A pull-type advanced small catheter positioning device

Abstract

This utility model belongs to the field of tunnel pre-support construction technology, specifically relating to a tie-type pre-support small guide pipe positioning device. It includes a positioning device body, comprising a tie plate, a side plate, a locking groove, and a limiting bolt. The top of the side plate is fixedly connected to one side of the tie plate, and the other side of the tie plate is rotatably connected to the locking groove. The locking groove is used to engage with one edge of the flange of the top of the I-beam after being rotated to be parallel to the tie plate. A first guide hole is provided on the side plate, which, together with a second guide hole on the web of the I-beam, fixes the drilling angle of the drill rod. The limiting bolt passes through the part of the side plate above the first guide hole and is screwed in after the locking groove engages with one edge of the flange of the top of the I-beam to fix the positioning device body to the I-beam. This device assists the drill rod in drilling along a specified direction to achieve drilling angle control, making it more suitable for use in confined spaces and allowing for quick disassembly.

Description

Technical Field

[0001] This utility model belongs to the field of tunnel pre-support construction technology, specifically involving a counter-pull type pre-support small guide pipe positioning device, which is suitable for assisting drill rod drilling operations in narrow spaces to achieve drilling angle control, and has the characteristics of quick disassembly. Background Technology

[0002] In tunnel construction, pre-installed guide pipes are a crucial measure to ensure support quality, and their installation angle requires precise control. If the installation angle does not meet the requirements, the support effect will be significantly reduced. However, on-site workers often rely on experience and intuition for control during the installation process, which is highly subjective and makes angle control difficult. Using string lines for control is inefficient and ineffective. Therefore, it is necessary to develop a tool that quickly helps workers determine the standard installation angle, eliminating errors caused by human factors, thereby improving the control quality of the pre-installed guide pipe's external angle and ensuring that the pre-installed guide pipe achieves its maximum effect.

[0003] Utility model patent application number 202223091141.8 provides a tunnel pre-conduit pipe fixing device. In use, the device involves first inserting one edge of the tunnel's initial support I-beam into a slot, then aligning the fixing hole with the pipe hole, and finally tightening the fixing bolt. The end of the fixing bolt abuts against one side of the tunnel's initial support I-beam, thus fixing the device body to the tunnel's initial support I-beam. The drill rod is then passed through the fixing hole and the pipe hole, effectively assisting in drilling and ensuring the smooth delivery of the pre-conduit pipe. However, the aforementioned pre-conduit pipe fixing device is inconvenient to assemble and disassemble, and requires sufficient space between it and the working face or other parts of the tunnel for disassembly, making it unsuitable for use in confined spaces. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned problems in the existing technology by providing a pull-type advanced small conduit positioning device that is quick to assemble and disassemble and is more suitable for use in confined spaces.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A counter-pull type advanced small guide pipe positioning device includes a positioning device body, which includes a counter-pull buckle plate, a side plate, a buckle groove, and a limiting bolt. The top of the side plate is fixedly connected to one side of the counter-pull buckle plate, and the other side of the counter-pull buckle plate is rotatably connected to the buckle groove. The buckle groove is used to engage with one edge of the flange of the top of the I-beam after being rotated to be parallel to the counter-pull buckle plate. A first guide hole is provided on the side plate, which, together with a second guide hole provided on the web of the I-beam, is used to fix the drilling angle of the drill rod. The limiting bolt passes through the part of the side plate above the first guide hole and is used to screw in after the buckle groove engages with one edge of the flange of the top of the I-beam to fix the positioning device body to the I-beam.

[0007] The buckle groove includes a first horizontal plate, a first vertical plate, and a second horizontal plate. One side of the first horizontal plate is rotatably connected to the other side of the pull-tab plate, and the other side of the first horizontal plate is fixedly connected to the top of the first vertical plate. The bottom of the first vertical plate is fixedly connected to one side of the second horizontal plate. The buckle groove is used to engage with one edge of the top flange of the I-beam when the first horizontal plate is rotated to be parallel to the pull-tab plate.

[0008] The counter-pull type advanced small guide tube positioning device also includes a guide tube, one end of which passes through the first guide hole and the other end of which passes through the second guide hole. The guide tube is used to fix the drilling angle of the drill rod.

[0009] A through hole is provided on the side plate above the first guide hole. A nut is provided on the side of the through hole away from the buckle plate. One end of the limiting bolt passes through the nut and the through hole in sequence and extends to the outside of the through hole.

[0010] The limiting bolt includes a screw rod and a threaded rod. One end of the threaded rod is connected to the screw rod, and the other end of the threaded rod passes through a nut and a through hole in sequence and extends to the outside of the through hole.

[0011] The connection between the nut and the side of the through hole away from the buckle plate is by welding.

[0012] The positioning device body also includes a hinge, which includes a first leaf, a second leaf, and a pivot. One side of the first leaf is rotatably connected to one side of the second leaf via the pivot. The bottom of the other side of the first leaf is fixedly connected to the other side of the pull-out plate. The bottom of the other side of the second leaf is fixedly connected to one side of the first horizontal plate.

[0013] When the first horizontal plate is rotated to be parallel to the pull tab, one side of the first horizontal plate comes into contact with the other side of the pull tab.

[0014] The sum of the widths of the first horizontal plate and the tie plate is greater than the width of the flange at the top of the I-beam.

[0015] The vertical angle between the guide tube and the buckle plate is 75°.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. The positioning device body of the counter-pull type advanced small guide tube positioning device of this utility model includes a counter-pull buckle plate, a side plate, a buckle groove, and a limiting bolt. The top of the side plate is fixedly connected to one side of the counter-pull buckle plate, and the other side of the counter-pull buckle plate is rotatably connected to the buckle groove. A first guide hole is opened on the side plate, and the limiting bolt passes through the part of the side plate above the first guide hole. In use, firstly, the buckle groove is turned down to be parallel to the counter-pull buckle plate, then one edge of the wing plate at the top of the I-beam is inserted into the buckle groove, and then the limiting bolt is screwed in. The positioning device is then secured by the limiting bolt. The main body is fixed to the I-beam. After fixing, the drill rod is passed through the first guide hole and the second guide hole opened on the web of the I-beam. The first and second guide holes are used together to assist the drill rod in drilling along the specified direction, realizing the control of the pre-drilling angle of the small guide tube. The construction quality is improved through standardized operation. After drilling is completed, the device can be quickly removed by loosening the limit bolt and the upward buckle. The operation is simpler and faster. Compared with the traditional pre-drilling small guide tube fixing device, this device requires less space to disassemble and is more suitable for use in confined spaces.

[0018] 2. The present invention provides a pull-type advanced small guide tube positioning device with guide tubes inserted through the first guide hole and the second guide hole. The guide tubes are used to assist the drill rod in drilling, which can more accurately control the drilling angle. Attached Figure Description

[0019] Figure 1 This is the front view of the present invention.

[0020] Figure 2 This is a schematic diagram of the working process of this utility model.

[0021] Figure 3 This is a top view of the present invention.

[0022] Figure 4 This is a side view of the present invention.

[0023] In the above figure, the positioning device body 1, the pull plate 11, the side plate 12, the through hole 121, the nut 122, the buckle groove 13, the first horizontal plate 131, the first vertical plate 132, the second horizontal plate 133, the limit bolt 14, the screw rod 141, the screw rod 142, the hinge 15, the first blade 151, the second blade 152, the rotating shaft 153, the guide tube 2, the I-beam 3, the wing plate 31, the web plate 32, and the second guide hole 321. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings.

[0025] See Figure 1 , Figure 3 , Figure 4 A counter-pull type pre-conduit positioning device includes a positioning device body 1. The positioning device body 1 includes a counter-pull buckle plate 11, a side plate 12, a buckle groove 13, and a limiting bolt 14. The top of the side plate 12 is fixedly connected to one side of the counter-pull buckle plate 11, and the other side of the counter-pull buckle plate 11 is rotatably connected to the buckle groove 13. A first guide hole 121 is provided on the side plate 12, and the limiting bolt 14 passes through the part of the side plate 12 located above the first guide hole 121.

[0026] The working principle of the above-mentioned counter-pull type advanced small guide positioning device is as follows: First, the buckle groove 13 is flipped down to be parallel to the counter-pull buckle plate 11. Then, the I-beam 3 is pushed until one edge of its top flange 31 is inserted into the buckle groove 13. Then, the limiting bolt 14 is screwed in, so that the limiting bolt 14 and the buckle groove 6 form a counter-pull force on both sides of the I-beam 3, thereby fixing the positioning device body 1 to the I-beam 3. After fixing, the drill rod is inserted into the first guide hole 121 and the second guide hole 321 opened on the web plate 32 of the I-beam 3. The first guide hole 121 and the second guide hole 321 are used together to assist the drill rod in drilling along the specified direction, thereby achieving the purpose of controlling the angle of advanced small guide installation.

[0027] See Figure 2 In another preferred embodiment, the buckle groove 13 is configured to cooperate with the top wing plate 31 of the I-beam 3, specifically including a first horizontal plate 131, a first vertical plate 132, and a second horizontal plate 133. One side of the first horizontal plate 131 is rotatably connected to the other side of the pull buckle plate 11, the other side of the first horizontal plate 131 is fixedly connected to the top of the first vertical plate 132, and the bottom of the first vertical plate 132 is fixedly connected to one side of the second horizontal plate 133. The buckle groove 13 is used to engage with one edge of the top wing plate 31 of the I-beam 3 when the first horizontal plate 131 is rotated to be parallel to the pull buckle plate 11.

[0028] In another preferred embodiment, the pull-type advanced small guide pipe positioning device further includes a guide pipe 2, one end of which passes through the first guide hole 121 and the other end of which passes through the second guide hole 321; the guide pipe 2 is used to assist the drill rod in drilling, thereby controlling the drilling angle more precisely and maximizing the role of the advanced small guide pipe in reinforcing the surrounding rock.

[0029] In another preferred embodiment, a through hole 121 is provided on the side plate 12 above the first guide hole 121. A nut 122 is provided on the side of the through hole 121 away from the counter-latch plate 11. One end of the limiting bolt 14 passes through the nut 122 and the through hole 121 in sequence and extends to the outside of the through hole 121. By providing a nut 122 that is threadedly engaged with the limiting bolt 14, the fixing effect of the limiting bolt 14 on the positioning device body 1 and the I-beam 3 is ensured.

[0030] In another preferred embodiment, the limiting bolt 14 includes a screw rod 141 and a threaded rod 142. One end of the threaded rod 142 is connected to the screw rod 141, and the other end of the threaded rod 142 passes through the nut 122 and the through hole 121 in sequence and extends to the outside of the through hole 121. The screw rod 141 is made of a steel pipe with an outer diameter of 20 mm and a wall thickness of 2 mm as the main material and is welded to the limiting bolt 4. By rotating the screw rod 141 to screw in or out the threaded rod 142, the positioning device body 1 and the I-beam 3 can be fixed or loosened.

[0031] In another preferred embodiment, the connection between the nut 122 and the side of the through hole 121 away from the buckle plate 11 is made by welding.

[0032] In another preferred embodiment, the positioning device body 1 further includes a hinge 15, which includes a first blade 151, a second blade 152, and a rotating shaft 153. One side of the first blade 151 is rotatably connected to one side of the second blade 152 via the rotating shaft 153. The bottom of the other side of the first blade 151 is welded to the other side of the pull tab 11, and the bottom of the other side of the second blade 152 is welded to one side of the first horizontal plate 131.

[0033] In another preferred embodiment, to prevent the first horizontal plate 131 from continuing to rotate downwards after rotating to be parallel with the countertop plate 11, one side of the first horizontal plate 131 is arranged to contact the other side of the countertop plate 11 when it rotates to be parallel with the countertop plate 11. A 5mm thick steel plate is used as the main material for the countertop plate 11 and the buckle groove 13, and the corners of the buckle groove 13 are connected by welding.

[0034] In another preferred embodiment, in order to ensure that the flange 31 at the top of the I-beam 3 can be smoothly inserted into the buckle groove 13, the sum of the widths of the first horizontal plate 131 and the counter-pulling buckle plate 11 is greater than the width of the flange 31 at the top of the I-beam 3.

[0035] In another preferred embodiment, the guide tube 2 is fixed to the first guide hole 121 by welding. The outer diameter and wall thickness of the guide tube 2 are determined according to the actual construction requirements. For example, a steel pipe with an outer diameter of 50 mm and a wall thickness of 2 mm is used as the main material of the guide tube 3.

Claims

1. A pull-type pre-implantation catheter positioning device, comprising a positioning device body (1), characterized in that: The positioning device body (1) includes a pull-tab plate (11), a side plate (12), a buckle groove (13), and a limiting bolt (14). The top of the side plate (12) is fixedly connected to one side of the pull-tab plate (11), and the other side of the pull-tab plate (11) is rotatably connected to the buckle groove (13). The buckle groove (13) is used to engage with one edge of the wing plate (31) at the top of the I-beam (3) after being rotated to be parallel to the pull-tab plate (11). A first guide hole is provided on the plate (12). The first guide hole is used together with the second guide hole (321) provided on the web plate (32) of the I-beam (3) to fix the drilling angle of the drill rod. The limiting bolt (14) is inserted on the side plate (12) above the first guide hole. It is used to screw in after the groove (13) and the wing plate (31) at the top of the I-beam (3) are engaged, so as to fix the positioning device body (1) and the I-beam (3).

2. The counter-pull type advanced small catheter positioning device according to claim 1, characterized in that: The buckle groove (13) includes a first horizontal plate (131), a first vertical plate (132), and a second horizontal plate (133). One side of the first horizontal plate (131) is rotatably connected to the other side of the pull buckle plate (11). The other side of the first horizontal plate (131) is fixedly connected to the top of the first vertical plate (132). The bottom of the first vertical plate (132) is fixedly connected to one side of the second horizontal plate (133). The buckle groove (13) is used to engage with one edge of the top wing plate (31) of the I-beam (3) when the first horizontal plate (131) is rotated to be parallel to the pull buckle plate (11).

3. The counter-pull type advanced small catheter positioning device according to claim 2, characterized in that: The counter-pull type advanced small guide tube positioning device also includes a guide tube (2), one end of which is inserted through the first guide hole and the other end of which is inserted through the second guide hole (321). The guide tube (2) is used to fix the drilling angle of the drill rod.

4. A counter-pull type advanced small catheter positioning device according to any one of claims 1-3, characterized in that: A through hole (121) is provided on the side plate (12) above the first guide hole. A nut (122) is provided on the side of the through hole (121) away from the buckle plate (11). One end of the limiting bolt (14) passes through the nut (122) and the through hole (121) in sequence and extends to the outside of the through hole (121).

5. The counter-pull type advanced small catheter positioning device according to claim 4, characterized in that: The limiting bolt (14) includes a screw rod (141) and a screw rod (142). One end of the screw rod (142) is connected to the screw rod (141), and the other end of the screw rod (142) passes through the nut (122) and the through hole (121) in sequence and extends to the outside of the through hole (121).

6. The counter-pull type advanced small catheter positioning device according to claim 4, characterized in that: The connection between the nut (122) and the through hole (121) on the side away from the buckle plate (11) is by welding.

7. A counter-pull type advanced small catheter positioning device according to claim 2 or 3, characterized in that: The positioning device body (1) also includes a hinge (15), which includes a first blade (151), a second blade (152), and a rotating shaft (153). One side of the first blade (151) is rotatably connected to one side of the second blade (152) through the rotating shaft (153). The bottom of the other side of the first blade (151) is fixedly connected to the other side of the pull-out buckle plate (11). The bottom of the other side of the second blade (152) is fixedly connected to one side of the first horizontal plate (131).

8. A counter-pull type advanced small catheter positioning device according to claim 2 or 3, characterized in that: When the first horizontal plate (131) is rotated to be parallel to the pull tab (11), one side of the first horizontal plate (131) comes into contact with the other side of the pull tab (11).

9. A counter-pull type advanced small catheter positioning device according to claim 2 or 3, characterized in that: The sum of the widths of the first horizontal plate (131) and the tie plate (11) is greater than the width of the wing plate (31) at the top of the I-beam (3).

10. A counter-pull type advanced small catheter positioning device according to claim 3, characterized in that: The guide tube (2) is welded and fixed to the first guide hole.

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