A device for reducing the installation of a bolt in a guardrail of a consumable

Abstract

The utility model relates to a kind of guardrail installation plant hole equipment of reducing consumables, mainly by punching mechanism, fixed mechanism and detection mechanism constitute modular system, detection mechanism uses annular pedestal to carry six independent probe units, each unit integration excitation coil, detection coil and phase analysis module, through the penetration of pulsed magnetic field concrete medium, detection coil captures the secondary magnetic field distortion signal generated by reinforcing bar, after micro-volt signal amplification, phase analysis module compares adjacent probe phase difference, real-time analysis reinforcing bar spatial coordinates and azimuth angle, this design breaks through the limitation of traditional single-point detection, utilizes annular array to synchronously obtain six radial cross-section magnetic field data, combined with the signal interference of concrete non-conductive characteristics is avoided, realize the millimeter level space avoidance of drill path and reinforcing bar distribution, compared with prior art, the device reduces reinforcing bar collision rate to 0.5% or less, drill loss reduces 60%, while improving drilling positioning efficiency reaches 40%, significantly optimizes construction cost.

Description

Technical Field

[0001] This utility model relates to the field of engineering drilling technology, and in particular to a guardrail installation rebar drilling device that reduces material consumption. Background Technology

[0002] Rebar anchoring, also known as rebar planting, is a connection technology in seismic reinforcement of building structures that uses structural adhesive to lock and hold the rebar in place. It is the best choice for structural rebar anchoring reinforcement and heavy load fastening applications. Chemical rebar anchoring refers to drilling holes in substrates such as concrete, walls, and rocks, then injecting high-strength anchoring adhesive, and then inserting rebar or profiles.

[0003] In the construction of drilling holes for rebar installation in concrete guardrails, existing equipment has significant technical defects: due to the lack of an effective detection mechanism for the position of the rebar, the drill bit is very likely to have a rigid collision with the rebar inside the concrete. This collision not only causes physical damage such as the drill bit edge to break and the rod to bend, but also causes abnormal wear of the equipment's transmission mechanism. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a guardrail installation rebar drilling device that reduces material consumption.

[0005] The present invention provides a guardrail installation rebar drilling and anchoring device that reduces material consumption, and adopts the following technical solution:

[0006] A guardrail installation rebar drilling device with reduced material consumption includes a drilling mechanism, a fixing mechanism, and a detection mechanism. The drilling mechanism is detachably connected to the fixing mechanism and is mounted on the fixing mechanism. The detection mechanism is located below the fixing mechanism. The detection mechanism specifically includes a detection plate, a pulse generator, a ring base, and independent probes. The ring base is mounted on the detection plate, and six sets of independent probes are mounted on the ring base. The six sets of independent probes are equidistantly distributed in a circle. Each set of independent probes includes an excitation coil, a detection coil, a phase analysis module, and a signal amplifier. The signal amplifier is mounted on the phase analysis module, and the excitation coil and the detection coil are both located on one side of the phase analysis module.

[0007] Preferably, each of the individual probes is inclined at a 40-degree angle outward within the annular base.

[0008] Preferably, an annular shielding layer is also provided inside the annular base. The annular shielding layer is located inside the independent probe, and one end of the annular shielding layer is inclined inward at 30 degrees.

[0009] Preferably, the annular shielding layer is made of copper mesh or aluminum foil.

[0010] Preferably, the fixing mechanism includes a connecting plate, a vacuum suction cup, a vacuum generating switch, a vacuum generator, and a guide groove. The vacuum suction cup is disposed on one side of the connecting plate, the vacuum generating switch is disposed on the other side of the connecting plate, the vacuum suction cup is connected to an external vacuum generator through the vacuum generating switch, the guide groove is fixedly attached to the connecting plate, the drilling mechanism is detachably connected to the guide groove, and the detection plate is fixedly attached to the bottom of the connecting plate.

[0011] Preferably, a horizontal moving assembly is provided in the guide groove. The horizontal moving assembly includes a motor, a lead screw, a slide rod, a nut sleeve, and a connecting pipe. The motor is located at the end of the guide groove away from the connecting plate. The output end of the motor is connected to the lead screw, and the other end of the lead screw is rotatably connected to the connecting plate. The slide rod is parallel to the lead screw and is located in the guide groove. The nut sleeve is located on the lead screw and slides with the slide rod. The connecting pipe is fixed to the bottom of the nut sleeve, and the drilling mechanism is detachably connected to the connecting pipe.

[0012] Preferably, the punching mechanism includes a punch and a sleeve, and the sleeve is detachably connected to the connecting pipe.

[0013] Preferably, it also includes a support assembly, which includes two sets of hinge seats and two telescopic tubes. The two sets of hinge seats are respectively disposed on the connecting plate and the top wall of the guide groove. The two telescopic tubes extend and retract with each other, and their ends are respectively hinged to the hinge seats. Fixers are provided on the telescopic tubes.

[0014] In summary, this utility model has at least one of the following beneficial technical effects:

[0015] 1. Six independent probes on the annular base form an omnidirectional scanning array at the center of the drill bit with equal angular spacing of 60°. Each probe unit adopts a dual-coil structure. The pulse generator produces a 10-100kHz pulsed magnetic field that penetrates the concrete medium. When there is a steel bar at the center of the annular base, the detection coil receives the secondary magnetic field signal generated by the steel bar. Compared with traditional single-point detection, the annular array can simultaneously acquire magnetic field data of six radial sections. The position of the steel bar is calculated by the phase analysis module. Concrete, as a non-conductive material, will not interfere with the signal, and the magnetic field distortion caused by the steel bar will be interpreted into spatial coordinates by the algorithm, thereby avoiding the drill bit hitting the steel bar in the concrete and achieving the purpose of reducing material consumption.

[0016] 2. The probe array is arranged with a 40-degree outward tilt to form a conical radiation field distribution, so that the electromagnetic fields emitted by each probe cross and cover the concrete medium. This angle design makes the magnetic field vector direction effectively orthogonal to the axial direction of the steel bar, enhances the eddy current effect, improves the positioning accuracy of the steel bar, and the complementary angle design of the shielding layer and the probe forms waveguide cutoff characteristics, suppresses high-frequency harmonic reflection, and effectively attenuates the electromagnetic interference generated by the rotation of the drill bit.

[0017] 3. The vacuum generator generates negative pressure through compressed air, and in conjunction with the vacuum generator switch, it enables rapid switching of the adsorption state. The vacuum suction cup forms a stable negative pressure zone during the adsorption stage, ensuring that the equipment is firmly fixed on the concrete surface. This rapid pressure switching mechanism significantly improves the efficiency of adsorption state switching compared to the bolt-locking operation of mechanical clamps.

[0018] 4. The motor starts and drives the lead screw to rotate, which causes the nut sleeve on the lead screw to move horizontally. The sliding fit between the nut sleeve and the slide rod adopts a pre-tightened slider design. Combined with the optimized connecting pipe structure of the counterweight, the center of mass of the drilling mechanism is kept coincident with the guide shaft during the movement, reducing the trajectory deviation caused by the moment of inertia and improving the stability of the drilling mechanism during drilling. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a guardrail installation rebar drilling and anchoring equipment that reduces material consumption.

[0020] Figure 2 This is a schematic diagram of the other side of a guardrail installation rebar drilling and anchoring equipment that reduces material consumption.

[0021] Figure 3 It is a schematic diagram used to illustrate the structure of the testing organization.

[0022] Figure 4 yes Figure 3 A sectional view along line AA.

[0023] Figure 5 This is a schematic diagram used to illustrate the probe structure.

[0024] Explanation of reference numerals in the attached drawings: 1. Drilling mechanism; 11. Drilling machine; 12. Sleeve; 2. Fixing mechanism; 21. Connecting plate; 22. Vacuum suction cup; 23. Vacuum generator switch; 24. Guide groove; 3. Detection mechanism; 31. Detection plate; 32. Pulse generator; 33. Annular base; 34. Independent probe; 341. Excitation coil; 342. Detection coil; 343. Phase analysis module; 344. Signal amplifier; 35. Annular shielding layer; 4. Horizontal movement assembly; 41. Motor; 42. Lead screw; 43. Slide rod; 44. Nut sleeve; 45. Connecting pipe; 5. Support assembly; 51. Hinge seat; 52. Telescopic tube; 53. Fixer. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] Furthermore, "several" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0028] This utility model discloses a guardrail installation rebar drilling device that reduces material consumption. (See reference...) Figure 1-5A rebar drilling device for guardrail installation that reduces material consumption includes a drilling mechanism 1, a fixing mechanism 2, and a detection mechanism 3. The drilling mechanism 1 is detachably connected to the fixing mechanism 2 and is mounted on the fixing mechanism 2. The detection mechanism 3 is located below the fixing mechanism 2. The detection mechanism 3 specifically includes a detection plate 31, a pulse generator 32, an annular base 33, and independent probes 34. The annular base 33 is mounted on the detection plate 31, and six sets of independent probes 34 are arranged on the annular base 33. The six sets of independent probes 34 are equidistantly distributed in a circle. Each set of independent probes 34 includes an excitation coil 341, a detection coil 342, a phase analysis module 343, and a signal amplifier 344. The phase analysis module 343 can compare the phase difference of adjacent probe signals to calculate the relative azimuth angle between the rebar and the probe. The signal amplifier 344 is mounted on the phase analysis module 343 to amplify the microvolt-level induced signal. To expand to a manageable range, both the excitation coil 341 and the detection coil 342 are positioned on one side of the phase analysis module 343. With this design, six independent probes 34 on the annular base 33 form an omnidirectional scanning array at the center of the drill bit with equal angular spacing of 60°. Each probe unit adopts a dual-coil structure. The pulse generator 32 generates a 10-100kHz pulsed magnetic field that penetrates the concrete medium to the excitation coil 341. When there is a reinforcing bar at the center of the annular base 33, the detection coil 342 receives the secondary magnetic field signal generated by the reinforcing bar. Compared with traditional single-point detection, the annular array can simultaneously acquire magnetic field data from six radial sections. The phase analysis module 343 calculates the position of the reinforcing bar. Concrete, as a non-conductive material, will not interfere with the signal, while the magnetic field distortion caused by the reinforcing bar will be interpreted into spatial coordinates by the algorithm, thereby avoiding the drill bit hitting the reinforcing bar in the concrete and achieving the goal of reducing material consumption.

[0029] Each independent probe 34 is set at a 40-degree outward tilt within an annular base 33. An annular shielding layer 35 is also set within the annular base 33. The annular shielding layer 35 is located inside the independent probe 34, and one end of the annular shielding layer 35 is tilted at a 30-degree inward tilt. The annular shielding layer 35 is made of copper mesh or aluminum foil. The probe array is arranged with a 40-degree outward tilt to form a conical radiation field distribution, so that the electromagnetic fields emitted by each probe cross-cover in the concrete medium. This angle design makes the magnetic field vector direction effectively orthogonal to the axial direction of the steel bar, enhances the eddy current effect, improves the positioning accuracy of the steel bar, and the complementary angle design of the shielding layer and the probe forms waveguide cutoff characteristics, suppresses high-frequency harmonic reflection, and effectively attenuates the electromagnetic interference generated by the rotation of the drill bit.

[0030] The fixing mechanism 2 includes a connecting plate 21, a vacuum suction cup 22, a vacuum generating switch 23, a vacuum generator, and a guide groove 24. The vacuum suction cup 22 is located on one side of the connecting plate 21, and the vacuum generating switch 23 is located on the other side of the connecting plate 21. The vacuum suction cup 22 is connected to an external vacuum generator through the vacuum generating switch 23. The vacuum generator generates negative pressure by compressing air, which, together with the vacuum generating switch 23, enables rapid switching of the adsorption state. During the adsorption stage, the vacuum suction cup 22 forms a stable negative pressure zone, ensuring that the equipment is firmly fixed on the concrete surface. This rapid pressure switching mechanism significantly improves the efficiency of adsorption state switching compared to the bolt-locking operation of mechanical clamps.

[0031] The guide groove 24 is fixedly connected to the connecting plate 21. The drilling mechanism 1 is detachably connected to the guide groove 24. The detection plate 31 is fixedly connected to the bottom of the connecting plate 21. A horizontal moving component 4 is provided in the guide groove 24. The horizontal moving component 4 includes a motor 41, a lead screw 42, a slide rod 43, a nut sleeve 44, and a connecting pipe 45. The motor 41 is located at the end of the guide groove 24 away from the connecting plate 21. The output end of the motor 41 is connected to the lead screw 42. The other end of the lead screw 42 is rotatably connected to the connecting plate 21. The slide rod 43 is parallel to the lead screw 42 and is located in the guide groove 24. The nut sleeve 44 is located on the lead screw 42 and is connected to the slide rod 45. The rod 43 is slidably engaged, and the connecting tube 45 is fixedly connected to the bottom of the nut sleeve 44. The drilling mechanism 1 is detachably connected to the connecting tube 45. The drilling mechanism 1 includes a drilling machine 11 and a sleeve 12. The sleeve 12 is detachably connected to the connecting tube 45. The motor 41 starts and drives the lead screw 42 to rotate, thereby causing the nut sleeve 44 on the lead screw 42 to move in the horizontal direction. The sliding engagement between the nut sleeve 44 and the sliding rod 43 adopts a pre-tightened slider design. Combined with the optimized structure of the connecting tube 45 with the counterweight, the drilling mechanism 1 keeps its center of mass coincident with the guide shaft during movement, reduces the trajectory deviation caused by the moment of inertia, and improves the stability of the drilling mechanism 1 during drilling.

[0032] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A guardrail installation rebar drilling and anchoring device that reduces material consumption, characterized in that: The device includes a drilling mechanism (1), a fixing mechanism (2), and a detection mechanism (3). The drilling mechanism (1) is detachably connected to the fixing mechanism (2). The drilling mechanism (1) is mounted on the fixing mechanism (2). The detection mechanism (3) is mounted below the fixing mechanism (2). The detection mechanism (3) specifically includes a detection plate (31), a pulse generator (32), an annular base (33), and independent probes (34). The annular base (33) is mounted on the detection plate (31). Six sets of independent probes (34) are mounted on the annular base (33). The six sets of independent probes (34) are equidistantly distributed in a circle. Each set of independent probes (34) includes an excitation coil (341), a detection coil (342), a phase analysis module (343), and a signal amplifier (344). The signal amplifier (344) is mounted on the phase analysis module (343). The excitation coil (341) and the detection coil (342) are both mounted on one side of the phase analysis module (343).

2. The guardrail installation rebar drilling equipment with reduced material consumption according to claim 1, characterized in that: Each of the individual probes (34) is arranged at an outward 40-degree angle within the annular base (33).

3. The guardrail installation rebar drilling equipment with reduced material consumption according to claim 2, characterized in that: An annular shielding layer (35) is also provided inside the annular base (33). The annular shielding layer (35) is located inside the independent probe (34), and one end of the annular shielding layer (35) is inclined inward at 30 degrees.

4. The guardrail installation rebar drilling equipment with reduced material consumption according to claim 3, characterized in that: The annular shielding layer (35) is made of copper mesh or aluminum foil.

5. A guardrail installation rebar drilling device for reducing material consumption according to any one of claims 1-4, characterized in that: The fixing mechanism (2) includes a connecting plate (21), a vacuum suction cup (22), a vacuum generating switch (23), a vacuum generator, and a guide groove (24). The vacuum suction cup (22) is located on one side of the connecting plate (21), and the vacuum generating switch (23) is located on the other side of the connecting plate (21). The vacuum suction cup (22) is connected to an external vacuum generator through the vacuum generating switch (23). The guide groove (24) is fixedly attached to the connecting plate (21). The drilling mechanism (1) is detachably connected to the guide groove (24). The detection plate (31) is fixedly attached to the bottom of the connecting plate (21).

6. The guardrail installation rebar drilling equipment with reduced material consumption according to claim 5, characterized in that: A horizontal moving component (4) is provided in the guide groove (24). The horizontal moving component (4) includes a motor (41), a lead screw (42), a slide rod (43), a nut sleeve (44), and a connecting pipe (45). The motor (41) is located at one end of the guide groove (24) away from the connecting plate (21). The output end of the motor (41) is connected to the lead screw (42). The other end of the lead screw (42) is rotatably connected to the connecting plate (21). The slide rod (43) is parallel to the lead screw (42) and is located in the guide groove (24). The nut sleeve (44) is located on the lead screw (42). The nut sleeve (44) is slidably engaged with the slide rod (43). The connecting pipe (45) is fixed to the bottom of the nut sleeve (44). The drilling mechanism (1) is detachably connected to the connecting pipe (45).

7. The guardrail installation rebar drilling equipment with reduced material consumption according to claim 6, characterized in that: The punching mechanism (1) includes a punch (11) and a sleeve (12), wherein the sleeve (12) is detachably connected to the connecting pipe (45).

8. A guardrail installation rebar drilling device for reducing material consumption according to claim 5, characterized in that: It also includes a support assembly (5), which includes two sets of hinge seats (51) and two telescopic tubes (52). The two sets of hinge seats (51) are respectively disposed on the connecting plate (21) and the top wall of the guide groove (24). The two telescopic tubes (52) are mutually telescopically connected and their ends are respectively hinged to the hinge seats (51). A retainer (53) is provided on the telescopic tubes (52).

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