Handle for a hand tool and hand tool

Abstract

The handle of the manual tool comprises a first handle body and a second handle body, a sliding cavity is formed in the first handle body, the second handle body is partially accommodated in the sliding cavity and can slide in the sliding cavity, so that the second handle body can be elongated or contracted relative to the first handle body. The handle of the manual tool provided by the application can realize the adjustment of the length of the handle through the telescopic sliding between the first handle body and the second handle body, improve the flexibility of the manual tool, and meet the requirements of different working environments. Moreover, the manual tool provided by the application can adjust the length of the handle and the length of the tool rod extending out of the handle, realize the secondary adjustment of the length of the manual tool, adapt to more use scenarios, and be more flexible in use.

Description

Technical Field

[0001] This invention relates to the field of hand tools, and in particular to a handle for a hand tool and a hand tool. Background Technology

[0002] In engineering operations, hand tools are frequently used. Traditional hand tool handles only serve the function of making it easier for users to hold them. However, when using hand tools, problems such as limited working space often arise. In some usage scenarios, it is necessary to adjust the length of the hand tool handle to increase the flexibility of the hand tool during use and meet the needs of different working environments. Summary of the Invention

[0003] In view of this, it is necessary to provide a handle for a hand tool and a hand tool.

[0004] The present invention provides a handle for a hand tool, including a first handle body and a second handle body. The first handle body has a sliding cavity, and the second handle body is partially housed in the sliding cavity and can slide within the sliding cavity, so that the second handle body can extend or retract relative to the first handle body.

[0005] In one embodiment of the present invention, a sliding track is provided on one of the inner wall of the first handle and the outer wall of the second handle, and a sliding protrusion is provided on the other. The sliding protrusion can slide along the sliding track, so that the second handle extends or contracts relative to the first handle.

[0006] In one embodiment of the present invention, the handle further includes a first limiting component, the first limiting component including a first limiting member and a first elastic member, the first limiting member and the first elastic member being disposed on the second handle body, a gap being provided between the first handle body and the second handle body, the first limiting member being able to be received in the gap, so that the second handle body can slide within the first handle body;

[0007] When the first handle and the second handle are at their elongation limit positions, the first limiting member can extend out of the gap and abut against the first handle under the action of the first elastic member, thus restricting the second handle from moving towards the first handle.

[0008] In one embodiment of the present invention, the first handle has a notch at one end relatively close to the second handle. When the first handle and the second handle are at their elongation limit positions, the first limiting member abuts against the peripheral wall of the notch and restricts the second handle from moving closer to the first handle; and / or,

[0009] The second handle has a first receiving groove at one end relatively close to the first handle. The first elastic member and part of the first limiting member are received in the first receiving groove, and the first elastic member can apply elastic force to the first limiting member, so that the first limiting member extends out of the gap and abuts against the first handle.

[0010] In one embodiment of the present invention, a first limiting groove is further provided on the inner wall of the sliding cavity. The first limiting groove is located at one end of the sliding cavity that is relatively far away from the second handle. When the first handle and the second handle are at the contraction limit position, the first limiting member can abut against the peripheral wall of the first limiting groove under the action of the first elastic member, and restrict the second handle from moving away from the first handle.

[0011] In one embodiment of the present invention, the inner wall of the first handle forms the sliding track, and the outer peripheral wall of the second handle extends outward to form the sliding protrusion, the sliding protrusion being able to slide within the sliding cavity and restricting rotation between the second handle and the first handle; and / or

[0012] The handle also includes a stop, which is installed at one end of the second handle that is relatively close to the first handle. An auxiliary slide rail is provided on the inner wall of the first handle. The auxiliary slide rail extends along the axial direction of the first handle and is connected to the sliding cavity. The stop can slide with the second handle in the sliding cavity, and when the first handle and the second handle are at their elongation limit positions, it abuts against the inner wall of the auxiliary slide rail and stops the second handle from continuing to move away from the first handle.

[0013] In one embodiment of the present invention, the sliding track is disposed on the outer wall of the second handle, and the sliding track is a spiral track; the second handle can rotate within the first handle and achieve extension or contraction with the first handle through the cooperation of the spiral track and the sliding protrusion.

[0014] In one embodiment of the present invention, the handle further includes a seat, an elastic abutment, a connecting rod and a drive ring. The seat is mounted on the end of the second handle that is relatively far away from the first handle. The seat can drive the second handle to rotate, and the second handle can drive the first handle to rotate.

[0015] The drive ring is fixedly connected to the connecting rod and can drive the connecting rod to rotate. The connecting rod is threadedly engaged with the seat and can move relative to the seat in the axial direction under the action of the thread. The first handle is sleeved on the connecting rod and can move axially relative to the second handle. The elastic abutment is located between the first handle and the second handle, and the first handle and the second handle can abut against the drive ring and the seat respectively under the action of the elastic abutment.

[0016] The present invention also provides a hand tool, including a tool handle and the aforementioned handle, wherein the handle further includes a base, the base being mounted on the end of the second handle that is relatively far from the first handle and capable of rotating with the second handle;

[0017] The tool rod has at least two sets of locking grooves, each set of locking grooves is opened on the outer peripheral wall of the tool rod in the radial direction, and the base body has a tool rod receiving cavity, in which part of the tool rod structure is received;

[0018] The handle also includes a second limiting component, which can engage with different locking slots to change the length of the tool lever extending out of the tool lever receiving cavity.

[0019] In one embodiment of the present invention, the second limiting component includes a drive seat, a retaining ring, a second elastic element, and a locking element. The drive seat, the retaining ring, and the second elastic element are all sleeved on one end of the seat body that is relatively far away from the second handle body. The retaining ring can prevent the drive seat from dislodging from the second handle body. One end of the second elastic element abuts against the drive seat, and the other end abuts against the seat body. The seat body is also provided with a locking hole, and the locking element is accommodated in the locking hole. The locking element can abut against the inner wall of the locking groove and prevent the tool rod from axially displacing in the seat body.

[0020] The drive seat is capable of moving axially along the seat body, causing the locking member to move away from the inner wall of the locking groove, and allowing the tool rod to move axially within the seat body and change the length extending out of the tool rod receiving cavity.

[0021] The handle of the hand tool provided by this invention can be adjusted in length by sliding between a first handle body and a second handle body, thereby improving the flexibility of the hand tool and meeting the needs of different working environments. Furthermore, the hand tool provided by this invention can adjust both the length of the handle and the length of the tool shaft extending from the handle, achieving secondary adjustment of the hand tool's length, adapting to more usage scenarios, and offering greater flexibility in use. Attached Figure Description

[0022] Figure 1This is a schematic diagram of the manual tool in the extended state according to the first embodiment of the present invention;

[0023] Figure 2 for Figure 1 The manual tool shown is shown in a cross-sectional view at section AA.

[0024] Figure 3 for Figure 1 The diagram shows the structure of the manual tool during retraction.

[0025] Figure 4 for Figure 3 The manual tool shown is shown in a cross-sectional view at section BB.

[0026] Figure 5 for Figure 3 The diagram shows a cross-sectional view of the manual tool at section CC.

[0027] Figure 6 for Figure 1 An exploded view of the hand tool shown;

[0028] Figure 7 This is an exploded view of the hand tool in the second embodiment of the present invention;

[0029] Figure 8 This is an exploded view of the hand tool in the third embodiment of the present invention;

[0030] Figure 9 This is a cross-sectional view of the manual tool in the fourth embodiment of the present invention.

[0031] 100. Handle; 101. Gap; 10. First handle body; 11. Sliding cavity; 111. First limiting groove; 12. Sliding rail; 13. Notch; 14. Auxiliary slide rail; 20. Second handle body; 21. First receiving groove; 22. Sliding protrusion; 30. Seat body; 31. Tool handle receiving cavity; 32. Locking hole; 33. First meshing tooth; 40. First limiting assembly; 41. First limiting member; 411. Button; 412. Mounting rod; 50. Second limiting assembly; 51. Drive seat; 511. Protruding ring; 52. Snap ring; 53. Second elastic member; 54. Locking member; 60. Stop member; 71. Elastic abutment member; 72. Connecting rod; 73. Drive ring; 200. Hand tool; 210. Tool handle; 211. Locking groove; Detailed Implementation

[0032] 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 a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] It should be noted that when a component is said to be "mounted on" another component, it can be directly mounted on the other component or may be interspersed with a component. When a component is said to be "set on" another component, it can be directly set on the other component or may be interspersed with a component. When a component is said to be "fixed to" another component, it can be directly fixed to the other component or may be interspersed with a component.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0035] Traditional hand tools often encounter problems such as limited working space when used. In some usage scenarios, it is necessary to adjust the length of the hand tool handle to increase the flexibility of the hand tool when used and meet the needs of different working environments.

[0036] Please see Figures 1 to 6 , Figure 1 This is a schematic diagram of the manual tool 200 in the extended state in the first embodiment of the present invention; Figure 2 for Figure 1 The manual tool 200 shown is shown in a cross-sectional view at section AA; Figure 3 for Figure 1 The diagram shows the structure of the manual tool 200 during retraction; Figure 4 for Figure 3 The manual tool 200 shown is shown in a cross-sectional view at section BB. Figure 5 for Figure 3 A cross-sectional view of the manual tool 200 at section CC. Figure 6 for Figure 1 An exploded view of the manual tool 200 shown.

[0037] This invention provides a handle 100 for supporting the tool handle 210 in a hand tool 200. In this embodiment, the hand tool handle 100 is used as a screwdriver handle, such as a Phillips head screwdriver, a flathead screwdriver, an internal hex screwdriver, or an external hex screwdriver. It is understood that in other embodiments, the handle 100 can also be used as a handle for other hand tools with long, rod-shaped tool handles, such as wrench handles, file handles, and test pen handles.

[0038] The handle 100 includes a first handle body 10, a second handle body 20, and a base body 30. The first handle body 10 has a sliding cavity 11. The second handle body 20 is partially housed in the sliding cavity 11 and can slide within the sliding cavity 11, so that the second handle body 20 can extend or retract relative to the first handle body 10.

[0039] The handle 100 provided by the present invention can adjust the length of the handle 100 by telescopic sliding between the first handle body 10 and the second handle body 20, thereby improving the flexibility of the manual tool 200 and meeting the needs of different working environments.

[0040] Please refer to it again. Figures 1 to 6 And see also Figure 7 , Figure 7 This is an exploded view of the hand tool 200 according to the second embodiment of the present invention. In at least one embodiment, a sliding track 12 is provided on one of the inner wall of the first handle 10 and the outer wall of the second handle 20, and a sliding protrusion 22 is provided on the other. The sliding protrusion 22 can slide along the sliding track 12, causing the second handle 20 to extend or retract relative to the first handle 10. With this configuration, the extension and retraction between the first handle 10 and the second handle 20 can be achieved through the sliding track 12 and the sliding protrusion 22. The cooperation structure of the sliding track 12 and the sliding protrusion 22 is simple, highly stable, easy to process and assemble, and not prone to failure. Using the sliding track 12 and the sliding protrusion 22 to guide the first handle 10 and the second handle 20 results in a smooth feel and a good user experience during extension and retraction.

[0041] In one embodiment, the handle 100 further includes a first limiting component 40, which includes a first limiting member 41 and a first elastic member (not shown). The first limiting member 41 and the first elastic member are disposed on the second handle 20. A gap 101 exists between the first handle 10 and the second handle 20. The first limiting member 41 can be received in the gap 101, allowing the second handle 20 to slide within the first handle 10. When the first handle 10 and the second handle 20 are at their extension limit positions, the first limiting member 41 can extend out of the gap 101 under the action of the first elastic member and abut against the first handle 10, restricting the second handle 20 from moving closer to the first handle 10. With this configuration, the first limiting component 40 ensures a relatively fixed extension limit position between the first handle 10 and the second handle 20, preventing the second handle 20 from retracting back into the first handle 10 during use and affecting its operation. Furthermore, the first elastic element is disposed in the first limiting component 40, and together with the sliding rail 12 and the sliding protrusion 22, the handle 100 can have a smooth telescopic feel and extend the service life of the first elastic element, thereby extending the service life of the handle 100.

[0042] Specifically, in this embodiment, the first handle 10 has a notch 13 at one end relatively close to the second handle 20. When the first handle 10 and the second handle 20 are at their extended limit positions, the first limiting member 41 abuts against the peripheral wall of the notch 13 and restricts the second handle 20 from moving closer to the first handle 10. With this configuration, the notch 13 provides space for the user to press the first limiting member 41, while its peripheral wall also acts as a stop for the first limiting member 41, thus achieving a multi-functional notch 13 and facilitating the miniaturization of the handle 100.

[0043] Furthermore, a first limiting groove 111 is provided on the inner wall of the sliding cavity 11, located at the end of the sliding cavity 11 that is relatively away from the second handle 20. When the first handle 10 and the second handle 20 are in the contraction limit position, the first limiting member 41 can abut against the peripheral wall of the first limiting groove 111 under the action of the first elastic member, and restrict the second handle 20 from moving away from the first handle 10. This arrangement ensures that when the second handle 20 is in the contraction limit position, the first handle 10 and the second handle 20 are also relatively fixed, preventing the second handle 20 from moving axially relative to the first handle 10.

[0044] Preferably, the peripheral wall of the first limiting groove 111 and / or the first limiting member 41 are provided with a guide portion (not labeled). When the user applies a force relatively away from the first handle 10 to the second handle 20, the first limiting member 41 can slide out of the first limiting groove 111 through the guide portion. The guide portion enables the first limiting groove 111 to both fix the first limiting member 41 and assist the first limiting member 41 to slide out of the first limiting groove 111.

[0045] In this embodiment, the second handle 20 has a first receiving groove 21 at one end relatively close to the first handle 10. The first elastic member and part of the first limiting member 41 are received in the first receiving groove 21, and the first elastic member can apply elastic force to the first limiting member 41, so that the first limiting member 41 extends out of the gap 101 and abuts against the first handle 10.

[0046] In this embodiment, the first limiting member 41 includes a button 411 and a mounting rod 412 fixedly connected to the button 411. The first elastic member and the mounting rod 412 are accommodated in the first receiving groove 21, and one end of the first elastic member abuts against the inner wall of the receiving groove, and the other end abuts against the mounting rod 412, so that the mounting rod 412 can drive the button 411 to pop out of the gap 101 and abut against the first handle 10.

[0047] To improve the installation stability of button 411, preferably, there are two mounting rods 412, which are located on both sides of button 411 respectively; button 411 and mounting rod 412 are integrally formed.

[0048] This application also provides a hand tool 200, including a tool handle 210 and the aforementioned handle 100. The tool handle 210 is mounted on a base 30 and can rotate with the base 30. The tool handle 210 has at least two sets of locking grooves 211, each set of locking grooves 211 being formed on the outer peripheral wall of the tool handle 210 in the radial direction. A tool handle receiving cavity 31 is formed inside the base 30, and part of the structure of the tool handle 210 is received in the tool handle receiving cavity 31. The handle 100 also includes a second limiting component 50, which can cooperate with different locking grooves 211 to change the length of the tool handle 210 extending out of the tool handle receiving cavity 31.

[0049] The manual tool 200 provided by the present invention can adjust both the length of the handle 100 and the length of the tool rod 210 extending from the handle 100, thereby achieving secondary adjustment of the length of the manual tool 200, adapting to more usage scenarios, and being more flexible in use.

[0050] In this embodiment, the second limiting component 50 includes a drive seat 51, a retaining ring 52, a second elastic member 53, and a locking member 54. The drive seat 51, the retaining ring 52, and the second elastic member 53 are all sleeved on the end of the seat body 30 that is relatively far away from the second handle 20. The retaining ring 52 can prevent the drive seat 51 from coming out of the second handle 20. One end of the second elastic member 53 abuts against the drive seat 51, and the other end abuts against the seat body 30. The seat body 30 is also provided with a locking hole 32. The locking member 54 is accommodated in the locking hole 32. The locking member 54 can abut against the inner wall of the locking groove 211 and stop the tool rod 210 from generating axial displacement in the seat body 30. The drive seat 51 can move axially along the seat body 30, so that the locking member 54 is far away from the inner wall of the locking groove 211, and the tool rod 210 can move axially in the seat body 30 and change the length of the tool rod extending out of the tool rod accommodating cavity 31. With this configuration, the tool rod 210 can be securely fixed in the tool rod receiving cavity 31 by the cooperation of the locking member 54 and the locking groove 211, and the length of the tool rod 210 extending out of the tool rod receiving cavity 31 can be changed and adjusted.

[0051] Specifically, the locking element 54 is a steel ball located in the locking hole 32, which locks the tool rod 210. A protruding ring 511 is provided on the inner wall of the drive seat 51 to abut the steel ball. When the steel ball abuts against the protruding ring 511, it locks the tool rod 210. When the drive seat 51 is pushed to disengage the steel ball from the protruding ring 511, the steel ball disengages from the protruding ring 511 and unlocks the tool rod 210. One side of the steel ball abuts against the drive seat 51, and the other side abuts against the seat body 30. The steel ball cannot detach from the inner wall of the seat body 30, preventing it from falling out when replacing the tool rod 210.

[0052] In one embodiment, a first meshing tooth 33 is provided on the outer peripheral wall of the base 30, and a second meshing tooth (not shown) is provided on the inner wall of the second handle 20. The first meshing tooth 33 can mesh with the second meshing tooth, thereby allowing the base 30 to rotate with the second handle 20 and drive the tool rod 210 to rotate. This arrangement facilitates installation between the second handle 20 and the base 30, and provides a large transmission torque between them. It is understood that in other embodiments, the base 30 and the second handle 20 can also be connected by snap-fit, adhesive bonding, or other methods, as long as the second handle 20 can drive the base 30 to rotate.

[0053] Please refer to it again. Figures 1 to 6To increase the contact area between the sliding track 12 and the sliding protrusion 22, in one embodiment, the inner wall of the first handle 10 forms the sliding track 12, and the outer peripheral wall of the second handle 20 extends outward to form the sliding protrusion 22. The sliding protrusion 22 can slide within the sliding cavity 11 and restrict the rotation between the second handle 20 and the first handle 10. It is understood that in other embodiments, the sliding protrusion 22 may also be provided on the inner wall of the first handle 10, and the outer peripheral wall of the second handle 20 may form the sliding track 12.

[0054] Specifically, in this embodiment, the inner wall of the first handle 10 forms a sliding track 12 with a hexagonal cross-section, which is also known as a sliding cavity 11. A portion of the outer peripheral wall of the second handle 20 extends outward, forming a sliding protrusion 22 with a hexagonal outer wall cross-section. This allows the outer wall of the second handle 20 to slide along the axial direction within the inner wall of the first handle 10. When the first handle 10 rotates, it drives the second handle 20 to rotate, which in turn drives the base 30 to rotate, which in turn drives the tool rod 210 to rotate. This configuration simplifies the processing of the sliding protrusion 22 and the sliding track 12, saving production costs. Furthermore, the large contact area between the sliding protrusion 22 and the sliding track 12 provides good stability during sliding. It is understood that in other embodiments, the cross-sections of the sliding track 12 and the sliding protrusion 22 can also be other shapes, such as rectangles, pentagons, octagons, etc., as long as the sliding track 12 and the sliding protrusion 22 can move relative to each other along the axial direction, and the first handle 10 can drive the second handle 20 to rotate.

[0055] In one embodiment, the handle 100 further includes a stop 60, which is installed at the end of the second handle 20 that is relatively close to the first handle 10. An auxiliary slide rail 14 is provided on the inner wall of the first handle 10, extending axially along the first handle 10 and communicating with the sliding cavity 11. The stop 60 can slide with the second handle 20 within the sliding cavity 11, and when the first handle 10 and the second handle 20 are at their extension limit positions, it abuts against the inner wall of the auxiliary slide rail 14 and prevents the second handle 20 from continuing to move away from the first handle 10. This configuration not only further prevents relative rotation between the first handle 10 and the second handle 20, resulting in a better user experience, but also ensures that the first handle 10 and the second handle 20 have relatively defined extension limit positions, preventing the second handle 20 from detaching from the first handle 10 during use. It is understood that in other embodiments, the stop member 60 may only serve as a stop, and does not necessarily have to serve as both a stop and a rotation stop.

[0056] The present invention also provides a second embodiment, which is substantially the same as the first embodiment, except that the sliding protrusion 22 and the sliding track 12 are set in a different way.

[0057] Please refer to it again. Figure 7 To avoid the unpleasant feel caused by the sliding protrusion 22 on the outer wall of the second handle 20 extending from the first handle 10, in this embodiment, a sliding track 12 is provided on the outer wall of the second handle 20, and the sliding track 12 is a spiral track. The second handle 20 can rotate within the first handle 10 and achieve extension or retraction with the first handle 10 through the cooperation of the spiral track and the sliding protrusion 22. This design avoids protrusions on the outer wall of the second handle 20 that would affect the user's feel when turning, and also allows for a larger relative displacement between the first handle 10 and the second handle 20.

[0058] Please refer to the following: Figure 8 , Figure 8 This is an exploded view of the manual tool 200 in the third embodiment of the present invention.

[0059] The present invention also provides a third embodiment, which is substantially the same as the first embodiment, except that the second handle 20 is extended or retracted relative to the first handle 10.

[0060] In this embodiment, the handle 100 includes an elastic abutment 71, a connecting rod 72, and a drive ring 73. The seat 30 is installed at the end of the second handle 20 that is relatively far away from the first handle 10. The seat 30 can drive the second handle 20 to rotate, and the second handle 20 can drive the first handle 10 to rotate. The drive ring 73 is fixedly connected to the connecting rod 72 and can drive the connecting rod 72 to rotate. The connecting rod 72 is threadedly engaged with the seat 30 and can move relative to the first handle 20 in the axial direction under the action of the thread. The first handle 10 is fitted with the connecting rod 72 and can move axially relative to the second handle 20. The elastic abutment 71 is located between the first handle 10 and the second handle 20. The first handle 10 and the second handle 20 can abut against the drive ring 73 and the seat 30 respectively under the action of the elastic abutment 71.

[0061] With this configuration, the extension and retraction of the first handle 10 and the second handle 20 are achieved through a threaded connection, which improves reliability and makes the operation more stable.

[0062] Please refer to the following: Figure 9 , Figure 9 This is a cross-sectional view of the manual tool 200 in the fourth embodiment of the present invention.

[0063] The present invention also provides a fourth embodiment, which is largely the same as the first embodiment, except that in the fourth embodiment, the manual tool handle 100 is a ratchet screwdriver handle 100. The ratchet screwdriver can drive the tool lever 210 to rotate when rotating in one direction, and can idle when rotating in another direction, and can change the direction of rotation.

[0064] The handle 100 provided by this invention can adjust its length through telescopic sliding between the first handle body 10 and the second handle body 20, improving the flexibility of the hand tool 200 and meeting the needs of different working environments. Furthermore, the hand tool 200 provided by this invention can adjust both the length of the handle 100 and the length of the tool handle 210 extending beyond the handle 100, achieving secondary adjustment of the hand tool 200's length, adapting to more usage scenarios, and offering greater flexibility in use.

[0065] The technical features of the above-described embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0066] Those skilled in the art should recognize that the above embodiments are merely illustrative of the present invention and are not intended to limit the present invention. Any appropriate changes and variations made to the above embodiments within the essential spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A handle for a hand tool, used to support a tool handle (210) in the hand tool, said tool handle (210) having at least two sets of locking grooves (211), each set of said locking grooves (211) being formed on the outer peripheral wall of said tool handle (210) in the radial direction, characterized in that, It includes a first handle (10) and a second handle (20). The first handle (10) has a sliding cavity (11) inside. The second handle (20) is partially housed in the sliding cavity (11) and can slide in the sliding cavity (11), so that the second handle (20) can extend or retract relative to the first handle (10). The handle (100) also includes a seat (30), an elastic abutment (71), a connecting rod (72), and a drive ring (73). The seat (30) is installed at the end of the second handle (20) that is relatively far away from the first handle (10). The seat (30) can drive the second handle (20) to rotate, and the second handle (20) can drive the first handle (10) to rotate. The drive ring (73) is fixedly connected to the connecting rod (72) and can drive the connecting rod (72) to rotate. The connecting rod (72) is threadedly engaged with the seat (30) and can move relative to the connecting rod in the axial direction under the action of the thread. The first handle (10) is sleeved on the connecting rod (72) and can move axially relative to the second handle (20). The elastic abutment (71) is located between the first handle (10) and the second handle (20). The first handle (10) and the second handle (20) can abut against the drive ring (73) and the seat (30) respectively under the action of the elastic abutment (71). The base (30) has a tool rod receiving cavity (31) inside, and part of the structure of the tool rod (210) is housed in the tool rod receiving cavity (31); The handle (100) also includes a second limiting component (50) which can engage with different locking slots (211) to change the length of the tool lever (210) extending out of the tool lever receiving cavity (31).

2. The handle of the hand tool according to claim 1, characterized in that, A sliding track (12) is provided on one of the inner wall of the first handle (10) and the outer wall of the second handle (20), and a sliding protrusion (22) is provided on the other. The sliding protrusion (22) can slide along the sliding track (12) and cause the second handle (20) to extend or retract relative to the first handle (10).

3. The handle of the hand tool according to claim 2, characterized in that, The handle (100) further includes a first limiting component (40), which includes a first limiting member (41) and a first elastic member. The first limiting member (41) and the first elastic member are disposed on the second handle body (20). There is a gap (101) between the first handle body (10) and the second handle body (20). The first limiting member (41) can be received in the gap (101), so that the second handle body (20) can slide within the first handle body (10). When the first handle (10) and the second handle (20) are at their elongation limit positions, the first limiting member (41) can extend out of the gap (101) and abut against the first handle (10) under the action of the first elastic member, thus restricting the second handle (20) from moving towards the first handle (10).

4. The handle of the hand tool according to claim 3, characterized in that, The first handle (10) has a notch (13) at one end relatively close to the second handle (20). When the first handle (10) and the second handle (20) are at their elongation limit positions, the first limiting member (41) abuts against the peripheral wall of the notch (13) and restricts the second handle (20) from moving towards the first handle (10); and / or, The second handle (20) has a first receiving groove (21) at one end relatively close to the first handle (10). The first elastic member and part of the first limiting member (41) are received in the first receiving groove (21), and the first elastic member can apply elastic force to the first limiting member (41) so that the first limiting member (41) extends out of the gap (101) and abuts against the first handle (10).

5. The handle of the hand tool according to claim 3, characterized in that, The inner wall of the sliding cavity (11) is also provided with a first limiting groove (111), which is located at the end of the sliding cavity (11) that is relatively far away from the second handle (20). When the first handle (10) and the second handle (20) are in the contraction limit position, the first limiting member (41) can abut against the peripheral wall of the first limiting groove (111) under the action of the first elastic member, and restrict the second handle (20) from moving away from the first handle (10).

6. The handle of the hand tool according to claim 2, characterized in that, The inner wall of the first handle (10) forms the sliding track (12), and the outer peripheral wall of the second handle (20) extends outward to form the sliding protrusion (22). The sliding protrusion (22) can slide within the sliding cavity (11) and restricts the rotation between the second handle (20) and the first handle (10); and / or, The handle (100) further includes a stop (60), which is installed on one end of the second handle (20) that is relatively close to the first handle (10). An auxiliary slide rail (14) is provided on the inner wall of the first handle (10). The auxiliary slide rail (14) extends along the axial direction of the first handle (10) and is connected to the sliding cavity (11). The stop (60) can slide with the second handle (20) in the sliding cavity (11). When the first handle (10) and the second handle (20) are at the extension limit position, the stop (60) abuts against the inner wall of the auxiliary slide rail (14) and stops the second handle (20) from continuing to move away from the first handle (10).

7. The handle of the hand tool according to claim 2, characterized in that, The sliding track (12) is disposed on the outer wall of the second handle (20), and the sliding track (12) is a spiral track; the second handle (20) can rotate within the first handle (10) and achieve extension or contraction with the first handle (10) through the cooperation of the spiral track and the sliding protrusion (22).

8. A hand tool, characterized in that, Includes a tool lever (210) and a handle (100) as claimed in any one of claims 1 to 7. The tool rod (210) has at least two sets of locking grooves (211), each set of locking grooves (211) is opened on the outer peripheral wall of the tool rod (210) in the radial direction, and part of the structure of the tool rod (210) is accommodated in the tool rod accommodating cavity (31).

9. The hand tool according to claim 8, characterized in that, The second limiting component (50) includes a drive seat (51), a retaining ring (52), a second elastic element (53), and a locking element (54). The drive seat (51), the retaining ring (52), and the second elastic element (53) are all sleeved on the end of the seat body (30) that is relatively far away from the second handle body (20). The retaining ring (52) can prevent the drive seat (51) from coming out of the second handle body (20). One end of the second elastic element (53) abuts against the drive seat (51), and the other end abuts against the seat body (30). The seat body (30) is also provided with a locking hole (32). The locking element (54) is housed in the locking hole (32). The locking element (54) can abut against the inner wall of the locking groove (211) and stop the tool rod (210) from axially displacing in the seat body (30). The drive seat (51) is axially movable along the seat body (30), causing the locking member (54) to move away from the inner wall of the locking groove (211), and allowing the tool rod (210) to move axially in the seat body (30) and change the length extending out of the tool rod receiving cavity (31).

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