Tunnel feet-lock bolt and anchor pipe driving angle fixing device

Abstract

The utility model provides a tunnel feet-lock bolt and anchor pipe setting angle fixing device which comprises a [-shaped frame, and stroke grooves are symmetrically formed in the two side walls of the [-shaped frame. The mounting fixing part comprises two groups of reverse fasteners arranged at the two ends of the opening of the n-shaped frame respectively and a fastener arranged on one side far away from the opening end of the n-shaped frame, and the mounting fixing part is used for fixing the n-shaped frame on the I-shaped steel body; the angle adjusting piece comprises two guide pipes rotationally arranged on the two sides of the [-shaped frame and limiting pieces arranged in the corresponding stroke grooves in a sliding mode and detachably connected with the corresponding guide pipes, the two guide pipes are used for adjusting the angle, and the two limiting pieces are used for fixing the corresponding guide pipes; through cooperation of a reverse fastener and a fastener in the mounting fixing part, the [-shaped frame is stably and reliably fixed to the I-shaped steel body, the situation that the punching quality is affected due to displacement caused by punching vibration during operation is avoided, meanwhile, through arrangement of the angle adjusting part, the angle of an anchor rod hole can be adjusted, and the punching quality is improved. And the guide pipe is adjusted to a proper angle according to requirements.

Description

Technical Field

[0001] This utility model relates to the field of tunnel construction technology, and in particular to a device for fixing the angle of tunnel anchor bolts and anchor pipes. Background Technology

[0002] Locking anchor bolts are anchor bolts driven vertically into the rock wall at the foot of the arch when tunnel excavation adopts the arch-then-wall excavation method. To ensure safety, they are driven into the rock wall before the next stage of construction excavation to prevent the arch from shrinking or falling. Locking anchor bolts are an important structure in tunnel construction, supporting the entire initial support system of the upper bench.

[0003] For example, Chinese utility model patent CN222045827U discloses a "locking anchor positioning device". The device includes a fixed frame sleeved on the arch foot, and two anchor positioning components are symmetrically arranged on both sides of the fixed frame. Each anchor positioning component includes a U-shaped guide tube with the opening direction facing upward. One end of the guide tube is hinged to the outer wall of the fixed frame, and the other end is rotatably connected to the outer wall of the fixed frame along the height direction of the fixed frame through a connector. The device can assist the operator in positioning the driving angle of the anchor to ensure the positioning accuracy of the locking anchor.

[0004] However, since the above-mentioned device is fixed by two bolts before use, the operation is complicated and the stability is poor. Unstable fixing will affect the drilling angle and cause deviation, resulting in a reduction in the anchoring quality of the anchor bolt. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a device for fixing the angle of tunnel anchor bolts, which solves the problem of reduced anchoring quality caused by inconsistent angles when drilling pre-drilled holes for anchor bolts.

[0006] According to an embodiment of this utility model, a tunnel anchor bolt installation angle fixing device includes a U-shaped frame with symmetrical travel grooves on both side walls; an installation fixing component including two sets of reverse fasteners respectively disposed on both sides of the opening end of the U-shaped frame and a fastener disposed on the side away from the opening end of the U-shaped frame, the installation fixing component being used to fix the U-shaped frame to the I-beam body; and an angle adjusting component including two guide tubes rotatably disposed on both sides of the U-shaped frame and a limiting component slidably disposed in the corresponding travel groove and detachably connected to the corresponding guide tube, the two guide tubes being used to adjust the angle and the two limiting components being used to fix the corresponding guide tube.

[0007] Compared with the prior art, this utility model has the following advantages: By cooperating with the reverse fastener and fastener in the installation fixing component, the C-shaped frame is stably and reliably fixed on the I-beam body, avoiding displacement due to drilling vibration during operation, which would affect the drilling quality. At the same time, by setting the angle adjustment component, the angle of the anchor bolt hole can be adjusted. The guide tube is adjusted to a suitable angle according to the requirements and then fixed on the C-shaped frame. The C-shaped frame is then fixed on the I-beam body. Then, the anchor bolt is driven into the tunnel through the guide tube. During the operation, the angle of the guide tube on the C-shaped frame remains unchanged, which can ensure that the angle of the anchor bolts driven into the tunnel in the same batch is consistent, effectively improving the anchoring quality of the anchor bolts.

[0008] Preferably, each reverse fastener includes two locking blocks and a limiting rod. The two sides of the opening end of the C-shaped frame are mirror-shaped with storage slots. Each locking block is rotatably set in the corresponding storage slot, and each locking block is equipped with a torsion spring.

[0009] Preferably, the C-shaped frame has countersunk holes on both sides, each countersunk hole passing through the corresponding storage groove, and each countersunk hole can be detachably installed with a limit rod, each limit rod abutting against the corresponding locking block.

[0010] Preferably, the fasteners include fastening bolts threaded onto the ends of the U-shaped frame.

[0011] Preferably, each limiting member includes a limiting bolt that is slidably disposed in the corresponding stroke groove, and a retainer that is detachably disposed on the corresponding limiting bolt, wherein each retainer is engaged on the corresponding guide tube.

[0012] Preferably, the ends of the two guide tubes furthest from the rotation point are connected by a connecting arm.

[0013] Preferably, each stroke groove has a scale line on one side.

[0014] Preferably, a top plate is provided at the end of the fastening bolt near the body of the I-beam.

[0015] Preferably, each guide tube is provided with a connecting seat, which is rotatably mounted on the C-shaped frame. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model.

[0017] Figure 2 This is an exploded structural diagram of an embodiment of the present invention.

[0018] Figure 3 This is a schematic diagram of the installation of the fastening bolts in an embodiment of this utility model.

[0019] Figure 4This is a three-dimensional structural diagram of the reverse fastener in an embodiment of this utility model.

[0020] In the above attached figures: 1. C-shaped frame; 100. I-beam body; 101. Stroke groove; 102. Scale line; 103. Storage groove; 105. Limiting rod; 106. Countersunk hole; 2. Guide tube; 201. Connecting seat; 202. Connecting arm; 203. Card seat; 204. Limiting bolt; 3. Fastening bolt; 301. Top plate; 4. Card block; 401. Torsion spring. Detailed Implementation

[0021] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0022] like Figures 1 to 4 As shown in the figure, this utility model embodiment proposes a tunnel anchor bolt anchor pipe installation angle fixing device, which includes a U-shaped frame 1 with symmetrical stroke grooves 101 on both side walls; an installation fixing component, including two sets of reverse fasteners respectively disposed on both sides of the opening end of the U-shaped frame 1 and a fastener disposed on the side away from the opening end of the U-shaped frame 1, the installation fixing component is used to fix the U-shaped frame 1 to the I-beam body 100; and an angle adjusting component, including two guide tubes 2 rotatably disposed on both sides of the U-shaped frame 1 and a limiting component slidably disposed in the corresponding stroke groove 101 and detachably connected to the corresponding guide tube 2, the two guide tubes 2 are used to adjust the angle, and the two limiting components are used to fix the corresponding guide tube 2.

[0023] The detailed working process of this embodiment is as follows: The travel groove 101 is arc-shaped, and the fastener can slide within the travel groove 101; through the cooperation of the reverse fastener in the mounting fastener and the fastener, the C-shaped frame 1 is stably and reliably fixed on the I-beam body 100, preventing displacement due to drilling vibration during operation and affecting the drilling quality. At the same time, the angle adjustment component can be used to adjust the angle of the anchor bolt hole. The guide tube 2 is adjusted to a suitable angle as needed and then fixed on the C-shaped frame 1. The C-shaped frame 1 is then fixed on the I-beam body 100. Then, the anchor bolt is driven into the tunnel through the guide tube 2. During the operation, the angle of the guide tube 2 on the C-shaped frame 1 remains unchanged, which can ensure that the angle of the anchor bolts driven into the tunnel in the same batch is consistent, effectively improving the anchoring quality of the anchor bolts.

[0024] like Figure 3 and Figure 4 As shown, each reverse fastener includes two locking blocks 4 and a limiting rod 105. The two sides of the opening end of the C-shaped frame 1 are mirror-shaped with storage slots 103. Each locking block 4 is rotatably set in the corresponding storage slot 103, and each locking block 4 is provided with a torsion spring 401.

[0025] like Figure 4As shown, countersunk holes 106 are provided on both sides of the C-shaped frame 1. Each countersunk hole 106 passes through the corresponding storage groove 103. A limit rod 105 can be detachably installed in each countersunk hole 106. Each limit rod 105 abuts against the corresponding locking block 4.

[0026] like Figure 3 As shown, the fasteners include fastening bolts 3 that are threaded onto the end of the U-shaped frame 1.

[0027] The detailed working process of this embodiment is as follows: Each card block 4 can be flipped back and forth in the storage groove 103 so that the card block 4 is submerged in the storage groove 103. At the same time, with the cooperation of the torsion spring 401 and the limiting rod 105, when the limiting rod 105 is inserted into the countersunk hole 106, the corresponding card block 4 will abut against the limiting rod 105 under the action of the torsion spring 401, thereby restricting the flipping direction of the card block 4.

[0028] In use, first rotate the locking block 4 into the storage slot 103, then insert the limiting rod 105 into the countersunk hole 106. After releasing, the limiting rod 105 will spring back under the force of the torsion spring 401 until it abuts against the limiting rod 106. Then, insert the I-shaped frame 1 from both sides of the I-beam body 100. When the locking block 4 contacts the I-beam body 100, push the locking block 4 back into the storage slot 103. When the locking block 4 passes the I-beam body 100, the locking block... 4 will rebound under the elastic force of the torsion spring 401 to abut against the limit rod 105, and then tighten the fastening bolt 3 so that the fastening bolt 3 presses against the H-beam body 100. The H-beam body 100 is fixed by clamping it between the fastening bolt 3 and the clip 4. When it needs to be removed, loosen the fastening bolt 3, and then directly pull the limit rod 105 out of the countersunk hole 106. Then the C-shaped frame 1 can be removed from the H-beam body 100.

[0029] like Figure 1 and Figure 2 As shown, each limiting component includes a limiting bolt 204 that is slidably disposed in the corresponding stroke groove 101, and a retainer 203 that is detachably disposed on the corresponding limiting bolt 204, wherein each retainer 203 is engaged on the corresponding guide tube 2.

[0030] The detailed working process of this embodiment is as follows: Under the action of the limiting bolt 204 and the card holder 203, the guide tube 2 can be fixed on the C-shaped frame 1. When in use, first loosen the limiting bolt 204 so that the limiting bolt 204 can move in the stroke groove 101. Then adjust the tilt angle of the guide tube 2 to the required position, and then tighten the limiting bolt 204 so that the card holder 203 tightly clamps the guide tube 2 on the C-shaped frame 1.

[0031] like Figure 2 As shown, the ends of the two guide tubes 2 furthest from the rotation point are connected by a connecting arm 202.

[0032] The detailed working process of this embodiment is as follows: With the connection arm 202 in place, the guide tubes 2 on both sides of the C-shaped frame 1 can rotate synchronously and maintain the same angle.

[0033] like Figure 2 As shown, each stroke groove 101 has a scale line 102 on one side.

[0034] The detailed working process of this embodiment is as follows: The function of the scale line 102 is to intuitively adjust the angle of the guide tube 2, which is convenient and quick.

[0035] like Figure 3 As shown, a top plate 301 is provided at one end of the fastening bolt 3 near the body 100 of the I-beam.

[0036] The detailed working process of this embodiment is as follows: the top plate 301 can increase the end force-bearing area of ​​the fastening bolt 3 and improve stability.

[0037] like Figure 2 As shown, each guide tube 2 is provided with a connecting seat 201, which is rotatably mounted on the C-shaped frame 1.

[0038] The detailed working process of this embodiment is as follows: the connecting seat 201 is set on the outer ring of the guide tube 2, forming a passage in the middle of the guide tube 2 to avoid interference.

[0039] The implementation principle of this application embodiment is as follows: In use, first loosen the limiting bolt 204 so that the limiting bolt 204 can move within the stroke groove 101. Then adjust the tilt angle of the guide tube 2 to the required position, and then tighten the limiting bolt 204 so that the clamping seat 203 tightly clamps the guide tube 2 onto the I-shaped frame 1. Then rotate the clamping block 4 into the receiving groove 103. Then insert the limiting rod 105 into the countersunk hole 106. After releasing, the limiting rod 105 rebounds under the elastic force of the torsion spring 401 and abuts against the limiting rod 106. Then insert the I-shaped frame 1 from both sides of the I-beam body 100. When the locking block 4 contacts the I-beam body 100, the locking block 4 is pushed back into the storage groove 103. When the locking block 4 passes the I-beam body 100, the locking block 4 will rebound under the elastic force of the torsion spring 401 to abut against the limit rod 105. Then tighten the fastening bolt 3 so that the fastening bolt 3 is pressed against the I-beam body 100. The I-beam body 100 is fixed by clamping it between the fastening bolt 3 and the locking block 4. When it needs to be removed, loosen the fastening bolt 3 and then directly pull the limit rod 105 out of the countersunk hole 106. Then the C-shaped frame 1 can be removed from the I-beam body 100.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A device for fixing the angle of anchor pipe installation for tunnel anchor bolts, characterized in that, include: The U-shaped frame (1) has symmetrical stroke grooves (101) on both side walls; The mounting fastener includes two sets of reverse fasteners respectively disposed on both sides of the opening end of the I-beam (1) and a fastener disposed on the side away from the opening end of the I-beam (1). The mounting fastener is used to fix the I-beam (1) onto the I-beam body (100). Angle adjustment component includes two guide tubes (2) rotatably disposed on both sides of the C-shaped frame (1) and a limiting component slidably disposed in the corresponding stroke groove (101) and detachably connected to the corresponding guide tube (2). The two guide tubes (2) are used to adjust the angle, and the two limiting components are used to fix the corresponding guide tube (2).

2. The tunnel anchor bolt and anchor pipe installation angle fixing device according to claim 1, characterized in that: Each of the reverse fasteners includes two locking blocks (4) and a limiting rod (105). The two sides of the opening end of the C-shaped frame (1) are mirror-shaped with storage slots (103). Each locking block (4) is rotatably set in the corresponding storage slot (103), and each locking block (4) is provided with a torsion spring (401).

3. The tunnel anchor bolt and anchor pipe installation angle fixing device according to claim 2, characterized in that: The C-shaped frame (1) has countersunk holes (106) on both sides. Each countersunk hole (106) passes through the corresponding storage groove (103). Each countersunk hole (106) can be detachably provided with a limiting rod (105). Each limiting rod (105) abuts against the corresponding locking block (4).

4. The tunnel anchor bolt and anchor pipe installation angle fixing device according to claim 1, characterized in that: The fasteners include fastening bolts (3) threaded to the end of the swivel frame (1).

5. The tunnel anchor bolt and anchor pipe installation angle fixing device according to claim 1, characterized in that: Each of the limiting components includes a limiting bolt (204) slidably disposed in the corresponding stroke groove (101) and a retainer (203) detachably disposed on the corresponding limiting bolt (204), wherein each retainer (203) is engaged on the corresponding guide tube (2).

6. The tunnel anchor bolt and anchor pipe installation angle fixing device according to claim 5, characterized in that: The ends of the two guide tubes (2) away from the rotation point are connected by a connecting arm (202).

7. The tunnel anchor bolt and anchor pipe installation angle fixing device according to claim 1, characterized in that: Each of the stroke grooves (101) has a scale line (102) on one side.

8. The tunnel anchor bolt and anchor pipe installation angle fixing device according to claim 4, characterized in that: The fastening bolt (3) is provided with a top plate (301) at one end near the I-beam body (100).

9. The tunnel anchor bolt and anchor pipe installation angle fixing device according to claim 1, characterized in that: Each of the guide tubes (2) is provided with a connecting seat (201), which is rotatably mounted on the U-shaped frame (1).

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