A buffer protection device for blasting excavation under complex geological conditions

Abstract

The utility model relates to the technical field of blasting protection, especially a buffer protection device for blasting excavation under complex geological conditions, including two mounting plates and two winding shafts, the both ends of winding shaft rotatably connect with the axle support, the axle support is fixedly connected in mounting plate outer wall respectively, wherein one mounting plate inner wall rotatably connects with first output shaft, first output shaft outer wall all fixedly connect with two first drive bevel gears, the one end of winding shaft close to first output shaft all fixedly connect with first driven bevel gear, first driven bevel gear and first drive bevel gear mesh. The device in the utility model, the explosion -proof blanket of winding is synchronous release, and the hole is shielded, through the structural design of first output shaft, first drive bevel gear, winding shaft and first driven bevel gear, replaced traditional manual winding, realized the mechanization of explosion -proof blanket unrolling and winding, solved the problem of manual operation and time -consuming.

Description

Technical Field

[0001] This utility model relates to the field of blasting protection technology, and more specifically, to a buffer protection device for blasting excavation under complex geological conditions. Background Technology

[0002] When carrying out blasting excavation operations under complex geological conditions, the flying rocks and shock waves generated by the blasting can pose a serious threat to the surrounding personnel, equipment and environment. Buffer protection devices are key equipment to ensure operational safety.

[0003] Traditional protective devices often use explosion-proof blankets, which are blanket-like protective devices woven from high-strength fiber materials. They reduce the damage to surrounding personnel, equipment, and the environment from shock waves and debris generated by an explosion through physical isolation and energy absorption. However, the deployment and retraction of explosion-proof blankets are inconvenient in practice. In most cases, they must be laid and retrieved manually. This not only consumes a lot of manpower and time, but also presents significant challenges in complex terrain and confined spaces during blasting operations. Delays in these operations can render the blankets ineffective. Utility Model Content

[0004] This invention proposes a buffer protection device for blasting excavation under complex geological conditions, which can replace the traditional manual winding, realize the mechanized unfolding and winding of the explosion-proof blanket, and solve the problem of labor-intensive and time-consuming manual operation.

[0005] This utility model proposes a buffer protection device for blasting excavation under complex geological conditions, comprising two mounting plates and two winding shafts. Each end of the winding shaft is rotatably connected to a shaft support, which is fixedly connected to the outer wall of the mounting plate. A first output shaft is rotatably connected to the inner wall of one of the mounting plates. Two first driving bevel gears are fixedly connected to the outer wall of each first output shaft. A first driven bevel gear is fixedly connected to the end of each winding shaft near the first output shaft, and the first driven bevel gear meshes with the first driving bevel gear. An explosion-proof blanket is fixedly connected to the outer wall of each winding shaft.

[0006] Preferably, the protective device further includes two swing rods, each end of which is fixedly connected to a swing arm, and each swing arm is fixedly connected to a pivot shaft on its outer wall.

[0007] Preferably, each of the two mounting plates has two support blocks fixedly connected to its outer wall, and the support blocks are rotatably connected to the rotating shaft.

[0008] Preferably, a second output shaft is rotatably connected to the inner wall of another mounting plate, and two second drive bevel gears are fixedly connected to the outer wall of the second output shaft.

[0009] Preferably, each of the two ends of the rotating shaft is fixedly connected to a second driven bevel gear, and the second driven bevel gear meshes with the corresponding second driving bevel gear.

[0010] Preferably, a chassis is fixedly connected to the top of both mounting plates, and a stepper motor is fixedly connected to the inner wall of each chassis.

[0011] Preferably, one of the stepper motor output terminals is fixedly connected to the second output shaft, and the other stepper motor is fixedly connected to the first output shaft.

[0012] The beneficial effects of this utility model, achieved through the above technical solution, are as follows: 1. The stepper motor output drives the first output shaft to rotate. The two first drive bevel gears on the outer wall of the first output shaft rotate synchronously. Through the meshing transmission with the first driven bevel gear at the end of the take-up shaft, the two take-up shafts are driven to rotate in opposite directions. When the take-up shafts rotate, the wound explosion-proof blanket is released synchronously to cover the opening. Through the structural design of the first output shaft, the first drive bevel gear, the take-up shaft and the first driven bevel gear, the traditional manual winding is replaced, realizing the mechanized unfolding and winding of the explosion-proof blanket, and solving the problem of labor-intensive and time-consuming manual operation.

[0013] 2. The stepper motor intermittently rotates in both forward and reverse directions to drive the second output shaft to rotate. The second drive bevel gear of the second output shaft meshes with the second driven bevel gear at the end of the rotating shaft, driving the rotating shaft and the swing arm to rotate around the support block. The swing arm drives the swing rod to impact the explosion-proof blanket, shaking off the gravel on the surface of the explosion-proof blanket. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partial structural schematic diagram of the present invention; Figure 3 This is a schematic diagram of the installation structure of the winding shaft of this utility model; Figure 4 This is a schematic diagram of the installation structure of the swing arm of this utility model.

[0015] In the diagram: 1. Mounting plate; 2. First output shaft; 3. First drive bevel gear; 4. Rewind shaft; 5. Shaft support; 6. First driven bevel gear; 7. Explosion-proof blanket; 8. Chassis; 9. Stepper motor; 10. Second output shaft; 11. Second drive bevel gear; 12. Swing rod; 13. Swing arm; 14. Rotating shaft; 15. Support block; 16. Second driven bevel gear. Detailed Implementation

[0016] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0017] It should be noted that all directional indications in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0018] like Figures 1-3 As shown, a buffer protection device for blasting excavation under complex geological conditions includes two mounting plates 1 and two winding shafts 4. Both ends of the winding shafts 4 are rotatably connected to shaft supports 5, which are fixedly connected to the outer walls of the mounting plates 1. A first output shaft 2 is rotatably connected to the inner wall of one of the mounting plates 1. Two first driving bevel gears 3 are fixedly connected to the outer walls of the first output shafts 2. A first driven bevel gear 6 is fixedly connected to the end of the winding shafts 4 near the first output shafts 2. The first driven bevel gear 6 meshes with the first driving bevel gear 3. An explosion-proof blanket 7 is fixedly connected to the outer walls of the winding shafts 4.

[0019] The structural design of the first output shaft 2, the first drive bevel gear 3, the winding shaft 4, and the first driven bevel gear 6 replaces the traditional manual winding, realizing the mechanized unfolding and winding of the explosion-proof blanket 7, and solving the problem of labor-intensive and time-consuming manual operation.

[0020] like Figure 4 As shown, the protective device also includes two swing rods 12, each with a swing arm 13 fixedly connected to its end. Each swing arm 13 has a rotating shaft 14 fixedly connected to its outer wall. Each of the two mounting plates 1 has two support blocks 15 fixedly connected to its outer wall. Each support block 15 is rotatably connected to the rotating shaft 14. The inner wall of the other mounting plate 1 is rotatably connected to a second output shaft 10. The outer wall of the second output shaft 10 has two second drive bevel gears 11 fixedly connected to its outer wall. Each of the two rotating shafts 14 has a second driven bevel gear 16 fixedly connected to its end. Each driven bevel gear 16 meshes with a corresponding second drive bevel gear 11.

[0021] The stepper motor 9 intermittently rotates in both forward and reverse directions, driving the second output shaft 10 to rotate. The second drive bevel gear 11 of the second output shaft 10 meshes with the second driven bevel gear 16 at the end of the rotating shaft 14, driving the rotating shaft 14 and the swing arm 13 to rotate around the support block 15. The swing arm 13 drives the swing rod 12 to impact the explosion-proof blanket 7, shaking off the gravel on the surface of the explosion-proof blanket 7.

[0022] like Figure 1As shown, a chassis 8 is fixedly connected to the top of both mounting plates 1. A stepper motor 9 is fixedly connected to the inner wall of the chassis 8. The output end of one stepper motor 9 is fixedly connected to the second output shaft 10, and the other stepper motor 9 is fixedly connected to the first output shaft 2.

[0023] To prevent dust from affecting the first drive bevel gear 3, the first driven bevel gear 6, the second driven bevel gear 16, and the second drive bevel gear 11, a dust cover can be installed on the mounting plate 1. The first output shaft 2, the winding shaft 4, the second output shaft 10, and the rotating shaft 14 rotate with the dust cover, allowing the first drive bevel gear 3, the first driven bevel gear 6, the second driven bevel gear 16, and the second drive bevel gear 11 to be placed inside the dust cover. Gear oil can then be applied to the first drive bevel gear 3, the first driven bevel gear 6, the second driven bevel gear 16, and the second drive bevel gear 11.

[0024] Working principle: The device is fixed on the stable base above the entrance of the blasting air-raid shelter by the mounting plate 1. In the initial state, the explosion-proof blanket 7 is wound around the outer wall of the take-up shaft 4.

[0025] The stepper motor 9 that controls the first output shaft 2 is started. The output end of the stepper motor 9 drives the first output shaft 2 to rotate. The two first drive bevel gears 3 on the outer wall of the first output shaft 2 rotate synchronously. Through the meshing transmission with the first driven bevel gear 6 at the end of the take-up shaft 4, the two take-up shafts 4 are driven to rotate in opposite directions. When the take-up shaft 4 rotates, the wound explosion-proof blanket 7 is released synchronously to cover the opening.

[0026] During the winding process of the explosion-proof blanket 7, the stepper motor 9 controlling the second output shaft 10 is started. The stepper motor 9 intermittently rotates forward and backward, driving the second output shaft 10 to rotate. The second drive bevel gear 11 of the second output shaft 10 meshes with the second driven bevel gear 16 at the end of the rotating shaft 14, driving the rotating shaft 14 and the swing arm 13 to rotate around the support block 15. The swing arm 13 drives the swing rod 12 to impact the explosion-proof blanket 7, shaking off the gravel on the surface of the explosion-proof blanket 7.

[0027] It should be noted that the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A buffer protection device for blasting excavation under complex geological conditions, comprising two mounting plates (1) and two winding shafts (4), characterized in that: Both ends of the take-up shaft (4) are rotatably connected to shaft supports (5), and the shaft supports (5) are respectively fixedly connected to the outer wall of the mounting plate (1). One of the inner walls of the mounting plate (1) is rotatably connected to a first output shaft (2). The outer wall of the first output shaft (2) is fixedly connected to two first drive bevel gears (3). The end of the take-up shaft (4) near the first output shaft (2) is fixedly connected to a first driven bevel gear (6). The first driven bevel gear (6) meshes with the first drive bevel gear (3). The outer wall of the take-up shaft (4) is fixedly connected to an explosion-proof blanket (7).

2. The buffer and protection device for blasting excavation under complex geological conditions according to claim 1, characterized in that: It also includes two swing rods (12), each of which is fixedly connected to a swing arm (13) at its end, and each of which is fixedly connected to a pivot (14) on its outer wall.

3. The buffer and protection device for blasting excavation under complex geological conditions according to claim 2, characterized in that: Two support blocks (15) are fixedly connected to the outer walls of the two mounting plates (1), and the support blocks (15) are rotatably connected to the rotating shaft (14).

4. The buffer and protection device for blasting excavation under complex geological conditions according to claim 3, characterized in that: Another mounting plate (1) has a second output shaft (10) rotatably connected to its inner wall, and two second drive bevel gears (11) are fixedly connected to the outer wall of the second output shaft (10).

5. The buffer and protection device for blasting excavation under complex geological conditions according to claim 4, characterized in that: The ends of the two rotating shafts (14) are fixedly connected with a second driven bevel gear (16), which meshes with the corresponding second driving bevel gear (11).

6. The buffer and protection device for blasting excavation under complex geological conditions according to claim 5, characterized in that: Both mounting plates (1) are fixedly connected to a housing (8) on their tops, and stepper motors (9) are fixedly connected to the inner walls of the housing (8).

7. The buffer and protection device for blasting excavation under complex geological conditions according to claim 6, characterized in that: One of the stepper motors (9) is fixedly connected to the output end of the second output shaft (10), and the other stepper motor (9) is fixedly connected to the first output shaft (2).

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