A power tool

Abstract

The application discloses an electric tool, and belongs to the electric tool field, and solves the problem that a holding part cannot be adapted to different user's hand types, and the technical scheme for solving the problem mainly comprises a shell, the shell is formed with a holding part for holding, the holding part is slidably installed with a supporting part for supporting fingers, and the sliding direction of the supporting part is adapted to the extension direction of the fingers in the holding part. The application mainly adjusts the supporting part, so that the holding part can be adapted to various different sizes of hand types.

Description

Technical Field

[0001] This invention demonstrates an electric tool, belonging to the field of electric tool technology. Background Technology

[0002] A sander is a power tool used for sanding operations. It is commonly used to sand uneven or varying thickness surfaces such as walls and tabletops to achieve a desired smoothness. Sanders are also known as belt sanders, wheel sanders, or polishing machines. Handheld sanders are an important category of sanders, widely used in various industries due to their compact size and portability.

[0003] Sanders require users to hold them for extended periods during use. However, existing sanders have fixed grips, which limits their applicability to different hand shapes. This results in inadequate support for the fingers, especially the thumb. Prolonged use with an unsuitable hand shape can lead to finger fatigue and injury. Furthermore, the lack of support severely impacts the user's control precision and grip comfort, consequently affecting sanding efficiency and overall user experience. Summary of the Invention

[0004] The purpose of this invention is to solve the problem that the grip cannot be adapted to the hand shape of different users. To this end, an electric tool is provided that, by setting an adjustable support part, allows the grip to be adapted to various hand shapes of different sizes.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] An electric tool includes a housing having a grip portion for holding, the grip portion having a support portion slidably mounted thereon for supporting fingers, the sliding direction of the support portion being adapted to the extension direction of the fingers in the grip portion.

[0007] The beneficial effects of using the present invention are:

[0008] In this invention, the support portion slides into the housing, allowing the fingers to slide along the extension direction of the grip portion. Simultaneously, the housing is equipped with a positioning element that increases the resistance to the sliding of the support portion, enabling it to be positioned on the housing. During use, the user's hand grips the grip portion, and the user's fingers rest against the support portion. Users can adjust the position of the support portion according to their own usage habits, allowing it to slide to the optimal position to provide more comfortable and effective support for the fingers. This improves user grip comfort and reduces fatigue caused by prolonged gripping. This effectively improves the user experience and reduces the possibility of finger injuries. Furthermore, since different users have different hand and finger sizes, the position of their fingers on the grip will vary. The sliding support adapts to different hand shapes, effectively increasing the grip's usability. Secondly, since fingers play a crucial role in gripping, providing reliable support enhances grip strength, increasing user control and precision.

[0009] Preferably, the housing is provided with a positioning element, and the support portion has multiple positioning grooves arranged along the sliding direction of the support portion. The positioning element is elastically loaded and has a tendency to extend into the positioning groove. The positioning element cooperates with the positioning groove to increase the resistance to the sliding of the support portion. By adopting the aforementioned technical solution, the positioning element is elastically loaded and has a tendency to extend into the positioning groove, ensuring that the positioning element will not arbitrarily disengage from the positioning groove, avoiding the positioning element from sliding arbitrarily and affecting the user's grip, thereby improving the user's grip comfort and control over the power tool.

[0010] Preferably, the housing is provided with a slide rail, and the support portion includes a connecting portion that extends into and slides with the slide rail. A limiting block is connected to the connecting portion, and the limiting block engages with the slide rail to prevent the connecting portion from detaching from the slide rail. By employing the aforementioned technical solution, the limiting block can improve the stability of the sliding engagement between the connecting portion and the slide rail, prevent the support portion from detaching from the slide rail at will, and make the connection between the support portion and the housing more stable and reliable.

[0011] Preferably, the slide rail has a through hole, and the support part also includes a support end located on the outside of the housing. The connecting part slides within the through hole, and the limiting block is detachably connected to the end of the connecting part away from the support end. The limiting block abuts against the edge of the through hole so that the limiting block and the support end are respectively located at opposite ends of the through hole. The connecting part and the limiting block are detachably connected by fasteners; alternatively, the connecting part and the limiting block are detachably connected by a snap-fit ​​and a slot. Using the aforementioned technical solution, the detachable connection between the limiting block and the connecting part makes the installation and removal of the support part from the housing more convenient and quick, facilitating the replacement and maintenance of the support part and improving the assembly and replacement efficiency of the support part. Furthermore, the fastener connection between the connecting part and the limiting block improves the connection stability between the connecting part and the limiting block, further reducing the possibility of the support part detaching from the housing and ensuring the long-term stability of the support part.

[0012] Preferably, the housing has a receiving cavity for accommodating the positioning member. The receiving cavity forms an opening on the surface of the housing. The receiving cavity has an elastic member. One end of the elastic member acts on the positioning member, causing the positioning member to abut against the edge of the opening and the positioning member to be at least partially exposed on the surface of the housing.

[0013] Preferably, the end of the receiving cavity away from the housing surface is open, and a limiting block is detachably connected to the support. The limiting block slides synchronously with the support, closing the opening. An abutment block is provided inside the receiving cavity, and an elastic element is constrained between the positioning element and the abutment block. The abutment block abuts against the limiting block under the action of the elastic element, and the end of the abutment block that abuts against the limiting block has an outwardly convex curved surface structure. Using the aforementioned technical solution, the receiving cavity adopts an open structure, and the opening is closed by a limiting block detachably connected to the support. When the positioning element or elastic element needs to be replaced, only the limiting block needs to be removed to take out the positioning element and elastic element, making the replacement of the positioning element and elastic element more convenient and quick. In addition, the outwardly convex curved surface structure of the end of the abutment block that abuts against the limiting block can reduce the friction between the abutment block and the limiting block, thereby reducing the wear degree of the abutment block and the limiting block and helping to extend the service life of the abutment block and the limiting block.

[0014] Preferably, the abutting block is a sphere, and rolling friction is formed between the abutting block and the limiting block. By adopting the aforementioned technical solution, the rolling friction can further reduce the frictional force between the abutting block and the limiting block, reduce the degree of damage to the abutting block and the limiting block due to long-term friction, and effectively extend the service life of the abutting block and the limiting block.

[0015] Preferably, the end of the positioning member embedded in the positioning groove has a convex curved surface structure, and the structure of the positioning groove matches the end of the positioning member. By adopting the aforementioned technical solution, the end of the positioning member has a convex curved surface structure, and the structure of the positioning groove matches the positioning member. The convex curved surface structure can guide the positioning member out of the positioning groove, ensuring that the support part can slide smoothly under the action of external force.

[0016] Preferably, the surface of the support portion is provided with a groove for conforming to the fingers, and the groove wall is provided with a flexible anti-slip texture. By adopting the aforementioned technical solution, the groove on the support portion increases the contact area between the support portion and the fingers, allowing the support portion to provide stronger support for the fingers, facilitating the user's application of force, and thus effectively improving the user's grip strength. In addition, the flexible anti-slip texture increases the friction between the fingers and the support portion, reducing the possibility of finger slippage and helping to improve the stability of the grip. Furthermore, since power tools generate continuous vibration during use, impact and friction occur between the fingers and the support portion. The flexible material can absorb the impact force and reduce the hard contact between the fingers and the support portion, reducing the possibility of finger injury and effectively improving the safety of using power tools.

[0017] Preferably, the grip has two independent support parts, located on either side of the grip. Using the aforementioned technical solution, the two support parts can simultaneously provide optimal support for the fingers and index finger, thereby enhancing the user's grip strength, increasing the user's control over the power tool, and making the user's operation of the power tool more precise. Furthermore, the two support parts being located on either side of the grip allows the grip to be used with both the user's left and right hands, further expanding the grip's applicability.

[0018] Other features and advantages of the present invention will be disclosed in detail in the following detailed description and accompanying drawings. Attached Figure Description

[0019] The invention will be further described below with reference to the accompanying drawings:

[0020] Figure 1 This is a side view of the power tool of the present invention;

[0021] Figure 2 This is an exploded view of the power tool of the present invention;

[0022] Figure 3 A cross-sectional view of the power tool of the present invention. Figure 1 ;

[0023] Figure 4 for Figure 3 A magnified view of part A in the middle;

[0024] Figure 5 A cross-sectional view of the power tool of the present invention. Figure 2 ;

[0025] Figure 6 for Figure 5 A magnified view of part B in the middle section.

[0026] Reference numerals: 1. Housing; 11. Slide rail; 12. Receiving cavity; 2. Base plate assembly; 3. Dust collection pipe; 4. Grip part; 5. Support part; 51. Support end; 511. Groove; 52. Connecting part; 53. Limiting block; 531. Baffle plate; 61. Positioning element; 62. Elastic element; 63. Abutment block. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of the present invention and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the present invention.

[0028] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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 invention.

[0029] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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 invention according to the specific circumstances.

[0030] like Figures 1 to 6As shown in the figure, this embodiment illustrates a power tool, including a housing 1. The housing 1 has a gripping part 4 for holding, and a support part 5 for supporting fingers is slidably mounted on the gripping part 4. The sliding direction of the support part 5 is adapted to the extension direction of the fingers in the gripping part 4. The housing 1 is provided with a positioning member 61, and the support part 5 is provided with a plurality of positioning grooves arranged along the sliding direction of the support part 5. The positioning member 61 is elastically loaded and has a tendency to extend into the positioning groove. The positioning member 61 cooperates with the positioning groove to increase the resistance to sliding of the support part 5.

[0031] In this embodiment, the support part 5 slides with the housing 1. The support part 5 can slide along the extension direction of the fingers on the grip part 4. The housing 1 is provided with a positioning element 61, which increases the resistance to the sliding of the support part 5, allowing the support part 5 to be positioned on the housing 1. During use, different users hold the grip part 4 with their fingers against the support part 5 and can adjust the position of the support part 5 according to their own usage habits, allowing it to slide to the optimal position to provide more comfortable and effective support for the fingers. This improves user grip comfort, reduces fatigue caused by prolonged gripping, effectively enhances the user experience, and reduces the possibility of finger injury. Furthermore, due to different user hand positions... The size of the palm and fingers are different, meaning that the position of the fingers on the grip part 4 will be different when different users hold it. By sliding the support part 5, it can adapt to the hand shape of different users, thereby effectively increasing the usability of the grip part 4. Secondly, since the fingers play an important role in the gripping process, providing reliable support for the fingers can enhance the user's grip strength, thereby increasing the user's control over the power tool and making the user's operation of the power tool more precise. Furthermore, the positioning member 61 is elastically loaded and has a tendency to extend into the positioning groove, ensuring that the positioning member 61 will not arbitrarily disengage from the positioning groove, avoiding the positioning member 61 from sliding arbitrarily and affecting the user's grip, thereby improving the user's grip comfort and also improving the user's control over the power tool.

[0032] like Figure 2 and Figure 3As shown, the power tool described in this embodiment is a sander, including a housing 1, a base plate assembly 2, and a dust collection pipe 3. The base plate assembly 2 is fixed to the bottom of the housing 1. The outer side of the housing 1 is recessed to form a grip 4. A support 5 for supporting fingers is slidably installed on the grip 4. The housing 1 is provided with a slide rail 11 for the support 5 to slide. The support 5 includes a support end 51 and a connecting part 52. The support end 51 is located on the outer surface of the housing 1 and is used to support the fingers. The connecting part 52 is slidably engaged with the slide rail 11. The connecting part 52 is connected to a limiting block 53. The limiting block 53 is engaged with the slide rail 11 to limit the connection 52 from disengaging from the slide rail 11. The limiting block 53 can improve the stability of the sliding engagement between the connecting part 52 and the slide rail 11, prevent the support 5 from disengaging from the slide rail 11 at will, and make the connection between the support 5 and the housing 1 more stable and reliable.

[0033] like Figure 3 As shown, in this embodiment, the slide rail 11 has a through hole, and the connecting part 52 of the support part 5 slides in the through hole. The through hole passes through the housing 1 along the length direction of the connecting part 52. The limiting block 53 is detachably connected to the end of the connecting part 52 away from the support end 51. The limiting block 53 abuts against the edge of the through hole so that the limiting block 53 and the support end 51 are respectively at the two ends of the through hole. The end of the connecting part 52 away from the support end 51 is provided with a threaded hole. The limiting block 53 is provided with a through hole for bolts to pass through. The limiting block 53 is detachably connected to the connecting part 52 by bolts. The fastener can effectively improve the connection strength between the connecting part 52 and the limiting block 53, improve the connection stability between the connecting part 52 and the limiting block 53, reduce the possibility of the support part 5 detaching from the housing 1, and ensure the stability of the support part 5 in long-term use.

[0034] In this embodiment, the width of the limiting block 53 is greater than the height of the through hole. After the limiting block 53 is connected to the connecting part 52 by fasteners, the limiting block 53 will abut against the upper and lower edges of the through hole, thereby preventing the connecting part 52 from disengaging from the slide rail 11. In addition, in order to ensure that the limiting block 53 remains stable, the connecting part 52 in this embodiment is provided with two threaded holes. The limiting block 53 is connected to the connecting part 52 by two bolts, thereby preventing the limiting block 53 from deflecting.

[0035] It is understandable that in other embodiments, the connecting part 52 and the limiting block 53 can also be detachably connected by a buckle and a slot.

[0036] like Figure 5 and Figure 6As shown, in this embodiment, the housing 1 is provided with a receiving cavity 12 for accommodating the positioning member 61. The receiving cavity 12 forms an opening on the surface of the housing 1, and a baffle is provided around the opening. The positioning member 61 is provided with a stop block that abuts against the baffle. The receiving cavity 12 is provided with an elastic member 62. One end of the elastic member 62 acts on the positioning member 61, causing the positioning member 61 to have a tendency to protrude from the opening. This causes the stop block of the positioning member 61 to abut against the baffle. At this time, the end of the positioning member 61 is exposed on the surface of the housing 1 and embedded in the positioning groove. The movement direction of the positioning member 61 is perpendicular to the sliding direction of the support part 5, so that the positioning member 61 increases the sliding resistance of the support part 5, preventing the support part 5 from sliding randomly and affecting the user's grip. This helps to improve the user's grip comfort and also improves the user's control over the power tool.

[0037] It is understandable that in other embodiments, the positioning member 61 may also be a sphere, the diameter of the opening of the receiving cavity 12 is smaller than the diameter of the positioning member 61, the elastic member 62 acts on the positioning member 61, so that the positioning member 61 abuts against the opening of the receiving cavity 12, and the positioning member 61 is partially exposed on the surface of the housing 1 and embedded in the positioning groove of the support part 5.

[0038] In addition, in this embodiment, the end of the positioning member 61 that is embedded in the positioning groove has an outwardly convex curved surface structure. The structure of the positioning groove matches the end of the positioning member 61. When the positioning member 61 is embedded in the positioning groove, the user applies force to the support part 5. Under the action of external force, the support part 5 slides along the slide rail 11. During the sliding process, the outwardly convex curved surface structure can reduce the external force required for the positioning member 61 to detach from the positioning groove. The positioning groove will push the positioning member 61 to retract into the receiving cavity 12 and compress the elastic member 62, so that the positioning member 61 can smoothly detach from the positioning groove. When the positioning member 61 is aligned with the next positioning groove, the positioning member 61 will automatically embed into the positioning groove under the action of the elastic member 62. Under the action of elastic force, the positioning member 61 will impact the support part 5. The user can feel that the positioning member 61 and the positioning groove have entered the positioning groove through the impact force. When the user applies a greater external force, the support part 5 can quickly switch between multiple positions, realizing the rapid adjustment of the support part 5.

[0039] like Figure 6As shown, in this embodiment, the end of the receiving cavity 12 away from the opening is formed as an open end. The limiting block 53 has a baffle 531 that closes the open end. An abutment block 63 is provided inside the receiving cavity 12. The elastic member 62 is restricted between the positioning member 61 and the abutment block 63. The abutment block 63 abuts against the limiting block 53 under the action of the elastic member 62. The end of the abutment block 63 that abuts against the limiting block 53 has an outwardly convex curved surface structure. The receiving cavity 12 adopts an open structure, and the limiting block 53, which is detachably connected to the support part 5, provides a closed opening. The opening is closed, so when the positioning component 61 or the elastic component 62 needs to be replaced, only the limiting block 53 needs to be removed to take out the positioning component 61 and the elastic component 62, making the replacement of the positioning component 61 and the elastic component 62 more convenient and quick; in addition, the end of the abutting block 63 that abuts against the limiting block 53 has an outward convex curved surface structure, which can reduce the friction between the abutting block 63 and the limiting block 53, thereby reducing the wear of the abutting block 63 and the limiting block 53, and helping to extend the service life of the abutting block 63 and the limiting block 53.

[0040] It is understandable that the abutting block 63 in other embodiments may also be a sphere. Rolling friction is formed between the abutting block 63 and the limiting block 53. The use of rolling friction can further reduce the friction between the abutting block 63 and the limiting block 53, reduce the degree of damage to the abutting block 63 and the limiting block 53 due to long-term friction, and effectively extend the service life of the abutting block 63 and the limiting block 53.

[0041] like Figure 1 As shown, in this embodiment, the surface of the support part 5 is provided with a groove 511 for conforming to the fingers. The groove wall of the groove 511 is provided with flexible anti-slip texture. The groove 511 on the support part 5 can increase the contact area between the support part 5 and the fingers, so that the support part 5 can provide stronger support for the fingers, making it easier for the user to apply force, thereby effectively improving the user's grip strength on the grip part 4. In addition, the flexible anti-slip texture can increase the friction between the fingers and the support part 5, reduce the possibility of the fingers slipping, and help improve the grip stability of the fingers. Secondly, since the power tool will generate continuous vibration during use, impact and friction will occur between the fingers and the support part 5. The flexible material can absorb the impact force and reduce the hard contact between the fingers and the support part 5, reducing the possibility of finger injury and effectively improving the safety of using the power tool.

[0042] In this embodiment, the grip 4 is provided with two independent support parts 5, which are located on both sides of the grip 4. The two support parts 5 can provide the best support position for the fingers and index finger at the same time, thereby enhancing the user's grip strength, increasing the user's control over the power tool, and making the user's operation of the power tool more precise. In addition, the two support parts 5 are located on both sides of the grip 4, so that the grip 4 can be used with both the user's left and right hands, further improving the applicability of the grip 4.

[0043] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Those skilled in the art should understand that the present invention includes, but is not limited to, the contents described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of the present invention will be included within the scope of the claims.

Claims

1. A power tool, comprising a housing (1) having a gripping portion (4) for holding, characterized in that, The grip (4) is slidably fitted with a support (5) for supporting the fingers. The sliding direction of the support (5) is adapted to the extension direction of the fingers in the grip (4). The housing (1) is provided with a positioning member (61). The support (5) is provided with multiple positioning grooves arranged along the sliding direction of the support (5). The positioning member (61) is elastically loaded and has a tendency to extend into the positioning groove. The positioning member (61) cooperates with the positioning groove to increase the resistance of the sliding of the support (5). The housing (1) is provided with a slide rail (11). The support (5) includes a connecting part (52). The connecting part (52) extends into the slide rail (11) and slides with the slide rail (11). The connecting part (52) is connected to a limit block (53). 53) It is matched with the slide rail (11) to limit the connection part (52) from disengaging from the slide rail (11). The housing (1) is provided with a receiving cavity (12) for accommodating the positioning member (61). The receiving cavity (12) forms an opening on the surface of the housing (1). The receiving cavity (12) is provided with an elastic member (62). One end of the elastic member (62) acts on the positioning member (61) and makes the positioning member (61) abut against the edge of the opening and the positioning member (61) is at least partially exposed on the surface of the housing (1). The end of the receiving cavity (12) away from the surface of the housing (1) forms an opening. The support part (5) is detachably connected to a limiting block (53). The limiting block (53) slides synchronously with the support part (5) and the limiting block (53) closes the opening.

2. The power tool according to claim 1, characterized in that, The slide rail (11) has a through hole, and the support part (5) also includes a support end (51) located outside the housing (1). The connecting part (52) slides in the through hole. The limiting block (53) is detachably connected to the end of the connecting part (52) away from the support end (51). The limiting block (53) abuts against the edge of the through hole so that the limiting block (53) and the support end (51) are respectively located at both ends of the through hole. The connecting part (52) and the limiting block (53) are detachably connected by fasteners. Alternatively, the connecting part (52) and the limiting block (53) are detachably connected by buckles and slots.

3. The power tool according to claim 1, characterized in that, The cavity (12) is provided with an abutment block (63). The elastic element (62) is restricted between the positioning element (61) and the abutment block (63). The abutment block (63) abuts against the limiting block (53) under the action of the elastic element (62). The end of the abutment block (63) that abuts against the limiting block (53) is a convex curved surface structure.

4. A power tool according to claim 3, characterized in that, The abutting block (63) is a sphere, and rolling friction is formed between the abutting block (63) and the limiting block (53).

5. A power tool according to claim 1, characterized in that, The end of the positioning member (61) embedded in the positioning groove has an outwardly convex curved surface structure, and the structure of the positioning groove matches the end of the positioning member (61).

6. A power tool according to claim 1, characterized in that, The surface of the support (5) is provided with a groove (511) for fitting the fingers, and the groove wall of the groove (511) is provided with a flexible anti-slip texture.

7. A power tool according to claim 1, characterized in that, The grip (4) is provided with two independent support parts (5), which are located on both sides of the grip (4).

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