Drilling tool

Abstract

The utility model relates to electric tool technical field discloses a kind of drilling tools.The drilling tool includes shell, drill bit, dustproof cylinder and limiting piece, drill bit is rotatably arranged in shell around its own axis;Dustproof cylinder is arranged in shell, and the free end of dustproof cylinder can be moved towards the direction close to or away from drill bit;Dustproof cylinder has the dustproof state close to drill bit and the storage state away from drill bit, when the dustproof state, drill bit is located in the inner chamber of dustproof cylinder, when the storage state, drill bit is separated from the inner chamber of dustproof cylinder;Limiting piece is arranged in shell, for dustproof cylinder is limited in storage state.The drilling tool effectively reduces the influence of dust on environment and user health, greatly improves the safety of drilling operation, and guarantees drilling quality.

Description

Technical Field

[0001] This utility model belongs to the field of power tool technology, and in particular relates to a drilling tool. Background Technology

[0002] In construction, interior decoration, and furniture manufacturing, tasks such as screw fixing and wall panel drilling often require the assistance of electric drills. Among them, the electric drill, with its core advantages of portability and efficiency, has become one of the most widely used tools.

[0003] However, during daily use, drilling generates a large amount of dust containing quartz sand and metal powder, which not only pollutes the surrounding environment but also poses a threat to the life and health of users, making it difficult to meet people's pursuit of a healthy life.

[0004] Therefore, there is an urgent need for a drilling tool to solve the above problems. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a drilling tool that effectively reduces the impact of dust on the environment and user health, greatly improves the safety of drilling operations, and ensures drilling quality.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A drilling tool is provided, comprising:

[0008] The housing and the drill bit, with the drill bit rotatably mounted on the housing about its own axis;

[0009] A dustproof sleeve is installed in the housing, and the free end of the dustproof sleeve can move towards or away from the drill bit; the dustproof sleeve has a dustproof state when it is close to the drill bit and a retracted state when it is away from the drill bit. In the dustproof state, the drill bit is at least partially located in the inner cavity of the dustproof sleeve, and in the retracted state, the drill bit is detached from the inner cavity of the dustproof sleeve.

[0010] A limiting component, located on the housing, is used to limit the dust cover to the retracted position.

[0011] Optionally, the limiting component includes a pressing part movably disposed in the housing. In the retracted state, the free end of the dustproof cylinder moves to the side of the pressing part away from the drill bit and contacts the pressing part. When the limiting of the pressing part of the dustproof cylinder is released, the dustproof cylinder switches from the retracted state to the dustproof state.

[0012] Optionally, the limiting component includes a connecting rope and a hook. One end of the connecting rope is located near the fixed end of the dustproof cylinder, and the other end of the connecting rope is connected to the hook. In the stored state, the free end of the hook is connected to the free end of the dustproof cylinder.

[0013] Optionally, the drilling tool may also include a telescopic support, one end of which is connected to the housing and the other end to the dust cover.

[0014] Optionally, the telescopic support includes multiple telescopic rods, which are arranged at circumferential intervals along the dustproof cylinder.

[0015] Optionally, the dust cover may include a transparent corrugated cylinder.

[0016] Optionally, the dustproof cylinder includes multiple connecting cylinders nested sequentially from the inside out, with any two adjacent connecting cylinders slidingly connected along the extension direction of the dustproof cylinder, and the outermost or innermost connecting cylinder being connected to the shell.

[0017] Optionally, the drilling tool also includes a connecting tube and a recovery unit. One end of the connecting tube is connected to the inner cavity of the recovery unit, and the other end is detachably connected to the inner cavity of the dustproof cylinder. In the dustproof state, the connecting tube is connected to the inner cavity of the dustproof cylinder, and in the storage state, the connecting tube is separated from the dustproof cylinder.

[0018] Optionally, the drilling tool may also include a flexible damping layer and / or a sound insulation layer, which are disposed on the inner wall of the dustproof cylinder.

[0019] Optionally, the drilling tool also includes an adsorption element, which is located at the free end of the dustproof cylinder. In the dustproof state, the adsorption element can adsorb onto the structure to be drilled.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] This invention provides a drilling tool in which the drill bit is located inside the dustproof cylinder in a dustproof state. Dust generated during drilling is contained within the dustproof cylinder, preventing it from spreading into the surrounding space. This effectively reduces dust pollution to the environment and its impact on user health, significantly improving the safety of drilling operations. After drilling is complete, the dustproof cylinder can be switched to a stored state, significantly reducing the storage space occupied by the drilling tool. Furthermore, the dustproof cylinder can move flexibly during drilling, ensuring it remains in close contact with the structure being drilled, guaranteeing the drill bit remains perpendicular to the working surface without deviation, thus ensuring drilling quality. It also does not hinder the drill bit's entry into the structure being drilled, ensuring smooth drilling operations. Attached Figure Description

[0022] Figure 1 An exploded view of the dustproof casing of the drilling tool provided by this utility model when it is in dustproof condition;

[0023] Figure 2 A schematic diagram of the structure of the dustproof cylinder of the drilling tool provided by this utility model when it is in a dustproof state;

[0024] Figure 3A schematic diagram of the structure of the dustproof sleeve of the drilling tool provided by this utility model when it is in the storage state.

[0025] in:

[0026] 100. Structure to be drilled;

[0027] 1. Housing; 2. Drill bit; 3. Dustproof casing; 4. Limiting component; 41. Pressing part. Detailed Implementation

[0028] It should be understood that in the description of this utility model, the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" 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.

[0029] It should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0031] like Figures 1 to 3 As shown, this embodiment provides a drilling tool that effectively reduces the impact of dust on the environment and user health, significantly improves the safety of drilling operations, and ensures drilling quality.

[0032] See Figure 1 and Figure 3 The drilling tool includes a housing 1, a drill bit 2, a dust cover 3, and a limiting member 4. The drill bit 2 is rotatably mounted on the housing 1 about its own axis. The dust cover 3 is mounted on the housing 1, and its free end can move towards or away from the drill bit 2. The dust cover 3 has a dustproof state close to the drill bit 2 and a retracted state away from the drill bit 2. In the dustproof state, the drill bit 2 is at least partially located in the inner cavity of the dust cover 3. In the retracted state, the drill bit 2 is disengaged from the inner cavity of the dust cover 3. The limiting member 4 is mounted on the housing 1 and is used to limit the dust cover 3 to the retracted state.

[0033] In this embodiment, the drilling tool, in its dustproof state, has the drill bit 2 located inside the dustproof cylinder 3. Dust generated during drilling is contained by the dustproof cylinder 3, preventing it from spreading into the surrounding space. This effectively reduces dust pollution to the environment and its impact on user health, significantly improving the safety of drilling operations. After drilling is completed, the dustproof cylinder 3 can be switched to a storage state, significantly reducing the storage space occupied by the drilling tool. Furthermore, the dustproof cylinder 3 can move flexibly during drilling, ensuring it remains in contact with the structure 100 to be drilled, guaranteeing that the drill bit 2 remains perpendicular to the working surface without deviation, thus ensuring drilling quality. It also does not hinder the drill bit 2 from entering the structure 100 to be drilled, ensuring the smooth progress of the drilling operation.

[0034] The free end of the dustproof cylinder 3 is the end of the dustproof cylinder 3 that is close to the drill bit 2.

[0035] For example, the drilling tool is an electric drill.

[0036] In an optional embodiment, see [link to relevant documentation] Figure 1 and Figure 2 The limiting member 4 includes a pressing part 41 movably disposed on the housing 1. In the storage state, the pressing part 41 extends out of the outer surface of the housing 1. The free end of the dustproof tube 3 moves to the side of the pressing part 41 away from the drill bit 2 and contacts the pressing part 41, so that the free end of the dustproof tube 3 cannot move towards the drill bit 2. The dustproof tube 3 is stably limited in the storage state. When the pressing part 41 is released from limiting the dustproof tube 3, the dustproof tube 3 switches from the storage state to the dustproof state.

[0037] Specifically, when it is necessary to release the limiting position of the pressing part 41 on the dustproof cylinder 3, the pressing part 41 is pressed so that the part of the pressing part 41 protruding relative to the outer surface of the housing 1 is inserted into the housing 1, and the pressing part 41 exits from the movement path of the dustproof cylinder 3, so that the dustproof cylinder 3 can switch from the storage state to the dustproof state.

[0038] Specifically, the limiting member 4 also includes an elastic part, one end of which is connected to the housing 1 and the other end is connected to the pressing part 41. When the pressing part 41 is pressed, the portion of the pressing part 41 that protrudes from the outer surface of the housing 1 is inserted into the housing 1, allowing the dustproof cylinder 3 to move closer to the drill bit 2 to switch to the dustproof state; at the same time, the elastic part deforms, accumulating elastic potential energy; after the pressure on the pressing part 41 is released, the elastic part returns to its original deformation, and the pressing part 41 rebounds under the elastic force of the elastic part until it partially protrudes from the outer surface of the housing 1 for the next use.

[0039] For example, the pressing part 41 is a button, and the elastic part is a spring.

[0040] In this embodiment, a guide slope can be provided on the side of the pressing part 41 facing the drill bit 2. When the dustproof tube 3 switches from the dustproof state to the storage state, the free end of the dustproof tube 3 can move away from the drill bit 2 under the guidance of the guide slope, so as to facilitate the free end of the dustproof tube 3 to be retracted to the storage state.

[0041] In another optional embodiment, the limiting member 4 includes a connecting rope and a hook. One end of the connecting rope is disposed near the fixed end of the dustproof cylinder 3, and the other end of the connecting rope is connected to the hook. In the retracted state, the free end of the hook is connected to the free end of the dustproof cylinder 3, which can restrict the free end of the dustproof cylinder 3 from moving towards the drill bit 2, thereby constraining the dustproof cylinder 3. When the hook is separated from the dustproof cylinder 3, the dustproof cylinder 3 switches from the retracted state to the dustproof state, thereby releasing the limiting member 4 from restricting the dustproof cylinder 3.

[0042] The fixed end of the dustproof cylinder 3 is the end that connects the dustproof cylinder 3 to the shell 1, and the free end of the hook is the end away from the connecting rope.

[0043] Optionally, the drilling tool also includes a telescopic support, one end of which is connected to the housing 1 and the other end to the dustproof cylinder 3. When the free end of the dustproof cylinder 3 moves, the dustproof cylinder 3 can drive the telescopic support connected to it to extend and retract, and the telescopic support will not affect the switching of the dustproof cylinder 3 to the retracted state; when the free end of the dustproof cylinder 3 moves to a suitable position, the telescopic support stops extending and retracting. At this time, the telescopic support can provide stable support for the dustproof cylinder 3, effectively avoiding the shaking or extension and retraction of the dustproof cylinder 3 caused by drilling vibration, thus improving the dustproof effect and the anti-deviation effect of drilling.

[0044] In this embodiment, the telescopic support includes multiple telescopic rods, which are arranged at intervals along the circumference of the dustproof cylinder 3, so that the dustproof cylinder 3 can be stably supported in all directions, further reducing the shaking or extension of the dustproof cylinder 3 caused by drilling vibration.

[0045] Specifically, multiple telescopic rods can be installed inside the dustproof cylinder 3 or outside the dustproof cylinder 3.

[0046] Preferably, the telescopic rod is connected to the free end of the dustproof cylinder 3 so that the entire dustproof cylinder 3 can be stably supported when in dustproof condition.

[0047] In an optional embodiment, see [link to relevant documentation] Figure 1 The dustproof cylinder 3 includes a transparent corrugated body, allowing the free end of the dustproof cylinder 3 to move along the axial direction of the drill bit 2. The corrugated body is transparent, allowing the user to observe the movement of the drill bit 2 through the dustproof cylinder 3 in dustproof mode, making it easier for the user to observe the specific situation of the drilling.

[0048] Specifically, see Figure 1The corrugated cylinder body is provided with corrugations, which extend along the axial direction of the dustproof cylinder 3.

[0049] For example, the corrugated cylinder is made of a transparent polymer material such as polytetrafluoroethylene, polycarbonate or acrylic.

[0050] In another optional embodiment, the dust cover 3 is made of rigid material and is slidably fitted onto the housing 1. When the dust cover 3 switches from the stored state to the dust-proof state, the dust cover 3 slides towards the drill bit 2 until the dust cover 3 covers the drill bit 2; when the dust cover 3 switches from the dust-proof state to the stored state, the dust cover 3 slides away from the drill bit 2 until the drill bit 2 is exposed, facilitating operation.

[0051] In this embodiment, the drilling tool further includes a telescopic support member, one end of which is connected to the housing 1, and the other end is connected to the dustproof cylinder 3. The dustproof cylinder 3 can be guided to slide by the telescopic support member.

[0052] In another optional embodiment, the dustproof cylinder 3 includes multiple connecting cylinders arranged sequentially from the inside out. Any two adjacent connecting cylinders are slidably connected along the extension direction of the dustproof cylinder 3. The outermost or innermost connecting cylinder is connected to the shell 1. When the outer connecting cylinder slides relative to the adjacent inner connecting cylinder, the total length between the two connecting cylinders changes, thereby changing the extension length of the dustproof cylinder 3.

[0053] In this embodiment, the innermost connecting cylinder is connected to the shell 1. In the dustproof state, the outermost connecting cylinder is in contact with the structure to be drilled 100. In the storage state, multiple connecting cylinders are stacked and nested on top of each other.

[0054] In other embodiments, the outermost connecting cylinder is connected to the shell 1. In the dustproof state, the innermost connecting cylinder is in contact with the structure to be drilled 100. In the storage state, multiple connecting cylinders are stacked and nested on each other, and several connecting cylinders other than the outermost connecting cylinder are stored in the inner cavity of the outermost connecting cylinder.

[0055] Specifically, one of the two adjacent connecting cylinders is provided with a sliding groove extending along the extension direction of the dustproof cylinder 3, and the other of the two adjacent connecting cylinders is provided with a slider that slides in cooperation with the sliding groove, so as to realize the sliding connection of the two adjacent connecting cylinders.

[0056] Optionally, the drilling tool also includes a connecting pipe and a recovery component. One end of the connecting pipe is connected to the inner cavity of the recovery component, and the other end is detachably connected to the inner cavity of the dustproof cylinder 3. In the dustproof state, the connecting pipe is connected to the inner cavity of the dustproof cylinder 3; in the storage state, the connecting pipe is separated from the dustproof cylinder 3. In the dustproof state, the connecting pipe is connected to the inner cavity of the dustproof cylinder 3, and the dust in the inner cavity of the dustproof cylinder 3 can be recovered to the recovery component through the connecting pipe. This not only achieves immediate dust recovery but also effectively prevents dust from accumulating in the inner cavity of the dustproof cylinder 3, thus avoiding affecting the rotation of the drill bit 2. In the storage state, the connecting pipe is separated from the dustproof cylinder 3 to prevent the connecting pipe from affecting the movement of the dustproof cylinder 3.

[0057] Specifically, a branch pipe extends from the side wall of the dust cover 3, and this branch pipe is inserted into the opening of the connecting pipe to achieve the connection and separation of the connecting pipe and the dust cover 3.

[0058] In this embodiment, the drilling tool also includes a dust suction component disposed on the recovery component, which is used to suck the dust in the inner cavity of the dustproof cylinder 3 into the recovery component.

[0059] Specifically, the recycling unit is equipped with a dust discharge port, and a filter screen is installed at the dust discharge port. Dust drawn into the recycling unit from the inner cavity of the dustproof cylinder 3 can be discharged through the filter screen, effectively avoiding secondary dust pollution during the recycling process.

[0060] For example, the recyclable parts are recycling bins or recycling containers, and the vacuuming parts are vacuum cleaners.

[0061] Optionally, the drilling tool also includes a flexible damping layer disposed on the inner wall of the dustproof cylinder 3. During drilling, the rotation of the drill bit 2 generates an impact force, which causes the housing 1 to vibrate, potentially even causing the drill bit 2 to collide with the dustproof cylinder 3. The flexible damping layer not only effectively buffers the impact of the aforementioned impact force on the dustproof cylinder 3, but also reduces the damage to the dustproof cylinder 3 when the drill bit 2 collides with it, thereby improving the service life of the dustproof cylinder 3.

[0062] For example, the flexible damping layer is made of rubber or fleece.

[0063] Optionally, the drilling tool also includes a sound insulation layer disposed on the inner wall of the dustproof cylinder 3 to reduce the noise generated by the drill bit 2 during operation.

[0064] For example, the sound insulation layer is made of sound-absorbing cotton.

[0065] Optionally, the drilling tool also includes a flexible damping layer and a sound insulation layer.

[0066] Specifically, a flexible damping layer and a sound insulation layer are stacked on the inner wall of the dustproof cylinder 3. Preferably, the sound insulation layer is disposed between the flexible damping layer and the inner wall of the dustproof cylinder 3.

[0067] Optionally, the drilling tool also includes an adsorption element, which is disposed at the free end of the dustproof cylinder 3. In the dustproof state, the adsorption element can adsorb onto the structure 100 to be drilled, so that the free end of the dustproof cylinder 3 can stably contact the structure 100 to be drilled during the drilling process, and there will be no displacement or dust leakage between them, thereby improving the dustproof effect and the anti-deviation effect of drilling.

[0068] In this embodiment, the cross-sectional shape of the adsorption element is annular, and the diameter of the annular adsorption element is the same as the diameter of the dustproof cylinder 3, so that the dustproof cylinder 3 can stably contact the structure 100 to be drilled in all circumferences.

[0069] For example, the adsorption element is a magnetic strip or an adhesive strip. When the structure 100 to be drilled is made of a metallic material, the adsorption element is a magnetic strip, which can magnetically adhere to the structure 100 to be drilled; when the structure 100 to be drilled is made of a non-metallic material, the adsorption element is an adhesive strip, which can be glued to the structure 100 to be drilled.

[0070] Optionally, the drilling tool also includes a sealing ring, which is disposed at the free end of the dustproof cylinder 3, so that in the dustproof state, the dustproof cylinder 3 can be sealed to the structure 100 to be drilled through the sealing ring, thereby reducing the gap between the dustproof cylinder 3 and the structure 100 to be drilled and further preventing the occurrence of dust leakage.

[0071] For example, the sealing ring is a rubber ring, which is fixed to the free end of the dustproof cylinder 3 by vulcanization.

[0072] The above description is only a specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Those skilled in the art should understand that any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model fall within the protection and disclosure scope of the present utility model.

Claims

1. A drilling tool, characterized in that, include: A housing (1) and a drill bit (2), wherein the drill bit (2) is rotatably disposed on the housing (1) about its own axis; A dustproof cylinder (3) is disposed in the housing (1). The free end of the dustproof cylinder (3) can move toward or away from the drill bit (2). The dustproof cylinder (3) has a dustproof state that is close to the drill bit (2) and a storage state that is away from the drill bit (2). In the dustproof state, the drill bit (2) is at least partially located in the inner cavity of the dustproof cylinder (3). In the storage state, the drill bit (2) is detached from the inner cavity of the dustproof cylinder (3). A limiting member (4) is provided on the housing (1) to limit the dustproof cylinder (3) to the storage state.

2. The drilling tool according to claim 1, characterized in that, The limiting member (4) includes a pressing part (41) movably disposed on the housing (1). In the storage state, the free end of the dustproof cylinder (3) moves to the side of the pressing part (41) away from the drill bit (2) and contacts the pressing part (41). When the pressing part (41) is released from limiting the dustproof cylinder (3), the dustproof cylinder (3) switches from the storage state to the dustproof state.

3. The drilling tool according to claim 1, characterized in that, The limiting member (4) includes a connecting rope and a hook. One end of the connecting rope is located near the fixed end of the dustproof cylinder (3), and the other end of the connecting rope is connected to the hook. In the storage state, the free end of the hook is connected to the free end of the dustproof cylinder (3).

4. The drilling tool according to claim 1, characterized in that, The drilling tool also includes a telescopic support, one end of which is connected to the housing (1) and the other end is connected to the dustproof cylinder (3).

5. The drilling tool according to claim 4, characterized in that, The telescopic support includes multiple telescopic rods, which are arranged at intervals along the circumference of the dustproof cylinder (3).

6. The drilling tool according to claim 1, characterized in that, The dustproof cylinder (3) includes a transparent corrugated cylinder body.

7. The drilling tool according to claim 1, characterized in that, The dustproof cylinder (3) includes multiple connecting cylinders arranged sequentially from the inside to the outside. Any two adjacent connecting cylinders are slidably connected along the extension direction of the dustproof cylinder (3). The outermost connecting cylinder or the innermost connecting cylinder is connected to the shell (1).

8. The drilling tool according to claim 1, characterized in that, The drilling tool also includes a connecting pipe and a recovery component. One end of the connecting pipe is connected to the inner cavity of the recovery component, and the other end is detachably connected to the inner cavity of the dustproof cylinder (3). In the dustproof state, the connecting pipe is connected to the inner cavity of the dustproof cylinder (3), and in the storage state, the connecting pipe is separated from the dustproof cylinder (3).

9. The drilling tool according to claim 1, characterized in that, The drilling tool also includes a flexible damping layer and / or a sound insulation layer, which are disposed on the inner wall of the dustproof cylinder (3).

10. The drilling tool according to claim 1, characterized in that, The drilling tool also includes an adsorption element, which is disposed at the free end of the dustproof cylinder (3). In the dustproof state, the adsorption element can adsorb onto the structure (100) to be drilled.

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