CN220637713U

CN220637713U - Electric screw driver

Info

Publication number: CN220637713U
Application number: CN202321636598.4U
Authority: CN
Inventors: 李森
Original assignee: Suzhou Deli Technology Co ltd
Current assignee: Suzhou Deli Technology Co ltd
Priority date: 2023-06-26
Filing date: 2023-06-26
Publication date: 2024-03-22
Anticipated expiration: 2033-06-26

Abstract

The utility model discloses an electric screwdriver, comprising: a main body; the clamp seat is arranged at the front end of the main body; the driving assembly is arranged in the main body and is in transmission connection with the chuck seat; the main body further comprises a gear adjusting structure, wherein the gear adjusting structure is used for being operated by a user to adjust the rotation torque output by the driving assembly to switch among a plurality of torque gears; the gear selection mark is arranged on the outer side of the main body and used for indicating the size of a recommended screw corresponding to each torsion gear, and the gear selection mark comprises a maximum recommended screw diagram corresponding to each torsion gear; the maximum recommended screw diagram at least comprises diameter information of corresponding screws, so that the accuracy of torque gear selection can be improved, the situation that the torque gear is over-twisted or is not twisted due to mismatching of the torque gear is reduced, electric quantity is saved, and the service life of a driving assembly of the electric screwdriver is prolonged.

Description

Electric screw driver

Technical Field

The utility model belongs to the technical field of electric tools, and particularly relates to an electric screwdriver.

Background

In order to match different screws, a plurality of torque gears, such as first gear, second gear and third gear, are usually provided in a conventional electric screwdriver. The corresponding output torque force of each gear is different, so that the sizes of the screws which are suitable for screwing in each gear are different.

The existing electric screw driver cannot accurately judge what screw should be used for what torque gear when a user uses the electric screw driver (especially for DIY users). If the selected torque gear is too large, over-twisting or twisting fracture is easily caused; if the selected torque gear is too small, the twisting is easy to be caused to be stationary. The user needs to select the gear again, so that the working efficiency is reduced, and the experience is poor. Moreover, unsuitable torque gear damages the driving mechanism, so that the life of the driving mechanism is reduced, and the waste of electric energy and the charging frequency are increased.

Accordingly, there is a need for an improvement over the prior art to overcome the deficiencies described in the prior art.

Disclosure of Invention

Therefore, the utility model aims to solve the technical problems that in the prior art, the torque gear selection of the electric screwdriver depends on user identification and judgment, the accuracy cannot be ensured, the damage to the screwdriver is easy to cause, the service life is reduced, and the electric energy is wasted.

In order to solve the above technical problems, the present utility model provides an electric screwdriver, comprising:

a main body;

the clamp seat is arranged at the front end of the main body and is used for installing the screwdriver head;

the driving assembly is arranged in the main body, and is in transmission connection with the chuck seat and used for driving the chuck seat to rotate;

the battery is electrically connected with the driving assembly and is used for providing driving energy for the driving assembly;

the main body further comprises a gear adjusting structure, wherein the gear adjusting structure is used for being operated by a user to adjust the rotation torque output by the driving assembly to switch among a plurality of torque gears;

the gear selection mark is arranged on the outer side of the main body and used for indicating the size of a recommended screw corresponding to each torsion gear, and the gear selection mark comprises a maximum recommended screw diagram corresponding to each torsion gear; the maximum recommended screw diagram at least comprises diameter information of corresponding screws.

In one embodiment, the maximum recommended screw view is the profile of the corresponding screw.

In one embodiment, the gear selection identifier includes a diameter range of the recommended screw for each torque gear.

In one embodiment, the gear position adjustment structure and the gear position selection indicator are disposed adjacent to each other, the gear position selection indicator and the gear position adjustment structure being visible from the same perspective.

In one embodiment, the gear selection indicator is at least partially formed by a concave-convex outer surface of the main body.

In one embodiment, the gear selection indicator is a label applied to an outside surface of the main body.

In one embodiment, the main body is rod-shaped, the chuck base is coaxially arranged with the main body, and a part of the peripheral surface of the main body forms a holding area for holding.

In one embodiment, the main body includes a main body portion and a front end portion coaxially disposed with the main body portion, the chuck base is disposed at the front end portion, and the front end portion is rotatably disposed relative to the main body portion to switch the plurality of torque gears.

In one embodiment, the body portion is provided with an indication position, the position of the front end portion, which is close to the body portion, is provided with a gear mark, the front end portion rotates relative to the body portion, the gear mark can be alternatively aligned with the indication position, and the electric screwdriver can be in a working state of the gear mark, which is correspondingly indicated by the indication position.

In one embodiment, a power-off identifier is further arranged on one side, close to the gear identifier, of the front end portion, and when the indication position is aligned with the power-off identifier, the electric screwdriver is in a power-off state.

The technical scheme provided by the utility model has the following advantages:

the electric screwdriver provided by the utility model is characterized in that the outer side of the main body part is provided with the gear selection mark which is used for indicating the recommended screw size corresponding to each torsion gear, and the gear selection mark comprises a maximum recommended screw diagram corresponding to each torsion gear; the maximum recommended screw diagram at least comprises diameter information of the corresponding screw, so that a user can refer to and select the torsion gear of the matched screw, the accuracy of the selection of the torsion gear is improved, the situation that the torque gear is over-twisted or is not twisted due to mismatching of the torsion gear is reduced, the electric quantity is saved, and the service life of a driving assembly of the electric screwdriver is prolonged.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of an electric screwdriver according to an embodiment of the present utility model;

FIG. 2 is an enlarged schematic view of the area A of the electric screwdriver shown in FIG. 1;

fig. 3 is a schematic diagram of a gear selection indicator of an electric screwdriver according to another embodiment of the present utility model.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. The utility model will be described in detail hereinafter with reference to the drawings in conjunction with embodiments. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present utility model and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.

In the present utility model, unless otherwise indicated, terms of orientation such as "upper, lower, top, bottom" are used generally with respect to the orientation shown in the drawings or with respect to the component itself in the vertical, upright or gravitational direction; also, for ease of understanding and description, "inner and outer" refers to inner and outer relative to the profile of each component itself, but the above-mentioned orientation terms are not intended to limit the present utility model.

The embodiment provides an electric screwdriver which is used for installing and detaching screws. Fig. 1 is a schematic perspective view of an electric screwdriver according to an embodiment of the present utility model, and fig. 2 is an enlarged schematic view of a region a of the electric screwdriver shown in fig. 1. Referring to fig. 1 and 2, the electric screwdriver includes a main body 10, a grip holder 20, a driving assembly (not shown), and a battery (not shown).

The chuck base 20 is disposed at the front end of the main body 10, a chuck cavity is formed in the chuck base 20, and the chuck is adapted to be inserted into the chuck cavity to be non-rotatably connected with the chuck base 20. That is, the bits are rotationally coupled in synchronization with the chuck base 12 to effect torque transfer from the chuck base 12 to the bits.

The driving assembly is disposed inside the main body 10, and is in transmission connection with the chuck base 20, for driving the chuck base 20 to rotate. Specifically, the drive assembly includes the motor, and the motor is connected with the battery electricity, and when electric screwdriver was in operating condition, the battery provided driving energy for the motor. In this embodiment, the battery is provided inside the main body 10. In other alternative embodiments, the battery may be attached to the housing of the body. Typically, the battery is a rechargeable battery, such as a lithium battery or a nickel-chromium battery.

In this embodiment, the main body 10 is in a straight rod shape, the chuck base 20 is coaxially disposed with the main body 10, and a holding area is formed on a part of the outer periphery of the main body 11 for a user to hold to operate the electric screwdriver. The whole outline of the electric screwdriver is in a straight shape, so the electric screwdriver can also be used as a manual screwdriver, namely, the electric screwdriver can be driven manually or automatically to work. Therefore, the electric screwdriver provided in this embodiment may also be referred to as an automated manual screwdriver.

The main body 10 is also provided with a control key 113 for controlling the operation of the driving mechanism. Specifically, the control keys 113 include a forward rotation key and a reverse rotation key. Wherein, the forward rotation pressing key correspondingly controls the driving mechanism to rotate forward, and correspondingly screws. The reversing button reversely rotates corresponding to the driving mechanism and the disassembling screw. While the forward rotation key is continuously pressed, the driving mechanism keeps driving the chuck base 20 to rotate forward, and once the forward rotation key is released, the driving mechanism stops driving and the chuck base 20 stops rotating. Similarly, the drive mechanism keeps driving the chuck base 20 in reverse rotation during the duration of the reverse button being depressed, and once the reverse button is released, the drive mechanism stops driving and the chuck base 20 stops rotating. The forward rotation key and the reverse rotation key are arranged in the holding area of the main body part, so that the control key can be operated simultaneously under the condition that a user holds the holding area by hand, and the operation is convenient.

The main body 10 is also provided with an electric quantity display lamp 112, so that a user can know the residual electric quantity of the battery of the electric screwdriver at any time. Specifically, the number of the power display lamps 112 includes a plurality, and each power display lamp is used to represent a specific ratio of the remaining power. For example, when the number of the power display lamps 112 is 3, the lighting of each lamp indicates that the remaining power is about 33%, all 3 lamps are lighted, indicating that the battery power is 100%, and only one lamp is lighted, indicating that the remaining power is about 33%. Alternatively, the power display lamp can also use different colors to represent the quantity of the residual power, for example, a green lamp is used to represent 100-90% of the power, a yellow lamp is used to represent 80-40% of the power, and a red lamp is used to represent less than 40% of the power. The implementation of the power indicator lamp to indicate power is various and will not be described in detail here.

Because the screw size has multiple specifications, the required rotation torque of the screw with different diameters is different. The main body 10 further includes a gear adjustment structure for a user to operate to switch different torque gears. The gear adjusting structure is connected with the driving assembly, and can adjust the rotation torque output by the driving assembly, so that the output torque of the driving assembly is switched among a plurality of torque gears, and each torque gear is suitable for screwing a screw with a specification range.

Specifically, referring to fig. 1 and 2 with emphasis, the main body 10 includes a body portion 11 and a front end portion 12 disposed coaxially with the body portion 11. The front end portion 12 is provided at the front end of the body portion 11, the collet holder 20 is provided at the tip of the front end portion 12, the collet holder 20, the front end portion 12 and the body portion 11 are sequentially arranged in the front-rear direction, and the centerlines of the collet holder 20, the front end portion 12 and the body portion 11 are all collinear. The front end 12 is rotatably disposed relative to the body 11, the rotation axis thereof is the center line of the body 11, the front end 12 has a plurality of different rotation positions relative to the body 11, and the front end 12 can be switched before the plurality of different rotation positions to switch a plurality of different torque gears. When the required torque gear is determined, only the body portion 11 is held, the front end portion 12 is rotated, and the front end portion is rotated to a position corresponding to the torque gear.

More specifically, the body 11 is provided with an indication position 115, and the front end 12 is provided with a gear indicator 122 at a position close to the body 11. The gear identifier 122 corresponds to a plurality of gears that may be selected by the electric screwdriver, and the plurality of gears are sequentially arranged along the circumferential direction of the front end portion 12, for example, the gear identifier 122 may adopt roman numerals I, II and III to represent three different gears, and a larger number represents a larger gear corresponding to a larger torque force. The gear identifier 122 can be alternatively aligned with the indication position 115, and the electric screwdriver can be in an operating state of the gear identifier 122 corresponding to the indication position 115.

To facilitate power-on control of the electric screwdriver, a power-OFF mark OFF is further provided on a side of the front end portion 12 adjacent to the gear mark 122, and the front end portion 12 can be rotated to a position where the power-OFF mark OFF is aligned with the indicating position 115. When the indication bit 115 corresponds to the indication shutdown flag OFF, the electric screwdriver is in a shutdown state. In a specific implementation, before the torque gear is selected, the indication bits 115 of the electric screwdriver correspond to the positions for indicating the OFF state of the shutdown mark, and at this time, the electric screwdriver is in a non-working state, and the front end 12 is turned, so that the electric screwdriver can be correspondingly switched to the desired torque gear.

In other embodiments, the gear adjustment structure may also be configured in other forms. For example, the gear shifting button is in a form of a gear shifting button, one of the gear shifting buttons is corresponding to the shutdown position, each other of the gear shifting buttons is corresponding to one torsion gear, and the electric screwdriver can be controlled to be in the corresponding gear by shifting the gear shifting button to the corresponding torsion gear. Specifically, the gear shifting button comprises an operation button, the operation button is shifted between a plurality of positions along a straight line, and the gear shifting button can be selectively stopped at a position corresponding to one of the torque gears.

The electric screwdriver further comprises a gear selection mark 30 arranged on the outer side of the main body 10 and used for indicating the recommended screw size corresponding to each torque gear. The gear selection identifier comprises a maximum recommended screw diagram corresponding to each torque gear, wherein the maximum recommended screw diagram at least comprises diameter information of corresponding screws. The user can compare the diagram of the screw to be screwed with the maximum recommended screw diagram, and if the diameter is smaller than the diameter of the screw corresponding to the maximum recommended screw diagram corresponding to a certain torque gear but larger than the diameter of the screw corresponding to the maximum recommended screw diagram corresponding to a lower torque gear, the larger torque gear is selected.

In this embodiment, through setting up the gear selection sign in the main part outside, correspond the screw size that instructs different torsion gears to match to for the user refers to the torsion gear of selecting the matching screw, improves the accuracy of torsion gear selection, reduces because the condition that torsion gear mismatch leads to turning round or screwing motionless, has saved the electric quantity, has improved electric screwdriver's drive assembly's life.

Gear selection indicator 30 includes a range of diameters for each torque gear corresponding to the recommended screw. Referring to fig. 2 with emphasis, taking a 3-speed torque gear as an example, the gear selection flag 30 includes a first-speed flag 31, a second-speed flag 32, and a third-speed flag 33. The first gear mark 31 corresponds to the first gear torque gear, and the diameter range D of the screw suitable for screwing is 0-2mm; the second gear mark 31 corresponds to the second torque gear, and the diameter range D of the screw suitable for screwing is 2-3mm; the third gear mark 33 corresponds to a third torque gear, and the diameter range D of the third gear torque gear corresponding to the screwed screw is 3-4mm. Specifically, the shift position selecting indicator 30 may be provided on the body portion 11 or on the front end portion 12 as long as it is visible from the outer surface of the main body.

The maximum recommended screw diagram is a corresponding screw outline, and the gear mark corresponding to each torque gear comprises a corresponding screwed maximum recommended screw outline diagram. Specifically, the outline of the maximum recommended screw can be schematically drawn, for example, a rectangle is used to simply illustrate the outline of the screw, and the width of the rectangle is used as the diameter size of the screw. Alternatively, a projection view of the diameter of the screw or a real photo of the screw is used, as long as the diameter information of the corresponding screw can be displayed.

To facilitate the user's ability to directly operate the gear adjustment structure while viewing the gear selection indicator 30 without having to turn the power screwdriver. In an embodiment, the gear adjustment structure and the gear selection indicator 30 are disposed adjacent, and the gear selection indicator 30 and the gear adjustment structure can be seen from the same perspective. Therefore, after the user selects the matched torque gear with reference to the gear selection mark, the user can directly operate the gear adjusting structure to switch the electric screwdriver to the required gear, and the operation is more convenient.

In particular embodiments, the gear selection indicator may be formed by an outer surface of the body 10 that is concave-convex. Specifically, the outer surface of the main body 10 is concave-convex to form display patterns or characters, and the gear selection mark is correspondingly represented by the outline modeling of the main body 10, so that the gear selection mark and the main body 10 are integrally formed, and are not easy to lose and wear out.

Referring to fig. 3, in one embodiment, the gear selection indicator 30' is configured as a label that is applied to the outside surface of the main body. The label sets up the gum, and gum self-adhesion is in the main part outside, need not to change main part structure, and the cost is lower. In this embodiment, the range of torque force for gear I is 0-2N.m; the torque force range of the II gear is 2-4N.m, and the torque force range of the III gear is 4-5N.m. Correspondingly, the maximum recommended screw diagram is a picture or effect diagram of the screw.

To sum up, the utility model provides an electric screwdriver sets up gear selection sign in the main part for instruct the screw size that every torsion gear is suitable for, thereby make things convenient for the user to select, improve the accuracy that the torsion gear was selected, reduce because the condition that torsion gear mismatch leads to turning round or twist motionless, protected the screw, and saved the electric quantity, improved electric screwdriver's drive assembly's life. Further, the gear selection indicator is disposed adjacent to the gear adjustment structure, and the gear selection indicator and the gear adjustment structure can be seen from the same perspective, thereby facilitating operation of the gear adjustment structure while referencing the gear selection indicator.

It will be apparent that the embodiments described above are merely some, but not all, embodiments of the utility model. Based on the embodiments of the present utility model, those skilled in the art may make other different changes or modifications without making any creative effort, which shall fall within the protection scope of the present utility model.

Claims

1. An electric screwdriver, comprising:

a main body;

2. The motorized screwdriver as recited in claim 1, wherein the maximum recommended screw view is a profile of a corresponding screw.

3. The powered screwdriver of claim 1, wherein the gear selection indicator comprises a range of diameters for each torque gear corresponding to a recommended screw.

4. The powered screwdriver of claim 1, wherein the gear adjustment structure and the gear selection indicator are disposed adjacent, the gear selection indicator and the gear adjustment structure being viewable from the same perspective.

5. The electric screwdriver as recited in any one of claims 1-4, wherein the gear selection indicator is at least partially formed by an exterior surface relief of the body.

6. The electric screwdriver as recited in any one of claims 1-4, wherein the gear selection indicator is a label applied to an outside surface of the body.

7. The power screwdriver as claimed in claim 1, wherein the body is in a rod shape, the chuck base is coaxially disposed with the body, and a part of an outer circumferential surface of the body forms a grip area for gripping.

8. The electric screwdriver as defined in claim 1, wherein the main body includes a body portion and a front end portion coaxially disposed with the body portion, the chuck base being disposed at the front end portion, the front end portion being rotatably disposed with respect to the body portion to switch the plurality of torque gears.

9. The electric screwdriver as claimed in claim 8, wherein the body portion is provided with an indication position, the front end portion is provided with a gear mark near the body portion, the front end portion rotates relative to the body portion, the gear mark can be alternatively aligned with the indication position, and the electric screwdriver can be in an operating state of the gear mark indicated by the indication position.

10. The motorized screwdriver as recited in claim 9, wherein a power-on indicator is further provided on a side of the front end portion adjacent to the gear indicator, the motorized screwdriver being in a power-off state when the indicator is aligned with the power-on indicator.