TWI404600B - Rachet wrench - Google Patents

Abstract

A ratchet wrench includes a main body provided with a driving gear and a driven gear and having a receiving groove disposed with ratchet teeth on the inner wall. The driving gear is ball-shaped and has the outer wall of each gear tooth forming an arc-shaped surface, and a concave surface is formed between every two gear teeth of the driven gear to match the arc-shaped surface of the gear teeth of the driving gear. Each gear tooth of the driven gear is provided with plural ratchet teeth to be engaged with the ratchet teeth of the receiving groove. An interaction member is received inside the driven gear, having one end connected with an orientating member and another end positioned on a cover plate. A pressing piece is fixed on the interactive member and a spring is positioned between the pressing piece and the interactive member.

Description

Ratchet wrench (2)

The invention relates to a ratchet wrench (2), in particular to a switchable by means of a toggle member, which can easily change the rotation direction of the driving wheel, can achieve the best card braking effect, and the sleeve of the driving wheel The post can adjust the angle before and after, and can adjust the force angle of the tool according to different space constraints during work. It is very convenient to use and has great stability during transmission.

Pressing, generally for the locking and dismounting of different types of bolts or nuts, most of them are used with ratchet wrenches and different sleeves. For the general ratchet wrench 1, please refer to the first figure, the main system The ejector body 10 is provided with a receiving slot 100 and a receiving slot 101. The receiving slot 100 is provided with a through hole 102. The receiving slot 101 is provided with a control handle hole 103. A recessed hole 104 is defined in the wall of the slot body 101. A driving wheel 11 is disposed in the receiving slot 100 of the wrench body 10. An adjusting block 12 is disposed in the receiving slot 101 of the wrench body 10, and the active The gear teeth 110 of the wheel 11 are in mesh with the teeth 120 of the adjusting block 12, the driving wheel 11 is provided with a sleeve column 111, and the middle portion of the other side of the adjusting block 12 is provided with a convex body 121. A concave arc surface 122 is formed on both sides of the convex body 121, and a positioning steel ball 13 and a spring 14 are disposed in the recessed hole 104 of the wrench body 10. The positioning steel ball 13 is disposed on one of the concave blocks of the adjusting block 12. On the curved surface 122, a control handle 15 is disposed on the outer side of the wrench body 10 The control handle 15 is connected to the adjusting block 12 by a shaft 16 , and a blocking piece 17 is disposed on the wrench body 10 , and the blocking piece 17 is fixed to the wrench by the screwing component 18 . On the body 10, the blocking piece 17 is provided with a sleeve hole 170 through which the sleeve column 111 of the driving wheel 11 is disposed, and a shaft hole 171 through which the shaft 16 is threaded. Thus, the control lever 15 is toggled. To rotate the adjustment block 12, one end of the adjusting block 12 is transferred to a side wall surface of the receiving groove 101 of the wrench body 10, and the braking force of the adjusting block 12 is used to reach the single of the driving wheel 11 To the transmission, the driving wheel 11 of the ratchet wrench 1 and the tooth 120 of the adjusting block 12 are in point or line contact when meshing, and cannot be stably meshed and transmitted, so that there is a situation in which the jumping teeth and the transmission are inaccurate. And the braking of the driving wheel 11 by the adjusting block 12 is only abutted against the wall surface of the adjusting block 12 and the wall surface of the receiving groove 101, but the wall surface thereof is a smooth surface, and the frictional force is small, so the jam effect is achieved. Poor, easy to slip off phenomenon, can not really achieve the effect of the card brake, in addition, the general ratchet wrench only has The rotation function of the switch to the two-way direction, the holding position of the sleeve column 111 and the wrench body 10 is a vertical angle, and the force angle of the sleeve column 111 cannot be adjusted according to different space constraints during operation, resulting in operation. It is inconvenient; therefore, the present inventors have invented the present invention in view of the fact that the conventional ratchet wrench has the above-mentioned disadvantages as described above.

The main object of the present invention is to provide a ratchet wrench, which can stably switch the rotation direction of the driving wheel, and can achieve the best card braking effect, and the sleeve of the driving wheel can adjust the angle before and after, and can be matched. Different working space restrictions to adjust the angle of force of the tool, it is very convenient to use, and the transmission is extremely stable.

The ratchet wrench of the present invention is mainly provided with a wrench body, and the working of the wrench body a recessed surface is disposed on one side of the end, and the recessed surface is provided with a receiving slot and a receiving slot, wherein the receiving slot is in communication with the receiving slot, and the other side of the working end is provided with a through slot The through hole is provided with a dialing member on the outer side of the wrench body; a driving wheel is disposed in the receiving groove of the wrench body, the driving wheel is provided with gear teeth, and the driving wheel is provided with a sleeve connecting rod a driven wheel is disposed in the receiving groove of the wrench body, and the driven wheel is provided with gear teeth, and the gear teeth of the driven wheel mesh with the teeth of the driving wheel; a through hole for the sleeve of the driving wheel is disposed on the concave surface of the wrench body; and the utility model is characterized in that: the inner wall surface of the receiving groove of the wrench body is provided with ratchet teeth. The driving wheel system is formed as a spherical body, and the outer wall surface of each tooth of the driving wheel is a circular arc surface, and the arc surface of the gear wheel of the driving wheel is matched with the circular arc surface of the driving wheel. a curved surface, each of the teeth of the driven wheel is provided with a ratchet tooth, and the ratchet on the driven wheel can be connected with the inner wall surface of the bearing groove of the wrench body The teeth are mutually engaged, and the driven wheel is provided with a through hole. The driven wheel is provided with a linking member. The one end of the connecting member is connected with the sliding member disposed outside the wrench body, and the other end of the connecting member is connected. Positioning on the cover plate, the linking member is provided with a through hole, a top holding block is disposed on the linking member, and is disposed in the through hole of the driven wheel, and the top holding block is provided with a through hole a spring in the perforation of the linking member, a spring sleeve is sleeved on the protruding post of the top block, and the spring is located between the top block and the linking member.

The ratchet wrench of the present invention, wherein the other side of the working end of the wrench body is provided with a groove corresponding to the receiving groove, and a plurality of perforations communicating with the groove are provided on the concave surface of the wrench body. One side of the connecting member is provided with a positioning protrusion, and the other side is provided with a positioning protrusion, and a blocking piece is disposed in the groove of the wrench body. a through hole for the positioning protrusion of the linking member is disposed on the sheet, and the threaded hole is disposed on the groove corresponding to the hole in the groove of the wrench body, and the dialing member is disposed on the outer side of the blocking piece The dialing member is provided with a through hole, and the through hole is provided with a fixing component, and the fixing component is connected to the positioning protrusion of the linking component, and the cover plate is provided with one for the linking component The positioning locating pin of the side is disposed through the positioning hole of the setting position, and the through hole corresponding to the concave surface of the wrench body is provided with a through hole, and the screwing component is inserted through the through hole of the cover plate and the wrench body, and The screw is disposed in the screw hole of the flap.

1‧‧‧ Ratchet Wrench

10‧‧‧Wrench body

100‧‧‧ accommodating slots

101‧‧‧ socket

102‧‧‧through hole

103‧‧‧Control handle hole

104‧‧‧ recessed hole

11‧‧‧Drive wheel

110‧‧‧ teeth

111‧‧‧Sleeve column

12‧‧‧Adjustment block

120‧‧‧ teeth

121‧‧‧ convex

122‧‧‧ concave curved surface

13‧‧‧ Positioning steel balls

14‧‧‧ Spring

15‧‧‧Control handle

16‧‧‧ shaft

17‧‧‧Block

170‧‧‧Sleeve hole

171‧‧‧ shaft hole

18‧‧‧ Screw components

2‧‧‧Wrench body

20‧‧‧Working end

21‧‧‧ concave

210‧‧‧Perforation

22‧‧‧ accommodating slots

220‧‧‧through hole

23‧‧‧Support slot

230‧‧‧ Groove

231‧‧‧ ratchet

3‧‧‧Drive wheel

30‧‧‧ teeth

31‧‧‧Arc face

32‧‧‧Sleeve Posts

4‧‧‧ driven wheel

40‧‧‧ teeth

41‧‧‧ concave curved surface

42‧‧‧ ratchet

43‧‧‧Perforation

44‧‧‧ linkages

440‧‧‧Perforation

441‧‧‧ positioning convex

442‧‧‧ positioning stud

45‧‧‧Top block

450‧‧‧Bump

46‧‧‧ Spring

5‧‧‧Block

50‧‧‧through hole

51‧‧‧ screw holes

52‧‧‧WD parts

520‧‧‧Perforation

53‧‧‧Fixed components

6‧‧‧ Cover

60‧‧‧through hole

61‧‧‧ Positioning perforation

62‧‧‧Perforation

63‧‧‧ Screw components

The first figure shows an exploded perspective view of a conventional ratchet wrench.

The second figure is a perspective exploded view of an embodiment of the present invention.

The third figure is a three-dimensional combination diagram of an embodiment of the present invention.

The fourth figure is a perspective assembled view of another angle of the embodiment of the present invention.

The fifth figure shows a schematic diagram of switching the driving direction of the driving wheel of the driving wheel according to the embodiment of the present invention.

The sixth figure is a schematic diagram showing the idling state of the embodiment of the present invention.

The seventh figure shows a schematic diagram of the locking of the other steering of the driving wheel in the embodiment of the present invention.

The eighth figure is a schematic view showing the use of the sleeve rotation of the driving wheel of the embodiment of the present invention.

The ninth figure shows the use of the sleeve of the driving wheel to be rotated backwards according to the embodiment of the invention. schematic diagram.

For the purpose of the present invention, the preferred embodiments of the invention are as follows:

For the embodiment of the present invention, as shown in the second to fifth embodiments, a wrench body 2 is mainly provided. A working surface 20 of the wrench body 2 is provided with a concave surface 21 on one side of the working end 20, and a concave groove is formed in the concave surface 21. 22 and a receiving slot 23, the receiving slot 22 is in communication with the receiving slot 23, and the other side of the working end 20 is provided with a through hole 220 extending through the receiving slot 22, the working end 20 A groove 230 is disposed on the other side corresponding to the receiving groove 23, and a plurality of perforations 210 are connected to the concave surface 21 to communicate with the groove 230. The inner wall surface of the receiving groove 23 is opposite to the two sides. A plurality of ratchet teeth 231 are provided. A driving wheel 3 is disposed in the receiving groove 22 of the wrench body 2. The driving wheel 3 is formed as a spherical body, and the outer wall surface of each of the gear teeth 30 of the driving wheel 3 is The driving wheel 3 is provided with a sleeve post 32; a driven wheel 4 is disposed in the receiving groove 23 of the wrench body 2, and the gear teeth 40 of the driven wheel 4 are The teeth 30 of the driving wheel 3 are engaged with each other. The arc surface 31 of the gear teeth 30 of the driving wheel 4 is matched with the circular arc surface 31 of the gear teeth 30 of the driving wheel 3, and the gear teeth 40 are provided on each of the gear teeth 40. With several The ratchet 42 is provided with a through hole 43. A linking member 44 is disposed in the through hole 43. The linking member 44 is provided with a through hole 440. One side of the linking member 44 is provided with a positioning protrusion 441. The other side is provided with a positioning protrusion 442. A top holding block 45 is disposed on the linking member 44 and is disposed in the through hole 43 of the driven wheel 4. The holding block 45 is provided with a protrusion 450 and a spring. The 46 series sleeve is disposed on the protruding post 450 and located between the top holding block 45 and the linking member 44. A blocking piece 5 is disposed on the recess 230 of the wrench body 2, and the blocking piece 5 is disposed There is a through hole 50, the block A screw hole 51 is disposed on the sheet 5 corresponding to the through hole 210 of the recess body 230 of the wrench body 2. The outer side of the flap 5 is provided with a dialing member 52, and the dialing member 52 is provided with a through hole 520. A fixing member 53 is disposed in the through hole 520. The fixing member 53 is connected to the positioning protrusion 441 on one side of the linking member 44. A cover plate 6 is disposed on the concave surface 21 of the wrench body 2. The cover plate 6 is provided with a through hole 60. The cover plate 6 is further provided with a positioning through hole 61 for the positioning protrusion 442 of the linking member 44. The cover plate 6 corresponds to the wrench body 2. The perforation 210 on the concave surface 21 is provided with a through hole 62, and the through hole 62 is provided with a screwing member 63, which is a structure of a ratchet wrench.

When assembling, please refer to the second to fifth figures. First, the positioning protrusion 441 on one side of the linking member 44 is inserted into the through hole 50 of the blocking piece 5, and the sliding member 52 is fixed by the fixing member 53. The slidable member 52 is disposed on the outer side of the blocking member 5, and the blocking member 5 is disposed on the recess 230 of the wrench body 2, and the spring 46 is further disposed. The protrusion 450 is disposed in the through hole 440 of the linking member 44, and the linking member 44 and the holding block 45 are disposed on the wrench body 2 together with the spring 46. In the receiving groove 23, the driven wheel 4 is placed in the receiving groove 23 of the wrench body 2, and the linking member 44, the holding block 45 and the spring 46 are placed together in the through hole 43 of the driven wheel 4. The driving wheel 3 is placed in the receiving groove 22 of the wrench body 2, so that the gear teeth 30 of the driving wheel 3 and the gear teeth 40 of the driven wheel 4 are engaged with each other, and the screw holes 51 of the blocking piece 5 are opposite. The cover plate 6 is disposed on the concave surface 21 of the wrench body 2, and the sleeve post 32 disposed in the receiving groove 22 of the wrench body 2 extends through the cover. a through hole 60 of the plate 6, and the driven wheel 4 The positioning protrusion 442 of the linking member 44 in the hole 43 is inserted into the positioning through hole 61 of the cover plate 6, and the screwing member 63 is inserted into the through hole 62 of the cover plate 6 and the through hole 210 of the wrench body 2. And screwed to the snail of the flap 5 In the hole 51, the driving wheel 3 and the driven wheel 4 and their internal components are fixed in the receiving groove 22 and the receiving groove 23 of the wrench body 2, so that the overall assembly can be completed.

When using, please refer to the fourth to the ninth figure, the toggle member 52 is switched in the direction in which the wrench body 2 is to be rotated. When the wrench body 2 is to be rotated clockwise, the dial member 52 only needs to be clockwise. Pulling to the direction in which the wrench body 2 is to be rotated (as shown in the fourth and fifth figures), the dialing member 52 drives the linking member 44 to rotate, and the linking member 44 drives the through-piece block 45 to the through hole 43 of the driven wheel 4. In the inner rotation, the top holding block 45 is pushed by the elastic force of the spring 46, and drives the driven wheel 4 to be displaced in the receiving groove 23 of the wrench body 2. by the elastic pushing of the spring 46, the driven wheel 4 moves upward and Abutting against the inner wall surface of the upper portion of the receiving groove 23 of the wrench body 2 (as shown in FIG. 5), the ratchet teeth 42 on the teeth 40 of the driven wheel 4 and the ratchet teeth 231 on the upper inner wall surface of the receiving groove 23 The two sides of the receiving groove 23 form a space, and when the wrench body 2 is rotated clockwise, the teeth 30 of the driving wheel 3 push the teeth 40 of the driven wheel 4 in the opposite direction. The moving wheel 4 rotates clockwise in the same direction as the rotating direction of the wrench body 2 (as shown in FIG. 5), and the ratchet teeth 42 on the driven wheel 4 are tightly held in the bearing. The ratchet teeth 231 on the groove 23 form a latching braking state, so that the driving wheel 3 cannot be rotated, and the sleeve tool (not shown) sleeved on the sleeve post 32 of the driving wheel 3 can be screwed. An element such as a cap or a bolt is disassembled or locked, and when the dial member 52 is clockwise moved to the down position, and the wrench body 2 is rotated counterclockwise, the driving wheel 3 is a driven wheel. 4 slightly shifting to a portion having a space in the lower portion of the receiving groove 23 (as shown in FIG. 6), so that the ratchet teeth 42 on the teeth 40 of the driven wheel 4 do not interact with the ratchet teeth 231 on the wall surface of the receiving groove 23 The locking, and the driven wheel 4 is rotated by the driving wheel 3 to form an idling state; and when the wrench body 2 is to be reversely rotated counterclockwise, the toggle only needs to be switched. The member 52 rotates the dial member 52 counterclockwise to the direction in which the wrench body 2 is to be rotated (as shown in the fourth and seventh figures), and the dial member 52 drives the linking member 44 to rotate counterclockwise, and the linking member 44 Then, the top holding block 45 is rotated in the through hole 43 of the driven wheel 4, and the top holding block 45 is pushed by the elastic force of the spring 46, and drives the driven wheel 4 to be displaced downward in the receiving groove 23 of the wrench body 2. A space is formed on the upper portion of the receiving groove 23, and the driven wheel 4 is moved downward by the elastic pushing of the spring 46 and abuts against the inner wall surface of the lower portion of the receiving groove 23 of the wrench body 2 (as shown in FIG. 7). When the wrench body 2 is rotated counterclockwise, the teeth 30 of the driving wheel 3 rotate clockwise to push the teeth 40 of the driven wheel 4 to rotate counterclockwise, and the ratchet teeth 42 of the driven wheel 4 are tightly held. The socket tool 231 of the lower part of the groove 23 is formed, and a locking state is formed, so that the driving wheel 3 cannot rotate, and the sleeve tool sleeved on the sleeve post 32 of the driving wheel 3 (not shown) It is possible to disassemble or lock the components such as the nut or the bolt, and when the dial member 52 is moved counterclockwise in the up position, the wrench body 2 is smooth. When the needle rotates, the driving wheel 3 can slightly shift the driven wheel 4 to the space with the upper portion of the receiving groove 23, so that the ratchet teeth 42 on the teeth 40 of the driven wheel 4 do not face the wall of the receiving groove 23. The ratchet teeth 231 are locked to each other, and the driven wheel 4 is rotated by the driving wheel 3 to form an idling state. Thus, the ratchet teeth 42 on the teeth 40 of the driven wheel 4 and the wall of the receiving groove 23 are formed. The ratchet teeth 231 are positioned and engaged with each other, and the effect of the jam braking can be surely achieved without the occurrence of slippage and braking, and the teeth 30 of the driving wheel 3 are provided with the arc surface 31 and the gear teeth 40 of the driven wheel 4. The mutual matching arrangement of the concave curved surfaces 41 can increase the contact area of the mutual meshing, so that the occlusion and the transmission are more stable and sure, so that there is no situation that the jumping teeth and the transmission are not accurate; The teeth 30 of the driving wheel 3 are arranged such that the circular arc surface 31 and the gear teeth 40 of the driven wheel 4 are provided with a concave curved surface 41, so that the transmission is extremely stable and accurate, and the sleeve of the driving wheel 3 can be made. The barrel post 32 can be adjusted to any angle before and after Use (as shown in Figures 8 and 9) to adjust the angle of force of the tool to match the different space constraints at work, which is very convenient to use.

In view of the above, the present invention has achieved the intended use and efficacy, and is more desirable and practical than the prior art, but the above embodiments are only specifically described for the preferred embodiment of the present invention. The present invention is not intended to limit the scope of the invention, and all other equivalents and modifications may be included in the scope of the invention covered by the invention.

2‧‧‧Wrench body

20‧‧‧Working end

21‧‧‧ concave

210‧‧‧Perforation

22‧‧‧ accommodating slots

220‧‧‧through hole

23‧‧‧Support slot

230‧‧‧ Groove

231‧‧‧ ratchet

3‧‧‧Drive wheel

30‧‧‧ teeth

31‧‧‧Arc face

32‧‧‧Sleeve Posts

4‧‧‧ driven wheel

40‧‧‧ teeth

41‧‧‧ concave curved surface

42‧‧‧ ratchet

43‧‧‧Perforation

44‧‧‧ linkages

440‧‧‧Perforation

441‧‧‧ positioning convex

442‧‧‧ positioning stud

45‧‧‧Top block

450‧‧‧Bump

46‧‧‧ Spring

5‧‧‧Block

50‧‧‧through hole

51‧‧‧ screw holes

52‧‧‧WD parts

520‧‧‧Perforation

53‧‧‧Fixed components

6‧‧‧ Cover

60‧‧‧through hole

61‧‧‧ Positioning perforation

62‧‧‧Perforation

63‧‧‧ Screw components

Claims (2)

A ratchet wrench (2) is mainly provided with a wrench body, and a concave surface is arranged on one side of the working end of the wrench body, and a concave groove and a receiving groove are disposed in the concave surface, and the receiving groove and the receiving groove are arranged The other side of the working end is provided with a through hole penetrating the receiving groove, and the outer side of the wrench body is provided with a dialing member; a driving wheel is disposed in the receiving groove of the wrench body, The driving wheel is provided with gear teeth, and the driving wheel is provided with a sleeve rod; a driven wheel is disposed in the bearing groove of the wrench body, and the driven wheel is provided with gear teeth, the driven wheel wheel The tooth system is meshed with the teeth of the driving wheel; a cover plate is disposed on the concave surface of the wrench body, and the cover plate is provided with a through hole through which the sleeve rod of the driving wheel is inserted; The utility model is characterized in that: the inner wall surface of the receiving groove of the wrench body is provided with a ratchet tooth, and the driving wheel is provided with a spherical body, and the outer wall surface of each tooth of the driving wheel is a circular arc surface, and each of the driven wheels The arc surface of the gear teeth of the driving wheel is provided with a concave curved surface, and each wheel of the driven wheel is provided with a ratcheting gear on the driven wheel can be engaged with a ratchet tooth on the inner wall surface of the receiving groove of the wrench body, the driven wheel is provided with a through hole, and a linking member is disposed in the through hole of the driven wheel, and the linkage One end of the piece is connected to a dialing member disposed outside the wrench body, and the other end of the linking member is positioned on the cover plate, the linking member is provided with a through hole, and a top holding block is disposed on the linking member And being disposed in the through hole of the driven wheel, the top holding block is provided with a protruding post for inserting through the through hole of the linking member, and a spring sleeve is sleeved on the protruding post of the top holding block, the spring And located between the top holding block and the linkage. The ratchet wrench (2) as claimed in claim 1, wherein the wrench a groove corresponding to the receiving groove is disposed on the other side of the working end of the body, and a plurality of perforations communicating with the groove are disposed on the concave surface of the wrench body, and a positioning convex is disposed on one side of the linking member The body is provided with a positioning protrusion on the other side, and a blocking piece is disposed in the groove of the wrench body, and the blocking piece is provided with a through hole through which the positioning protrusion of the linking member passes, the blocking piece corresponding to the wrench body a threaded hole is disposed in the through hole of the groove, and the dialing member is disposed on the outer side of the blocking piece. The sliding member is provided with a through hole, and the fixing hole is provided with a fixing component, the fixing component And being disposed on the positioning protrusion of the linking member, wherein the cover plate is provided with a positioning through hole for the positioning protrusion on the other side of the linking member to pass through the set position, and the cover plate corresponds to the concave surface of the wrench body The through hole is provided with a through hole, and the screwing member is inserted through the through hole of the cover plate and the wrench body, and is screwed into the screw hole of the blocking piece.