Electric wrench

Abstract

The utility model discloses an electric wrench which comprises a round seat, a transmission cavity and a power supply cavity are formed in the round seat, a storage battery is fixedly installed in the power supply cavity, a control button is fixedly installed on the left side of the top of the round seat, handles are symmetrically installed on the outer side of the round seat, and a handle is fixedly installed on the left side of the top of the round seat. A fixing sleeve is fixedly installed at the center position of the top of the circular base, a first rotating block is rotationally connected into the fixing sleeve, a rotating rod is fixedly connected to the center position of the bottom of the first rotating block, and the bottom end of the rotating rod penetrates through the fixing sleeve and extends out of the circular base to be fixedly provided with a rotating plate. The surface of the rotating rod located in the transmission cavity is fixedly connected with a driven gear. The electric wrench is reasonable in structural design, convenient to use and capable of achieving automatic screwing or unscrewing of screws, large manpower is not needed, efficiency is improved, rotating heads can be replaced according to screws of different models and sizes, and high practicability is achieved.

Description

Technical Field

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

[0002] Most of the existing wrenches are manual in design, which is laborious to use and can only fit a single type of screw. They are less practical and difficult to fully meet usage needs. Therefore, we propose an electric wrench to solve the problems raised in the above background technology. Utility Model Content

[0003] The purpose of the utility model is to provide an electric wrench to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an electric wrench, comprising a circular seat, wherein a transmission cavity and a power supply cavity are respectively provided inside the circular seat, a battery is fixedly installed inside the power supply cavity, a control button is fixedly installed on the left side of the top of the circular seat, a handle is symmetrically installed on the outside of the circular seat, a fixing sleeve is fixedly installed at the center position of the top of the circular seat, a first rotating block is rotatably connected inside the fixing sleeve, a rotating rod is fixedly connected at the center position of the bottom of the first rotating block, the bottom end of the rotating rod penetrates the fixing sleeve and extends to the outside of the circular seat to be fixedly installed with a rotating plate, a driven gear is fixedly connected to the surface of the rotating rod located inside the transmission cavity, a driving motor is fixedly installed on the top of the circular seat and on the right side corresponding to the fixing sleeve, the output shaft of the driving motor penetrates into the transmission cavity and is fixedly connected to a driving gear used in conjunction with the driven gear, a limiting sleeve is fixedly connected to the bottom of the rotating plate, a clamping rotating head is inserted at the bottom of the rotating plate and on the inner side corresponding to the limiting sleeve, and a locking mechanism for fixing the clamping rotating head is symmetrically installed on the outside of the limiting sleeve.

[0005] Further, the locking mechanism includes a fixed shell, which is fixedly connected to the outside of the limiting sleeve, a screw is provided on the left side of the fixed shell, the right end of the screw passes through the inside of the fixed shell and is fixedly connected to a second rotating block, the outside of the second rotating block is movably connected to a movable sleeve, the outside of the movable sleeve is slidably connected to the inner wall of the fixed shell through two guide sliders, a positioning rod is fixedly connected at the center position of the right side of the movable sleeve, and the right end of the positioning rod passes through the fixed shell and the limiting sleeve in sequence and extends to the inside of the engaging rotating head to be plugged therein.

[0006] Furthermore, a rotating handle is fixedly connected to the left end of the screw rod, and the screw rod is threadedly connected to the fixed shell.

[0007] Furthermore, the surface of the handle is covered with an anti-slip cover, and the anti-slip cover is specifically a rubber cover.

[0008] Furthermore, a charging port which is interconnected with the power supply cavity is provided at the bottom of the circular seat, and a sealing plug is provided in the charging port.

[0009] Furthermore, the storage battery is electrically connected to the control button and the drive motor respectively.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0011] The utility model discloses a kind of electric wrench, and it is characterized by reasonable structure and convenient use, and can realize automatic tightening or unscrewing of screws, and does not need to use large manpower, improves efficiency, and can replace the rotating head according to screws of different models and sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a main structural cross-sectional view of the utility model;

[0013] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0014] Figure 3 This is a front structural cross-sectional view of the locking mechanism of the utility model.

[0015] In the figure: 1 circular seat, 2 transmission cavity, 3 power supply cavity, 4 battery, 5 control button, 6 handle, 7 fixed sleeve, 8 first rotating block, 9 rotating rod, 10 rotating plate, 11 driven gear, 12 driving motor, 13 driving gear, 14 limiting sleeve, 15 engaging rotating head, 16 locking mechanism, 161 fixed shell, 162 screw, 163 second rotating block, 164 moving sleeve, 165 guide slider, 166 positioning clamping rod, 167 rotating handle, 17 anti-slip sleeve, 18 charging port, 19 sealing plug. DETAILED DESCRIPTION

[0016] 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.

[0017] See also Figure 1-3 An electric wrench comprises a circular seat 1, wherein a transmission cavity 2 and a power supply cavity 3 are respectively provided inside the circular seat 1, a battery 4 is fixedly installed inside the power supply cavity 3, a control button 5 is fixedly installed on the left side of the top of the circular seat 1, a handle 6 is symmetrically installed on the outside of the circular seat 1, a fixing sleeve 7 is fixedly installed at the center position of the top of the circular seat 1, a first rotating block 8 is rotatably connected inside the fixing sleeve 7, a rotating rod 9 is fixedly connected at the center position of the bottom of the first rotating block 8, and the bottom end of the rotating rod 9 passes through the fixing sleeve 7 and extends to the rotating sleeve 7 fixedly installed outside the circular seat 1 Plate 10, a driven gear 11 is fixedly connected to the surface of the rotating rod 9 located inside the transmission chamber 2, a driving motor 12 is fixedly installed on the top of the circular seat 1 and corresponding to the right side of the fixed sleeve 7, the output shaft of the driving motor 12 passes through the transmission chamber 2 and is fixedly connected to a driving gear 13 used in conjunction with the driven gear 11, the bottom of the rotating plate 10 is fixedly connected to a limiting sleeve 14, a locking rotating head 15 is inserted into the bottom of the rotating plate 10 and corresponds to the inner side of the limiting sleeve 14, and a locking mechanism 16 for fixing the locking rotating head 15 is symmetrically installed on the outer side of the limiting sleeve 14.

[0018] Specifically, the locking mechanism 16 includes a fixed shell 161, which is fixedly connected to the outside of the limiting sleeve 14. A screw 162 is provided on the left side of the fixed shell 161. The right end of the screw 162 passes through the inside of the fixed shell 161 and is fixedly connected to a second rotating block 163. The outside of the second rotating block 163 is movably connected to a movable sleeve 164. The outside of the movable sleeve 164 is slidably connected to the inner wall of the fixed shell 161 through two guide sliders 165. A positioning rod 166 is fixedly connected at the center position of the right side of the movable sleeve 164. The right end of the positioning rod 166 passes through the fixed shell 161 and the limiting sleeve 14 in sequence and extends to the inside of the engaging rotating head 15 to be plugged in.

[0019] Specifically, a rotating handle 167 is fixedly connected to the left end of the screw rod 162 , and the screw rod 162 is threadedly connected to the fixed shell 161 . The rotating handle 167 facilitates the user to rotate the screw rod 162 , thereby improving the convenience of operation.

[0020] Specifically, the surface of the handle 6 is covered with an anti-skid cover 17 , which is specifically a rubber cover. The anti-skid cover 17 can prevent the user from slipping when holding the handle 6 .

[0021] Specifically, a charging port 18 interconnected with the power supply cavity 3 is opened at the bottom of the circular seat 1. A sealing plug 19 is provided in the charging port 18. The charging port 18 can be used to charge the battery 4, and the sealing plug 19 can prevent external dust and debris from penetrating through the charging port 18.

[0022] Specifically, the battery 4 is electrically connected to the control button 5 and the drive motor 12 respectively. The number of the control button 5 can be set to two, which are respectively used to control the forward and reverse rotation of the output shaft of the drive motor 12 for screwing in or out the screw.

[0023] The electric wrench has a reasonable structural design and is easy to use. It can realize automatic tightening or unscrewing of screws without using a lot of manpower, thus improving efficiency. The rotating head can be replaced according to screws of different models and sizes, thus having high practicality.

[0024] When in use, according to the model and size of the screw to be rotated, an appropriate engaging rotating head 15 is selected, and it is inserted into the inner side of the limiting sleeve 14 and forms a preliminary connection with the rotating plate 10. Then, the two screw rods 162 on the outer side are rotated, and through the threaded connection with the fixed shell 161, the second rotating block 163 can be driven to rotate and move inward. Under the limiting guidance of the guide slider 165, the second rotating block 163 can push the movable sleeve 164 to translate inward, thereby driving the positioning clamping rod 166 to translate inward and insert it into the engaging rotating head 15 to form a fixation. When it is necessary to screw the screw in or out, hold the two handles 6 with both hands and press the control button 5. The battery 4 supplies power to the drive motor 12, so that its output shaft drives the driving gear 13 to rotate, and the driven gear 11 meshing therewith can drive the rotating rod 9, the rotating plate 10 and the locking mechanism 16 below to rotate under the connection between the fixed sleeve 7 and the first rotating block 8.

[0025] 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 wrench, comprising a circular seat (1), characterized in that: The circular seat (1) is provided with a transmission chamber (2) and a power supply chamber (3) respectively, a storage battery (4) is fixedly installed inside the power supply chamber (3), a control button (5) is fixedly installed on the left side of the top of the circular seat (1), a handle (6) is symmetrically installed on the outside of the circular seat (1), a fixing sleeve (7) is fixedly installed at the center position of the top of the circular seat (1), a first rotating block (8) is rotatably connected inside the fixing sleeve (7), a rotating rod (9) is fixedly connected at the center position of the bottom of the first rotating block (8), the bottom end of the rotating rod (9) passes through the fixing sleeve (7) and extends to the outside of the circular seat (1) where a rotating plate (10) is fixedly installed, A driven gear (11) is fixedly connected to the surface of a rotating rod (9) located inside the transmission chamber (2); a driving motor (12) is fixedly installed on the top of the circular seat (1) and on the right side of the corresponding fixing sleeve (7); an output shaft of the driving motor (12) passes through the transmission chamber (2) and is fixedly connected to a driving gear (13) used in conjunction with the driven gear (11); a limiting sleeve (14) is fixedly connected to the bottom of the rotating plate (10); a locking rotating head (15) is inserted into the bottom of the rotating plate (10) and corresponds to the inner side of the limiting sleeve (14); and a locking mechanism (16) for fixing the locking rotating head (15) is symmetrically installed on the outer side of the limiting sleeve (14).

2. An electric wrench according to claim 1, characterized in that: The locking mechanism (16) comprises a fixed shell (161), wherein the fixed shell (161) is fixedly connected to the outer side of the limiting sleeve (14), a screw rod (162) is provided on the left side of the fixed shell (161), the right end of the screw rod (162) penetrates into the fixed shell (161) and is fixedly connected to a second rotating block (163), the outer side of the second rotating block (163) is movably connected to a moving sleeve (164), the outer side of the moving sleeve (164) is slidably connected to the inner wall of the fixed shell (161) through two guide sliders (165), a positioning clamping rod (166) is fixedly connected at the center position of the right side of the moving sleeve (164), the right end of the positioning clamping rod (166) penetrates the fixed shell (161) and the limiting sleeve (14) in sequence and extends to the inside of the engaging rotating head (15) to be plugged therein.

3. An electric wrench according to claim 2, characterized in that: The left end of the screw rod (162) is fixedly connected to a rotating handle (167), and the screw rod (162) is threadedly connected to the fixed shell (161).

4. An electric wrench according to claim 3, characterized in that: The surface of the handle (6) is covered with an anti-slip cover (17), and the anti-slip cover (17) is specifically a rubber cover.

5. An electric wrench according to claim 4, characterized in that: The bottom of the circular seat (1) is provided with a charging port (18) which is in communication with the power supply cavity (3), and a sealing plug (19) is provided in the charging port (18).

6. An electric wrench according to claim 5, characterized in that: The storage battery (4) is electrically connected to the control button (5) and the drive motor (12) respectively.

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