Supporting structure and hollow drill

Abstract

The utility model provides a supporting structure and a hollow drill, and belongs to the technical field of hollow drills. The support structure includes a lateral support portion and a support stabilizing portion. The transverse supporting part comprises a ring seat and two transverse battens, the two transverse battens are symmetrically arranged on the outer side of the ring seat, and one end of each transverse batten is fixedly connected with the outer wall of the ring seat; the supporting stabilizing part comprises a threaded rod, a pressing piece and a first spring, the pressing piece is fixedly arranged at the bottom end of the threaded rod, the top end of the threaded rod movably penetrates through the transverse batten, an adjusting nut is arranged at the top end of the threaded rod in a threaded connection mode, and the first spring is arranged outside the threaded rod between the transverse batten and the pressing piece in a sleeving mode. By pushing and pressing the handheld drilling equipment, the handheld equipment elastically presses the pressing piece below to the surface of the plate through the transverse strip plate on the outer side of the ring seat and the first spring, it is guaranteed that the pressing piece can be continuously and stably pressed on the plate, the stability of the hollow drill during drilling machining can be improved, and the drilling quality of the plate is improved.

Description

Technical Field

[0001] The utility model relates to the field of hollow drills, and in particular to a supporting structure and a hollow drill. Background Art

[0002] Hollow drills can be used for drilling holes in a variety of plates. The multi-blade drill with a ring structure at the end has high drilling quality and speed, and is one of the drills commonly used for drilling holes in metal plates.

[0003] When a hollow drill is used to drill holes in a plate, especially a handheld drilling device with a hollow drill, when the handheld device places the hollow drill on the plate to drill a hole, the drill bit of the hollow drill is prone to tilt, affecting the drilling quality, and the vibration generated by the handheld drilling device during drilling is also prone to cause hand slippage, vibration, etc., affecting the drilling quality. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a support structure and a hollow drill, aiming to improve the problem that the existing handheld hollow drill drilling equipment is prone to tilt and vibrate during drilling, thereby affecting the drilling quality.

[0005] The utility model is achieved in this way:

[0006] The utility model provides a supporting structure, which comprises a transverse supporting part and a supporting stabilizing part.

[0007] The transverse support part includes a ring seat and a transverse strip plate, wherein two transverse strip plates are symmetrically arranged on the outside of the ring seat, and one end of the transverse strip plate is fixedly connected to the outer wall of the ring seat;

[0008] The supporting and stabilizing part includes a threaded rod, a pressing plate and a first spring. The pressing plate is fixedly arranged at the bottom end of the threaded rod. The top end of the threaded rod movably passes through the horizontal strip, and an adjusting nut is screwed on the top end of the threaded rod. The first spring is sleeved on the outside of the threaded rod between the horizontal strip and the pressing plate.

[0009] In an embodiment of the present utility model, the supporting and stabilizing portion further comprises an anti-slip ring pad, and the anti-slip ring pad is arranged at the bottom of the pressing sheet.

[0010] In an embodiment of the present invention, a notch is provided at the bottom of the pressing sheet, and the inner diameter of the notch is larger than the inner diameter of the anti-slip ring pad.

[0011] In an embodiment of the utility model, a bearing matched with a hollow drill is installed in the annular interior of the ring seat.

[0012] In an embodiment of the utility model, the horizontal strip is provided with a through hole, and the threaded rod movably passes through the through hole.

[0013] The present application also provides a hollow drill, comprising the above-mentioned support structure and a hollow drill part.

[0014] The hollow drill part comprises a drill bit and a drill rod, the bottom end of the drill rod is fixedly arranged with the drill bit, and the ring seat is rotatably sleeved on the outside of the drill rod.

[0015] In one embodiment of the utility model, a mounting hole is provided at the bottom end of the drill rod, a second spring is provided inside the mounting hole, a push block is movably provided inside the drill bit and slides axially along the drill rod, a guide rod is fixed on the top of the push block, and the top end of the guide rod extends into the mounting hole to squeeze the second spring.

[0016] In an embodiment of the utility model, a limiting block is provided at the top of the guide rod and slides in the upper section inside the mounting hole.

[0017] The beneficial effect of the utility model is that the utility model obtains a support structure and a hollow drill through the above design. When the handheld drilling device is used for drilling, the pressing piece at the end of the threaded rod is pressed against the plate to be drilled in advance, so that the hollow drill can fall vertically and stably on the plate to be drilled. By pushing the handheld drilling device, the handheld device elastically presses the pressing piece below to the surface of the plate through the horizontal strip plate outside the ring seat and the first spring, ensuring that the pressing piece can be continuously and stably pressed on the plate, which can improve the stability of the hollow drill during drilling processing, that is, improve the plate drilling quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the support structure and hollow drill structure provided by the embodiment of the utility model;

[0020] Figure 2 A schematic diagram of the structure of the lateral support part provided in the embodiment of the utility model;

[0021] Figure 3 A schematic diagram of the structure of the pressing sheet and the anti-slip ring pad provided in the embodiment of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of a hollow drill portion provided in an embodiment of the utility model.

[0023] In the figure: 10-lateral supporting part; 110-ring seat; 120-horizontal strip; 130-through hole; 20-support stabilizing part; 210-threaded rod; 220-pressing plate; 230-adjusting nut; 240-first spring; 250-anti-slip ring pad; 260-notch; 30-hollow drill part; 310-drill bit; 320-drill rod; 330-push block; 340-second spring; 350-guide rod; 360-limit block. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0025] See also Figure 1-Figure 4 The utility model provides a support structure, including a lateral support portion 10 and a support stabilizing portion 20.

[0026] The lateral support portion 10 and the support stabilizing portion 20 cooperate to stably support the handheld device to be drilled with a hollow drill, thereby improving the drilling quality.

[0027] See also Figure 1 and Figure 2 The lateral support part 10 includes a ring seat 110 and a horizontal strip 120. The two horizontal strips 120 are symmetrically arranged on the outside of the ring seat 110, and one end of the horizontal strip 120 is fixedly connected to the outer wall of the ring seat 110 by welding. A bearing that is matched with a hollow drill is installed inside the ring seat 110. The support stabilization part 20 includes a threaded rod 210, a pressing plate 220 and a first spring 240. The pressing plate 220 is fixedly arranged at the bottom end of the threaded rod 210, and the top end of the threaded rod 210 is movably penetrated through the horizontal strip 120, and the top end of the threaded rod 210 is screwed with an adjusting nut 230. The first spring 240 is sleeved on the outside of the threaded rod 210 located between the horizontal strip 120 and the pressing plate 220.

[0028] When the handheld drilling device is drilling, the pressing piece 220 at the end of the threaded rod 210 is pressed against the plate to be drilled in advance, so that the hollow drill can fall vertically and stably on the plate to be drilled. By pushing the handheld drilling device, the handheld device elastically presses the pressing piece 220 below to the plate surface through the horizontal strip 120 outside the ring seat 110 and the first spring 240. When the hollow drill is drilling, it is ensured that the pressing piece 220 can be continuously and stably pressed on the plate, which can improve the stability of the hollow drill during drilling, that is, improve the plate drilling quality.

[0029] For specific settings, see Figure 4 The support and stabilizing portion 20 further includes an anti-skid ring pad 250, which is disposed at the bottom of the pressing sheet 220. The anti-skid ring pad 250 may be a rubber pad, which can improve the stability of the pressing sheet 220 when it is pressed on the plate. A notch 260 is disposed at the bottom of the pressing sheet 220, and the inner diameter of the notch 260 is larger than the inner diameter of the anti-skid ring pad 250. The notch 260 at the bottom of the pressing sheet 220 is disposed so that when the anti-skid ring pad 250 is pressed on a smooth plate, the notch 260 cooperates with the anti-skid ring pad 250, so that the anti-skid ring pad 250 can be slightly adsorbed on the smooth plate, further improving the stability of the plate when drilling.

[0030] For further information, see Figure 2 A through hole 130 is provided on the horizontal strip plate 120 , and the threaded rod 210 movably passes through the through hole 130 .

[0031] See also Figure 1 and Figure 4 The present application also provides a hollow drill, comprising the above-mentioned support structure and a hollow drill part 30.

[0032] The hollow drill part 30 includes a drill bit 310 and a drill rod 320. The bottom end of the drill rod 320 is fixedly arranged with the drill bit 310, and the ring seat 110 is rotatably sleeved on the outside of the drill rod 320. A mounting hole is arranged at the bottom end of the drill rod 320, and a second spring 340 is arranged inside the mounting hole. A push block 330 is movably arranged inside the drill bit 310 to slide along the axial direction of the drill rod 320. A guide rod 350 is fixed on the top of the push block 330, and the top end of the guide rod 350 extends to the inside of the mounting hole to squeeze the second spring 340. Part of the drilled debris enters the inside of the drill bit 310, and at the same time, the debris collected inside the drill bit 310 squeezes the push block 330, and at the same time, the push block 330 squeezes the second spring 340 through the guide rod 350. When the drill bit 310 is withdrawn, the push block 330 is pushed under the elasticity of the second spring 340 so that the debris inside the drill bit 310 is automatically discharged.

[0033] Specifically, a limit block 360 is provided on the top of the guide rod 350 and slides in the upper section of the mounting hole. The limit block 360 is used to limit and prevent the guide rod 350 and the push block 330 at the bottom from falling off from the drill bit 310.

[0034] The working principle of the support structure and the hollow drill is as follows: when the handheld drilling device is used for drilling, the pressing piece 220 at the end of the threaded rod 210 is pressed against the plate to be drilled in advance, so that the hollow drill can fall vertically and stably on the plate to be drilled. By pushing the handheld drilling device, the handheld device elastically presses the pressing piece 220 below to the surface of the plate through the horizontal strip 120 on the outside of the ring seat 110 and the first spring 240. When the hollow drill is drilling, it is ensured that the pressing piece 220 can be continuously and stably pressed on the plate, which can improve the stability of the hollow drill during drilling, that is, improve the plate drilling quality.

[0035] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A support structure, characterized in that: include A transverse support portion (10), the transverse support portion (10) comprising a ring seat (110) and a transverse strip (120), two transverse strips (120) being symmetrically arranged on the outside of the ring seat (110), and one end of the transverse strip (120) being fixedly connected to the outer wall of the ring seat (110); A support stabilizing portion (20), the support stabilizing portion (20) comprising a threaded rod (210), a pressing plate (220) and a first spring (240), the pressing plate (220) being fixedly arranged at the bottom end of the threaded rod (210), the top end of the threaded rod (210) being movably inserted through the horizontal strip plate (120), and an adjusting nut (230) being threadedly arranged at the top end of the threaded rod (210), and the first spring (240) being sleeved on the outside of the threaded rod (210) located between the horizontal strip plate (120) and the pressing plate (220).

2. A support structure according to claim 1, characterized in that: The supporting stabilizing portion (20) further comprises an anti-skid ring pad (250), wherein the anti-skid ring pad (250) is arranged at the bottom of the pressing sheet (220).

3. A support structure according to claim 2, characterized in that: A notch (260) is provided at the bottom of the pressing sheet (220), and the inner diameter of the notch (260) is greater than the inner diameter of the anti-slip ring pad (250).

4. A support structure according to claim 1, characterized in that: A bearing that cooperates with the hollow drill is installed inside the annular ring seat (110).

5. A supporting structure according to claim 1, characterized in that: The horizontal strip plate (120) is provided with a through hole (130), and the threaded rod (210) movably passes through the through hole (130).

6. A hollow drill, characterized in that: A supporting structure comprising any one of claims 1 to 5 and A hollow drill part (30) comprises a drill bit (310) and a drill rod (320), the bottom end of the drill rod (320) being fixedly arranged on the drill bit (310), and the ring seat (110) being rotatably sleeved on the outside of the drill rod (320).

7. A hollow drill according to claim 6, characterized in that: A mounting hole is provided at the bottom end of the drill rod (320), a second spring (340) is provided inside the mounting hole, a push block (330) is movably provided inside the drill bit (310) and slides axially along the drill rod (320), a guide rod (350) is fixed on the top of the push block (330), and the top end of the guide rod (350) extends into the mounting hole to squeeze the second spring (340).

8. A hollow drill according to claim 7, characterized in that: A limiting block (360) is provided at the top of the guide rod (350) and slides in the upper section inside the mounting hole.

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