A crushed stone protection device for mining

Abstract

The utility model discloses a gravel protection device for mining, which relates to the field related to mining. In order to solve the problem that the impact force of gravel on the protective device in the prior art is large, the protective plate moves along the impact direction, and the lower end of the protective device is fixed to the ground, and the connection position between the protective plate and the lower end is easy to deform or even break, which affects the long-term use of the protective device. The reinforcement unit includes a C-shaped connecting plate, a vertical pole is vertically fixed in the C-shaped connecting plate, and trapezoidal plates are symmetrically arranged at the upper and lower ends of the outer side of the vertical pole; a connecting column is fixed to the rear end of the protective plate along the front end of the trapezoidal plate, and a through-through groove is opened in the connecting column from top to bottom, and the trapezoidal plate passes through the through-through groove, and the front end surface of the through-through groove is an inclined surface, and the inclined surface fits the inclined surface of the trapezoidal plate.

Description

Technical Field

[0001] The utility model relates to the field related to mining, in particular to a crushed stone protection device used in mining. Background Art

[0002] There are many safety hazards in the process of ore mining, such as collapse, gas accumulation, fire, etc., which seriously threaten the life safety of operators and the stable operation of equipment. The ore mining environment is complex and changeable. The instability of geological structure, the risk of collapse of mine pits and mine tunnels, the accumulation of a large amount of flammable and explosive gas, the dryness of the mining environment and the presence of a large amount of combustibles make mining a high-risk operation. In the process of ore mining, perforation blasting and mining and loading systems are one of the key links. The perforation blasting operation breaks the ore through the explosive force of explosives, but this process is often accompanied by the problem of gravel splashing. The splashing gravel has a large kinetic energy. Once it hits the operator or equipment, it will cause serious injuries and losses. Therefore, gravel protection has become an indispensable part of the mining process.

[0003] The use of gravel protection devices in mining needs to take into account the complexity of the mining environment and the characteristics of gravel splash. Through reasonable structural layout and optimized protection mechanism, effective interception and dispersion of gravel splash can be achieved, achieving comprehensive protection against gravel splash and ensuring the safety of operators and equipment.

[0004] When the protective device is protecting, the gravel has a great impact on it, and the protective plate moves along the impact direction. However, the lower end of the protective device is fixed to the ground, and the connection between the protective plate and the lower end is prone to deformation or even breakage, affecting the long-term use of the protective device. Utility Model Content

[0005] The purpose of the utility model is to provide a gravel protection device for mining, so as to solve the problem that when the protective device proposed in the above-mentioned background technology is used for protection, the impact force of gravel on it is large, the protective plate moves along the impact direction, and the lower end of the protective device is fixed to the ground, and the connection position between the protective plate and the lower end is easy to deform or even break, which affects the long-term use of the protective device.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a crushed stone protection device for mining, comprising a protection plate and a mounting plate, wherein a reinforcement unit is arranged between the protection plate and the mounting plate;

[0007] The reinforcement unit comprises a C-shaped connecting plate, a vertical rod is vertically fixed in the C-shaped connecting plate, trapezoidal plates are symmetrically arranged at the upper and lower ends of the outer part of the vertical rod, the trapezoidal plates slide along the vertical rod, the inclined surface of the trapezoidal plates faces the direction of the protective plate and tilts outward, a first fixed seat is fixed to the inner end of the trapezoidal plate along the front end of the vertical rod, a linkage rotating rod is connected to the first fixed seat by shaft rotation, the other end of the linkage rotating rod extends into the second fixed seat and is connected to the second fixed seat by shaft rotation, and the front ends of the two second fixed seats are commonly connected to a reverse motion reinforcement plate;

[0008] A connecting column is fixed at the rear end of the protective plate along the front end of the trapezoidal plate. A through slot is opened up and down in the connecting column. The trapezoidal plate passes through the through slot. The front end surface of the through slot is an inclined surface, which fits the inclined surface of the trapezoidal plate.

[0009] Preferably, the reverse motion reinforcement plate is a rectangular plate.

[0010] Preferably, the reverse motion reinforcement plate is an "H"-shaped plate.

[0011] Preferably, the reverse motion reinforcement plate is a rectangular plate with holes opened at the four corners of the end surface and at the upper and lower ends of the end surface.

[0012] Preferably, a protective net fixing frame and a protective net main body are provided at the front end of the protective plate, and the protective net main body is fixed inside the protective net fixing frame.

[0013] Preferably, sliding rods are fixed at the four corners of the rear end of the protective net fixing frame, the sliding rods pass through the protective plate, extend to the rear end of the protective plate and are slidably connected to the protective plate, and a first pressure spring is arranged between the protective net fixing frame and the protective plate along the outside of the sliding rods.

[0014] Preferably, the rear end of the connecting column passes through the C-shaped connecting plate and is fixed with a limiting disk, the connecting column slides along the C-shaped connecting plate, and a second pressure spring is arranged between the limiting disk and the C-shaped connecting plate along the outside of the connecting column.

[0015] Preferably, a fixing pier is fixed to the lower end of the mounting vertical plate, and a mounting plate is fixed to the outside of the fixing pier.

[0016] Preferably, a mounting T-shaped bracket is welded and fixed in the middle of the rear end of the C-shaped connecting plate, and the mounting T-shaped bracket is fixed to the mounting vertical plate by bolts.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. In the utility model, the reinforcement unit includes a C-shaped connecting plate, a vertical pole, a trapezoidal plate, a first fixed seat, a linkage rotating rod, a second fixed seat and a reverse motion reinforcement plate. The trapezoidal plate slides along the vertical pole in a limited position, and its inclined surface faces the direction of the protective plate and tilts outward. When the gravel hits the protective plate, the trapezoidal plate moves toward the middle direction along the vertical pole. Through the connection relationship between the linkage rotating rod and the second fixed seat, the reverse motion reinforcement plate moves forward to resist the protective plate and reduce its backward movement distance, thereby preventing its lower end from moving too far due to the impact, breaking through the installation position on the ground, and causing the overall structure to break. This solves the problem that when the protective device is currently protected, the gravel has a large impact force on it, the protective plate moves along the impact direction, and the lower end of the protective device is fixed to the ground. The connection position between the protective plate and the lower end is prone to deformation or even breakage, which affects the long-term use of the protective device. The impact force of the gravel is used to automatically trigger the reinforcement mechanism, without the need for an external power source, reducing costs and maintenance difficulties.

[0019] 2. In the utility model, the reverse motion reinforcement plate can be in different shapes such as a rectangular plate, an "H"-shaped plate, or a rectangular plate with holes at the four corners and the upper and lower ends of the end surface. The shape can be adjusted according to actual needs, so that the device can adapt to different application scenarios and impact strengths, and improve flexibility and applicability.

[0020] 3. In the utility model, a protective net fixing frame and a protective net main body are arranged at the front end of the protective plate. The protective net main body is fixed inside the protective net fixing frame, which can intercept most of the gravel and reduce the impact pressure of the protective plate. This combination design of the protective net main body and the protective plate can further improve the protection effect and extend the service life of the protective device.

[0021] 4. In the utility model, the design of sliding and spring buffering can reduce the direct impact of gravel on the protective device, enhance stability and durability, and the addition of the second pressure spring can further enhance the buffering capacity and improve overall safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of a crushed stone protection device for mining of the utility model from a main perspective;

[0023] Figure 2 It is a schematic diagram of the overall structure of a rock crushing protection device for mining of the utility model from a rear perspective;

[0024] Figure 3 It is a top view of a crushed stone protection device for mining of the utility model;

[0025] Figure 4 It is a side view of a crushed stone protection device for mining of the utility model;

[0026] Figure 5 This is a structural schematic diagram of a reinforcement unit of a crushed stone protection device for mining according to the utility model;

[0027] Figure 6 This is a schematic diagram of the connection structure of a T-shaped bracket, a C-shaped connecting plate and a vertical pole for installing a crushed stone protection device for mining of the utility model;

[0028] Figure 7 The utility model is a cross-sectional view of a connecting column of a crushed stone protection device for mining.

[0029] In the figure: 1. protective net fixing frame; 2. protective net main body; 3. protective plate; 4. sliding rod; 5. first pressure spring; 6. installation vertical plate; 7. fixing pier; 8. reinforcement unit; 9. installation T-shaped bracket; 10. C-shaped connecting plate; 11. vertical pole; 12. trapezoidal plate; 13. first fixed seat; 14. linkage rotating rod; 15. second fixed seat; 16. reverse motion reinforcement plate; 17. connecting column; 18. limit plate; 19. second pressure spring; 20. through-through slot; 21. inclined surface. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0031] See also Figure 1-7 , an embodiment provided by the utility model:

[0032] Overall structure: A gravel protection device for mining, including a protective plate 3 and a mounting plate 6, a fixing pier 7 is fixed at the lower end of the mounting plate 6, and a mounting plate is fixed outside the fixing pier 7. The whole device can be firmly installed at the mining site and is not prone to tipping or shaking. Reinforcement unit 8: Located between the protective plate 3 and the mounting plate 6, the reinforcement unit 8 significantly improves the impact resistance of the device, making the device safer and more reliable when facing gravel impact. The reinforcement unit 8 includes a C-shaped connecting plate 10, and a mounting T-shaped bracket 9 is welded and fixed in the middle of the rear end of the C-shaped connecting plate 10, and the mounting T-shaped bracket 9 is fixed to the mounting plate 6 by bolts; a vertical pole 11 is vertically fixed inside the C-shaped connecting plate 10. Trapezoidal plates 12 are symmetrically arranged at the upper and lower ends of the outside of the vertical pole 11, and the trapezoidal plate 12 slides along the vertical pole 11. The inclined surface of the trapezoidal plate 12 faces the protective plate 3 and tilts outward. A first fixed seat 13 is fixed to the inner end of the trapezoidal plate 12 along the front end of the vertical upright 11, and a linkage rotating rod 14 is connected to the first fixed seat 13 through an axis rotation. The other end of the linkage rotating rod 14 extends into the second fixed seat 15 and is connected to the second fixed seat 15 through an axis rotation. The front ends of the two second fixed seats 15 are commonly connected to a reverse motion reinforcement plate 16. A connecting column 17 is fixed to the rear end of the protective plate 3 along the front end of the trapezoidal plate 12, and a through-through groove 20 is opened in the connecting column 17 from top to bottom. The trapezoidal plate 12 passes through the through-through groove 20, and the front end surface of the through-through groove 20 is an inclined surface 21, and the inclined surface 21 is in contact with the inclined surface of the trapezoidal plate 12.

[0033] The unique design of the reinforcement unit 8 enables the device to convert the impact force into the forward movement force of the reverse motion reinforcement plate 16 through the sliding of the trapezoidal plate 12 and the rotation of the linked rotating rod 14 when impacted by gravel, thereby effectively reducing the backward movement distance of the protective plate 3 and improving the protective effect.

[0034] Various forms of the reverse motion reinforcement plate 16: The reverse motion reinforcement plate 16 can be a rectangular plate (as shown in the figure), an "H"-shaped plate (the two sides can be strengthened) or a rectangular plate with holes at the four corners of the end face and the upper and lower ends of the end face (the holes at the four corners of the end face are to avoid the sliding rod 4 and the first pressure spring 5, and the holes at the upper and lower ends of the end face are to avoid the trapezoidal plate 12). The combined design of the protective net body 2 and the protective plate 3: The front end of the protective plate 3 is provided with a protective net fixing frame 1 and a protective net body 2, and the protective net body 2 is fixed inside the protective net fixing frame 1. This design enables the device to first intercept most of the gravel through the protective net body 2, and then the protective plate 3 further protects the remaining gravel. Through the combined design of the protective net body 2 and the protective plate 3, multiple protections against gravel are achieved, greatly improving the protection effect of the device. Sliding rods 4 are fixed at the four corners of the rear end of the protective net fixing frame 1, and the sliding rods 4 pass through the protective plate 3 and extend to the rear end of the protective plate 3 and are slidably connected with the protective plate 3. A first pressure spring 5 is arranged between the protective net fixing frame 1 and the protective plate 3 along the outside of the sliding rod 4. The protective net fixing frame 1 can move backward when subjected to impact force, and is buffered by the first pressure spring 5, providing an additional buffer layer, further improving the impact resistance of the device.

[0035] The connection column 17 and the second pressure spring 19 are arranged: the rear end of the connection column 17 passes through the C-shaped connection plate 10 and is fixed with the limit plate 18, and the connection column 17 slides along the C-shaped connection plate 10. A second pressure spring 19 is arranged between the limit plate 18 and the C-shaped connection plate 10 along the outside of the connection column 17. This design enables the connection column 17 to move backward when subjected to impact force, and to be buffered twice by the second pressure spring 19. The arrangement of the connection column 17 and the second pressure spring 19 provides a double buffer mechanism for the device, so that the device can still remain stable when facing a huge impact force.

[0036] After being impacted, the first pressure spring 5 and the second pressure spring 19 have a reaction force on the pressure source due to their own characteristics, thereby achieving the purpose of buffering; even if the self-structure will rebound in a cyclic reduction manner due to the existence of the first pressure spring 5 and the second pressure spring 19, it will not affect the buffering effect of the impact.

[0037] Working principle: gravel hits the protective net body 2 through shock waves, and the protective net body 2 intercepts gravel larger than the mesh size of the protective net body 2, and some gravel hits the protective plate 3 along the mesh size of the protective net body 2; the impact force is transmitted to make the protective net fixing frame 1 move backward synchronously, and the impact force is transmitted to the first pressure spring 5, and the first pressure spring 5 performs buffering.

[0038] When the larger gravel impacts the protective net body 2 and causes the protective net body 2 to move backward to the limit state, it continues to impact the protective plate 3; the protective plate 3 resists and protects the unintercepted gravel and the transmitted impact force, the protective plate 3 will move backward, and the connecting column 17 will move backward synchronously, driving the second pressure spring 19 to move and deform, and the impact force is reduced for the second time through the elastic action of the second pressure spring 19. When the connecting column 17 moves backward, because the inclined surface 21 fits the inclined surface of the trapezoidal plate 12, and the inclined surface of the trapezoidal plate 12 faces the direction of the protective plate 3 and tilts outward, the trapezoidal plate 12 moves toward the middle direction along the vertical pole 11, driving the first fixed seat 13 to move toward the middle, and through the connection relationship between the first fixed seat 13, the linkage rotating rod 14 and the second fixed seat 15, the reverse motion reinforcement plate 16 moves forward to resist the protective plate 3, reducing the backward movement distance of the protective plate 3.

[0039] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A rock crushing protection device for mining, comprising a protection plate (3) and a mounting plate (6), characterized in that: A reinforcement unit (8) is provided between the protective plate (3) and the mounting vertical plate (6); The reinforcement unit (8) comprises a C-shaped connecting plate (10), a vertical pole (11) being vertically fixed inside the C-shaped connecting plate (10), trapezoidal plates (12) being symmetrically arranged at the upper and lower ends of the outer side of the vertical pole (11), the trapezoidal plates (12) sliding along the vertical pole (11) in a limited manner, the inclined surface of the trapezoidal plates (12) facing the direction of the protective plate (3) and tilting outwards, a first fixed seat (13) being fixed at the inner end of the trapezoidal plate (12) along the front end of the vertical pole (11), a linkage rotating rod (14) being rotatably connected to the first fixed seat (13) via an axis, the other end of the linkage rotating rod (14) extending into a second fixed seat (15) and being rotatably connected to the second fixed seat (15) via an axis, and a reverse motion reinforcement plate (16) being commonly connected to the front ends of the two second fixed seats (15); A connecting column (17) is fixed at the rear end of the protective plate (3) along the front end of the trapezoidal plate (12), a through slot (20) is provided in the connecting column (17) from top to bottom, the trapezoidal plate (12) passes through the through slot (20), and the front end surface of the through slot (20) is an inclined surface (21), which is in contact with the inclined surface of the trapezoidal plate (12).

2. A rock crushing protection device for mining according to claim 1, characterized in that: The reverse motion reinforcement plate (16) is a rectangular plate.

3. The device for protecting against crushed stones in mining according to claim 1, characterized in that: The reverse motion reinforcement plate (16) is an "H"-shaped plate.

4. The device for protecting against crushed stones in mining according to claim 1, characterized in that: The reverse motion reinforcement plate (16) is a rectangular plate with holes opened at the four corners of the end surface and at the upper and lower ends of the end surface.

5. The device for protecting against crushed stones in mining according to claim 1, characterized in that: A protection net fixing frame (1) and a protection net main body (2) are provided at the front end of the protection plate (3); the protection net main body (2) is fixed inside the protection net fixing frame (1).

6. The rock crushing protection device for mining according to claim 5, characterized in that: Sliding rods (4) are fixed at the four corners of the rear end of the protective net fixing frame (1); the sliding rods (4) pass through the protective plate (3) and extend to the rear end of the protective plate (3) and are slidably connected to the protective plate (3); and a first pressure spring (5) is arranged between the protective net fixing frame (1) and the protective plate (3) along the outside of the sliding rods (4).

7. The rock crushing protection device for mining according to claim 1, characterized in that: The rear end of the connecting column (17) passes through the C-shaped connecting plate (10) and is fixed with a limiting plate (18). The connecting column (17) slides along the C-shaped connecting plate (10) in a limited manner. A second pressure spring (19) is provided between the limiting plate (18) and the C-shaped connecting plate (10) along the outside of the connecting column (17).

8. The rock crushing protection device for mining according to claim 1, characterized in that: A fixing pier (7) is fixed to the lower end of the mounting upright plate (6), and a mounting plate is fixed to the outside of the fixing pier (7).

9. The rock crushing protection device for mining according to claim 1, characterized in that: A mounting T-shaped bracket (9) is welded and fixed in the middle of the rear end of the C-shaped connecting plate (10), and the mounting T-shaped bracket (9) is fixed to the mounting vertical plate (6) by bolts.

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