Ratchet wrench structure

Abstract

The present invention provides a ratchet wrench structure that has two different standards, a first fitting portion and a third fitting portion, which allow a hexagonal rod structure to be fitted and have a contact effect. [Solution] The ratchet wrench structure comprises a main body 10, a ratchet 20, an engaging member 30, a fitting member 40, a first retaining ring 50, and a first extension rod. A pivot 11 is provided at one end of the main body. The pivot has a through hole. A contact portion 12 is provided on the main body. The contact portion is provided at the bottom opening of the hole in the pivot. A fitting groove 13 is provided at the rear end of the main body. The fitting groove has a hexagonal or dodecagonal groove shape. The ratchet is pivotally attached to the pivot. A ratchet portion is provided on the outer circumferential surface of the ratchet. The ratchet portion has a tooth shape arranged in an annular pattern. A first fitting portion is provided inside the ratchet. The first fitting portion has a dodecagonal or hexagonal groove shape.

Description

Technical Field

[0001] The present invention relates to a ratchet wrench structure, and in particular, a fitting member can be fitted or non-fitted to a first fitting portion, and a hexagonal rod structure can be fitted with two different standards, namely, the first fitting portion and the third fitting portion, and further relates to a ratchet wrench structure having an abutting effect.

Background Art

[0002] As a conventionally known ratchet wrench structure, for example, there is a "combination of a ratchet wrench and a drive member" in Patent Document 1 and Patent Document 2. The "combination of a ratchet wrench and a drive member" in Patent Document 1 and Patent Document 2 includes a main body, a ratchet ring, and a drive member.

[0003] When the drive member is in the first position, the first end abuts against the position regulating portion. On the other hand, when the drive member is in the second position, the first end and the second end are respectively located on opposite sides partitioned along the axis of the ratchet ring.

[0004] However, this conventional ratchet wrench structure has the following drawbacks (1) to (3). (1) Only a drive member with a single dimensional standard can be fitted into the drive hole, and there is room for improvement in the expandability of use. (2) The retaining ring is a substantially downward U-shaped retaining ring body, and the engaging structure between the downward U-shaped retaining ring and the drive member is insufficient, and the overall structure strength of the retaining ring body is insufficient, so deformation or displacement is likely to occur. (3) By aligning the positions of the avoidance portion and the position regulating portion, the drive member can be displaced axially within the drive hole, thereby adjusting the relative position between the drive member and the ratchet ring. However, since the position regulating portion is provided in one of the corner slots of the drive hole and the avoidance portion is provided in one of the vertices of the drive member, alignment was not easy in a narrow passage structure where the vertex of the avoidance portion must be aligned with the position of the corner slot of the position regulating portion. [Prior art documents] [Patent Documents]

[0005] [Patent Document 1] U.S. Patent No. 10286531B2 [Patent Document 2] Taiwan Patent No. I542447 [Overview of the project] [Problems that the invention aims to solve]

[0006] The main objective of this invention is to improve the expandability of the conventional ratchet wrench structure, in which only a drive member of a single dimensional standard can be fitted into the drive hole, by providing a ratchet wrench structure that has two different standards, a first fitment part and a third fitment part, which can accommodate a hexagonal rod structure and have a contact effect, and in order to improve the expandability of the conventional technology, in which the fitting member may or may not be fitted into the first fitment part, and the fitting member may or may not be fitted into the first fitment part. [Means for solving the problem]

[0007] To solve the above problems, according to the first embodiment of the present invention, A ratchet wrench structure comprising a body, ratchet, engaging member, fitting member, first retaining ring and first extension rod, A pivot portion is provided at one end of the main body, the pivot portion has a through hole, a contact portion is provided on the main body, the contact portion is provided at the bottom opening of the pivot portion, and a fitting groove is provided at the rear end of the main body, the fitting groove has a hexagonal or dodecagonal groove shape, The ratchet is pivotally attached to the pivot, and a ratchet portion is provided on the outer surface of the ratchet, the ratchet portion has a tooth shape arranged in an annular pattern, a first fitting portion is provided inside the ratchet, the first fitting portion has a dodecagonal groove shape or a hexagonal groove shape, the first fitting portion has a through hole, the ratchet is provided with a first housing tank, the first housing tank is provided near the opening of the first fitting portion, and the first housing tank is The first housing tank communicates with the first fitting portion, and the first housing tank has an annular concave shape. The ratchet is provided with two second housing tanks, the two second housing tanks are located on both sides of the first fitting portion, the two second housing tanks face each other, the second housing tanks communicate with the first housing tank and the first fitting portion, the extension direction of the second housing tanks is the same as the extension direction of the first fitting portion, and the second housing tanks have an elongated concave shape. The ratchet is provided with at least one engagement groove, the engagement groove communicating with a first fitting portion and a second housing groove, the engagement groove is located below the ratchet portion, the engagement groove and the first housing groove are positioned at the upper and lower ends of the first fitting portion, respectively, the engagement groove may or may not penetrate the ratchet laterally, when the engagement groove is penetrating, the engagement groove communicates with two second housing grooves, and when the engagement groove is not penetrating, the engagement groove communicates with two second housing grooves It communicates with only one of the storage tanks, the engagement tank has a circular groove shape, the first end of the ratchet has an inclined surface, the inclined surface is located above the first storage tank, the inclined surface has a concave conical surface, the ratchet is provided with a first rotating disc, the outer diameter of the first rotating disc is larger than the outer diameter of the ratchet part, the first rotating disc protrudes outward from the main body, the first storage tank, the inclined surface and the first rotating disc are located at the same end of the ratchet. When the first fitting portion has a dodecagonal groove shape, the first fitting portion is provided with a first hexagon and six vertices, two of which correspond to the positions of two second storage grooves, and the first fitting portion is provided with a second hexagon, and the first fitting portion of the dodecagonal groove is formed by the alternating arrangement of the second hexagon and the first hexagon, with a spacing of 30 degrees between the first and second hexagons. The engaging member has a circular cross-section, and is provided with two first housing sections, each housing on either side of the first housing chamber, and the first housing sections are curved arc-shaped columns. The engaging member is provided with a blocking section, which is housed within the first housing chamber and partially exposed at the first hexagonal section, which connects the two first housing sections, which is provided between the two first housing sections, which are symmetrical with respect to the blocking section, which are columns, and each first housing section has a second housing section at one end, which is housed within the second housing chamber, which are perpendicular to each other, which are symmetrical with respect to the blocking section, which are columns. At least one of the second housings is provided with a convex contact portion, or all of the second housings are provided with convex contact portions, the convex contact portion protrudes slightly within the range of the first fitting portion, the convex contact portion has elasticity that allows it to contract inward, the convex contact portion is located approximately midway between the second housings, the convex contact portion has a convex arc-shaped columnar body, the first end of each second housing is provided with an engaging end, the engaging end penetrates the engaging groove and contacts the contact portion, the ratchet is pivotally attached to the pivot while being restricted by the first rotating plate and engaging member, the engaging end is perpendicular to the second housing and has a cylindrical shape, The fitting member is fitted onto a ratchet, and the fitting member can be removed from the ratchet. A second fitting portion is provided on the outside of the fitting member, and the second fitting portion is fitted onto the first fitting portion. The second fitting portion conforms to the shape of the first fitting portion, and the second fitting portion is elastically held by a convex contact portion, so that the second fitting portion is less likely to fall off the first fitting portion. The end face of the second fitting portion is in contact with the stopping portion or has a small gap between it and the stopping portion. Within the aforementioned fitting member, a third fitting portion is provided, the third fitting portion exhibits a through hole, and the third fitting portion is provided with a contact edge, the contact edge is provided on one of the surfaces of the third fitting portion, the distance from the contact edge to the axis of the fitting member is smaller than the distance from the other surface of the third fitting portion to the axis of the fitting member, that is, the distance from the contact edge to the axis of the fitting member is relatively short, and the contact edge exhibits a planar convex mass shape. The fitting member is provided with a third housing chamber, which is located near the opening at the bottom of the fitting member and has a concave annular shape. A second rotating disc is provided at the bottom of the fitting member, the outer diameter of the second rotating disc is larger than the outer diameter of the second fitting portion, the second rotating disc protrudes outward from the main body and the fitting member, and the second rotating disc and the first rotating disc are arranged separately at the upper and lower ends of the main body. The first retaining ring is a slightly elastic C-shaped ring body, the first retaining ring is hooked onto the third storage tank, and a portion of the first retaining ring is exposed at the location of the third fitting portion. The first extension rod is provided with a first hexagonal portion, which can engage with a third fitting portion, and the first retaining ring is elastically held on the vertex of the first hexagonal portion, making it difficult for the first hexagonal portion to come off the third fitting portion. The first hexagonal portion is a hexagonal prism, and one end of the first hexagonal portion is provided with a first end, which has a hexagonal surface shape. The first extension rod is provided with a through portion, which is located on one of the faces of the first hexagonal portion, and the extension length of the through portion is the same as the longitudinal direction of the first hexagonal portion. The distance from the through portion to the axis of the first extension rod is smaller than the distance from the other face of the first hexagonal portion to the axis of the first extension rod, and the distance from the through portion to the axis of the first extension rod is relatively short. The through portion has a planar surface. The present invention provides a ratchet wrench structure characterized in that the first extension rod is provided with a second hexagonal portion, the second hexagonal portion can be fitted with the first fitting portion after the fitting member is removed, the dimensions of the second hexagonal portion are larger than those of the first hexagonal portion, the second hexagonal portion is provided at approximately the midpoint of the first extension rod, the diameter of the inscribed circle of the second hexagonal portion is larger than the diameter of the inscribed circle of the first hexagonal portion, and the second hexagonal portion is a hexagonal prism. [Effects of the Invention]

[0008] The ratchet wrench structure according to the present invention may or may not fit the fitting member into the first fitting portion, has two different standards, namely the first fitting portion and the third fitting portion, can fit a hexagonal rod structure, and has an abutting effect.

Brief Description of the Drawings

[0009] [Figure 1] It is an exploded perspective view showing the ratchet wrench structure according to the first embodiment of the present invention. [Figure 2] It is a perspective view showing the ratchet of the ratchet wrench structure according to the first embodiment of the present invention. [Figure 3] It is a top view showing the ratchet of the ratchet wrench structure according to the first embodiment of the present invention. [Figure 4] It is a perspective view showing the engaging member of the ratchet wrench structure according to the first embodiment of the present invention. [Figure 5] It is a perspective view showing the fitting member of the ratchet wrench structure according to the first embodiment of the present invention. [Figure 6] It is an assembled perspective view showing the ratchet wrench structure according to the first embodiment of the present invention. [Figure 7] It is a top view showing the ratchet wrench structure according to the first embodiment of the present invention. [Figure 8] It is a cross-sectional view taken along line A-A of FIG. 7. [Figure 9] It is a perspective view showing the first extension rod of the ratchet wrench structure according to the first embodiment of the present invention. [Figure 10] It is a perspective view showing the first operating state of the ratchet wrench structure according to the first embodiment of the present invention. [Figure 11] It is a perspective view showing the second operating state of the ratchet wrench structure according to the first embodiment of the present invention. [Figure 12] It is a perspective view showing the third operating state of the ratchet wrench structure according to the first embodiment of the present invention. [Figure 13] It is an exploded perspective view showing the ratchet wrench structure according to the second embodiment of the present invention. [Figure 14] It is an exploded perspective view showing a ratchet wrench structure according to a third embodiment of the present invention. [Figure 15] It is an exploded perspective view showing a ratchet wrench structure according to a fourth embodiment of the present invention.

Embodiments for Carrying out the Invention

[0010] (First Embodiment) First, refer to FIGS. 1 to 9. FIG. 1 is an exploded perspective view showing a ratchet wrench structure according to a first embodiment of the present invention. FIG. 2 is a perspective view showing a ratchet of the ratchet wrench structure according to the first embodiment of the present invention. FIG. 3 is a top view showing a ratchet of the ratchet wrench structure according to the first embodiment of the present invention. FIG. 4 is a perspective view showing an engaging member of the ratchet wrench structure according to the first embodiment of the present invention. FIG. 5 is a perspective view showing a fitting member of the ratchet wrench structure according to the first embodiment of the present invention. FIG. 6 is an assembled perspective view showing the ratchet wrench structure according to the first embodiment of the present invention. FIG. 7 is a top view showing the ratchet wrench structure according to the first embodiment of the present invention. FIG. 8 is a cross-sectional view taken along line A - A' of FIG. 7. FIG. 9 is a perspective view showing a first extension rod of the ratchet wrench structure according to the first embodiment of the present invention.

[0011] As shown in FIGS. 1 to 9, the ratchet wrench structure according to the first embodiment of the present invention includes a main body 10, a ratchet 20, an engaging member 30, a fitting member 40, a first retaining ring 50, and a first extension rod 60.

[0012] The main body 10 is a ratchet wrench structure. A pivot portion 11 is provided at one end of the main body 10. The pivot portion 11 has a through hole. Basic components such as braking teeth required for the ratchet wrench are installed in the pivot portion 11. An abutting portion 12 is provided on the main body 10. The abutting portion 12 is provided at the bottom opening of the hole of the pivot portion 11. A fitting groove 13 is provided at the rear end of the main body 10. The fitting groove 13 has a hexagonal groove shape or a dodecagonal groove shape.

[0013] The ratchet 20 is pivotally attached to the pivot 11. A ratchet portion 21 is provided on the outer circumferential surface of the ratchet 20. The ratchet portion 21 has a tooth-like shape arranged in an annular pattern. A first fitting portion 22 is provided inside the ratchet 20. The first fitting portion 22 has a dodecagonal or hexagonal groove shape. The first fitting portion 22 has a through hole. The ratchet 20 is provided with a first storage tank 23. The first storage tank 23 is provided near the opening of the first fitting portion 22. The first storage tank 23 communicates with the first fitting portion 22. The first storage tank 23 has an annular concave groove shape. The ratchet 20 is provided with two second storage tanks 24. The two second storage tanks 24 are provided on both sides of the first fitting portion 22. The two second storage tanks 24 face each other. The second storage tanks 24 communicate with the first storage tank 23 and the first fitting portion 22. The extension direction of the second storage tanks 24 is the same as the extension direction of the first fitting portion 22. The second storage tanks 24 have an elongated concave shape.

[0014] The ratchet 20 is provided with at least one engagement groove 25. The engagement groove 25 communicates with the first fitting portion 22 and the second housing groove 24. The engagement groove 25 is located below the ratchet portion 21. The engagement groove 25 and the first housing groove 23 are located at the upper and lower ends of the first fitting portion 22, respectively. The engagement groove 25 may or may not penetrate the ratchet 20 laterally. When the engagement groove 25 is a penetrating groove, it communicates with each of the two second housing grooves 24. When the engagement groove 25 is a non-penetrating groove, it communicates with only one of the second housing grooves 24. The engagement groove 25 has a circular groove shape. An inclined surface 26 is provided at the first end of the ratchet 20. The inclined surface 26 is located above the first housing groove 23. The inclined surface 26 has a concave conical shape. The ratchet 20 is provided with a first rotating disc 27. The outer diameter of the first rotating disc 27 is larger than the outer diameter of the ratchet portion 21. The first rotating disc 27 protrudes outward from the main body 10. The first storage tank 23, the inclined surface 26, and the first rotating disc 27 are all located at the same end of the ratchet 20.

[0015] When the first fitting portion 22 has a dodecagonal groove shape, the first fitting portion 22 is provided with a first hexagon 28 and six vertices 29, two of which vertices 29 correspond to the positions of two second storage grooves 24, respectively. The first fitting portion 22 is provided with a second hexagon 291. The dodecagonal groove of the first fitting portion 22 is formed by the alternating arrangement of the second hexagon 291 and the first hexagon 28. The distance between the first hexagon 28 and the second hexagon 291 is 30 degrees.

[0016] The engaging member 30 has a circular cross-section or various other shapes. The engaging member 30 is provided with two first housing sections 31. The two first housing sections 31 are housed on both sides of the first housing tank 23, respectively. The first housing sections 31 have a curved, arc-shaped columnar form. The engaging member 30 is provided with a blocking section 32. The blocking section 32 is housed within the first housing tank 23 and is partially exposed at the location of the first hexagon 28. The blocking section 32 connects the two first housing sections 31. The blocking section 32 is provided between the two first housing sections 31. The two first housing sections 31 are symmetrical with respect to the blocking section 32. The blocking section 32 has a columnar form. A second housing section 33 is provided at one end of each first housing section 31. The second housing section 33 is housed within the second housing tank 24. The second housing section 33 and the first housing section 31 are perpendicular to each other. The two second housing sections 33 are symmetrical with respect to the blocking section 32. The second housing sections 33 have a columnar shape.

[0017] At least one of the second housing sections 33 is provided with a convex contact section 34, or all of the second housing sections 33 are provided with a convex contact section 34. The convex contact section 34 protrudes slightly within the range of the first fitting section 22. The convex contact section 34 has elasticity that allows it to contract inward. The convex contact section 34 is located approximately midway between the second housing sections 33. The convex contact section 34 has the shape of a convex arc-shaped column. An engaging end 35 is provided at the first end of each second housing section 33. The engaging end 35 penetrates the engaging groove 25 and contacts the contact section 12, and the ratchet 20 is pivotally attached to the pivot 11 while being restricted by the first rotating disc 27 and the engaging member 30. The engaging end 35 is perpendicular to the second housing section 33 and has a cylindrical shape.

[0018] The engaging member 30 is linear in shape, and the first housing portion 31, the blocking portion 32, the second housing portion 33, the convex contact portion 34, and the engaging end 35 are formed by bending, so that the cross-section of each part of the engaging member 30 has the same shape.

[0019] The fitting member 40 is fitted onto the ratchet 20. The fitting member 40 can be removed from the ratchet 20. A second fitting portion 41 is provided on the outside of the fitting member 40. The second fitting portion 41 is fitted onto the first fitting portion 22. The second fitting portion 41 conforms to the shape of the first fitting portion 22. The second fitting portion 41 has a dodecagonal prism shape, a hexagonal prism shape, or a fitting shape. Because the second fitting portion 41 is elastically held by the convex contact portion 34, the second fitting portion 41 is less likely to fall off the first fitting portion 22. The end face of the second fitting portion 41 is in contact with the blocking portion 32 or has a small gap between it and the blocking portion 32.

[0020] A third fitting portion 42 is provided within the fitting member 40. The third fitting portion 42 is a through hole. The third fitting portion 42 has a hexagonal groove shape. The third fitting portion 42 is provided with a contact edge 43. The contact edge 43 is provided on one of the surfaces of the third fitting portion 42. The distance from the contact edge 43 to the axis of the fitting member 40 is smaller than the distance from the other surface of the third fitting portion 42 to the axis of the fitting member 40. That is, the distance from the contact edge 43 to the axis of the fitting member 40 is relatively short. The contact edge 43 has a planar convex mass shape.

[0021] A third storage compartment 44 is provided in the fitting member 40. The third storage compartment 44 is located near the opening at the bottom of the fitting member 40. The third storage compartment 44 has a concave annular shape. A second rotating disc 45 is provided at the bottom of the fitting member 40. The outer diameter of the second rotating disc 45 is larger than the outer diameter of the second fitting portion 41. The second rotating disc 45 protrudes outward from the main body 10 and the fitting member 40. The second rotating disc 45 and the first rotating disc 27 are arranged separately at the upper and lower ends of the main body 10.

[0022] The first retaining ring 50 is a slightly elastic C-shaped ring. The first retaining ring 50 is hooked onto the third storage tank 44. A portion of the first retaining ring 50 is exposed at the location of the third fitting portion 42.

[0023] The first extension rod 60 is provided with a first hexagonal portion 61. The first hexagonal portion 61 can be fitted with a third fitting portion 42. The first retaining ring 50 is elastically clamped on the vertex of the first hexagonal portion 61, making it difficult for the first hexagonal portion 61 to come off the third fitting portion 42. The first hexagonal portion 61 is a hexagonal prism, and a first end portion 62 is provided at one end of the first hexagonal portion 61. The first end portion 62 has a hexagonal surface shape. The first extension rod 60 is provided with a through portion 63. The through portion 63 is provided on one of the faces of the first hexagonal portion 61. The extension length of the through portion 63 is the same as the longitudinal direction of the first hexagonal portion 61. The distance from the through portion 63 to the axis of the first extension rod 60 is smaller than the distance from the other face of the first hexagonal portion 61 to the axis of the first extension rod 60. The distance from the through portion 63 to the axis of the first extension rod 60 is relatively short, and the through portion 63 has a planar shape.

[0024] The first extension rod 60 is provided with a second hexagonal portion 64, and after the fitting member 40 is removed, the second hexagonal portion 64 can be fitted with the first fitting portion 22. The dimensions of the second hexagonal portion 64 are larger than those of the first hexagonal portion 61. The second hexagonal portion 64 is provided at approximately the midpoint of the first extension rod 60. The diameter of the inscribed circle of the second hexagonal portion 64 is larger than the diameter of the inscribed circle of the first hexagonal portion 61. The second hexagonal portion 64 is a hexagonal prism.

[0025] Refer to Figure 10. Figure 10 is a perspective view showing a first operating state of a ratchet wrench structure according to the first embodiment of the present invention. As shown in Figure 10, the first hexagonal portion 61 is fitted with the third fitting portion 42, and the through portion 63 can be selected to be either not facing or facing the contact edge 43. When the through portion 63 and the contact edge 43 are not facing each other, the first end portion 62 and the contact edge 43 come into contact with each other, and the contact edge 43 prevents the first end portion 62 from protruding outside the main body 10. When the first extension rod 60 is fitted with the third fitting portion 42 at a different angle, that is, when the through portion 63 is fitted facing the contact edge 43, the through portion 63 can pass through the contact edge 43, the first end portion 62 is exposed outside the main body 10, and the first hexagonal portion 61 can be adjusted relative to the main body 10. The first extension rod 60 and the third fitting portion 42 can be fitted at two different angles, namely, the through portion 63 is either facing or not facing the contact edge 43.

[0026] Refer to Figure 11. Figure 11 is a perspective view showing a second operating state of the ratchet wrench structure according to the first embodiment of the present invention. As shown in Figure 11, when the fitting member 40 is removed and the second hexagonal portion 64 is fitted into the first fitting portion 22, almost the entire first hexagonal portion 61 protrudes outward. The two convex contact portions 34 abut against the two vertices of the second hexagonal portion 64, respectively. The two convex contact portions 34 are slightly contracted inward by the second hexagonal portion 64 and elastically abut against the two vertices of the second hexagonal portion 64, so that the first extension rod 60 is elastically engaged with the main body 10.

[0027] The second hexagonal portion 64 can choose to face either the first hexagon 28 or the second hexagon 291 relative to the first fitting portion 22. When the second hexagonal portion 64 faces the first hexagon 28, the first end portion 62 may protrude outward from the main body 10. When the third hexagonal portion 71 faces the second hexagon 291, the first end portion 62 does not protrude outward from the main body 10. Regardless of whether the second hexagonal portion 64 faces the first hexagon 28 or the second hexagon 291, the convex contact portion 34 may contact the two vertices of the second hexagonal portion 64.

[0028] Refer to Figure 12. Figure 12 is a perspective view showing a third operating state of the ratchet wrench structure according to the first embodiment of the present invention. As shown in Figure 12, the ratchet wrench structure according to the first embodiment of the present invention is provided with a second extension rod 70. The second extension rod 70 has a different, larger size than the first extension rod 60. The second extension rod 70 is provided with a third hexagonal portion 71 and a second end portion 72. The third hexagonal portion 71 is fitted into the first fitting portion 22. The dimensional specifications of the third hexagonal portion 71 are the same as those of the second hexagonal portion 64. That is, the dimensional specifications of the third hexagonal portion 71 are larger than those of the first hexagonal portion 61. The first extension rod 60 is a commercially available structure. The second extension rod 70 is not provided with a through portion 63.

[0029] The third hexagonal portion 71 can choose to face either the first hexagon 28 or the second hexagon 291 relative to the first fitting portion 22. When the third hexagonal portion 71 faces the first hexagon 28, the second end portion 72 is not restricted by the blocking portion 32 and can protrude outward from the main body 10. When the third hexagonal portion 71 faces the second hexagon 291, the second end portion 72 abuts against the blocking portion 32 and does not protrude outward from the main body 10. Regardless of whether the third hexagonal portion 71 faces the first hexagon 28 or the second hexagon 291, the convex contact portion 34 can abut against the two vertices of the third hexagonal portion 71.

[0030] (Second Embodiment) Refer to Figure 13. Figure 13 is an exploded perspective view showing a ratchet wrench structure according to the second embodiment of the present invention. As shown in Figure 13, the ratchet 20 of the ratchet wrench structure according to the second embodiment of the present invention is provided with an additional retaining ring groove 292. The retaining ring groove 292 is provided below the ratchet portion 21, and there is no engaging member 30. The second fitting portion 41 is hexagonal prism-shaped, and the fitting member 40 is not provided with a third housing tank 44 and a second rotating disc 45. As a result, there is no first retaining ring 50, and a second retaining ring 80 is added. The second retaining ring 80 is hooked into the retaining ring groove 292 and also contacts the contact portion 12, and the ratchet 20 is pivotally attached to the main body 10 while being restricted by the second retaining ring 80. The fitting groove 13 is provided to the same specifications as the second fitting portion 41, and after the fitting member 40 is removed, the fitting member 40 can be fitted into the fitting groove 13.

[0031] (Third embodiment) Refer to Figure 14. Figure 14 is an exploded perspective view showing a ratchet wrench structure according to the third embodiment of the present invention. As shown in Figure 14, a fourth storage compartment 46 is added to the fitting member 40 of the ratchet wrench structure according to the third embodiment of the present invention. The fourth storage compartment 46 is located away from the third storage compartment 44 and has a third retaining ring 81. The third retaining ring 81 is assembled in the position of the fourth storage compartment 46.

[0032] (Fourth Embodiment) Refer to Figure 15. Figure 15 is an exploded perspective view showing a ratchet wrench structure according to the fourth embodiment of the present invention. As shown in Figure 15, the ratchet 20 of the ratchet wrench structure according to the fourth embodiment of the present invention is provided with an additional retaining ring groove 292. The retaining ring groove 292 is provided below the ratchet portion 21 and is provided with a second retaining ring 80. The second retaining ring 80 is hooked into the retaining ring groove 292 and contacts the contact portion 12, and the ratchet 20 is pivotally attached to the main body 10 while being restricted by the second retaining ring 80. The fitting member 40 is provided with a fifth housing tank 47. The fifth housing tank 47 communicates with the second fitting portion 41 and the third fitting portion 42 and has a fourth retaining ring 82. The fourth retaining ring 82 is assembled in the position of the fifth housing tank 47. The fourth retaining ring 82 is elastically capable of contacting the first fitting portion 22, and the fourth retaining ring 82 is also capable of elastically contacting the first hexagonal portion 61.

[0033] As can be seen from the above, the ratchet wrench structure according to the present invention has the following advantages (1) to (11).

[0034] (1) The fitting member 40 may or may not be fitted onto the first fitting portion 22, and the present invention has two different standards, the first fitting portion 22 and the third fitting portion 42, which allows the hexagonal rod structure to be fitted.

[0035] (2) The through portion 63 may choose not to face or face the abutment edge 43. When the first extension rod 60 and the fitting member 40 are fitted in the first position, that is, when the through portion 63 does not face the abutment edge 43, the abutment edge 43 and the first end portion 62 come into contact with each other, and a contact effect is obtained. When the first extension rod 60 is fitted in the second position, that is, when the through portion 63 faces the abutment edge 43, the first extension rod 60 can be adjusted in position relative to the main body 10 and does not have a contact effect. In other words, there are two effects between the first extension rod 60 and the fitting member 40: with contact and without contact.

[0036] (3) With the fitting member 40 fitted into the first fitting portion 22, the passing portion 63 can choose to be either not facing or facing the abutting edge 43. The abutting edge 43 has the effect of either making the first extension rod 60 come into contact with it or not. When the first extension rod 60 and the fitting member 40 are fitted in the first position, the first end portion 62 and the abutting edge 43 come into contact, so that the first end portion 62 does not protrude outward from the main body 10, and the abutting edge 43 comes into contact with the first end portion 62. When the first extension rod 60 is fitted in the second position, that is, when the passing portion 63 faces the abutting edge 43, the first end portion 62 can pass through the abutting edge 43, the abutting edge 43 does not come into contact with the first end portion 62, and the first hexagonal portion 61 can be adjusted relative to the main body 10.

[0037] (4) When the fitting member 40 is fitted into the first fitting portion 22, the two convex contact portions 34 abut against the two vertices of the second fitting portion 41. The convex contact portions 34 are slightly contracted inward by the second fitting portion 41 and elastically abut against the two vertices of the second fitting portion 41. The engaging member 30 elastically abuts the fitting member 40, so that the fitting member 40 is elastically engaged with the ratchet 20 and is less likely to fall out of the ratchet 20.

[0038] (5) Because the first retaining ring 50 is assembled to the position of the third storage tank 44, even when the first hexagonal portion 61 and the third fitting portion 42 are fitted at either of the two positions, the first retaining ring 50 can engage at the position of the apex of the first hexagonal portion 61, and when the first hexagonal portion 61 is fitted to the second fitting portion 41 at two different positions, it has an engagement positioning function in both cases.

[0039] (6) When the fitting member 40 is removed, the first fitting portion 22 can be fitted into the second hexagonal portion 64, and the second hexagonal portion 64 can also be fitted into the first fitting portion 22 by selecting one of two angular positions, and the blocking portion 32 will either be in contact with the end face of the second hexagonal portion 64 or will not be in contact with the end face of the second hexagonal portion 64. Regardless of which of the two angles the second hexagonal portion 64 is fitted into, the two convex contact portions 34 will be in contact with the two vertices of the second hexagonal portion 64, respectively, and the first extension rod 60 will be elastically engaged and fixed to the main body 10.

[0040] (7) The engaging member 30 is provided with a first housing portion 31, a blocking portion 32, a second housing portion 33, a convex contact portion 34, and an engaging end 35. The blocking portion 32 has a contact effect. The convex contact portion 34 has an elastic engagement effect. The engaging end 35 is inserted into the engaging groove 25 and contacts the contact portion 12, and the engaging member 30 has the effect of pivoting the ratchet 20 so that the ratchet 20 is pivotally attached to the pivot portion 11 while being restricted by the first rotating disc 27 and the engaging member 30. In other words, the engaging member 30 has three different effects: a contact effect, elastic engagement, and pivoting of the ratchet 20.

[0041] (8) The third hexagonal portion 71 may choose to face either the first hexagon 28 or the second hexagon 291 relative to the first fitting portion 22. When the third hexagonal portion 71 faces the first hexagon 28, the second end portion 72 is not restricted by the blocking portion 32 and may protrude outward from the main body 10. When the third hexagonal portion 71 faces the second hexagon 291, the second end portion 72 abuts against the blocking portion 32 and does not protrude outward from the main body 10. Regardless of whether the third hexagonal portion 71 faces the first hexagon 28 or the second hexagon 291, the convex contact portion 34 may abut against the two vertices of the third hexagonal portion 71.

[0042] (9) Even when the engaging member 30 is not assembled to the ratchet 20, the ratchet 20 is provided with the first storage compartment 23 and the second storage compartment 24, but this does not affect the original effect of the ratchet 20. The ratchet 20 of the present invention can be assembled to a general ratchet wrench structure, and the ratchet 20 of the present invention can share parts with a general ratchet wrench structure.

[0043] (10) The engaging member 30 is linear in shape, and the first housing portion 31, the blocking portion 32, the second housing portion 33, the convex contact portion 34, and the engaging end 35 are formed by bending according to the manufacturing method, so the component cost of the engaging member 30 does not increase significantly.

[0044] (11) The main body 10 is provided with a fitting groove 13, which can accommodate various hexagonal rod structures commonly found in conventional hand tools, such as a screwdriver bit structure. The first hexagonal part 61 can be fitted into the position of the fitting groove 13 to rotate the first extension rod 60, or, as in the second embodiment of Figure 13, the second fitting part 41 can be fitted onto the fitting groove 13. [Explanation of symbols]

[0045] 10 Main Unit 11 Central 12 Contact part 13 Fitting groove 20 Ratchets 21 Ratchet section 22 First mating part 23. First containment tank 24 Second containment tank 25 Engagement tank 26 Slope 27. The first rotating disc 28 The first hexagon 29 vertices 30 Engaging member 31. First containment section 32 Blocking part 33 Second containment section 34 Convex contact part 35 Engagement end 40 Fitting member 41 Second mating part 42 Third mating part 43 Abutting edge 44 Third containment tank 45. The second rotating disc 46. ​​Fourth containment tank 47. Fifth containment tank 50 First retaining ring 60 First Extension Rod 61 First hexagonal section 62 First end 63 Passage section 64 Second hexagonal section 70 Second Extension Rod 71 Third hexagonal section 72 Second end 80 Second retaining ring 81. Third retaining ring 82. The fourth retaining ring 291 The second hexagon 292 Retaining ring groove

Claims

1. A ratchet wrench structure comprising a body, ratchet, engaging member, fitting member, first retaining ring and first extension rod, A pivot portion is provided at one end of the main body, the pivot portion has a through hole, a contact portion is provided on the main body, the contact portion is provided at the bottom opening of the pivot portion, and a fitting groove is provided at the rear end of the main body, the fitting groove has a hexagonal or dodecagonal groove shape, The ratchet is pivotally attached to the pivot, and a ratchet portion is provided on the outer surface of the ratchet, the ratchet portion has a tooth shape arranged in an annular pattern, a first fitting portion is provided inside the ratchet, the first fitting portion has a dodecagonal groove shape or a hexagonal groove shape, the first fitting portion has a through hole, the ratchet is provided with a first housing tank, the first housing tank is provided near the opening of the first fitting portion, and the first housing tank is The first housing tank communicates with the first fitting portion, and the first housing tank has an annular concave shape. The ratchet is provided with two second housing tanks, the two second housing tanks are provided on both sides of the first fitting portion, the two second housing tanks face each other, the second housing tanks communicate with the first housing tank and the first fitting portion, the extension direction of the second housing tank is the same as the extension direction of the first fitting portion, and the second housing tank has an elongated concave shape. The ratchet is provided with at least one engagement groove, the engagement groove is in communication with a first fitting portion and a second housing groove, the engagement groove is located below the ratchet portion, the engagement groove and the first housing groove are located at the upper and lower ends of the first fitting portion, the engagement groove may or may not penetrate the ratchet laterally, when the engagement groove is in a penetrating position, the engagement groove is in communication with two second housing grooves, when the engagement groove is not in a penetrating position, the engagement groove is in communication with two second housing grooves It communicates with only one of the storage tanks, the engagement tank has a circular groove shape, the first end of the ratchet has an inclined surface, the inclined surface is located above the first storage tank, the inclined surface has a concave conical surface, the ratchet is provided with a first rotating disc, the outer diameter of the first rotating disc is larger than the outer diameter of the ratchet part, the first rotating disc protrudes outward from the main body, the first storage tank, the inclined surface and the first rotating disc are located at the same end of the ratchet. When the first fitting portion has a dodecagonal groove shape, the first fitting portion is provided with a first hexagon and six vertices, two of which correspond to the positions of two second storage grooves, and the first fitting portion is provided with a second hexagon, and the first fitting portion of the dodecagonal groove is formed by the alternating arrangement of the second hexagon and the first hexagon, with a spacing of 30 degrees between the first and second hexagons. The engaging member has a circular cross-section, and is provided with two first housing sections, each housing on either side of the first housing chamber, and the first housing sections are curved arc-shaped columns. The engaging member is provided with a blocking section, which is housed within the first housing chamber and partially exposed at the first hexagonal section, which connects the two first housing sections, which is provided between the two first housing sections, which are symmetrical with respect to the blocking section, which are columns, and each first housing section has a second housing section at one end, which is housed within the second housing chamber, which are perpendicular to each other, which are symmetrical with respect to the blocking section, which are columns. At least one of the second housings is provided with a convex contact portion, or all of the second housings are provided with convex contact portions, the convex contact portion protrudes slightly within the range of the first fitting portion, the convex contact portion has elasticity that allows it to contract inward, the convex contact portion is located approximately midway between the second housings, the convex contact portion has the shape of a convex arc column, the first end of each second housing is provided with an engaging end, the engaging end penetrates the engaging groove and contacts the contact portion, the ratchet is pivotally attached to the pivot while being restricted by the first rotating plate and engaging member, the engaging end is perpendicular to the second housing and has the shape of a cylinder, The fitting member is fitted onto a ratchet, and the fitting member can be removed from the ratchet. A second fitting portion is provided on the outside of the fitting member, and the second fitting portion is fitted onto the first fitting portion. The second fitting portion conforms to the shape of the first fitting portion, and the second fitting portion is elastically held by a convex contact portion, so that the second fitting portion is less likely to fall off the first fitting portion. The end face of the second fitting portion is in contact with the blocking portion or has a small gap between it and the blocking portion. Within the fitting member, a third fitting portion is provided, the third fitting portion has a through hole, and the third fitting portion has a contact edge, the contact edge is provided on one of the surfaces of the third fitting portion, the distance from the contact edge to the axis of the fitting member is smaller than the distance from the other surface of the third fitting portion to the axis of the fitting member, that is, the distance from the contact edge to the axis of the fitting member is relatively short, and the contact edge has a planar convex mass shape. The fitting member is provided with a third housing chamber, which is located near the opening at the bottom of the fitting member and has a concave annular shape. A second rotating disc is provided at the bottom of the fitting member, the outer diameter of the second rotating disc is larger than the outer diameter of the second fitting portion, the second rotating disc protrudes outward from the main body and the fitting member, and the second rotating disc and the first rotating disc are arranged separately at the upper and lower ends of the main body. The first retaining ring is a slightly elastic C-shaped ring body, the first retaining ring is hooked onto the third storage tank, and a portion of the first retaining ring is exposed at the location of the third fitting portion. The first extension rod is provided with a first hexagonal portion, which can engage with a third fitting portion, and the first retaining ring is elastically held on the vertex of the first hexagonal portion, making it difficult for the first hexagonal portion to come off the third fitting portion, the first hexagonal portion is a hexagonal prism, one end of the first hexagonal portion is provided with a first end, the first end has a hexagonal surface shape, the first extension rod is provided with a through portion, which is provided on one of the faces of the first hexagonal portion, the extension length of the through portion is the same as the longitudinal direction of the first hexagonal portion, the distance from the through portion to the axis of the first extension rod is smaller than the distance from the other face of the first hexagonal portion to the axis of the first extension rod, the distance from the through portion to the axis of the first extension rod is relatively short, and the through portion has a planar surface. A ratchet wrench structure characterized in that the first extension rod is provided with a second hexagonal portion, the second hexagonal portion can be fitted with the first fitting portion after the fitting member is removed, the dimensions of the second hexagonal portion are larger than those of the first hexagonal portion, the second hexagonal portion is provided at approximately the midpoint of the first extension rod, the diameter of the inscribed circle of the second hexagonal portion is larger than the diameter of the inscribed circle of the first hexagonal portion, and the second hexagonal portion is a hexagonal prism.

2. The main body has a ratchet wrench structure, The ratchet wrench structure according to claim 1, characterized in that basic components necessary for a ratchet wrench, such as braking teeth, are installed inside the pivot part.

3. The ratchet wrench structure according to claim 1, characterized in that the engaging member is linear in shape, and the first housing portion, blocking portion, second housing portion, convex contact portion and engaging end are formed by bending, so that the cross-section of each part of the engaging member has the same shape.

4. The ratchet wrench structure according to claim 1, characterized in that the second fitting portion is in the shape of a dodecagonal prism or a hexagonal prism.

5. The ratchet wrench structure according to claim 1, characterized in that the third fitting portion has a hexagonal groove shape.

6. The ratchet wrench structure according to claim 1, characterized in that the first hexagonal portion is fitted with the third fitting portion, the through portion can be selected to be either facing or not facing the contact edge, when the through portion and the contact edge are not facing each other, the first end and the contact edge come into contact with each other, and the contact edge prevents the first end from protruding outward from the main body, and when the first extension rod is fitted with the third fitting portion at a different angle, that is, when the through portion is fitted facing the contact edge, the through portion can pass through the contact edge, the first end is exposed outward from the main body, the first hexagonal portion can be positioned relative to the main body, and the first extension rod and the third fitting portion can be fitted at two different angles, that is, the through portion is either facing or not facing the contact edge.

7. When the fitting member is removed and the second hexagonal portion is fitted into the first fitting portion, the first hexagonal portion protrudes almost entirely outward, the two convex contact portions abut against the two vertices of the second hexagonal portion, the two convex contact portions are slightly contracted inward by the second hexagonal portion and elastically abut against the two vertices of the second hexagonal portion, and the first extension rod becomes elastically engaged with the main body. The ratchet wrench structure according to claim 1, characterized in that the second hexagonal portion can be selected to face either the first hexagon or the second hexagon with respect to the first fitting portion, and when the second hexagonal portion faces the first hexagon, the first end can protrude outward from the main body, and when the third hexagonal portion faces the second hexagon, the first end does not protrude outward from the main body, and regardless of whether the second hexagonal portion faces the first hexagon or the second hexagon, the convex contact portion can contact the two vertices of the second hexagon.

8. Having a second extension rod, The second extension rod has a different, larger size than the first extension rod. The ratchet wrench structure according to claim 1, characterized in that the second extension rod is provided with a third hexagonal portion and a second end, the third hexagonal portion is fitted into the first fitting portion, the dimensions of the third hexagonal portion are the same as those of the second hexagonal portion, that is, the dimensions of the third hexagonal portion are larger than those of the first hexagonal portion, the first extension rod is of a generally commercially available structure, and the second extension rod is not provided with a through portion.

9. The third hexagonal portion may be selected to face either the first hexagon or the second hexagon relative to the first fitting portion. The ratchet wrench structure according to claim 1, characterized in that when the third hexagonal portion faces the first hexagon, the second end is not restricted by the blocking portion and the second end can protrude outward from the main body, when the third hexagonal portion faces the second hexagon, the second end abuts against the blocking portion and the second end does not protrude outward from the main body, and regardless of whether the third hexagonal portion faces the first hexagon or the second hexagon, the convex contact portion can abut against the two vertices of the third hexagonal portion.

10. The ratchet is provided with an additional retaining ring groove. The retaining ring groove is provided below the ratchet portion, The ratchet wrench structure according to claim 1, characterized in that the second fitting portion has a hexagonal prism shape, a second retaining ring is added, the second retaining ring is hooked into a retaining ring groove and also contacts the contact portion, the ratchet is pivotally mounted on the main body while being restricted by the second retaining ring, the fitting groove is provided to the same specifications as the second fitting portion, and after the fitting member is removed, the fitting member can be fitted into the fitting groove.

11. The aforementioned fitting member is provided with a fourth storage tank. The fourth containment tank is located away from the third containment tank and has a third retaining ring. The ratchet wrench structure according to claim 1, characterized in that the third retaining ring is assembled to the position of the fourth storage tank.

12. The ratchet is provided with an additional retaining ring groove. The retaining ring groove is provided below the ratchet section, and a second retaining ring is added thereto. The ratchet wrench structure according to claim 1, characterized in that the second retaining ring is hooked into a retaining ring groove and abuts against a contact portion, the ratchet is pivotally mounted on the main body while being restricted by the second retaining ring, the fitting member is provided with a fifth housing groove, the fifth housing groove communicates with the second fitting portion and the third fitting portion and has a fourth retaining ring, the fourth retaining ring is assembled in the position of the fifth housing groove, the fourth retaining ring is elastically able to abut against the first fitting portion, and the fourth retaining ring is also able to elastically abut against the first hexagonal portion.

Images