A drive handle

Abstract

The utility model provides a kind of driving handle, including driving head and the driving rod connected with driving head, rotatable driving part and switching reversing pawl of driving part turning are equipped on driving head, driving rod tail is equipped with function expansion structure.The utility model has function expansion structure, can expand, integrate more function, better cope with different application scenarios, can reduce tool type configuration, more easily carry out the management of tool storage, in addition, the utility model can swing force with higher frequency by the cooperation of driving part and reversing pawl, and reduce the restraint of operating space, more quickly and efficiently complete the disassembly and assembly operation of fastener.

Description

Technical Field

[0001] This utility model relates to a hand tool, and more specifically, to a drive handle. Background Technology

[0002] A drive handle is a commonly used force-applying tool. Existing drive handles have relatively limited functionality, often requiring users to configure a wider range of tools or auxiliary equipment to handle different application scenarios. For example, invention patent CN119369332A discloses a torque wrench that converts pressing pressure into rotational torque, driving the torque transmission unit to rotate, thereby rotating the wrench's operating body. However, this invention also suffers from the problem of limited functionality. Utility Model Content

[0003] Existing drive handles have limited functionality and are difficult to adapt to a wider range of applications. To overcome these shortcomings, this invention provides a drive handle that integrates more functions and can better address a wider range of applications.

[0004] The technical solution of this utility model is: a drive handle, including a drive head and a drive rod connected to the drive head. The drive head is provided with a rotatable drive component and a reversing pawl for switching the direction of the drive component. The tail of the drive rod is provided with a functional expansion structure. The drive component and the reversing pawl can realize torque output in different directions to meet the needs of tightening or loosening different parts; the functional expansion structure further increases the functionality of the drive handle, enabling it to cope with more application scenarios, improving the practicality and applicability of the drive handle, and avoiding the trouble of users configuring multiple single-function tools to cope with different scenarios.

[0005] Preferably, the drive component is a rotating body with ratchet teeth on its circumferential surface that mesh with the reversing pawl. Designing the drive component as a rotating body with ratchet teeth on its circumferential surface enables precise torque transmission. When the reversing pawl engages with the ratchet teeth, external force is effectively converted into torque output. Furthermore, the ratchet tooth design ensures stability and reliability during torque transmission, preventing slippage and ensuring that the drive handle can accurately apply the required torque during operation, meeting the precise torque requirements of different working scenarios.

[0006] Preferably, a handle is provided on one end face of the drive component. Providing a handle on one end face of the drive component allows the user to easily rotate the drive component by hand, offering a convenient manual driving method for operating the drive handle.

[0007] Preferably, the other end of the drive component has a bayonet on its outer peripheral surface, and the bayonet has a spring-loaded retainer for engaging the drive component onto the drive head. This bayonet design, along with the spring-loaded retainer, simplifies and facilitates the installation and removal of the drive component. When the drive component needs replacement or maintenance, the user can easily remove it from the drive head, while the spring-loaded retainer ensures a secure connection between the drive component and the drive head during normal use, preventing any loosening.

[0008] Preferably, the inner surface of the reversing pawl is arc-shaped and has grooves that engage with the ratchet teeth. The outer surface of the reversing pawl has two convex surfaces and one concave surface. The convex surfaces are located at both ends of the outer surface of the reversing pawl, and the concave surface is located between the two convex surfaces. The arc-shaped inner surface of the reversing pawl with grooves that engage with the ratchet teeth allows it to mesh with the ratchet teeth on the circumference of the drive component, ensuring stability and reliability when switching torque directions. The two convex surfaces and one concave surface on the outer surface, with the convex surfaces at both ends and the concave surface in the middle, provide the user with an intuitive and convenient operating area. By pressing the convex and concave surfaces, the position of the reversing pawl can be easily changed, thereby switching the direction of the drive component to meet the torque requirements in the clockwise or counterclockwise direction. The operation is simple and intuitive, improving the adaptability of the drive handle in different working scenarios.

[0009] Preferably, the drive head has a central hole, within which the drive component is fitted. A pawl mounting groove is provided on the inner wall of the central hole, and the reversing pawl is installed within this groove. This design, with the central hole in the drive head and the drive component fitted within it, provides stable support and rotational space for the drive component, ensuring smooth rotation within the drive head and effective torque transmission. Simultaneously, the pawl mounting groove on the inner wall of the central hole, and the installation of the reversing pawl within it, ensures precise positioning of the reversing pawl and a tighter fit with the drive component, further guaranteeing the smooth operation of the torque direction switching function.

[0010] Preferably, the functional expansion structure includes a storage hole. The storage hole provides users with a convenient storage space for small items. Users can store small parts related to operation, such as screws, nuts, and nails, in the storage hole for easy access during work, avoiding wasted time searching for these small parts and improving work efficiency.

[0011] Alternatively, the functional expansion structure also includes a torque transmission port. The torque transmission port further expands the functionality of the drive handle. It can connect to various types of tool heads, such as sockets and screwdriver bits, allowing the drive handle to adapt to a variety of different work scenarios and task requirements. By changing different tool heads, the drive handle can perform multiple functions such as tightening screws and loosening nuts, greatly enhancing its versatility and reducing the cost for users to purchase multiple specialized tools to complete different tasks.

[0012] Alternatively, the functional extension structure also includes a ring that is rotatably connected to the drive rod. The ring provides greater convenience for carrying and using the drive rod.

[0013] Preferably, the drive head and drive rod are integrally molded. This integral molding eliminates any gaps between the two, making the drive handle a single, unified structure. This design significantly improves the overall strength and rigidity of the drive handle, extending its service life.

[0014] The beneficial effects of this utility model are:

[0015] It has more functions, making it easier to cope with different application scenarios. This utility model has a functional expansion structure, which can be expanded and integrated with more functions to better cope with different application scenarios.

[0016] Facilitates tool management. This invention integrates multiple functions, reducing the variety of tools required and making tool management and storage easier.

[0017] Easy to use. This invention, through the cooperation of the drive component and the reversing pawl, can swing and apply force at a higher frequency, and reduce the constraints of operating space, thus completing the disassembly and assembly of fasteners more quickly and efficiently. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of one structure of the present utility model.

[0019] Figure 2 This is a schematic diagram of the structure on the back of the present invention.

[0020] Figure 3 This is the front view of the present invention.

[0021] Figure 4 This is a cross-sectional view of the present invention.

[0022] Figure 5 This is a schematic diagram of one structure of the present invention after the driving component is removed.

[0023] Figure 6 This is a schematic diagram of a possible assembly structure of the drive component, reversing pawl, and toggle switch in this utility model.

[0024] In the diagram, 1-drive head, 2-drive rod, 3-drive component, 4-reversing pawl, 5-bayonet, 6-elastic retainer, 7-center hole, 8-pawl mounting slot, 9-storage hole, 10-torque transmission port, 11-ring buckle, 12-handle, 13-toggle mounting hole, 14-toggle, 15-annular step, 16-ratchet. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0026] Example 1:

[0027] like Figures 1 to 6 As shown, a drive handle includes a drive head 1 and a drive rod 2. The drive head 1 is connected to the front end of the drive rod 2, and the drive head 1 and drive rod 2 are integrally formed. The drive head 1 has a central hole 7, a drive component 3, and a reversing pawl 4. The drive component 3 is a rotating body, and its circumferential surface has ratchet teeth 16, which mesh with the reversing pawl 4. The drive component 3 is adapted to be embedded in the central hole 7 and can rotate within the central hole 7. The inner wall of the central hole 7 has a pawl mounting groove 8, and the reversing pawl 4 is installed in the pawl mounting groove 8. The reversing pawl 4 is used to switch the direction of the drive component 3, so that the drive component 3 can perform unidirectional transmission as needed. A handle 12 is provided on one end face of the drive component 3. The handle 12 is integrally formed with the drive component 3 and is cup-shaped. A bayonet 5 is provided on the outer circumferential surface of the other end of the drive component 3. The bayonet 5 has an elastic locking member 6 that engages the drive component 3 with the drive head 1. A regular hexagonal wrench socket is provided at the center of the drive component 3. The inner side of the reversing pawl 4 is arc-shaped and has a tooth groove. The tooth groove meshes with the ratchet 16. The outer side of the reversing pawl 4 has two convex surfaces and one concave surface. The convex surfaces are located at both ends of the outer side of the reversing pawl 4, and the concave surface is located in the middle of the outer side of the reversing pawl 4, between the two convex surfaces.

[0028] A toggle mounting hole 13 is also provided next to the central hole 7. The toggle mounting hole 13 communicates with the pawl mounting groove 8. A toggle 14 is installed in the toggle mounting hole 13. The toggle 14 has two rotation stop positions, corresponding to clockwise and counterclockwise working modes respectively. The toggle 14 includes a toggle shaft, a lever, and a spring pin. The toggle shaft is rotatably connected in the toggle mounting hole 13. The lever is located at the top of the toggle shaft and protrudes outside the toggle mounting hole 13. The spring pin slides radially into the toggle shaft and abuts against the outer side of the reversing pawl 4. The tail of the drive rod 2 is provided with a functional expansion structure, which includes a storage hole 9, a torque transmission port 10, an annular step 15, and a ring 11. The storage hole 9 is used to store parts such as bit; the inner wall of the storage hole 9 is machined with six equal parts. The large plane, the regular hexagonal opening formed by the six planes constitutes the torque transmission port 10, which is used to form a transmission connection with other drive mechanisms; the step surface of the annular step 15 is lower than the end face of the tail end of the drive rod 2; the ring buckle 11 is semi-circular arc-shaped, and the two ends of the ring buckle 11 are folded inward to form a ring buckle pivot, which is inserted into and rotatably connected to the drive rod 2, and is used to suspend this drive handle on keychains and other components. When the ring buckle 11 is not in use, it can be flipped and folded to the storage position, and it can be stored in the circumferential groove.

[0029] During daily use, select either an internal hex wrench head or an external hex socket according to the type of fastener used on the work object, install it into the wrench socket, and secure it with the magnetic attraction between the internal hex wrench head or external hex socket and the drive component 3. When tightening a screw, the user can first turn the dial 14 to clockwise mode according to the tightening direction of the screw, so that the elastic pin of the dial 14 will be turned to one end, pushing one end of the reversing pawl 4 to lift up, beyond the pawl mounting slot 8, and into the center hole 7. The tooth groove on the lifted end of the reversing pawl 4 engages with the ratchet 16. At this time, the drive handle can only perform clockwise unidirectional transmission. In the counterclockwise direction, the ratchet 16 will slip due to skipping teeth and will not constitute transmission. Conversely, when loosening the screw, turn the dial 14 to the counter-clockwise mode. This causes the elastic pin of the dial 14 to move to the other end, pushing the other end of the reversing pawl 4 upwards, beyond the pawl mounting slot 8, and into the center hole 7. The tooth groove on the upward-raised end of the reversing pawl 4 engages with the ratchet 16. At this time, the drive handle can only perform counter-clockwise unidirectional transmission. In the clockwise direction, the ratchet 16 will slip due to tooth skipping and will not perform transmission. Through the cooperation of the drive component 3 and the reversing pawl 4, the drive handle can complete intermittent unidirectional torque transmission through small-amplitude, high-frequency reciprocating swings, without having to readjust the drive handle because its position exceeds the user's arm's range of motion after rotating a certain distance. The drive handle also has a function for storing loose parts, such as screwdriver bits. The bits are normally placed in the storage hole 9, and then the end cap is screwed onto the port of the storage hole 9. This drive handle can also be fitted with a large-sized tool head holder on the torque transmission port 10 for mounting large-sized hexagonal heads, hexagonal sockets, and other tool heads for pipe and vehicle repairs. This drive handle can be stored by hanging using the ring 11.

[0030] Example 2:

[0031] A drive handle includes a drive head 1 and a drive rod 2. The drive head 1 is connected to the front end of the drive rod 2, and the drive head 1 and drive rod 2 are integrally formed. The drive head 1 has a central hole 7, a drive element 3, and a reversing pawl 4. The drive element 3 is a rotating body, and its circumferential surface has ratchet teeth 16 that mesh with the reversing pawl 4. The drive element 3 is adapted to be embedded in the central hole 7 and can rotate within the central hole 7. The inner wall of the central hole 7 has a pawl mounting groove 8, and the reversing pawl 4 is installed in the pawl mounting groove 8. The reversing pawl 4 is used to switch the direction of the drive element 3, so that the drive element 3 can perform unidirectional transmission as needed. One end face of the drive element 3 has a handle 12, which is integrally formed with the drive element 3 and is cup-shaped. The outer circumferential surface of the other end of the drive element 3 has a bayonet 5, and the bayonet 5 has an elastic locking element 6 that engages the drive element 3 with the drive head 1. The center of the drive element 3 has a regular hexagonal wrench socket. The inner side of the reversing pawl 4 is arc-shaped and has a tooth groove. The tooth groove meshes with the ratchet 16. The outer side of the reversing pawl 4 has two convex surfaces and one concave surface. The convex surfaces are located at both ends of the outer side of the reversing pawl 4, and the concave surface is located in the middle of the outer side of the reversing pawl 4, between the two convex surfaces.

[0032] A toggle mounting hole 13 is also provided next to the central hole 7. The toggle mounting hole 13 communicates with the pawl mounting groove 8. A toggle 14 is installed in the toggle mounting hole 13. The toggle 14 has two rotation stop positions, corresponding to clockwise and counterclockwise working modes, respectively. The toggle 14 includes a toggle shaft, a paddle, and a spring pin. The toggle shaft is rotatably connected in the toggle mounting hole 13. The paddle is located at the top of the toggle shaft and protrudes outside the toggle mounting hole 13. The spring pin slides radially along the toggle shaft and is inserted into the toggle shaft and abuts against the outer side of the reversing pawl 4. The tail of the drive rod 2 is provided with a functional expansion structure. Unlike embodiment 1, this functional expansion structure is a storage hole 9, which is used to store parts such as bit. The rest is the same as in embodiment 1.

[0033] During daily use, select either an internal hex wrench head or an external hex socket according to the type of fastener used on the work object, install it into the wrench socket, and secure it with the magnetic attraction between the internal hex wrench head or external hex socket and the drive component 3. When tightening a screw, the user can first turn the dial 14 to clockwise mode according to the tightening direction of the screw, so that the elastic pin of the dial 14 will be turned to one end, pushing one end of the reversing pawl 4 to lift up, beyond the pawl mounting slot 8, and into the center hole 7. The tooth groove on the lifted end of the reversing pawl 4 engages with the ratchet 16. At this time, the drive handle can only perform clockwise unidirectional transmission. In the counterclockwise direction, the ratchet 16 will slip due to skipping teeth and will not constitute transmission. Conversely, when loosening the screw, turn the dial 14 to the counter-clockwise mode. This causes the elastic pin of the dial 14 to move to the other end, pushing the other end of the reversing pawl 4 upwards, beyond the pawl mounting slot 8, and into the center hole 7. The tooth groove on the upward-raised end of the reversing pawl 4 engages with the ratchet 16. At this time, the drive handle can only perform counter-clockwise unidirectional transmission. In the clockwise direction, the ratchet 16 will slip due to tooth skipping and will not perform transmission. Through the cooperation of the drive component 3 and the reversing pawl 4, the drive handle can complete intermittent unidirectional torque transmission through small-amplitude, high-frequency reciprocating swings, without having to readjust the drive handle because its position exceeds the user's arm's range of motion after rotating a certain distance. The drive handle also has a function for storing loose parts, such as screwdriver bits. The bits are normally placed in the storage hole 9, and then the end cap is screwed onto the port of the storage hole 9.

[0034] Example 3:

[0035] A drive handle includes a drive head 1 and a drive rod 2. The drive head 1 is connected to the front end of the drive rod 2, and the drive head 1 and drive rod 2 are integrally formed. The drive head 1 has a central hole 7, a drive element 3, and a reversing pawl 4. The drive element 3 is a rotating body, and its circumferential surface has ratchet teeth 16 that mesh with the reversing pawl 4. The drive element 3 is adapted to be embedded in the central hole 7 and can rotate within the central hole 7. The inner wall of the central hole 7 has a pawl mounting groove 8, and the reversing pawl 4 is installed in the pawl mounting groove 8. The reversing pawl 4 is used to switch the direction of the drive element 3, so that the drive element 3 can perform unidirectional transmission as needed. One end face of the drive element 3 has a handle 12, which is integrally formed with the drive element 3 and is cup-shaped. The outer circumferential surface of the other end of the drive element 3 has a bayonet 5, and the bayonet 5 has an elastic locking element 6 that engages the drive element 3 with the drive head 1. The center of the drive element 3 has a regular hexagonal wrench socket. The inner side of the reversing pawl 4 is arc-shaped and has a tooth groove. The tooth groove meshes with the ratchet 16. The outer side of the reversing pawl 4 has two convex surfaces and one concave surface. The convex surfaces are located at both ends of the outer side of the reversing pawl 4, and the concave surface is located in the middle of the outer side of the reversing pawl 4, between the two convex surfaces.

[0036] A toggle mounting hole 13 is also provided next to the central hole 7. The toggle mounting hole 13 communicates with the pawl mounting groove 8. A toggle 14 is installed in the toggle mounting hole 13. The toggle 14 has two rotation stop positions, corresponding to clockwise and counterclockwise working modes, respectively. The toggle 14 includes a toggle shaft, a paddle, and a spring pin. The toggle shaft is rotatably connected in the toggle mounting hole 13. The paddle is located at the top of the toggle shaft and protrudes outside the toggle mounting hole 13. The spring pin slides radially along the toggle shaft and is inserted into the toggle shaft and abuts against the outer side of the reversing pawl 4. The tail of the drive rod 2 is provided with a functional extension structure. Unlike embodiment 1, this functional extension structure is a regular hexagonal torque transmission port 10, which is used to form a transmission connection with other drive mechanisms. The rest is the same as in embodiment 1.

[0037] During daily use, select either an internal hex wrench head or an external hex socket according to the type of fastener used on the work object, install it into the wrench socket, and secure it with the magnetic attraction between the internal hex wrench head or external hex socket and the drive component 3. When tightening a screw, the user can first turn the dial 14 to clockwise mode according to the tightening direction of the screw, so that the elastic pin of the dial 14 will be turned to one end, pushing one end of the reversing pawl 4 to lift up, beyond the pawl mounting slot 8, and into the center hole 7. The tooth groove on the lifted end of the reversing pawl 4 engages with the ratchet 16. At this time, the drive handle can only perform clockwise unidirectional transmission. In the counterclockwise direction, the ratchet 16 will slip due to skipping teeth and will not constitute transmission. Conversely, when loosening the screw, turn the lever 14 to the counter-clockwise mode. This causes the elastic pin of lever 14 to move to the other end, pushing the other end of the reversing pawl 4 upwards, beyond the pawl mounting slot 8, and into the center hole 7. The tooth groove on the upward-raised end of the reversing pawl 4 engages with the ratchet 16. At this time, the drive handle can only perform counter-clockwise unidirectional transmission. In the clockwise direction, the ratchet 16 will slip due to tooth skipping and will not perform transmission. Through the cooperation of the drive component 3 and the reversing pawl 4, the drive handle can complete intermittent unidirectional torque transmission through small-amplitude, high-frequency reciprocating oscillations, without having to readjust the drive handle because its position exceeds the user's arm's limit after rotating a certain distance. The drive handle can also be fitted with a large-size tool head holder on the torque transmission port 10 for mounting large-size hexagonal heads, hexagonal sockets, and other tool heads for pipe and vehicle repairs.

[0038] Example 4:

[0039] A drive handle includes a drive head 1 and a drive rod 2. The drive head 1 is connected to the front end of the drive rod 2, and the drive head 1 and drive rod 2 are integrally formed. The drive head 1 has a central hole 7, a drive element 3, and a reversing pawl 4. The drive element 3 is a rotating body, and its circumferential surface has ratchet teeth 16 that mesh with the reversing pawl 4. The drive element 3 is adapted to be embedded in the central hole 7 and can rotate within the central hole 7. The inner wall of the central hole 7 has a pawl mounting groove 8, and the reversing pawl 4 is installed in the pawl mounting groove 8. The reversing pawl 4 is used to switch the direction of the drive element 3, so that the drive element 3 can perform unidirectional transmission as needed. One end face of the drive element 3 has a handle 12, which is integrally formed with the drive element 3 and is cup-shaped. The outer circumferential surface of the other end of the drive element 3 has a bayonet 5, and the bayonet 5 has an elastic locking element 6 that engages the drive element 3 with the drive head 1. The center of the drive element 3 has a regular hexagonal wrench socket. The inner side of the reversing pawl 4 is arc-shaped and has a tooth groove. The tooth groove meshes with the ratchet 16. The outer side of the reversing pawl 4 has two convex surfaces and one concave surface. The convex surfaces are located at both ends of the outer side of the reversing pawl 4, and the concave surface is located in the middle of the outer side of the reversing pawl 4, between the two convex surfaces.

[0040] Next to the center hole 7, there is also a knob mounting hole 13. The knob mounting hole 13 is connected to the pawl mounting groove 8. A knob 14 is installed in the knob mounting hole 13. The knob 14 has two rotation stop positions, corresponding to the clockwise and counterclockwise working modes respectively. The toggle switch 14 includes a toggle switch shaft, a paddle, and a spring pin. The toggle switch shaft is rotatably connected within the toggle switch mounting hole 13. The paddle is located at the top of the toggle switch shaft and protrudes outside the toggle switch mounting hole 13. The spring pin slides radially along the toggle switch shaft and is inserted into the toggle switch shaft, abutting against the outer side of the reversing pawl 4. The tail of the drive rod 2 is provided with a functional extension structure. Unlike embodiment 1, this functional extension structure includes an annular step 15 and a ring buckle 11. The step surface of the annular step 15 is lower than the end face of the tail of the drive rod 2. The ring buckle 11 is semi-circular, and its two ends are folded inward to form a ring buckle pivot. The ring buckle pivot is inserted into and rotatably connected to the drive rod 2, used to suspend the drive handle on a keychain or other component. When the ring buckle 11 is not in use, it can be flipped and folded to a storage position, where it can be stored in a circumferential groove. The rest is the same as in embodiment 1.

[0041] During daily use, select either an internal hex wrench head or an external hex socket according to the type of fastener used on the work object, install it into the wrench socket, and secure it with the magnetic attraction between the internal hex wrench head or external hex socket and the drive component 3. When tightening a screw, the user can first turn the dial 14 to clockwise mode according to the tightening direction of the screw, so that the elastic pin of the dial 14 will be turned to one end, pushing one end of the reversing pawl 4 to lift up, beyond the pawl mounting slot 8, and into the center hole 7. The tooth groove on the lifted end of the reversing pawl 4 engages with the ratchet 16. At this time, the drive handle can only perform clockwise unidirectional transmission. In the counterclockwise direction, the ratchet 16 will slip due to skipping teeth and will not constitute transmission. Conversely, when loosening the screw, turn the dial 14 to the counter-clockwise mode. This causes the elastic pin of dial 14 to move to the other end, pushing the other end of the reversing pawl 4 upwards, beyond the pawl mounting slot 8, and into the center hole 7. The tooth groove on the upward-raised end of the reversing pawl 4 engages with the ratchet 16. At this time, the drive handle can only perform counter-clockwise unidirectional transmission. In the clockwise direction, the ratchet 16 will slip due to tooth skipping and will not perform transmission. Through the cooperation of the drive component 3 and the reversing pawl 4, the drive handle can complete intermittent unidirectional torque transmission through small-amplitude, high-frequency reciprocating swings, without having to readjust the drive handle because its position exceeds the user's arm's range of motion after rotating a certain distance. The drive handle also has a storage function for loose parts, such as screwdriver bits. The bits are normally placed in the storage hole 9, and then the end cap is screwed on the port of the storage hole 9. The drive handle can be stored in a hanging manner using the ring 11.

Claims

1. A drive handle, comprising a drive head (1) and a drive rod (2) connected to the drive head (1), characterized in that, The drive head (1) is provided with a rotatable drive component (3) and a reversing pawl (4) for switching the direction of the drive component (3), and the tail of the drive rod (2) is provided with a functional expansion structure.

2. The drive handle according to claim 1, characterized in that, The driving component (3) is a rotating body, and the circumferential surface of the driving component (3) is provided with ratchet teeth that mesh with the reversing pawl (4).

3. The drive handle according to claim 1, characterized in that, A handle (12) is provided on one end face of the drive component (3).

4. The drive handle according to claim 3, characterized in that, A slot (5) is provided on the outer peripheral surface of the other end of the drive component (3), and an elastic clip (6) is provided on the slot (5) to clip the drive component (3) onto the drive head (1).

5. The drive handle according to claim 2, characterized in that, The inner side of the reversing pawl (4) is arc-shaped and has a tooth groove that engages with the ratchet. The outer side of the reversing pawl (4) has two convex surfaces and one concave surface. The convex surfaces are located at both ends of the outer side of the reversing pawl (4), and the concave surface is located between the two convex surfaces.

6. The drive handle according to claim 1, characterized in that, The drive head (1) has a central hole (7), the drive component (3) is fitted into the central hole (7), the inner wall of the central hole (7) is provided with a pawl mounting groove (8), and the reversing pawl (4) is installed in the pawl mounting groove (8).

7. The drive handle according to claim 1, characterized in that, The functional expansion structure includes a storage hole (9).

8. The drive handle according to claim 1, characterized in that, The functional expansion structure also includes a torque transmission port (10).

9. The drive handle according to claim 1, characterized in that, The functional expansion structure also includes a ring (11), which is rotatably connected to the drive rod (2).

10. The drive handle according to any one of claims 1 to 9, characterized in that, The drive head (1) and drive rod (2) are integrally formed.

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