Quick-turn ratchet wrench
By designing a ratchet head and a turntable structure within the ratchet groove in the ratchet wrench, combined with a control lever and a limiting part, the problem of inconvenient sleeve push rod caused by the large coverage area of the turntable in existing ratchet wrenches is solved, achieving the effect of quick rotation and sleeve withdrawal.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-07-05
- Publication Date
- 2026-04-03
AI Technical Summary
Existing ratchet wrenches require the rotating disc to cover a large area of the back of the ratchet for easy turning by the user, which makes it inconvenient to set up the socket push rod and affects the efficiency of use.
A ratchet wrench with rapid rotation was designed. By setting a ratchet head and a turntable in a ratchet groove on the main body, the ratchet head is provided with a drive part and a locking part, and the turntable is connected to a control rod. The control rod cooperates with the limiting part to realize the rapid rotation of the ratchet head and the disengagement of the sleeve.
It enables quick rotation and sleeve withdrawal, improving efficiency and ease of operation.
Smart Images

Figure CN117620950B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a ratchet wrench, and more particularly to a ratchet wrench that can be quickly turned. Background Technology
[0002] Please refer to patent application TWI640404B, "Ratchet Wrench Structure," which describes a ratchet wrench structure comprising: a body having a first receiving groove, a second receiving groove, and a first circumferential surface; a ratchet pivotally disposed within the first receiving groove, the ratchet having a ratchet portion, a first engaging portion, a pressing portion, and a first pivot portion; and a rotating disc integrally rotating with the ratchet, the rotating disc having a rotating portion and a second engaging portion, the second engaging portion being fitted onto the first engaging portion, and the rotating disc having a fitting groove. The end protrudes from the fitting groove, and a first abutting part is provided between the second joint and the fitting groove. The pressing part abuts against the first abutting part, so that the ratchet and the rotating disk are restricted by the pressing part and the first abutting part and do not disengage. After the rotating disk is fitted onto the first joint of the ratchet, the pressing part is provided by stamping or riveting. The outer peripheral surface of the first end protrudes outward from the pressing part, and the pressing part presses against the first abutting part. The rotating disk is then engaged with the ratchet and rotates as a whole.
[0003] However, in order to make it convenient for users to turn the rotating disc, the aforementioned ratchet wrench requires the rotating disc to be set on a large area covering the back of the ratchet, and the push rod used to release the socket can only be set in the center of the rotating disc, which is not conducive to the user pressing. Summary of the Invention
[0004] The main objective of this invention is to provide a ratchet wrench that can be quickly turned.
[0005] This invention provides a ratchet wrench with quick-turn capability, comprising a body, a ratchet head, and a turntable. The body has a ratchet groove along a virtual pivot axis. The ratchet head is rotatably disposed within the ratchet groove relative to the body about the pivot axis. One end of the ratchet head has a drive unit and a locking member. The ratchet head has a receiving groove radially along the pivot axis and a control groove axially along the pivot axis. The receiving groove is located within the drive unit, the locking member is located within the receiving groove, and the control groove is adjacent to the receiving groove. The dial is connected to the ratchet head and can rotate synchronously or move relative to the ratchet head along the axis of rotation between the locked and released positions. The dial is connected to a control lever that can move or rotate with the dial. The control lever is inserted into the control slot and abuts against the locking member. When the dial moves from the released position to the locked position, the locking member protrudes out of the receiving slot. When the dial moves from the locked position to the released position, the locking member retracts. The ratchet wrench, through the above structure, not only allows the user to quickly turn it but also allows for quick disengagement of the socket.
[0006] The inner periphery of the control groove is provided with a first limiting part, and the outer periphery of the control lever is provided with a second limiting part. The second limiting part is movably connected to the first limiting part along the axis of the rotating shaft. The dial can drive the ratchet head to rotate through the connection between the second limiting part and the first limiting part.
[0007] The dial and the control lever are integrally formed. The first limiting part is recessed in the inner periphery of the control groove and the inner periphery of the first limiting part is concave arc surface. The second limiting part is protruding in the outer periphery of the control lever and the outer periphery of the second limiting part is convex arc surface.
[0008] The body has a first end face and a second end face opposite to the first end face. The ratchet groove connects the first end face and the second end face. The drive part protrudes from the first end face, and the dial is disposed on the second end face.
[0009] The control slot has a wide portion, a narrow portion, and a middle portion on its inner periphery. The wide portion is adjacent to the second end face, and the first limiting portion is recessed in the wide portion. The narrow portion is adjacent to the drive portion, and the receiving groove is connected to the narrow portion. The middle portion connects the wide portion and the narrow portion. The wide portion forms a first width along the radial direction of the rotating shaft, and the narrow portion forms a second width along the radial direction of the rotating shaft. The second width is smaller than the first width. The control lever has a wide section and a narrow section. The wide section is connected to the dial, and the second limiting portion is located in the wide section. The wide section is located within the wide portion, and the narrow section is connected to the end of the wide section opposite to the dial. The narrow section is located within the narrow portion.
[0010] The control slot has a wide portion, a narrow portion, and a middle portion on its inner periphery. The wide portion is adjacent to the second end face, and the narrow portion is adjacent to the drive portion. The receiving slot is connected to the narrow portion, and the middle portion connects the wide portion and the narrow portion. The wide portion forms a first width along the radial direction of the rotating shaft, and the narrow portion forms a second width along the radial direction of the rotating shaft. The second width is smaller than the first width. The control lever has a wide section and a narrow section. The wide section is connected to the dial and is located within the wide portion. The narrow section is connected to the end of the wide section opposite to the dial and is located within the narrow portion. The cross-sectional shape of the wide portion along the radial direction of the rotating shaft and the cross-sectional shape of the wide section along the radial direction of the rotating shaft are both non-circular and have the same shape.
[0011] The ratchet head has a first limiting part at one end opposite to the drive unit, and the dial has a second limiting part on one side adjacent to the ratchet head. The second limiting part is movably connected to the first limiting part along the axis parallel to the rotating shaft, and the dial can drive the ratchet head to rotate through the connection between the second limiting part and the first limiting part.
[0012] The dial and the control lever are integrally formed. The first limiting part is hole-shaped and recessed in the ratchet head, extending along the axis parallel to the rotating shaft. The second limiting part is column-shaped and protrudes from the dial, extending along the axis parallel to the rotating shaft. The second limiting part is connected to the first limiting part by a plug-in connection.
[0013] The control slot has a wide portion, a narrow portion, and a middle portion on its inner periphery. The wide portion is adjacent to the second end face, and the narrow portion is adjacent to the drive portion. The receiving slot is connected to the narrow portion, and the middle portion connects the wide portion and the narrow portion. The wide portion forms a first width along the radial direction of the rotating shaft, and the narrow portion forms a second width along the radial direction of the rotating shaft. The second width is smaller than the first width. The control lever has a wide section and a narrow section. The wide section is connected to the dial and is located within the wide portion. The narrow section is connected to the end of the wide section opposite to the dial and is located within the narrow portion.
[0014] The control lever is fitted with an elastic element, which is fitted into the narrow section and disposed within the control groove. One end of the elastic element abuts against the middle portion and the other end abuts against the end of the wide section adjacent to the narrow section.
[0015] The ratchet head has a first limiting portion on its outer periphery along the radial direction of the rotating shaft. The first limiting portion is adjacent to one end of the ratchet head opposite to the drive portion. The dial has a limiting flange on one side of the ratchet head along a direction parallel to the axial direction of the rotating shaft. The limiting flange has a second limiting portion on one side of the control lever along the radial direction of the rotating shaft. The second limiting portion is movably connected to the first limiting portion along a direction parallel to the axial direction of the rotating shaft. The dial can drive the ratchet head to rotate through the connection between the second limiting portion and the first limiting portion.
[0016] The dial, the control lever, and the limiting flange are integrally formed. The first limiting part has a serrated structure on the outer periphery of the ratchet head, which is annular with the rotating shaft as the center and extends along the axis parallel to the rotating shaft. The limiting flange protrudes from the dial and is annular with the rotating shaft as the center. The second limiting part has a serrated structure on the inner periphery of the limiting flange, which extends along the axis parallel to the rotating shaft. The second limiting part is connected to the first limiting part in an engaging manner.
[0017] The body has a first end face and a second end face opposite to the first end face. The ratchet groove connects the first end face and the second end face. The drive part protrudes from the first end face, the first limiting part protrudes from the second end face, and the dial is disposed on the second end face.
[0018] The advantage of this invention is that the above structure not only allows the user to quickly rotate the sleeve but also allows for quick withdrawal. Attached Figure Description
[0019] Figure 1 This is a perspective view of the first embodiment of the ratchet wrench of the present invention, which can be quickly turned.
[0020] Figure 2 This is an exploded perspective view of the first embodiment of the ratchet wrench of the present invention, which can be quickly turned.
[0021] Figure 3 This is a cross-sectional structural diagram of the first embodiment of the ratchet wrench of the present invention, which can be quickly turned.
[0022] Figure 4 This is a cross-sectional view of another perspective of the first embodiment of the ratchet wrench of the present invention, which can be quickly turned.
[0023] Figure 5 This is a diagram illustrating the movement of the dial from the locked position to the released position in the first embodiment of the ratchet wrench of the present invention.
[0024] Figure 6 This is an exploded perspective view of the second embodiment of the ratchet wrench of the present invention, which can be quickly turned.
[0025] Figure 7 This is a cross-sectional view of the second embodiment of the ratchet wrench of the present invention, which can be quickly turned.
[0026] Figure 8 This is an exploded perspective view of the third embodiment of the ratchet wrench of the present invention, which can be quickly turned.
[0027] Figure 9 This is a cross-sectional view of the third embodiment of the ratchet wrench of the present invention, which can be quickly turned.
[0028] Figure 10 This is an exploded perspective view of the fourth embodiment of the ratchet wrench of the present invention, which can be quickly turned.
[0029] Figure 11 This is a cross-sectional view of the fourth embodiment of the ratchet wrench of the present invention, which can be quickly turned.
[0030] Figure 12 This is a cross-sectional view of another perspective of the fourth embodiment of the ratchet wrench of the present invention.
[0031] Explanation of reference numerals in the attached drawings: 10 Ratchet wrench; 20 Body; 21 First end face; 22 Second end face; 23 Ratchet groove; 30 Ratchet head; 31 Drive part; 32 Clamping element; 33 Receiving groove; 34 Control groove; 341 First limiting part; 342 Wide part; 343 Narrow part; 344 Middle part; 40 Dial; 41 Turning part; 42 Control lever; 421 Second limiting part; 422 Wide section; 423 Narrow section; 43 Elastic element; 22a Second end face; 30a Ratchet head; 31a Drive part; 33a Receiving groove; 34a Control groove; 342a Wide part; 343a Narrow part; 344a Middle part; 40a Dial; 42a Control lever; 422 a. Wide section; 423a. Narrow section; 22b. Second end face; 30b. Ratchet head; 31b. Drive unit; 33b. Receiving groove; 34b. Control groove; 342b. Wide section; 343b. Narrow section; 344b. Middle section; 35b. First limiting part; 40b. Dial; 42b. Control lever; 422b. Wide section; 423b. Narrow section; 44b. Second limiting part; 20c. Body; 21c. First end face; 22c. Second end face; 23c. Ratchet groove; 30c. Ratchet head; 31c. Drive unit; 36c. First limiting part; 40c. Dial; 42c. Control lever; 45c. Limiting flange; 451c. Second limiting part; L. Rotary shaft; W1. First width; W2. Second width. Detailed Implementation
[0032] Please refer to Figures 1 to 5 The figures shown are a perspective view, an exploded perspective view, a cross-sectional view, and an operational diagram of the first embodiment of the ratchet wrench of the present invention. The ratchet wrench 10 of the present invention includes a body 20, a ratchet head 30, and a turntable 40; wherein:
[0033] The main body 20 is provided with a ratchet groove 23 along a virtual rotating axis L. The main body 20 is provided with a first end face 21 and a second end face 22 opposite to the first end face 21. The ratchet groove 23 connects the first end face 21 and the second end face 22.
[0034] The ratchet head 30 is rotatably disposed in the ratchet groove 23 relative to the body 20 with the rotating shaft L as the center. One end of the ratchet head 30 is provided with a drive part 31 and a locking member 32. The drive part 31 protrudes from the first end face 21. The ratchet head 30 is provided with a receiving groove 33 radially along the rotating shaft L and a control groove 34 axially along the rotating shaft L. The receiving groove 33 is disposed in the drive part 31, the locking member 32 is disposed in the receiving groove 33, and the control groove 34 is connected to the receiving groove 33.
[0035] The rotary dial 40 is disposed on the second end face 22. The rotary dial 40 has a rotating part 41 disposed on the outer periphery of the radial direction of the rotating shaft L. The rotary dial 40 can rotate synchronously with the ratchet head 30 or move relative to the ratchet head 30 in the axial direction of the rotating shaft L between the locked position and the released position. The rotary dial 40 is connected to a control lever 42. The control lever 42 can move or rotate with the rotary dial 40. The control lever 42 is inserted into the control groove 34 and abuts against the locking member 32. When the rotary dial 40 moves from the released position to the locked position, the locking member 32 protrudes outward from the receiving groove 33. When the rotary dial 40 moves from the locked position to the released position, the locking member 32 retracts inward.
[0036] The inner periphery of the control groove 34 is provided with a first limiting part 341, and the outer periphery of the control lever 42 is provided with a second limiting part 421. The second limiting part 421 is movably connected to the first limiting part 341 along the axis of rotation L. The turntable 40 can drive the ratchet head 30 to rotate through the connection between the second limiting part 421 and the first limiting part 341.
[0037] The inner periphery of the control groove 34 is provided with a wide portion 342, a narrow portion 343, and a middle portion 344. The wide portion 342 is adjacent to the second end face 22, and the first limiting portion 341 is recessed in the wide portion 342. The narrow portion 343 is adjacent to the driving portion 31, and the receiving groove 33 is connected to the narrow portion 343. The middle portion 344 connects the wide portion 342 and the narrow portion 343. The width of the wide portion 342 along the radial direction of the rotating shaft L forms a first width W1. The narrow portion 343... A second width W2 is formed along the radial width of the pivot L. The second width W2 is smaller than the first width W1. The control lever 42 is provided with a wide section 422 and a narrow section 423. The wide section 422 is connected to the dial 40. The second limiting part 421 is provided in the wide section 422. The wide section 422 is located within the wide section 342. The narrow section 423 is connected to one end of the wide section 422 opposite to the dial 40. The narrow section 423 is located within the narrow section 343.
[0038] The control lever 42 is fitted with an elastic element 43, which is fitted into the narrow section 423 and disposed in the control groove 34. One end of the elastic element 43 abuts against the middle part 344 and the other end abuts against the end of the wide section 422 adjacent to the narrow section 423.
[0039] The dial 40 and the control lever 42 are integrally formed. The first limiting part 341 is recessed in the inner periphery of the control groove 34 and the inner periphery of the first limiting part 341 is concave arc surface. The second limiting part 421 is protruding in the outer periphery of the control lever 42 and the outer periphery of the second limiting part 421 is convex arc surface.
[0040] The ratchet wrench 10, through the aforementioned structure, not only allows the user to quickly turn the wrench but also to quickly remove the socket. When using the ratchet wrench 10, if the screw is not tightened, the user can directly and manually turn the turning part 41 to rotate the ratchet head 30, thereby quickly tightening or loosening the screw. Furthermore, the turning disc 40 allows the user to directly remove the socket by pressing it, and the large area of the turning disc 40 makes the removal of the socket very easy to operate.
[0041] Please refer to Figure 6 and Figure 7 The diagram shows an exploded perspective view and a cross-sectional view of the second embodiment of the ratchet wrench of the present invention. The second embodiment is largely the same as the first embodiment, with the main difference being that the inner periphery of the control groove 34a is provided with a wide portion 342a, a narrow portion 343a, and a middle portion 344a. The wide portion 342a is adjacent to the second end face 22a, the narrow portion 343a is adjacent to the drive portion 31a, the receiving groove 33a is connected to the narrow portion 343a, and the middle portion 344a connects the wide portion 342a and the narrow portion 343a. The width of the wide portion 342a along the radial direction of the rotating shaft L forms a first width W1, and the width of the narrow portion 343a along the radial direction of the rotating shaft L forms a second width W2, which is smaller than the first width W1. The control lever 42a is provided with a wide section 422a and... A narrow segment 423a is provided, and a wide segment 422a is connected to the dial 40a. The wide segment 422a is disposed within the wide portion 342a. The narrow segment 423a is connected to one end of the wide segment 422a opposite to the dial 40a. The narrow segment 423a is disposed within the narrow portion 343a. The cross-sectional shape of the wide portion 342a along the radial direction of the rotation axis L is non-circular but the same as the cross-sectional shape of the wide segment 422a along the radial direction of the rotation axis L. This allows the dial 40a to drive the ratchet head 30a to rotate through the connection between the wide segment 422a and the wide portion 342a. In this embodiment, the cross-sectional shape of the wide portion 342a along the radial direction of the rotation axis L is quadrilateral, as is the cross-sectional shape of the wide segment 422a along the radial direction of the rotation axis L.
[0042] Please refer to Figure 8 and Figure 9 The diagram shows an exploded perspective view and a cross-sectional view of the third embodiment of the ratchet wrench of the present invention. The third embodiment is largely the same as the first embodiment, with the main difference being that a first limiting part 35b is provided at the end of the ratchet head 30b opposite to the drive part 31b, and a second limiting part 44b is provided on the side of the dial 40b adjacent to the ratchet head 30b. The second limiting part 44b is movably connected to the first limiting part 35b along a parallel axis L. The dial 40b can drive the ratchet head 30b to rotate through the connection between the second limiting part 44b and the first limiting part 35b.
[0043] The dial 40b and the control lever 42b are integrally formed. The first limiting part 35b is a circular hole and is recessed in the ratchet head 30b, extending along the axis parallel to the rotating shaft L. The second limiting part 44b is cylindrical and protrudes from the dial 40b, extending along the axis parallel to the rotating shaft L. The second limiting part 44b is connected to the first limiting part 35b by a plug-in connection.
[0044] The inner periphery of the control groove 34b is provided with a wide portion 342b, a narrow portion 343b, and a middle portion 344b. The wide portion 342b is adjacent to the second end face 22b, the narrow portion 343b is adjacent to the drive portion 31b, the receiving groove 33b is connected to the narrow portion 343b, and the middle portion 344b connects the wide portion 342b and the narrow portion 343b. The width of the wide portion 342b along the radial direction of the rotating shaft L forms a first width W1, and the width of the narrow portion 342b is... The width of 3b along the radial direction of the pivot L forms a second width W2, which is smaller than the first width W1. The control lever 42b is provided with a wide section 422b and a narrow section 423b. The wide section 422b is connected to the dial 40b and is disposed within the wide portion 342b. The narrow section 423b is connected to one end of the wide section 422b opposite to the dial 40b and is disposed within the narrow portion 343b.
[0045] Please refer to Figures 10 to 12 The diagram shows an exploded perspective view and a cross-sectional view of the fourth embodiment of the ratchet wrench of the present invention. The fourth embodiment is largely the same as the first embodiment, with the main difference being that a first limiting portion 36c is provided on the outer periphery of the ratchet head 30c along the radial direction of the rotating shaft L. The first limiting portion 36c is adjacent to one end of the ratchet head 30c opposite to the driving portion 31c. A limiting flange 45c is provided on one side of the dial 40c adjacent to the ratchet head 30c along a direction parallel to the axial direction of the rotating shaft L. A second limiting portion 451c is provided on one side of the limiting flange 45c along the radial direction of the rotating shaft L adjacent to the control lever 42c. The second limiting portion 451c is movably connected to the first limiting portion 36c along a direction parallel to the axial direction of the rotating shaft L. The dial 40c can drive the ratchet head 30c to rotate through the connection between the second limiting portion 451c and the first limiting portion 36c.
[0046] The dial 40c, the control lever 42c, and the limiting flange 45c are integrally formed. The first limiting part 36c forms a serrated structure on the outer periphery of the ratchet head 30c, which is annular with the rotating shaft L as the center and extends along the axis parallel to the rotating shaft L. The limiting flange 45c protrudes from the dial 40c and is annular with the rotating shaft L as the center. The second limiting part 451c forms a serrated structure on the inner periphery of the limiting flange 45c, which extends along the axis parallel to the rotating shaft L. The second limiting part 451c is connected to the first limiting part 36c in an engaging manner.
[0047] The body 20c is provided with a first end face 21c and a second end face 22c opposite to the first end face 21c. The ratchet groove 23c connects the first end face 21c and the second end face 22c. The drive part 31c protrudes from the first end face 21c, the first limiting part 36c protrudes from the second end face 22c, and the dial 40c is disposed on the second end face 22c.
[0048] Based on the above, the present invention has the following advantages:
[0049] This invention provides a ratchet wrench with quick-turn capability. The ratchet wrench includes a body, a ratchet head, and a turntable. The body has a ratchet groove along a virtual rotating shaft. The ratchet head is rotatably disposed within the ratchet groove relative to the body about the rotating shaft. One end of the ratchet head has a drive unit and a locking member. The ratchet head has a receiving groove along the radial direction of the rotating shaft and a control groove along the axial direction of the rotating shaft. The receiving groove is disposed within the drive unit, the locking member is disposed within the receiving groove, and the control groove is adjacent to the receiving groove. The dial is connected to the ratchet head and can rotate synchronously or move relative to the ratchet head along the axis of rotation between the locked and released positions. The dial is connected to a control lever that can move or rotate with the dial. The control lever is inserted into the control slot and abuts against the locking member. When the dial moves from the released position to the locked position, the locking member protrudes out of the receiving slot. When the dial moves from the locked position to the released position, the locking member retracts. The ratchet wrench, through the above structure, not only allows the user to quickly turn it but also allows for quick disengagement of the socket.
Claims
1. A ratchet wrench that can be quickly turned, characterized in that, Including: A body having a ratchet groove along a virtual axis of rotation; A ratchet head is rotatably disposed in the ratchet groove relative to the body about the pivot. One end of the ratchet head is provided with a drive part and a locking member. The ratchet head is provided with a receiving groove radially along the pivot and a control groove axially along the pivot. The receiving groove is disposed in the drive part, the locking member is disposed in the receiving groove, and the control groove is connected to the receiving groove. A rotary dial is capable of rotating synchronously with the ratchet head or moving axially relative to the ratchet head between a locked position and a released position. The rotary dial is connected to a control lever that can move or rotate with the rotary dial. The control lever is inserted into the control slot and abuts against the locking member. When the rotary dial moves from the released position to the locked position, the locking member protrudes outward from the receiving slot. When the rotary dial moves from the locked position to the released position, the locking member retracts inward.
2. The ratchet wrench with quick-turn capability as described in claim 1, characterized in that: The inner periphery of the control groove is provided with a first limiting part, and the outer periphery of the control lever is provided with a second limiting part. The second limiting part is movably connected to the first limiting part along the axis of the rotating shaft. The dial can drive the ratchet head to rotate through the connection between the second limiting part and the first limiting part.
3. The ratchet wrench with quick-turn capability as described in claim 2, characterized in that: The dial and the control lever are integrally formed. The first limiting part is recessed in the inner periphery of the control groove and the inner periphery of the first limiting part is concave arc surface. The second limiting part is protruding in the outer periphery of the control lever and the outer periphery of the second limiting part is convex arc surface.
4. The ratchet wrench with quick-turn capability as described in claim 2, characterized in that: The body has a first end face and a second end face opposite to the first end face. The ratchet groove connects the first end face and the second end face. The drive part protrudes from the first end face, and the dial is disposed on the second end face.
5. The ratchet wrench with quick-turn capability as described in claim 4, characterized in that: The control slot has a wide portion, a narrow portion, and a middle portion on its inner periphery. The wide portion is adjacent to the second end face, and the first limiting portion is recessed in the wide portion. The narrow portion is adjacent to the drive portion, and the receiving groove is connected to the narrow portion. The middle portion connects the wide portion and the narrow portion. The wide portion forms a first width along the radial direction of the rotating shaft, and the narrow portion forms a second width along the radial direction of the rotating shaft. The second width is smaller than the first width. The control lever has a wide section and a narrow section. The wide section is connected to the dial, and the second limiting portion is located in the wide section. The wide section is located within the wide portion, and the narrow section is connected to the end of the wide section opposite to the dial. The narrow section is located within the narrow portion.
6. The ratchet wrench with quick-turn capability as described in claim 4, characterized in that: The control slot has a wide portion, a narrow portion, and a middle portion on its inner periphery. The wide portion is adjacent to the second end face, and the narrow portion is adjacent to the drive portion. The receiving slot is connected to the narrow portion, and the middle portion connects the wide portion and the narrow portion. The wide portion forms a first width along the radial direction of the rotating shaft, and the narrow portion forms a second width along the radial direction of the rotating shaft. The second width is smaller than the first width. The control lever has a wide section and a narrow section. The wide section is connected to the dial and is located within the wide portion. The narrow section is connected to the end of the wide section opposite to the dial and is located within the narrow portion. The cross-sectional shape of the wide portion along the radial direction of the rotating shaft and the cross-sectional shape of the wide section along the radial direction of the rotating shaft are both non-circular and have the same shape.
7. The ratchet wrench with quick-turn capability as described in claim 1, characterized in that: The ratchet head has a first limiting part at one end opposite to the drive unit, and the dial has a second limiting part on one side adjacent to the ratchet head. The second limiting part is movably connected to the first limiting part along the axis parallel to the rotating shaft, and the dial can drive the ratchet head to rotate through the connection between the second limiting part and the first limiting part.
8. The ratchet wrench with quick-turn capability as described in claim 7, characterized in that: The dial and the control lever are integrally formed. The first limiting part is hole-shaped and recessed in the ratchet head, extending along the axis parallel to the rotating shaft. The second limiting part is column-shaped and protrudes from the dial, extending along the axis parallel to the rotating shaft. The second limiting part is connected to the first limiting part by a plug-in connection.
9. The ratchet wrench with quick-turn capability as described in claim 7, characterized in that: The body has a first end face and a second end face opposite to the first end face. The ratchet groove connects the first end face and the second end face. The drive part protrudes from the first end face, and the dial is disposed on the second end face.
10. The ratchet wrench with quick-turn capability as described in claim 9, characterized in that: The control slot has a wide portion, a narrow portion, and a middle portion on its inner periphery. The wide portion is adjacent to the second end face, and the narrow portion is adjacent to the drive portion. The receiving slot is connected to the narrow portion, and the middle portion connects the wide portion and the narrow portion. The wide portion forms a first width along the radial direction of the rotating shaft, and the narrow portion forms a second width along the radial direction of the rotating shaft. The second width is smaller than the first width. The control lever has a wide section and a narrow section. The wide section is connected to the dial and is located within the wide portion. The narrow section is connected to the end of the wide section opposite to the dial and is located within the narrow portion.
11. The ratchet wrench with quick-turn capability as described in claim 1, characterized in that: The ratchet head has a first limiting portion on its outer periphery along the radial direction of the rotating shaft. The first limiting portion is adjacent to one end of the ratchet head opposite to the drive portion. The dial has a limiting flange on one side of the ratchet head along a direction parallel to the axial direction of the rotating shaft. The limiting flange has a second limiting portion on one side of the control lever along the radial direction of the rotating shaft. The second limiting portion is movably connected to the first limiting portion along a direction parallel to the axial direction of the rotating shaft. The dial can drive the ratchet head to rotate through the connection between the second limiting portion and the first limiting portion.
12. The ratchet wrench with quick-turn capability as described in claim 11, characterized in that: The dial, the control lever, and the limiting flange are integrally formed. The first limiting part has a serrated structure on the outer periphery of the ratchet head, which is annular with the rotating shaft as the center and extends along the axis parallel to the rotating shaft. The limiting flange protrudes from the dial and is annular with the rotating shaft as the center. The second limiting part has a serrated structure on the inner periphery of the limiting flange, which extends along the axis parallel to the rotating shaft. The second limiting part is connected to the first limiting part in an engaging manner.
13. The ratchet wrench with quick-turn capability as described in claim 12, characterized in that: The body has a first end face and a second end face opposite to the first end face. The ratchet groove connects the first end face and the second end face. The drive part protrudes from the first end face, the first limiting part protrudes from the second end face, and the dial is disposed on the second end face.
Citation Information
Patent Citations
Quick-disassembling ratchet D head of ratchet wrench
CN2291263Y
Ratchet wrench capable of rapidly turning
TWI830672B