A height-adjustable hole punching device

Abstract

The utility model discloses a height -adjustable punching device, include: electric drill, limit sheath and support, electric drill fixed connection in the top of support, and support includes base, threaded rod and support base, and base is equipped with battery and motor, and motor drives threaded rod rotation, and support base is equipped with threaded sleeve, and threaded rod is connected with threaded sleeve screw thread, and limit sheath is fixedly connected with base, and is connected with support base slidingly, and motor rotation passes through threaded sleeve and threaded rod drive support base and moves up and down along its height direction, and support base lifting speed is fast, and the device single -person operation can punch construction, and limit sheath protects threaded section and threaded sleeve transmission part, reduces mechanical failure.

Description

Technical Field

[0001] This utility model belongs to the technical field of drilling equipment, specifically a drilling device with adjustable height. Background Technology

[0002] Drilling bolts at the top of the corridor is a common and critical step. Traditional drilling methods typically involve workers climbing to the upper level of mobile scaffolding to drill holes, which is inefficient and poses a high safety risk.

[0003] Impact drills with adjustable height supports are available on the market for drilling at heights. Some use levers to raise the support, while others use hydraulic cylinders. Existing technologies also include other auxiliary devices for drilling at heights. For example, CN202411788609.X discloses a height-adjustable drilling device, including a base, mounting rod, mounting cylinder, telescopic rod, and electric drill. This device also relies on a first hydraulic cylinder to drive a base plate to move vertically, bringing the electric drill closer to the hole to be drilled, facilitating drilling. Drills using lever structures are difficult for a single person to operate, and the support is prone to wobbling, resulting in poor stability. Drilling devices using hydraulic cylinders have a slow start-up speed. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0005] An adjustable height drilling device includes: an electric drill, a limiting sleeve, and a bracket. The electric drill is fixedly connected to the top of the bracket, and the bracket includes, from bottom to top, a base, a threaded rod, and a support.

[0006] The base includes a chassis, in which a motor is installed; the motor output shaft is vertically positioned, passes through the chassis, and extends to the upper surface of the chassis.

[0007] The threaded rod includes a lower smooth rod section, a threaded section, and an upper smooth rod section. The lower smooth rod section is fixedly connected to the motor output shaft, and the outer diameter of the upper smooth rod section is larger than the outer diameter of the threaded section.

[0008] The support includes a threaded sleeve, a support riser, and a clamp. The lower end of the support riser is fixedly connected to the threaded sleeve, and the upper end is fixedly connected to the clamp. The threaded sleeve is fitted onto the threaded rod and threadedly connected to its threaded section. The upper smooth rod section is slidably connected to the inner wall of the support riser. A limit block is provided along the axial direction on the outer circumference of the support riser. The clamp is used to fix the electric drill threaded sleeve and the support riser to be coaxially arranged, and the outer diameter of the threaded sleeve is less than or equal to that of the support riser.

[0009] The limiting sleeve is fitted onto the support riser tube, and its lower end face is fixedly connected to the upper surface of the chassis. The inner wall of the limiting sleeve is provided with an axial sliding groove, and the limiting block is adapted to the sliding groove. The limiting sleeve and the support riser tube are slidably connected through the sliding groove and the limiting block.

[0010] The motor drives the threaded rod to rotate, which in turn drives the support to move up and down vertically.

[0011] Furthermore, the height of the limiting sleeve meets the requirement that when the support is moved to the highest position, the upper end of the limiting sleeve maintains a connection section of at least 10cm with the support riser.

[0012] During the lifting and drilling process of the support, the threaded section and the threaded sleeve transmission components are always in the limiting sleeve, which blocks the dust falling from above during drilling and prevents it from falling on them, thus reducing mechanical failure.

[0013] Furthermore, a battery is installed on the chassis to power the motor; a first switch is located on the upper surface of the chassis, through which the motor is electrically connected to the battery. The first switch is a foot-operated switch that controls the motor's forward, reverse, or stop rotation. The foot-operated switch frees up the workers' hands to perform other operations.

[0014] Furthermore, a first switch is provided on the upper surface of the chassis, and the motor is connected to the first power plug in sequence with the first switch. The first power plug is plugged into an external power source. The first switch is a foot switch, which controls the motor to rotate forward, reverse, or stop.

[0015] Furthermore, the chassis is made of a high-density material, and casters are fixedly connected to the lower surface of the chassis. The high-density material results in a lower center of gravity for the support, making it more stable.

[0016] Furthermore, the electric drill is connected to the second switch and the second power plug in sequence. The second power plug is plugged into an external power source. The second switch controls the on / off state of the power supply. The electric drill works when it is powered on.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] The motor-driven support lifting mechanism has a fast start-up time, improving drilling efficiency; and the foot switch makes it easy to operate, allowing a single person to perform drilling work on the top of the corridor. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the adjustable-height punching device in Embodiment 1;

[0020] Figure 2 The image shows the isometric view of the support after the height adjustment.

[0021] Figure 3 This is the main view of the bracket before it was raised.

[0022] Figure 4 This is a sectional view of the support frame before it was raised.

[0023] Figure 5 Axonometric drawing of the base;

[0024] Figure 6 Isometric drawing of the limiting sleeve;

[0025] Figure 7 Axonometric drawing of a threaded rod;

[0026] Figure 8 Axonometric drawing of the support;

[0027] Figure 9 This is a schematic diagram of the adjustable height punching device in Example 2.

[0028] In the diagram, 100 is the base, 101 is the first switch, 102 is the chassis, 103 is the motor output shaft, 104 is the first power plug, 200 is the limiting sleeve, 201 is the slide groove, 300 is the threaded rod, 301 is the lower smooth rod section, 302 is the threaded section, 303 is the upper smooth rod section, 400 is the support, 401 is the threaded sleeve, 402 is the support riser, 403 is the limiting block, 404 is the clamp, 405 is the air hole, 500 is the electric drill, 501 is the second switch, and 502 is the second power plug. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. Example

[0030] Please see Figure 1 An adjustable-height drilling device includes an electric drill 500 and an adjustable-height bracket. The electric drill 500 is fixedly connected to the top of the bracket, which moves the electric drill 500 up and down along its height direction. The drill bit of the electric drill 500 is not shown in the figure.

[0031] The electric drill 500 is a commercially available product. The electric drill 500 is equipped with a wire and a second power plug 502. The second power plug 502 is plugged into an external power source. A second switch 501 is provided between the electric drill 500 and the second power plug 502. The second switch 501 controls the on / off of the power supply. The electric drill 500 works when it is powered on.

[0032] The height-adjustable bracket includes a base 100, a threaded rod 300, and a support 400.

[0033] Please see Figure 5The base 100 includes a first switch 101, a chassis 102, and a motor output shaft 103. The lower surface of the chassis 102 is fixedly connected to casters for easy movement of the support. The lower surface of the chassis 102 is fixedly connected to a motor and a battery (not shown in the figure). The upper surface of the chassis 102 is provided with the first switch 101. The motor is electrically connected to the battery through the first switch 101. The first switch 101 is a foot switch, which allows the construction personnel to free their hands to perform other operations. The first switch 101 controls the motor to rotate forward, reverse, or stop.

[0034] The chassis 102 is made of high-density materials such as cast iron and concrete. In addition, the motor and battery, which are high-density components, are fixed to the lower surface of the chassis 102. Most of the weight of the entire support is concentrated in the chassis 102, which makes the center of gravity of the support lower and the support more stable.

[0035] The motor output shaft 103 is vertically arranged, passes through the chassis 102, and extends to the upper surface of the chassis 102.

[0036] Please see Figure 6 The limiting sleeve 200 is a tubular object. The limiting sleeve 200 is sleeved on the support riser tube 402, and its lower end face is fixedly connected to the upper surface of the chassis 102. The inner wall of the limiting sleeve 200 is provided with one or more axial sliding grooves 201. In this embodiment, two sliding grooves are provided.

[0037] Please see Figure 7 The threaded rod 300 includes a lower smooth rod section 301, a threaded section 302, and an upper smooth rod section 303. The lower smooth rod section 301 is fixedly connected to the motor output shaft 103, and the outer diameter of the upper smooth rod section 303 is larger than the outer diameter of the threaded section 302.

[0038] Please see Figure 8 The support 400 includes a threaded sleeve 401, a support riser 402, a limiting block 403, and a clamp 404. One end of the support riser 402 is fixedly connected to the threaded sleeve 401, and the other end is fixedly connected to the clamp 404. An axial limiting block 403 is provided on the outer circumferential surface of the support riser 402. The limiting block 403 is adapted to a sliding groove on the inner wall of the limiting sleeve 200. In this embodiment, two limiting blocks are provided. The limiting sleeve 200 and the support riser 402 are slidably connected to the limiting block 403 via the sliding groove 201.

[0039] An air hole 405 is provided on the circumferential surface near the upper end of the support riser tube 402. The function of the air hole 405 is to allow air in and out of the support riser tube 402 when the threaded section 302 and the upper smooth rod section 303 move up and down inside the support riser tube 402, thereby avoiding "air resistance", reducing the lifting speed of the support 400, or even preventing the support 400 from lifting.

[0040] In other embodiments, dust prevention measures such as filters are added to the vent 405.

[0041] The clamp 404 is made of elastic material, such as thin steel sheet or plastic. When viewed from the side, it has a "ㄩ" shaped groove. The electric drill 500 is placed in the groove. Two pairs of through holes are opened on both sides of the groove to fix the electric drill 500. When fixing the electric drill 500, a threaded rod is inserted into the through hole and then tightened with a nut.

[0042] Please see Figure 1-4 The bracket assembly steps are as follows: S1: The threaded section 302 and the upper smooth section 303 of the threaded rod 300 are inserted into the support riser tube 402; S2: The threaded sleeve 401 is threadedly connected to the threaded section 302 of the threaded rod 300; S3: The threaded sleeve 401 is fixedly connected to the lower end of the support riser tube; S4: The lower smooth section 301 of the threaded rod 300 is fixedly connected to the motor output shaft 103.

[0043] Before the support 400 rises, its initial position is such that the lowest end of the threaded section 302 is flush with the lower surface of the threaded sleeve 401. When the motor rotates, the threaded rod 300 rotates accordingly, and the threaded rod 300 drives the support 400 to rise or fall through the threaded sleeve 401.

[0044] The limiting sleeve 200 is fitted onto the support riser tube 402, and the sliding groove 201 of the limiting sleeve 200 is slidably connected to the limiting block 403 of the support 400. The height of the limiting sleeve 200 satisfies the following condition: when the support 400 moves to the highest position, the upper end of the limiting sleeve 200 maintains a connection section of at least 10cm with the support riser tube 402.

[0045] Since the upper smooth rod section 303 is always in the support riser tube 402 during the rise or fall of the support 400, and the outer diameter of the upper smooth rod section 303 is larger than the outer diameter of the threaded section 302, the upper smooth rod section 303 is slidably connected to the inner wall of the support riser tube 402, which ensures that the threaded rod 300 will not separate from the support riser tube 402 and the support 400 will not shake, so that the bracket can be raised and lowered stably.

[0046] In this way, during the lifting and drilling process of the support, the threaded section and the threaded sleeve transmission components are always in the limiting sleeve, which blocks the dust falling from above during drilling, so that the dust will not fall on the threaded section and the threaded sleeve transmission components, reducing mechanical failures.

[0047] The electric drill 500 is fixed on the clamp 404 of the support 400.

[0048] When using the drilling function: S1: Insert the second power plug 502 into the power socket of the external power source; S2: Step on the first switch to make the motor rotate forward (for ease of description, the rotation of the motor that raises the support 400 is called forward rotation, and the rotation of the motor that lowers the support 400 is called reverse rotation). The support 400 rises, and when the drill bit of the electric drill 500 touches the drilling position, the support 400 continues to rise, providing a pushing force for the electric drill; S3: Turn on the second switch 501, and the electric drill 500 is powered to drill; S4: Step on the first switch to make the motor rotate in reverse, and the support 400 falls (it does not need to fall to the initial position) and the drill bit exits the drilling hole; S5: Step on the first switch to stop the motor; S6: Move to the next drilling position and repeat S2-S5.

[0049] In steps S2-S6, only one worker is needed. Holding the second switch 501 in one hand and pushing the drilling device with the other, while stepping on the first switch, the entire drilling process can be completed by a single person. The motor raises and lowers the support 400 through the threaded sleeve, resulting in fast lifting and lowering speeds and improved drilling efficiency.

[0050] The main function of the limiting sleeve 200 is: although the threaded section 302 and the threaded sleeve 401 are threadedly connected, there is friction between the external thread and the internal thread, which will cause the support 400 to rotate; by setting the limiting sleeve 200, the limiting block 403 on the support 400 cooperates with the sliding groove 201 on the limiting sleeve 200, and the limiting sleeve 200 is fixedly connected to the chassis 102, that is, to ensure that the support 400 does not rotate, and the support 400 can only be raised and lowered. Example

[0051] Please see Figure 9 The difference between this embodiment and Embodiment 1 is that the motor on the base 100, like the electric drill 500, is powered by an external power source. A first switch 101 is provided on the upper surface of the chassis 102. The first switch 101 is a foot-operated switch that controls the motor's forward, reverse, or stop rotation. A dedicated first power plug 104 is provided for the motor on the base 100. The motor is electrically connected to the first switch 101 and the first power plug 104 in sequence. The first power plug 104 is conveniently connected to the same external power socket as the second power plug 502, eliminating the need to charge the battery and allowing for longer continuous operation.

[0052] Everything else is the same as in Example 1.

[0053] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A height-adjustable punching device, characterized in that, include: The electric drill, the limiting sleeve, and the bracket are fixedly connected to the top of the bracket. The bracket, from bottom to top, includes a base, a threaded rod, and a support. The base includes a chassis, in which a motor is installed; the motor output shaft is vertically positioned, passes through the chassis, and extends to the upper surface of the chassis; The threaded rod includes a lower smooth rod section, a threaded section, and an upper smooth rod section. The lower smooth rod section is fixedly connected to the motor output shaft, and the outer diameter of the upper smooth rod section is larger than the outer diameter of the threaded section. The support includes a threaded sleeve, a support riser, and a clamp. The lower end of the support riser is fixedly connected to the threaded sleeve, and the upper end is fixedly connected to the clamp. The threaded sleeve is sleeved on the threaded rod and threadedly connected to its threaded section. The upper smooth rod section is slidably connected to the inner wall of the support riser. Limiting blocks are provided along the axial direction on the outer circumference of the support riser. The clamp is used to fix the electric drill. The limiting sleeve is fitted onto the support riser tube, and its lower end face is fixedly connected to the upper surface of the chassis. The inner wall of the limiting sleeve is provided with an axial sliding groove. The limiting block is adapted to the sliding groove, and the limiting sleeve and the support riser tube are slidably connected through the sliding groove and the limiting block. The motor drives the threaded rod to rotate, which in turn drives the support to move up and down vertically.

2. The adjustable-height punching device according to claim 1, characterized in that, The height of the limiting sleeve meets the requirement that when the support is moved to the highest position, the upper end of the limiting sleeve maintains a connection section of at least 10cm with the support riser.

3. The adjustable-height punching device according to claim 2, characterized in that, The chassis is equipped with a battery that powers the motor. A first switch is located on the upper surface of the chassis. The motor is electrically connected to the battery through the first switch. The first switch is a foot switch that controls the motor to rotate forward, reverse, or stop.

4. The adjustable-height punching device according to claim 2, characterized in that, The upper surface of the chassis is equipped with a first switch, and the motor is connected to the first switch and the first power plug in sequence. The first power plug is plugged into an external power source. The first switch is a foot switch, which controls the motor to rotate forward, reverse, or stop.

5. The adjustable-height punching device according to claim 3 or 4, characterized in that, The chassis is made of a high-density material, and casters are fixedly connected to the lower surface of the chassis.

6. The adjustable-height punching device according to claim 1, characterized in that, The electric drill is connected to the second switch and the second power plug in sequence. The second power plug is plugged into an external power source. The second switch controls the power supply. The electric drill works when it is powered on.

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