Screwdriver labor-saving grip structure of hand tool

Abstract

A labor-saving grip structure of a hand tool is characterized by comprising a grip, a tool head and at least two grip protrusions. A grip; comprising a grip head, a grip tail and a holding part, the grip head and the grip tail are connected to the two ends of the holding part respectively, and the grip head and the grip tail are generally in an arc-shaped column shape; a tool head; the handle is strip-shaped, the structure of one end of the handle is used as a tool for loosening and tightening screws of various sizes and models, and the other end of the handle is positioned in the handle head of the handle; each holding lug boss; the two holding protruding parts are respectively in a strip shape, are in a protruding shape at the holding rear end with the small diameter and then extend towards the direction of the holding head, and due to the fact that the holding protruding parts are located at the holding rear end with the small diameter and can be in a protruding shape, a wide distance is generated between the two holding protruding parts.

Description

Technical Field

[0001] The utility model relates to a screwdriver tool, in particular to a labor-saving hand tool and its handle that can fit the sunken palm, effectively improve torque, and save force application. Background Art

[0002] Hand tools are commonly used in various household construction and installation equipment scenarios. Everyone has hand tools at home. Common hand tools such as screwdrivers, wrenches, and hex drivers are all essential hand tools at home. Taking a screwdriver in the prior art as an example, the handle of a common screwdriver is generally an arc-shaped cylinder or an arc-shaped cylinder with multiple sides or an equal cylinder. The side is mostly an arc-shaped curved surface for easy hand grasping. However, when the above-mentioned screwdriver hand tool handle is used to screw and fix a relatively tight screw, when applying a large torque, due to the arc-shaped S-shaped column design of the handle (as shown in Figure 1 ), the inner side of the hand (i.e., the palm part) and the surface of the handle are likely to slide on the contact surface, and the force application is limited, and it is not easy to unscrew the tight screw; although some can provide better friction through a variety of concave structures S1 (as shown in Figure 1 ), only the part S2 at the maximum diameter has better torque. Therefore, when it is commonly used for the initial screwing of screws, for example (as shown in Figure 2 ), the finger F is first used to hold the end S3 of the screwdriver handle and quickly screw it. However, since the diameter of the end S3 is thinner than the part S2 at the maximum diameter of the arc, the end S3 of the handle cannot provide the same torque as the part S2 at the maximum diameter, so the finger does not have a better force application position at the end S3 of the handle, so it is more laborious.

[0003] For other common screwdriver hand tool handles, when held in the palm, they cannot fit more closely into the sunken part of the palm, and thus do not produce better comfort. They also cannot provide better torque for the user in different holding states to achieve a more labor-saving purpose.

[0004] In order to overcome the above-mentioned difficulties and increase comfort and labor-saving effects, the inventor of the utility model conceived the structure of the present utility model to solve the problems existing above. Summary of the Utility Model

[0005] In view of the deficiencies of the prior art, the utility model provides a labor-saving handle structure for a hand tool, which is characterized in that it includes: a handle, a tool head, and at least two holding protrusions;

[0006] A handle; including a handle head, a handle tail, and a holding part. The handle head and the handle tail are respectively connected to both ends of the holding part, and the whole is generally in an arc-shaped column, so that the holding part generates a holding arc surface;

[0007] A tool head; it is strip-shaped, and one end of its locking structure is a tool for tightening and loosening screws of various sizes and models, and the other end is positioned in the grip head of the handle;

[0008] Each holding projection; each is strip-shaped, and is convex at the smaller-diameter holding rear end, and then extends towards the grip head. Because each holding projection is convex and has an obtuse-angled arc shape at the smaller-diameter holding rear end, a relatively wide distance is created between the two holding projections at this location, thereby increasing the area and also increasing the torque, enabling a better torque arm for the user's hand, thus providing labor saving. Also, due to the convexity of the holding projection at the smaller-diameter holding rear end, the convexity can be buried in the palm of the hand for a comfortable hand grip.

[0009] Furthermore, in the screwdriver labor-saving grip structure of the hand tool as described above, at least three holding projections are provided on the arc-shaped cylindrical handle. Each extends from the smaller-diameter handle tail towards the grip head, and the holding arc surface of the handle is cut into approximately equal three-piece holding arc surfaces. Each holding arc surface intersects with each other to form an arc edge, and the arc edges can be connected by arcs.

[0010] Furthermore, the axial direction of the handle can be circular, arc-shaped, triangular arc-shaped, multi-sided or polygonal, or the radial direction of the handle can be partially circular, arc-shaped, triangular arc-shaped, multi-sided or polygonal, or formed by interweaving various shapes, etc.

[0011] Furthermore, in the screwdriver labor-saving grip structure of the hand tool as described above, the strip-shaped tool head has one end positioned in the grip head, and the grip head is provided with a connection structure for connecting the tool head. The connection structure is a threaded connection or a snap connection, but is not limited thereto; the connection method is a fixed connection or a detachable connection.

[0012] Furthermore, in the screwdriver labor-saving grip structure of the hand tool as described above, the strip-shaped tool head has one end provided with a locking structure, and the locking structure is composed of a bit that can lock various screws, such as flat-head, cross-head, internal hexagon or external hexagon and other structure bits.

[0013] Furthermore, in the screwdriver labor-saving grip structure of the hand tool as described above, the overall convex height of the holding projection extends along the near-smaller-diameter handle tail towards the highest point of the holding arc surface (the largest-diameter part of the handle).

[0014] Furthermore, in the screwdriver labor-saving grip structure of the hand tool as described above, the holding arc surface is provided with anti-slip projections.

[0015] Furthermore, in the screwdriver labor-saving grip structure of the hand tool as described above, the grip head is provided with a connection structure for connecting the tool head.

[0016] Furthermore, for the screwdriver labor-saving grip structure of the hand tool as described above, the connecting structure is composed of a jack or a clamping groove or a locking mechanism.

[0017] Furthermore, for the screwdriver labor-saving grip structure of the hand tool as described above, the connecting structure can be designed as a strip-shaped connecting structure 4A to provide the tool head with the function of being quickly replaced on the grip.

[0018] Furthermore, for the screwdriver labor-saving grip structure of the hand tool as described above, the grip head at one end of the grip is designed as a movable grip head to facilitate the replacement and locking of different types of tool heads.

[0019] Furthermore, for the screwdriver labor-saving grip structure of the hand tool as described above, the locking structure is provided with a bit positioning structure to accommodate a variety of bits therein.

[0020] Furthermore, for the screwdriver labor-saving grip structure of the hand tool as described above, the holding arc surface is cut into three approximately equal-shaped pieces, and the angle between each holding arc surface is approximately 60 degrees or other angles.

[0021] Furthermore, for the screwdriver labor-saving grip structure of the hand tool as described above, the holding arc surface is cut into four approximately equal-shaped pieces, and the angle between each holding arc surface is approximately 90 degrees or other angles.

[0022] Furthermore, for the screwdriver labor-saving grip structure of the hand tool as described above, the holding arc surface of the grip is provided with anti-slip protrusions to increase the friction between the grip and the palm or fingers.

[0023] Furthermore, for the screwdriver labor-saving grip structure of the hand tool as described above, the surfaces of the grip near the grip head and the grip tail are both designed with anti-slip gripping positions, which can be anti-slip materials that increase the friction of the hand grip or various structures with a rough surface, and in this embodiment, it is designed as a mesh shape.

[0024] Furthermore, for the screwdriver labor-saving grip structure of the hand tool as described above, the holding arc surfaces provided on the holding arc surface of the grip can be designed in any shape to increase the ornamental value of the grip. For example, the shape of a killer whale is used as an implementation.

[0025] Furthermore, for the screwdriver labor-saving grip structure of the hand tool as described above, the surface materials of the grip and the holding protrusions or the holding arc surface can all be made of anti-slip materials such as rubber and plastic, or composed of multiple intersecting materials or multiple colors.

[0026] Furthermore, in the screwdriver labor-saving grip structure of the hand tool as described above, at least one anti-slip protrusion is provided on the gripping arc surface of the grip, increasing the gripping friction between the grip and the palm or fingers.

[0027] The advantages of the present utility model are as follows:

[0028] 1. By means of the arc-shaped columnar grip and the gripping protrusion part in the present utility model, the smaller-diameter gripping tail end increases in area and also increases the torque at this part, enabling the user's hand or fingers to generate a better torque lever arm when gripping this position, thus providing labor-saving and preventing the grip from slipping in the hand.

[0029] 2. Due to the protrusion of the gripping protrusion part on the grip of the present utility model, which is arranged from the smaller-diameter gripping tail end towards the grip head, when the protrusion is gripped by the hand, it can be embedded in the depression of the palm of the hand for fitting, resulting in the comfort of hand gripping.

[0030] 3. When the screwdriver labor-saving grip structure of the hand tool of the present utility model is provided with a multi-sided columnar shape with multiple gripping protrusion parts, in addition to providing a torque lever arm for the finger and palm parts, it can also be used at various angles and in multiple directions to generate a more comfortable grip in the user's tiger mouth or palm.

[0031] 4. The present utility model adopts a strip connection structure and a movable grip head, providing the tool head with the function of quickly changing tools on the grip and locking different types of tool heads.

[0032] 5. The present utility model adds a bit positioning structure to the locking structure of the tool head. This bit positioning structure can be used to quickly replace various types of bits with various shapes, and is suitable for screwing various screws with high selectivity.

[0033] 6. The gripping arc surfaces on the grip of the present utility model can be designed in any shape to increase the ornamental value of the grip, and in this embodiment, it is implemented in the shape of an orca.

[0034] 7. The surface materials of the grip, the gripping protrusion part or the gripping arc surface of the present utility model can all be anti-slip materials such as rubber and plastic, or composed of multiple materials intersecting or multiple colors, forming more diversity in the grip feeling and appearance. Description of the Drawings

[0035] Figure 1 And Figure 2 is an explanatory diagram of the usage state of a conventional screwdriver

[0036] Figure 3 is a perspective view of the first embodiment of the screwdriver labor-saving grip structure of the hand tool of the present utility model

[0037] Figure 4Isometric view of the grip of the first embodiment of the screwdriver force-saving grip structure of the hand tool of the present utility model.

[0038] Figure 5 Front view of the screwdriver force-saving grip structure of the hand tool of the present utility model in the first embodiment.

[0039] Figure 6 Bird's-eye view of the screwdriver force-saving grip structure of the hand tool of the present utility model in the first embodiment.

[0040] Figure 7 Bird's-eye view of the screwdriver force-saving grip structure of the hand tool of the present utility model in the second embodiment.

[0041] Figure 8 Schematic diagram of the first gripping method of the screwdriver force-saving grip structure of the hand tool of the present utility model.

[0042] Figure 9 Schematic diagram of the second gripping method of the screwdriver force-saving grip structure of the hand tool of the present utility model in the first embodiment.

[0043] Figure 10 Schematic diagram of the third gripping method of the screwdriver force-saving grip structure of the hand tool of the present utility model in the first embodiment.

[0044] Figure 11 Schematic diagram of the third embodiment of the screwdriver force-saving grip structure of the hand tool of the present utility model.

[0045] Figure 12 Schematic diagram of the components of the third embodiment of the screwdriver force-saving grip structure of the hand tool of the present utility model.

[0046] Figure 13 Front view of the fourth embodiment of the screwdriver force-saving grip structure of the hand tool of the present utility model.

[0047] Figure 14 Symbolic schematic diagram of using the bit of the screwdriver force-saving grip structure of the hand tool of the present utility model.

[0048] Figure 15 Front view of the fifth preferred embodiment of the screwdriver force-saving grip structure of the hand tool of the present utility model.

[0049] Figure 16 Bird's-eye view of the fifth preferred embodiment of the screwdriver force-saving grip structure of the hand tool of the present utility model. Detailed implementation manners

[0050] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0051] As Figure 3 and Figure 4 and Figure 5 As shown in [drawings not shown], the first embodiment of the screwdriver-saving grip structure of the hand tool of the present invention (hereinafter referred to as: the present invention) includes: a grip 1, a tool head 2, and at least two holding protrusions 3.

[0052] The grip 1 includes a grip head 11, a grip tail 12, and a holding portion 13. The grip head 11 and the grip tail 12 are respectively connected to both ends of the holding portion 13 and are generally in an olive-shaped arc column as a whole, so that the holding portion 13 generates a holding arc surface 14. The grip head 11 is provided with a connection structure 4 (not marked in the figure) for connecting the tool head 2. The connection structure 4 is a threaded connection, a snap connection, a socket connection, or the tool head 2 is fixed in the grip head 11 at one end of the grip 1 by an implanting method, but not limited thereto. The connection method is a fixed connection or a detachable connection.

[0053] The tool head 2 is in a strip shape. The locking structure 22 at one end is used as a tool for tightening and loosening screws of various sizes and models. The other end 21 is positioned in the grip head 11 of the grip 1 and is used as a screwdriver, an internal hexagonal wrench, and various types of bit heads for tightening and loosening screws of various sizes and models, but not limited thereto.

[0054] Each holding protrusion 3 is in a strip shape 31, and is in a convex shape 32 and an obtuse-angled arc shape 33 near the grip tail 12 with a smaller diameter, and then extends towards the grip head 11. Since the holding protrusions 3 are in a convex shape 32 at the grip tail 12 with a smaller diameter, a wider distance is generated between the two holding protrusions 3 at this position, thereby increasing the area and also increasing the torque, providing a better torque arm for the user's hand, thus providing labor saving. Also, due to the convexity 32 of the holding protrusion 3 at the grip tail 12 with a smaller diameter, the convexity 32 can be buried in the palm of the hand for fitting, resulting in the comfort of hand holding.

[0055] The surface materials of the grip 1 and the holding protrusions 3 can be anti-slip materials such as rubber and plastic, or composed of multiple intersecting materials or multiple colors.

[0056] As Figure 4 and Figure 5As shown, as described above (the first embodiment of the present utility model), there are at least three holding protrusions 3, each extending from the handle tail 12 with a smaller diameter of the handle 1 towards the handle head 11, and cutting the holding arc surface 14 of the handle 1 into three approximately equal pieces of holding arc surface 14. Each piece of holding arc surface 14 intersects with each other to form an arc edge 15, and the arc edges 15 can be connected by arcs; the handle tail 12 extends in a convex shape 32 to approximately the highest point of the holding arc surface 14. The holding protrusion 3 can change its shape as needed, and the height of the protrusion on the holding arc surface 14 or the arc edge 15, and can be provided at any position on the handle 1. The axial surface of the holding protrusion 3 can also be designed as an obtuse-angled arc 33 (as Figure 3 shown).

[0057] Combined Figure 6 with Figure 7 shown (the first and second embodiments of the present utility model), the holding part 13 of the handle 1 includes a plurality of holding arc surfaces 14. A holding protrusion 3 is provided at the intersection of every two arc edges 15, making the handle 1 radially multi-sided arc-shaped. In this embodiment, it is a three-sided arc shape ( Figure 6 shown). The included angle between every two holding arc surfaces 14 in this embodiment is about 60 degrees, making the holding part 3 approximately arc-shaped triangular prism; or a four-sided arc shape ( Figure 7 shown). The included angle between every two holding arc surfaces 14 in the second embodiment is about 90 degrees, making the holding part 3 approximately arc-shaped quadrangular prism, etc., which conforms to the ergonomic design and is beneficial to the human hand to hold.

[0058] As Figure 8 and Figure 9 shown, in the first embodiment of the present utility model (the first and second schematic diagrams of the use state), when the user holds the handle 1 of the present utility model, the holding arc surface 14 cooperates with the holding protrusion 3 and will contact the palm, providing a larger holding area A, which is convenient for the user to apply torque to the handle. The handle 1 is implemented in a polygon ( Figure 8 and Figure 9 both use a three-sided arc shape as the implementation). When the holding protrusion 3 together with the protrusion 32 applies a lateral force to the handle 1 (such as Figure 8 ), it can abut against the concave position A1 of the palm with the protrusion 32. In addition to being comfortable and conforming, the height of the holding protrusion 3 together with the protrusion 32 protruding is greater than the outer diameter of the gradually shrinking handle tail 12 of the columnar arc-shaped handle 1, generating a larger axial dimension to form a wider torque arm A3, and also making it more labor-saving to rotate the handle 1; (such as Figure 9 shown) is to apply a vertical force to the handle 1 by screwing the palm and pressing with the thumb, and its function is the same as that described in Figure 8 of the present utility model.

[0059] AsFigure 10 As shown, in the first embodiment of the present utility model (the third schematic diagram of the use state), as shown in the above various diagrams, the present utility model has the same above-mentioned structure and is implemented vertically or at various different angles ( Figure 10 implemented vertically). When using the present utility model to initially lock and tighten a screw, usually with the relatively flexible finger F, grasping and turning on the grip 1 near the tail 12 of the grip, a relatively fast screw-turning action can be obtained. By virtue of the height of the holding protrusion 3 together with the protrusion 32 protruding higher than the outer diameter of the gradually narrowing tail 12 of the cylindrical arc-shaped grip 1, a relatively large axial dimension is generated, forming a relatively wide torque arm A3, enabling the screw to be tightened or loosened more labor-savingly even only with the finger F.

[0060] As Figure 11 , Figure 12 , Figure 13 and Figure 14 shown (the schematic diagrams of the third and fourth embodiments of the present utility model), as shown in the above various diagrams, wherein the tool head 2 is strip-shaped, and one end 21 thereof can be replaced in the grip head 11 of the grip 1 through positioning or by locking, inserting, fitting, clamping or with a conventional technical mechanism. For example, (as Figure 11 shown) wherein through a strip-shaped connecting structure 4 implanted into the grip 1, the strip-shaped connecting structure 4 has a groove 43 at both ends 41, 42, one end 42 is provided with an opening 44, and a thread 45 is provided on the surface above the opening; in this embodiment, the grip head 11 of the grip 1 is particularly designed as a movable grip head 11A, and the movable grip head 11A is provided with an inclined perforation 11A1 and a nut 11A2 matching the thread 45. When the movable grip head 11A is locked on the thread 45 of the strip-shaped connecting structure 4A, the inclined perforation 11A1 will force the opening 44 at one end 42 to reduce the diameter S of one end 42, and then the one end 21 of the tool head 2 is positioned in the groove 43. The materials of the strip-shaped connecting structure 4A and the movable grip head 11A can be made of high-rigidity plastics or metals, etc. (as Figure 12 shown), and the locking structure 22 at the other end of the tool head 2 can adopt a single or cross or other various types of bits that can turn screws (as Figure 14 shown), enabling the present utility model to have a labor-saving and comfortable grip and be applied to various screw-turning uses;

[0061] As Figure 13 and Figure 14 shown, the locking structure 22 at one end of the tool head 2 adopts a conventional bit positioning structure 221 that can position various screws, nuts and other different types and sizes. The bit positioning structure 221 can be used to quickly replace various types of bits 23 with various shapes, but not limited to this (as Figure 10Various bit symbols (as shown in 24), as screwdrivers, hex wrenches, and various types of bits 23 for tightening and loosening screws of various sizes and models. One end locking structure 22 adopts a bit positioning structure 221, which provides a variety of bits installed therein. The bit positioning structure 221 can adopt a conventional structure that can accommodate various bits (such as hexagon socket 222, but not limited to hexagon socket 222) as an implementation.

[0062] Such as Figure 15 And Figure 16 As shown (schematic diagram of the fifth embodiment of the present utility model), in this embodiment, the holding arc surface 14 is provided with anti-slip protrusions 141 to increase the friction between the handle and the palm or fingers. The surfaces of the handle 1 near the handle head 11 and the handle tail 12 are both designed with anti-slip holding positions 111 and 121. In this embodiment, the anti-slip holding positions 111 and 121 are formed by mesh holes (but not limited to mesh hole structures) and can also be made of anti-slip materials to increase the friction of the palm or fingers; among them, the holding arc surface 14 or the anti-slip protrusions 141 can be designed in any shape to increase the ornamental value of the handle 1, and in this embodiment, the shape of a killer whale is used as an implementation. The surface materials of the handle 1, the holding protrusion 3, or the holding arc surface 14 can all be anti-slip materials such as rubber and plastic, or composed of multiple intersecting materials or multiple colors.

[0063] The advantages of the present utility model are as follows:

[0064] 1. By the arc-shaped columnar handle and the holding protrusion of the present utility model, the smaller-diameter holding tail end increases the area and also increases the torque of this part, enabling the user's hand or fingers to hold this position to generate a better torque arm, thus providing labor saving and preventing the handle from slipping in the hand.

[0065] 2. Due to the protrusion of the holding protrusion on the handle of the present utility model, which is arranged from the smaller-diameter holding tail end towards the handle head, when the protrusion is held by the hand, it can fit into the depression of the palm, resulting in the comfort of hand holding.

[0066] 3. When the screwdriver labor-saving handle structure of the hand tool of the present utility model is provided with a multi-sided columnar shape with multiple holding protrusions, in addition to providing a torque arm for the fingers and palm parts, it can also be used at various angles and in multiple directions to fit the user's tiger mouth or palm to produce a more comfortable grip.

[0067] 4. The present utility model adopts a strip connection structure and a movable handle head, providing the tool head with the function of quickly changing on the handle and locking different types of tool heads.

[0068] 5. The present utility model adds a bit positioning structure to the locking structure of the tool head. This bit positioning structure can be used to quickly replace various shapes of multiple types of bits, and is suitable for screwing various screws with high selectivity.

[0069] 6. The gripping arc surfaces on the grips of the present utility model can be designed in any shape to enhance the ornamental value of the grips. In this embodiment, the shape of a killer whale is used as an implementation.

[0070] 7. The surface materials of the grips, the gripping protrusions or the gripping arc surfaces of the present utility model can all be anti-slip materials such as rubber and plastic, or be composed of multiple intersecting materials or multiple colors, forming more diversity in the grip feeling and appearance.

[0071] The above are only the preferred embodiments of the present utility model, and do not impose any form of limitation on the present utility model. Although the present utility model has been disclosed above with the preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art, without departing from the technical solution of the present utility model, can make some changes or modifications to equivalent embodiments by using the technical content disclosed above. However, as long as it does not depart from the technical content of the present utility model, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims

1. A screwdriver labor-saving grip structure for a hand tool, characterized in that, Comprising: A handle, a tool head, and at least two holding protrusions; A handle, including a handle head, a handle tail, and a holding portion. The handle head and the handle tail are respectively connected to both ends of the holding portion and are integrally in an arc-shaped column, so that a holding arc surface is formed on the holding portion. A connecting structure is provided on the handle head; A tool head, which is strip-shaped. The locking structure at one end is a tool for tightening and loosening screws and nuts. The other end is located in the handle head of the handle; Each of the holding protrusions; is strip-shaped and protrudes near the handle tail with a smaller diameter of the handle, and then extends in the direction of the handle head. Since each of the holding protrusions is convex at the handle tail with a smaller diameter, a wider distance is generated between the two holding protrusions at this position.

2. The screwdriver force-saving grip structure of the hand tool according to claim 1, characterized in that, There are 3 such holding protrusions provided on the handle.

3. The screwdriver force-saving grip structure of the hand tool according to claim 1 or 2, characterized in that, The 3 holding protrusions cut the holding arc surface of the handle into 3 equal-sized sheet-shaped holding arc surfaces.

4. The screwdriver-saving grip structure of the hand tool as described in claim 1, wherein, There are 4 holding protrusions provided on the handle.

5. The screwdriver force-saving grip structure of the hand tool as claimed in claim 4, wherein The 4 holding protrusions cut the holding arc surface of the handle into 4 equal-sized sheet-shaped holding arc surfaces.

6. The screwdriver labor-saving grip structure of the hand tool as described in claim 1, wherein One end of the strip-shaped tool head can be removably replaced in the handle head of the handle.

7. The screwdriver force-saving grip structure of the hand tool according to claim 1, characterized in that, The other end of the strip-shaped tool head is formed by a bit positioning structure that can screw and unscrew screws and nuts.

8. The screwdriver force-saving grip structure of the hand tool according to claim 7, characterized in that, The bit positioning structure provides a place for installing a bit therein.

9. The screwdriver labor-saving grip structure of the hand tool according to claim 1, characterized in that, The connecting structure provided on the handle head is composed of a strip-shaped connecting structure.

10. The screwdriver force-saving grip structure of the hand tool according to claim 1, characterized in that, The handle head can be separated and disassembled into a movable handle head.

11. The screwdriver force-saving grip structure of the hand tool as described in claim 1, characterized in that, The surface material of the handle can be partially or entirely made of a non-slip material with high friction.

12. The screwdriver force-saving grip structure of the hand tool according to claim 1, characterized in that, The holding arc surface is provided with anti-slip protrusions.

13. The screwdriver-saving grip structure of the hand tool according to claim 1, characterized in that, Both the front end and the rear end of the holding portion are provided with anti-slip holding positions.

14. The screwdriver force-saving grip structure of the hand tool according to claim 1, characterized in that, The holding arc surface adopts an orca pattern.

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