Anti-collapse mechanism for anchor rod and anchor cable soft layer

Abstract

The invention discloses an anchor rod and anchor cable soft layer anti-collapse mechanism, and relates to the technical field of mineral exploration equipment, the anchor rod and anchor cable soft layer anti-collapse mechanism comprises: a plurality of sleeves, which are sequentially connected end to end; the supporting claw is arranged in the sleeve and is used for disassembling the sleeve; wherein the supporting claw comprises a supporting frame, a supporting piece, a sliding piece and a braking piece, the supporting piece is movably connected to the supporting frame, the sliding piece is movably connected to the supporting frame, the output end of the sliding piece is movably connected with the input end of the supporting piece through a connecting rod, and the braking piece is installed on the supporting frame; the sliding part is driven by the brake part to move, the connecting rod pushes the supporting part to be unfolded outwards and tightly attached to the inner wall of the sleeve to form radial supporting force, the supporting claw is rotated to drive the sleeve to rotate, one or more sections of sleeves are detached, the sleeves are pulled out through the supporting claw, friction force is reduced, and the sleeve is pulled out through the brake part. And the whole is difficult to pull out due to large friction force.

Description

Technical Field

[0001] This invention relates to the field of mineral exploration equipment technology, and in particular to a mechanism for preventing collapse in weak layers of anchor bolts and cables. Background Technology

[0002] Mineral exploration is the geological work carried out on mineral deposits that have been identified as having industrial value through general surveys and detailed investigations. It involves using effective exploration techniques and methods to provide reliable ore reserves and necessary geological, technical, and economic data for mine design. It is also known as mineral deposit exploration.

[0003] Existing mineral exploration requires geological testing at different depths. Current mineral exploration sampling equipment involves drilling holes and then sampling them. During the drilling process, anchor bolts pass through soil layers, hard rock layers, and weak layers. When the anchor bolts are pulled out, the weak layers may collapse, resulting in multiple drilling operations.

[0004] Currently, the existing technology involves continuously adding a sleeve to the outside of the anchor rod from the start of drilling to the end to prevent the collapse of the weak layer. Cement grout is injected between the hole and the sleeve, and the sleeve needs to be pulled out after grouting. However, the current method of removing the sleeve involves pulling it out completely together. But after grouting, the cement grout has strong adsorption properties, making it difficult to pull out the sleeve, resulting in a significant increase in sampling costs. Summary of the Invention

[0005] To address the above shortcomings, this invention provides a mechanism for preventing collapse of the weak layer of anchor bolts and cables, which can disassemble the sleeve into multiple sections, thus solving the problem of the sleeve being difficult to pull out.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A mechanism for preventing collapse of weak layers in anchor bolt and anchor cable layers includes: A sleeve, wherein there are several sleeves connected end to end in sequence; A support, located inside the sleeve, is used to disassemble the sleeve; The support includes a support frame, a support member, a sliding member, and a braking member. The support member is movably connected to the support frame, the sliding member is movably connected to the support frame, the output end of the sliding member is movably connected to the input end of the support member via a connecting rod, and the braking member is mounted on the support frame, with its output end connected to the input end of the sliding member.

[0007] The above scheme employs a structure with multiple sleeves connected end to end, allowing for flexible adjustment of the length according to the actual drilling depth. This makes it suitable for support needs at different depths, especially for areas prone to collapse such as weak interlayers and fractured zones. The built-in support frame, support components, sliding components, and braking components of the gripper work together. When the sliding component moves under the drive of the braking component, it pushes the support component outward through the connecting rod, pressing it tightly against the inner wall of the sleeve to form radial support force. By rotating the gripper, the sleeve is rotated, allowing one or more sleeve sections to be disassembled. The gripper then pulls out the sleeve, reducing friction and preventing the entire sleeve from being difficult to pull out due to high friction.

[0008] Furthermore, one end of the sleeve is provided with a threaded groove, and the other end is provided with a threaded boss. The threaded groove at one end of one sleeve is threadedly connected to the threaded boss at the other end of the other sleeve.

[0009] Through the above-mentioned further solutions, the threaded groove and the threaded boss form a tight mechanical engagement, and the threaded connection method is simple to operate, facilitating quick assembly and disassembly.

[0010] Furthermore, the sleeve is provided with an annular platform, and the annular platform is provided with a plurality of evenly arranged stop blocks, the stop blocks being located below the annular platform.

[0011] With the above further solution, the stop block is set below the ring platform, which can effectively limit the rotation stroke of the support, thereby driving the sleeve to rotate. The ring platform can effectively limit the upward stroke of the support, thereby driving the sleeve to rise.

[0012] Furthermore, the support frame includes an upper platform, a lower platform, and a support rod. The upper platform is connected to one end of the support rod, and the lower platform is connected to the other end of the support rod. The support rod is provided with a retaining ring, and the lower platform is provided with a guide rod in the middle.

[0013] Furthermore, the sliding component includes a sliding cylinder, multiple connecting rods, and a connecting platform. The sliding cylinder is slidably connected to the guide rod. Multiple connecting platforms are provided at the upper end of the sliding cylinder. One end of each of the multiple connecting rods is connected to the connecting platform, and the other end is connected to the multiple connecting platforms. A through groove is provided in the middle of the upper platform, and the connecting platform is located in the through groove.

[0014] Through the above further solutions, the guide rod set in the middle of the lower platform provides axial guidance for the slide cylinder, ensuring that the sliding component moves smoothly along a straight line under the drive of the brake component, avoiding deflection and jamming; a through groove is opened in the middle of the upper platform, allowing the connecting platform to move up and down in it.

[0015] Furthermore, the support includes multiple support rods, and multiple first connecting ears are provided on the lower side of the upper platform. One end of the support rod is rotatably connected to the first connecting ear, and a second connecting ear is provided in the middle of the support rod. Multiple evenly arranged third connecting ears are provided on the slide cylinder. One end of the connecting rod is rotatably connected to the second connecting ear, and the other end is rotatably connected to the third connecting ear.

[0016] With the above-mentioned further scheme, multiple struts rotate around their respective first connecting ears, and the middle part is hinged to the connecting rod through the second connecting ear. The other end of the connecting rod is hinged to the third connecting ear on the slide. When the slide moves up and down along the guide rod, the connecting rod pushes or pulls the middle part of each strut, so that all struts are simultaneously stretched outward or retracted inward, ensuring that a uniform circumferential supporting force is applied to the inner wall of the sleeve.

[0017] Furthermore, the lower platform is provided with a plurality of evenly arranged grooves, and the end of the support rod and the first connecting ear are located in the grooves, at which time the lower end of the slide cylinder abuts against the upper side of the lower platform.

[0018] With the above further solution, the groove provides a space for the lower end of the support rod. When the support rod is in the groove, the support rod is in a retracted state, which significantly reduces the overall radial profile. At this time, the lower end of the slide cylinder is in close contact with the upper side of the lower platform.

[0019] Furthermore, baffles are provided on the upper side of the lower platform at both sides of the groove, and reinforcing plates are provided on the baffles. A protective frame is provided on the lower side of the lower platform at the groove.

[0020] With the above-mentioned further solutions, baffles are set on both sides of the groove to form lateral limiting and support for the struts located in the groove. The reinforcing plate is fixed to the outside of the baffle, which significantly improves the bending and shear resistance of the baffle and prevents the struts from undergoing plastic deformation or breakage when under stress. The protective frame is located in the corresponding area of ​​the groove on the lower side of the platform, forming a ring wrap around the groove area from the bottom, further improving the overall rigidity of this key part.

[0021] Furthermore, the support rod is provided with a hook at the end opposite to the first connecting ear, and the hook is adapted to the ring platform.

[0022] With the above further solution, when the strut extends outward to the working position under the drive of the slide cylinder, the hook at its end can hook onto the lower edge of the ring platform to form a mechanical interlock, thereby having enough force to hook up the sleeve. The hook can also cooperate with the stop block, the stop block blocks the hook, and the hook drives the slide cylinder to rotate.

[0023] Furthermore, the upper platform is provided with a protective barrel, the brake is installed inside the protective barrel, the connecting platform is provided with a connecting block, the connecting block is provided with a threaded hole, the output shaft of the brake is provided with a thread, and the output shaft of the brake is threadedly connected to the threaded hole.

[0024] Through the above-mentioned further solution, the brake component forms a screw-nut pair with the threaded hole on the connecting block through its threaded output shaft. Rotating the output shaft can drive the connecting block to move precisely along the axial direction, and then drive the support rod to unfold or retract through the connecting rod. The threaded transmission itself has a self-locking characteristic, so even if the power is cut off or the load is unloaded, the current position of the support rod can be maintained.

[0025] Compared with the prior art, the beneficial effects of the present invention are: 1. The structure of multiple sleeves connected end to end can be flexibly adjusted according to the actual drilling depth, which is suitable for support needs at different depths, especially for areas prone to collapse such as weak interlayers and fractured zones.

[0026] 2. The built-in support frame, support component, sliding component and braking component of the gripper work together. When the sliding component moves under the drive of the braking component, it pushes the support component to unfold outward through the connecting rod, and closely adheres to the inner wall of the sleeve to form a radial support force. By rotating the gripper, the sleeve is driven to rotate, so that one or more sections of the sleeve can be disassembled. Then the gripper can be used to pull out the sleeve, reducing friction and avoiding the whole thing being difficult to pull out due to high friction. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0028] Figure 1 This is a schematic diagram of the sleeve structure of the present invention; Figure 2 This is a schematic diagram of the anchor bolt structure of the present invention; Figure 3 This is a schematic diagram of the overall structure of the present invention; Figure 4 This is a schematic diagram of the overall support structure of the present invention; Figure 5 This is a schematic diagram of the support and gripping part of the present invention; Figure 6 This is a schematic diagram of the groove structure of the present invention; Figure 7 This is a schematic diagram of the cross-sectional structure of the support and gripper of the present invention; Figure 8 This is a schematic diagram of the overall cross-sectional structure of the present invention.

[0029] In the diagram: 1. Sleeve; 11. Threaded groove; 12. Threaded boss; 13. Ring platform; 14. Stop block; 2. Support grab; 3. Support frame; 31. Upper platform; 311. Through groove; 312. First connecting ear; 313. Protective barrel; 314. Connector; 32. Lower platform; 321. Guide rod; 322. Groove; 323. Baffle; 324. Reinforcing plate; 325. Protective frame; 33. Support rod; 331. Retaining ring; 4. Support piece; 41. Support rod; 411. Second connecting ear; 412. Hook head; 5. Sliding piece; 51. Slide cylinder; 511. Connecting platform; 512. Third connecting ear; 52. Connecting rod; 53. Connecting platform; 531. Connecting block; 6. Braking piece; 7. Connecting rod; 8. Anchor bolt. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0031] In the description of this invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0032] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0033] Example: Reference Figures 1-8As shown, a mechanism for preventing collapse in weak layers of anchor bolts and cables includes a sleeve 1 and a support 2. Several sleeves 1 are provided, and the sleeves 1 are connected end to end in sequence. The structure of multiple sleeves 1 connected end to end can flexibly adjust the length according to the actual drilling depth, which is suitable for support needs at different depths, especially suitable for areas prone to collapse such as weak interlayers and fractured zones. The support 2 is located inside the sleeve 1 and is used to disassemble the sleeve 1. The support 2 includes a support frame 3, a support member 4, a sliding member 5, and a brake member 6. The support member 4 is movably connected to the support frame 3, and the sliding member 5 is movably connected to the support frame 3. The output end of the sliding member 5 is movably connected to the input end of the support member 4 through a connecting rod 7. The brake member 6 is installed on the support frame 3, and the output end of the brake member 6 is connected to the input end of the sliding member 5. The support frame 3, support member 4, sliding member 5, and brake member 6 work together. When the sliding member 5 moves under the drive of the brake member 6, it pushes the support member 4 outward through the connecting rod 7, closely adhering to the inner wall of the sleeve 1 to form a radial support force. By rotating the support 2, the sleeve 1 is rotated, causing one or more sections of the sleeve 1 to be disassembled. Then, the sleeve 1 is pulled out through the support 2, reducing friction and preventing the whole from being difficult to pull out due to high friction.

[0034] The sleeve 1 has a threaded groove 11 at one end and a threaded boss 12 at the other end. The threaded groove 11 at one end of one sleeve 1 is threadedly connected to the threaded boss 12 at the other end of another sleeve 1. The engagement of the threaded groove 11 and the threaded boss 12 forms a tight mechanical engagement. The threaded connection method is simple to operate and facilitates quick assembly and disassembly.

[0035] The support frame 3 includes an upper platform 31, a lower platform 32, and a support rod 33. The upper platform 31 is connected to one end of the support rod 33, and the lower platform 32 is connected to the other end of the support rod 33. The support rod 33 is provided with a retaining ring 331, which can prevent the internal components of the support 2 from colliding with the sleeve 1. The lower platform 32 is provided with a guide rod 321 in the middle. The sliding component 5 includes a sliding cylinder 51, multiple connecting rods 52, and a connecting platform 53. The sliding cylinder 51 is slidably connected to the guide rod 321, and the upper end of the sliding cylinder 51 is provided with multiple The connecting platform 511 has multiple connecting rods 52 connected at one end to the connecting platform 53 and at the other end to the multiple connecting platforms 511. The upper platform 31 has a through groove 311 in the middle, and the connecting platform 53 is located in the through groove 311. The guide rod 321 set in the middle of the lower platform 32 provides axial guidance for the slide cylinder 51, ensuring that the sliding member 5 moves smoothly in a straight line under the drive of the brake member 6, avoiding deflection and jamming. The through groove 311 is opened in the middle of the upper platform 31, so that the connecting platform 53 can move up and down in it.

[0036] The support member 4 includes multiple support rods 33. Multiple first connecting ears 312 are provided on the lower side of the upper platform 31. One end of the support rod 33 is rotatably connected to the first connecting ear 312. A second connecting ear 411 is provided in the middle of the support rod 33. Multiple evenly arranged third connecting ears 512 are provided on the slide cylinder 51. One end of the connecting rod 7 is rotatably connected to the second connecting ear 411, and the other end is rotatably connected to the third connecting ear 512. Multiple support rods 33 rotate around their respective first connecting ears 312. The middle part is hinged to the connecting rod 7 through the second connecting ear 411. The other end of the connecting rod 7 is hinged to the third connecting ear 512 on the slide cylinder 51. When the slide cylinder 51 moves up and down along the guide rod 321, the connecting rod 7 pushes or pulls the middle part of each support rod 33, so that all support rods 33 are simultaneously opened outward or retracted inward, ensuring that a uniform circumferential supporting force is applied to the inner wall of the sleeve 1.

[0037] The lower platform 32 is provided with a plurality of evenly arranged grooves 322. The end of the support rod 33 and the first connecting ear 312 are connected to each other in the grooves 322. At this time, the lower end of the slide cylinder 51 abuts against the upper side of the lower platform 32. The grooves 322 provide a space for the lower end of the support rod 33. When the support rod 33 is located in the grooves 322, the support rod 33 is in a retracted state, which significantly reduces the overall radial profile. At this time, the lower end of the slide cylinder 51 is in close contact with the upper side of the lower platform 32.

[0038] A baffle 323 is provided on both sides of the groove 322 on the upper side of the lower platform 32, and a reinforcing plate 324 is provided on the baffle 323. A protective frame 325 is provided on the lower side of the lower platform 32 at the groove 322. The baffle 323 is set on both sides of the groove 322 to form a lateral limit and support for the support rod 33 located in the groove 322. The reinforcing plate 324 is fixed to the outside of the baffle 323, which significantly improves the bending and shear resistance of the baffle 323 and prevents the support rod 33 from plastic deformation or breakage when under stress. The protective frame 325 is located in the corresponding area of ​​the groove 322 on the lower side of the lower platform 32, forming a ring wrap around the groove 322 area from the bottom, further improving the overall rigidity of this key part.

[0039] The sleeve 1 is provided with an annular platform 13, and multiple evenly arranged stop blocks 14 are provided on the annular platform 13. The stop blocks 14 are located below the annular platform 13. The stop blocks 14 are located below the annular platform 13 and can effectively limit the rotation stroke of the support member 4, thereby driving the sleeve 1 to rotate. The annular platform 13 can effectively limit the upward stroke of the support member 4, thereby driving the sleeve 1 to rise.

[0040] The upper end of the ring platform 13 is set as an inclined surface to facilitate the passage of the support claws and the anchor bolts and anchor cables.

[0041] The support rod 33 and the first connecting ear 312 are connected at opposite ends and are provided with hooks 412. The hooks 412 are adapted to the ring platform 13. When the support rod 33 is extended outward to the working position under the drive of the slide cylinder 51, the hooks 412 at its end can hook onto the lower edge of the ring platform 13 to form a mechanical interlock, so that there is enough force to hook up the sleeve 1. The hooks 412 can also cooperate with the stop block 14. The stop block 14 blocks the hooks 412, and the hooks 412 drive the slide cylinder 51 to rotate.

[0042] The upper platform 31 is equipped with a protective barrel 313, and the brake 6 is installed inside the protective barrel 313. The connecting platform 53 is equipped with a connecting block 531, which has a threaded hole. The output shaft of the brake 6 is threaded and connected to the threaded hole. The brake 6 forms a screw-nut pair with the threaded hole on the connecting block 531 through its threaded output shaft. Rotating the output shaft can drive the connecting platform 53 to move precisely along the axial direction, which in turn drives the support rod 33 to unfold or retract through the connecting rod 7. The threaded transmission itself has a self-locking characteristic, so even if the power is cut off or the load is unloaded, the current position of the support rod 33 can be maintained.

[0043] As further explained in this embodiment, a battery can also be installed inside the protective barrel 313, which can directly power the motor without the need for external connection lines and can control the motor wirelessly.

[0044] Among them, brake component 6 is a motor.

[0045] The upper platform 31 is also equipped with a connector 314, which is used to connect to one end of the anchor rod 8. The connector 314 can send the support claw into the sleeve 1 through the anchor rod 8 and can drive the support claw to rotate.

[0046] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A mechanism for preventing collapse of weak layers in anchor bolts and cables, characterized in that, include: A sleeve (1) is provided, and the sleeves (1) are connected end to end in sequence; A support (2) is provided inside the sleeve (1) for disassembling the sleeve (1); The support (2) includes a support frame (3), a support member (4), a sliding member (5), and a braking member (6). The support member (4) is movably connected to the support frame (3), and the sliding member (5) is movably connected to the support frame (3). The output end of the sliding member (5) is movably connected to the input end of the support member (4) through a connecting rod (7). The braking member (6) is installed on the support frame (3), and the output end of the braking member (6) is connected to the input end of the sliding member (5).

2. The anchor bolt and cable weak layer anti-collapse mechanism according to claim 1, characterized in that: The sleeve (1) has a threaded groove (11) at one end and a threaded boss (12) at the other end. The threaded groove (11) at one end of one sleeve (1) is threadedly connected to the threaded boss (12) at the other end of the other sleeve (1).

3. The anchor bolt and cable weak layer anti-collapse mechanism according to claim 1, characterized in that: The sleeve (1) is provided with an annular platform (13), and the annular platform (13) is provided with a plurality of evenly arranged stop blocks (14), and the stop blocks (14) are located below the annular platform (13).

4. The anchor bolt and cable weak layer anti-collapse mechanism according to claim 3, characterized in that: The support frame (3) includes an upper platform (31), a lower platform (32) and a support rod (33). The upper platform (31) is connected to one end of the support rod (33), and the lower platform (32) is connected to the other end of the support rod (33). A retaining ring (331) is provided on the support rod (33), and a guide rod (321) is provided in the middle of the lower platform (32).

5. The anchor bolt and cable weak layer anti-collapse mechanism according to claim 4, characterized in that: The sliding member (5) includes a sliding cylinder (51), multiple connecting rods (52) and a connecting platform (53). The sliding cylinder (51) is slidably connected to the guide rod (321). Multiple connecting platforms (511) are provided at the upper end of the sliding cylinder (51). One end of each of the multiple connecting rods (52) is connected to the connecting platform (53), and the other end is connected to the multiple connecting platforms (511). A through groove (311) is provided in the middle of the upper platform (31), and the connecting platform (53) is located in the through groove (311).

6. The anchor bolt and cable weak layer anti-collapse mechanism according to claim 5, characterized in that: The support member (4) includes multiple support rods (33), and multiple first connecting ears (312) are provided on the lower side of the upper platform (31). One end of the support rod (33) is rotatably connected to the first connecting ear (312). A second connecting ear (411) is provided in the middle of the support rod (33). Multiple evenly arranged third connecting ears (512) are provided on the slide cylinder (51). One end of the connecting rod (7) is rotatably connected to the second connecting ear (411), and the other end is rotatably connected to the third connecting ear (512).

7. The anchor bolt and cable weak layer anti-collapse mechanism according to claim 6, characterized in that: The lower platform (32) is provided with a plurality of evenly arranged grooves (322). The end of the support rod (33) and the first connecting ear (312) are located in the grooves (322). At this time, the lower end of the slide cylinder (51) abuts against the upper side of the lower platform (32).

8. The anchor bolt and cable weak layer anti-collapse mechanism according to claim 7, characterized in that: The lower platform (32) has baffles (323) on its upper side located on both sides of the groove (322), and reinforcing plates (324) on the baffles (323). The lower platform (32) has a protective frame (325) on its lower side located at the groove (322).

9. The anchor bolt and cable weak layer anti-collapse mechanism according to claim 7, characterized in that: The support rod (33) is provided with a hook (412) at the end opposite to the first connecting ear (312), and the hook (412) is adapted to the ring platform (13).

10. The anchor bolt and cable weak layer anti-collapse mechanism according to claim 5, characterized in that: The upper platform (31) is provided with a protective barrel (313), the brake (6) is installed in the protective barrel (313), the connecting platform (53) is provided with a connecting block (531), the connecting block (531) is provided with a threaded hole, the output shaft of the brake (6) is provided with a thread, and the output shaft of the brake (6) is threadedly connected to the threaded hole.

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