CN212096131U

CN212096131U - Hand turning device

Info

Publication number: CN212096131U
Application number: CN202020271255.2U
Authority: CN
Inventors: 刘志雷; 程佳其
Original assignee: Hebei College of Industry and Technology
Current assignee: Hebei College of Industry and Technology
Priority date: 2020-03-06
Filing date: 2020-03-06
Publication date: 2020-12-08
Anticipated expiration: 2030-03-06

Abstract

The utility model provides a hand turn, which belongs to the technical field of hand tools and comprises a shell, a rotating mechanism, a driving mechanism and a locking mechanism, wherein a cavity body is arranged in the shell, the rotating mechanism is rotatably arranged in the shell, one end of the rotating mechanism extends out of the outer side of the shell, and an executing piece for screwing screws is sleeved on the outer side end of the rotating mechanism; the driving mechanism is arranged in the shell, connected with the rotating mechanism and used for driving the rotating mechanism to rotate; the locking mechanism is arranged on the shell and used for locking the rotating mechanism. The utility model provides a hand is changeed, has to the screw nail soon twist the time weak point, and is fast, convenient operation's technological effect.

Description

Hand turning device

Technical Field

The utility model belongs to the technical field of hand tool, more specifically say, relate to a hand is changeed.

Background

In laboratory experiment operation, some manual operating tools, such as pliers, a wrench, a screwdriver, a hammer and the like, are used for assembling some experimental articles, such as molds, instruments, frames and the like, which need to be operated in the experiment process and completing the experiment. Screws are commonly used test articles for assembling and fixing frames and instruments, wherein a screwdriver is an operation tool for screwing the screws to force the screws to be in place, and the existing screwdriver is provided with a wedge-shaped head and a handle, can screw the screws in place by hand force, and has a single use function. When a plurality of screws are used in the experiment process, the screw screwing time by using the screwdriver one by one is longer, and the operation is more complicated. In addition, the electric screw driver on the market is not good in use and high in price, and the experiment cost is increased when the electric screw driver is used in places with infrequent use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hand is changeed, aims at solving when revolving the screw that revolves soon more, the inconvenient technical problem of screwdriver operation.

In order to achieve the above object, the utility model adopts the following technical scheme: the manual rotation device comprises a shell, a rotating mechanism, a driving mechanism and a locking mechanism, wherein a cavity is arranged in the shell, the rotating mechanism is rotatably arranged in the shell, one end of the rotating mechanism extends out of the outer side of the shell, and an executing piece for screwing a screw is sleeved at the outer side end of the rotating mechanism; the driving mechanism is arranged in the shell, is connected with the rotating mechanism and is used for driving the rotating mechanism to rotate; the locking mechanism is arranged on the shell and used for locking the rotating mechanism.

As another embodiment of the present application, the rotating mechanism includes a slide rail, a slide ring, and a rotating rod, and the slide rail is disposed in the hollow cavity and arranged along the length direction of the housing; the sliding ring is connected with the sliding rail in a sliding manner and can slide along the length direction of the sliding rail, and a bearing piece is sleeved in the sliding ring; the rotary rod passes the bearing piece can the radial rotation in the bearing piece, the executive component is located the rotary rod outside is served, the medial extremity of rotary rod rotates to be located in the casing, actuating mechanism with the middle part gear connection of rotary rod.

As another embodiment of this application, the rotary rod includes the anterior body of rod, the middle part body of rod and the rear portion body of rod, the anterior body of rod is telescopic body of rod structure the coaxial first gear that has set firmly on the body of rod of middle part the rear portion body of rod with the casing rotates to be connected, the anterior body of rod is followed the length direction of slide rail is flexible be connected with the moment of torsion tester on the body of rod of rear portion.

As another embodiment of the present application, the driving mechanism includes a rocker arm, a ratchet plate, a ratchet wheel, a second gear, a third gear, a worm wheel, a worm and a transmission assembly, one end of the rocker arm is hinged to the outer wall of the housing, the other end of the rocker arm is a free end, an arc ratchet plate is fixedly arranged on the free end, a plurality of ratchets are uniformly and fixedly arranged on the ratchet plate, the rocker arm is used for pushing the ratchet plate to swing, and the ratchet plate penetrates through the housing in the reciprocating swing; the ratchet wheel is rotatably arranged in the shell and is in meshed transmission connection with the ratchet plate, the ratchet plate drives the ratchet wheel to rotate by means of the rocker arm, a second gear is coaxially and fixedly connected to the side part of the ratchet wheel, and the second gear and the ratchet wheel rotate simultaneously; the third gear is rotatably arranged in the shell and is in meshed transmission connection with the second gear, a worm wheel is coaxially and fixedly connected to the side of the third gear, and the worm wheel and the third gear rotate simultaneously; the worm with the worm wheel meshing transmission is connected, and both ends are all rotated and are located on the casing, set firmly the fourth gear on the worm, the fourth gear with the worm rotates simultaneously, the fourth gear passes through the drive assembly drive the rotary rod rotates.

As another embodiment of the present application, the transmission assembly includes a fifth gear, a sixth gear and a seventh gear, both ends of the fifth gear are rotatably connected to the housing, and the fifth gear is in meshing transmission connection with the fourth gear; the two ends of the sixth gear are rotatably connected with the shell, the sixth gear is in meshed transmission with the fifth gear, a seventh gear is coaxially arranged on the side of the sixth gear, the seventh gear and the sixth gear rotate simultaneously, the seventh gear is in meshed transmission with the first gear, and the seventh gear is used for driving the rotating rod to rotate.

As another embodiment of the application, an elastic part is arranged between the rocker arm and the shell and used for pushing the rocker arm to swing in the direction far away from the shell.

As another embodiment of the application, the locking mechanism comprises a clasping member and an ejecting member, the clasping member is arranged on the outer wall of the shell and is detachably connected with the rotating rod, and the clasping member is used for clasping the rotating rod; the ejection piece penetrates through the shell and is used for ejecting and limiting the rotating rod.

As another embodiment of the present application, the actuating member is detachably connected to the rotating rod, the actuating member includes a connecting portion connected to the rotating rod and an actuating portion for screwing a screw, and the actuating portion is provided with a linear or cross-shaped or hexagonal notch structure.

As another embodiment of this application, be equipped with couple and V type opening on the outer wall of casing, V type opening is used for pulling out the nail.

As another embodiment of this application, the outside portion of casing is equipped with the saw blade, the saw blade with the connection can be dismantled to the casing, be equipped with the scale mark on the saw blade.

The utility model provides a beneficial effect that hand turned lies in: compared with the prior art, the utility model discloses a hand is changeed, grip actuating mechanism through the hand, actuating mechanism drives rotary mechanism and rotates, rotary mechanism drives the executive component and drives, will carry out a butt screw and revolve wrong, revolve wrong the screw and get off, when the screw is revolved to the enough big moment of torsion of needs, through locking mechanism locking rotary mechanism, it can drive the screw rotatory directly to revolve wrong casing, when revolving wrong screw more, solved, the inconvenient technical problem of screwdriver operation, it is short to have to revolve wrong time of screwing the screw, and is fast, convenient operation's technological effect.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a hand turn provided in an embodiment of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a view taken from the B direction in FIG. 1;

fig. 4 is a cross-sectional view taken at C-C in fig. 1.

In the figure: 1. a housing; 2. a rotation mechanism; 21. a slide rail; 22. a slip ring; 23. rotating the rod; 24. a bearing member; 25. a first gear; 26. a torque tester; 3. a drive mechanism; 31. a rocker arm; 32. a ratchet plate; 33. a ratchet wheel; 34. a second gear; 35. a third gear; 36. a worm gear; 37. a worm; 38. a fourth gear; 39. a transmission assembly; 391. a fifth gear; 392. a sixth gear; 393. a seventh gear; 4. a locking mechanism; 41. a clasping piece; 42. pushing the ejection piece; 5. an executive component; 6. an elastic member; 7. hooking; 8. a V-shaped opening; 9. a saw blade.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 and 4 together, the hand turn provided by the present invention will now be described. The manual rotation device comprises a shell 1, a rotating mechanism 2, a driving mechanism 3 and a locking mechanism 4, wherein a cavity is arranged in the shell 1, the rotating mechanism 2 is rotatably arranged in the shell 1, one end of the rotating mechanism 2 extends out of the shell 1, and an executing part 5 for screwing screws is sleeved at the outer end of the rotating mechanism 2; the driving mechanism 3 is arranged in the shell 1, connected with the rotating mechanism 2 and used for driving the rotating mechanism 2 to rotate; the locking mechanism 4 is arranged on the shell 1 and used for locking the rotating mechanism 2.

The utility model provides a hand is changeed, compared with the prior art, grip actuating mechanism 3 through the hand, actuating mechanism 3 drives rotary mechanism 2 and rotates, rotary mechanism 2 drives executive component 5 and drives, will carry out 5 butt screws and revolve wrong, revolve wrong the screw and get off, when the screw is revolved to the enough big moment of torsion of needs, through locking mechanism 4 locking rotary mechanism 2, it can drive the screw rotatory directly to revolve wrong casing 1, when revolving the screw that revolves is more solved, the inconvenient technical problem of screwdriver operation, it is short to have the screw nail revolve wrong time, and is fast, and convenient for operation's technological effect.

In a specific embodiment, the utility model is suitable for an operation when the moment of torsion of twisting the screw is not big, casing 1 is the pistol type, rotary mechanism 2 and actuating mechanism 3 are arranged respectively at the both ends of casing 1 of pistol type structure, actuating mechanism 3 is located the position of the handheld portion of rifle type structure promptly, rotary mechanism 2 is located the position of the transmitting part of rifle type structure, the cavity position is inside casing 1, be equipped with the through-hole at casing 1 lateral part near executor 5, so that executor 5 can pass, be favorable to twisting the operation soon, workman's hand is held the one end of the casing 1 that holds actuating mechanism 3, the one end of the casing 1 that will hold rotator 2 is towards the screw, make executor 5 and screw butt or butt joint, through the strength of holding of hand, drive rotary mechanism 2 is rotatory, so that twist the screw soon fast. The drive power of actuating mechanism 3 is different, then the produced moment of torsion of executor 5 is just different, and then the moment of torsion size through adjusting actuating mechanism 3, can conveniently adjust the moment of torsion to the screw, can be according to actual field conditions, handheld casing 1, to actuating mechanism 3 carry out reasonable control can.

Wherein, the rotating direction of the rotating mechanism 2 of the utility model can be adjusted, and the rotating mechanism can rotate positively or reversely; in addition, the rotating speed of the actuating member 5 can be adjusted, the transmission ratio of the rotating mechanism 2 can be adjusted by adjusting the driving mechanism 3, the operation is simple and flexible, and the forward screwing and the reverse screwing of screws of different types and specifications can be realized.

If when screwing the screw, when using very big moment of torsion still can not twist soon or the screw does not have sound, should use locking mechanism 4 this moment, die rotary mechanism 2 lock, this moment the utility model discloses just become a ordinary screwdriver, directly with the rotatory casing of hand 1, casing 1 rotates the back, will promote the executor 5 rotatory to can twist soon the screw.

As a specific implementation manner of the hand turning provided by the present invention, please refer to fig. 1, fig. 2 and fig. 4, the rotating mechanism 2 includes a sliding rail 21, a sliding ring 22 and a rotating rod 23, the sliding rail 21 is disposed in the cavity and is arranged along the length direction of the housing 1; the sliding ring 22 is connected with the sliding rail 21 in a sliding manner and can slide along the length direction of the sliding rail 21, and a bearing piece 24 is sleeved in the sliding ring 22; the rotating rod 23 penetrates through the bearing element 24 and can rotate in the radial direction in the bearing element 24, the actuating element 5 is positioned at the outer end of the rotating rod 23, the inner end of the rotating rod 23 is rotatably arranged in the shell 1, the driving mechanism 3 is connected with the middle gear of the rotating rod 23, and the front end of the rotating rod 23 can axially slide in the shell 1. The rotating rod 23 is a main part for transmitting torque, the sliding rail 21 provides a support for the rotating rod 23 to slide along the length direction of the housing 1, and the bearing element 24 provides a support for the rotating rod 23 to rotate radially, so that a set of support for the rotating rod 23 to slide axially and rotate radially is formed by the sliding rail 21, the sliding ring 22 and the bearing element 24, which has the advantage that when the length of a screwed screw is short, and the operation is limited, the screw can be adapted to the operation of screws in different forms by adjusting the telescopic length of the rotating rod 23.

Specifically, two sets of sliding rings 22 and two sets of bearing elements 24 are disposed in the middle of the rotating rod 23, and a bearing is disposed at the inner end of the rotating rod 23, so that the rotating rod 23 is rotatably connected to the inner wall of the casing 1, and two ends of the sliding rail 21 are respectively provided with a limiting block, which limits the moving position of the sliding ring 22 and prevents the sliding ring 22 from slipping to the outer side of the sliding rail 21, i.e., the sliding ring 22 can only slide on the sliding rail 21, so as to maintain the stability of the rotation and the sliding of the rotating rod 23.

As a specific embodiment of the hand turning device provided in the present invention, please refer to fig. 1-2, the rotary rod 23 includes a front rod body, a middle rod body and a rear rod body, the front rod body is a telescopic rod body structure, the first gear 25 is coaxially fixed on the middle rod body, the rear rod body is rotatably connected with the casing 1, the front rod body is telescopic along the length direction of the slide rail 21, and the rear rod body is connected with the torque tester 26.

Since the driving force for screwing the screw is the torque generated by the rotating rod 23, the larger the torque, the faster the screw is screwed; in addition, the actual torque of the rotating rod 23 can be monitored through the torque tester 26, and the torque of the rotating rod 23 can be observed in real time, so that the torque of the rotating rod 23 can be adjusted conveniently.

Distance between two sliding rings 22 is adjustable, for the flexible support that provides of rotary rod 23, the middle part of rotary rod 23 is equipped with a section telescopic link, does not produce circumferential direction between telescopic link and the other body of rod, guarantees the torque transmission of rotary rod 23, and the telescopic link makes rotary rod 23 can stretch out and draw back, and at flexible in-process, sliding ring 22 also slides along slide rail 21, but also loses rotary function of rotary rod 23. During the rotation of the rotating rod 23, the first gear 25 also rotates, and the first gear 25 may be a straight gear or a helical gear. The monitoring end of the torque tester 26 is connected to the end of the rotating rod 23, the torque of the torque tester is monitored in real time, the torque tester 26 extends out of the shell 1, and a worker can see torque data of a display screen on the torque tester 26 through naked eyes.

As a specific implementation manner of the manual rotation provided by the present invention, please refer to fig. 1 and 3, the driving mechanism 3 includes a rocker arm 31, a ratchet plate 32, a ratchet 33, a second gear 34, a third gear 35, a worm wheel 36, a worm 37, a fourth gear 38 and a transmission assembly 39, one end of the rocker arm 31 is hinged to the outer wall of the housing 1, the other end is a free end, an arc-shaped ratchet plate 32 is fixedly arranged on the free end, a plurality of ratchets are uniformly and fixedly arranged on the ratchet plate 32, the rocker arm 31 is used for pushing the ratchet plate 32 to swing, and the ratchet plate 32 passes through the housing 1 in the reciprocating swing; the ratchet wheel 33 is rotatably arranged in the shell 1 and is in meshed transmission connection with the ratchet plate 32, the ratchet plate 32 drives the ratchet wheel 33 to rotate by means of the rocker arm 31, a second gear 34 is coaxially fixed on the side part of the ratchet wheel 33, and the second gear 34 and the ratchet wheel 33 rotate simultaneously; the third gear 35 is rotatably arranged in the shell 1 and is in meshing transmission connection with the second gear 34, a worm wheel 36 is coaxially and fixedly connected to the side part of the third gear 35, and the worm wheel 36 and the third gear 35 rotate simultaneously; the worm 37 is in meshing transmission connection with the worm wheel 36, both ends of the worm are rotatably arranged on the shell 1, a fourth gear 38 is fixedly arranged on the worm 37, the fourth gear 38 and the worm 37 rotate simultaneously, and the fourth gear 38 drives the rotating rod 23 to rotate through a transmission assembly 39. The transmission sequence of the driving mechanism 3 is as follows: the hand holding force of a person → the rocker arm 31 → the ratchet plate 32 → the ratchet wheel 33 → the second gear 34 → the third gear 35 → the worm wheel 36 → the worm 37 → the fourth gear 38 → the transmission component 39 → the rotating rod 23, the ratchet on the ratchet plate 32 and the ratchet wheel 33 are mutually engaged and transmitted, and then the rotating rod 23 can be driven to rotate, and due to the fact that the sizes of the hands of different persons are different, various transmission modes are arranged, and the hand holding force is transmitted to the rotating rod 23.

In one embodiment, the second gear 34, the third gear 35, and the fourth gear 38 may be spur gears or helical gears. The ratchet wheel 33 and the ratchet wheel are matched with each other, so that the rotating direction of the ratchet wheel 33 is one-way, the ratchet wheel 33 cannot rotate in the resetting process of the rocker arm 31, the rotating rod 23 cannot rotate reversely, and the screw can be effectively screwed. Both ends of the worm 37 are rotatably connected to the housing 1 through bearings mounted on the inner wall of the housing 1. Ratchet 33 and second gear 34 inter-group become the community, and third gear 35 and worm wheel 36 inter-group become the community, are equipped with the through-hole at respective middle part, and the pivot has been alternate to the through-hole, and the both ends of pivot are passed through the bearing and are rotated the connection on casing 1 inner wall.

As a specific embodiment of the hand turning device provided by the present invention, please refer to fig. 1 and fig. 3, the transmission assembly 39 includes a fifth gear 391, a sixth gear 392 and a seventh gear 393, both ends of the fifth gear 391 are rotatably connected to the housing 1, and the fifth gear 391 is in meshing transmission connection with the fourth gear 38; both ends of the sixth gear 392 are rotatably connected with the housing 1, the sixth gear 392 is in meshed transmission with the fifth gear 391, a seventh gear 393 is coaxially arranged at the side part of the sixth gear 392, the seventh gear 393 and the sixth gear 392 rotate simultaneously, the seventh gear 393 is in meshed transmission with the first gear 25, and the seventh gear 393 is used for driving the rotating rod 23 to rotate. Since the hand of the person is used for holding the housing 1, and the hand force of the person is required to be applied to the swing arm 31, the hand of the person can be completely held by the housing 1, so that the housing 1 includes the transmission assembly 39, the transmission assembly 39 is formed by meshing a plurality of gears, the force applied to the swing arm 31 can be transmitted to the rotating rod 23, the design is reasonable, the force can be stably transmitted, and the rotating rod 23 is driven to rotate.

Specifically, fifth gear 391, sixth gear 392, and seventh gear 393 may be spur gears or helical gears.

As a specific implementation manner of the hand turning device provided by the present invention, please refer to fig. 1, an elastic member 6 is disposed between the rocker arm 31 and the housing 1, and the elastic member 6 is used for pushing the rocker arm 31 to swing in a direction away from the housing 1. The swing arm 31 is a main actuator, and when the swing arm 31 is manually held by a hand and the swing arm 31 is gripped toward the inside of the housing 1, the swing arm 31 rotates toward the inside of the housing 1, thereby driving the ratchet plate 32 to swing. When the rocker arm 31 is not operated, the elastic piece 6 is arranged to enable the rocker arm 31 to automatically reset, so that the operation is simple, and the screwing of the screw nail is not influenced when the rocker arm 31 is reset.

Specifically, the elastic member 6 is a spring, and can push the rocker arm 31 to rotate in a direction away from the housing 1.

As a specific implementation manner of the hand turning provided by the present invention, please refer to fig. 1 and 4, the locking mechanism 4 includes a clasping member 41 and a pushing member 42, the clasping member 41 is disposed on the outer wall of the housing 1 and detachably connected to the rotating rod 23, and the clasping member 41 is used for clasping the rotating rod 23; the ejector 42 penetrates the housing 1 for ejecting and restraining the rotating rod 23. The clasping member 41 can be regarded as a structure similar to a hoop, the rotating rod 23 is inserted into the clasping member 41, and when the rotating rod 23 needs to be limited, the clasping member 41 can be operated to clasp the rotating rod 23. In addition, the rotating rod 23 can be pushed by screwing the pushing piece 42, so that the rotating rod 23 is limited.

Specifically, hold a 41 and include two semicircular structures that dock each other, two semicircular structures's one end is for articulated each other, the other end is the free end, is equipped with the bolt that is used for adjusting two semicircular structures butt clamp dynamics each other on two free ends, revolves the number of turns soon through adjusting bolt, can adjust the dynamics of holding tightly rotary rod 23 to can hold rotary rod 23 tightly and spacing. When the clasping member 41 is not needed, the bolt can be loosened, releasing the rotating rod 23. The ejection piece 42 is rotated reversely, so that the ejection piece 42 is far away from the rotating rod 23, ejection and limiting of the rotating rod 23 can be released, and in the actual operation process, the clasping piece 41 and the ejection piece 42 can be adjusted reasonably, so that reasonable control and reasonable use are realized.

As a specific embodiment of the hand turning device of the present invention, please refer to fig. 1 and fig. 4, the actuating member 5 is detachably connected to the rotating rod 23, the actuating member 5 includes a connecting portion connected to the rotating rod 23 and an actuating portion for screwing a screw, and the actuating portion is provided with a linear or cross or hexagonal slot structure. Because the screw has different forms, the end of the screw may be a straight-line type, cross-shaped or hexagonal structure, when the screw needs to be screwed, different forms of execution parts are selected for the different forms of screws, the execution parts are sleeved on the screw to be screwed, and the driving mechanism 3 is operated to rotate the screw forward or backward to tighten or loosen the screw.

Specifically, the execution part is fixedly connected with the connecting part, the connecting part is in threaded connection or clamping connection or spline connection with the rotary rod 23, and the connecting part is simple in connection form with the rotary rod 23 and easy to install and disassemble.

As a specific embodiment of the hand turning device provided by the present invention, please refer to fig. 1, a hook 7 and a V-shaped opening 8 are disposed on the outer wall of the housing 1, and the V-shaped opening 8 is used for pulling out a nail. The hook 7 can be used for putting up the cantilever of the utility model, and the arrangement is convenient to be concluded. The claw hammer that our daily life used, its claw structure is V type opening 8, places the nail in this V type opening 8, uses lever principle, pries the claw hammer and can pull up the nail. The utility model discloses in also adopting V type opening 8, its principle is similar with the claw hammer, has pulled out the nail, has increased like this the utility model discloses a service function.

As a specific implementation manner of the hand turning device provided by the present invention, please refer to fig. 1, a saw blade 9 is disposed at an outer side portion of the housing 1, the saw blade 9 is detachably connected to the housing 1, and the saw blade 9 is provided with scale marks. The saw blade 9 is a tool for sawing wood, plastic or thin-walled metal plates, and when the saw blade 9 is needed, it is mounted on the outer wall of the housing 1, and when the saw blade 9 is not used, it can be detached from the housing 1, and in addition, when the saw blade 9 is used, it can be used with reference to the scale marks for operation and sawing.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. Hand is changeed, its characterized in that includes:

a shell, wherein a cavity body is arranged in the shell;

the rotating mechanism is rotatably arranged in the shell, one end of the rotating mechanism extends out of the outer side of the shell, and an executing piece for screwing the screw is sleeved on the outer side end of the rotating mechanism;

the driving mechanism is arranged in the shell, is connected with the rotating mechanism and is used for driving the rotating mechanism to rotate; and

and the locking mechanism is arranged on the shell and used for locking the rotating mechanism.

2. The hand turn of claim 1, wherein the rotation mechanism comprises:

the sliding rail is arranged in the hollow cavity and is arranged along the length direction of the shell;

the sliding ring is connected with the sliding rail in a sliding manner and can slide along the length direction of the sliding rail, and a bearing piece is sleeved in the sliding ring; and

the rotary rod passes the bearing piece can the radial rotation in the bearing piece, the executive component is located the rotary rod outside is served, the medial extremity of rotary rod rotates to be located in the casing, actuating mechanism with the middle part gear connection of rotary rod.

3. The hand turn of claim 2, wherein the rotating rod comprises a front rod body, a middle rod body and a rear rod body, the front rod body is of a telescopic rod body structure, a first gear is coaxially and fixedly arranged on the middle rod body, the rear rod body is rotatably connected with the shell, the front rod body extends and retracts along the length direction of the sliding rail, and a torque tester is connected to the rear rod body.

4. The hand reel of claim 3, wherein the drive mechanism comprises:

one end of the rocker arm is hinged with the outer wall of the shell, the other end of the rocker arm is a free end, an arc-shaped ratchet plate is fixedly arranged on the free end, a plurality of ratchets are uniformly and fixedly arranged on the ratchet plate, the rocker arm is used for pushing the ratchet plate to swing, and the ratchet plate penetrates through the shell in the reciprocating swing process;

the ratchet wheel is rotatably arranged in the shell and is in meshed transmission connection with the ratchet plate, the ratchet plate drives the ratchet wheel to rotate by virtue of the rocker arm, a second gear is coaxially and fixedly connected to the side part of the ratchet wheel, and the second gear and the ratchet wheel rotate simultaneously;

the third gear is rotatably arranged in the shell and is in meshed transmission connection with the second gear, a worm wheel is coaxially and fixedly connected to the side of the third gear, and the worm wheel and the third gear rotate simultaneously; and

the worm, with the worm wheel meshing transmission is connected, and both ends are all rotated and are located on the casing, set firmly the fourth gear on the worm, the fourth gear with the worm rotates simultaneously, the fourth gear passes through the drive assembly drive the rotary rod rotates.

5. The hand reel of claim 4, wherein the transmission assembly comprises:

both ends of the fifth gear are rotatably connected with the shell, and the fifth gear is in meshing transmission connection with the fourth gear; and

the two ends of the sixth gear are rotatably connected with the shell, the sixth gear is in meshed transmission with the fifth gear, a seventh gear is coaxially arranged on the side of the sixth gear, the seventh gear and the sixth gear rotate simultaneously, the seventh gear is in meshed transmission with the first gear, and the seventh gear is used for driving the rotating rod to rotate.

6. The hand turn of claim 4, wherein a resilient member is disposed between said rocker arm and said housing, said resilient member being adapted to urge said rocker arm to swing away from said housing.

7. The hand reel of claim 2, wherein the locking mechanism comprises:

the clasping piece is arranged on the outer wall of the shell and is detachably connected with the rotating rod, and the clasping piece is used for clasping the rotating rod; and

and the ejecting piece penetrates through the shell and is used for ejecting and limiting the rotating rod.

8. The hand turn according to claim 2, wherein the actuating member is detachably connected to the rotating rod, the actuating member comprises a connecting portion connected to the rotating rod and an actuating portion for screwing a screw, and the actuating portion is provided with a notch structure in a straight line shape or a cross shape or a hexagonal shape.

9. The hand turn of claim 1, wherein the outer wall of the housing is provided with a hook and a V-shaped opening for pulling out a nail.

10. A hand reel as claimed in claim 1, wherein the outer side of the housing is provided with a saw blade, the saw blade is detachably connected to the housing, and the saw blade is provided with graduation marks.