A device for drilling large-diameter through-wall holes in building walls

Abstract

A device for drilling large-diameter through-wall holes on the wall of a building. The base is moved to the area where the hole is required to be drilled, and the frame is driven by a frame driving mechanism to slide up and down along guide rods I and II to the height of the required hole, and then locked and fixed by a locking device. The frame is rotated relative to the base by a rotating mechanism, so that the thin-walled drill bit is directly facing the position of the required hole, and one of the three universal clamping devices is loosened. At this time, the thin-walled drill bit can realize universal adjustment of the angle through the bearing. The thin-walled drill bit is adjusted to a horizontal position by observing with a horizontal bubble ruler, and then the loosened universal clamping device is locked. The thin-walled drill bit can be clamped by a pistol drill to open the wall in a horizontal state. The thin-walled drill bit rotates in the bearing when it rotates, so the bearing effectively restricts its free movement, ensures linear feed during the opening operation, improves the accuracy and coaxiality of the hole, prevents damage to the surrounding wall, and improves the drilling efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of construction tools, and in particular to a device for opening a large-diameter through-wall hole in a building wall. Background Art

[0002] At present, large-diameter holes need to be cut in the walls of buildings for the installation of auxiliary facilities and related construction. The traditional cutting method is to manually install a thin-wall drill bit with a handheld water drill before cutting. This working method relies on the experience and skill level of the construction workers, and there are problems such as inaccurate initial centering, easy damage to the surrounding wall structure, poor coaxiality, poor levelness, high labor intensity, low construction safety, and easy occurrence of work-related injuries, which not only affects the construction efficiency but also increases the risk and work intensity of the workers. Summary of the invention

[0003] In order to overcome the deficiencies of the above technologies, the present invention provides a large-diameter through-wall hole drilling device for a building wall, which ensures that the hole is kept level during drilling and is easy to operate.

[0004] The technical solution adopted by the present invention to overcome the technical problems is:

[0005] A device for drilling a large-diameter through-wall hole in a building wall, comprising:

[0006] A base, the upper end of which is provided with a turntable for horizontal rotation via a rotating mechanism;

[0007] Guide rod I and guide rod II are respectively installed vertically on the upper end of the turntable;

[0008] The frame has sliding holes arranged in the vertical direction inside, and the upper ends of the guide rods I and II are respectively inserted into the corresponding sliding holes;

[0009] The frame driving mechanism is arranged in the frame and is used to drive the frame to slide up and down along the axial direction of the guide rods I and II;

[0010] A locking device is arranged in the frame, and when the height position of the frame is adjusted to the right position, the locking device is used to lock and fix the frame relative to the guide rod II;

[0011] An operating hole is arranged at the upper end of the base, the axis of the operating hole is perpendicular to the axes of the guide rods I and II, a bearing is arranged at the center of the operating hole, and a thin-wall drill bit is inserted into the inner hole of the bearing;

[0012] Three fan-shaped clamping blocks, the inner diameter of which matches the outer diameter of the bearing, the three fan-shaped clamping blocks are respectively in contact with the upper end, the left end and the right end of the bearing through universal clamping devices, when one universal clamping device is released so that the corresponding fan-shaped clamping block is not in contact with the outer surface of the bearing, the bearing is universally rotatably adjusted through the other two universal clamping devices; and

[0013] The bubble level is installed on the fan-shaped clamp at the upper end of the bearing.

[0014] Furthermore, the above-mentioned rotating mechanism includes a cylindrical body coaxially arranged at the lower end of the turntable, a plurality of protrusions evenly spaced along the circumferential direction at the outer end of the body, a circular hole arranged in the base and matching the outer diameter of the cylinder, and a slide rail arranged in the circular hole along the circumferential direction, the inner diameter of the slide rail matches the outer diameter of the circle formed by the protrusions, and the base is provided with a plurality of grooves matching the protrusions, and the lower ends of the grooves are connected to the slide rail.

[0015] Furthermore, the above-mentioned frame driving mechanism includes a circular hole set in the frame, an end cover fixedly installed on the outer end of the circular hole by screws, a gear rotatably installed on the end cover and located in the circular hole, and a rack set at the inner end of the guide rod I along the axial direction of the guide rod I, the gear is meshed with the rack, and the crank is connected to the gear transmission.

[0016] Furthermore, the locking device includes a threaded hole I horizontally arranged on the side of the frame, a screw rod I is screwed into the threaded hole I, the tail end of the screw rod I contacts the outer end surface of the guide rod II, and a hand wheel I is arranged at the head end of the screw rod I.

[0017] Furthermore, the universal clamping device includes a support rod, a ball head is provided at the outer end of the support rod, a threaded hole III is provided at the inner end thereof, a ball groove corresponding to the ball head is provided on the frame, the ball head is rotatably installed in the ball groove and fixed in the ball groove by a limit device, the fan-shaped clamping block is screwed into the threaded hole III by a threaded head II provided at the tail end, a threaded hole V coaxial with the ball groove is provided on the frame, the screw rod II is screwed into the threaded hole V, the inner end of the screw rod II is provided with a threaded hole II, and the outer end thereof is provided with a handwheel II, the inner end of the nylon block is provided with a spherical groove, and the outer end thereof is provided with a threaded head I, the nylon block is fixed in the threaded hole II by the threaded head I, and the ball head is in contact with the spherical groove of the nylon block.

[0018] For easy placement, the cross section of the base is an equilateral triangle structure.

[0019] In order to facilitate movement, three self-locking casters are installed at the lower end of the base.

[0020] Furthermore, the above-mentioned limiting device includes a threaded hole IV and a pressure ring arranged at the outer end of the ball groove. The pressure ring is screwed into the threaded hole IV through an external thread arranged on the outside. The inner diameter of the pressure ring is smaller than the outer diameter of the ball head, and the support rod passes through the inner hole of the pressure ring.

[0021] The beneficial effects of the present invention are as follows: the base is moved to the area where the hole is required to be drilled, and the frame is driven by the frame driving mechanism to slide up and down along the guide rods I and II to the height of the hole required to be drilled, and then it is locked and fixed by the locking device. The frame is rotated relative to the base by the rotating mechanism, so that the thin-walled drill bit is directly facing the position of the hole required to be drilled, and one of the three universal clamping devices is loosened. At this time, the thin-walled drill bit can realize universal adjustment of the angle through the bearing, and the thin-walled drill bit is adjusted to a horizontal position by observing the horizontal bubble ruler, and then the loosened universal clamping device can be locked. The thin-walled drill bit can be clamped by a pistol drill to open the wall in a horizontal state. The thin-walled drill bit rotates in the bearing when it rotates, so the bearing effectively constrains its free movement, ensures linear feed during the opening operation, improves the accuracy and coaxiality of the hole, prevents damage to the surrounding wall, and improves the drilling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the three-dimensional explosion structure of the present invention;

[0024] Figure 3 It is a three-dimensional structural schematic diagram of the fan-shaped clamping block of the present invention;

[0025] In the figure, 1. base 2. turntable 3. guide rod Ⅰ 4. rack 5. guide rod Ⅱ 6. frame 7. end cover 8. crank 9. handwheel Ⅰ 10. thin-wall drill bit 11. support rod 12. handwheel Ⅱ 13. slide rail 14. groove 15. cylinder 16. protrusion 17. round hole 18. gear 19. screw Ⅰ 20. threaded hole Ⅰ 21. bearing 22. ball head 23. screw Ⅱ 24. threaded hole Ⅱ 25. nylon block 26. threaded head Ⅰ 27. threaded hole Ⅲ 28. ball groove 29. threaded hole Ⅳ 30. pressure ring 31. fan-shaped clamp block 32. threaded head Ⅱ 33. bubble level 34. self-locking caster 35. threaded hole Ⅴ 36. operating hole. DETAILED DESCRIPTION

[0026] The following is combined with Figure 1 , Attachment Figure 2 , Attachment Figure 3 The present invention is further described.

[0027] A device for drilling a large-diameter through-wall hole in a building wall comprises: a base 1, a turntable 2 is installed on the upper end of the base 1 through a rotating mechanism for horizontal rotation; a guide rod Ⅰ 3 and a guide rod Ⅱ 5 are respectively installed vertically on the upper end of the turntable 2; a frame 6, a sliding hole is arranged inside the base 6 along the vertical direction, and the upper ends of the guide rods Ⅰ 3 and the guide rods Ⅱ 5 are respectively inserted into the corresponding sliding holes; a frame driving mechanism is arranged in the frame 6, and is used to drive the frame 6 to slide up and down along the axial direction of the guide rods Ⅰ 3 and the guide rods Ⅱ 5; a locking device is arranged in the frame 6, and when the height position of the frame 6 is adjusted to the right position, it is locked and fixed relative to the guide rods Ⅱ 5 through the locking device; an operating hole 36 is arranged at the upper end of the base 1, and the axis of the operating hole 36 is aligned with the axis of the guide rods Ⅰ 3 and the guide rods Ⅱ 5 is perpendicular to the axis of the bearing 21, the center of the operating hole 36 is provided with a bearing 21, and the thin-wall drill bit 10 is inserted into the inner hole of the bearing 21; three fan-shaped clamping blocks 31, the inner diameter of the fan-shaped clamping blocks 31 matches the outer diameter of the bearing 21, and the three fan-shaped clamping blocks 31 are respectively in contact with the upper end, the left end and the right end of the bearing 21 through a universal clamping device. When one universal clamping device is released so that the corresponding fan-shaped clamping block 31 is not in contact with the outer surface of the bearing 21, the bearing 21 is universally rotated and adjusted through the other two universal clamping devices; and a bubble level 33 is installed on the fan-shaped clamping block 31 at the upper end of the bearing 21. When in use, the base 1 is moved to the area where the hole is required to be drilled, and the frame 6 is driven by the frame driving mechanism to slide up and down along the guide rods Ⅰ 3 and guide rods Ⅱ 5 to the height of the required hole, and then locked and fixed by the locking device. The frame 6 is rotated relative to the base 1 by the rotating mechanism, so that the thin-walled drill bit 10 is facing the position of the desired hole, and one of the three universal clamping devices is loosened. At this time, the thin-walled drill bit 10 can realize universal adjustment of the angle through the bearing 21. The thin-walled drill bit 10 is adjusted to a horizontal position by observing the horizontal bubble ruler 33, and then the loosened universal clamping device is locked. The thin-walled drill bit 10 can be clamped by a pistol drill to open the wall in a horizontal state. The thin-walled drill bit 10 rotates in the bearing 21 when rotating, so the bearing 21 effectively restricts its free movement, ensures linear feed during the opening operation, improves the accuracy and coaxiality of the hole, prevents damage to the surrounding wall, and improves the drilling efficiency.

[0028] The rotating mechanism may be a structure as follows, which includes a cylindrical body 15 coaxially arranged at the lower end of the rotating disk 2, a plurality of protrusions 16 evenly spaced at the outer end of the body 15 along the circumferential direction, a circular hole arranged in the base 1 and matching the outer diameter of the body 15, and a slide rail 13 arranged in the circular hole along the circumferential direction, the inner diameter of the slide rail 13 matching the outer diameter of the circle formed by the protrusions 16, and a plurality of grooves 14 matching the protrusions 16 are arranged on the base 1, and the lower end of the groove 14 is connected to the slide rail 13. During installation, the protrusion 16 can be inserted into the groove 14 to make the protrusion 16 enter the slide rail 13, and the body 15 is inserted into the groove 14 on the base 1, and the rotating disk 2 can make the protrusion 16 rotate in the slide rail 13, so as to realize the rotation of the thin-wall drill 10 to the position facing the drilling hole.

[0029] The frame driving mechanism may be the following structure, which includes a circular hole 17 provided in the frame 6, an end cap 7 fixedly mounted on the outer end of the circular hole 17 by screws, a gear 18 rotatably mounted on the end cap 7 and located in the circular hole 17, a rack 4 provided on the inner end of the guide rod Ⅰ 3 along the axial direction of the guide rod Ⅰ 3, the gear 18 meshing with the rack 4, and the crank 8 being transmission-connected with the gear 18. The gear 18 can be conveniently driven to rotate by rotating the crank 8, and since the gear 18 meshes with the rack 4, the frame 6 is driven to slide up and down along the guide rod Ⅰ 3 and the guide rod Ⅱ 5.

[0030] The locking device may be a structure as follows, which includes a threaded hole Ⅰ 20 horizontally arranged on the side of the frame 6, a screw rod Ⅰ 19 screwed into the threaded hole Ⅰ 20, the tail end of the screw rod Ⅰ 19 contacts the outer end surface of the guide rod Ⅱ 5, and the head end of the screw rod Ⅰ 19 is provided with a hand wheel Ⅰ 9. The screw rod Ⅰ 19 can be driven to rotate by the hand wheel Ⅰ 9, so that when the height of the frame 6 is adjusted to the right position, the tail end of the screw rod Ⅰ 19 contacts the outer end surface of the guide rod Ⅱ 5, thereby locking and fixing the frame 6 and the guide rod Ⅱ 5.

[0031] The universal clamping device can be the following structure, which includes a support rod 11, a ball head 22 is provided at the outer end of the support rod 11, and a threaded hole III 27 is provided at the inner end thereof, a ball groove 28 corresponding to the ball head 22 is provided on the frame 6, the ball head 22 is rotatably installed in the ball groove 28 and is fixed in the ball groove 28 by a limiting device, a fan-shaped clamping block 31 is screwed into the threaded hole III 27 through a threaded head II 32 provided at the tail end, a threaded hole V 35 coaxial with the ball groove 28 is provided on the frame 6, a screw rod II 23 is screwed into the threaded hole V 35, a threaded hole II 24 is provided at the inner end of the screw rod II 23, and a hand wheel II 12 is provided at the outer end thereof, a spherical groove is provided at the inner end of the nylon block 25, and a threaded head I 26 is provided at the outer end thereof, and the nylon block 25 is fixed to the threaded hole II through the threaded head I 26 24, the ball head 22 is in contact with the spherical groove of the nylon block 25. Since the support rod 11 is in spherical contact with the ball groove 28 through the ball head 22, when the screw rod II 23 is rotated by the hand wheel II 12 so that the nylon block 25 and the ball head 22 are not in contact, the support rod 11 is rotated in the ball groove 28 through the ball head 22, so that the position of the fan-shaped clamping block 31 can be changed arbitrarily. When the position is determined, the hand wheel II 12 is rotated so that the spherical groove of the nylon block 25 and the ball head 22 are pressed against each other, so that the position of the ball head 22 in the ball groove 28 is locked and fixed.

[0032] The cross section of the base 1 is an equilateral triangle structure, and the triangular base 1 can be conveniently placed in the corner of a building or in a narrow area. Preferably, three self-locking casters 34 are installed at the lower end of the base 1. The self-locking casters 34 can be used to easily move the base 1 to a desired position, and the casters can be locked after moving to a desired position to achieve fixation, thereby improving the convenience of use.

[0033] The limiting device may be of the following structure, which includes a threaded hole IV 29 and a pressure ring 30 provided at the outer end of the ball groove 28, the pressure ring 30 being screwed into the threaded hole IV 29 through an external thread provided on the outer side, the inner diameter of the pressure ring 30 being smaller than the outer diameter of the ball head 22, and the support rod 11 passing through the inner hole of the pressure ring 30. The pressure ring 30 locks the ball head 22 of the support rod 11 in the ball groove 28, and the installation is simple and convenient.

Claims

1. A device for drilling large-diameter through-wall holes in building walls, characterized in that: include: A base (1) having a rotating disk (2) mounted on its upper end for horizontal rotation via a rotating mechanism; Guide rod I (3) and guide rod II (5) are respectively vertically mounted on the upper end of the turntable (2); The frame (6) has sliding holes arranged in the vertical direction, and the upper ends of the guide rods I (3) and II (5) are respectively inserted into the corresponding sliding holes; A frame driving mechanism is arranged in the frame (6) and is used to drive the frame (6) to slide up and down along the axial direction of the guide rod I (3) and the guide rod II (5); A locking device is arranged in the frame (6), and when the height position of the frame (6) is adjusted to the correct position, the frame (6) is locked and fixed relative to the guide rod II (5) through the locking device; An operating hole (36) is arranged at the upper end of the base (1), the axis of the operating hole (36) is perpendicular to the axes of the guide rods I (3) and II (5), a bearing (21) is arranged at the center of the operating hole (36), and a thin-wall drill bit (10) is inserted into the inner hole of the bearing (21); Three fan-shaped clamping blocks (31), the inner diameter of each fan-shaped clamping block (31) matches the outer diameter of the bearing (21), and the three fan-shaped clamping blocks (31) are respectively in contact with the upper end, the left end and the right end of the bearing (21) through universal clamping devices. When one universal clamping device is released so that the corresponding fan-shaped clamping block (31) is not in contact with the outer surface of the bearing (21), the bearing (21) is universally rotatably adjusted through the other two universal clamping devices; as well as A bubble level (33) is mounted on the fan-shaped clamping block (31) at the upper end of the bearing (21); The rotating mechanism comprises a cylindrical body (15) coaxially arranged at the lower end of the turntable (2), a plurality of protrusions (16) evenly spaced along the circumferential direction and arranged at the outer end of the body (15), a circular hole arranged in the base (1) and matching the outer diameter of the body (15), and a slide rail (13) arranged in the circular hole along the circumferential direction, the inner diameter of the slide rail (13) matching the outer diameter of the circle formed by the protrusions (16), the base (1) is provided with a plurality of grooves (14) matching the protrusions (16), and the lower ends of the grooves (14) are connected to the slide rail (13); The frame driving mechanism comprises a circular hole (17) arranged in the frame (6), an end cover (7) fixedly mounted on the outer end of the circular hole (17) by screws, a gear (18) rotatably mounted on the end cover (7) and located in the circular hole (17), and a rack (4) arranged on the inner end of the guide rod I (3) along the axial direction of the guide rod I (3), the gear (18) meshing with the rack (4), and the crank (8) being transmission-connected with the gear (18); The locking device comprises a threaded hole I (20) horizontally arranged on the side of the frame (6), a screw rod I (19) is screwed into the threaded hole I (20), the tail end of the screw rod I (19) contacts the outer end surface of the guide rod II (5), and the head end of the screw rod I (19) is provided with a hand wheel I (9); The universal clamping device comprises a support rod (11), the outer end of the support rod (11) is provided with a ball head (22), the inner end of the support rod (11) is provided with a threaded hole III (27), the frame (6) is provided with a ball groove (28) corresponding to the ball head (22), the ball head (22) is rotatably installed in the ball groove (28) and is fixed in the ball groove (28) through a limit device, the fan-shaped clamping block (31) is screwed into the threaded hole III (27) through a threaded head II (32) provided at the rear end, and the frame (6) is provided with a A threaded hole V (35) is coaxial with the ball groove (28), and the screw rod II (23) is screwed into the threaded hole V (35). The inner end of the screw rod II (23) is provided with a threaded hole II (24), and the outer end thereof is provided with a hand wheel II (12). The inner end of the nylon block (25) is provided with a spherical groove, and the outer end thereof is provided with a threaded head I (26). The nylon block (25) is fixed in the threaded hole II (24) through the threaded head I (26), and the ball head (22) is in contact with the spherical groove of the nylon block (25).

2. The device for drilling large-diameter holes in building walls according to claim 1, characterized in that: The cross section of the base (1) is an equilateral triangle structure.

3. The device for drilling large-diameter holes in building walls according to claim 1, characterized in that: Three self-locking casters (34) are installed at the lower end of the base (1).

4. The device for drilling large-diameter holes in building walls according to claim 1, characterized in that: The limiting device comprises a threaded hole IV (29) and a pressure ring (30) arranged at the outer end of the ball groove (28); the pressure ring (30) is screwed into the threaded hole IV (29) via an external thread arranged on the outer side; the inner diameter of the pressure ring (30) is smaller than the outer diameter of the ball head (22); and the support rod (11) passes through the inner hole of the pressure ring (30).

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