CN213106658U

CN213106658U - Multifunctional combined electric wrench

Info

Publication number: CN213106658U
Application number: CN202021297559.2U
Authority: CN
Inventors: 姜小华
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-06
Filing date: 2020-07-06
Publication date: 2021-05-04
Anticipated expiration: 2030-07-06

Abstract

The utility model discloses a multifunctional combined electric wrench, which comprises a wrench shell, a tool piece, a motor component, a first transmission component and a second transmission component, wherein the motor component, the first transmission component and the second transmission component are arranged in the wrench shell; the first transmission assembly is connected with the motor assembly; the second transmission assembly is connected with the first transmission assembly; the second transmission assembly is provided with a hollow sleeve which can drive the tool piece to rotate. Through this many function combination electric spanner, make a plurality of tool pieces be in different angles, guaranteed that this combination tool also can the operation in narrow operating space, can not receive the restriction of operation object length when carrying out the operation simultaneously, use the scene many units.

Description

Multifunctional combined electric wrench

Technical Field

The utility model relates to an engineering articles for use, especially a many function combination electric spanner.

Background

The electric wrench is a common engineering tool, and the tool can be combined with components such as a drill bit, a screwdriver, a wrench and the like, and can be widely applied to various engineering operations. When the hexagonal socket is combined with a hexagonal socket to be used as an electric wrench, the hexagonal socket is a tool for screwing or disassembling bolts and can be used for fastening and disassembling construction for installing the hexagonal bolts such as steel structure bridges, factory buildings, chemical engineering, power generation equipment and the like; the screwdriver and other tools with different specifications and models are installed for use under other use conditions that screws need to be screwed or disassembled.

The existing tools such as a wrench and the like, one of which is a tool which can not be electrically and manually shared, can not be used under the condition of no electricity or damage of a motor, one of which can not simultaneously comprise a plurality of tools such as a wrench, a screwdriver and the like, has a single use scene, and the other of which is a functional part without multiple angles, when the tool is in a narrow environment, the tool cannot be used, the existing tool lacks a functional piece which can satisfy the requirements of electric operation and manual operation at the same time, a screw can extend out from the center and multiple angles, and can replace powerful combination tools such as drills, screwdrivers, wrenches and the like, the existing electric tools and manually available tools, when the screw cap is screwed, the screw head is slightly extended out and cannot be used, which is the biggest defect of common sleeves and earlier head-replaceable wrenches, and the wrench is clumsy when being operated manually, and has single function combination and angle.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to not enough among the prior art, a many function combination electric spanner is provided with the first casing and the second casing that are each other and buckle the setting, inside first drive assembly and the second drive assembly of being provided with respectively of casing, be provided with a plurality of tools in addition, arrange a plurality of tools respectively in the mount pad of being connected with different drive assemblies on, this kind of connected mode makes a plurality of tools be in different angles, even guaranteed this combination tool also can the operation in constrictive operating space.

The utility model provides a following technical scheme: a multifunctional combined electric wrench comprises a wrench shell, a tool piece, a motor assembly, a first transmission assembly and a second transmission assembly, wherein the motor assembly, the first transmission assembly and the second transmission assembly are arranged in the wrench shell; the first transmission assembly is connected with the motor assembly; the second transmission assembly is connected with the first transmission assembly; the second transmission assembly is provided with a hollow sleeve which can drive the tool piece to rotate.

Preferably, the hollow sleeve has a connecting passage therein for the tool connecting end to pass through.

Preferably, the tool piece includes, but is not limited to, a screwdriver bit, a drill bit, and a socket connection.

Preferably, the wrench shell comprises a first shell and a second shell which are mutually bent, the motor component and the first transmission component are arranged in the first shell, the second transmission component is arranged in the second shell, a first connection area is arranged at the end part of the first shell, and the tool piece can be detachably connected with the first connection area.

Preferably, the first housing and the second housing axis are arranged at 90 degrees.

Preferably, a first bevel gear is arranged at the end part of the first transmission assembly, and a second bevel gear meshed with the first bevel gear is arranged at the upper end part of the second transmission assembly.

Preferably, the second transmission assembly comprises a rotating part, a shaft gear arranged around the outer side of the rotating part, and a locking structure capable of locking the rotating part in a unidirectional rotation mode.

Preferably, the locking structure includes a first locking member, a second locking member, and a switching member that can control engagement or disengagement of the first locking member and/or the second locking member with or from the shaft gear.

Preferably, one end of the first locking piece is connected with the second shell, and the other end of the first locking piece can be clamped with or separated from the shaft gear under the action of the switching piece.

Preferably, the first locking piece and the second locking piece are respectively arranged on two sides of the switching piece, one side of the first locking piece is in contact with the inside of the second shell through an elastic piece, and the other side of the first locking piece can be extruded by the switching piece to drive the end part to be separated from the shaft gear.

Preferably, the multifunctional combined electric wrench further comprises a rotating channel arranged in the first housing and a manual rotating rod which can be connected with the first transmission assembly through the rotating channel.

The utility model discloses gain following beneficial effect:

(1) the utility model discloses a many function combination electric spanner, be provided with and be the first casing and the second casing that buckle and set up each other, inside first drive assembly and the second drive assembly of being provided with respectively of casing, be provided with a plurality of tools in addition, arrange a plurality of tools respectively in on the mount pad of being connected with different drive assemblies, this kind of connected mode makes a plurality of tools be in different angles, for example can be in with spanner casing parallel or under the vertically state, the adaptable various constrictive operational environment of this spanner has been guaranteed, even also can normally operate in the unable environment of transversely placing of transmission spanner, the use scene is many yuan. In addition, the tool piece is installed by adopting the rotatable hollow sleeve, the hollow sleeves with various sizes and screwdriver bits and drill bits with different types can be matched and replaced, and the tool piece is not limited by the length of a screw when in operation, such as screwing a screw cap.

(2) The second transmission structure of the utility model is provided with a locking structure, the engagement of the shaft gear connected with the rotating part can be controlled through the locking structure, and the one-way and two-way rotation of the second transmission structure and the tool part connected with the second transmission structure can be controlled, so that the manual work can be realized by converting the locking structure under the condition of no electricity or motor damage;

additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:

FIG. 1 is a schematic view of the multi-functional combined electric wrench according to an embodiment of the present invention;

FIGS. 2-4 are sectional views of the multifunctional combined electric wrench for installing different tools;

fig. 5 is a schematic structural diagram of a first transmission assembly according to the present invention;

fig. 6 is a schematic structural diagram of a second transmission assembly according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a first transmission structure and a second transmission structure according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of an embodiment of the locking structure of the present invention;

fig. 9 is a schematic structural diagram of an embodiment of the switching member of the present invention;

fig. 10 is a schematic structural view of an embodiment of the connecting channel and the manual rotating rod of the present invention.

In the drawing, 1, a wrench housing, 2, a tool piece, 3, a motor assembly, 4, a first transmission assembly, 5, a second transmission assembly, 6, a first connection area, 7, a hollow sleeve, 8, a connection channel, 9, a manual rotating rod, 11, a first housing, 12, a second housing, 41, a first transmission structure, 42, a first mounting seat, 51, a second transmission structure, 52, a second mounting seat, 411, a first bevel gear, 511, a second bevel gear, 514, a rotating piece, 512, a shaft gear, 513, a locking structure, 5131, a first locking piece, 5132, a second locking piece, 5133, a switching piece, 5134, an elastic piece, 5135, a pressing part and 5136 a control part.

Detailed Description

In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined below to clearly and completely describe the technical solution of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; 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 meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one.

The combination tool is a common engineering apparatus, this tool spanner can make the screw wirelessly extend from the heart when screwing the nut, can make up such as screwdriver again, but parts such as drill bit and multi-angle operation, can use in various engineering operations, when it combines the hexagonal section of thick bamboo to use as electric spanner, be a instrument of screwing up or dismantling the bolt nut, can be used in such as steel construction bridge, factory building, the confinement and the dismantlement of installation hexagonal head bolt nut construction such as machine assembly dismantlement, other service conditions such as needs are screwed up or are dismantled then the instrument of different specification models such as installation screwdriver uses. The existing tools such as a wrench and the like, one of which is a tool which can not be electrically and manually shared, can not be used under the condition of no electricity or damage of a motor, one of which can not simultaneously comprise a plurality of tools such as a wrench, a screwdriver and the like, has a single use scene, and the other of which is a functional part without multiple angles, when the tool is in a narrow environment, the tool cannot be used, the existing tool lacks a functional piece which can satisfy the requirements of electric operation and manual operation at the same time, a screw can extend out from the center and multiple angles, and can replace powerful combination tools such as drills, screwdrivers, wrenches and the like, the existing electric tools and manually available tools, when the screw cap is screwed, the screw head is slightly extended out and cannot be used, which is the biggest defect of common sleeves and earlier head-replaceable wrenches, and the wrench is clumsy when being operated manually, and has single function combination and angle.

The utility model discloses to prior art's not enough, provide one kind and do not receive the restriction that the screw length prolongs from the center when using the sleeve to twist the screw cap and characteristic, it is multi-functional to have the multi-angle again, and combined instrument can satisfy if the narrow environment in space extremely complicated waiting different kinds of user demand, this utility model when having the electricity electroless, can both reach the high efficiency use like damage such as motor battery or long-term manual handle for the dead zone.

As a specific embodiment of the present invention, as shown in fig. 1 to 4, a multifunctional combined electric wrench includes: the wrench comprises a wrench shell 1, a tool piece 2, a motor component 3, a first transmission component 4 and a second transmission component 5, wherein the first transmission component is connected with the motor component; the second transmission component is connected with the first transmission component, and a hollow sleeve 7 capable of driving the tool piece to rotate is arranged on the second transmission component. In this embodiment, the wrench housing may be provided with a first connection region and a second connection region. The wrench shell 1 is used as an external structure of the multifunctional combined electric wrench, and other structures are wrapped inside the multifunctional combined electric wrench; the tool 2 may include a structure such as a hexagonal socket or a screwdriver for mounting a nut, and may also include but is not limited to a screwdriver bit, a drill bit, and a socket connection seat, and different tool may be mounted according to the use requirement for different use scenarios, in this embodiment, the tool 2 is a screwdriver bit; the motor component 3 is used as a device for providing power and is arranged inside the wrench shell 1; the power that motor element 3 produced is transmitted to first transmission assembly 4 and second transmission assembly 5, first transmission assembly 4 is connected with motor element 3, second transmission assembly 5 is connected with first transmission assembly 4. The tool part 2 can be detachably connected to the first transmission assembly 4 via a first connection region 6 or to the second transmission assembly 5 via a second connection region. The connection mode can be set as threaded connection or hexagonal cylinder connection, when the connection mode is threaded connection, the connection between the tool piece and the transmission assembly is stable, and the processing of parts which are tightly connected can be processed; when the connection mode is hexagonal cylinder connection, can set up to magnetism and inhale the structure, be connected tool piece and transmission assembly. The wrench shell 1 is used for wrapping components such as a motor and the like in the wrench shell, plays a role in protection and installation, and can provide a handheld end part for a user to hold; the tool pieces 2 can be arranged into different varieties such as drills, screwdrivers and the like according to requirements and are used for directly contacting with objects to be processed to carry out operation; the motor component 3 is used for driving the transmission component to further provide power for the operation of the tool piece. The first transmission assembly 4 and the second transmission assembly 5 respectively transmit power for different tool pieces and are used as installation positions of the tool pieces; the first connecting area and the second connecting area are used as connecting spaces of the tool piece and the first transmission assembly and the second transmission assembly, different tool pieces can be installed in the two connecting areas according to needs, and due to the fact that a certain angle is formed between the two connecting areas, the tool piece located in the different connecting areas can process parts of various operating environments such as narrow spaces. For example, as shown in fig. 2 and 3, the screwdriver bit can be connected with the second transmission assembly 5 through the hollow sleeve 7, so as to rotate under the driving of the second transmission assembly for operation. And when the required operation environment is narrow and the electric wrench is not convenient to transversely place, as shown in the attached drawing 4, the screwdriver bit can be connected with the first transmission component 4, and the screwdriver bit can be driven by the first transmission component to rotate to operate, so that the electric wrench can adapt to the narrow operation environment.

According to the utility model discloses an embodiment, as shown in fig. 2, spanner housing 1 includes first casing 11 and second casing 12, become certain angle setting of buckling between first casing 11 and the second casing 12, motor element 3 and first transmission assembly 4 set up in first casing 11, second transmission assembly 5 arranges in second casing 12, first casing and second casing junction are provided with first linking area 6, are provided with on the second transmission assembly and drive the rotatory hollow sleeve of instrument spare. In some particular embodiments, the first and second housing axes are disposed at 90 degrees. The first housing 11 is used for placing the motor assembly 3 and the first transmission assembly 4, and the second housing 12 is used for placing the second transmission assembly. The effect that sets up to certain angle of buckling between first casing and the second casing lies in making to be located and to become certain angle between the first transmission assembly in the first casing and the second transmission assembly that is located the second casing, and then has guaranteed not to be in a straight line with the tool piece that different transmission assembly are connected, when operating space is not enough, can select to carry out the operation with the tool piece of suitable angle.

The utility model discloses a many function combination electric spanner of above-mentioned embodiment, through being provided with first casing and the second casing that is the setting of buckling each other, casing inside is provided with first transmission assembly and second transmission assembly respectively, be provided with a plurality of tool pieces in addition, place a plurality of tool pieces respectively in on the mount pad of being connected with different transmission assembly, this kind of connected mode makes a plurality of tool pieces be in different angles, for example can be in with spanner casing parallel or under the vertically state, the adaptable various constrictive operational environment of this spanner has been guaranteed, even also can normally operate in the unable environment of transversely placing of transmission spanner, the usage scenario is many units. In addition, the tool part is installed by adopting the rotatable hollow sleeve, the screwdriver bits and the drill bits with various sizes and different types can be matched and replaced, when in operation, for example, the screw cap is screwed, the limitation of the length of the screw can be avoided, and the tool part can be provided with functional parts such as hexagonal sleeve heads with different specifications, hexagonal handle screwdriver bits and the like.

According to an embodiment of the present invention, as shown in fig. 5, the first transmission assembly 4 comprises a first transmission structure 41 and a first mounting seat 42. One end of the first transmission structure 41 is connected with the motor assembly, and the end part of the other end is provided with a first mounting seat 42. The tool part 2 can be detachably connected to the first mounting seat 42 via the first connecting region 6. The first transmission structure 41 is directly connected with the motor assembly and transmits power to the tool piece and the second transmission assembly; the first mounting seat 42 is used as a mounting member for a tool piece provided to the first transmission assembly. In this embodiment, the first transmission structure is a rotating shaft, and two ends of the rotating shaft are respectively connected with the motor assembly and the first mounting seat; the first installation seat is arranged into a device containing an inner groove, the inner wall of the inner groove can be designed into a threaded structure or the first installation seat is designed into a magnetic attraction structure, and the first installation seat is connected with a tool piece through the magnetic attraction structure or the threaded structure.

According to an embodiment of the present invention, as shown in fig. 6, the second transmission assembly 5 includes a second transmission structure 51 and a second mounting seat 52. The second transmission structure 51 is connected with the end of the first transmission structure 41, and the second mounting seat 52 is arranged at the lower end of the second transmission structure. Similar to the first drive configuration, the tool part 2 can here be detachably connected to the second mounting socket 52 via the second connection region 7. The second transmission structure 52 is used for transmitting the power transmitted by the first transmission assembly 4 to the tool piece at the second transmission assembly 5; the second mounting seat is used for mounting a tool piece positioned at the second transmission assembly. Similar to the first mounting seat, in this embodiment, the second mounting seat is provided as a device including an inner groove, and the inner wall of the inner groove may be designed as a threaded structure or the second mounting seat may be designed as a magnetic attraction structure, through which the first mounting seat is connected to the tool.

According to an embodiment of the present invention, as shown in fig. 7, the first transmission structure 41 is provided with a first bevel gear 411, and the second transmission structure 51 is provided with a second bevel gear 511. The first bevel gear 411 is disposed at an end of the first transmission structure 41, and the second bevel gear 511 is disposed at an upper end of the second transmission structure and engaged with the first bevel gear. First bevel gear 411 mutually supports with second bevel gear 511, makes first drive assembly 4 be connected with second drive assembly 5, and this kind of connected mode has realized having certain angle of buckling between first drive structure and the second drive structure in the transmission power, can arrange in the same first casing and the second casing that become certain angle, and then has guaranteed that this many function combination electric spanner can multi-angle operation, deals with different service environment.

According to an embodiment of the present invention, as shown in fig. 8, the second transmission structure 51 includes a rotation member 514, a shaft gear 512 and a locking structure 513. The shaft gear 512 is disposed outside the rotating member 514, and the locking structure can be used to control the rotating member to lock the rotating member for one-way rotation. In this embodiment, the rotor is connected to the second bevel gear 511, and as the second bevel gear moves together, the shaft gear located outside the rotor also moves together with the rotor 514 without the interposition of the locking structure 513. The locking structure controls the rotation member to rotate in one direction and in both directions by engaging with the shaft gear and can adjust the direction of rotation in the case of the rotation in one direction. The unidirectional rotation and the bidirectional rotation respectively correspond to manual operation and electric operation, when the bidirectional rotation is performed, the rotatable side is used for returning, the non-rotatable side is used as the direction needing to work and move, and when the bidirectional rotation is performed, the bidirectional rotation is performed in an electric operation environment. The rotating member 514 can be used to drive the tool element located in the second transmission assembly to move, and the shaft gear 512 and the locking structure 513 cooperate to control the movement of the transmission assembly, so that the multifunctional combined electric wrench is in an electric or manual state.

According to an embodiment of the present invention, the locking structure 513 includes a first locking member 5131, a second locking member 5132, a switching member 5133, and an elastic member 5134. One end of the first locking member 5131 is connected to the second housing 12, and the other end thereof can be engaged with or separated from the shaft gear 512 by the switching member 5133. The first locking member 5131 and the second locking member 5132 are respectively disposed on two sides of the switching member 5133, one side of the first locking member 5131 is in contact with the inside of the second housing through an elastic member, and the other side of the first locking member 5131 can be pressed by the switching member to drive the end portion to be separated from the shaft gear. As shown in fig. 9, the switching member 5133 includes a pressing portion 5135 inside the second housing and a control portion 5136 outside the second housing. When the multifunctional combined electric wrench is required to be capable of being electrically operated, the switching piece 5133 is positioned in the center of the first locking piece and the second locking piece, and does not have a larger extrusion effect on one of the first locking piece and the second locking piece, at the moment, the two locking pieces are not meshed with the shaft gear, and the shaft gear can rotate in two directions; when the control part on the switching member is moved and one end of the pressing part is operated to deviate towards one locking member, one end, close to the shaft gear, of the locking member moves towards one side far away from the shaft gear under the action of the elastic member 5134, the locking member is not meshed with the shaft gear 512, meanwhile, the other locking member is meshed with the shaft gear, and then the shaft gear can rotate towards the direction of the locking member which is not meshed with the shaft gear. Similarly, when it is desired to rotate the tool member 2 in the other direction, the switching member 5133 is used to shift in the other locking member direction. In this embodiment, the first locking member 5131, the second locking member 5132 and the shaft gear are configured to be a ratchet structure, if the switching member is shifted to the first locking member direction, the whole tool can be smoothly rotated to the second locking member direction, such that the tool can be returned to the second locking member direction, such as a wrench, and when the tool is rotated to the opposite direction, the second locking member will be engaged with the shaft gear, such that the nut can be manually tightened. The electric wrench disclosed in the embodiment is provided with the locking structure through the second transmission structure, and can control the meshing of the shaft gear connected with the rotating part through the locking structure, and control the second transmission structure and the one-way and two-way rotation of the tool part connected with the second transmission structure, so that the manual work can be realized by converting the locking structure under the condition of no electricity or motor damage.

According to the embodiment of the present invention, as shown in fig. 10, the multifunctional combined electric wrench further includes a connecting passage 8 and a manual rotating rod 9. The connecting channel 8 is arranged inside the first shell 11, the manual rotating rod 9 can be connected with the first transmission structure 41 through the connecting channel 8, in the embodiment, the manual rotating rod and the first transmission structure can be connected through a gear, and when the manual rotating rod is required to be used under a manual condition, the combined tool can be driven to work by rotating the manual rotating rod. This embodiment is applicable in situations where the operating space is extremely limited. Connecting channel 8 is used for placing manual bull stick 9, and manual bull stick 9 is used for transmitting power to first drive structure, when unable when operating through rotating the casing, drives drive structure and then drives the tool piece through rotatory manual bull stick, carries out the processing of part.

The disclosed many function combination electric spanner of this embodiment, the removable different cover barrel heads of spanner casing tip, the long and short screw can run through from the center, and the spindle nose hexagonal can be joined in marriage simultaneously with the aircraft nose mouth with the operation such as different types screwdrivers of shape hexagonal handle, drill bit. With unique through-center socket head design mode, do not receive the screw to prolong the length that stretches out from the center when socket spanner 90 degrees twists the nut and restrict, functional component such as hexagonal socket head and hexagonal handle screwdrivers drill bit of different specifications can be installed to this aircraft nose mouth, can satisfy multiple user demand. Meanwhile, multiple functions are integrated, and multiple tools such as a hexagonal handle sleeve, a screwdriver, a drill bit and the like can be simultaneously matched and replaced to operate at 90 degrees and straight lines. The multifunctional combined electric wrench can flexibly and quickly work in various forms in narrow places when electricity or no electricity exists or a motor battery is damaged.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

In short, the above description is only a preferred embodiment of the present invention, and all the equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the scope of the present invention.

Claims

1. A multifunctional combined electric wrench is characterized by comprising a wrench shell, a tool piece, a motor component, a first transmission component and a second transmission component, wherein the motor component, the first transmission component and the second transmission component are arranged in the wrench shell; the first transmission assembly is connected with the motor assembly; the second transmission assembly is connected with the first transmission assembly;

the second transmission assembly is provided with a hollow sleeve which can drive the tool piece to rotate.

2. The multi-functional combination electric wrench of claim 1, characterized in that: the hollow sleeve is internally provided with a connecting channel for the tool piece connecting end to pass through.

3. The multi-functional combination electric wrench of claim 2, characterized in that: the tool pieces include but are not limited to screwdriver bits, drill bits, socket joints.

4. The multi-functional combination electric wrench of claim 3, characterized in that: spanner housing is including being first casing and the second casing that buckles the setting each other, motor element and first drive assembly set up in the first casing, second drive assembly set up in the second casing, first linkage region has been seted up to first casing tip, the first linkage region of instrument spare accessible with first drive assembly can dismantle the connection.

5. The multi-functional combination electric wrench of claim 4, characterized in that: the first shell and the second shell are arranged in a 90-degree mode.

6. The multi-functional combination electric wrench of claim 5, characterized in that: the end part of the first transmission component is provided with a first bevel gear, and the upper end part of the second transmission component is provided with a second bevel gear meshed with the first bevel gear.

7. The multi-functional combination electric wrench of claim 6, characterized in that: the second transmission assembly comprises a rotating piece, a shaft gear arranged around the outer side of the rotating piece and a locking structure capable of locking the rotating piece in a unidirectional rotation mode.

8. The multi-functional combination power wrench of claim 7, wherein: the locking structure comprises a first locking piece, a second locking piece and a switching piece capable of controlling the first locking piece and/or the second locking piece to be clamped with or separated from the shaft gear.

9. The multi-functional combination power wrench of claim 8, wherein: one end of the first locking piece is connected with the second shell, and the other end of the first locking piece can be clamped or separated with the shaft gear under the action of the switching piece.

10. The multi-functional combination electric wrench of claim 9, characterized in that: the first locking piece and the second locking piece are respectively arranged on two sides of the switching piece,

one side of the first locking piece is in contact with the inside of the second shell through an elastic piece, and the other side of the first locking piece can be extruded by the switching piece to drive the end part to be separated from the shaft gear.

11. The multi-functional combination electric wrench as claimed in any one of claims 4 to 10, wherein: the manual rotating rod is arranged in the first shell and can be connected with the first transmission assembly through the rotating channel.