Perforating device for indoor decoration

Abstract

The invention belongs to the technical field of decoration equipment, and particularly discloses an indoor decoration punching device which comprises a sliding seat, a hollow shaft motor is fixedly arranged on one side of the sliding seat, a hollow output shaft is coaxially arranged on the hollow shaft motor, and a drilling cylinder is coaxially and fixedly arranged at one end of the hollow output shaft. A one-way coaxial differential output mechanism is coaxially arranged at the position, close to the hollow output shaft, in the drill barrel, an inner pipe is coaxially arranged on the side, away from the hollow output shaft, of the one-way coaxial differential output mechanism, and the outer side of the part, away from the hollow output shaft, of the inner pipe is coaxially and tightly sleeved with a through-wall hollow column. An anti-falling supporting mechanism is arranged at the end, away from the hollow output shaft, of the through-wall hollow column, a through groove is formed in the sliding base in the direction parallel to the drilling barrel in a penetrating mode, and a drilling point positioning mechanism is arranged in the through groove. The drill core can be effectively limited in the drill barrel to prevent the drill core from falling through the arrangement of the anti-falling assembly, the drill barrel can be autonomously driven to drill at a constant speed through cooperation with the anti-falling assembly, low-quality punching is avoided while manpower is reduced, and the drilling position can be accurately positioned.

Description

Technical Field

[0001] The invention belongs to the technical field of decoration equipment, and specifically refers to a punching device for indoor decoration. Background Art

[0002] In modern building decoration, drilling holes in the wall is an inevitable construction link. For example, holes need to be drilled in the wall to install air conditioners, exhaust fans, pipes, etc. Especially with the increasing demand for large-diameter drilling, the traditional drilling method has many disadvantages.

[0003] When drilling holes in the exterior walls of high-rise buildings, it is very dangerous to use traditional protective devices at high altitudes outside the wall because the outside of the building is smooth and unsupported. Holes can only be drilled from the inside of the wall to the outside, which poses a great safety hazard. At the moment when the drill barrel is close to breaking through the wall, the wall core will rotate with the drill barrel, and the drill barrel will produce an outward impact force on the wall, causing the wall core on the exterior wall to easily shift. Since the wall is usually composed of a concrete load-bearing layer, an insulation layer, an air layer, and a decorative layer from the inside to the outside, these materials have different textures and strengths, and are very likely to break during the drilling process due to uneven force. The most dangerous situation is that if the drill core on the outer layer has broken, it will fall from the drill barrel under the impact of the moment of drilling through, causing a high-altitude falling object accident with disastrous consequences. However, this often happens in existing decoration drilling.

[0004] Existing equipment for drilling large holes usually needs to be equipped with support rails, which are fixed to the wall by punching screws, and the drill moves along the rails to drill. Although this method can stabilize the drill and reduce the physical exertion of construction workers, it also has some obvious defects. First, the rail is not easy to move after installation. If the drilling position deviates, the rail needs to be disassembled and reinstalled, which is cumbersome and inefficient. In addition, too many fixed holes will cause unnecessary damage to the wall. Secondly, manual pressing or operating the screw to control the advancement of the drill during drilling is time-consuming and laborious. Due to uneven force, the drill bit is easy to shake inside the wall. At the same time, uneven drilling speed and pressure are easy to cause local stress concentration on the wall, causing wall cracking. When manually operating the drill, workers need to be in close contact with dust, which is harmful to their health. Summary of the invention

[0005] In view of the above situation, the present invention provides a drilling device for interior decoration, which is equipped with an anti-drop component that can effectively confine the drill core in the drill barrel to prevent it from falling, and the cooperation with the anti-drop component can independently drive the drill barrel to drill at a uniform speed, thereby reducing manpower while avoiding low-quality drilling, and can accurately locate the drilling position to avoid repeated construction.

[0006] The technical solution adopted by the present invention is as follows: The present invention proposes a punching device for interior decoration, including a sliding seat, a hollow shaft motor is fixedly provided on one side of the sliding seat, and a hollow output shaft is coaxially provided on the hollow shaft motor as the output end of the hollow shaft motor, a drill barrel is coaxially fixed on one end of the hollow output shaft, a one-way coaxial differential output mechanism is coaxially provided in the drill barrel near the hollow output shaft, an inner tube is coaxially provided on the side of the one-way coaxial differential output mechanism away from the hollow output shaft, a through-wall hollow column is coaxially and tightly sleeved on the outer side of the inner tube away from the hollow output shaft, an anti-drop support mechanism is provided on the end of the through-wall hollow column away from the hollow output shaft, a through groove is penetrated through the sliding seat in a direction parallel to the drill barrel, a drill point positioning mechanism is provided in the through groove, and a support rod is fixedly provided above the through groove on the side of the sliding seat facing away from the drill barrel.

[0007] Furthermore, the one-way coaxial differential output mechanism includes an inner gear ring, a fixed shaft and a planet carrier, the inner gear ring is coaxially fixed in the drill barrel, one end of the fixed shaft coaxially passes through the hollow output shaft and the hollow shaft motor and is fixed to one side of the support rod, the planet carrier is coaxially and tightly slidably arranged in the drill barrel to block the drill cuttings in front, a planetary gear is arranged in a circular array on the inner side of the inner gear ring, and the planetary gear is meshed with the inner gear ring, and a sun gear is coaxially fixed at the other end of the fixed shaft, and the sun gear is located inside the planetary gear On the other hand, the sun gear is meshed with the planet gears, and a limit plate is coaxially fixed on the front and rear sides of the sun gear. The limit plate is in close contact with the inner part of the planet gear to fix the axial position of the planet gear. A transmission shaft is coaxially fixed on the side of the planet gear facing away from the hollow output shaft, and a planetary hole is penetrated through the circumferential array of the planet carrier. One end of the transmission shaft is engaged and rotatably connected with the planet carrier in the planetary hole, and a precession shaft is coaxially fixed on the side of the planet carrier facing away from the hollow output shaft, and the precession shaft has a hollow structure.

[0008] Furthermore, the anti-fall support mechanism includes a strip hole, a limiting shaft, a strut and a first extension column, the strip holes are arranged in a circular array along the length direction of the hollow wall column and are opened near the end position of the hollow wall column, the limiting shaft is arranged in a circular array, both ends of the limiting shaft are fixedly connected to the hollow wall column in the strip hole, the limiting shaft is close to one end of the hollow wall column, the first extension column is coaxially fixed to one end of the inner tube, the first extension column is coaxially fixed to one end of the first extension column, an annular strip tooth is fixed in an array along the length direction on the outer side of the second extension column, the strut rod is arranged in a circular array, one end of the strut rod is rotatably connected to the limiting shaft, the cross section of the strut rod is the same as the cross section of the strip hole, the strut rod is fixedly provided with a half gear on the lower side of the limiting shaft, and the half gear is meshed with the annular strip teeth in the array.

[0009] Furthermore, the inner side of the support rod is fixed with sharp ridges in an array along the length direction, and the lower end of the sharp ridges is located below the support rod, so that the sharp ridges can be in frictional contact with the wall surface, and when the support rod is completely immersed in the strip hole, the free surface of the gearless side of the half gear is in close contact with the inner wall of the hollow column through the wall, and when the support rod is perpendicular to the hollow column through the wall, the outer side surface of the support rod is in close contact with the hollow column through the wall at one end of the strip hole, thereby limiting the rotation angle of the support rod, and when the support rod is perpendicular to the hollow column through the wall, the projection of the support rod on the drill tube is located inside the drill tube.

[0010] Furthermore, the outer side of the inner tube close to the hollow output shaft is threaded and connected to the inner side of the screw-in shaft through a threaded structure, and a sliding groove is provided on the surface of another part of the inner tube along the length direction. A sliding rib is fixed on the inner side of the end of the through-wall hollow column away from the anti-drop support mechanism, and the sliding rib is tightly slidably arranged in the sliding groove, so that the through-wall hollow column can rotate synchronously with the inner tube and the two can slide coaxially relative to each other.

[0011] Furthermore, the drilling point positioning mechanism includes a slide rail and a rotating rod. The slide rail has a rectangular cross-section and is tightly slidably arranged in the through groove. A support seat is vertically fixed at one end of the slide rail. A storage groove is provided on the side of the slide rail facing the drill tube where it is connected to the support seat. The storage groove is arranged parallel to the slide rail. One end of the rotating rod is rotatably connected to the slide rail in the storage groove. When the rotating rod is in a vertical state, it is tightly attached to the support seat. The length of the rotating rod is less than the length of the storage groove, which is convenient for taking out the rotating rod. A positioning hole is penetrated on the surface of the other end of the rotating rod for locating the drilling position. When the slide rail is located in the through groove, the positioning hole on the rotating rod in the vertical state is coaxially arranged with the hollow column through the wall.

[0012] Furthermore, handles are fixedly provided on both sides of the slide to facilitate the operation of the slide.

[0013] Furthermore, a cross groove is provided on the outer side of the closed front end of the hollow wall column, so that a cross head electric drill can quickly rotate the hollow wall column through the cross groove.

[0014] The beneficial effects achieved by the present invention using the above structure are as follows: (1) The drill barrel drills through the wall. At this time, the drill core rotates synchronously with the drill barrel, and the support rod rotates synchronously with the drill core due to the effect of the sharp edges, so that the inner tube and the screw-in shaft no longer rotate relative to each other, so the drill barrel no longer moves forward. At this time, the hollow shaft motor is turned off, and the drill barrel, drill core and support rod are taken into the wall. Due to the obstruction of the support rod, the drill core will not fall out of the drill barrel under the impact force, so that workers have no worries when drilling, avoiding the drill core falling and causing a high-altitude falling object accident.

[0015] (2) The hollow shaft motor drives the drill barrel to rotate through the hollow output shaft, so that the one-way coaxial differential output mechanism starts to operate. The drill barrel drives the inner gear ring to rotate, while the sun gear does not rotate under the fixation of the fixed shaft, so that the planetary gear meshes between the sun gear and the inner gear ring. The transmission shaft drives the planetary carrier and the screw-in shaft to rotate synchronously, and due to the speed reduction effect, the rotation speed of the screw-in shaft is less than the rotation speed of the drill barrel. Since the sharp edge is in full contact with the outer wall surface, the through-wall hollow column and the inner tube do not rotate, so that the screw-in shaft slowly moves forward under the threaded movement of the inner tube until the drill barrel contacts the inner wall surface. The force generated by the drill barrel against the wall surface allows the sharp edge to be stuck in the outer wall surface. Then, you can let go and no longer apply force to the slide seat backward, so that the drill barrel drills slowly. The autonomous drilling process is uniform and stable, saving manpower while improving the drilling quality and preventing people from inhaling dust at close range.

[0016] (3) Use an electric drill to drill a small hole at the center of the hole to be drilled, then place the slide rail and support base on the inner wall, take the rotating rod out of the storage slot and place it in a vertical position, adjust the support base to position the positioning hole to the center of the hole to be drilled. At this time, the position of the support base is the position that needs to be fixed. The support base is fixed to the wall with bolts to achieve accurate positioning of the support base, avoid repeated fixing of the support base, and improve drilling efficiency.

[0017] (4) The inner tube and the anti-drop support mechanism can be rotated and removed from the screw-in shaft at any time, so that the device can be used smoothly in scenarios where it is not necessary to prevent the drill core from falling, which has a wider range of applications and greater practical application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The present invention is a schematic diagram of the three-dimensional structure of a punching device for interior decoration proposed by the present invention.

[0019] Figure 2 The figure is a schematic diagram of the explosion structure of a punching device for interior decoration proposed by the present invention.

[0020] Figure 3 The exploded structural diagram of the positional relationship between the one-way coaxial differential output mechanism and the drill tube of a punching device for interior decoration proposed by the present invention.

[0021] Figure 4 for Figure 3 Enlarged view of part A.

[0022] Figure 5 The present invention provides a front view of a one-way coaxial differential output mechanism of a punching device for interior decoration.

[0023] Figure 6 for Figure 5 Middle BB cross-section.

[0024] Figure 7 for Figure 6 Enlarged view of part C.

[0025] Figure 8 for Figure 6 Enlarged view of part D in the middle.

[0026] Fig. 9 The exploded structural diagram of a one-way coaxial differential output mechanism of a punching device for interior decoration proposed by the present invention.

[0027] Fig.10 This is a structural schematic diagram of the positional relationship between the sliding ribs and the sliding grooves of a punching device for interior decoration proposed by the present invention.

[0028] Among them, 1. slide seat, 11. through slot, 12. handle, 13. support rod, 2. hollow shaft motor, 21. hollow output shaft, 3. drill tube, 4. one-way coaxial differential output mechanism, 41. inner ring gear, 42. fixed shaft, 43. sun gear, 431. limit plate, 44. planetary gear, 45. transmission shaft, 46. planetary carrier, 461. planetary hole, 47. screw-in shaft, 5. inner tube, 51. slide slot, 6. through-wall hollow column, 61. slide rib, 62. cross slot, 7. anti-drop support mechanism, 71. bar hole, 72. support rod, 721. sharp rib, 73. limit shaft, 74. half gear, 75. first extension column, 76. second extension column, 761. annular bar teeth, 8. drilling point positioning mechanism, 81. slide rail, 82. support seat, 83. storage slot, 84. rotating rod, 85. positioning hole.

[0029] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0031] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0032] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 As shown, the present invention proposes a punching device for interior decoration, including a slide 1, a hollow shaft motor 2 is fixedly provided on one side of the slide 1, a hollow shaft motor 2 is coaxially provided with a hollow output shaft 21, a drill barrel 3 is coaxially fixedly provided at one end of the hollow output shaft 21, a one-way coaxial differential output mechanism 4 is coaxially provided near the hollow output shaft 21 in the drill barrel 3, an inner tube 5 is coaxially provided on the side of the one-way coaxial differential output mechanism 4 away from the hollow output shaft 21, a through-wall hollow column 6 is coaxially and tightly sleeved on the outer side of the inner tube 5 away from the hollow output shaft 21, an anti-drop support mechanism 7 is provided on the end of the through-wall hollow column 6 away from the hollow output shaft 21, a through groove 11 is penetrated and opened on the slide 1 in a direction parallel to the drill barrel 3, a drill point positioning mechanism 8 is provided in the through groove 11, and a support rod 13 is fixedly provided above the through groove 11 on the side of the slide 1 facing away from the drill barrel 3.

[0033] The one-way coaxial differential output mechanism 4 includes an inner gear ring 41, a fixed shaft 42 and a planet carrier 46. The inner gear ring 41 is coaxially fixed in the drill tube 3. One end of the fixed shaft 42 coaxially penetrates the hollow output shaft 21 and the hollow shaft motor 2 and is fixed on one side of the support rod 13. The planet carrier 46 is coaxially and tightly slidably arranged in the drill tube 3. A planetary gear 44 is arranged in a circular array on the inner side of the inner gear ring 41. The planetary gear 44 is meshed and connected with the inner gear ring 41. A sun gear 43 is coaxially fixed at the other end of the fixed shaft 42. The sun gear 43 is located inside the planetary gear 44. The sun gear 43 and the planet gear 44 are meshed and connected. A limit plate 431 is coaxially fixed on the front and rear sides of the sun gear 43. The limit plate 431 is in close contact with the inner part of the planet gear 44. A transmission shaft 45 is coaxially fixed on the side of the planet gear 44 facing away from the hollow output shaft 21. A planetary hole 461 is opened in a circumferential array of the planet carrier 46. One end of the transmission shaft 45 is engaged and rotatably connected with the planet carrier 46 in the planetary hole 461. A screw-in shaft 47 is coaxially fixed on the side of the planet carrier 46 facing away from the hollow output shaft 21. The screw-in shaft 47 has a hollow structure.

[0034] Among them, the anti-drop support mechanism 7 includes a strip hole 71, a limiting shaft 73, a strut 72 and a first extension column 75. The strip hole 71 is arranged in a circular array along the length direction of the hollow wall column 6 and is opened near the end position of the hollow wall column 6. The limiting shaft 73 is arranged in a circular array. Both ends of the limiting shaft 73 are fixedly connected to the hollow wall column 6 in the strip hole 71. The limiting shaft 73 is close to one end of the hollow wall column 6. The first extension column 75 is coaxially fixed to one end of the inner tube 5. A second extension column 76 is coaxially fixed at one end of the first extension column 75. An annular strip tooth 761 is fixed in an array along the length direction on the outer side of the second extension column 76. The strut 72 is arranged in a circular array. One end of the strut 72 is rotatably connected to the limiting shaft 73. The cross section of the strut 72 is the same as the cross section of the strip hole 71. The strut 72 is fixedly provided with a half gear 74 on the lower side of the limiting shaft 73. The half gear 74 is meshed with the annular strip teeth 761 of the array.

[0035] Among them, the inner side of the support rod 72 is fixed with a sharp rib 721 in an array along the length direction, and the lower end of the sharp rib 721 is located below the support rod 72. When the support rod 72 is completely immersed in the strip hole 71, the free surface of the gearless side of the half gear 74 is in close contact with the inner wall of the hollow wall column 6. When the support rod 72 is perpendicular to the hollow wall column 6, the outer side surface of the support rod 72 is in close contact with the hollow wall column 6 at one end of the strip hole 71. When the support rod 72 is perpendicular to the hollow wall column 6, the projection of the support rod 72 on the drill tube 3 is located inside the drill tube 3. The outer side of the inner tube 5 close to the hollow output shaft 21 is in a threaded structure and is threadedly connected to the inner side of the screw-in shaft 47. A sliding groove 51 is provided on the surface of another part of the inner tube 5 along the length direction. A sliding rib 61 is fixed on the inner side of the end of the hollow wall column 6 away from the anti-drop support mechanism 7, and the sliding rib 61 is slidably arranged in the sliding groove 51.

[0036] Among them, the drilling point positioning mechanism 8 includes a slide rail 81 and a rotating rod 84. The slide rail 81 has a rectangular cross-section. The slide rail 81 is tightly slidably arranged in the through groove 11. A support seat 82 is vertically fixed at one end of the slide rail 81. A receiving groove 83 is opened at the side of the slide rail 81 facing the drill tube 3 where it is connected to the support seat 82. The receiving groove 83 is arranged parallel to the slide rail 81. One end of the rotating rod 84 is rotatably connected to the slide rail 81 in the receiving groove 83. When the rotating rod 84 is in a vertical state, it is tightly attached to the support seat 82. The length of the rotating rod 84 is less than the length of the receiving groove 83. A positioning hole 85 is opened on the surface of the other end of the rotating rod 84. When the slide rail 81 is located in the through groove 11, the positioning hole 85 on the rotating rod 84 in the vertical state is coaxially arranged with the through-wall hollow column 6. Handles 12 are fixed on both sides of the slide seat 1, and a cross groove 62 is opened on the outside of the closed end of the through-wall hollow column 6.

[0037] When in use, first use an electric drill to drill a small hole at the center position where the hole needs to be drilled, then place the slide rail 81 and the support seat 82 on the inner wall surface, take the rotating rod 84 out of the storage slot 83 and place it in a vertical state, adjust the support seat 82 to position the positioning hole 85 to the center position where the hole needs to be drilled, at this time the position of the support seat 82 is the position that needs to be fixed, fix the support seat 82 on the wall surface with bolts, retract the rotating rod 84, hold the handle 12 to align the through slot 11 with the slide rail 81 and then insert it, at this time the through-wall hollow column 6 will be facing the center of the drilled hole, move the slide seat 1 forward so that the through-wall hollow column 6 enters the drilled hole, if the support seat 82 The rod 72 is in the expanded state. After the support rod 72 is against the inner wall, the second extension column 76 moves forward relative to the hollow wall column 6, so that the annular bar tooth 761 and the half gear 74 engage with each other and drive the support rod 72 to tighten toward the first extension column 75. During the process of the hollow wall column 6 passing through the wall, the support rod 72 is driven to completely sink into the bar hole 71 to achieve smooth passage. When the support rod 72 completely passes through the wall, the handle 12 is held to suddenly move the slide 1 backward. Under the action of inertia, the second extension column 76 moves backward relative to the hollow wall column 6, so that the support rod 72 is partially expanded, and then the slide 1 continues to move backward. The support rod 72 is fully expanded after being supported by the wall.

[0038] Use force to continue to move the slide 1 backward so that the sharp edge 721 is stuck in the outer wall without unloading the force. At this time, the hollow shaft motor 2 is turned on. The hollow shaft motor 2 refers to the motor with a hollow design at the axis center. The axis center position can pass through the column. It can also be coaxially connected with a hollow output end. This is a prior art, so its structural principle is not repeated. The hollow shaft motor 2 drives the drill tube 3 to rotate through the hollow output shaft 21, so that the unidirectional coaxial differential output mechanism 4 starts to operate, and the drill tube 3 drives the inner gear ring 41 to rotate, while the sun gear 43 does not rotate under the fixation of the fixed shaft 42, so that the planetary gear 44 is in the sun. The meshing motion between the sun gear 43 and the inner gear ring 41 is assumed that if the sun gear 43, the planetary gears 44 and the inner gear ring 41 all rotate synchronously along the axis of the sun gear 43, their rotation angular velocities are the same. If the sun gear 43 does not rotate, it is equivalent to causing an opposite effect on the planetary gears 44. Therefore, the angular velocity of the planetary gears 44 rotating around the sun gear 43 is less than the angular velocity of the inner gear ring 41. Therefore, the angular velocity of the transmission shaft 45 rotating around the sun gear 43 is less than the angular velocity of the inner gear ring 41 and the drill tube 3. The transmission shaft 45 drives the planetary carrier 46 and the precession shaft 47 to rotate synchronously, and due to the deceleration The effect is that the rotation speed of the screw-in shaft 47 is lower than the rotation speed of the drill tube 3. When the worker applies force, the sharp ridge 721 is fully in contact with the outer wall surface, so that the hollow column 6 and the inner tube 5 do not rotate, so that the screw-in shaft 47 slowly moves forward under the threaded movement of the inner tube 5, until the drill tube 3 contacts the inner wall surface, the force generated by the drill tube 3 against the wall surface makes the sharp ridge 721 able to be stuck in the outer wall surface all the time, and then the worker can let go and stop applying force to the slide 1 backward, so that the drill tube 3 slowly drills until the drill tube 3 drills through the wall. At this time, the drill core rotates synchronously with the drill tube 3, and the support rod 72 is The function of 721 is to rotate synchronously with the drill core, so that the inner tube 5 and the screw-in shaft 47 no longer rotate relative to each other, so the drill barrel 3 no longer moves forward. At this time, the hollow shaft motor 2 is turned off, and the drill barrel 3, the drill core and the support rod 72 are taken into the wall. Since the projection of the support rod 72 on the drill barrel 3 is located inside the drill barrel 3 when the support rod 72 is perpendicular to the hollow column 6 through the wall, the support rod 72 can also be smoothly taken into the wall, and the slide 1 is removed from the slide rail 81, the drill barrel 3 is inverted, and a cross-head electric drill is used to align the cross groove 62 and rotate in the opposite direction, the inner tube 5 is quickly removed from the screw-in shaft 47, and then the drill core is poured out.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0040] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

[0041] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A punching device for interior decoration, comprising a slide seat (1), characterized in that: A hollow shaft motor (2) is fixedly provided on one side of the slide seat (1), a hollow shaft motor (2) is coaxially provided with a hollow output shaft (21), a drill tube (3) is coaxially fixedly provided on one end of the hollow output shaft (21), a one-way coaxial differential output mechanism (4) is coaxially provided in the drill tube (3) near the hollow output shaft (21), an inner tube (5) is coaxially provided on the side of the one-way coaxial differential output mechanism (4) away from the hollow output shaft (21), a through-wall hollow column (6) is coaxially and tightly sleeved on the outer side of the inner tube (5) away from the hollow output shaft (21), an anti-drop support mechanism (7) is provided on one end of the through-wall hollow column (6) away from the hollow output shaft (21), a through slot (11) is penetrated through the slide seat (1) in a direction parallel to the drill tube (3), a drill point positioning mechanism (8) is provided in the through slot (11), and a support rod (13) is fixedly provided above the through slot (11) on the side of the slide seat (1) facing away from the drill tube (3).

2. A punching device for interior decoration according to claim 1, characterized in that: The one-way coaxial differential output mechanism (4) comprises an inner gear ring (41), a fixed shaft (42) and a planet carrier (46); the inner gear ring (41) is coaxially fixedly arranged in the drill tube (3); one end of the fixed shaft (42) coaxially passes through the hollow output shaft (21) and the hollow shaft motor (2) and is then fixedly arranged on one side of the support rod (13); the planet carrier (46) is coaxially and tightly slidably arranged in the drill tube (3); a planetary gear (44) is arranged in a circular array on the inner side of the inner gear ring (41); the planetary gear (44) is meshingly connected to the inner gear ring (41); a sun gear (43) is coaxially fixedly arranged on the other end of the fixed shaft (42); the sun gear (43) is located on the inner side of the planetary gear (44). The sun gear (43) and the planet gear (44) are meshingly connected, and a limit plate (431) is coaxially fixedly provided on the front and rear sides of the sun gear (43), and the limit plate (431) is in close contact with the inner part of the planet gear (44). A transmission shaft (45) is coaxially fixedly provided on the side of the planet gear (44) facing away from the hollow output shaft (21), and a planet hole (461) is formed through a circumferential array of the planet carrier (46). One end of the transmission shaft (45) is engaged and rotatably connected with the planet carrier (46) in the planet hole (461), and a precession shaft (47) is coaxially fixedly provided on the side of the planet carrier (46) facing away from the hollow output shaft (21), and the precession shaft (47) has a hollow structure.

3. A punching device for interior decoration according to claim 2, characterized in that: The anti-drop support mechanism (7) comprises a strip hole (71), a limiting shaft (73), a support rod (72) and a first extension column (75); the strip holes (71) are arranged in a circumferential array along the length direction of the through-wall hollow column (6) and are opened near the end of the through-wall hollow column (6); the limiting shaft (73) is arranged in a circumferential array; both ends of the limiting shaft (73) are fixedly connected to the through-wall hollow column (6) in the strip hole (71); the limiting shaft (73) is close to one end of the through-wall hollow column (6); and the first extension column (75) is coaxially fixedly arranged on the inner tube (5). One end of the first extension column (75) is coaxially fixed with a second extension column (76), and an annular bar tooth (761) is fixedly arranged in an array along the length direction on the outer side of the second extension column (76). The support rod (72) is arranged in a circular array, and one end of the support rod (72) is rotatably connected to the limit shaft (73). The cross section of the support rod (72) is the same as the cross section of the bar hole (71). A half gear (74) is fixedly arranged on the lower side of the limit shaft (73) of the support rod (72), and the half gear (74) is meshingly connected with the annular bar tooth (761) in the array.

4. The punching device for interior decoration according to claim 3, characterized in that: The inner side of the support rod (72) is fixedly provided with sharp edges (721) in an array along the length direction, the lower end of the sharp edges (721) is located below the support rod (72), when the support rod (72) is completely immersed in the strip hole (71), the gearless side free surface of the half gear (74) is in close contact with the inner wall of the through-wall hollow column (6), when the support rod (72) is perpendicular to the through-wall hollow column (6), the outer side surface of the support rod (72) is in close contact with the through-wall hollow column (6) at one end of the strip hole (71), and when the support rod (72) is perpendicular to the through-wall hollow column (6), the projection of the support rod (72) on the drill tube (3) is located inside the drill tube (3).

5. The punching device for interior decoration according to claim 4, characterized in that: The outer side of the inner tube (5) near the hollow output shaft (21) is threaded and connected to the inner side of the screw-in shaft (47) through a thread. A sliding groove (51) is provided on the surface of another part of the inner tube (5) along the length direction. A sliding rib (61) is fixedly provided on the inner side of the end of the through-wall hollow column (6) away from the anti-drop support mechanism (7). The sliding rib (61) is tightly slidably arranged in the sliding groove (51).

6. The indoor decoration punching device according to claim 5, characterized in that: The drilling point positioning mechanism (8) comprises a slide rail (81) and a rotating rod (84); the slide rail (81) has a rectangular cross section; the slide rail (81) is tightly slidably arranged in the through groove (11); a support seat (82) is vertically fixedly arranged at one end of the slide rail (81); a receiving groove (83) is formed on the side of the slide rail (81) facing the drill tube (3) at the connection with the support seat (82); the receiving groove (83) is arranged parallel to the slide rail (81); One end of the rod (84) is rotatably connected to the slide rail (81) in the storage groove (83); the rotating rod (84) is in close contact with the support seat (82) when in a vertical state; the length of the rotating rod (84) is less than the length of the storage groove (83); a positioning hole (85) is formed through the surface of the other end of the rotating rod (84); and the positioning hole (85) on the rotating rod (84) in a vertical state when the slide rail (81) is located in the through groove (11) is coaxially arranged with the through-wall hollow column (6).

7. The indoor decoration punching device according to claim 6, characterized in that: Handles (12) are fixedly provided on both sides of the slide seat (1).

8. The indoor decoration punching device according to claim 7, characterized in that: A cross groove (62) is provided on the outer side of the closed front end of the through-the-wall hollow column (6).

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