasthole backfilling device, which reduces the workload of subsequent adjustment of the device position and improves the backfilling precision.
[0005] The engineering blasting blasthole backfilling device provided by the utility model comprises a main plate, a backfilling hopper is inserted into the top center of the main plate, a support plate is welded to the outer surface of the backfilling hopper, a pair of guide grooves parallel to the support plate are formed in the top adjacent two ends of the support plate, a pair of fixed plates parallel to the main plate are threadedly connected to the top adjacent two ends of the main plate, a first air cylinder is threadedly connected to the surface of the fixed plate, a guide block inserted into the guide groove is fixed to the telescopic end of the first air cylinder, and universal wheels are threadedly connected to the bottom four corners of the support plate.
[0006] Preferably, a discharge pipe is welded to the bottom center of the backfilling hopper, a support rod is welded to the inside of the backfilling hopper, a motor is threadedly connected to the top center of the support rod, a rotating shaft is fixed to the rotating end of the motor, and helical blades are fixed to the outer surface of the rotating shaft.
[0007] Preferably, a second air cylinder is threadedly connected to each of the left and right ends of the bottom of the main plate, a moving plate is threadedly connected to the telescopic section of the second air cylinder, support legs are threadedly connected to the bottom four corners of the main plate, a connecting plate is threadedly connected between the two support legs, and plug-in rods penetrating through the connecting plate are welded to the bottom left and right ends of the moving plate.
[0008] Preferably, one end of the top of the main plate is fixed with a handrail for pushing the main plate.
[0009] Preferably, the top center of the main plate is provided with a moving hole for moving the backfilling funnel.
[0010] Preferably, one end of the support leg is pivotally connected with a walking wheel for moving.
[0011] Preferably, the positions of the two guide grooves, the fixed plate and the guide block are vertically provided and fixed.
[0012] The beneficial effects in the utility model are: through the cooperation of the guide groove, the fixed plate, the first cylinder, the guide block and the universal wheel, the discharge pipe of the backfilling funnel can be accurately aligned with the blast hole, the backfilling material is avoided from being poured around the blast hole, the workload of subsequent adjustment of the device position is reduced, and the backfilling precision is improved. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 The utility model provides the three -dimensional structure schematic diagram of engineering blasting cannon backfilling device.
[0014] Figure 2 The utility model provides the three -dimensional structure schematic diagram of engineering blasting cannon backfilling device.
[0015] Figure 3 The utility model provides the three -dimensional structure schematic diagram of engineering blasting cannon backfilling device.
[0016] Figure 4 The utility model provides the three -dimensional structure schematic diagram of engineering blasting cannon backfilling device.
[0017] Figure 5 The utility model provides the three -dimensional structure schematic diagram of engineering blasting cannon backfilling device.
[0018] Figure 6 The utility model provides the three -dimensional structure schematic diagram of engineering blasting cannon backfilling device.
[0019] In the drawing: 1, main plate, 2, backfilling funnel, 3, support plate, 4, guide groove, 5, fixed plate, 6, first cylinder, 7, guide block, 8, universal wheel, 9, discharge pipe, 10, support rod, 11, motor, 12, rotating shaft, 13, helical blade, 14, second cylinder, 15, moving plate, 16, plug-in rod, 17, support leg, 18, connecting plate, 19, walking wheel, 20, handrail, 21, moving hole. DETAILED DESCRIPTION
[0020] REFERENCE Figures 1-6, engineering blasting cannon backfill device, including the main plate 1, the top center of the main plate 1 is inserted into the backfill funnel 2, the outer surface of the backfill funnel 2 is welded with the support plate 3, the top of the support plate 3 is adjacent to both ends and is provided with a pair of guide grooves 4 parallel to it, the top of the main plate 1 is adjacent to both ends and is provided with a pair of fixed plates 5 parallel to it, the surface of the fixed plate 5 is threadedly connected with the first air cylinder 6, the telescopic end of the first air cylinder 6 is fixed with the guide block 7 inserted into the guide groove 4, the bottom of the support plate 3 is threadedly connected with the universal wheel 8 at four corners, the positions of the two guide grooves 4 and the fixed plate 5 are vertically provided and fixed, when the right first air cylinder 6 is started to drive the guide block 7 to move, the movement of the right guide block 7 drives the support plate 3 to move horizontally, the rear guide block 7 moves in the rear guide groove 4, at this time, the rear first air cylinder 6 is started to drive the rear guide block 7 to move, the movement of the rear guide block 7 drives the support plate 3 to move longitudinally, and the right guide block 7 moves in the right guide groove 4, at the same time, because the positions of the two guide grooves 4 and the guide block 7 are vertical, when the horizontal and vertical positions of the guide groove 4 are adjusted, the positions are fixed, at the same time, the universal wheel 8 provides omnidirectional movement for the support plate 3, and the movement of the support plate 3 drives the backfill funnel 2 to move to be completely aligned with the blast hole.
[0021] The bottom center of the backfill funnel 2 is welded with the discharge pipe 9, the inside of the backfill funnel 2 is welded with the support rod 10, the top center of the support rod 10 is threadedly connected with the motor 11, the rotating end of the motor 11 is fixed with the rotating shaft 12, the outer surface of the rotating shaft 12 is fixed with the spiral blade 13, when the motor 11 is started to drive the rotating shaft 12 to rotate, the rotating shaft 12 drives the spiral blade 13 to rotate, and the backfill material is uniformly pushed into the discharge pipe 9, so that the uniform backfill of the backfill material is realized.
[0022] The bottom left and right ends of the main plate 1 are threadedly connected with the second air cylinder 14, the telescopic section of the second air cylinder 14 is threadedly connected with the moving plate 15, the bottom four corners of the main plate 1 are threadedly connected with the support leg 17, the two support legs 17 are threadedly connected with the connecting plate 18, the left and right ends of the bottom of the moving plate 15 are welded with the insertion rod 16 penetrating through the connecting plate 18, by controlling the telescopic section of the second air cylinder 14, the moving plate 15 can be driven to move up and down. The up and down movement of the moving plate 15 drives the up and down movement of the insertion rod 16, so that the insertion rod 16 is inserted into the ground, the device can be fixed, and the stability of the device is improved.
[0023] One end of the top of the main plate 1 is fixed with the handrail 20, the device can be pushed to move by the handrail 20, and convenience is provided.
[0024] The top center of the main plate 1 is provided with the moving hole 21, the movable range of the movement of the backfill funnel 2 can be provided through the moving hole 21.
[0025] One end of the support leg 17 is pivotally connected with a walking wheel 19, which facilitates flexible movement of the device on the ground, greatly improving the applicability and convenience of the device.
[0026] When the device is in use, the operator pushes the device to the designated position by pushing the handrail 20, and then starts the second cylinder 14 to drive the moving plate 15 and the plug-in rod 16 to move downward, inserts the plug-in rod 16 into the ground, and fixes the device. At this time, the right first cylinder 6 is started to drive the support plate 3 to move horizontally, and the movement of the support plate 3 drives the backfilling funnel 2 to move horizontally. When the horizontal position adjustment is completed, the rear first cylinder 6 is started to drive the support plate 3 to move longitudinally, and the movement of the support plate 3 drives the backfilling funnel 2 to move longitudinally, thereby ensuring that the discharge pipe 9 of the backfilling funnel 2 is completely aligned with the blast hole. Next, the operator needs to pour the backfilling material into the backfilling funnel 2. When the motor 11 is started, the rotating shaft 12 drives the spiral blade 13 to rotate, and the backfilling material is uniformly pushed into the discharge pipe 9, thereby realizing precise and uniform backfilling of the backfilling material.
Claims
1. A backfill device for an engineered blast cannon, characterized by: The utility model relates to a backfilling funnel device, including the mainboard (1), the top center of mainboard (1) inserts backfilling funnel (2), the outer surface of backfilling funnel (2) is welded with support plate (3), the top adjacent two ends of support plate (3) are equipped with a pair of guide groove (4) parallel with it, the top adjacent two ends of mainboard (1) are connected with a pair of fixed plate (5) parallel with it, the surface of fixed plate (5) is connected with first air cylinder (6) threadedly, the telescopic end of first air cylinder (6) is fixed with the guide block (7) inserted inside guide groove (4), the bottom four corners of support plate (3) are all connected with universal wheel (8) threadedly.
2. The engineered blast cannon backfill device of claim 1, wherein: The bottom center of backfilling funnel (2) is welded with discharge pipe (9), the inside of backfilling funnel (2) is welded with support rod (10), the top center of support rod (10) is connected with motor (11) threadedly, the rotation end of motor (11) is fixed with rotating shaft (12), the outer surface of rotating shaft (12) is fixed helical blade (13).
3. The engineered blasting cannon backfill device of claim 1, wherein: The left and right ends of mainboard (1) bottom are all connected with second air cylinder (14) threadedly, the telescopic section of second air cylinder (14) is connected with moving plate (15) threadedly, the bottom four corners of mainboard (1) are connected with support leg (17) threadedly, the connecting plate (18) is connected between two support legs (17), the left and right ends of moving plate (15) bottom are all welded with the plug-in rod (16) of penetrating connecting plate (18).
4. The engineered blasting cannon backfill device of claim 1, wherein: The top one end of mainboard (1) is fixed with handrail (20).
5. The engineered blasting cannon backfill device of claim 1, wherein: The top center of mainboard (1) is equipped with moving hole (21).
6. The engineered blasting cannon backfill device of claim 3, wherein: The one end of support leg (17) is pivotally connected with walking wheel (19).
7. The engineered blast cannon backfill device of claim 1, wherein: The positions of two guide grooves (4), fixed plate (5) and guide block (7) are all vertically equipped and fixed.