Ergonomic electric wrench

Abstract

The utility model discloses an ergonomics electric wrench belongs to electric wrench technical field, and its technical scheme main points include the casing, the inside of casing is provided with the drive motor, the output shaft fixedly connected with transmission shaft of drive motor, the other end of transmission shaft penetrates casing and is provided with the sleeve, the inside of casing is provided with the cleaning assembly, through setting up the cleaning assembly, when needing cleaning, miniature electric push rod extension pushes the installation ring and moves along the annular groove to the direction of approaching the sleeve, drives the brush ring contact nut surface, along with the rotation of transmission shaft, the brush ring can effectively clean the impurity, after cleaning, miniature electric push rod retraction will install the ring and brush ring and take back the original position, avoid the influence normal operation to the impurity of nut surface and surrounding can be cleaned before electric wrench operation, ensure that the sleeve and nut close engagement, reduce the skidding phenomenon.

Description

Technical Field

[0001] This utility model relates to the field of electric wrench technology, and in particular to an ergonomic electric wrench. Background Technology

[0002] In many fields such as industrial production, construction, and automobile repair, electric wrenches have become indispensable tools due to their efficient bolt and nut tightening and loosening capabilities, significantly improving work efficiency.

[0003] When using an electric wrench, a socket corresponding to the bolt or nut size needs to be installed in the wrench's collet position. The socket is then fitted onto the outer surface of the bolt or nut for tightening or loosening. However, bolts and nuts come in different sizes. When using an electric wrench with various bolt or nut sizes, different sized sockets need to be changed. Changing sockets is inconvenient, time-consuming, and labor-intensive, increasing the labor intensity of people changing sockets and reducing the efficiency of using the electric wrench. The existing patent (publication number: CN220882154U) discloses an electric wrench that facilitates socket replacement. This electric wrench has a reasonable structural design and is easy to use. It can automatically tighten or loosen screws without requiring much manual labor, thus improving efficiency. Furthermore, the wrench can be modified to accommodate screws of different sizes and models, making it highly practical.

[0004] To address the aforementioned problems, existing patents have provided solutions. However, in actual operation, when the socket is used to loosen or tighten the nut, many nuts accumulate a large amount of dust, metal shavings, and other impurities. In many work scenarios, the space occupied by the nut is very confined. Under these circumstances, manual cleaning of impurities becomes extremely inconvenient, difficult, and inefficient. More importantly, it is easy to fail to clean thoroughly. The remaining impurities can cause the socket and nut to not mesh tightly, making it easy for the screw to slip during tightening. This not only affects the accuracy of tightening or loosening, making it difficult to achieve the specified torque requirements, but also exacerbates the wear on the surfaces of the socket and nut, significantly shortening their service life.

[0005] Therefore, an ergonomic electric wrench is proposed. Utility Model Content

[0006] The purpose of this invention is to provide an ergonomic electric wrench that solves the problem that, in the actual operation of existing electric wrenches, when the socket is used to loosen or tighten nuts, many nuts have a large amount of dust, metal shavings and other impurities attached to their surface. In many work scenarios, the space where the nut is located is very confined. In such cases, manual cleaning of impurities becomes extremely inconvenient, difficult and inefficient. More importantly, it is easy to not clean thoroughly. The residual impurities will cause the socket and nut to not mesh tightly, and slippage will easily occur during tightening. This not only affects the accuracy of tightening or loosening, making it difficult to achieve the specified torque requirements, but also aggravates the wear of the socket and nut surfaces, significantly shortening their service life.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an ergonomic electric wrench, comprising a housing, a drive motor disposed inside the housing, a transmission shaft fixedly connected to the output shaft of the drive motor, the other end of the transmission shaft penetrating the housing and having a sleeve disposed thereon, a cleaning assembly disposed inside the housing, a handle fixedly connected to the bottom of the housing, a vibration damping assembly disposed on the surface of the handle, the cleaning assembly including a mounting ring, an annular groove formed at the end of the housing, the mounting ring disposed inside the annular groove, a brush ring disposed on the side of the mounting ring near the sleeve, a connecting circular plate fixedly sleeved on the surface of the transmission shaft, a miniature electric push rod fixedly mounted on the side of the connecting circular plate near the mounting ring, the telescopic end of the miniature electric push rod penetrating the housing and fixedly connected to the mounting ring.

[0008] Preferably, the vibration damping component includes a housing that is fitted onto the surface of the grip, and the shape of the housing is adapted to the shape of the grip.

[0009] Preferably, a rubber pad is fixedly connected to the inner side of the outer shell, and the inner side of the rubber pad is in contact with the surface of the handle.

[0010] Preferably, a silicone pad is adhered to the surface of the outer shell, and the surface of the silicone pad is coated with an anti-slip material.

[0011] Preferably, the mounting ring has a connecting groove on the side near the sleeve, and the brush ring is fixedly connected to a connecting block on the side near the connecting groove, the connecting block being used in conjunction with the connecting groove.

[0012] Preferably, the mounting ring has grooves at both the top and bottom, and a screw is threaded into the groove, with the screw extending into the groove. The top of the connecting block has a threaded hole for use with the screw.

[0013] Preferably, a transmission block is fixedly connected to the end of the transmission shaft, and an external threaded post is fixedly connected to the outer side of the transmission block.

[0014] Preferably, the inner wall of the sleeve is provided with internal threads, and the sleeve is threadedly connected to the surface of the externally threaded column.

[0015] Compared with the prior art, the beneficial effects of this utility model are: 1. This application, by setting up a cleaning component, when cleaning is required, extends a miniature electric push rod to push the mounting ring along the annular groove towards the sleeve, causing the brush ring to contact the nut surface. As the drive shaft rotates, the brush ring can effectively clean impurities. After cleaning, the miniature electric push rod retracts to bring the mounting ring and brush ring back to their original positions, avoiding affecting normal operation. This allows impurities on and around the nut surface to be cleaned before the electric wrench is used, ensuring that the sleeve and nut are tightly engaged and reducing slippage. 2. This application incorporates vibration damping components, with the outer shell and handle shape adapted to each other. The inner rubber pad effectively absorbs vibrations generated during operation, reducing the vibration transmitted to the operator's hand. The silicone pad on the outer shell not only further enhances the vibration damping effect, but its anti-slip material also improves the stability of the grip and prevents the electric wrench from slipping during operation. These designs reduce operator hand fatigue and improve the ergonomic performance of the electric wrench. Attached Figure Description

[0016] Figure 1 This is a structural diagram of the ergonomic electric wrench of this utility model; Figure 2 This is a front sectional view of the casing of this utility model; Figure 3 This is a schematic diagram of the cleaning component of this utility model; Figure 4 This utility model Figure 3 A diagram illustrating the breakdown; Figure 5 This is a schematic diagram showing the connection between the grip and the vibration damping component of this utility model; Figure 6 This is a schematic diagram showing the connection between the sleeve and the drive shaft of this utility model.

[0017] In the diagram, 1. Housing; 2. Drive motor; 3. Drive shaft; 4. Sleeve; 5. Cleaning assembly; 501. Mounting ring; 502. Brush ring; 503. Connecting circular plate; 504. Miniature electric push rod; 6. Handle; 7. Vibration damping assembly; 701. Outer shell; 702. Rubber pad; 703. Silicone pad; 8. Annular groove; 9. Connecting groove; 10. Connecting block; 11. Groove; 12. Screw; 13. Threaded hole; 14. Transmission block; 15. External threaded post. Detailed Implementation

[0018] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-6 The present invention provides the following technical solution: An ergonomic electric wrench includes a housing 1, a drive motor 2 inside the housing 1, a transmission shaft 3 fixedly connected to the output shaft of the drive motor 2, the other end of the transmission shaft 3 passing through the housing 1 and having a sleeve 4, a cleaning assembly 5 inside the housing 1, a handle 6 fixedly connected to the bottom of the housing 1, a vibration damping assembly 7 on the surface of the handle 6, the cleaning assembly 5 including a mounting ring 501, an annular groove 8 at the end of the housing 1, the mounting ring 501 being disposed inside the annular groove 8, a brush ring 502 being disposed on the side of the mounting ring 501 near the sleeve 4, a connecting circular plate 503 fixedly sleeved on the surface of the transmission shaft 3, a miniature electric push rod 504 fixedly mounted on the side of the connecting circular plate 503 near the mounting ring 501, the telescopic end of the miniature electric push rod 504 passing through the housing 1 and fixedly connected to the mounting ring 501.

[0020] In this embodiment: By setting up the cleaning component 5, the mounting ring 501 serves as the basic support structure of the cleaning component 5. It is located within the annular groove 8 at the end of the housing 1, providing a mounting carrier for the brush ring 502. Simultaneously, driven by the miniature electric push rod 504, it can move stably along the annular groove 8, causing the brush ring 502 to move closer to or away from the nut. The annular groove 8 provides a moving track for the mounting ring 501, limiting its movement trajectory and ensuring stability of both the mounting ring 501 and the brush ring 502 during movement, preventing displacement that could affect the cleaning effect. The brush ring 502 is the component that directly performs the cleaning action; it is located near the sleeve 4. When the mounting ring 501 moves it... When the brush ring 502 moves to contact the nut, the power generated by the rotation of the drive shaft 3 can be used to clean the dust, metal shavings and other impurities attached to the surface and surrounding area of ​​the nut, ensuring thorough cleaning. The connecting circular plate 503 can provide a mounting support point for the miniature electric push rod 504. While moving synchronously with the drive shaft 3, it can ensure the stable transmission of driving force to the mounting ring 501. The miniature electric push rod 504 serves as the power source for the cleaning component 5. Its telescopic end is fixedly connected to the mounting ring 501. Through its own telescopic movement, it can push or pull the mounting ring 501 along the annular groove 8, thereby controlling the brush ring 502 to move closer to the nut for cleaning or away from the nut to avoid affecting normal operation, thus realizing automated control of the cleaning action.

[0021] Specifically, such as Figure 5 As shown, the vibration damping component 7 includes a housing 701, which is fitted onto the surface of the grip 6, and the shape of the housing 701 is adapted to the shape of the grip 6.

[0022] Specifically, such as Figure 5 As shown, a rubber pad 702 is fixedly connected to the inner side of the outer shell 701, and the inner side of the rubber pad 702 is in contact with the surface of the handle 6.

[0023] Specifically, such as Figure 5 As shown, a silicone pad 703 is adhered to the surface of the outer casing 701, and the surface of the silicone pad 703 is coated with an anti-slip material.

[0024] In this embodiment: By setting up a vibration damping component 7, the outer shell 701 serves as the basic frame of the vibration damping component 7. It can be fitted onto the surface of the handle 6 and is adapted to the shape of the handle 6, forming a wrap-around protection for the handle 6. It provides installation support for other internal vibration damping structures, while enhancing the overall structural stability of the handle 6 and reducing the direct impact of external forces on the handle 6. The rubber pad 702 is fixedly connected to the inner side of the outer shell 701 and adheres to the surface of the handle 6. The rubber material has good elasticity and cushioning performance. When the electric wrench vibrates during operation, the rubber pad 702 can absorb some of the vibration energy through its own deformation, weakening the transmission of vibration to the hand and playing a preliminary vibration damping role. The silicone pad 703 is adhered to the surface of the outer shell 701. The silicone material is soft and has a certain degree of elasticity, which can further improve the comfort when holding it. At the same time, the anti-slip material coated on its surface can increase the friction between the hand and the handle 6, preventing slippage when the electric wrench vibrates or the hand sweats, ensuring the stability and safety of operation.

[0025] Specifically, such as Figure 4 As shown, the mounting ring 501 has a connecting groove 9 on the side near the sleeve 4, and the brush ring 502 has a connecting block 10 fixedly connected on the side near the connecting groove 9. The connecting block 10 is used in conjunction with the connecting groove 9.

[0026] Specifically, such as Figure 4 As shown, the mounting ring 501 has grooves 11 at both the top and bottom. The grooves 11 are threaded with screws 12, which extend into the connecting groove 9. The connecting block 10 has a threaded hole 13 at the top that mates with the screws 12.

[0027] In this embodiment: With the above settings, the connecting groove 9 is opened on the side of the mounting ring 501 near the sleeve 4, and the connecting block 10 is fixed at the corresponding position of the brush ring 502. The two work together to form a preliminary positioning connection structure. This design can quickly achieve precise docking between the brush ring 502 and the mounting ring 501, ensuring that the position of the brush ring 502 is accurate after installation, avoiding the cleaning effect due to installation offset, and providing a foundation for subsequent fixing steps. The groove 11 can provide a hidden installation space for the screw 12, avoiding the screw 12 from protruding and affecting the overall structure or operation. The screw 12 can be locked with the threaded hole 13 on the top of the connecting block 10, thereby realizing the detachable fixing of the brush ring 502 and the mounting ring 501. This not only ensures the stability of the brush ring 502 during operation, but also facilitates replacement after the brush ring 502 is worn, without the need to replace the entire mounting ring 501, reducing maintenance costs and extending the service life of the cleaning component 5.

[0028] Specifically, such as Figure 6 As shown, a transmission block 14 is fixedly connected to the end of the transmission shaft 3, and an external threaded post 15 is fixedly connected to the outside of the transmission block 14.

[0029] Specifically, such as Figure 6 As shown, the inner wall of the sleeve 4 is provided with internal threads, and the sleeve 4 is threadedly connected to the surface of the externally threaded column 15.

[0030] In this embodiment: Through the above configuration, the transmission block 14 and the external threaded post 15 form a transition structure for transmitting power from the transmission shaft 3 to the sleeve 4. The external threaded post 15 not only serves as a connecting carrier, but also achieves a detachable connection with the sleeve 4 through the threaded structure. At the same time, it can stably transmit the torque of the transmission shaft 3 to the sleeve 4, ensuring that the sleeve 4 obtains sufficient power during the tightening operation. The internal thread on the inner wall of the sleeve 4 can cooperate with the external threaded post 15, so that the sleeve 4 can be firmly installed at the end of the transmission shaft 3 through the threaded connection. This ensures that the sleeve 4 and the transmission shaft 3 rotate synchronously during operation, and facilitates the quick replacement of the corresponding size sleeve 4 according to different specifications of nuts. This solves the problem of inconvenient replacement of traditional sleeve 4 and improves the adaptability and work efficiency of the electric wrench.

[0031] Working principle: First, select a matching sleeve 4 according to the specifications of the nut to be operated. The sleeve 4 is firmly fixed by connecting its internal thread to the external threaded post 15 at the end of the drive shaft 3. Then, start the equipment to extend the miniature electric push rod 504, pushing the mounting ring 501 along the annular groove 8 at the end of the housing 1 towards the sleeve 4, causing the brush ring 502 to contact the surface of the nut to be operated. The drive motor 2 will then drive the drive shaft 3 to rotate. The drive shaft 3, through the connecting circular plate 503, drives the miniature electric push rod 504 and the mounting ring 501 to rotate synchronously, causing the brush ring 502 to contact the surface of the nut to be operated. 02 can clean impurities on and around the nut surface. After cleaning, control the miniature electric push rod 504 to retract, pulling the mounting ring 501 and brush ring 502 back to their original positions to avoid affecting subsequent operations. Then, the operator holds the vibration damping component 7 on the surface of the handle 6. The rubber pad 702 on the inside of the outer shell 701 and the silicone pad 703 on the surface can reduce vibration and provide anti-slip effect, improving operating comfort and stability. Then, align the sleeve 4 and put it on the nut surface, start the drive motor 2, and the drive motor 2 will drive the sleeve 4 to rotate through the transmission shaft 3, thus completing the tightening or loosening of the nut.

[0032] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An ergonomic electric wrench, comprising a housing (1), characterized in that: The housing (1) is equipped with a drive motor (2), the output shaft of which is fixedly connected to a transmission shaft (3). The other end of the transmission shaft (3) passes through the housing (1) and is provided with a sleeve (4). The housing (1) is equipped with a cleaning assembly (5). The bottom of the housing (1) is fixedly connected to a handle (6), and the surface of the handle (6) is provided with a vibration damping assembly (7). The cleaning assembly (5) includes a mounting ring (501). The end of the housing (1) is open. An annular groove (8) is provided, and the mounting ring (501) is set inside the annular groove (8). A brush ring (502) is provided on the side of the mounting ring (501) near the sleeve (4). A connecting circular plate (503) is fixedly sleeved on the surface of the drive shaft (3). A miniature electric push rod (504) is fixedly installed on the side of the connecting circular plate (503) near the mounting ring (501). The telescopic end of the miniature electric push rod (504) passes through the housing (1) and is fixedly connected to the mounting ring (501).

2. The ergonomic electric wrench according to claim 1, characterized in that: The vibration damping component (7) includes a housing (701) which is fitted onto the surface of the grip (6) and the shape of the housing (701) is adapted to the shape of the grip (6).

3. The ergonomic electric wrench according to claim 2, characterized in that: A rubber pad (702) is fixedly connected to the inner side of the outer shell (701), and the inner side of the rubber pad (702) is in contact with the surface of the handle (6).

4. The ergonomic electric wrench according to claim 2, characterized in that: A silicone pad (703) is adhered to the surface of the outer shell (701), and the surface of the silicone pad (703) is coated with an anti-slip material.

5. An ergonomic electric wrench according to claim 1, characterized in that: The mounting ring (501) has a connecting groove (9) on the side near the sleeve (4), and the brush ring (502) has a connecting block (10) fixedly connected on the side near the connecting groove (9). The connecting block (10) works in conjunction with the connecting groove (9).

6. An ergonomic electric wrench according to claim 5, characterized in that: The mounting ring (501) has grooves (11) at both the top and bottom. A screw (12) is threaded inside the groove (11) and extends into the connecting groove (9). The connecting block (10) has a threaded hole (13) at the top that works with the screw (12).

7. An ergonomic electric wrench according to claim 1, characterized in that: The transmission block (14) is fixedly connected to the end of the transmission shaft (3), and an external threaded column (15) is fixedly connected to the outside of the transmission block (14).

8. An ergonomic electric wrench according to claim 1, characterized in that: The inner wall of the sleeve (4) is provided with an internal thread, and the sleeve (4) is threadedly connected to the surface of the external thread column (15).

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