Adjustable drilling device

Abstract

The utility model discloses an adjustable drilling device, which relates to the field of handheld or similar portable drilling machines, and comprises a main telescopic rod, the bottom of which is rotatably connected with the other ends of a dowel bar and an operating rod; a variable rhombic stable structure is formed among the main telescopic rod, the dowel bar, the operating rod and the main stress rod; the auxiliary telescopic rod is slidably mounted at the upper end of the main telescopic rod, and an electric drill is fixedly mounted at the top of the auxiliary telescopic rod; the adjusting screw rod is fixedly mounted at the top of the main stress rod; and the ejector rod is rotationally connected with the adjusting screw rod, and the ejector rod can move in the axial direction of the adjusting screw rod by rotating the ejector rod. The ejector rod and the adjusting lead screw are arranged on the main stress rod, the ejector rod is rotated before drilling, the ejector rod can abut against the ceiling, the ejector rod and the main stress rod can be fixed between the indoor top ceiling and the indoor bottom, fixing of the main stress rod is achieved, it can be guaranteed that the main stress rod cannot shake along with shaking of the motor during drilling, and the drilling efficiency is improved. And the construction is safer, more stable and more reliable.

Description

Technical Field

[0001] This utility model relates to the field of handheld or similar portable drilling machines, and in particular to an adjustable drilling device. Background Technology

[0002] With the rapid development of the construction industry, increasingly large-format, irregularly shaped suspended ceilings are gaining popularity. Drilling and fixing the base joists for these ceilings is a key aspect of the construction process. Traditionally, drilling holes in the base structural slab of a suspended ceiling involves erecting a mobile scaffold as a work platform. Workers stand on this platform and use hand-held impact drills. This mobile platform moves with the work surface, making the process cumbersome, and prolonged hand-held drilling reduces efficiency. Furthermore, the mobile platform requires a high degree of flatness in the base surface, and construction in sloping or confined spaces is limited.

[0003] However, simple drilling devices have also appeared on the market. For example, Chinese Patent No. CN215033854U discloses a tool for drilling holes in indoor ceilings. It uses a four-bar linkage to form a simple drilling tool. However, the bottom of the support rod is placed on the bottom surface, while the top of the support rod extends to a high place. When drilling, a large pressing force is required to ensure drilling. Moreover, when drilling, the drill bit contacts the ceiling. When the drill bit rotates, there is a relative rotation between the drill bit and the ceiling. In other words, when drilling, the drill bit will cause the drill to vibrate under its own torque, resulting in instability of the support rod when supporting.

[0004] To address this problem, this utility model proposes a simple drilling device for decorative ceiling installation, which solves the problems of cumbersome setup and movement of traditional operating platforms, and improves work efficiency while ensuring safe and reliable construction operations. Utility Model Content

[0005] The main objective of this invention is to provide an adjustable drilling device that can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] An adjustable drilling device, comprising:

[0008] The main load-bearing rod has a force transmission rod and an operating rod rotatably mounted on its upper end;

[0009] The bottom of the main telescopic rod is rotatably connected to the other end of the force transmission rod and the operating rod;

[0010] The main telescopic rod, force transmission rod, operating rod, and main force-bearing rod form a variable rhomboid stable structure;

[0011] The auxiliary telescopic rod is slidably installed on the upper end of the main telescopic rod, and an electric drill is fixedly installed on the top of the auxiliary telescopic rod;

[0012] The adjusting screw is fixedly installed on the top of the main load-bearing rod;

[0013] The push rod is rotatably connected to the adjusting screw. Rotating the push rod allows it to move along the axial direction of the adjusting screw.

[0014] Preferably, the upper end of the main telescopic rod is provided with a sliding hole for installing the secondary telescopic rod, and both the upper end of the main telescopic rod and the lower end of the secondary telescopic rod are provided with adjustment holes for adjusting the length of the secondary telescopic rod.

[0015] Preferably, the clamp surrounds the electric drill and is fixed to the top of the secondary telescopic rod with bolts.

[0016] Preferably, the four corners of the rhomboid stabilizing structure are connected by stainless steel bolts.

[0017] Preferably, it also includes a base, which is installed at the bottom of the main load-bearing rod.

[0018] Preferably, the base includes a supporting base plate;

[0019] Connect the ear plate and fix it to the upper end face of the support base plate;

[0020] The pin holes are located on the connecting lug plate;

[0021] The bottom of the main load-bearing rod is connected to the connecting lug plate by a pin.

[0022] Preferably, a bearing plate is rotatably mounted on the top of the top rod.

[0023] Preferably, the main load-bearing member includes:

[0024] The lower pole has a fixed insert rod installed at its top;

[0025] The upper rod has a slot at its lower end that matches the insertion rod;

[0026] The pressing plate is rotatably mounted on the bottom outer side of the upper rod. Fixing holes are provided on the bottom protrusion of the pressing plate and the upper end of the lower rod.

[0027] The swing arm has one end rotatably connected to the outer side of the upper end of the lower arm, and the other end rotatably installed in the middle of the pressing plate;

[0028] A fixing pin is inserted into a fixing hole to connect the pressing plate and the lower rod together.

[0029] Preferably, a support shaft is fixedly installed on the bottom outer side of the upper rod, and the upper end of the pressing plate is rotatably connected to the support shaft.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] This invention features a top rod and an adjusting screw on the main load-bearing rod. Before drilling, the top rod is rotated and can rest against the ceiling. The top rod and the main load-bearing rod can be fixed between the top ceiling and the bottom of the room to secure the main load-bearing rod. During drilling, this ensures that the main load-bearing rod will not shake due to motor vibration, making construction safer, more stable, and more reliable. Attached Figure Description

[0032] Figure 1 This is an overall structural diagram of Embodiment 1 of the present utility model;

[0033] Figure 2 This is a structural diagram of the base of this utility model;

[0034] Figure 3 This is a structural diagram of the base, main force-bearing rod, main telescopic rod, and auxiliary telescopic rod of this utility model;

[0035] Figure 4 This is a structural diagram of Embodiment 2 of the present invention;

[0036] Figure 5 This is a structural diagram of the pressing plate and the swing rod of this utility model;

[0037] Figure 6 This is a structural diagram of the pressing plate and swing rod in their natural state according to this utility model;

[0038] Figure 7 This is a structural diagram showing the pressing plate and swing rod of this utility model in use.

[0039] In the diagram: 1. Base; 101. Support base plate; 102. Connecting ear plate; 2. Main force-bearing rod; 21. Lower rod; 22. Upper rod; 3. Operating rod; 4. Force transmission rod; 5. Main telescopic rod; 6. Secondary telescopic rod; 7. Clamp; 8. Electric drill; 9. Support frame; 10. Stainless steel bolt; 11. Adjusting screw; 12. Top rod; 13. Bearing plate; 14. Pressing plate; 15. Swing rod. Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0041] Example 1

[0042] Please see Figures 1-3This embodiment provides an adjustable drilling device, including a main force-bearing rod 2 and a base 1, which are installed together. The base 1 includes a supporting base plate 101 and a connecting ear plate 102. The connecting ear plate 102 is fixedly installed on the upper surface of the supporting base plate 101. Both the connecting ear plate and the bottom of the main force-bearing rod 2 are provided with pin holes, and pins are inserted into the pin holes to install the main force-bearing rod 2 and the base 1 together.

[0043] An adjusting screw 11 is fixedly installed on the top of the main load-bearing rod 2. A top rod 12 is rotatably installed on the outside of the adjusting screw 11. A threaded hole matching the adjusting screw 11 is opened at the bottom of the top rod 12. A bearing plate 13 is rotatably installed on the top of the top rod 12. The bearing plate 13 can directly contact the ceiling where the hole needs to be drilled. After determining the drilling position, the main load-bearing rod 2 is placed at the bottom of the room. The top rod 12 is rotated. Under the action of the thread, the top rod 12 can move along the axial direction of the adjusting screw 11, thereby adjusting the height of the top rod 12 until the bearing plate 13 can be pressed against the ceiling to fix the position of the top rod and the main load-bearing rod 2. When drilling, since the top rod 12 and the main load-bearing rod 2 are in a vertical state and pressed against the ceiling, the drilling is more stable and no additional support or control is required for the main load-bearing rod 2, making the drilling operation easier.

[0044] A force transmission rod 4 and an operating rod 3 are rotatably mounted on the upper end of the main force-bearing rod 2, and a main telescopic rod 5 is rotatably mounted on the other end of the force transmission rod 4 and the operating rod 3. Figure 1 As shown, the main telescopic rod 5, the force transmission rod 4, and the operating rod 3, as well as the main force-bearing rod 2, the force transmission rod 4, and the operating rod 3, are all connected by stainless steel bolts 10. The above four structures form a stable rhombus structure, that is, the main telescopic rod 5, the force transmission rod 4, the operating rod 3, and the main force-bearing rod 2 form a variable stable rhombus structure. When drilling, the stainless steel bolts 10 are in a loosened state, and the connection of the above four rods can rotate, so that the rhombus structure can deform.

[0045] like Figure 1 As shown, the end of the operating lever 3 connected to the main force rod 2 extends outward. When drilling, simply press the operating lever 3 to make the main telescopic rod 5 move upward, and the rhomboid structure can deform upward.

[0046] The main telescopic rod 5 has a sliding hole at its top, through which a secondary telescopic rod 6 is slidably installed. The top of the secondary telescopic rod 6 extends out of the sliding hole. Multiple adjustment holes are provided on both the top of the main telescopic rod 5 and the secondary telescopic rod 6, evenly and vertically distributed. Bolts are inserted into these adjustment holes to connect the main telescopic rod 5 and the secondary telescopic rod 6. To adjust the height of the secondary telescopic rod 6, remove the bolts from the adjustment holes, move the secondary telescopic rod 6 up or down to the desired height, then reinstall the bolts in the adjustment holes and tighten them.

[0047] An electric drill 8 is mounted on the upper end of the auxiliary telescopic rod 6. The electric drill 8 is preferably a handheld drill, which is relatively lightweight and convenient for drilling. The electric drill 8 is mounted using a clamp 7, which surrounds the main body of the electric drill 8 and is fixed to the top of the auxiliary telescopic rod 6 with bolts. An L-shaped support frame 9 is also bolted to the upper end of the auxiliary telescopic rod 6. The bottom of the electric drill 8 rests against the support frame 9, which provides support to the electric drill 8 and prevents it from moving downwards during drilling.

[0048] The specific usage method of this embodiment is as follows: Before drilling, first determine the drilling position, then adjust the height between the main telescopic rod 5 and the auxiliary telescopic rod 6. When the force transmission rod 4 or the operating rod 3 is in a horizontal state, the drill bit tip of the electric drill 8 is just in contact with the ceiling. Align the drill bit with the drilling position, and then rotate the top rod 12 so that the top rod 12 carries the support plate 13 upward. When the support plate 13 is pressed against the ceiling, stop rotating the top rod 12. The top rod 12 and the main force rod 2 can be vertically supported on the ceiling. Then the electric drill 8 can be turned on to carry out drilling work.

[0049] During drilling, simply press the end of the operating lever 3 extending from the main support rod 2 to move the main telescopic rod 5 upwards, which in turn moves the auxiliary telescopic rod 6 and the electric drill 8 upwards simultaneously, thus completing the drilling operation. Although the vertical sides of the rhomboid structure (i.e., the main support rod 2 and the main telescopic rod 5) will slightly approach each other during drilling, the error caused by the movement of the rhomboid structure can be ignored due to the relatively small drilling depth (generally between 3-8cm), and the drilling operation can still be completed. Moreover, after drilling, expansion bolts are usually installed in the hole, so this does not affect the normal function of the hole.

[0050] Example 2

[0051] Further improvements based on Example 1:

[0052] Because an adjusting screw 11 and a top rod 12 are provided, and during drilling, the adjusting screw 11, top rod 12, and main load-bearing rod 2 can be pressed against the indoor ceiling, each time a hole is drilled, the top rod 12 needs to be rotated to press against the ceiling. After drilling is completed, the top rod 12 needs to be rotated in the opposite direction to separate the support plate 13 from the ceiling. Therefore, each time a hole is drilled, the top rod 12 needs to be rotated repeatedly, which is quite cumbersome. Therefore, in this embodiment, the main load-bearing rod 2 is set as an upper and lower structure, specifically including: as follows Figures 4-7 As shown, there are a lower rod 21 and an upper rod 22. The top of the lower rod 21 is fixedly equipped with a plug rod, and the bottom of the lower end of the upper rod 22 is provided with a slot that matches the plug rod. The plug rod can be inserted into the slot and can slide up and down in the slot.

[0053] A support shaft is fixedly installed on the outer bottom of the upper rod 22. A pressing plate 14 is rotatably installed on the outer side of the support shaft. A protrusion is fixedly installed on the bottom of the pressing plate 14. A fixing hole is opened on the protrusion. A fixing hole is also opened on the outer side of the upper end of the lower rod 21. A fixing pin is inserted into the fixing hole. The fixing pin can connect the pressing plate 14 and the lower rod 21 together.

[0054] A swing rod 15 is rotatably mounted at the middle position of the pressing plate 14. Support shafts 2 are fixedly mounted on the outer side of the upper end of the pressing plate 14 and the lower rod 21. The two ends of the swing rod 15 are rotatably connected to the support shafts 2 of the pressing plate 14 and the lower rod 21, respectively.

[0055] like Figure 6 As shown, when the ends of the upper rod 22 and the lower rod 21 are attached together, a triangular structure is formed between the pressing plate 14, the swing rod 15, and the first and second support shafts, with the end of the swing rod 15 connected to the lower rod 21 in the lowest position. Figure 6 As shown. When the pressure plate 14 is pressed down, as... Figure 6 As indicated by arrow F, the pressing plate 14 rotates downwards around support shaft one, while the swing rod 15 rotates around support shaft two and moves with the pressing plate 14, increasing the distance between support shaft one and support shaft two. That is, the upper rod 22 moves upwards along the insert rod, increasing the length of the main force-bearing rod 2. When the pressing plate 14 rotates downwards to its limit, the two fixing holes overlap, allowing the insertion of a fixing pin to connect the pressing plate 14 and the lower rod 21, thus fixing the position between the upper rod 22 and the lower rod 21. Figure 7 As shown.

[0056] The specific usage method of this embodiment is as follows: After determining the drilling position, press the pressing plate 14 down to its limit. Use the fixing pin to connect the pressing plate 14 to the lower rod 21. Then rotate the top rod 12 so that it rises until the support plate 13 is against the ceiling. Drilling can then begin. After drilling, there is no need to rotate the top rod 12. Simply pull out the fixing pin. Under the weight of the upper rod 22 and the top rod 12, the upper rod 22 will slide down along the insertion rod, and the pressing plate 14 will return to its initial state. The top rod 12 and the support plate 13 will separate from the ceiling, allowing the device to be moved to the desired drilling position. After determining the drilling position again, press the pressing plate 14 down to its limit again and rotate it. Use the fixing pin to connect the pressing plate 14 to the lower rod 21 to repeat the drilling process. Throughout the process, there is no need to repeatedly rotate the top rod 12, making it very convenient for multiple drilling operations. Moreover, since the indoor floor and ceiling are both flat structures and the distance between them remains basically unchanged, after determining the position of the top rod 12 during the first drilling, the top rod 12 hardly needs to be rotated during subsequent drilling. The main load-bearing rod 2 and the top rod 12 can be pressed against the ceiling by using the pressing plate 14.

[0057] In this embodiment, the movement of the top rod 12 on the adjusting screw 11 can adapt to floors of different heights.

[0058] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications may be made to this utility model without departing from its spirit and scope. All such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.

Claims

1. An adjustable drilling device, characterized in that, include: The main force-bearing rod (2) has a force transmission rod (4) and an operating rod (3) rotatably mounted on its upper end. The bottom of the main telescopic rod (5) is rotatably connected to the other end of the force transmission rod (4) and the operating rod (3); A variable rhomboid stable structure is formed between the main telescopic rod (5), the force transmission rod (4), the operating rod (3) and the main force-bearing rod (2). Pressing the operating rod (3) causes the main telescopic rod (5) to move upward, and the rhomboid structure can deform upward. The auxiliary telescopic rod (6) is slidably installed on the upper end of the main telescopic rod (5), and an electric drill (8) is fixedly installed on the top of the auxiliary telescopic rod (6). Adjusting screw (11) is fixedly installed on the top of the main force-bearing rod (2); The push rod (12) is rotatably connected to the adjusting screw (11). Rotating the push rod (12) allows it to move along the axial direction of the adjusting screw (11).

2. The adjustable drilling device according to claim 1, characterized in that: The upper end of the main telescopic rod (5) is provided with a sliding hole for installing the secondary telescopic rod (6), and the upper end of the main telescopic rod (5) and the lower end of the secondary telescopic rod (6) are both provided with adjustment holes for adjusting the length of the secondary telescopic rod (6).

3. The adjustable drilling device according to claim 2, characterized in that: The clamp (7) surrounds the electric drill (8) and is fixed to the top of the auxiliary telescopic rod (6) by bolts.

4. An adjustable drilling device according to claim 3, characterized in that: The four corners of the rhomboid stabilizing structure are connected by stainless steel bolts (10).

5. An adjustable drilling device according to claim 3, characterized in that: It also includes a base (1) installed at the bottom of the main force-bearing rod (2).

6. An adjustable drilling device according to claim 5, characterized in that: The base (1) includes a supporting base plate; Connecting ear plates are fixedly installed on the upper end face of the supporting base plate; The pin holes are located on the connecting lug plate; The bottom of the main load-bearing rod (2) is connected to the connecting lug plate by a pin.

7. An adjustable drilling device according to claim 1, characterized in that: The top of the top rod (12) is rotatably mounted with a bearing plate (13).

8. An adjustable drilling device according to claim 1, characterized in that: The main load-bearing rod (2) includes: The lower rod (21) has a plug fixedly installed on its top; The upper rod (22) has a slot at its lower end that matches the insertion rod; The pressing plate (14) is rotatably installed on the bottom outer side of the upper rod (22). Fixing holes are provided on the bottom protrusion of the pressing plate (14) and the upper end of the lower rod (21). One end of the swing rod (15) is rotatably connected to the outer side of the upper end of the lower rod (21), and the other end is rotatably installed in the middle position of the pressing plate (14); A fixing pin is inserted into a fixing hole to connect the pressing plate (14) and the lower rod (21).

9. An adjustable drilling device according to claim 7, characterized in that: A support shaft is fixedly installed on the bottom outer side of the upper rod (22), and the upper end of the pressing plate (14) is rotatably connected to the support shaft.

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