CN212735826U

CN212735826U - Pen type electric screwdriver

Info

Publication number: CN212735826U
Application number: CN202020735575.9U
Authority: CN
Inventors: 何柳
Original assignee: Dongguan Goto Hardware Technology Co ltd
Current assignee: Dongguan Gutuo Electronic Technology Co ltd
Priority date: 2020-05-07
Filing date: 2020-05-07
Publication date: 2021-03-19
Anticipated expiration: 2030-05-07

Abstract

The utility model discloses a pen type electric screwdriver, including the sleeve, be equipped with power and drive arrangement in the sleeve, drive arrangement's output is equipped with planetary gear set, planetary gear set's output is equipped with synchronizer, and the built-in screwdriver head that is equipped with of synchronizer, synchronizer overcoat are equipped with the lag, and the lag overcoat is equipped with the front ring, front ring and telescopic one end swing joint, and telescopic other end and hougai swing joint have been covered after, and have been installed switch module. The utility model has small volume, convenient carrying and wide application range, realizes the automatic forward rotation, reverse rotation and stopping of the screwdriver bit through the linkage of the power supply, the driving device, the planetary gear set, the synchronizer and the control button, can conveniently and quickly switch between the automatic operation mode and the manual operation mode of the screwdriver, and meets different use requirements under different conditions; the sleeve, the rear cover and the switch component are matched, so that the power supply can be easily connected or disconnected with other components, and the operation is simple, convenient and quick.

Description

Pen type electric screwdriver

Technical Field

The utility model relates to a screwdriver technical field, in particular to pen-type electric screwdriver.

Background

The screwdriver is a common disassembling tool and is widely applied to aspects of production and life. Most of the existing screw drivers for production adopt an automatic mode, have high output power, stable performance and high production efficiency, but have generally large volume and narrow application range; in daily life, in order to be convenient to use, the manual mode operation screwdriver is mostly adopted, various household appliances and daily necessities can be disassembled, the application range is wider, and the operation is time-consuming and labor-consuming.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem to the defect that exists among the above-mentioned prior art, provide a pen type electric screwdriver, have small in size, convenient to carry can freely switch between automatic and manual mode, advantage such as the detachable wide range.

In order to solve the technical problem, the utility model discloses the technical scheme who takes as follows:

a pen-type electric screwdriver comprises a sleeve, wherein a power supply and a driving device electrically connected with the power supply are arranged in the sleeve, a planetary gear set is arranged at the output end of the driving device, and the driving device can drive the planetary gear set to rotate; the output end of the planetary gear set is provided with a synchronizing device, a screwdriver head is arranged in the synchronizing device, and the planetary gear set can drive the synchronizing device and the screwdriver head to synchronously rotate; a protective sleeve is sleeved outside the synchronizing device, a front ring is sleeved outside the protective sleeve, and the front ring is movably connected with one end of the sleeve; the other end of the sleeve is movably connected with a rear cover, the rear cover is provided with a switch assembly, and the switch assembly can be communicated with the power supply and the driving device.

Preferably, the sleeve is of a pen-type structure, a control button capable of controlling the operation of the driving device is arranged on the sleeve, and the control button is electrically connected with the power supply and the driving device.

Preferably, the synchronizing device comprises a synchronizing ring in transmission connection with an output shaft of the planetary gear set, and a plurality of notches are formed in the synchronizing ring at equal intervals; a fixed shaft is arranged in the synchronous ring, a positioning hole is formed in the center of the fixed shaft along the axis, and a buckle matched with the screwdriver head is arranged on the inner wall of the positioning hole; a shoulder is arranged on the fixed shaft, and a plurality of notches matched with the notches are formed in one side of the shoulder; and a synchronous block is arranged between each notch and the notch.

Preferably, the inner wall of the protective sleeve is provided with a step hole matched with the shoulder, and the outer wall of the protective sleeve is provided with a plurality of first clamping protrusions matched with the front ring.

Preferably, one end of each sleeve is provided with a second clamping groove, and the other end of each sleeve is provided with a first external thread; the front ring is provided with a second clamping protrusion matched with the second clamping groove and a first clamping groove matched with the first clamping protrusion, and the inner wall of the rear cover is provided with an inner thread matched with the first outer thread.

Preferably, the switch component comprises a pressing plate and a pressing block, a second external thread matched with the internal thread is arranged on the pressing plate, the pressing plate can be tightly pressed on the pressing block by rotating the rear cover, and the pressing block is pushed to be tightly pressed on the power supply.

Preferably, the power source is a battery, and the driving device is a motor.

Compared with the prior art, the beneficial effects of the utility model reside in that: through the matching linkage of the power supply, the driving device, the planetary gear set, the synchronizer and the control button, the screwdriver bit can automatically rotate in the forward direction, rotate in the reverse direction and stop immovable, can be conveniently and quickly switched between automatic operation and manual operation of the screwdriver, and can meet different use requirements under different conditions; the sleeve, the rear cover and the switch component are matched, so that the power supply can be easily connected or disconnected with other components, and the operation is simple, convenient and quick; the utility model discloses small in size, convenient to carry can be applied to the maintenance work of various digital electronic product, precision instruments and meters widely to and the simple work of disassembling in the life of house.

Drawings

Fig. 1 is a schematic sectional structure diagram of the present embodiment.

In the figure:

1. a sleeve; 101. a second card slot; 102. a first external thread; 2. a power source; 3. a drive device; 4. a planetary gear set; 5. a synchronization device; 501. a synchronizer ring; 502. cutting; 503. a fixed shaft; 504. positioning holes; 505. a shoulder; 506. cutting; 507. a synchronization block; 508. buckling; 6. a screwdriver head; 601. a third snap projection; 7. a protective sleeve; 701. a stepped bore; 702. a first snap projection; 8. a front ring; 801. a second snap projection; 802. a first card slot; 9. a rear cover; 901. an internal thread; 10. a switch assembly; 1001. pressing a plate; 1002. briquetting; 1003. a second external thread; 11. a control button; 12. a circuit board.

Detailed Description

The present invention will be described in further detail with reference to fig. 1.

The embodiments described by referring to the drawings are exemplary and intended to be used for explaining the present application and are not to be construed as limiting the present application. In the description of the present application, 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 are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting. 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 application, "a plurality" means two or more unless specifically limited otherwise. In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; 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 application can be understood by those of ordinary skill in the art as appropriate. In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. 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 above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

As shown in fig. 1, a pen-type electric screwdriver comprises a sleeve 1, a power supply 2 and a driving device 3 electrically connected with the power supply 2 are arranged in the sleeve 1, a planetary gear set 4 is arranged at the output end of the driving device 3, and the driving device 3 can drive the planetary gear set 4 to rotate; the output end of the planetary gear set 4 is provided with a synchronizer 5, a screwdriver head 6 is arranged in the synchronizer 5, and the planetary gear set 4 can drive the synchronizer 5 and the screwdriver head 6 to synchronously rotate; a protective sleeve 7 is sleeved outside the synchronizing device 5, a front ring 8 is sleeved outside the protective sleeve 7, and the front ring 8 is movably connected with one end of the sleeve 1; the other end of the sleeve 1 is movably connected with a rear cover 9, a switch assembly 10 is arranged on the rear cover 9, and the switch assembly 10 can be communicated with the power supply 2 and the driving device 3.

Preferably, the sleeve 1 is a pen-shaped structure, a control button 11 capable of controlling the operation of the driving device 3 is installed on the sleeve 1, and the control button 11 is electrically connected with the power source 2 and the driving device 3.

In this embodiment, a circuit board 12 is installed inside the sleeve 1, and the circuit board 12 is electrically connected to the control button 11, the power source 2 and the driving device 3. When the screwdriver is used, the front end or the rear end of the control button 11 is pressed, the control button 11 is communicated with the circuit board, the driving device 3 is controlled to rotate forwards or backwards respectively, the planetary gear set 4 is driven to rotate, the planetary gear set 4 drives the synchronizing device 5 to rotate forwards or backwards, and the screwdriver head 6 is driven to automatically screw or unscrew a screw; when manual operation is required, the rear cover 9 is only required to be unscrewed, the electrical connection between the power supply 2 and the driving device 3 is disconnected, the planetary gear set 4 stops rotating, the synchronizing ring 501, the fixed shaft 503 and the screwdriver head 6 stop moving, and the screwdriver can be manually operated to tighten or loosen the screw.

Preferably, the synchronizer 5 comprises a synchronizer ring 501 in transmission connection with the output shaft of the planetary gear set 4, and a plurality of notches 502 are arranged on the synchronizer ring 501 at equal intervals; a fixed shaft 503 is arranged in the synchronizing ring 501, a positioning hole 504 is formed in the center of the fixed shaft 503 along the axis, and a buckle 508 matched with the screwdriver head 6 is arranged on the inner wall of the positioning hole 504; a shoulder 505 is arranged on the fixed shaft 503, and a plurality of notches 506 matched with the notches 502 are arranged on one side of the shoulder 505; a synchronizing block 507 is arranged between each notch 506 and the notch 502.

In the embodiment, the number of the notches 502, the notches 506 and the synchronizing blocks 507 is three, the synchronizing blocks 507 are clamped between the notches 502 and the notches 506, synchronous rotation between the notches 502 and the notches 506 is guaranteed, the processing technology of each part is simple and convenient, and the production cost is low; the screwdriver head 6 is provided with the third clamping protrusion 601, and when the screwdriver is used, the third clamping protrusion 601 is clamped into the buckle 508 and is rotationally fixed, so that the screwdriver is convenient to use; in the embodiment, the screwdriver head 6 with a whole set of different calibers and different bore diameters is matched, the extension rod is also matched, and the disassembling range of the electric screwdriver is further expanded.

Preferably, the inner wall of the protecting jacket 7 is provided with a step hole 701 adapted to the shoulder 505, and the outer wall of the protecting jacket 7 is provided with a plurality of first clamping protrusions 702 adapted to the front ring 8.

Preferably, one end of the sleeve 1 is provided with a second clamping groove 101, and the other end is provided with a first external thread 102; a second clamping protrusion 801 matched with the second clamping groove 101 and a first clamping groove 802 matched with the first clamping protrusion 702 are arranged on the front ring 8, and an internal thread 901 matched with the first external thread 102 is arranged on the inner wall of the rear cover 9.

Preferably, the switch assembly 10 includes a pressing plate 1001 and a pressing block 1002, the pressing plate 1001 is provided with a second external thread 1003 matching with the internal thread 901, and the rear cover 9 is rotated to press the pressing plate 1001 against the pressing block 1002 and push the pressing block 1002 against the power supply 2.

In this embodiment, the pressing plate 1001 is disposed at one end of the pressing block 1002, so that the pressing block 1002 can be stably pressed on the end surface of the power supply 2 as a whole, the connection stability between the power supply 2 and the driving device 3 can be ensured, the connection is prevented from being affected by vibration generated in the process of automatically rotating the screw by the screwdriver, and the working stability of the screwdriver can be ensured; a small hole is formed in the middle of the pressure plate 1001 to facilitate the removal of the pressure plate 1003 from the rear cover 9.

Preferably, the power source 2 is a battery and the driving device 3 is a motor.

In the embodiment, the power supply 2 adopts a 850mAh lithium battery, the sleeve 1, the front ring 8 and the rear cover 9 are made of aluminum alloy materials, the planetary gear set 4, the protecting sleeve 7 and the switch component 10 are made of 304 stainless steel materials, and the screwdriver is light and small in whole and convenient to carry; the synchronizer 5 can be matched and connected with various screwdriver bits, small drill bits, adapters and extension rods, can be widely applied to disassembling work of daily necessities, digital products and various precision instruments, and has wide application range.

During assembly, the fixing shaft 503 is inserted into the step hole 701 of the protecting sleeve 7, the shoulder 505 is pressed in the step hole 701, the screwdriver head 6 is inserted into the positioning hole 504 on the fixing shaft 503 and is clamped into the buckle 508 for fixation, and the first clamping protrusion 702 of the protecting sleeve 7 is clamped into the first clamping groove 802 of the front ring 8; inserting the synchronizing ring 501, placing a synchronizing block 507 in each cut 502, and clamping the second clamping protrusion 801 of the front ring 8 into the second clamping groove 101 of the sleeve 1 for fixation; the rear cover 9 is rotated to be fixed to the sleeve 1. When the utility model works, the rear cover 9 is screwed, the push switch component 10 is pressed tightly on the power supply 2, and the power supply 2 is electrically communicated with the driving device 3; the front end of the control button 11 is pressed, the driving device 3 rotates forwards to drive the planetary gear set 4, the synchronizing ring 501, the fixed shaft 503 and the screwdriver head 6 to rotate forwards, and screws can be screwed; the rear end of the control button 11 is pressed, the driving device 3 rotates reversely to drive the planetary gear set 4, the synchronizing ring 501, the fixed shaft 503 and the screwdriver bit to rotate reversely, and the screw can be loosened; the rear cover 9 is unscrewed to disconnect the electrical connection between the power supply 2 and the driving device 3, the planetary gear set 4, the synchronizing ring 501, the fixing shaft 503 and the screwdriver head 6 are not moved, and at the moment, the screwdriver can be manually operated to screw or unscrew the screw.

The above is not intended to limit the technical scope of the present invention, and any modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention are all within the scope of the technical solution of the present invention.

Claims

1. A pen-type electric screwdriver is characterized by comprising a sleeve, wherein a power supply and a driving device electrically connected with the power supply are arranged in the sleeve, a planetary gear set is arranged at the output end of the driving device, and the driving device can drive the planetary gear set to rotate; the output end of the planetary gear set is provided with a synchronizing device, a screwdriver head is arranged in the synchronizing device, and the planetary gear set can drive the synchronizing device and the screwdriver head to synchronously rotate; a protective sleeve is sleeved outside the synchronizing device, a front ring is sleeved outside the protective sleeve, and the front ring is movably connected with one end of the sleeve; the other end of the sleeve is movably connected with a rear cover, the rear cover is provided with a switch assembly, and the switch assembly can be communicated with the power supply and the driving device.

2. The pen-type electric screwdriver as claimed in claim 1, wherein the sleeve is pen-type, and a control button capable of controlling the operation of the driving device is mounted on the sleeve and electrically connected to the power source and the driving device.

3. The electric pen-type screwdriver as claimed in claim 1, wherein the synchronizing device comprises a synchronizing ring in transmission connection with the output shaft of the planetary gear set, and the synchronizing ring is provided with a plurality of notches at equal intervals; a fixed shaft is arranged in the synchronous ring, a positioning hole is formed in the center of the fixed shaft along the axis, and a buckle matched with the screwdriver head is arranged on the inner wall of the positioning hole; a shoulder is arranged on the fixed shaft, and a plurality of notches matched with the notches are formed in one side of the shoulder; and a synchronous block is arranged between each notch and the notch.

4. The pen-type electric screwdriver according to claim 3, wherein the inner wall of the protecting sleeve is provided with a stepped hole matched with the shoulder, and the outer wall of the protecting sleeve is provided with a plurality of first clamping protrusions matched with the front ring.

5. The pen-type electric screwdriver according to claim 4, wherein one end of the sleeve is provided with a second clamping groove, and the other end of the sleeve is provided with a first external thread; the front ring is provided with a second clamping protrusion matched with the second clamping groove and a first clamping groove matched with the first clamping protrusion, and the inner wall of the rear cover is provided with an inner thread matched with the first outer thread.

6. The pen-type electric screwdriver according to claim 5, wherein the switch assembly comprises a pressing plate and a pressing block, the pressing plate is provided with a second external thread matched with the internal thread, and the pressing plate can be tightly pressed on the pressing block and the pressing block can be pushed to be tightly pressed on the power supply by rotating the rear cover.

7. The electric pen-type screwdriver according to claim 1, wherein the power source is a battery and the driving device is a motor.