Hole opening device for building wall

Abstract

The utility model relates to the technical field of construction equipment, in particular to a building wall perforating device which comprises a handheld drill used for conducting drilling operation; the dust blocking cover slides at one end of the handheld drill and can cover a drill bit, and the end, close to the wall surface, of the dust blocking cover is closed up; the abutting assembly is arranged on the handheld drill, connected with the dust blocking cover and used for driving the dust blocking cover to slide and can drive the dust blocking cover to abut against the wall face. The drilling device has the effect of reducing dust flying during drilling.

Description

Technical Field

[0001] This application relates to the technical field of construction equipment, and in particular to a device for opening holes in building walls. Background Technology

[0002] Currently, with the increasing sophistication of modern home decoration, wall drilling has become a routine operation for furniture installation, decorative fixture fixing, and pipeline laying. Statistics show that the average household requires drilling 5-10 times per year, covering various scenarios such as air conditioner installation, shelf hanging, and smart device wiring.

[0003] In existing technologies, drilling operations mostly rely on handheld electric drills for direct construction. During the operation, concrete debris, brick dust, and other particulate matter are easily scattered in all directions. Especially in occupied environments, dust can easily contaminate furniture surfaces, carpets, and electronic devices, resulting in high cleaning costs. In addition, long-term exposure to suspended dust environments may pose respiratory health risks, making users' demand for dust-free construction increasingly urgent. Summary of the Invention

[0004] To reduce dust emissions during drilling, this application provides a device for drilling holes in building walls.

[0005] This application provides a wall opening device, which adopts the following technical solution:

[0006] A wall opening device for building structures, comprising:

[0007] A handheld drill, used for drilling operations;

[0008] A dust cover slides onto one end of the handheld drill and can cover the drill bit, with the end near the wall narrowing off.

[0009] A clamping component is mounted on the hand drill and connected to the dust cover. It is used to move the dust cover and to bring the dust cover against the wall.

[0010] By adopting the above technical solution, the drilling point is first determined. Then, the dust cover is brought out of the drill bit by the clamping component. The drill bit is aligned with the drilling position. After the hand drill is started, the clamping component pushes the dust cover to slide along the drill bit axis, so that the closing end fits tightly against the wall to form a semi-enclosed space. The dust generated during drilling is confined inside the cover, and the cover moves forward synchronously with the drilling depth, always keeping the drill bit covered.

[0011] By linking the sliding dust cover with the clamping component, dust can be blocked in real time during drilling, reducing dust escape compared to traditional fixed dust covers. Drilling and dust prevention can be completed simultaneously with one hand, without the need for additional fixing devices, thus improving work efficiency. The tapered design is compatible with drill bits with diameters of 5-20mm and is suitable for various wall materials such as ceramic tiles and concrete.

[0012] Optionally, the dust cover is provided with a dust suppression component, which includes a dust suppression pipe, a water box, and a control valve. The dust suppression pipe is arranged along the length of the dust cover and has multiple water outlets. The water box is arranged on the outer wall of the dust cover and is connected to the dust suppression pipe, with the control valve arranged between them.

[0013] By adopting the above technical solution, after the control valve is opened, the water stored in the water box is transported to the water outlet through the dust suppression pipe, forming a water mist curtain that covers the drill bit working area. The water mist collides and agglomerates with the dust particles and then settles, while simultaneously wetting the drill bit to reduce friction temperature.

[0014] The combined effect of physical barrier and water mist adsorption reduces PM2.5 concentration; the humid environment effectively inhibits the explosion of building materials caused by high drilling temperatures; the water box can be quickly disassembled for water filling, and the amount of water filled at one time supports continuous operation; and the dripping design can carry out a large amount of dust in the hole during the drilling process, reducing the retention of dust in the hole.

[0015] Optionally, the dust suppression assembly further includes a baffle plate, which is disposed on the hand drill and corresponding to the dust suppression pipe, and is used to block the water outlet of the dust suppression pipe when the dust cover moves backward.

[0016] By adopting the above technical solution, when the dust cover retracts to the non-working position, the baffle plate blocks the water outlet, precisely blocking the water outlet of the dust suppression pipe and reducing residual water droplets; the mechanical linkage interlock ensures zero leakage in the non-working area, avoiding contamination of furniture; it isolates external dust from being sucked back into the dust suppression pipe, reducing the probability of pipe blockage; the small gap between the edge of the baffle plate and the water outlet improves the reliability of the interlock.

[0017] Optionally, a scraper is provided at the end of the baffle plate, and the scraper bends toward the dust collection pipe so that the scraper presses against and scrapes away the dust on the dust collection pipe.

[0018] By adopting the above technical solution, when the dust cover slides back and forth, the scraper slides along the outer wall of the dust collection pipe and scrapes off the attached dust by using the contact pressure generated by elastic deformation. The scraped dust falls into the bottom dust collection area. Every 10 slides can remove more than 90% of the scale on the pipe wall and extend the maintenance cycle by 3 times. It also maintains the consistency of the water outlet diameter and improves the uniformity of water mist distribution by 40%.

[0019] Optionally, an adjustment component is provided at the connection between the dust cover and the clamping component. The adjustment component includes a first adjustment ring and a second adjustment ring. The first adjustment ring is connected to the adjustment component, and the second adjustment ring is threadedly connected to the second adjustment ring.

[0020] By adopting the above technical solution, rotating the first adjusting ring can change the axial distance between the dust cover and the clamping component. When the length of the drill bit changes, in order to facilitate the easy exposure of the end of the drill bit, the axial length can be adjusted by rotating the second adjusting ring, thereby improving the applicability of the equipment.

[0021] Optionally, the dust cover is provided with a dust collection box, and the dust collection box is in communication with the dust cover.

[0022] By adopting the above technical solution, dry dust that is not adsorbed by water mist and moist dust fall freely into the dust collection box. The filter screen inside the box separates the gas and solid phases, and clean air is discharged.

[0023] The combined dust removal system of dust blocking and water mist improves the overall dust removal efficiency; the transparent dust collection box design supports real-time monitoring of dust volume, and the full load warning threshold can be set.

[0024] Optionally, the contact surface between the dust cover and the wall has a flexible layer.

[0025] By adopting the above technical solution, the flexible layer can be closely attached to the wall, reducing dust emissions, and can undergo elastic deformation, making it suitable for drilling work with small inclination angles.

[0026] Optionally, the dust cover includes a rigid pipe section, a corrugated pipe section, a rotating ring, and a support frame. The rigid pipe section is close to the wall, and a limiting ring is provided at the connection between the corrugated pipe section and the rigid pipe section. The limiting ring has an opening. Multiple support frames are provided and are disposed on the rotating ring. The rotating ring is rotatably disposed on the second adjusting ring. The support frame can rotate to engage with the opening of the limiting ring. A limiting block is provided on the support frame, and the limiting block is located on the side of the limiting ring closer to the hand drill.

[0027] By adopting the above technical solution, when not in use, the support frame can be separated from the limiting ring and the limiting block can be separated from the limiting ring by rotating the rotating ring, thus folding the corrugated section to shorten its length, making it easier to store or make the drill bit smoother.

[0028] In summary, this application includes at least one of the following beneficial technical effects:

[0029] 1. By linking the sliding dust cover with the clamping component, dust can be blocked in real time during drilling, reducing dust escape compared to traditional fixed dust covers; drilling and dust prevention can be completed simultaneously with one hand, without the need for additional fixing devices, thus improving work efficiency; the tapered design is compatible with drill bits of 5-20mm diameter and is suitable for various wall materials such as ceramic tiles and concrete.

[0030] 2. When the dust cover retracts to the non-working position, the baffle plate blocks the water outlet, precisely blocking the water outlet of the dust suppression pipe and reducing residual water droplets; the mechanical linkage interlock ensures zero leakage in non-working areas, avoiding contamination of furniture; it prevents external dust from being drawn back into the dust suppression pipe, reducing the probability of pipe blockage; the small gap between the edge of the baffle plate and the water outlet improves the reliability of the interlock.

[0031] 3. The flexible layer allows for close contact with the wall surface, reducing dust emissions, while also enabling elastic deformation, making it suitable for drilling operations with small inclination angles. Attached Figure Description

[0032] Figure 1 This is an overall structural diagram of the opening device in the embodiments of this application;

[0033] Figure 2 This is a detailed illustration of the abutting component in the embodiments of this application;

[0034] Figure 3 yes Figure 2 A magnified view of a portion of region A in the middle;

[0035] Figure 4 yes Figure 2 A magnified view of a portion of region B in the middle.

[0036] Reference numerals: 100, handheld drill; 200, dust cover; 210, rigid pipe section; 220, corrugated pipe section; 230, rotating ring; 240, support frame; 250, limiting block; 260, limiting ring; 261, opening; 300, clamping assembly; 310, sliding rod; 320, fixing sleeve; 330, spring; 400, dust suppression assembly; 410, dust suppression pipe; 411, water outlet; 420, water box; 430, baffle plate; 440, scraper; 500, adjusting assembly; 510, first adjusting ring; 520, second adjusting ring; 600, dust collection box. Detailed Implementation

[0037] The following combination Figures 1 to 4 This application will be described in further detail.

[0038] This embodiment discloses a device for opening holes in building walls.

[0039] This embodiment provides a device for drilling holes in building walls, aiming to solve the problems of dust pollution and inconvenience in traditional drilling operations. The device achieves efficient dust control throughout the drilling process through the synergistic effect of a dynamic sealing structure and a composite dust suppression system, while also ensuring operational flexibility and adaptability.

[0040] Reference Figure 1A wall drilling device includes a handheld drill 100, a dust cover 200, a clamping component 300, a dust suppression component 400, and a dust collection box 600. The dust cover 200 is slidably connected to the end of the handheld drill 100 via the clamping component 300. The dust suppression component 400 is disposed inside the dust cover 200, and the dust collection box 600 is disposed on the dust cover 200 to collect a mixture of dust and water. During drilling, the drill bit of the handheld drill 100 is pressed against the drilling position, and the clamping component 300 drives the dust cover 200 to press against the wall. During the drilling process, as the drill bit of the handheld drill 100 drills in, the clamping component 300 drives the dust cover 200 to move. The dust suppression component 400 sprays water to quickly suppress dust and cools the handheld drill 100. Dust and water enter the dust collection box 600 for collection.

[0041] Reference Figure 2 The handheld drill 100 adopts a conventional electric drill structure, with the drill bit mounted at the front end of its output shaft. A dust cover 200 is slidably fitted onto the housing of the handheld drill 100, with its end near the wall designed as a tapered structure, the inner diameter of which is slightly larger than the drill bit diameter (usually with an 8mm gap). A clamping assembly 300 is fixedly connected to the handheld drill 100 by a plate with the same curvature as the handheld drill 100 and is detachably connected to the handheld drill 100 by bolts. The clamping assembly 300 consists of a fixed sleeve 320, a sliding rod 310, and a spring 330. At least three fixed sleeves 320 are provided, fixedly connected to the periphery of the handheld drill 100. The fixed sleeves 320 have sliding holes, and the sliding rod 310 is slidably connected within these sliding holes. The spring 330 is located within the sliding holes and connected to the sliding rod 310, and the spring 330 pushes the sliding rod 310 towards the wall.

[0042] The operator controls the dust cover 200 to move backward by using the clamping component 300, so that the front end of the drill bit is fully exposed; after the drill bit is aligned with the drilling position, the spring 330 pushes the dust cover 200 forward, and the closed end fits tightly against the wall to form a semi-enclosed space; the handheld drill 100 is turned on to drill the hole, and the dust cover 200 moves forward synchronously with the drill bit as it goes deeper, and the dust is confined inside the cover; after the drilling is completed, the dust cover 200 retracts with the drill bit, and the dust is guided into the dust collection box 600 through the built-in channel.

[0043] By mechanically linking the sliding dust cover 200 with the drilling action, dynamic dust sealing is achieved, reducing the amount of dust escape by more than 60%; the entire process of positioning, drilling, and dust removal can be completed with one hand, without the need for auxiliary fixing devices, thus improving work efficiency by 30%.

[0044] The dust suppression assembly 400 includes a dust suppression pipe 410, a water box 420, and a control valve. The dust suppression pipe 410 is arranged parallel to the axis of the dust cover 200, and water outlet holes 411 (0.3mm in diameter) are opened on the pipe wall at 5mm intervals. The water box 420 is snapped onto the outer wall of the dust cover 200, has a volume of 200mL, and has a built-in miniature liquid level sensor. The control valve is an electromagnetic proportional valve, which is located at the water outlet of the water box 420 and is opened and closed synchronously by the switch of the hand drill 100.

[0045] When drilling begins, the control valve opens automatically, and water stored in the water box 420 forms a water mist curtain that covers the drill bit's working area through the dust suppression pipe 410. The water mist collides with dust particles, condenses, and settles, while simultaneously wetting the drill bit and reducing its friction temperature.

[0046] The water mist curtain reduces PM2.5 concentration to below 50 μg / m³ (national standard limit 75 μg / m³); the drill bit temperature is controlled below 80℃ to avoid igniting flammable components in decoration materials; the 420 water box can be quickly disassembled for water filling, and a single water filling supports continuous drilling for 15 minutes.

[0047] Reference Figure 2 and Figure 3 The dust suppression assembly 400 also includes a baffle plate 430 and a scraper 440. The baffle plate 430 is fixedly installed on the housing of the handheld drill 100, and its axis is parallel to the axis of the dust suppression pipe 410, and its position corresponds to the water outlet 411 of the dust suppression pipe 410. The scraper 440 is a polyurethane elastomer, which is set at the end of the baffle plate 430, and is arc-shaped to partially cover the periphery of the dust suppression pipe 410, with the end away from the baffle plate 430 inclined towards the dust suppression pipe 410.

[0048] When the dust cover 200 moves backward, the dust cover 200 drives the dust collection pipe 410 to slide synchronously. The baffle plate 430 and the scraper 440 are relatively displaced from the dust collection pipe 410. The baffle plate 430 blocks part of the water outlet 411, while the scraper 440 scrapes along the outer wall of the dust collection pipe 410 to remove the attached dust.

[0049] The gap between the baffle plate 430 and the water outlet 411 is ≤0.1mm, which effectively prevents leakage during non-operation periods; the scraper 440 can remove more than 90% of the scale on the pipe wall every 10 slides, extending the maintenance cycle to 3 months; the diameter deviation of the water outlet 411 is controlled within ±5%, and the uniformity of water mist distribution is improved by 40%.

[0050] An adjusting component 500 is provided between the dust cover 200 and the clamping component 300. The adjusting component 500 includes a first adjusting ring 510 and a second adjusting ring 520. The first adjusting ring 510 is welded to the connecting rod of the clamping component 300. The first adjusting ring 510 and the second adjusting ring 520 are threaded together. Rotating the second adjusting ring 520 one revolution produces an axial displacement of 2mm. Rotating the first adjusting ring 510 changes the initial position of the dust cover 200 to accommodate drill bits of different lengths.

[0051] Reference Figure 2 and Figure 4 In other embodiments, the dust cover 200 adopts a segmented structure, including a rigid pipe section 210, a corrugated pipe section 220, a support frame 240, a rotating ring 230, a limiting ring 260, and a limiting block 250. The rigid pipe section 210 is made of stainless steel and has an embedded flexible sealing ring (Shore hardness 40A). The corrugated pipe section 220 is a silicone corrugated pipe that can be axially compressed to 1 / 3 of its original length. The corrugated pipe section 220 is rotatably mounted on the second adjusting ring 520 via the rotating ring 230. The support frame 240 is fixedly connected to the second adjusting ring 520, and the limiting block 250 is disposed on the support frame 240. 0 is the end away from the rotating ring 230; the limiting ring 260 is fixedly connected to the connection between the rigid pipe section 210 and the corrugated pipe section 220. The limiting ring 260 has an opening 261 on one side, which is opened along the circumference of the rigid pipe section 210. The support frame 240 can enter the opening 261 of the limiting ring 260 as the rotating ring 230 rotates, so that the limiting block 250 and the limiting ring 260 abut against the side wall of the rotating ring 230. In other embodiments, the contact surface between the limiting block 250 and the limiting ring 260 can be elastic, so that the corrugated pipe section 220 can be slightly folded when the inclined drilling is performed.

[0052] Rotating the rotating ring 230 causes the bellows section 220 and the support frame 240 to rotate relative to each other. The support frame 240 disengages from the opening 261 of the limiting ring 260, allowing the bellows section 220 to be compressed. After being stored, the overall length is shortened by 60%, making it easy to carry. The rigid pipe section 210 can be slightly bent in conjunction with the bellows section 220, adapting to drilling in inclined holes.

[0053] The implementation principle of this application embodiment is as follows: Install the drill bit (5-20mm in diameter) to the front end of the output shaft of the handheld drill 100; rotate the second adjusting ring 520, which produces a 2mm axial displacement for each rotation, precisely adjust the relative position of the dust cover 200 and the drill bit, avoid interference between the closing end and the drill bit, change the axial distance between the dust cover 200 and the drill bit, and ensure that the front end of the drill bit can be exposed when the dust cover 200 is away from the wall; attach the water box 420 filled with clean water to the outside of the dust cover 200, and ensure that the control valve is in the closed state; push the dust cover 200 forward with the spring 330, observe whether the flexible sealing ring at the closing end is evenly attached to the wall, and if necessary, fine-tune the axial distance through the second adjusting ring 520 to compensate for manufacturing tolerances.

[0054] Pulling the slide rod 310 of the clamping component 300 backward compresses the spring 330, causing the dust cover 200 to move backward and expose the drill bit. After aligning with the drilling position, release the slide rod 310, and the spring 330 pushes the dust cover 200 forward. The closed end forms a seal with the wall through the flexible sealing ring. During the drilling process, the dust cover 200 moves forward synchronously with the drill bit as it goes deeper. Its sliding amount is automatically adapted to the drilling depth through the axial clearance preset by the first adjusting ring 510, ensuring a full seal.

[0055] After the handheld drill 100 is started, the control valve opens simultaneously, and the water in the water box 420 flows through the dust collection pipe 410 to form a water mist curtain; the dust-water mixture enters the dust collection box 600 through the guide channel, and the collection volume is displayed in real time in the transparent box.

[0056] The flexible sealing ring at the end of the dust cover 200 can undergo elastic deformation to compensate for the wall tilt (within ±10°) without the need for an adjustment ring to participate in the angle adjustment; when the tilt angle is >10°, the flexible connection between the rigid pipe section 210 and the corrugated pipe section 220 allows the drill bit to deflect slightly, and the support frame 240 provides stability by locking the position through the limit block 250.

[0057] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A device for opening holes in building walls, characterized in that: include: A handheld drill (100) is used for drilling operations; A dust cover (200) slides at one end of the hand drill (100) and can cover the drill bit, and the end close to the wall is closed; The clamping component (300) is disposed on the hand drill (100) and connected to the dust cover (200). It is used to drive the dust cover (200) to slide and to drive the dust cover (200) to abut against the wall.

2. The wall opening device according to claim 1, characterized in that: The dust cover (200) is provided with a dust suppression component (400), which includes a dust suppression pipe (410), a water box (420) and a control valve. The dust suppression pipe (410) is arranged along the length of the dust cover (200) and has multiple water outlets (411). The water box (420) is arranged on the outer wall of the dust cover (200), and the water box (420) is connected to the dust suppression pipe (410) and the control valve is arranged between them.

3. The wall opening device according to claim 2, characterized in that: The dust suppression assembly (400) also includes a baffle plate (430), which is disposed on the hand drill (100) and is disposed corresponding to the dust suppression pipe (410), and is used to block the water outlet (411) of the dust suppression pipe (410) when the dust cover (200) moves backward.

4. The wall opening device according to claim 3, characterized in that: The end of the baffle plate (430) is provided with a scraper (440), which is bent toward the dust collection pipe (410) so that the scraper (440) presses against and scrapes away the dust on the dust collection pipe (410).

5. The wall opening device according to any one of claims 1-4, characterized in that: An adjustment component (500) is provided at the connection between the dust cover (200) and the clamping component (300). The adjustment component (500) includes a first adjustment ring (510) and a second adjustment ring (520). The first adjustment ring (510) is connected to the adjustment component (500), and the second adjustment ring (520) is threadedly connected to the second adjustment ring (520).

6. The wall opening device according to claim 5, characterized in that: The dust cover (200) is provided with a dust collection box (600), and the dust collection box (600) is connected to the dust cover (200).

7. The wall opening device according to claim 1, characterized in that: The dust cover (200) has a flexible layer on the contact surface with the wall.

8. The wall opening device according to claim 5, characterized in that: The dust cover (200) includes a rigid pipe section (210), a corrugated pipe section (220), a rotating ring (230), and a support frame (240). The rigid pipe section (210) is close to the wall. A limiting ring (260) is provided at the connection between the corrugated pipe section (220) and the rigid pipe section (210). The limiting ring (260) has an opening (261). Multiple support frames (240) are provided and are located on the rotating ring (230). The rotating ring (230) is rotatably mounted on the second adjusting ring (520). The support frame (240) can rotate to engage with the opening (261) of the limiting ring (260). A limiting block (250) is provided on the support frame (240). The limiting block (250) is located on the side of the limiting ring (260) close to the hand drill (100).

Images