Blasting protective fence for unknown mined-out area of strip mine

Abstract

The utility model relates to the technical field of blasting engineering protection, and discloses a strip mine unknown goaf blasting protective fence which comprises a fixing box, a rotating shaft is rotationally connected in the inner wall of the upper portion of the fixing box, threads are symmetrically arranged on the two sides of the rotating shaft, and the rotating shaft is symmetrically meshed with lead screw blocks. A ground gripping mechanism is inserted into soil, the periphery of a connecting sleeve is wrapped with concrete, a motor box is limited through a threaded rod, the connecting sleeve is fixed through concrete hardening, so that the motor box is fixed, a two-way motor is started, the two-way motor drives a rotating shaft to rotate, the rotating shaft drives a rotating block to move downwards, and the rotating block drives a movable plate to move downwards; the movable plate pushes the inserting block to move towards the outer side, so that the inserting block is inserted into soil to further fix the fixing box, by improving the fixing mode of the protective fence, the protective fence can be attached to the ground more firmly, collapse caused by impact of a large number of flying stones and fragments is avoided, and the life safety of workers is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of blasting engineering protection, in particular to a blasting protection fence for unknown empty areas in open-pit mines. Background Art

[0002] In blasting operations in open-pit mines, unknown empty areas refer to those unpredictable cavity areas formed due to geological changes or historical reasons. These areas may suddenly collapse during blasting, releasing a large amount of flying rocks and debris, posing a serious threat to the life and safety of workers. Therefore, the use of guardrails can effectively isolate these dangerous areas, protect the safety of workers, and reduce the occurrence of work-related accidents.

[0003] Existing guardrails are generally fixed to the ground by bolts. This fixing method is easy to collapse under the impact of a large amount of flying rocks and debris, which seriously threatens the life safety of workers. In addition, the existing guardrails are complicated in installation and disassembly steps, which greatly reduces the work efficiency of workers. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a blasting protection fence for unknown empty areas in open-pit mines, which has the advantages of improving the fixing method and strengthening the fixation, and solves the problems in the above-mentioned background technology.

[0005] The utility model provides the following technical solution: a blasting guardrail for an unknown empty area in an open-pit mine, comprising a fixed box, a rotating shaft rotatably connected in the upper inner wall of the fixed box, threads symmetrically provided on both sides of the rotating shaft, a screw block symmetrically meshingly connected to the rotating shaft, a connecting block symmetrically fixedly connected to the side wall of the screw block, a fixing plate fixedly connected to the inner side wall of the connecting block, a motor box fixedly connected to the lower surface of the fixed box, a gripping mechanism installed on the lower surface of the motor box, guardrails symmetrically clamped on the side walls of the fixed box, and clamping grooves symmetrically provided at both ends of the guardrail.

[0006] Preferably, the gripping mechanism includes a bottom block, which is fixedly connected to the lower surface of the motor box, a cavity is opened inside the bottom block, and the inner wall of the cavity is symmetrically opened with through holes at equal intervals, a rotating shaft is rotatably connected to the inner wall of the bottom block, a rotating block is meshingly connected to the rotating shaft, a movable plate is symmetrically rotatably connected to the side wall of the rotating block, and an insertion block is rotatably connected to the lower part of the movable plate.

[0007] Preferably, a bidirectional motor is fixedly connected to the inner wall of the motor box, the upper output shaft of the bidirectional motor passes through the lower surface of the fixed box and is fixedly connected to the side wall of the rotating shaft, and the lower output shaft of the bidirectional motor passes through the side wall of the motor box and is fixedly connected to the side wall of the rotating shaft.

[0008] Preferably, the clamping groove corresponds to the fixing plate, a warning light is installed on the upper surface of the fixing box, and through openings are symmetrically opened on the lower surface of the fixing box.

[0009] Preferably, a connecting sleeve is sleeved on the motor box, and threaded holes are symmetrically provided on the connecting sleeve and the side wall of the motor box, and threaded rods are engaged and connected to the threaded holes.

[0010] Preferably, the screw block is engaged on the rotating shaft to make relative motion, the outer side of the connecting sleeve is wrapped with concrete, and the front end of the plug block is conical.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. Insert the gripping mechanism into the soil, wrap the connecting sleeve with concrete, limit the motor box with a threaded rod, fix the connecting sleeve by hardening the concrete, and thus fix the motor box. Start the bidirectional motor, which drives the rotating shaft to rotate, drives the rotating block to move downward, drives the movable plate to move downward, and pushes the plug block to move outward, so that the plug block is inserted into the soil to further fix the fixed box. By improving the fixing method of the guardrail, it can be more firmly attached to the ground, avoiding collapse under the impact of a large number of flying rocks and debris, thereby ensuring the life safety of the workers.

[0013] 2. The bidirectional motor drives the rotating shaft to rotate, the rotating shaft drives the screw block to move relatively, the screw block drives the connecting block to move, the connecting block drives the fixed plate to move, and the fixed plate fits with the card slot so that the fixed box can fix and limit the guardrail, which simplifies the installation steps and improves the installation efficiency of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the three-dimensional structure of the fixed box section of the utility model;

[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of the gripping mechanism of the utility model;

[0017] Figure 4 This is a schematic diagram of the three-dimensional structure of the utility model guardrail;

[0018] Figure 5 This is a schematic diagram of the assembly structure of the utility model.

[0019] In the figure: 1. guardrail; 2. snap-in groove; 3. fixing box; 4. warning light; 5. connecting sleeve; 6. gripping mechanism; 7. through-hole; 8. rotating shaft; 9. screw block; 10. connecting block; 11. fixing plate; 12. motor box; 13. bidirectional motor; 61. rotating shaft; 62. rotating block; 63. movable plate; 64. plug block; 65. bottom block; 66. cavity; 67. through hole. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-Figure 5 , a blasting guardrail for unknown empty areas in an open-pit mine, comprising a fixed box 3, a rotating shaft 8 is rotatably connected in the upper inner wall of the fixed box 3, threads are symmetrically provided on both sides of the rotating shaft 8, a screw block 9 is symmetrically meshed and connected to the rotating shaft 8, a connecting block 10 is symmetrically fixedly connected to the side wall of the screw block 9, a fixing plate 11 is fixedly connected to the inner side wall of the connecting block 10, a motor box 12 is fixedly connected to the lower surface of the fixed box 3, a gripping mechanism 6 is installed on the lower surface of the motor box 12, a guardrail 1 is symmetrically clamped on the side wall of the fixed box 3, clamping grooves 2 are symmetrically provided at both ends of the guardrail 1, a bidirectional motor 13 drives the rotating shaft 8 to rotate, the rotating shaft 8 drives the screw block 9 to move relatively, the screw block 9 drives the connecting block 10 to move, and the connecting block 10 drives the fixed plate 11 to move, and the fixed plate 11 is fitted with the clamping groove 2 so that the fixed box 3 can fix and limit the guardrail 1, thereby simplifying the installation steps and improving the installation efficiency of the workers;

[0022] The gripping mechanism 6 includes a bottom block 65, which is fixedly connected to the lower surface of the motor box 12. A cavity 66 is provided inside the bottom block 65. Insertion holes 67 are symmetrically provided on the inner wall of the cavity 66 at medium intervals. A rotating shaft 61 is rotatably connected to the inner wall of the bottom block 65. A rotating block 62 is meshedly connected to the rotating shaft 61. A movable plate 63 is symmetrically rotatably connected to the side wall of the rotating block 62. An insert block 64 is rotatably connected to the lower part of the movable plate 63. The bidirectional motor 13 drives the rotating shaft 61 to rotate. The rotating shaft 61 drives the rotating block 62 to move downward. The rotating block 62 drives the movable plate 63 to move downward. The movable plate 63 pushes the insert block 64 to move outward, so that the insert block 64 is inserted into the soil to further fix the fixed box 3. By improving the fixing method of the guardrail, it can be more firmly attached to the ground, avoiding collapse under the impact of a large number of flying rocks and debris, thereby ensuring the life safety of the staff.

[0023] A bidirectional motor 13 is fixedly connected to the inner wall of the motor box 12, and the upper output shaft of the bidirectional motor 13 passes through the lower surface of the fixed box 3 and is fixedly connected to the side wall of the rotating shaft 8. The lower output shaft of the bidirectional motor 13 passes through the side wall of the motor box 12 and is fixedly connected to the side wall of the rotating shaft 61. The bidirectional motor 13 drives the motor 13 to rotate, which is convenient for fixing the guardrail 1 and the fixed box 3 during use. At the same time, it is convenient for the device to disassemble the guardrail 1 and the fixed box 3 after use, thereby improving the practicality of the device.

[0024] The clamping groove 2 corresponds to the fixing plate 11, a warning light 4 is installed on the upper surface of the fixing box 3, and a through hole 7 is symmetrically opened on the lower surface of the fixing box 3. The use of the warning light 4 improves the warning effect of the device;

[0025] The motor box 12 is sleeved with a connecting sleeve 5, and threaded holes are symmetrically provided on the connecting sleeve 5 and the side wall of the motor box 12, and threaded rods are engaged and connected to the threaded holes, so that the fixing box 3 and the connecting sleeve 5 are better fixed by the threaded rods, thereby improving the fixing effect of the device;

[0026] The screw block 9 is meshed with the rotating shaft 8 to make relative motion. The outer side of the connecting sleeve 5 is wrapped with concrete. The front end of the plug block 64 is conical. The concrete base is used to fix the guardrail, which can better prevent movement or collapse during blasting.

[0027] Working principle: when the device is working, first fix the fixed box 3, insert the gripping mechanism 6 into the soil, wrap the connection sleeve 5 with concrete, limit the motor box 12 by the threaded rod, fix the connection sleeve 5 by hardening the concrete, so that the motor box 12 is fixed, start the bidirectional motor 13, the bidirectional motor 13 drives the rotating shaft 61 to rotate, the rotating shaft 61 drives the rotating block 62 to move downward, the rotating block 62 drives the movable plate 63 to move downward, and the movable plate 63 pushes the plug block 64 to move outward, so that the plug block 64 is inserted into the soil to further fix the fixed box 3. By improving the fixing method of the guardrail, it can be more firmly attached to the ground, avoiding collapse under the impact of a large number of flying rocks and debris, and ensuring the life safety of the staff;

[0028] At the same time, the bidirectional motor 13 drives the rotating shaft 8 to rotate, the rotating shaft 8 drives the screw block 9 to move relatively, the screw block 9 drives the connecting block 10 to move, and the connecting block 10 drives the fixed plate 11 to move. The fixed plate 11 fits with the card slot 2 so that the fixed box 3 fixes and limits the guardrail 1, which simplifies the installation steps and improves the installation efficiency of workers.

Claims

1. A blasting protection fence for an unknown empty area in an open-pit mine, comprising a fixing box (3), characterized in that: A rotating shaft (8) is rotatably connected to the inner wall of the upper part of the fixed box (3), threads are symmetrically provided on both sides of the rotating shaft (8), a screw block (9) is symmetrically meshed and connected to the rotating shaft (8), a connecting block (10) is symmetrically fixedly connected to the side wall of the screw block (9), a fixing plate (11) is fixedly connected to the inner wall of the connecting block (10), a motor box (12) is fixedly connected to the lower surface of the fixed box (3), a gripping mechanism (6) is installed on the lower surface of the motor box (12), a guardrail (1) is symmetrically clamped to the side wall of the fixed box (3), and clamping grooves (2) are symmetrically provided at both ends of the guardrail (1).

2. The open-pit mine unknown empty area blasting protection fence according to claim 1, characterized in that: The gripping mechanism (6) comprises a bottom block (65), the bottom block (65) is fixedly connected to the lower surface of the motor box (12), a cavity (66) is provided inside the bottom block (65), and the inner wall of the cavity (66) is symmetrically provided with insertion holes (67) at equal intervals, a rotating shaft (61) is rotatably connected to the inner wall of the bottom block (65), a rotating block (62) is meshingly connected to the rotating shaft (61), a movable plate (63) is symmetrically rotatably connected to the side wall of the rotating block (62), and an insert block (64) is rotatably connected to the lower part of the movable plate (63).

3. The open-pit mine unknown empty area blasting protection fence according to claim 1, characterized in that: A bidirectional motor (13) is fixedly connected to the inner wall of the motor box (12); an upper output shaft of the bidirectional motor (13) passes through the lower surface of the fixed box (3) and is fixedly connected to the side wall of the rotating shaft (8); and a lower output shaft of the bidirectional motor (13) passes through the side wall of the motor box (12) and is fixedly connected to the side wall of the rotating shaft (61).

4. The open-pit mine unknown empty area blasting protection fence according to claim 1, characterized in that: The clamping groove (2) corresponds to the fixing plate (11), a warning light (4) is installed on the upper surface of the fixing box (3), and through openings (7) are symmetrically opened on the lower surface of the fixing box (3).

5. The open-pit mine unknown empty area blasting protection fence according to claim 2, characterized in that: A connecting sleeve (5) is sleeved on the motor box (12), and threaded holes are symmetrically provided on the side walls of the connecting sleeve (5) and the motor box (12), and threaded rods are meshed and connected to the threaded holes.

6. The open-pit mine unknown empty area blasting protection fence according to claim 5, characterized in that: The screw block (9) is meshed with the rotating shaft (8) to make relative motion, the outer side of the connecting sleeve (5) is wrapped with concrete, and the front end of the insert block (64) is conical.

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