Strut tilting prevention device for mining support
Through the combination of components such as bottom clamp, connecting frame, extension rod, top clamp, support ring and positioning mechanism, the problem of the pillar tilting under pressure or external force is solved, and the all-round fixation and stability enhancement of the pillar is achieved.
Patent Information
- Application Number
- CN202422513635.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-17
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-10-17
AI Technical Summary
Existing anti-turn preventers cannot effectively enhance the stability of the pillar under pressure or external force, resulting in an increased risk of pillar dumping.
Components such as bottom clamps, connecting frames, extension rods, top clamps, support rings and positioning mechanisms are used to fix the pillars in all directions through multiple means, including legs limiting the movement of the bottom of the pillars, anti-fall chain limiting the inclination, and positioning mechanisms connecting adjacent pillars to form an overall support.
When the pillar is subjected to greater pressure or external force, it can effectively reduce the inclination angle, maintain support force, and reduce the risk of pillar collapse.
Smart Images
Figure CN223062467U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mining support, and more specifically, to a pillar anti - toppling device for mining support. Background Art
[0002] During mining, excavation is generally required. After excavation, in order to prevent the collapse of the excavated area, pillars are usually used. The pillars are cylindrical, with one end supported on the ground and the other end supported on the top wall of the excavated area. However, the pillars sometimes collapse under pressure or external force.
[0003] The existing anti - toppling devices use anti - falling chains to connect the pillars and can only work after the pillars collapse, unable to strengthen the stability of the pillars and reduce the risk of collapse. Summary of the Utility Model
[0004] The utility model aims to provide a pillar anti - toppling device for mining support to overcome the above - mentioned deficiencies, which can fix the pillar in all directions, enable the pillar to maintain the supporting force under greater pressure or external force, and reduce the inclination angle.
[0005] A pillar anti - toppling device for mining support includes: a bottom hoop, which fits against the side wall of the pillar; a connecting frame, which is arranged on the side wall of the bottom hoop, and the two connecting frames are connected by a first bolt; an extension rod, which is screwed onto the top of the connecting frame; a top hoop, which is arranged on the extension rod, and the top hoop is provided with a connecting hole; a support ring, which is arranged on the connecting frame, and the bottom of the support ring is provided with legs; a positioning mechanism, which is arranged between the support rings of adjacent pillars.
[0006] Further, two through - holes are provided on the connecting frame, the first bolt passes through the through - holes, and a locking nut is screwed onto the first bolt, and the support ring is arranged between the two through - holes.
[0007] Further, a second bolt is provided at the bottom of the extension rod, a threaded hole is provided at the top of the extension rod, the second bolt of an adjacent extension rod can be screwed into the threaded hole, and the side wall of the extension rod is provided with threads.
[0008] Further, two positioning nuts are provided on the extension rod, and the two positioning nuts are respectively located above and below the top hoop.
[0009] Further, an anti - falling rope is detachably connected to the connecting hole.
[0010] Further, two monitoring discs are provided on the side wall of the support ring, and the two monitoring discs are perpendicular to each other.
[0011] Further, the monitoring disc includes a pointer and a scale disc. The pointer is rotatably connected to the center of the scale disc, and the bottom of the pointer is vertically downward.
[0012] Further, the leg includes a fixed end, a telescopic end, and a locking button. The top of the fixed end is rotatably connected to the bottom of the support ring. The telescopic end is slidably connected to the fixed end. The locking button passes through the side wall of the fixed end and fits against the outer wall of the telescopic end.
[0013] Further, the positioning mechanism includes an operating rod, a third threaded rod, and a fourth threaded rod. The thread directions of the third threaded rod and the fourth threaded rod are opposite. One end of the third threaded rod and the fourth threaded rod is screwed to the operating rod.
[0014] Further, the other ends of the third threaded rod and the fourth threaded rod are detachably connected to the side wall of the support ring.
[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0016] ① By restricting the movement of the bottom of the pillar through the legs, restricting the inclination of the bottom of the pillar by hanging an anti-falling chain on the connection hole, and also connecting the connected pillars into a whole through the positioning mechanism, the pillar is fixed in all directions, so that the pillar can maintain the supporting force even under greater pressure or external force, and the inclination angle is reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:
[0018] Figure 1 is an overall structural schematic diagram of an anti-toppling device for a pillar used in mining support.
[0019] Figure 2 is a schematic diagram of an extension rod in an anti-toppling device for a pillar used in mining support.
[0020] Figure 3 is Figure 1 an enlarged view of part A in
[0021] In the figures: 1, bottom hoop; 2, connecting frame; 21, first bolt; 22, locking nut; 3, extension rod; 31, second bolt; 32, threaded hole; 33, positioning nut; 4, top hoop; 41, connection hole; 5, support ring; 6, leg; 61, fixed end; 62, telescopic end; 63, locking button; 7, positioning mechanism; 71, operating rod; 72, third threaded rod; 73, fourth threaded rod; 8, monitoring disc; 81, pointer; 82, scale disc. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0022] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0023] As Figure 1 shown, an anti-toppling device for a pillar used in mining support includes: a bottom hoop 1, the bottom hoop 1 being attached to the side wall of the pillar; a connecting frame 2, the connecting frame 2 being arranged on the side wall of the bottom hoop 1, and the two connecting frames 2 being connected by a first bolt 21; an extension rod 3, the extension rod 3 being screwed to the top of the connecting frame 2; a top hoop 4, the top hoop 4 being arranged on the extension rod 3, and a connection hole 41 being provided on the top hoop 4; a support ring 5, the support ring 5 being arranged on the connecting frame 2, and a leg 6 being provided at the bottom of the support ring 5; a positioning mechanism 7, the positioning mechanism 7 being arranged between the support rings 5 of adjacent pillars.
[0024] During use, the bottom hoop 1 and the top hoop 4 are attached to the mining pillar. Since the diameters of the pillars are different, the side walls of the two bottom hoops 1 and the top hoop 4 do not need to be attached. The bottom hoop 1 and the top hoop 4 can clamp the pillar. Two through holes are provided on the connecting frame 2. The first bolt 21 passes through the through holes, and a locking nut 22 is screwed on the first bolt 21. By turning the nut, the two bottom hoops 1 and the top hoop 4 are brought closer, so that the bottom hoop 1 and the top hoop 4 clamp the support rod. The support ring 5 is arranged between the two through holes, and the first bolt 21 is located on both sides of the support ring 5 to make the force on the support ring 5 balanced, and better make the top hoop 4 clamp the pillar.
[0025] To prevent the top of the pillar from being deformed greatly due to excessive force during support, the top hoop 4 is supported on the upper part of the pillar to reduce the deformation of the top of the pillar and enhance the support ability of the pillar. As Figure 2 shown, a second bolt 31 is provided at the bottom of the extension rod 3, and a threaded hole 32 is provided at the top of the extension rod 3. The second bolt 31 of the adjacent extension rod 3 can be screwed into the threaded hole 32. A threaded hole 32 is also provided at the top of the connecting frame 2. The second bolt 31 of the bottommost extension rod 3 is connected to the threaded hole 32 on the connecting frame 2. By connecting multiple extension rods 3 to each other, the extension rod 3 can be flush with the top of the pillar. The side wall of the extension rod 3 is provided with threads, and two positioning nuts 33 are provided on the extension rod 3. The two positioning nuts 33 are respectively located above and below the top hoop 4. The top hoop 4 can slide up and down along the direction of the extension rod 3. When the position of the top hoop 4 is determined, the two positioning threads are turned towards the top hoop 4 to fix the position of the top hoop 4, and then the top is clamped to the upper part of the pillar.
[0026] An anti-falling rope is detachably connected to the connecting hole 41. The anti-falling rope can be connected at the place where there is a hanging point for the anti-falling rope. When protecting a single pillar, it can play a role in preventing the pillar from falling. When disassembling this device, after removing the first bolt 21, the anti-falling rope can pull this device to prevent this device from falling to the ground quickly and causing damage.
[0027] Two monitoring discs 8 are provided on the side wall of the support ring 5. The two monitoring discs 8 are perpendicular to each other. The monitoring disc 8 is used to monitor the inclination angle of the support ring 5. The inclination angle of the support ring 5 corresponds to the inclination angle of the pillar. Two mutually perpendicular monitoring discs 8 can monitor the inclination angles of the pillar in two directions.
[0028] As Figure 3 shown, the monitoring disc 8 includes a pointer 81 and a scale disc 82. The pointer 81 is rotatably connected to the center of the scale disc 82. The bottom of the pointer 81 is vertically downward under the action of gravity. When the pillar drives the scale disc 82 to tilt, the scale indicated by the pointer 81 is the current inclination angle. When the inclination angle is too large, the operator needs to straighten the pillar in time to reduce the possibility of the ore layer collapsing.
[0029] The leg 6 is used to assist in supporting and positioning this device to further prevent the pillar from tilting. The leg 6 includes a fixed end 61, a telescopic end 62 and a locking button 63. The top of the fixed end 61 is rotatably connected to the bottom of the support ring 5. The fixed end 61 can drive the telescopic end 62 to rotate outward. The telescopic end 62 is slidably connected to the fixed end 61. By sliding the telescopic end 62, the telescopic end 62 can be brought into contact with the ground. The rough surface of the mine roadway can support and fix the bottom of the telescopic end 62. The locking button 63 passes through the side wall of the fixed end 61 and fits against the outer wall of the telescopic end 62. The locking button 63 is used to fix the telescopic length of the telescopic end 62. After tightening the locking button 63, the front end of the locking button 63 presses against the side wall of the telescopic end 62, thereby restricting the movement of the telescopic end 62.
[0030] The positioning mechanism 7 connects adjacent support rings 5 to connect adjacent pillars into a whole to enhance the overall supporting ability. The positioning mechanism 7 includes an operating rod 71, a third threaded rod 72 and a fourth threaded rod 73. The thread directions of the third threaded rod 72 and the fourth threaded rod 73 are opposite. One end of the third threaded rod 72 and the fourth threaded rod 73 is screwed to the operating rod 71. The other ends of the third threaded rod 72 and the fourth threaded rod 73 are detachably connected to the side wall of the support ring 5. When in use, turn the third threaded rod 72 and the fourth threaded rod 73 so that the ends of the third threaded rod 72 and the fourth threaded rod 73 fit against the support ring 5. Then use screws to connect the third threaded rod 72, the fourth threaded rod 73 to the corresponding support ring 5. After connection, if the inclination directions of the two groups of support rings 5 are inconsistent, the operating rod 71 can be rotated, and the operating rod drives the third threaded rod 72 and the fourth threaded rod 73 to expand and contract, thereby adjusting the inclination angle.
[0031] The device restricts the movement of the bottom of the support column through the outriggers 6, restricts the inclination of the bottom of the support column by hanging a fall arrest chain on the connection hole 41, and also connects the connected support columns into an integral whole through the positioning mechanism 7 by multiple means, fixing the support column in all directions, so that the support column can maintain the supporting force even under greater pressure or external force, and reduce the inclination angle.
[0032] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.
Claims
1. A pillar anti-toppling device for mining support, characterized in that, Comprising: Bottom hoop (1), the bottom hoop (1) being in contact with the side wall of the support column; Connecting frame (2), the connecting frame (2) being provided on the side wall of the bottom hoop (1), and the two connecting frames (2) being connected by a first bolt (21); Extension rod (3), the extension rod (3) being screwed onto the top of the connecting frame (2); Top hoop (4), the top hoop (4) being provided on the extension rod (3), and the top hoop (4) being provided with a connection hole (41); Support ring (5), the support ring (5) being provided on the connecting frame (2), and the bottom of the support ring (5) being provided with legs (6); Positioning mechanism (7), the positioning mechanism (7) being provided between the support rings (5) of adjacent support columns.
2. The anti - toppling device for a prop used in mining support according to claim 1, characterized in that: Two through holes are provided on the connecting frame (2), the first bolt (21) passes through the through holes, a locking nut (22) is screwed onto the first bolt (21), and the support ring (5) is provided between the two through holes.
3. The anti-toppling device for a prop used in mining support according to claim 2, characterized in that: A second bolt (31) is provided at the bottom of the extension rod (3), a threaded hole (32) is provided at the top of the extension rod (3), the second bolt (31) of an adjacent extension rod (3) can be screwed into the threaded hole (32), and the side wall of the extension rod (3) is provided with threads.
4. The anti - toppling device for a prop used in mining support according to claim 3, characterized in that: Two positioning nuts (33) are provided on the extension rod (3), and the two positioning nuts (33) are respectively located above and below the top hoop (4).
5. The anti - toppling device for a prop used in mining support according to claim 4, wherein: An anti-falling rope is detachably connected to the connection hole (41).
6. The anti - toppling device for a prop used in mining support according to claim 5, wherein: Two monitoring discs (8) are provided on the side wall of the support ring (5), and the two monitoring discs (8) are perpendicular to each other.
7. The anti - falling device for a prop used in mining support according to claim 6, characterized in that: The monitoring disc (8) includes a pointer (81) and a scale disc (82), the pointer (81) being rotatably connected to the center of the scale disc (82), and the bottom of the pointer (81) being vertically downward.
8. The anti - toppling device for a prop used in mining support according to claim 7, wherein: The leg (6) includes a fixed end (61), a telescopic end (62) and a locking button (63), the top of the fixed end (61) being rotatably connected to the bottom of the support ring (5), the telescopic end (62) being slidably connected to the fixed end (61), and the locking button (63) passing through the side wall of the fixed end (61) and being in contact with the outer wall of the telescopic end (62).
9. The anti - toppling device for a prop used in mining support according to claim 8, characterized in that: The positioning mechanism (7) includes an operating rod (71), a third threaded rod (72) and a fourth threaded rod (73), the thread directions of the third threaded rod (72) and the fourth threaded rod (73) being opposite, and one ends of the third threaded rod (72) and the fourth threaded rod (73) being screwed onto the operating rod (71).
10. The anti - falling device for the prop used in mining support according to claim 9, characterized in that: The other ends of the third threaded rod (72) and the fourth threaded rod (73) are detachably connected to the side wall of the support ring (5).