Mine blasting safety blocking net device
By designing a safety barrier device for mine blasting, and utilizing a combination of inclined and horizontal barriers with a spring buffer structure, the safety hazards caused by rolling rocks during mine blasting were solved. This effectively blocked the falling rocks and reduced their kinetic energy, thereby improving mining safety.
Patent Information
- Application Number
- CN202520274153.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-20
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-02-20
AI Technical Summary
During mine blasting, falling rocks can easily detach from the mountain structure due to impact, making it impossible for protective nets to effectively stop the falling rocks. The rolling rocks can cause uncontrollable damage and affect mining safety.
A safety barrier device for mine blasting was designed, including a bottom support, an inclined barrier mechanism, and a horizontal barrier mechanism. The device utilizes a push structure to adjust the angle, combined with a spring buffer structure and anchor bolts, to effectively block and buffer falling rocks, thereby reducing kinetic energy.
Effectively blocking falling rocks and preventing them from rolling, the combination of inclined and horizontal barrier nets, along with a spring buffer structure, reduces the kinetic energy of falling rocks, ensuring safe mining.
Smart Images
Figure CN223882872U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of mine safety protection, especially relates to a mine blasting safety screen device. BACKGROUND
[0002] The mountain structure often needs to be handled by blasting in the process of mining, and the workload of mining the mountain by artificial is reduced by blasting. In the process of blasting the mountain, the strong blasting force causes the mountain structure, especially the broken surface of the mountain, to easily produce rockfall.
[0003] The specific reason is that the impact force generated by blasting causes the mountain structure to vibrate, and the slope structure is more likely to cause the rock and stone to peel off under the action of vibration. The slope structure of the mountain is often steep and has a large height, so that the falling rock is easy to hit the equipment and people during the work process. The specific reason is that the rock has a large kinetic energy and is easy to roll.
[0004] Therefore, in the actual work process, the rock is prevented from falling by hanging the protective net on the slope structure to support the slope. However, it is found in the actual work process that the peeled rock, especially the stone with a large volume, cannot be effectively prevented from falling by the protective net, and the stone is easy to break through the protective net and continue to fall to the ground to roll.
[0005] The fatal rolling movement of the stone makes the destructive power of the rockfall uncontrollable. Specifically, the rolling of the rockfall is a random rolling manner, so how to avoid the stone on the slope structure from peeling off and falling to the ground to roll during the process of mining and blasting in the mine becomes one of the important problems for providing the safety of mining operation. CONTENT OF THE UTILITY MODEL
[0006] Based on the above background, the purpose of the utility model is to provide a mine blasting safety screen device.
[0007] To achieve the above purpose, the utility model adopts the following technical scheme:
[0008] A mine blasting safety screen device, comprising a bottom support, the bottom support is hinged with an inclined screen mechanism, the inclined screen mechanism comprises a screen frame, the screen frame is fixedly connected with a first screen inside;
[0009] The bottom support is provided with a pushing structure for pushing the inclined screen mechanism to flip and adjust the angle;
[0010] The bottom support is hinged with a horizontal screen mechanism, the horizontal screen mechanism comprises a horizontally arranged screen frame, the screen frame is fixedly connected with a second screen inside; the front and rear side walls of the screen frame are respectively hinged with inclined support frames, and the inclined support frames are hinged on the bottom support.
[0011] The spring buffering structure is hinged on the bottom support and hinged on the net rack.
[0012] Preferably, the bottom support comprises support parts arranged at intervals in front and back, and connecting shafts are fixedly connected between the support parts.
[0013] Preferably, the top of the net rack is fixedly connected with ear seats on both sides, long fixed shafts are fixedly connected between the ear seats, and the pushing structure is hinged on the long fixed shafts.
[0014] Preferably, the pushing structure comprises a pushing oil cylinder hinged on the connecting shaft, and an ear seat plate is fixedly connected to the cylinder barrel of the pushing oil cylinder and hinged on the connecting shaft.
[0015] Preferably, a hinge seat is fixedly connected to the plunger rod of the pushing oil cylinder, and the long fixed shaft is hinged on the hinge seat.
[0016] Preferably, hinge arms are hinged on the upper part of the support, and the hinge arms are hinged on the center part of the side wall of the net rack through a pin shaft.
[0017] Preferably, support structures are hinged on the lower end of the side wall of the net rack.
[0018] The support structure comprises support arms arranged in a hinge manner, support convex seats are integrally formed on the outer end of the support arms, and a plurality of anchor screws are slidingly installed on the support convex seats.
[0019] Preferably, mounting shafts are fixedly connected to the outer end of the net rack, the upper end of the spring buffering structure is hinged on the mounting shafts, and the lower end of the spring buffering structure is hinged on the connecting shafts.
[0020] Preferably, the spring buffering structure comprises a hinge end seat hinged on the mounting shafts, connecting rods are fixedly connected to the hinge end seat, connecting seats are fixedly connected to the connecting rods, and a sliding rod body is slidingly connected in a sliding sleeve pipe.
[0021] A spring is sleeved on the sliding rod body, and both ends of the spring are fixedly connected to the connecting seat and the sliding sleeve pipe.
[0022] Preferably, a hinge sleeve is fixedly connected to the bottom of the sliding sleeve pipe, and the hinge sleeve is hinged on the connecting shafts.
[0023] The utility model has the following beneficial effects:
[0024] 1. During the working process, the operator places the whole device below the slope surface of the mountain, pulls the inclined blocking net mechanism to the inclined blocking net mechanism through the pushing oil cylinder, and turns the inclined blocking net mechanism to the slope surface of the slope.
[0025] When the falling rock falls, it hits the first barrier net at this time. Because the first barrier net and the net rack are inclined, the falling rock hits the barrier net and is limited between the space between the first barrier net and the slope body. In this way, the falling rock is blocked to avoid rolling.
[0026] 2. During the working process, the operator places the entire device below the slope surface of the mountain body, and pulls the inclined barrier net mechanism to the inclined barrier net mechanism by pushing the oil cylinder to turn to the slope surface.
[0027] When the falling rock falls, it hits the first barrier net at this time. Because the first barrier net and the net rack are inclined, the falling rock hits the barrier net and is limited between the space between the first barrier net and the slope body. In this way, the falling rock is blocked to avoid rolling.
[0028] In order to increase the stability of the first barrier net and the net rack structure limiting the falling rock, the side wall lower end of the above-mentioned net rack is respectively hinged with a support structure; the support structure includes a hinged support arm (the support arm is hinged on the net rack through a pin shaft), the outer end of the support arm is integrally formed with a protruding support boss, and a plurality of anchor screws are slidingly installed on the support boss.
[0029] During the working process, when the net rack is turned and inclined, the anchor screw is anchored on the slope body, and in this way the first barrier net and the net rack structure are positioned and supported on the slope body, realizing the increase of stability and providing resistance to the impact force of the falling rock.
[0030] 3. During the working process, when the falling rock falls on the second barrier net, the second barrier net turns under the action of the impact force of the falling rock, and in the turning process, the sliding rod body slides into the sliding sleeve pipe, and in this process, the spring is compressed.
[0031] In this way, when the falling rock falling trajectory is too large from the slope body, it cannot hit the first barrier net, and at this time, the horizontally arranged second barrier net (with a larger blocking length) receives the falling rock, and the falling rock hits and turns, and in the turning process, the spring is deformed to form a buffer to buffer the impact force of the falling rock, and then the second barrier net continues to turn, and the falling rock rolls off the second barrier net, at this time the kinetic energy of the falling rock is greatly reduced, realizing the short distance rolling and stopping of the falling rock. After the falling rock leaves the second barrier net, the second barrier net is reset under the elastic restoring force of the spring. BRIEF DESCRIPTION OF DRAWINGS
[0032] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0033] Figure 1 This is a schematic diagram of the overall structure in an embodiment of the present utility model;
[0034] Figure 2 This is a schematic diagram of the spring buffer structure in an embodiment of the present invention;
[0035] Figure 3 This is an embodiment of the present utility model. Figure 1 Another structural diagram from a different perspective;
[0036] Figure 4 This is an embodiment of the present utility model. Figure 1 The left view in the middle;
[0037] Figure 5 This is an embodiment of the present utility model. Figure 3 Another structural diagram from a different perspective.
[0038] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0040] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0041] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can be explicitly or implicitly included at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.
[0042] Embodiment 1
[0043] As Figures 1-5 shown, a mine blasting safety net device, including bottom support, the specific structure of bottom support is: the bottom support includes support part 3 arranged at intervals, the right end of support part 3 is fixedly connected with connecting shaft.
[0044] At the same time, the bottom support is hinged with the inclined net mechanism, the inclined net mechanism includes the net rack 11 (the net rack 11 is a frame structure), the first net 12 is fixedly connected in the net rack 11, and the first net 12 is a metal net.
[0045] The above-mentioned bottom support is provided with a pushing structure for pushing the inclined net mechanism to overturn and adjust the angle, specifically, the pushing structure includes a pushing oil cylinder 4 hinged on the connecting shaft 31 (the specific hinged mode is that the plunger rod of the pushing oil cylinder 4 is fixedly connected with a hinge seat 411, and the hinge seat 411 is hinged on the long fixed shaft 14), and the cylinder barrel of the pushing oil cylinder 4 is fixedly connected with an ear seat plate, and the ear seat plate is hinged on the connecting shaft 31.
[0046] At the same time, the top of the net rack 11 is fixedly connected with the ear seat on both sides, the long fixed shaft 14 is fixedly connected between the ear seats, and the pushing structure is hinged on the long fixed shaft 14.
[0047] The hinge arm 2 is hinged on the support part 3, and the hinge arm 2 is hinged on the center part of the side wall of the net rack through the pin shaft.
[0048] During operation, the operator places the whole device below the position of the mountain slope surface, pulls the inclined net mechanism to the position of the inclined net mechanism overturning and hugging the slope surface through the pushing oil cylinder 4.
[0049] When the rockfall falls, the rockfall hits the first net 12 at this time, because the first net 12 and the net rack 11 are inclined, therefore, the rockfall hits the first net 12 and is limited between the space between the first net 12 and the slope body, and the rockfall is prevented from rolling through the mode.
[0050] In order to increase the stability of the first retaining net 12, the net rack structure limits the rockfall, the lower end of the side wall of the above-mentioned net rack 11 is respectively hinged with a support structure; the support structure comprises a support arm 13 hingedly arranged (the support arm 13 is hingedly arranged on the net rack 11 through a pin shaft), the outer end of the support arm 13 is integrally formed with a protruding support boss 131, and a plurality of anchor screws 1311 are slidingly installed on the support boss 131.
[0051] In the working process, when the net rack 11 is tilted and turned over, the anchor screw 1311 is anchored on the slope body, and in this way, the first retaining net 12, the net rack structure is positioned and supported on the slope body, the stability is increased, and the impact force resisting the rockfall is provided.
[0052] Embodiment 2
[0053] As Figures 1-5 shown, on the basis of the structure of embodiment 1, the bottom support is hingedly arranged with a horizontal retaining net mechanism, the horizontal retaining net mechanism comprises a horizontally arranged retaining net rack 6, and the retaining net rack 6 is fixedly connected with a second retaining net 61; the front and rear side walls of the retaining net rack 6 are respectively hingedly arranged with inclined support racks 5, and the inclined support racks 5 are hingedly arranged on the bottom support.
[0054] Meanwhile, the bottom support is hingedly arranged with a spring buffer structure 7, and the spring buffer structure 7 is hingedly arranged on the net rack 11. The outer end of the retaining net rack 6 is fixedly connected with a mounting shaft 72, the upper end of the spring buffer structure 7 is hingedly arranged on the mounting shaft 72, and the lower end of the spring buffer structure 7 is hingedly arranged on the connecting shaft 31.
[0055] The spring buffer structure 7 comprises a hinged end seat hingedly arranged on the mounting shaft 72, the hinged end seat is fixedly connected with a connecting rod 71, the connecting rod 71 is fixedly connected with a connecting seat 711, the connecting seat 711 is fixedly connected with a sliding rod body slidingly connected in a sliding sleeve pipe 74; a spring 73 is sleeved on the sliding rod body, and the two ends of the spring 73 are respectively fixedly connected on the connecting seat and the sliding sleeve pipe 74.
[0056] The bottom of the above-mentioned sliding sleeve pipe 74 is fixedly connected with a hinged sleeve, and the hinged sleeve is hingedly arranged on the connecting shaft 31.
[0057] In the working process, when the rockfall falls on the second retaining net 61, at this time, under the action of the impact force of the rockfall, the second retaining net 61 is turned over, in the turning process, the sliding rod body slides and retracts into the sliding sleeve pipe 74, and in this process, the spring is compressed.
[0058] In this way, when the falling trajectory of the rockfall is too large from the slope body and cannot hit the first blocking net 12, the second blocking net 61 (with a larger blocking length) horizontally arranged can receive the rockfall, and the rockfall is flipped and the spring 73 is deformed to form a buffer to buffer the impact force of the falling rock, and then the second blocking net 61 continues to flip, and the rockfall rolls off the second blocking net 61, at this time, the kinetic energy of the rockfall is greatly reduced, and the rockfall stops after a short distance of rolling. After the rockfall leaves the second blocking net 61, the second blocking net 61 is reset under the elastic restoring force of the spring.
[0059] Of course, the above description is not a limitation of the present application, and the present application is not limited to the above examples. Changes, modifications, additions or replacements made by those skilled in the art within the scope of the present application should also be within the scope of the present application.
Claims
1. A mine blasting safety screen device, characterised in that, Including bottom support, the bottom support is hinged with inclined blocking net mechanism, the inclined blocking net mechanism includes net rack, the first blocking net is fixedly connected in the net rack; The bottom support is provided with a pushing structure for pushing the inclined blocking net mechanism to overturn and adjust the angle; The bottom support is hinged with horizontal blocking net mechanism, the horizontal blocking net mechanism includes horizontally arranged blocking net rack, the second blocking net is fixedly connected in the blocking net rack, the front and rear sidewalls of the blocking net rack are respectively hinged with inclined support frame, and the inclined support frame is hinged on the bottom support; The bottom support is hinged with spring buffer structure, and the spring buffer structure is hinged on the net rack.
2. A mine blast safety screen device according to claim 1, characterised in that, The bottom support includes support parts arranged at intervals in front and back, and the support parts are fixedly connected with connecting shafts.
3. The mine blasting safety screen device of claim 1, wherein, The top of the net rack is fixedly connected with ear seats on both sides, the ear seats are fixedly connected with a long fixed shaft, and the pushing structure is hinged on the long fixed shaft.
4. A mine blast safety screen device according to claim 3, characterised in that, The pushing structure includes a pushing oil cylinder hinged on the connecting shaft, and the cylinder barrel of the pushing oil cylinder is fixedly connected with an ear plate, and the ear plate is hinged on the connecting shaft.
5. A mine blast safety screen device according to claim 4, characterised in that, The plunger rod of the pushing oil cylinder is fixedly connected with a hinged seat, and the hinged seat is hinged on the long fixed shaft.
6. The mine blasting safety screen device of claim 1, wherein, The support upper portion is hinged with a hinged arm, and the hinged arm is hinged on the sidewall center of the net rack through a pin shaft.
7. The mine blasting safety screen device of claim 1, wherein, The sidewall lower end of the net rack is hinged with a support structure; The support structure includes a support arm arranged in a hinged mode, the outer end of the support arm is integrally formed with a protruding support protruding seat, and a plurality of anchor screws are slidingly installed on the support protruding seat.
8. The mine blasting safety screen device of claim 2, wherein, The outer end of the blocking net rack is fixedly connected with a mounting shaft rod, the upper end of the spring buffer structure is hinged on the mounting shaft rod, and the lower end of the spring buffer structure is hinged on the connecting shaft.
9. A mine blast safety screen device according to claim 8, characterised in that, The spring buffer structure includes a hinged end seat hinged on the mounting shaft rod, the hinged end seat is fixedly connected with a connecting rod, the connecting rod is fixedly connected with a connecting seat, the connecting seat is fixedly connected with a sliding rod body slidingly connected in a sliding sleeve pipe; The sliding rod body is sleeved with a spring, and the two ends of the spring are fixedly connected with the connecting seat and the sliding sleeve pipe respectively.
10. A mine blast safety screen device according to claim 9, characterised in that, The bottom of the sliding sleeve pipe is fixedly connected with a hinged sleeve, and the hinged sleeve is hinged on the connecting shaft.