Strong unloading rock mass pre-stressed anchor cable construction drilling directional control device

Abstract

The invention discloses a strong unloading rock mass pre-stressed anchor cable construction drilling directional control device, and belongs to the field of anchor cable construction. Comprising an orientation mechanism, and a guide mechanism is arranged above the orientation mechanism; a movable clamping mechanism is arranged on the left side of the upper surface of the guide mechanism; a fixed clamping mechanism is arranged on the right side of the upper surface of the guide mechanism; a plurality of drill rods are arranged between the movable clamping mechanism and the fixed clamping mechanism; the movable clamping mechanism comprises a sliding seat, and the inner side of the sliding seat is fixedly connected with a first guide rod. Height adjustment is achieved through cooperation of the two-way screw and the inclined supporting rod, compared with a traditional fixing support or a simple bolt adjusting structure, real-time adjustment can be achieved according to the height of a working face, and stable lifting is guaranteed through auxiliary supporting of the transverse rod and the movable sleeve in the adjusting process; the problems that an existing device is limited in height adjusting range and low in precision are effectively solved.

Description

Technical Field

[0001] This invention relates to the field of anchor cable construction, and in particular to a borehole directional control device for prestressed anchor cable construction in strongly unloaded rock mass. Background Technology

[0002] In major engineering projects such as water conservancy and hydropower, mining, and transportation tunnels, heavily unloaded rock masses are prone to problems such as fracture development and structural loosening due to factors such as geological tectonic movements and excavation disturbances, making them a critical area for engineering safety control. Prestressed anchor cable construction technology, as a core method for reinforcing heavily unloaded rock masses, effectively suppresses rock deformation and enhances rock mass stability by implanting anchor cables and applying prestress. The drilling direction accuracy and anchor cable clamping reliability directly determine the reinforcement effect and are core control links in the construction process. Currently, the drilling control devices used in prestressed anchor cable construction for heavily unloaded rock masses face three major technical challenges in practical applications, severely restricting construction efficiency and project quality.

[0003] Existing devices mostly use fixed supports or simple bolt adjustment structures, which have limited height adjustment range and low adjustment accuracy. Fixed supports cannot be adjusted in real time according to the height of the working face. In addition, the reinforcement of rock masses with strong unloading has strict requirements on the drilling angle of anchor cables. The drilling inclination angle needs to be set accurately according to the stress distribution and fracture direction of the rock mass. Excessive angle deviation will cause the force direction of the anchor cable to be inconsistent with the design, reduce the reinforcement effect of the rock mass, and even cause safety hazards such as anchor cable slippage and rock mass instability. Furthermore, the existing drilling devices are not convenient for controlling the clamping of the drill rod and the release of the drill rod after drilling. Improvements are needed. Therefore, we propose a drilling directional control device for prestressed anchor cable construction in rock masses with strong unloading. Summary of the Invention

[0004] Purpose of the invention: The purpose of this invention is to provide a borehole orientation control device for prestressed anchor cable construction in strongly unloaded rock masses, in order to solve the problems of limited height adjustment range and low adjustment accuracy of existing borehole control devices. This device enables real-time and precise adjustment of the device height according to the working face height. At the same time, by integrating a precise angle control mechanism, the borehole inclination angle can be quickly set and locked according to the rock mass stress distribution and fracture orientation, avoiding mismatch of anchor cable stress, reduced reinforcement effect and safety hazards caused by angle deviation, thereby improving the orientation accuracy and safety of anchor cable construction in strongly unloaded rock masses.

[0005] Another objective of this invention is to provide a borehole orientation control device for prestressed anchor cable construction in strongly unloaded rock masses. By optimizing the drill rod clamping and releasing control structure, it achieves stability during drill rod clamping and convenience of releasing operation after drilling, reducing construction interruptions or drilling deviations caused by unreliable drill rod clamping. At the same time, it simplifies the releasing operation process, reduces the intensity of manual operation, and further improves the overall efficiency and quality stability of prestressed anchor cable construction in strongly unloaded rock masses.

[0006] Technical solution: A drilling directional control device for prestressed anchor cable construction in strongly unloaded rock mass, comprising a directional mechanism, and a guide mechanism is provided above the directional mechanism;

[0007] A movable clamping mechanism is provided on the left side of the upper surface of the guide mechanism;

[0008] A fixing clamping mechanism is provided on the right side of the upper surface of the guide mechanism;

[0009] Multiple drill rods are provided between the movable clamping mechanism and the fixed clamping mechanism;

[0010] The movable clamping mechanism includes a sliding seat, a guide rod 1 fixedly connected to the inner side of the sliding seat, a plurality of sliders 1 slidably mounted on the outer side of the guide rod 1, a guide box 1 fixedly connected to the top of the sliders 1, a guide rod 2 fixedly connected inside the guide box 1, and two clamping plates 1 slidably connected to the inner side of the guide rod 2.

[0011] The fixed clamping mechanism includes a fixed base, a guide rod three is fixedly connected to the inner side of the fixed base, a plurality of sliding blocks two are slidably connected to the outer side wall of the guide rod three, a guide box two is fixedly connected to the upper surface of the sliding blocks two, a bidirectional stud is rotatably connected to the inside of the guide box two through a rotating shaft, two clamping plates two are threadedly installed on the outer side wall of the bidirectional stud, and a connecting rod is slidably connected to the inside of the two bidirectional studs that are opposite to each other. The front and rear surfaces of the guide box two located at the center of the fixed base and located on the outer side walls of the two connecting rods are rotatably connected to gears through a rotating shaft, and the inner side of the gear is fixedly connected to the inner side of the connecting rod.

[0012] Furthermore, the bottom of the first slider located in the middle of the sliding seat is fixedly connected to the inner side of the sliding seat, and the bottom of the second slider located at the center of the fixed seat is fixedly connected to the inner side of the fixed seat.

[0013] Furthermore, the two front-to-back clamping plates one and the two front-to-back clamping plates two are engaged on the outside of the drill rod, and a baffle is fixedly connected to the outer wall of the drill rod on the right side of the clamping plate one.

[0014] Furthermore, a connecting sleeve is fixedly connected to the outer wall of the first clamping plate, and a connecting head is fixedly connected to the outer wall of the second clamping plate. A pull rod is fixedly connected to the left side of the connecting head and inside the connecting sleeve.

[0015] Furthermore, the orientation mechanism includes a base plate, with a fixing block 1 symmetrically fixedly connected to the front of the upper surface of the base plate, and a fixing block 2 symmetrically fixedly connected to the rear of the upper surface of the base plate. A bidirectional screw is rotatably connected between the two fixing blocks 1 via a rotating shaft, and a crossbar is fixedly connected between the two fixing blocks 2. A screw sleeve 1 is threadedly connected to the outer wall of the bidirectional screw, and a movable sleeve is slidably connected to the outer wall of the crossbar. A concave part 1 is fixedly connected to the top of both the screw sleeve 1 and the movable sleeve. An inclined support rod is rotatably connected to the inner side of the concave part 1 via a rotating shaft, and a concave part 2 is rotatably connected to the top of the inclined support rod via a rotating shaft. The tops of multiple concave parts 2 are jointly fixedly connected to a top plate, and multiple casters are fixedly connected to the lower surface of the base plate.

[0016] Furthermore, a concave component three is symmetrically fixedly connected to the left side of the upper surface of the top plate. A rotating head one is rotatably connected to the inner side of the concave component three via a rotating shaft. A concave component four is fixedly connected to the right side of the upper surface of the top plate. Two movable rods are rotatably connected to the inner side of the concave component four via a rotating shaft. A rotating head two is rotatably connected to the left side of the opposite side of the two movable rods via a rotating shaft. A transverse screw is threaded to the inner side of the rotating head two. Both ends of the transverse screw are rotatably connected to a bearing via a rotating shaft.

[0017] Furthermore, the guiding mechanism includes a mounting plate, the lower surface of which is fixedly connected to the top of the shaft seat and the top of the rotating head. The upper surface of the mounting plate has symmetrically arranged transverse grooves. Fixed plates are fixedly connected to both sides of the two transverse grooves on the lower surface of the mounting plate. A limit rod is fixedly connected between the two opposite fixed plates. A movable block is slidably connected to the outer wall of the limit rod. The top of the movable block is fixedly connected to the bottom of the sliding seat. The right side of the upper surface of the mounting plate is fixedly connected to the bottom of the fixed seat.

[0018] Furthermore, two shrink boxes are fixedly connected to the lower surface of the mounting plate between the two transverse grooves. A lifting plate is slidably connected inside the shrink box. A wedge-shaped pressure block is fixedly connected to the upper surface of the lifting plate. The top of the wedge-shaped pressure block extends through to the top of the mounting plate. A rack is fixedly connected to the right side of the upper surface of the lifting plate. The top of the rack extends through to the top of the mounting plate. The rack meshes with the gear. Multiple springs are fixedly connected between the shrink box and the lifting plate.

[0019] Furthermore, the slider one located at the center of the sliding seat is internally threaded with a transverse stud, and the outer wall of the transverse stud is slidably connected with a threaded sleeve two. The front and rear surfaces of the threaded sleeve two are fixedly connected with concave parts five. The inner side of the concave parts five is rotatably connected with two traction rods via a rotating shaft. The opposite sides of the two traction rods, which are away from the concave parts five, are rotatably connected with rotating heads three via a rotating shaft. The adjacent rotating heads three are fixedly connected to the opposite side of the slider one.

[0020] Furthermore, a counterweight is installed on the upper surface of the base plate by means of bolts, and lifting rings are symmetrically fixed to the front and rear surfaces of the base plate.

[0021] Beneficial effects: The device achieves height adjustment through the cooperation of a bidirectional screw and an inclined support rod. Compared with the traditional fixed bracket or simple bolt adjustment structure, it can not only be adjusted in real time according to the height of the working surface, but also ensures stable lifting and lowering through the auxiliary support of the crossbar and the moving sleeve during the adjustment process, effectively solving the problems of limited height adjustment range and low precision of the existing device.

[0022] By leveraging the synergistic action of the transverse screw, movable rod, and rotating head, the borehole inclination angle can be precisely set and locked according to the rock mass stress distribution and fracture orientation, avoiding the problem of anchor cable force direction not matching the design due to angle deviation. Simultaneously, the guiding mechanism, through the cooperation of the limiting rod and movable block, ensures that the drill rod always advances along the set angle, reducing safety hazards such as anchor cable slippage and rock mass instability caused by angle deviation, significantly improving the reliability and engineering safety of strongly unloaded rock mass reinforcement.

[0023] The device achieves automated control of drill rod clamping and releasing: during drilling, the contact between the sliding seat and the wedge-shaped pressure block drives the rack, gear and bidirectional stud to work together, so that the clamping plate clamps the drill rod synchronously, avoiding deviation or movement of the drill rod during drilling; after drilling is completed, the sliding seat disengages from the wedge-shaped pressure block to trigger the clamping plate to release automatically, without the need for manual adjustment of the clamping components, simplifying the operation process and reducing manual labor intensity;

[0024] With its multi-clamping component design, the device can simultaneously clamp and guide multiple drill rods, supporting simultaneous drilling of multiple holes. This makes it suitable for projects with large workloads and tight schedules. Furthermore, the use of components such as transverse studs and traction rods allows for flexible adjustment of the spacing between adjacent drill rods, adapting to the varying requirements of different projects for drilling spacing. This eliminates the need to replace specialized equipment, significantly improving the device's versatility and reusability, and reducing equipment investment costs. Attached Figure Description

[0025] Figure 1 This is a front view structural diagram of the present invention;

[0026] Figure 2This is a schematic diagram of the orientation mechanism of the present invention;

[0027] Figure 3 This is a schematic diagram of the connection structure of the guiding mechanism, the movable clamping mechanism and the fixed clamping mechanism of the present invention;

[0028] Figure 4 This is a schematic diagram of the connection structure of the shrink box, rack and gear of the present invention;

[0029] Figure 5 This is a side view of the movable clamping mechanism of the present invention.

[0030] Figure 6 This is a side view of the fixing and clamping mechanism of the present invention;

[0031] Figure 7 This is a schematic diagram of the connection structure between the drill rod and the baffle of the present invention.

[0032] In the diagram: 1. Orientation mechanism; 2. Guiding mechanism; 3. Movable clamping mechanism; 4. Fixed clamping mechanism; 5. Drill rod; 6. Baffle; 7. Connecting sleeve; 8. Connecting head; 9. Pulling rod; 10. Counterweight; 11. Lifting ring; 101. Base plate; 102. Fixed block one; 103. Fixed block two; 104. Bidirectional screw; 105. Crossbar; 106. Screw sleeve one; 107. Moving sleeve; 108. Concave part one; 109. Inclined support rod; 110. Concave part two; 111. Top plate; 112. Concave part three; 113. Rotating head one; 114. Concave part four; 115. Movable rod; 116. Rotating head two; 117. Transverse screw; 118. Bearing seat; 119. Caster wheel; 2 01. Mounting plate; 202. Horizontal groove; 203. Fixing plate; 204. Limiting rod; 205. Movable block; 206. Retractable box; 207. Lifting plate; 208. Wedge-shaped pressure block; 209. Rack; 210. Spring; 301. Sliding seat; 302. Guide rod one; 303. Sliding block one; 304. Guide box one; 305. Clamping plate one; 306. Horizontal stud; 307. Screw sleeve two; 308. Concave part five; 309. Traction rod; 310. Rotating head three; 311. Guide rod two; 401. Fixing seat; 402. Guide rod three; 403. Sliding block two; 404. Guide box two; 405. Bidirectional stud; 406. Clamping plate two; 407. Connecting rod; 408. Gear. Detailed Implementation

[0033] To make the technical solution of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] Example 1

[0035] like Figure 1 and Figure 2As shown, a borehole directional control device for prestressed anchor cable construction in strongly unloaded rock mass is provided, including a directional mechanism 1;

[0036] The orientation mechanism 1 includes a base plate 101. A fixing block 102 is symmetrically fixedly connected to the front of the upper surface of the base plate 101, and a fixing block 203 is symmetrically fixedly connected to the rear of the upper surface of the base plate 101. A bidirectional screw 104 is rotatably connected between the two fixing blocks 102 via a pivot. A crossbar 105 is fixedly connected between the two fixing blocks 203. A screw sleeve 106 is threadedly connected to the outer wall of the bidirectional screw 104. A movable sleeve 107 is slidably connected to the outer wall of the crossbar 105. A concave part 108 is fixedly connected to the top of both the screw sleeve 106 and the top of the movable sleeve 107. An inclined support rod 109 is rotatably connected to the inner side of the concave part 108 via a pivot. A concave part 2010 is rotatably connected to the top of the inclined support rod 109 via a pivot. A top plate 111 is fixedly connected to the top of multiple concave parts 2010. Multiple casters 119 are fixedly connected to the lower surface of the base plate 101.

[0037] A concave part three 112 is symmetrically fixedly connected to the left side of the upper surface of the top plate 111. A rotating head one 113 is rotatably connected to the inner side of the concave part three 112 via a rotating shaft. A concave part four 114 is fixedly connected to the right side of the upper surface of the top plate 111. Two movable rods 115 are rotatably connected to the inner side of the concave part four 114 via a rotating shaft. A rotating head two 116 is rotatably connected to the left side of the opposite side of the two movable rods 115 via a rotating shaft. A transverse screw 117 is threadedly connected to the inner side of the rotating head two 116. Both ends of the transverse screw 117 are rotatably connected to a bearing seat 118 via a rotating shaft.

[0038] The caster wheel 119 is a mobile wheel with its own brake pads. The caster wheel 119 on the lower surface of the base plate 101 pushes the whole device to the target working position for anchor cable construction in the strongly unloaded rock mass. After the initial positioning is completed, the caster wheel 119 is locked by the brake pads to prevent the device from shifting during construction.

[0039] According to the actual height requirements of the working surface, rotate the bidirectional screw 104 between the two fixed blocks 102. When the bidirectional screw 104 rotates, it drives the screw sleeve 106 on the outer wall to move along the screw axis. At the same time, the screw sleeve 106 pulls the bottom of the inclined support rod 109 to move synchronously through the concave part 108 at the top. The inclined support rod 109 deflects at an angle with the pivot at the concave part 108 as the fulcrum, thereby pushing the concave part 110 at the top and the top plate 111 to rise and fall. During this period, the movable sleeve 107 on the outside of the crossbar 105 slides synchronously with the screw sleeve 106 to ensure the stability of the lifting process of the inclined support rod 109 until the height of the top plate 111 matches the height of the working surface, and then stop rotating the bidirectional screw 104.

[0040] After determining the borehole inclination angle based on the rock mass stress distribution and fracture orientation, the transverse screw 117 inside the rotating head 2 116 is rotated. The transverse screw 117 drives the rotating head 2 116 to move left and right through the bearings 118 at both ends. When the rotating head 2 116 moves, it pulls the two movable rods 115 to rotate around the pivot at the concave part 4 114. At the same time, the rotating head 113 inside the concave part 3 112 on the left side rotates synchronously with the angle change of the mounting plate 201. The angle adjustment of the movable rod 115 drives the guide mechanism 2 and the clamping part above to deflect as a whole until the borehole angle reaches the design requirements. Then, the transverse screw 117 is stopped to complete the angle locking.

[0041] like Figure 1 , Figure 3 and Figure 4 As shown, a guide mechanism 2 is provided above the orientation mechanism 1;

[0042] The guide mechanism 2 includes a mounting plate 201. The lower surface of the mounting plate 201 is fixedly connected to the top of the shaft seat 118 and the top of the rotating head 113. The upper surface of the mounting plate 201 is symmetrically provided with transverse grooves 202. The lower surface of the mounting plate 201 is fixedly connected to two fixed pieces 203 on both sides of the two transverse grooves 202. The two fixed pieces 203 on the left and right sides are fixedly connected to a limit rod 204. The outer side wall of the limit rod 204 is slidably connected to a movable block 205. The top of the movable block 205 is fixedly connected to the bottom of the sliding seat 301. The right side of the upper surface of the mounting plate 201 is fixedly connected to the bottom of the fixed seat 401.

[0043] The lower surface of the mounting plate 201 is fixedly connected to two shrink boxes 206 between two transverse grooves 202. A lifting plate 207 is slidably connected inside the shrink box 206. A wedge-shaped pressure block 208 is fixedly connected to the upper surface of the lifting plate 207. The top of the wedge-shaped pressure block 208 extends through to the top of the mounting plate 201. A rack 209 is fixedly connected to the right side of the upper surface of the lifting plate 207. The top of the rack 209 extends through to the top of the mounting plate 201. The rack 209 is meshed with a gear 408. Multiple springs 210 are fixedly connected between the shrink box 206 and the lifting plate 207.

[0044] When the movable clamping mechanism 3 drives the drill rod 5 to drill into the rock mass, the external drive mechanism drives the drill rod 5 to rotate and advance into the rock mass. At the same time, the movable block 205 at the bottom of the sliding seat 301 slides synchronously along the axial direction of the limiting rod 204. The transverse groove 202 provides space for the movement of the sliding seat 301 and avoids interference from the mounting plate 201. Through the cooperation of the limiting rod 204 and the movable block 205, the drill rod 5 is always advanced along the angle direction set by the directional mechanism 1, preventing the drill rod 5 from deviating during the drilling process.

[0045] like Figure 1 ,like Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, a movable clamping mechanism 3 is provided on the left side of the upper surface of the guide mechanism 2;

[0046] The movable clamping mechanism 3 includes a sliding seat 301, a guide rod 302 fixedly connected to the inner side of the sliding seat 301, a plurality of sliders 303 slidably mounted on the outer side of the guide rod 302, a guide box 304 fixedly connected to the top of the sliders 303, a guide rod 311 fixedly connected to the inside of the guide box 304, and two clamping plates 305 slidably connected to the inner side of the guide rod 311.

[0047] The slider 303 located at the center of the sliding seat 301 is internally threaded with a transverse stud 306. The outer wall of the transverse stud 306 is slidably connected with a threaded sleeve 307. The front and rear surfaces of the threaded sleeve 307 are fixedly connected with concave parts 308. The inner side of the concave parts 308 is rotatably connected with two traction rods 309 via a rotating shaft. The opposite side of the two traction rods 309, which are away from the concave parts 308, is rotatably connected with a rotating head 310 via a rotating shaft. The adjacent rotating heads 310 and the opposite side of the slider 303 are fixedly connected.

[0048] A fixing clamping mechanism 4 is provided on the right side of the upper surface of the guide mechanism 2;

[0049] The fixed clamping mechanism 4 includes a fixed base 401, a guide rod 402 fixedly connected to the inner side of the fixed base 401, a plurality of sliding blocks 403 slidably connected to the outer side wall of the guide rod 402, a guide box 404 fixedly connected to the upper surface of the sliding block 403, a bidirectional stud 405 rotatably connected to the inside of the guide box 404 via a rotating shaft, two clamping plates 406 threadedly installed on the outer side wall of the bidirectional stud 405, a connecting rod 407 slidably connected to the inside of the two bidirectional studs 405 that are opposite to each other, and gears 408 rotatably connected to the front and rear surfaces of the guide box 404 located at the center of the fixed base 401 and on the outer side walls of the two connecting rods 407 via rotating shafts, and the inner side of the gears 408 is fixedly connected to the inner side of the connecting rods 407.

[0050] The bottom of slider 303, located in the middle of slider 301, is fixedly connected to the inner side of slider 301, and the bottom of slider 403, located in the center of fixed seat 401, is fixedly connected to the inner side of fixed seat 401.

[0051] A connecting sleeve 7 is fixedly connected to the outer wall of clamp 1 305, and a connecting head 8 is fixedly connected to the outer wall of clamp 2 406. A pull rod 9 is fixedly connected to the left side of the connecting head 8 and inside the connecting sleeve 7.

[0052] Initial state and drill rod placement: When the device is in the initial state before operation, the movable clamping mechanism 3 is located to the right of the wedge-shaped pressure block 208. At this time, the spring 210 inside the shrink box 206 is in a naturally extended state. The lifting plate 207, the top wedge-shaped pressure block 208, and the rack 209 are all in a high position. The rack 209 does not exert force on the gear 408. The bidirectional stud 405 in the fixed clamping mechanism 4 does not rotate. The clamping plate 305 of the movable clamping mechanism 3 and the clamping plate 406 of the fixed clamping mechanism 4 are both in a mutually separated open state. The distance between the adjacent guide boxes 304 and 404 is adapted to the length of the drill rod 5. The operator can directly and stably place the drill rod 5 between the front and rear opposite clamping plates 305 and 406 without additional adjustment of the clamping components, thus improving the drill rod installation efficiency.

[0053] Automatic clamping linkage during drilling: When the external drive mechanism drives the movable clamping mechanism 3 to move to the right along the limit rod 204, thereby pushing the drill rod 5 to drill into the rock mass, the left side wall of the sliding seat 301 first contacts the inclined surface of the wedge-shaped pressure block 208. As the sliding seat 301 continues to move to the right, it exerts downward pressure on the wedge-shaped pressure block 208, pushing the wedge-shaped pressure block 208 downward along the through hole of the mounting plate 201, thereby driving the lifting plate 207 to slide downward synchronously inside the shrink box 206. The spring 210 is compressed and stored by the lifting plate 207. When the lifting plate 207 moves downward, the rack 209 at its top moves downward synchronously. Since the rack 209 meshes with the gear 408 of the fixed clamping mechanism 4, the downward movement of the rack 209 drives the gear 408 to rotate around the axis of the connecting rod 407. When gear 408 rotates, it drives the connecting rod 407 fixed on the inner side to rotate synchronously. The connecting rod 407 then drives multiple bidirectional studs 405 that are opposite each other to rotate together. When the bidirectional studs 405 rotate, the two clamping plates 406 connected to the outer wall of the two clamping plates 406 slide towards each other along the inner wall of the guide box 404. At the same time, the connecting head 8 on the outer wall of the clamping plate 406 drives the pulling rod 9 to move synchronously inside the connecting sleeve 7. The pulling rod 9 generates a pulling force on the clamping plate 305, causing the two clamping plates 305 to slide towards each other along the guide rod 311. Finally, the clamping plates 305 and 406 that are opposite each other to clamp the outer wall of the drill rod 5 at the same time. By synchronously clamping the left and right ends of the drill rod 5, radial offset or axial movement of the drill rod 5 during high-speed rotation drilling is avoided, ensuring the drilling orientation accuracy.

[0054] Clamping status maintenance and drilling advance: During the process of the movable clamping mechanism 3 continuously moving to the right to push the drill rod 5 to drill, the sliding seat 301 always maintains contact with the top of the wedge-shaped pressure block 208 and continuously applies pressure, so that the wedge-shaped pressure block 208, the lifting plate 207 and the rack 209 are always in a low position, the gear 408 maintains a fixed angle, and the clamping force of the first clamping plate 305 and the second clamping plate 406 on the drill rod 5 remains stable, providing continuous and reliable support for the drill rod 5 until the drill rod 5 drills into the rock mass to reach the preset depth;

[0055] Automatic release and disassembly after drilling: Once the drill rod 5 has reached the required drilling depth, the external drive mechanism moves the movable clamping mechanism 3 to the right until the sliding seat 301 is completely disengaged from the top of the wedge-shaped pressure block 208. The limit on the top of the wedge-shaped pressure block 208 is released, and the spring 210 inside the shrink box 206 releases its elastic potential energy, pushing the lifting plate 207 to reset upwards. This, in turn, causes the wedge-shaped pressure block 208 and the rack 209 to move upwards synchronously. When the rack 209 moves upwards, it drives the gear 408 to rotate in the opposite direction. The gear 408, through the connecting rod 40... 7 drives the bidirectional stud 405 to rotate in the opposite direction, causing the two clamping plates 406 to slide away from each other along the guide box 404. At the same time, the connector 8 drives the pull rod 9 to pull the connecting sleeve 7 in the opposite direction, causing the clamping plate 305 to slide away from each other along the guide rod 311. The clamping plate 305 and the clamping plate 406 simultaneously disengage from the drill rod 5, releasing the clamping of the drill rod 5. At this time, the operator can easily move the entire device to the left, realizing the quick separation of the device from the drill rod 5 left inside the borehole, avoiding the cumbersome operation of manually adjusting the clamping parts when separating the traditional device.

[0056] Multi-drill rod adaptation and spacing adjustment: The device, by setting multiple sets of sliders 303, guide boxes 304 and clamping plates 305 in the movable clamping mechanism 3, and correspondingly setting multiple sets of sliders 403, guide boxes 404 and clamping plates 406 in the fixed clamping mechanism 4, can simultaneously clamp and guide multiple drill rods 5, meeting the needs of simultaneous multi-hole drilling in engineering. When the drilling spacing of adjacent drill rods 5 needs to be adjusted, the operator can rotate the transverse stud 306 at the center of the sliding seat 301. When the transverse stud 306 rotates, it drives the threaded sleeve 307 on the outer wall to move left and right along the stud axis. When the threaded sleeve 307 moves, it pulls the traction rod 309 through the concave parts 308 on the front and rear surfaces. The traction rod 309 rotates... The moving head 310 rotates as a fulcrum, thereby pushing the adjacent slider 303 to slide along the guide rod 302 in a direction that moves closer or further away from each other. The slider 303 drives the top guide box 304 to move synchronously. Since the drill rod 5 connects the movable clamping mechanism 3 and the fixed clamping mechanism 4, when the guide box 304 moves, it drives the guide box 404 of the fixed clamping mechanism 4 to move synchronously through the drill rod 5. The bidirectional stud 405 can slide along the outside of the connecting rod 407 without affecting the movement of the guide box 404. The sliding block 403 slides along the guide rod 302, ultimately realizing the synchronous adjustment of the distance between multiple sets of guide boxes 304 and guide box 404, adapting to the drilling construction needs of different distances, and improving the versatility of the device.

[0057] The left and right sides of the wedge-shaped pressure block 208 are inclined surfaces, which facilitates the movable clamping mechanism 3 to move and reset from right to left.

[0058] like Figure 1 and Figure 7 As shown, multiple drill rods 5 are arranged between the movable clamping mechanism 3 and the fixed clamping mechanism 4;

[0059] Two opposing clamping plates 305 and two opposing clamping plates 406 are engaged on the outside of the drill rod 5. A baffle 6 is fixedly connected to the outer side of the drill rod 5 and to the right of the clamping plate 305.

[0060] By abutting the baffle 6 against the clamping plate 305 on the movable clamping mechanism 3, the drill rod 5 can be pushed to the right along with the movable clamping mechanism 3.

[0061] like Figure 1 As shown, a counterweight 11 is installed on the upper surface of the base plate 101 by bolts, and lifting rings 12 are symmetrically fixed to the front and rear surfaces of the base plate 101.

[0062] The counterweight 11 is used to increase the overall weight and enhance stability, and the lifting ring 12 facilitates the hoisting of the device.

[0063] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A drilling directional control device for prestressed anchor cable construction in strongly unloaded rock mass, comprising a directional mechanism (1), characterized in that: A guide mechanism (2) is provided above the orientation mechanism (1); A movable clamping mechanism (3) is provided on the left side of the upper surface of the guide mechanism (2); A fixing clamping mechanism (4) is provided on the right side of the upper surface of the guide mechanism (2). Multiple drill rods (5) are provided between the movable clamping mechanism (3) and the fixed clamping mechanism (4); The movable clamping mechanism (3) includes a sliding seat (301), a guide rod (302) is fixedly connected to the inner side of the sliding seat (301), a plurality of sliders (303) are slidably installed on the outer side of the guide rod (302), a guide box (304) is fixedly connected to the top of the slider (303), a guide rod (311) is fixedly connected to the inside of the guide box (304), and two clamping plates (305) are slidably connected to the inner side of the guide rod (311). The fixed clamping mechanism (4) includes a fixed base (401), a guide rod three (402) is fixedly connected to the inner side of the fixed base (401), a plurality of sliding blocks two (403) are slidably connected to the outer side wall of the guide rod three (402), a guide box two (404) is fixedly connected to the upper surface of the sliding block two (403), a bidirectional stud (405) is rotatably connected to the inside of the guide box two (404) through a rotating shaft, two clamping plates two (406) are threadedly installed on the outer side wall of the bidirectional stud (405), and a connecting rod (407) is slidably connected to the inside of the two bidirectional studs (405) that are opposite to each other. The front and rear surfaces of the guide box two (404) located at the center of the fixed base (401) and the outer side walls of the two connecting rods (407) are rotatably connected to gears (408) through a rotating shaft, and the inner side of the gear (408) is fixedly connected to the inner side of the connecting rod (407).

2. The drilling directional control device for prestressed anchor cable construction in strongly unloaded rock mass according to claim 1, characterized in that: The bottom of the first slider (303) located in the middle of the sliding seat (301) is fixedly connected to the inner side of the sliding seat (301), and the bottom of the second slider (403) located at the center of the fixed seat (401) is fixedly connected to the inner side of the fixed seat (401).

3. The drilling directional control device for prestressed anchor cable construction in strongly unloaded rock mass according to claim 1, characterized in that: Two opposing clamping plates (305) and two opposing clamping plates (406) are engaged on the outside of the drill rod (5), and a baffle (6) is fixedly connected to the outer wall of the drill rod (5) and located on the right side of the clamping plate (305).

4. The drilling directional control device for prestressed anchor cable construction in strongly unloaded rock mass according to claim 1, characterized in that: A connecting sleeve (7) is fixedly connected to the outer wall of the first clamp (305), and a connector (8) is fixedly connected to the outer wall of the second clamp (406). A pull rod (9) is fixedly connected to the left side of the connector (8) and inside the connecting sleeve (7).

5. The drilling directional control device for prestressed anchor cable construction in strongly unloaded rock mass according to claim 1, characterized in that: The orientation mechanism (1) includes a base plate (101). A first fixing block (102) is symmetrically fixed to the front of the upper surface of the base plate (101), and a second fixing block (103) is symmetrically fixed to the rear of the upper surface of the base plate (101). A bidirectional screw (104) is rotatably connected between the two first fixing blocks (102) via a rotating shaft. A crossbar (105) is fixedly connected between the two second fixing blocks (103). A threaded sleeve (106) is threaded to the outer side wall of the bidirectional screw (104). The outer side of the crossbar (105)... A movable sleeve (107) is slidably connected to the side wall. A concave part (108) is fixedly connected to the top of the screw sleeve (106) and the top of the movable sleeve (107). An inclined support rod (109) is rotatably connected to the inner side of the concave part (108) via a rotating shaft. A concave part (110) is rotatably connected to the top of the inclined support rod (109) via a rotating shaft. A top plate (111) is fixedly connected to the top of multiple concave parts (110). Multiple casters (119) are fixedly connected to the lower surface of the bottom plate (101).

6. The drilling directional control device for prestressed anchor cable construction in strongly unloaded rock mass according to claim 5, characterized in that: The top plate (111) has a concave part three (112) fixedly connected symmetrically to the left side of the upper surface. The inner side of the concave part three (112) is rotatably connected to a rotating head one (113) via a rotating shaft. The top plate (111) has a concave part four (114) fixedly connected to the right side of the upper surface. The inner side of the concave part four (114) is rotatably connected to two movable rods (115) via a rotating shaft. The two movable rods (115) are rotatably connected to a rotating head two (116) on the left side of opposite sides via a rotating shaft. The inner side of the rotating head two (116) is threaded with a transverse screw (117). Both ends of the transverse screw (117) are rotatably connected to a bearing seat (118) via a rotating shaft.

7. The drilling directional control device for prestressed anchor cable construction in strongly unloaded rock mass according to claim 6, characterized in that: The guide mechanism (2) includes a mounting plate (201). The lower surface of the mounting plate (201) is fixedly connected to the top of the bearing seat (118) and the top of the rotating head (113). The upper surface of the mounting plate (201) is symmetrically provided with transverse grooves (202). The lower surface of the mounting plate (201) is fixedly connected to two sides of the two transverse grooves (202). The two opposite fixed plates (203) are fixedly connected to a limit rod (204). The outer wall of the limit rod (204) is slidably connected to a movable block (205). The top of the movable block (205) is fixedly connected to the bottom of the sliding seat (301). The right side of the upper surface of the mounting plate (201) is fixedly connected to the bottom of the fixed seat (401).

8. The drilling directional control device for prestressed anchor cable construction in strongly unloaded rock mass according to claim 7, characterized in that: The lower surface of the mounting plate (201) is fixedly connected to two shrink boxes (206) between the two transverse grooves (202). A lifting plate (207) is slidably connected inside the shrink box (206). A wedge-shaped pressure block (208) is fixedly connected to the upper surface of the lifting plate (207). The top of the wedge-shaped pressure block (208) extends through to the top of the mounting plate (201). A rack (209) is fixedly connected to the right side of the upper surface of the lifting plate (207). The top of the rack (209) extends through to the top of the mounting plate (201). The rack (209) meshes with the gear (408). Multiple springs (210) are fixedly connected between the shrink box (206) and the lifting plate (207).

9. The drilling directional control device for prestressed anchor cable construction in strongly unloaded rock mass according to claim 1, characterized in that: The slider 1 (303) located at the center of the sliding seat (301) is internally threaded with a transverse stud (306). The outer wall of the transverse stud (306) is slidably connected with a threaded sleeve 2 (307). The front and rear surfaces of the threaded sleeve 2 (307) are fixedly connected with concave parts 5 (308). The inner side of the concave parts 5 (308) is rotatably connected with two traction rods (309) via a rotating shaft. The opposite side of the two traction rods (309) that are opposite each other and away from the concave parts 5 (308) is rotatably connected with a rotating head 3 (310) via a rotating shaft. The adjacent rotating heads 3 (310) and the opposite side of the slider 1 (303) are fixedly connected.

10. The drilling directional control device for prestressed anchor cable construction in strongly unloaded rock mass according to claim 5, characterized in that: The upper surface of the base plate (101) is fitted with a counterweight (11) by bolts, and the front and rear surfaces of the base plate (101) are symmetrically fixed with lifting rings (12).

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