Hand tool mounting structure

Abstract

To provide a hand tool fitting structure having good turning effect. [Solution] The hand tool fitting structure of the present invention comprises a main body 10 having a fitting portion provided thereon, the fitting portion including three first driving portions 12, three second driving portions 13, and six storage portions 14, the three first driving portions and the three second driving portions being spaced apart in a ring-shaped arrangement, each of the storage portions being provided between the first driving portions and the second driving portions, each of the first driving portions including a first surface 121, a second surface 122, and a first intersection line 123, the first driving portions being provided with a first groove 124 and a second groove 125, each of the second driving portions being provided with a third surface 131, and in a two-dimensional manner, the fitting portion is provided with a first center of a circle, a first circle, and a first hexagon, each of the first surfaces being in contact with the first circle, and each of the first surfaces being overlapped with each of the side surfaces of the first hexagon.

Description

[Technical field]

[0001] The present invention relates to a hand tool fitting structure, and more particularly to a hand tool fitting structure having three rotational modes between the fitting and the first screw member, and a main body having a better rotational effect. The first, second and third surfaces are flat, and the first, second and third surfaces are unlikely to cause the first screw member to bite during rotation. The second driving part is provided, and the second driving part has a well-known structure, and the rotation of the second driving part can be the same as the well-known rotation, and by further adding the rotation of the first driving part, the fitting can have a rotational effect that combines the advantages of both. [Background technology]

[0002] As has long been known to us, examples of well-known and commonly used hand tool fitting structures include Patent Document 1 (U.S. Patent Application Publication No. 2007 / 0125204(A1)) and Patent Document 2 (Taiwan Utility Model No. M270886, Application No.: 093219645, Utility Model Name: Screw Head Breakage Prevention Socket).

[0003] However, this conventional hand tool fitting structure has the following three drawbacks.

[0004] 1. As shown in FIG. 5 and FIG. 7 of the related art document, when the socket 20 and the screw head 40 are fitted together and rotated, the six locking inclined protrusions 24 are engaged with approximately the center of the six sides of the screw head 40 and rotated together with the screw head 40. The locking inclined protrusions 24 protrude significantly into the fitting hole 22, and there is a long gap between the retreat groove 23 of the fitting hole 22 and the corners of the screw head 40, so that wear damage to the corners of the screw head 40 is very unlikely to occur when the fitting hole 22 is rotated. Structurally, as the locking inclined protrusion 24 protrudes more, the probability of wear and tear on the corners of the screw head 40 becomes lower; however, if the locking inclined protrusion 24 protrudes more, in order for the socket 20 to maintain its rotation torque force, the socket 20 needs to have a certain wall thickness; when the locking inclined protrusion 24 protrudes, the outer diameter of the socket 20 increases, and the outer diameter of the socket 20 becomes wider accordingly.

[0005] 2. The locking inclined protrusion 24 has a sharp corner shape, the rotational torque force of the locking inclined protrusion 24 is relatively insufficient, and after the screw head 40 is rotated in the socket 20 for a predetermined time, the locking inclined protrusion 24 can be worn down to have a rounded corner shape.

[0006] 3. When the screw head 40 is rotated in the socket 20, the locking inclined protrusion 24 and the screw head 40 come into contact with each other, and the locking inclined protrusion 24 has a sharp corner, which may cause the locking inclined protrusion 24 to bite into the screw head 40. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] US Patent Application Publication No. 2007 / 0125204(A1) [Patent Document 2] Taiwan Utility Model No. M270886 Summary of the Invention [Problem to be solved by the invention]

[0008] In the conventional hand tool fitting structure, the protruding state of the locking inclined protrusion is more protruding, and the socket needs to have a certain wall thickness to maintain its rotation torque force, and the locking inclined protrusion is likely to cause the screw head to bite. In the hand tool fitting structure of the present invention, there are three types of rotation between the fitting and the first screw member, and the main body has a better rotation effect. The first surface, the second surface, and the third surface are flat, and the first surface, the second surface, and the third surface are unlikely to cause the first screw member to bite when rotating. The second driving part is provided, and the second driving part may have the same state as the conventional rotation state while maintaining the conventional structure, and by further adding the rotation state of the first driving part, the fitting can have a rotation effect that combines the advantages of both. [Means for solving the problem]

[0009] The hand tool fitting structure includes a main body provided with a fitting, the fitting includes three first driving parts, three second driving parts, and six storage parts, the three first driving parts and the three second driving parts are arranged in a ring shape with a gap between them, each of the storage parts is provided between the first driving part and the second driving part, each of the first driving parts includes a first surface, a second surface, and a first intersection line, the first driving part is provided with a first groove and a second groove, and each of the second driving parts is provided with a third surface, and when observed in a two-dimensional manner, the fitting is provided with a first center, a first circle, and a first hexagon, each of the first surfaces and the first circle are in contact with each other, and each of the first surfaces overlaps with each of the side surfaces of the first hexagon. Effect of the Invention

[0010] In contrast to the effects of the prior art, the main body has a main rotation point and a second rotation point when the first screw member is turned clockwise to tighten and when the first screw member is turned counterclockwise to loosen, and when the first screw member is worn to have rounded corners, the first intersection line is engaged with and restricted by three side surface points of the first screw member to be rotatable, and the first intersection line has an effect of concentrating an acting force, the fitting portion has a rotation effect for rotating the first screw member and a rotation effect for rotating the first screw member that has already worn to have rounded corners, and there are three types of rotation between the fitting portion and the first screw member, and the main body has a better rotation effect. The first surface, the second surface, and the third surface are flat, and the first surface, the second surface, and the third surface are unlikely to cause bite marks of the first screw member when rotated. The second drive unit is provided, and while the second drive unit maintains a well-known and conventional structure, the state of the first screw-type member is in a normal state, and the state of the second drive unit may be the same as the well-known and conventional rotation state, and by further adding the rotation state of the first drive unit, the fitting unit can have an effect that combines the advantages of both. [Brief description of the drawings]

[0011] [Figure 1] 1 is a perspective view of a hand tool fitting structure according to the present invention; [Diagram 2] 1 is a front view of a hand tool fitting structure according to the present invention; [Diagram 3] 2 is a front view of the hand tool fitting structure of the present invention; FIG. [Figure 4] 1 is a front view of the hand tool fitting structure of the present invention in a first operating state; FIG. [Diagram 5] FIG. 2 is a front view of the hand tool fitting structure of the present invention in a second operating state; [Figure 6] FIG. 4 is a front view of the hand tool fitting structure of the present invention in a third operating state; [Figure 7] FIG. 4 is a front view of the hand tool fitting structure of the present invention in a fourth operating state; [Figure 8] FIG. 2 is a perspective view of a second embodiment of a hand tool fitting structure according to the present invention; [Figure 9] FIG. 4 is a perspective view of a third embodiment of a hand tool fitting structure according to the present invention; [Figure 10] FIG. 10 is a front view of a fourth embodiment of a hand tool fitting structure according to the present invention; [Figure 11] FIG. 10 is a front view of a fifth embodiment of a hand tool fitting structure according to the present invention; [Figure 12] FIG. 13 is a front view of a sixth embodiment of a hand tool fitting structure according to the present invention; [Figure 13] FIG. 13 is a front view of the seventh embodiment of the hand tool fitting structure of the present invention; [Figure 14] FIG. 13 is a front view of the eighth embodiment of the hand tool fitting structure of the present invention; [Figure 15] FIG. 13 is a front view of the ninth embodiment of the hand tool fitting structure of the present invention. [Figure 16] FIG. 19 is a front view of the tenth embodiment of the hand tool fitting structure of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First Example

[0012] First, referring to Figures 1 to 3, Figure 1 is a perspective view of the hand tool mounting structure of the present invention, Figure 2 is a front view of the hand tool mounting structure of the present invention, and Figure 3 is a front schematic view of the hand tool mounting structure of the present invention, and the hand tool mounting structure of the present invention has a main body 10.

[0013] The main body 10 is provided with a fitting portion 11, which includes three first driving portions 12, three second driving portions 13, and six storage portions 14, the three first driving portions 12 and the three second driving portions 13 being spaced apart in a ring-shaped arrangement, each of the storage portions 14 being provided between the first driving portions 12 and the second driving portions 13, and the main body 10 having a wrench structure, or the main body 10 having a fitting portion structure for each hand tool.

[0014] Each of the first driving units 12 includes a first surface 121 and a second surface 122, the first surface 121 being planar and the second surface 122 being planar, a first intersection line 123 being provided at the mutual intersection point between the first surface 121 and the second surface 122, and the first surface 121 and the second surface 122 intersect with each other in a straight line.

[0015] The first driving unit 12 is provided with a first groove 124, and the first groove 124 is provided in a range portion of the first surface 121. The first groove 124 includes a first side 1241 and two second sides 1242, and the first side 1241 and the two second sides 1242 are formed in a groove shape with a U-shaped opening. The first side 1241 and the second side 1242 are planar. The first side 1241 is provided at a bottom portion, and the two second sides 1242 are provided on both sides of the first side 1241. Two second intersection lines 1243 are provided at the intersection point between the first groove 124 and the first surface 121. The two second intersection lines 1243 are parallel to each other and to the first intersection line 123.

[0016] The first actuator 12 is provided with a second groove 125, and the second groove 125 is provided in a range of the second surface 122. The second groove 125 includes a third side 1251 and two fourth sides 1252, and the third side 1251 and the two fourth sides 1252 are formed in a groove shape of a U-shaped opening. The third side 1251 and the two fourth sides 1252 are flat. The third side 1251 is provided at a bottom portion, and the two fourth sides 1252 are formed in a groove shape of a U-shaped opening. 1, and the fourth side 1252 of one of them overlaps with the first intersection line 123, and a third intersection line 1253 is separately provided at the intersection point between the second groove 125 and the second surface 122, that is, the second groove 125 and the first driving part 12 intersect with each other on the first intersection line 123 and the third intersection line 1253, and the third intersection line 1253 is parallel to the first intersection line 123 and also parallel to the second intersection line 1243.

[0017] The second groove 125 and the first groove 124 have the same shape and structure, and are arranged at a distance between the second groove 125 and the first groove 124, the dimensional values ​​of the third side 1251 and the first side 1241 are the same, and the dimensional values ​​of the fourth side 1252 and the dimensional values ​​of the second side 1242 are the same.

[0018] Each of the second driving portions 13 is provided with a third surface 131, and the third surface 131 has a planar shape.

[0019] Each of the storage portions 14 has a concave arc surface shape, and each of the storage portions 14 is provided between the first driving portion 12 and the second driving portion 13. A first ellipse 141 is formed in the storage portion 14, and there is no contact between the storage portion 14 and the first surface 121, the second surface 122, or the third surface 131.

[0020] In a two-dimensional manner, a first circle center 15 is provided at the axial center of the fitting portion 11, and the first circle center 15 forms a first circle 151. Each of the first faces 121 and the first circle 151 are in contact with each other, and a first hexagon 152 is formed from the first circle 151. Each of the first faces 121 and each of the side faces of the first hexagon 152 are overlapped with each other. A first perpendicular line 153 is provided at the first circle center 15, and one of the first faces 121 and The first hexagon 152 and the first vertical line 153 are perpendicular to each other, the first surface 121 is arranged on both sides of the first vertical line 153, the first groove 124 is located on one side of the first vertical line 153, the second surface 122, the first intersection line 123, the third intersection line 1253 and the second groove 125 are located on the other side of the first vertical line 153, and the first hexagon 152 has six first corners 154, and the storage portion 14 is located outside the first corners 154.

[0021] The first hexagon 152 has a first distance 155 between two opposing side faces, a first angle 156 between the second face 122 and the first face 121, and a value of the first angle 156 is not greater than 15 degrees, or a value of the first angle 156 is between 5 degrees and 10 degrees, each side face of the first hexagon 152 has a second distance 157, a third distance 158 between the first corner end 154 and the first intersection line 123, and a fourth distance 159 between the first intersection line 123 and the other first corner end 154, and the fourth distance 159 is a value that is greater than or equal to the dimension value of the third distance 158. a ratio between the dimension values ​​of the third distance 158 and the dimension values ​​of the fourth distance 159 is equal to or close to 6:4; a second angle 1591 is formed between the first face 121 and the fourth side 1252, and a value of the second angle 1591 is smaller than 180 degrees; a fifth distance 1592 is formed between the third face 131 and the side face of the first hexagon 152, and a dimension value of the fifth distance 1592 is 0, which means that the third face 131 and the side face of the first hexagon 152 are overlapped with each other.

[0022] Continuing to refer to FIG. 4, FIG. 4 is a front view of the first operating state of fitting the first screw member 20 into the hand tool fitting structure of the present invention. As clearly shown in this drawing, a first screw member 20 is provided, and when the first screw member 20 is rotated clockwise on the main body 10, each of the first surfaces 121 and each of the third surfaces 131 abut against the side surfaces of the first screw member 20. When the first surface 121 and the side surfaces of the first screw member 20 abut against each other, the second surface 122 has a gap therebetween, that is, with respect to the side surfaces of the first screw member 20. The six corner ends of the first screw member 20 are respectively located within the ranges of the six storage portions 14. When the first screw member 20 is rotated in the fitting portion 11, the storage portions 14 can prevent wear and damage to the corner ends of the first screw member 20.

[0023] Referring to FIG. 5, FIG. 5 is a front view of the second operating state of fitting the first screw member 20 to the present invention. As can be clearly seen in this drawing, when the first screw member 20 is rotated counterclockwise on the main body 10, the first screw member 20 has different tolerances, and the second surface 122, the first intersection line 123, or the third intersection line 1253 abuts against three side surfaces of the first screw member 20, and the third surface 131 abuts against the remaining three side surfaces of the first screw member 20. The six corner ends of the first screw member 20 are respectively located within the range of each of the storage portions 14, and the six storage portions 14 can avoid wear damage to the corner ends of the first screw member 20.

[0024] Continuing to refer to FIG. 6, FIG. 6 is a front view of the third operating state of fitting the first screw member 20 in the present invention. As clearly shown in this drawing, when the hexagonal first screw member 20 has worn down to have approximately rounded corners, the first screw member 20 is rotated counterclockwise on the main body 10, and the first intersection line 123 can abut against the side surface of the first screw member 20. The first screw member 20 is rotated in a manner of concentrating the point of application of force so that the first intersection line 123 can make line contact. The first screw member 20, whose side surface has been worn down to have rounded corners, can be relatively easily loosened by turning it along the first intersection line 123, thereby achieving the attachment and detachment of the first screw member 20, which has worn down to have rounded corners, from the fitting portion 11.

[0025] Continuing to refer to FIG. 7, FIG. 7 is a front view of the fourth operation state of fitting the second screw member 30 to the hand tool fitting structure of the present invention, in which the second screw member 30 is provided, and six corner ends of the second screw member 30 are respectively fitted into the respective fitting portions 14, and the second screw member 30 is a star-shaped screw member.

[0026] Referring to FIG. 8, FIG. 8 is a perspective view of the second embodiment of the hand tool fitting structure of the present invention, the body 10 is a ratchet structure, and the ratchet structure is mainly pivoted on a ratchet wrench.

[0027] Referring to Fig. 9, Fig. 9 is a perspective view of the third embodiment of the hand tool fitting structure of the present invention, in which the body 10 is a socket structure.

[0028] Continuing to refer to FIG. 10, FIG. 10 is a front view of the fourth embodiment of the hand tool fitting structure of the present invention, in which the body 10 has an open-end wrench structure, the number of the first actuators 12 and the second actuators 13 is two, the number of the storage portions 14 is five, and the two first actuators 12 and the two second actuators 13 are spaced apart on the four faces of the fitting portion 11, respectively. Fifth embodiment

[0029] 11, which is a front view of the fifth embodiment of the hand tool mounting structure of the present invention, in which the main body 10 has an open-end wrench structure, the first driving part 12 and the second driving part 13 are one in number, the storage parts 14 are two in number, and the first driving part 12, the second driving part 13 and the storage parts 14 are respectively provided on two opposite side surfaces of the mounting part 11.

[0030] 12, which is a front view of the sixth embodiment of the hand tool fitting structure of the present invention, in which the first groove 124 has a triangular groove shape, or the first groove 124 has an isosceles triangle shape.

[0031] Continuing to refer to FIG. 13, FIG. 13 is a front view of the seventh embodiment of the hand tool fitting structure of the present invention, in which the first groove 124 and the second groove 125 are semicircular grooves.

[0032] 14, which is a front view of the eighth embodiment of the hand tool fitting structure of the present invention, in which each of the second driving parts 13 is provided with two third grooves 132, with a suitable gap between the two third grooves 132, and the two third grooves 132 are symmetrical with respect to the first vertical line 153.

[0033] 15, which is a front view of the ninth embodiment of the hand tool fitting structure of the present invention, in which the second driving part 13 is provided with a plurality of the third grooves 132, the number of the third grooves 132 is three, the spaces between the third grooves 132 have different shapes, and the third grooves 132 may be inverted triangular or semicircular grooves, and the spaces between the third grooves 132 are continuous with each other.

[0034] Continuing to refer to FIG. 16, FIG. 16 is a front view of the tenth embodiment of the hand tool fitting structure of the present invention, and as clearly shown in the embodiment, each of the third surfaces 131 can be positioned outside the edge surfaces of the first six sides 152, that is, the dimensional value of the fifth distance 1592 is greater than 0, and has a relatively large tolerance when rotating, and for the same reason, the third surfaces 131 can be positioned inside the edge surfaces of the first six sides 152.

[0035] The advantages of the hand tool fitting structure of the present invention are as follows:

[0036] 1. As shown in FIG. 4 for assistance, when the first screw member 20 is rotated clockwise on the main body 10, the three first surfaces 121 are the main points of action of the rotational force, and the first screw member 20 is rotated so that the first surfaces 121 have the maximum area, and the three third surfaces 131 are the main points of action of the second rotational force, and the first screw member 20 is rotated so that the third surfaces 131 also have a large area. When the main body 10 is rotated, it has a main rotation point and a second rotation point, and when the first screw member 20 is rotated on the main body 10, wear and damage to the six side surfaces of the first screw member 20 does not occur easily.

[0037] 2. As shown in FIG. 5 for assistance, when the first screw-type member 20 is rotated counterclockwise on the main body 10, the second surface 122, the first intersection line 123, or the third intersection line 1253 abuts against three side surfaces of the first screw-type member 20, which serve as the main points of action of the rotational force, and the third surface 131 abuts against the remaining three side surfaces of the first screw-type member 20, which serves as the point of action of a second rotational force. When the main body 10 is rotated, it has a main rotation point and a second rotation point, and when the first screw-type member 20 is rotated, wear and damage to the six side surfaces of the first screw-type member 20 does not occur easily.

[0038] 3. As shown in FIG. 6 for reference, when the six side surfaces of the first screw member 20 have been worn down to form rounded corners, the three first intersecting lines 123 are engaged with the very few minute side surfaces of the first screw member 20, and the first intersecting lines 123 have the effect of concentrating the point of application of force, thereby achieving the attachment and detachment of the first screw member 20 which has been worn down to form rounded corners. As shown in FIG. 3 again, the first intersecting lines 123 are disposed so as to be quite close to the first perpendicular line 153, so that when the wear damage of the first screw member 20 to form rounded corners becomes quite severe, it should be possible to turn and loosen the first screw member 20 along the three first intersecting lines 123.

[0039] 4. As described in the above points 1 to 3 as auxiliary, the main body 10 has a main rotation point and a second rotation point when the first screw member 20 is turned clockwise to tighten and when the first screw member 20 is turned counterclockwise to loosen, and when the first screw member 20 is worn to have rounded corners, the first intersection line 123 is engaged with and restricted by three side surface points of the first screw member 20 to be rotatable, and the first intersection line 123 has the effect of concentrating the acting force, the fitting portion 11 has both a rotation effect for rotating the first screw member 20 and a rotation effect for rotating the first screw member 20 that has already worn to have rounded corners, and there are three types of rotation between the fitting portion 11 and the first screw member 20, and the main body 10 has a better rotation effect.

[0040] 5. The first surface 121, the second surface 122, and the third surface 131 are flat, and the first surface 121, the second surface 122, and the third surface 131 are unlikely to cause bite marks of the first screw member 20 when rotated.

[0041] 6. The second drive part 13 is provided, and while the second drive part 13 maintains a well-known and conventional structure, the state of most of the screw-type members that it encounters is basically in the state shown in Figures 4 and 5. The state of the second drive part 13 may be the same as the well-known and conventional rotation state, and by further adding the rotation state of the first drive part 12, the fitting part 11 can have an effect that combines the advantages of both.

[0042] 7. The first driving part 12 and the second driving part 13 have different structures, the first surface 121 and the first hexagon 152 are overlapped with each other, and the third surface 131 and the first hexagon 152 have the fifth distance 1592. Generally speaking, if the first screw member 20 of standard 19 is mentioned, the upper limit is about 18.97 mm and the lower limit is about 18.50 mm. If the first driving part 12 and the second driving part 13 have different structures, that is, they can fit the first screw member 20 with relatively large different tolerances, and have a better rotating effect.

[0043] 8. As will be described subsequently to the above point, there is relatively little difference when rotating clockwise, but when rotating counterclockwise, due to the structure, if the third surface 131 is located outside the first hexagon 152, when the first screw-type member 20 that it encounters approaches its upper limit, there is a relatively high probability that the second surface 122 will rotate the first screw-type member 20 when rotating counterclockwise.

[0044] 9. As shown in FIG. 3 again for reference, there is a second angle 1591 between the first surface 121 and the fourth side 1252, and the angle value of the second angle 1591 is smaller than 180 degrees, i.e., the second angle 1591 is an acute angle, and the acting force is further concentrated on the third intersection line 1253, thereby rotating the first screw-type member 20, which has already worn to have a rounded corner.

[0045] 10. When rotating, the six corner ends of the first screw-type member 20 are respectively located within the range of the respective storage portions 14, and the six storage portions 14 have a concave arc-shaped surface, which means that wear and tear on the six corner ends of the first screw-type member 20 can be avoided.

[0046] 11. The storage portion 14 has a concave arc surface, and the first ellipse 141 is formed at the storage portion 14. The second screw-type member 30 can be fitted into the main body 10 and rotated. Structurally, the fitting portion 11 can rotate the first screw-type member 20 and the second screw-type member 30, and the main body 10 can be made extensible in terms of the type of rotation of the screw-type members. [Explanation of symbols]

[0047] 10: Main unit 11: Fitting 12: First drive unit 121: 1st page 122:Second side 123: First intersection line 124: 1st groove 1241: First side 1242: Side 2 1243:Second intersection line 125:Second concave groove 1251: Third side 1252: Side 4 1253: Third intersection line 13: Second drive unit 131:Side 3 132: Third concave groove 14: Storage department 141: First ellipse 15: First center 151: 1st Circle 152: 1st hexagon 153: 1st vertical line 154: 1st corner end 155: 1st distance 156: First angle 157:Second distance 158: 3rd distance 159: 4th distance 1591: Second angle 1592: 5th distance 20: First screw member 30: Second screw member

Claims

1. A hand tool fitting structure having a main body, The main body is provided with a fitting portion including three first driving parts, three second driving parts, and six storage parts, the three first driving parts and the three second driving parts being spaced apart from each other in an annular arrangement, each of the storage parts being provided between the first driving part and the second driving part, each of the first driving parts including a first surface having a planar shape and a second surface having a planar shape, a first intersection line being provided at a mutual intersection point between the first surface and the second surface, i.e., the first surface and the second surface intersect each other in a straight line, The first driving portion has a first groove provided in a range of the first surface, the first groove includes a first side provided at a bottom portion and two second sides provided on both sides of the first side, the first side and the two second sides are formed in a groove shape of a U-shaped opening, the first side and the second side are planar, two second intersection lines are provided at a mutual intersection point between the first groove and the first surface, the two second intersection lines are parallel to each other and to the first intersection line, the first driving part is provided with a second groove provided in a range of the second surface, the second groove includes a third side provided at a bottom part and two fourth sides provided on both sides of the third side, the third side and the two fourth sides are formed in a groove shape of a U-shaped opening, the third side and the two fourth sides are planar, one of the fourth sides overlaps with the first intersection line, a third intersection line is separately provided at a mutual intersection point between the second groove and the second surface, the second groove and the first driving part intersect with each other on the first intersection line and the third intersection line, the third intersection line is parallel to the first intersection line and also parallel to the second intersection line; the second groove and the first groove have the same shape and structure, the second groove and the first groove are spaced apart from each other, a numerical value of a dimension of the third side is the same as a numerical value of a dimension of the first side, and a numerical value of a dimension of the fourth side is the same as a numerical value of a dimension of the second side, Each of the second drive units is provided with a third surface having a planar shape, Each of the storage portions provided between the first drive portion and the second drive portion has a concave arc surface shape, In the two-dimensional manner, a first circle center constituting a first circle is provided at the axial center of the fitting portion, and each of the first faces and the first circle are in contact with each other to form a first hexagon from the first circle, and each of the first faces overlaps with each of the side faces of the first hexagon, and a first vertical line is provided at the first circle center, and one of the first faces and the first vertical line are perpendicular to each other, and the first faces are arranged separately on both sides of the first vertical line, and the first groove is located on one side of the first vertical line, and the second faces, the first intersection line, the third intersection line and the second groove are located on the other side of the first vertical line, and the first hexagon has six first corners, and the receiving portion is located outside the first corners, a first distance between two opposing side faces of the first hexagon, a first angle between the second face and the first face, a second distance between each side face of the first hexagon, a third distance between the first corner end and the first intersection line, a fourth distance between the first intersection line and the other first corner end, a numerical value obtained by adding a numerical value of the third distance to a numerical value of the fourth distance is equal to a numerical value of the second distance, a second angle is formed between the first face and the fourth side, and a fifth distance is formed between the third face and each side face of the first hexagon.

2. 2. The hand tool fitting structure according to claim 1, wherein the main body has a wrench structure, or the main body has a fitting structure for each hand tool, or the main body has a ratchet structure pivotally mounted mainly on a ratchet wrench, or the main body has a socket structure, or the main body has an open-end wrench structure, the number of the first driving part and the second driving part is two, the number of the storage parts is five, and the two first driving parts and the two second driving parts are respectively provided at intervals on four surfaces of the fitting part, or the main body has an open-end wrench structure, the number of the first driving part and the second driving part is one, the number of the storage parts is two, and the first driving part, the second driving part and the storage part are respectively provided on two opposite side surfaces of the fitting part.

3. The hand tool fitting structure according to claim 1, characterized in that a first ellipse is formed in the storage portion, and there is no contact between the storage portion and the first surface, the second surface, and the third surface.

4. 2. The hand tool fitting structure according to claim 1, wherein the first angle is not greater than 15 degrees, or is between 5 degrees and 10 degrees, the ratio between the third distance and the fourth distance is equal to or close to 6:4, the second angle is less than 180 degrees, and the fifth distance is 0, which means that the third surface and the side surface of the first hexagon are overlapped with each other.

5. A first screw member is provided, and when the first screw member is rotated clockwise on the main body, each of the first surfaces and each of the third surfaces abuts against a side surface of the first screw member, and when the first surface and the side surface of the first screw member abut against each other, the second surface has a gap with the side surface of the first screw member, and the six corner ends of the first screw member are respectively located within the range of the six storage portions, and when the first screw member is rotated in the fitting portion, the storage portions can avoid wear damage of the corner ends of the first screw member, and when the first screw member is rotated counterclockwise on the main body, the first screw member has different tolerances, and the second surface, the first intersection line, or the third intersection line abuts against three side surfaces of the first screw member, and the third surface abuts against the remaining three side surfaces of the first screw member.

2. The hand tool fitting structure according to claim 1, wherein the first screw member is abutted against a side surface of the hexagonal threaded member, six corner ends of the first screw member are respectively located within the range of each of the storage portions, the six storage portions can prevent wear damage to the corner ends of the first screw member, when the hexagonal first screw member is worn to have approximately round corners, the first screw member is rotated counterclockwise relative to the main body, and the first intersection line can abut against the side surface of the first screw member, and the first screw member is rotated by concentrating the point of application of force so that the first intersection line can make line contact, and the first screw member whose side surface has been worn to have round corners can be relatively easily turned or loosened along the first intersection line, thereby achieving the attachment and detachment of the first screw member which has been worn to have round corners from the fitting portion.

6. 2. The hand tool fitting structure according to claim 1, further comprising a second screw member which is a star-shaped screw member, and six corner ends of the second screw member are respectively accommodated in each of the storage portions.

7. 2. The hand tool fitting structure according to claim 1, wherein the first groove is a triangular groove, or the first groove is an isosceles triangle groove, or the first groove and the second groove are semicircular grooves.

8. 2. The hand tool fitting structure according to claim 1, characterized in that each of the second driving parts is provided with two third grooves, the two third grooves have an appropriate width therebetween, and the two third grooves are symmetrical to each other with respect to the first perpendicular line.

9. 2. The hand tool fitting structure according to claim 1, wherein the second driving part is provided with a plurality of the third grooves, the number of the third grooves is three, the spaces between the plurality of third grooves have different shapes, the third grooves may be in the shape of an inverted triangle or a semicircular groove, and the spaces between the plurality of third grooves are continuous with each other.

10. 2. The hand tool fitting structure according to claim 1, characterized in that each of the third surfaces can be positioned outside the edge surfaces of the first six sides, i.e., the dimensional value of the fifth distance is greater than 0 and has a relatively large tolerance when rotating, and for the same reason, the third surfaces can be positioned inside the edge surfaces of the first six sides.

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