Woodworking drill bit structure capable of reducing raised chips

Abstract

The utility model relates to the field of woodworking drill bits, in particular to a woodworking drill bit structure capable of reducing raised chips, which comprises a drill body, a drill handle and a chip raising prevention structure, the chip raising prevention structure is fixed on the periphery of the drill handle, the chip raising prevention structure comprises a fixing ring and a protective cover, the fixing ring is sleeved and fixed on the periphery of the drill handle, and the protective cover is sleeved on the periphery of the fixing ring. The protective cover is slidably connected with the fixing ring, a spring fixing plate is further arranged in the protective cover, a connecting block is arranged on the periphery of the spring fixing plate and fixedly connected with the inner wall of the protective cover, a drill bit inserting hole is formed in the middle of the spring fixing plate, a spring is fixedly connected to the top of the spring fixing plate, and the top of the spring is fixedly connected with the bottom of the fixing ring. And the protective cover is slidably connected to the periphery of the fixing ring, wood chips can be prevented from splashing through the protective cover during drilling, and the safety performance is improved.

Description

Technical Field

[0001] This utility model relates to the field of woodworking drill bits, specifically to a woodworking drill bit structure that reduces chipping. Background Art

[0002] A woodworking drill bit is a drill bit specifically designed for drilling into wood. Because wood is less hard than metal, the chip flutes in a woodworking drill bit are deeper than those in a regular drill bit to facilitate chip removal. However, larger chip flutes can carry out relatively large wood chips, which can cause scratches if they get on a worker's skin, and can also cause eye damage if they get into the eyes.

[0003] A woodworking drill bit with patent number CN214026153U that can reduce chipping uses a chip shield on the drill shank to effectively reduce the damage to workers' skin and eyes caused by flying wood chips. However, this chip shield is fixed. If the chip shield does not fit against the wood during drilling, chips will still fly out. Therefore, a protective structure that can fit against the wood during drilling is needed to solve this problem. Utility Model Content

[0004] This utility model aims to solve the technical problems mentioned in the background section above, and proposes the following technical solutions:

[0005] A woodworking drill bit structure for reducing chipping includes a drill body, a drill shank, and a chip-preventing structure. The drill shank is located at one end of the drill body. The chip-preventing structure is fixed to the outer periphery of the drill shank. The chip-preventing structure includes a fixing ring and a protective cover. The fixing ring is fitted and fixed to the outer periphery of the drill shank. The protective cover is fitted to the outer periphery of the fixing ring. A plurality of sliders are provided on the inner wall of the protective cover. A plurality of sliding grooves are provided on the outer periphery of the fixing ring. The sliders are located in the sliding grooves and are slidably connected to the sliding grooves. A spring fixing plate is also provided inside the protective cover. A connecting block is provided on the outer periphery of the spring fixing plate. The connecting block is fixedly connected to the inner wall of the protective cover. A drill bit insertion hole is provided in the middle of the spring fixing plate. A spring is fixedly connected to the top of the spring fixing plate. The bottom of the spring is connected to the top of the spring fixing plate. The top of the spring is fixedly connected to the bottom of the fixing ring.

[0006] Preferably, the width of the slider is the same as the width of the connecting block.

[0007] Preferably, a limit block is provided at the top of the slider.

[0008] Preferably, the fixing ring has a circular hole in the middle, a bearing is disposed in the circular hole, the outer periphery of the bearing is fixedly connected to the inner wall of the circular hole, and the inner wall of the bearing is fixedly connected to the drill shank.

[0009] Preferably, the protective cover is a transparent structure.

[0010] The beneficial effects of this utility model are:

[0011] 1. By setting a fixing ring on the drill shank and sliding a protective cover around the outer circumference of the fixing ring, wood chips can be prevented from flying during drilling, thus improving safety.

[0012] 2. By setting a limit block at the top of the slider, the position of the fixing ring can be restricted to prevent the fixing ring from detaching from the protective cover.

[0013] 3. By setting a retaining ring to connect with the drill shank bearing, the anti-chip structure can be prevented from rotating when the drill bit is rotating.

[0014] 4. By setting the protective cover to be transparent, staff can observe the borehole and drill bit through the protective cover. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the anti-chip structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the anti-dust structure in Embodiment 2 of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of Embodiment 3 of this utility model;

[0019] In the diagram: 1. Drill body; 2. Drill shank; 3. Anti-chip structure; 3-1. Fixing ring; 3-11. Slide groove; 3-12. Circular hole; 3-2. Protective cover; 3-21. Sliding block; 4. Spring fixing plate; 5. Connecting block; 6. Spring; 7. Limiting block; 8. Bearing. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] In the description of this utility model, it should be understood that relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. The connection methods described by the terms "fixed connection" and "fixed setting" include, but are not limited to, "welding," "riveting," "adhesion," and "threaded connection." The terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0022] The terms “upper,” “lower,” “front,” “back,” “left,” “right,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] Example 1

[0024] Reference Figure 1-2 A woodworking drill bit structure for reducing chipping includes a drill body 1, a drill shank 2, and a chip-preventing structure 3. The drill shank 2 is located at one end of the drill body 1. The chip-preventing structure 3 is fixed to the outer periphery of the drill shank 2. The chip-preventing structure 3 includes a fixing ring 3-1 and a protective cover 3-2. The fixing ring 3-1 is fitted and fixed to the outer periphery of the drill shank 2. The protective cover 3-2 is fitted to the outer periphery of the fixing ring 3-1. Several sliders 3-21 are provided on the inner wall of the protective cover 3-2. Several grooves 3-11 are provided on the outer periphery of the fixing ring 3-1. Several sliders 3-21 are located in the grooves 3-11 and are slidably connected to the grooves 3-11. A spring fixing plate 4 is also provided inside the protective cover 3-2. A connecting block 5 is provided on the outer periphery of the spring fixing plate 4. The connecting block 5 is fixedly connected to the inner wall of the protective cover 3-2. A drill bit insertion hole 4-1 is provided in the middle of the spring fixing plate 4. A spring 6 is fixedly connected to the top of the spring fixing plate 4. The bottom of the spring 6 is connected to the top of the spring fixing plate 4. The top of the spring 6 is fixedly connected to the bottom of the fixing ring 3-1.

[0025] Preferably, the width of slider 3-21 is the same as the width of connecting block 5, which can reduce the amount of wood chips entering above spring fixing plate 4 and prevent excessive wood chips from clogging the spring.

[0026] In actual operation, when drilling, the drill bit enters the hole. At this time, under the elastic force of spring 6, the protective cover 3-2 will fit against the object being drilled. As the drill bit continues to penetrate deeper into the hole, the worker will push the electric drill, causing the drill handle 2 to drive the fixing ring 3-1 to move in the drilling direction against the elastic force of spring 6. This allows the sawdust discharged during drilling to be collected without affecting the drilling operation, thus preventing sawdust from flying.

[0027] Example 2

[0028] Reference Figure 3 The difference between this embodiment and the first embodiment is that a limiting block 7 is provided at the top of the slider 3-21 to prevent the slider 3-21 from detaching from the groove 3-11.

[0029] Example 3

[0030] Reference Figure 4 The difference between this embodiment and the first embodiment is that a circular hole 3-12 is provided in the middle of the fixing ring 3-1, and a bearing 8 is provided in the circular hole 3-12. The outer circumference of the bearing 8 is fixedly connected to the inner wall of the circular hole 3-12, and the inner wall of the bearing 8 is fixedly connected to the drill shank 2. This can solve the problem of the anti-chip structure 3 and the drill bit rotating together.

[0031] Example 4

[0032] The difference between this embodiment and Embodiment 1 is that the protective cover 3-2 is a transparent structure, allowing workers to observe the drill bit and the drilling hole through the protective cover 3-2.

Claims

1. A woodworking drill bit structure for reducing chipping, comprising a drill body (1), a drill shank (2), and a chip-prevention structure (3), wherein the drill shank (2) is located at one end of the drill body (1), characterized in that, The anti-chip structure (3) is fixed to the outer periphery of the drill shank (2). The anti-chip structure (3) includes a fixing ring (3-1) and a protective cover (3-2). The fixing ring (3-1) is fitted and fixed to the outer periphery of the drill shank (2). The protective cover (3-2) is fitted to the outer periphery of the fixing ring (3-1). A plurality of sliders (3-21) are provided on the inner wall of the protective cover (3-2). A plurality of grooves (3-11) are provided on the outer periphery of the fixing ring (3-1). A plurality of sliders (3-21) are located in the grooves (3-11) and are connected to the outer periphery of the drill shank (2). The slide groove (3-11) is slidably connected. A spring fixing plate (4) is also provided inside the protective cover (3-2). A connecting block (5) is provided on the outer periphery of the spring fixing plate (4). The connecting block (5) is fixedly connected to the inner wall of the protective cover (3-2). A drill bit insertion hole (4-1) is provided in the middle of the spring fixing plate (4). A spring (6) is fixedly connected to the top of the spring fixing plate (4). The bottom of the spring (6) is connected to the top of the spring fixing plate (4). The top of the spring (6) is fixedly connected to the bottom of the fixing ring (3-1).

2. The woodworking drill bit structure for reducing chipping according to claim 1, characterized in that, The width of the slider (3-21) is the same as the width of the connecting block (5).

3. The woodworking drill bit structure for reducing chipping according to claim 1, characterized in that, A limit block (7) is provided at the top of the slider (3-21).

4. The woodworking drill bit structure for reducing chipping according to claim 1, characterized in that, The fixing ring (3-1) has a circular hole (3-12) in the middle, and a bearing (8) is provided in the circular hole (3-12). The outer circumference of the bearing (8) is fixedly connected to the inner wall of the circular hole (3-12), and the inner wall of the bearing (8) is fixedly connected to the drill shank (2).

5. The woodworking drill bit structure for reducing chipping according to claim 1, characterized in that, The protective cover (3-2) is a transparent structure.

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