Conversion device for realizing angle grinder function of electric hand drill and use method

Abstract

The invention relates to the technical field of electric hand drills, in particular to a conversion device enabling an electric hand drill to achieve the function of an angle grinder and a using method.The conversion device comprises an electric hand drill body, and a driving device is arranged in the electric hand drill body; a chuck structure matched with the electric hand drill main body is arranged at one end of the connecting rod, and the connecting rod is used for being connected with the electric hand drill main body in a rotating mode and can bear the torque from the driving device; and the lower pressing plate is provided with a crescent structure matched with the connecting rod. The electric hand drill has the beneficial effect that the electric hand drill mode and the angle grinder mode can be freely switched according to different operation requirements. Specifically, when drilling operation needs to be carried out, a user can install a standard drill bit; when a grinding or cutting task is executed, the grinding disc or the cutting disc can be replaced by a special grinding disc or a special cutting disc through simple operation. According to the design, the flexibility and the application range of the tool are greatly improved, and the economic burden of a user is remarkably reduced.

Description

Technical Field

[0001] The invention relates to the technical field of hand-held electric drills, and in particular to a conversion device for realizing the function of an angle grinder with a hand-held electric drill and a use method thereof. Background Art

[0002] The hand drill is the most widely used product in the power tool industry, and is used to make holes in objects or penetrate objects. The angle grinder is a common power tool. The electric angle grinder uses high-speed rotating thin-blade grinding wheels, rubber grinding wheels, wire wheels, etc. to grind, cut, rust remove, and polish metal components.

[0003] Both play an important role in various fields, but there is no compatibility between the two. Operators need to carry two sets of power tools in daily production operations, which brings great inconvenience to users. Summary of the invention

[0004] Some simplifications or omissions may be made in this section and the abstract and title of the present application to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0005] The object of the present invention is to provide a conversion device which enables a hand electric drill to realize the function of an angle grinder.

[0006] Therefore, the purpose is to solve the problem that the hand drill and the angle grinder are not compatible and inconvenient to carry.

[0007] To solve the above technical problems, the present invention provides the following technical solutions: a conversion device that enables a hand drill to function as an angle grinder, comprising a hand drill body, wherein a driving device is arranged inside the hand drill body; a connecting rod, one end of which is provided with a chuck structure matching the hand drill body, for being connected to the hand drill body by rotation and capable of withstanding the torque from the driving device; a lower pressing plate, wherein the lower pressing plate has a crescent-shaped structure that cooperates with the connecting rod, and when the connecting rod is connected to the hand drill body, the crescent-shaped structure engages with the notch on the connecting rod; a grinding disc, wherein the grinding disc is replaceably installed under the lower pressing plate; and an upper pressing plate, wherein the upper pressing plate is threadedly connected to the connecting rod and is used to fix the lower pressing plate and the grinding disc.

[0008] As a preferred solution of the conversion device of the present invention for converting a hand drill into an angle grinder, the notches are distributed radially along the connecting rod, and the notches are designed as concave structures, which are used to engage with the crescent-shaped structure.

[0009] As a preferred solution of the conversion device of the present invention for converting a hand drill into an angle grinder, the central opening of the lower pressing plate has a hole diameter slightly larger than the diameter of the connecting rod.

[0010] As a preferred solution of the conversion device of the present invention for converting a hand drill into an angle grinder, the bottom surface of the lower pressing plate is designed to be flat for supporting the grinding disc.

[0011] As a preferred solution of the conversion device of the present invention for converting a hand drill into an angle grinder, the upper pressure plate is designed with a center hole, and an internal thread is provided in the hole, which matches the external thread at the other end of the connecting rod. The upper pressure plate can be fastened to the connecting rod by rotating it.

[0012] As a preferred solution of the conversion device of the present invention for converting a hand drill into an angle grinder, the surfaces opposite to the upper pressing plate and the lower pressing plate are provided with planes for clamping the grinding disc.

[0013] As a preferred solution of the conversion device of the present invention for converting a hand-held electric drill to function as an angle grinder, the hand-held electric drill body is also equipped with a speed regulator for adjusting the output speed of the driving device.

[0014] As a preferred solution of the conversion device of the present invention for converting a hand drill into an angle grinder, wherein:

[0015] As a preferred solution of the conversion device of the present invention for realizing the function of an angle grinder with a hand-held electric drill, the hand-held electric drill body further includes a rechargeable battery pack and an indicator light.

[0016] As a preferred solution of the conversion device of the present invention for converting a hand drill into an angle grinder, a vibration-damping pad made of elastic material is arranged between the upper pressing plate and the lower pressing plate.

[0017] In order to solve the above technical problems, the present invention also provides the following technical solutions: a method for using a conversion device that enables a hand drill to function as an angle grinder, comprising a conversion device that enables a hand drill to function as an angle grinder, and,

[0018] Screw the threaded end of the connecting rod into the front interface of the hand drill body until it is tightened, ensuring that a solid connection is formed between the connecting rod and the hand drill body, and the torque from the internal drive device of the hand drill body can be effectively transmitted;

[0019] Check whether the notch on the connecting rod is aligned with the crescent-shaped structure of the lower pressure plate to ensure that the two can bite accurately and ensure the stability of the connection;

[0020] Select a suitable grinding disc according to the properties of the material to be ground, and place it flat under the lower pressing plate, ensuring that the contact surface between the grinding disc and the lower pressing plate is flat and has no gap;

[0021] The upper pressing plate is placed on the lower pressing plate, and the upper pressing plate, the lower pressing plate and the grinding disc are tightly fixed together to form a stable assembly structure.

[0022] The beneficial effect of the present invention is that the present invention can freely switch between the hand drill mode and the angle grinder mode according to different operation requirements. Specifically, when drilling is required, the user can install a standard drill bit; and when performing grinding or cutting tasks, a dedicated grinding disc or cutting disc can be replaced through simple operations. This design not only greatly improves the flexibility and application range of the tool, but also significantly reduces the economic burden of the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0024] Figure 1 It is a schematic diagram of the explosion structure in the present invention.

[0025] Figure 2 It is a schematic diagram of the overall combined structure of the present invention.

[0026] Figure 3 It is a schematic diagram of the top view structure of the grinding plate in the present invention.

[0027] In the figure:

[0028] 100, connecting rod; 101, lower pressure plate; 102, crescent-shaped structure; 103, notch; 104, grinding disc; 105, upper pressure plate. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0030] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0032] Example 1

[0033] Reference Figure 1-2 , which is the first embodiment of the present invention, and provides a conversion device for realizing the function of an angle grinder with a hand drill, including a hand drill body, a driving device is arranged inside the hand drill body; a connecting rod 100, one end of which is provided with a chuck structure matching the hand drill body, which is used to be connected to the hand drill body by rotation and can withstand the torque from the driving device; a lower pressing plate 101, the lower pressing plate 101 has a crescent-shaped structure 102 matched with the connecting rod 100, when the connecting rod 100 is connected to the hand drill body, the crescent-shaped structure 102 is engaged with the notch 103 on the connecting rod 100 to ensure a stable connection; a grinding disc 104, the grinding disc 104 is replaceably installed under the lower pressing plate 101; an upper pressing plate 105, which is used to fix the lower pressing plate 101 and the grinding disc 104.

[0034] In this embodiment, the hand drill body is the basic part of the entire conversion device, and a driving device is arranged inside, which is usually composed of a motor and a gear transmission system. The motor transmits the rotational kinetic energy to the output shaft through the gear transmission system, and the output shaft then transmits the power to the grinding disc 104 through the connecting rod 100 to achieve grinding or drilling operations.

[0035] One end of the connecting rod 100 is designed with a chuck structure that matches the hand drill body. By rotating, the connecting rod 100 can be firmly connected to the hand drill body and can effectively transmit the torque from the driving device. In order to ensure the stability and reliability of the connection.

[0036] The lower pressing plate 101 is an important component installed at the other end of the connecting rod 100, and has a crescent-shaped structure 102, which is designed to engage with a specific notch 103 on the connecting rod 100. When the connecting rod 100 is successfully connected to the hand drill body, the crescent-shaped part of the lower pressing plate 101 will be embedded in the notch 103 of the connecting rod 100, forming a locking mechanism to ensure the stability of the grinding disc 104 during high-speed operation. In addition, the lower pressing plate 101 ensures that the grinding disc 104 can be accurately positioned.

[0037] The function of the upper pressing plate 105 is to further enhance the overall stability of the lower pressing plate 101 and the grinding disc 104. During the installation process, the upper pressing plate 105 covers the grinding disc 104 and the lower pressing plate 101, and is threadedly fixed together with the connecting rod 100 to form a closed and compact overall structure. This can not only prevent the grinding disc 104 from loosening or falling off during operation, but also effectively reduce vibration, thereby improving work efficiency and safety.

[0038] When the hand drill is needed for grinding, first screw the connecting rod 100 into the interface of the hand drill body to ensure that the two are tightly combined. Next, place the selected grinding disc 104 on the lower pressing plate 101 and fix it with the upper pressing plate 105. At this point, the entire conversion device has been assembled. Turn on the power of the hand drill, the motor starts to run and adjusts the speed to a suitable range through the speed regulator, and then transmits it to the grinding disc 104 through the connecting rod 100, so that it produces high-speed rotation. The operator only needs to control the direction and strength of the hand drill to achieve effective cutting of the target object.

[0039] This technical solution designs a quick-change conversion device that can switch freely between the hand drill mode and the angle grinder mode according to different working requirements. Specifically, when drilling is required, the user can install a standard drill bit; when performing grinding or cutting tasks, it can be replaced with a dedicated grinding disc or cutting disc through simple operations. This design not only greatly improves the flexibility and scope of application of the tool, but also significantly reduces the economic burden on users.

[0040] Example 2

[0041] Reference Figure 1-3 , which is the second embodiment of the present invention, and this embodiment provides a conversion device that converts a hand drill into an angle grinder. The notches 103 are radially distributed along the connecting rod 100, and the notches 103 are designed to be a concave structure, which is used to engage with the crescent-shaped structure 102. The lower pressing plate 101 has a central opening, and the aperture is slightly larger than the diameter of the connecting rod 100 for easy installation. The bottom surface of the lower pressing plate 101 is designed to be flat for supporting the grinding disc 104. The upper pressing plate 105 is designed with a central hole, and an internal thread is provided in the hole. The thread matches the external thread at the other end of the connecting rod 100, and the upper pressing plate 105 can be fastened to the connecting rod 100 by rotating it. The upper pressing plate 105 is provided with a plane for clamping the grinding disc 104 on the opposite surface to the lower pressing plate 101. It is used to ensure close contact between the two, and then the grinding disc 104 is tightly clamped in the middle.

[0042] In this embodiment, the connecting rod 100 not only bears the function of connecting the upper and lower pressing plates, but also the concave structure distributed radially thereon engages with the crescent-shaped structure 102, thereby ensuring the stability of the grinding disc 104 under high-speed rotation. The lower pressing plate 101 is designed with a center hole, the diameter of which is slightly larger than the diameter of the connecting rod 100, which is convenient for installation; the bottom is flat, providing a stable support surface, ensuring that the grinding disc 104 can be evenly stressed, and avoiding damage to the grinding disc 104 or poor use effect due to excessive local pressure. The upper pressing plate 105 is also provided with a center hole, and an internal thread matching the end of the connecting rod 100 is configured in the hole. By rotating the upper pressing plate 105, the grinding disc 104 can be tightened to ensure its safety and reliability during use. A plane for clamping the grinding disc 104 is designed between the upper pressing plate 105 and the lower pressing plate 101, further enhancing the fixing effect.

[0043] Considering factors such as strength, wear resistance and cost, the connecting rod 100, the upper and lower parts and the pressing plate are usually made of high-strength stainless steel or aluminum alloy. These materials not only have good mechanical properties, but also are light in weight, which helps to reduce the burden of the overall equipment.

[0044] Example 3

[0045] Reference Figure 2 , which is the third embodiment of the present invention, provides a conversion device for realizing the function of an angle grinder with a hand drill, and the hand drill body is also equipped with a speed regulator for adjusting the output speed of the driving device. The hand drill body also includes a rechargeable battery pack and an indicator light for displaying the remaining battery power. A vibration damping pad made of elastic material is arranged between the upper pressing plate 105 and the lower pressing plate 101.

[0046] In this embodiment, the speed regulator is installed on the main body of the hand drill, and the speed of the hand drill motor is adjusted to meet the needs of opening holes or cutting different materials. The speed regulation range is wide, and it can be smoothly adjusted from low speed to high speed to ensure the safety and efficiency of operation. The rechargeable battery pack provides a power source for the hand drill. It uses a high-capacity lithium battery with fast charging characteristics, which extends the continuous working time of the equipment. The indicator light is located near the handle of the hand drill, and displays the remaining battery power in real time, which is convenient for users to understand the power status and charge in time, avoiding work interruptions due to insufficient power. A layer of vibration-damping pad made of elastic material (such as rubber) is sandwiched between the upper pressure plate 105 and the lower pressure plate, which effectively absorbs vibration, reduces the impact of long-term use on the wrist, and improves operating comfort.

[0047] A method for using a conversion device that converts a hand drill into an angle grinder. According to your specific work requirements, such as cutting or drilling, select a suitable grinding disc 104 or drill bit. Screw the part with the chuck structure at one end of the connecting rod 100 into the interface of the hand drill body to ensure that the two are tightly combined. Place the selected grinding disc 104 flat on the lower pressing plate 101, ensuring that the crescent-shaped structure 102 of the lower pressing plate 101 is engaged with the notch 103. Cover the upper pressing plate 105 above the grinding disc 104 and the lower pressing plate 101, and then tighten it with the threaded part of the connecting rod 100 to ensure that all parts are tightly connected to reduce vibration during work and improve safety.

[0048] Switching Mode

[0049] Switch from cutting mode to drilling mode: turn off the power of the hand drill, loosen the upper pressure plate 105, remove the grinding disc 104 and the connecting rod 100, and install a standard drill bit.

[0050] Switching from drilling mode to cutting mode: This process is the opposite of the above, that is, first remove the drill bit, and then follow the steps of installing the grinding disc 104 as described above.

[0051] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0052] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0053] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0054] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A device for converting a hand drill into an angle grinder, characterized in that: include, A hand drill body, wherein a driving device is arranged inside the hand drill body; A connecting rod (100), one end of which is provided with a chuck structure matching the main body of the hand-held electric drill, used for being connected to the main body of the hand-held electric drill in a rotational manner and capable of bearing torque from the driving device; A lower pressing plate (101), the lower pressing plate (101) having a crescent-shaped structure (102) matched with the connecting rod (100), and when the connecting rod (100) is connected to the hand electric drill body, the crescent-shaped structure (102) engages with the notch (103) on the connecting rod (100); A grinding plate (104), wherein the grinding plate (104) is replaceably mounted below the lower pressing plate (101); An upper pressing plate (105) is threadedly connected to the connecting rod (100) and is used to fix the lower pressing plate (101) and the grinding disc (104).

2. A device for converting a hand drill into an angle grinder as claimed in claim 1, characterized in that: The notches (103) are distributed radially along the connecting rod (100), and the notches (103) are designed to be concave structures.

3. A device for converting a hand drill into an angle grinder as claimed in claim 2, characterized in that: The central opening of the lower pressing plate (101) has a hole diameter slightly larger than the diameter of the connecting rod (100).

4. A device for converting a hand drill into an angle grinder as claimed in claim 3, characterized in that: The bottom surface of the lower pressing plate (101) is designed to be flat for supporting the grinding plate (104).

5. The device for converting a hand drill into an angle grinder as claimed in claim 4, characterized in that: The upper pressing plate (105) is designed with a central hole, and an internal thread is arranged in the hole, and the thread matches the external thread of the other end of the connecting rod (100).

6. A device for converting a hand drill into an angle grinder as claimed in claim 5, characterized in that: The upper pressing plate (105) and the lower pressing plate (101) are provided with a flat surface on the opposite side thereof for clamping the grinding disc (104).

7. The device for converting a hand drill into an angle grinder according to claim 1, characterized in that: The main body of the hand drill is also equipped with a speed regulator for adjusting the output speed of the driving device.

8. The device for converting a hand drill into an angle grinder according to claim 7, characterized in that: The main body of the hand drill also includes a rechargeable battery pack, and an indicator light.

9. A device for converting a hand drill into an angle grinder as claimed in claim 8, characterized in that: A vibration-damping pad made of elastic material is arranged between the upper pressing plate (105) and the lower pressing plate (101).

10. A method for using a conversion device that converts a hand drill into an angle grinder, characterized in that: The invention comprises a conversion device for converting a hand drill into an angle grinder as claimed in any one of claims 1 to 9, and Screw the threaded end of the connecting rod into the front interface of the hand drill body until it is tightened, ensuring that a solid connection is formed between the connecting rod and the hand drill body, and the torque from the internal drive device of the hand drill body can be effectively transmitted; Check whether the notch on the connecting rod is aligned with the crescent-shaped structure of the lower pressure plate to ensure that the two can bite accurately and ensure the stability of the connection; Select a suitable grinding disc according to the properties of the material to be ground, and place it flat under the lower pressing plate, ensuring that the contact surface between the grinding disc and the lower pressing plate is flat and has no gap; The upper pressing plate is placed on the lower pressing plate, and the upper pressing plate, the lower pressing plate and the grinding disc are tightly fixed together to form a stable assembly structure.

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