An advanced small catheter guiding and positioning device

Abstract

The present invention discloses a guiding and positioning device for an advanced small conduit, comprising a guiding ring (6), characterized in that: the two ends of the guiding ring (6) are connected to a rotating rod (7), the rotating rod (7) is installed in a slide groove (16) on both sides of an outer frame, and the installation position can be adjusted along the slide groove (16); the angle of the guiding ring (6) relative to the outer frame can be adjusted by rotating the rotating rod (7). The present invention has a simple structure, an ingenious design, and is easy to operate. It solves the problem that the drilling of advanced support construction in the current small clearance and ultra-small clearance tunnel construction is easy to damage the existing close-range important structure, and the construction forming effect is poor. The small conduit is accurately guided to improve its construction quality.

Description

Technical Field

[0001] The invention patent relates to an advanced small conduit guiding and positioning device, which belongs to the technical field of tunnel advanced reinforcement construction. Background Art

[0002] With the large-scale construction of infrastructure projects in my country, a large number of small-clearance and ultra-small-clearance tunnels have emerged. During construction, there are often problems such as the damage of adjacent tunnel support linings during the construction of advanced support drilling, and the poor quality of construction. At the same time, in the construction of urban subways, important structures such as bridge pile foundations and important pipelines often appear in the tunnel crossing area. During their construction, there is a construction problem of how to avoid drilling damage to existing important structures in close proximity while ensuring the quality of tunnel advanced support. To solve the above problems, it is necessary to accurately guide and position the advanced support. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an advance small guide tube guiding and positioning device to solve the problem that the advance support construction drilling in the current small clearance and ultra-small clearance tunnel construction is easy to damage the existing close-range important structures and the construction forming effect is poor.

[0004] The technical solution of the present invention is: an advanced small catheter guiding and positioning device, including a guide ring, with rotating rods connected at both ends of the guide ring, and the rotating rods are installed in slide grooves on both sides of the outer frame, and the installation position can be adjusted along the slide grooves; the angle of the guide ring relative to the outer frame can be adjusted by rotating the rotating rod.

[0005] The outer frame is a U-shaped frame consisting of two side panels and a top panel, fixing bolts are installed on the top panel, and sliding grooves are provided on the two side panels.

[0006] A movable nut is installed at the end of the fixing bolt, and a clip is connected above the movable nut.

[0007] The clip is a plate with a U-shaped slot in the center of the top, and two side plates have U-shaped slots at the bottom.

[0008] A sliding block is installed in the sliding groove, and the width of the sliding block is the same as that of the sliding groove. One end of the rotating rod is matched with the mounting hole on the sliding block and a limiting structure is arranged at the end.

[0009] The slider has two structures: a left slider and a right slider. The left slider has a limiting convex portion on the outside, and the width of the limiting portion is greater than the width of the slide groove; the left half of the right slider cooperates with the slide groove, and the half extends out of the slide groove and installs the position adjustment component.

[0010] An angle adjustment bolt fixing plate is installed on the left slider, an angle adjustment bolt is installed on the angle adjustment bolt fixing plate, the end of the angle adjustment bolt is vertically connected to the slide bar, both ends of the slide bar are inserted into the angle adjustment slide grooves, and the two angle adjustment slide grooves are vertically installed on the rotating rod on the left.

[0011] The position adjustment assembly includes a position adjustment bolt installed on the right part of the right slider and a position adjustment fixing plate on the right side plate. The upper end of the position adjustment bolt is inserted into the through hole of the position adjustment fixing plate, and the height of the right slider is adjusted by the position adjustment bolt.

[0012] An angle measuring disk is installed on the right end of the right rotating rod, and an angle indicating line is arranged on the right side surface of the right sliding block.

[0013] The angle adjustment bolt and the position adjustment bolt are both hollow bolts. The outer sleeve with a nut and a thread is sleeved on the central fixed rod. The outer sleeve can rotate relative to the fixed rod. A limit ring is provided at the top of the fixed rod to limit the axial freedom of the outer sleeve.

[0014] The beneficial effects of the present invention are:

[0015] 1. The device has strong adaptability and can be used on different excavation methods and steel arches of different sizes. Compared with standardized guide devices, it can save device manufacturing time and material costs.

[0016] 2. The external insertion angle of the device can be adjusted accurately, and the angle only needs to be adjusted once when it is used for the first time or after the angle changes, avoiding the errors caused by repeated measurements in traditional construction.

[0017] 3. The device is quick and easy to install. After moving to the existing measuring point, just rotate the nut to tighten the clip. No auxiliary connection or fixation such as welding is required.

[0018] The invention has the advantages of simple structure, ingenious design and convenient operation, and solves the problems that the drilling of advanced support construction in the current small-clearance and ultra-small-clearance tunnel construction is easy to damage the existing important structures in close distance and the construction forming effect is poor, and the small guide tube is accurately guided to improve its construction quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention.

[0020] Figure 2 This is a schematic diagram of the structure after the two side panels are hidden.

[0021] Figure 3 This is a partial enlarged view of the angle adjustment component.

[0022] Figure 4 It is a structural diagram of a position adjusting bolt.

[0023] Figure 5 It is a schematic diagram of the installation of the device on the steel arch frame.

[0024] Figure 6 It is a schematic diagram of the installation of this device on the grid steel frame.

[0025] Description of reference numerals:

[0026] 1 clip, 2 movable nut, 3 fixing bolt, 4 top plate, 5 side plate, 6 guide ring, 7 rotating rod, 8 angle adjustment slot, 9 angle adjustment bolt, 10 slide bar, 11 angle measuring disk, 12 position adjustment bolt, 13 angle adjustment bolt fixing plate, 14 position adjustment fixing plate, 15 slider, 16 slot, 17 U-shaped slot, 18 angle indicator line. DETAILED DESCRIPTION

[0027] The leading small catheter guiding and positioning device in this embodiment includes a movable card, a U-shaped outer frame and an adjusting device.

[0028] The movable card consists of a clip 1, a movable nut 2 and a fixing bolt 3. The movable nut 2 of the movable card and the clip 1 can rotate freely. There is a U-shaped steel bar slot on the clip 1. The fixing bolt 3 is rigidly connected to the top plate 4. The height of the clip 1 can be adjusted by rotating the movable nut 2.

[0029] The U-shaped outer frame includes a top plate 4 and two left and right side plates 5. The top plate 4 is provided with a movable clamp, and the side plates 5 are provided with a slide groove 16 and a U-shaped clamp groove 17. The U-shaped clamp groove is used to cooperate with the steel bar. A slider is arranged in the slide groove 16.

[0030] The adjustment device includes a guide ring 6, a rotating rod 7, an angle adjustment component and a position adjustment component. Two rotating rods 7 are fixed on both sides of the guide ring 6; the rotating rod 7 and the slider in the slide slot 16 are movably connected, and the installation position can be adjusted up and down along the slide slot 16 by moving the slider. The slider has two structures, a left slider 1501 and a right slider 1502. The left slider 1501 has a limited convex portion on the outside, and the width of the limited portion is greater than the width of the slide slot 16; the left half of the right slider 1501 cooperates with the slide slot 16, and the half extends out of the slide slot and installs the position adjustment component.

[0031] The angle adjustment assembly is composed of an angle adjustment slot 8, an angle adjustment bolt 9, an angle adjustment bolt fixing plate 13 and a slide bar 10, wherein the front end of the angle adjustment bolt 9 is connected to the slide bar 10, and the two ends of the slide bar 10 are clamped in two angle adjustment slots 8, and the two angle adjustment slots 8 are vertically connected to the left rotation rod 7, the angle adjustment bolt 9 can rotate relative to the slide bar 10, and the angle adjustment bolt fixing plate 13 is fixed to the left slider 1501. An angle measuring disk 11 is installed at the right end of the right rotation rod 7, and an angle indicator line 18 is provided on the right side surface of the right slider 1501.

[0032] The position adjustment assembly consists of a right slider 1502, a position adjustment bolt 12 installed on the right part of the right slider 1502, and a position adjustment fixing plate 14 on the right side plate 5. The upper end of the position adjustment bolt 12 is inserted into the through hole of the position adjustment fixing plate 14, and the height of the right slider 1502 is adjusted by a nut.

[0033] The angle adjustment bolt 9 and the position adjustment bolt 12 are both combined bolt structures, consisting of a fixed rod 100 and an outer sleeve 200. The structure of the outer sleeve 200 is a bolt with a through hole dug out in the axial direction, which is sleeved on the fixed rod 100 and can rotate relative to the fixed rod. The end of the fixed rod 100 has a limit ring 300 to limit the axial movement of the outer sleeve. The fixed rod 100 is welded at its installation position (the central position of the slide bar 10 or the upper right surface of the right slide block 1502).

[0034] The installation structure of this positioning device when used for steel arch frame is as follows Figure 5 The lower end faces of the two side panels and the upper end faces of the two clips are pressed against the grooves of the steel arch frame. First, adjust the position of the positioning device on the steel arch frame, and then adjust the guide ring 6 to align with the circular hole at the current position through the position adjustment component and the angle adjustment component.

[0035] The installation structure of this positioning device when used for grid steel frame is as follows Figure 6 The U-shaped slots of the two side panels and the U-shaped slots of the two clips cooperate with the steel bars of the grid steel frame. First, adjust the position of the positioning device on the steel arch frame, and then adjust the guide ring 6 to the predetermined guide position through the position adjustment component and the angle adjustment component.

Claims

1. An advanced small catheter guiding and positioning device, comprising a guide ring (6), characterized in that: The two ends of the guide ring (6) are connected to the rotating rod (7), and the rotating rod (7) is installed in the slide grooves (16) on both sides of the outer frame, and the installation position can be adjusted along the slide grooves (16); the angle of the guide ring (6) relative to the outer frame can be adjusted by rotating the rotating rod (7), and the outer frame is a U-shaped frame composed of two side plates (5) and a top plate (4), and the top plate (4) is installed with a fixing bolt (3), and the two side plates (5) are provided with a slide groove (16); a slider is installed in the slide groove (16), and the width of the slider is the same as that of the slide groove (16), one end of the rotating rod (7) is matched with the installation hole on the slider (15) and a limiting structure is set at the end; the slider has two structures: a left slider (1501) and a right slider (1502), and the left slider (1501) has a limiting convex portion on the outer side, and the width of the limiting convex portion is greater than the width of the slide groove (16); the right slider ( The left half of the right slider (1501) cooperates with the slide groove (16), and the right half extends out of the slide groove and is installed with a position adjustment component. An angle adjustment bolt fixing plate (13) is installed on the left slider (1501), and an angle adjustment bolt (9) is installed on the angle adjustment bolt fixing plate (13). The end of the angle adjustment bolt (9) is vertically connected to the slide bar (10), and the two ends of the slide bar (10) are inserted into the angle adjustment slide grooves (8). The two angle adjustment slide grooves (8) are vertically installed on the rotating rod (7) on the left side; the position adjustment component includes a position adjustment bolt (12) installed on the right part of the right slider (1501) and a position adjustment fixing plate (14) on the right side plate (5), the upper end of the position adjustment bolt (12) is inserted into the through hole of the position adjustment fixing plate (14), and the height of the right slider (1501) is adjusted by the position adjustment bolt (12).

2. The advanced small catheter guiding and positioning device according to claim 1, characterized in that: The end of the fixing bolt (3) is mounted with a movable nut (2), and the upper portion of the movable nut (2) is connected with a clip (1).

3. The advanced small catheter guiding and positioning device according to claim 2, characterized in that: The clip (1) is a plate with a U-shaped slot at the center of the top, and the bottoms of the two side plates (5) are provided with U-shaped slots.

4. The advanced small catheter guiding and positioning device according to claim 3, characterized in that: An angle measuring disk (11) is installed at the right end of the right rotating rod (7), and an angle indicating line (18) is provided on the right side surface of the right sliding block (1501).

5. The advanced small catheter guiding and positioning device according to claim 4, characterized in that: The angle adjustment bolt (9) and the position adjustment bolt (12) are both hollow bolts. An outer sleeve (200) with a nut and a thread is sleeved on a central fixed rod (100). The outer sleeve (200) can rotate relative to the fixed rod (100). A limit ring (300) is provided at the top of the fixed rod (100) to limit the axial freedom of the outer sleeve (200).

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