CN220922223U

CN220922223U - Electric screw driver

Info

Publication number: CN220922223U
Application number: CN202322492530.XU
Authority: CN
Inventors: 金佳乐
Original assignee: Zhangjiagang City Junma Steel Cord Co ltd
Current assignee: Zhangjiagang City Junma Steel Cord Co ltd
Priority date: 2023-09-14
Filing date: 2023-09-14
Publication date: 2024-05-10
Anticipated expiration: 2033-09-14

Abstract

The utility model relates to the technical field of electric tools and discloses an electric screwdriver which comprises a tool main body part, a holding part, a rotary driving part, an end execution part and a grabbing mechanism, wherein the holding part is connected with the bottom of the tool main body part, the rotary driving part is rotatably connected with the side surface of the tool main body part, the end execution part is fixedly connected with the side surface of the rotary driving part, the grabbing mechanism comprises a rotary ring, a connecting block and a movable rod, the rotary ring is in threaded connection with the rotary driving part, the connecting block is slidably connected with the side surface of the rotary ring, and the movable rod is rotatably connected with the surface of the connecting block. According to the electric screwdriver disclosed by the utility model, the inclined movable rod is arranged, when the connecting block moves, the movable rod downwards applies thrust to the connecting piece, so that the sliding rod downwards slides along the side surface of the rotary driving part, the clamping ring moves along with the sliding rod, the screw placed on the side surface of the tail end executing part is grabbed, and the problem of displacement when the screw is screwed in and rotated can be solved while the screw grabbing function is realized.

Description

Electric screw driver

Technical Field

The utility model relates to the technical field of electric tools, in particular to an electric screwdriver with a screw grabbing function.

Background

The utility model relates to the technical field of screw drivers, in particular to an electric screw driver with a screw grabbing function.

Background

The electric screwdriver, also called electric screwdriver, is an electric tool for screwing and unscrewing screws, is a common tool for industrial enterprises and processing, and is one of the most widely used hand-held tools in the fields of equipment loading and unloading, maintenance, furniture building materials, electric appliance installation and the like.

From traditional manual screw driver to electric screw driver and pneumatic screw driver, the electric screw driver is not required to be manually screwed, the operation efficiency is greatly improved, the prior art not only develops the convenient functions of quick-change cape head, magnetic attraction assistance, flexible shaft screwing and the like in various scenes, but also has unexpected situations in actual operation scenes, for example, when the electric screw driver is used for screwing screws in the process of installing and maintaining steel cord threading equipment, the screws are likely to displace when rotating, so that the screws cannot be screwed into corresponding screw grooves, and inconvenience is brought to screw assembly.

Disclosure of utility model

According to a first aspect of the present utility model, an electric screwdriver capable of grabbing and fixing a screw is provided.

In order to achieve the above object, the technical scheme of the present utility model is as follows:

An electric screwdriver with a screw grabbing function comprises a tool main body part, a holding part, a rotary driving part, an end executing part and a grabbing mechanism arranged on the surface of the rotary driving part;

The tool comprises a tool main body part, a rotary driving part, a rotary torque output part, a rotary driving part and a rotary driving part, wherein the tool main body part is internally provided with a driving motor and a transmission mechanism meshed with an output shaft of the driving motor, and the rotary torque is output to the rotary driving part through the transmission mechanism so that the rotary driving part rotates at a high speed;

The end execution part is detachably arranged at the end of the rotary driving part and is driven by the rotary driving part to synchronously rotate at a high speed for operation; the rotation driving part and the tail end executing part are coaxial;

the holding part is arranged at the lower position of the tool main body part and is used for providing a holding space for user operation;

The transmission assembly comprises a rotating ring, a connecting block and a movable rod, wherein the rotating ring is in threaded connection with the surface of the rotary driving part, the side surface of the rotating ring is in sliding connection with the connecting block, and the surface of the connecting block is in rotary connection with the movable rod;

The stress component comprises a sliding rod, a connecting piece and a clamping ring, wherein the connecting piece is rotatably connected to the inner side wall of the movable rod, the sliding rod is fixedly connected to the bottom of the connecting piece, and the clamping ring is fixedly connected to the tail of the sliding rod.

Preferably, the surface laminating of end execution portion has the protection casing, the side fixedly connected with fixed plate of protection casing, the inside laminating of fixed plate has the picture peg with instrument main part fixed connection, the side fixedly connected with spring of fixed plate, the afterbody fixedly connected with fixture block of spring.

Preferably, the center of the circle of the rotary ring and the center of the circle of the rotary driving part are located at the same point, and the rotary ring drives the connecting block to form a sliding structure through rotation.

Preferably, the movable rod is obliquely arranged relative to the side face of the connecting block, and the joint of the movable rod, the connecting block and the connecting piece is positioned at the end point of the movable rod.

Preferably, the sliding rod is in sliding connection with the side surface of the rotary driving part, and the connecting piece drives the clamping ring to form a clamping structure through the movable rod.

Preferably, the protective cover is made of transparent plastic.

Preferably, the fixing plate is made of a spring piece, and the clamping block penetrates through the fixing plate and extends into the inserting plate.

By the technical scheme of the aspects, the electric screwdriver is provided with the movable rod which is obliquely arranged, when the connecting block moves, the movable rod can downwards apply thrust to the connecting piece, so that the sliding rod downwards slides along the side surface of the rotary driving part, the clamping ring moves along with the sliding rod, the screw arranged on the side surface of the tail end executing part is grabbed, and the problem of displacement of the screw during rotation is prevented;

Simultaneously, through setting up the protection casing of transparent material, when screwing up the screw, realize the guard action, reduce the personal injury to operating personnel to do not influence visual observation and operation. Through the linkage and the optimal design of protection casing and snatch structure, when the protection casing is dismantled to needs, to the inside of side pulling fixture block, make its roll-off picture peg, because the fixed plate is the spring leaf material, has certain elasticity, can dial it downwards, make it break away from and the picture peg contact, can take off the protection casing from instrument main part this moment, when the fixed plate cover is at the picture peg surface, loosen the fixture block, the fixture block can be fixed to the protection casing under the effect of spring elasticity into the inside of picture peg, facilitate the use and dismantlement.

It should be understood that all combinations of the foregoing concepts, as well as additional concepts described in more detail below, may be considered a part of the inventive subject matter of the present disclosure as long as such concepts are not mutually inconsistent. In addition, all combinations of claimed subject matter are considered part of the disclosed inventive subject matter.

The foregoing and other aspects, embodiments, and features of the present teachings will be more fully understood from the following description, taken together with the accompanying drawings. Other additional aspects of the utility model, such as features and/or advantages of the exemplary embodiments, will be apparent from the description which follows, or may be learned by practice of the embodiments according to the teachings of the utility model.

Drawings

The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by a like numeral. For purposes of clarity, not every component may be labeled in every drawing. Embodiments of various aspects of the utility model will now be described, by way of example, with reference to the accompanying drawings.

Fig. 1 is a schematic overall structure of an electric screw driver according to an embodiment of the utility model.

Fig. 2 is a schematic side view of the electric screw driver according to the present utility model.

Fig. 3 is a schematic view of a connector structure of the electric screw driver according to the present utility model.

Fig. 4 is a schematic diagram of a plug board structure of the electric screw driver according to the present utility model.

In the various illustrations, the reference numerals are defined as follows:

1. A tool body portion; 2. a grip portion; 3. a rotation driving part; 4. an end effector; 5. a rotating ring; 6. a joint block; 7. a movable rod; 8. a slide bar; 9. a connecting piece; 10. a clamping ring; 11. a protective cover; 12. a fixing plate; 13. a spring; 14. a clamping block; 15. and (5) inserting plates.

Detailed Description

For a better understanding of the technical content of the present utility model, specific examples are set forth below, along with the accompanying drawings.

Aspects of the utility model are described in this disclosure with reference to the drawings, in which are shown a number of illustrative embodiments. The embodiments of the present disclosure are not necessarily intended to include all aspects of the utility model. It should be understood that the various concepts and embodiments described above, as well as those described in more detail below, may be implemented in any of a number of ways, as the disclosed concepts and embodiments are not limited to any implementation. Additionally, some aspects of the disclosure may be used alone or in any suitable combination with other aspects of the disclosure.

{ Example 1}

The electric screwdriver of the embodiment shown in fig. 1 includes a tool main body portion 1, a grip portion 2, a rotation driving portion 3, an end effector 4, and a gripping mechanism provided on the surface of the rotation driving portion 3.

The tool main body part 1 can be made of a shell made of a hard plastic piece, and is manufactured and molded through a die and injection molding process, a cavity is defined in the tool main body part along the longitudinal direction of the tool main body part, a driving motor and a transmission mechanism meshed with an output shaft of the driving motor are accommodated in the cavity, the driving motor can sample an existing direct current brushless motor, and the rotary driving force of the motor is transmitted to the rotary driving part 3 at the front end of the tool through a planetary gear transmission mechanism, so that the rotary driving part 3 rotates at a high speed.

It should be understood that the design of the drive motor, planetary gear and their cooperation used in the present utility model may be implemented using a combination design as in the prior art.

In the present utility model, it is noted that the planetary gear transmission mechanism is connected to the rotary drive portion 3 through a drive shaft that extends from the inside of the tool main body portion 1 until being fixed in an integral structure with the rotary drive portion 3 outside the tool main body portion 1.

The rotary driving part 3 can be designed by adopting a three-jaw chuck, a quick-change type cape head chuck and the like, and the tail part of the rotary driving part is connected with the driving shaft through threads or keys so as to be fixed and synchronously rotated.

The head of the rotary driving part 3 can be provided with an end execution part 4, such as tightening accessories of different types and specifications, such as a cape head, a hexagonal wrench, a double offset ring wrench, etc., and when the rotary driving part 3 is driven to rotate at a high speed, the end execution part 4 rotates at a high speed synchronously to perform tightening or loosening operation.

As an alternative example, the end effector 4 is detachably attached to the end of the rotation drive unit 3, and is driven by the rotation drive unit 3 to perform a work in synchronization with the rotation at a high speed.

In an example of the present utility model, the rotation driving section is disposed concentrically with the end effector.

As shown in fig. 1, a grip portion 2 is provided at a lower position of the tool body portion 1 for providing a grip space for a user to operate.

In connection with the embodiment shown in fig. 2-4, the aforementioned gripping mechanism comprises a transmission assembly and a force bearing assembly.

The transmission assembly comprises a rotary ring 5, a connecting block 6 and a movable rod 7, wherein the rotary ring 5 is in threaded connection with the surface of the rotary driving part 3, the side surface of the rotary ring 5 is in sliding connection with the connecting block 6, and the surface of the connecting block 6 is in rotary connection with the movable rod 7.

The stress component comprises a slide bar 8, a connecting piece 9 and a clamping ring 10, the connecting piece 9 is rotatably connected to the inner side wall of the movable rod 7, the slide bar 8 is fixedly connected to the bottom of the connecting piece 9, and the clamping ring 10 is fixedly connected to the tail of the slide bar 8.

Further, the center of the rotary ring 5 and the center of the rotary driving part 3 are located at the same point, the rotary ring 5 drives the connecting block 6 to form a sliding structure through rotation, and when the rotary ring 5 rotates, the rotary ring drives the rotary ring to move rightward along the surface of the end execution part 4 and drives the connecting block 6 in sliding connection with the rotary ring to move rightward together.

In a further embodiment, the movable rod 7 is obliquely arranged with respect to the side surface of the connecting block 6, the joint of the movable rod 7 with the connecting block 6 and the connecting piece 9 is located at the end point of the movable rod 7, and when the connecting block 6 moves, the movable rod 7 applies a pushing force to the connecting piece 9 downwards through the movable rod 7 due to the obliquely arranged movable rod 7, so that the sliding rod 8 slides downwards along the side surface of the rotary driving part 3.

As an alternative embodiment, the sliding rod 8 is slidably connected with the side surface of the rotary driving part 3, the connecting piece 9 drives the clamping ring 10 through the movable rod 7 to form a clamping structure, when the sliding rod 8 moves, the clamping ring 10 moves along with the sliding rod, and the screw placed on the side surface of the end execution part 4 is grabbed, so that the problem of displacement of the screw during rotation is prevented.

{ Example 2}

As shown in fig. 1-4, a protective cover 11 is disposed on the surface of the end effector 4, and a fixing plate 12 is fixedly connected to the side surface of the protective cover 11.

The inside of fixed plate 12 is provided with picture peg 15 with instrument main part 1 fixed connection, and the side fixedly connected with spring 13 of fixed plate 12, the afterbody fixedly connected with fixture block 14 of spring 13.

Wherein, protection casing 11 is transparent plastics material, through setting up transparent protection casing 11, when screwing up the screw, realizes the guard action, reduces the personal injury to operating personnel to do not influence visual observation and operation, protection casing and the linkage and the optimal design of grabbing the structure simultaneously, when dismantling the protection casing, to the side pulling fixture block, make its roll-off picture peg 15's inside.

The fixing plate 12 is made of a spring piece, the clamping block 14 penetrates through the fixing plate 12 and extends into the insert plate 15, and the fixing plate 12 is made of a spring piece and has a certain elasticity, so that the fixing plate can be stirred downwards to be separated from contact with the insert plate 15, and the protective cover 11 can be taken off from the tool main body part 1.

In combination with the examples shown in fig. 1-4, when the electric screwdriver is used, firstly, a screw is placed on the side surface of the end execution part 4, the rotating ring 5 is screwed to rotate, and when the rotating ring 5 rotates, the rotating ring 5 is connected with the end execution part 4 through threads, and can drive the screw to move rightward along the surface of the end execution part 4 and drive the connecting block 6 which is connected with the screw in a sliding manner to move rightward together, and when the connecting block 6 moves, the movable rod 7 is arranged obliquely, the connecting piece 9 is pushed downwards through the movable rod 7, so that the slide rod 8 slides downwards along the side surface of the rotary driving part 3, the clamping ring 10 moves along with the screw, and the screw placed on the side surface of the end execution part 4 is grabbed, so that the problem of displacement of the screw during rotation is prevented.

While the utility model has been described with reference to preferred embodiments, it is not intended to be limiting. Those skilled in the art will appreciate that various modifications and adaptations can be made without departing from the spirit and scope of the present utility model. Accordingly, the scope of the utility model is defined by the appended claims.

Claims

1. An electric screw driver is characterized by comprising a tool main body part (1), a holding part (2), a rotary driving part (3), an end execution part (4) and a grabbing mechanism arranged on the outer peripheral surface of the rotary driving part (3);

the tool comprises a tool main body part (1), a driving motor and a transmission mechanism meshed with an output shaft of the driving motor, wherein the driving motor and the transmission mechanism are accommodated in the tool main body part (1), and a rotating torque is output to a rotating driving part (3) through the transmission mechanism, so that the rotating driving part (3) rotates at a high speed;

The end execution part (4) is detachably arranged at the end of the rotary driving part (3), and is driven by the rotary driving part (3) to synchronously rotate at a high speed to perform work; the rotation driving part (3) and the tail end executing part (4) are coaxial;

the holding part (2) is arranged at the lower position of the tool main body part (1) and is used for providing a holding space for user operation;

The grabbing mechanism comprises a transmission assembly and a stress assembly, the transmission assembly comprises a rotating ring (5), a connecting block (6) and a movable rod (7), the rotating ring (5) is in threaded connection with the surface of the rotating driving part (3), the side surface of the rotating ring (5) is in sliding connection with the connecting block (6), and the surface of the connecting block (6) is in rotary connection with the movable rod (7);

The bearing assembly comprises a sliding rod (8), a connecting piece (9) and a clamping ring (10), wherein the connecting piece (9) is rotatably connected to the inner side wall of the movable rod (7), the sliding rod (8) is fixedly connected to the bottom of the connecting piece (9), and the clamping ring (10) is fixedly connected to the tail of the sliding rod (8).

2. The electric screwdriver according to claim 1, wherein a protective cover (11) is arranged on the surface of the end execution part (4), and a fixing plate (12) is fixedly connected to the side surface of the protective cover (11); a plugboard (15) fixedly connected with the tool main body part (1) is arranged in the fixing plate (12);

The side of the fixed plate (12) is fixed with a spring (13), and the tail of the spring (13) is fixedly connected with a clamping block (14).

3. The electric screwdriver according to claim 1, wherein the center of the rotary ring (5) and the center of the rotary driving part (3) are positioned at the same point, and the rotary ring (5) drives the connecting block (6) to form a sliding structure through rotation.

4. Electric screwdriver according to claim 1, characterized in that the movable rod (7) is arranged obliquely with respect to the side of the engagement block (6).

5. Electric screwdriver according to claim 4, characterized in that the joint of the movable rod (7) with the joint block (6) and the connecting piece (9) is located at the end point of itself.

6. The motorized screw as set forth in claim 1, wherein: the sliding rod (8) is in sliding connection with the side face of the rotary driving part (3), and the connecting piece (9) drives the clamping ring (10) to form a clamping structure through the movable rod (7).

7. The motorized screw as set forth in claim 2, wherein: the protective cover (11) is made of transparent plastic.

8. The motorized screw as set forth in claim 2, wherein: the fixing plate (12) is made of a spring piece, and the clamping blocks (14) penetrate through the fixing plate (12) and extend into the inserting plate (15).