A multifunctional anchor bolt installation tool for tunnel construction

Abstract

The utility model discloses a multifunctional anchor bolt installation tool for tunnel construction, which relates to the technical field of tunnel construction equipment. A multifunctional anchor bolt installation tool for tunnel construction includes a shell, a sleeve grouting mechanism and a driving mechanism, wherein the sleeve grouting mechanism includes a rotating sleeve, a clamping assembly and a grouting pipe, and the rotating sleeve cooperates with the clamping assembly to clamp and fix the anchor bolt nut; the driving mechanism can drive the rotating sleeve and the clamping assembly to rotate to tighten the anchor bolt nut; and the grouting pipe can be inserted into the inner side of the anchor bolt and perform grouting. Therefore, through the mutual cooperation between the sleeve grouting mechanism and the driving mechanism, only a single installation tool is needed to complete multiple construction processes at the same time, and the construction personnel can complete the entire installation process without frequently changing tools and equipment, which is not only conducive to improving the installation efficiency of hollow anchor bolts, but also conducive to reducing equipment costs.

Description

Technical Field

[0001] The utility model relates to the field of tunnel construction equipment, in particular to a multifunctional anchor rod installation tool for tunnel construction. Background Art

[0002] During tunnel construction, it is often necessary to drive hollow anchor rods into the rock wall. Hollow anchor rods are mainly used to reinforce the tunnel rock wall and provide system support to ensure that the rock wall is not easily collapsed and deformed during subsequent construction. Therefore, the installation of hollow anchor rods is an important part of tunnel construction.

[0003] First, use an anchor drill to drill a rock hole that meets the design requirements in the tunnel wall. After fully cleaning the crushed sand and gravel in the rock hole, directly insert the prepared hollow anchor into the rock hole. After the anchor is inserted into place, the construction workers manually pull outward and rotate the anchor rod counterclockwise to make the anchor head initially open and bite the rock wall and the anchor. Then one construction worker supports the anchor rod so that the hollow anchor can remain vertically inserted into the rock hole. Another construction worker uses an electric wrench to tighten the anchor nut counterclockwise. At this time, the anchor rod is twisted outward, the anchor head expands and is fully anchored to the hole wall deep in the hole. Finally, the construction workers use a grouting pump and a grouting gun to inject cement slurry or other anchoring agents from the tail of the anchor rod to the depths of the rock hole, so that the slurry body can fully fill the gap between the hollow anchor and the rock. After the slurry body is completely solidified, the anchor is tightly combined with the rock, and the installation of the hollow anchor is completed.

[0004] However, traditional anchor bolt installation tools have relatively simple functions and can usually only complete a single process. Construction workers have to frequently change tools and equipment to complete the entire installation process. The installation efficiency is low, which not only seriously affects the construction progress, but also increases the construction cost. Summary of the invention

[0005] In order to improve the installation efficiency of hollow grouting anchor rods during tunnel construction and reduce construction costs at the same time, the present application provides a multifunctional anchor rod installation tool for tunnel construction.

[0006] The present application provides a multifunctional anchor bolt installation tool for tunnel construction using the following technical solution:

[0007] A multifunctional anchor bolt installation tool for tunnel construction, comprising a housing, a sleeve grouting mechanism and a driving mechanism;

[0008] The sleeve grouting mechanism comprises a rotating sleeve, a clamping assembly and a grouting pipe, one end of the rotating sleeve is buried inside the shell and connected to the driving mechanism, the other end of the rotating sleeve extends toward the outside of the shell and is rotatably connected to the shell, the clamping assembly is coaxially arranged at one end of the rotating sleeve extending out of the shell, the clamping assembly and the inner side of the rotating sleeve are mutually connected to form an anchor groove, and the clamping assembly is used to fix and clamp the anchor nut on the rotating sleeve and stabilize the anchor rod body on the central axis of the anchor groove;

[0009] The grouting pipe is fixedly buried in the inner side of the shell, and a fixed bearing is sleeved on the outer circumference of one end of the grouting pipe. The outer side of the fixed bearing is connected to the inner side of the rotating sleeve. The end of the grouting pipe provided with the fixed bearing penetrates into the inner side of the rotating sleeve and is coaxially arranged with the rotating sleeve. The other end of the grouting pipe extends out of the shell in the opposite direction of the extension direction of the rotating sleeve. The end of the grouting pipe extending out of the shell is connected to an external grouting pump.

[0010] By adopting the above technical solution, the rotating sleeve and the clamping assembly cooperate with each other to clamp the anchor nut and rotate and tighten it, and the grouting pipe can be inserted into the inner side of the anchor rod body to achieve grouting while tightening. Therefore, through the cooperation between the sleeve grouting mechanism and the driving mechanism, only a single installation tool is needed to complete multiple construction processes at the same time, and the construction personnel can complete the entire installation process without frequent replacement of tools and equipment, which is not only conducive to improving the installation efficiency of the hollow anchor, but also conducive to reducing equipment costs.

[0011] Optionally, the clamping assembly includes a clamping sleeve, a clamping claw component, a sliding sleeve and a tightening member, the clamping sleeve includes a clamping portion and a connecting portion, the clamping claw component is arranged on the inner side of the clamping portion, the connecting portion is fixedly connected to the rotating sleeve, the sliding sleeve is slidably sleeved on the outer peripheral side of the clamping portion, the sliding sleeve can slide and squeeze the clamping claw component to clamp the clamping claw component inwardly, the tightening member is threadedly arranged on the outer peripheral side of the connecting portion, and one end of the tightening member close to the clamping portion abuts against the sliding sleeve and is used to push the sliding sleeve to slide along the clamping portion.

[0012] By adopting the above technical solution, the construction workers rotate the tightening piece and use the tightening piece to push the sleeve to slide, and the sleeve then squeezes the clamping claw component to clamp the anchor nut. The operation steps are simple and convenient, which is conducive to the construction workers to quickly clamp the anchor nut and improve construction efficiency.

[0013] Optionally, the clamping jaw component includes a connecting ring and a plurality of clamping jaws elastically arranged on the connecting ring, the plurality of clamping jaws are evenly distributed along the circumference of the connecting ring, an extrusion wedge is arranged on the outer side of the clamping jaw, the extrusion wedge is gradually inclined inward along the direction of the clamping portion toward the connecting portion, a wedge groove is opened on the circumferential side of the clamping portion, the extrusion wedge extends out of the clamping portion from the wedge groove, and the inner side of the sliding sleeve abuts against the extrusion wedge.

[0014] By adopting the above technical solution, when the construction workers rotate the tightening piece toward the clamping part, the tightening piece pushes the sliding sleeve toward the clamping part, and the sliding sleeve pushes the clamping claws inward along the inclined surface of the extrusion wedge block. At this time, the clamping claws clamp toward the central axis, thereby keeping the anchor rod body on the central axis of the anchor groove while clamping the anchor nut.

[0015] Optionally, the clamping jaws are provided in at least three groups.

[0016] By adopting the above technical solution, at least three groups of clamping jaws are provided to fully clamp the anchor nut in all directions, which is beneficial to improving the stability of the clamping assembly when clamping the anchor nut.

[0017] Optionally, a tension spring is further provided between the clamping portion and the clamping jaw, one end of the tension spring is connected to the inner side of the clamping portion, and the other end of the tension spring is connected to the outer side of the clamping jaw.

[0018] By adopting the above technical solution, the tension spring can pull the clamping jaw to maintain an open state, so that when the construction personnel rotate the tightening member away from the clamping part, the clamping jaw can be pulled by the tension spring and push the sliding sleeve to slide toward the connecting part by squeezing the wedge block, thereby automatically loosening the anchor nut.

[0019] Optionally, the driving mechanism includes a driving member and a transmission assembly, the driving member is arranged on the inner side of the shell, the transmission assembly includes a worm and a turbine, the worm is connected to the driving end of the driving member, the turbine is fixedly arranged on the outer peripheral side of the rotating sleeve, and the worm and the turbine are meshed with each other.

[0020] By adopting the above technical solution and utilizing the worm gear transmission, not only can it withstand greater torque and load and fully tighten the anchor nut so that the anchor is fully anchored on the rock wall, but it also has a compact structure and occupies little space, which is conducive to further reducing the overall size of the installation tool and making it more convenient for construction workers to hold and operate it.

[0021] Optionally, the shell is provided with a main handle and a secondary handle, the main handle is located at the top of the shell and extends vertically, and the secondary handle is provided on the side of the shell and extends horizontally.

[0022] By adopting the above technical solution, construction workers can fully hold the installation tool with both hands, which is conducive to keeping the installation tool stable during use.

[0023] Optionally, laser alignment devices are provided on both sides of the shell.

[0024] By adopting the above technical solution and using the laser alignment devices on both sides of the shell, construction workers can perform two-point alignment when performing the anchoring process. With the help of laser alignment, construction workers can promptly detect whether the anchor rod body is vertical, and can adjust the anchor rod body in time, which is beneficial to maintaining the verticality of the anchor rod.

[0025] In summary, the technical solution of this application has at least one of the following beneficial effects:

[0026] 1. Through the cooperation between the sleeve grouting mechanism and the driving mechanism, only a single installation tool is needed to complete multiple construction processes at the same time. Construction personnel can complete the entire installation process without frequent replacement of tools and equipment, which is not only conducive to improving the installation efficiency of hollow anchor rods, but also conducive to reducing equipment costs.

[0027] 2. Through the coordination of various parts in the clamping assembly, construction personnel only need to rotate the tightening piece to realize the clamping claws to clamp and fix the anchor nuts. The operation steps are simple and convenient, which is conducive to the construction personnel to quickly clamp the anchor nuts and improve the construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of a multifunctional anchor rod installation tool for tunnel construction in an embodiment of the present application.

[0029] Figure 2 This is a structural exploded view of a multifunctional anchor installation tool for tunnel construction in an embodiment of the present application, in which half of the shell has been hidden.

[0030] Figure 3 It is a top view of a multifunctional anchor rod installation tool for tunnel construction in an embodiment of the present application.

[0031] Figure 4 yes Figure 3 Interface cross-sectional view of AA in the figure.

[0032] Description of reference numerals:

[0033] 1. Shell; 11. Main handle; 12. Auxiliary handle; 13. Laser alignment device; 2. Sleeve grouting mechanism; 21. Rotating sleeve; 22. Clamping assembly; 221. Clamping sleeve; 2211. Clamping part; 22111. Adjusting groove; 2212. Connecting part; 222. Clamping claw part; 2221. Connecting ring; 2222. Clamping claw; 2223. Extrusion wedge; 223. Sliding sleeve; 224. Tightening part; 225. Tension spring; 23. Grouting pipe; 231. Fixed bearing; 24. Anchor groove; 3. Driving mechanism; 31. Driving part; 32. Transmission part; 321. Worm; 322. Turbine. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-4 This application is described in further detail.

[0035] The present application embodiment discloses a multifunctional anchor rod installation tool for tunnel construction. Figure 1 and Figure 2 A multifunctional anchor bolt installation tool for tunnel construction includes a shell 1, a sleeve grouting mechanism 2 and a driving mechanism 3, wherein the sleeve grouting mechanism 2 and the driving mechanism 3 are both arranged on the inner side of the shell 1, the sleeve grouting mechanism 2 is used to inject cement mortar into the inner side of the anchor bolt body while tightening the anchor bolt nut, and the driving mechanism 3 is used to provide a certain torque force and drive the sleeve grouting mechanism 2 to realize the function of tightening the anchor bolt nut, so that through the mutual cooperation between the sleeve grouting mechanism 2 and the driving mechanism 3, only a single installation tool is needed to complete multiple processes at the same time, and construction personnel can complete the entire installation process without frequently changing tools and equipment, which is not only conducive to improving the construction efficiency of installing hollow anchor bolts, but also conducive to reducing equipment costs.

[0036] Reference Figure 2 , Figure 3 and Figure 4The sleeve grouting mechanism 2 includes a rotating sleeve 21, a clamping assembly 22 and a grouting pipe 23. One end of the rotating sleeve 21 is buried in the inner side of the shell 1 and connected to the driving mechanism 3, and the driving mechanism 3 can drive the rotating sleeve 21 to rotate. The other end of the rotating sleeve 21 extends toward the outer side of the shell 1 and is rotatably connected to the shell 1. The clamping assembly 22 is fixedly arranged at one end of the rotating sleeve 21 extending out of the shell 1, and the clamping assembly 22 is coaxially arranged with the rotating sleeve 21. The inner sides of the clamping assembly 22 and the rotating sleeve 21 are mutually connected to form an anchor groove 24. The clamping assembly 22 is used to clamp the anchor nut and fix the anchor rod body on the central axis of the anchor groove 24. Therefore, when installing the anchor rod, the anchor rod body is inserted into the anchor rod groove 24, the clamping assembly 22 fixes and clamps the anchor rod nut, the driving mechanism 3 drives the rotating sleeve 21 to rotate, and the clamping assembly 22 tightens the anchor rod nut. At this time, the anchor rod body will be screwed out and gradually extend to the depth of the anchor rod groove 24, and the anchor head is fully anchored to the hole wall, thereby realizing the anchoring process of the anchor rod.

[0037] Reference Figure 2 The clamping assembly 22 includes a clamping sleeve 221, a clamping claw component 222, a sleeve 223 and a tightening member 224. The clamping sleeve 221 includes a clamping portion 2211 and a connecting portion 2212. The clamping claw component 222 is disposed on the inner side of the clamping portion 2211, and the connecting portion 2212 is fixedly connected to the rotating sleeve 21. The sleeve 223 is slidably sleeved on the outer side of the clamping portion 2211, and can slide and squeeze the clamping claw component 222 to clamp the clamping claw component 222 to the central axis of the clamping portion 2211. The tightening piece 224 is threadedly arranged on the outer peripheral side of the connecting portion 2212, and the tightening piece 224 can be threadedly rotated to slide along the extension direction of the clamping sleeve 221. The end of the tightening piece 224 close to the clamping portion 2211 abuts against the sliding sleeve 223, so that when the tightening piece 224 rotates, the tightening piece 224 can push the sliding sleeve 223 to slide along the extension direction of the clamping sleeve 221, so that the clamping claw part 222 clamps the anchor nut and fixes the anchor rod body on the central axis of the anchor groove 24.

[0038] Reference Figure 2Specifically, the clamping jaw component 222 includes a connecting ring 2221, a plurality of groups of clamping jaws 2222 and a tension spring 225, wherein the connecting ring 2221 is coaxially fixedly arranged on the inner side of the clamping portion 2211, and the plurality of groups of clamping jaws 2222 are evenly distributed along the circumference of the connecting ring 2221. In this embodiment, a total of three groups of clamping jaws 2222 are arranged. An extrusion wedge 2223 is arranged on the outer side of the clamping jaw 2222, and the extrusion wedge 2223 gradually tilts inward along the direction of the clamping portion 2211 toward the connecting portion 2212. A wedge groove is provided on the circumference of the clamping portion 2211, and the extrusion wedge 2223 extends out of the clamping portion 2211 from the wedge groove. The tension spring 225 is arranged on both sides of the clamping jaw 2222 and is located between the clamping jaw 2222 and the clamping portion 2211. Specifically, one end of the tension spring 225 is connected to the clamping jaw 2222, and the other end is connected to the clamping portion 2211.

[0039] Reference Figure 2 and Figure 4 The grouting pipe 23 is fixedly buried in the inner side of the shell 1, wherein a fixed bearing 231 is sleeved on the outer side of one end of the grouting pipe 23, and the outer ring of the fixed bearing 231 is tightly pressed against the inner side wall of the rotating sleeve 21. One end of the grouting pipe 23 provided with the fixed bearing 231 penetrates into the inner side of the rotating sleeve 21 and is coaxially arranged with the rotating sleeve 21. The other end of the grouting pipe 23 extends in the opposite direction along the extension direction of the rotating sleeve 21 and is used to connect with an external grouting pump. When the anchor rod is fixed on the central axis of the anchor rod groove 24 by the clamping assembly 22, the grouting pipe 23 can be inserted into the inner side of the anchor rod body, so that cement slurry or other anchoring agents can be directly injected from the tail of the anchor rod body through the grouting pipe 23 to realize the grouting process of the anchor rod.

[0040] Reference Figure 2 and Figure 4 The driving mechanism 3 includes a driving member 31 and a transmission assembly, wherein the driving member 31 can be a driving device capable of driving the rotating sleeve 21. In this embodiment, the driving member 31 is a driving motor, and specifically, the driving motor is disposed on the inner side of the housing 1. The transmission assembly includes a worm 321 and a turbine 322, wherein the worm 321 is connected to the driving end of the driving motor, and the turbine 322 is fixedly disposed on the outer peripheral side of the rotating sleeve 21, and the worm 321 and the turbine 322 are meshed with each other.

[0041] Reference Figure 1 and Figure 3 A main handle 11 and a secondary handle 12 are also provided on the outside of the shell 1. Specifically, the main handle 11 is provided at the top of the shell 1, and the secondary handle 12 is provided at one side of the shell 1, so that the construction workers can fully hold the installation tools with both hands, and it is more stable to use.

[0042] Reference Figure 1 and Figure 3In order to prevent the anchor rod from being offset or unable to be anchored perpendicular to the rock wall during the anchoring process, laser alignment devices 13 are also provided on both sides of the housing 1. The laser alignment device 13 can emit lasers from both sides of the housing 1 and can adjust the emission direction of the lasers, so that the construction personnel can align the two points by focusing the lasers on both sides to a point on the rock wall. Therefore, even if the anchor rod body is offset, the lasers on both sides will also be offset and cannot be focused on the same point, which is conducive to the construction personnel to discover and adjust in time to maintain the verticality of the anchor rod.

[0043] The implementation principle of a multifunctional anchor bolt installation tool for tunnel construction in the embodiment of the present application is as follows:

[0044] When it is necessary to install a hollow anchor on the rock wall, the anchor rod body is inserted into the anchor rod groove 24, and then the tightening member 224 is rotated so that the sliding sleeve 223 can squeeze the clamping claw 2222 to fully clamp and fix the anchor rod nut. At this time, the anchor rod body is on the central axis of the anchor rod groove 24. The laser alignment device 13 is turned on, so that the lasers emitted by the laser alignment devices 13 on both sides are focused on a point on the rock wall, and the anchor rod body and the rock wall are kept perpendicular to each other. Then the drive motor is started, and the drive motor drives the rotating sleeve 21 and the clamping assembly 22 to rotate through the transmission of the turbine 322 and the worm 321. At this time, the anchor rod nut is tightened, the anchor rod body is screwed out and gradually extends to the depth of the anchor rod groove 24, and the anchor head is fully anchored in the depth of the hole in the rock wall.

[0045] When the anchor rod body is screwed out and extends deep into the anchor rod groove 24, the grouting pipe 23 is inserted into the inner side of the anchor rod body along the central axis of the anchor rod groove 24, and the external grouting pump is started. Cement slurry or other anchoring agents are injected into the deep hole of the rock wall through the grouting pipe 23, so that the paddle body can fully fill the gap between the hollow anchor rod and the rock mass. After the paddle body is completely solidified, the installation of the hollow anchor rod is completed. During the whole process, the construction personnel do not need to frequently change tools and equipment, which is not only conducive to improving the installation efficiency of the hollow anchor rod, but also conducive to reducing equipment costs.

[0046] This specific implementation manner is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make non-creative modifications to the specific implementation manner as needed, but such modifications are protected by the patent law as long as they are within the scope of the claims of the present application.

Claims

1. A multifunctional anchor bolt installation tool for tunnel construction, characterized in that: It comprises a housing (1), a sleeve grouting mechanism (2) and a driving mechanism (3); The sleeve grouting mechanism (2) comprises a rotating sleeve (21), a clamping assembly (22) and a grouting pipe (23); one end of the rotating sleeve (21) is buried inside the shell (1) and connected to the driving mechanism (3); the other end of the rotating sleeve (21) extends toward the outside of the shell (1) and is rotatably connected to the shell (1); the clamping assembly (22) is coaxially arranged at one end of the rotating sleeve (21) extending out of the shell (1); the clamping assembly (22) and the inner side of the rotating sleeve (21) are mutually connected to form an anchor groove (24); the clamping assembly (22) is used to fix and clamp the anchor nut on the rotating sleeve (21); The grouting pipe (23) is fixedly buried inside the shell (1); a fixed bearing (231) is sleeved on the outer circumference of one end of the grouting pipe (23); the outer side of the fixed bearing (231) is connected to the inner side of the rotating sleeve (21); one end of the grouting pipe (23) provided with the fixed bearing (231) penetrates into the inner side of the rotating sleeve (21) and is coaxially arranged with the rotating sleeve (21); the other end of the grouting pipe (23) extends out of the shell (1) in the opposite direction of the extending direction of the rotating sleeve (21); and the end of the grouting pipe (23) extending out of the shell (1) is connected to an external grouting pump.

2. A multifunctional anchor bolt installation tool for tunnel construction according to claim 1, characterized in that: The clamping assembly (22) comprises a clamping sleeve (221), a clamping claw component (222), a sliding sleeve (223) and a tightening member (224); the clamping sleeve (221) comprises a clamping portion (2211) and a connecting portion (2212); the clamping claw component (222) is arranged on the inner side of the clamping portion (2211); the connecting portion (2212) is fixedly connected to the rotating sleeve (21); and the sliding sleeve (223) is a sliding sleeve. The sliding sleeve (223) is arranged on the outer peripheral side of the clamping portion (2211), and can slide and squeeze the clamping claw portion (222) to clamp the clamping claw portion (222) inwardly. The tightening member (224) is threadedly arranged on the outer peripheral side of the connecting portion (2212), and the end of the tightening member (224) abuts against the sliding sleeve (223) and is used to push the sliding sleeve (223) to slide along the clamping portion (2211).

3. A multifunctional anchor bolt installation tool for tunnel construction according to claim 2, characterized in that: The clamping jaw component (222) comprises a connecting ring (2221) and a plurality of clamping jaws (2222) elastically arranged on the connecting ring (2221), the plurality of clamping jaws (2222) being evenly distributed along the circumference of the connecting ring (2221), an extrusion wedge (2223) being arranged on the outer side of the clamping jaw (2222), the extrusion wedge (2223) being gradually inclined inwardly along the direction from the clamping portion (2211) toward the connecting portion (2212), a wedge groove being arranged on the circumferential side of the clamping portion (2211), the extrusion wedge (2223) extending out of the clamping portion (2211) from the wedge groove, and the inner side of the sliding sleeve (223) being in contact with the extrusion wedge (2223).

4. A multifunctional anchor bolt installation tool for tunnel construction according to claim 3, characterized in that: The clamping jaws (2222) are provided in at least three groups.

5. The multifunctional anchor bolt installation tool for tunnel construction according to claim 3, characterized in that: A tension spring (225) is also provided between the clamping portion (2211) and the clamping claw (2222), one end of the tension spring (225) being connected to the inner side of the clamping portion (2211), and the other end of the tension spring (225) being connected to the outer side of the clamping claw (2222).

6. The multifunctional anchor bolt installation tool for tunnel construction according to claim 1, characterized in that: The driving mechanism (3) comprises a driving member (31) and a transmission assembly, wherein the driving member (31) is arranged on the inner side of the housing (1), and the transmission assembly comprises a worm (321) and a turbine (322), wherein the worm (321) is connected to the driving end of the driving member (31), and the turbine (322) is fixedly arranged on the outer peripheral side of the rotating sleeve (21), and the worm (321) and the turbine (322) are meshed with each other.

7. The multifunctional anchor bolt installation tool for tunnel construction according to claim 1, characterized in that: The shell (1) is provided with a main handle (11) and a secondary handle (12); the main handle (11) is located at the top of the shell (1) and extends vertically, and the secondary handle (12) is provided at the side of the shell (1) and extends horizontally.

8. The multifunctional anchor bolt installation tool for tunnel construction according to claim 1, characterized in that: The housing (1) is also provided with a laser alignment device (13).

Images