Ratchet wrench assembly and ratchet wrench

Abstract

The application discloses a ratchet wrench assembly and a ratchet wrench, and belongs to the field of wrench tools, and solves the problem of inconvenient replacement of a ratchet head, and the technical scheme for solving the problem mainly comprises a ratchet tooth and a ratchet head, the ratchet head comprises a body and an operation button, the body is provided with a containing cavity, a first locking piece is arranged between the operation button and the body, a first through hole is arranged on the body, a first locking groove is arranged on the ratchet tooth, the operation button is provided with a first recess and a second recess for abutting against the first locking piece, and the operation button has a first position, in which the first recess abuts against the first locking piece to keep the first locking piece from being removed from the first locking groove, and a second position, in which the second recess abuts against the first locking piece to keep the first locking piece from being removed from the first locking groove. The application is mainly used for making the replacement of the ratchet head more convenient and improving work efficiency.

Description

Technical Field

[0001] This invention relates to the field of wrench tools, and in particular to a ratchet wrench assembly and a ratchet wrench. Background Technology

[0002] Ratchet wrenches are primarily used to tighten or loosen nuts or bolts. Existing ratchet wrenches generally consist of ratchet teeth, a ratchet head, and a handle. Both the ratchet teeth and ratchet head are mounted on the handle. Since nuts and bolts come in various sizes, different ratchet heads are required to complete a task, necessitating the use of multiple ratchet wrenches, which increases costs. Of course, in some existing ratchet wrenches, the ratchet head can be detachably mounted on the ratchet teeth, such as the wrench shown in US Patent 6053076, which allows the ratchet head to be removed from the handle. The drawback of this invention is that the user needs to completely unscrew the screw and remove the pin before removing the ratchet head, then replace it with a new ratchet head, and re-screw the screw into the pin. This entire replacement process is time-consuming and inconvenient. Summary of the Invention

[0003] The purpose of this invention is to provide a ratchet wrench assembly that solves the problem of inconvenient ratchet head replacement, making ratchet head replacement more convenient and improving work efficiency.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a ratchet wrench assembly, comprising ratchet teeth and a ratchet head detachably mounted on the ratchet teeth, the ratchet head comprising a body and an operation button, the body having a receiving cavity for assembling the operation button, a first locking member being provided between the operation button and the body, the body having a first through hole for receiving the first locking member, the ratchet teeth having a first locking groove corresponding to the first through hole, the operation button having a first groove and a second groove of different depths for abutting the first locking member, the operation button having a first position in which the first groove abuts the first locking member to hold the first locking member in a first lock groove so that the first locking member cannot be removed, and a second position in which the second groove abuts the first locking member to hold the first locking member in a second lock groove so that the first locking member can be removed.

[0005] After adopting the above technical solution, the present invention has the following advantages: By providing a first groove and a second groove of different depths for abutting the first locking member on the operation button, when the operation button is in the first position, the first locking member is kept in the first locking groove and cannot be moved out, so that the ratchet head can be locked to effectively prevent the ratchet head from loosening, which is conducive to improving the safety of use. When the operation button is in the second position, the first locking member can be moved out and kept in the first locking groove, and the ratchet head can be disassembled, so that the user can replace the ratchet head according to the needs, making replacement more convenient.

[0006] Furthermore, the first groove has a first abutment surface of equal depth along the axial direction of the ratchet head for abutting the first locking member. When the operating button slides along the axial direction of the ratchet head, the first locking member is always pushed into the first locking groove. The second groove has second abutment surfaces of different depths along the axial direction of the ratchet head for abutting the first locking member. When the operating button slides axially, the first locking member pushes into or moves out of the second locking groove. By adopting the aforementioned technical solution, by changing the depth of the first abutment surface of the first groove and the second abutment surface of the second groove, the operating button in the first position keeps the first locking member always pushed into the first locking groove, effectively preventing the ratchet head from loosening, and the operating button in the second position allows the first locking member to be moved out of the first locking groove, thus achieving ratchet head disassembly.

[0007] Furthermore, the operation button is rotatably connected to the main body, and the operation button rotates relative to the main body to switch between a first position and a second position. Using the above technical solution, switching between the first and second positions is achieved through a rotational motion, making operation simple.

[0008] Furthermore, the ratchet head is provided with a locking pin that enables the operation button to rotate and connect with the ratchet head, and the locking pin is detachably mounted on the ratchet head.

[0009] Furthermore, the ratchet head includes a connecting end for mounting a sleeve, the sleeve being detachably mounted on the connecting end. The operating button in the first and second positions can slide to release the lock between the sleeve and the connecting end. Using this technical solution, since the ratchet head is locked when the operating button is in the first position, the sleeve can be disassembled independently, simplifying the sleeve replacement process, improving work efficiency, and effectively preventing the ratchet head from loosening, thus enhancing safety. Furthermore, when the operating button is in the second position, the ratchet head and sleeve can be disassembled simultaneously, allowing users to replace the ratchet head and sleeve according to their needs, making replacement more convenient. Finally, the action of releasing the lock between the sleeve and the connecting end by sliding the operating button is clearly different from the action of rotating the operating button to switch between the first and second positions, effectively preventing user misoperation.

[0010] Furthermore, the connecting end is provided with a channel along the axial direction of the ratchet head and communicating with the receiving cavity. One end of the locking pin is slidably connected to the channel. A second locking member is provided between the connecting end and the locking pin. The second locking member is used for locking and disassembling the sleeve and the connecting end. The connecting end is provided with a second through hole to accommodate the second locking member. The locking pin is provided with a third groove communicating with the second through hole. The sleeve is provided with a second locking groove corresponding to the third groove. The third groove is provided with third abutting surfaces of different depths along the axial direction of the locking pin for abutting the second locking member. The operation button drives the locking pin to move axially so that the second locking member pushes into or moves out of the second locking groove. By adopting the above technical solution, the locking and disassembling of the sleeve is realized by moving the second locking member by the axial movement of the operation button, making replacement more convenient.

[0011] Furthermore, the other end of the locking pin is slidably disposed within the receiving cavity and rotatably connected to the operating button. The length of the first groove in the axial direction of the operating button is greater than the length of the first locking member in the axial direction of the operating button, so that when the operating button is in the first position, the operating button slides relative to the body, causing the locking pin to drive the second locking member into or out of the second locking groove. By adopting the above technical solution, by setting the length of the first groove in the axial direction of the operating button to be greater than the length of the first locking member in the axial direction of the operating button, space is provided for the first locking member to move within the first groove, thereby enabling the second locking member to enter or exit the second locking groove, and achieving independent disassembly of the sleeve.

[0012] Furthermore, a reset member is provided between the operation button and the body, which tends to keep the operation button in the position protruding from the opening of the receiving cavity. When the operation button is in the position protruding from the opening of the receiving cavity, the first locking member is engaged in the first locking groove. Using the above technical solution, the reset member tends to keep the operation button in the position protruding from the opening of the receiving cavity, facilitating the locking state after replacing the sleeve and / or ratchet head, and effectively preventing the sleeve and ratchet head from loosening.

[0013] Furthermore, one end of the reset component abuts against the operation button, and the other end abuts against the inner wall of the receiving cavity. The elasticity of the reset component tends to keep the operation button in the position protruding from the opening of the receiving cavity. The ratchet head is provided with a limiting rib, and the ratchet teeth are provided with a limiting surface. The limiting rib abuts against the limiting surface when the operation button is in the position protruding from the opening of the receiving cavity. By adopting the above technical solution and using an elastic reset component, it is convenient for the user to achieve axial movement of the operation button by squeezing the reset component, and for the sleeve and / or ratchet head to automatically be locked after replacement. Furthermore, by setting the limiting rib and limiting surface, the amount of protrusion of the operation button when it is in the position protruding from the opening of the receiving cavity is effectively limited, ensuring the installation reliability of the operation button.

[0014] Another object of the present invention is to provide a ratchet wrench, comprising a wrench body, characterized in that the ratchet wrench assembly of the above-described technical solution is connected to the wrench body. By adopting the above technical solution, the replacement of the ratchet head and socket is more convenient, which is beneficial to improving work efficiency. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings:

[0016] Figure 1 This is a cross-sectional view of the ratchet wrench assembly of Embodiment 1 of the present invention (the sleeve and ratchet head in the first position are in a locked state);

[0017] Figure 2 This is a cross-sectional view of the ratchet wrench assembly in Embodiment 1 of the present invention (the ratchet head in the first position is in a locked state, and the sleeve is in a disassembled state).

[0018] Figure 3 This is a cross-sectional view of the ratchet wrench assembly of Embodiment 1 of the present invention (the socket and ratchet head in the second position are in a locked state);

[0019] Figure 4 This is a cross-sectional view of the ratchet wrench assembly of Embodiment 1 of the present invention (the socket and ratchet head in the second position are in a disassembled state);

[0020] Figure 5 This is an exploded view of the ratchet wrench assembly of Embodiment 1 of the present invention;

[0021] Figure 6 This is a schematic diagram of the operation button in Embodiment 1 of the present invention;

[0022] Figure 7 These are schematic diagrams of different ratchet heads in Embodiment 1 of the present invention;

[0023] Figure 8 This is a cross-sectional view of the ratchet wrench in Embodiment 2 of the present invention (the socket and ratchet head in the second position are in a locked state);

[0024] Figure 9 This is a cross-sectional view of the ratchet wrench in Embodiment 2 of the present invention (the socket and ratchet head in the second position are in a disassembled state);

[0025] Figure 10 This is a cross-sectional view of the ratchet wrench in Embodiment 2 of the present invention (the ratchet head in the first position is in a locked state, and the socket is in a disassembled state);

[0026] In the diagram, 1. lever body; 11. receiving cavity; 2. ratchet tooth; 21. mounting cavity; 22. first locking groove; 23. limiting surface; 3. ratchet head; 31. body; 311. first through hole; 32. operation button; 321. first groove; 322. second groove; 3221. first abutting section; 3222. second abutting section; 33. receiving cavity; 331. opening; 34. connecting end; 341. channel; 342. second through hole; 35. reset component; 36. locking pin; 361. third groove; 37. first locking component; 38. second locking component; 39. limiting rib; 4. sleeve; 41. second locking groove. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0028] The terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the invention described herein can be implemented in sequences other than those illustrated or described herein.

[0029] It should be understood that in the various embodiments of the present invention, the number of each process does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0030] It should be understood that in this invention, "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0031] It should be understood that in this invention, "multiple" refers to two or more. "And / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, X and / or Y can represent: X alone, X and Y simultaneously, or Y alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "Contains X, Y, and Z", "Contains X, Y, and Z" means that all three X, Y, and Z are contained; "Contains X, Y, or Z" means that one of X, Y, and Z is contained; "Contains X, Y, and / or Z" means that any one, two, or three of X, Y, and Z are contained.

[0032] The technical solution of the present invention will be described in detail below with reference to specific embodiments. The following specific embodiments may be combined or substituted with each other according to the actual situation, and the same or similar concepts or processes may not be described again in some embodiments.

[0033] Example 1:

[0034] like Figures 1 to 7 As shown, the present invention provides a ratchet wrench assembly, including ratchet teeth 2 and a ratchet head 3 detachably mounted on the ratchet teeth 2. The ratchet head 3 includes a body 31 and an operation button 32. The body 31 has a receiving cavity 33 for assembling the operation button 32. A first locking member 37 is provided between the operation button 32 and the body 31. The body 31 has a first through hole 311 for receiving the first locking member 37. The ratchet teeth 2 have a first locking groove 22 corresponding to the first through hole 311. The operation button 32 has a first groove 321 and a second groove 322 of different depths for abutting the first locking member 37. The operation button 32 has a first position in which the first groove 321 abuts the first locking member 37 to hold the first locking member 37 in a first position that is not removable and is inserted into the first locking groove 22, and a second position in which the second groove 322 abuts the first locking member 37 to hold the first locking member 37 in a second position that is removable and is held in the first locking groove 22.

[0035] The operation button 32 has a first groove 321 and a second groove 322 of different depths for abutting against the first locking member 37. When the operation button 32 is in the first position, the first locking member 37 is fixedly inserted into the first locking groove 22 and the ratchet head 3 is locked, which effectively prevents the ratchet head 3 from loosening and improves the safety of use. When the operation button 32 is in the second position, the first locking member 37 is removable and is fixed in the first locking groove 22, and the ratchet head 3 can be disassembled, so that the user can replace the ratchet head 3 according to the needs, making replacement more convenient. Specifically, the first groove 321 has a first abutting surface of equal depth along the axial direction of the ratchet head 3 for abutting the first locking member 37. When the operation button 32 slides along the axial direction of the ratchet head 3, the first locking member 37 is always pushed into the first locking groove 22, effectively preventing the ratchet head 3 from loosening. The second groove 322 has a second abutting surface of different depth along the axial direction of the ratchet head 3 for abutting the first locking member 37. When the operation button 32 slides along the axial direction, the first locking member 37 pushes into or moves out of the second locking groove 41, realizing the disassembly of the ratchet head 3.

[0036] It should be noted that the axial direction of ratchet head 3 is as follows: Figure 1 As shown on the axis.

[0037] The second abutting surface, along the axial direction of the ratchet head 3, includes a first abutting section 3221 and abutting section 3222. The depth of the first abutting section 3221 is greater than the depth of the second abutting section 3222. A first locking member 37 abuts against the first abutting section 3221 and the second abutting section 3222 of the first and second abutting surfaces by gravity. The first locking member 37 is provided in one configuration. When the first locking member 37 is in the second abutting section 3222, it is inserted into the first locking groove 22, locking the ratchet head 3. When the first locking member 37 is in the first abutting section 3221, it moves out of the first locking groove 22, unlocking the ratchet head 3. When the user switches the operation button 32 to the second position, as the operation button 32 slides axially, the first locking member 37 moves from the second abutting section 3222 to the first abutting section 3221, and moves out of the first locking groove 22, thus disassembling the ratchet head 3.

[0038] Understandably, the first locking element 37 can be provided in appropriate quantities such as two, three, or four.

[0039] To prevent the sleeve 4 and the ratchet head 3 from becoming loose, a reset member 35 is provided between the operation button 32 and the body 31, which tends to keep the operation button 32 in the position protruding from the opening 331 of the receiving cavity 33. When the operation button 32 is in the position protruding from the opening 331 of the receiving cavity 33, the first locking member 37 is pushed into the first locking groove 22, which makes it easy to keep the ratchet head 3 locked after replacement, effectively preventing the ratchet head 3 from becoming loose.

[0040] Specifically, one end of the reset member 35 abuts against the operation button 32, and the other end of the reset member 35 abuts against the inner wall of the receiving cavity 33. The elasticity of the reset member 35 makes the operation button 32 tend to remain in the position protruding from the opening 331 of the receiving cavity 33, so that the user can realize the axial movement of the operation button 32 by squeezing the reset member 35, and automatically lock it after the ratchet head 3 is replaced.

[0041] Understandably, the reset component 35 can be a suitable structure such as a spring.

[0042] Furthermore, the ratchet head 3 is provided with a limiting rib 39, and the ratchet tooth 2 is provided with a limiting surface 23. When the operation button 32 is in the position protruding from the opening 331 of the receiving cavity 33, the limiting rib 39 abuts against the limiting surface 23, effectively limiting the amount of protrusion of the operation button 32 when it is in the position protruding from the opening 331 of the receiving cavity 33, thus ensuring the installation reliability of the operation button 32.

[0043] For easy disassembly, the operation button 32 is rotatably connected to the main body 31. The operation button 32 rotates relative to the main body 31 to switch between a first position and a second position. Switching between the first and second positions is achieved through rotation, making operation simple.

[0044] Specifically, the ratchet head 3 is provided with a locking pin 36 that enables the operation button 32 to be rotated and connected to the ratchet head 3. The locking pin 36 can be detachably installed on the ratchet head 3.

[0045] To facilitate the disassembly of the sleeve 4, the ratchet head 3 includes a connecting end 34 for mounting the sleeve 4. The sleeve 4 is detachably mounted on the connecting end 34. The operation button 32, in the first and second positions, can slide to release the lock between the sleeve 4 and the connecting end 34. Since the ratchet head 3 is locked when the operation button 32 is in the first position, the sleeve 4 can be disassembled independently, simplifying the replacement of the sleeve 4, improving work efficiency, and effectively preventing the ratchet head 3 from loosening, thus enhancing safety. Furthermore, when the operation button 32 is in the second position, the ratchet head 3 and the sleeve 4 can be disassembled simultaneously, allowing the user to replace the ratchet head 3 and the sleeve 4 according to their needs, making replacement more convenient. Finally, the action of releasing the lock between the sleeve 4 and the connecting end 34 by sliding the operation button is clearly different from the action of rotating the operation button 32 to switch between the first and second positions, effectively preventing user misoperation.

[0046] Specifically, the connecting end 34 is provided with a channel 341 that is arranged along the axial direction of the ratchet head 3 and communicates with the receiving cavity 33. One end of the locking pin 36 is slidably connected in the channel 341. A second locking member 38 is provided between the connecting end 34 and the locking pin 36. The second locking member 38 is used for locking and disassembling between the sleeve 4 and the connecting end 34. The connecting end 34 is provided with a second through hole 342 that accommodates the second locking member 38. The locking pin 36 is provided with a third groove 361 that communicates with the second through hole 342. The sleeve 4 is provided with a second locking groove 41 that corresponds to the third groove 361. The third groove 361 is provided with a third abutting surface of different depths along the axial direction of the locking pin 36 for abutting the second locking member 38. The operating button 32 drives the locking pin 36 to move axially so that the second locking member 38 pushes into or moves out of the second locking groove 41, thereby realizing the locking and disassembly of the sleeve 4 and making replacement more convenient.

[0047] To facilitate the disassembly of the sleeve 4, the other end of the locking pin 36 is slidably disposed in the receiving cavity 33 and rotates and engages with the operation button 32. The length of the first groove 321 in the axial direction of the operation button 32 is greater than the length of the first locking member 37 in the axial direction of the operation button 32, so that when the operation button 32 is in the first position, space is provided for the first locking member 37 to move in the first groove 321. The operation button 32 slides relative to the body 31 so that the locking pin 36 drives the second locking member 38 to push into or move out of the second locking groove 41, thereby realizing the individual disassembly of the sleeve 4.

[0048] It should be noted that the first locking element 37 and the second locking element 38 can be steel balls. Of course, in other embodiments, suitable structures such as locking pins and locking blocks can also be used.

[0049] Example 2:

[0050] like Figures 8 to 10 As shown, this embodiment provides a ratchet wrench, including a wrench body 1. The ratchet wrench assembly of the above embodiment is connected to the wrench body 1. The wrench body 1 has a receiving cavity 11 and a cover plate. The ratchet teeth 2 are rotatably disposed in the receiving cavity 11 and are clamped and fixed by the cover plate and the inner wall of the receiving cavity 11. This makes the replacement of the ratchet head 3 and the socket 4 more convenient and helps to improve work efficiency.

[0051] In addition to the preferred embodiments described above, the present invention has other embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection claimed by the present invention.

Claims

1. A ratchet wrench assembly comprising a ratchet tooth and a ratchet head removably mounted on the ratchet tooth, characterized in that: The ratchet head comprises a body and an operation button, the body is provided with a containing cavity for assembling the operation button, a first locking member is arranged between the operation button and the body, the body is provided with a first through hole containing the first locking member, the ratchet tooth is provided with a first locking groove corresponding to the first through hole, the operation button is provided with a first groove and a second groove with different depths for abutting against the first locking member, the operation button has a first position in which the first groove abuts against the first locking member to keep the first locking member in the first locking groove in a non-removable manner and a second position in which the second groove abuts against the first locking member to keep the first locking member in the first locking groove in a removable manner, the first groove is provided with a first abutting surface with equal depth in the axial direction of the ratchet head for abutting against the first locking member, when the operation button slides in the axial direction of the ratchet head, the first locking member is always pushed into the first locking groove, the second groove is provided with a second abutting surface with different depths in the axial direction of the ratchet head for abutting against the first locking member, when the operation button slides in the axial direction, the first locking member is pushed into or removed from the first locking groove, the operation button is rotatably connected to the body, the operation button is rotated relative to the body to switch between the first position and the second position, the ratchet head is provided with a locking pin which can realize the rotating connection between the operation button and the ratchet head, the ratchet head comprises a connecting end for mounting a sleeve, the sleeve is detachably mounted on the connecting end, and the operation button in the first position and the second position can be slidably unlocked between the sleeve and the connecting end.

2. The ratchet wrench assembly of claim 1, wherein, The locking pin is detachably mounted on the ratchet head.

3. The ratchet wrench assembly of claim 1, wherein, The connecting end is provided with a channel arranged in the axial direction of the ratchet head and communicating with the containing cavity, one end of the locking pin is slidably connected in the channel, a second locking member is arranged between the connecting end and the locking pin, the second locking member is used for locking and detaching between the sleeve and the connecting end, the connecting end is provided with a second through hole containing the second locking member, the locking pin is provided with a third groove communicating with the second through hole, the sleeve is provided with a second locking groove corresponding to the third groove, the third groove is provided with a third abutting surface with different depths in the axial direction of the locking pin for abutting against the second locking member, the operation button drives the locking pin to move axially to make the second locking member push into or remove from the second locking groove.

4. The ratchet wrench assembly of claim 3, wherein, The other end of the locking pin is slidably arranged in the containing cavity and rotatably connected with the operation button, the length of the first groove in the axial direction of the operation button is greater than the length of the first locking member in the axial direction of the operation button, so that when the operation button is in the first position, the operation button is slid relative to the body to make the locking pin drive the second locking member to push into or remove from the second locking groove.

5. The ratchet wrench assembly of any one of claims 1 to 4, wherein, The operation button and the body are provided with a reset member which makes the operation button have a tendency to be kept in an open position protruding out of the containing cavity, when the operation button is in the open position protruding out of the containing cavity, the first locking member is pushed into the first locking groove.

6. The ratchet wrench assembly of claim 5, wherein, One end of the reset member abuts against the operation button, the other end of the reset member abuts against the inner wall of the containing cavity, the elastic force of the reset member makes the operation button have a tendency to be kept in the open position protruding out of the containing cavity; and the ratchet head is provided with a limiting rib and the ratchet tooth is provided with a limiting surface, the limiting rib abuts against the limiting surface when the operation button is in the open position protruding out of the containing cavity.

7. A ratchet wrench comprising a wrench body, characterized in that The ratchet wrench assembly of any one of claims 1-6 is connected to the handle body.

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