Percussion drill for building maintenance and reconstruction and use method

Abstract

The invention provides a percussion drill for building maintenance and transformation and a using method, and relates to the technical field of building construction.The percussion drill for building maintenance and transformation comprises a base shell, a functional shell is fixedly arranged at the front end of the base shell, and a motor is fixedly arranged in the base shell; a motor shaft of the motor penetrates through the functional shell and is fixedly connected with the rear end of the power head, the rear end of the power head is rotationally connected with the functional shell, a mounting groove is formed in the front end of the power head and used for mounting a drill rod, and a driving mechanism connected with the motor shaft is arranged in the functional shell and connected with the heat dissipation mechanism and the positioning mechanism. The heat dissipation mechanism is arranged in the base shell, the positioning mechanism is arranged at the front end of the functional shell, the positioning mechanism is connected with the dustproof mechanism, the dustproof mechanism is connected with the heat dissipation mechanism and installed on the functional shell, and the positioning mechanism is connected with the working face in an adsorption mode. The acting force generated when the percussion drill for building maintenance and transformation is operated can be reduced, and the labor-saving effect is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, in particular to an impact drill for building maintenance and reconstruction and a use method thereof. Background Art

[0002] As cities develop and change day by day, people are increasingly interested in urban reconstruction and house renovation. Other structural parts are often installed on walls or panels during building interior decoration. Impact drills are mainly suitable for impact drilling on concrete floors, walls, bricks, stones, wooden boards and multi-layer materials. During the process of building maintenance and renovation, impact drills are used for drilling. During the drilling process, the impact drill relies on the thrust of the operator to generate impact force, and the drive of the impact drill itself has rotation and reciprocating impact effects. When the operator applies thrust to the impact drill, the vibration generated by the impact of the impact drill will be directly fed back to the operator, requiring the operator to use greater force to hold the impact drill to ensure the stability of drilling. In addition, the vibration generated by the impact of the impact drill can easily cause deviations in drilling, affecting the drilling accuracy. Summary of the invention

[0003] The present invention provides an impact drill for building maintenance and renovation and a method for using the same, so as to solve the above-mentioned technical problems that when the operator applies thrust to the impact drill, the vibration generated by the impact of the impact drill will be directly fed back to the operator, requiring the operator to use greater force to hold the impact drill to ensure drilling stability, and the vibration generated by the impact of the impact drill will easily cause deviation in drilling, thereby affecting the drilling accuracy.

[0004] In order to solve the above technical problems, the present invention discloses an impact drill for building maintenance and renovation, comprising a base shell, a functional shell is fixedly provided at the front end of the base shell, a motor is fixedly provided inside the base shell, a motor shaft of the motor passes through the functional shell and is fixedly connected to the rear end of a power head, the rear end of the power head is rotatably connected to the functional shell, a mounting groove is provided at the front end of the power head, the mounting groove is used to install a drill rod, a driving mechanism connected to the motor shaft is provided inside the functional shell, the driving mechanism is respectively connected to a heat dissipation mechanism and a positioning mechanism, the heat dissipation mechanism is arranged inside the base shell, the positioning mechanism is arranged at the front end of the functional shell, the positioning mechanism is connected to the dustproof mechanism, the dustproof mechanism is connected to the heat dissipation mechanism, and the dustproof mechanism is installed on the functional shell.

[0005] Preferably, a cavity is provided inside the base shell, a motor is fixed in the cavity, a plurality of heat dissipation holes are provided at the rear end of the base shell, the plurality of heat dissipation holes are connected to the cavity, and air intake pipes are provided at the left and right ends of the base shell, respectively, the air intake pipes are connected to the cavity.

[0006] Preferably, the driving mechanism includes a driving cavity arranged at the upper end of the functional shell, a baffle 1 is provided at the upper end of the driving cavity, a large gear is provided on the rear side of the driving cavity, the large gear is fixedly connected to the motor shaft, a plurality of small gears are evenly distributed circumferentially on the large gear, a driving sleeve is provided on the front side of the driving cavity, fixing holes are penetrated at the front and rear ends of the driving sleeve, the fixing holes are fixedly connected to the motor shaft, a speed regulating bevel gear 1 is fixedly provided on the outside of the driving sleeve, the speed regulating bevel gear 1 is connected to a plurality of speed regulating bevel gears 2 through a speed regulating assembly, and the plurality of speed regulating bevel gears 2 are evenly distributed circumferentially around the speed regulating bevel gear 1 as the center.

[0007] Preferably, the speed regulating assembly includes an adjusting gear slidably arranged between a speed regulating bevel gear 1 and a plurality of speed regulating bevel gears 2, and the adjusting gears are respectively meshed with the speed regulating bevel gear 1 and the speed regulating bevel gear 2, the adjusting gear is rotatably connected to the control block 1 through a rotating shaft, the control block 1 is movably connected to the control block 2, the control block 2 is fixedly connected to the control block 3, the control block 3 passes through the front end of the driving cavity and is fixedly connected to the horizontal section of the control plate, the vertical section of the control plate is threadedly connected to the screw, and the screw is rotatably connected to the front end of the functional shell.

[0008] Preferably, the heat dissipation mechanism includes a plurality of heat dissipation fans arranged in the cavity, the plurality of heat dissipation fans are arranged along the circumference of the motor, the rear portions of the plurality of heat dissipation fans are fixedly connected one-to-one with a plurality of connecting shafts, the front portions of the plurality of connecting shafts penetrate the front end of the base shell and the rear end of the functional shell into the driving cavity, and the front portions of the plurality of connecting shafts are fixedly connected one-to-one with a plurality of pinion gears.

[0009] Preferably, the positioning mechanism includes a plurality of positioning suction cups, which are correspondingly distributed at the top corners of the functional shell, the plurality of positioning suction cups are fixedly connected to the cylindrical sections of the plurality of threaded rods in a one-to-one correspondence, the threaded sections of the plurality of threaded rods are threadedly connected to the plurality of threaded sleeves in a one-to-one correspondence, the plurality of threaded sleeves penetrate the front end of the functional shell into the driving cavity, and the plurality of threaded sleeves are fixedly connected to the plurality of speed regulating bevel gears in a one-to-one correspondence.

[0010] Preferably, the dust-proof mechanism comprises a dust cover, the front and rear ends of the dust cover are penetrated by through holes for the drill rod to pass through, the outside of the dust cover is fixedly connected to a plurality of connecting plates, the plurality of connecting plates are fixedly connected to the cylindrical sections of the plurality of threaded rods in a one-to-one correspondence, the lower end of the dust cover is connected with a dust collecting pipe, the dust collecting pipe is connected with the front side of the dust collecting chamber, the rear side of the dust collecting chamber is connected with the air inlet pipe, the dust collecting chamber is arranged at the lower end of the dust collecting shell, the dust collecting shell is fixedly arranged at the lower end of the functional shell, a baffle 2 is provided on the lower side of the dust collecting chamber, an isolation net is fixedly provided between the left and right ends of the dust collecting chamber, a cleaning block is correspondingly provided at the front end of the isolation net, the cleaning block is fixedly connected to the pushing block 2, the pushing block 2 penetrates the upper end of the dust collecting shell and the lower end of the functional shell into the driving chamber and is rotatably connected to the movable groove at the lower end of the pushing block, the pushing block 1 is eccentrically connected to the disc, and the end of the disc away from the pushing block 1 is fixedly connected to the connecting shaft connected to the pinion at the lowermost side.

[0011] Preferably, a first handle is provided at the lower end of the base shell, and a second handle is provided at the lower end of the baffle plate.

[0012] Preferably, it also includes an anti-deflection mechanism, which includes positioning holes symmetrically arranged at the left and right ends of the power head, the positioning holes are connected to the mounting groove, the positioning holes correspond to the cylindrical section of the positioning rod, and the cylindrical section of the positioning rod contacts the drill rod, the threaded section of the positioning rod is threadedly connected to the threaded block, the upper end of the threaded block is fixedly connected to the connecting arc block 1, the lower end of the threaded block is slidingly connected to the connecting arc block 2, and the lower end of the threaded block is fixedly connected to the fixed block, the fixed block is fixedly connected to the spring, the spring is fixedly connected to the connecting arc block 2, the connecting arc block 2 is rotatably arranged at the front end of the functional shell, and the central axis of the connecting arc block 2 coincides with the central axis of the drill rod, and a contact block is provided at the end of the left positioning rod away from the power head, the contact block corresponds to the contact switch, the contact switch is electrically connected to the motor through the controller, and the contact switch is fixedly arranged on the left side of the front end of the functional shell.

[0013] A method for using an impact drill for building maintenance and renovation comprises the following steps: Step 1: Before drilling, first control the motor to reverse, the motor drives the positioning mechanism to connect with the working surface through the driving mechanism, and at the same time, the positioning mechanism drives the dustproof mechanism to contact with the target drilling position of the working surface; Step 2: After the positioning mechanism is connected to the working surface and the dust-proof mechanism is in contact with the target drilling position of the working surface, the motor is controlled to rotate forward so that the motor drives the drill rod to rotate; Step 3: Apply thrust to the drill rod by operating handle 1 and handle 2, so as to drive the drill rod to rotate and move toward the drilling position to complete the drilling purpose.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The positioning mechanism is connected to the working surface by an adsorption method, so that the impact drill for building maintenance and renovation of the present invention and the working surface have a certain connection effect, thereby reducing the impact of the vibration of the impact drill for building maintenance and renovation of the present invention on the operator during the drilling process, reducing the force required by the operator to operate the impact drill for building maintenance and renovation of the present invention, and playing a labor-saving role; 2. The dust-proof mechanism can absorb the dust generated during the drilling process to prevent the dust from affecting the health of the operator; 3. When the motor rotates forward, the positioning mechanism moves in the direction away from the drilling position. Therefore, during the drilling process, the moving directions of the positioning mechanism and the drill rod are opposite, so that the moving speed of the positioning mechanism is the same as the feed speed required by the drill rod. When the drill rod moves with the impact drill for building maintenance and renovation of the present invention, the positioning mechanism and the working surface can always remain connected. The relative movement between the positioning mechanism and the drill rod guides the movement of the drill rod, which is beneficial to improving the drilling accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 The structure of the present invention is schematically shown Figure 1 ; Figure 2 The structure of the present invention is schematically shown Figure 2 ; Figure 3 It is a schematic diagram of the internal structure of the base shell of the present invention; Figure 4 It is a schematic diagram of the internal structure of the driving chamber of the present invention; Figure 5 It is a schematic diagram of the connection structure of the driving mechanism of the present invention; Figure 6 It is a schematic diagram of the structure of the speed regulating assembly of the present invention; Figure 7 The dust-proof mechanism, heat dissipation mechanism and anti-deflection mechanism of the present invention are schematically shown in FIG. Figure 1 ; Figure 8 The dust-proof mechanism, heat dissipation mechanism and anti-deflection mechanism of the present invention are schematically shown in FIG. Figure 2 ; Fig. 9 It is a schematic structural diagram of the anti-deflection mechanism of the present invention.

[0016] In the figure: 1, base shell; 2, handle 1; 3, handle 2; 4, functional shell; 5, dust collection shell; 6, power head; 7, drill rod; 8, positioning suction cup; 9, threaded sleeve; 10, threaded rod; 11, speed regulating bevel gear 2; 12, adjusting gear; 13, speed regulating bevel gear 1; 14, driving sleeve; 15, large gear; 16, connecting shaft; 17, cooling fan; 18, control board; 19, screw; 20, control block 2; 21, control block 1; 22, control block 3; 23, small gear; 24, Fixing hole; 25, dust cover; 26, driving chamber; 27, heat dissipation hole; 28, air inlet pipe; 29, disc; 30, pushing block 1; 31, pushing block 2; 32, movable groove; 33, dust collecting chamber; 34, isolation net; 35, cleaning block; 36, dust collecting pipe; 37, connecting arc block 2; 38, through hole; 39, baffle 1; 40, motor; 41, connecting arc block 1; 42, threaded block; 43, positioning rod; 44, connecting plate; 45, contact switch; 46, fixing block; 47, spring. DETAILED DESCRIPTION

[0017] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0018] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions and technical features between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0019] The present invention provides the following embodiments Example 1

[0020] The embodiment of the present invention provides an impact drill for building maintenance and renovation, such as Figure 1-Figure 9As shown, it includes a base shell 1, a functional shell 4 is fixedly provided at the front end of the base shell 1, a motor 40 is fixedly provided inside the base shell 1, a motor shaft of the motor 40 passes through the functional shell 4 and is fixedly connected to the rear end of the power head 6, the rear end of the power head 6 is rotatably connected to the functional shell 4, a mounting groove is provided at the front end of the power head 6, the mounting groove is used to install the drill rod 7, a driving mechanism connected to the motor shaft is provided inside the functional shell 4, the driving mechanism is respectively connected to the heat dissipation mechanism and the positioning mechanism, the heat dissipation mechanism is arranged inside the base shell 1, the positioning mechanism is arranged at the front end of the functional shell 4, and the positioning mechanism is connected to the dustproof mechanism, the dustproof mechanism is connected to the heat dissipation mechanism, and the dustproof mechanism is installed on the functional shell 4.

[0021] The beneficial effects of the above technical solution are: Before the drilling work, the motor 40 is first controlled to reverse, and the motor 40 drives the positioning mechanism to connect with the working surface through the driving mechanism. The positioning mechanism and the working surface are connected in an adsorption manner, which can make the impact drill for building maintenance and renovation of the present invention and the working surface have a certain connection effect. Since the impact drill for building maintenance and renovation of the present invention will produce a certain vibration effect when drilling, the positioning mechanism can reduce the impact of the vibration on the operator, reduce the force required by the operator when operating the impact drill for building maintenance and renovation of the present invention, and play a labor-saving role. At the same time, the positioning mechanism drives the dust-proof mechanism to contact the target drilling position of the working surface, and then controls the motor 40 to rotate forward, so that the motor 40 drives the drill rod 7 to rotate. Finally, the operator applies thrust to the impact drill for building maintenance and renovation of the present invention, thereby driving the drill rod 7 to move toward the drilling position while rotating to complete the drilling purpose. The setting of the dust-proof mechanism can The positioning mechanism can absorb the dust generated during the drilling process to prevent the dust from affecting the health of the operator. When the motor 40 rotates forward, the positioning mechanism moves in the direction away from the drilling position. Therefore, the moving directions of the positioning mechanism and the drill rod 7 are opposite during the drilling process, so that the moving speed of the positioning mechanism is the same as the feed speed required by the drill rod 7. When the drill rod 7 moves with the impact drill for building maintenance and renovation of the present invention, the positioning mechanism and the working surface can always remain connected. The relative movement between the positioning mechanism and the drill rod guides the movement of the drill rod 7, which is beneficial to improving the drilling accuracy. The setting of the positioning mechanism solves the problem that when the operator applies thrust to the impact drill, the vibration generated by the impact drill will be directly fed back to the operator, requiring the operator to use greater force to hold the impact drill to ensure the stability of the drilling, and the vibration generated by the impact drill is prone to cause deviations in the drilling, affecting the drilling accuracy. Example 2

[0022] On the basis of Example 1, Figure 1-Figure 6As shown, a cavity is provided inside the base shell 1, in which a motor 40 is fixedly provided, a plurality of heat dissipation holes 27 are provided at the rear end of the base shell 1, and the plurality of heat dissipation holes 27 are connected to the cavity, and an air intake pipe 28 is provided at the left and right ends of the base shell 1, respectively, and the air intake pipe 28 is connected to the cavity; The driving mechanism includes a driving chamber 26 disposed at the upper end of the functional shell 4, a baffle plate 39 is disposed at the upper end of the driving chamber 26, a large gear 15 is disposed at the rear side of the driving chamber 26, the large gear 15 is fixedly connected to the motor shaft, a plurality of small gears 23 are evenly distributed circumferentially on the large gear 15, a driving sleeve 14 is disposed at the front side of the driving chamber 26, a fixing hole 24 is penetrated at the front and rear ends of the driving sleeve 14, the fixing hole 24 is fixedly connected to the motor shaft, a speed regulating bevel gear 13 is fixedly disposed on the outside of the driving sleeve 14, the speed regulating bevel gear 13 is connected to a plurality of speed regulating bevel gears 2 11 through a speed regulating assembly, and the plurality of speed regulating bevel gears 2 11 are evenly distributed circumferentially with the speed regulating bevel gear 1 13 as the center; The speed regulating assembly includes an adjusting gear 12 which is slidably arranged between a speed regulating bevel gear 13 and a plurality of speed regulating bevel gears 2 11, the adjusting gear 12 is respectively meshed with the speed regulating bevel gear 13 and the speed regulating bevel gear 2 11, the adjusting gear 12 is rotationally connected to a control block 1 21 through a rotating shaft, the control block 1 21 is movably connected to a control block 20, the control block 20 is fixedly connected to a control block 3 22, the control block 3 22 passes through the front end of the driving cavity 26 and is fixedly connected to the horizontal section of the control board 18, the vertical section of the control board 18 is threadedly connected to a screw 19, and the screw 19 is rotationally connected to the front end of the functional shell 4.

[0023] The beneficial effects of the above technical solution are: The baffle plate 39 is used to block the driving cavity 26, and the baffle plate 39 and the driving cavity 26 are connected by threaded fastening, which is convenient for disassembly of the baffle plate 39. The air inlet pipe 28 is connected with the heat dissipation hole 27 through the cavity, so that the outside air can enter the cavity through the air inlet pipe 28, and then carry the heat generated during the operation of the motor 40 and flow out through the heat dissipation hole 27, so as to achieve the purpose of heat dissipation of the motor 40. The setting of the driving mechanism, when the motor 40 rotates, the motor shaft of the motor 40 drives the large gear 15 and the driving sleeve 14 to rotate, the large gear 15 drives the plurality of small gears 23 to rotate synchronously, the driving sleeve 14 drives the speed regulating bevel gear 13 to rotate, the speed regulating bevel gear 13 drives the plurality of speed regulating bevel gears 2 11 to rotate synchronously through the speed regulating assembly, the number of the plurality of speed regulating bevel gears 2 11 is set to four, so that the four speed regulating bevel gears 2 11 are correspondingly distributed at the top angles of the driving cavity 26, and the setting of the speed regulating assembly can synchronously adjust the rotation speeds of the plurality of speed regulating bevel gears 2 11; When adjusting the speed of the plurality of speed regulating bevel gears 2 11, the screw 19 is rotated, the screw 19 drives the control plate 18 to move forward and backward, the control plate 18 drives the control blocks 3 22 connected on its upper and lower sides to move forward and backward, the control block 3 22 drives the control block 2 20 to move forward and backward, and when the control block 2 20 moves forward and backward, it can drive the control block 1 21 connected on its left and right sides to move, thereby driving the four adjusting gears 12 to move synchronously. Specifically, the control block 1 21 and the control block 2 20 are movably connected in a manner that a slide is set between the control block 1 21 and the control block 2 20, and the slide slides left and right along the control block 2 20. The control block 21 slides up and down along the slide seat, so that the control block 21 drives the adjusting gear 12 to move freely in three-dimensional space, ensuring that the control block 21 can drive the adjusting gear 12 to slide between the speed regulating bevel gear 13 and the speed regulating bevel gear 2 11, thereby changing the meshing ratio among the adjusting gear 12, the speed regulating bevel gear 13 and the speed regulating bevel gear 2 11, and realizing the purpose of synchronously adjusting the speeds of several speed regulating bevel gears 2 11 when the speed of the speed regulating bevel gear 13 remains unchanged, and the inclined meshing end faces on the speed regulating bevel gear 13 and the speed regulating bevel gear 2 11 remain parallel. Example 3

[0024] On the basis of Example 2, Figure 1-Figure 8 As shown, the heat dissipation mechanism includes a plurality of heat dissipation fans 17 arranged in the cavity, the plurality of heat dissipation fans 17 are arranged along the circumference of the motor 40, the rear portions of the plurality of heat dissipation fans 17 are fixedly connected with the plurality of connecting shafts 16 in a one-to-one correspondence, the front portions of the plurality of connecting shafts 16 penetrate the front end of the base shell 1 and the rear end of the functional shell 4 and enter the driving cavity 26, and the front portions of the plurality of connecting shafts 16 are fixedly connected with the plurality of pinions 23 in a one-to-one correspondence; The positioning mechanism includes a plurality of positioning suction cups 8, which are correspondingly distributed at the top corners of the functional shell 4, and the plurality of positioning suction cups 8 are fixedly connected to the cylindrical sections of the plurality of threaded rods 10 in a one-to-one correspondence, and the threaded sections of the plurality of threaded rods 10 are threadedly connected to the plurality of threaded sleeves 9 in a one-to-one correspondence, and the plurality of threaded sleeves 9 penetrate the front end of the functional shell 4 and enter the driving cavity 26, and the plurality of threaded sleeves 9 are fixedly connected to the plurality of speed regulating bevel gears 11 in a one-to-one correspondence.

[0025] The beneficial effects of the above technical solution are: When the plurality of pinions 23 rotate synchronously, the plurality of connecting shafts 16 can be driven to rotate synchronously, and the plurality of connecting shafts 16 drive the plurality of cooling fans 17 to rotate synchronously. When the cooling fans 17 rotate, the outside air can enter the cavity through the air inlet pipe 28, and then carry the heat generated during the operation of the motor 40 and flow out through the cooling holes 27, thereby accelerating the flow rate of the air flowing through the surface of the motor 40 and improving the cooling effect of the motor 40. There are four positioning suction cups 8. When the motor 40 is reversed, the speed regulating bevel gears 11 rotate in the opposite direction to drive the threaded sleeves 9 to rotate in the opposite direction synchronously. When the threaded sleeves 9 rotate in the opposite direction, the threaded sections of the threaded rods 10 are driven to move forward. The threaded rods 10 drive the positioning suction cups 8 to move forward synchronously until the positioning suction cups 8 move to the working surface and are pressed into contact with the working surface, thereby adsorbing the positioning suction cups 8 to the working surface. The positioning suction cups 8 are driven by the motor 40 to be pressed into contact with the working surface, without manual operation, saving manpower, and can improve the adsorption force between the positioning suction cups 8 and the working surface compared with manpower. The purpose of connecting the impact drill for building maintenance and renovation of the present invention with the working surface is achieved. When the motor 40 rotates forward, the threaded sleeve rotates forward. At this time, the threaded rod 10 has a tendency to move backward, that is, it has a tendency to move in the direction away from the working surface. Since the positioning suction cup 8 is adsorbed and connected with the working surface, the impact drill for building maintenance and renovation of the present invention also has a tendency to move in the direction close to the working surface. At the same time, when drilling, the impact drill for building maintenance and renovation of the present invention needs to be controlled to drive the drill rod 7 to move toward the working surface. The movement direction of the drill rod 7 and the threaded sleeve 9 along the front and rear directions is the same, so in this process The relative movement between the threaded rod 10 and the threaded sleeve 9 can guide the impact drill for building maintenance and renovation of the present invention, and the feed speed of the impact drill for building maintenance and renovation of the present invention can be changed by controlling the operation of the speed regulating component to ensure that the positioning suction cup 8 is always adsorbed on the working surface, thereby ensuring the drilling accuracy of the impact drill for building maintenance and renovation of the present invention. When the adsorption between the positioning suction cup 8 and the working surface is large enough, the relative movement speed between the threaded rod 10 and the threaded sleeve 9 can also be made slightly greater than the feed speed required by the drill rod 7. At this time, since the positioning suction cup 8 cannot be separated from the working surface, the threaded rod 10 will have a certain traction effect on the threaded sleeve 9, thereby having a certain traction effect on the impact drill for building maintenance and renovation of the present invention and the drill rod 7 connected thereto through the threaded sleeve 9, further saving effort for the operator. Optionally, a sealed suction pipe can be connected between the positioning suction cup 8 and the air intake pipe 28. During the drilling process, the air intake pipe 28 has an air suction effect, so that the air intake pipe 28 can suck the air between the positioning suction cup 8 and the working surface connected thereto through the sealed suction pipe, which is conducive to a stable connection between the positioning suction cup 8 and the working surface. Example 4

[0026] On the basis of Example 3, Figure 1-Figure 8As shown, the dust-proof mechanism includes a dust cover 25, and the front and rear ends of the dust cover 25 are penetrated with through holes 38 for the drill rod 7 to pass through. The outside of the dust cover 25 is fixedly connected to a plurality of connecting plates 44, and the plurality of connecting plates 44 are fixedly connected to the cylindrical sections of the plurality of threaded rods 10 in a one-to-one correspondence. The lower end of the dust cover 25 is connected to a dust collecting pipe 36, and the dust collecting pipe 36 is connected to the front side of the dust collecting chamber 33, and the rear side of the dust collecting chamber 33 is connected to the air inlet pipe 28. The dust collecting chamber 33 is arranged at the lower end of the dust collecting shell 5, and the dust collecting shell 5 is fixedly arranged at the lower end of the functional shell 4. A baffle plate 2 is provided at the lower side of the cavity 33, and an isolation net 34 is fixedly provided between the left and right ends of the dust collecting cavity 33. A cleaning block 35 is correspondingly provided at the front end of the isolation net 34. The cleaning block 35 is fixedly connected to the push block 2 31. The push block 2 31 penetrates the upper end of the dust collecting shell 5 and the lower end of the functional shell 4 into the driving cavity 26 and is rotatably connected to the movable groove 32 at the lower end of the push block 1 30. The push block 1 30 is eccentrically connected to the disc 29, and one end of the disc 29 away from the push block 1 30 is fixedly connected to the connecting shaft 16 connected to the lowermost pinion 23. A handle 1 2 is provided at the lower end of the base shell 1, and a handle 2 3 is provided at the lower end of the baffle plate 2.

[0027] The beneficial effects of the above technical solution are: The second baffle plate is used to block the dust collecting chamber 33, and the second baffle plate and the dust collecting chamber 33 are connected by a threaded fastening method, which is convenient for disassembly of the second baffle plate. The arrangement of the plurality of connecting plates 44 allows the plurality of threaded sleeves 9 to rotate synchronously while the plurality of threaded rods 10 can only move forward and backward, so as to prevent the threaded sleeves 9 from driving the threaded rods 10 to rotate, and the forward and backward movement of the threaded rods 10 can drive the dust cover 25 to move forward and backward synchronously. After the positioning suction cup 8 is adsorbed and connected to the working surface, the dust cover 25 just contacts the target punching position of the working surface, and the dust cover 25 always keeps in contact with the target punching position of the working surface during the punching process. The dust cover 25 is made of glass material, which is convenient for the operator to observe the punching situation in real time. After the dust collecting chamber 33 is connected to the air inlet pipe 28, the air inlet pipe 28 sucks the dust and air generated by the punching into the dust collecting chamber 33 through the dust collecting chamber 33 and the dust collecting pipe 36. The dust collecting pipe 36 adopts a hose, so that the dust cover 25 can move freely along the front and rear directions. The setting of the isolation net 34 separates dust from air to prevent dust from entering the air intake pipe 28 along with the air and affecting the operation of the motor 40. In this process, as the plurality of pinions 23 rotate, the connecting shaft 16 connected to the pinion 23 at the bottom drives the disc 29 to rotate. The disc 29 drives the pushing block 2 31 to reciprocate up and down through the pushing block 1 30. The pushing block 2 31 drives the cleaning block 35 to move up and down along the front end of the isolation net 34, that is, the end of the isolation net 34 close to the dust collecting pipe 36. The cleaning block 35 scrapes off the dust attached to the front end of the isolation net 34 and makes it fall on the bottom of the dust collecting chamber 33 to prevent the isolation net 34 from being blocked and affecting the air intake of the air intake pipe 28, and finally affecting the heat dissipation effect of the motor 40. When the dust accumulates to a certain extent in the dust collecting chamber 33, the dust can be discharged by removing the baffle 2. The setting of the grip 1 2 and the grip 2 3 facilitates the operator to operate the impact drill for building maintenance and renovation of the present invention; The above-mentioned positioning mechanism, heat dissipation mechanism and dust prevention mechanism work synchronously with the motor 40, and can also realize positioning shock absorption, heat dissipation and dust removal functions while drilling, thereby increasing the functionality of the impact drill for building maintenance and renovation of the present invention, and there is no need to set up multiple electrical components for driving, thus avoiding the cumbersome operation brought about by controlling multiple electrical components to achieve the target function. Example 5

[0028] On the basis of Example 4, Figure 1-Figure 9As shown, it also includes an anti-deflection mechanism, which includes positioning holes symmetrically arranged at the left and right ends of the power head 6, the positioning holes are connected to the mounting groove, the positioning holes are correspondingly matched with the cylindrical section of the positioning rod 43, and the cylindrical section of the positioning rod 43 is in contact with the drill rod 7, the threaded section of the positioning rod 43 is threadedly connected with the threaded block 42, the upper end of the threaded block 42 is fixedly connected to the connecting arc block 1 41, the lower end of the threaded block 42 is slidably connected to the connecting arc block 2 37, and the lower end of the threaded block 42 is fixedly connected to the fixed block 46, the fixed block 46 is fixedly connected to the spring 47, the spring 47 is fixedly connected to the connecting arc block 2 37, the connecting arc block 2 37 is rotatably arranged at the front end of the functional shell 4, and the central axis of the connecting arc block 2 37 coincides with the central axis of the drill rod 7, and a contact block is provided at the end of the left positioning rod 43 away from the power head 6, and the contact block is correspondingly in contact with the contact switch 45, the contact switch 45 is electrically connected to the motor 40 through the controller, and the contact switch 45 is fixedly arranged on the left side of the front end of the functional shell 4.

[0029] The beneficial effects of the above technical solution are: The setting of the threaded block 42 allows the positioning rod 43 to move left and right to contact the drill rod 7 by rotating the positioning rod 43. When the power head 6 rotates, the connecting arc block 2 37 is driven to rotate, and the connecting arc block 2 37 drives the threaded blocks 42 and the positioning rod 43 on the left and right sides to rotate. Due to the setting of the connecting arc block 1 41, the centrifugal forces generated by the threaded blocks 42 and the positioning rod 43 on the left and right sides during the rotation process offset each other. If the drill rod 7 in the installation groove deviates, it will drive the positioning rods 43 on the left and right sides to deviate to one side. The positioning rods 43 on the left and right sides drive the threaded block 42 to deviate to one side, and the threaded block 42 slides along the connecting arc block 2 37, and the spring 47 is deformed. At this time, when the connecting arc block 2 37 continues to rotate with the power head 6, the left and right sides The rotation trajectory of the positioning rod 43 on the side is offset. If the positioning rod 43 on the left side contacts the contact switch 45, the contact switch 45 is activated, indicating that the offset value of the drill rod 7 in the installation slot exceeds the preset range. The contact switch 45 controls the motor 40 to stop working through the controller to avoid continuing the drilling work and affecting the drilling effect. At this time, the operator needs to re-install and tighten the drill rod 7, set the anti-deflection mechanism, and monitor the connection status of the drill rod 7 and the power head 6, which further improves the drilling accuracy of the impact drill used for building maintenance and renovation of the present invention. The above-mentioned contact block, contact switch 45 and controller all use existing equipment, and the signal transmission between the contact switch 45, the controller and the motor 40 all uses existing technology, which will not be repeated in the present invention. Example 6

[0030] Based on Example 1, a method for using an impact drill for building maintenance and renovation includes the following steps: Step 1: Before the drilling operation, the motor 40 is first controlled to reverse, and the motor 40 drives the positioning mechanism to connect with the working surface through the driving mechanism, and at the same time, the positioning mechanism drives the dustproof mechanism to contact with the target drilling position of the working surface; Step 2: After the positioning mechanism is connected to the working surface and the dustproof mechanism is in contact with the target drilling position of the working surface, the motor 40 is controlled to rotate forward so that the motor 40 drives the drill rod 7 to rotate; Step 3: Apply thrust to the drill rod 7 by operating the handle 1 2 and the handle 2 3, so as to drive the drill rod 7 to rotate and move toward the drilling position to complete the drilling purpose.

[0031] 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 equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An impact drill for building maintenance and renovation, characterized in that: The invention comprises a base shell (1), a functional shell (4) is fixedly provided at the front end of the base shell (1), a motor (40) is fixedly provided inside the base shell (1), a motor shaft of the motor (40) passes through the functional shell (4) and is fixedly connected to the rear end of a power head (6), the rear end of the power head (6) is rotatably connected to the functional shell (4), a mounting groove is provided at the front end of the power head (6), the mounting groove is used to mount a drill rod (7), a driving mechanism connected to the motor shaft is provided inside the functional shell (4), the driving mechanism is respectively connected to a heat dissipation mechanism and a positioning mechanism, the heat dissipation mechanism is arranged inside the base shell (1), the positioning mechanism is arranged at the front end of the functional shell (4), the positioning mechanism is connected to a dust prevention mechanism, the dust prevention mechanism is connected to the heat dissipation mechanism, and the dust prevention mechanism is mounted on the functional shell (4).

2. The impact drill for building maintenance and renovation according to claim 1, characterized in that: A cavity is provided inside the base shell (1), a motor (40) is fixedly provided in the cavity, a plurality of heat dissipation holes (27) are provided at the rear end of the base shell (1), the plurality of heat dissipation holes (27) are communicated with the cavity, and air intake pipes (28) are provided at the left and right ends of the base shell (1), respectively, the air intake pipes (28) are communicated with the cavity.

3. The impact drill for building maintenance and renovation according to claim 2, characterized in that: The drive mechanism comprises a drive chamber (26) arranged at the upper end of a functional housing (4), a baffle plate 1 (39) being arranged at the upper end of the drive chamber (26), a large gear (15) being arranged at the rear side of the drive chamber (26), the large gear (15) being fixedly connected to a motor shaft, a plurality of small gears (23) being evenly arranged circumferentially on the large gear (15), a drive sleeve (14) being arranged at the front side of the drive chamber (26), fixing holes (24) being penetrated at the front and rear ends of the drive sleeve (14), the fixing holes (24) being fixedly connected to the motor shaft, a speed regulating bevel gear 1 (13) being fixedly arranged at the outside of the drive sleeve (14), the speed regulating bevel gear 1 (13) being connected to a plurality of speed regulating bevel gears 2 (11) via a speed regulating assembly, and the plurality of speed regulating bevel gears 2 (11) being evenly arranged circumferentially around the speed regulating bevel gear 1 (13).

4. The impact drill for building maintenance and renovation according to claim 3, characterized in that: The speed regulating assembly comprises an adjusting gear (12) slidably arranged between a speed regulating bevel gear (13) and a plurality of speed regulating bevel gears (11), and the adjusting gear (12) is respectively meshed with the speed regulating bevel gear (13) and the speed regulating bevel gear (11), the adjusting gear (12) is rotationally connected to a control block (21) via a rotating shaft, the control block (21) is movably connected to a control block (20), the control block (20) is fixedly connected to a control block (22), the control block (22) passes through the front end of the driving cavity (26) and is fixedly connected to the horizontal section of the control plate (18), the vertical section of the control plate (18) is threadedly connected to a screw rod (19), and the screw rod (19) is rotationally connected to the front end of the functional housing (4).

5. The impact drill for building maintenance and renovation according to claim 4, characterized in that: The heat dissipation mechanism comprises a plurality of heat dissipation fans (17) arranged in the cavity, the plurality of heat dissipation fans (17) being arranged along the circumference of the motor (40), the rear portions of the plurality of heat dissipation fans (17) being fixedly connected to the plurality of connecting shafts (16) in a one-to-one correspondence, the front portions of the plurality of connecting shafts (16) penetrating the front end of the base shell (1) and the rear end of the functional shell (4) into the drive cavity (26), and the front portions of the plurality of connecting shafts (16) being fixedly connected to the plurality of pinions (23) in a one-to-one correspondence.

6. The impact drill for building maintenance and renovation according to claim 5, characterized in that: The positioning mechanism comprises a plurality of positioning suction cups (8), the plurality of positioning suction cups (8) being correspondingly distributed at the top corners of the functional shell (4), the plurality of positioning suction cups (8) being fixedly connected to the cylindrical sections of the plurality of threaded rods (10) in a one-to-one correspondence, the threaded sections of the plurality of threaded rods (10) being threadedly connected to the plurality of threaded sleeves (9) in a one-to-one correspondence, the plurality of threaded sleeves (9) penetrating the front end of the functional shell (4) into the driving cavity (26), and the plurality of threaded sleeves (9) being fixedly connected to the plurality of speed regulating bevel gears (11) in a one-to-one correspondence.

7. The impact drill for building maintenance and renovation according to claim 6, characterized in that: The dustproof mechanism comprises a dustproof cover (25), the front and rear ends of the dustproof cover (25) are penetrated by through holes (38) for the drill rod (7) to pass through, the outside of the dustproof cover (25) is fixedly connected to a plurality of connecting plates (44), the plurality of connecting plates (44) are fixedly connected to the cylindrical sections of the plurality of threaded rods (10) in a one-to-one correspondence, the lower end of the dustproof cover (25) is communicated with a dust collecting pipe (36), the dust collecting pipe (36) is communicated with the front side of the dust collecting chamber (33), the rear side of the dust collecting chamber (33) is communicated with the air inlet pipe (28), the dust collecting chamber (33) is arranged at the lower end of the dust collecting shell (5), the dust collecting shell (5) is fixedly arranged at the lower end of the functional shell (4), and the dust collecting chamber ( A baffle plate 2 is provided at the lower side of the dust collecting chamber (33), an isolation net (34) is fixedly provided between the left and right ends of the dust collecting chamber (33), a cleaning block (35) is correspondingly provided at the front end of the isolation net (34), the cleaning block (35) is fixedly connected to the second pushing block (31), the second pushing block (31) penetrates the upper end of the dust collecting shell (5) and the lower end of the functional shell (4) into the driving chamber (26) and is rotatably connected to the movable groove (32) at the lower end of the pushing block 1 (30), the pushing block 1 (30) is eccentrically connected to the disc (29), and one end of the disc (29) away from the pushing block 1 (30) is fixedly connected to the connecting shaft (16) connected to the lowermost pinion (23).

8. The impact drill for building maintenance and renovation according to claim 7, characterized in that: A handle 1 (2) is provided at the lower end of the base shell (1), and a handle 2 (3) is provided at the lower end of the baffle plate 2.

9. The impact drill for building maintenance and renovation according to claim 1, characterized in that: The drill bit (44) further comprises an anti-deflection mechanism, the anti-deflection mechanism comprising positioning holes symmetrically arranged at the left and right ends of the power head (6), the positioning holes being connected to the mounting groove, the positioning holes correspondingly matching with the cylindrical section of the positioning rod (43), the cylindrical section of the positioning rod (43) being in contact with the drill rod (7), the threaded section of the positioning rod (43) being threadedly connected to the threaded block (42), the upper end of the threaded block (42) being fixedly connected to the first connecting arc block (41), the lower end of the threaded block (42) being slidably connected to the second connecting arc block (37), and the lower end of the threaded block (42) being fixedly connected to the fixing block (46), The fixing block (46) is fixedly connected to the spring (47), the spring (47) is fixedly connected to the second connecting arc block (37), the second connecting arc block (37) is rotatably arranged at the front end of the functional shell (4), and the central axis of the second connecting arc block (37) coincides with the central axis of the drill rod (7), and a contact block is provided at one end of the left positioning rod (43) away from the power head (6), the contact block is in corresponding contact with the contact switch (45), the contact switch (45) is electrically connected to the motor (40) through the controller, and the contact switch (45) is fixedly arranged at the left side of the front end of the functional shell (4).

10. A method for using the impact drill for building maintenance and renovation as claimed in claim 8, characterized in that: The following steps are involved: Step 1: Before the drilling operation, the motor (40) is first controlled to rotate in reverse, and the motor (40) drives the positioning mechanism to connect with the working surface through the driving mechanism, and at the same time, the positioning mechanism drives the dust prevention mechanism to contact with the target drilling position of the working surface; Step 2: After the positioning mechanism is connected to the working surface and the dust-proof mechanism is in contact with the target drilling position of the working surface, the motor (40) is controlled to rotate forward, so that the motor (40) drives the drill rod (7) to rotate; Step 3: Apply thrust to the drill rod (7) by operating the first grip (2) and the second grip (3), so as to drive the drill rod (7) to rotate and move toward the drilling position, thereby completing the drilling purpose.

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