A water and electricity pipeline pre-burying belt positioning drilling device

Abstract

The application discloses a water and electricity pipeline pre-burying drilling device with positioning, which comprises a drilling mechanism, a telescopic joint, a chip removal assembly and a positioning assembly.

Description

Technical Field

[0001] This invention relates to the field of building construction, and in particular to a drilling device with positioning for pre-embedded water and electricity pipelines. Background Technology

[0002] In the construction of concrete structures in modern building projects, in order to meet the subsequent installation needs such as electrical wiring and water supply and drainage, it is usually necessary to pre-embed pipelines and drill holes on the formwork (bottom form) before concrete pouring.

[0003] In existing construction techniques, workers typically use handheld electric drills with extended bits to drill through the formwork from top to bottom after the formwork has been laid and some reinforcing bars have been tied. While the extended drill bit allows workers to stand during construction, reducing labor intensity to some extent, this technique has significant limitations in practice.

[0004] First, a dense steel mesh (such as bottom reinforcement and distribution reinforcement) is usually arranged under the formwork. Because the formwork obscures the bottom steel mesh, construction workers cannot accurately predict the distribution of reinforcement under the formwork. When an extended drill bit rotates at high speed and applies downward pressure, if the drill tip hits a high-hardness steel bar, it will generate a huge radial reaction force. This can not only cause the drill bit to chip or break, shortening the tool's lifespan, but also easily cause the drill to hit the operator's hand or vibrate violently, posing a serious construction safety hazard.

[0005] Secondly, the sawdust generated during drilling scatters onto the formwork surface and inside the reinforcing steel cage under gravity. Due to the dense spacing of the reinforcing steel and the presence of protective spacers, this sawdust is extremely difficult to remove completely using conventional purging methods. After concrete pouring, the sawdust remaining at the bottom can form inclusions, resulting in a less dense concrete structure, weakening the bond between the reinforcing steel and the concrete, and potentially becoming a weak point for water seepage later on, seriously affecting the durability and structural safety of the project.

[0006] How to solve the above-mentioned technical difficulties has become a problem to be tackled. Summary of the Invention

[0007] The purpose of this invention is to solve the problem that construction workers cannot accurately predict the distribution of reinforcing bars under the formwork, which leads to drill bit chipping and breakage, shortens tool life, and causes sawdust residue from drilling to affect the durability and structural safety of the project. Therefore, this invention proposes a drilling device with positioning for pre-embedded water and electricity pipelines.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A drilling device with positioning function for pre-embedded water and electricity pipelines, comprising,

[0010] A drilling mechanism, which includes a long drill bit for drilling;

[0011] The expansion joint is detachably installed on the drilling mechanism and extends and retracts along the axial direction of the long drill bit.

[0012] A chip removal assembly is fixedly installed at the bottom of the expansion joint, and the chip removal assembly includes fan blades that are coaxial with and detachably connected to the long drill bit;

[0013] The positioning component includes multiple long arm plates that are annularly fixed to the bottom of the chip removal component, and multiple positioning units are installed on the long arm plates;

[0014] The positioning components are arranged radially, and multiple positioning units on each long arm plate are arranged linearly and equally spaced to form a virtual coordinate system on the template surface that simulates the underlying steel reinforcement grid and to complete the positioning of the long drill bit.

[0015] The long drill bit drives the fan blades to rotate at high speed to clean up the debris generated during drilling of the template.

[0016] As a further description of the above technical solution: the drilling mechanism includes a hand drill;

[0017] The telescopic joint includes a fixed sleeve that is detachably connected to the housing of the electric drill. A movable sleeve is slidably mounted on the fixed sleeve. An air duct is coaxially fixed to the bottom of the movable sleeve. Multiple exhaust holes are provided at the top of the air duct.

[0018] The long arm plates are distributed in a ring at the bottom of the air duct.

[0019] As a further description of the above technical solution: the positioning unit includes a movable block and a display rod fixed to the top of the movable block. A strong magnet is fixed to the bottom of the movable block, and the display rod is fixed to the top of the movable block. The long arm plate has multiple through-holes. The movable block is adapted to the holes. A cover plate is detachably installed on the top of the long arm plate. The display rod passes through the cover plate. The cover plate and the movable block are fixedly connected by a tension spring.

[0020] When there is no steel bar under the strong magnet, the tension of the spring is greater than the sum of the weight of the strong magnet and the display rod; when there is a steel bar under the strong magnet, the magnetic attraction of the steel bar to the strong magnet and the sum of their weights are greater than the tension of the spring, thus driving the display rod to sink and retract.

[0021] As a further description of the above technical solution: an intercepting mesh plate is fixedly installed inside the air duct, and the intercepting mesh plate is placed below the fan blades.

[0022] As a further description of the above technical solution: the fan blade has multiple threaded holes in the radial direction, and the side wall of the air duct has multiple operating holes corresponding to the threaded holes.

[0023] As a further description of the above technical solution: the top of the fixed sleeve is fixed with an installation sleeve, and the installation sleeve is threaded with multiple locking bolts;

[0024] The outer wall of the fixed sleeve is symmetrically provided with strip-shaped sliding holes;

[0025] The top of the movable sleeve is symmetrically fixed with positioning rods placed inside the sliding hole.

[0026] As a further description of the above technical solution: the outer surface of the display pole is coated with a conspicuous coating.

[0027] As a further description of the above technical solution: the long arm plate is fixed to the bottom edge of the air duct.

[0028] As a further description of the above technical solution: the fan blades are rotatably connected to the air duct.

[0029] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0030] This device can transform the invisible distribution of reinforcing bars beneath the formwork into intuitive red visual signals. Construction workers can then more accurately avoid drilling through these reinforcing bar areas, eliminating safety hazards such as chipping and breakage of long drill bits due to impact with the reinforcing bars, and injuries from electric drills. This significantly extends the lifespan of consumables. Simultaneously, the negative pressure chip removal system, driven synchronously with the drilling power, achieves the effect of collecting sawdust as it is generated. An interceptor mesh effectively prevents debris from falling into the reinforcing bar framework, eliminating common quality defects in concrete pouring such as slag inclusions, and ensuring the structure's density, durability, and impermeability. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 This is a schematic diagram of the positioning component structure of the present invention;

[0033] Figure 3 For the present invention Figure 2 Explosion structure diagram;

[0034] Figure 4 This is a schematic diagram of the positioning unit structure of the present invention;

[0035] Figure 5 This is a schematic diagram of the duct structure of the present invention;

[0036] Figure 6 This is a schematic diagram of the fixed sleeve structure of the present invention;

[0037] Figure 7 This is a schematic diagram of the drilling mechanism structure of the present invention;

[0038] Figure 8 This is a front view of the chip removal component of the present invention;

[0039] Figure 9 This is a schematic diagram of the interlaced state of the long arm plate and the reinforcing bars in this invention;

[0040] Figure 10 This is a schematic diagram showing the overlap between the long arm plate and the reinforcing bar in this invention;

[0041] Figure 11 This is a schematic diagram of the long drill bit after it has been positioned according to the present invention.

[0042] Diagram caption:

[0043] 10. Drilling mechanism; 11. Electric drill; 12. Long drill bit;

[0044] 20. Expansion joint; 21. Fixed sleeve; 211. Sliding hole; 22. Movable sleeve; 221. Positioning rod; 23. Mounting sleeve; 231. Locking bolt;

[0045] 30. Chip removal assembly; 31. Air duct; 311. Exhaust vent; 312. Operating port; 32. Fan blade; 321. Threaded hole; 33. Mesh screen;

[0046] 40. Positioning assembly; 41. Long arm plate; 411. Movable hole; 42. Positioning unit; 421. Movable block; 422. Tension spring; 423. Strong magnet; 43. Display rod; 44. Cover plate;

[0047] 50. Formwork; 51. Reinforcing steel. Detailed Implementation

[0048] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0049] like Figure 1 - Figure 11 As shown, the present invention provides a drilling device with positioning for pre-embedded water and electricity pipelines, comprising:

[0050] The drilling mechanism 10 includes a long drill bit 12 for drilling, mainly used for drilling holes in the template 50 after positioning.

[0051] The telescopic joint 20 is detachably installed on the drilling mechanism 10, and the telescopic joint 20 extends and retracts along the axis of the long drill bit 12.

[0052] The chip removal assembly 30 is fixedly installed at the bottom of the expansion joint 20. The chip removal assembly 30 includes a fan blade 32 that is coaxial with and detachably connected to the long drill bit 12. The long drill bit 12 is placed inside the expansion joint 20. When the long drill bit 12 drills a hole in the template 50, the expansion joint 20 contracts, causing the chip removal assembly 30 to fit against the upper surface of the template 50 and cover the drilling position. At the same time, the long drill bit 12 is coaxially fixed with the fan blade 32. During the process of the long drill bit 12 rotating at high speed and drilling, the fan blade 32 rotates at high speed and generates an upward airflow, thereby collecting the wood chips generated at the bottom and reducing the amount of wood chips scattered on the surface of the template 50 or falling into the bottom steel reinforcement 51 skeleton through the drilling hole.

[0053] The positioning component 40 includes multiple long arm plates 41 that are fixed in annular shape to the bottom of the chip removal component 30. Multiple positioning units 42 are installed on the long arm plates 41 and are linearly distributed along the length of the long arm plates 41.

[0054] The positioning components 40 are radially distributed, and multiple positioning units 42 on each long arm plate 41 are arranged linearly at equal intervals to form a virtual coordinate system simulating the lower steel reinforcement grid on the surface of the template 50, determine the position of the long drill bit 12, and complete the positioning of the long drill bit 12.

[0055] The long drill bit 12 is powered on, and the long drill bit 12 drives the fan blade 32 to rotate at high speed to clean up the debris generated when drilling the template 50.

[0056] The drilling mechanism 10 includes a hand drill 11;

[0057] The expansion joint 20 includes a fixed sleeve 21 that is detachably connected to the housing of the electric drill 11. A movable sleeve 22 is slidably mounted on the fixed sleeve 21. The movable sleeve 22 slides along the axis inside the fixed sleeve 21 and can rotate with the rotation of the electric drill 11. A duct 31 is coaxially fixed to the bottom of the movable sleeve 22. A plurality of exhaust holes 311 are provided on the top of the duct 31 to ensure normal air flow.

[0058] The long arm plate 41 is distributed in a ring at the bottom of the air duct 31 and is fixedly connected to the air duct 31.

[0059] The positioning unit 42 includes a movable block 421 and a display rod 43. A strong magnet 423 is fixed to the bottom of the movable block 421, and the display rod 43 is fixed to the top of the movable block 421. The long arm plate 41 has multiple through-holes 411. The movable block 421 is adapted to the holes 411. A cover plate 44 is detachably installed on the top of the long arm plate 41. The display rod 43 passes through the cover plate 44. The cover plate 44 and the movable block 421 are fixedly connected by a tension spring 422. The movable block 421, the long arm plate 41 and the cover plate 44 are all made of non-magnetic metal or hard plastic.

[0060] The positioning components 40 are radially distributed, and multiple positioning units 42 on each long arm plate 41 are arranged linearly and equally spaced to form a virtual coordinate system simulating the underlying steel reinforcement grid on the surface of the template 50. Under normal conditions, the movable block 421 is subjected to an upward elastic force from the tension spring 422. Since the initial tension of the tension spring 422 is designed to overcome the sum of the weights of the movable block 421, the strong magnet 423, and the display rod 43, the movable block 421 will be in close contact with the lower surface of the cover plate 44. At this time, the top of the display rod 43, which is coated with a bright red paint, will extend to the maximum extent above the long arm plate 41, for example, by extending outwards, forming a "safety signal light".

[0061] When the construction worker moves the device on the surface of the formwork 50, the strong magnet 423 at the bottom of the long arm plate 41 will sense the change in the magnetic field below. Once it moves directly above the steel bar 51, a strong magnetic attraction will be generated between the strong magnet 423 and the iron steel bar 51. According to the mechanical balance analysis, the balance is broken, and the movable block 421 is forced to overcome the tension of the tension spring 422 and move downward, causing the display rod 43 to sink synchronously.

[0062] Because the long arm plates 41 are arranged in a ring-shaped radial pattern, and each arm has multiple display rods 43 arranged linearly, when the device covers the steel reinforcement 51 grid, the following three visual states will be formed:

[0063] State 1 (Touching a single rebar): If several indicator rods 43 on a certain long arm plate 41 descend simultaneously (e.g.) Figure 9 If we consider points C and D in the diagram, then these descending points can be used to visualize the straight trajectory of the single reinforcing bar 51 below.

[0064] State Two (Overlapping Alignment): When the construction worker rotates and translates the device so that all the display rods 43 on a certain long arm plate 41 are in the lowered state (e.g., Figure 10 As shown in the figure, this indicates that the long arm plate 41 completely overlaps with a certain steel bar 51 below, and drilling is strictly prohibited at this position.

[0065] State 3 (Avoidance Target Positioning): Construction workers use the fine-tuning device to find a "blank window." That is, when the indicator rods 43 of the long arm plates 41 in all four directions around the center landing point of the long drill bit 12 have descended (indicating that there is reinforcement 51 on all four sides), but only the indicator rods 43 closest to the center drilling point are all raised (e.g., ...). Figure 11 As shown in the figure, the center point is exactly at the center of the hole in the 51 mesh of steel reinforcement. At this time, the electric drill 11 is lowered to drill the hole, which can achieve 100% avoidance of the steel reinforcement.

[0066] At the same time, in this state, the lower edge of the strong magnet 423 is higher than the lower edge of the long arm plate 41. When the long arm plate 41 is in contact with the template 50, and the strong magnet 423 on the reinforcing bar 51 descends under the action of magnetic force and is in contact with the template 50, the tension spring 422 elastically stretches the display rod 43 to retract, and the top is coplanar with the cover plate 44, so that the position of the reinforcing bar 51 can be determined.

[0067] An intercepting mesh plate 33 is fixedly installed inside the duct 31. The intercepting mesh plate 33 is positioned below the fan blades 32. When the fan blades 32 rotate with the long drill bit 12, the airflow from bottom to top is caused by the fan blades 32. The wood chips at the bottom are intercepted and adsorbed on the lower surface of the intercepting mesh plate 33, while the gas is discharged through the exhaust hole 311 at the top. After drilling is completed, the wood chips can be collected and disposed of uniformly by gravity falling when the machine stops, or by using the downward blowing force generated by the reverse rotation of the electric drill 11 (reverse blowing), completely preventing the wood chips from falling into the interior of the steel reinforcement 51 frame.

[0068] The fan blade 32 has multiple threaded holes 321 radially, and the side wall of the air duct 31 has multiple operating holes 312 corresponding to the threaded holes 321. A screwdriver is inserted through the operating hole 312, and then the screw is threaded into the threaded hole 321. The fan blade 32 and the long drill bit 12 are disassembled and assembled by the screw, so as to facilitate the disassembly and assembly of the long drill bit 12.

[0069] The top of the fixed sleeve 21 is fixed with an installation sleeve 23. The installation sleeve 23 is adapted to the shape of the head shell of the electric drill 11. The installation sleeve 23 is fitted onto the electric drill 11, and multiple locking bolts 231 are threadedly connected to the installation sleeve 23 to facilitate the disassembly and assembly of the telescopic joint 20 and the drilling mechanism 10.

[0070] The outer wall of the fixed sleeve 21 is symmetrically provided with strip-shaped sliding holes 211;

[0071] A positioning rod 221 is fixed to the top of the movable sleeve 22, and the positioning rod 221 extends into the sliding hole 211. This structure ensures that the movable sleeve 22 can rotate synchronously with the electric drill 11 while extending and retracting along the axis of the long drill bit 12.

[0072] The outer surface of the display pole 43 is coated with a striking red paint to facilitate observation of the status of the display pole 43.

[0073] The long arm plate 41 is fixed to the bottom edge of the air duct 31. When the long arm plate 41 contacts the template 50, the bottom of the air duct 31 and the template 50 have reserved air inlets to form an air circulation loop.

[0074] The fan blade 32 and the air duct 31 are rotatably connected by a bearing. The inner ring of the bearing is coaxially fixed with the fan blade 32, and the outer ring is coaxially fixed with the air duct 31. The rotatable connection between the fan blade 32 and the air duct 31 prevents the fan blade 32 from moving around randomly in the space formed by the intercepting mesh plate 33 and the air duct 31, so as to facilitate the disassembly and assembly of the fan blade 32 and the long drill bit 12. It not only assists in centering the long drill bit 12, but also ensures that the fan blade 32 rotates at high speed with the drill bit.

[0075] Working principle: Since the bundled steel bars 51 form a rectangular frame structure when viewed from above, before construction, the entire device is first fitted onto the head of the electric drill 11 using the mounting sleeve 23 and fixed with locking bolts 231, making the device and drilling mechanism 10 a whole. The long drill bit 12 passes through the expansion joint 20 and extends to the bottom. Crucially, the fan blade 32 is coaxially fixed to the long drill bit 12 through the threaded hole 321. When the electric drill 11 starts, power is directly transmitted to the fan blade 32 through the long drill bit 12. Utilizing the bearing's support, not only is the stability of the fan blade 32 during high-speed rotation ensured, but the long drill bit 12 also helps to center itself during drilling, reducing radial runout.

[0076] The construction workers place the device on the surface of the template 50 to be drilled, at which point the long arm plate 41 of the positioning component 40 is attached to the template 50.

[0077] If there is a reinforcing bar 51 hidden beneath the template 50, the strong magnet 423 in the positioning unit 42 will be attracted by a strong magnetic force, overcoming the upward contraction force of the tension spring 422 and causing the movable block 421 to move downward. At this time, the red indicator rod 43, which was originally protruding above the cover plate 44, will descend and retract to a state flush with the cover plate 44. By observing the state of the multiple linearly distributed indicator rods 43 on the long arm plate 41, construction workers can intuitively "see" the direction of the underground reinforcing bar 51, and when it is in a position... Figure 9 In the current state, the display rods 43 at points A, B, C, and D are in the lowered state. Then, the long arm plate 41 is adjusted so that all the display rods 43 on the long arm plate 41 are in the lowered state. At this point, the long arm plate 41 coincides with the reinforcing bar 51 (e.g., ...). Figure 10 (As shown), then move horizontally so that each of the multiple long arm plates 41 has a display rod 43 descending, and the long drill bit 12 is placed between the multiple descending display rods 43, which indicates that there is no steel bar 51 in this area.

[0078] After positioning, press down on the electric drill 11. At this time, the fixed sleeve 21 moves downward along the movable sleeve 22, and the positioning rod 221 slides in the sliding hole 211 to ensure axial guidance and prevent circumferential torsion. As the expansion joint 20 retracts, the long drill bit 12 contacts the template 50 and begins drilling.

[0079] At the same time, the long drill bit 12 drives the fan blades 32 to rotate at high speed, creating a strong upward negative pressure inside the air duct 31. Because an air inlet is pre-installed between the bottom of the air duct 31 and the formwork 50, external air quickly enters and forms an airflow circulation. The wood chips produced during drilling are immediately drawn into the airflow upon breaking the formwork and transported upwards along the air duct 31, thus preventing the chips from scattering on the surface of the formwork 50 or falling into the bottom steel reinforcement cage 51 through the drilled gaps.

[0080] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A drilling device with positioning function for pre-embedding water and electricity pipelines, characterized in that: include, Drilling mechanism (10), which includes a long drill bit (12) for drilling. The telescopic joint (20) is detachably installed on the drilling mechanism (10), and the telescopic joint (20) extends and retracts along the axial direction of the long drill bit (12); The chip removal assembly (30) is fixedly installed at the bottom of the telescopic joint (20). The chip removal assembly (30) includes a fan blade (32) that is coaxial with and detachably connected to the long drill bit (12). The positioning assembly (40) includes multiple long arm plates (41) that are annularly fixed to the bottom of the chip removal assembly (30), and multiple positioning units (42) are installed on the long arm plates (41). The positioning components (40) are radially distributed, and multiple positioning units (42) on each long arm plate (41) are arranged linearly at equal intervals to form a virtual coordinate system simulating the lower steel reinforcement grid on the surface of the template (50) and to complete the positioning of the long drill bit (12). The long drill bit (12) drives the fan blade (32) to rotate at high speed to clean up the debris generated when drilling the template (50).

2. The drilling device with positioning function for pre-embedded water and electricity pipelines according to claim 1, characterized in that, The drilling mechanism (10) includes a hand drill (11); The telescopic joint (20) includes a fixed sleeve (21) that can be detachably connected to the housing of the electric drill (11). The fixed sleeve (21) is coaxially slidably provided with a movable sleeve (22). The bottom of the movable sleeve (22) is coaxially fixed with an air duct (31). The top of the air duct (31) is provided with multiple exhaust holes (311). The long arm plate (41) is distributed in a ring at the bottom of the air duct (31).

3. A drilling device with positioning function for pre-embedded water and electricity pipelines according to claim 2, characterized in that, The positioning unit (42) includes a movable block (421) and a display rod (43) fixed to the top of the movable block (421). A strong magnet (423) is fixed to the bottom of the movable block (421). The long arm plate (41) has multiple through-holes (411). The movable block (421) is adapted to the holes (411). A cover plate (44) is detachably installed on the top of the long arm plate (41). The display rod (43) passes through the cover plate (44). The cover plate (44) and the movable block (421) are fixedly connected by a tension spring (422). When there is no steel bar (51) under the strong magnet (423), the tension of the spring (422) is greater than the sum of the weights of the strong magnet (423) and the display rod (43); when there is a steel bar (51) under the strong magnet (423), the magnetic attraction of the steel bar (51) to the strong magnet (423) and the sum of their weights are greater than the tension of the spring (422), thereby driving the display rod (43) to sink and retract.

4. A drilling device with positioning function for pre-embedded water and electricity pipelines according to claim 3, characterized in that, An intercepting mesh plate (33) is fixedly installed inside the air duct (31), and the intercepting mesh plate (33) is placed below the fan blade (32).

5. A drilling device with positioning function for pre-embedded water and electricity pipelines according to claim 3, characterized in that, The fan blade (32) has multiple threaded holes (321) in the radial direction, and the side wall of the air duct (31) has multiple operating holes (312) corresponding to the threaded holes (321).

6. A drilling device with positioning function for pre-embedded water and electricity pipelines according to claim 3, characterized in that, The top of the fixed sleeve (21) is fixed with an installation sleeve (23), and the installation sleeve (23) is threaded with a plurality of locking bolts (231). The outer wall of the fixed sleeve (21) is symmetrically provided with strip-shaped sliding holes (211). The top of the movable sleeve (22) is symmetrically fixed with a positioning rod (221) inside the sliding hole (211).

7. A drilling device with positioning function for pre-embedded water and electricity pipelines according to claim 3, characterized in that, The outer surface of the display rod (43) is coated with a striking coating.

8. A drilling device with positioning function for pre-embedded water and electricity pipelines according to claim 3, characterized in that, The long arm plate (41) is fixed to the bottom edge of the air duct (31), and the top surface of the long arm plate (41) is lower than the air inlet edge at the bottom of the air duct (31), so that when the long arm plate (41) is close to the template (50), a circumferential negative pressure air inlet cavity is formed at the bottom of the air duct (31).

9. A drilling device with positioning function for pre-embedded water and electricity pipelines according to claim 3, characterized in that, The fan blade (32) is rotatably connected to the air duct (31).

Images