Electric tool

Abstract

The utility model discloses an electric tool which comprises a main machine and a holding part, the top end of the holding part is connected with the lower end of the main machine, a battery pack mounting part is formed at the bottom end of the holding part, the top end of the holding part extends forwards to form a first connecting part, and the front end of the battery pack mounting part extends upwards to form a second connecting part. An auxiliary support is arranged between the first connecting part and the second connecting part, the auxiliary support, the first connecting part, the holding part, the battery pack mounting part and the second connecting part are combined to form a D-shaped handle, the top end of the auxiliary support is rotationally connected with the first connecting part, and the bottom end of the auxiliary support is detachably connected with the second connecting part. The electric tool has the function of the auxiliary handle, the parts of the electric tool can serve as the auxiliary handle, and the trouble caused by additionally installing an auxiliary handle is effectively avoided; the electric tool has the function of the D-shaped handle, the combined D-shaped handle not only can protect the holding hand, but also can improve the strength of the machine, and the stability of the machine is improved.

Description

Technical Field

[0001] This utility model relates to the field of power tools, specifically to a power tool with an auxiliary handle function and a D-shaped handle function. Background Technology

[0002] Power tools are mechanized tools powered by electric motors or electromagnets, which drive the working head through a transmission mechanism. They are typically handheld or portable, characterized by their lightweight structure, portability, and flexibility of use. In modern industrial production and the construction industry, the application of power tools is becoming increasingly widespread, but this also brings with it a growing number of challenges.

[0003] In the current market, to cope with increasingly heavy workloads, the demand for increased torque in power tools, such as electric wrenches, is also growing. However, while increasing torque, power tools also experience increased vibration. In existing technology, to avoid excessive vibration affecting the normal use of power tools, auxiliary handles are usually added. While this makes using power tools more convenient, it also brings a series of problems, such as: the addition of auxiliary handles increases the number of parts, thus increasing user costs; the auxiliary handle requires secondary assembly, which is time-consuming and labor-intensive; and the auxiliary handle is often inconvenient to carry, making it difficult to use the power tool itself. Utility Model Content

[0004] Purpose of this utility model: The purpose of this utility model is to provide a power tool that solves the problems of increased usage costs, time-consuming and laborious secondary assembly, and inconvenience in carrying the auxiliary handle caused by adding an extra handle to the power tool. This power tool has an auxiliary handle function, where its own components can act as an auxiliary handle, effectively avoiding the trouble caused by adding an extra handle; this power tool also has a D-shaped handle function, the combined D-shaped handle not only protects the hand holding the tool but also increases the strength and stability of the machine.

[0005] Technical solution: A power tool includes a main unit and a gripping part. The power tool also includes an auxiliary bracket rotatably connected to the gripping part, and the auxiliary bracket is rotatable relative to the gripping part.

[0006] Further: The top end of the grip is connected to the bottom end of the main unit, the bottom end of the grip forms a battery pack mounting part, the top end of the grip extends forward to form a first connecting part, the front end of the battery pack mounting part extends upward to form a second connecting part, and the auxiliary bracket is provided between the first connecting part and the second connecting part;

[0007] The top of the auxiliary support is rotatably connected to the first connecting part;

[0008] The bottom end of the auxiliary bracket is detachably connected to the second connecting part.

[0009] Furthermore, the top of the auxiliary support is rotatably connected to the first connecting part through a single-axis connector. The single-axis connector includes a round shaft, which is arranged in the front-back direction. One end of the round shaft is connected to the first connecting part in a manner that allows it to rotate left and right, and the other end is connected to the top of the auxiliary support.

[0010] Furthermore, the top of the auxiliary bracket and the first connecting part are rotatably connected by a universal connector, which is a universal ball joint connector.

[0011] Furthermore: when the bottom end of the auxiliary bracket is directly above the top end of the second connecting part, the bottom end surface of the auxiliary bracket and the top end surface of the second connecting part are in contact with each other.

[0012] Furthermore: a first magnet is embedded at the bottom of the auxiliary support, and a second magnet is embedded at the top of the second connecting part, with the bottom of the first magnet and the top of the second magnet attracting each other.

[0013] Furthermore: the bottom surface of the first magnet is flush with the bottom surface of the auxiliary support, and the top surface of the second magnet is flush with the top surface of the second connecting part.

[0014] Furthermore, the auxiliary bracket has a groove at its bottom end, and the second connecting part has an elastic element at its top end. When the auxiliary bracket rotates so that its bottom end is directly above the top end of the second connecting part, the elastic element is engaged in the groove.

[0015] Furthermore: During the rotation of the auxiliary support, the elastic element can be compressed and deformed when it is squeezed by the bottom end of the auxiliary support. When the bottom end of the auxiliary support no longer squeezes the elastic element, the elastic element returns to its original shape.

[0016] Furthermore: When the bottom end of the auxiliary bracket is directly above the top end of the second connecting part, the auxiliary bracket, together with the first connecting part, the gripping part, the battery pack mounting part, and the second connecting part, forms a D-shaped handle.

[0017] The beneficial effects of this utility model are:

[0018] 1. The power tool of this application has an auxiliary handle function. The auxiliary bracket on the power tool can not only rotate in the left and right directions to act as an auxiliary handle, but also rotate in other directions besides left and right to act as an auxiliary handle. While making the use of the power tool more convenient, it can also effectively avoid the trouble caused by adding an extra auxiliary handle.

[0019] 2. The power tool of this application has a D-shaped handle function. The auxiliary bracket on the power tool can be combined with the first connecting part, the grip part, the battery pack mounting part and the second connecting part to form a D-shaped handle. The combined D-shaped handle can not only protect the hand holding it, but also increase the strength and stability of the machine.

[0020] 3. This application utilizes the mutual attraction between the first and second magnets and the elastic element engaging in the groove to provide a good auxiliary support limiting function. This effectively prevents the auxiliary support from rotating unnecessarily when it is not acting as an auxiliary handle. At the same time, the limiting function of the auxiliary support ensures that when it is not acting as an auxiliary handle, it always combines with the first connecting part, the gripping part, the battery pack mounting part, and the second connecting part to form a D-shaped handle. This D-shaped handle not only protects the hand holding the machine but also increases the strength and stability of the machine. Attached Figure Description

[0021] Figure 1 A schematic diagram showing the rotatable connection between the auxiliary bracket and the first connecting part via a universal joint;

[0022] Figure 2 A schematic diagram showing the rotatable connection between the auxiliary bracket and the first connecting part via a single-axis connector;

[0023] Figure 3 A schematic diagram showing the positions of the first magnet and the second magnet;

[0024] Figure 4 This is a schematic diagram showing the positions of the groove and the elastic element;

[0025] Figure 5 This is a top view of an electric tool according to the present invention;

[0026] In the diagram: 1. Main unit; 2. Grip part; 3. Auxiliary bracket; 4. Battery pack mounting part; 5. First connecting part; 6. Second connecting part; 7. Single-axis connector; 8. Universal connector; 9. First magnet; 10. Second magnet; 11. Groove; 12. Elastic element. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0028] Those skilled in the art will understand that, without conflict, the features in the following embodiments and implementations can be combined with each other.

[0029] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. For example, terms such as "upper," "lower," "front," and "rear," which indicate orientation or positional relationship, are based solely on the orientation or positional relationship shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device / component referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0030] As used herein, the singular forms “a,” “an,” and “the” include plural objects, and the plural form “multiple” includes two or more objects, unless otherwise expressly indicated. As used herein, the term “or” is generally used to include the meaning of “and / or,” unless otherwise expressly indicated, and the terms “install,” “connect,” and “link” should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection. Connections can be direct or indirect through an intermediate medium, and can be internal communication between two components or an interaction between two components.

[0031] The power tools described in this application include, but are not limited to, power wrenches, electric drills, etc., which are further described below with reference to the accompanying drawings and embodiments:

[0032] like Figure 1-5 As shown, a power tool includes a main unit 1 and a gripping part 2 disposed at the lower end of the main unit 1.

[0033] The main unit 1 of this application is used to realize wrench functions, drilling functions, etc. If the power tool of this application is an electric wrench, its main unit 1 is used to realize the wrench function, such as tightening or loosening bolts and nuts. The main unit 1 of the electric wrench is mainly composed of a motor, a transmission structure, a wrench head, etc. Its working principle is that the motor drives the transmission mechanism to rotate, which in turn drives the wrench head to rotate, so as to achieve the purpose of tightening or loosening bolts and nuts. Since the technology of the main unit 1 of the electric wrench is relatively mature in the prior art, the details of the main unit 1 of the electric wrench will not be described in detail here.

[0034] The grip part 2 of this application is used for the user's hand to hold and control the main unit 1. The power tool of this application also includes an auxiliary bracket 3 rotatably connected to the grip part 2. The auxiliary bracket 3 can rotate relative to the grip part 2 and acts as an auxiliary handle for assisting gripping. Since the grip part 2 is connected to the main unit 1, the rotation of the auxiliary bracket 3 relative to the grip part 2 can also be regarded as the rotation of the auxiliary bracket 3 relative to the main unit 1.

[0035] The top of the grip portion 2 is connected to the lower end of the main unit 1 casing. A battery pack mounting portion 4 is formed at the bottom of the grip portion 2. A first connecting portion 5 extends forward from the top of the grip portion 2, and a second connecting portion 6 extends upward from the front end of the battery pack mounting portion 4. An auxiliary bracket 3 is disposed between the first connecting portion 5 and the second connecting portion 6. The auxiliary bracket 3 can be combined with the first connecting portion 5, the grip portion 2, the battery pack mounting portion 4, and the second connecting portion 6 to form a D-shaped handle. The first connecting portion 5 can also be connected to the lower end of the main unit 1 casing. The first connecting portion 5 can be formed not only by extending forward from the top of the grip portion 2 but also by extending downward from the main unit 1 casing. The battery pack mounting portion 4 is used to mount the battery pack and supply power to the main unit 1.

[0036] The auxiliary bracket 3 of this application is rotatably connected to the first connecting part 5. In the prior art, rotatable connections include single-axis rotatable connections and universal rotatable connections (also known as multi-axis rotatable connections). The rotatable connection between the top of the auxiliary bracket 3 and the first connecting part 5 of this application can adopt either single-axis rotatable connection technology or universal rotatable connection technology. When the rotatable connection between the top of the auxiliary bracket 3 and the first connecting part 5 of this application adopts single-axis rotatable connection technology, the auxiliary bracket 3 can rotate left and right relative to the grip part 2, acting as an auxiliary handle. When the rotatable connection between the top of the auxiliary bracket 3 and the first connecting part 5 of this application adopts universal rotatable connection technology, the auxiliary bracket 3 can rotate not only left and right relative to the grip part 2, but also in other directions such as front and back, acting as an auxiliary handle.

[0037] like Figure 2 As shown, the top end of the auxiliary support 3 and the first connecting part 5 can be rotatably connected via a single-axis connector 7, allowing the auxiliary support 3 to rotate left and right. The single-axis connector 7 includes a circular shaft arranged along the front-rear direction. One end of the circular shaft along its length is connected to the first connecting part 5 in a manner that allows it to rotate left and right circumferentially relative to the first connecting part 5. The other end of the circular shaft along its length is fixedly connected to the top end of the auxiliary support 3, allowing the auxiliary support 3 to rotate left and right based on the circular shaft, specifically, based on the central axis of the circular shaft.

[0038] like Figure 1 , 3As shown in Figure 4, the top of the auxiliary bracket 3 and the first connecting part 5 can also be rotatably connected via a universal connector 8. The auxiliary bracket 3 can rotate not only left and right but also forward and backward in other directions via the universal connector 8. The universal connector 8 in this application uses a universal ball joint connector. In the prior art, a universal ball joint connector typically includes a spherical component (sphere) and a corresponding concave component (socket), which, when combined, can achieve omnidirectional rotation. In the universal ball joint connector, the center of rotation of the sphere is the geometric center of the sphere itself. The auxiliary bracket 3 can rotate in multiple directions around the geometric center of its sphere based on the universal ball joint connector.

[0039] In addition to the structure described above, other structures can also be used to achieve a rotatable connection between the auxiliary support 3 and the first connecting part 5.

[0040] The auxiliary bracket 3 of this application can rotate relative to the grip 2. When the auxiliary bracket 3 rotates and its bottom end is directly above the top end of the second connecting part 6, the bottom end surface of the auxiliary bracket 3 and the top end surface of the second connecting part 6 are in contact with each other. At this time, the auxiliary bracket 3, the first connecting part 5, the grip 2, the battery pack mounting part 4 and the second connecting part 6 are combined to form a D-shaped handle. The D-shaped handle formed by this combination can not only protect the hand holding the machine, but also increase the strength and stability of the machine.

[0041] The bottom end of the auxiliary bracket 3 and the top end of the second connecting part 6 are detachably connected. This not only does not hinder the rotation of the auxiliary bracket 3, but also limits its movement, effectively preventing the auxiliary bracket 3 from rotating arbitrarily when it is not acting as an auxiliary handle. At the same time, the limiting function of the auxiliary bracket 3 also ensures that when it is not acting as an auxiliary handle, it is always combined with the first connecting part 5, the grip part 2, the battery pack mounting part 4, and the second connecting part 6 to form a D-shaped handle. The D-shaped handle formed by this combination not only protects the hand holding the machine, but also increases the strength and stability of the machine.

[0042] The detachable connection between the bottom end of the auxiliary bracket 3 and the top end of the second connecting part 6, combined with the rotatable connection between the top end of the auxiliary bracket 3 and the first connecting part 5, enables the power tool of this application to not only have the function of an auxiliary handle, but also the function of a D-shaped handle. The auxiliary handle function is that the auxiliary bracket 3 acts as an auxiliary handle; the D-shaped handle function is that the combined D-shaped handle can not only protect the hand holding the tool, but also increase the strength and stability of the machine.

[0043] like Figure 3 , 4 As shown, the detachable connection between the bottom end of the auxiliary bracket 3 and the top end of the second connecting part 6 in this application is as follows:

[0044] 1. A first magnet 9 is embedded at the bottom of the auxiliary support 3, and a second magnet 10 is embedded at the top of the second connecting part 6. The bottom of the first magnet 9 and the top of the second magnet 10 attract each other. To avoid structural interference between the first magnet 9 and the second magnet 10 during the rotation of the auxiliary support 3, and to avoid insufficient attraction between them, the bottom surface of the first magnet 9 is flush with the bottom surface of the auxiliary support 3, and the top surface of the second magnet 10 is flush with the top surface of the second connecting part 6. This ensures that when the bottom of the auxiliary support 3 is directly above the top of the second connecting part 6, not only are the bottom surfaces of the auxiliary support 3 and the second connecting part 6 in contact with each other, but the bottom surface of the first magnet 9 also contacts the top surface of the second magnet 10. This maximizes the attraction between the first magnet 9 and the second magnet 10 while preventing interference. The mutual attraction between the first magnet 9 and the second magnet 10 serves as a limiting function for the auxiliary support 3, preventing it from rotating arbitrarily.

[0045] When the power tool needs to be operated with an auxiliary handle, the user can hold the auxiliary bracket 3 with his / her hand and forcefully overcome the force between the first magnet 9 and the second magnet 10, so that the positions of the first magnet 9 and the second magnet 10 are misaligned, that is, the bottom of the auxiliary bracket 3 is misaligned with the top of the second connecting part 6. Then, by operating the auxiliary bracket 3 to rotate, the auxiliary bracket 3 can be used as an auxiliary handle, which facilitates the operation of the power tool.

[0046] In this application, one of the first magnet 9 and the second magnet 10 can also be replaced with a metal block. The mutual attraction between the metal block and the magnet can also achieve the limiting function of the auxiliary support 3.

[0047] 2. The bottom end of the auxiliary support 3 has a groove 11, and the top end of the second connecting part 6 is provided with an elastic element 12. The groove 11 is used to engage the elastic element 12, thereby realizing the limiting function of the auxiliary support 3. The elastic element 12 of this application will compress and deform under force, and can return to its original shape after the external force is removed. The elastic element 12 of this application can be made of materials such as rubber and plastic that are easy to deform under pressure and restore their shape after the force is released. In order to facilitate the rotation of the auxiliary support 3, the shape and size of the elastic element 12 can also be designed, such as a small hemispherical rubber elastic element. The hemispherical design makes it easier for the elastic element 12 to compress and deform when it is subjected to external force, so that the auxiliary support 3 does not need to be subjected to too much force to achieve the compression deformation of the elastic element 12. The small size of the elastic element also makes it possible for the elastic element 12 to be engaged in the groove 11 or disengaged from the groove 11 without applying too much force to the auxiliary support 3.

[0048] As the auxiliary bracket 3 rotates, its bottom surface gradually comes into contact with the top surface of the second connecting part 6. During this process, the elastic element 12 at the top of the second connecting part 6 is compressed and deformed by the pressure from the bottom surface of the auxiliary bracket 3. When the auxiliary bracket 3 rotates so that its bottom end is directly above the top of the second connecting part 6, the groove 11 at the bottom of the auxiliary bracket 3 is also directly above the elastic element 12. At this time, the elastic element 12 will return to its shape because the bottom surface of the auxiliary bracket 3 no longer presses it. The elastic element 12 will then fit into the groove 11, thus restricting the rotation of the auxiliary bracket 3 and achieving the limiting function of the auxiliary bracket 3, preventing the auxiliary bracket 3 from rotating arbitrarily.

[0049] When using power tools and an auxiliary handle is required, the user can grip the auxiliary bracket 3 and apply force to the bottom surface of the auxiliary bracket 3 to compress and deform the elastic element 12. Once the elastic element 12 disengages from the groove 11, the user can then rotate the auxiliary bracket 3 to use it as an auxiliary handle, facilitating power tool operation. Simultaneously, when the auxiliary bracket 3 rotates and its bottom surface no longer compresses the elastic element 12, the elastic element 12 will return to its original shape.

[0050] The bottom end of the auxiliary bracket 3 and the top end of the second connecting part 6 can also be detachably connected by screws or other structures.

[0051] like Figure 3 , 4As shown, the auxiliary bracket 3 of this application can rotate around a rotation center. When the top of the auxiliary bracket 3 is rotatably connected to the first connecting part 5 using a single-axis connector 7, the rotation center of the auxiliary bracket 3 is located on the central axis of the circular shaft. When the top of the auxiliary bracket 3 is rotatably connected to the first connecting part 5 using a universal ball joint connector, the rotation center of the auxiliary bracket 3 coincides with the geometric center of the ball in the universal ball joint connector. To make the rotation of the auxiliary bracket 3 more convenient, and to ensure better contact between the bottom surface of the auxiliary bracket 3 and the top surface of the second connecting part 6 when the bottom of the auxiliary bracket 3 is directly above the top of the second connecting part 6, both the bottom surface of the auxiliary bracket 3 and the top surface of the second connecting part 6 can preferably be designed as an arc shape. This arc shape is centered on the rotation center of the auxiliary bracket 3 and is preferably designed along the left-right direction. Because the bottom surface of the first magnet 9 is flush with the bottom surface of the auxiliary support 3, and the top surface of the second magnet 10 is also flush with the top surface of the second connecting part 6, the bottom surfaces of the auxiliary support 3, the top surface of the second connecting part 6, the bottom surface of the first magnet, and the top surface of the second magnet 10 are all concentric arc shapes. This not only facilitates the rotation of the auxiliary support 3, but also allows the bottom surface of the auxiliary support 3 to better fit with the top surface of the second connecting part 6 when the bottom of the auxiliary support 3 is directly above the top of the second connecting part 6. At the same time, the bottom surface of the first magnet 9 will also fit with the top surface of the second magnet 10. Since the arc shape of the bottom surface of the auxiliary support 3 and the top surface of the second connecting part 6 is designed along the left and right direction, when an auxiliary handle in the left and right direction is needed, simply rotate the auxiliary support 3 left and right to serve as an auxiliary handle. When an auxiliary handle in other directions is needed, simply rotate the auxiliary support 3 left and right first to offset the position of the bottom of the auxiliary support 3 from the top of the second connecting part 6, and then rotate the auxiliary support 3 in a direction other than left and right to serve as an auxiliary handle in other directions.

[0052] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Those skilled in the art should understand that this utility model includes, but is not limited to, the content described in the above specific embodiments. Any modifications that do not depart from the functional and structural principles of this utility model will be included within the scope of the claims.

Claims

1. A power tool, comprising a main unit and a grip, characterized in that, The power tool also includes an auxiliary bracket rotatably connected to the grip, the auxiliary bracket being rotatable relative to the grip; The top end of the grip is connected to the bottom end of the main unit, the bottom end of the grip forms a battery pack mounting part, the top end of the grip extends forward to form a first connecting part, the front end of the battery pack mounting part extends upward to form a second connecting part, and the auxiliary bracket is provided between the first connecting part and the second connecting part. The top of the auxiliary support is rotatably connected to the first connecting part; The bottom end of the auxiliary bracket is detachably connected to the second connecting part; The bottom of the auxiliary support is embedded with a first magnet, and the top of the second connecting part is embedded with a second magnet. The bottom of the first magnet and the top of the second magnet attract each other.

2. The power tool according to claim 1, characterized in that, The top of the auxiliary support is rotatably connected to the first connecting part through a single-axis connector. The single-axis connector includes a round shaft, which is arranged in the front-back direction. One end of the round shaft is connected to the first connecting part in a way that allows it to rotate left and right, and the other end is connected to the top of the auxiliary support.

3. The power tool according to claim 1, characterized in that, The top of the auxiliary bracket is rotatably connected to the first connecting part through a universal connector, which is a universal ball joint connector.

4. A power tool according to claim 1, characterized in that, When the bottom end of the auxiliary bracket is directly above the top end of the second connecting part, the bottom end surface of the auxiliary bracket and the top end surface of the second connecting part are in contact with each other.

5. A power tool according to claim 1, characterized in that, The bottom surface of the first magnet is flush with the bottom surface of the auxiliary bracket, and the top surface of the second magnet is flush with the top surface of the second connecting part.

6. A power tool according to claim 1, characterized in that, The auxiliary support has a groove at its bottom end, and the second connecting part has an elastic element at its top end. When the auxiliary support rotates so that its bottom end is directly above the top end of the second connecting part, the elastic element is engaged in the groove.

7. A power tool according to claim 6, characterized in that, During the rotation of the auxiliary support, the elastic element can be compressed and deformed when it is squeezed by the bottom end of the auxiliary support. When the bottom end of the auxiliary support no longer squeezes the elastic element, the elastic element returns to its original shape.

8. A power tool according to claim 1, characterized in that, When the bottom end of the auxiliary bracket is directly above the top end of the second connecting part, the auxiliary bracket, together with the first connecting part, the gripping part, the battery pack mounting part, and the second connecting part, forms a D-shaped handle.

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