Drilling angle positioning controller for feet-lock bolt

Abstract

The utility model provides a foot-lock bolt drilling angle positioning controller, which relates to the technical field of foot-lock bolt drilling, and comprises a supporting seat, the cross section of a web plate of the supporting seat is U-shaped, the top end and the bottom end of the supporting seat are provided with supporting surfaces, and the web plate of the supporting seat is provided with a fixing hole; the positioning pipes are symmetrically arranged on the left side and the right side of the supporting seat web and are obliquely arranged relative to the horizontal plane; and the magnetic pedestal is matched with the fixing hole, and a step surface is arranged on the magnetic pedestal. According to the utility model, the drilling angle can be efficiently and quickly controlled without damaging a primary support structure, so that the construction safety is ensured; meanwhile, the structure is simple, manufacturing can be conducted on the construction site, and turnover and repeated use can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to lock foot anchor rod drilling technical field especially a lock foot anchor rod drilling angle positioning controller. BACKGROUND

[0002] In the field of tunnel engineering, as the key link to ensure the safety and stability of tunnel excavation, the construction quality and precision of initial support directly relate to the smooth progress of subsequent engineering and the durability of the overall structure of the tunnel. In particular, in the installation of steel arches and the drilling of lock foot anchor rods, the precision and standardization of construction technology are particularly important.

[0003] Currently, with the continuous expansion of tunnel construction scale and the increasing difficulty of construction, the traditional method of relying on human experience to control the drilling angle of lock foot anchor rods has been difficult to meet the high requirements of modern tunnel engineering on precision and safety. In the actual construction process, due to the influence of drilling vibration, the initial drilling bit is prone to slip downward, resulting in a large deviation in the drilling angle. This not only affects the installation position precision of the lock foot anchor rod, but also may cause uneven stress on the steel arch during the excavation of the lower guide pit, making it impossible to achieve the best stress state designed, and thus posing a potential threat to the safety and stability of the steel arch.

[0004] The utility model patent with publication number CN213016186U discloses a lock foot anchor rod drilling positioning device, which specifically is a lock foot anchor rod drilling positioning device. It includes an I-beam, a support seat, and a drill rod. The support seat is slidingly connected to the flange of the I-beam. The support seat includes a support plate that extends out of the support seat. The support plate is inclined downward. The drill rod is connected to the support plate. The support plate provides support for the drilling of the drill rod, ensuring the accuracy of the drilling angle. However, this disclosure can only perform drilling work on one side of the drill rod at a time. After completing the drilling work on one side of the I-beam, the bolts need to be re-disassembled, and the next drilling can only be performed after installation on the other side of the I-beam. The operation is cumbersome.

[0005] The invention patent with publication number CN114704305A discloses a tunnel initial support steel arch lock foot anchor rod positioning device. It includes two front baffles, two conduits, and two rear baffles. The two front baffles are connected by a hinge. The front ends of the two conduits pass through the two front baffles and are welded to them. The axis of the conduit and the surface of the front baffle form an angle consistent with the designed installation angle of the lock foot anchor rod. The rear ends of the two conduits pass through the two rear baffles and are welded to them. The two rear baffles are parallel to the two front baffles and have a certain distance between them. Two nuts are symmetrically welded to the outer surface of the two front baffles. Each nut is screwed with a fastening bolt that passes through the front baffle. Although this disclosure allows anchor rod drilling to be performed on both sides of the steel arch simultaneously, the method of fixing the anchor rod to the surface of the steel arch using a fastening bolt inevitably causes damage to the steel arch during drilling, thereby reducing the performance of the initial support structure. Utility model content

[0006] The utility model provides a lock foot anchor rod drilling angle positioning controller, which aims to provide a lock foot anchor rod drilling angle positioning device which is convenient to use and does not damage a steel arch.

[0007] The utility model provides the following technical scheme, realizes the above -mentioned purpose:

[0008] A lock foot anchor rod drilling angle positioning controller, comprising

[0009] Support seat, the web cross section of support seat is U type, and the top and bottom of support seat are provided with support surface, and the web of support seat is provided with fixed hole;

[0010] Positioning pipe, positioning pipe is symmetrically arranged on the left and right sides of support seat web, and is inclinedly arranged relative to the horizontal plane;

[0011] Magnetic pedestal, magnetic pedestal is matched with fixed hole, and the step surface is arranged on the magnetic pedestal.

[0012] Further, the positioning pipe is arranged at an angle of 45 to 60 degrees relative to the horizontal plane.

[0013] Further, the bottom end of the positioning pipe is rotatably connected to the support seat, and the top end of the positioning pipe is connected to each other by a steel pipe.

[0014] Further, the back side of the web of the support seat is provided with a positioning window.

[0015] Further, the inner diameter of the positioning pipe is not less than 5cm.

[0016] Further, the opening size of the web of the support seat is greater than or equal to 10cm.

[0017] Further, the magnetic force of the magnetic pedestal is not less than 100kg.

[0018] Further, the positioning window is provided with an angle ruler in the height direction.

[0019] Beneficial effects

[0020] Compared with the prior art, the utility model has the beneficial effects as follows:

[0021] The utility model is convenient to operate, can efficiently and quickly control the drilling angle, does not damage the primary support structure, ensures construction safety, and simultaneously has simple structure, can be made on the construction site, and can be repeatedly used. DRAWINGS

[0022] In order to make the technical field personnel better understand the utility model scheme, the following will be combined with the drawings in the embodiment of the utility model, the technical scheme in the embodiment of the utility model is described clearly and completely.

[0023] Figure 1 For the overall structure of the utility model Figure 1 ;

[0024] Figure 2 For the overall structure of the utility model Figure 2 ;

[0025] Figure 3 For the structure schematic view of embodiment 2 of the utility model;

[0026] Figure 4 For the use schematic view of embodiment 1 of the utility model;

[0027] Figure 5 For the use schematic view of embodiment 2 of the utility model;

[0028] Reference signs: 1-supporting seat;2-supporting surface;3-fixing hole;4-positioning tube;5-magnetic pedestal;6-positioning window. DETAILED DESCRIPTION

[0029] In order to make the technical field personnel better understand the utility model scheme, the following will be combined with the drawings in the embodiment of the utility model, the technical scheme in the embodiment of the utility model is described clearly and completely.

[0030] It should be noted that in the utility model: the terms "comprising" and "having" and any variations thereof are intended to cover inclusive rather than exclusive inclusion, for example, a process, method, system, product or apparatus that comprises a list of steps or units is not necessarily limited to those steps or units that are clearly listed, but can include other steps or units that are not clearly listed or inherent to such processes, methods, products or apparatuses; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "transverse", "longitudinal" and the like are based on the orientations or positional relationships shown in the drawings, and these terms are mainly used to better describe the utility model and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation; the terms "first", "second" and the like are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence; the terms "mounting", "setting", "providing", "connecting", "connecting", "sleeving" and the like should be interpreted broadly; for example, it can be fixedly connected, detachably connected, or integrally constructed; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication between two devices, elements or components. In addition, in addition to being used to indicate the orientation or positional relationship, some terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. For ordinary skilled persons in the art, the specific meanings of these terms in the utility model can be understood according to the specific circumstances.

[0031] Embodiment 1. A locking foot anchor rod drilling angle positioning controller, the structure is referred to Figure 1 And 2 The support seat 1, the web of the support seat 1 is in a U-shaped cross section, the top end and the bottom end of the support seat 1 are provided with support surfaces 2, and the web of the support seat 1 is provided with fixing holes 3;

[0032] The positioning pipe 4 is symmetrically arranged on the left and right sides of the web of the support seat 1 and is arranged inclined to the horizontal plane;

[0033] The magnetic pedestal 5 is arranged in the fixing hole 3 in a matched mode, and the magnetic pedestal 5 is provided with a stepped surface; the stepped surface arranged on the magnetic pedestal 5 facilitates the installation of the magnetic pedestal 5 in the fixing hole 3, and the magnetic pedestal 5 has a contact surface with the support seat 1, and when the magnetic pedestal 5 is turned on and adsorbed on the steel arch, the magnetic pedestal 5 has sufficient friction with the support seat 1 to keep the support seat 1 from shaking;

[0034] The positioning pipe 4 is arranged at an angle of 45-60 degrees with respect to the horizontal plane; the angle between the positioning pipe 4 and the horizontal plane is selected according to the actual situation of the project, and the angle between the lock foot anchor rod and the horizontal plane is 45-60 degrees according to the design specification;

[0035] The inner diameter of the positioning pipe 4 is not less than 5 cm;

[0036] The web opening size of the support seat 1 is greater than or equal to 10 cm; since the steel arch used in the initial support of the tunnel is made of H-shaped steel, and the size of the H-shaped steel used is not more than 10 cm wide, the web opening size of the support seat 1 is greater than or equal to 10 cm, so that the device can be applied to all initial support structures;

[0037] The magnetic pedestal 5 has a magnetic force of not less than 100 kg;

[0038] The use method of the utility model is as follows: Figure 4 When the steel arch construction is completed, the device is installed, the web opening of the support seat 1 is clamped into the steel arch, the support seat 1 is adjusted to the required height, the magnetic pedestal 5 is inserted into the fixing hole 3, the magnetic pedestal 5 is turned on to make the whole device adsorbed on the steel arch, at this time, the lock foot anchor rod drilling work can be carried out, after the drilling work is completed, the magnetic pedestal 5 is turned off, and the device can be removed, and the next steel arch continues the foregoing process to carry out the lock foot anchor rod drilling work.

[0039] Example 2. When example 1 is put into use, due to the influence of the project, the positioning pipe 4 is selected to be arranged at a fixed angle with respect to the horizontal plane, which causes the device to not necessarily meet the angle control requirements of the lock foot anchor rod in the next project after being used in the previous project, based on this, the scheme of example 1 is improved, as shown in Figure 3 The bottom end of the positioning pipe 4 is rotatably connected with the support seat 1, and the top end of the positioning pipe 4 is connected with each other through a steel pipe; the back side of the web of the support seat 1 is provided with a positioning window 6; the positioning window 6 is provided with an angle ruler in the height direction; the positioning pipe 4 and the support seat 1 are connected through a hinged support; when used, as shown in Figure 5 The support seat 1 is fixed through the magnetic pedestal 5 and the fixing hole 3, the positioning pipe 4 is lifted to the required angle through the angle ruler on the positioning window 6, another magnetic pedestal 5 is turned on and fixed in the positioning window 6, so that the positioning pipe 4 maintains a constant angle, and the lock foot anchor rod drilling work can be started.

[0040] Obviously, the above only describes a part of the embodiments of the present application, rather than all the embodiments. The above embodiments are not intended to limit the present application. For those skilled in the art, the present application can have various changes and variations. Any combination, modification, equivalent replacement, improvement and other embodiments made by those skilled in the art within the spirit and principle of the present application shall be within the protection scope of the present application.

Claims

1. A toe anchor hole angle positioning controller, characterized by: The utility model relates to a kind of magnetic force positioning device, including Support seat, the web of support seat is U-shaped in cross section, the top end and bottom end of support seat are provided with support surface, and fixing hole is set on the web of support seat; Positioning pipe, positioning pipe is symmetrically set in the left and right sides of support seat web, and it is inclined to be set relative to horizontal plane; Magnetic pedestal, magnetic pedestal is matched with fixed hole setting, and step surface is set on magnetic pedestal.

2. The kick-off angle positioner for a rock bolt according to claim 1, wherein: The positioning pipe is set to 45 ° to 60 ° angle relative to horizontal plane.

3. The kick-off angle positioner for a rock bolt according to claim 1, wherein: The bottom end of the positioning pipe is rotatably connected with the support seat, and the top end of the positioning pipe is connected with each other through a steel pipe.

4. The kick-off angle positioner of claim 1, wherein: The back side of the web of the support seat is provided with a positioning window.

5. The kick-off angle positioner of claim 1, wherein: The inner diameter of the positioning pipe is not less than 5 cm.

6. The kick-off angle positioner of claim 1, wherein: The opening size of the web of the support seat is greater than or equal to 10 cm.

7. The kick-off angle positioner of claim 1, wherein: The magnetic force of the magnetic pedestal is not less than 100 kg.

8. The kick-off angle positioner of claim 4, wherein: The positioning window is provided with a protractor along the height direction.

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