Mine fault supporting anchor rod
By designing structures such as spiral anchors and extension rods, the problems of traditional mine fault support anchors being squeezed for a long time after being inserted into mud holes and the anchors are not long enough, which achieves stable engagement of anchors and effective fixation of extension rods, improving the stability and safety of mine fault areas.
Patent Information
- Application Number
- CN202422093980.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-28
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-08-28
AI Technical Summary
Traditional mine fault support anchors are squeezed for a long time after being inserted into the holes with mud, which consumes manpower and time and increases costs. The insufficient anchor rods lead to insufficient anchoring force and limited reinforcement range, which affects stability and increases operating costs.
A mine fault support anchor rod including spiral anchor rods, extension rods and specific structures was designed. The threaded structure of the spiral anchor rod and the ring plate can achieve a stable engagement of the anchor rod; when the length of the anchor rod is insufficient, the length of the anchor rod is expanded by using the extension rod and the top bead structure, and mud is injected into the slurry through the slurry hole to fix the extension rod.
It effectively solves the problem of long-term extrusion after the anchor rod is inserted into the mud hole, saves manpower and cost, and improves the anchoring force and reinforcement range by extending the use of the rod, and improves the stability and safety of the mine fault area.
Smart Images
Figure CN223035067U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mine fault support bolts, in particular to a mine fault support bolt. Background Art
[0002] The mine fault support bolt technology aims to enhance the stability of the mine fault area, prevent geological disasters and improve the safety of mining. With the increase of the mining depth and scale of the mine, the complexity of the fault zone is also rising, and the traditional support methods are difficult to cope with the deformation and damage of the fault zone. The bolt technology effectively distributes the stress of the rock by installing bolts in the fault zone and stabilizing the rock strata on a solid support structure, enhances the support capacity of the mine fault area, and ensures the long-term safe mining of the mine;
[0003] The mine fault support bolt technology mainly relies on bolts, anchoring agents and support systems. Bolts are generally made of high-strength steel and are installed in the rock strata of the fault area through drilling. The anchoring agent (such as cement slurry) is injected into the hole and tightly binds the bolt to the rock strata after curing. The support system usually includes bolts, anchor nets and support plates to further enhance the stability of the fault. The working principle is to transfer the stress of the rock to a more stable area through the bolt and fix the bolt through the cured anchoring agent to provide the necessary support and stability to prevent further damage to the fault area;
[0004] After the mine fault support bolt is inserted into the hole filled with mud and the bolt is extruded for a long time, it will consume manpower and time, increase costs, disturb the rock mass structure and affect stability, make the combination of the bolt and the mud unstable, thus reducing the overall stability of the support structure and bringing potential safety hazards; and in the mine fault support, if the bolt is not long enough, it will lead to insufficient anchoring force and limited reinforcement range, trigger safety accidents, affect the coordination and reliability of the support system, and increase the operation cost for later remedy. Therefore, a mine fault support bolt is proposed to solve the above problems. Summary of the Utility Model
[0005] In order to make up for the above deficiencies, the utility model provides a mine fault support bolt, aiming to improve the problems in the existing mine fault support technology, such as the many disadvantages of long-term extrusion of the bolt inserted into the mud hole, and the serious problem that the bolt is not long enough, which affects stability and increases costs.
[0006] To achieve the above object, the utility model adopts the following technical solutions: A mine fault support bolt, including a spiral bolt, a first internal thread is arranged on the left side of the middle part of the spiral bolt, a second ring plate is arranged on the left side of the middle part of the spiral bolt, a first external thread is arranged inside the second ring plate, the first external thread is threadedly connected with the first internal thread, a third ring plate is fixedly connected to the right side of the outside of the second ring plate, a square plate is arranged outside the third ring plate, a ring groove is opened in the middle of the inside of the square plate, and the third ring plate slides inside the ring groove;
[0007] As a further description of the above technical solution: A second internal thread is arranged in the middle of the inside of the spiral bolt, an extension rod is arranged inside the spiral bolt, a second external thread is arranged in the middle of the outside of the extension rod, the second external thread is threadedly connected with the second internal thread, a conical plate is fixedly connected to the right end of the spiral bolt, and a plurality of long holes are equidistantly opened on the right side of the conical plate;
[0008] As a further description of the above technical solution: Square blocks are fixedly connected equidistantly on the front and rear sides of the outside of the second ring plate, a first ring plate is arranged outside the second ring plate, two square grooves are equidistantly opened inside the first ring plate, and handles are fixedly connected to the upper and lower sides of the left part of the first ring plate;
[0009] As a further description of the above technical solution: The square blocks are all engaged with the square grooves;
[0010] As a further description of the above technical solution: A plurality of grouting holes are equidistantly opened on the upper and lower sides of the outside of the spiral bolt;
[0011] As a further description of the above technical solution: A top bead is fixedly connected to the right end of the extension rod;
[0012] As a further description of the above technical solution: A grout stop plug is arranged on the left side of the middle part of the spiral bolt;
[0013] As a further description of the above technical solution: Conical nails are fixedly connected equidistantly at the four corners of the right part of the square plate.
[0014] The utility model has the following beneficial effects:
[0015] 1. In the utility model, through the cooperation of structures such as the spiral bolt, the spiral bolt is inserted into a predetermined hole, the handle is rotated to drive the first ring plate to rotate, and then the second ring plate moves on the first internal thread of the spiral bolt, so that the square plate with conical nails cooperates with the thread on the spiral bolt to clamp it on the mine wall. After clamping, the first ring plate can be removed for the next bolt. After stabilization, the second ring plate is removed to save resources, solving the problem of consuming manpower, time and increasing costs due to long-term extrusion of the bolt after inserting it into a hole with mud.
[0016] 2. In the present utility model, through the cooperation of structures such as an extension rod, when the length of the spiral anchor bolt is insufficient, the extension rod with a second external thread is inserted into the spiral anchor bolt provided with a second internal thread, and the extension rod with a top bead is rotated to make the top bead push open the conical plate provided with a long hole, and then the slurry flows through the slurry inlet hole into the inside of the spiral anchor bolt, so that the extension rod is fixed inside the spiral anchor bolt, thereby solving the problems of insufficient anchoring force and limited reinforcement range caused by the insufficient length of the anchor bolt. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is an overall structure diagram of a mine fault support anchor bolt proposed by the present utility model;
[0018] Figure 2 It is an unfolded view of a mine fault support anchor bolt proposed by the present utility model;
[0019] Figure 3 It is a top cross-sectional view of a mine fault support anchor bolt proposed by the present utility model.
[0020] Legend:
[0021] 1. Spiral anchor bolt; 2. Slurry inlet hole; 3. Conical plate; 4. First external thread; 5. Grout plug; 6. Square plate; 7. Tapered nail; 8. Handle; 9. First ring plate; 10. Extension rod; 11. Top bead; 12. Square groove; 13. Second ring plate; 14. Square block; 15. Third ring plate; 16. Ring groove; 17. Second external thread; 18. Long hole; 19. First internal thread; 20. Second internal thread. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0023] Refer to Figure 1 - Figure 2, An embodiment provided by the present utility model: A mine fault support bolt, including a spiral bolt 1, a first internal thread 19 is arranged on the left side of the middle part of the spiral bolt 1, a second ring plate 13 is arranged on the left side of the middle part of the spiral bolt 1, a first external thread 4 is arranged inside the second ring plate 13, the first external thread 4 is threadedly connected with the first internal thread 19, a third ring plate 15 is fixedly connected to the right side of the outside of the second ring plate 13, a square plate 6 is arranged outside the third ring plate 15, a ring groove 16 is opened in the middle of the inside of the square plate 6, the third ring plate 15 slides inside the ring groove 16, square blocks 14 are fixedly connected to the front and back sides of the outside of the second ring plate 13 at equal intervals, a first ring plate 9 is arranged outside the second ring plate 13, two square grooves 12 are opened at equal intervals inside the first ring plate 9, handles 8 are fixedly connected to the upper and lower sides of the left part of the first ring plate 9, the square blocks 14 are all engaged with the square grooves 12, a grout stopper 5 is arranged on the left side of the middle part of the spiral bolt 1, and conical nails 7 are fixedly connected to the four corners of the right part of the square plate 6 at equal intervals.
[0024] First, insert the spiral bolt 1 into the predetermined hole. Handles 8 are fixed to the upper and lower sides of the left part of the first ring plate 9. Rotate the handles 8 to drive the first ring plate 9 to rotate. And a first internal thread 19 is arranged on the left side of the middle part of the spiral bolt 1, a second ring plate 13 is arranged on the left side of the middle part of the spiral bolt 1, and a first external thread 4 is arranged inside the second ring plate 13. Thus, the second ring plate 13 moves on the first internal thread 19 of the spiral bolt 1, so that the square plate 6 with conical nails 7 cooperates with the thread on the spiral bolt 1 to clamp it on the mine wall. After clamping, the first ring plate 9 can be removed for the next bolt. After stabilization, the second ring plate 13 can be removed to save resources. A grout stopper 5 is also arranged on the left side of the middle part of the spiral bolt 1 to prevent the slurry from flowing out, solving the problem of consuming manpower, time and increasing costs due to long-term extrusion of the bolt after inserting it into a hole with slurry.
[0025] Refer to Figure 3 , a second internal thread 20 is arranged in the middle of the inside of the spiral bolt 1, an extension rod 10 is arranged inside the spiral bolt 1, a second external thread 17 is arranged in the middle of the outside of the extension rod 10, the second external thread 17 is threadedly connected with the second internal thread 20, a conical plate 3 is fixedly connected to the right end of the spiral bolt 1, a number of long holes 18 are opened at equal intervals on the right side of the conical plate 3, a number of grout inlet holes 2 are opened at equal intervals on the upper and lower sides of the outside of the spiral bolt 1, and a top bead 11 is fixedly connected to the right end of the extension rod 10.
[0026] Through the cooperation of structures such as the extension rod 10, when the length of the spiral anchor rod 1 is insufficient, a second internal thread 20 is provided on the inner middle side of the spiral anchor rod 1. An extension rod 10 is arranged inside the spiral anchor rod 1, and a second external thread 17 is arranged on the outer middle side of the extension rod 10. The extension rod 10 with the second external thread 17 is inserted into the spiral anchor rod 1 provided with the second internal thread 20. The extension rod 10 with the top bead 11 is rotated to make the top bead 11 push open the conical plate 3 provided with the long hole 18, and then the mud is allowed to flow into the inside of the spiral anchor rod 1 through the slurry inlet hole 2, so that the extension rod 10 is fixed inside the spiral anchor rod 1, thereby solving the problems of insufficient anchoring force and limited reinforcement range caused by the insufficient length of the anchor rod.
[0027] Working principle: First, insert the spiral anchor rod 1 into the predetermined hole, rotate the handle 8 to drive the first ring plate 9 to rotate, and then make the second ring plate 13 move on the first internal thread 19 of the spiral anchor rod 1, so that the square plate 6 with the tapered nail 7 is matched with the thread on the spiral anchor rod 1 to clamp it on the mine wall. After clamping, the first ring plate 9 can be removed for the next anchor rod, and the second ring plate 13 can be removed after stabilization to save resources; when the length of the spiral anchor rod 1 is insufficient, the extension rod 10 with the second external thread 17 is inserted into the spiral anchor rod 1 provided with the second internal thread 20. The extension rod 10 with the top bead 11 is rotated to make the top bead 11 push open the conical plate 3 provided with the long hole 18, and then the mud is allowed to flow into the inside of the spiral anchor rod 1 through the slurry inlet hole 2, so that the extension rod 10 is fixed inside the spiral anchor rod 1, thereby solving the problems of insufficient anchoring force and limited reinforcement range caused by the insufficient length of the anchor rod.
[0028] 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, for those skilled in the art, they 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 in the protection scope of the present invention.
Claims
1. A mine fault support anchor rod, comprising a spiral anchor rod (1), characterized in that: A first internal thread (19) is provided on the left side of the middle part of the spiral anchor rod (1), a second ring plate (13) is provided on the left side of the middle part of the spiral anchor rod (1), a first external thread (4) is provided inside the second ring plate (13), the first external thread (4) is threadedly connected to the first internal thread (19), a third ring plate (15) is fixedly connected to the right side of the outside of the second ring plate (13), a square plate (6) is provided outside the third ring plate (15), an annular groove (16) is provided on the middle side of the inside of the square plate (6), and the third ring plate (15) slides inside the annular groove (16).
2. A mine fault support anchor according to claim 1, characterized in that: A second internal thread (20) is provided at the middle of the inner part of the spiral anchor rod (1), an extension rod (10) is provided at the inner part of the spiral anchor rod (1), a second external thread (17) is provided at the middle of the outer part of the extension rod (10), the second external thread (17) is threadedly connected to the second internal thread (20), and a conical plate (3) is fixedly connected to the right end of the spiral anchor rod (1), and a plurality of elongated holes (18) are equidistantly provided on the right side of the conical plate (3).
3. A mine fault support anchor according to claim 1, characterized in that: Square blocks (14) are fixedly connected to the front and rear sides of the exterior of the second ring plate (13) at equal distances, a first ring plate (9) is arranged outside the second ring plate (13), two square grooves (12) are arranged inside the first ring plate (9) at equal distances, and a handle (8) is fixedly connected to the upper and lower sides of the left part of the first ring plate (9).
4. A mine fault support anchor according to claim 3, characterized in that: The blocks (14) are all engaged with the square grooves (12).
5. A mine fault support anchor according to claim 2, characterized in that: A plurality of grouting holes (2) are equidistantly provided on the upper and lower sides of the exterior of the spiral anchor rod (1).
6. A mine fault support anchor according to claim 2, characterized in that: The right end of the extension rod (10) is fixedly connected with a top bead (11).
7. The mine fault support anchor according to claim 1, characterized in that: A grout stopper (5) is provided on the left side of the middle part of the spiral anchor rod (1).
8. The mine fault support anchor according to claim 1, characterized in that: Conical nails (7) are fixedly connected to the four right corners of the square plate (6) at equal distances.