CN112975808B - Screw driver - Google Patents

Abstract

The invention relates to the technical field of screwdrivers, and particularly discloses a screwdriver which comprises a shell, a rotating shaft, a poking component, a transmission component, a reversing component, a first handle and a second handle, wherein a through hole is formed in one side surface of the shell, and the rotating shaft penetrates through the through hole and is rotatably arranged in the shell; one end of the rotating shaft is provided with a screwdriver head, and the rotating shaft has a first state of forward rotation and a second state of reverse rotation; the stirring component can stir the rotating shaft; the first handle and the second handle are connected with the shifting component through the transmission component, and the first handle can enable the shifting component to shift the rotating shaft to rotate in a first state; the second handle can enable the toggle assembly to toggle the rotating shaft to rotate in a first state; the reversing assembly is used for switching the rotating shaft between a first state and a second state. Compared with the traditional manual screwdriver, the screwdriver has high efficiency, does not use a power supply, and can meet the requirement of long-term field work.

Description

Screwdriver

Technical Field

The invention relates to the technical field of screwdrivers, in particular to a screwdriver.

Background

In life, the figure of the screwdriver can be seen everywhere, the type of the screwdriver is also strange and various, and the screwdriver can be generally divided into two types: a manual screwdriver and an electric screwdriver.

The manual screwdriver is the most basic screwdriver type, has a simple structure and low cost, but has low operation efficiency; although the electric screwdriver is labor-saving and high in efficiency, the electric screwdriver is relatively dependent on a power supply and cannot be used once the electric screwdriver is not powered, so that the electric screwdriver is not suitable for the requirement of working in the field for a long time.

Disclosure of Invention

The invention aims to provide a screwdriver, and aims to solve the problems that in the prior art, a manual screwdriver is low in efficiency, and an electric screwdriver is not suitable for long-time outgoing work.

In order to achieve the purpose, the invention adopts the following technical scheme:

the present invention provides a screwdriver, comprising:

a shell, a through hole is arranged on one side surface of the shell,

the rotating shaft penetrates through the through hole and is rotatably arranged on the shell; one end of the rotating shaft is provided with a screwdriver head, and the rotating shaft has a first state of forward rotation and a second state of reverse rotation;

the poking assembly comprises a first poking piece and a second poking piece, the first poking piece and the second poking piece are both in a third state connected with the rotating shaft and a fourth state separated from the rotating shaft, and the first poking piece can poke the rotating shaft to rotate in the forward direction when in the third state; the second toggle piece can toggle the rotating shaft to rotate reversely when being in the third state;

the first handle and the second handle are hinged to the shell and arranged in a crossed mode;

the first handle and the second handle are connected with the poking component through the transmission component, and the first handle can enable the first poking component to poke the rotating shaft to rotate in the positive direction; the second handle can enable the second toggle piece to toggle the rotating shaft to rotate reversely;

and the reversing assembly is used for switching the rotating shaft between the first state of forward rotation and the second state of reverse rotation.

Optionally, the shifting assembly further comprises a first mounting seat and a second mounting seat, the first shifting member and the second shifting member are respectively slidably arranged on the first mounting seat and the second mounting seat, and both can shift the rotating shaft in a sliding process, and the first mounting seat can drive the first shifting member to contact with or separate from the rotating shaft; the second mounting seat can drive the second poking piece to be in contact with or separated from the rotating shaft.

Optionally, the screwdriver further comprises a first one-way wheel and a second one-way wheel, and the first one-way wheel and the second one-way wheel are arranged on the rotating shaft at intervals and can drive the rotating shaft to rotate in the forward direction and the reverse direction respectively; the first toggle piece and the second toggle piece are both racks and can toggle the first one-way wheel and the second one-way wheel respectively.

Optionally, the transmission assembly includes a first transmission member and a second transmission member, the first transmission member and the second transmission member are both rotatably connected to the housing, one end of the first handle is connected to one end of the first transmission member, and the other end of the first transmission member is connected to the first toggle member; one end of the second handle is connected with one end of the second transmission piece, and the other end of the second transmission piece is connected with the second poking piece.

Optionally, the reversing assembly includes a first button and a second button, and both the first button and the second button are slidably disposed on the housing; the first button can be abutted with the first transmission piece, the second button can be abutted with the second transmission piece, and the first button is used for unlocking the first transmission piece; the second button is used for unlocking the second transmission piece.

Optionally, a side surface of the housing, which is provided with the through hole, is provided with a first channel and a second channel, and the first transmission piece and the second transmission piece respectively penetrate through the first channel and the second channel; the first channel is provided with a first stopping groove, the second channel is provided with a second stopping groove, the first button can push the first transmission piece out of the first stopping groove, and the first poking piece is connected with the rotating shaft through the first transmission piece; the second button can push the second transmission piece out of the second cut-off groove, and the second toggle piece is connected with the rotating shaft through the second transmission piece.

Optionally, a first elastic member is arranged between the housing and the first transmission member, and the first elastic member enables the first transmission member to enter the first stopping groove and enables the first toggle member to be separated from the rotating shaft through the first transmission member; and a second elastic piece is arranged between the shell and the second transmission piece, and the second elastic piece can enable the second transmission piece to enter the second cut-off groove and can separate the second toggle piece from the rotating shaft through the second transmission piece.

Optionally, a third elastic element is arranged between the first handle and the second handle, and the third elastic element enables one end held by the first handle and one end held by the second handle to be separated from each other.

Optionally, the rotating shaft is inserted into an inner ring of a bearing, and an outer ring of the bearing is inserted into the through hole.

Optionally, one end of the rotating shaft is provided with a connecting groove, and one end of the screwdriver bit is inserted into the connecting groove.

The invention has the beneficial effects that:

the invention provides a screwdriver, which transmits acting force to a rotating shaft through the action of a first handle, a second handle and a transmission assembly, so that the rotating shaft can realize a first state of forward rotation and a second state of reverse rotation; wherein, the switching-over subassembly can switch the rotation direction of axis of rotation, compares traditional manual screwdriver efficient, and does not use the power, can satisfy the demand of long-term field work.

Drawings

FIG. 1 is a schematic structural view of a screwdriver according to an embodiment of the present invention;

FIG. 2 is a side (left) view of a screwdriver in an embodiment of the present invention;

FIG. 3 is a top view of the internal structure of the screwdriver in an embodiment of the present invention;

FIG. 4 is a right side view of the internal structure of the screwdriver in an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a first mounting base according to an embodiment of the present invention;

FIG. 6 is a left side view of FIG. 5;

FIG. 7 is a schematic structural diagram of a first toggle member according to an embodiment of the present invention;

FIG. 8 is a left side view of FIG. 7;

fig. 9 is a schematic structural view of a rotating shaft in an embodiment of the present invention.

In the figure:

1. a housing; 11. a through hole; 12. a first channel; 13. a second channel; 14. a first cut-off groove; 15. a second cut-off groove; 16. a first chute; 17. a second chute;

2. a rotating shaft; 21. connecting grooves; 22. a screwdriver bit;

31. a first handle; 311. a first through groove; 32. a second handle; 321. a second through groove; 33. a third elastic member;

41. a first mounting seat; 411. a first slider;

42. a second mounting seat; 421. a second slider;

43. a first toggle piece; 431. a first protrusion;

44. a second toggle piece; 441. a second protrusion;

51. a first one-way wheel; 52. a second one-way wheel;

61. a first transmission member; 62. a second transmission member;

71. a first elastic member; 72. a second elastic member;

81. a first button; 82. a second button.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Where the terms "first position" and "second position" are two different positions, and where a first feature is "over", "above" and "on" a second feature, it is intended that the first feature is directly over and obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

Example one

As shown in fig. 1 to 9, the present embodiment provides a screwdriver, which comprises a casing 1, a rotating shaft 2, a striking assembly, a transmission assembly, a reversing assembly, a first handle 31 and a second handle 32, wherein a through hole 11 is formed in one side surface of the casing 1, the rotating shaft 2 passes through the through hole 11, and is rotatably disposed in the casing 1; one end of the rotating shaft 2 is provided with a screwdriver bit 22, and the rotating shaft 2 has a first state of forward rotation around a first direction and a second state of reverse rotation; the toggle assembly has a third state connected with the rotating shaft 2 and a fourth state separated from the rotating shaft 2, and can toggle the rotating shaft 2 when the toggle assembly is in the third state; the first handle 31 and the second handle 32 are hinged to the shell 1 and arranged in a crossed mode, and the first handle 31 and the second handle 32 are similar to pliers in structure. The first handle 31 and the second handle 32 are connected with the toggle assembly through the transmission assembly, and the first handle 31 can enable the toggle assembly to toggle the rotating shaft 2 to rotate in a first state; the second handle 32 can enable the toggle assembly to toggle the rotating shaft 2 to rotate in a second state; the reversing assembly is used for switching the rotating shaft 2 between a first state of forward rotation and a second state of reverse rotation.

The acting force is transmitted to the rotating shaft 2 through the action of the first handle 31, the second handle 32 and the transmission component, so that the rotating shaft 2 can realize a first state of forward rotation around a first direction and a second state of reverse rotation; wherein, the switching-over subassembly can switch the rotation direction of axis of rotation 2, compares traditional manual screwdriver efficient, and does not use the power, can satisfy the demand of long-term field work.

Regarding the toggle assembly, in the present embodiment, preferably, the toggle assembly includes a first mounting seat 41, a second mounting seat 42, a first toggle member 43 and a second toggle member 44, and both the first mounting seat 41 and the second mounting seat 42 are slidably disposed in the housing 1 and can slide along the second direction; the first toggle piece 43 and the second toggle piece 44 are respectively arranged on the first installation seat 41 and the second installation seat 42 in a sliding manner, and can both slide along the third direction and toggle the rotating shaft 2 in the sliding process, and the first installation seat 41 can drive the first toggle piece 43 to be in contact with or separated from the rotating shaft 2; the second mounting seat 42 can drive the second toggle piece 44 to contact with or separate from the rotating shaft 2; the first handle 31 and the second handle 32 are connected to the first toggle member 43 and the second toggle member 44, respectively, through a transmission assembly. Under the action of the first handle 31, the first toggle element 43 can toggle the rotating shaft 2 to rotate forward when contacting the rotating shaft 2, and under the action of the second handle 32, the second toggle element 44 can toggle the rotating shaft 2 to rotate backward when contacting the rotating shaft 2. The arrangement is such that the first toggle member 43 toggles the rotating shaft 2 to rotate in the forward direction and the second toggle member 44 toggles the rotating shaft 2 to rotate in the reverse direction independently.

Specifically, the first mounting seat 41 is provided with a first slider 411 and a first slide rail, the first slider 411 is in sliding fit with the first sliding groove 16 of the housing 1, both sides of the first toggle piece 43 along the first direction are provided with first protrusions 431, and the first protrusions 431 can slide in the first slide rail along the third direction; the second mounting seat 42 is provided with a second sliding block 421 and a second sliding rail, the second sliding block 421 is in sliding fit with the second sliding groove 17 of the housing 1, the second toggle piece 44 is provided with second protrusions 441 on two sides along the first direction, and the second protrusions 441 can slide in the second sliding rail along the third direction.

Further, the screwdriver further comprises a first one-way wheel 51 and a second one-way wheel 52, wherein the first one-way wheel 51 and the second one-way wheel 52 are arranged on the rotating shaft 2 at intervals and can drive the rotating shaft 2 to rotate in the forward direction and the reverse direction respectively; the first toggle member 43 and the second toggle member 44 are both racks and can toggle the first one-way wheel 51 and the second one-way wheel 52, respectively. The device has simple structure and stable and reliable performance.

In one embodiment, the transmission assembly includes a first transmission member 61 and a second transmission member 62, the first transmission member 61 and the second transmission member 62 are both rotatably connected to the housing 1, one end of the first handle 31 is connected to one end of the first transmission member 61, and the other end of the first transmission member 61 is connected to the first toggle member 43; one end of the second handle 32 is connected to one end of the second transmission member 62, and the other end of the second transmission member 62 is connected to the second toggle member 44. Specifically, the first transmission piece 61 and the second transmission piece 62 are both rod-shaped, the first handle 31 and the second handle 32 are respectively provided with a first through groove 311 and a second through groove 321, one end of the first transmission piece 61 penetrates through the first through groove 311 and can slide in the first through groove 311; one end of the second transmission member 62 is inserted into the second through groove 321, and can slide in the second through groove 321. The first toggle piece 43 and the second toggle piece 44 are respectively provided with a third through groove and a fourth through groove, and the other end of the first transmission piece 61 penetrates through the third through groove and can slide in the third through groove; the other end of the second transmission member 62 is inserted into the third through-groove and can slide in the third through-groove.

Optionally, the reversing assembly includes a first button 81 and a second button 82, and both the first button 81 and the second button 82 are slidably disposed in the housing 1 and can slide along the second direction; the first button 81 can abut against the first transmission piece 61, the second button 82 can abut against the second transmission piece 62, and the first button 81 is used for unlocking the first transmission piece 61; the second push button 82 is used to unlock the second transmission piece 62. Specifically, a side surface of the housing 1 provided with the through hole 11 is provided with a first channel 12 and a second channel 13, and the first transmission piece 61 and the second transmission piece 62 respectively penetrate through the first channel 12 and the second channel 13; the first channel 12 is provided with a first stopping groove 14, the first stopping groove 14 is communicated with and vertical to the first channel 12, the second channel 13 is provided with a second stopping groove 15, and the second channel 13 is communicated with and vertical to the second stopping groove 15. The first button 81 can push the first transmission piece 61 out of the first cut-off groove 14 and connect and engage the first toggle piece 43 with the rotating shaft 2 through the first transmission piece 61; the second push button 82 can push the second transmission member 62 out of the second cut-off groove 15 and connect and engage the second toggle member 44 with the rotating shaft 2 through the second transmission member 62. The device is simple in reversing and convenient to operate.

A first elastic piece 71 is arranged between the shell 1 and the first transmission piece 61, the first elastic piece 71 enables the first transmission piece 61 to enter the first stopping groove 14, and the first poking piece 43 can be separated from the rotating shaft 2 through the first transmission piece 61; a second elastic member 72 is disposed between the housing 1 and the second transmission member 62, and the second elastic member 72 enables the second transmission member 62 to enter the second cut-off groove 15, and the second toggle member 44 can be separated from the rotating shaft 2 by the second transmission member 62. This arrangement enables the automatic locking state of the first transmission member 61 and the second transmission member 62.

Alternatively, the rotating shaft 2 is inserted through the inner ring of the bearing, and the outer ring of the bearing is inserted through the through hole 11. This setting makes axis of rotation 2 rotate more sensitively, and frictional force is little, uses laborsavingly. In this embodiment, the hinge point of the first handle 31 and the second handle 32 is coaxial with the bearing, that is, a hole is formed in the middle of the hinge shaft, and the outer ring of the bearing is sleeved with the hinge shaft after the hinge shaft hinges the first handle 31 and the second handle 32. This arrangement allows the first handle 31 and the second handle 32 to be rotated coaxially with the rotation shaft 2, and it is easier to apply force to screw the screw into the screw hole.

Preferably, one end of the rotation shaft 2 is provided with a connection groove 21, and one end of the screwdriver bit 22 is inserted into the connection groove 21. Wherein, the other end of the screwdriver bit 22 is cross-shaped or in-line. This arrangement allows the shaft 2 to be connected to different types of screwdriver bits 22. The practicality of this embodiment is improved.

Optionally, in this embodiment, referring to the view shown in fig. 3, the first direction is a horizontal direction, the second direction is a vertical direction, and the third direction is perpendicular to both the first direction and the second direction.

As for the operation principle of the present embodiment, specifically, in the initial state, under the action of the third elastic member 333, the included angle between the first handle 31 and the second handle 32 hinged to the housing 1 is at the maximum, and due to the action of the first elastic member 71 and the second elastic member 72, one end of the first transmission member 61 connected to the first through groove 311 of the first handle 31 is located at the first cut-off groove 14, and one end of the second transmission member 62 connected to the second through groove 321 of the second handle 32 is located at the second cut-off groove 15 (see fig. 4); the first toggle piece 43 is separated from the first one-way wheel 51; the second toggle 44 is disengaged from the second one-way wheel 52 (see fig. 3).

When the rotating shaft 2 needs to rotate in the forward direction, the first button 81 is pressed, the first button 81 pushes the first transmission piece 61 out of the first cut-off groove 14 and enters the first channel 12, and at this time, the first toggle piece 43 contacts the first one-way wheel 51 because the first mounting seat 41 slides in the direction approaching the first one-way wheel 51 under the action of the first transmission piece 61 and the first toggle piece 43. When the first handle 31 and the second handle 32 are held, the second handle 32 is not moved, the first handle 31 drives the first transmission piece 61 to slide in the first channel 12, because the first transmission piece 61 is rotationally connected to the housing 1, when one end of the first transmission piece 61 connected with the first handle 31 moves downwards, one end of the first transmission piece 61 connected with the first toggle piece 43 moves upwards, the first toggle piece 43 slides upwards in the first slide rail of the first mounting seat 41, the first one-way wheel 51 is toggled to rotate forwards in the sliding process, the first one-way wheel 51 drives the rotating shaft 2 to rotate forwards, the first handle 31 and the second handle 32 are released, one end of the first handle 31 and one end of the second handle 32 start to separate under the action of the third elastic piece 33, in the process, the outer periphery of the first one-way wheel 51 rotates reversely, but the rotating shaft 2 does not rotate, when the first transmission piece 61 does not reach the first stop groove 14, the first handle 31 and the second handle 32 are gripped again, and the second forward rotation of the rotating shaft 2 is achieved.

Similarly to the forward rotation process of the rotation shaft 2, when the reverse rotation of the rotation shaft 2 is required, the first handle 31 and the second handle 32 are completely released, and at this time, the first handle 31 and the second handle 32 are restored to the original state, one end of the first transmission member 61 connected to the first through groove 311 of the first handle 31 is located at the first cut-off groove 14, and one end of the second transmission member 62 connected to the second through groove 331 of the second handle 32 is located at the second cut-off groove 15. When the second button 82 is pressed, the second transmission member 62 slides into the second channel 13 from the second cut-off groove 15, the second toggle member 44 contacts with the second one-way wheel 52, the first handle 31 is fixed while the first handle 31 and the second handle 32 are held, the second handle 32 drives the second transmission member 62 to swing, and the second transmission member 62 drives the second toggle member 44 to move on the second slide rail of the second mounting seat 42, so as to drive the rotating shaft 2 to rotate reversely.

Example two

The present embodiment provides a screwdriver, which has substantially the same structure as the first embodiment, except that a third elastic member 33 is disposed between the first handle 31 and the second handle 32, and the third elastic member 33 separates the end held by the first handle 31 and the end held by the second handle 32. The third elastic member 33 may be a spring. This arrangement allows the front ends of the first and second handles 31 and 32 to be always separated when the user releases the first and second handles 31 and 32, and allows the first and second transmission members 61 and 62 to be located in the first and second cut-off grooves 14 and 15, respectively, by the first and second elastic members 71 and 72.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (9)

1. A screwdriver, comprising:

a shell (1), a through hole (11) is arranged on one side surface of the shell (1),

the rotating shaft (2) penetrates through the through hole (11) and is rotatably arranged on the shell (1); a screwdriver head (22) is arranged at one end of the rotating shaft (2), and the rotating shaft (2) has a first state of forward rotation and a second state of reverse rotation;

the poking assembly comprises a first poking piece (43) and a second poking piece (44), the first poking piece (43) and the second poking piece (44) are both in a third state connected with the rotating shaft (2) and in a fourth state separated from the rotating shaft (2), and the first poking piece (43) can poke the rotating shaft (2) to rotate in the forward direction when in the third state; the second toggle piece (44) can toggle the rotating shaft (2) to rotate reversely when being in the third state;

the first handle (31) and the second handle (32) are hinged to the shell (1) and arranged in a crossed mode;

the first handle (31) and the second handle (32) are connected with the toggle assembly through the transmission assembly, and the first handle (31) can enable the first toggle piece (43) to toggle the rotating shaft (2) to rotate forwards; the second handle (32) can enable the second toggle piece (44) to toggle the rotating shaft (2) to rotate reversely;

a reversing assembly for switching the rotary shaft (2) between the first state of forward rotation and a second state of reverse rotation;

the toggle assembly further comprises a first mounting seat (41) and a second mounting seat (42), the first toggle piece (43) and the second toggle piece (44) are respectively arranged on the first mounting seat (41) and the second mounting seat (42) in a sliding mode and can toggle the rotating shaft (2) in the sliding process, and the first mounting seat (41) can drive the first toggle piece (43) to be in contact with or separated from the rotating shaft (2); the second mounting seat (42) can drive the second poking piece (44) to be in contact with or separated from the rotating shaft (2).

2. The screwdriver according to claim 1, further comprising a first one-way wheel (51) and a second one-way wheel (52), wherein the first one-way wheel (51) and the second one-way wheel (52) are spaced apart from each other on the rotating shaft (2) and can respectively drive the rotating shaft (2) to rotate in the forward direction and in the reverse direction; the first toggle element (43) and the second toggle element (44) are both racks and can toggle the first one-way wheel (51) and the second one-way wheel (52) respectively.

3. Screwdriver according to claim 1, wherein said transmission assembly comprises a first transmission member (61) and a second transmission member (62), said first transmission member (61) and said second transmission member (62) being rotatably connected to said casing (1), one end of said first handle (31) being connected to one end of said first transmission member (61), the other end of said first transmission member (61) being connected to said first toggle member (43); one end of the second handle (32) is connected with one end of the second transmission piece (62), and the other end of the second transmission piece (62) is connected with the second toggle piece (44).

4. Screwdriver according to claim 3, characterized in that said reversing assembly comprises a first button (81) and a second button (82), said first button (81) and said second button (82) being slidingly arranged on said casing (1); the first button (81) can be abutted with the first transmission piece (61), the second button (82) can be abutted with the second transmission piece (62), and the first button (81) is used for unlocking the first transmission piece (61); the second button (82) is used for unlocking the second transmission piece (62).

5. Screwdriver according to claim 4, characterised in that the side of the housing (1) provided with the through hole (11) is provided with a first channel (12) and a second channel (13), the first transmission piece (61) and the second transmission piece (62) passing through the first channel (12) and the second channel (13), respectively; the first channel (12) is provided with a first stopping groove (14), the second channel (13) is provided with a second stopping groove (15), and the first button (81) can push the first transmission piece (61) out of the first stopping groove (14) and connect the first toggle piece (43) with the rotating shaft (2) through the first transmission piece (61); the second button (82) can push the second transmission piece (62) out of the second cut-off groove (15), and the second toggle piece (44) is connected with the rotating shaft (2) through the second transmission piece (62).

6. Screwdriver according to claim 5, characterised in that a first resilient member (71) is provided between the housing (1) and the first transmission member (61), the first resilient member (71) enabling the first transmission member (61) to enter the first catch groove (14) and the first toggle member (43) to be disengaged from the rotary shaft (2) by means of the first transmission member (61); a second elastic piece (72) is arranged between the shell (1) and the second transmission piece (62), the second elastic piece (72) enables the second transmission piece (62) to enter the second cut-off groove (15), and the second toggle piece (44) can be separated from the rotating shaft (2) through the second transmission piece (62).

7. Screwdriver according to any one of claims 1-6, characterised in that a third resilient member (33) is arranged between the first handle (31) and the second handle (32), which third resilient member (33) causes the end of the first handle (31) that is gripped and the end of the second handle (32) that is gripped to be separated from each other.

8. Screwdriver according to claim 7, characterised in that said rotating shaft (2) is inserted through the inner ring of a bearing whose outer ring is inserted through said through hole (11).

9. Screwdriver according to claim 8, wherein one end of the rotating shaft (2) is provided with a connecting slot (21), and one end of the screwdriver bit (22) is inserted into the connecting slot (21).

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