TWI825944B - Ratchet wrench structure - Google Patents

Abstract

The invention relates to a ratchet wrench structure, which includes: a system provided with a first receptacle, a second receptacle, a first side surface, a third receptacle, a fourth receptacle, and a receptacle cover. groove, a closed end, a buckle groove and a first contact surface; a ratchet system is provided with a ratchet part and a fitting part; a gear is provided with an engaging part, a first diameter, a concave arc groove, and a The bump and a second side surface; a steering group, the steering group is pivoted in the third groove, the steering group rotates to control the left and right displacement of the gear in the second groove, the steering group The system includes a steering piece, a first top cap and a first elastic piece; a cover; a buckle; a second top cap and a second elastic piece; the second top cap and the second elastic piece are opposite to each other. After assembly, it is placed in the fourth container.

Description

Ratchet wrench structure

The present invention relates to a ratchet wrench structure, and particularly refers to a ratchet wrench structure in which there are two limiting structures between the steering group and the gear. When the ratchet wrench collides, the steering member is disengaged from the third container. The probability of slotting is greatly reduced, and the steering system has structural safety.

According to our previous knowledge, the conventional ratchet wrench structure, such as U.S. Patent No. 2957377, consists of a body 10, and the body 10 is provided with a first receiving groove 13, a second receiving groove 16 and a third receiving groove. accommodating groove 24; a ratchet wheel 14, the ratchet wheel 14 is pivoted at the first receiving groove 13, the outer circumference of the ratchet wheel 14 is provided with a ratchet portion 15; a gear tooth 19, the gear gear 19 is accommodated in the second container At the groove 16, one side of the gear 19 is provided with annularly arranged engaging teeth 20. The engaging teeth 20 mesh with the ratchet portion 15. The other side of the gear 19 is provided with a groove 27; a steering button 23. The steering button 23 is pivoted at the third receiving groove 24. The steering button 23 is provided with a limiting groove 28; an elastic body 26. One end of the elastic body 26 is accommodated in the groove 27. The other end of the body 26 is accommodated in the restriction groove 28; the body 10, the ratchet 14, the gear 19, the steering button 23 and the elastic body 26 are the basic components constituting the ratchet wrench structure. The steering button 23 When the third receiving groove 24 rotates, the elastic body 26 is driven to rotate at an angle, and the elastic body 26 drives the gear tooth 19 to be displaced at the second receiving groove 16, thus forming the correct structure of the ratchet wrench. Reversal control, this is also the forward and reverse principle of the ratchet wrench structure.

One end of the elastic body 26 is accommodated in the groove 27 , the gear 19 restricts the elastic body 26 , and the other end of the elastic body 26 is accommodated in the restricting groove 28 , and the elastic body 26 restricts the steering button 23 , and the steering button 23 is provided with an annular groove 36 and a ring 37. The ring 37 is disposed in the annular groove 36, and the ring 37 is clamped on the inner peripheral surface of the third groove 24. On the other hand, the steering button 23 is pivoted at the third receiving groove 24 through the elastic body 26 and the ring 37. This is the structure disclosed in the patent case.

However, the shortcomings of the structure of U.S. Patent No. 2957377 are:

Please refer to Figure 4 of the publication. The ring 37 is clamped on the inner peripheral surface of the third groove 24 only by friction force. Basically, the elastic body is restricted by the teeth 19. 26 and the elastic body 26 further restricts the steering button 23 so that the steering button 23 is pivoted at the third groove 24. However, the ratchet wrench may accidentally fall to the ground during operation. When the ratchet wrench collides, only There is a restriction structure that can easily cause the steering button 23 to disengage from the third groove 24, so that the ratchet wrench cannot continue to rotate.

Another U.S. patent case number: US6282992B1, please refer to Figures 1 and 9 of the publication. The ratchet wrench structure of this patent also includes a body 12, a ratchet 72, a gear 40, a steering button 50 and a Basic components such as the elastic body 92. The patent also discloses a spring cap 90 in Figure 9. The spring cap 90 is sleeved on the elastic body 92, and one end of the spring cap 90 is accommodated in the groove 42. The other end of the spring cap 90 is disposed in the restricting groove 521, so that the steering button 50 is pivoted in the third receiving groove 15 without being disengaged. This is a patented structure disclosed in US Pat. No. 6,282,992B1.

US Patent No. 6282992B1 discloses the spring cap 90, so that the spring cap 90 is restricted by the gear 40, and the spring cap 90 further restricts the steering button 50. When the ratchet wrench collides, The restriction structure at only one point can easily cause the steering button 50 to disengage from the third groove 15, making it impossible for the ratchet wrench to continue rotating. Patent No. US6282992B1 has the same shortcoming as Patent No. 2957377.

In view of the shortcomings of the conventional structure mentioned above, the inventor has finally come up with a product with a ratchet wrench structure that can solve the shortcomings of the conventional structure through many years of manufacturing, production and design experience in related industries.

In the conventional ratchet wrench structure, the ratchet wrench touches In the event of a collision, there is only one limiting structure that can easily cause the steering button to disengage, making it impossible for the ratchet wrench to continue rotating. In the ratchet wrench structure of the present invention, there are two limiting structures between the steering group and the gear. When the ratchet wrench collides, the probability of the steering member disengaging from the third groove is greatly reduced.

The invention relates to a ratchet wrench structure, The system includes: a system provided with a first receptacle, a second receptacle, a first side, a third receptacle, a fourth receptacle, a cover recess, a closed end, and a buckle. An annular groove and a first contact surface; a ratchet system is provided with a ratchet part and a fitting part; a gear is provided with an engaging part, a first diameter, a concave arc groove, a convex block and a second side surface; A steering group, the steering group is pivoted in the third groove, the steering group rotates to control the left and right displacement of the gear in the second groove, the steering group includes a steering piece, a first A top cap and a first elastic member; a cover; a buckle; a second top cap and a second elastic member; the second top cap and the second elastic member are assembled and accommodated in the third In four slots.

At least one third contact portion of the steering member abuts On the second resisting part, the first top cap is abutted on the first resisting part, the gear restricts the third resisting part and the first top cap, and the first top cap is accommodated in the limiting groove Inside, the steering group is pivoted in the third groove, and there are two limiting structures between the steering group and the gear. When the ratchet wrench collides, the steering piece is disengaged from the third groove. The probability is greatly reduced. The first top cap is pressed against the concave arc groove by the elastic force of the first elastic member, and the resisting portion is accommodated on the first surface. When the steering member is rotated, the resisting portion The department will automatically enter the first surface and have automatic positioning function.

In order to enable members of the Jun Bureau and those skilled in the art to fully understand the effects of the present invention, the structure and composition of the present invention are described below with reference to drawings and figure numbers. However, the following is only used to explain the implementation of the present invention. Examples are not intended to limit the present invention in any form, and any modifications and changes made within the spirit of the present invention should still fall within the protection scope of the present invention.

10:Ontology

11: First slot

12:Second slot

121:First side

122: First arc surface

13:Third slot

14:Fourth slot

15: Cover slot

16: closed end

17:Buckle groove

18: missing slot

181: First arrival

19:First angle

20:ratchet

21: Ratchet part

22: Fitting Department

23: First end face

24: First ring groove

25: concave part

28:The first ring body

30: Gear making

31:Occlusal part

311: first diameter

312:First tooth part

313:Second tooth part

32: concave arc groove

321: First side

322:Second side

323:The third side

33: Bump

34: First arrival

35:Second Arrival

36:Second side

40: Steering group

41: Steering parts

411:Cylinder block

412: Limit slot

413: The third arrival

414:Dial button

415: first groove

416: Second groove

417:Second ring groove

42:First hat

421:butting part

422:Cylinder

423:First cone surface

43:First elastic member

44:Second ring body

50: Cover

51:Perforation

60:Buckle

70:Second hat

71: Second elastic member

Figure 1 is an exploded perspective view of the ratchet wrench structure of the present invention.

Figure 2 is a bottom view of the ratchet wrench structure body of the present invention.

Figure 3 is a side view of the ratchet wrench structural body of the present invention.

Figure 4 is a three-dimensional view of the teeth of the ratchet wrench structure of the present invention.

Figure 5 is a top view of the ratchet wrench structure of the present invention.

Figure 6 is an exploded perspective view of the steering assembly of the ratchet wrench structure of the present invention.

Figure 7 is a perspective view of the steering component of the ratchet wrench structure of the present invention.

Figure 8 is a top view of the first top cap of the ratchet wrench structure of the present invention.

Figure 9 is a three-dimensional assembly view of the ratchet wrench structure of the present invention.

Figure 10 is a perspective view of the ratchet wrench structure of the present invention from another perspective.

Figure 11 is a side view of the ratchet wrench structure of the present invention.

Figure 12 is a cross-sectional view taken along line A-A of Figure 11 of the present invention.

Figure 13 is an enlarged view of B in Figure 12 of the present invention.

Figure 14 is a three-dimensional assembled view of some structural components of the ratchet wrench of the present invention.

36係呈凸弧面狀，該第二邊面36靠抵於該第一邊面121時，二者之間相接觸處係呈一線段，使該制齒30係可以該線段為軸心略旋轉，該咬合部31係更易與該棘輪部21相嚙合；一轉向組40，請輔以圖6所示，該轉向組40係樞設於該第三容槽13內，該轉向組40係轉動而控制該制齒30於該第二容槽12內左右位移，該轉向組40係包括一轉向件41、一第一頂帽42、一第一彈性件43及一第二環體44；請輔以圖7所示，該轉向件41係設有一圓柱塊411，該圓柱塊411係樞設於該第三容槽13內，該圓柱塊411係設有一限制槽412，該限制槽412係對正該凹弧槽32，該限制槽412係呈圓槽狀，該圓柱塊411一端係設有三個第三抵部413，每一第三抵部413係朝向該制齒30，該轉向件41轉動時，至少其一該第三抵部413係抵於該第二抵部35上，該制齒30即受 限於該第三抵部413而樞設於該第二容槽12內而無法脫出該本體10外，該轉向件41係設有一撥鈕414，該撥鈕414係容設於該缺槽18內，該撥鈕414一側係靠抵於其一該第一抵面181處，轉動該轉向件41後，該撥鈕414另側係靠抵於另一該第一抵面181處，該圓柱塊411另側設有二第一凹槽415及一第二凹槽416，其一該第一凹槽415與該第四容槽14相對正，轉動該轉向組40而控制該制齒30位移至該第二容槽12之中間位置時，該第二凹槽416與該第四容槽14相對正，該第一凹槽415及該第二凹槽416與該限制槽412相遠離，該第二凹槽416設於該二第一凹槽415之間，該第一凹槽415呈弧面槽狀，該第二凹槽416係呈凹槽狀，該圓柱塊411另端設有一第二環槽417，該第二環槽417係與該第三抵部413相遠離，該第二環槽417係呈凹圓環槽狀；該第一頂帽42及該第一彈性件43相組設後而容設於該限制槽412內，該第一頂帽42一端部處係設有一頂抵部421，該第一頂帽42係受該第一彈性件43之彈力頂抵而使該頂抵部421頂抵於該第一面321處，該頂抵部421係受限於該第三面323而可避免旋出該凹弧槽32之範圍外，該第一頂帽42另端係設有一柱體422，該柱體422之外周面係靠抵於該第一抵部34處，即該第一抵部34係限制該第一頂帽42，該第一頂帽42係再限制該轉向件41，該轉向件41即樞設於該第三容槽13處，該柱體422係呈圓柱體狀，該頂抵部421與該柱體422之間係設有一第一錐面423，該第一錐面423係使該頂抵部421可具有較小之直徑，該頂抵部421即可配合該第一面321之弧面直徑；轉動該轉向件41時，該頂抵部421需越過該第二面322，該 第一頂帽42即會略壓縮該第一彈性件43，轉向時會有該第一彈性件43之彈性阻力；該第二環體44係容設於該第二環槽417處，該第二環體417係使該轉向件41與該第三容槽13之間係不具有間隙而呈密封狀，即具有防水功效；一蓋體50，該蓋體50係容設於該容蓋槽15處，該蓋體50係使該第一容槽11、該第二容槽12及該第三容槽13一端係呈封閉狀，該蓋體50係與該第一端面23略靠抵或二者之間具有一間隙，該第一環體28抵於該第一環槽24與該蓋體50之間，該第一環體28係使該本體10、該棘輪20及該蓋體50之間係不具有間隙而呈密封狀，該棘輪扳手結構即具防水功效，該蓋體50係設有一穿孔51，該穿孔51供該套合部22凸伸，該穿孔51係呈圓穿孔狀；一扣環60，該扣環60呈C形環體狀，該扣環60容設於該扣環槽17內並抵於該蓋體50上，該蓋體50即受限於該扣環60而無法脫出該容蓋槽15外；一第二頂帽70及一第二彈性件71，該第二頂帽70及該第二彈性件71相組設後而容設於該第四容槽14內，該第二頂帽70受該第二彈性件71之彈力頂抵而抵於其一該第一凹槽415處，該第二頂帽70具定位該轉向組40。 First, please refer to Figures 1 to 8. Figure 1 is a three-dimensional exploded view of the ratchet wrench structure of the present invention. Figure 2 is a bottom view of the ratchet wrench structure body 10 of the present invention. Figure 3 is a side view of the ratchet wrench structure body 10 of the present invention. Figure 4 is a perspective view of the ratchet wrench structure gear 30 of the present invention. Figure 5 is a top view of the ratchet wrench structure gear 30 of the present invention. Figure 6 is a perspective exploded view of the ratchet wrench structure steering group 40 of the present invention. Figure 7 is a perspective view of the ratchet wrench structure gear 30 of the present invention. A perspective view of the steering member 41 of the ratchet wrench structure of the present invention. Figure 8 is a top view of the first top cap 42 of the ratchet wrench structure of the present invention. The present invention relates to a ratchet wrench structure, which includes: a body 10. Please refer to Figure 2 As shown in Figure 3, one end of the body 10 is provided with a first receiving groove 11. The first receiving groove 11 is in the shape of a circular groove. One end of the first receiving groove 11 is open. The first receiving groove 11 has an open shape. A second receiving groove 12 with a smaller diameter is provided on the side. The center of the second receiving groove 12 is located within the range of the first receiving groove 11. The second receiving groove 12 and the first receiving groove 11 are in an orthogonal position. The second receiving groove 12 is connected at one end, and is provided with a first side surface 121 on both sides of the second receiving groove 12. The two first side surfaces 121 are opposite to the second receiving groove 12. Symmetrical, the first side surface 121 is in the shape of a straight surface, and the two sides of the second container 12 are each provided with a first arc surface 122. The first arc surface 122 connects the first side surface 121 and the first arc surface 122. The first container 11 and the second container 12 are provided with a third container 13 on one side. The third container 13 and the second container 12 are connected. Above the third container 13, The lower two ends are open, and the third container 13 is in the shape of a penetrating circular groove. A fourth container 14 is provided on one side of the third container 13, and the fourth container 14 is connected with the third container. The grooves 13 are connected, and the axis of the fourth groove 14 and the axis of the third groove 13 have an included angle. The fourth groove 14 is in the shape of a circular groove, and the body 10 is open near the upper part. A cover-containing slot 15 is provided, and the cover-containing slot 15 is located near the open end of the first containing slot 11, the second containing slot 12 and the third containing slot 13. The first containing slot 11 and the The other end of the second receptacle 12 is provided with a closed end 16. The body 10 is provided with a buckle groove 17. The cover groove 15 is provided between the first receptacle 11 and the buckle groove 17. The buckle ring groove 17 is in the shape of an annular groove. The body 10 is provided with a missing groove 18. The missing groove 18 is connected with the third receiving groove 13. The missing groove 18 is located at the same end as the closed end 16. At , the two sides of the defective groove 18 are each provided with a first contact surface 181. The first contact surface 181 is flat or arc-shaped, and a first angle 19 is provided between the two first side surfaces 121. The first angle 19 is bounded between 55 degrees and 65 degrees, and the first angle 19 is close to 60 degrees; a ratchet 20 is pivoted in the first receiving groove 11, and the outer periphery of the ratchet 20 is There is a ratchet part 21, the ratchet part 21 is annularly arranged with teeth, the ratchet 20 is provided with a fitting part 22, the fitting part 22 is protruding outside the first receiving groove 11, the fitting part 22 The cross-section is in the shape of a square head. One end of the ratchet wheel 20 is provided with a first end surface 23. The first end surface 23 is aligned with the cover groove 15. The first end surface 23 is provided with a first ring groove 24. The first annular groove 24 is provided between the ratchet part 21 and the fitting part 22. The first annular groove 24 is in the shape of a circular groove. A recess 25 is provided at the end of the ratchet 20, and the recess 25 is aligned The closed end 16 and the recess 25 reduce the friction area between the ratchet wheel 20 and the closed end 16 when it rotates in the first groove 11. The recess 25 is in the shape of a concave arc groove; a first ring body 28, The first ring body 28 is accommodated in the first ring groove 24. The first ring body 28 is in the shape of a torus. The first ring body 28 surrounds the fitting portion 22. The first ring body 28 is in the shape of a torus. Soft body; a tooth 30, please refer to Figure 4 and Figure 5. The tooth 30 is accommodated on one side of the second groove 12, and the tooth 30 can be controlled to move in the second groove 12. The gear tooth 30 is displaceable left and right within 12 seconds. The front side of the gear 30 is provided with an engaging portion 31. The engaging portion 31 is engaged with the ratchet portion 21. The diameter of the engaging portion 31 is a first diameter 311, and the first diameter 311 is abbreviated Larger than the diameter of the ratchet portion 21 , the two ends of the engaging portion 31 are each provided with a first tooth portion 312 and a second tooth portion 313 . Since the first diameter 311 is slightly larger than the diameter of the ratchet portion 21 , the teeth 30 When placed on the left or right side of the second receiving groove 12 , there is a gap between the first tooth portion 312 or the second tooth portion 313 and the ratchet portion 21 , and the gap goes from near the middle of the bite portion 31 to The first tooth portion 312 or the second tooth portion 313 is gradually enlarged; the rear side of the tooth 30 is provided with a concave arc groove 32, and the concave arc groove 32 includes two first surfaces 321 and a second surface 322. and two third surfaces 323. The two first surfaces 321 are each located at the two corners of the concave arc groove 32. The two first surfaces 321 are the two most concave parts of the concave arc groove 32. Each of the first surfaces 321 is located at the two corners of the concave arc groove 32. One side 321 is located between the second surface 322 and each third surface 323. The first surface 321 is in the shape of a concave arc surface with a single diameter. The second surface 322 is located in the concave arc groove 32. At the center, the second surface 322 is in the shape of a convex arc or any flange. The two first surfaces 321 are symmetrical with respect to the second surface 322. The two third surfaces 323 are located in the concave surface. The two ends of the arc groove 32 are near the opening, the two third surfaces 323 are symmetrical with respect to the second surface 322, and the third surface 323 is tangent to the first surface 321. The third surface 323 It is in the shape of a concave arc surface with a single diameter, and the diameter of the third surface 323 is larger than the diameter of the first surface 321; the concave arc groove 32 is provided with a protrusion 33 near the closed end 16, and the protrusion 33 is connected with the concave arc groove 32. A first resisting portion 34 is provided between the arc grooves 32. The first resisting portion 34 is planar. The gear 30 is provided with a second resisting portion 35. The second resisting portion 35 is aligned with the second receiving groove. 12, the concave arc groove 32 is disposed between the first resisting portion 34 and the second resisting portion 35. The second resisting portion 35 is flat, and the two sides of the gear 30 are each provided with a Second side surfaces 36. When the tooth 30 is received on the left or right side of the second receiving groove 12, one of the second side surfaces 36 is in contact with the first side surface 121, and the other of the second side surfaces 36 is in contact with the first side surface 121. The two side surfaces 36 are far away from the other first side surface 121, and the second side surface 36 is in the shape of a convex arc; the first side surface 121 is in the shape of a plane, and the second side surface 36 is in the shape of a plane.

36 is in the shape of a convex arc surface. When the second side surface 36 abuts the first side surface 121, the contact point between the two is a line segment, so that the gear making system 30 can use the line segment as its axis. Rotate, the bite portion 31 is more easily meshed with the ratchet portion 21; a steering group 40, please refer to Figure 6, the steering group 40 is pivoted in the third receiving groove 13, the steering group 40 is To rotate and control the left and right displacement of the gear 30 in the second groove 12, the steering group 40 includes a steering member 41, a first top cap 42, a first elastic member 43 and a second ring body 44; Please refer to FIG. 7 . The steering member 41 is provided with a cylindrical block 411 . The cylindrical block 411 is pivoted in the third receiving groove 13 . The cylindrical block 411 is provided with a limiting groove 412 . The limiting groove 412 The concave arc groove 32 is aligned. The limiting groove 412 is in the shape of a circular groove. One end of the cylindrical block 411 is provided with three third resisting portions 413. Each third resisting portion 413 faces the gear making 30. The turning When the member 41 rotates, at least one of the third resisting portions 413 is pressed against the second resisting portion 35 , and the gear 30 is restricted by the third resisting portion 413 and is pivoted in the second receiving groove 12 And cannot come out of the body 10, the steering member 41 is provided with a button 414, the button 414 is disposed in the slot 18, one side of the button 414 is against one of the first resistors. At the surface 181, after the steering member 41 is rotated, the other side of the button 414 is abutted against the other first contact surface 181. The other side of the cylindrical block 411 is provided with two first grooves 415 and a second groove. Groove 416, one of the first grooves 415 is opposite to the fourth groove 14. When the steering group 40 is rotated to control the displacement of the gear 30 to the middle position of the second groove 12, the second groove 416 is opposite to the fourth receiving groove 14, the first groove 415 and the second groove 416 are far away from the restricting groove 412, and the second groove 416 is provided between the two first grooves 415. The first groove 415 is in the shape of an arc groove, and the second groove 416 is in the shape of a groove. The other end of the cylindrical block 411 is provided with a second annular groove 417, and the second annular groove 417 is connected with the third abutment. The second annular groove 417 is in the shape of a concave annular groove; the first top cap 42 and the first elastic member 43 are assembled and accommodated in the restriction groove 412. A resisting portion 421 is provided at one end of the cap 42. The first top cap 42 is resisted by the elastic force of the first elastic member 43 so that the resisting portion 421 abuts the first surface 321. The resisting portion 421 is limited by the third surface 323 and can avoid rotating out of the range of the concave arc groove 32. The other end of the first top cap 42 is provided with a cylinder 422, and the outer peripheral surface of the cylinder 422 is abutted against the concave arc groove 32. Abutting the first resisting portion 34, that is, the first resisting portion 34 restricts the first top cap 42, and the first top cap 42 further restricts the steering member 41. The steering member 41 is pivoted on the third At the three receiving slots 13, the cylinder 422 is in the shape of a cylinder, and a first cone surface 423 is provided between the abutment portion 421 and the cylinder 422. The first cone surface 423 makes the abutment portion 421 It can have a smaller diameter, and the resisting portion 421 can match the arc diameter of the first surface 321; when the steering member 41 is rotated, the resisting portion 421 needs to cross the second surface 322, and the first top cap 42 will slightly compress the first elastic member 43, and there will be elastic resistance of the first elastic member 43 when turning; the second ring body 44 is accommodated in the second ring groove 417, and the second ring body 417 This is to ensure that there is no gap between the steering member 41 and the third receiving groove 13 and is in a sealed state, that is, it has a waterproof effect; a cover body 50 is accommodated in the cover receiving groove 15, and the The cover 50 makes one end of the first receptacle 11 , the second receptacle 12 and the third receptacle 13 closed, and the cover 50 is slightly abutted against the first end surface 23 or between them. There is a gap, and the first ring body 28 is between the first ring groove 24 and the cover body 50. The first ring body 28 makes the body 10, the ratchet wheel 20 and the cover body 50 inseparable. With a gap and a sealing shape, the ratchet wrench structure is waterproof. The cover 50 is provided with a through hole 51 for the fitting part 22 to protrude. The through hole 51 is in the shape of a circular hole; a buckle 60. The buckle 60 is in the shape of a C-shaped ring. The buckle 60 is accommodated in the buckle groove 17 and is pressed against the cover 50. The cover 50 is restricted by the buckle 60 and cannot be removed. Out of the cover groove 15; a second top cap 70 and a second elastic member 71, the second top cap 70 and the second elastic member 71 are assembled and accommodated in the fourth groove 14 , the second top cap 70 is pushed against one of the first grooves 415 by the elastic force of the second elastic member 71 , and the second top cap 70 positions the steering group 40 .

Please refer to Figures 9 and 10. Figure 9 is an assembled perspective view of the ratchet wrench structure of the present invention. Figure 10 is a perspective view of the ratchet wrench structure of the present invention from another perspective. It can be clearly shown from the illustrations that the body 10, the The ratchet 20, the first ring body 28, the gear 30, the steering group 40, and the cover After the body 50, the buckle 60, the second top cap 70 and the second elastic member 71 are assembled, as shown in Figures 9 and 10, the ratchet 20 is pivoted in the first groove 11, and the The gear 30 is accommodated on one side of the second receptacle 12, the steering group 40 is pivoted at the third receptacle 13, and the button 414 is accommodated at the missing slot 18 for manual manipulation to rotate the steering. The assembly 40 controls the left and right displacement of the gear 30 in the second groove 12 and controls the forward and reverse rotation of the ratchet wrench. The cover 50 is disposed at the cover groove 15, and the buckle 60 is It is provided in the buckle groove 17 and abuts against the cover 50 to restrict the cover 50 from being separated from the main body 10 .

Please refer to Figures 11 to 14. Figure 11 is a side view of the ratchet wrench structure of the present invention. Figure 12 is a cross-sectional view of the A-A position of Figure 11 of the present invention. Figure 13 is an enlarged view of the B position of Figure 12 of the present invention. From As can be clearly shown in the figure, since the first diameter 311 is larger than the outer diameter of the ratchet portion 21 , there is a slight gap between the first tooth portion 312 and the ratchet portion 21 without complete engagement, as shown in Figure 13 As shown, one of the second side surfaces 36 abuts against one of the first side surfaces 121 , the steering group 40 is pivoted in the third receiving groove 13 , and the first top cap 42 is supported by the first elastic member 43 The elastic force resists the concave arc groove 32, and the resisting portion 421 is accommodated at the first surface 321. The resisting portion 421 is limited by the third surface 323 and can avoid rotating out of the concave arc. Outside the range of the groove 32, the first top cap 42 abuts the first resisting portion 34, the second top cap 70 and the second elastic member 71 are accommodated in the fourth receiving groove 14, and the second top cap 42 is located outside the range of the groove 32. The top cap 70 is pressed against one of the second grooves 416 by the elastic force of the second elastic member 71 .

Please continue to refer to Figure 14. Figure 14 is a three-dimensional assembly view of some components of the ratchet wrench structure of the present invention. It can be clearly shown from the figure that the steering group 40 is rotated so that the gear 30 is accommodated in the second volume. At the center of the groove 12, the third abutment portion 413 in the middle of the steering member 41 abuts the second abutment portion 35 and the first top cap 42 abuts the first abutment portion 34. The steering member 41 i.e. pivot At the third receiving groove 13 , the second top cap 70 is resisted by the second elastic member 71 and abuts against the first groove 415 .

In another embodiment of the present invention, the fitting portion 22 is not in the shape of a protruding square head, but is in the shape of a penetrating polygonal groove, such as a dodecagonal groove, and the fitting portion 22 directly fits the screw fitting. And swirling.

The advantages of the ratchet wrench structure of the present invention are:

1. As shown in Figure 14, at least one third resisting portion 413 of the steering member 41 abuts on the second resisting portion 35, and the first top cap 42 abuts on the first resisting portion 34. , the gear 30 restricts the third resisting portion 413 and the first top cap 42 , the first top cap 42 is received in the restricting groove 412 , and the steering group 40 is pivoted in the third receiving groove 13 There are two limiting structures between the steering group 40 and the gear 30. When the ratchet wrench collides, the probability of the steering member 41 disengaging from the third receiving groove 13 is greatly reduced.

2. As shown in Figure 12, the first top cap 42 is resisted by the elastic force of the first elastic member 43 and abuts the concave arc groove 32, and the resisting portion 421 is accommodated in the concave arc groove 32. At the first surface 321, when the steering member 41 is rotated, the resisting portion 421 will automatically enter the first surface 321 to have an automatic positioning function.

3. The peripheral surface of the first top cap 42 abuts the first surface 321, the third surface 323 and the first resisting portion 34, and the first top cap 42 is limited by the first surface 321 and the first resisting portion 34. The third surface 323 can prevent the first top cap 42 from rotating out of the range of the concave arc groove 32, and the third surface 323 can limit the maximum rotation angle of the steering member 41.

4. As shown in Figure 14, please rotate the steering group 40 so that the gear 30 is accommodated in the center of the second groove 12, and the abutting portion 421 abuts against the second surface 322. , the first elastic member 43 is subject to Compression, that is, the steering member 41 needs to be rotated, the first elastic member 43 will be compressed, the steering member 41 will not easily rotate automatically, and the automatic switching sequence between the steering group 40 and the gear 30 will be less likely to occur. Reversal.

5. The resisting portion 421 can have a smaller diameter. The resisting portion 421 can match the arc diameter of the first surface 321, that is, the arc diameter of the first surface 321 can be set smaller. The gear teeth 30 of smaller size may also have a structure of two first surfaces 321 , one second surface 322 and two third surfaces 323 .

6. As shown in Figure 13, the gear 30 is accommodated on one side of the second groove 12, and the engaging portion 31 is engaged with the ratchet portion 21. However, since the first diameter 311 is larger than The diameter of the ratchet part 21 means that there is a slight gap between the first tooth part 312 and the ratchet part 21 without complete engagement, which can avoid the ratchet part 21 and the ratchet part 21 being meshed with each other when the gear teeth 30 are meshed with the ratchet wheel 20 The engaging portion 31 is fully engaged and not easy to rotate.

7. The first side surface 121 is in a planar shape, the second side surface 36 is in a convex arc shape, and the second side surface 26 is in contact with the first side surface 121 when the second side surface 26 is in contact with the first side surface 121. The position is in the shape of a line segment, so that the gear 30 can rotate slightly about the line segment as the axis, and the engaging portion 31 is more easily meshed with the ratchet portion 21 .

8. One end of the ratchet wheel 20 is provided with the recess 25. The recess 25 enables the ratchet wheel 20 to reduce the friction area between the end surface of the ratchet wheel 20 and the closed end 16 of the body 10 when the ratchet wheel 20 rotates in the first receiving groove 11.

9. As shown in Figure 4, the tooth 30 is provided with the protrusion 33. The protrusion 33 is equivalent to a rib in the structure. When the tooth 30 is stressed, it can withstand more torsion. The tooth 30 Regardless of whether it is demoulded up and down or demolded front and back, the gear 30 can be powder molded or injection molded. The gear 30 can have at least two kinds of components. type way.

10. The second top cap 70 is also elastically resisted by the second elastic member 71 and abuts against one of the first grooves 415 to position the steering group 40. The second top cap 70 needs to pass over the second top cap 70. Groove 416 for safety.

Therefore, the ratchet wrench structure of the present invention has industrial applicability, novelty and progressiveness, and can sincerely meet the application requirements for an invention patent, and the application can be filed in accordance with the law.

10:Ontology

11: First slot

12:Second slot

121:First side

122: First arc surface

13:Third slot

14:Fourth slot

15: Cover slot

16: closed end

17:Buckle groove

20:ratchet

21: Ratchet part

22: Fitting Department

23: First end face

24: First ring groove

25: concave part

28:The first ring body

30: Gear making

40: Steering group

50: Cover

51:Perforation

60:Buckle

70:Second hat

71: Second elastic member

Claims (14)

A ratchet wrench structure, which includes: a body, one end of the body is provided with a first receiving groove, the first receiving groove is in the shape of a circular groove, one end of the first receiving groove is in an open shape, the first receiving groove is A second container with a smaller diameter is provided on one side. The center of the circle of the second container is located within the scope of the first container. The second container and the first container are connected. The second container is connected with the first container. One end of the second container is open, and two sides of the second container are each provided with a first side surface. The two first side surfaces are symmetrical to the second container, and the first side surface is It is in the shape of a flat surface. A third container is provided on one side of the second container. The third container is connected with the second container. The upper and lower ends of the third container are open. shape, the third receiving groove is in the shape of a penetrating circular groove, and a cover groove is provided at the open position near the top of the body, and the cover groove is provided in the first receiving groove, the second receiving groove and the third receiving groove. The receptacle is close to the open end, and the other ends of the first receptacle and the second receptacle are provided with a closed end. The system is provided with a buckle groove, and the cover groove is located between the first receptacle and the second receptacle. Between the buckle grooves, the buckle groove is in the shape of an annular groove. The body is provided with a missing groove. The missing groove is connected with the third receiving groove. The missing groove is located at the same end as the closed end. Each side of the missing groove is provided with a first contact surface; a ratchet wheel, the ratchet wheel is pivoted in the first groove, the outer periphery of the ratchet wheel is provided with a ratchet portion, the ratchet portion has teeth arranged in an annular shape In the shape of The front side is provided with a bite portion, the bite portion is meshed with the ratchet portion, and the diameter of the bite portion is a first diameter; the rear side of the gear is provided with a concave arc groove, and the concave arc groove includes two second diameters. One side, a second side and two third sides. The two first sides are each located at the two corners of the concave arc groove. The two first sides are The two most concave parts of the concave arc groove, each first surface is located between the second surface and each third surface, and the second surface is located at the center of the concave arc groove. The two first surfaces are symmetrical with respect to the second surface, the two third surfaces are located at the two ends of the concave arc groove near the opening, and the two third surfaces are symmetrical with respect to the first surface; the two third surfaces are symmetrical with respect to the first surface; A convex block is protruding from the concave arc groove near the closed end. A first abutment portion is provided between the convex block and the concave arc groove. The first abutment portion is planar, and the gear system is provided with a first abutment portion. Two abutment parts, the second abutment part is aligned with the open end of the second receiving groove, the concave arc groove is provided between the first abutment part and the second abutment part, the second abutment part is planar , the two sides of the tooth are each provided with a second side surface. When the tooth is placed on the left or right side of the second accommodation groove, one of the second side surfaces is in contact with one of the first side surfaces. , the other second side surface is far away from the other first side surface, and the second side surface is in the shape of a convex arc; the first side surface is in the shape of a plane, and the second side surface is in the shape of a convex arc. surface shape, when the second side surface abuts the first side surface, the contact point between the two forms a line segment, so that the tooth system can rotate slightly around the line segment as the axis, and the bite system is easier to connect with the first side surface. The ratchet part is engaged with; a steering group, the steering group is pivoted in the third groove, the steering group rotates to control the left and right displacement of the gear in the second groove, the steering group includes a The steering member, a first top cap and a first elastic member; the steering member is provided with a cylindrical block, the cylindrical block is pivoted in the third receiving groove, the cylindrical block is provided with a limiting groove, the limiting groove The concave arc groove is aligned with the limiting groove. The limiting groove is in the shape of a circular groove. One end of the cylindrical block is provided with three third resisting portions. Each third resisting portion faces the gear making. When the steering member rotates, at least its Once the third resisting part is pressed against the second resisting part, the gear is restricted by the third resisting part and is pivoted in the second groove and cannot come out of the body. The steering member is There is a batch The button is located in the slot. One side of the button is abutted against one of the first contact surfaces. After the steering member is rotated, the other side of the button is abutted against the other first contact surface. At the first abutment surface; the first top cap and the first elastic member are assembled and accommodated in the restriction groove, and an abutment portion is provided at one end of the first top cap. It is resisted by the elastic force of the first elastic member so that the resisting part abuts the first surface. The resisting part is limited by the third surface and can avoid rotating out of the range of the concave arc groove. , the other end of the first top cap is provided with a cylinder, and the outer circumferential surface of the cylinder is abutted against the first abutment portion, that is, the first abutment portion limits the first top cap, and the first top cap The steering member is then restricted, and the steering member is pivoted at the third receiving groove. The column system is cylindrical, and a first tapered surface is disposed between the abutment portion and the column. The tapered surface allows the abutting portion to have a smaller diameter, and the abutting portion can match the arc diameter of the first surface; a cover body, the cover system is accommodated in the cover-containing groove, and the cover system One end of the first receptacle, the second receptacle and the third receptacle is closed; a buckle is in the shape of a C-shaped ring, and the buckle is accommodated in the buckle groove and When pressed against the cover, the cover is restricted by the buckle and cannot come out of the cover groove. The ratchet wrench structure of claim 1, wherein a first arc surface is provided on both sides of the second groove, and the first arc surface connects the first side surface and the first groove, and the first arc surface is connected to the first side surface and the first groove. The first contact surface is flat or curved. The ratchet wrench structure according to claim 1, wherein a fourth receiving groove is provided on one side of the third receiving groove, and the fourth receiving groove is connected with the third receiving groove, and the fourth receiving groove is connected to the third receiving groove. The axis center and the axis center of the third receptacle have an included angle, and the fourth receptacle is in the shape of a circular groove; the other side of the cylindrical block is provided with two first grooves and a second groove, one of which is a circular groove. The first groove is opposite to the fourth groove, and the steering group is rotated to control the displacement of the gear to the second groove. In the intermediate position, the second groove is opposite to the fourth groove, the first groove and the second groove are far away from the restriction groove, and the second groove is located between the two first grooves. Between the grooves: there is a second top cap and a second elastic member. The second top cap and the second elastic member are assembled and accommodated in the fourth groove. The second top cap is supported by The elastic force of the second elastic member abuts against one of the first grooves, and the second top hat positions the steering group. The ratchet wrench structure of claim 1, wherein a first angle is set between the two first side surfaces, and the first angle is between 55 degrees and 65 degrees, or the first angle is close to 60 degrees. The ratchet wrench structure as described in claim 1, wherein the fitting portion protrudes outside the first groove, and the cross-section of the fitting portion is in the shape of a square head, or the fitting portion is in the shape of a penetrating polygon. Trough-shaped. The ratchet wrench structure according to claim 1, wherein one end of the ratchet is provided with a first end face, the first end face is aligned with the cover groove, the first end face is provided with a first annular groove, and the first end face is An annular groove is provided between the ratchet part and the fitting part, and the first annular groove is in the shape of an annular groove; a first annular body is provided, and the first annular body is accommodated in the first annular groove, The first ring body is in the shape of a torus, the first ring body surrounds the fitting part, and the first ring body is a soft body; the first ring body is pressed between the first ring groove and the cover body , the first ring system ensures that there is no gap between the body, the ratchet and the cover and is in a sealed state, and the ratchet wrench structure is waterproof. The ratchet wrench structure of claim 1, wherein the end of the ratchet is provided with a recess, the recess aligns with the closed end, and the recess allows the ratchet to be in contact with the closed end when rotating in the first groove. The intervening system reduces the friction area, and the recess is in the shape of a concave arc groove. The ratchet wrench structure as claimed in claim 1, wherein the first diameter is slightly larger than the diameter of the ratchet part, and the two ends of the bite part are each provided with a first tooth part and a second tooth part. Since the third tooth part A diameter is slightly larger than the diameter of the ratchet part. When the tooth is accommodated on the left or right side of the second receiving groove, there is a gap between the first tooth part or the second tooth part and the ratchet part. The gap gradually increases from the middle of the bite portion to the first tooth portion or the second tooth portion. The ratchet wrench structure according to claim 1, wherein the first surface is in the shape of a concave arc surface with a single diameter, the second surface is in the shape of a convex arc surface or any flange, and the third surface is in the shape of a concave arc surface with a single diameter. The first surface is in a tangent shape, the third surface is in a concave arc shape with a single diameter, and the diameter of the third surface is larger than the diameter of the first surface. The ratchet wrench structure as claimed in claim 3, wherein the first groove is in the shape of an arc groove, and the second groove is in the shape of a groove. The ratchet wrench structure of claim 1, wherein when the steering member is rotated, the resisting portion needs to cross the second surface, the first top cap will slightly compress the first elastic member, and the first elastic member will be slightly compressed when the steering member is rotated. The elastic resistance of the first elastic member. The ratchet wrench structure according to claim 1, wherein the other end of the cylindrical block is provided with a second annular groove, the second annular groove is away from the third butt portion, and the second annular groove is concave. Ring groove shape; the steering group is provided with a second ring body, and the second ring body is accommodated in the second ring groove. The second ring system ensures that there is no gap between the steering member and the third receiving groove. And in a sealed form. The ratchet wrench structure as claimed in claim 6, wherein the cover system slightly abuts the first end surface or there is a gap between them. The ratchet wrench structure as claimed in claim 1, wherein the cover system is provided with a perforation for the fitting portion to protrude, and the perforation is in the shape of a circular perforation.

Images