CN112775884B

CN112775884B - Pistol type electric screw driver

Info

Publication number: CN112775884B
Application number: CN202110137829.6A
Authority: CN
Inventors: 霍建强; 江啟龙; 文露; 吴惠安
Original assignee: Guangdong Mick Technology Co ltd
Current assignee: Guangdong Mick Technology Co ltd
Priority date: 2021-02-01
Filing date: 2021-02-01
Publication date: 2023-08-25
Anticipated expiration: 2041-02-01
Also published as: CN112775884A

Abstract

The invention relates to the technical field of screwdrivers, in particular to a pistol type electric screwdriver, which comprises a main machine shell, a sliding cover and a base, wherein the inside of the main machine shell is of a hollow structure, the lower part of the main machine shell is connected with the base and is of an integrated structure, the side wall of the inner wall of the main machine shell is fixedly connected with one end of a connecting spring, the other end of the connecting spring is fixedly connected with the top wall of the inside of the sliding cover, sliding strips are arranged at the bottoms of the two sides of the sliding cover and are connected with guide grooves, the guide grooves are arranged on the side wall of the main machine shell, a touch key is further arranged at the top of the inside of the sliding cover and can be contacted with a reversing device, and the reversing device is connected with a brushless driver. The pistol type electric screwdriver can realize seamless connection of screwing in and screwing out, can also perform stepless linear torsion change adjustment, is convenient to store, carry and use the screwdriver head, and has strong functionality.

Description

Pistol type electric screw driver

Technical Field

The invention relates to the technical field of screwdrivers, in particular to a pistol type electric screwdrivers.

Background

The screwdriver is a tool for turning a screw to force the screw to be in place, and is usually provided with a thin wedge-shaped head which can be inserted into a slot or a notch of the screw head for positioning and screwing, and is commonly provided with a straight screwdriver and a cross screwdriver.

In view of the above, in order to facilitate the disassembly and assembly of different screws, many combined screwdrivers are commercially available, in which a plurality of screwdrivers are configured by detachably connecting a screwdriver bit and a screwdriver bar, and different specifications of screwdrivers are formed by replacing the screwdriver bit. The screwdriver has wide application range and strong practicability, but has the following technical problems: 1. if the screw on the side wall of the narrow space or the closed cavity is encountered, sometimes the screw needs to be screwed out of the vertical horse after screwing out, or the vertical horse is screwed in after screwing out, but the traditional screwdriver cannot realize seamless connection of screwing in and screwing out; 2. the mechanical single-mode torsion adjusting scheme is generally adopted, the torsion is output through a torsion spring, steel balls and a planetary gear box in the gear box, and a plurality of gears of 1-18 or 1-24 and the like are generally set, and the stepless linear torsion change adjustment cannot be realized because the gears are intermittent; 3. the screwdriver bit required to be replaced needs a specific place to be stored, is inconvenient to store, carry and use, and meanwhile, the replaced screwdriver bit or screwdriver rod is easy to lose if being stored improperly.

Disclosure of Invention

The invention provides a pistol type electric screwdriver aiming at the problems, which mainly solves the problems in the background technology.

The invention provides a pistol type electric screwdriver which comprises a main machine shell, a sliding cover and a base, wherein the inside of the main machine shell is of a hollow structure, the lower part of the main machine shell is connected with the base and is of an integrated structure, the side wall of the inner wall of the main machine shell is fixedly connected with one end of a connecting spring, the other end of the connecting spring is fixedly connected with the top wall of the inside of the sliding cover, sliding strips are arranged at the bottoms of the two sides of the sliding cover, the sliding strips are connected with guide grooves and are arranged on the side wall of the main machine shell, a touch key is further arranged at the top of the inside of the sliding cover and can be in contact with a reversing device, the reversing device is connected with a brushless driver, the brushless driver is fixed on a fixed plate and fixed on the inner wall of the main machine shell, the brushless driver is electrically connected with a conductive piece and is fixed on the fixed plate, the conductive piece is electrically connected with a push switch, the push switch is electrically connected with a battery, the conductive piece is also electrically connected with a brushless motor, an output shaft of the brushless motor is fixedly connected with a rod, and a through hole of the brushless motor of the boot is in contact with the side wall of the main machine shell.

The reversing device comprises a first metal sheet, a second metal sheet and a contact switch, wherein one end of the first metal sheet is fixedly connected with the outer wall of the brushless driver, the other end of the first metal sheet is connected with the second metal sheet, the first metal sheet and the second metal sheet are of an integrated structure and are of an L-shaped structure, the second metal sheet can be contacted with the contact switch, and the contact switch is electrically connected with the brushless driver.

The torque regulating switch is arranged on the main machine shell, rotates to the maximum torque position in the axial direction, applies pressure to the conducting strip to realize electric connection with the brushless driver, and controls the brushless motor to output electronic torque.

The improvement lies in, be equipped with logical groove and button sliding connection on the base lateral wall, button and locking piece one end fixed connection, the locking piece other end is equipped with the empty slot and is equipped with telescopic spring in the empty slot, telescopic spring and gag lever post contact and gag lever post set up on the inner wall of base, the gag lever post still with empty slot sliding connection, be equipped with fixture block and empty slot on the locking piece lateral wall and be located same one end, the fixture block contacts with the recess of connecting block, be equipped with inclined plane and inclined plane setting in the top of connecting block directly over the recess, the bottom and the cartridge clip piece of connecting block are connected and the cartridge clip piece contacts with the base inner wall.

The cartridge clip is characterized in that a first transverse plate, a second transverse plate and a third transverse plate are arranged on one side of the cartridge clip, a first storage cavity is formed by the upper portion of the side of the cartridge clip, the first transverse plate and the second transverse plate, and a second storage cavity is formed by the lower portion of the side of the cartridge clip, the second transverse plate and the third transverse plate.

The further improvement is that at least 1 screwdriver bit is respectively arranged on the first storage cavity and the second storage cavity, and the screwdriver bit can be inserted into the pole boot.

The further improvement is that a battery is fixed on the other side of the cartridge clip.

The further improvement is that the illuminating lamp is arranged below the pole boot and fixed on the side wall of the main machine shell, and the illuminating lamp is electrically connected with the push switch.

The conductive sheet is further improved in that the conductive sheet is made of copper.

The further improvement is that the materials of the first metal sheet and the second metal sheet comprise copper, iron and stainless steel.

Compared with the prior art, the invention has the beneficial effects that:

1. the sliding cover, the connecting spring, the reversing device and the brushless controller are matched, so that the output shaft of the brushless motor has the functions of forward rotation and reverse rotation, and seamless connection of screwing in and screwing out is realized.

2. The main machine shell is provided with the torsion adjusting switch, the torsion adjusting switch rotates clockwise to the maximum torsion position in the axial direction, the conducting strip is pressed to realize electric connection with the brushless driver, the brushless motor is controlled to output electronic torsion, and stepless linear torsion change adjustment is realized.

3. According to the invention, the button is pressed down to enable the locking block connected with the button to move, the empty groove on the locking block is in sliding connection with the limiting rod, the spring in the empty groove is extruded to enable the locking block to carry out limiting movement, meanwhile, the clamping block on the locking block is separated from the groove of the connecting block, the connecting block and the elastic clamping piece are integrally separated and limited by the inner wall of the base to move downwards, so that screwdriver heads on the first storage cavity and the second storage cavity in the elastic clamping piece can be taken out, and when the connecting block and the elastic clamping piece are pushed in upwards, the elastic deformation of the spring is utilized to enable the clamping block on the locking block and the groove of the connecting block to restore the clamping state, and the screwdriver heads can be stored conveniently.

Drawings

The drawings are for illustrative purposes only and are not to be construed as limiting the present patent; for the purpose of better illustrating the embodiments, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the actual product dimensions; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a schematic view of a sliding cover according to the present invention;

FIG. 3 is an exploded view of the present invention;

FIG. 4 is an enlarged view of a portion of the invention at A in FIG. 3;

FIG. 5 is a schematic diagram of a brushless motor connection according to the present invention;

FIG. 6 is a second exploded view of the present invention;

FIG. 7 is a schematic diagram of the connection block of the present invention;

FIG. 8 is a schematic diagram showing the connection of the lock block of the present invention.

Wherein: 1. a main body case; 2. a sliding cover; 3. a base; 4. a connecting spring; 5. a slide bar; 6. a guide groove; 7. touching the key; 8. a brushless driver; 9. a conductive sheet; 10. pressing the switch; 11. a battery; 12. a brushless motor; 13. a pole boot; 14. a first metal sheet; 15. a second metal sheet; 16. a contact switch; 17. a torsion adjusting switch; 18. a through groove; 19. a button; 20. a locking piece; 21. a hollow groove; 22. a telescopic spring; 23. a limit rod; 24. a clamping block; 25. a connecting block; 26. an inclined plane; 27. a clip member; 28. a first cross plate; 29. a second cross plate; 30. a third cross plate; 31. a lighting lamp; 32. a conductive wire; 33. a groove.

Detailed Description

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted", "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected or integrally connected; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, so to speak, the two elements are communicated internally. It will be understood by those of ordinary skill in the art that the terms described above are in the specific sense of the present invention. The technical scheme of the invention is further described below with reference to the accompanying drawings and examples.

Example 1, a pistol-type electric Screwdriver

Referring to fig. 1 and 2, the sliding cover comprises a main machine shell 1, a sliding cover 2 and a base 3, wherein the main machine shell 1 is of a hollow structure, the lower part of the main machine shell 1 is connected with the base 3 and is of an integrated structure, the side wall of the inner wall of the main machine shell 1 is fixedly connected with one end of a connecting spring 4, the other end of the connecting spring 4 is fixedly connected with the top wall of the sliding cover 2, sliding strips 5 are arranged at the bottoms of the two sides of the sliding cover 2, the sliding strips 5 are connected with guide grooves 6, and the guide grooves 6 are formed in the side wall of the main machine shell 1. When the sliding cover 2 is pulled, the sliding strips 5 at the bottoms of the two sides of the bottom of the sliding cover 2 are respectively connected with one guide groove 6 in a sliding way, so that the sliding cover 2 does limited linear movement, and the inner top wall of the sliding cover 2 is connected with the inner side wall of the main machine shell 1 through a spring, so that the sliding cover 2 is limited by self deformation capacity of the spring, and cannot be separated from the main machine shell 1.

The top of the inside of the sliding cover 2 is also provided with a touch key 7, the touch key 7 can be contacted with a reversing device, the reversing device is connected with a brushless driver 8, the brushless driver 8 is fixed on a fixed plate and the fixed plate is fixed on the inner wall of the main machine shell 1, the brushless driver 8 is electrically connected with a conducting sheet 9 and the conducting sheet 9 is fixed on the fixed plate, the conducting sheet 9 is electrically connected with a pressing switch 10, the pressing switch 10 is electrically connected with a battery 11, the conducting sheet 9 is also electrically connected with a brushless motor 12 and the brushless motor 12 is fixed on the inner wall of the main machine shell 1, an output shaft of the brushless motor 12 is fixedly connected with a pole shoe 13, and the pole shoe 13 is contacted with a through hole on the side wall of the main machine shell 1. The reversing device comprises a first metal sheet 14, a second metal sheet 15 and a contact switch 16, one end of the first metal sheet 14 is fixedly connected with the outer wall of the brushless driver 8, the other end of the first metal sheet 14 is connected with the second metal sheet 15, the first metal sheet 14 and the second metal sheet 15 are of an integrated structure, the first metal sheet 14 and the second metal sheet 15 are of an L-shaped structure, the second metal sheet 15 can be contacted with the contact switch 16, and the contact switch 16 is electrically connected with the brushless driver 8. The conductive sheet 9, the first metal sheet 14 and the second metal sheet 15 are made of copper. The slide cover moves to enable the touch key 7 to move, and along with the movement of the touch key 7, the touch key can be contacted with the second metal sheet 15, at this time, since the second metal sheet 15 is connected with one end of the first metal sheet 14, the other end of the first metal sheet 14 is connected with the outer wall of the brushless driver 8, and the first metal sheet 14 and the second metal sheet 15 are in an L-shaped structure, so that the second metal sheet 15 can take a "connection point" between the first metal sheet 14 and the second metal sheet 15 as a fixed point, a lever structure is formed, and the second metal sheet 15 can be contacted with the touch switch 16, the touch switch 16 can be a touch sensor, the touch switch 16 is electrically connected with the brushless driver 8, and the brushless driver 8 is in the prior art, when the touch switch 16 is connected with the brushless driver 8, the output shaft of the brushless driver 8 can be controlled to reversely rotate, and the software is not required to be combined, but the software is not in the scope of the protection of the invention, and is available on the basis of the knowledge of the skilled person.

As a preferable scheme of the invention, the main machine shell 1 is provided with a torsion adjusting switch 17, the torsion adjusting switch 17 rotates clockwise to the maximum torsion position in the axial direction, the conducting plate 9 is pressed to realize electric connection with the brushless driver 8, and the brushless motor 12 is controlled to output electronic torsion. That is, the torsion adjusting switch 17 is connected with a conductive wire 32, and the conductive wire 32 is in mechanical contact with the conductive sheet 9 to realize electrical connection with the brushless driver 8, so as to control the brushless motor 12 to output electronic torsion.

As a preferred scheme of the invention, a through groove 18 is arranged on the side wall of the base 3, the through groove 18 is in sliding connection with the button 19, the button 19 is fixedly connected with one end of the locking piece 20, the other end of the locking piece 20 is provided with a hollow groove 21, a telescopic spring 22 is arranged in the hollow groove 21, the telescopic spring 22 is in contact with a limiting rod 23, the limiting rod 23 is arranged on the inner wall of the base 3, the limiting rod 23 is also in sliding connection with the hollow groove 21, a clamping block 24 is arranged on the side wall of the locking piece 20, the clamping block 24 is positioned at the same end as the hollow groove 21, the clamping block 24 is in contact with a groove 33 of the connecting block 25, an inclined plane 26 is arranged right above the groove 33 and is arranged at the top of the connecting block 25, the bottom of the connecting block 25 is connected with a spring clamp 27, and the spring clamp 27 is in contact with the inner wall of the base 3. The clip 27 is provided with a first cross plate 28, a second cross plate 29 and a third cross plate 30 on one side, the upper part of the side of the clip 27, the first cross plate 28 and the second cross plate 29 form a first storage cavity, and the lower part of the side of the clip 27, the second cross plate 29 and the third cross plate 30 form a second storage cavity. The first storage cavity and the second storage cavity are respectively provided with at least 1 screwdriver bit, the screwdriver bit can be inserted into the rod boot 13, the screwdriver bit comprises a screwdriver bit and a screwdriver rod, the screwdriver bit is of a straight structure or a cross structure, the cross sections of the screwdriver rod and the rod boot 13 are hexagonal, and the screwdriver bit is not easy to slip off when rotating. The other side of the clip member 27 is fixed with a battery 11, and the battery 11 may be a lithium battery 11.

When the screw driver is used, the button 19 is pressed down by pressing the button 19, the empty slot 21 at the other end of the locking piece 20 is in sliding connection with the limit rod 23 on the inner wall of the base 3 due to the fact that the button 19 is fixedly connected with one end of the locking piece 20, the limit rod 23 is contacted with the telescopic spring 22 in the empty slot 21, the telescopic spring 22 is combined with the force of the telescopic spring 22 to deform the telescopic spring 22, the locking piece 20 performs limiting movement, at the moment, the clamping block 24 on the locking piece 20 is separated from the groove 33 of the connecting block 25, namely the clamping state, so that the connecting block 25 and the elastic clamp 27 are separated from the limited state, and under the action of the inner wall of the base 3, the connecting block 25 and the elastic clamp 27 move downwards, so that the screw driver head on the first storage cavity and the second storage cavity can be taken out, then the screw driver head on the first storage cavity or the second storage cavity is inserted into the rod boot 13, and then the screw head or the screw head can be screwed into the screw head or the screw head by pressing the slot 10.

As a preferable embodiment of the present invention, the illumination lamp 31 is provided under the pole shoe 13, and the illumination lamp 31 is fixed to the sidewall of the main body case 1, and the illumination lamp 31 is electrically connected to the push switch 10. When the switch 10 is pressed to be electrically connected to the battery 11, the illumination lamp 31 can be operated, and the illumination lamp 31 can be operated as in the prior art.

The specific implementation process comprises the following steps: in the use process, the button 19 is pressed to enable the clip 27 to pop up the base 3, a proper screwdriver bit is taken out, then the clip 27 is pushed in and fixed, then the screwdriver bit is inserted into the rod boot 13, the whole pistol type screwdriver is held, the screwdriver bit is inserted into a slot or a notch of a screw head, the push switch 10 is pressed, the brushless controller controls the brushless motor 12 to work, the brushless motor 12 drives the rod boot 13 and the screwdriver bit, the screw head is screwed in, when the screw head needs to be screwed out, the sliding cover 2 is pulled, the touch key 7 of the top wall inside the sliding cover 2 can be contacted with the second metal sheet 15, and the second metal sheet 15 is contacted with the contact switch 16, so that the brushless controller controls the output shaft of the brushless motor 12 to reversely rotate, and the screwing-out is realized.

In the drawings, the positional relationship is described for illustrative purposes only and is not to be construed as limiting the present patent; it is to be understood that the above examples of the present invention are provided by way of illustration only and not by way of limitation of the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.

Claims

1. The utility model provides a pistol type electric screwdriver which is characterized in that the pistol type electric screwdriver comprises a main machine shell (1), a sliding cover (2) and a base (3), wherein the inside of the main machine shell (1) is of a hollow structure, the lower part of the main machine shell (1) is connected with the base (3) and is of an integrated structure, the side wall of the inner wall of the main machine shell (1) is fixedly connected with one end of a connecting spring (4), the other end of the connecting spring (4) is fixedly connected with the inner top wall of the sliding cover (2), sliding strips (5) are arranged at the bottoms of the two sides of the sliding cover (2), the sliding strips (5) are connected with a guide groove (6) and the guide groove (6) are arranged on the side wall of the main machine shell (1), a touch key (7) is further arranged at the inner top of the sliding cover (2), the touch key (7) can be contacted with a reversing device, the reversing device is connected with a brushless driver (8), the brushless driver (8) is fixed on a fixed plate and the inner wall of the main machine shell (1), the brushless driver (8) is electrically connected with a conducting plate (9) and electrically connected with a conducting plate (10) electrically and electrically connected with a battery (10) electrically by a conducting plate (9), the conductive sheet (9) is also electrically connected with the brushless motor (12), the brushless motor (12) is fixed on the inner wall of the host shell (1), an output shaft of the brushless motor (12) is fixedly connected with the rod boot (13), and the rod boot (13) is contacted with a through hole on the side wall of the host shell (1);

the novel anti-theft lock is characterized in that a through groove (18) is formed in the side wall of the base (3) and is in sliding connection with the button (19), the button (19) is fixedly connected with one end of the lock block (20), an empty groove (21) is formed in the other end of the lock block (20), a telescopic spring (22) is arranged in the empty groove (21), the telescopic spring (22) is in contact with a limiting rod (23) and is arranged on the inner wall of the base (3), the limiting rod (23) is also in sliding connection with the empty groove (21), a clamping block (24) is arranged on the side wall of the lock block (20), the clamping block (24) is located at the same end with the empty groove (21), the clamping block (24) is in contact with a groove (33) of the connecting block (25), an inclined plane (26) is arranged right above the groove (33), the bottom of the connecting block (25) is connected with a clamping block piece (27), and the clamping block piece (27) is in contact with the inner wall of the base (3);

the motor is characterized in that a torque force adjusting switch (17) is arranged on the main machine shell (1), the torque force adjusting switch (17) rotates to the maximum torque force position in the axial direction, pressure is applied to the conducting strip (9) to realize electric connection with the brushless driver (8), and the brushless motor (12) is controlled to output electronic torque force.

2. The pistol type electric screwdriver according to claim 1, wherein the reversing device comprises a first metal sheet (14), a second metal sheet (15) and a contact switch (16), one end of the first metal sheet (14) is fixedly connected with the outer wall of the brushless driver (8), the other end of the first metal sheet (14) is connected with the second metal sheet (15), the first metal sheet (14) and the second metal sheet (15) are of an integral structure and are of an L-shaped structure, the second metal sheet (15) can be contacted with the contact switch (16), and the contact switch (16) is electrically connected with the brushless driver (8).

3. The pistol-type electric screwdriver according to claim 1, wherein a first transverse plate (28), a second transverse plate (29) and a third transverse plate (30) are provided on one side of the cartridge holder (27), a first storage chamber is formed by the upper side of the cartridge holder (27), the first transverse plate (28) and the second transverse plate (29), and a second storage chamber is formed by the lower side of the cartridge holder (27), the second transverse plate (29) and the third transverse plate (30).

4. A pistol-type electric screwdriver according to claim 3, characterized in that the first and second storage chambers are provided with not less than 1 screwdriver bit, respectively, which can be inserted into the rod shoe (13).

5. A pistol-type electric screwdriver according to claim 3, characterized in that the cartridge (27) is fixed on the other side with a battery (11).

6. The pistol type electric screwdriver according to any one of claims 1 to 5, wherein an illuminating lamp (31) is arranged below the pole shoe (13) and the illuminating lamp (31) is fixed on the side wall of the main machine shell (1), and the illuminating lamp (31) is electrically connected with the push switch (10).

7. The pistol-type electric screwdriver according to claim 6, wherein the conductive sheet (9) is copper.

8. The pistol-type electric screwdriver according to claim 6, wherein the first metal sheet (14) and the second metal sheet (15) are made of copper, iron and stainless steel.