Suspended ceiling punching auxiliary device

Abstract

The utility model discloses a suspended ceiling punching auxiliary device, which belongs to the technical field of suspended ceiling equipment, and comprises a base, a storage pipe fixedly arranged on the upper end face of the base, and telescopic pipes sequentially and coaxially sleeved from inside to outside, and the driving device is fixedly arranged on the storage pipe and used for driving the telescopic pipe on the outermost side to move up and down in the storage pipe. When the drilling device is used, the drilling device provided with the drill bit is fixed at the top end of the innermost telescopic pipe, the driving device drives the outermost telescopic pipe to move upwards, and when the outermost telescopic pipe moves upwards, the corresponding transmission device drives the adjacent inner telescopic pipe to move upwards; and then the telescopic pipes are sequentially driven to move upwards from outside to inside, finally, the telescopic pipe on the innermost side drives the drilling device to move upwards, when the drilling device makes contact with a ceiling of a room, the drilling device is started to conduct drilling, and the purpose of avoiding climbing operation is achieved.

Description

Technical Field

[0001] This utility model belongs to the technical field of ceiling equipment, and in particular relates to an auxiliary device for ceiling drilling. Background Technology

[0002] A suspended ceiling refers to the decoration of the top of a room. Simply put, it refers to the decoration of the ceiling. The main basis for distinguishing suspended ceiling types is the materials used, including: light steel keel gypsum board ceiling, gypsum board ceiling, mineral wool board ceiling, plywood ceiling, irregularly shaped long strip aluminum composite panel ceiling, square painted aluminum composite panel ceiling, stained glass ceiling, aluminum honeycomb perforated sound-absorbing panel ceiling, and full-room duplex ceiling, etc.

[0003] The existing suspended ceiling consists of decorative panels, keel, and suspension wires. First, the keel needs to be fixed to the ceiling of the room. Then, the suspension wires are fixed to the keel, and the decorative panels are suspended and fixed to the ceiling using the suspension wires. When fixing the keel to the ceiling, holes need to be drilled in the ceiling, and then the keel is fixed to the ceiling using expansion bolts or similar tools.

[0004] Existing drilling equipment typically involves manual hand-held electric drills. Due to the high ceilings in rooms, scaffolding usually needs to be erected inside for work at height. During drilling, the scaffolding needs to be moved constantly, making the operation cumbersome, inefficient, and potentially dangerous. Utility Model Content

[0005] The purpose of this utility model is to provide a ceiling drilling auxiliary device that can drill holes in the ceiling of a room without having to climb to a height. It effectively solves the problems of existing technology, which requires constantly moving scaffolding, is more troublesome to operate, has low construction efficiency, and is also dangerous.

[0006] This utility model adopts the following technical solution: a ceiling drilling auxiliary device, including a base, a storage tube fixedly installed on the upper end surface of the base, and telescopic tubes coaxially mounted from the inside to the outside, the outermost telescopic tube slidingly installed inside the storage tube in the vertical direction, and a driving device fixedly installed on the storage tube, the driving device being used to drive the outermost telescopic tube to move up and down inside the storage tube; it also includes several transmission devices, each telescopic tube moving upwards drives the adjacent inner telescopic tube to move upwards through the corresponding transmission device; a drilling device is fixedly installed at the top of the innermost telescopic tube.

[0007] Furthermore, a limit rod is slidably provided inside the innermost telescopic tube along the vertical direction, and a limit block is fixedly provided inside the innermost telescopic tube below the bottom end of the limit rod.

[0008] Furthermore, the limiting block is slidably disposed in the innermost telescopic tube in the vertical direction. A locking bolt is threadedly connected to the side of the limiting block. A receiving groove is opened in the vertical direction on the side of the innermost telescopic tube corresponding to the locking bolt. An adjustment groove is opened in the vertical direction on the inner bottom wall of the receiving groove. The nut of the locking bolt is located in the receiving groove. The screw of the locking bolt passes through the adjustment groove and is threadedly connected to the limiting block. The limiting block is fixedly disposed with the innermost telescopic tube by the locking bolt.

[0009] Furthermore, the drive device includes a rack fixedly mounted on the side of the outermost telescopic tube in the vertical direction and a gear rotatably connected to the receiving tube, the gear meshing with the rack; a motor is fixedly mounted on the receiving tube, and the output shaft of the motor is fixedly mounted with the rotation shaft of the gear.

[0010] Furthermore, the telescopic tube includes a first telescopic tube, a second telescopic tube, and a third telescopic tube. The first telescopic tube is the outermost telescopic tube and is sleeved inside the receiving tube. The second telescopic tube is sleeved inside the first telescopic tube, and the third telescopic tube is sleeved inside the second telescopic tube. The limiting rod is sleeved inside the third telescopic tube.

[0011] Furthermore, the transmission device includes a first traction rope and a second traction rope. The outer end of the first traction rope is fixedly connected to the receiving tube, and the inner end of the first traction rope is fixedly connected to the bottom end of the second telescopic tube. The outer end of the second traction rope is fixedly connected to the top end of the first telescopic tube, and the inner end of the second traction rope is fixedly connected to the bottom end of the third telescopic tube.

[0012] Furthermore, both the top ends of the first and second telescopic tubes are rotatably connected to fixed pulleys, the first traction rope is driven by the corresponding fixed pulley, and the second traction rope is driven by the corresponding fixed pulley.

[0013] Furthermore, a bottom block is fixedly installed inside the third telescopic tube located below the limiting block, and a buffer spring is fixedly installed between the bottom end of the limiting rod and the bottom block, with the buffer spring passing through a through hole opened on the limiting block.

[0014] Furthermore, a housing is fixedly installed on the side of the storage tube, a gear is located inside the housing and rotatably connected to the housing, and the output shaft of the motor passes through the housing and is fixedly installed to the rotation shaft of the gear; a hand handle is rotatably connected to the side of the storage tube located below the housing, and the side of the hand handle is fixedly installed to the outer end of the first traction rope.

[0015] Furthermore, the second and third telescopic tubes are provided with long grooves along the vertical direction on the side corresponding to the fixed pulley. The bottom of the long grooves of the second and third telescopic tubes are fixedly provided with fixing blocks. The inner ends of the first and second traction ropes are passed through the corresponding fixing blocks. Each fixing block is threaded with a fixing bolt.

[0016] I. This utility model, by setting up a telescopic tube, a storage tube, a drive device, and a transmission device, allows for the following operation: A drilling device with a drill bit is fixed to the top of the innermost telescopic tube. The drive device then moves the outermost telescopic tube upwards. As the outermost telescopic tube moves upwards, the corresponding transmission device drives the adjacent inner telescopic tubes upwards. This process continues from the outside in, sequentially moving several telescopic tubes upwards until the innermost telescopic tube drives the drilling device upwards. When the drilling device contacts the ceiling, it initiates drilling. During drilling, the telescopic tube moves upwards in coordination. When the drilling depth reaches the set requirement, the telescopic tube moves downwards, causing the drilling device to move downwards, completing one drilling operation. This achieves the goal of avoiding work at heights.

[0017] II. By setting a limiting rod and a limiting block, this utility model allows the driving device to move the drilling device upward through the transmission device and the telescopic tube to drill a hole in the ceiling of the room. When the top of the limiting rod contacts the ceiling of the room, the bottom of the limiting rod abuts against the limiting block, thus restricting the drilling device from moving further upward. This indicates that the drilling depth has reached the set requirement, completing one drilling operation and achieving the purpose of easily confirming the drilling depth. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0019] Figure 2 This is a front view structural diagram of the present utility model;

[0020] Figure 3 This is a three-dimensional structural diagram of the handheld lever in this utility model;

[0021] Figure 4 This is a three-dimensional structural diagram of the gear in this utility model;

[0022] Figure 5 This is a schematic diagram of the internal three-dimensional structure of the storage tube and the first telescopic tube in this utility model;

[0023] Figure 6 In this utility model Figure 5 Enlarged schematic diagram of the structure at point A in the diagram;

[0024] Figure 7 This is a schematic diagram of the internal three-dimensional structure of the storage tube, the first telescopic tube, the second telescopic tube, and the third telescopic tube in this utility model.

[0025] Figure 8 In this utility model Figure 7 Enlarged schematic diagram of the structure at point B in the diagram;

[0026] Figure 9 This is a schematic diagram of the internal structure of the storage tube, the first telescopic tube, the second telescopic tube, and the third telescopic tube in this utility model.

[0027] Figure 10 This is a three-dimensional structural diagram of the first telescopic tube in this utility model;

[0028] Figure 11 This is a three-dimensional structural diagram of the second telescopic tube in this utility model;

[0029] Figure 12 In this utility model Figure 11 Enlarged schematic diagram of the structure at point C;

[0030] Figure 13 This is a three-dimensional structural diagram of the third telescopic tube in this utility model;

[0031] Figure 14 In this utility model Figure 13 Enlarged schematic diagram of the structure at point D;

[0032] Figure 15 This is a three-dimensional structural diagram of the limiting rod in this utility model;

[0033] Figure 16 This is a schematic diagram of the internal three-dimensional structure of the third telescopic tube in this utility model;

[0034] Figure 17 In this utility model Figure 16 Enlarged schematic diagram of the structure at point E in the diagram.

[0035] In the diagram: 1. Base; 2. Storage tube; 3. Drilling device; 4. Limiting rod; 5. Limiting block; 6. Locking bolt; 7. Receiving groove; 8. Rack; 9. Gear; 10. Motor; 11. First telescopic tube; 12. Second telescopic tube; 13. Third telescopic tube; 14. First traction rope; 15. Second traction rope; 16. Fixed pulley; 17. Base block; 18. Buffer spring; 19. Box body; 20. Hand handle; 21. Long groove; 22. Fixing block; 23. Fixing bolt; 24. Wire; 25. Switch assembly. Detailed Implementation

[0036] Please see Figure 1-17 The present invention will now be described in detail with reference to the accompanying drawings and embodiments:

[0037] The ceiling drilling auxiliary device of this utility model includes a base 1, a storage tube 2 fixedly mounted on the upper surface of the base 1, and telescopic tubes coaxially mounted from the inside to the outside. The outermost telescopic tube is slidably disposed inside the storage tube 2 in the vertical direction. It also includes a driving device fixedly mounted on the storage tube 2, which is used to drive the outermost telescopic tube to move up and down inside the storage tube 2. It also includes several transmission devices, each of which drives the adjacent inner telescopic tube to move up when it moves upward through the corresponding transmission device. A drilling device 3 is fixedly mounted on the top of the innermost telescopic tube.

[0038] In use, the drilling device 3 with the drill bit is first fixed to the top of the innermost telescopic tube. Then, the outermost telescopic tube is driven to move upward through the drive device. When the outermost telescopic tube moves upward, it drives the adjacent inner telescopic tube to move upward through the corresponding transmission device. Then, several telescopic tubes are driven to move upward in sequence from the outside to the inside, so that the innermost telescopic tube drives the drilling device 3 to move upward. When the drilling device 3 contacts the ceiling of the room, the drilling device 3 is started to drill a hole. When drilling, the telescopic tube moves upward in coordination. When the drilling depth reaches the set requirement, the telescopic tube moves downward, so that the drilling device 3 moves downward, completing one drilling operation.

[0039] To facilitate confirmation of drilling depth during drilling, in this embodiment, a limiting rod 4 is slidably installed along the vertical direction inside the innermost telescopic tube. A limiting block 5 is fixedly installed inside the innermost telescopic tube below the bottom end of the limiting rod 4. When the bottom end of the limiting rod 4 slides downward to contact the limiting block 5, the distance between the top end of the limiting rod 4 and the top end of the drill bit of the drilling device 3 is the drilling depth. In use, the drive device drives the drilling device 3 to move upward to drill a hole in the ceiling of the room through the transmission device and the telescopic tube. When the top end of the limiting rod 4 contacts the ceiling of the room, the limiting rod 4 restricts the drilling device 3 from moving further upward because the bottom end of the limiting rod 4 abuts against the limiting block 5. This indicates that the drilling depth has reached the set requirement, and one drilling operation is completed.

[0040] In practical applications, the specifications of ceiling nails vary depending on the ceiling height and material, and different specifications of nails require different drilling depths. To achieve adjustable drilling depth for use with various nail specifications, in this embodiment, the limiting block 5 is slidably positioned in the innermost telescopic tube along the vertical direction. A locking bolt 6 is threadedly connected to the side of the limiting block 5. A receiving groove 7 is formed on the side of the innermost telescopic tube corresponding to the locking bolt 6 along the vertical direction. An adjustment groove is formed on the inner bottom wall of the receiving groove 7 along the vertical direction. The nut of the locking bolt 6 is located in the receiving groove 7, and the screw of the locking bolt 6 passes through the adjustment groove and is threadedly connected to the limiting block 5. The limiting block 5 is fixedly positioned to the innermost telescopic tube by the locking bolt 6.

[0041] In use, the upper and lower positions of the limiting block 5 inside the innermost telescopic tube can be moved up and down by loosening the locking bolt 6, and the upper and lower positions of the limiting block 5 inside the innermost telescopic tube can be fixed by tightening the locking bolt 6. By adjusting the upper and lower positions of the limiting block 5, the height of the top end of the limiting rod 4 when it contacts the upper end surface of the limiting block 5 can be limited, thereby adjusting the height difference between the top end of the limiting rod 4 and the top end of the drill bit of the drilling device 3, so as to adjust the drilling depth.

[0042] In this embodiment, the driving device includes a rack 8 fixedly mounted on the side of the outermost telescopic tube along the vertical direction and a gear 9 rotatably connected to the receiving tube 2. The gear 9 meshes with the rack 8. A motor 10 is fixedly mounted on the receiving tube 2, and the output shaft of the motor 10 is fixedly mounted with the rotation shaft of the gear 9. When the motor 10 starts, it drives the gear 9 to rotate, and the gear 9 drives the rack 8 to move up and down, thereby causing the rack 8 to drive the outermost telescopic tube to move up and down, thus achieving the purpose of driving the outermost telescopic tube to move up and down.

[0043] In this embodiment, the telescopic tube includes a first telescopic tube 11, a second telescopic tube 12, and a third telescopic tube 13. The first telescopic tube 11 is the outermost telescopic tube and is sleeved inside the receiving tube 2. The second telescopic tube 12 is sleeved inside the first telescopic tube 11, and the third telescopic tube 13 is sleeved inside the second telescopic tube 12. The limiting rod 4 is sleeved inside the third telescopic tube 13.

[0044] In use, the motor 10 drives the first telescopic tube 11 to move upward through the gear 9 and the rack 8. The first telescopic tube 11 drives the second telescopic tube 12 to move upward through the corresponding transmission device. The second telescopic tube 12 drives the third telescopic tube 13 to move upward through the corresponding transmission device, thereby causing the third telescopic tube 13 to drive the drilling device 3 with the drill bit installed to move upward.

[0045] In this embodiment, the transmission device includes a first traction rope 14 and a second traction rope 15. The outer end of the first traction rope 14 is fixedly connected to the receiving tube 2, and the inner end of the first traction rope 14 is fixedly connected to the bottom end of the second telescopic tube 12. The outer end of the second traction rope 15 is fixedly connected to the top end of the first telescopic tube 11, and the inner end of the second traction rope 15 is fixedly connected to the bottom end of the third telescopic tube 13. When the motor 10 drives the first telescopic tube 11 to move upward, the top end of the first telescopic tube 11 pushes the first traction rope 14 upward. Since the outer end of the first traction rope 14 is fixed to the receiving tube 2, only the inner end of the first traction rope 14 moves upward, driving the second telescopic tube 12 to move upward. The top end of the second telescopic tube 12 pushes the second traction rope 15 upward. Since the outer end of the second traction rope 15 is fixed to the top end of the first telescopic tube 11, only the inner end of the second traction rope 15 moves upward, driving the third telescopic tube 13 to move upward, thus achieving the purpose of the first telescopic tube 11, the second telescopic tube 12, and the third telescopic tube 13 moving upward in sequence.

[0046] In the above scheme, when the telescopic tube extends or retracts upward, the first traction rope 14 slides against the top end of the first telescopic tube 11, and the second traction rope 15 slides against the top end of the second telescopic tube 12. This easily causes wear on the first traction rope 14 and the second traction rope 15. To solve this problem, in this embodiment, the top ends of both the first telescopic tube 11 and the second telescopic tube 12 are rotatably connected to fixed pulleys 16. The first traction rope 14 is driven by the corresponding fixed pulley 16, and the second traction rope 15 is driven by the corresponding fixed pulley 16. In use, when the telescopic tube moves upward, the bottom end of the first traction rope 14 moves upward, and the first traction rope 14 drives the fixed pulley 16 rotatably connected to the first telescopic tube 11 to rotate, so that the sliding friction between the first traction rope 14 and the top end of the first telescopic tube 11 is converted into rolling friction, reducing the coefficient of friction, reducing the wear of the first traction rope 14, and improving the service life of the first traction rope 14. The working principle of the second traction rope 15 is the same as that of the first traction rope 14.

[0047] In this embodiment, a bottom block 17 is fixedly installed inside the third telescopic tube 13 located below the limiting block 5. A buffer spring 18 is fixedly installed between the bottom end of the limiting rod 4 and the bottom block 17, and the buffer spring 18 passes through the through hole opened on the limiting block 5. In use, the motor 10 drives the first telescopic tube 11 to move upward through the gear 9 and the rack 8. The first telescopic tube 11 drives the third telescopic tube 13 to move upward through the first traction rope 14, the second telescopic tube 12 and the second traction rope 15, thereby causing the third telescopic tube 13 to drive the drilling. Device 3 moves upward to drill a hole in the ceiling of the room. When the top of the limiting rod 4 contacts the ceiling of the room, the limiting rod 4 will retract into the third telescopic tube 13 and compress the buffer spring 18. When the bottom of the limiting rod 4 abuts against the limiting block 5, the limiting rod 4 restricts the drilling device 3 from moving further upward, indicating that the drilling depth has reached the set requirement and one drilling is completed. The motor 10 reverses and drives the first telescopic tube 11 to move downward. The second telescopic tube 12 and the third telescopic tube 13 fall back downward by their own gravity.

[0048] In this embodiment, a housing 19 is fixedly installed on the side of the storage tube 2. The gear 9 is located inside the housing 19 and rotatably connected to the housing 19. The output shaft of the motor 10 passes through the housing 19 and is fixedly installed to the rotation shaft of the gear 9. A hand handle 20 is rotatably connected to the side of the storage tube 2 located below the housing 19. The side of the hand handle 20 is fixedly installed to the outer end of the first traction rope 14. During normal use, when the telescopic tube rises, the hand handle 20 will rotate upward and abut against the housing 19 due to the pulling force of the first traction rope 14. The outer end of 14 is essentially fixed. The first telescopic tube 11 moves upward again, which in turn drives the second telescopic tube 12 upward via the inner end of the first traction rope 14. The second telescopic tube 12 then drives the third telescopic tube 13 upward via the second traction rope 15. The third telescopic tube 13 drives the drilling device 3 and the limiting rod 4 upward. When the top of the limiting rod 4 contacts the ceiling of the room, there are two ways to drill. The first way is to continue drilling by driving the drilling device 3 upward via the motor 10 until the bottom of the limiting rod 4 is reached. The first method involves the motor 10 stopping, then manually pressing down the hand lever 20, causing it to rotate downwards and move the outer end of the first traction rope 14 downwards, which in turn moves the inner end of the first traction rope 14 upwards, causing the second telescopic tube 12 to move upwards, and so on, moving the third telescopic tube 13 upwards, which in turn moves the drilling device 3 upwards to drill until the bottom end of the limit rod 4 contacts the upper surface of the limit block 5, completing the drilling. Then, the hand lever 20 is lifted upwards, and the first... Telescopic tube 11, second telescopic tube 12, and third telescopic tube 13 fall downwards by gravity; if the fall is not smooth, the telescopic tubes can be manually assisted to fall downwards. Alternatively, a return spring can be fixedly installed at the bottom end of the first telescopic tube 11, second telescopic tube 12, and third telescopic tube 13 (not shown in the figure). The bottom end of each return spring is fixedly installed to the base 1. The return springs cause the first telescopic tube 11, second telescopic tube 12, and third telescopic tube 13 to fall back and reset. When the motor 10 stops, the rotor of the motor 10 can rotate freely.

[0049] In this embodiment, the second telescopic tube 12 and the third telescopic tube 13 are provided with long grooves 21 along the vertical direction on the side corresponding to the fixed pulley 16. The bottom of the long grooves 21 of the second telescopic tube 12 and the third telescopic tube 13 are fixedly provided with fixing blocks 22. The inner ends of the first traction rope 14 and the second traction rope 15 are passed through the corresponding fixing blocks 22. Each fixing block 22 is threaded with a fixing bolt 23. By tightening the fixing bolt 23, the head of the fixing bolt 23 is pressed against the first traction rope 14 or the second traction rope 15, thereby fixing the inner ends of the first traction rope 14 and the second traction rope 15. In use, the first traction rope 14 and the second traction rope 15 are located in the corresponding long grooves 21.

[0050] In this embodiment, the drilling device 3 is existing technology, and a handheld electric drill can generally be used. A wire 24 is fixedly installed on the electric drill, and a switch assembly 25 is fixedly installed at the other end of the wire 24. The start and stop of the electric drill can be controlled by the button on the switch assembly 25, which makes it convenient for personnel to operate the electric drill.

[0051] The working principle of this utility model is as follows: In use, the motor 10 drives the first telescopic tube 11 to move upward through the gear 9 and rack 8. The first telescopic tube 11 drives the third telescopic tube 13 to move upward through the first traction rope 14, the second telescopic tube 12 and the second traction rope 15. This causes the third telescopic tube 13 to drive the drilling device 3 and the limiting rod 4 to move upward to drill a hole in the ceiling of the room. When the top of the limiting rod 4 contacts the ceiling of the room, the limiting rod 4 will retract into the third telescopic tube 13 and compress the buffer spring 18. When the bottom of the limiting rod 4 abuts against the limiting block 5, the limiting rod 4 restricts the drilling device 3 from moving further upward, indicating that the drilling depth has reached the set requirement and one drilling operation is completed. The motor 10 reverses and drives the first telescopic tube 11 to move downward. The second telescopic tube 12 and the third telescopic tube 13 fall back downward by their own gravity and then perform the next drilling operation.

Claims

1. A ceiling drilling auxiliary device, characterized in that: It includes a base (1), a storage tube (2) is fixedly installed on the upper surface of the base (1), and telescopic tubes are coaxially mounted from the inside to the outside. The outermost telescopic tube is slidably installed inside the storage tube (2) in the vertical direction. It also includes a drive device fixedly installed on the storage tube (2). The drive device is used to drive the outermost telescopic tube to move up and down inside the storage tube (2). It also includes several transmission devices. When each telescopic tube moves upward, it drives the adjacent inner telescopic tube to move upward through the corresponding transmission device. A drilling device (3) is fixedly installed at the top of the innermost telescopic tube.

2. The ceiling drilling auxiliary device according to claim 1, characterized in that: A limit rod (4) is slidably installed inside the innermost telescopic tube along the vertical direction, and a limit block (5) is fixedly installed inside the innermost telescopic tube below the bottom end of the limit rod (4).

3. The ceiling drilling auxiliary device according to claim 2, characterized in that: The limiting block (5) is slidably disposed in the innermost telescopic tube in the up-down direction. The side of the limiting block (5) is threaded with a locking bolt (6). The innermost telescopic tube and the side corresponding to the locking bolt (6) are provided with a receiving groove (7) in the up-down direction. The inner bottom wall of the receiving groove (7) is provided with an adjustment groove in the up-down direction. The nut of the locking bolt (6) is located in the receiving groove (7). The screw part of the locking bolt (6) passes through the adjustment groove and is threadedly connected to the limiting block (5). The limiting block (5) is fixedly disposed with the innermost telescopic tube by the locking bolt (6).

4. The ceiling drilling auxiliary device according to claim 3, characterized in that: The drive device includes a rack (8) fixedly mounted on the outermost telescopic tube side along the vertical direction and a gear (9) rotatably connected to the storage tube (2), the gear (9) meshing with the rack (8); a motor (10) is fixedly mounted on the storage tube (2), and the output shaft of the motor (10) is fixedly mounted with the rotation shaft of the gear (9).

5. The ceiling drilling auxiliary device according to claim 4, characterized in that: The telescopic tubes include a first telescopic tube (11), a second telescopic tube (12), and a third telescopic tube (13). The first telescopic tube (11) is the outermost telescopic tube and is fitted inside the receiving tube (2). The second telescopic tube (12) is fitted inside the first telescopic tube (11), and the third telescopic tube (13) is fitted inside the second telescopic tube (12). The limiting rod (4) is fitted inside the third telescopic tube (13).

6. The ceiling drilling auxiliary device according to claim 5, characterized in that: The transmission device includes a first traction rope (14) and a second traction rope (15). The outer end of the first traction rope (14) is fixedly connected to the receiving tube (2), and the inner end of the first traction rope (14) is fixedly connected to the bottom end of the second telescopic tube (12). The outer end of the second traction rope (15) is fixedly connected to the top end of the first telescopic tube (11), and the inner end of the second traction rope (15) is fixedly connected to the bottom end of the third telescopic tube (13).

7. The ceiling drilling auxiliary device according to claim 6, characterized in that: The top ends of the first telescopic tube (11) and the second telescopic tube (12) are rotatably connected to fixed pulleys (16), the first traction rope (14) is connected to the corresponding fixed pulley (16) in a transmission connection, and the second traction rope (15) is connected to the corresponding fixed pulley (16) in a transmission connection.

8. The ceiling drilling auxiliary device according to claim 5, characterized in that: A bottom block (17) is fixedly installed inside the third telescopic tube (13) located below the limiting block (5). A buffer spring (18) is fixedly installed between the bottom end of the limiting rod (4) and the bottom block (17). The buffer spring (18) passes through the through hole opened on the limiting block (5).

9. The ceiling drilling auxiliary device according to claim 6, characterized in that: The storage tube (2) is fixedly provided with a box (19) on its side. The gear (9) is located inside the box (19) and is rotatably connected to the box (19). The output shaft of the motor (10) passes through the box (19) and is fixedly provided with the rotation shaft of the gear (9). The storage tube (2) located below the box (19) is rotatably connected with a hand handle (20). The side of the hand handle (20) is fixedly provided with the outer end of the first traction rope (14).

10. The ceiling drilling auxiliary device according to claim 6, characterized in that: The second telescopic tube (12) and the third telescopic tube (13) are provided with long grooves (21) in the vertical direction on the side corresponding to the fixed pulley (16). The bottom of the long grooves (21) of the second telescopic tube (12) and the third telescopic tube (13) are fixedly provided with fixing blocks (22). The inner ends of the first traction rope (14) and the second traction rope (15) are inserted into the corresponding fixing blocks (22). Each fixing block (22) is threaded with a fixing bolt (23).

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