Indoor top drilling assembly

Abstract

The utility model discloses an indoor top drilling assembly which comprises an upper supporting rod, a lower supporting rod and a lower supporting rod. The lower supporting rod is of a hollow structure; the compression spring is clamped between the upper supporting rod and the lower supporting rod and is configured to adjust the distance between the upper supporting rod and the lower supporting rod; the guide rod sequentially penetrates through the upper supporting rod, the compression spring and the lower supporting rod and is connected with the lower supporting rod; the sliding rod penetrates through the upper end of the upper supporting rod and is connected with the upper supporting rod; the electric drill is fixedly connected with the upper end of the sliding rod and comprises a drill bit and an electric drill body, and the drill bit is arranged in the vertical direction. According to the drilling assembly, an operator can still conduct drilling operation at the high altitude of the top in a room under the condition that the operator is located at the low ground position, operation is easy, and working efficiency is high; and particularly, when the number of to-be-drilled holes in the indoor top is large and the to-be-drilled holes are dispersed, the drilling efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling, in particular to an indoor top drilling component. Background Art

[0002] Electric drills are commonly used during home renovations to drill holes in walls for mounting various devices. Currently, drilling holes in the ceiling requires operators to climb to a height using a ladder or other climbing tool, then drill the holes at close range with the electric drill. This approach has the following drawbacks: When multiple holes need to be drilled at intervals, operators must repeatedly climb up and down the ladder, maneuvering it to facilitate drilling. This is cumbersome and inefficient. Utility Model Content

[0003] The purpose of the utility model is to overcome the defects in the prior art and provide an indoor top drilling assembly that is simple to operate and effectively improves the drilling efficiency.

[0004] In order to achieve the above technical effects, the technical solution of the utility model is: an indoor top drilling assembly, comprising:

[0005] The upper support rod is a hollow structure;

[0006] The lower support rod is a hollow structure;

[0007] a compression spring, sandwiched between the upper support rod and the lower support rod, configured to adjust the distance between the upper support rod and the lower support rod;

[0008] A guide rod is sequentially passed through the upper support rod, the compression spring and the lower support rod, and is connected to the lower support rod;

[0009] A sliding rod is provided through the upper end of the upper support rod and is connected to the upper support rod;

[0010] The electric drill is fixedly connected to the upper end of the slide rod and comprises a drill bit and an electric drill body, wherein the drill bit is arranged in a vertical direction.

[0011] A preferred technical solution is that the guide rod includes a guide section and a positioning section from top to bottom, the positioning section is provided through the lower support rod, and the positioning section is connected to the lower support rod through a first locking member;

[0012] The positioning section is provided with a plurality of first through holes spaced apart from bottom to top; the lower support rod is provided with a plurality of groups of second through holes cooperating with and connected to the first through holes from bottom to top, and the second through holes are provided in pairs on the side walls of the lower support rod; the first locking member passes through the second through hole, the first through hole and the second through hole in sequence to fix the lower support rod to the guide rod.

[0013] The preferred technical solution is that a limiting rod is also passed through the lower support rod, and a plurality of fifth through holes are arranged at intervals from bottom to top on the limiting rod, and the first locking piece passes through the second through hole, the fifth through hole, the first through hole and the second through hole in sequence, and fixes the limiting rod and the guide rod to the inner wall of the lower support rod.

[0014] The preferred technical solution is that the sliding rod is provided with a plurality of fourth through holes spaced apart from top to bottom, and the upper support rod is provided with a plurality of groups of third through holes matched with the fourth through holes from top to bottom, and the third through holes are arranged in pairs on the side walls of the upper support rod; the second locking member fixes the upper support rod and the sliding rod through the third through hole and the fourth through hole, so that the sliding rod and the upper support rod move synchronously; after the inner cavity of the upper support rod is matched with the sliding rod, a guide section cavity is reserved for sliding with the guide section.

[0015] The preferred technical solution is that the guide section is provided with a guide waist hole from top to bottom, and the guide section slides in cooperation with the guide section cavity; the second locking piece passes through the third through hole, the fourth through hole, the guide waist hole and the third through hole in sequence, and the second locking piece slides in cooperation with the guide waist hole to limit the position.

[0016] The preferred technical solution is that the sliding rod includes a first end face at the upper end and a second end face at the lower end, and the upper end of the sliding rod is fixedly connected to an electric drill abutment plate; the electric drill body abuts against the first end face and the electric drill abutment plate at the same time, and is connected to the electric drill abutment plate through a clamp.

[0017] The preferred technical solution is that a positioning hole and a positioning piece connected to the positioning hole are also provided below the guide waist hole, and the positioning piece passes through the third through hole, the fourth through hole, the positioning hole and the third through hole in sequence to keep the compression spring in a compressed state.

[0018] A preferred technical solution is that the lower support rod includes a second top surface at the upper end and a second bottom surface at the lower end, the second top surface abuts against the compression spring, and the second bottom surface is connected to the base.

[0019] The preferred technical solution is that the upper end of the limit rod is arranged at a distance from the upper end of the lower support rod; after the inner cavity of the lower support rod accommodates the positioning section and the limit rod, a sliding rod cavity is also reserved to allow the lower end of the sliding rod to slide and cooperate with the sliding rod cavity for guidance; the length of the sliding rod cavity in the vertical direction is greater than the compression length of the compression spring.

[0020] The preferred technical solution is that the guide rod, the sliding rod and the limit rod are all rectangular rods; the inner cavity of the upper support rod and the inner cavity of the lower support rod are also rectangular cavities; the inner cavity of the upper support rod is cooperated and connected with the guide rod and the sliding rod; the inner cavity of the lower support rod is cooperated and connected with the guide rod and the limit rod; the inner cavity of the lower support rod is cooperated and connected with the guide rod and the sliding rod.

[0021] The advantages and beneficial effects of the utility model are that the drill bit of the electric drill is abutted against the ceiling of the house in the vertical direction through the upper support rod, the lower support rod, the compression spring and the slide rod; the elastic force of the deformed compression spring pushes the electric drill to move, thereby achieving drilling.

[0022] The utility model drilling assembly enables the operator to perform drilling operations at high altitude on the top of the house even when the operator is located at a low position on the ground. The operation is simple and the work efficiency is high. Especially when the number of holes to be drilled on the top of the house is large and relatively scattered, the drilling efficiency is effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 1 is a schematic diagram of the three-dimensional structure of the top drilling assembly in the embodiment;

[0024] Figure 2 yes Figure 1 A schematic diagram of an exploded structure of a top drilling assembly in a house according to an embodiment;

[0025] Figure 3 yes Figure 1 Schematic diagram of another explosion structure of the top drilling assembly in the embodiment;

[0026] Figure 4 This is another schematic diagram of the three-dimensional structure of the top drilling assembly in the embodiment;

[0027] Figure 5 Schematic comparison diagram of the three-dimensional structure of the top drilling assembly of the embodiment with different lengths (the relative positions of the sliding rod and the upper support rod are different);

[0028] Figure 6 This is a schematic diagram of the structure of the embodiment of the top of the house drilling assembly and the top of the house in different relative positions;

[0029] Figure 7 1. It is a schematic diagram of the exploded structure of the upper support rod in the top drilling assembly in another embodiment of the present invention;

[0030] In the figure: 1. Upper support rod; 11. Third through hole; 12. First top surface; 13. First bottom surface; 14. Guide section cavity; 15. Hollow cuboid unit; 16. Connector; 161. Limiting groove; 1611. Limiting surface; 1612. Support surface; 2. Lower support rod; 21. Second through hole; 22. Second top surface; 23. Second bottom surface; 24. Sliding rod cavity; 3. Compression spring; 4. Guide rod; 41. Guide section; 411. Guide waist hole; 42. Positioning section; 421. First through hole; 422. Positioning hole; 5. Sliding rod; 51. Fourth through hole; 52. First end face; 53. Second end face; 6. Electric drill; 61. Drill bit; 611. Free end; 62. Electric drill body; 621. Handle; 622. Drive unit; 623. Limiting hole; 71. First locking member; 72. Second locking member; 73. Positioning member; 81. Clamp; 82. Electric drill abutment plate; 83. Electric drill limiting plate; 9. Base; 91. Base; 10. Limiting rod; 101. Fifth through hole; A. Top of the house. DETAILED DESCRIPTION

[0031] The following embodiments are used to further describe the specific embodiments of the present invention in conjunction with the accompanying drawings and examples. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention.

[0032] In the description of the present invention, it should be noted that, unless otherwise specified, “plurality” means more than two; the terms “upper”, “lower”, “left”, “right”, “inside”, “outside”, etc., indicating directions or positional relationships, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0033] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integrally molded connections; they can refer to mechanical connections or electrical connections; and they can refer to direct connections or indirect connections. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0034] In this utility model, "up" and "down" are defined as positions when the drilling assembly is vertically positioned between the top and bottom of a room. Furthermore, the direction from the top to the bottom of the drilling assembly is defined as a first direction. The compression spring compresses (deforms) in the first direction and extends (restores its deformation) in a direction opposite to the first direction. When the drilling assembly is vertically positioned between the top and bottom of a room, the first direction is the same as the vertical direction.

[0035] like Figure 1-6 As shown, an embodiment of an indoor top drilling assembly includes:

[0036] The upper support rod 1 is a hollow structure;

[0037] The lower support rod 2 is a hollow structure;

[0038] A compression spring 3 is sandwiched between the upper support rod 1 and the lower support rod 2 and is configured to adjust the distance between the upper support rod 1 and the lower support rod 2;

[0039] The guide rod 4 is sequentially passed through the upper support rod 1, the compression spring 3 and the lower support rod 2, and is connected to the lower support rod 2;

[0040] The sliding rod 5 is passed through the upper end of the upper support rod 1 and connected to the upper support rod 1;

[0041] The electric drill 6 is fixedly connected to the upper end of the slide rod 5 and includes a drill bit 61 and an electric drill body 62 . The drill bit 61 is arranged in the vertical direction.

[0042] In this embodiment, when the drilling assembly is vertically placed between the top and bottom of the house, the drill bit 61 is arranged in the vertical direction, that is, the length direction of the drill bit 61 is in the same direction as the vertical direction, and the drill bit 61 can move in the vertical direction to achieve drilling.

[0043] The spacing between the upper support rod 1 and the lower support rod 2 is adjusted by the compression spring 3. The upper support rod 1, the compression spring 3, and the lower support rod 2 are connected by a guide rod 4, and all three move along the guide rod 4. Specifically, the expansion and contraction of the compression spring 3 causes the upper support rod 1 to move toward or away from the lower support rod 2, thereby causing the slide rod 5 fixedly connected to the upper support rod 1 and the electric drill 6 connected to the slide rod 5 to move synchronously with the upper support rod 1. The drilling assembly of the utility model uses the elasticity of the compression spring 3 to drive the electric drill 6 in a vertical direction to drill at a high position, allowing the operator to drill at a high position even when in a low position.

[0044] In this embodiment, along the vertical direction, the total length of the drilling assembly is the distance from the free end 611 of the drill bit 61 to the second bottom surface 23 of the lower support rod 2; the drilling assembly here does not include the base 9 part, so the total length does not include the height of the base 9.

[0045] When the compression spring 3 is in its undeformed state, it is at its original length. The total length of the drilling assembly is greater than the ceiling height, which is the vertical height between the top and bottom of the house to be drilled. During use, the compression spring 3 is first compressed until the total length of the drilling assembly is less than or equal to the ceiling height. The drilling assembly is then placed vertically between the top and bottom of the house. The compressed length of the compression spring 3 is the maximum distance the free end 611 of the drill bit 61 of the electric drill 6 can travel.

[0046] Furthermore, the maximum drilling depth is equal to the length of the drill bit 61. Therefore, the drilling depth is determined by both the telescopic length of the compression spring 3 and the length of the drill bit 61 itself. When the maximum telescopic length of the compression spring 3 is greater than the length of the drill bit 61, the maximum hole depth is equal to the length of the drill bit 61. When the maximum telescopic length of the compression spring 3 is equal to the length of the drill bit 61, the maximum hole depth can be equal to both the length of the drill bit 61 and the maximum telescopic length of the compression spring 3. When the maximum telescopic length of the compression spring 3 is less than the length of the drill bit 61, the maximum hole depth is equal to the maximum telescopic length of the compression spring 3.

[0047] In this embodiment, the lower support rod 2 includes a second bottom surface 23 set at the lower end and a second top surface 22 set at the upper end, the second top surface 22 abuts against the compression spring 3, and the second bottom surface 23 abuts against the bottom of the house; the upper support rod 1 includes a first bottom surface 13 set at the lower end and a first top surface 12 set at the upper end, the first bottom surface 13 abuts against the compression spring 3; the sliding rod 5 includes a first end surface 52 set at the upper end and a second end surface 53 set at the lower end, the first end surface 52 abuts against the electric drill 6, and the first end surface 52 is coplanar with the first top surface 12 or higher than the first top surface 12 (that is, the first end surface 52 is set on the side of the first top surface 12 away from the first bottom surface 13).

[0048] Preferably, the cross section of the upper support rod 1 along the direction perpendicular to the first direction is the same as the cross section of the lower support rod 2 .

[0049] like Figure 1-6 As shown, the guide rod 4, the slide rod 5 and the limit rod 10 are all rectangular rods; the inner cavity of the upper support rod 1 and the inner cavity of the lower support rod 2 are also rectangular cavities; the inner cavity of the upper support rod 1 is connected with the guide rod 4 and the slide rod 5; the inner cavity of the lower support rod 2 is connected with the guide rod 4 and the limit rod 10; the inner cavity of the lower support rod 2 is connected with the guide rod 4 and the slide rod 5.

[0050] The cooperation between the rectangular parallelepiped rod and the rectangular parallelepiped cavity enables the rectangular parallelepiped cavity to better limit the rectangular parallelepiped rod, thereby enhancing the stability of the drilling assembly of the utility model.

[0051] Furthermore, the compression spring 3 is cylindrical or square.

[0052] Preferably, the compression spring 3 is square; the square structure is designed to fit the rectangular rod shape of the guide rod 4, the slide rod 5 and the limit rod 10, so that the guide rod 4, the slide rod 5 and the limit rod 10 can slide in the hollow cavity of the compression spring 3 and reduce sliding interference.

[0053] When the compression spring 3 is cylindrical, since the upper support rod 1 and the lower support rod 2 are both hollow, the compression spring 3 is clamped between the upper support rod 1 and the lower support rod 2, and the outer diameter of the compression spring 3 is less than or equal to the circumscribed circle of the outer wall of the upper support rod 1 and the circumscribed circle of the outer wall of the lower support rod 2, and the inner diameter of the compression spring 3 is greater than or equal to the inscribed circle of the inner wall of the upper support rod 1 and the inscribed circle of the inner wall of the lower support rod 2, so as to avoid dislocation of the compression spring 3; at the same time, the setting of the guide rod 4 further limits the position of the compression spring 3 to avoid dislocation of the compression spring 3 along the direction of deviation from the first direction.

[0054] like Figure 1-4 As shown, the guide rod 4 includes a guide section 41 and a positioning section 42 from top to bottom. The positioning section 42 is provided through the lower support rod 2. The positioning section 42 is connected to the lower support rod 2 through a first locking member 71.

[0055] The positioning section 42 is provided with a plurality of first through holes 421 spaced apart from bottom to top; the lower support rod 2 is provided with a plurality of groups of second through holes 21 cooperating with the first through holes 421 from bottom to top, and the second through holes 21 are provided in pairs on the side wall of the lower support rod 2; the first locking member 71 passes through the second through hole 21, the first through hole 421 and the second through hole 21 in sequence to fix the lower support rod 2 to the guide rod 4.

[0056] In this embodiment, the lower support rod 2 is fixed, and the guide rod 4 is fixedly connected to the lower support rod 2 through the positioning section 42. Therefore, the guide rod 4 is also fixed; when drilling, the lower support rod 2 and the guide rod 4 are the basis for the movement of the electric drill 6, the slide rod 5, the compression spring 3 and the upper support rod 1, providing support for the compression spring 3 and other components.

[0057] Along the first direction, the guide rod 4 is located between the drill bit 61 and the second bottom surface 23 of the lower support rod 2 , that is, the length of the guide rod 4 is smaller than the distance between the second bottom surface 23 of the lower support rod 2 and the first top surface 12 of the upper support rod 1 .

[0058] In this embodiment, the first locking member 71 is a locking bolt.

[0059] Furthermore, the first locking member 71 connects the guide rod 4 and the lower support rod 2 through the first through hole 421 and the second through hole 21. At least two first locking members 71 are provided to improve the stability of the fixation between the guide rod 4 and the lower support rod 2.

[0060] like Figure 1-5As shown, the slide rod 5 is provided with a plurality of fourth through holes 51 spaced apart from top to bottom, and the upper support rod 1 is provided with a plurality of groups of third through holes 11 which are matched and connected with the fourth through holes 51 from top to bottom, and the third through holes 11 are provided in pairs on the side wall of the upper support rod 1; the second locking member 72 fixes the upper support rod 1 and the slide rod 5 through the third through holes 11 and the fourth through holes 51, so that the slide rod 5 and the upper support rod 1 move synchronously; after the inner cavity of the upper support rod 1 is matched and connected with the slide rod 5, a guide section cavity 14 which is matched and slidably cooperated with the guide section 41 is also reserved.

[0061] like Figure 5 As shown, in this embodiment, the relative position of the slide rod 5 and the upper support rod 1 is adjusted by cooperating with the multiple fourth through holes 51 provided on the slide rod 5 and the multiple third through holes 11 provided on the upper support rod 1, thereby adjusting the total length of the drilling assembly of the present invention, and fixing the relative position of the slide rod 5 and the upper support rod 1 by the second locking member 72; it can be applied to indoor drilling operations in houses with different ceiling heights, thereby expanding the scope of use of the assembly of the present invention.

[0062] The third through holes 11 are provided on the opposite side walls of the upper support rod 1 . The two corresponding third through holes 11 on the opposite side walls of the upper support rod 1 form a group of third through holes 11 . The side walls of the upper support rod 1 are provided with multiple groups of third through holes 11 .

[0063] The sliding rod 5 and the guide rod 4 are both arranged in the inner cavity of the upper support rod 1, and the upper support rod 1 has a limiting effect on the sliding rod 5 and the guide rod 4.

[0064] After the inner cavity of the upper support rod 1 is penetrated by the guide section 41, a guide section cavity 14 is also reserved. The slide rod 5 slides in the guide section cavity 14, and the upper support rod 1 and the guide rod 4 cooperate to limit and guide the slide rod 5; specifically, the slide rod 5 is clamped between the upper support rod 1 and the guide rod 4, that is, the side wall of the slide rod 5 is in contact with the inner wall of the upper support rod 1 and the guide rod 4, and then the upper support rod 1 and the guide rod 4 limit the slide rod 5 in other directions intersecting with the first direction, so that the slide rod 5 only moves along the first direction.

[0065] In this embodiment, the second locking member 72 is a locking bolt.

[0066] Further, such as Figure 7 As shown, the upper support rod 1 is assembled from a plurality of hollow cuboid units 15 , and the hollow cuboid units 15 are detachably connected to each other.

[0067] The upper support rod 1 is designed to be an assembled structure so as to adapt to different roof heights. Specifically, when the roof height is shorter, the number of hollow rectangular parallelepiped units 15 is reduced; when the roof height is higher, the number of hollow rectangular parallelepiped units 15 is increased.

[0068] Furthermore, after being spliced ​​together, each hollow cuboid unit 15 is fixed and locked to the slide rod 5 through the second locking member 72 ; each hollow cuboid unit 15 is matched with at least one second locking member 72 .

[0069] Furthermore, adjacent hollow cuboid units 15 are provided with connecting members 16 and connected by the connecting members 16 . The connecting members 16 are sleeved on two adjacent hollow cuboid units 15 to prevent the hollow cuboid units 15 from deviating along a direction intersecting the first direction.

[0070] Furthermore, the connecting member 16 includes two limit grooves 161 opposite to each other along the first direction, and the limit groove 161 includes a limit surface 1611 abutting against the side wall of the hollow rectangular unit 15 and a support surface 1612 abutting against the end face of the hollow rectangular unit 15; the two support surfaces 1612 of the two limit grooves 161 are penetrated by a hollow cavity, and the sliding rod 5 and the guide rod 4 are passed through the hollow cavity of the connecting member 16.

[0071] like Figure 1-4 As shown, the guide section 41 is provided with a guide waist hole 411 from top to bottom, and the guide section 41 slides in cooperation with the guide section cavity 14; the second locking piece 72 passes through the third through hole 11, the fourth through hole 51, the guide waist hole 411 and the third through hole 11 in sequence, and the second locking piece 72 slides in cooperation with the guide waist hole 411 to limit.

[0072] The length direction of the guide waist hole 411 is the same as the first direction.

[0073] The setting of the guide waist hole 411 limits the movement direction of the upper support rod 1 and the slide rod 5, ensuring that the upper support rod 1 and the slide rod 5 always move along the first direction, thereby enhancing the stability of the upper support rod 1 and the slide rod 5 during the movement.

[0074] like Figure 1-4 As shown, a positioning hole 422 and a positioning member 73 connected to the positioning hole 422 are also provided below the guide waist hole 411. The positioning member 73 passes through the third through hole 11, the fourth through hole 51, the positioning hole 422 and the third through hole 11 in sequence to keep the compression spring 3 in a compressed state.

[0075] In this embodiment, the positioning section 42 of the guide rod 4 is also disposed through the upper support rod 1, and the upper support rod 1 is connected to the positioning section 42 via a positioning member 73. Because the upper support rod 1 moves in the first direction relative to the guide rod 4, the degree of deformation of the compression spring 3 varies depending on the relative position of the upper support rod 1 and the positioning section 42. Specifically, the relative position of the guide rod 4 and the lower support rod 2 is fixed by a first locking member 71. The degree of deformation of the compression spring 3 is adjusted by adjusting the relative position of the upper support rod 1 and the positioning section 42 and locking them with the positioning member 73.

[0076] Since the upper support rod 1 moves along the guide rod 4, the displacement of the first bottom surface 13 of the upper support rod 1 relative to the guide rod 4 along the first direction can be observed to determine in real time the distance moved by the free end 611 of the drill bit 61 of the electric drill 6 along the first direction. The moving distance of the drill bit 61 is greater than or equal to the depth of the drilled hole.

[0077] When in use, first assemble the drilling assembly and at this time, the compression spring 3 is in a compressed state under the action of the first locking member 71 and the positioning member 73. Then, the assembled drilling assembly is vertically placed between the top and bottom of the house, and the positioning member 73 is removed. Under the action of the elastic force of the compression spring 3 to restore its original length, the electric drill 6 is started to start drilling.

[0078] In this embodiment, the positioning member 73 is a locking bolt.

[0079] like Figure 2-3 As shown, a limiting rod 10 is also passed through the lower support rod 2, and a plurality of fifth through holes 101 are arranged at intervals from bottom to top on the limiting rod 10. The first locking member 71 passes through the second through hole 21, the fifth through hole 101, the first through hole 421 and the second through hole 21 in sequence, fixing the limiting rod 10 and the guide rod 4 to the inner wall of the lower support rod 2.

[0080] The limiting rod 10 and the guide rod 4 are fitted together to fill the inner cavity of the lower support rod 2, ensuring the stability of the guide rod 4 in the inner cavity of the lower support rod 2. The limiting rod 10, the guide rod 4 and the lower support rod 2 are fixed by the first locking member 71 to improve the stability of the limiting rod 10, the guide rod 4 and the lower support rod 2.

[0081] like Figure 2-4 As shown, the upper end of the limit rod 10 is arranged at a distance from the upper end of the lower support rod 2; after the inner cavity of the lower support rod 2 accommodates the positioning section 42 and the limit rod 10, a slide rod cavity 24 is also reserved to allow the lower end of the slide rod 5 to slide and cooperate with the slide rod cavity 24 for guidance; the length of the slide rod cavity 24 in the vertical direction is greater than the compression length of the compression spring 3.

[0082] In this embodiment, when the compression spring 3 is at its original length, the lower end of the slide rod 5 is located in the inner cavity of the lower support rod 2, ensuring the smoothness of the up and down movement of the slide rod 5, and avoiding the sliding of the slide rod 5 due to the uneven connection between the upper support rod 1, the compression spring 3 and the lower support rod 2, thereby affecting the drilling work.

[0083] like Figure 1-4 As shown, the slide rod 5 includes a first end face 52 at the upper end and a second end face 53 at the lower end, and the upper end of the slide rod 5 is fixedly connected to the electric drill abutment plate 82; the electric drill body 62 abuts against the first end face 52 of the slide rod 5 and the electric drill abutment plate 82 at the same time, and is connected to the electric drill abutment plate 82 through the clamp 81.

[0084] The electric drill 6 is fixed on the slide rod 5, and the first end surface 52 of the slide rod 5 abuts against the electric drill body 62 to limit the movement of the electric drill 6 along the first direction, especially supporting the electric drill 6 to prevent the electric drill 6 from shifting when the electric drill 6 is drilling; the electric drill abutment plate 82 and the clamp 81 limit the displacement of the electric drill 6 in a plane perpendicular to the first direction.

[0085] Further, the structure of the electric drill 6 is as follows Figure 2 As shown in FIG, the electric drill body 62 includes a handle 621 and a drive unit 622. The handle 621 has a C-shaped structure, with its two free ends 611 connected to the drive unit 622. A limit hole 623 is located between the handle 621 and the drive unit 622. A drill limit plate 83 is provided on the drill abutment plate 82, and the drill limit plate 83 is engaged with the limit hole 623 to limit and secure the electric drill 6. In actual use, the connection structure between the slide bar 5 and the electric drill 6 can be customized according to the specific structure of the electric drill 6.

[0086] like Figure 1-4 As shown, the lower support rod 2 includes a second top surface 22 at the upper end and a second bottom surface 23 at the lower end. The second top surface 22 abuts against the compression spring 3 , and the second bottom surface 23 is connected to the base 9 .

[0087] The base 9 is provided to improve the stability of the drilling assembly of the utility model in a vertical state.

[0088] Specifically, the base 9 is fixedly connected to the lower support rod 2 by bolts; when the base 9 is provided, the total length of the drilling assembly of the present invention along the first direction is the distance from the free end 611 of the drill bit 61 to the base 91 of the base 9.

[0089] like Figure 1-6 As shown, the operating steps of the drilling assembly of the utility model are:

[0090] Step 1: Determine the drilling point on the roof and use infrared equipment to locate it; measure the vertical distance from the drilling point to the bottom of the ground, which is the roof height L1;

[0091] Step 2: Determine the hole depth to be drilled as L3, measure the length of the drill bit 61 as S, and L3≤S;

[0092] Step 3: Insert the guide rod 4 into the lower support rod 2, and the limit rod 10 into the lower support rod 2. Use the first locking member 71 to connect and lock the guide rod 4, the limit rod 10 and the lower support rod 2; then sequentially insert the compression spring 3 and the upper support rod 1 into the guide rod 4. At this time, the lower support rod 2, the compression spring 3 and the upper support rod 1 are placed in contact with each other.

[0093] Step 4: Fix the electric drill 6 to the first end surface 52 of the slide bar 5, and then insert the second end surface 53 of the slide bar 5 into the upper support bar 1, the compression spring 3, and the lower support bar 2 in sequence; adjust the position of the slide bar 5 relative to the upper support bar 1 according to the top height L1 and measure the distance L2 from the free end 611 of the drill bit 61 to the second bottom surface 23 of the lower support bar 2 (L2 is the total length of the drilling assembly when the compression spring 3 is in an undeformed state); connect and lock the upper support bar 1, the slide bar 5, and the guide section 41 of the guide bar 4 with the second locking member 72;

[0094] Step 5: Compress the compression spring 3 to a compression length of L4, where L2-L4≤L1; after the compression spring 3 is compressed, the positioning member 73 is used to connect and lock the positioning hole 422 of the upper support rod 1, the slide rod 5, and the guide rod 4;

[0095] Step 6: Place the drilling assembly assembled in step 5 vertically, and align the drill bit 61 of the electric drill 6 with the drilling point in the vertical direction;

[0096] Step 7: Remove the positioning member 73 in step 6 and start the electric drill 6 (the electric drill 6 is powered on and started. If the switch is on the electric drill body 62, the switch is previously fixed in a long-pressed state) to start drilling. Furthermore, during the drilling process, the upper support rod 1 can be manually controlled to move back and forth in the first direction to perform drilling.

[0097] Step 8: After drilling is completed, press the upper support rod 1 downward until the drill bit 61 is separated from the top of the house, insert the positioning piece 73 into the positioning section 42 of the upper support rod 1 and the guide rod 4 and lock it; the above completes the entire drilling process.

[0098] The above are the specific operation steps of the present invention (excluding the case of the base 9). If the base 9 is included, the base 9 is connected to the lower support rod 2 in the above step 4, and L2 includes the length of the base 9.

[0099] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. An indoor top drilling assembly, characterized in that: include: The upper support rod (1) is a hollow structure; The lower support rod (2) is a hollow structure; A compression spring (3) is sandwiched between the upper support rod (1) and the lower support rod (2), and is configured to adjust the distance between the upper support rod (1) and the lower support rod (2); A guide rod (4) is sequentially passed through the upper support rod (1), the compression spring (3) and the lower support rod (2), and is connected to the lower support rod (2); A sliding rod (5) is passed through the upper end of the upper support rod (1) and is connected to the upper support rod (1); The electric drill (6) is fixedly connected to the upper end of the slide rod (5), and comprises a drill bit (61) and an electric drill body (62), wherein the drill bit (61) is arranged in a vertical direction.

2. The indoor top drilling assembly according to claim 1, characterized in that: The guide rod (4) comprises a guide section (41) and a positioning section (42) from top to bottom, the positioning section (42) is passed through the lower support rod (2), and the positioning section (42) is connected to the lower support rod (2) via a first locking member (71); The positioning section (42) is provided with a plurality of first through holes (421) spaced apart from bottom to top; the lower support rod (2) is provided with a plurality of groups of second through holes (21) that are matched and connected with the first through holes (421) from bottom to top, and the second through holes (21) are provided in pairs on the side walls of the lower support rod (2); the first locking member (71) passes through the second through hole (21), the first through hole (421) and the second through hole (21) in sequence to fix the lower support rod (2) to the guide rod (4).

3. The indoor top drilling assembly according to claim 2, characterized in that: A limiting rod (10) is also provided inside the lower support rod (2), and a plurality of fifth through holes (101) are provided at intervals on the limiting rod (10) from bottom to top. The first locking member (71) passes through the second through hole (21), the fifth through hole (101), the first through hole (421) and the second through hole (21) in sequence, so as to fix the limiting rod (10) and the guide rod (4) to the inner wall of the lower support rod (2).

4. The indoor top drilling assembly according to claim 2, characterized in that: The slide rod (5) is provided with a plurality of fourth through holes (51) spaced apart from top to bottom, and the upper support rod (1) is provided with a plurality of groups of third through holes (11) which are connected to the fourth through holes (51) from top to bottom, and the third through holes (11) are provided in pairs on the side walls of the upper support rod (1); the second locking member (72) fixes the upper support rod (1) and the slide rod (5) through the third through holes (11) and the fourth through holes (51), so that the slide rod (5) and the upper support rod (1) move synchronously; after the inner cavity of the upper support rod (1) is connected to the slide rod (5), a guide section cavity (14) which is slidably matched with the guide section (41) is reserved.

5. The indoor top drilling assembly according to claim 4, characterized in that: The guide section (41) is provided with a guide waist hole (411) from top to bottom, and the guide section (41) slides in cooperation with the guide section cavity (14); the second locking member (72) passes through the third through hole (11), the fourth through hole (51), the guide waist hole (411) and the third through hole (11) in sequence, and the second locking member (72) slides in cooperation with the guide waist hole (411) in a limited manner.

6. The indoor top drilling assembly according to claim 1, characterized in that: The slide bar (5) includes a first end surface (52) at the upper end and a second end surface (53) at the lower end. The upper end of the slide bar (5) is fixedly connected to an electric drill abutment plate (82); the electric drill body (62) abuts against the first end surface (52) and the electric drill abutment plate (82) at the same time, and is connected to the electric drill abutment plate (82) via a clamp (81).

7. The indoor top drilling assembly according to claim 5, characterized in that: A positioning hole (422) and a positioning member (73) connected to the positioning hole (422) are also provided below the guide waist hole (411). The positioning member (73) passes through the third through hole (11), the fourth through hole (51), the positioning hole (422) and the third through hole (11) in sequence to keep the compression spring (3) in a compressed state.

8. The indoor top drilling assembly according to claim 1, characterized in that: The lower support rod (2) comprises a second top surface (22) at the upper end and a second bottom surface (23) at the lower end, the second top surface (22) abuts against the compression spring (3), and the second bottom surface (23) is connected to the base (9).

9. The indoor top drilling assembly according to claim 3, characterized in that: The upper end of the limiting rod (10) is arranged at a distance from the upper end of the lower support rod (2); after the inner cavity of the lower support rod (2) accommodates the positioning section (42) and the limiting rod (10), a sliding rod cavity (24) is also reserved to enable the lower end of the sliding rod (5) to slide and cooperate with the sliding rod cavity (24) for guidance; the length of the sliding rod cavity (24) in the vertical direction is greater than the compression length of the compression spring (3).

10. The indoor top drilling assembly according to claim 9, characterized in that: The guide rod (4), the slide rod (5) and the limit rod (10) are all rectangular rods; the inner cavity of the upper support rod (1) and the inner cavity of the lower support rod (2) are also rectangular cavities; the inner cavity of the upper support rod (1) is connected to the guide rod (4) and the slide rod (5); the inner cavity of the lower support rod (2) is connected to the guide rod (4) and the limit rod (10); the inner cavity of the lower support rod (2) is connected to the guide rod (4) and the slide rod (5).

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