Electric tool

Abstract

The invention discloses an electric tool, belongs to the field of electric tools, solves the problem that a holding part cannot adapt to hand shapes of different users, and adopts the technical scheme that the electric tool mainly comprises a machine shell, the holding part for holding is formed on the machine shell, and a supporting part for supporting fingers is mounted on the holding part in a sliding manner; the sliding direction of the supporting part is matched with the extending direction of the fingers on the holding part. According to the invention, the adjustable supporting part is arranged, so that the holding part can adapt to various hand types with different sizes.

Description

Technical Field

[0001] The invention discloses an electric tool, belonging to the technical field of electric tools. Background Art

[0002] A sander is an electric tool used for grinding. It is commonly used to polish uneven or unevenly thick walls, tabletops, and other surfaces to achieve a desired smoothness. Sanders are also known as belt sanders, grinding wheels, or polishers. Handheld sanders are an important type of sander and are widely used across various industries due to their compact size and portability.

[0003] During use, the user needs to hold the sander for a long time, and the grip of the sander in the prior art is fixed. Therefore, the hand shape that the grip can adapt to is limited, and it cannot adapt to the differences in hand shapes of different users, resulting in the fingers not being effectively supported, especially the thumb. When the unsuitable hand shape uses the sander for a long time, the lack of effective support for the fingers can easily cause fatigue damage to the fingers. In addition, the lack of support for the fingers will seriously affect the user's control accuracy of the sander and the user's comfort in holding the sander, which will affect the sanding efficiency of the sander and also reduce the user's experience. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem that the grip portion cannot adapt to the hand shapes of different users. To this end, an electric tool is provided, which can adapt the grip portion to various hand sizes by providing an adjustable support portion.

[0005] To solve the above technical problems, the present invention adopts the following technical solutions:

[0006] An electric tool comprises a housing, wherein a gripping portion is formed on the housing for holding, and a support portion for supporting fingers is slidably mounted on the gripping portion, wherein the sliding direction of the support portion is adapted to the extending direction of the fingers on the gripping portion.

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

[0008] The support portion of the present invention is slidably matched with the housing, and the support portion can slide along the extension direction of the fingers on the grip portion. At the same time, the housing is provided with a positioning member, which can increase the resistance of the support portion to sliding, so that the support portion can be positioned on the housing. During use by different users, the user's palm is held on the grip portion, and the user's fingers are close to the support portion. The position of the support portion can be adjusted according to their own usage habits, so that the support portion can slide to the optimal position to provide more comfortable and effective support for the fingers, thereby improving the user's grip comfort and relieving the fatigue caused by long-term grip. , thereby effectively improving the user experience and reducing the possibility of injury to the user's fingers; in addition, since the sizes of palms and fingers of different users are different, that is, when different users hold the grip part, the positions of the fingers on the grip part are different, and the sliding of the support part can make the support part adapt to the hand shapes of different users, thereby effectively improving the use range of the grip part; 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 control of the power tool more precise.

[0009] Preferably, the housing is provided with a positioning member, and the support portion is provided with a plurality of positioning slots arranged along the sliding direction of the support portion. The positioning member is elastically loaded and has a tendency to extend into the positioning slots. The positioning member and the positioning slots cooperate to increase the resistance to sliding of the support portion. With the above technical solution, the positioning member is elastically loaded and has a tendency to extend into the positioning slots, ensuring that the positioning member will not arbitrarily escape from the positioning slots, preventing the positioning member from sliding and affecting the user's grip, thereby improving the user's grip comfort and enhancing the user's control over the power tool.

[0010] Preferably, the housing is provided with a slide rail, the support portion includes a connecting portion, the connecting portion extending into and slidingly engaging with the slide rail, the connecting portion being connected to a limit block, the limit block engaging with the slide rail to prevent the connecting portion from disengaging from the slide rail. Using the aforementioned technical solution, the limit block can improve the stability of the sliding engagement between the connecting portion and the slide rail, preventing the support portion from arbitrarily disengaging from the slide rail, thereby making the connection between the support portion and the housing more stable and reliable.

[0011] Preferably, the slide rail has a through hole, the support portion further includes a support end located outside the casing, the connecting portion slides in the through hole, the limit block is detachably connected to the end of the connecting portion away from the support end, the limit block abuts against the edge of the through hole so that the limit block and the support end are respectively located at both ends of the through hole; the connecting portion and the limit block are detachably connected via fasteners; or, the connecting portion and the limit block are detachably connected via a buckle and a slot. With the aforementioned technical solution, the limit block is detachably connected to the connecting portion, making the installation and removal of the support portion and the casing more convenient and quick, facilitating the replacement and maintenance of the support portion, and improving the assembly and replacement efficiency of the support portion; in addition, the connection between the connecting portion and the limit block by fasteners can improve the connection stability between the connecting portion and the limit block, further reducing the possibility of the support portion being separated from the casing, and ensuring the stability of the support portion during long-term use.

[0012] Preferably, the casing is provided with a accommodating cavity for accommodating the positioning member, the accommodating cavity forms an opening on the surface of the casing, and the accommodating cavity is provided with an elastic member, one end of the elastic member acts on the positioning member, and makes the positioning member abut against the edge of the opening and the positioning member is at least partially exposed on the surface of the casing.

[0013] Preferably, the accommodating cavity is open at one end away from the surface of the casing, the support portion is detachably connected to a limiting block, the limiting block slides synchronously with the support portion, and the limiting block forms a seal around the opening, an abutting block is provided in the accommodating cavity, the elastic member is confined between the positioning member and the abutting block, the abutting block abuts against the limiting block under the action of the elastic member, and the end portion where the abutting block and the limiting block abut against the limiting block is a convex curved surface structure. Using the above technical solution, the accommodating cavity adopts an open structure, and the opening is sealed by the limiting block detachably connected to the support portion, when the positioning member or the elastic member needs to be replaced, the positioning member and the elastic member can be removed by simply removing the limiting block, making replacement of the positioning member and the elastic member more convenient and quick; in addition, the end portion where the abutting block and the limiting block abut against the limiting block is a convex curved surface structure, which can reduce friction between the abutting block and the limiting block, thereby reducing the degree of wear of the abutting block and the limiting block, and helping to extend the service life of the abutting block and the limiting block.

[0014] Preferably, the abutment block is a sphere, and rolling friction is generated between the abutment block and the limit block. Adopting the above technical solution, the use of rolling friction can further reduce the friction between the abutment block and the limit block, reduce the degree of damage to the abutment block and the limit block due to long-term friction, and effectively extend the service life of the abutment block and the limit block.

[0015] Preferably, the end of the positioning member that is 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. With the above-mentioned technical solution, the end of the positioning member adopts an outwardly convex curved surface structure, and the structure of the positioning groove matches the positioning member. The outwardly convex curved surface structure can guide the positioning member out of the positioning groove, ensuring that the support portion can slide smoothly under the action of external force.

[0016] Preferably, the surface of the support portion is provided with a groove for fitting the finger, and the groove wall is provided with a flexible anti-skid pattern. By adopting the above-mentioned technical solution, the groove is provided on the support portion, which can increase the contact area between the support portion and the finger, so that the support portion can provide stronger support for the finger, which is convenient for the user to apply force, and thus can effectively improve the user's grip on the grip portion; in addition, the flexible anti-skid pattern can increase the friction between the finger and the support portion, reduce the possibility of the finger slipping, and help improve the finger's grip stability. Secondly, since the power tool will generate continuous vibration when in use, there will be impact and friction between the finger and the support portion, and the flexible material can absorb the impact force and can also slow down the hard contact between the finger and the support portion, reducing the possibility of finger damage, which can effectively improve the safety of the power tool.

[0017] Preferably, the grip portion is provided with two independent support portions, one on each side of the grip portion. Using the aforementioned technical solution, the two support portions can simultaneously provide optimal support positions for the fingers and index finger, thereby enhancing the user's grip, increasing the user's control over the power tool, and enabling more precise control of the power tool. Furthermore, the two support portions located on either side of the grip portion allow the grip portion to be used in both the left and right hands of the user, further expanding the grip portion's applicability.

[0018] Other features and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0021] Figure 2 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 partial enlarged view of part A;

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

[0025] Figure 6 for Figure 5 A partial enlarged view of part B.

[0026] Figure numerals: 1, housing; 11, slide rail; 12, accommodating chamber; 2, bottom plate assembly; 3, dust collecting tube; 4, gripping portion; 5, supporting portion; 51, supporting end; 511, groove; 52, connecting portion; 53, limiting block; 531, shielding plate; 61, positioning member; 62, elastic member; 63, abutting block. DETAILED DESCRIPTION

[0027] The following is an explanation and description of the technical solutions of the embodiments of the present invention in conjunction with the drawings of the embodiments of the present invention. However, the following embodiments are only preferred embodiments of the present invention and are not exhaustive. Based on the embodiments in the implementation manner, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0029] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

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

[0031] The support portion 5 described in this embodiment is slidably matched with the housing 1, and the support portion 5 can slide along the extension direction of the finger on the grip portion 4. At the same time, the housing 1 is provided with a positioning member 61, and the positioning member 61 can increase the resistance of the support portion 5 to sliding, so that the support portion 5 can be positioned on the housing 1. During use by different users, the user's palm is held on the grip portion 4, and the user's fingers are close to the support portion 5. The position of the support portion 5 can be adjusted according to their own usage habits, so that the support portion 5 can slide to the optimal position to provide more comfortable and effective support for the fingers, thereby improving the user's grip comfort, so as to reduce the fatigue caused by long-term grip, thereby effectively improving the user's usage experience, and also reducing the possibility of user finger injury; in addition, due to the different user hands The sizes of palms and fingers are different, that is, when different users hold the grip part 4, the positions of the fingers on the grip part 4 are different, and the sliding of the support part 5 can make the support part 5 adapt to the hand shapes of different users, thereby effectively improving the use range 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 gripping strength, thereby increasing the user's control over the power tool and making the user's control of the power tool more precise; furthermore, the positioning member 61 is elastically loaded and has a movement tendency to extend into the positioning groove, ensuring that the positioning member 61 will not arbitrarily separate 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 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 casing 1, a base plate assembly 2 and a dust collection tube 3. The base plate assembly 2 is fixed to the bottom of the casing 1, and the outer side surface of the casing 1 is concave to form a gripping portion 4. The gripping portion 4 is slidably installed with a support portion 5 for supporting fingers. The casing 1 is provided with a sliding rail 11 for the support portion 5. The support portion 5 includes a supporting end 51 and a connecting portion 52, wherein the supporting end 51 is on the outer surface of the casing 1 and is used to support the fingers. The connecting portion 52 slides in cooperation with the slide rail 11, and the connecting portion 52 is connected to a limiting block 53. The limiting block 53 is limited in cooperation with the slide rail 11 to limit the connection portion 52 from detaching from the slide rail 11. The limiting block 53 can improve the stability of the sliding cooperation between the connection portion 52 and the slide rail 11, prevent the support portion 5 from arbitrarily detaching from the slide rail 11, and make the connection between the support portion 5 and the casing 1 more stable and reliable.

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

[0034] The width of the limit block 53 described in this embodiment is greater than the height of the through hole. After the limit block 53 is connected to the connecting part 52 through a fastener, the limit block 53 will form abutment with the edges of the upper and lower sides of the through hole, thereby limiting the connecting part 52 from separating from the slide rail 11. In addition, in order to ensure that the limit block 53 remains stable, two threaded holes are provided on the connecting part 52 described in this embodiment, and the limit block 53 is connected to the connecting part 52 by two bolts, thereby preventing the limit block 53 from deflecting.

[0035] Of course, it is understandable that in other embodiments, the connecting portion 52 and the limiting block 53 may also be detachably connected by means of a buckle and a slot.

[0036] like Figure 5 and Figure 6As shown, the housing 1 in this embodiment is provided with a accommodating cavity 12 for accommodating the positioning member 61, and the accommodating cavity 12 forms an opening on the surface of the housing 1, and the periphery of the opening is provided with a baffle, and the positioning member 61 is provided with a block that abuts against the baffle, and the accommodating cavity 12 is provided with an elastic member 62, and one end of the elastic member 62 acts on the positioning member 61, so that the positioning member 61 has a movement tendency protruding from the opening, thereby causing the 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, and the movement direction of the positioning member 61 remains perpendicular to the sliding direction of the support part 5, so that the positioning member 61 will increase the resistance to the sliding of the support part 5, prevent the support part 5 from sliding arbitrarily and affecting the user's grip, help to improve the user's grip comfort, and also improve the user's control over the power tool.

[0037] Of course, it is understandable that in other embodiments, the positioning member 61 can also be a sphere, the diameter of the opening of the accommodating cavity 12 is smaller than the diameter of the positioning member 61, and the elastic member 62 acts on the positioning member 61 to make the positioning member 61 offset against the opening of the accommodating cavity 12, and make the positioning member 61 partially exposed on the surface of the casing 1 and embedded in the positioning groove of the support portion 5.

[0038] When the locating member 61 is aligned with the next positioning groove, the locating member 61 will automatically be embedded in the positioning groove under the action of the elastic member 62, and the locating member 61 will impact the support part 5 under the action of the elastic force. The user can sense that the locating member 61 and the positioning groove have entered the positioning groove through the impact force; and after the user applies a greater external force, the support part 5 can achieve rapid switching of multiple positions, thereby achieving rapid adjustment of the support part 5.

[0039] like Figure 6As shown, in this embodiment, the accommodating cavity 12 is open at one end away from the opening, and the limiting block 53 has a shielding plate 531 that closes the opening. An abutting block 63 is provided in the accommodating cavity 12, and the elastic member 62 is restricted between the positioning member 61 and the abutting block 63. The abutting block 63 abuts against the limiting block 53 under the action of the elastic member 62, and the end portion of the abutting block 63 abutting against the limiting block 53 is a convex curved surface structure. The accommodating cavity 12 adopts an open structure and is abutted by the limiting block 53 detachably connected to the support portion 5. The opening is closed, and when the positioning member 61 or the elastic member 62 needs to be replaced, the positioning member 61 and the elastic member 62 can be taken out by simply disassembling the limit block 53, making the replacement of the positioning member 61 and the elastic member 62 more convenient and quick; in addition, the end of the abutment block 63 and the limit block 53 is a convex curved surface structure, which can reduce the friction between the abutment block 63 and the limit block 53, thereby reducing the degree of wear between the abutment block 63 and the limit block 53, and helping to extend the service life of the abutment block 63 and the limit block 53.

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

[0041] like Figure 1 As shown, the surface of the support portion 5 in this embodiment is provided with a groove 511 for fitting the finger, and the groove wall of the groove 511 is provided with a flexible anti-skid pattern. The groove 511 is provided on the support portion 5, which can increase the contact area between the support portion 5 and the finger, so that the support portion 5 can provide stronger support for the finger, which is convenient for the user to apply force, and thus can effectively improve the user's grip on the grip portion 4; in addition, the flexible anti-skid pattern can increase the friction between the finger and the support portion 5, reduce the possibility of the finger slipping, and help to improve the finger's grip stability. Secondly, since the power tool will generate continuous vibration when in use, impact and friction will be generated between the finger and the support portion 5, and the flexible material can absorb the impact force, and can also slow down the hard contact between the finger and the support portion 5, reduce the possibility of damage to the finger, and can effectively improve the safety of the power tool.

[0042] The gripping portion 4 in this embodiment is provided with two independent support portions 5, and the two support portions 5 are respectively located on both sides of the gripping portion 4. The two support portions 5 can provide optimal support positions for the fingers and index fingers at the same time, thereby enhancing the user's gripping strength, increasing the user's control over the power tool, and making the user's control of the power tool more precise; the other two support portions 5 are respectively located on both sides of the gripping portion 4, so that the gripping portion 4 can be suitable for the user's left hand and right hand, further improving the applicability of the gripping portion 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 will understand that the present invention includes, but is not limited to, the contents described in the drawings and the above specific embodiments. Any modifications that do not deviate from the functional and structural principles of the present invention are intended to be included within the scope of the claims.

Claims

1. An electric tool comprising a housing (1), wherein the housing (1) is formed with a gripping portion (4) for gripping, wherein: The gripping portion (4) is slidably mounted with a support portion (5) for supporting a finger, and the sliding direction of the support portion (5) is adapted to the extending direction of the finger on the gripping portion (4).

2. The electric tool according to claim 1, wherein: The housing (1) is provided with a positioning member (61), and the support portion (5) is provided with a plurality of positioning grooves arranged along the sliding direction of the support portion (5). The positioning member (61) is elastically loaded and has a movement tendency to extend into the positioning groove. The positioning member (61) cooperates with the positioning groove to increase the sliding resistance of the support portion (5).

3. An electric tool according to claim 1 or 2, characterized in that: The housing (1) is provided with a slide rail (11), the support portion (5) includes a connecting portion (52), the connecting portion (52) extends into the slide rail (11) and slides with the slide rail (11), the connecting portion (52) is connected to a limiting block (53), and the limiting block (53) is limitedly matched with the slide rail (11) to prevent the connecting portion (52) from separating from the slide rail (11).

4. The electric tool according to claim 3, wherein: The slide rail (11) has a through hole, the support portion (5) further comprises a support end (51) located outside the housing (1), the connecting portion (52) slides in the through hole, the limit block (53) is detachably connected to an end of the connecting portion (52) away from the support end (51), the limit block (53) abuts against an edge of the through hole so that the limit block (53) and the support end (51) are respectively located at two ends of the through hole; the connecting portion (52) and the limit block (53) are detachably connected by a fastener; or, the connecting portion (52) and the limit block (53) are detachably connected by a buckle and a slot.

5. The electric tool according to claim 2, characterized in that: The housing (1) is provided with a receiving cavity (12) for receiving the positioning member (61), the receiving cavity (12) forming an opening on the surface of the housing (1), and 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 causes the positioning member (61) to abut against the edge of the opening and the positioning member (61) to be at least partially exposed on the surface of the housing (1).

6. The electric tool according to claim 5, characterized in that: The accommodating cavity (12) is formed with an opening at one end away from the surface of the housing (1); the support portion (5) is detachably connected to a limiting block (53); the limiting block (53) slides synchronously with the support portion (5); the limiting block (53) closes the opening; an abutting block (63) is provided in the accommodating cavity (12); the elastic member (62) is restricted between the positioning member (61) and the abutting block (63); the abutting block (63) abuts against the limiting block (53) under the action of the elastic member (62); and the end portion of the abutting block (63) abutting against the limiting block (53) is an outwardly convex curved surface structure.

7. The electric tool according to claim 6, characterized in that: The abutment block (63) is a sphere, and rolling friction is formed between the abutment block (63) and the limiting block (53).

8. The electric tool according to claim 2, characterized in that: The end of the positioning member (61) embedded in the positioning groove is an outwardly convex curved surface structure, and the structure of the positioning groove matches the end of the positioning member (61).

9. The electric tool according to claim 1, characterized in that: The surface of the support portion (5) is provided with a groove (511) for fitting a finger, and the groove wall of the groove (511) is provided with flexible anti-slip lines.

10. The electric tool according to claim 1, characterized in that: The gripping portion (4) is provided with two independent supporting portions (5), and the two supporting portions (5) are respectively located on both sides of the gripping portion (4).

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