Supporting anchor rod fixing device for roadway

Abstract

The invention discloses a supporting anchor rod fixing device for a roadway, and relates to the technical field of anchor rods, the supporting anchor rod fixing device comprises an anchor rod body, an anchor head is fixedly mounted at one end of the anchor rod body, a tray is arranged on one side of the exterior of the anchor rod body in a sleeving manner, and a positioning nut is in threaded connection with the portion, located on one side of the tray, of the exterior of the anchor rod body; the anchor rod comprises two anchor rod bodies which are symmetrically arranged on one side of a tray, the fixing assemblies comprise fixing frames and fastening assemblies which are arranged in the anchor rod body, the fixing frames are symmetrically installed on one side of the tray, the fixing frames are symmetrically arranged on one side of the tray, a supporting frame is fixedly installed between the two fixing frames in each set, and one side of the outer portion of each supporting frame is sleeved with a movable frame. According to the anchor rod, the metal net can be reliably fixed when a roadway is supported, the supporting effect of the roadway can be improved through cooperation of the anchor rod body and the metal net, the metal net is prevented from moving easily in the supporting process, and the supporting reliability is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of anchor bolts, and specifically relates to a fixing device for a supporting anchor bolt for a roadway. Background Art

[0002] An anchor bolt is the most basic component of roadway support in contemporary coal mines. It reinforces the surrounding rock of the roadway together, enabling the surrounding rock to support itself. Now, anchor bolts are not only used in mines but also in engineering technologies to reinforce the main bodies of slopes, tunnels, and dams.

[0003] For example, for a roadway support anchor bolt with the publication number CN213899025U, when inserted, the filter piece can prevent the residual rock and soil in the hole from entering the hollow pull rod. After being inserted in place, the filter piece is removed through a removing mechanism, and then grouting is completed, thereby preventing the hollow pull rod from entering the rock and soil and improving the grouting effect; in the support work of coal mine roadways, in order to prevent the roadway from collapsing and producing falling rocks, the roadway is supported by using an anchor bolt and a metal mesh together. The metal mesh is fastened by the tray on the anchor bolt. During the fastening process, only the tray is used to fasten the metal mesh. The contact area between the tray and the metal mesh is limited, and the fixing reliability of the metal mesh is poor. Moreover, if the rock surface is not cleaned properly and there are protrusions on the rock surface, after the tray contacts the rock surface, the whole tray cannot fit evenly with the rock surface. After the metal mesh is fixed, it is easy to become loose, affecting the fixing effect of the metal mesh. If subsequent falling rocks and collapses occur in the roadway and the metal mesh is not fixed firmly, the metal mesh may sag or even tear under pressure, affecting the support effect of the metal mesh, and there are certain defects in use.

[0004] Therefore, we propose a fixing device for a supporting anchor bolt for a roadway to solve the problems raised above. Summary of the Invention

[0005] The purpose of the present invention is to provide a fixing device for a supporting anchor bolt for a roadway to solve the problem that when the roadway is supported by using an anchor bolt and a metal mesh together, and the metal mesh is fastened by the tray on the anchor bolt, during the fastening process, only the tray is used to fasten the metal mesh, the contact area between the tray and the metal mesh is limited, and the fixing reliability of the metal mesh is poor as mentioned in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A fixing device for a supporting anchor bolt for a roadway includes an anchor bolt body. One end of the anchor bolt body is fixedly installed with an anchor head, and a tray is sleeved on one side of the outer part of the anchor bolt body. And a positioning nut is threadedly connected to the outer part of the anchor bolt body on one side of the tray. It further includes: A fixing component, symmetrically arranged on one side of the tray. The fixing component includes a fixing frame; The fastening assembly is arranged inside the bolt body; The fixing frames are symmetrically installed on one side of the tray. There are two groups of fixing frames symmetrically arranged on one side of the tray, and a support frame is fixedly installed between every two fixing frames in each group. An activity frame is sleeved on the outer side of the support frame. A fixing platform is fixedly installed on one side of the activity frame. A plurality of convex strips are fixedly installed on the outer side of the fixing platform; The positioning rod is rotatably connected to one side of the fixing platform. A placement groove is formed through one side of the positioning rod, and a fixing ring is fixedly installed on the outer side of the positioning rod.

[0007] Preferably, a telescopic spring is sleeved on the outer side of the positioning rod on the side of the fixing ring. One end of the telescopic spring is fixedly connected to the fixing ring, and the other end of the telescopic spring is fixedly installed with a movable ring. The movable ring is slidably connected to the positioning rod.

[0008] By adopting the above technical solution, the movable ring can always be in contact with the metal mesh during the process of inserting the positioning rod into the rock formation.

[0009] Preferably, fixing rods are symmetrically installed on the side of the movable ring close to the fixing ring. Both fixing rods are fixedly connected to the movable ring. An activity groove is formed inside the fixing rod. An activity block is slidably connected inside the activity groove. An activity rod is slidably connected inside the fixing rod. The activity block is fixedly connected to the activity rod. An adaptation spring is sleeved on the outer side of the activity rod on the side of the activity block. Both ends of the adaptation spring are respectively fixedly connected to the activity block and the activity groove. Installation blocks are fixedly installed at the ends of the two activity rods far away from the activity block.

[0010] By adopting the above technical solution, the movement of the fixing rod can drive the movement of the installation block.

[0011] Preferably, sliding rods are symmetrically and slidably connected inside the activity frame. Installation rings are fixedly installed at one ends of the two sliding rods. Activity plates are fixedly installed at the other ends of the two sliding rods. Two groups of guide rods are symmetrically and slidably connected to both sides inside the activity plate. A return spring is sleeved on the outer side of each of the two guide rods. Both ends of the return spring are respectively fixedly connected to the activity frame and the activity plate.

[0012] By adopting the above technical solution, the movement of the tray can drive the movement of the activity plate.

[0013] Preferably, a bite plate is fixedly installed on the side of the activity plate far away from the activity frame. Limit plates are fixedly installed on one side of the tray where the two bite plates are located.

[0014] By adopting the above technical solution, the activity frame can be positioned during the fixing process of the metal mesh.

[0015] Preferably, moving rods are symmetrically and slidably connected inside both mounting blocks, and positioning sleeves are fixedly installed at one ends of the two moving rods. A plurality of rubber strips are fixedly installed on one side of the positioning sleeve close to the fixed table, and a mounting plate is fixedly installed on one side of the positioning sleeve.

[0016] By adopting the above technical solution, the positioning rod can be positioned during the fixing process of the metal mesh.

[0017] Preferably, a moving frame is fixedly installed on one side of the mounting plate, and a sliding groove is formed through one side of the moving frame. A column rod is slidably connected inside the sliding groove, and connecting frames are fixedly installed at both ends of the column rod. The connecting frames are fixedly connected to the fixed rods.

[0018] By adopting the above technical solution, when the fixed rod moves and the mounting block does not move, the fixed rod can drive the positioning sleeve to move.

[0019] Preferably, the fastening assembly includes a plurality of support blocks fixedly installed inside the bolt body. A push rod is slidably connected inside the plurality of support blocks, and a moving block is fixedly installed at one end of the push rod. Support rods are symmetrically installed on one side of the moving block inside the bolt body, and sliding plates are symmetrically and slidably connected to the outer sides of the two support rods.

[0020] By adopting the above technical solution, the reliability of the fixing of the bolt body can be improved.

[0021] Preferably, fastening rods are symmetrically installed on both sides of the two sliding plates away from each other. The fastening rods are slidably connected to the bolt body. Connecting rods are symmetrically hinged to one side of the moving block. The ends of the two connecting rods away from the moving block are respectively hinged to the two sliding plates.

[0022] By adopting the above technical solution, the movement of the push rod can make the fastening rods extend out of the bolt body.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows: For the supporting bolt fixing device for the roadway, when supporting the roadway, the metal mesh can be reliably fixed. Through the cooperation of the bolt body and the metal mesh, the supporting effect of the roadway can be improved, preventing the metal mesh from moving easily during the supporting process and enhancing the supporting reliability; 1. When supporting a roadway, drill holes in the rock formation, and then insert the bolt body into the holes. It is possible to grout into the holes through the bolt body. After the slurry solidifies, the bolt body is fixed. Then, the movable frame can be moved according to the position of the winding nodes on the metal mesh, and the positioning rod can be rotated on the fixed table. Thus, the winding nodes on the metal mesh can be stuck in the placement groove. After that, the staff can rotate the nut. After the nut rotates, it pushes the tray to move, making the tray approach the rock formation. The nodes on the metal mesh are stuck in the placement groove. As the tray moves, it can drive the positioning rod to move, so that the positioning rod can be inserted into the rock formation. After the positioning rod is inserted into the rock formation, the tray continues to move, making the movable ring contact the rock surface. Then, as the tray moves, the movable ring can slide on the positioning rod, so that the telescopic spring can be compressed and the fixed rod can be driven to slide on the fixed ring, causing the fixed rod and the movable rod to move, and making the installation block contact the movable ring. Then, the tray continues to move. The elastic coefficient of the return spring is less than that of the adaptive spring. Subsequently, the tray movement can push the installation ring to move, making the installation ring gradually fit with the movable frame. While the installation ring moves, it can drive the movable plate to move through the sliding rod, making the movable plate slide on the guide rod and stretch the return spring. After the installation ring moves and fits with the movable frame, the engaging plate fits with the limiting plate. The movable frame is positioned through the engagement of the teeth between the engaging plate and the limiting plate. The metal mesh nodes can be limited by the positioning rod. It is possible to reliably fix the metal mesh without the tray contacting the rock surface, enabling reliable fixation of the metal mesh when supporting the roadway. Through the cooperation of the bolt body and the metal mesh, the support effect of the roadway can be improved, preventing the metal mesh from moving easily during the support process and enhancing the support reliability; 2. When fixing the wire mesh, as the positioning rod is inserted into the rock formation, the movable frame can be automatically positioned. After the movable frame is positioned, the tray continues to move, enabling the movable block to slide in the movable groove, stretching the adaptable spring. At this time, the mounting block abuts against the mounting ring, and the mounting ring abuts against the movable frame. The movable block does not move relative to the tray, and the insertion of the positioning rod causes the fixing rod to move. After the fixing rod moves, it drives the connecting frame to move, and then through the sliding connection between the column rod and the sliding groove of the connecting frames, the movable frame is pushed to move, thereby driving the positioning sleeve to move, making the two positioning sleeves closely fit outside the fixing table. The friction is increased through the rubber strip and the convex strip. At this time, the positioning rod can be positioned so that it does not rotate easily. Then the tray can continue to move. During the movement of the tray, the column rod can move in the straight section of the sliding groove, further inserting the positioning rod into the rock formation, making the wire mesh nodes abut against the rock surface and the inner side of the placement groove respectively, so that the wire mesh nodes do not move easily. After the wire mesh is reliably fixed, the positioning rod does not shift easily, preventing the positioning rod from moving when the wire mesh is stressed during the support process. Moreover, the movable ring can always fit with the wire mesh, preventing the wire mesh from deforming when stressed during the support process, improving the reliability of the support; 3. When the grouting is completed after the bolt body is inserted into the hole, the push rod can be moved downward. The push rod slides on the support block for positioning, and the support block does not cause blockage inside the bolt body. After the push rod moves, it can pull the movable block to move, causing the two connecting rods to rotate. The rotation of the connecting rods can drive the two sliding plates to move away from each other, and then drive the two groups of fastening rods to extend out of the bolt body. By extending the fastening rods, the reliability of fixing the bolt body can be improved, preventing the bolt body from being disengaged from the hole, and improving the practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the tray structure of the present invention; Figure 3 is a schematic diagram of the fixing component structure of the present invention; Figure 4 is a schematic diagram of the partial exploded structure of the fixing component of the present invention; Figure 5 is a schematic diagram of the cross-sectional structure of the fixing rod of the present invention; Figure 6 is a schematic diagram of the movable frame structure of the present invention; Figure 7 of the present invention Figure 6 is an enlarged schematic diagram of area A in the present invention; Figure 8 of the present invention Figure 4 is an enlarged schematic diagram of area B in the present invention; Figure 9 This is a schematic structural diagram of the fastening component of the present invention.

[0025] In the figure: 1, bolt body; 101, anchor head; 102, nut; 103, tray; 2, fixing component; 201, fixing frame; 202, support frame; 203, movable frame; 204, fixing table; 205, positioning rod; 206, placement groove; 207, fixing ring; 208, telescopic spring; 209, movable ring; 210, fixing rod; 211, movable groove; 212, movable block; 213, movable rod; 214, adapting spring; 215, mounting block; 216, sliding rod; 2161, mounting ring; 217, movable plate; 218, guide rod; 219, reset spring; 220, engaging plate; 221, limiting plate; 222, moving rod; 223, positioning sleeve; 224, mounting plate; 225, moving frame; 226, connecting frame; 227, column rod; 228, sliding groove; 3, fastening component; 301, support block; 302, push rod; 303, moving block; 304, support rod; 305, sliding plate; 306, connecting rod; 307, fastening rod. Specific embodiments

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] Please refer to Figures 1-9 , the present invention provides a technical solution: a support bolt fixing device for a roadway, including a bolt body 1, one end of the bolt body 1 is fixedly installed with an anchor head 101, and a tray 103 is sleeved on one side of the outer part of the bolt body 1, and a positioning nut 102 is threadedly connected to one side of the outer part of the bolt body 1 where the tray 103 is located; It further includes: A fixing component 2, symmetrically arranged on one side of the tray 103, and the fixing component 2 includes a fixing frame 201; The fixing frame 201 is symmetrically installed on one side of the tray 103. The fixing frame 201 is symmetrically arranged on one side of the tray 103 in two groups, and a support frame 202 is fixedly installed between every two fixing frames 201 in each group. Moreover, a movable frame 203 is sleeved on the outer side of the support frame 202. At the same time, a fixing table 204 is fixedly installed on one side of the movable frame 203, and a number of convex strips are fixedly installed on the outer part of the fixing table 204; The positioning rod 205 is rotatably connected to one side of the fixed platform 204. A placement groove 206 is formed through one side of the positioning rod 205, and a fixing ring 207 is fixedly installed on the outer side of the positioning rod 205; A telescopic spring 208 is sleeved on the outer side of the positioning rod 205 on the side of the fixing ring 207. One end of the telescopic spring 208 is fixedly connected to the fixing ring 207, and the other end of the telescopic spring 208 is fixedly installed with a movable ring 209. At the same time, the movable ring 209 is slidably connected to the positioning rod 205; On the side of the movable ring 209 close to the fixing ring 207, fixing rods 210 are symmetrically installed. Both fixing rods 210 are fixedly connected to the movable ring 209. An activity groove 211 is formed inside the fixing rod 210. At the same time, an activity block 212 is slidably connected inside the activity groove 211. Moreover, an activity rod 213 is slidably connected inside the fixing rod 210. The activity block 212 is fixedly connected to the activity rod 213. An adaptation spring 214 is sleeved on the outer side of the activity rod 213 on the side of the activity block 212. At the same time, both ends of the adaptation spring 214 are fixedly connected to the activity block 212 and the activity groove 211 respectively. Moreover, installation blocks 215 are fixedly installed at the ends of both activity rods 213 far from the activity block 212; Sliding rods 216 are symmetrically and slidably connected inside the activity frame 203. One end of both sliding rods 216 is fixedly installed with an installation ring 2161, and the other end of both sliding rods 216 is fixedly installed with an activity plate 217. At the same time, two groups of guide rods 218 are symmetrically and slidably connected to both sides inside the activity plate 217. Moreover, a reset spring 219 is sleeved on the outer side of both guide rods 218. The two ends of the reset spring 219 are fixedly connected to the activity frame 203 and the activity plate 217 respectively; A clamping plate 220 is fixedly installed on the side of the activity plate 217 far from the activity frame 203. Limit plates 221 are fixedly installed on one side of the tray 103 where the two clamping plates 220 are located.

[0028] Example 1: As Figures 1-7As shown in the figure, when supporting a roadway, drill holes in the rock formation, and then insert the bolt body 1 into the holes. It is possible to grout into the holes through the bolt body 1. After the slurry solidifies, the bolt body 1 is fixed. Then, the movable frame 203 can be moved according to the position of the winding nodes on the metal mesh, and the positioning rod 205 can be rotated on the fixed table 204. Thus, the winding nodes on the metal mesh can be stuck in the placement groove 206. After that, the staff can rotate the nut 102. After the nut 102 rotates, it pushes the tray 103 to move, making the tray 103 approach the rock formation. The nodes on the metal mesh are stuck in the placement groove 206. As the tray 103 moves, it can drive the positioning rod 205 to move, so that the positioning rod 205 can be inserted into the rock formation. After the positioning rod 205 is inserted into the rock formation, the tray 103 continues to move, making the movable ring 209 contact the rock surface. Then, as the tray 103 moves, the movable ring 209 can slide on the positioning rod 205, so that the telescopic spring 208 can be compressed and the fixed rod 210 can be driven to slide on the fixed ring 207, making the fixed rod 210 and the movable rod 213 move, and the mounting block 215 contact the movable ring 209. After that, the tray 103 continues to move. The elastic coefficient of the reset spring 219 is less than that of the adaptive spring 214. Subsequently, the tray 103 can push the mounting ring 2161 to move, making the mounting ring 2161 gradually fit with the movable frame 203. While the mounting ring 2161 moves, it can drive the movable plate 217 to move through the sliding rod 216, making the movable plate 217 slide on the guide rod 218 and stretch the reset spring 219. After the mounting ring 2161 moves and fits with the movable frame 203, the engaging plate 220 fits with the limiting plate 221. The movable frame 203 is positioned by the engagement of the teeth between the engaging plate 220 and the limiting plate 221. The metal mesh nodes can be limited by the positioning rod 205. Without the tray 103 contacting the rock surface, the metal mesh can be reliably fixed. When supporting the roadway, the metal mesh can be reliably fixed. Through the cooperation of the bolt body 1 and the metal mesh, the supporting effect of the roadway can be improved, preventing the metal mesh from moving easily during the support process and enhancing the support reliability.

[0029] Two moving rods 222 are symmetrically and slidably connected inside both mounting blocks 215. One end of each of the two moving rods 222 is fixedly installed with a positioning sleeve 223. A number of rubber strips are fixedly installed on the side of the positioning sleeve 223 close to the fixed table 204. Meanwhile, a mounting plate 224 is fixedly installed on one side of the positioning sleeve 223; A moving frame 225 is fixedly installed on one side of the mounting plate 224. A sliding groove 228 is formed through one side of the moving frame 225. A column rod 227 is slidably connected inside the sliding groove 228. Both ends of the column rod 227 are fixedly installed with connecting frames 226. Moreover, the connecting frames 226 are fixedly connected to the fixed rod 210.

[0030] Example 2: As Figures 3-4 and Figure 8 shown, when fixing the metal mesh, as the positioning rod 205 is inserted into the rock formation, the movable frame 203 can be automatically positioned. After the movable frame 203 is positioned, the tray 103 continues to move, so that the movable block 212 can slide in the movable groove 211, enabling the stretching and adaptation of the spring 214. At this time, the mounting block 215 abuts against the mounting ring 2161, the mounting ring 2161 abuts against the movable frame 203, the movable block 212 does not move relative to the tray 103, and the insertion of the positioning rod 205 enables the fixing rod 210 to move. After the fixing rod 210 moves, it drives the connecting frame 226 to move. Then, through the sliding connection between the column rod 227 and the sliding groove 228 between the connecting frames 226, the movable frame 225 is pushed to move, and then the positioning sleeve 223 can be driven to move, so that the two positioning sleeves 223 can closely fit around the outside of the fixed table 204. By means of the rubber strip and the convex strip, the friction force is increased. At this time, the positioning rod 205 can be positioned, so that the positioning rod 205 does not rotate easily. After that, the tray 103 can continue to move. During the movement of the tray 103, the column rod 227 can move in the straight section of the sliding groove 228, so that the positioning rod 205 continues to be inserted into the rock formation, and the metal mesh nodes are respectively abutted against the rock surface and the inner side of the placement groove 206, so that the metal mesh nodes do not move easily. After the metal mesh is reliably fixed, the positioning rod 205 does not shift easily, preventing the positioning rod 205 from being driven to move by the force on the metal mesh during the support process. Moreover, the movable ring 209 can always be in contact with the metal mesh, preventing the metal mesh from deforming under force during the support process and improving the reliability of the support.

[0031] The fastening assembly 3 is arranged inside the bolt body 1; The fastening assembly 3 includes a plurality of support blocks 301 fixedly installed inside the bolt body 1. A push rod 302 is slidably connected inside the plurality of support blocks 301. One end of the push rod 302 is fixedly installed with a moving block 303. At the same time, on one side of the moving block 303 inside the bolt body 1, support rods 304 are symmetrically installed. Moreover, sliding plates 305 are symmetrically and slidably connected to the outside of the two support rods 304; On both sides of the two sliding plates 305 away from each other, fastening rods 307 are symmetrically installed. The fastening rods 307 are slidably connected to the bolt body 1. One side of the moving block 303 is symmetrically hinged with connecting rods 306. At the same time, the ends of the two connecting rods 306 away from the moving block 303 are respectively hinged to the two sliding plates 305.

[0032] Example 3: As Figure 1 and Figure 9As shown, when grouting is completed after the anchor rod body 1 is inserted into the hole, the push rod 302 can be moved downward. The push rod 302 slides on the support block 301 for positioning, and the support block 301 will not cause blockage inside the anchor rod body 1. After the push rod 302 moves, it can drive the moving block 303 to move, causing the two connecting rods 306 to rotate. The rotation of the connecting rods 306 can drive the two sliding plates 305 to move away from each other, and then drive the two groups of fastening rods 307 to extend out of the anchor rod body 1. By extending the fastening rods 307, the reliability of fixing the anchor rod body 1 can be improved, preventing the anchor rod body 1 from being disengaged from the hole, thus enhancing the practicality.

[0033] Working principle: When using the fixing device for supporting anchor rods in roadways, first, according to Figures 1-9 As shown, when supporting a roadway, a hole is drilled in the rock formation, and then the anchor rod body 1 extends into the hole. Grout can be injected into the hole through the anchor rod body 1. After the grout solidifies, the anchor rod body 1 is fixed. Then, the movable frame 203 can be moved according to the position of the winding node on the metal mesh, and the positioning rod 205 is rotated on the fixed table 204, so that the winding node on the metal mesh can be stuck in the placement groove 206. Then, the staff can rotate the nut 102. After the nut 102 rotates, it pushes the tray 103 to move, making the tray 103 approach the rock formation. The node on the metal mesh is stuck in the placement groove 206. As the tray 103 moves, it drives the positioning rod 205 to move, enabling the positioning rod 205 to be inserted into the rock formation. After the positioning rod 205 is inserted into the rock formation, the tray 103 continues to move, causing the movable ring 209 to contact the rock surface. Then, as the tray 103 moves, the movable ring 209 slides on the positioning rod 205, compressing the telescopic spring 208 and driving the fixed rod 210 to slide on the fixed ring 207, causing the fixed rod 210 and the movable rod 213 to move, and the mounting block 215 to contact the movable ring 209. Then, the tray 103 continues to move. The elastic coefficient of the return spring 219 is less than that of the adaptive spring 214. Subsequently, the tray 103 moves to push the mounting ring 2161 to move, making the mounting ring 2161 gradually fit with the movable frame 203. While the mounting ring 2161 moves, it drives the movable plate 217 to move through the sliding rod 216, causing the movable plate 217 to slide on the guide rod 218 and stretch the return spring 219. After the mounting ring 2161 moves and fits with the movable frame 203, the engaging plate 220 fits with the limiting plate 221. The movable frame 203 is positioned by the engagement of the teeth between the engaging plate 220 and the limiting plate 221. The metal mesh node can be limited by the positioning rod 205, and the metal mesh can be reliably fixed without the tray 103 contacting the rock surface; When fixing the wire mesh, as the positioning rod 205 is inserted into the rock formation, the movable frame 203 can be automatically positioned. After the movable frame 203 is positioned, the tray 103 continues to move, enabling the movable block 212 to slide in the movable slot 211, stretching and adapting the spring 214. At this time, the mounting block 215 abuts against the mounting ring 2161, and the mounting ring 2161 abuts against the movable frame 203. The movable block 212 does not move relative to the tray 103, and the insertion of the positioning rod 205 causes the fixing rod 210 to move. After the fixing rod 210 moves, it drives the connecting frame 226 to move. Then, through the sliding connection between the column rod 227 and the sliding slot 228 of the connecting frames 226, the movable frame 225 is pushed to move, and then the positioning sleeve 223 can be driven to move, so that the two positioning sleeves 223 can closely fit around the outside of the fixed table 204. By means of the rubber strip and the convex strip, the friction force is increased. At this time, the positioning rod 205 can be positioned, preventing it from rotating easily. Then, the tray 103 can continue to move. During the movement of the tray 103, the column rod 227 can move in the straight section of the sliding slot 228, further inserting the positioning rod 205 into the rock formation, causing the wire mesh nodes to abut against the rock surface and the inner side of the placement groove 206 respectively. When the anchor rod body 1 is grouted after being inserted into the hole, the push rod 302 can move downward. The push rod 302 slides on the support block 301 for positioning, and the support block 301 does not cause blockage inside the anchor rod body 1. After the push rod 302 moves, it can pull the movable block 303 to move, causing the two connecting rods 306 to rotate. The rotation of the connecting rods 306 can drive the two sliding plates 305 to move away from each other, and then drive the two groups of fastening rods 307 to extend out of the anchor rod body 1.

[0034] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0035] 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 within the protection scope of the present invention.

Claims

1. A support bolt fixing device for a roadway, comprising a bolt body (1), one end of the bolt body (1) is fixedly installed with an anchor head (101), and a tray (103) is sleeved on one side of the outer part of the bolt body (1), and a positioning nut (102) is threadedly connected to the outer part of the bolt body (1) on one side of the tray (103); It is characterized in that It further includes: A fixing component (2), symmetrically arranged on one side of the tray (103), and the fixing component (2) includes a fixing frame (201); A fastening component (3), arranged inside the bolt body (1); The fixing frame (201), symmetrically installed on one side of the tray (103), the fixing frame (201) is symmetrically arranged on one side of the tray (103) in two groups, and a support frame (202) is fixedly installed between every two fixing frames (201) in each group, and a movable frame (203) is sleeved on one side of the outer part of the support frame (202), and a fixing table (204) is fixedly installed on one side of the movable frame (203), and a plurality of convex strips are fixedly installed on the outer part of the fixing table (204); A positioning rod (205), rotatably connected to one side of the fixing table (204), a placement groove (206) is opened through one side of the positioning rod (205), and a fixing ring (207) is fixedly installed on one side of the outer part of the positioning rod (205).

2. The fixing device for a supporting bolt used in a roadway according to claim 1, characterized in that: A telescopic spring (208) is sleeved on the outer part of the positioning rod (205) on one side of the fixing ring (207), one end of the telescopic spring (208) is fixedly connected to the fixing ring (207), and the other end of the telescopic spring (208) is fixedly installed with a movable ring (209), and the movable ring (209) is slidably connected to the positioning rod (205).

3. The fixing device for a supporting bolt in a roadway according to claim 2, characterized in that: On one side of the movable ring (209) close to the fixing ring (207), fixing rods (210) are symmetrically installed, and both fixing rods (210) are fixedly connected to the movable ring (209), and a movable groove (211) is opened inside the fixing rod (210), and a movable block (212) is slidably connected inside the movable groove (211), and a movable rod (213) is slidably connected inside the fixing rod (210), and the movable block (212) is fixedly connected to the movable rod (213), and an adaptation spring ( 4. The fixing device for a supporting bolt in a roadway according to claim 1, characterized in that: Inside the movable frame (203), sliding rods (216) are symmetrically and slidably connected. One end of each of the two sliding rods (216) is fixedly installed with a mounting ring (2161), and the other end of each of the two sliding rods (216) is fixedly installed with a movable plate (217). At the same time, two groups of guide rods (218) are symmetrically and slidably connected to both sides inside the movable plate (217). A return spring (219) is sleeved on the outer side of each of the two guide rods (218), and both ends of the return spring (219) are fixedly connected to the movable frame (203) and the movable plate (217) respectively.

5. The fixing device for a supporting bolt in a roadway according to claim 4, characterized in that: A clamping plate (220) is fixedly installed on the side of the movable plate (217) away from the movable frame (203), and a limiting plate (221) is fixedly installed on one side of the tray (103) located between the two clamping plates (220).

6. The fixing device for the supporting bolt used in the roadway according to claim 3, characterized in that: Inside each of the two mounting blocks (215), moving rods (222) are symmetrically and slidably connected. One end of each of the two moving rods (222) is fixedly installed with a positioning sleeve (223), and a number of rubber strips are fixedly installed on the side of the positioning sleeve (223) close to the fixed table (204). At the same time, a mounting plate (224) is fixedly installed on one side of the positioning sleeve (223).

7. The fixing device for a supporting bolt in a roadway according to claim 6, characterized in that: A moving frame (225) is fixedly installed on one side of the mounting plate (224). A sliding groove (228) is formed through one side of the moving frame (225), and a column rod (227) is slidably connected inside the sliding groove (228). At the same time, connection frames (226) are fixedly installed at both ends of the column rod (227), and the connection frames (226) are fixedly connected to the fixed rod (210).

8. A fixing device for a support bolt in a roadway according to claim 1, characterized in that: The fastening assembly (3) includes a number of support blocks (301) fixedly installed inside the anchor rod body (1). A push rod (302) is slidably connected inside the number of support blocks (301). One end of the push rod (302) is fixedly installed with a moving block (303). At the same time, support rods (304) are symmetrically installed on one side of the moving block (303) inside the anchor rod body (1). A sliding plate (305) is symmetrically and slidably connected to the outside of the two support rods (304).

9. The fixing device for a supporting bolt in a roadway according to claim 8, characterized in that: Fastening rods (307) are symmetrically installed on both sides of the two sliding plates (305) away from each other. The fastening rods (307) are slidably connected to the anchor rod body (1). Connecting rods (306) are symmetrically hinged to one side of the moving block (303). At the same time, one end of each of the two connecting rods (306) away from the moving block (303) is hinged to the two sliding plates (305) respectively.

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