Electric screwdriver

Abstract

The utility model discloses an electric screwdriver which comprises an electric screwdriver body and a connecting and installing mechanism, a transmission shaft is installed in the electric screwdriver body through a motor, the left end of the transmission shaft penetrates through the electric screwdriver body and extends to the outside of the electric screwdriver body, and the connecting and installing mechanism is arranged on the transmission shaft. And the connecting and mounting mechanism comprises a rotating plate, the rotating plate is mounted at the left end of the transmission shaft, a base is arranged on the left side of the rotating plate, and an output shaft and a limiting and fixing mechanism are mounted on the left side of the base. Through mutual cooperation of the rotating plate, the base, the output shaft, the inserting block, the inserting groove, the clamping block, the clamping groove, the fixed groove, the movable block, a connecting groove, a sliding rod, a sliding block, a limiting block, a limiting groove, a movable block, a pull block and a fastening bolt, the output shaft and the electric screwdriver can be conveniently detached, and when the output shaft is abraded, the output shaft can be conveniently detached to be replaced; and the flexibility in use is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric screwdrivers, in particular to an electric screwdriver. Background Art

[0002] An electric screwdriver, also known as an electric screwdriver or electric screwdriver, is an electric tool used to tighten and loosen screws.

[0003] According to the application number: CN202020030832.9, a shock absorbing mechanism of an electric screwdriver and an electric screwdriver, the shock absorbing mechanism includes a first shock absorbing pad and a second shock absorbing pad, the first shock absorbing pad is arranged between the gear box of the electric screwdriver and the casing of the electric screwdriver, the first shock absorbing pad is close to the motor of the electric screwdriver, and the second shock absorbing pad is arranged between the motor of the electric screwdriver and the casing of the electric screwdriver.

[0004] In the above case, the electric screwdriver and the output shaft are integrally formed. When the output shaft is severely worn after long-term use, it cannot be disassembled and replaced, which affects the use of screws by the electric screwdriver and reduces its practicality. Utility Model Content

[0005] The purpose of the utility model is to provide an electric screwdriver to solve the problems raised in the above background technology.

[0006] To achieve the above purpose, the utility model provides the following technical solution: an electric screwdriver, comprising:

[0007] An electric screwdriver body, wherein a transmission shaft is installed inside the electric screwdriver body through a motor, and a left end of the transmission shaft penetrates the electric screwdriver body and extends to the outside thereof;

[0008] A connecting and mounting mechanism, the connecting and mounting mechanism is arranged on the transmission shaft, the connecting and mounting mechanism comprises a rotating plate, the rotating plate is mounted on the left end of the transmission shaft, a base is arranged on the left side of the rotating plate, and an output shaft is mounted on the left side of the base;

[0009] The position limiting and fixing mechanism is arranged on the rotating plate, and the position limiting and fixing mechanism comprises a fixing groove, and the fixing groove is opened on the top of the rotating plate.

[0010] Preferably, an insert block is installed on the right side of the base, a slot is opened on the left side of the rotating plate and corresponding to the position of the insert block, and the right side of the insert block passes through the slot and extends to the inside to contact the inner wall of the slot.

[0011] Preferably, a card block is installed on the right side of the inner wall of the slot, a card slot is opened on the right side of the insertion block and at the position corresponding to the card block, the left side of the card block passes through the card slot and extends to the inside to contact the inner wall of the card slot, and the card block and the card slot are square in shape.

[0012] Preferably, a moving block is in sliding contact with the inner wall of the fixed groove, and a connecting groove that is interconnected with the fixed groove is provided inside the rotating plate and on the left side of the fixed groove. The top and bottom of the inner wall of the connecting groove are fixedly connected by a sliding rod, and a sliding block is slidably connected to the surface of the sliding rod and the position corresponding to the moving block.

[0013] Preferably, a limit block is installed at the bottom of the sliding block, and a limit groove adapted to the limit block is opened at the top of the insert block and at the position corresponding to the limit block, and the bottom of the limit block passes through the connecting groove, the slot and the limit groove in sequence from top to bottom and extends to the interior of the limit groove and contacts with the inner wall of the limit groove.

[0014] Preferably, a movable block is installed on the top of the moving block, the top of the movable block passes through the fixing slot and extends to the outside thereof, a pulling block is installed on the top of the movable block, and a fastening bolt threadedly connected to the rotating plate is provided on the top of the pulling block.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] The utility model facilitates the separation of the output shaft and the electric screwdriver through the mutual cooperation of the rotating plate, the base, the output shaft, the insert block, the slot, the clamping block, the clamping slot, the fixing slot, the moving block, the connecting slot, the sliding rod, the sliding block, the limit block, the limit slot, the movable block, the pulling block and the fastening bolt. When the output shaft is worn, it is convenient to disassemble it for replacement, thereby improving the flexibility during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 It is a structural cross-sectional view of the front view of the utility model;

[0019] Figure 3 It is a structural cross-sectional view of the front view of the connecting and installing mechanism and the limiting and fixing mechanism of the utility model.

[0020] In the figure: 1 electric screwdriver body, 11 transmission shaft, 2 connection installation mechanism, 21 rotating plate, 22 base, 23 output shaft, 24 plug block, 25 slot, 26 card block, 27 card slot, 3 limit fixing mechanism, 31 fixed slot, 32 moving block, 33 connecting slot, 34 slide rod, 35 slide block, 36 limit block, 37 limit slot, 38 movable block, 39 pull block, 310 fastening bolt. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-3 An electric screwdriver comprises an electric screwdriver body 1, the interior of the electric screwdriver body 1 is fixedly connected with a transmission shaft 11 through a motor, and the left end of the transmission shaft 11 passes through the electric screwdriver body 1 and extends to the outside thereof.

[0023] The connecting and mounting mechanism 2 is arranged on the transmission shaft 11. The connecting and mounting mechanism 2 includes a rotating plate 21, which is installed at the left end of the transmission shaft 11. A base 22 is arranged on the left side of the rotating plate 21. The side of the base 22 close to the rotating plate 21 contacts the rotating plate 21. The left side of the base 22 is fixedly connected with an output shaft 23, and the right side of the base 22 is fixedly connected with an insertion block 24. A slot 25 is provided on the left side of the rotating plate 21 and corresponds to the position of the insertion block 24. The right side of the insertion block 24 penetrates the slot 25 and extends to the inside thereof and contacts the inner wall of the slot 25. A card block 26 is fixedly connected to the right side of the inner wall of the slot 25. A card slot 27 is provided on the right side of the insertion block 24 and corresponds to the position of the card block 26. The left side of the card block 26 penetrates the card slot 27 and extends to the inside thereof and contacts the inner wall of the card slot 27. The shape of the card block 26 and the card slot 27 are square.

[0024] The limiting fixing mechanism 3 is arranged on the rotating plate 21. The limiting fixing mechanism 3 includes a fixing groove 31. The fixing groove 31 is opened at the top of the rotating plate 21. A moving block 32 is slidably contacted on the inner wall of the fixing groove 31. A connecting groove 33 that is interconnected with the fixing groove 31 is opened inside the rotating plate 21 and located on the left side of the fixing groove 31. The top and bottom of the inner wall of the connecting groove 33 are fixedly connected by a sliding rod 34. A sliding block 35 is slidably connected to the surface of the sliding rod 34 and the position of the moving block 32. The right side of the sliding block 35 is fixedly connected to the left side of the moving block 32. The side of the sliding block 35 close to the inner wall of the connecting groove 33 is in sliding contact with the inner wall of the connecting groove 33. The sliding block 35 The bottom of the movable block 32 is fixedly connected to a limit block 36, and a limit groove 37 matched with the limit block 36 is provided at the top of the insert block 24 and at the position corresponding to the limit block 36. The bottom of the limit block 36 passes through the connecting groove 33, the slot 25 and the limit groove 37 from top to bottom in sequence and extends to the inside of the limit groove 37 and contacts with the inner wall of the limit groove 37. The top of the movable block 32 is fixedly connected to a movable block 38, and the top of the movable block 38 passes through the fixed groove 31 and extends to the outside thereof. The top of the movable block 38 is fixedly connected to a pull block 39, and the side of the pull block 39 close to the rotating plate 21 contacts with the rotating plate 21, and the top of the pull block 39 is provided with a fastening bolt 310 threadedly connected to the rotating plate 21.

[0025] Through the mutual cooperation of the rotating plate 21, the base 22, the output shaft 23, the insert block 24, the slot 25, the clamping block 26, the clamping slot 27, the fixing slot 31, the moving block 32, the connecting slot 33, the sliding rod 34, the sliding block 35, the limiting block 36, the limiting slot 37, the movable block 38, the pulling block 39 and the fastening bolt 310, it is convenient to disassemble the output shaft 23 and the electric screwdriver. When the output shaft 23 is worn, it is convenient to disassemble it for replacement, thereby improving the flexibility during use.

[0026] When in use, first loosen the fastening bolt 310, then pull the pulling block 39 upwards, the pulling block 39 drives the movable block 32 to move upwards through the movable block 38, and the movable block 32 drives the limiting block 36 to move upwards through the slider 35, so that the limiting block 36 and the limiting groove 37 are separated, and then the output shaft 23 is pulled leftward, and the output shaft 23 drives the inserting block 24 to move leftward through the base 22, so that the slot 27 and the blocking block 26 are separated. When the inserting block 24 and the slot 25 are separated, the output shaft 23 can be removed and replaced, so that the prepared output shaft 23 drives the inserting block 24 to be inserted into the slot 25 through the base 22, so that the blocking block 26 is inserted into the slot 27, and then the limiting block 36 is driven downward by the pulling block 39, so that the limiting block 36 is inserted into the limiting groove 37, and then the pulling block 39 is fixed by the fastening bolt 310.

[0027] In summary: the electric screwdriver solves the problems raised in the above-mentioned background technology through the mutual cooperation of the rotating plate 21, the base 22, the output shaft 23, the insert block 24, the slot 25, the clamping block 26, the clamping slot 27, the fixing slot 31, the moving block 32, the connecting slot 33, the sliding rod 34, the sliding block 35, the limiting block 36, the limiting slot 37, the movable block 38, the pulling block 39 and the fastening bolt 310.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electric screwdriver, characterized in that: include: An electric screwdriver body (1), wherein a transmission shaft (11) is installed inside the electric screwdriver body (1) via a motor, and the left end of the transmission shaft (11) passes through the electric screwdriver body (1) and extends to the outside thereof; A connecting and mounting mechanism (2), the connecting and mounting mechanism (2) being arranged on the transmission shaft (11), the connecting and mounting mechanism (2) comprising a rotating plate (21), the rotating plate (21) being arranged on the left end of the transmission shaft (11), a base (22) being arranged on the left side of the rotating plate (21), and an output shaft (23) being arranged on the left side of the base (22); A position limiting and fixing mechanism (3), wherein the position limiting and fixing mechanism (3) is arranged on the rotating plate (21), and the position limiting and fixing mechanism (3) comprises a fixing groove (31), and the fixing groove (31) is opened on the top of the rotating plate (21).

2. The electric screwdriver according to claim 1, characterized in that: An insert block (24) is installed on the right side of the base (22), a slot (25) is provided on the left side of the rotating plate (21) and at a position corresponding to the insert block (24), and the right side of the insert block (24) passes through the slot (25) and extends to the inside thereof to contact the inner wall of the slot (25).

3. The electric screwdriver according to claim 2, characterized in that: A card block (26) is installed on the right side of the inner wall of the slot (25); a card slot (27) is provided on the right side of the insert block (24) and at a position corresponding to the card block (26); the left side of the card block (26) penetrates the card slot (27) and extends to the inside thereof to contact the inner wall of the card slot (27); the card block (26) and the card slot (27) are square in shape.

4. The electric screwdriver according to claim 3, characterized in that: A moving block (32) is slidably contacted on the inner wall of the fixed groove (31); a connecting groove (33) is provided inside the rotating plate (21) and on the left side of the fixed groove (31) and is communicated with the fixed groove (31); the top and bottom of the inner wall of the connecting groove (33) are fixedly connected by a sliding rod (34); a sliding block (35) is slidably connected to the surface of the sliding rod (34) and corresponding to the position of the moving block (32).

5. The electric screwdriver according to claim 4, characterized in that: A limiting block (36) is installed at the bottom of the sliding block (35); a limiting groove (37) adapted to the limiting block (36) is provided at the top of the insert block (24) and at a position corresponding to the limiting block (36); the bottom of the limiting block (36) passes through the connecting groove (33), the slot (25) and the limiting groove (37) in sequence from top to bottom and extends to the inside of the limiting groove (37) and contacts the inner wall of the limiting groove (37).

6. The electric screwdriver according to claim 5, characterized in that: A movable block (38) is installed on the top of the moving block (32), the top of the movable block (38) passes through the fixing groove (31) and extends to the outside thereof, a pulling block (39) is installed on the top of the movable block (38), and a fastening bolt (310) threadedly connected to the rotating plate (21) is provided on the top of the pulling block (39).

Images