CN219768097U

CN219768097U - Ratchet screwdriver

Info

Publication number: CN219768097U
Application number: CN202321136666.0U
Authority: CN
Inventors: 钱贤平
Original assignee: Ningbo Decheng Tools Co ltd
Current assignee: Ningbo Decheng Tools Co ltd
Priority date: 2023-05-09
Filing date: 2023-05-09
Publication date: 2023-09-29
Anticipated expiration: 2033-05-09

Abstract

The utility model relates to the technical field of hardware tools, in particular to a ratchet screwdriver, which comprises: the utility model discloses a ratchet wheel reversing mechanism, which comprises two pawls, a holding piece, a rotating piece and a reversing component, wherein the rotating piece is rotatably arranged on the holding piece, one end of the holding piece, which is close to the rotating piece, is provided with a plurality of ratchet grooves which are annularly arranged, the two pawls are rotatably arranged at one end of the rotating piece, which is close to the holding piece, the rotating directions of the two pawls are opposite, when one pawl is clamped into the corresponding ratchet groove, the other pawl is separated from the corresponding ratchet groove reversing component, the sliding piece is arranged on the holding piece in a sliding way, and when the sliding piece reciprocates, the pawl which is clamped into the ratchet groove in advance is separated from the corresponding ratchet groove, and the pawl which is separated from the ratchet groove in advance is clamped into the corresponding ratchet groove, so that the switching of the unidirectional transmission direction of the ratchet wheel is realized.

Description

Ratchet screwdriver

Technical Field

The utility model relates to the technical field of hardware tools, in particular to a ratchet screwdriver.

Background

Screwdrivers are widely used as a hardware tool for tightening or loosening screws, and can be classified into hand screwdrivers and electric screwdrivers according to the driving method thereof. In the hand-screwed screwdriver, an operator needs to hold the screwdriver by hand and drive the screwdriver to rotate through circumferential rotation of the wrist and the forearm, so that screwing or unscrewing of the screw is realized. However, because the rotation of the wrist has a certain limit, the driver is difficult to rotate along the same direction all the time, the driver generally needs to separate the screwdriver from the screw, then rotate the wrist and reinsert the screwdriver into the screw and tighten or loosen the screw along the original direction, and the process is complicated.

In view of this, the manual screwdriver comprises a ratchet screwdriver, and by arranging a ratchet mechanism in the screwdriver, an operator does not need to loosen the handle of the screwdriver in the process of screwing or unscrewing the screw, and does not need to separate the screwdriver from the screw and insert the screwdriver into the screw for screwing after rotating the wrist. The original ratchet screwdriver is not provided with a reversing component, so that the screw in a certain single direction can be screwed, barriers such as a wall surface exist on one side of the screw, the distance between the screw and the barrier is smaller than the application situation of a fist distance, or an operator is difficult to screw the screw due to the fact that the unidirectional transmission direction of the ratchet is just towards one side of the barrier, and the situation that the application situation is limited exists.

Therefore, a need exists for a ratchet screwdriver with a reversing assembly that can adjust the unidirectional drive direction of the ratchet wheel, and that is suitable for a variety of application situations.

Disclosure of Invention

The utility model mainly aims to provide a ratchet screwdriver, wherein the ratchet screwdriver comprises two pawl assemblies, a screwdriver body and a reversing assembly, each pawl assembly comprises a pawl, the screwdriver body comprises a holding piece and a rotating piece, the rotating piece is rotatably arranged on the holding piece, one end of the holding piece, which is close to the rotating piece, is provided with a plurality of annular ratchet grooves, the two pawls are rotatably arranged at one end of the rotating piece, which is close to the holding piece, the rotating directions of the two pawls are opposite, the reversing assembly comprises a sliding piece, the sliding piece is slidably arranged on the holding piece, when the sliding piece slides for a preset distance, one pawl is clamped into the corresponding ratchet groove, the other pawl is separated from the corresponding ratchet groove, and the reversing of the unidirectional transmission direction is realized through the reciprocating sliding of the ratchet sliding piece.

The utility model further provides a ratchet screwdriver, wherein the reversing assembly further comprises a swinging piece, the middle section of the swinging piece is rotatably arranged on the rotating piece, two ends of the swinging piece are respectively provided with a rope, the ropes are in one-to-one correspondence with the pawls, two ends of each rope are respectively connected with the swinging piece and the corresponding pawls, the sliding piece is positioned at one end of the swinging piece, which is away from the holding piece, and is contacted with the end part of the swinging piece, when the sliding piece slides, one end of the swinging piece is tilted upwards and the corresponding pawl is pulled out of the ratchet groove, the other end of the swinging piece is swung downwards, the pawl corresponding to the swinging piece is clamped into the ratchet groove, and the sliding piece is connected with the two pawls in a moving way through the swinging piece and the ropes.

Another object of the present utility model is to provide a ratchet screwdriver, wherein one end of the sliding member near the swinging member has a first inclined plane and a second inclined plane, the inclination of the first inclined plane is the same as that of the second inclined plane, and the direction of the first inclined plane is opposite to that of the second inclined plane, and the first inclined plane and the second inclined plane are both in contact with the swinging member.

In order to achieve at least one of the above objects, the present utility model provides a ratchet screwdriver, wherein the ratchet screwdriver comprises:

two pawl assemblies, each of which includes a pawl;

the screwdriver body comprises a holding piece and a rotating piece, the rotating piece is rotatably arranged on the holding piece, one end of the holding piece, which is close to the rotating piece, is provided with a plurality of ratchet grooves which are annularly arranged, two pawls are rotatably arranged at one end of the rotating piece, which is close to the holding piece, and the rotating directions of the two pawls are opposite; and

the reversing assembly comprises a sliding piece, the sliding piece is arranged on the holding piece in a sliding mode, and when the sliding piece slides a preset distance, one pawl is clamped into the corresponding ratchet tooth groove, and the other pawl is separated from the corresponding ratchet tooth groove.

In one or more embodiments of the present utility model, the reversing assembly further includes a swinging member, a middle section of the swinging member is rotatably mounted on the rotating member, two ends of the swinging member are respectively provided with a rope, the ropes are in one-to-one correspondence with the pawls, two ends of each rope are respectively connected with the swinging member and the corresponding pawl, the sliding member is located at one end of the swinging member, which is away from the holding member, and is in contact with an end of the swinging member, when the sliding member slides, one end of the swinging member is tilted up and pulls the corresponding pawl out of the ratchet groove, and the other end of the swinging member is swung down, and the pawl corresponding to the swinging member is clamped into the ratchet groove.

In one or more embodiments of the present utility model, an end of the sliding member near the swinging member has a first inclined surface and a second inclined surface, the first inclined surface and the second inclined surface have the same inclination and opposite directions, and the first inclined surface and the second inclined surface are both in contact with the swinging member.

In one or more embodiments of the present utility model, each of the pawl assemblies further includes a first elastic member, and two ends of the first elastic member are respectively connected to the rotating member and the corresponding pawl, and the first elastic members of the two pawl assemblies are opposite to each other.

In one or more embodiments of the present utility model, the rotating member has a through chute and a swinging chute, the chute is in communication with the swinging chute, the sliding member is slidably disposed in the chute, and the swinging member swings in the swinging chute.

In one or more embodiments of the present utility model, one end of the sliding member, which is away from the swinging member, is provided with a plurality of first clamping grooves and a plurality of second clamping grooves, the first clamping grooves and the second clamping grooves are arranged at intervals, the reversing assembly further comprises a plurality of clamping assemblies, each clamping assembly comprises a second elastic member and a clamping member, two ends of the second elastic member are respectively connected with the clamping member and the rotating member, and when the sliding member slides for a predetermined distance, each clamping member is clamped into the corresponding first clamping groove or the corresponding second clamping groove.

In one or more embodiments of the present utility model, both ends of the sliding groove are provided with a plurality of blocking portions, and when the sliding piece abuts against one blocking portion, one pawl is blocked into the corresponding ratchet groove, and the other pawl is separated from the corresponding ratchet groove.

In one or more embodiments of the present utility model, one end of the sliding member has a plurality of guide holes, each of the blocking portions at one end of the sliding slot is provided with a guide rod, the guide rods are in one-to-one correspondence with the guide holes, and each of the guide rods extends into the corresponding guide hole.

In one or more embodiments of the present utility model, an end of the rotating member facing away from the holding member has a mounting groove for placing a batch head, and an end of the holding member facing away from the rotating member has a receiving cavity with an opening.

In one or more embodiments of the present utility model, the ratchet screwdriver further includes a sealing plug, one end of which is rotatably mounted on the grip, and the sealing plug closes or opens the receiving cavity when the sealing plug is rotated by a predetermined angle.

In the embodiment of the utility model, the ratchet screwdriver comprises two pawls, a holding piece, a rotating piece and a reversing component, wherein the rotating piece is rotatably arranged on the holding piece, one end of the holding piece, which is close to the rotating piece, is provided with a plurality of ratchet grooves which are annularly arranged, the two pawls are rotatably arranged at one end of the rotating piece, which is close to the holding piece, the rotating directions of the two pawls are opposite, when one pawl is clamped in the corresponding ratchet groove, the other pawl is separated from the corresponding ratchet groove reversing component, the sliding piece is arranged on the holding piece in a sliding way, when the sliding piece reciprocates, the pawl which is clamped in the ratchet groove in advance is separated from the corresponding ratchet groove, and the pawl which is separated from the ratchet groove in advance is clamped in the corresponding ratchet groove, so that the switching of the unidirectional transmission direction of the ratchet is realized, and the ratchet screwdriver is suitable for various application situations.

Drawings

These and/or other aspects and advantages of the present utility model will become more apparent and more readily appreciated from the following detailed description of the embodiments of the utility model, taken in conjunction with the accompanying drawings, wherein:

FIG. 1 illustrates a schematic diagram of a ratchet screwdriver according to an embodiment of the present utility model;

FIG. 2 illustrates a cross-sectional view at the pawl assembly;

fig. 3 illustrates a schematic internal structure of the rotary member.

Description of the embodiments

The terms and words used in the following description and claims are not limited to literal meanings, but are used only by the inventors to enable a clear and consistent understanding of the utility model. It will be apparent to those skilled in the art, therefore, that the following description of the various embodiments of the utility model is provided for illustration only and not for the purpose of limiting the utility model as defined by the appended claims and their equivalents.

It will be understood that the terms "a" and "an" should be interpreted as referring to "at least one" or "one or more," i.e., in one embodiment, the number of elements may be one, while in another embodiment, the number of elements may be plural, and the term "a" should not be interpreted as limiting the number.

Although ordinal numbers such as "first," "second," etc., will be used to describe various components, those components are not limited herein. The term is used merely to distinguish one component from another. For example, a first component may be referred to as a second component, and likewise, a second component may be referred to as a first component, without departing from the teachings of the inventive concept. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

The terminology used herein is for the purpose of describing various embodiments only and is not intended to be limiting. As used herein, the singular is intended to include the plural as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, or groups thereof.

Summary of the application

The existing ratchet screwdriver is not provided with a reversing component, so that the screw in a certain single direction can be screwed, barriers such as a wall surface exist on one side of the screw, the distance between the screw and the barrier is smaller than the application situation of a fist distance, or the operator is difficult to screw due to the fact that the unidirectional transmission direction of the ratchet is just towards one side of the barrier, and the situation that the application situation is limited exists.

Based on the technical problems, the utility model provides the ratchet screwdriver, wherein the ratchet screwdriver has a simple structure, does not relate to complex manufacturing process and expensive materials, has higher economical efficiency, is easy to produce for manufacturers, has low cost, is more beneficial to controlling the production cost, and is further beneficial to product popularization and use.

An exemplary ratchet screw driver is shown in the drawings,

referring to fig. 1 to 3, a ratchet screwdriver according to a preferred embodiment of the present utility model includes two pawl assemblies 10, a screwdriver body and a reversing assembly 20, each of the pawl assemblies 10 includes a pawl 101, the screwdriver body includes a holding member 30 and a rotating member 40, the rotating member 40 is rotatably mounted on the holding member 30, one end of the holding member 30 near the rotating member 40 has a plurality of ratchet slots 301 arranged in a ring shape, both of the pawls 101 are rotatably mounted on one end of the rotating member 40 near the holding member 30, and the rotation directions of the two pawls 101 are opposite, the reversing assembly 20 includes a sliding member 201, the sliding member 201 is slidably disposed on the holding member 30, and when one of the pawls 101 is snapped into the corresponding ratchet slot 301 after the sliding member 201 slides a predetermined distance, the other pawl 101 is disengaged from the corresponding ratchet slot 301.

It should be noted that, assuming that the slider 201 is located at one end of the rotating member 40 at this time, and that one pawl 101 is clamped into the corresponding ratchet slot 301 at this time, the other pawl 101 is separated from the corresponding ratchet slot 301, when the slider 201 slides onto the other rotating member 40, the pawl 101 originally clamped into the corresponding ratchet slot 301 is separated from the ratchet slot 301, and the pawl 101 originally separated from the ratchet slot 301 is clamped into the corresponding ratchet slot 301, so as to realize reversing of the ratchet transmission direction.

In addition, in order to realize that the pawl 101 is rotatably mounted on the rotating member 40, as shown in fig. 2, one end of the rotating member 40, which is close to the holding member 30, is provided with two swinging notches 401, each swinging notch 401 is provided with a pin shaft (not shown in the drawing), the pin shafts are fixedly connected with the rotating member 40, the fixed connection manner includes, but is not limited to, welding, one end of the pawl 101 is rotatably mounted on the pin shaft, and the other end of the pawl 101 extends out of the swinging notch 401 by a predetermined distance.

In addition, as shown in fig. 2, each of the pawl assemblies 10 further includes a first elastic member 102, two ends of the first elastic member 102 are respectively connected with the rotating member 40 and the corresponding pawl 101, the directions of the first elastic members 102 in the two pawl assemblies 10 are opposite, specifically, one side of each swing notch 401 is provided with a positioning groove 402, the positioning groove 402 is communicated with the swing notch 401, and each positioning groove 402 is internally provided with one first elastic member 102, and it is also required to supplement that when the pawl 101 is clamped into the ratchet groove 301, the first elastic member 102 is in an undeformed state. For a brief description of the unidirectional transmission of the pawl assembly 10 with reference to fig. 2, it is apparent that, when the pawl 101 on the right side of fig. 2 is engaged in the corresponding ratchet groove 301, and the holding member 30 rotates in the counterclockwise direction, the rotating member 40 follows the holding member 30 to rotate synchronously in the counterclockwise direction because the groove of the ratchet groove 301 abuts against the side of the pawl 101 near the first elastic member 102; when the grip 30 is rotated in the clockwise direction as shown, the pawl 101 is deformed by the force from the groove of the ratchet groove 301 and swings in the instantaneous needle direction, at this time, the first elastic member 102 is compressed, and at a certain moment, the ratchet groove 301 passes the ratchet, the rotary member 40 rotates by a predetermined angle in the clockwise direction, and it is also pointed out that at this time, the rotary member 40 does not rotate under the resistance of the screw, and when the resistance of the screw is insufficient to offset the thrust provided by the first elastic member 102 to the rotary member 40, the operator can manually grip the rotary member 40 and rotate the grip 30.

In addition, in this embodiment, a circular cavity (not shown) is formed on the surface of the holding member 30 having the ratchet grooves 301, each ratchet groove 301 surrounds the periphery of the circular cavity, the circular cavity is communicated with each ratchet groove 301, and one end of the rotating member 40 near the holding member 30 extends into the circular cavity.

In addition, in order to realize the rotatable member 40 being rotatably mounted on the holding member 30, as shown in fig. 1, an insertion hole 403 is formed at an end of the rotatable member 40 near the holding member 30, the insertion hole 403 includes a bearing hole, a connecting hole and a limiting hole, the connecting hole is located between the bearing hole and the limiting hole, two ends of the connecting hole are respectively communicated with the bearing hole and the limiting hole, a protrusion 302 is formed on a bottom wall of the circular cavity, a deformation portion 3021 is formed at a top of the protrusion 302, the protrusion 302 is made of plastic and has a certain elasticity, the protrusion 302 sequentially penetrates through the bearing hole and the connecting hole, and the deformation portion 3021 stretches into the limiting hole, wherein the deformation portion 3021 is partially deformed to enter the limiting hole when penetrating through the connecting hole, so as to realize the rotatable member 40 being rotatably mounted on the holding member 30, and avoid the rotatable member 40 being separated from the holding member 30 when the rotatable member 40 faces the ground.

Further, in order to realize that after the sliding member 201 slides a predetermined distance, when one pawl 101 is clamped into the corresponding ratchet groove 301, the other pawl 101 is separated from the corresponding ratchet groove 301, as shown in fig. 3, the reversing assembly 20 further includes a swinging member 202, the middle section of the swinging member 202 is rotatably mounted on the rotating member 40, as shown in fig. 1 to 3, both ends of the swinging member 202 are respectively provided with a rope 2021, the rope 2021 is in one-to-one correspondence with the pawls 101, both ends of each rope 2021 are respectively connected with the swinging member 202 and the corresponding pawl 101, it is emphasized that the rope 2021 is preferably a wire rope which is not easy to be plastically deformed after being pulled, the sliding member 201 is located at one end of the swinging member 202, which is separated from the holding member 30, and the sliding member 201 is in contact with the end of the swinging member 202, when the sliding member 201 slides, one end of the swinging member 202 is tilted up by a predetermined angle and pulls the corresponding rope 2021, and the corresponding pawl 2021 is pulled out of the corresponding pawl 202, and the other end of the pawl is in a predetermined state of the ratchet groove 101 is pulled out, and the ratchet groove 101 is simultaneously in a predetermined state of the ratchet groove 301, and the ratchet groove is in the elastic state of the corresponding pawl 101.

More specifically, in order to achieve the sliding of the sliding member 201, one end of the swinging member 202 is tilted up, and the other end of the swinging member 202 is tilted down, as shown in fig. 1 and 3, one end of the sliding member 201, which is close to the swinging member 202, has a first inclined surface 2011 and a second inclined surface 2012, the inclination of the first inclined surface 2011 and the inclination of the second inclined surface 2012 are the same and opposite, and at least one point of each of the first inclined surface 2011 and the second inclined surface 2012 is in contact with the swinging member 202. Referring to fig. 3, it is assumed that at this time, the first inclined surface 2011 is the highest point and contacts with one end of the swinging member 202, then the other end of the swinging member 202 is the lowest point and contacts with the second inclined surface 2012, and one end of the swinging member 202, which contacts with the first inclined surface 2011, is tilted upward, the corresponding pawl 101 is disengaged from the ratchet groove 301, one end of the swinging member 202, which contacts with the second inclined surface 2012, is swung downward, and the corresponding pawl 101 is snapped into the ratchet groove 301; it is assumed that, when the slider 201 slides, the first inclined surface 2011 gradually moves from the highest point to the lowest point, and at the same time, the second inclined surface 2012 moves from the lowest point to the highest point, and when the lowest point of the first inclined surface 2011 contacts the swinging member 202 and the highest point of the second inclined surface 2012 contacts the swinging member 202, the end of the swinging member 202 contacting the first inclined surface 2011 changes from the previous upturned to the upturned, and the end of the swinging member 202 contacting the second inclined surface 2012 changes from the previous upturned to the upturned, and the corresponding pawl 101 acts, so as to realize the reversing of the ratchet transmission direction.

It should be noted that, compared to the prior art that only a single ratchet transmission direction can be achieved, in the embodiment of the present utility model, the sliding member 201, the swinging member 202 and the rope 2021 link the swinging member 202 with the corresponding movement of the pawl 101 to achieve the direction change of the ratchet transmission direction, and in some application situations that the sliding member slides and can only rotate unidirectionally, the embodiment of the present utility model can achieve the screwing of the screw by making the sliding member slide and adjust to the corresponding ratchet transmission direction, and has the advantage of having the direction change component 20, being capable of adjusting the unidirectional transmission direction of the ratchet, and being suitable for various application situations.

Further, in order to realize that the sliding member 201 is slidably disposed on the rotating member 40, the swinging member 202 is rotatably mounted on the rotating member 40, as shown in fig. 1 and 3, the rotating member 40 has a through sliding slot 404 and a swinging slot 405, the sliding slot 404 is communicated with the swinging slot 405, the sliding member 201 is slidably disposed in the sliding slot 404, the swinging member 202 swings in the swinging slot 405, it should be noted that, as shown in fig. 2, one end of the rotating member 40 provided with the pawl further has a wire guiding slot 409, and the wire guiding slot 409 is communicated with the swinging slot 405, so that two ends of the rope are respectively connected with the swinging member 202 and the pawl 101, wherein the rope 2021 passes through the wire guiding slot 409.

In addition, in order to fix the position of the sliding member 201, that is, after the sliding member 201 slides to a predetermined position, the corresponding pawl 101 is clamped into the ratchet slot 301, as shown in fig. 1 and 3, one end of the sliding member 201, which faces away from the swinging member 202, has a plurality of first clamping slots 2013 and a plurality of second clamping slots 2014, the first clamping slots 2013 and the second clamping slots 2014 are arranged at intervals, the reversing component 20 further includes a plurality of clamping components, as shown in fig. 1, each clamping component includes a second elastic member 2015 and a first clamping member 2016, two ends of the second elastic member 2015 are respectively connected with the clamping members 2016 and the rotating member 40 in a welding manner, and after the sliding member 201 slides a predetermined distance, each clamping member 2016 is clamped into the corresponding first clamping slot 2013 or the corresponding second clamping slot 2014, wherein, when the first clamping member is clamped into the corresponding to the first clamping slot 2013, the second clamping slot 2014 is in a direction opposite to the first direction, and the second clamping slot 2014 is in a one-way, and when the first clamping member 2014 is clamped into the corresponding to the first clamping slot 2014, the first direction is in a one-way, and the second direction is opposite to the first direction and the second direction is the first direction is opposite to the first direction and the second direction is opposite to the first direction.

Since the sliding groove 404 is penetrated, in order to prevent the user from forcefully getting too large and making the sliding member 201 separate from the sliding groove 404, as shown in fig. 1 and 3, both ends of the sliding groove 404 are provided with a plurality of blocking portions 406, when the sliding member 201 slides a predetermined distance, the sliding member 201 abuts against the blocking portions 406, so as to avoid the sliding member 201 separating from the sliding groove 404, in addition, when the sliding member 201 abuts against one blocking portion 406, one pawl 101 is blocked into the corresponding ratchet groove 301, and when the other pawl 101 is blocked into the corresponding ratchet groove 301, the other pawl 101 is blocked into the corresponding first blocking groove 2013 or the second blocking groove 2014, and the blocking member 2016 is blocked into the first blocking groove 2013 or the second blocking groove 2014.

Further, since the end of the sliding member 201 near the holding member 30 is the first inclined surface 2011 and the second inclined surface 2012, and the contact area between the sliding member 201 and the bottom wall of the sliding slot 404 is smaller, in order to ensure the stability of the sliding member 201 in the sliding process, one end of the sliding member 201 has a plurality of guiding holes, as shown in fig. 1, each blocking portion 406 at one end of the sliding slot 404 is provided with a guiding rod 407, and the guiding rods 407 are in one-to-one correspondence with the guiding holes, and each guiding rod 407 extends into the corresponding guiding hole.

Further, as shown in fig. 1, an end of the rotating member 40 facing away from the holding member 30 has a mounting groove 408 for placing the bits, a magnet embedding groove for placing a magnet is formed at a bottom of the mounting groove 408, an end of the holding member 30 facing away from the rotating member 40 has a receiving cavity 303 with an opening, and the receiving cavity 303 is used for placing bits with different specifications and different types.

Further, as shown in fig. 1, the ratchet screwdriver further includes a sealing plug 3031, one end of the sealing plug 3031 is rotatably mounted on the holding member 30, and when the sealing plug 3031 rotates by a predetermined angle, the sealing plug 3031 closes or opens the accommodating cavity 303, and the sealing plug 3031 is preferably made of rubber.

In summary, the ratchet screwdriver according to the embodiments of the present utility model is illustrated, which provides a reversing component for the ratchet screwdriver, so that the unidirectional driving direction of the ratchet can be adjusted, and the ratchet screwdriver is suitable for various application situations.

It should be noted that in the embodiment of the utility model, the ratchet screwdriver has a simple structure, does not involve complex manufacturing process and expensive materials, and has higher economy. Meanwhile, for manufacturers, the ratchet screwdriver provided by the utility model is easy to produce, low in cost, more beneficial to control the production cost and further beneficial to product popularization and use.

It will be appreciated by persons skilled in the art that the embodiments of the utility model described above and shown in the drawings are by way of example only and are not limiting. The objects of the present utility model have been fully and effectively achieved. The functional and structural principles of the present utility model have been shown and described in the examples and embodiments of the utility model may be modified or practiced without departing from such principles.

Claims

1. A ratchet screwdriver, characterized in that: the ratchet screwdriver comprises

Two pawl assemblies, each of which includes a pawl;

2. The ratcheting screwdriver of claim 1, wherein: the reversing assembly further comprises a swinging piece, the middle section of the swinging piece is rotatably installed on the rotating piece, ropes are respectively arranged at the two ends of the swinging piece and correspond to the pawls one by one, the two ends of each rope are respectively connected with the swinging piece and the corresponding pawl, the sliding piece is located at one end of the swinging piece, which is away from the holding piece, and is in contact with the end part of the swinging piece, when the sliding piece slides, one end of the swinging piece is tilted upwards and the corresponding pawl is pulled out of the ratchet groove, the other end of the swinging piece swings downwards, and the pawl corresponding to the swinging piece is clamped into the ratchet groove.

3. The ratcheting screwdriver of claim 2, wherein: the sliding piece is close to one end of the swinging piece and is provided with a first inclined plane and a second inclined plane, the inclination of the first inclined plane is the same as that of the second inclined plane, the directions of the first inclined plane and the second inclined plane are opposite, and the first inclined plane and the second inclined plane are both in contact with the swinging piece.

4. The ratcheting screwdriver of claim 2, wherein: each pawl assembly further comprises a first elastic piece, two ends of the first elastic piece are respectively connected with the rotating piece and the corresponding pawl, and the directions of the first elastic pieces in the two pawl assemblies are opposite.

5. A ratchet screwdriver according to claim 3, wherein: the rotating piece is provided with a through chute and a swinging groove, the chute is communicated with the swinging groove, the sliding piece is arranged in the chute in a sliding way, and the swinging piece swings in the swinging groove.

6. The ratcheting screwdriver of claim 5, wherein: the sliding part deviates from one end of the swinging part and is provided with a plurality of first clamping grooves and a plurality of second clamping grooves, the first clamping grooves are arranged at intervals with the second clamping grooves, the reversing assembly further comprises a plurality of clamping assemblies, each clamping assembly comprises a second elastic part and a clamping part, two ends of the second elastic part are respectively connected with the clamping parts and the rotating parts, and after the sliding part slides for a preset distance, each clamping part is clamped into the corresponding first clamping groove or the corresponding second clamping groove.

7. The ratcheting screwdriver of claim 6, wherein: and a plurality of blocking parts are arranged at two ends of the sliding groove, and when the sliding piece is abutted against one blocking part, one pawl is clamped into the corresponding ratchet tooth groove, and the other pawl is separated from the corresponding ratchet tooth groove.

8. The ratcheting screwdriver of claim 7, wherein: one end of the sliding piece is provided with a plurality of guide holes, each blocking part at one end of the sliding groove is provided with a guide rod, the guide rods are in one-to-one correspondence with the guide holes, and each guide rod extends into the corresponding guide hole.

9. A ratchet screwdriver according to any one of claims 1 to 8, wherein: one end of the rotating piece, which is away from the holding piece, is provided with a mounting groove for placing the batch head, and one end of the holding piece, which is away from the rotating piece, is provided with a containing cavity with an opening.

10. The ratcheting screwdriver of claim 9, wherein: the ratchet screwdriver further comprises a sealing plug, one end of the sealing plug is rotatably arranged on the holding piece, and when the sealing plug rotates for a preset angle, the sealing plug closes or opens the containing cavity.