Anti-corrosion anchor rod for mining large-deformation roadway

Abstract

The utility model discloses an anti-corrosion anchor rod for a mining large-deformation roadway, which comprises a fixed base plate, a rotating seat is fixedly arranged in the middle of the fixed base plate, and an anchor rod main body is rotatably arranged in the middle of the rotating seat. According to the anti-corrosion anchor rod, the reinforcing effect and the anti-corrosion effect can be achieved on the anchor rod body, the protective cover can be stably supported conveniently through the cooperative arrangement of a plurality of first reinforcing rings, a plurality of supporting rods and a plurality of second reinforcing rings, and the structural strength of the protective cover can be improved through the cooperative arrangement of a plurality of reinforcing strips, the first reinforcing rings and the second reinforcing rings; and by arranging the anti-corrosion coating, the anti-corrosion effect of the protective cover on the anchor rod body can be improved, and the situation that the service life of the anchor rod body is affected due to the fact that the anchor rod body is prone to being damaged when being extruded or corroded in the using process can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of anchor bolts, specifically an anti-corrosion anchor bolt for large deformation mine roadways. Background Technology

[0002] Rock bolts are a fundamental component of roadway support in modern coal mines, reinforcing the surrounding rock and allowing it to support itself. Rock bolts are used not only in mines but also in engineering projects for the main reinforcement of slopes, tunnels, and dams. As a tension member extending deep into the ground, one end of the rock bolt connects to the engineering structure, while the other end penetrates into the ground. The entire rock bolt consists of a free section and an anchored section. The free section is the area that transmits the tension at the bolt head to the anchored body, and its function is to apply prestress to the bolt. However, existing rock bolts suffer from poor structural strength and corrosion resistance, making them susceptible to damage and thus affecting their service life.

[0003] To address the aforementioned issues, a corrosion-resistant anchor bolt for large deformation mine roadways is proposed. Utility Model Content

[0004] The purpose of this utility model is to provide an anti-corrosion anchor bolt for large deformation mine roadways to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a corrosion-resistant anchor bolt for large deformation mine roadways, comprising a fixed base plate, a rotating seat fixedly disposed in the middle of the fixed base plate, an anchor bolt body rotatably disposed in the middle of the rotating seat, a protective cover fixedly disposed at the bottom end of the rotating seat, a plurality of first reinforcing rings fixedly disposed on the inner side of the protective cover, a plurality of support rods fixedly disposed on the inner side of each of the plurality of first reinforcing rings, a second reinforcing ring fixedly disposed in the middle between the plurality of support rods located on the same side, the plurality of second reinforcing rings being rotatably connected to the anchor bolt body, a fixed ring fixedly disposed at the bottom end of the protective cover, and an anchoring head fixedly disposed at the bottom end of the fixed ring.

[0006] By installing a protective cover on the surface of the anchor bolt body, the anchor bolt body can be strengthened and protected against corrosion. The combination of several first reinforcing rings, several support rods, and several second reinforcing rings facilitates the stable support of the protective cover. The combination of several reinforcing strips, first reinforcing rings, and second reinforcing rings can improve the structural strength of the protective cover, thereby enhancing the reinforcement and protection effect on the anchor bolt body. The application of an anti-corrosion coating can further enhance the anti-corrosion effect of the protective cover on the anchor bolt body, preventing damage to the anchor bolt body during use when subjected to pressure or corrosion, thus avoiding affecting its service life.

[0007] Preferably, a fastening bolt is provided at the bottom of the inner side of the anchor head. The fastening bolt is threadedly connected to the anchor rod body. By rotating the anchor rod body, the fastening bolt is moved upward.

[0008] Preferably, a rotating hole is provided at the connection between the rotating seat and the anchor body. The rotating hole is rotatably connected to the anchor body, and the rotating hole facilitates the stable rotation of the anchor body.

[0009] Preferably, the protective cover includes a base tube, on the surface of which a plurality of evenly distributed reinforcing strips are fixedly disposed. A first reinforcing ring is fixedly disposed on the outer side between the plurality of reinforcing strips. A second reinforcing ring is fixedly disposed on the surface of the first reinforcing ring. The surface of the second reinforcing ring is provided with an anti-corrosion coating. The combination of the plurality of reinforcing strips, the first reinforcing ring, and the second reinforcing ring can improve the structural strength of the protective cover, thereby improving the protective effect on the anchor bolt body. The anti-corrosion coating can improve the anti-corrosion performance of the protective cover.

[0010] Preferably, a rotating seat is engaged at the top of the anchor bolt body, and rotating the rotating seat causes the anchor bolt body to rotate.

[0011] Preferably, a connecting slot is provided at the connection between the anchor rod body and the rotating seat, and a connecting block is fixedly provided at the connection between the rotating seat and the anchor rod body. The connecting slot and the connecting block are engaged and connected, and the limiting engagement of the connecting slot and the connecting block facilitates the limiting of the rotating seat.

[0012] Preferably, the first reinforcing ring, the support rod, and the second reinforcing ring are all made of stainless steel, which has high hardness and good reinforcing effect.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] By installing a protective cover on the surface of the anchor bolt body, the anchor bolt body can be strengthened and protected against corrosion. The combination of several first reinforcing rings, several support rods, and several second reinforcing rings facilitates the stable support of the protective cover. The combination of several reinforcing strips, first reinforcing rings, and second reinforcing rings can improve the structural strength of the protective cover, thereby enhancing the reinforcement and protection effect on the anchor bolt body. The application of an anti-corrosion coating can further enhance the anti-corrosion effect of the protective cover on the anchor bolt body, preventing damage to the anchor bolt body during use when subjected to pressure or corrosion, thus avoiding affecting its service life. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present utility model;

[0016] Figure 2This is a front sectional view of the present invention;

[0017] Figure 3 This is an enlarged view of part A of this utility model;

[0018] Figure 4 This is a cross-sectional view of the protective cover of this utility model.

[0019] In the diagram: 1. Fixed base plate; 2. Rotating seat; 3. Anchor rod body; 4. Rotating seat; 5. Connecting slot; 6. Connecting block; 7. Protective cover; 71. Base tube; 72. Reinforcing strip; 73. First reinforcing ring; 74. Second reinforcing ring; 75. Anti-corrosion coating; 8. Fixing ring; 9. Anchor head; 10. Fastening bolt; 11. First reinforcing ring; 12. Support rod; 13. Second reinforcing ring; 14. Rotating hole. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] Please see Figure 1-4 This utility model provides a corrosion-resistant anchor bolt for large deformation roadways in mines, including a fixed base plate 1, a rotating seat 2 fixedly disposed in the middle of the fixed base plate 1, an anchor bolt body 3 rotatably disposed in the middle of the rotating seat 2, a protective cover 7 fixedly disposed at the bottom end of the rotating seat 2, a plurality of first reinforcing rings 11 fixedly disposed on the inner side of the protective cover 7, a plurality of support rods 12 fixedly disposed on the inner side of each of the plurality of first reinforcing rings 11, a second reinforcing ring 13 fixedly disposed in the middle between the plurality of support rods 12 located on the same side, the plurality of second reinforcing rings 13 being rotatably connected to the anchor bolt body 3, a fixing ring 8 fixedly disposed at the bottom end of the protective cover 7, and an anchoring head 9 fixedly disposed at the bottom end of the fixing ring 8. A protective cover 7 is provided on the surface of the anchor bolt body 3, which can strengthen the anchor bolt body 3 and prevent corrosion. The protective cover 7 is stably supported by the combination of several first reinforcing rings 11, several support rods 12 and several second reinforcing rings 13. The protective cover 7 is strengthened by the combination of several reinforcing strips 72, first reinforcing rings 73 and second reinforcing rings 74, thereby improving the strengthening and protection effect of the anchor bolt body 3. The anti-corrosion coating 75 can improve the anti-corrosion effect of the protective cover 7 on the anchor bolt body 3, and can prevent the anchor bolt body 3 from being easily damaged when it is squeezed or corroded during use, thus affecting its service life.

[0022] An anchor head 9 has a fastening bolt 10 at its bottom inner side. The fastening bolt 10 is threadedly connected to the anchor body 3. The rotating seat 2 is connected to the anchor body 3 with a rotating hole 14. The rotating hole 14 is rotatably connected to the anchor body 3. The protective cover 7 includes a base tube 71. Several evenly distributed reinforcing strips 72 are fixedly provided on the surface of the base tube 71. A first reinforcing ring 73 is fixedly provided on the outer side between the several reinforcing strips 72. A second reinforcing ring 74 is fixedly provided on the surface of the first reinforcing ring 73. An anti-corrosion coating 75 is provided on the surface of the second reinforcing ring 74.

[0023] In use, by rotating the anchor body 3, the fastening bolt 10 is moved upward. The setting of the rotating hole 14 facilitates the stable rotation of the anchor body 3. The combination of several reinforcing strips 72, the first reinforcing ring 73 and the second reinforcing ring 74 can improve the structural strength of the protective cover 7, thereby improving the protective effect on the anchor body 3. The setting of the anti-corrosion coating 75 can improve the anti-corrosion performance of the protective cover 7.

[0024] The top of the anchor bolt body 3 is fitted with a rotating seat 4. A connecting slot 5 is provided at the connection between the anchor bolt body 3 and the rotating seat 4. A connecting block 6 is fixedly provided at the connection between the rotating seat 4 and the anchor bolt body 3. The connecting slot 5 and the connecting block 6 are engaged and connected. The first reinforcing ring 11, the support rod 12 and the second reinforcing ring 13 are all made of stainless steel.

[0025] In use, rotating the rotating seat 4 drives the anchor rod body 3 to rotate. The connecting slot 5 and the connecting block 6 limit the rotation seat 4. The stainless steel material has high hardness and good strengthening effect.

[0026] In use, the protective cover 7 provided on the surface of the anchor bolt body 3 strengthens and protects against corrosion. The combination of several first reinforcing rings 11, several support rods 12, and several second reinforcing rings 13 provides stable support for the protective cover 7. The combination of several reinforcing strips 72, first reinforcing rings 73, and second reinforcing rings 74 improves the structural strength of the protective cover 7, thereby enhancing the reinforcement and protection of the anchor bolt body 3. The anti-corrosion coating 75 further enhances the corrosion protection of the anchor bolt body 3 by the protective cover 7, preventing damage to the anchor bolt body 3 during use when subjected to pressure or corrosion, thus affecting its service life.

[0027] 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 make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A corrosion-resistant anchor bolt for large deformation mine roadways, comprising a fixing base plate (1), characterized in that: A rotating seat (2) is fixedly provided in the middle of the fixed base plate (1). An anchor rod body (3) is rotatably provided in the middle of the rotating seat (2). A protective cover (7) is fixedly provided at the bottom end of the rotating seat (2). A plurality of first reinforcing rings (11) are fixedly provided on the inner side of the protective cover (7). A plurality of support rods (12) are fixedly provided on the inner side of each of the plurality of first reinforcing rings (11). A second reinforcing ring (13) is fixedly provided in the middle between the plurality of support rods (12) located on the same side. The plurality of second reinforcing rings (13) are rotatably connected to the anchor rod body (3). A fixing ring (8) is fixedly provided at the bottom end of the protective cover (7). An anchor head (9) is fixedly provided at the bottom end of the fixing ring (8).

2. The anti-corrosion anchor bolt for large deformation mine roadways according to claim 1, characterized in that: The bottom of the inner side of the anchor head (9) is provided with a fastening bolt (10), which is threadedly connected to the anchor body (3).

3. The anti-corrosion anchor bolt for large deformation mine roadways according to claim 1, characterized in that: A rotating hole (14) is provided at the connection between the rotating seat (2) and the anchor body (3), and the rotating hole (14) is rotatably connected to the anchor body (3).

4. The anti-corrosion anchor bolt for large deformation mine roadways according to claim 1, characterized in that: The protective cover (7) includes a base tube (71), and a plurality of uniformly distributed reinforcing strips (72) are fixedly provided on the surface of the base tube (71). A first reinforcing ring (73) is fixedly provided on the outer side between the plurality of reinforcing strips (72). A second reinforcing ring (74) is fixedly provided on the surface of the first reinforcing ring (73). An anti-corrosion coating (75) is provided on the surface of the second reinforcing ring (74).

5. The anti-corrosion anchor bolt for large deformation mine roadways according to claim 1, characterized in that: The top of the anchor body (3) is fitted with a rotating seat (4).

6. The anti-corrosion anchor bolt for large deformation mine roadways according to claim 5, characterized in that: A connecting slot (5) is provided at the connection between the anchor rod body (3) and the rotating seat (4), and a connecting block (6) is fixedly provided at the connection between the rotating seat (4) and the anchor rod body (3). The connecting slot (5) and the connecting block (6) are engaged and connected.

7. The anti-corrosion anchor bolt for large deformation mine roadways according to claim 1, characterized in that: The first reinforcing ring (11), the support rod (12), and the second reinforcing ring (13) are all made of stainless steel.

Images