Safety protection equipment for mining during blasting

Abstract

The utility model relates to safety protection equipment during blasting for mining, which comprises a plurality of protective fences, each protective fence comprises a positioning frame and a flexible protective net, and is technically characterized in that each positioning frame comprises a U-shaped lower frame body, an inverted U-shaped upper cover body and an inserting vertical rod connected with the lower end of a straight arm of the inverted U-shaped upper cover body, two straight arms of the U-shaped lower frame body are hollow arms, and the two straight arms of the inverted U-shaped upper cover body are hollow arms. A horizontal shaft is arranged between the two straight arms of the inverted-U-shaped upper cover body, one end of the flexible protective net is fixedly connected with the front portion of the inner bottom face of the U-shaped lower frame body, the other end of the flexible protective net moves upwards, bypasses the horizontal shaft and then moves downwards, a balancing weight is fixed, and longitudinal clamping grooves corresponding to the edges of the two sides of the flexible protective net are formed in the inner side faces of the straight arms of the U-shaped lower frame body. And a triangular adjustable supporting structure is arranged between the rear side face and the bottom face of the positioning frame. Compared with the prior art, the intercepting height can be adjusted according to needs, use is flexible and convenient, and the application range is wide.

Description

TECHNICAL FIELD

[0001] The utility model relates to mining protection technical field, concretely relates to a safety protection equipment when mining with blasting. BACKGROUND

[0002] When mining, usually use the explosion stress wave and the violent gas of blasting to complete the crushing of the ore, but the flying stone produced by crushing can cause damage to the mining equipment, based on this, the safety protection equipment needs to be set in the periphery of the blasting area.

[0003] The existing safety protection equipment is mainly the protective fence facility, the protective fence facility mainly comprises the positioning frame, the flexible protective net fixed in the positioning frame, the combination structure of the positioning frame and the flexible protective net is the fixed structure, and the following problems exist: cannot timely adjust the interception height according to the needs, and is not flexible in use, and the adaptability is narrow for the protection needs of different heights. SUMMARY

[0004] The utility model aims at providing a safety protection equipment when mining with blasting of reasonable structure, reliable use that solves above -mentioned problem compares with prior art, can adjust the interception height according to the needs, and is flexible and convenient in use, and the application range is wide.

[0005] The technical scheme of the utility model is:

[0006] A safety protection equipment when mining with blasting, including the multiple protective fences of adjacent arrangement, the protective fence includes the positioning frame and the flexible protective net, its technical key points are: the positioning frame is split type frame, and it includes U-shaped lower frame body, inverted U-shaped upper cover body, and the plug-in stand is connected with the two straight arms lower end of inverted U-shaped upper cover body, the two straight arms of U-shaped lower frame body are hollow arms, the plug-in stand is inserted into the corresponding hollow arm, the hollow arm outer surface is equipped with the positioning assembly corresponding the plug-in stand, the two straight arms between inverted U-shaped upper cover body are equipped with horizontal shaft, the flexible protective net one end is connected and fixed with the inner bottom surface front portion of U-shaped lower frame body, and the other end is up and down around horizontal shaft and then down and fixed counterweight, the straight arm inboard surface of U-shaped lower frame body is equipped with the longitudinal slot corresponding the two side edges of flexible protective net, and is equipped with the longitudinal sliding groove corresponding the two ends of counterweight, the rear side and bottom surface between positioning frame are equipped with triangular adjustable support structure.

[0007] The safety protection equipment when mining with blasting above, the triangular adjustable support structure includes the horizontal connecting plate fixed between the two straight arms of U-shaped lower frame body, the multiple upper hinged ears spaced on the horizontal connecting plate, the upper hinged shaft on the upper hinged ear, the telescopic support arm hinged to the bottom surface rear side of U-shaped lower frame body, the lower hinged shaft on the other end of telescopic support arm, and the telescopic support column connected between the upper hinged shaft and the lower hinged shaft.

[0008] The mine blasting safety protection equipment has the telescopic support composed of a screw sleeve, an upper screw rod and a lower screw rod connected to two ends of the screw sleeve, and a through hole matched with the upper hinge shaft or the lower hinge shaft at the outer end of the upper screw rod and the lower screw rod.

[0009] The mine blasting safety protection equipment has the horizontal shaft with a sliding sleeve arranged thereon to reduce the friction with the flexible protection net.

[0010] The mine blasting safety protection equipment has the lower protection cofferdam arranged at the front edge of the bottom surface of the U-shaped lower frame body, the upper protection cofferdam arranged at the top surface of the inverted U-shaped upper cover body, the lower protection cofferdam blocking the fixed end of the flexible protection net, and the lower end surface of the upper protection cofferdam being lower than the height of the horizontal shaft.

[0011] The mine blasting safety protection equipment has one straight arm of the U-shaped lower frame body with a splicing concave block arranged at the lower end and the other straight arm with a splicing convex block arranged at the lower end for splicing with the adjacent positioning frame.

[0012] The mine blasting safety protection equipment has the telescopic support composed of a screw sleeve, an upper screw rod and a lower screw rod connected to two ends of the screw sleeve, and a through hole matched with the upper hinge shaft or the lower hinge shaft at the outer end of the upper screw rod and the lower screw rod.

[0013] 1. During use, the distance between the U-shaped lower frame body and the inverted U-shaped upper cover body is adjusted according to the shielding height requirement, and in this process, the counterweight end of the flexible protection net moves upwards along the longitudinal sliding groove to adapt to the adjustment of the shielding range.

[0014] 2. To adapt to the change of the shielding height, the length of the telescopic support arm of the triangular adjustable support structure is adjusted, and then the telescopic support with the adjusted length is installed between the upper hinge shaft and the lower hinge shaft, thereby enhancing the support stability. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a structural schematic view of the utility model;

[0016] Figure 2 is Figure 1 the A-A section view of figure 1;

[0017] Figure 3 is Figure 1 the left view of figure 1;

[0018] Figure 4 is a use schematic view of the utility model.

[0019] As shown in the figure: 1. inverted U-shaped upper cover body, 2. flexible protective net, 3. plug-in vertical rod, 4. U-shaped lower frame body, 5. horizontal connecting plate, 6. screw sleeve, 7. splicing concave block, 8. counterweight, 9. lower hinged shaft, 10. telescopic support arm, 11. upper hinged lug, 12. upper hinged shaft, 13. splicing convex block, 14. upper protective cofferdam, 15. lower protective cofferdam, 16. horizontal shaft, 17. longitudinal sliding groove, 18. upper screw rod, 19. lower screw rod, 20. positioning assembly. DETAILED DESCRIPTION

[0020] The utility model will be described in detail according to the attached drawings of the specification.

[0021] As Figures 1-4 The mine exploitation with blasting safety protection equipment, including the adjacent arrangement of multiple protective fences, the protective fence includes the positioning frame and flexible protective net 2.

[0022] Among them, the positioning frame is split type frame, including U-shaped lower frame body 4, inverted U-shaped upper cover body 1, with the plug-in vertical rod 3 of two straight arms lower end of inverted U-shaped upper cover body 1 is connected, the two straight arms of U-shaped lower frame body 1 are hollow arms, the plug-in vertical rod 3 is inserted into the corresponding hollow arm, the outer surface of the hollow arm is provided with the positioning assembly 20 corresponding to the plug-in vertical rod 3. Positioning assembly 20 can be positioning screw or the like.

[0023] The two straight arms of inverted U-shaped upper cover body 1 are provided with horizontal shaft 16, one end of flexible protective net 2 is connected and fixed with the inner bottom surface front of U-shaped lower frame body 4, and the other end is up and down after bypassing horizontal shaft 16 and is fixed with counterweight 8, the inner side of the straight arm of U-shaped lower frame body 4 is provided with longitudinal slot corresponding to the two side edges of flexible protective net 4, and is provided with longitudinal sliding groove 17 corresponding to the two ends of counterweight 8, and the upper end of longitudinal sliding groove 17 is not open, to avoid the sliding of counterweight 8. The horizontal shaft 16 is provided with a sliding sleeve to reduce the friction with the flexible protective net 2.

[0024] The rear side and bottom surface of the positioning frame are provided with triangular adjustable support structure. In the embodiment, the triangular adjustable support structure includes horizontal connecting plate 5 fixed between the two straight arms of U-shaped lower frame body 4, a plurality of upper hinged lugs 11 are arranged on the horizontal connecting plate 5, upper hinged shaft 12 is arranged on the upper hinged lug 11, telescopic support arm 10 is hinged to the bottom surface of U-shaped lower frame body 4, lower hinged shaft 9 is arranged at the other end of telescopic support arm 10, and telescopic support column is connected between upper hinged shaft 12 and lower hinged shaft 9. The telescopic support column is composed of screw sleeve 6, upper screw rod 18 and lower screw rod 19 connected to both ends of screw sleeve 6, and the outer ends of upper screw rod 18 and lower screw rod 19 are respectively provided with through holes matched with upper hinged shaft 12 or lower hinged shaft 9.

[0025] The bottom surface front edge of the U-shaped lower frame body 4 is provided with a lower protective cofferdam 15, the top surface front edge of the inverted U-shaped upper cover body 1 is provided with an upper protective cofferdam 14, the lower protective cofferdam 15 blocks the fixed end of the flexible protective net 2, and the lower end surface of the upper protective cofferdam 14 is lower than the height at which the horizontal shaft 16 is located. One straight arm lower end of the U-shaped lower frame body 4 is provided with a splicing concave block 7, and the other straight arm lower end is provided with a splicing convex block 13, so as to be spliced with an adjacent positioning frame.

[0026] Working principle:

[0027] In use, according to the shielding height requirement, the distance between the U-shaped lower frame body 4 and the inverted U-shaped upper cover body 1 is adjusted, the stand rod 3 is pulled out from the two straight arms of the U-shaped lower frame body 4, and after adjustment, the positioning assembly 20 is used for fixation. In this process, the weight block 8 end of the flexible protective net 2 is longitudinally slid along the longitudinal sliding groove 17.

[0028] As the shielding height is higher, the length of the telescopic support arm 10 of the triangular adjustable support structure can be adjusted first, then the telescopic support with the adjusted length is installed between the upper and lower hinged shafts 12 and 9, and the support stability is enhanced. Finally, the positioning frames are spliced by using the splicing concave block 7 and the splicing convex block 13.

[0029] The above embodiment of the utility model is described in detail, but the content is only the preferred embodiment of the utility model, and cannot be considered as limiting the scope of the utility model. Any equivalent change and improvement within the scope of the utility model is still within the scope of the utility model.

Claims

1. A safety shield for use in mining operations involving blasting, comprising a plurality of adjacent shields, the shields comprising a positioning frame and a flexible shield net, characterised in that: The positioning frame is a split frame, which comprises a U-shaped lower frame body, an inverted U-shaped upper cover body, and a plug-in vertical rod connected with the lower ends of the two straight arms of the inverted U-shaped upper cover body, the two straight arms of the U-shaped lower frame body are hollow arms, the plug-in vertical rod is inserted into the corresponding hollow arm, the outer surface of the hollow arm is provided with a positioning assembly corresponding to the plug-in vertical rod, a horizontal shaft is arranged between the two straight arms of the inverted U-shaped upper cover body, one end of the flexible protective net is connected and fixed with the front inner bottom surface of the U-shaped lower frame body, the other end of the flexible protective net is upwardly wound around the horizontal shaft and then downwardly fixed with a counterweight, the inner side surface of the straight arm of the U-shaped lower frame body is provided with a longitudinal clamping groove corresponding to the two side edges of the flexible protective net, and is provided with a longitudinal sliding groove corresponding to the two ends of the counterweight, and a triangular adjustable support structure is arranged between the rear surface and the bottom surface of the positioning frame.

2. The mine blasting safety shield according to claim 1, characterized in that: The triangular adjustable support structure comprises a horizontal connecting plate fixed between the two straight arms of the U-shaped lower frame body, a plurality of upper hinge ears arranged on the horizontal connecting plate, an upper hinge shaft arranged on the upper hinge ear, a telescopic support arm hingedly connected to the rear side of the bottom surface of the U-shaped lower frame body, a lower hinge shaft arranged at the other end of the telescopic support arm, and a telescopic support column connected between the upper hinge shaft and the lower hinge shaft.

3. A mine blasting safety shield according to claim 2, characterised in that: The telescopic support column is composed of a screw sleeve, an upper screw rod and a lower screw rod connected at both ends of the screw sleeve, and the outer ends of the upper screw rod and the lower screw rod are respectively provided with through holes matched with the upper hinge shaft or the lower hinge shaft.

4. The mine blasting safety shield of claim 1, wherein: A sliding sleeve is arranged on the horizontal shaft.

5. The mine blasting safety shield of claim 1, wherein: A lower protective cofferdam is arranged on the front edge of the bottom surface of the U-shaped lower frame body, and an upper protective cofferdam is arranged on the top surface of the inverted U-shaped upper cover body, the fixed end of the flexible protective net is blocked by the lower protective cofferdam, and the lower end surface of the upper protective cofferdam is lower than the height of the horizontal shaft.

6. The mine blasting safety shield of claim 1, wherein: One straight arm of the U-shaped lower frame body is provided with a splicing concave block, and the other straight arm is provided with a splicing convex block.

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