Wall punching device

Abstract

The invention provides a wall perforating device which comprises a drill bit, a motor and a linear driving piece, the linear driving piece is fixedly connected with a motor frame, the motor is fixedly connected with the drill bit, the wall perforating device further comprises a dust removal assembly, and the dust removal assembly comprises a suction cylinder with the two ends sealed and a dust removal assembly which is connected with the motor and the drill bit. A plurality of dust collection holes are formed in the end part of the suction cylinder connected with the motor; the gas collecting hood is connected with the outer wall of the suction tube; the air collection cylinder is sleeved on the suction cylinder, one end of the air collection cylinder is fixedly connected with the motor frame, the other end of the air collection cylinder is connected with the suction cylinder through a bearing, the outer wall of the suction cylinder is provided with a plurality of second air holes communicated with the first air holes arranged on the air collection cylinder, and the air collection cylinder is provided with an exhaust port with a first air delivery pipe; and the dust collection equipment is communicated with the exhaust pipe through a first air delivery pipe. According to the invention, the suction cylinder can quickly suck dust in the peripheral direction of the drill bit, and the situation that the suction negative pressure generated at the inner side wall of the conical dust suction hood and the wide-mouth end of the conical dust suction hood is relatively weak and the dust suction force is influenced is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of wall construction in building engineering, and specifically to a wall drilling device. Background Art

[0002] During the interior decoration process of building engineering construction, it is usually necessary to drill holes in the wall to facilitate the subsequent installation of electrical equipment. Whether using a manual drill or an electric drill, a large amount of dust and gun smoke will be generated. Since the interior decoration of a building is also a relatively enclosed space environment, the dust generated during wall drilling will not be quickly discharged outdoors, and the dust remaining indoors for a long time will have an adverse impact on the physical health of construction workers. Therefore, it is necessary to carry out dust suppression treatment on the dust generated during indoor wall construction.

[0003] Currently, there are generally two methods for indoor dust suppression: one is wet dust removal technology, and the other is dry dust removal technology.

[0004] Among them, the wet dust removal technology mainly uses a spraying device to sprinkle water on the drilling area to prevent the chips and dust generated during drilling from flying. However, spraying water on the wall will cause the sewage to flow down along the wall and dirty the wall, affecting the beauty of the decoration;

[0005] For the dry dust removal technology, it is to connect a dust suction device through a commonly used conical cover to suck in the dust. For example, an indoor wall drilling device for building engineering that can prevent dust diffusion disclosed in the authorized publication number CN216860208U. In the specification of this wall drilling device, it is given that the narrow end of the conical dust suction cover is connected to the dust removal device through a pipeline, and the wide end of the conical dust suction cover is used to suck in the dust-laden air under the action of the dust suction device. Since the suction negative pressure generated at the inner wall of the conical dust suction cover and the wide end of the conical dust suction cover is relatively weak, the suction force of dust at these places is greatly reduced. Therefore, setting the suction head given in this authorized text at the inner wall of the conical dust suction cover and connecting it to the dust suction fan through a drainage pipe cannot quickly collect the dust with a high concentration outside the drill bit (and the dust in the conical dust suction cover), thus reducing the dust suction efficiency. Summary of the Invention

[0006] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a wall drilling device. By arranging a suction cylinder connected to the dust suction device on the outer circumference of the drill bit, the suction cylinder can quickly absorb the dust on the outer circumference of the drill bit, avoiding the problem that the suction negative pressure generated at the inner wall of the conical dust suction cover and the wide end of the conical dust suction cover is relatively weak, resulting in a greatly reduced suction force of dust at these places, and at the same time improving the dust suction efficiency. Therefore, this wall drilling device has very important significance.

[0007] To solve the above technical problems, the present invention adopts the following technical solutions:

[0008] A wall drilling device includes: a drill bit, a motor with a motor bracket, and a linear drive member, wherein the drive end of the linear drive member is fixedly connected to the motor bracket, and the motor is fixedly connected to the drill bit. It further includes: a dust removal assembly for collecting the dust generated during drilling, and the dust removal assembly includes:

[0009] A suction cylinder sealed at both ends, connected to the motor and the drill bit respectively, and a plurality of dust suction holes are provided at the end of the suction cylinder connected to the motor;

[0010] An air collecting hood, connected to the outer wall of the suction cylinder, for collecting the dust rising during drilling;

[0011] A gas collecting cylinder sealed at both ends, sleeved on the suction cylinder located outside the air collecting hood, and one end is fixedly connected to the motor bracket, and the other end is connected to the suction cylinder through a bearing. A plurality of second air holes communicating with the first air holes provided on the gas collecting cylinder are provided on the outer wall of the suction cylinder, and an exhaust port with a first air pipe is provided on the gas collecting cylinder;

[0012] A dust suction device, communicated with the exhaust pipe through the first air pipe.

[0013] Preferably, the drill bit and the suction cylinder are concentric, and a plurality of dust suction holes are provided at the end of the suction cylinder located on the outer periphery of the drill bit, and a first reduced-diameter intake pipe is provided in each dust suction hole.

[0014] Preferably, a baffle is provided in the air collecting hood close to the wall, a through hole for the drill bit to pass through is opened on the baffle, and a second reduced-diameter intake pipe is provided in the through hole.

[0015] Preferably, a second air pipe is connected to the second reduced-diameter intake pipe, a third reduced-diameter intake pipe is connected to the second air pipe, the third reduced-diameter intake pipe is connected to the inner wall of the air collecting hood, and the second reduced-diameter intake pipe, the second air pipe and the third reduced-diameter intake pipe form a Venturi tube structure.

[0016] Preferably, the suction end of the suction cylinder extends into the connection part of the second air pipe and the third reduced-diameter intake pipe.

[0017] Preferably, a plurality of vertical plates are provided on the inner wall of the air collecting hood, and each vertical plate is longitudinally distributed along the cross section of the air collecting hood to reduce the probability of the gas forming boundary eddy currents at the inner wall of the air collecting hood.

[0018] Preferably, every three of the vertical plates are arranged on the inner wall of the air collecting hood at equal intervals.

[0019] Preferably, the included angle between each vertical plate and the cross section of the air collecting hood is 60 degrees - 90 degrees.

[0020] Preferably, the dust collection device includes a housing, a vacuum cleaner and a dust collection box are provided in the housing, an air outlet of the vacuum cleaner is connected to the dust collection box, an air inlet of the vacuum cleaner is communicated with an exhaust pipe through a first air pipe, and the vacuum cleaner is electrically connected to a first control switch.

[0021] Preferably, the linear driving member is an electric push rod, the motor is a steering gear or a stepping motor, frames are provided outside the motor, the motor frame and the electric push rod, a support rod is longitudinally provided on the motor frame, a slider is provided on the support rod, and a transverse sliding groove matched with the sliding of the slider is formed on the frame, and the housing is arranged outside the frame.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] In the wall drilling device provided by the present invention, while sucking the air with dust through the suction negative pressure at the dust suction hole, the gas collecting hood that rotates at a high speed is a variable diameter structure, so a conical suction port can be constructed under the action of an external force. At the same time, after the vertical plates connected to the inner wall of the gas collecting hood are arranged at equal intervals, the inner diameter of the gas collecting hood is further reduced, which improves the gas flow velocity. At the same time, when the gas flows through each vertical plate, the flow path will be changed, so the problem that the suction negative pressure at the inner wall of the gas collecting hood caused by air turbulence is relatively weak and affects the suction efficiency can be reduced. Furthermore, the dust-containing air collected inside the gas collecting hood is directed towards the dust suction hole, which improves the dust suction efficiency. In addition, a baffle, a second reduced-diameter air inlet pipe, a second air pipe and a third reduced-diameter air inlet pipe are arranged inside the gas collecting hood to form a Venturi tube structure, which can prevent the dust after drilling from spreading outwards, and the Venturi structure can quickly send the dust to the dust suction hole under the action of negative pressure, which can greatly improve the dust suction efficiency. Description of the Drawings

[0024] Figure 1 is a schematic structural diagram of a wall drilling device of the present invention;

[0025] Figure 2 is a schematic structural diagram of a wall drilling device of the present invention;

[0026] Figure 3 is a schematic structural diagram of a wall drilling device of the present invention;

[0027] Figure 4 is a schematic structural diagram of a wall drilling device of the present invention;

[0028] Figure 5 is a schematic structural diagram of a wall drilling device of the present invention.

[0029] Description of the Reference Numerals:

[0030] 1. Drill bit; 2. Motor; 3. Linear drive; 4. Motor bracket; 5. Dust removal assembly; 5-1. Suction cylinder; 5-2. Suction hole; 5-3. Air collecting hood; 5-4. Air collecting cylinder; 5-5. First air pipe; 5-6. Exhaust port; 5-7. Dust collection equipment; 5-71. Vacuum cleaner; 5-72. Dust collection box; 5-8. First reduced-diameter air inlet pipe; 6. Baffle; 7. Through hole; 8. Second reduced-diameter air inlet pipe; 9. Second air pipe; 10. Third reduced-diameter air inlet pipe; 11. Vertical plate, 12. Frame, 13. Support rod. Detailed implementation manners

[0031] The following is a detailed description of the specific implementation manners of the present invention, but it should be understood that the protection scope of the present invention is not limited by the specific implementation manners. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present invention. The experimental methods in the embodiments of the present invention are conventional methods unless otherwise specified.

[0032] Embodiment

[0033] As Figure 1As shown, in order to solve the problems in the prior art that when dust is removed by wet spray dust removal technology, sewage flows downward along the wall surface, soiling the wall surface and affecting the beauty of the decoration, and in the dry dust suction technology, the suction negative pressure generated at the inner wall of the conical dust suction hood and at the wide mouth end of the conical dust suction hood is relatively weak, resulting in a greatly reduced dust suction force at these places, and directly setting the dust suction head at the inner wall of the conical dust suction hood and connecting it to the dust suction fan through a drainage pipe cannot quickly collect the dust with a high concentration outside the drill bit. Therefore, the present invention provides a wall drilling device, including: a drill bit 1, a motor 2 with a motor frame 4, and a linear drive member 3, wherein the drive end of the linear drive member 3 is fixedly connected to the motor frame 4 (the linear drive member 3 here can be any one of a hydraulic cylinder, an electric cylinder, and an electric push rod), the motor 2 is fixedly connected to the drill bit 1, and further includes: a dust removal assembly 5 for collecting the dust generated during drilling, the dust removal assembly 5 including: a suction cylinder 5-1 sealed at both ends, a gas collecting hood 5-3, a gas collecting cylinder 5-4 sealed at both ends, and a dust suction device 5-7, wherein the suction cylinder 5-1 sealed at both ends is respectively connected to the motor 2 and the drill bit 1, and a plurality of dust suction holes 5-2 are provided at the end of the suction cylinder 5-1 connected to the motor 2; the gas collecting hood 5-3 is connected to the outer wall of the suction cylinder 5-1 for collecting the dust rising during drilling; the gas collecting cylinder 5-4 sealed at both ends is sleeved on the suction cylinder 5-1 located outside the gas collecting hood 5-3, and one end is fixedly connected to the motor frame 4 and the other end is connected to the suction cylinder 5-1 through a bearing, and a plurality of second air holes communicating with the first air holes provided on the gas collecting cylinder 5-4 are provided on the outer wall of the suction cylinder 5-1, and an exhaust port 5-6 with a first air pipe 5-5 is provided on the gas collecting cylinder 5-4; the dust suction device 5-7 is communicated with the exhaust pipe 5-6 through the first air pipe 5-5, the dust suction device 5-7 is electrically connected to the power supply through a first control switch, the motor 2 is electrically connected to the power supply through a second control switch, and if the linear drive member 3 is an electric push rod, the electric push rod is electrically connected to the power supply through a third control switch.

[0034] Specific operations during use: Hold the handle on the motor holder 4, vertically align the drilling device with the wall to be drilled, then activate the first control switch to cause the suction device 5-7 to generate a suction negative pressure, activate the second control switch to cause the motor 2 to drive the drill bit 1, the suction cylinder 5-1 connected to the drill bit 1, and the air collector 5-3 to rotate. The motor 2 drives the drill bit 1 to rotate, and under the direct driving force of the linear driving member 3, drives the drill bit 1 to drill into the wall to achieve drilling. The high-speed rotating air collector 5-3 is a variable-diameter structure, so it can form a conical suction inlet under the action of external force, and send the dust-laden air into the suction hole 5-2. In addition, the inner diameter of the air collector 5-3 is smaller at the top and larger at the bottom, which can increase the degree of air disturbance, convert the kinetic energy of the upward movement of the dust into the energy of the downward movement, and reduce the relatively weak suction negative pressure generated at the inner side wall of the conical suction hood and the wide-mouth end of the conical suction hood, which is beneficial to improving the gas flow velocity here. The dust-laden gas sucked into the suction hole 5-2 enters the second air chamber through the first air hole, and is sent to the suction device 5-7 through the first air pipe 5-5 connected to the exhaust port 5-6 of the air collector cylinder 5-4. In order to improve the sealing performance between the air collector cylinder 5-4 and the suction cylinder 5-1, a sealing rubber ring is also provided in the bearing.

[0035] Specifically, on the basis of the above-mentioned Embodiment 1 remaining unchanged, specifically, as Figure 2 shown, the drill bit 1 and the suction cylinder 5-1 are concentric, and a plurality of suction holes 5-2 are provided at the end of the suction cylinder 5-1 located on the outer periphery of the drill bit 1, and a first reduced-diameter intake pipe 5-8 is provided in each suction hole 5-2.

[0036] The suction hole 5-2 and the first reduced-diameter intake pipe 5-8 are integrally formed, and by setting the first reduced-diameter intake pipe 5-8, the air rate entering the suction hole 5-2 can be increased, which is beneficial to improving the dust suction efficiency.

[0037] Specifically, on the basis of the above-mentioned Embodiments 1 and 2 remaining unchanged, specifically, as Figure 3 shown, a baffle 6 is provided in the air collector 5-3 close to the wall, a through hole 7 through which the drill bit 1 passes is opened on the baffle 6, and a second reduced-diameter intake pipe 8 is provided in the through hole 7. A second air pipe 9 is connected to the second reduced-diameter intake pipe 8, a third reduced-diameter intake pipe 10 is connected to the second air pipe 9, the third reduced-diameter intake pipe 10 is connected to the inner wall of the air collector 5-3, and the second reduced-diameter intake pipe 8, the second air pipe 9, and the third reduced-diameter intake pipe 10 form a Venturi tube structure.

[0038] During use, in order to prevent the gas inhaled into the air collecting hood 5-3 from diffusing and forming turbulence at the inner wall of the air collecting hood 5-3, accumulating on the inner wall of the air collecting hood 5-3, making the suction negative pressure relatively weak at the inner wall of the air collecting hood 5-3, a baffle 6, a through hole 7, a second reduced-diameter intake pipe 8, a second air delivery pipe 9, and a third reduced-diameter intake pipe 10 are provided inside the air collecting hood 5-3, avoiding the problem that the dust gas generated during drilling diffuses to the inner wall of the air collecting hood 5-3, thereby indirectly improving the dust collection efficiency. In addition, the second reduced-diameter intake pipe 8, the second air delivery pipe 9, and the third reduced-diameter intake pipe 10 form a Venturi tube structure, which is beneficial to improving the flow rate of the dust gas, thereby improving the dust collection efficiency. The suction end of the suction cylinder 5-1 extends into the connection between the second air delivery pipe 9 and the third reduced-diameter intake pipe 10.

[0039] Specifically, on the basis of the above-mentioned Embodiment 1 remaining unchanged, specifically, as Figure 4 shown, specifically, a plurality of vertical plates 11 are provided on the inner wall of the air collecting hood 5-3, and each vertical plate 11 is longitudinally distributed along the cross-section of the air collecting hood 5-3, for reducing the probability of the gas forming boundary eddies at the inner wall of the air collecting hood 5-3.

[0040] Specifically, every three of the vertical plates 11 are arranged at equal intervals on the inner wall of the air collecting hood 5-3.

[0041] Specifically, the included angle between each vertical plate 11 and the cross-section of the air collecting hood 5-3 is 60 degrees - 90 degrees.

[0042] Specifically, on the basis of the above-mentioned Embodiment 1 remaining unchanged, specifically, as Figure 5 shown, the specific structure of the dust collection device 5-7 is given, wherein the dust collection device 5-7 includes a housing, a dust collector 5-71 and a dust collection box 5-72 are provided inside the housing, the air outlet of the dust collector 5-71 is connected to the dust collection box 5-72, the air inlet of the dust collector 5-71 is communicated with the exhaust pipe 5-6 through the first air delivery pipe 5-5, and the dust collector 5-71 is electrically connected to the first control switch.

[0043] Specifically, on the basis of the above-mentioned Embodiment 1 remaining unchanged, specifically, as Figure 5 shown, the linear driving member 3 is an electric push rod, the motor 2 is a servo motor or a stepping motor, frames 12 are provided outside the motor 2, the motor frame 4 and the electric push rod, a support rod 13 is longitudinally provided on the motor frame 4, a slider is provided on the support rod 13, and transverse sliding grooves matching the sliding of the slider are formed on the frame 12, and the housing is provided outside the frame 12.

[0044] During use, on the premise that the frame 12 can be fixed or supported by a support frame, it can be placed at the wall where holes need to be drilled, which can avoid damage to the machine body caused by manual support. In addition, the motor 2 can slide along the transverse chute under the driving force of the electric push rod, driven by the support rod 13 and the slider fixed at the end of the support rod 13, so as to achieve uniform force on the holes during drilling.

[0045] The experimental results of the present invention:

[0046] The dust removal of the hole drilling device of the present invention was compared with that of a similar hole drilling device in the prior art. The rotating dust collection cover of the hole drilling device of the present invention collects dust. Since the dust collection cover can rotate at a high speed, the dust suction amount of the present invention is 40 - 50% higher than that of the device given in the prior art. The best structure of the present invention is that a baffle is provided in the air collecting cover close to the wall, a through hole for the drill bit to pass through is opened on the baffle, a second reduced-diameter air inlet pipe is provided in the through hole, a second air delivery pipe is connected to the second reduced-diameter air inlet pipe, a third reduced-diameter air inlet pipe is connected to the second air delivery pipe, and the third reduced-diameter air inlet pipe is connected to the inner wall of the air collecting cover. The second reduced-diameter air inlet pipe, the second air delivery pipe and the third reduced-diameter air inlet pipe form a Venturi tube structure. When the dust concentration in the environment is low, the dust suction effect of the present invention is significantly higher than that of a similar dust reduction device in the prior art. During the same test time, its dust suction amount is at most 50% higher than that of the dust reduction device in the prior art.

[0047] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these changes and modifications.

Claims

1. A wall drilling device, comprising: A drill bit (1), a motor (2) with a motor bracket (4), and a linear drive (3), wherein the drive end of the linear drive (3) is fixedly connected to the motor bracket (4), and the motor (2) is fixedly connected to the drill bit (1). It is characterized in that it further comprises a dust removal assembly (5) for collecting the dust generated during drilling. The dust removal assembly (5) comprises: A suction cylinder (5-1) sealed at both ends, which is respectively connected to the motor (2) and the drill bit (1), and a plurality of dust suction holes (5-2) are provided at the end of the suction cylinder (5-1) connected to the motor (2); An air collecting hood (5-3), which is connected to the outer wall of the suction cylinder (5-1) and is used for collecting the dust rising during drilling; A gas collecting cylinder (5-4) sealed at both ends, which is sleeved on the suction cylinder (5-1) located outside the air collecting hood (5-3), and one end is fixedly connected to the motor bracket (4), and the other end is connected to the suction cylinder (5-1) through a bearing. A plurality of second air holes communicating with the first air holes provided on the gas collecting cylinder (5-4) are provided on the outer wall of the suction cylinder (5-1). An exhaust port (5-6) with a first air pipe (5-5) is provided on the gas collecting cylinder (5-4); A dust suction device (5-7), which is communicated with the exhaust pipe (5-6) through the first air pipe (5-5).

2. A wall punching device according to claim 1, characterized in that, The drill bit (1) and the suction cylinder (5-1) are concentric, and a plurality of dust suction holes (5-2) are provided at the end of the suction cylinder (5-1) located on the outer periphery of the drill bit (1), and a first reduced-diameter air inlet pipe (5-8) is provided in each dust suction hole (5-2).

3. A wall drilling device according to claim 2, characterized in that, A baffle (6) is provided in the air collecting hood (5-3) close to the wall, and a through hole (7) through which the drill bit (1) passes is opened on the baffle (6), and a second reduced-diameter air inlet pipe (8) is provided in the through hole (7).

4. A wall punching device according to claim 3, characterized in that, A second air pipe (9) is connected to the second reduced-diameter air inlet pipe (8), a third reduced-diameter air inlet pipe (10) is connected to the second air pipe (9), and the third reduced-diameter air inlet pipe (10) is connected to the inner wall of the air collecting hood (5-3), and the second reduced-diameter air inlet pipe (8), the second air pipe (9), and the third reduced-diameter air inlet pipe (10) form a Venturi tube structure.

5. A wall punching device according to claim 4, characterized in that, The suction end of the suction cylinder (5-1) extends into the connection part of the second air pipe (9) and the third reduced-diameter air inlet pipe (10).

6. A wall punching device according to claim 2, characterized in that, A plurality of vertical plates (11) are provided on the inner wall of the air collecting hood (5-3), and each vertical plate (11) is longitudinally distributed along the cross section of the air collecting hood (5-3) and is used for reducing the probability of the gas forming boundary eddies at the inner wall of the air collecting hood (5-3).

7. A wall drilling device according to claim 6, characterized in that, Every three of the vertical plates (11) are arranged at equal intervals on the inner wall of the air collecting hood (5-3).

8. A wall punching device according to claim 6, characterized in that, The included angle between each vertical plate (11) and the cross section of the air collecting hood (5-3) is 60 degrees - 90 degrees.

9. A wall drilling device according to claim 1, characterized in that, The dust suction device (5-7) comprises a casing. A dust collector (5-71) and a dust collection box (5-72) are provided in the casing. The air outlet of the dust collector (5-71) is connected to the dust collection box (5-72). The air inlet of the dust collector (5-71) is communicated with the exhaust pipe (5-6) through the first air pipe (5-5), and the dust collector (5-71) is electrically connected to a first control switch.

10. A wall punching device according to claim 1, characterized in that, The linear drive (3) is an electric push rod, the motor (2) is a steering gear or a stepping motor, frames (12) are provided outside the motor (2), the motor bracket (4) and the electric push rod, a support rod (13) is longitudinally provided on the motor bracket (4), a slider is provided on the support rod (13), a transverse sliding groove matching the sliding of the slider is formed in the frame (12), and the machine shell is arranged outside the frame (12).

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