Surface blasting blast hole collapse prevention structure
By using the matching structure of the support assembly and the limit assembly in the blasting hole, the problem of collapse caused by the hole wall loss when the blasting hole is filled with explosives is solved, and the effect of effectively preventing collapse and improving construction efficiency is achieved.
Patent Information
- Application Number
- CN202422352050.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-09-25
AI Technical Summary
When the existing blasting hole is filled with explosives, the hole wall will lose its support after the support structure is removed, which will easily collapse, resulting in inconvenience in construction.
The supporting components and limiting components are used to adopt a matching structure, including a base plate, an adjustment ring, a filling tube, an insertion rod, a moving plate, a shield plate, a push rod and a push plate. Through the cooperation of these components, the support force of the inner wall of the blasting hole is increased to prevent collapse.
It effectively prevents the collapse of the blasting hole wall, improves the safety and efficiency of construction, and avoids the problem of re-cleaning of collapse when filling explosives.
Smart Images
Figure CN223005449U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of ore mining equipment, and particularly relates to an anti-collapse structure for open-pit blasting holes. Background Technique
[0002] A blasting hole is a hole drilled in rock or soil with a drill or rock drill and filled with explosives for blasting or used as an artificial seismic source. Blasting holes are mostly used in open-pit mining of mines, tunneling, civil engineering construction, demolition of old buildings, removal of underwater reefs, etc. The diameter of the blasting hole is determined according to the construction requirements and the diameter of the explosive cartridge.
[0003] At present, after the opening of the blasting hole is completed, it often collapses. Therefore, support structures such as steel frames or wooden supports are needed, and the humidity management of the soil is strengthened to prevent excessive drying or wetting. However, when filling explosives, the support structure needs to be removed. After the support force of the hole wall is lost during the removal process, it will also collapse and needs to be cleaned again, which is very inconvenient to use.
[0004] Therefore, we provide an anti-collapse structure for open-pit blasting holes to solve the above problems. Content of the Utility Model
[0005] The purpose of the utility model is to provide an anti-collapse structure for open-pit blasting holes. Through the cooperation of the support component and the limit component, the problem that the hole wall will lose the support force and collapse after the support structure is removed when filling explosives in the existing technology is solved.
[0006] To solve the above technical problems, the utility model is realized through the following technical solutions:
[0007] The utility model is an anti-collapse structure for open-pit blasting holes, which includes a bottom plate. An adjusting ring is arranged on the top of the bottom plate. A filling pipe is arranged on the top of the adjusting ring. A placing rod is arranged inside the filling pipe;
[0008] A support component is arranged at the bottom of the filling pipe. The support component includes a moving plate. The moving plate is slidably connected to the inside of the bottom plate. Shading plates are fixedly connected to opposite sides of the moving plate;
[0009] A limit component is arranged on one side of the adjusting ring. The limit component includes a push rod. The push rod is fixed to one side of the moving plate. A push plate is fixedly connected to the surface of the adjusting ring.
[0010] The utility model is further arranged such that the limit component further includes a connecting plate. The connecting plate is installed on one side of the bottom plate. A screw rod is fixedly connected to the top of the connecting plate. A nut is threadedly connected to the surface of the screw rod.
[0011] The present utility model is further configured such that a chute is provided inside the push plate, and a clamping groove is provided inside the chute.
[0012] The present utility model is further configured such that the screw rod is slidably connected to the inner wall of the chute, and the diameter of the nut is the same as the inner diameter of the clamping groove.
[0013] The present utility model is further configured such that a plug rod penetrates through the top of the connecting plate, and a mounting hole is provided at the top of the connecting plate.
[0014] The present utility model is further configured such that the placing rod is slidably connected to the inner wall of the filling pipe, and the bottom of the placing rod is conical.
[0015] The present utility model is further configured such that a fixing cap is threadedly connected to the surface of the filling pipe, and the top of the placing rod is fixedly connected to the fixing cap.
[0016] The present utility model is further configured such that a scale is provided on the surface of the filling pipe, and there are three sets of shielding plates.
[0017] The present utility model has the following beneficial effects:
[0018] Through the setting of the support assembly, the present utility model can, after the blasting hole is opened, move the bottom plate to the top of the blasting hole, insert the three sets of shielding plates into the blasting hole, then rotate the adjusting ring clockwise to push the moving plate to move, and the moving plate drives the shielding plates to move and fit with the inner wall of the blasting hole, increasing the supporting force of the inner wall of the blasting hole and preventing the hole wall from collapsing. Then, insert the filling pipe and the placing rod into the blasting hole to support the bottom of the blasting hole, further improving the supporting effect.
[0019] Of course, it is not necessary for any product implementing the present utility model to simultaneously achieve all the above-mentioned advantages. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the accompanying drawings required for describing the embodiments will be briefly introduced below.
[0021] Figure 1 is a three-dimensional structure diagram of an anti-collapse structure for an open-pit blasting hole;
[0022] Figure 2 is a separation schematic diagram of the bottom plate and the adjusting ring in an anti-collapse structure for an open-pit blasting hole;
[0023] Figure 3 is an anti-collapse structure for an open-pit blasting hole Figure 2 bottom view;
[0024] Figure 4A partial cross-sectional view of a filling tube and a fixing cap in an anti-collapse structure for open-pit blasting holes;
[0025] Figure 5 A schematic diagram of the adjustment of a baffle in an anti-collapse structure for open-pit blasting holes.
[0026] In the attached drawings: 1, bottom plate; 2, adjusting ring; 3, filling tube; 4, inserting rod; 5, moving plate; 6, baffle; 7, push rod; 8, push plate; 9, connecting plate; 10, screw rod; 11, nut; 12, chute; 13, clamping groove; 14, inserting rod; 15, fixing cap; 16, scale. Detailed implementation manners
[0027] Next, the technical solutions in the embodiments of the present invention will be described in conjunction with the attached drawings in the embodiments of the present invention. The described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Specific embodiment one
[0029] Please refer to Figures 1-5 , the present invention is an anti-collapse structure for open-pit blasting holes, including a bottom plate 1. An adjusting ring 2 is arranged on the top of the bottom plate 1. A filling tube 3 is arranged on the top of the adjusting ring 2. An inserting rod 4 is arranged inside the filling tube 3; a supporting component is arranged at the bottom of the filling tube 3. The supporting component includes a moving plate 5. The moving plate 5 is slidably connected to the inside of the bottom plate 1. Baffles 6 are fixedly connected to the opposite sides of the moving plate 5; a limiting component is arranged on one side of the adjusting ring 2. The limiting component includes a push rod 7. The push rod 7 is fixed to one side of the moving plate 5. A push plate 8 is fixedly connected to the surface of the adjusting ring 2.
[0030] Specifically: The number of the moving plate 5, the baffle 6 and the push rod 7 is three groups each. When the three groups of baffles 6 move in opposite directions, they can support from the inside of the blasting hole to the outside, improving the stability of the support and preventing the stones from collapsing. The inside of the filling tube 3 is a hollow design. The inserting rod 4 can be inserted into the blasting hole together with the filling tube 3. When it is necessary to fill explosives into the blasting hole, the inserting rod 4 can be taken out first, and the explosives can be put into the blasting hole through the filling tube 3. The filling tube 3 is made of a rectangular metal sheet bent and the gap when combined is retained, so that there are vertical grooves on the surface of the filling tube 3, which can facilitate the explosive lead to pass through the vertical grooves when the filling tube 3 is taken out after the explosives are installed. Specific embodiment two
[0032] Please refer to Figures 1-5, on the basis of the first specific embodiment, the limiting component further includes a connecting plate 9. The connecting plate 9 is installed on one side of the bottom plate 1. A screw rod 10 is fixedly connected to the top of the connecting plate 9. A nut 11 is threadedly connected to the surface of the screw rod 10. A sliding groove 12 is formed inside the push plate 8, and a clamping groove 13 is formed inside the sliding groove 12. The screw rod 10 is slidably connected to the inner wall of the sliding groove 12. The diameter of the nut 11 is the same as the inner diameter of the clamping groove 13. A plug rod 14 penetrates through the top of the connecting plate 9. An installation hole is formed in the top of the connecting plate 9. The placing rod 4 is slidably connected to the inner wall of the filling pipe 3. The bottom of the placing rod 4 is conical. A fixing cap 15 is threadedly connected to the surface of the filling pipe 3. The top of the placing rod 4 is fixedly connected to the fixing cap 15. A scale 16 is arranged on the surface of the filling pipe 3. There are three groups of shielding plates 6.
[0033] Specifically: The sliding groove 12 is arc-shaped. When the adjusting ring 2 drives the push plate 8 to rotate, the screw rod 10 can slide inside the sliding groove 12. The diameter of the clamping groove 13 is the same as the inner diameter of the clamping groove 13. When the nut 11 rotates on the surface of the screw rod 10, it can be inserted into the clamping groove 13 to fix the position of the push plate 8. The plug rod 14 can be inserted into the ground after passing through the connecting plate 9 to increase stability. The surface of the filling pipe 3 and the inner wall of the fixing cap 15 are threadedly connected, which can fix the placing rod 4. The scale 16 is arranged on the surface of the filling pipe 3, which can facilitate observing the insertion depth of the blasting hole.
[0034] The working principle of the present utility model is as follows: After the blasting hole is opened, the staff can manually move the bottom plate 1 to the top of the blasting hole, and then move the bottom plate 1 downward to insert the shielding plate 6 into the blasting hole. Then step on the connecting plate 9 to stabilize the bottom plate 1, and manually rotate the adjusting ring 2. The adjusting ring 2 cooperates with the push plate 8 to push the push rod 7 to move. The push rod 7 cooperates with the moving plate 5 to drive the shielding plate 6 to move, supporting from the inside of the blasting hole to the outside, improving the stability of the support and preventing the top of the blasting hole from collapsing. Then manually rotate the nut 11 to insert the nut 11 into the clamping groove 13 to fix the position of the push plate 8;
[0035] After that, insert the placing rod 4 and the filling pipe 3 into the blasting hole to support the inner wall of the blasting hole, playing a role in preventing collapse. At the same time, when it is necessary to fill the explosive, the fixing cap 15 can be manually rotated to take out the placing rod 4, and then the explosive is put into the blasting hole through the filling pipe 3. The filling pipe 3 is made by bending a rectangular metal sheet and retains the gap when combined, so that there are vertical grooves on the surface of the filling pipe 3. When the filling pipe 3 is taken out after the explosive is installed, the explosive lead can pass through the vertical grooves, improving the construction efficiency.
[0036] The standard parts used in the present utility model can all be purchased from the market, and can also be customized according to the descriptions in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, welding, etc. that are mature in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art. The control method is automatically controlled through a control unit. The control circuit of the control unit can be realized by simple programming by those skilled in the art, which belongs to the common general knowledge in the art. Therefore, the control method and circuit connection will not be explained in detail in the present utility model.
[0037] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific embodiments described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the relevant technical field can well understand and utilize the present utility model.
Claims
1. An open-air blasting blasthole anti-collapse structure, comprising a bottom plate (1), characterized in that: An adjusting ring (2) is arranged on the top of the bottom plate (1), a filling tube (3) is arranged on the top of the adjusting ring (2), and an insertion rod (4) is arranged inside the filling tube (3); A support assembly is provided at the bottom of the filling tube (3), the support assembly comprising a movable plate (5), the movable plate (5) being slidably connected to the inside of the bottom plate (1), and a shielding plate (6) being fixedly connected to opposite sides of the movable plate (5); A limit assembly is provided on one side of the adjustment ring (2), the limit assembly comprising a push rod (7), the push rod (7) is fixed to one side of the moving plate (5), and a push plate (8) is fixedly connected to the surface of the adjustment ring (2).
2. The open-air blasting blasthole anti-collapse structure according to claim 1, characterized in that: The limiting assembly also includes a connecting plate (9), the connecting plate (9) is mounted on one side of the base plate (1), a screw rod (10) is fixedly connected to the top of the connecting plate (9), and a nut (11) is threadedly connected to the surface of the screw rod (10).
3. The open-air blasting blasthole anti-collapse structure according to claim 1, characterized in that: A sliding groove (12) is provided inside the push plate (8), and a clamping groove (13) is provided inside the sliding groove (12).
4. The open-air blasting blasthole anti-collapse structure according to claim 2, characterized in that: The screw rod (10) is slidably connected to the inner wall of the slide groove (12), and the diameter of the nut (11) is the same as the inner diameter of the clamping groove (13).
5. The open-air blasting blasthole anti-collapse structure according to claim 2, characterized in that: An insertion rod (14) is provided through the top of the connecting plate (9), and a mounting hole is provided on the top of the connecting plate (9).
6. The open-air blasting blasthole anti-collapse structure according to claim 1, characterized in that: The insertion rod (4) is slidably connected to the inner wall of the filling tube (3), and the bottom of the insertion rod (4) is conical.
7. The open-air blasting blasthole anti-collapse structure according to claim 1, characterized in that: A fixing cap (15) is threadedly connected to the surface of the filling tube (3), and the top of the insertion rod (4) is fixedly connected to the fixing cap (15).
8. The open-air blasting blasthole anti-collapse structure according to claim 1, characterized in that: The surface of the filling tube (3) is provided with a scale (16), and the shielding plates (6) are provided in three groups.